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.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 13.68 µg/L. The maximum reported level of Manganese was 2.5 µg/L. There were 2 contamintants found in the Cucamonga 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

2-methoxyethanol

2-propen-1-ol (Allyl Alcohol)

HAA5 (five regulated haloacetic acids)

HAA6Br (six brominated haloacetic acids)

HAA9 (nine haloacetic acids)

alpha-hexachlorocyclohexane

anatoxin-a

Butylated Hydroxyanisole

chlorpyrifos

cylindrospermopsin

dimethipin

ethoprop

Germanium

Manganese

o-toluidine

oxyfluorfen

profenofos

quinoline

tebuconazole

Total Microcystin

Total Permethrin

tribufos

Sampling Facilities

Reservoir 8B (Deer Creek)
Ground Water (GW)

EP #40 - Reservoir 8B TreatedEP

Lloyd Michael WTP
Surface Water (SW)

EP #18 - Lloyd Michael WTP Eff.EP

Reservoir 3A
Ground Water (GW)

EP #47 - Reservoir 3A TreatedEP

Reservoir 1
Ground Water (GW)

EP #45 - Reservoir 1 TreatedEP

Arthur Bridge WTP
Surface Water (SW)

EP #44 - Arthur Bridge WTP Eff.EP

Reservoir 3
Ground Water (GW)

EP #43 - Reservoir 3 TreatedEP

Reservoir 1B
Ground Water (GW)

EP #918 - Reservoir 1B TreatedEP

Reservoir 1C
Ground Water (GW)

EP#919 - Reservoir 1C TreatedEP

Distribution System
Multiple sources (MX)

LWMWTP EffluentDS
Reservoir 3 EffluentDS
10485 AlmondDS
5072 CastleDS
8525 Red Hill CC Rd.DS
5002 AggazzottiDS
14295 E. Constitution WayDS
7410 Arbor LaneDS

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.