States ›Oregon ›Jefferson County ›Warm Springs

Warm Springs, OR Tap Water Quality 2026

Water quality report for Warm Springs, OR — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Warm Springs's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Warm Springs Water Treatment Plant PWSID: 104101247 Updated: 2026 Q2
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9 violations currently open

Lead is 14.00 ppb, 93% of the action level. No PFAS was detected.

F

Warm Springs earns an F for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 14.00 ppb — 93% of the federal action level
PFAS tested, none detected
334 violations since 2015, 38 health-based
9 violations currently open
Warm Springs's lead level vs. all Oregon community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 14.00 ppb — 93% of the federal action level
✓ Lower lead than 0% of Oregon utilities
Population Served
598
~1366 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
9
9 open of 334 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
93% of EPA action level
14.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 14.00 ppb, 93% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
CARBON, TOTAL MONITORING AND REPORTING — TT 2026 Archived
CARBON, TOTAL MONITORING AND REPORTING — TT 2026 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2026 Unaddressed
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2026 Unaddressed
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Unaddressed
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Unaddressed
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2025 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2025 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2025 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2025 Archived
Barium MONITORING AND REPORTING — 2 mg/L 2025 Archived
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Chromium MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2025 Archived
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2025 Archived
Mercury MONITORING AND REPORTING — 0.002 mg/L 2025 Archived
Nickel MONITORING AND REPORTING — — 2025 Archived
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2025 Archived
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2025 Archived
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2025 Archived
Selenium MONITORING AND REPORTING — 0.05 mg/L 2025 Archived
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2025 Archived
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2025 Archived
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2025 Archived
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2025 Archived
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2025 Archived
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2025 Archived
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2025 Archived
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2025 Archived
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
Benzene MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Toluene MONITORING AND REPORTING — 1 mg/L 2025 Archived
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2025 Archived
Styrene MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
Public Notice OTHER — — 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Archived
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2024 Archived
Barium MONITORING AND REPORTING — 2 mg/L 2024 Archived
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
Chromium MONITORING AND REPORTING — 0.1 mg/L 2024 Archived
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2024 Archived
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2024 Archived
Mercury MONITORING AND REPORTING — 0.002 mg/L 2024 Archived
Nickel MONITORING AND REPORTING — — 2024 Archived
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2024 Archived
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2024 Archived
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2024 Archived
Selenium MONITORING AND REPORTING — 0.05 mg/L 2024 Archived
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2024 Archived
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2024 Archived
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2024 Archived
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2024 Archived
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2024 Archived
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2024 Archived
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2024 Archived
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2024 Archived
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2024 Archived
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2024 Archived
Benzene MONITORING AND REPORTING — 0.005 mg/L 2024 Archived
Toluene MONITORING AND REPORTING — 1 mg/L 2024 Archived
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2024 Archived
Styrene MONITORING AND REPORTING — 0.1 mg/L 2024 Archived
Nitrate MONITORING AND REPORTING — 10 mg/L 2024 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2023 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2023 Resolved
Consumer Confidence Rule OTHER — — 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2023 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2023 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
Nickel MONITORING AND REPORTING — — 2023 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2023 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2023 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2023 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2023 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2023 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2023 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2023 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2023 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2023 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2023 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2023 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2023 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2023 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2023 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2023–2025 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2023–2025 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2023–2025 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2023–2025 Archived
Endothall MONITORING AND REPORTING — 0.1 mg/L 2023–2025 Archived
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2023–2025 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2023–2025 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2023–2025 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2023–2025 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2023–2025 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2023–2025 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2023–2025 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2023–2025 Archived
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2023–2025 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2023–2025 Archived
LASSO MONITORING AND REPORTING — — 2023–2025 Archived
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2023–2025 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2023–2025 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2023–2025 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2023–2025 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2023–2025 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2023–2025 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2023–2025 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2023–2025 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Consumer Confidence Rule OTHER — — 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2022 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2022 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2022 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2022 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2022 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2022 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2022 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2022 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2022 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2022 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2022 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2022 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2022 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2022 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2022 Resolved
Nickel MONITORING AND REPORTING — — 2022 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2022 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2022 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2022 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2022 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2021 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2021 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2021 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2021 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2021 Resolved
Nickel MONITORING AND REPORTING — — 2021 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2021 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2021 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2021 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2021 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2021 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2021 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2021 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2021 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2021 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2021 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2021 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2021 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2021 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2021 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2021 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2021 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2021 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2021 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2020 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2020 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2020–2022 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2020–2022 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2020–2022 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2020–2022 Resolved
Endothall MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2020–2022 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2020–2022 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2020–2022 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2020–2022 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2020–2022 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2020–2022 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2020–2022 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2020–2022 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2020–2022 Resolved
LASSO MONITORING AND REPORTING — — 2020–2022 Resolved
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2020–2022 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2020–2022 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2020–2022 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2020–2022 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2020–2022 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2020–2022 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2020–2022 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2020–2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2020–2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2020–2025 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2019 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
Consumer Confidence Rule OTHER — — 2015 Resolved
Consumer Confidence Rule OTHER — — 2015 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

9 violations remain open, out of 334 recorded since 2015 (38 health-based).

About the Main Water System

Utility Warm Springs Water Treatment Plant
PWSID 104101247
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 598
Service connections 1,366
Systems serving this area 1
Regulator US EPA (tribal primacy)
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Warm Springs tap water safe to drink? ▼
No federal limit is exceeded on record. 9 violation(s) remain open. Lead is 14.00 ppb, 93% of the action level.
Does Warm Springs water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Warm Springs? ▼
Warm Springs Water Treatment Plant (PWSID 104101247). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-03-26. Inspectors recorded 4 significant deficiencies.

What Should Warm Springs Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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