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Redwood Valley County Water District

EPA monitoring tested this supplier for 104 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
16
detected
5,200
people served
10
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
Mendocino

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.

10
health-based violations
11
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2005-04-01 → 2005-06-30
MCL Health-based Resolved 2005-04-01 → 2005-06-30
MCL Health-based Resolved 2005-04-01 → 2005-06-30
MCL Health-based Resolved 2005-04-01 → 2005-06-30
MCL Health-based Resolved 2005-01-01 → 2005-03-31
MCL Health-based Resolved 2005-01-01 → 2005-03-31
MCL Health-based Resolved 2005-01-01 → 2005-03-31
MCL Health-based Resolved 2005-01-01 → 2005-03-31
TT Health-based Resolved 1995-01-01 → 1995-01-31
TT Health-based Resolved 1995-01-01 → 1995-01-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
9.1475 µg/L
No EPA limit set
worst single sample: 11.88 µg/L
60/60 SYR4 2012–2019
Chloroform
75.993 µg/L
No EPA limit set
worst single sample: 127.7 µg/L
60/60 SYR4 2012–2019
TTHM
85.8835 µg/L 107%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 138.55 µg/L
60/60 SYR4 2012–2019
Dichloroacetic Acid
24.135 µg/L
No EPA limit set
worst single sample: 57.9 µg/L
54/58 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
42.285 µg/L 70%
of the EPA limit 60 µg/L
worst single sample: 88.3 µg/L
54/58 SYR4 2012–2019
Trichloroacetic Acid
22.68 µg/L
No EPA limit set
worst single sample: 30.3 µg/L
53/58 SYR4 2012–2019
Dibromochloromethane
5.85 µg/L
No EPA limit set
worst single sample: 7.5 µg/L
37/60 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Dibromoacetic Acid
2.7 µg/L
No EPA limit set
 10/58 SYR4 2012–2019
Monochloroacetic Acid
6.65 µg/L
No EPA limit set
worst single sample: 7.1 µg/L
6/58 SYR4 2012–2019
Barium
527 µg/L 26%
of the EPA limit 2000 µg/L
worst single sample: 570 µg/L
3/8 SYR4 2012–2019
Fluoride
110 µg/L 2.8%
of the EPA limit 4000 µg/L
 3/8 SYR4 2012–2019
Bromoform
2.028 µg/L
No EPA limit set
worst single sample: 2.08 µg/L
2/60 SYR4 2012–2019
Monobromoacetic Acid
1.86 µg/L
No EPA limit set
worst single sample: 1.9 µg/L
2/58 SYR4 2012–2019
Arsenic
3.1 µg/L 31%
of the EPA limit 10 µg/L
 1/10 SYR4 2012–2019
Gross Beta Particle Activity
4 pCi/L
No EPA limit set
 1/1 SYR4 2017
88 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WALKER, JARED
Phone
707-462-2666
Email
[email protected]

Frequently asked questions about Redwood Valley County Water District

Is Redwood Valley County Water District tap water safe to drink?

EPA monitoring detected 16 contaminants in Redwood Valley County Water District'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 Redwood Valley County Water District's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Dichloroacetic Acid, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Redwood Valley County Water District serve?

Redwood Valley County Water District reports serving 5,200 people in California, per its EPA record.

Has Redwood Valley County Water District had any water quality violations?

The EPA has 11 violations on file for Redwood Valley County Water District, of which 10 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.