Is Tonopah Public Utilities Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Nye

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
MCL	Health-based	Archived	1998-11-01 → 1998-11-30
MCL	Health-based	Archived	1995-05-01 → 1995-05-31
MCL	Health-based	Archived	1993-07-01 → 1993-07-31
MR	Monitoring	Unaddressed	2025-10-01
MR	Monitoring	Unaddressed	2025-10-01
MR	Monitoring	Resolved	2024-07-01 → 2024-09-30
MR	Monitoring	Resolved	2024-07-01 → 2024-09-30
MR	Monitoring	Resolved	2024-07-01 → 2024-09-30
MR	Monitoring	Resolved	2024-07-01 → 2024-09-30
MR	Monitoring	Resolved	2024-07-01 → 2024-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	6500 µg/L 65% of the EPA limit 10000 µg/L worst single sample: 7000 µg/L	98/98	SYR4	2012–2019
Arsenic	10 µg/L 100% of the EPA limit 10 µg/L worst single sample: 11 µg/L	39/39	SYR4	2012–2019
Nitrate-Nitrite	6680 µg/L 67% of the EPA limit 10000 µg/L worst single sample: 7000 µg/L	17/17	SYR4	2012–2019
Combined Uranium	4 µg/L 13% of the EPA limit 30 µg/L	10/10	SYR4	2012–2014
Gross Beta Particle Activity	6.246 pCi/L No EPA limit set worst single sample: 6.33 pCi/L	9/9	SYR4	2012–2014
Barium	119.5 µg/L 6% of the EPA limit 2000 µg/L worst single sample: 130 µg/L	8/8	SYR4	2012–2019
Copper	33.85 µg/L 2.6% of the EPA limit 1300 µg/L worst single sample: 44 µg/L	8/9	SYR4	2012–2019
Chromium	2 µg/L 2% of the EPA limit 100 µg/L	8/8	SYR4	2012–2019
Combined Radium (-226 And -228)	0.6701 pCi/L 13% of the EPA limit 5 pCi/L worst single sample: 0.6870 pCi/L	8/9	SYR4	2012–2014
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	8/8	LCR	2025
Fluoride	1170 µg/L 29% of the EPA limit 4000 µg/L worst single sample: 1500 µg/L	7/9	SYR4	2012–2019
TTHM	1.207 µg/L 1.5% of the EPA limit 80 µg/L worst single sample: 1.3 µg/L	4/16	SYR4	2012–2019
Bromoform	0.8960 µg/L No EPA limit set worst single sample: 0.9200 µg/L	3/16	SYR4	2012–2019
Lead	53.5 µg/L 357% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 59 µg/L	3/8	SYR4	2012–2019
Dibromochloromethane	0.4310 µg/L No EPA limit set worst single sample: 0.4400 µg/L	2/16	SYR4	2012–2019
Ethylene Dibromide	0.0270 µg/L 54% of the EPA limit 0.0500 µg/L	1/14	SYR4	2012–2017
Ethylbenzene	20 µg/L 2.9% of the EPA limit 700 µg/L	1/17	SYR4	2012–2019
Picloram	0.2000 µg/L 0% of the EPA limit 500 µg/L	1/12	SYR4	2012–2017
Selenium	9 µg/L 18% of the EPA limit 50 µg/L	1/8	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	2.1 µg/L 3.5% of the EPA limit 60 µg/L	1/7	SYR4	2012–2019
Trichloroacetic Acid	2.1 µg/L No EPA limit set	1/7	SYR4	2012–2019
Xylenes, Total	170 µg/L 1.7% of the EPA limit 10000 µg/L	1/17	SYR4	2012–2019

61 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEndothallEndrinGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: HERREN, ROBERT
Phone: 775-482-6643
Email: [email protected]

Frequently asked questions about Tonopah Public Utilities

Is Tonopah Public Utilities tap water safe to drink?

EPA monitoring detected 22 contaminants in Tonopah Public Utilities'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 Tonopah Public Utilities's water?

EPA monitoring detected Nitrate, Arsenic, Nitrate-Nitrite, Combined Uranium, Gross Beta Particle Activity, and others. The full list with the level and data source for each is above.

How many people does Tonopah Public Utilities serve?

Tonopah Public Utilities reports serving 2,853 people in Nevada, per its EPA record.

Has Tonopah Public Utilities had any water quality violations?

The EPA has 18 violations on file for Tonopah Public Utilities, of which 3 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.