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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 090600134

Yurok - Wautec

Klamath, EPA Region 9 — Tribal Water Systems 95548 - drinking water served from surface water sources to 96 people, tracked in EPA SDWIS and UCMR5.

96
People served
525
EPA violations
36
Health-based
Untested
UCMR5 result

The verdict

EPA records 525 drinking-water violations at Yurok - Wautec, 7% of them health-based.

525
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
96
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Yurok - Wautec

Yurok - Wautec is a native american-owned community water system that delivers drinking water to 96 residents in Klamath, EPA Region 9 — Tribal Water Systems through 15 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 525 total violations for this system , of which 36 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 390 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 Surface Water Treatment Rule, recorded in 127 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
96
Total Violations
525
Health-Based Violations
36
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Native American
Connections
15
School/Daycare
No
MCL Violations
14
Monitoring Violations
390
Treatment Tech Violations
22

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 127 2025
Coliform (TCR) MR 44 2002
Surface Water Treatment Rule TT 17 2019
Coliform (TCR) MCL 14 2001
Nitrate MR 7 2009
Consumer Confidence Rule Other 5 2024
Arsenic MR 4 2004
Barium MR 4 2004
Cadmium MR 4 2004
Chromium MR 4 2004
Fluoride MR 4 2004
Mercury MR 4 2004
Selenium MR 4 2004
Hexachlorocyclopentadiene MR 4 2004
HEXACHLOROBENZENE MR 4 2004
Combined Radium (-226 and -228) MR 4 2008
CYANIDE MR 3 2004
Antimony, Total MR 3 2004
Beryllium, Total MR 3 2004
Thallium, Total MR 3 2004
Endrin MR 3 2004
BHC-GAMMA MR 3 2004
Toxaphene MR 3 2004
Dalapon MR 3 2004
Diquat MR 3 2004
Endothall MR 3 2004
Glyphosate MR 3 2004
Di(2-ethylhexyl) adipate MR 3 2004
OXAMYL MR 3 2004
Simazine MR 3 2004

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 Yurok - Wautec.

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 090600134 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 Surface Water Treatment Rule MR 127 SDWIS / 090600134 / 0200
2025 Interim Enhanced Surface Water Treatment Rule TT 3 SDWIS / 090600134 / 0300
2024 Consumer Confidence Rule Other 5 SDWIS / 090600134 / 7000
2023 Revised Total Coliform Rule MON 2 SDWIS / 090600134 / 8000
2023 Chlorine MR 2 SDWIS / 090600134 / 0999
2019 Surface Water Treatment Rule TT 17 SDWIS / 090600134 / 0200
2018 Lead and Copper Rule MR 3 SDWIS / 090600134 / 5000
2018 Lead and Copper Rule TT 1 SDWIS / 090600134 / 5000
2018 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 1 SDWIS / 090600134 / 0400
2009 Nitrate MR 7 SDWIS / 090600134 / 1040
2008 Combined Radium (-226 and -228) MR 4 SDWIS / 090600134 / 4010
2008 Gross Alpha, Excl. Radon and U MR 3 SDWIS / 090600134 / 4000
2008 Combined Uranium MR 3 SDWIS / 090600134 / 4006
2004 Arsenic MR 4 SDWIS / 090600134 / 1005
2004 Barium MR 4 SDWIS / 090600134 / 1010

How Yurok - Wautec Compares

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

Metric Yurok - Wautec EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 525 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 96 - 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 Yurok - Wautec water safe to drink? ▼
Yurok - Wautec (PWS ID: 090600134) has 525 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 96 people using Surface Water sources.
How many people does Yurok - Wautec serve? ▼
Yurok - Wautec serves 96 people in Klamath, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Surface Water water sources with 15 service connections.
What type of violations does Yurok - Wautec have? ▼
Yurok - Wautec has 525 total violations: 36 health-based violations (MCL exceedances or treatment failures), 390 monitoring/reporting violations, and 22 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Yurok - Wautec water? ▼
No PFAS testing data is available for Yurok - Wautec under the EPA's UCMR5 monitoring program.
What water source does Yurok - Wautec use? ▼
Yurok - Wautec uses Surface Water 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.