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Tap water quality report

Warden City of

EPA monitoring tested this supplier for 105 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

105
contaminants tested
21
detected
4,674
people served
11
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Grant

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.

11
health-based violations
218
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2020-01-01 → 2020-12-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-07-01 → 2000-07-31
MCL Health-based Archived 2000-07-01 → 2000-07-31
MCL Health-based Archived 2000-07-01 → 2000-07-31
MCL Health-based Archived 1997-10-01 → 1997-10-31
MCL Health-based Archived 1997-10-01 → 1997-10-31
MCL Health-based Archived 1997-10-01 → 1997-10-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
15900 µg/L 159%
of the EPA limit, in the worst sample — 10000 µg/L
 48/48 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2024
Bromodichloromethane
3.25 µg/L
No EPA limit set
 8/25 SYR4 2012–2019
Bromoform
14.8 µg/L
No EPA limit set
 8/25 SYR4 2012–2019
Dibromoacetic Acid
3.3 µg/L
No EPA limit set
 8/8 SYR4 2014–2019
Dibromochloromethane
10.8 µg/L
No EPA limit set
 8/25 SYR4 2012–2019
TTHM
29.35 µg/L 37%
of the EPA limit 80 µg/L
 8/8 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
3.3 µg/L 5.5%
of the EPA limit 60 µg/L
 8/8 SYR4 2014–2019
Chloroform
0.7900 µg/L
No EPA limit set
 7/25 SYR4 2012–2019
Trichloroethylene
0.7100 µg/L 14%
of the EPA limit 5 µg/L
 7/15 SYR4 2012–2019
Arsenic
5.93 µg/L 59%
of the EPA limit 10 µg/L
 6/6 SYR4 2012–2018
Barium
26 µg/L 1.3%
of the EPA limit 2000 µg/L
 6/6 SYR4 2012–2018
Fluoride
911 µg/L 23%
of the EPA limit 4000 µg/L
 6/6 SYR4 2012–2018
Nitrate-Nitrite
15900 µg/L 159%
of the EPA limit, in the worst sample — 10000 µg/L
 5/5 SYR4 2012–2018
Copper
3.67 µg/L 0.3%
of the EPA limit 1300 µg/L
 3/6 SYR4 2012–2018
Chromium
1.5 µg/L 1.5%
of the EPA limit 100 µg/L
 3/6 SYR4 2012–2018
Ethylene Dibromide
0.1180 µg/L 236%
of the EPA limit, in the worst sample — 0.0500 µg/L
 2/7 SYR4 2012–2016
Lead
0.3000 µg/L 2%
of the EPA limit 15 µg/L
 2/6 SYR4 2012–2018
Selenium
4.9 µg/L 9.8%
of the EPA limit 50 µg/L
 2/6 SYR4 2012–2018
Thallium, Total
0.2800 µg/L 14%
of the EPA limit 2 µg/L
 2/6 SYR4 2012–2018
Lithium
9.3 µg/L
No EPA limit set
 1/5 UCMR-5 2025
84 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Kristine Shuler

Frequently asked questions about Warden City of

Is Warden City of tap water safe to drink?

EPA monitoring detected 21 contaminants in Warden City of'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 Warden City of's water?

EPA monitoring detected Nitrate, Lead, Bromodichloromethane, Bromoform, Dibromoacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Warden City of serve?

Warden City of reports serving 4,674 people in Washington, per its EPA record.

Has Warden City of had any water quality violations?

The EPA has 218 violations on file for Warden City of, of which 11 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.