Sunnyslope County Water District (CA) Water Quality

Sunnyslope County Water District is a large public water system in EPA region 9 that provides tap water for the 95023 zip codes. It has 16 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.

The maximum reported level of 1-butanol was 2 µg/L. The maximum reported level of HAA5 (five regulated haloacetic acids) was 49.77 µg/L. The maximum reported level of Manganese was 7.9 µg/L. There were 3 contamintants found in the Sunnyslope County Water District water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (14)
1,2,3-trichloropropane (14)
1,3-butadiene (14)
1,4-dioxane (14)
1-butanol (18)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (7)
1H,1H,2H,2H-perfluorodecane sulfonic acid (7)
1H,1H,2H,2H-perfluorohexane sulfonic acid (7)
1H,1H,2H,2H-perfluorooctane sulfonic acid (7)
2,4-dinitrotoluene (12)
2,6-dinitrotoluene (12)
2-methoxyethanol (18)
2-propen-1-ol (Allyl Alcohol) (18)
4,4'-dichloro dichlorophenyl ethylene (DDE) (12)
4,8-dioxa-3H-perfluorononanoic acid (7)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (7)
alpha-hexachlorocyclohexane (18)
anatoxin-a (16)
bromochloromethane (Halon 1011) (14)
bromomethane (14)
Butylated Hydroxyanisole (18)
chlorate (22)
chlorodifluoromethane (HCFC-22) (14)
chloromethane (14)
chlorpyrifos (18)
chromium (22)
chromium-6 (22)
cobalt (22)
cylindrospermopsin (16)
dimethipin (18)
dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (11)
ethoprop (18)
Germanium (18)
HAA5 (five regulated haloacetic acids) (16)
HAA6Br (six brominated haloacetic acids) (16)
HAA9 (nine haloacetic acids) (16)
hexafluoropropylene oxide dimer acid (GenX) (7)
lithium (7)
Manganese (18)
methyl-tertiary-butyl-ether (MTBE) (11)
molinate (12)
molybdenum (22)
N-ethyl perfluorooctanesulfonamidoacetic acid (7)
N-methyl perfluorooctanesulfonamidoacetic acid (7)
nitrobenzene (11)
nonafluoro-3,6-dioxaheptanoic acid (7)
o-toluidine (18)
oxyfluorfen (18)
perchlorate (11)
perfluoro(2-ethoxyethane)sulfonic acid (7)
perfluoro-3-methoxypropanoic acid (7)
perfluoro-4-methoxybutanoic acid (7)
perfluorobutanesulfonic acid (21)
perfluorobutanoic acid (7)
perfluorodecanoic acid (7)
perfluorododecanoic acid (7)
perfluoroheptanesulfonic acid (7)
perfluoroheptanoic acid (21)
perfluorohexanesulfonic acid (21)
perfluorohexanoic acid (7)
perfluorononanoic acid (21)
perfluorooctanesulfonic acid (21)
perfluorooctanoic acid (21)
perfluoropentanesulfonic acid (7)
perfluoropentanoic acid (7)
perfluorotetradecanoic acid (7)
perfluorotridecanoic acid (7)
perfluoroundecanoic acid (7)
profenofos (18)
quinoline (18)
s-ethyl-dipropylthiocarbamate (EPTC) (12)
strontium (22)
tebuconazole (18)
terbacil (12)
total microcystins (14)
Total Permethrin (18)
tribufos (18)
vanadium (22)

1,1-dichloroethane (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

1,2,3-trichloropropane (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

1,3-butadiene (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.1 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.1 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.1 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

1,4-dioxane (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.07 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.07 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.07 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.07 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.07 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.07 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.07 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.07 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.07 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.07 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

1-butanol (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<2 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<2 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

2 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<2 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<2 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

2,4-dinitrotoluene (12)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<2 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<2 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

2,6-dinitrotoluene (12)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<2 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<2 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

2-methoxyethanol (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.4 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.4 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.4 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.4 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

2-propen-1-ol (Allyl Alcohol) (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.5 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.5 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.5 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.5 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.5 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

4,4'-dichloro dichlorophenyl ethylene (DDE) (12)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<0.8 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<0.8 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<0.8 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<0.8 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<0.8 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<0.8 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<0.8 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<0.8 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<0.8 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<0.8 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<0.8 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<0.8 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

4,8-dioxa-3H-perfluorononanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

alpha-hexachlorocyclohexane (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.01 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.01 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.01 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

anatoxin-a (16)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/17/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/17/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/3/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/3/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

7/20/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

7/20/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

7/9/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/22/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/22/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/10/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/10/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/18/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/18/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/4/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/4/2020

5 years ago

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

Contaminant Details

bromochloromethane (Halon 1011) (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.06 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.06 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.06 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.06 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.06 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.06 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.06 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.06 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.06 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.06 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.06 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.06 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.06 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.06 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

bromomethane (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

Butylated Hydroxyanisole (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

chlorate (22)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

390 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 370 µg/L

5/6/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

380 µg/L

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

5/6/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

290 µg/L

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

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

290 µg/L

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

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

210 µg/L

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

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

110 µg/L

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

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

68 µg/L

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

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

67 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 47 µg/L

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

56 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 36 µg/L

2/4/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

30 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 10 µg/L

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

29 µg/L

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

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

980 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 960 µg/L

11/5/2013

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

160 µg/L

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

11/5/2013

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

350 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 330 µg/L

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

310 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 290 µg/L

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

260 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 240 µg/L

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

82 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 62 µg/L

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

75 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 55 µg/L

8/6/2013

12 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

66 µg/L

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

8/6/2013

12 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

64 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 44 µg/L

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

60 µg/L

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

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

43 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 23 µg/L

8/6/2013

12 years ago

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

Contaminant Details

chlorodifluoromethane (HCFC-22) (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.08 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.08 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.08 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.08 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.08 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.08 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.08 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.08 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.08 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.08 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.08 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.08 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.08 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.08 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

chloromethane (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

chlorpyrifos (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

chromium (22)

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

0.37 µg/L

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

5/6/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.23 µg/L

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

5/6/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

15 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 14.8 µg/L

2/4/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

11 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 10.8 µg/L

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

10 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 9.8 µg/L

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

9.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 9.7 µg/L

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

9.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 9.1 µg/L

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

4.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.9 µg/L

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

3.2 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

0.27 µg/L

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

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.25 µg/L

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

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

12 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 11.8 µg/L

11/5/2013

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

10 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 9.8 µg/L

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

9.7 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 9.5 µg/L

8/6/2013

12 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

9.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 8.9 µg/L

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

8.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 8.7 µg/L

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 7.8 µg/L

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

3.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.7 µg/L

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

2.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.3 µg/L

8/6/2013

12 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

0.23 µg/L

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

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.21 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.01 µg/L

8/6/2013

12 years ago

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

Contaminant Details

chromium-6 (22)

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

0.21 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.18 µg/L

5/6/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.062 µg/L

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

5/6/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

12 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 11.97 µg/L

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

11 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 10.97 µg/L

2/4/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

8.8 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 8.77 µg/L

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

7.9 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 7.87 µg/L

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

7.4 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 7.37 µg/L

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

3.3 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 3.27 µg/L

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

3.1 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 3.07 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

0.13 µg/L

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

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.1 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.07 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

14 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 13.97 µg/L

11/5/2013

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.066 µg/L

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

11/5/2013

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

8.9 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 8.87 µg/L

8/6/2013

12 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

8.8 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 8.77 µg/L

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

7.8 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 7.77 µg/L

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

7.1 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 7.07 µg/L

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

6.9 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 6.87 µg/L

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

3.3 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 3.27 µg/L

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

2.2 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 2.17 µg/L

8/6/2013

12 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

0.086 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.056 µg/L

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.054 µg/L

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

8/6/2013

12 years ago

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

Contaminant Details

cobalt (22)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<1 µg/L

Below Reporting Level

5/6/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

<1 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

<1 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<1 µg/L

Below Reporting Level

11/5/2013

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

<1 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

<1 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

cylindrospermopsin (16)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

8/17/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

8/17/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

8/3/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

8/3/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

7/20/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

7/20/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

7/9/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

7/9/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

6/22/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

6/22/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

6/10/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

6/10/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

5/18/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

5/18/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

5/4/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.09 µg/L

Below Reporting Level

5/4/2020

5 years ago

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

Contaminant Details

dimethipin (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (11)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<1 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<1 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

ethoprop (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.03 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

Germanium (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 0 µg/L

6/5/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

HAA5 (five regulated haloacetic acids) (16)

911 Leslie

Distribution System ℹ️

4.25 µg/L

Meets Reporting Threshold

3/7/2019

6 years ago

830 Clearview

Distribution System ℹ️

7.85 µg/L

Meets Reporting Threshold

3/4/2019

6 years ago

30 Mansfield

Distribution System ℹ️

4.36 µg/L

Meets Reporting Threshold

3/4/2019

6 years ago

901 Santa Ana

Distribution System ℹ️

4.32 µg/L

Meets Reporting Threshold

3/4/2019

6 years ago

901 Santa Ana

Distribution System ℹ️

49.77 µg/L

❗ Exceeds 80% of Reference Level

12/3/2018

6 years ago

830 Clearview

Distribution System ℹ️

45.9 µg/L

⚠️ Exceeds 50% of Reference Level

12/3/2018

6 years ago

911 Leslie

Distribution System ℹ️

31.99 µg/L

⚠️ Exceeds 50% of Reference Level

12/3/2018

6 years ago

30 Mansfield

Distribution System ℹ️

31 µg/L

⚠️ Exceeds 50% of Reference Level

12/3/2018

6 years ago

901 Santa Ana

Distribution System ℹ️

7.74 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

30 Mansfield

Distribution System ℹ️

6.03 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

830 Clearview

Distribution System ℹ️

4.93 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

911 Leslie

Distribution System ℹ️

2.77 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

30 Mansfield

Distribution System ℹ️

6.28 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

901 Santa Ana

Distribution System ℹ️

5 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

830 Clearview

Distribution System ℹ️

3.95 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

911 Leslie

Distribution System ℹ️

3.84 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

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

Contaminant Details

HAA6Br (six brominated haloacetic acids) (16)

911 Leslie

Distribution System ℹ️

11.67 µg/L

3/7/2019

6 years ago

830 Clearview

Distribution System ℹ️

16.69 µg/L

3/4/2019

6 years ago

901 Santa Ana

Distribution System ℹ️

12.32 µg/L

3/4/2019

6 years ago

30 Mansfield

Distribution System ℹ️

11.64 µg/L

3/4/2019

6 years ago

901 Santa Ana

Distribution System ℹ️

60.33 µg/L

12/3/2018

6 years ago

830 Clearview

Distribution System ℹ️

53.93 µg/L

12/3/2018

6 years ago

911 Leslie

Distribution System ℹ️

39.03 µg/L

12/3/2018

6 years ago

30 Mansfield

Distribution System ℹ️

38.34 µg/L

12/3/2018

6 years ago

901 Santa Ana

Distribution System ℹ️

16.45 µg/L

9/4/2018

7 years ago

30 Mansfield

Distribution System ℹ️

12.84 µg/L

9/4/2018

7 years ago

830 Clearview

Distribution System ℹ️

8.65 µg/L

9/4/2018

7 years ago

911 Leslie

Distribution System ℹ️

4.27 µg/L

9/4/2018

7 years ago

30 Mansfield

Distribution System ℹ️

17.77 µg/L

6/5/2018

7 years ago

901 Santa Ana

Distribution System ℹ️

16.37 µg/L

6/5/2018

7 years ago

830 Clearview

Distribution System ℹ️

12.47 µg/L

6/5/2018

7 years ago

911 Leslie

Distribution System ℹ️

11.24 µg/L

6/5/2018

7 years ago

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

Contaminant Details

HAA9 (nine haloacetic acids) (16)

911 Leslie

Distribution System ℹ️

11.95 µg/L

3/7/2019

6 years ago

830 Clearview

Distribution System ℹ️

17.38 µg/L

3/4/2019

6 years ago

901 Santa Ana

Distribution System ℹ️

12.67 µg/L

3/4/2019

6 years ago

30 Mansfield

Distribution System ℹ️

11.92 µg/L

3/4/2019

6 years ago

901 Santa Ana

Distribution System ℹ️

61.17 µg/L

12/3/2018

6 years ago

830 Clearview

Distribution System ℹ️

54.93 µg/L

12/3/2018

6 years ago

911 Leslie

Distribution System ℹ️

39.44 µg/L

12/3/2018

6 years ago

30 Mansfield

Distribution System ℹ️

38.8 µg/L

12/3/2018

6 years ago

901 Santa Ana

Distribution System ℹ️

17.24 µg/L

9/4/2018

7 years ago

30 Mansfield

Distribution System ℹ️

13.47 µg/L

9/4/2018

7 years ago

830 Clearview

Distribution System ℹ️

9.19 µg/L

9/4/2018

7 years ago

911 Leslie

Distribution System ℹ️

4.53 µg/L

9/4/2018

7 years ago

30 Mansfield

Distribution System ℹ️

18.58 µg/L

6/5/2018

7 years ago

901 Santa Ana

Distribution System ℹ️

16.9 µg/L

6/5/2018

7 years ago

830 Clearview

Distribution System ℹ️

12.85 µg/L

6/5/2018

7 years ago

911 Leslie

Distribution System ℹ️

11.63 µg/L

6/5/2018

7 years ago

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

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

lithium (7)

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

23.5 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 14.5 µg/L

5/13/2025

4 months ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

21.5 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 12.5 µg/L

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

20.5 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 11.5 µg/L

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

19.2 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 10.2 µg/L

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

16.9 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 7.9 µg/L

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<9 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<9 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

Manganese (18)

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

0.75 µg/L

Meets Reporting Threshold

3/4/2019

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.66 µg/L

Meets Reporting Threshold

3/4/2019

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

7.9 µg/L

Meets Reporting Threshold

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

2.7 µg/L

Meets Reporting Threshold

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

2 µg/L

Meets Reporting Threshold

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

0.6 µg/L

Meets Reporting Threshold

12/3/2018

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

2 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

0.59 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

6 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

4.6 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

3.2 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

0.65 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

0.45 µg/L

Meets Reporting Threshold

6/5/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.4 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

methyl-tertiary-butyl-ether (MTBE) (11)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<5 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<5 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<5 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<5 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<5 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<5 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<5 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<5 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<5 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<5 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<5 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

molinate (12)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<0.9 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<0.9 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<0.9 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<0.9 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<0.9 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<0.9 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<0.9 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<0.9 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<0.9 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<0.9 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<0.9 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<0.9 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

molybdenum (22)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

2.1 µg/L

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

5/6/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

2 µg/L

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

5/6/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

3.8 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.8 µg/L

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2 µg/L

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

2.2 µg/L

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

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

2 µg/L

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

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

2 µg/L

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

2/4/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

1.9 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.9 µg/L

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.7 µg/L

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.5 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.5 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

3.5 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.5 µg/L

11/5/2013

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

1.4 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.4 µg/L

11/5/2013

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

3.3 µg/L

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

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

2.9 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.9 µg/L

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

2.7 µg/L

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

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

2.1 µg/L

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

8/6/2013

12 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

1.8 µg/L

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

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

1.8 µg/L

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

8/6/2013

12 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

1.6 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.6 µg/L

8/6/2013

12 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

1.6 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.6 µg/L

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.5 µg/L

8/6/2013

12 years ago

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

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.006 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

nitrobenzene (11)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<10 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<10 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<10 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<10 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<10 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<10 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<10 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<10 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<10 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<10 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<10 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.02 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

o-toluidine (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.007 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.007 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.007 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.007 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.007 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

oxyfluorfen (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.05 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.05 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.05 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.05 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.05 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

perchlorate (11)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<4 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<4 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<4 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<4 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<4 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<4 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<4 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<4 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<4 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<4 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<4 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluoro-3-methoxypropanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluoro-4-methoxybutanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluorobutanesulfonic acid (21)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.09 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.09 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.09 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.09 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.09 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.09 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.09 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.09 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.09 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.09 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.09 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

perfluorobutanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.005 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluorodecanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluorododecanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluoroheptanesulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluoroheptanoic acid (21)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.01 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.01 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.01 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.01 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.01 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.01 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.01 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.01 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.01 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.01 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.01 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

perfluorohexanesulfonic acid (21)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.03 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

perfluorohexanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluorononanoic acid (21)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

perfluorooctanesulfonic acid (21)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.04 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.04 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.04 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.04 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.04 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.04 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.04 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.04 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.04 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.04 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

perfluorooctanoic acid (21)

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

0.0046 µg/L

⚠️ Exceeds Reporting Level of 0.004 µg/L by 0.0006 µg/L

5/13/2025

4 months ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

5/6/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

8/6/2013

12 years ago

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

Contaminant Details

perfluoropentanesulfonic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.004 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluoropentanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.003 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluorotetradecanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.008 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluorotridecanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.007 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

perfluoroundecanoic acid (7)

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.002 µg/L

Below Reporting Level

5/13/2025

4 months ago

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

Contaminant Details

profenofos (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

quinoline (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.02 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.02 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.02 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

s-ethyl-dipropylthiocarbamate (EPTC) (12)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<1 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<1 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<1 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<1 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

strontium (22)

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

270 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 269.7 µg/L

5/6/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

260 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 259.7 µg/L

5/6/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

1400 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1399.7 µg/L

2/4/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

1300 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1299.7 µg/L

2/4/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

1300 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1299.7 µg/L

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

1300 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1299.7 µg/L

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

1000 µg/L

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

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

1000 µg/L

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

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

580 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 579.7 µg/L

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

270 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 269.7 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

260 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 259.7 µg/L

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

920 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 919.7 µg/L

11/5/2013

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

220 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 219.7 µg/L

11/5/2013

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

1200 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1199.7 µg/L

8/6/2013

12 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

1200 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1199.7 µg/L

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

1200 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1199.7 µg/L

8/6/2013

12 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

1100 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1099.7 µg/L

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

970 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 969.7 µg/L

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

890 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 889.7 µg/L

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

500 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 499.7 µg/L

8/6/2013

12 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

240 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 239.7 µg/L

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

230 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 229.7 µg/L

8/6/2013

12 years ago

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

Contaminant Details

tebuconazole (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.2 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

terbacil (12)

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<2 µg/L

Below Reporting Level

11/19/2002

22 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<2 µg/L

Below Reporting Level

7/9/2002

23 years ago

RIDGEMARK WELL 05 13S/05E-12K02

RIDGEMARK WELL 05 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

ENTERPRISE WELL 07 13S/06E-12D01

ENTERPRISE WELL 07 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 04 13S/05E-12K01

RIDGEMARK WELL 04 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

SOUTHSIDE WELL 02 3510003-007

SOUTHSIDE WELL 02 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

RIDGEMARK WELL 08 3510003-009

RIDGEMARK WELL 08 ℹ️

<2 µg/L

Below Reporting Level

5/28/2002

23 years ago

SAN JUSTO RESERVOIR INLET

SAN JUSTO RESERVOIR ℹ️

<2 µg/L

Below Reporting Level

4/16/2002

23 years ago

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

Contaminant Details

total microcystins (14)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

8/17/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

8/17/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

8/3/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

8/3/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

7/20/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

7/20/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

7/9/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

7/9/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/22/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/22/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/10/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

6/10/2020

5 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.3 µg/L

Below Reporting Level

5/4/2020

5 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.3 µg/L

Below Reporting Level

5/4/2020

5 years ago

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

Contaminant Details

Total Permethrin (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.04 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.04 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.04 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

tribufos (18)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.07 µg/L

Below Reporting Level

3/4/2019

6 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

6 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.07 µg/L

Below Reporting Level

9/4/2018

7 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

EP #19 - West Hills Eff

West Hills WTP (purchased) ℹ️

<0.07 µg/L

Below Reporting Level

6/5/2018

7 years ago

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

Contaminant Details

vanadium (22)

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

3.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.9 µg/L

5/6/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

3.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.9 µg/L

5/6/2014

11 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

6.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 6.2 µg/L

2/4/2014

11 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

6.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 6.2 µg/L

2/4/2014

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

5.7 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.5 µg/L

2/4/2014

11 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

5.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.3 µg/L

2/4/2014

11 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

5.3 µg/L

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

2/4/2014

11 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

4.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.6 µg/L

2/4/2014

11 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

4.2 µg/L

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

2/4/2014

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

3.6 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.4 µg/L

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

3.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.2 µg/L

2/4/2014

11 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

4.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.6 µg/L

11/5/2013

11 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

2.4 µg/L

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

11/5/2013

11 years ago

EP #11 - Enterprise Well 7 Treated

Enterprise Well 7 ℹ️

5.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.7 µg/L

8/6/2013

12 years ago

EP #10 - Ridgemark Well 5 Treated

Ridgemark Well 5 ℹ️

5.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.3 µg/L

8/6/2013

12 years ago

EP #17 Southside Well 11 EP Treated

Southside Well 11 ℹ️

5.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 5.3 µg/L

8/6/2013

12 years ago

EP #13 - Ridgemark Well 8 Treated

Ridgemark Well 8 ℹ️

4.6 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.4 µg/L

8/6/2013

12 years ago

EP #14 - Lessalt WTP Eff.

Lessalt WTP (Purchased) ℹ️

4.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.3 µg/L

8/6/2013

12 years ago

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)

Distribution System - GW ℹ️

4.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.3 µg/L

8/6/2013

12 years ago

DSMRT for Lessalt - 901 Santa Ana Road

Distribution System - SW ℹ️

4.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.2 µg/L

8/6/2013

12 years ago

DSMRT Ridgemark Well 5 & 8 - Sonnys Way Bathroom

Distribution System - GW ℹ️

4.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.1 µg/L

8/6/2013

12 years ago

EP #12 - Southside Well 2 Treated

Southside Well 2 ℹ️

4.2 µg/L

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

8/6/2013

12 years ago

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

Contaminant Details

Sampling Facilities

Ridgemark Well 8
Ground Water (GW)

EP #13 - Ridgemark Well 8 TreatedEntry Point to the Distribution System (EP)

Southside Well 2
Ground Water (GW)

EP #12 - Southside Well 2 TreatedEntry Point to the Distribution System (EP)

Enterprise Well 7
Ground Water (GW)

EP #11 - Enterprise Well 7 TreatedEntry Point to the Distribution System (EP)

Ridgemark Well 5
Ground Water (GW)

EP #10 - Ridgemark Well 5 TreatedEntry Point to the Distribution System (EP)

Lessalt WTP (Purchased)
Surface Water (SW)

EP #14 - Lessalt WTP Eff.Entry Point to the Distribution System (EP)

Southside Well 11
Ground Water (GW)

EP #17 Southside Well 11 EP TreatedEntry Point to the Distribution System (EP)

West Hills WTP (purchased)
Surface Water (SW)

EP #19 - West Hills EffEntry Point to the Distribution System (EP)

Distribution System
Multiple Sources (MX)

901 Santa AnaDistribution System (DS)

30 MansfieldDistribution System (DS)

830 ClearviewDistribution System (DS)

911 LeslieDistribution System (DS)

Distribution System - SW
Surface Water (SW)

DSMRT for Lessalt - 901 Santa Ana RoadMaximum Residence Time (MR)

Distribution System - GW
Ground Water (GW)

DSMRT Ridgemark Well 5 & 8 - Sonnys Way BathroomMaximum Residence Time (MR)

DSMRT SthSidW2, 11 EnterW 7- (830 Clearview)Maximum Residence Time (MR)

RIDGEMARK WELL 05
Ground Water (GW)

RIDGEMARK WELL 05 13S/05E-12K02SR (SR)

ENTERPRISE WELL 07
Ground Water (GW)

ENTERPRISE WELL 07 13S/06E-12D01SR (SR)

RIDGEMARK WELL 04
Ground Water (GW)

RIDGEMARK WELL 04 13S/05E-12K01SR (SR)

SOUTHSIDE WELL 02
Ground Water (GW)

SOUTHSIDE WELL 02 3510003-007SR (SR)

RIDGEMARK WELL 08
Ground Water (GW)

RIDGEMARK WELL 08 3510003-009SR (SR)

SAN JUSTO RESERVOIR
Surface Water (SW)

SAN JUSTO RESERVOIR INLETSR (SR)

FAQ

Is Sunnyslope County Water District tap water safe to drink?

When was Sunnyslope County Water District last tested for water contamination?

The latest water samples were taken on May 13th, 2025.