East Bay MUD (CA) Water Quality

East Bay MUD is a large public water system in EPA region 9 that provides tap water for the 94501, 94502, 94507, 94525, 94526, 94530, 94542, 94545 - 94547, 94552, 94553, 94563, 94564, 94569, 94577 - 94580, 94583, 94596 - 94598, 94602, 94603, 94606 - 94613, 94619, 94702 - 94710, 94801, 94804 - 94806 zip codes. It has 11 facilities where the water supply was tested for 93 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 58.386 µg/L. The maximum reported level of Manganese was 12.7 µg/L. There were 2 contamintants found in the East Bay MUD water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (19)
1,2,3-trichloropropane (19)
1,2-diphenylhydrazine (2)
1,3-butadiene (19)
1,4-dioxane (19)
1-butanol (17)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (19)
17-alpha-ethynylestradiol (19)
17-beta-estradiol (19)
1H,1H,2H,2H-perfluorodecane sulfonic acid (19)
1H,1H,2H,2H-perfluorohexane sulfonic acid (19)
1H,1H,2H,2H-perfluorooctane sulfonic acid (19)
2,4-dinitrotoluene (16)
2,6-dinitrotoluene (16)
2-methoxyethanol (17)
2-propen-1-ol (Allyl Alcohol) (17)
4,4'-dichloro dichlorophenyl ethylene (DDE) (16)
4,8-dioxa-3H-perfluorononanoic acid (19)
4-androstene-3,17-dione (19)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (19)
alpha-hexachlorocyclohexane (17)
anatoxin-a (32)
bromochloromethane (Halon 1011) (19)
bromomethane (19)
Butylated Hydroxyanisole (17)
chlorate (38)
chlorodifluoromethane (HCFC-22) (19)
chloromethane (19)
chlorpyrifos (17)
chromium (38)
chromium-6 (38)
cobalt (38)
cylindrospermopsin (32)
diazinon (2)
dimethipin (17)
dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (16)
diuron (2)
equilin (19)
estriol (19)
estrone (19)
ethoprop (17)
fonofos (2)
Germanium (17)
HAA5 (five regulated haloacetic acids) (64)
HAA6Br (six brominated haloacetic acids) (64)
HAA9 (nine haloacetic acids) (64)
hexafluoropropylene oxide dimer acid (GenX) (19)
linuron (2)
lithium (19)
Manganese (17)
methyl-tertiary-butyl-ether (MTBE) (16)
molinate (16)
molybdenum (38)
N-ethyl perfluorooctanesulfonamidoacetic acid (17)
N-methyl perfluorooctanesulfonamidoacetic acid (17)
nitrobenzene (2)
nitrobenzene (16)
nonafluoro-3,6-dioxaheptanoic acid (19)
o-toluidine (17)
oxyfluorfen (17)
perchlorate (16)
perfluoro(2-ethoxyethane)sulfonic acid (19)
perfluoro-3-methoxypropanoic acid (19)
perfluoro-4-methoxybutanoic acid (19)
perfluorobutanesulfonic acid (38)
perfluorobutanoic acid (19)
perfluorodecanoic acid (19)
perfluorododecanoic acid (19)
perfluoroheptanesulfonic acid (19)
perfluoroheptanoic acid (38)
perfluorohexanesulfonic acid (38)
perfluorohexanoic acid (19)
perfluorononanoic acid (38)
perfluorooctanesulfonic acid (38)
perfluorooctanoic acid (38)
perfluoropentanesulfonic acid (19)
perfluoropentanoic acid (19)
perfluorotetradecanoic acid (17)
perfluorotridecanoic acid (17)
perfluoroundecanoic acid (19)
profenofos (17)
prometon (2)
quinoline (17)
s-ethyl-dipropylthiocarbamate (EPTC) (16)
strontium (38)
tebuconazole (17)
terbacil (16)
terbufos (2)
testosterone (19)
total microcystins (28)
Total Permethrin (17)
tribufos (17)
vanadium (38)

1,1-dichloroethane (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,2,3-trichloropropane (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,2-diphenylhydrazine (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: ?

Contaminant Details

1,3-butadiene (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.1 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.1 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.1 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.1 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.1 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.1 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.1 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.1 µg/L
Reference Level: ?

Contaminant Details

1,4-dioxane (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.07 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.07 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.07 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.07 µg/L
Reference Level: ?

Contaminant Details

1-butanol (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<2 µg/L

Below Reporting Level

11/27/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<2 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<2 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<2 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<2 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.005 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

17-alpha-ethynylestradiol (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0009 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0009 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0009 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0009 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0009 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0009 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0009 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0009 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0009 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0009 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0009 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0009 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0009 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0009 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0009 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0009 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0009 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0009 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0009 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.0009 µg/L
Reference Level: ?

Contaminant Details

17-beta-estradiol (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0004 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0004 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0004 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0004 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0004 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0004 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0004 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0004 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0004 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0004 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0004 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.0004 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.005 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.005 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

2,4-dinitrotoluene (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

2,6-dinitrotoluene (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

2-methoxyethanol (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.4 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.4 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

11/27/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.4 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.4 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.4 µg/L
Reference Level: 21 µg/L

Contaminant Details

2-propen-1-ol (Allyl Alcohol) (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.5 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.5 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.5 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.5 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.5 µg/L

Below Reporting Level

11/27/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.5 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.5 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.5 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.5 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.5 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.5 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.5 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.5 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.5 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.5 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.5 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.5 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: 35 µg/L

Contaminant Details

4,4'-dichloro dichlorophenyl ethylene (DDE) (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.8 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.8 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.8 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.8 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.8 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.8 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.8 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.8 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.8 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 0.8 µg/L
Reference Level: ?

Contaminant Details

4,8-dioxa-3H-perfluorononanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

4-androstene-3,17-dione (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0003 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0003 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0003 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0003 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0003 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0003 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0003 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0003 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0003 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0003 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0003 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0003 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0003 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0003 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0003 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0003 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0003 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0003 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0003 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.0003 µg/L
Reference Level: ?

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.002 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

alpha-hexachlorocyclohexane (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.01 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.01 µg/L
Reference Level: 0.006 µg/L

Contaminant Details

anatoxin-a (32)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/12/2018

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

bromochloromethane (Halon 1011) (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.06 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.06 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.06 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.06 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.06 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.06 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.06 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.06 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.06 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.06 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.06 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.06 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.06 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.06 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.06 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.06 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.06 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.06 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.06 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.06 µg/L
Reference Level: ?

Contaminant Details

bromomethane (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Butylated Hydroxyanisole (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/22/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

8/8/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

6/13/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

chlorate (38)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

200 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 180 µg/L

11/18/2015

10 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

130 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 110 µg/L

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

84 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 64 µg/L

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

480 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 460 µg/L

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

430 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 410 µg/L

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

250 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 230 µg/L

7/16/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

290 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 270 µg/L

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

250 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 230 µg/L

7/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

220 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 200 µg/L

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

200 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 180 µg/L

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

190 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 170 µg/L

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

150 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 130 µg/L

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

130 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 110 µg/L

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

120 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 100 µg/L

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

230 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 210 µg/L

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

100 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 80 µg/L

4/29/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

160 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 140 µg/L

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

160 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 140 µg/L

4/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 120 µg/L

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 120 µg/L

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

130 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 110 µg/L

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

110 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 90 µg/L

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

96 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 76 µg/L

4/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

91 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 71 µg/L

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

210 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 190 µg/L

2/25/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

84 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 64 µg/L

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

110 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 90 µg/L

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

97 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 77 µg/L

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

76 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 56 µg/L

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

68 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 48 µg/L

1/8/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

270 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 250 µg/L

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

240 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 220 µg/L

10/9/2013

12 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

160 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 140 µg/L

10/9/2013

12 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

160 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 140 µg/L

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

150 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 130 µg/L

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

150 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 130 µg/L

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 120 µg/L

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

120 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 100 µg/L

10/9/2013

12 years ago

Minimum Reporting Level: 20 µg/L
Reference Level: ?

Contaminant Details

chlorodifluoromethane (HCFC-22) (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.08 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.08 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.08 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.08 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.08 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.08 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.08 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.08 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.08 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.08 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.08 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.08 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.08 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.08 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.08 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.08 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.08 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.08 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.08 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.08 µg/L
Reference Level: ?

Contaminant Details

chloromethane (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chlorpyrifos (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: 2 µg/L

Contaminant Details

chromium (38)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2015

10 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/16/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/16/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

2/25/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chromium-6 (38)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

0.13 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.1 µg/L

11/18/2015

10 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

0.073 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.043 µg/L

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

12/2/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

0.084 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.054 µg/L

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

0.22 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.19 µg/L

7/16/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

0.054 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.024 µg/L

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

0.045 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.015 µg/L

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.045 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.015 µg/L

7/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.039 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.009 µg/L

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.032 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.002 µg/L

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.03 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0 µg/L

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

0.088 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.058 µg/L

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

0.057 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.027 µg/L

4/29/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.067 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.037 µg/L

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.065 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.035 µg/L

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

0.062 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.032 µg/L

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.058 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.028 µg/L

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.054 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.024 µg/L

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.052 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.022 µg/L

4/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.042 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.012 µg/L

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

0.041 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.011 µg/L

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.035 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.005 µg/L

3/10/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.049 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.019 µg/L

2/25/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.06 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.03 µg/L

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.056 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.026 µg/L

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.056 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.026 µg/L

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.045 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.015 µg/L

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.066 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.036 µg/L

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.056 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.026 µg/L

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.054 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.024 µg/L

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.05 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.02 µg/L

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.05 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.02 µg/L

10/9/2013

12 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.045 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.015 µg/L

10/9/2013

12 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

0.042 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.012 µg/L

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

0.032 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.002 µg/L

10/9/2013

12 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

cobalt (38)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<1 µg/L

Below Reporting Level

1/7/2015

10 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<1 µg/L

Below Reporting Level

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<1 µg/L

Below Reporting Level

7/16/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/16/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<1 µg/L

Below Reporting Level

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

2/25/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

cylindrospermopsin (32)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

9/11/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

6/12/2018

7 years ago

Minimum Reporting Level: 0.09 µg/L
Reference Level: 0.7 µg/L

Contaminant Details

diazinon (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: ?

Contaminant Details

dimethipin (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: 140 µg/L

Contaminant Details

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

diuron (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

equilin (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

estriol (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0008 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0008 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0008 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0008 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0008 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0008 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0008 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0008 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0008 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0008 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0008 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0008 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0008 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0008 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0008 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0008 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0008 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0008 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0008 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.0008 µg/L
Reference Level: ?

Contaminant Details

estrone (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

ethoprop (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: 1.14 µg/L

Contaminant Details

fonofos (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: ?

Contaminant Details

Germanium (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

HAA5 (five regulated haloacetic acids) (64)

Eden Tap

Distribution System ℹ️

30 µg/L

Meets Reporting Threshold

1/9/2019

6 years ago

Blackhawk Tap

Distribution System ℹ️

29 µg/L

Meets Reporting Threshold

1/9/2019

6 years ago

Skyline Tap

Distribution System ℹ️

28 µg/L

Meets Reporting Threshold

1/9/2019

6 years ago

Walnut Creek Tap 02

Distribution System ℹ️

25 µg/L

Meets Reporting Threshold

1/9/2019

6 years ago

Welle Tap

Distribution System ℹ️

41.33 µg/L

⚠️ Exceeds 50% of Reference Level

1/8/2019

6 years ago

Berkeley Tap #2

Distribution System ℹ️

24 µg/L

Meets Reporting Threshold

1/8/2019

6 years ago

Birch Tap

Distribution System ℹ️

43.34 µg/L

⚠️ Exceeds 50% of Reference Level

1/7/2019

6 years ago

Acorn Tap

Distribution System ℹ️

34 µg/L

⚠️ Exceeds 50% of Reference Level

1/7/2019

6 years ago

Bishop Tap

Distribution System ℹ️

32 µg/L

⚠️ Exceeds 50% of Reference Level

1/7/2019

6 years ago

Danville Tap

Distribution System ℹ️

27 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

Valley View Tap

Distribution System ℹ️

27 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

Walnut Creek Tap 03

Distribution System ℹ️

27 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

Berkeley View Tap

Distribution System ℹ️

26 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

Gwin Tap

Distribution System ℹ️

24 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

Montclair Tap

Distribution System ℹ️

23 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

San Leandro Tap 02

Distribution System ℹ️

18.54 µg/L

Meets Reporting Threshold

1/7/2019

6 years ago

Berkeley View Tap

Distribution System ℹ️

26 µg/L

Meets Reporting Threshold

11/28/2018

7 years ago

Bishop Tap

Distribution System ℹ️

39.4 µg/L

⚠️ Exceeds 50% of Reference Level

10/10/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

34 µg/L

⚠️ Exceeds 50% of Reference Level

10/10/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

33 µg/L

⚠️ Exceeds 50% of Reference Level

10/10/2018

7 years ago

Danville Tap

Distribution System ℹ️

32 µg/L

⚠️ Exceeds 50% of Reference Level

10/10/2018

7 years ago

Eden Tap

Distribution System ℹ️

56.9 µg/L

❗ Exceeds 80% of Reference Level

10/9/2018

7 years ago

Birch Tap

Distribution System ℹ️

55.87 µg/L

❗ Exceeds 80% of Reference Level

10/9/2018

7 years ago

Welle Tap

Distribution System ℹ️

54.1 µg/L

❗ Exceeds 80% of Reference Level

10/9/2018

7 years ago

Acorn Tap

Distribution System ℹ️

39.9 µg/L

⚠️ Exceeds 50% of Reference Level

10/9/2018

7 years ago

Gwin Tap

Distribution System ℹ️

39 µg/L

⚠️ Exceeds 50% of Reference Level

10/9/2018

7 years ago

Skyline Tap

Distribution System ℹ️

35 µg/L

⚠️ Exceeds 50% of Reference Level

10/9/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

34 µg/L

⚠️ Exceeds 50% of Reference Level

10/9/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

33 µg/L

⚠️ Exceeds 50% of Reference Level

10/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

31.1 µg/L

⚠️ Exceeds 50% of Reference Level

10/9/2018

7 years ago

Valley View Tap

Distribution System ℹ️

30 µg/L

Meets Reporting Threshold

10/9/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

31 µg/L

⚠️ Exceeds 50% of Reference Level

10/8/2018

7 years ago

Gwin Tap

Distribution System ℹ️

46 µg/L

⚠️ Exceeds 50% of Reference Level

7/11/2018

7 years ago

Berkeley View Tap

Distribution System ℹ️

43 µg/L

⚠️ Exceeds 50% of Reference Level

7/11/2018

7 years ago

Acorn Tap

Distribution System ℹ️

36 µg/L

⚠️ Exceeds 50% of Reference Level

7/11/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

32.6 µg/L

⚠️ Exceeds 50% of Reference Level

7/11/2018

7 years ago

Danville Tap

Distribution System ℹ️

32.5 µg/L

⚠️ Exceeds 50% of Reference Level

7/11/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

31.6 µg/L

⚠️ Exceeds 50% of Reference Level

7/11/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

38.4 µg/L

⚠️ Exceeds 50% of Reference Level

7/10/2018

7 years ago

Welle Tap

Distribution System ℹ️

58.386 µg/L

❗ Exceeds 80% of Reference Level

7/9/2018

7 years ago

Birch Tap

Distribution System ℹ️

51.41 µg/L

❗ Exceeds 80% of Reference Level

7/9/2018

7 years ago

Skyline Tap

Distribution System ℹ️

46 µg/L

⚠️ Exceeds 50% of Reference Level

7/9/2018

7 years ago

Eden Tap

Distribution System ℹ️

43.5 µg/L

⚠️ Exceeds 50% of Reference Level

7/9/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

41.5 µg/L

⚠️ Exceeds 50% of Reference Level

7/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

40.8 µg/L

⚠️ Exceeds 50% of Reference Level

7/9/2018

7 years ago

Valley View Tap

Distribution System ℹ️

36.7 µg/L

⚠️ Exceeds 50% of Reference Level

7/9/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

31.2 µg/L

⚠️ Exceeds 50% of Reference Level

7/9/2018

7 years ago

Bishop Tap

Distribution System ℹ️

29.1 µg/L

Meets Reporting Threshold

7/9/2018

7 years ago

Welle Tap

Distribution System ℹ️

45.4 µg/L

⚠️ Exceeds 50% of Reference Level

4/11/2018

7 years ago

Birch Tap

Distribution System ℹ️

39.8 µg/L

⚠️ Exceeds 50% of Reference Level

4/11/2018

7 years ago

Acorn Tap

Distribution System ℹ️

28.9 µg/L

Meets Reporting Threshold

4/11/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

25.4 µg/L

Meets Reporting Threshold

4/11/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

25.4 µg/L

Meets Reporting Threshold

4/11/2018

7 years ago

Danville Tap

Distribution System ℹ️

24.1 µg/L

Meets Reporting Threshold

4/11/2018

7 years ago

Berkeley View Tap

Distribution System ℹ️

32.4 µg/L

⚠️ Exceeds 50% of Reference Level

4/10/2018

7 years ago

Skyline Tap

Distribution System ℹ️

32 µg/L

⚠️ Exceeds 50% of Reference Level

4/10/2018

7 years ago

Gwin Tap

Distribution System ℹ️

31.7 µg/L

⚠️ Exceeds 50% of Reference Level

4/10/2018

7 years ago

Eden Tap

Distribution System ℹ️

30.8 µg/L

⚠️ Exceeds 50% of Reference Level

4/10/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

27 µg/L

Meets Reporting Threshold

4/10/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

26.6 µg/L

Meets Reporting Threshold

4/10/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

25.6 µg/L

Meets Reporting Threshold

4/10/2018

7 years ago

Valley View Tap

Distribution System ℹ️

33.6 µg/L

⚠️ Exceeds 50% of Reference Level

4/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

30.4 µg/L

⚠️ Exceeds 50% of Reference Level

4/9/2018

7 years ago

Bishop Tap

Distribution System ℹ️

28.9 µg/L

Meets Reporting Threshold

4/9/2018

7 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: 60 µg/L

Contaminant Details

HAA6Br (six brominated haloacetic acids) (64)

Eden Tap

Distribution System ℹ️

2.8 µg/L

1/9/2019

6 years ago

Walnut Creek Tap 02

Distribution System ℹ️

1.63 µg/L

1/9/2019

6 years ago

Blackhawk Tap

Distribution System ℹ️

1.18 µg/L

1/9/2019

6 years ago

Skyline Tap

Distribution System ℹ️

1.04 µg/L

1/9/2019

6 years ago

Welle Tap

Distribution System ℹ️

7.25 µg/L

1/8/2019

6 years ago

Berkeley Tap #2

Distribution System ℹ️

1.24 µg/L

1/8/2019

6 years ago

Birch Tap

Distribution System ℹ️

8.57 µg/L

1/7/2019

6 years ago

San Leandro Tap 02

Distribution System ℹ️

6.84 µg/L

1/7/2019

6 years ago

Montclair Tap

Distribution System ℹ️

1.47 µg/L

1/7/2019

6 years ago

Gwin Tap

Distribution System ℹ️

1.36 µg/L

1/7/2019

6 years ago

Acorn Tap

Distribution System ℹ️

1.32 µg/L

1/7/2019

6 years ago

Berkeley View Tap

Distribution System ℹ️

1.3 µg/L

1/7/2019

6 years ago

Valley View Tap

Distribution System ℹ️

1.29 µg/L

1/7/2019

6 years ago

Bishop Tap

Distribution System ℹ️

1.22 µg/L

1/7/2019

6 years ago

Walnut Creek Tap 03

Distribution System ℹ️

1.16 µg/L

1/7/2019

6 years ago

Danville Tap

Distribution System ℹ️

1.12 µg/L

1/7/2019

6 years ago

Berkeley View Tap

Distribution System ℹ️

1.8 µg/L

11/28/2018

7 years ago

Danville Tap

Distribution System ℹ️

1.48 µg/L

10/10/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

1.42 µg/L

10/10/2018

7 years ago

Bishop Tap

Distribution System ℹ️

1.09 µg/L

10/10/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

1.07 µg/L

10/10/2018

7 years ago

Eden Tap

Distribution System ℹ️

12.1 µg/L

10/9/2018

7 years ago

Welle Tap

Distribution System ℹ️

9.92 µg/L

10/9/2018

7 years ago

Birch Tap

Distribution System ℹ️

9.52 µg/L

10/9/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

1.66 µg/L

10/9/2018

7 years ago

Gwin Tap

Distribution System ℹ️

1.55 µg/L

10/9/2018

7 years ago

Acorn Tap

Distribution System ℹ️

1.36 µg/L

10/9/2018

7 years ago

Skyline Tap

Distribution System ℹ️

0.9 µg/L

10/9/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

0.8 µg/L

10/9/2018

7 years ago

Valley View Tap

Distribution System ℹ️

0.47 µg/L

10/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

0.45 µg/L

10/9/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

0.94 µg/L

10/8/2018

7 years ago

Gwin Tap

Distribution System ℹ️

1.217 µg/L

7/11/2018

7 years ago

Berkeley View Tap

Distribution System ℹ️

1.157 µg/L

7/11/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

0.875 µg/L

7/11/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

0.871 µg/L

7/11/2018

7 years ago

Danville Tap

Distribution System ℹ️

0.86 µg/L

7/11/2018

7 years ago

Acorn Tap

Distribution System ℹ️

0.356 µg/L

7/11/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

1.189 µg/L

7/10/2018

7 years ago

Welle Tap

Distribution System ℹ️

8.379 µg/L

7/9/2018

7 years ago

Birch Tap

Distribution System ℹ️

6.613 µg/L

7/9/2018

7 years ago

Skyline Tap

Distribution System ℹ️

1.198 µg/L

7/9/2018

7 years ago

Eden Tap

Distribution System ℹ️

1.14 µg/L

7/9/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

1.108 µg/L

7/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

1.105 µg/L

7/9/2018

7 years ago

Valley View Tap

Distribution System ℹ️

0.427 µg/L

7/9/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

0.342 µg/L

7/9/2018

7 years ago

Bishop Tap

Distribution System ℹ️

0.336 µg/L

7/9/2018

7 years ago

Welle Tap

Distribution System ℹ️

4.66 µg/L

4/11/2018

7 years ago

Birch Tap

Distribution System ℹ️

3.08 µg/L

4/11/2018

7 years ago

Acorn Tap

Distribution System ℹ️

0.885 µg/L

4/11/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

0.571 µg/L

4/11/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

0.544 µg/L

4/11/2018

7 years ago

Danville Tap

Distribution System ℹ️

0.528 µg/L

4/11/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

0.928 µg/L

4/10/2018

7 years ago

Berkeley View Tap

Distribution System ℹ️

0.622 µg/L

4/10/2018

7 years ago

Skyline Tap

Distribution System ℹ️

0.609 µg/L

4/10/2018

7 years ago

Gwin Tap

Distribution System ℹ️

0.608 µg/L

4/10/2018

7 years ago

Eden Tap

Distribution System ℹ️

0.592 µg/L

4/10/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

0.564 µg/L

4/10/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

0.548 µg/L

4/10/2018

7 years ago

Valley View Tap

Distribution System ℹ️

0.636 µg/L

4/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

0.59 µg/L

4/9/2018

7 years ago

Bishop Tap

Distribution System ℹ️

0.543 µg/L

4/9/2018

7 years ago

Minimum Reporting Level: 0 µg/L
Reference Level: ?

Contaminant Details

HAA9 (nine haloacetic acids) (64)

Eden Tap

Distribution System ℹ️

32.8 µg/L

1/9/2019

6 years ago

Blackhawk Tap

Distribution System ℹ️

30.18 µg/L

1/9/2019

6 years ago

Skyline Tap

Distribution System ℹ️

29.04 µg/L

1/9/2019

6 years ago

Walnut Creek Tap 02

Distribution System ℹ️

26.63 µg/L

1/9/2019

6 years ago

Welle Tap

Distribution System ℹ️

48.25 µg/L

1/8/2019

6 years ago

Berkeley Tap #2

Distribution System ℹ️

25.24 µg/L

1/8/2019

6 years ago

Birch Tap

Distribution System ℹ️

51.57 µg/L

1/7/2019

6 years ago

Acorn Tap

Distribution System ℹ️

35.32 µg/L

1/7/2019

6 years ago

Bishop Tap

Distribution System ℹ️

33.22 µg/L

1/7/2019

6 years ago

Valley View Tap

Distribution System ℹ️

28.29 µg/L

1/7/2019

6 years ago

Walnut Creek Tap 03

Distribution System ℹ️

28.16 µg/L

1/7/2019

6 years ago

Danville Tap

Distribution System ℹ️

28.12 µg/L

1/7/2019

6 years ago

Berkeley View Tap

Distribution System ℹ️

27.3 µg/L

1/7/2019

6 years ago

Gwin Tap

Distribution System ℹ️

25.36 µg/L

1/7/2019

6 years ago

San Leandro Tap 02

Distribution System ℹ️

24.84 µg/L

1/7/2019

6 years ago

Montclair Tap

Distribution System ℹ️

24.47 µg/L

1/7/2019

6 years ago

Berkeley View Tap

Distribution System ℹ️

27.8 µg/L

11/28/2018

7 years ago

Bishop Tap

Distribution System ℹ️

40.49 µg/L

10/10/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

35.07 µg/L

10/10/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

34.42 µg/L

10/10/2018

7 years ago

Danville Tap

Distribution System ℹ️

33.48 µg/L

10/10/2018

7 years ago

Eden Tap

Distribution System ℹ️

67.7 µg/L

10/9/2018

7 years ago

Birch Tap

Distribution System ℹ️

64.92 µg/L

10/9/2018

7 years ago

Welle Tap

Distribution System ℹ️

63.52 µg/L

10/9/2018

7 years ago

Acorn Tap

Distribution System ℹ️

41.26 µg/L

10/9/2018

7 years ago

Gwin Tap

Distribution System ℹ️

40.55 µg/L

10/9/2018

7 years ago

Skyline Tap

Distribution System ℹ️

35.9 µg/L

10/9/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

35.66 µg/L

10/9/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

33.8 µg/L

10/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

31.55 µg/L

10/9/2018

7 years ago

Valley View Tap

Distribution System ℹ️

30.47 µg/L

10/9/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

31.94 µg/L

10/8/2018

7 years ago

Gwin Tap

Distribution System ℹ️

47.217 µg/L

7/11/2018

7 years ago

Berkeley View Tap

Distribution System ℹ️

44.157 µg/L

7/11/2018

7 years ago

Acorn Tap

Distribution System ℹ️

36.356 µg/L

7/11/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

33.471 µg/L

7/11/2018

7 years ago

Danville Tap

Distribution System ℹ️

33.36 µg/L

7/11/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

32.475 µg/L

7/11/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

39.589 µg/L

7/10/2018

7 years ago

Welle Tap

Distribution System ℹ️

66.379 µg/L

7/9/2018

7 years ago

Birch Tap

Distribution System ℹ️

58.023 µg/L

7/9/2018

7 years ago

Skyline Tap

Distribution System ℹ️

47.198 µg/L

7/9/2018

7 years ago

Eden Tap

Distribution System ℹ️

44.64 µg/L

7/9/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

42.608 µg/L

7/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

41.905 µg/L

7/9/2018

7 years ago

Valley View Tap

Distribution System ℹ️

37.127 µg/L

7/9/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

31.542 µg/L

7/9/2018

7 years ago

Bishop Tap

Distribution System ℹ️

29.436 µg/L

7/9/2018

7 years ago

Welle Tap

Distribution System ℹ️

50.06 µg/L

4/11/2018

7 years ago

Birch Tap

Distribution System ℹ️

42.88 µg/L

4/11/2018

7 years ago

Acorn Tap

Distribution System ℹ️

29.785 µg/L

4/11/2018

7 years ago

Walnut Creek Tap 02

Distribution System ℹ️

25.971 µg/L

4/11/2018

7 years ago

Blackhawk Tap

Distribution System ℹ️

25.944 µg/L

4/11/2018

7 years ago

Danville Tap

Distribution System ℹ️

24.628 µg/L

4/11/2018

7 years ago

Berkeley View Tap

Distribution System ℹ️

33.022 µg/L

4/10/2018

7 years ago

Skyline Tap

Distribution System ℹ️

32.609 µg/L

4/10/2018

7 years ago

Gwin Tap

Distribution System ℹ️

32.308 µg/L

4/10/2018

7 years ago

Eden Tap

Distribution System ℹ️

31.392 µg/L

4/10/2018

7 years ago

Berkeley Tap #2

Distribution System ℹ️

27.564 µg/L

4/10/2018

7 years ago

San Leandro Tap 02

Distribution System ℹ️

27.148 µg/L

4/10/2018

7 years ago

Walnut Creek Tap 03

Distribution System ℹ️

26.528 µg/L

4/10/2018

7 years ago

Valley View Tap

Distribution System ℹ️

34.236 µg/L

4/9/2018

7 years ago

Montclair Tap

Distribution System ℹ️

30.99 µg/L

4/9/2018

7 years ago

Bishop Tap

Distribution System ℹ️

29.443 µg/L

4/9/2018

7 years ago

Minimum Reporting Level: 0 µg/L
Reference Level: ?

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.005 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

linuron (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

lithium (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<9 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<9 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<9 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<9 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<9 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<9 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<9 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<9 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<9 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<9 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<9 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<9 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<9 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<9 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<9 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<9 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<9 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<9 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<9 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 9 µg/L
Reference Level: ?

Contaminant Details

Manganese (17)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

3.7 µg/L

Meets Reporting Threshold

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

0.99 µg/L

Meets Reporting Threshold

1/8/2019

6 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

11 µg/L

Meets Reporting Threshold

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

2 µg/L

Meets Reporting Threshold

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.4 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

12.7 µg/L

Meets Reporting Threshold

7/10/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.4 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.4 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.4 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.4 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.4 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.4 µg/L
Reference Level: 300 µg/L

Contaminant Details

methyl-tertiary-butyl-ether (MTBE) (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<5 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<5 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<5 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<5 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<5 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<5 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<5 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<5 µg/L

Below Reporting Level

2/4/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<5 µg/L

Below Reporting Level

11/27/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<5 µg/L

Below Reporting Level

11/26/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<5 µg/L

Below Reporting Level

11/26/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<5 µg/L

Below Reporting Level

11/26/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<5 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<5 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<5 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<5 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 5 µg/L
Reference Level: ?

Contaminant Details

molinate (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.9 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.9 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.9 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.9 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.9 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.9 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.9 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<0.9 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<0.9 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 0.9 µg/L
Reference Level: ?

Contaminant Details

molybdenum (38)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

1.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.2 µg/L

1/7/2015

10 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

1.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.1 µg/L

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<1 µg/L

Below Reporting Level

7/16/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/16/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<1 µg/L

Below Reporting Level

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

1.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.1 µg/L

4/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

2/25/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/8/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

1.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.2 µg/L

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

1.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.1 µg/L

10/9/2013

12 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (17)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

3/6/2024

21 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (17)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.006 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.006 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.006 µg/L

Below Reporting Level

3/6/2024

21 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.006 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.006 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.006 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.006 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.006 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.006 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.006 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.006 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.006 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.006 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.006 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.006 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.006 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.006 µg/L

Below Reporting Level

4/25/2023

2 years ago

Minimum Reporting Level: 0.006 µg/L
Reference Level: ?

Contaminant Details

nitrobenzene (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: ?

Contaminant Details

nitrobenzene (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<10 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<10 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<10 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<10 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<10 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<10 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<10 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<10 µg/L

Below Reporting Level

2/4/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<10 µg/L

Below Reporting Level

11/27/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<10 µg/L

Below Reporting Level

11/26/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<10 µg/L

Below Reporting Level

11/26/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<10 µg/L

Below Reporting Level

11/26/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<10 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<10 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<10 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<10 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 10 µg/L
Reference Level: ?

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.02 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.02 µg/L
Reference Level: ?

Contaminant Details

o-toluidine (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.007 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.007 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

8/22/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

8/8/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

6/13/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.007 µg/L
Reference Level: ?

Contaminant Details

oxyfluorfen (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.05 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.05 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.05 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.05 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.05 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.05 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.05 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.05 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.05 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.05 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.05 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.05 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.05 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.05 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.05 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.05 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.05 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.05 µg/L
Reference Level: 200 µg/L

Contaminant Details

perchlorate (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<4 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<4 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<4 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<4 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<4 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<4 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<4 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<4 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<4 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<4 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<4 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<4 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<4 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<4 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<4 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<4 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 4 µg/L
Reference Level: ?

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoro-3-methoxypropanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.004 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoro-4-methoxybutanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanesulfonic acid (38)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.09 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.09 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.09 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.09 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.09 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.09 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.09 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.09 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.005 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

0.0051 µg/L

⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0001 µg/L

10/24/2023

26 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

0.0052 µg/L

⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0002 µg/L

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.005 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.005 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.005 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

perfluorodecanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorododecanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanesulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanoic acid (38)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.01 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.01 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.01 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.01 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanesulfonic acid (38)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.03 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorononanoic acid (38)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.004 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/4/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanesulfonic acid (38)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.004 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/4/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.04 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.04 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.04 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanoic acid (38)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.004 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/4/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanesulfonic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.004 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.004 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.004 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.004 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.003 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.003 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.003 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.003 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorotetradecanoic acid (17)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.008 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.008 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.008 µg/L

Below Reporting Level

3/6/2024

21 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.008 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.008 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.008 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.008 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.008 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.008 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.008 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.008 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.008 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.008 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.008 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.008 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.008 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.008 µg/L

Below Reporting Level

4/25/2023

2 years ago

Minimum Reporting Level: 0.008 µg/L
Reference Level: ?

Contaminant Details

perfluorotridecanoic acid (17)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

3/6/2024

21 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.007 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.007 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.007 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.007 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.007 µg/L

Below Reporting Level

4/25/2023

2 years ago

Minimum Reporting Level: 0.007 µg/L
Reference Level: ?

Contaminant Details

perfluoroundecanoic acid (19)

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/9/2024

17 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/23/2024

20 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

1/23/2024

23 months ago

EP #13 - San Pablo WTP Treated Eff

San Pablo WTP ℹ️

<0.002 µg/L

Below Reporting Level

11/28/2023

25 months ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

10/24/2023

26 months ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

9/19/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

8/16/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

7/25/2023

2 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.002 µg/L

Below Reporting Level

6/13/2023

2 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.002 µg/L

Below Reporting Level

4/25/2023

2 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.002 µg/L

Below Reporting Level

4/4/2023

2 years ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

profenofos (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L

Contaminant Details

prometon (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: ?

Contaminant Details

quinoline (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

8/22/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.02 µg/L

Below Reporting Level

8/8/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.02 µg/L

Below Reporting Level

6/13/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.02 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.02 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.02 µg/L
Reference Level: 0.01 µg/L

Contaminant Details

s-ethyl-dipropylthiocarbamate (EPTC) (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<1 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<1 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<1 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<1 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

strontium (38)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

310 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 309.7 µg/L

1/7/2015

10 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

180 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 179.7 µg/L

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

250 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 249.7 µg/L

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

160 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 159.7 µg/L

10/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

250 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 249.7 µg/L

7/16/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

130 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 129.7 µg/L

7/16/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 139.7 µg/L

7/9/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 139.7 µg/L

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

110 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 109.7 µg/L

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

110 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 109.7 µg/L

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

100 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 99.7 µg/L

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

38 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 37.7 µg/L

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

37 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 36.7 µg/L

7/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

36 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 35.7 µg/L

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 139.7 µg/L

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

52 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 51.7 µg/L

4/29/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

320 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 319.7 µg/L

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

45 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 44.7 µg/L

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

44 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 43.7 µg/L

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

44 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 43.7 µg/L

4/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

44 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 43.7 µg/L

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

44 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 43.7 µg/L

4/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

41 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 40.7 µg/L

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

41 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 40.7 µg/L

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

42 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 41.7 µg/L

2/25/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

38 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 37.7 µg/L

2/25/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

33 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 32.7 µg/L

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

32 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 31.7 µg/L

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

32 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 31.7 µg/L

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

31 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 30.7 µg/L

1/8/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

190 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 189.7 µg/L

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

180 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 179.7 µg/L

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

40 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 39.7 µg/L

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

37 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 36.7 µg/L

10/9/2013

12 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

36 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 35.7 µg/L

10/9/2013

12 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

36 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 35.7 µg/L

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

35 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 34.7 µg/L

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

35 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 34.7 µg/L

10/9/2013

12 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

tebuconazole (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.2 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.2 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.2 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.2 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: 190 µg/L

Contaminant Details

terbacil (16)

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

5/13/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

5/9/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

5/7/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

5/6/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

2/6/2003

22 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

2/5/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

2/4/2003

22 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

2/4/2003

22 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

11/13/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

11/13/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

11/12/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

11/5/2002

23 years ago

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<2 µg/L

Below Reporting Level

8/8/2002

23 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<2 µg/L

Below Reporting Level

8/7/2002

23 years ago

UPPER SAN LEANDRO R D01/005-USL-R

UPPER SAN LEANDRO RES ℹ️

<2 µg/L

Below Reporting Level

8/7/2002

23 years ago

SAN PABLO RESERVOIR D01/005-SB-RA

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW ℹ️

<2 µg/L

Below Reporting Level

8/6/2002

23 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

terbufos (2)

BRIONES RES-RAW D01/005-BR-RA

BRIONES RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

PARDEE RES-RAW D01/005-PRD-R

PARDEE RES-RAW ℹ️

<0.5 µg/L

Below Reporting Level

6/26/2003

22 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: ?

Contaminant Details

testosterone (19)

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0001 µg/L

Below Reporting Level

11/18/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0001 µg/L

Below Reporting Level

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0001 µg/L

Below Reporting Level

10/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0001 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0001 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0001 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0001 µg/L

Below Reporting Level

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0001 µg/L

Below Reporting Level

4/29/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0001 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.0001 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0001 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0001 µg/L

Below Reporting Level

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0001 µg/L

Below Reporting Level

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0001 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0001 µg/L

Below Reporting Level

1/8/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.0001 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.0001 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.0001 µg/L

Below Reporting Level

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.0001 µg/L

Below Reporting Level

10/9/2013

12 years ago

Minimum Reporting Level: 0.0001 µg/L
Reference Level: ?

Contaminant Details

total microcystins (28)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

9/25/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

8/28/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

8/14/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/24/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

6/26/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.3 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.3 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.3 µg/L

Below Reporting Level

6/12/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.3 µg/L

Below Reporting Level

6/12/2018

7 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

Total Permethrin (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.04 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.04 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.04 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.04 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.04 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.04 µg/L
Reference Level: 3.344 µg/L

Contaminant Details

tribufos (17)

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.07 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

1/8/2019

6 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/30/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

10/9/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/10/2018

7 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

<0.07 µg/L

Below Reporting Level

5/15/2018

7 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

<0.07 µg/L

Below Reporting Level

5/1/2018

7 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

<0.07 µg/L

Below Reporting Level

4/10/2018

7 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

<0.07 µg/L

Below Reporting Level

4/10/2018

7 years ago

Minimum Reporting Level: 0.07 µg/L
Reference Level: 0.6 µg/L

Contaminant Details

vanadium (38)

Miller Tap - PZ C7A

Distribution System ℹ️

1.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.2 µg/L

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

1.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.1 µg/L

1/7/2015

10 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

2.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.2 µg/L

10/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.3 µg/L

10/9/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.3 µg/L

7/16/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

0.76 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.56 µg/L

7/16/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

1.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.9 µg/L

7/9/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

1.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.9 µg/L

7/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.38 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.18 µg/L

7/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.36 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.16 µg/L

7/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.35 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.15 µg/L

7/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.08 µg/L

7/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.25 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.05 µg/L

7/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.22 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.02 µg/L

7/9/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

0.88 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.68 µg/L

4/29/2014

11 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

0.37 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.17 µg/L

4/29/2014

11 years ago

EP #11 - Upper San Leandro WTP Treated Eff.

Upper San Leandro WTP ℹ️

1.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.9 µg/L

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.34 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.14 µg/L

4/9/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.33 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.13 µg/L

4/9/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.32 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.12 µg/L

4/9/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.31 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.11 µg/L

4/9/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.1 µg/L

4/9/2014

11 years ago

Miller Tap - PZ C7A

Distribution System ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.1 µg/L

4/9/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.27 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.07 µg/L

4/9/2014

11 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.33 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.13 µg/L

2/25/2014

11 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.31 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.11 µg/L

2/25/2014

11 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.29 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.09 µg/L

1/8/2014

11 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.08 µg/L

1/8/2014

11 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.08 µg/L

1/8/2014

11 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.08 µg/L

1/8/2014

11 years ago

EP #9 - Sobrante WTP Treated Eff.

Sobrante WTP ℹ️

1.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.7 µg/L

10/9/2013

12 years ago

Welle Tap - PZ A4G

Distribution System ℹ️

1.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.7 µg/L

10/9/2013

12 years ago

Blackhawk Tap - PZ F7E

Distribution System ℹ️

0.43 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.23 µg/L

10/9/2013

12 years ago

Skyline Tap - PZ B13A

Distribution System ℹ️

0.42 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.22 µg/L

10/9/2013

12 years ago

EP #12 - Walnut Creek WTP Treated Eff.

Walnut Creek WTP ℹ️

0.41 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.21 µg/L

10/9/2013

12 years ago

Valley View Tap - PZ D9C

Distribution System ℹ️

0.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.2 µg/L

10/9/2013

12 years ago

EP #5 - Orinda WTP Treated Eff.

Orinda TP ℹ️

0.39 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.19 µg/L

10/9/2013

12 years ago

EP #4 - Lafayette WTP Treated Eff.

Lafayette WTP ℹ️

0.39 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.19 µg/L

10/9/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Sampling Facilities

Walnut Creek WTP
Surface Water (SW)

EP #12 - Walnut Creek WTP Treated Eff.Entry Point to the Distribution System (EP)

Upper San Leandro WTP
Surface Water (SW)

EP #11 - Upper San Leandro WTP Treated Eff.Entry Point to the Distribution System (EP)

Sobrante WTP
Surface Water (SW)

EP #9 - Sobrante WTP Treated Eff.Entry Point to the Distribution System (EP)

Orinda TP
Surface Water (SW)

EP #5 - Orinda WTP Treated Eff.Entry Point to the Distribution System (EP)

Lafayette WTP
Surface Water (SW)

EP #4 - Lafayette WTP Treated Eff.Entry Point to the Distribution System (EP)

San Pablo WTP
Surface Water (SW)

EP #13 - San Pablo WTP Treated EffEntry Point to the Distribution System (EP)

Distribution System
Surface Water (SW)

Acorn TapDistribution System (DS)

Birch TapDistribution System (DS)

Bishop TapDistribution System (DS)

Berkeley View TapDistribution System (DS)

Blackhawk TapDistribution System (DS)

Berkeley Tap #2Distribution System (DS)

Danville TapDistribution System (DS)

Eden TapDistribution System (DS)

Gwin TapDistribution System (DS)

Montclair TapDistribution System (DS)

Skyline TapDistribution System (DS)

San Leandro Tap 02Distribution System (DS)

Valley View TapDistribution System (DS)

Walnut Creek Tap 02Distribution System (DS)

Walnut Creek Tap 03Distribution System (DS)

Welle TapDistribution System (DS)

Blackhawk Tap - PZ F7EMaximum Residence Time (MR)

Miller Tap - PZ C7AMaximum Residence Time (MR)

Welle Tap - PZ A4GMaximum Residence Time (MR)

Skyline Tap - PZ B13AMaximum Residence Time (MR)

Valley View Tap - PZ D9CMaximum Residence Time (MR)

BRIONES RES-RAW
Surface Water (SW)

BRIONES RES-RAW D01/005-BR-RASR (SR)

PARDEE RES-RAW
Surface Water (SW)

PARDEE RES-RAW D01/005-PRD-RSR (SR)

SAN PABLO RESERVOIR-SOBRANTE INTAKE-RAW
Surface Water (SW)

SAN PABLO RESERVOIR D01/005-SB-RASR (SR)

UPPER SAN LEANDRO RES
Surface Water (SW)

UPPER SAN LEANDRO R D01/005-USL-RSR (SR)

FAQ

Is East Bay MUD tap water safe to drink?

When was East Bay MUD last tested for water contamination?

The latest water samples were taken on July 9th, 2024.