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Tap water quality report

Washington Water District

EPA monitoring tested this supplier for 68 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
5
detected
330
people served
10
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Private
Counties served
Nevada

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
57
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
TT Health-based Resolved 2007-10-01
TT Health-based Resolved 2007-10-01
TT Health-based Resolved 2007-10-01
TT Health-based Resolved 2002-11-01 → 2002-11-30
TT Health-based Resolved 2002-11-01 → 2002-11-30
TT Health-based Resolved 2002-11-01 → 2002-11-30
TT Health-based Resolved 2002-11-01 → 2002-11-30
TT Health-based Resolved 2002-11-01 → 2002-11-30
TT Health-based Resolved 2002-11-01 → 2002-11-30

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
Lead
0.0414 mg/L 276%
above the EPA limit of 0.0150 mg/L
 4/4 LCR 2023
Barium
11.8532 µg/L 0.6%
of the EPA limit 2000 µg/L
worst single sample: 12.4 µg/L
3/4 SYR4 2012–2019
Nitrate
630 µg/L 6.3%
of the EPA limit 10000 µg/L
 2/34 SYR4 2012–2019
Copper
2.479 µg/L 0.2%
of the EPA limit 1300 µg/L
 1/4 SYR4 2012–2019
Cadmium
3.2 µg/L 64%
of the EPA limit 5 µg/L
 1/4 SYR4 2012–2019
63 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JACKSON, TINA
Phone
530-265-4720
Email
[email protected]

Frequently asked questions about Washington Water District

Is Washington Water District tap water safe to drink?

EPA monitoring detected 5 contaminants in Washington 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 Washington Water District's water?

EPA monitoring detected Lead, Barium, Nitrate, Copper, Cadmium. The full list with the level and data source for each is above.

How many people does Washington Water District serve?

Washington Water District reports serving 330 people in California, per its EPA record.

Has Washington Water District had any water quality violations?

The EPA has 57 violations on file for Washington Water District, of which 10 are health-based (a contaminant limit or required treatment was breached) and 2 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.