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Tap water quality report

Eureka Water Association

EPA monitoring tested this supplier for 83 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

83
contaminants tested
22
detected
450
people served
4
health-based violations
Nevada rankingsLead in NevadaPFAS in Nevada
Water source
Ground water
Ownership
Local government
Counties served
Eureka

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.

4
health-based violations
47
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2021-01-01 → 2021-03-31
MCL Health-based Resolved 2021-01-01 → 2021-03-31
MCL Health-based Resolved 2021-01-01 → 2021-03-31
MCL Health-based Archived 2000-09-01 → 2000-09-30
Other Monitoring Resolved 2024-10-01
Other Monitoring Resolved 2024-10-01
Other Monitoring Resolved 2024-10-01
MR Monitoring Resolved 2023-01-01 → 2023-12-31
MR Monitoring Resolved 2023-01-01 → 2023-12-31
MR Monitoring Resolved 2023-01-01 → 2023-12-31

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
Nitrate
1600 µg/L 16%
of the EPA limit 10000 µg/L
 58/64 SYR4 2012–2019
Arsenic
10 µg/L 100%
of the EPA limit 10 µg/L
 29/31 SYR4 2012–2019
Nitrate-Nitrite
1600 µg/L 16%
of the EPA limit 10000 µg/L
 16/18 SYR4 2012–2019
Fluoride
330 µg/L 8.3%
of the EPA limit 4000 µg/L
worst single sample: 400 µg/L
15/18 SYR4 2012–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Barium
238 µg/L 12%
of the EPA limit 2000 µg/L
worst single sample: 310 µg/L
13/13 SYR4 2012–2019
Copper
33.6 µg/L 2.6%
of the EPA limit 1300 µg/L
worst single sample: 50 µg/L
9/18 SYR4 2012–2019
Combined Uranium
2 µg/L 6.7%
of the EPA limit 30 µg/L
 9/9 SYR4 2013–2018
Chromium
2.65 µg/L 2.7%
of the EPA limit 100 µg/L
worst single sample: 3 µg/L
8/13 SYR4 2012–2019
Gross Beta Particle Activity
2.766 pCi/L
No EPA limit set
worst single sample: 3.2 pCi/L
8/8 SYR4 2013–2015
Combined Radium (-226 And -228)
0.7712 pCi/L 15%
of the EPA limit 5 pCi/L
worst single sample: 0.8370 pCi/L
6/6 SYR4 2015
Selenium
31.8 µg/L 64%
of the EPA limit 50 µg/L
worst single sample: 36 µg/L
5/13 SYR4 2012–2019
Bromoform
0.9375 µg/L
No EPA limit set
worst single sample: 0.9500 µg/L
2/6 SYR4 2012–2017
Cyanide
61.5 µg/L 31%
of the EPA limit 200 µg/L
worst single sample: 64 µg/L
2/13 SYR4 2012–2019
Dibromochloromethane
0.9400 µg/L
No EPA limit set
worst single sample: 0.9500 µg/L
2/6 SYR4 2012–2017
TTHM
2.495 µg/L 3.1%
of the EPA limit 80 µg/L
worst single sample: 2.55 µg/L
2/6 SYR4 2012–2017
Antimony, Total
2 µg/L 33%
of the EPA limit 6 µg/L
 1/13 SYR4 2012–2019
Bromodichloromethane
0.4600 µg/L
No EPA limit set
 1/6 SYR4 2012–2017
Chloroform
0.1900 µg/L
No EPA limit set
 1/6 SYR4 2012–2017
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 1/13 SYR4 2012–2019
Styrene
0.0740 µg/L 0.1%
of the EPA limit 100 µg/L
 1/21 SYR4 2013–2019
Thallium, Total
1 µg/L 50%
of the EPA limit 2 µg/L
 1/12 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-DAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineTetrachloroethyleneTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ROWLEY, JEB
Phone
775-237-5372
Email
[email protected]

Frequently asked questions about Eureka Water Association

Is Eureka Water Association tap water safe to drink?

EPA monitoring detected 22 contaminants in Eureka Water Association'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 Eureka Water Association's water?

EPA monitoring detected Nitrate, Arsenic, Nitrate-Nitrite, Fluoride, Lead, and others. The full list with the level and data source for each is above.

How many people does Eureka Water Association serve?

Eureka Water Association reports serving 450 people in Nevada, per its EPA record.

Has Eureka Water Association had any water quality violations?

The EPA has 47 violations on file for Eureka Water Association, of which 4 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.