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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 093200164

Ft. McDermitt Paiute-Shoshone - Upper

McDermitt, EPA Region 9 — Tribal Water Systems 89421 - drinking water served from groundwater sources to 110 people, tracked in EPA SDWIS and UCMR5.

110
People served
478
EPA violations
17
Health-based
Untested
UCMR5 result

The verdict

EPA records 478 drinking-water violations at Ft. McDermitt Paiute-Shoshone - Upper, 4% of them health-based.

478
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
110
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ft. McDermitt Paiute-Shoshone - Upper

Ft. McDermitt Paiute-Shoshone - Upper is a native american-owned community water system that delivers drinking water to 110 residents in McDermitt, EPA Region 9 — Tribal Water Systems through 39 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 478 total violations for this system , of which 17 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 371 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 105 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 9 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
110
Total Violations
478
Health-Based Violations
17
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
39
School/Daycare
No
MCL Violations
11
Monitoring Violations
371
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 105 2014
Nitrate MR 17 2018
Coliform (TCR) MCL 9 2015
1,2,4-Trichlorobenzene MR 6 2014
cis-1,2-Dichloroethylene MR 6 2014
DICHLOROMETHANE MR 6 2014
o-Dichlorobenzene MR 6 2014
p-Dichlorobenzene MR 6 2014
Vinyl chloride MR 6 2014
1,1-Dichloroethylene MR 6 2014
trans-1,2-Dichloroethylene MR 6 2014
1,2-Dichloroethane MR 6 2014
1,1,1-Trichloroethane MR 6 2014
Carbon tetrachloride MR 6 2014
1,2-Dichloropropane MR 6 2014
Trichloroethylene MR 6 2014
1,1,2-Trichloroethane MR 6 2014
Tetrachloroethylene MR 6 2014
CHLOROBENZENE MR 6 2014
Benzene MR 6 2014
Toluene MR 6 2014
Ethylbenzene MR 6 2014
Styrene MR 6 2014
Gross Alpha, Excl. Radon and U MR 6 2014
Consumer Confidence Rule Other 6 2020
Xylenes, Total MR 6 2014
Combined Radium (-226 and -228) MR 5 2014
Groundwater Rule TT 5 2023
Arsenic MR 4 2014
2,3,7,8-TCDD MR 4 2013

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Ft. McDermitt Paiute-Shoshone - Upper.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID 093200164 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 9 — Tribal Water Systems Drinking Water Authority

EPA Region 9 — Tribal Water Systems's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 09 regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Revised Total Coliform Rule MCL 2 SDWIS / 093200164 / 8000
2024 LEAD AND COPPER RULE REVISIONS RPT 3 SDWIS / 093200164 / 5200
2023 Groundwater Rule TT 5 SDWIS / 093200164 / 0700
2021 Public Notice Other 3 SDWIS / 093200164 / 7500
2020 Consumer Confidence Rule Other 6 SDWIS / 093200164 / 7000
2020 Lead and Copper Rule MR 4 SDWIS / 093200164 / 5000
2020 Revised Total Coliform Rule TT 1 SDWIS / 093200164 / 8000
2019 Revised Total Coliform Rule MON 1 SDWIS / 093200164 / 8000
2018 Nitrate MR 17 SDWIS / 093200164 / 1040
2017 E. COLI MR 4 SDWIS / 093200164 / 3014
2015 Coliform (TCR) MCL 9 SDWIS / 093200164 / 3100
2014 Coliform (TCR) MR 105 SDWIS / 093200164 / 3100
2014 1,2,4-Trichlorobenzene MR 6 SDWIS / 093200164 / 2378
2014 cis-1,2-Dichloroethylene MR 6 SDWIS / 093200164 / 2380
2014 DICHLOROMETHANE MR 6 SDWIS / 093200164 / 2964

How Ft. McDermitt Paiute-Shoshone - Upper Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Ft. McDermitt Paiute-Shoshone - Upper EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 478 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 17 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 110 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 9 — Tribal Water Systems.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Ft. McDermitt Paiute-Shoshone - Upper water safe to drink? ▼
Ft. McDermitt Paiute-Shoshone - Upper (PWS ID: 093200164) has 478 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 110 people using Groundwater sources.
How many people does Ft. McDermitt Paiute-Shoshone - Upper serve? ▼
Ft. McDermitt Paiute-Shoshone - Upper serves 110 people in McDermitt, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 39 service connections.
What type of violations does Ft. McDermitt Paiute-Shoshone - Upper have? ▼
Ft. McDermitt Paiute-Shoshone - Upper has 478 total violations: 17 health-based violations (MCL exceedances or treatment failures), 371 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ft. McDermitt Paiute-Shoshone - Upper water? ▼
No PFAS testing data is available for Ft. McDermitt Paiute-Shoshone - Upper under the EPA's UCMR5 monitoring program.
What water source does Ft. McDermitt Paiute-Shoshone - Upper use? ▼
Ft. McDermitt Paiute-Shoshone - Upper uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.