City of Glendora Water Dept. (CA) Water Quality

City of Glendora Water Dept. is a large public water system in EPA region 9 that provides tap water for the 91740, 91741 zip codes. It has 22 facilities where the water supply was tested for 85 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 10.4 µg/L. The maximum reported level of Manganese was 0.86 µg/L. There were 2 contamintants found in the City of Glendora Water Dept. water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (12)
1,2,3-trichloropropane (12)
1,3-butadiene (12)
1,4-dioxane (12)
1-butanol (8)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (4)
17-alpha-ethynylestradiol (12)
17-beta-estradiol (12)
1H,1H,2H,2H-perfluorodecane sulfonic acid (4)
1H,1H,2H,2H-perfluorohexane sulfonic acid (4)
1H,1H,2H,2H-perfluorooctane sulfonic acid (4)
2,4-dinitrotoluene (9)
2,6-dinitrotoluene (9)
2-methoxyethanol (8)
2-propen-1-ol (Allyl Alcohol) (8)
4,4'-dichloro dichlorophenyl ethylene (DDE) (9)
4,8-dioxa-3H-perfluorononanoic acid (4)
4-androstene-3,17-dione (12)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (4)
alpha-hexachlorocyclohexane (8)
anatoxin-a (8)
bromochloromethane (Halon 1011) (12)
bromomethane (12)
Butylated Hydroxyanisole (8)
chlorate (16)
chlorodifluoromethane (HCFC-22) (12)
chloromethane (12)
chlorpyrifos (8)
chromium (16)
chromium-6 (16)
cobalt (16)
cylindrospermopsin (8)
dimethipin (8)
dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (9)
equilin (12)
estriol (12)
estrone (12)
ethoprop (8)
Germanium (8)
HAA5 (five regulated haloacetic acids) (32)
HAA6Br (six brominated haloacetic acids) (32)
HAA9 (nine haloacetic acids) (32)
hexafluoropropylene oxide dimer acid (GenX) (4)
lithium (4)
Manganese (8)
methyl-tertiary-butyl-ether (MTBE) (9)
molinate (9)
molybdenum (16)
N-ethyl perfluorooctanesulfonamidoacetic acid (4)
N-methyl perfluorooctanesulfonamidoacetic acid (4)
nitrobenzene (9)
nonafluoro-3,6-dioxaheptanoic acid (4)
o-toluidine (8)
oxyfluorfen (8)
perchlorate (9)
perfluoro(2-ethoxyethane)sulfonic acid (4)
perfluoro-3-methoxypropanoic acid (4)
perfluoro-4-methoxybutanoic acid (4)
perfluorobutanesulfonic acid (16)
perfluorobutanoic acid (4)
perfluorodecanoic acid (4)
perfluorododecanoic acid (4)
perfluoroheptanesulfonic acid (4)
perfluoroheptanoic acid (16)
perfluorohexanesulfonic acid (16)
perfluorohexanoic acid (4)
perfluorononanoic acid (16)
perfluorooctanesulfonic acid (16)
perfluorooctanoic acid (16)
perfluoropentanesulfonic acid (4)
perfluoropentanoic acid (4)
perfluorotetradecanoic acid (4)
perfluorotridecanoic acid (4)
perfluoroundecanoic acid (4)
profenofos (8)
quinoline (8)
s-ethyl-dipropylthiocarbamate (EPTC) (9)
strontium (16)
tebuconazole (8)
terbacil (9)
testosterone (12)
total microcystins (8)
Total Permethrin (8)
tribufos (8)
vanadium (16)

1,1-dichloroethane (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

1,2,3-trichloropropane (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

1,3-butadiene (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.1 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.1 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.1 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.1 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.1 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.1 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.1 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.1 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.1 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.1 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.1 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.1 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

1,4-dioxane (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.07 µg/L

Below Reporting Level

5/26/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

0.09 µg/L

⚠️ Exceeds Reporting Level of 0.07 µg/L by 0.02 µg/L

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.07 µg/L

⚠️ Exceeds Reporting Level of 0.07 µg/L by 0 µg/L

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.07 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.07 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.07 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.07 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.07 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.07 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

1-butanol (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<2 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<2 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<2 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<2 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<2 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<2 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<2 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<2 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

17-alpha-ethynylestradiol (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0009 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0009 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0009 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0009 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0009 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0009 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0009 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0009 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0009 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0009 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0009 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0009 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

17-beta-estradiol (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0004 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0004 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0004 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0004 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0004 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0004 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0004 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0004 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0004 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0004 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0004 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0004 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

2,4-dinitrotoluene (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

2,6-dinitrotoluene (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

2-methoxyethanol (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.4 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.4 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.4 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.4 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.4 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.4 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.4 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.4 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

2-propen-1-ol (Allyl Alcohol) (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.5 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.5 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.5 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.5 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.5 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.5 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.5 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.5 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

4,4'-dichloro dichlorophenyl ethylene (DDE) (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<0.8 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<0.8 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<0.8 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<0.8 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<0.8 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<0.8 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<0.8 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<0.8 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<0.8 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

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

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

4-androstene-3,17-dione (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0003 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0003 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0003 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0003 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0003 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0003 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0003 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0003 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0003 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0003 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0003 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0003 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

alpha-hexachlorocyclohexane (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.01 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.01 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.01 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.01 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

anatoxin-a (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/24/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

8/25/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

8/11/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

7/30/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

7/13/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

6/30/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

6/16/2021

4 years ago

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

Contaminant Details

bromochloromethane (Halon 1011) (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.06 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.06 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.06 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.06 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.06 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.06 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.06 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.06 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.06 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.06 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.06 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.06 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

bromomethane (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

Butylated Hydroxyanisole (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

chlorate (16)

231 W. Arrow Hwy.

CIC Intertie ℹ️

380 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 360 µg/L

5/26/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

62 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 42 µg/L

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

50 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 30 µg/L

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

230 µg/L

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

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

66 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 46 µg/L

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

57 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 37 µg/L

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

29 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 9 µg/L

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

22 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 2 µg/L

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

370 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 350 µg/L

11/18/2014

10 years ago

2624 Country Club Drive

Distribution System ℹ️

60 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 40 µg/L

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

24 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 4 µg/L

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

230 µg/L

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

8/26/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

150 µg/L

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

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

120 µg/L

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

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

89 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 69 µg/L

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

58 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 38 µg/L

8/26/2014

11 years ago

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

Contaminant Details

chlorodifluoromethane (HCFC-22) (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.08 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.08 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.08 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.08 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.08 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.08 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.08 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.08 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.08 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.08 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.08 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.08 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

chloromethane (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2014

11 years ago

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

Contaminant Details

chlorpyrifos (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

chromium (16)

231 W. Arrow Hwy.

CIC Intertie ℹ️

0.62 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.42 µg/L

5/26/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

0.25 µg/L

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

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.23 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.03 µg/L

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

0.45 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.25 µg/L

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

0.31 µg/L

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

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

0.28 µg/L

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

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

0.39 µg/L

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

11/18/2014

10 years ago

2624 Country Club Drive

Distribution System ℹ️

0.33 µg/L

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

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

0.63 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.43 µg/L

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

0.33 µg/L

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

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.2 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

chromium-6 (16)

231 W. Arrow Hwy.

CIC Intertie ℹ️

0.57 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.54 µg/L

5/26/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

0.29 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.26 µg/L

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.23 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.2 µg/L

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

0.38 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.35 µg/L

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.25 µg/L

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

0.25 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.22 µg/L

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.16 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.13 µg/L

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

0.13 µg/L

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

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

0.29 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.26 µg/L

11/18/2014

10 years ago

2624 Country Club Drive

Distribution System ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.25 µg/L

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.098 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.068 µg/L

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

0.56 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.53 µg/L

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

0.17 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.14 µg/L

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

0.083 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.053 µg/L

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.033 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.003 µg/L

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

cobalt (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<1 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<1 µg/L

Below Reporting Level

5/26/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

<1 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<1 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<1 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<1 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<1 µg/L

Below Reporting Level

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<1 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<1 µg/L

Below Reporting Level

11/18/2014

10 years ago

2624 Country Club Drive

Distribution System ℹ️

<1 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<1 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<1 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<1 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<1 µg/L

Below Reporting Level

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

<1 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

cylindrospermopsin (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

9/24/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

8/25/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

8/11/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

7/30/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

7/13/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

6/30/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

6/16/2021

4 years ago

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

Contaminant Details

dimethipin (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

equilin (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.004 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.004 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.004 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.004 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

estriol (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0008 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0008 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0008 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0008 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0008 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0008 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0008 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0008 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0008 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0008 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0008 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0008 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

estrone (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.002 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.002 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.002 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.002 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.002 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.002 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.002 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.002 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

ethoprop (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

Germanium (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.3 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.3 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.3 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.3 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

HAA5 (five regulated haloacetic acids) (32)

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

5.85 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

5.72 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.84 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

4.48 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

3.9 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

3.43 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

2.92 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

Meets Reporting Threshold

10/25/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

10.4 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

8.36 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

6.23 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

6.04 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

4.31 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

3.99 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

2.2 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

10.14 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

7.13 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

6.08 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

5.7 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

4.64 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.13 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

2.98 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

Meets Reporting Threshold

4/18/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

9.61 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

9.16 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

7.38 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

6.69 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

6.61 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

5.77 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

3 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

1.2 µg/L

Meets Reporting Threshold

1/17/2019

6 years ago

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

Contaminant Details

HAA6Br (six brominated haloacetic acids) (32)

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

11.22 µg/L

10/25/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

9.63 µg/L

10/25/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

9.02 µg/L

10/25/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

8.94 µg/L

10/25/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

7.01 µg/L

10/25/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

5.2 µg/L

10/25/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.42 µg/L

10/25/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

10/25/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

12.05 µg/L

7/16/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

11.3 µg/L

7/16/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

10.55 µg/L

7/16/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

10.29 µg/L

7/16/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

8.15 µg/L

7/16/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

5.57 µg/L

7/16/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

3.52 µg/L

7/16/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

7/16/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

14 µg/L

4/18/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

12.66 µg/L

4/18/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

12.4 µg/L

4/18/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

11.28 µg/L

4/18/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

7.58 µg/L

4/18/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

7.03 µg/L

4/18/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.67 µg/L

4/18/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

4/18/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

17.57 µg/L

1/17/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

17.22 µg/L

1/17/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

13.24 µg/L

1/17/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

13.16 µg/L

1/17/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

12.38 µg/L

1/17/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

11.05 µg/L

1/17/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.71 µg/L

1/17/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

2.33 µg/L

1/17/2019

6 years ago

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

Contaminant Details

HAA9 (nine haloacetic acids) (32)

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

11.76 µg/L

10/25/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

10.07 µg/L

10/25/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

9.68 µg/L

10/25/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

9.42 µg/L

10/25/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

7.01 µg/L

10/25/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

5.53 µg/L

10/25/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.74 µg/L

10/25/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

10/25/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

12.6 µg/L

7/16/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

12.34 µg/L

7/16/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

10.84 µg/L

7/16/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

10.75 µg/L

7/16/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

8.39 µg/L

7/16/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

5.8 µg/L

7/16/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

3.52 µg/L

7/16/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

7/16/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

14.63 µg/L

4/18/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

13.6 µg/L

4/18/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

12.8 µg/L

4/18/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

11.65 µg/L

4/18/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

7.97 µg/L

4/18/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

7.26 µg/L

4/18/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.67 µg/L

4/18/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

0 µg/L

4/18/2019

6 years ago

825 E. Arrow Hwy - STG 2 DBP

Distribution System - DBP ℹ️

18.21 µg/L

1/17/2019

6 years ago

453 W. Kirkwall Rd - STG 2 DBP

Distribution System - DBP ℹ️

17.86 µg/L

1/17/2019

6 years ago

2624 Country Club Dr - STG 2 DBP

Distribution System - DBP ℹ️

13.89 µg/L

1/17/2019

6 years ago

142 Ronwood St - STG 2 DBP

Distribution System - DBP ℹ️

13.68 µg/L

1/17/2019

6 years ago

1425 S. Jennifer Ave - STG 2 DBP

Distribution System - DBP ℹ️

12.71 µg/L

1/17/2019

6 years ago

1335 S. Prospero Dr - STG 2 DBP

Distribution System - DBP ℹ️

11.37 µg/L

1/17/2019

6 years ago

427 W. Northridge Ave - STG 2 DBP

Distribution System - DBP ℹ️

4.71 µg/L

1/17/2019

6 years ago

2244 E. Route 66 - STG 2 DBP

Distribution System - DBP ℹ️

2.33 µg/L

1/17/2019

6 years ago

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

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

lithium (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<9 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<9 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<9 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<9 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

Manganese (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.4 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.74 µg/L

Meets Reporting Threshold

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.4 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.46 µg/L

Meets Reporting Threshold

5/28/2021

4 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

0.86 µg/L

Meets Reporting Threshold

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.4 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.4 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.4 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

methyl-tertiary-butyl-ether (MTBE) (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<5 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<5 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<5 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<5 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<5 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<5 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<5 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<5 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<5 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

molinate (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<0.9 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<0.9 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<0.9 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<0.9 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<0.9 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<0.9 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<0.9 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<0.9 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<0.9 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

molybdenum (16)

231 W. Arrow Hwy.

CIC Intertie ℹ️

5.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 4.7 µg/L

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

2.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.2 µg/L

5/26/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

2.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.2 µg/L

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

5.3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 4.3 µg/L

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

2.3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.3 µg/L

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

2 µg/L

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

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

1.8 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.8 µg/L

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

1.8 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.8 µg/L

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

5.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 4.1 µg/L

11/18/2014

10 years ago

2624 Country Club Drive

Distribution System ℹ️

2.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.1 µg/L

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

2 µg/L

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

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

4.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 3.1 µg/L

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

3.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.7 µg/L

8/26/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

3.3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.3 µg/L

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

2.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.7 µg/L

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

1.8 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.8 µg/L

8/26/2014

11 years ago

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

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.006 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.006 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.006 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.006 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

nitrobenzene (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<10 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<10 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<10 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<10 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<10 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<10 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<10 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<10 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<10 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

o-toluidine (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.007 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.007 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.007 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.007 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.007 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.007 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.007 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.007 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

oxyfluorfen (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.05 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.05 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.05 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.05 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.05 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.05 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.05 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.05 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

perchlorate (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<4 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<4 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<4 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<4 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<4 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<4 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<4 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<4 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<4 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluoro-3-methoxypropanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluoro-4-methoxybutanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluorobutanesulfonic acid (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.09 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.09 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.09 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.09 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.09 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.09 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.09 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.09 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.09 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

perfluorobutanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluorodecanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluorododecanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluoroheptanesulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluoroheptanoic acid (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.01 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.01 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.01 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.01 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.01 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.01 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.01 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.01 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.01 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

perfluorohexanesulfonic acid (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.03 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.03 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.03 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.03 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

perfluorohexanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluorononanoic acid (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

perfluorooctanesulfonic acid (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.04 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.04 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.04 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.04 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.04 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.04 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.04 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.04 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

perfluorooctanoic acid (16)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.02 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

perfluoropentanesulfonic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluoropentanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluorotetradecanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.008 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.008 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.008 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.008 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluorotridecanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.007 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.007 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.007 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.007 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

perfluoroundecanoic acid (4)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

9/16/2024

13 months ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

16 months ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

16 months ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

16 months ago

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

Contaminant Details

profenofos (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.3 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.3 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.3 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.3 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

quinoline (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.02 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.02 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.02 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

s-ethyl-dipropylthiocarbamate (EPTC) (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<1 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<1 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

strontium (16)

2624 Country Club Drive

Distribution System ℹ️

440 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 439.7 µg/L

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

400 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 399.7 µg/L

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

360 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 359.7 µg/L

5/26/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

490 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 489.7 µg/L

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

460 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 459.7 µg/L

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

430 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 429.7 µg/L

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

420 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 419.7 µg/L

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

370 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 369.7 µg/L

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

470 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 469.7 µg/L

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

430 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 429.7 µg/L

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

380 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 379.7 µg/L

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

1000 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 999.7 µg/L

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

950 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 949.7 µg/L

8/26/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

810 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 809.7 µg/L

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

470 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 469.7 µg/L

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

450 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 449.7 µg/L

8/26/2014

11 years ago

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

Contaminant Details

tebuconazole (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.2 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.2 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.2 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

terbacil (9)

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<2 µg/L

Below Reporting Level

6/18/2003

22 years ago

HIDDEN SPRINGS BOOSTERS

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

SIERRA MADRE BLVD

SIERRA MADRE BLVE - NO3 MONITORING ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

FOOTHILL BLVD NO3 BLENDING

NITRATE BLENDING SAMP SITE-FOOTHILL BLV ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

GLENDORA AVE NO3 BLENDING

NITRATE BLENDING SAMP SITE-GLENDORA AVE ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

702 BROWN SAGE

NITRATE BLENDING SITE - 702 BROWNSAGE ℹ️

<2 µg/L

Below Reporting Level

12/18/2002

22 years ago

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

Contaminant Details

testosterone (12)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0001 µg/L

Below Reporting Level

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0001 µg/L

Below Reporting Level

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

0.00024 µg/L

⚠️ Exceeds Reporting Level of 0.0001 µg/L by 0.00014 µg/L

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0001 µg/L

Below Reporting Level

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0001 µg/L

Below Reporting Level

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0001 µg/L

Below Reporting Level

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0001 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0001 µg/L

Below Reporting Level

11/18/2014

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

<0.0001 µg/L

Below Reporting Level

10/9/2014

11 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.0001 µg/L

Below Reporting Level

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.0001 µg/L

Below Reporting Level

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.0001 µg/L

Below Reporting Level

8/26/2014

11 years ago

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

Contaminant Details

total microcystins (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

9/24/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

8/25/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

8/11/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

7/30/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

7/13/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

6/30/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.3 µg/L

Below Reporting Level

6/16/2021

4 years ago

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

Contaminant Details

Total Permethrin (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.04 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.04 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.04 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.04 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.04 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

tribufos (8)

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

12/1/2021

3 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

9/9/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

6/16/2021

4 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

<0.07 µg/L

Below Reporting Level

5/28/2021

4 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.07 µg/L

Below Reporting Level

7/16/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.07 µg/L

Below Reporting Level

7/16/2019

6 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

<0.07 µg/L

Below Reporting Level

1/17/2019

6 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

<0.07 µg/L

Below Reporting Level

1/17/2019

6 years ago

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

Contaminant Details

vanadium (16)

231 W. Arrow Hwy.

CIC Intertie ℹ️

6.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.9 µg/L

5/26/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

1.6 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.4 µg/L

5/26/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

1.2 µg/L

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

5/26/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.8 µg/L

2/20/2015

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

2 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.8 µg/L

2/20/2015

10 years ago

2624 Country Club Drive

Distribution System ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.5 µg/L

2/20/2015

10 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

1.2 µg/L

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

2/20/2015

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

1.2 µg/L

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

2/20/2015

10 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

5.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.1 µg/L

11/18/2014

10 years ago

2624 Country Club Drive

Distribution System ℹ️

2.4 µg/L

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

11/18/2014

10 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

1.4 µg/L

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

11/18/2014

10 years ago

Sierra Madre Reservoir Effluent

Sierra Madre Reservoir (Wells 2, 10, 11 & 13) ℹ️

4.2 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4 µg/L

8/26/2014

11 years ago

2624 Country Club Drive

Distribution System ℹ️

3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.8 µg/L

8/26/2014

11 years ago

510 N. Wabash

MWD Intertie (PM-23) ℹ️

2.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.6 µg/L

8/26/2014

11 years ago

231 W. Arrow Hwy.

CIC Intertie ℹ️

1.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.6 µg/L

8/26/2014

11 years ago

San Gabriel Reservoir Effluent

San Gabriel Reservoir (Wells 5, 8, 9 & 12) ℹ️

1.3 µg/L

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

8/26/2014

11 years ago

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

Contaminant Details

Sampling Facilities

Sierra Madre Reservoir (Wells 2, 10, 11 & 13)
Ground Water (GW)

Sierra Madre Reservoir EffluentEntry Point to the Distribution System (EP)

San Gabriel Reservoir (Wells 5, 8, 9 & 12)
Ground Water (GW)

San Gabriel Reservoir EffluentEntry Point to the Distribution System (EP)

MWD Intertie (PM-23)
Surface Water (SW)

510 N. WabashEntry Point to the Distribution System (EP)

Distribution System - DBP
Multiple Sources (MX)

825 E. Arrow Hwy - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

2244 E. Route 66 - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

2624 Country Club Dr - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

1425 S. Jennifer Ave - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

453 W. Kirkwall Rd - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

142 Ronwood St - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

1335 S. Prospero Dr - STG 2 DBPDistribution System (DS)

Distribution System - DBP
Multiple Sources (MX)

427 W. Northridge Ave - STG 2 DBPDistribution System (DS)

CIC Intertie
Surface Water (SW)

231 W. Arrow Hwy.Entry Point to the Distribution System (EP)

Distribution System
Multiple Sources (MX)

2624 Country Club DriveMaximum Residence Time (MR)

EP- #014 NITRATE BLENDING SAMP SITE-GLENDORA AVE
Ground Water (GW)

Nitrate Blend Sampling PointEntry Point to the Distribution System (EP)

EP- #013 NITRATE BLENDING SAMP SITE-FOOTHILL BLV
Ground Water (GW)

Nitrate Blend Sampling PointEntry Point to the Distribution System (EP)

EP- #012 SIERRA MADRE BLVE - NO3 MONITORING
Ground Water (GW)

Nitrate Blend Sampling PointEntry Point to the Distribution System (EP)

EP- #019 NITRATE BLENDING SITE-702 BROWNSAGE-TRTD
Ground Water (GW)

Nitrate Blend Sampling PointEntry Point to the Distribution System (EP)

HIDDEN SPRING BOOSERS(?)- NO3 MONITORING
Ground Water (GW)

HIDDEN SPRINGS BOOSTERSEntry Point to the Distribution System (EP)

SIERRA MADRE BLVE - NO3 MONITORING
Ground Water (GW)

SIERRA MADRE BLVDEntry Point to the Distribution System (EP)

NITRATE BLENDING SAMP SITE-FOOTHILL BLV
Ground Water (GW)

FOOTHILL BLVD NO3 BLENDINGEntry Point to the Distribution System (EP)

NITRATE BLENDING SAMP SITE-GLENDORA AVE
Ground Water (GW)

GLENDORA AVE NO3 BLENDINGEntry Point to the Distribution System (EP)

NITRATE BLENDING SITE - 702 BROWNSAGE
Ground Water (GW)

702 BROWN SAGEEntry Point to the Distribution System (EP)

FAQ

Is City of Glendora Water Dept. tap water safe to drink?

When was City of Glendora Water Dept. last tested for water contamination?

The latest water samples were taken on September 16th, 2024.