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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 093200165

Ft. McDermitt Paiute-Shoshone - Lower

McDermitt, EPA Region 9 — Tribal Water Systems 89421 - drinking water served from groundwater sources to 456 people, tracked in EPA SDWIS and UCMR5.

456
People served
335
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 335 drinking-water violations at Ft. McDermitt Paiute-Shoshone - Lower, 4% of them health-based.

335
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
456
People served by this system
N/A
PFAS compounds detected (UCMR5)

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

Ft. McDermitt Paiute-Shoshone - Lower is a native american-owned community water system that delivers drinking water to 456 residents in McDermitt, EPA Region 9 — Tribal Water Systems through 103 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 335 total violations for this system , of which 12 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 239 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 96 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
456
Total Violations
335
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
103
School/Daycare
No
MCL Violations
8
Monitoring Violations
239
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 96 2012
Nitrate MR 15 2018
Coliform (TCR) MCL 8 2015
Consumer Confidence Rule Other 6 2020
Lead and Copper Rule MR 4 2020
Gross Alpha, Excl. Radon and U MR 3 2011
Public Notice Other 3 2019
Groundwater Rule TT 3 2020
LEAD AND COPPER RULE REVISIONS RPT 3 2024
Arsenic MR 2 2011
Barium MR 2 2014
CYANIDE MR 2 2014
Asbestos MR 2 2001
Endrin MR 2 2001
BHC-GAMMA MR 2 2001
Toxaphene MR 2 2001
Dalapon MR 2 2001
Diquat MR 2 2001
Endothall MR 2 2001
Glyphosate MR 2 2001
Di(2-ethylhexyl) adipate MR 2 2001
OXAMYL MR 2 2001
Simazine MR 2 2001
Di(2-ethylhexyl) phthalate MR 2 2001
Picloram MR 2 2001
Dinoseb MR 2 2001
Hexachlorocyclopentadiene MR 2 2001
Atrazine MR 2 2001
LASSO MR 2 2001
2,3,7,8-TCDD MR 2 2001

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 - Lower.

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 093200165 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
2024 LEAD AND COPPER RULE REVISIONS RPT 3 SDWIS / 093200165 / 5200
2020 Consumer Confidence Rule Other 6 SDWIS / 093200165 / 7000
2020 Lead and Copper Rule MR 4 SDWIS / 093200165 / 5000
2020 Groundwater Rule TT 3 SDWIS / 093200165 / 0700
2019 Public Notice Other 3 SDWIS / 093200165 / 7500
2019 Revised Total Coliform Rule MON 1 SDWIS / 093200165 / 8000
2019 Revised Total Coliform Rule TT 1 SDWIS / 093200165 / 8000
2018 Nitrate MR 15 SDWIS / 093200165 / 1040
2015 Coliform (TCR) MCL 8 SDWIS / 093200165 / 3100
2014 Barium MR 2 SDWIS / 093200165 / 1010
2014 CYANIDE MR 2 SDWIS / 093200165 / 1024
2014 1,2,4-Trichlorobenzene MR 2 SDWIS / 093200165 / 2378
2014 cis-1,2-Dichloroethylene MR 2 SDWIS / 093200165 / 2380
2014 Xylenes, Total MR 2 SDWIS / 093200165 / 2955
2014 DICHLOROMETHANE MR 2 SDWIS / 093200165 / 2964

How Ft. McDermitt Paiute-Shoshone - Lower Compares

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

Metric Ft. McDermitt Paiute-Shoshone - Lower EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 335 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 456 - 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 - Lower water safe to drink? ▼
Ft. McDermitt Paiute-Shoshone - Lower (PWS ID: 093200165) has 335 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 456 people using Groundwater sources.
How many people does Ft. McDermitt Paiute-Shoshone - Lower serve? ▼
Ft. McDermitt Paiute-Shoshone - Lower serves 456 people in McDermitt, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 103 service connections.
What type of violations does Ft. McDermitt Paiute-Shoshone - Lower have? ▼
Ft. McDermitt Paiute-Shoshone - Lower has 335 total violations: 12 health-based violations (MCL exceedances or treatment failures), 239 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ft. McDermitt Paiute-Shoshone - Lower water? ▼
No PFAS testing data is available for Ft. McDermitt Paiute-Shoshone - Lower under the EPA's UCMR5 monitoring program.
What water source does Ft. McDermitt Paiute-Shoshone - Lower use? ▼
Ft. McDermitt Paiute-Shoshone - Lower 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.