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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 090605119

Bear River - Tish Non Village

Loleta, EPA Region 9 — Tribal Water Systems 95551 - drinking water served from groundwater sources to 650 people, tracked in EPA SDWIS and UCMR5.

650
People served
35
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 35 drinking-water violations at Bear River - Tish Non Village.

35
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
650
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bear River - Tish Non Village

Bear River - Tish Non Village is a native american-owned community water system that delivers drinking water to 650 residents in Loleta, EPA Region 9 — Tribal Water Systems through 56 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 35 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 35 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 Chlorine, recorded in 5 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
650
Total Violations
35
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
56
School/Daycare
No
MCL Violations
0
Monitoring Violations
35
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 5 2025
Total Haloacetic Acids (HAA5) MR 2 2021
TTHM MR 2 2021
1,2,4-Trichlorobenzene MR 1 2013
cis-1,2-Dichloroethylene MR 1 2013
Xylenes, Total MR 1 2013
Vinyl chloride MR 1 2013
1,1-Dichloroethylene MR 1 2013
trans-1,2-Dichloroethylene MR 1 2013
Carbon tetrachloride MR 1 2013
Trichloroethylene MR 1 2013
1,1,2-Trichloroethane MR 1 2013
Tetrachloroethylene MR 1 2013
Benzene MR 1 2013
Gross Alpha, Excl. Radon and U MR 1 2013
Gross Beta Particle Activity MR 1 2013
DICHLOROMETHANE MR 1 2013
1,2-Dichloropropane MR 1 2013
p-Dichlorobenzene MR 1 2013
Toluene MR 1 2013
1,1,1-Trichloroethane MR 1 2013
Styrene MR 1 2013
Combined Uranium MR 1 2013
o-Dichlorobenzene MR 1 2013
CHLOROBENZENE MR 1 2013
Ethylbenzene MR 1 2013
1,2-Dichloroethane MR 1 2013
Nitrate MR 1 2013
Combined Radium (-226 and -228) MR 1 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 Bear River - Tish Non Village.

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 090605119 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 Chlorine MR 5 SDWIS / 090605119 / 0999
2021 Total Haloacetic Acids (HAA5) MR 2 SDWIS / 090605119 / 2456
2021 TTHM MR 2 SDWIS / 090605119 / 2950
2013 1,2,4-Trichlorobenzene MR 1 SDWIS / 090605119 / 2378
2013 cis-1,2-Dichloroethylene MR 1 SDWIS / 090605119 / 2380
2013 Xylenes, Total MR 1 SDWIS / 090605119 / 2955
2013 Vinyl chloride MR 1 SDWIS / 090605119 / 2976
2013 1,1-Dichloroethylene MR 1 SDWIS / 090605119 / 2977
2013 trans-1,2-Dichloroethylene MR 1 SDWIS / 090605119 / 2979
2013 Carbon tetrachloride MR 1 SDWIS / 090605119 / 2982
2013 Trichloroethylene MR 1 SDWIS / 090605119 / 2984
2013 1,1,2-Trichloroethane MR 1 SDWIS / 090605119 / 2985
2013 Tetrachloroethylene MR 1 SDWIS / 090605119 / 2987
2013 Benzene MR 1 SDWIS / 090605119 / 2990
2013 Gross Alpha, Excl. Radon and U MR 1 SDWIS / 090605119 / 4000

How Bear River - Tish Non Village Compares

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

Metric Bear River - Tish Non Village EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 35 - 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 650 - 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 Bear River - Tish Non Village water safe to drink? ▼
Bear River - Tish Non Village (PWS ID: 090605119) has 35 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 650 people using Groundwater sources.
How many people does Bear River - Tish Non Village serve? ▼
Bear River - Tish Non Village serves 650 people in Loleta, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 56 service connections.
What type of violations does Bear River - Tish Non Village have? ▼
Bear River - Tish Non Village has 35 total violations: 0 health-based violations (MCL exceedances or treatment failures), 35 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bear River - Tish Non Village water? ▼
No PFAS testing data is available for Bear River - Tish Non Village under the EPA's UCMR5 monitoring program.
What water source does Bear River - Tish Non Village use? ▼
Bear River - Tish Non Village 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.