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Tap water quality report

Washoe Tribe Stewart

EPA monitoring tested this supplier for 71 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
7
detected
150
people served
1
health-based violations
Nevada rankingsLead in NevadaPFAS in Nevada
Water source
Ground water
Ownership
Native American

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.

1
health-based violations
142
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2022-10-20
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
Other Monitoring Resolved 2019-12-01
MON Monitoring Resolved 2019-12-01 → 2019-12-31
Other Monitoring Resolved 2016-04-01
MR Monitoring Resolved 2013-10-01
MR Monitoring Resolved 2013-03-01 → 2013-03-31
Other Monitoring Resolved 2012-07-01

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
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 24/24 LCR 2025
Barium
90 µg/L 4.5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Combined Uranium
3 µg/L 10%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2019
Gross Alpha, Excl. Radon And U
2.79 pCi/L 19%
of the EPA limit 15 pCi/L
 1/1 SYR4 2016
Methoxychlor
0.1000 µg/L 0.3%
of the EPA limit 40 µg/L
 1/2 SYR4 2016–2019
TTHM
2.4 µg/L 3%
of the EPA limit 80 µg/L
 1/5 SYR4 2012–2019
64 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryNitrateNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Serrell Smokey
Phone
7752658600
Email
[email protected]

Frequently asked questions about Washoe Tribe Stewart

Is Washoe Tribe Stewart tap water safe to drink?

EPA monitoring detected 7 contaminants in Washoe Tribe Stewart'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 Washoe Tribe Stewart's water?

EPA monitoring detected Lead, Barium, Combined Uranium, Fluoride, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.

How many people does Washoe Tribe Stewart serve?

Washoe Tribe Stewart reports serving 150 people in Nevada, per its EPA record.

Has Washoe Tribe Stewart had any water quality violations?

The EPA has 142 violations on file for Washoe Tribe Stewart, of which 1 is health-based (a contaminant limit or required treatment was breached) and 1 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.