PlainWater
States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 090600362

Washoe Tribe Woodfords

Gardnerville, EPA Region 9 — Tribal Water Systems 89410 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
199
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 199 drinking-water violations at Washoe Tribe Woodfords.

199
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Washoe Tribe Woodfords

Washoe Tribe Woodfords is a native american-owned community water system that delivers drinking water to 250 residents in Gardnerville, EPA Region 9 — Tribal Water Systems through 63 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 199 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 172 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 15 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
250
Total Violations
199
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
63
School/Daycare
No
MCL Violations
0
Monitoring Violations
172
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 15 2013
Arsenic MR 8 2023
Nitrate MR 7 2020
Barium MR 3 2020
Cadmium MR 3 2020
Chromium MR 3 2020
Fluoride MR 3 2020
Mercury MR 3 2020
Selenium MR 3 2020
Endrin MR 3 2005
BHC-GAMMA MR 3 2005
Methoxychlor MR 3 2005
Dalapon MR 3 2005
Diquat MR 3 2005
Endothall MR 3 2005
Glyphosate MR 3 2005
Di(2-ethylhexyl) adipate MR 3 2005
OXAMYL MR 3 2005
Simazine MR 3 2005
Di(2-ethylhexyl) phthalate MR 3 2005
Picloram MR 3 2005
Hexachlorocyclopentadiene MR 3 2005
Dinoseb MR 3 2005
Carbofuran MR 3 2005
Atrazine MR 3 2005
LASSO MR 3 2005
2,3,7,8-TCDD MR 3 2005
Heptachlor epoxide MR 3 2005
2,4-D MR 3 2005
2,4,5-TP MR 3 2005

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 Washoe Tribe Woodfords.

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 090600362 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
2023 Arsenic MR 8 SDWIS / 090600362 / 1005
2020 Nitrate MR 7 SDWIS / 090600362 / 1040
2020 Barium MR 3 SDWIS / 090600362 / 1010
2020 Cadmium MR 3 SDWIS / 090600362 / 1015
2020 Chromium MR 3 SDWIS / 090600362 / 1020
2020 Fluoride MR 3 SDWIS / 090600362 / 1025
2020 Mercury MR 3 SDWIS / 090600362 / 1035
2020 Selenium MR 3 SDWIS / 090600362 / 1045
2020 CYANIDE MR 2 SDWIS / 090600362 / 1024
2020 Antimony, Total MR 2 SDWIS / 090600362 / 1074
2020 Beryllium, Total MR 2 SDWIS / 090600362 / 1075
2020 Thallium, Total MR 2 SDWIS / 090600362 / 1085
2019 Revised Total Coliform Rule RPT 1 SDWIS / 090600362 / 8000
2013 Coliform (TCR) MR 15 SDWIS / 090600362 / 3100
2012 Consumer Confidence Rule Other 1 SDWIS / 090600362 / 7000

How Washoe Tribe Woodfords Compares

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

Metric Washoe Tribe Woodfords EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 199 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 - 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 Washoe Tribe Woodfords water safe to drink? ▼
Washoe Tribe Woodfords (PWS ID: 090600362) has 199 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Washoe Tribe Woodfords serve? ▼
Washoe Tribe Woodfords serves 250 people in Gardnerville, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 63 service connections.
What type of violations does Washoe Tribe Woodfords have? ▼
Washoe Tribe Woodfords has 199 total violations: 0 health-based violations (MCL exceedances or treatment failures), 172 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Washoe Tribe Woodfords water? ▼
No PFAS testing data is available for Washoe Tribe Woodfords under the EPA's UCMR5 monitoring program.
What water source does Washoe Tribe Woodfords use? ▼
Washoe Tribe Woodfords 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.