San Gabriel Valley Water Co. - Fontana (CA) Water Quality

San Gabriel Valley Water Co. - Fontana is a large public water system in EPA region 09 that provides tap water for the 92335 - 92337 zip codes. It has 11 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

Contaminants

1-butanol

1-butanol is a class of Alcohol that has a minimum reporting level of 2 µg/L and a reference level of 700 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<2.0 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<2.0 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<2.0 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<2.0 µg/L
Below Reporting Level

2-methoxyethanol

2-methoxyethanol is a class of Alcohol that has a minimum reporting level of 0.4 µg/L and a reference level of 21 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level

2-propen-1-ol (Allyl Alcohol)

2-propen-1-ol (Allyl Alcohol) is a class of Alcohol that has a minimum reporting level of 0.5 µg/L and a reference level of 35 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.5 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.5 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.5 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.5 µg/L
Below Reporting Level

HAA5 (five regulated haloacetic acids)

HAA5 (five regulated haloacetic acids) are a class of Disinfection Byproducts that includes Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid, Trichloroacetic Acid and has a minimum reporting level of 0.5 µg/L and a reference level of 60 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 12.5 µg/L. Learn more about HAA5 (five regulated haloacetic acids).

12.5µg/L
8566 Pecan
Distribution System
1/7/2019
74 months ago
12.5 µg/L
Meets Reporting Threshold
11815 Overland
Distribution System
1/7/2019
74 months ago
8.57 µg/L
Meets Reporting Threshold
15072 Snapdragon
Distribution System
1/7/2019
74 months ago
12.3 µg/L
Meets Reporting Threshold
16779 Spring
Distribution System
1/7/2019
74 months ago
9.1 µg/L
Meets Reporting Threshold
17876 Taylor
Distribution System
1/7/2019
74 months ago
11.3 µg/L
Meets Reporting Threshold
18215 Grove
Distribution System
1/7/2019
74 months ago
.59 µg/L
Meets Reporting Threshold
5445 Buckskin
Distribution System
1/7/2019
74 months ago
7.99 µg/L
Meets Reporting Threshold
10795 Bennett
Distribution System
1/7/2019
74 months ago
6.36 µg/L
Meets Reporting Threshold

HAA6Br (six brominated haloacetic acids)

HAA6Br (six brominated haloacetic acids) are a class of Disinfection Byproducts that includes Bromochloroacetic Acid, Bromodichloroacetic Acid, Dibromoacetic Acid, Dibromochloroacetic Acid, Monobromoacetic Acid, Tribromoacetic Acid and has a minimum reporting level of 0 µg/L and is a potential threat to human health. Learn more about HAA6Br (six brominated haloacetic acids).

8566 Pecan
Distribution System
1/7/2019
74 months ago
28.5 µg/L
11815 Overland
Distribution System
1/7/2019
74 months ago
19 µg/L
15072 Snapdragon
Distribution System
1/7/2019
74 months ago
28.1 µg/L
16779 Spring
Distribution System
1/7/2019
74 months ago
21.3 µg/L
17876 Taylor
Distribution System
1/7/2019
74 months ago
25.3 µg/L
18215 Grove
Distribution System
1/7/2019
74 months ago
1.45 µg/L
5445 Buckskin
Distribution System
1/7/2019
74 months ago
17.9 µg/L
10795 Bennett
Distribution System
1/7/2019
74 months ago
12.4 µg/L

HAA9 (nine haloacetic acids)

HAA9 (nine haloacetic acids) are a class of Disinfection Byproducts that includes Bromochloroacetic Acid, Bromodichloroacetic Acid, Chlorodibromoacetic Acid, Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid, Tribromoacetic Acid, Trichloroacetic Acid and has a minimum reporting level of 0 µg/L and is a potential threat to human health. Learn more about HAA9 (nine haloacetic acids).

8566 Pecan
Distribution System
1/7/2019
74 months ago
33.2 µg/L
11815 Overland
Distribution System
1/7/2019
74 months ago
22.17 µg/L
15072 Snapdragon
Distribution System
1/7/2019
74 months ago
33.1 µg/L
16779 Spring
Distribution System
1/7/2019
74 months ago
24.7 µg/L
17876 Taylor
Distribution System
1/7/2019
74 months ago
29.5 µg/L
18215 Grove
Distribution System
1/7/2019
74 months ago
1.45 µg/L
5445 Buckskin
Distribution System
1/7/2019
74 months ago
21.09 µg/L
10795 Bennett
Distribution System
1/7/2019
74 months ago
14.86 µg/L

alpha-hexachlorocyclohexane

alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.01 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.01 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.01 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.01 µg/L
Below Reporting Level

anatoxin-a

anatoxin-a is a chemical contaminant that is a potential threat to human health. Learn more about anatoxin-a.

Reservoir F-10 Effluent
Reservoir F-10
7/23/2018
79 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
7/23/2018
79 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
6/22/2020
56 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
7/23/2018
79 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
7/23/2018
79 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
8/27/2018
78 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
7/23/2018
79 months ago
<0.03 µg/L
Below Reporting Level

Butylated Hydroxyanisole

Butylated Hydroxyanisole is a chemical contaminant that is a potential threat to human health. Learn more about Butylated Hydroxyanisole.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level

chlorpyrifos

chlorpyrifos is a chemical contaminant that has a reference level of 2 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level

cylindrospermopsin

cylindrospermopsin is a chemical contaminant that has a reference level of 0.7 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.

Reservoir F-10 Effluent
Reservoir F-10
7/23/2018
79 months ago
<0.09 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
7/23/2018
79 months ago
<0.09 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
6/22/2020
56 months ago
<0.09 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
7/23/2018
79 months ago
<0.09 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
7/23/2018
79 months ago
<0.09 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
8/27/2018
78 months ago
<0.09 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
7/23/2018
79 months ago
<0.09 µg/L
Below Reporting Level

dimethipin

dimethipin is a chemical contaminant that has a reference level of 140 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level

ethoprop

ethoprop is a chemical contaminant that has a reference level of 1.14 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.03 µg/L
Below Reporting Level

Germanium

Germanium is a chemical contaminant that is a potential threat to human health. Learn more about Germanium.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level

Manganese

Manganese is a chemical contaminant that has a reference level of 300 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 1.5 µg/L. Learn more about Manganese.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
.53 µg/L
Meets Reporting Threshold
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
1.5 µg/L
Meets Reporting Threshold
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
.54 µg/L
Meets Reporting Threshold
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.4 µg/L
Below Reporting Level

o-toluidine

o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.007 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.007 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.007 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.007 µg/L
Below Reporting Level

oxyfluorfen

oxyfluorfen is a chemical contaminant that has a reference level of 200 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.05 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.05 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.05 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.05 µg/L
Below Reporting Level

profenofos

profenofos is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.3 µg/L
Below Reporting Level

quinoline

quinoline is a chemical contaminant that has a reference level of 0.01 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.02 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.02 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
6/10/2020
56 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
6/11/2020
56 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/1/2020
54 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.02 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.02 µg/L
Below Reporting Level

tebuconazole

tebuconazole is a chemical contaminant that has a reference level of 190 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.2 µg/L
Below Reporting Level

Total Microcystin

Total Microcystin is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.

Reservoir F-10 Effluent
Reservoir F-10
7/23/2018
79 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
7/23/2018
79 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
6/22/2020
56 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
7/23/2018
79 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
7/23/2018
79 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
7/23/2018
79 months ago
<0.3 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
7/23/2018
79 months ago
<0.3 µg/L
Below Reporting Level

Total Permethrin

Total Permethrin is a chemical contaminant that has a reference level of 3.344 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.04 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.04 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.04 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.04 µg/L
Below Reporting Level

tribufos

tribufos is a chemical contaminant that has a reference level of 0.6 µg/L. All the latest water samples for San Gabriel Valley Water Co. - Fontana showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.

Reservoir F-10 Effluent
Reservoir F-10
9/1/2020
54 months ago
<0.07 µg/L
Below Reporting Level
Well F-26A
Well F-26
6/10/2020
56 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-23 Effluent
Reservoir F-23
9/1/2020
54 months ago
<0.07 µg/L
Below Reporting Level
Well F-31A Treated
Well F-31A
7/20/2020
55 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-15
Reservoir F-15
12/7/2020
50 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-7 Effluent
Reservoir F-7
7/20/2020
55 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-13 Effluent
Reservoir F-13
9/28/2020
53 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-17 Effluent
Reservoir F-17
9/1/2020
54 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-19 Effluent
Reservoir F-19
9/1/2020
54 months ago
<0.07 µg/L
Below Reporting Level
Reservoir F-44 Effluent
Reservoir F-44
9/1/2020
54 months ago
<0.07 µg/L
Below Reporting Level

Sampling Facilities

Facility NameWater Type/Source
Distribution SystemMultiple sources (MX)
Reservoir F-10Multiple sources (MX)
Well F-26Ground Water (GW)
Reservoir F-23Multiple sources (MX)
Well F-31AGround Water (GW)
Reservoir F-15Multiple sources (MX)
Reservoir F-7Ground Water (GW)
Reservoir F-13Multiple sources (MX)
Reservoir F-17Multiple sources (MX)
Reservoir F-19Multiple sources (MX)
Reservoir F-44Multiple sources (MX)

FAQ

Is San Gabriel Valley Water Co. - Fontana tap water safe to drink?

When was San Gabriel Valley Water Co. - Fontana last tested for water contamination?

The latest water samples were taken between July 23rd, 2018 and December 7th, 2020.