Cucamonga Valley Water District (CA) Water Quality

Cucamonga Valley Water District is a large public water system in EPA region 09 that provides tap water for the 91701, 91730, 91739, 91784 zip codes. It has 9 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 Cucamonga Valley Water District showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<2.0 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<2.0 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<2.0 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<2.0 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<2.0 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.5 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.5 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.5 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.5 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.5 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 13.68 µg/L. Learn more about HAA5 (five regulated haloacetic acids).

13.68µg/L
LWMWTP Effluent
Distribution System
10/25/2018
76 months ago
10.7 µg/L
Meets Reporting Threshold
Reservoir 3 Effluent
Distribution System
10/25/2018
76 months ago
9.05 µg/L
Meets Reporting Threshold
10485 Almond
Distribution System
10/25/2018
76 months ago
13.17 µg/L
Meets Reporting Threshold
5072 Castle
Distribution System
10/25/2018
76 months ago
11.36 µg/L
Meets Reporting Threshold
8525 Red Hill CC Rd.
Distribution System
10/25/2018
76 months ago
10.76 µg/L
Meets Reporting Threshold
5002 Aggazzotti
Distribution System
10/25/2018
76 months ago
13.68 µg/L
Meets Reporting Threshold
14295 E. Constitution Way
Distribution System
10/25/2018
76 months ago
11.91 µg/L
Meets Reporting Threshold
7410 Arbor Lane
Distribution System
10/25/2018
76 months ago
11.59 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).

LWMWTP Effluent
Distribution System
10/25/2018
76 months ago
23.5 µg/L
Reservoir 3 Effluent
Distribution System
10/25/2018
76 months ago
19.9 µg/L
10485 Almond
Distribution System
10/25/2018
76 months ago
29.7 µg/L
5072 Castle
Distribution System
10/25/2018
76 months ago
24.5 µg/L
8525 Red Hill CC Rd.
Distribution System
10/25/2018
76 months ago
22.5 µg/L
5002 Aggazzotti
Distribution System
10/25/2018
76 months ago
30.1 µg/L
14295 E. Constitution Way
Distribution System
10/25/2018
76 months ago
25.6 µg/L
7410 Arbor Lane
Distribution System
10/25/2018
76 months ago
25.8 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).

LWMWTP Effluent
Distribution System
10/25/2018
76 months ago
26.1 µg/L
Reservoir 3 Effluent
Distribution System
10/25/2018
76 months ago
22.05 µg/L
10485 Almond
Distribution System
10/25/2018
76 months ago
32.87 µg/L
5072 Castle
Distribution System
10/25/2018
76 months ago
27.16 µg/L
8525 Red Hill CC Rd.
Distribution System
10/25/2018
76 months ago
25.66 µg/L
5002 Aggazzotti
Distribution System
10/25/2018
76 months ago
33.78 µg/L
14295 E. Constitution Way
Distribution System
10/25/2018
76 months ago
28.31 µg/L
7410 Arbor Lane
Distribution System
10/25/2018
76 months ago
28.39 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 Cucamonga Valley Water District showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.01 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.01 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.01 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.01 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.01 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.01 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.01 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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.

EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
6/18/2019
68 months ago
<0.03 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
6/18/2019
68 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.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.

EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
6/18/2019
68 months ago
<0.09 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
6/18/2019
68 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 Cucamonga Valley Water District showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.2 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.2 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.03 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 2.5 µg/L. Learn more about Manganese.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
1.5 µg/L
Meets Reporting Threshold
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
2.5 µg/L
Meets Reporting Threshold
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
.53 µg/L
Meets Reporting Threshold
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.4 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.007 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.007 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.007 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.007 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.007 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.05 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.05 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.05 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.05 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.05 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.05 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.05 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.3 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.02 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.02 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.02 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.02 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.02 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.2 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.2 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.2 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.

EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
6/18/2019
68 months ago
<0.3 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
6/18/2019
68 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 Cucamonga Valley Water District showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.04 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.04 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.04 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.04 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.04 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.04 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.04 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 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 Cucamonga Valley Water District showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.

EP #40 - Reservoir 8B Treated
Reservoir 8B (Deer Creek)
7/17/2019
67 months ago
<0.07 µg/L
Below Reporting Level
EP #18 - Lloyd Michael WTP Eff.
Lloyd Michael WTP
10/10/2019
64 months ago
<0.07 µg/L
Below Reporting Level
EP #47 - Reservoir 3A Treated
Reservoir 3A
7/17/2019
67 months ago
<0.07 µg/L
Below Reporting Level
EP #45 - Reservoir 1 Treated
Reservoir 1
7/17/2019
67 months ago
<0.07 µg/L
Below Reporting Level
EP #44 - Arthur Bridge WTP Eff.
Arthur Bridge WTP
10/10/2019
64 months ago
<0.07 µg/L
Below Reporting Level
EP #43 - Reservoir 3 Treated
Reservoir 3
7/17/2019
67 months ago
<0.07 µg/L
Below Reporting Level
EP #918 - Reservoir 1B Treated
Reservoir 1B
7/17/2019
67 months ago
<0.07 µg/L
Below Reporting Level
EP#919 - Reservoir 1C Treated
Reservoir 1C
7/17/2019
67 months ago
<0.07 µg/L
Below Reporting Level

Sampling Facilities

Facility NameWater Type/Source
Reservoir 8B (Deer Creek)Ground Water (GW)
Lloyd Michael WTPSurface Water (SW)
Reservoir 3AGround Water (GW)
Reservoir 1Ground Water (GW)
Arthur Bridge WTPSurface Water (SW)
Reservoir 3Ground Water (GW)
Reservoir 1BGround Water (GW)
Reservoir 1CGround Water (GW)
Distribution SystemMultiple sources (MX)

FAQ

Is Cucamonga Valley Water District tap water safe to drink?

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

The latest water samples were taken between October 25th, 2018 and October 10th, 2019.