Is Warden City of Tap Water Safe? Quality Report

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.

health-based violations

218

violations on file

still open

Violation	Type	Status	Period
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 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	5120 µg/L 51% of the EPA limit 10000 µg/L worst single sample: 15900 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	2.977 µg/L No EPA limit set worst single sample: 3.25 µg/L	8/25	SYR4	2012–2019
Bromoform	13.61 µg/L No EPA limit set worst single sample: 14.8 µg/L	8/25	SYR4	2012–2019
Dibromoacetic Acid	3.1145 µg/L No EPA limit set worst single sample: 3.3 µg/L	8/8	SYR4	2014–2019
Dibromochloromethane	9.7605 µg/L No EPA limit set worst single sample: 10.8 µg/L	8/25	SYR4	2012–2019
TTHM	26.802 µg/L 34% of the EPA limit 80 µg/L worst single sample: 29.35 µg/L	8/8	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	3.1145 µg/L 5.2% of the EPA limit 60 µg/L worst single sample: 3.3 µg/L	8/8	SYR4	2014–2019
Chloroform	0.7300 µg/L No EPA limit set worst single sample: 0.7900 µg/L	7/25	SYR4	2012–2019
Trichloroethylene	0.7040 µg/L 14% of the EPA limit 5 µg/L worst single sample: 0.7100 µg/L	7/15	SYR4	2012–2019
Arsenic	5.7475 µg/L 57% of the EPA limit 10 µg/L worst single sample: 5.93 µg/L	6/6	SYR4	2012–2018
Barium	23.75 µg/L 1.2% of the EPA limit 2000 µg/L worst single sample: 26 µg/L	6/6	SYR4	2012–2018
Fluoride	826.75 µg/L 21% of the EPA limit 4000 µg/L worst single sample: 911 µg/L	6/6	SYR4	2012–2018
Nitrate-Nitrite	13744 µg/L 137% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 15900 µg/L	5/5	SYR4	2012–2018
Copper	3.497 µg/L 0.3% of the EPA limit 1300 µg/L worst single sample: 3.67 µg/L	3/6	SYR4	2012–2018
Chromium	1.453 µg/L 1.5% of the EPA limit 100 µg/L worst single sample: 1.5 µg/L	3/6	SYR4	2012–2018
Ethylene Dibromide	0.1164 µg/L 233% of the EPA limit, at the 95th percentile of samples — 0.0500 µg/L worst single sample: 0.1180 µg/L	2/7	SYR4	2012–2016
Lead	0.2920 µg/L 1.9% of the EPA limit 15 µg/L worst single sample: 0.3000 µg/L	2/6	SYR4	2012–2018
Selenium	4.81 µg/L 9.6% of the EPA limit 50 µg/L worst single sample: 4.9 µg/L	2/6	SYR4	2012–2018
Thallium, Total	0.2745 µg/L 14% of the EPA limit 2 µg/L worst single sample: 0.2800 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.