West Valley Water District (CA) Water Quality

West Valley Water District is a large public water system in EPA region 09 that provides tap water for the 92316, 92337, 92377 zip codes. It has 19 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 21.2 µg/L. The maximum reported level of Manganese was 11 µg/L. There were 2 contamintants found in the West Valley Water District water supply at levels that were above the minimum reporting level. 0 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1-butanol

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<2.0 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<2.0 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<2.0 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<2.0 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<2.0 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<2.0 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<2.0 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<2.0 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<2.0 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<2.0 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<2.0 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L
Contaminant Details

2-methoxyethanol

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.4 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.4 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.4 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 21 µg/L
Contaminant Details

2-propen-1-ol (Allyl Alcohol)

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.5 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.5 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.5 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.5 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.5 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.5 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.5 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.5 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 35 µg/L
Contaminant Details

HAA5 (five regulated haloacetic acids)

3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
21.5%
12.9 µg/L
Meets Reporting Threshold
10/16/2018
6 years ago
18433 Bohnert
18433 Bohnert ℹ️
21%
12.6 µg/L
Meets Reporting Threshold
10/16/2018
6 years ago
White Ash Road
White Ash Road ℹ️
15.3%
9.2 µg/L
Meets Reporting Threshold
10/16/2018
6 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
13.8%
8.3 µg/L
Meets Reporting Threshold
10/16/2018
6 years ago
Via Montana and Via Bonita
Via Montana and Via Bonita ℹ️
1.4%
.83 µg/L
Meets Reporting Threshold
7/17/2018
7 years ago
Hall and Kinningham
Hall and Kinningham ℹ️
0%
0 µg/L
Meets Reporting Threshold
7/17/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
54.7%
32.8 µg/L
⚠️ Exceeds 50% of Reference Level
7/16/2018
7 years ago
White Ash Road
White Ash Road ℹ️
44%
26.4 µg/L
Meets Reporting Threshold
7/16/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
37.8%
22.7 µg/L
Meets Reporting Threshold
7/16/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
35.8%
21.5 µg/L
Meets Reporting Threshold
7/16/2018
7 years ago
15182 Crane
15182 Crane ℹ️
35.3%
21.2 µg/L
Meets Reporting Threshold
7/16/2018
7 years ago
213 E. Walnut
213 E. Walnut ℹ️
0.5%
.29 µg/L
Meets Reporting Threshold
7/16/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
15%
9 µg/L
Meets Reporting Threshold
4/11/2018
7 years ago
White Ash Road
White Ash Road ℹ️
12.5%
7.47 µg/L
Meets Reporting Threshold
4/11/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
12.1%
7.23 µg/L
Meets Reporting Threshold
4/11/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
11.1%
6.64 µg/L
Meets Reporting Threshold
4/11/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
18.8%
11.3 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
White Ash Road
White Ash Road ℹ️
10.6%
6.34 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
9%
5.4 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
6.5%
3.9 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
213 E. Walnut
213 E. Walnut ℹ️
0.4%
.24 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
15182 Crane
15182 Crane ℹ️
0%
0 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
Via Montana and Via Bonita
Via Montana and Via Bonita ℹ️
0%
0 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
Hall and Kinningham
Hall and Kinningham ℹ️
0%
0 µg/L
Meets Reporting Threshold
1/8/2018
7 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 60 µg/L
Contaminant Details

HAA6Br (six brominated haloacetic acids)

18433 Bohnert
18433 Bohnert ℹ️
0%
27.2 µg/L
10/16/2018
6 years ago
White Ash Road
White Ash Road ℹ️
0%
19.6 µg/L
10/16/2018
6 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
16.8 µg/L
10/16/2018
6 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
16.6 µg/L
10/16/2018
6 years ago
Via Montana and Via Bonita
Via Montana and Via Bonita ℹ️
0%
.83 µg/L
7/17/2018
7 years ago
Hall and Kinningham
Hall and Kinningham ℹ️
0%
0 µg/L
7/17/2018
7 years ago
White Ash Road
White Ash Road ℹ️
0%
29.9 µg/L
7/16/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
0%
27.9 µg/L
7/16/2018
7 years ago
15182 Crane
15182 Crane ℹ️
0%
27.8 µg/L
7/16/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
27.6 µg/L
7/16/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
27.3 µg/L
7/16/2018
7 years ago
213 E. Walnut
213 E. Walnut ℹ️
0%
0 µg/L
7/16/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
10.44 µg/L
4/11/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
0%
10.33 µg/L
4/11/2018
7 years ago
White Ash Road
White Ash Road ℹ️
0%
7.31 µg/L
4/11/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
6.45 µg/L
4/11/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
11.2 µg/L
1/8/2018
7 years ago
White Ash Road
White Ash Road ℹ️
0%
5.36 µg/L
1/8/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
2.83 µg/L
1/8/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
0%
2.8 µg/L
1/8/2018
7 years ago
213 E. Walnut
213 E. Walnut ℹ️
0%
.75 µg/L
1/8/2018
7 years ago
15182 Crane
15182 Crane ℹ️
0%
0 µg/L
1/8/2018
7 years ago
Via Montana and Via Bonita
Via Montana and Via Bonita ℹ️
0%
0 µg/L
1/8/2018
7 years ago
Hall and Kinningham
Hall and Kinningham ℹ️
0%
0 µg/L
1/8/2018
7 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

HAA9 (nine haloacetic acids)

18433 Bohnert
18433 Bohnert ℹ️
0%
32 µg/L
10/16/2018
6 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
25.9 µg/L
10/16/2018
6 years ago
White Ash Road
White Ash Road ℹ️
0%
23.5 µg/L
10/16/2018
6 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
20.6 µg/L
10/16/2018
6 years ago
Via Montana and Via Bonita
Via Montana and Via Bonita ℹ️
0%
1.34 µg/L
7/17/2018
7 years ago
Hall and Kinningham
Hall and Kinningham ℹ️
0%
0 µg/L
7/17/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
53 µg/L
7/16/2018
7 years ago
White Ash Road
White Ash Road ℹ️
0%
48.8 µg/L
7/16/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
42.5 µg/L
7/16/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
0%
41.5 µg/L
7/16/2018
7 years ago
15182 Crane
15182 Crane ℹ️
0%
41.3 µg/L
7/16/2018
7 years ago
213 E. Walnut
213 E. Walnut ℹ️
0%
.29 µg/L
7/16/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
14.45 µg/L
4/11/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
0%
14.43 µg/L
4/11/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
13.94 µg/L
4/11/2018
7 years ago
White Ash Road
White Ash Road ℹ️
0%
13.01 µg/L
4/11/2018
7 years ago
3750 Lytle Creek Road
3750 Lytle Creek Road ℹ️
0%
20.5 µg/L
1/8/2018
7 years ago
White Ash Road
White Ash Road ℹ️
0%
10.96 µg/L
1/8/2018
7 years ago
Reservoir 6-3 Discharge Line
Reservoir 6-3 Discharge Line ℹ️
0%
8.23 µg/L
1/8/2018
7 years ago
18433 Bohnert
18433 Bohnert ℹ️
0%
6.7 µg/L
1/8/2018
7 years ago
213 E. Walnut
213 E. Walnut ℹ️
0%
.99 µg/L
1/8/2018
7 years ago
15182 Crane
15182 Crane ℹ️
0%
0 µg/L
1/8/2018
7 years ago
Via Montana and Via Bonita
Via Montana and Via Bonita ℹ️
0%
0 µg/L
1/8/2018
7 years ago
Hall and Kinningham
Hall and Kinningham ℹ️
0%
0 µg/L
1/8/2018
7 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

alpha-hexachlorocyclohexane

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.01 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.01 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.01 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.01 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.01 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.01 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.01 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.01 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.01 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.01 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.01 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.01 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.01 µg/L
Reference Level: 0.006 µg/L
Contaminant Details

anatoxin-a

EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/16/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/20/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/7/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/17/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/18/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/4/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

Butylated Hydroxyanisole

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/4/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/4/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

chlorpyrifos

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 2 µg/L
Contaminant Details

cylindrospermopsin

EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/16/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/20/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/7/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/17/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
4/18/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
4/4/2018
7 years ago
Minimum Reporting Level: 0.09 µg/L
Reference Level: 0.7 µg/L
Contaminant Details

dimethipin

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.2 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 140 µg/L
Contaminant Details

ethoprop

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.03 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 1.14 µg/L
Contaminant Details

Germanium

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

Manganese

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
3.7%
11 µg/L
Meets Reporting Threshold
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
1.2%
3.5 µg/L
Meets Reporting Threshold
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0.2%
.47 µg/L
Meets Reporting Threshold
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
43.3%
130 µg/L
Meets Reporting Threshold
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0.9%
2.8 µg/L
Meets Reporting Threshold
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/13/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
2.3%
6.9 µg/L
Meets Reporting Threshold
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0.6%
1.7 µg/L
Meets Reporting Threshold
7/12/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0.6%
1.8 µg/L
Meets Reporting Threshold
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0.2%
.53 µg/L
Meets Reporting Threshold
1/10/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0.5%
1.6 µg/L
Meets Reporting Threshold
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.4 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 300 µg/L
Contaminant Details

o-toluidine

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.007 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.007 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.007 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.007 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/4/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/4/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.007 µg/L
Reference Level: ?
Contaminant Details

oxyfluorfen

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.05 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.05 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.05 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.05 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.05 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.05 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.05 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.05 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.05 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.05 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.05 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.05 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.05 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.05 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.05 µg/L
Reference Level: 200 µg/L
Contaminant Details

profenofos

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.3 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

quinoline

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.02 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.02 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.02 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/4/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/4/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/10/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/10/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/9/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.02 µg/L
Reference Level: 0.01 µg/L
Contaminant Details

tebuconazole

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.2 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.2 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 190 µg/L
Contaminant Details

Total Microcystin

EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/16/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/20/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/7/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/17/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
4/18/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
4/4/2018
7 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

Total Permethrin

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.04 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.04 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.04 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.04 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.04 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.04 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.04 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.04 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.04 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.04 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.04 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.04 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.04 µg/L
Reference Level: 3.344 µg/L
Contaminant Details

tribufos

EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/2/2020
4 years ago
EP #37 - Rialto Basin Well 23A ID 3610004037
Well 16 ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/10/2020
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.07 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.07 µg/L
Below Reporting Level
1/8/2020
5 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.07 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.07 µg/L
Below Reporting Level
11/12/2019
5 years ago
EP #46 - Well 54
Well 54 ℹ️
0%
<0.07 µg/L
Below Reporting Level
8/27/2019
6 years ago
EP #42 - Lytle Basin Well 8A
Well 8A ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/24/2019
6 years ago
EP #18 - Rialto Basin Well 24
Well 24 ℹ️
0%
<0.07 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #33 - Rialto Basin Well 33
Well 33 ℹ️
0%
<0.07 µg/L
Below Reporting Level
5/9/2019
6 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
10/16/2018
6 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/13/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/12/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/12/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/12/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
7/3/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
4/11/2018
7 years ago
EP #36 - 5-3 Reservoir
Roemer WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #43 - Lytle Basin Well 4A
Well 4A ℹ️
0%
<0.07 µg/L
Below Reporting Level
2/28/2018
7 years ago
EP #24 - 3A PS Bunker Hill Basin
Well 30 ℹ️
0%
<0.07 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Sample Tap on Perchlorate System
Well 42 ℹ️
0%
<0.07 µg/L
Below Reporting Level
2/28/2018
7 years ago
Effluent Tap on Perchlorate System
Well 17 ℹ️
0%
<0.07 µg/L
Below Reporting Level
1/10/2018
7 years ago
9th Street Sample Station 48" Line
Baseline Feeder ℹ️
0%
<0.07 µg/L
Below Reporting Level
1/9/2018
7 years ago
Minimum Reporting Level: 0.07 µg/L
Reference Level: 0.6 µg/L
Contaminant Details

Sampling Facilities

Well 54
Ground Water (GW)

EP #46 - Well 54EP

Roemer WTP
Surface Water (SW)

EP #36 - 5-3 ReservoirEP

Well 4A
Ground Water (GW)

EP #43 - Lytle Basin Well 4AEP

Well 8A
Ground Water (GW)

EP #42 - Lytle Basin Well 8AEP

Well 24
Ground Water (GW)

EP #18 - Rialto Basin Well 24EP

Well 30
Ground Water (GW)

EP #24 - 3A PS Bunker Hill BasinEP

Well 16
Ground Water (GW)

EP #37 - Rialto Basin Well 23A ID 3610004037EP

Well 33
Ground Water (GW)

EP #33 - Rialto Basin Well 33EP

Baseline Feeder
Ground Water (GW)

9th Street Sample Station 48" LineEP

213 E. Walnut
Ground Water (GW)

213 E. WalnutDS

3750 Lytle Creek Road
Multiple sources (MX)

3750 Lytle Creek RoadDS

15182 Crane
Ground Water (GW)

15182 CraneDS

White Ash Road
Multiple sources (MX)

White Ash RoadDS

Reservoir 6-3 Discharge Line
Multiple sources (MX)

Reservoir 6-3 Discharge LineDS

18433 Bohnert
Multiple sources (MX)

18433 BohnertDS

Via Montana and Via Bonita
Ground Water (GW)

Via Montana and Via BonitaDS

Hall and Kinningham
Ground Water (GW)

Hall and KinninghamDS

Well 17
Ground Water (GW)

Effluent Tap on Perchlorate SystemEP

Well 42
Ground Water (GW)

Effluent Sample Tap on Perchlorate SystemEP

FAQ

Is West Valley Water District tap water safe to drink?

When was West Valley Water District last tested for water contamination?

The latest water samples were taken between July 12th, 2018 and December 2nd, 2020.