Is Valley County Water Dist. Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Los Angeles

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	1993-06-01 → 1993-10-31
TT	Health-based	Resolved	1993-06-01 → 1993-10-31
TT	Health-based	Resolved	1993-06-01 → 1993-10-31
TT	Health-based	Resolved	1993-06-01 → 1993-10-31
MON	Monitoring	Resolved	2019-08-01 → 2019-08-31
MON	Monitoring	Resolved	2019-08-01 → 2019-08-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	10000 µg/L 100% of the EPA limit 10000 µg/L worst single sample: 20000 µg/L	3268/3290	SYR4	2012–2019
Tetrachloroethylene	97 µg/L 1940% of the EPA limit, at the 95th percentile of samples — 5 µg/L worst single sample: 260 µg/L	719/5273	SYR4	2012–2019
Trichloroethylene	40.1 µg/L 802% of the EPA limit, at the 95th percentile of samples — 5 µg/L worst single sample: 76 µg/L	619/5273	SYR4	2012–2019
TTHM	4.8 µg/L 6% of the EPA limit 80 µg/L worst single sample: 27 µg/L	213/2877	SYR4	2012–2019
1,1-Dichloroethylene	7.4 µg/L 106% of the EPA limit, at the 95th percentile of samples — 7 µg/L worst single sample: 13 µg/L	175/5243	SYR4	2012–2019
cis-1,2-Dichloroethylene	4.8 µg/L 6.9% of the EPA limit 70 µg/L worst single sample: 7.8 µg/L	146/5243	SYR4	2012–2019
Dibromochloromethane	1.975 µg/L No EPA limit set worst single sample: 2.5 µg/L	86/4901	SYR4	2012–2019
Bromoform	2.5 µg/L No EPA limit set worst single sample: 4.3 µg/L	54/4901	SYR4	2012–2019
Chloroform	3.89 µg/L No EPA limit set worst single sample: 27 µg/L	48/4901	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	39/39	LCR	2023
Barium	210 µg/L 11% of the EPA limit 2000 µg/L worst single sample: 230 µg/L	28/28	SYR4	2012–2019
Fluoride	310 µg/L 7.8% of the EPA limit 4000 µg/L	28/28	SYR4	2012–2019
Bromodichloromethane	1.7 µg/L No EPA limit set	19/4901	SYR4	2012–2019
Arsenic	2.1 µg/L 21% of the EPA limit 10 µg/L	12/28	SYR4	2012–2019
Carbon Tetrachloride	0.8300 µg/L 17% of the EPA limit 5 µg/L worst single sample: 0.8900 µg/L	11/5188	SYR4	2012–2019
Dichloromethane	1.92 µg/L 38% of the EPA limit 5 µg/L worst single sample: 2 µg/L	9/5188	SYR4	2012–2019
Combined Uranium	7.85975 µg/L 26% of the EPA limit 30 µg/L worst single sample: 8.642 µg/L	6/6	SYR4	2014–2017
Dibromoacetic Acid	2.15 µg/L No EPA limit set worst single sample: 2.3 µg/L	6/256	SYR4	2012–2019
Nitrate-Nitrite	17275 µg/L 173% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 20000 µg/L	6/6	SYR4	2017–2018
Total Haloacetic Acids (HAA5)	2.15 µg/L 3.6% of the EPA limit 60 µg/L worst single sample: 2.3 µg/L	6/256	SYR4	2012–2019
trans-1,2-Dichloroethylene	10.86 µg/L 11% of the EPA limit 100 µg/L worst single sample: 12 µg/L	3/5188	SYR4	2012–2019

62 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumChromiumDi(2-ethylhexyl) PhthalateDichloroacetic AcidEthylene DibromideEthylbenzeneHfpo-DaLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneThallium, TotalTolueneTrichloroacetic AcidVinyl ChlorideXylenes, TotalLithiumO-DichlorobenzeneP-Dichlorobenzene

Utility contact

Contact: ROBINSON, TARA
Phone: 626-338-7301
Email: [email protected]

Frequently asked questions about Valley County Water Dist.

Is Valley County Water Dist. tap water safe to drink?

EPA monitoring detected 21 contaminants in Valley County Water Dist.'s water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Valley County Water Dist.'s water?

EPA monitoring detected Nitrate, Tetrachloroethylene, Trichloroethylene, TTHM, 1,1-Dichloroethylene, and others. The full list with the level and data source for each is above.

How many people does Valley County Water Dist. serve?

Valley County Water Dist. reports serving 68,871 people in California, per its EPA record.

Has Valley County Water Dist. had any water quality violations?

The EPA has 6 violations on file for Valley County Water Dist., of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.