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BRISTOL BAY NATIVE ASSOC.

PWS ID: AK2262902 · DILLINGHAM, Alaska 99576

BRISTOL BAY NATIVE ASSOC. serves 120 people in DILLINGHAM, Alaska using Groundwater water sources. It has 593 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: BRISTOL BAY NATIVE ASSOC.

BRISTOL BAY NATIVE ASSOC. is a native american-owned non-transient non-community water system that delivers drinking water to 120 residents in DILLINGHAM, Alaska (Dillingham Census Area County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 593 total violations for this system , of which 4 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 520 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 Coliform (TCR), recorded in 22 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Alaska, EPA tracks 1,326 public water systems serving 862,218 people, with 267,144 cumulative violations and 13,963 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 201.5 violations. BRISTOL BAY NATIVE ASSOC.'s 593 violations sit above the Alaska average. Statewide, 10 of 30 UCMR5-tested systems have reported PFAS detections (33.3%). 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
120
Total Violations
593
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
2
County
Dillingham Census Area
School/Daycare
No
MCL Violations
2
Monitoring Violations
520
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 22 2015
DICHLOROMETHANE MR 13 2001
1,2,4-Trichlorobenzene MR 13 2001
1,1,2-Trichloroethane MR 13 2001
Total Polychlorinated Biphenyls (PCB) MR 11 2010
Simazine MR 11 2010
Pentachlorophenol MR 11 2010
Heptachlor epoxide MR 11 2010
Heptachlor MR 11 2010
Diquat MR 11 2010
Dinoseb MR 11 2010
Chlordane MR 11 2010
Atrazine MR 11 2010
2,4-D MR 11 2010
Toxaphene MR 11 2010
BHC-GAMMA MR 11 2010
Methoxychlor MR 11 2010
Endrin MR 11 2010
Picloram MR 11 2010
2,4,5-TP MR 11 2010
ETHYLENE DIBROMIDE MR 11 2010
p-Dichlorobenzene MR 9 2001
1,1,1-Trichloroethane MR 9 2001
o-Dichlorobenzene MR 9 2001
CHLOROBENZENE MR 9 2001
Ethylbenzene MR 9 2001
1,2-Dichloropropane MR 9 2001
cis-1,2-Dichloroethylene MR 9 2001
Trichloroethylene MR 9 2001
1,2-Dichloroethane MR 9 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 BRISTOL BAY NATIVE ASSOC..

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 AK2262902 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Alaska Drinking Water Authority

Alaska'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 AK 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 Lead and Copper Rule MR 7 SDWIS / AK2262902 / 5000
2024 Revised Total Coliform Rule MON 4 SDWIS / AK2262902 / 8000
2020 Groundwater Rule TT 2 SDWIS / AK2262902 / 0700
2015 Coliform (TCR) MR 22 SDWIS / AK2262902 / 3100
2010 Total Polychlorinated Biphenyls (PCB) MR 11 SDWIS / AK2262902 / 2383
2010 Simazine MR 11 SDWIS / AK2262902 / 2037
2010 Pentachlorophenol MR 11 SDWIS / AK2262902 / 2326
2010 Heptachlor epoxide MR 11 SDWIS / AK2262902 / 2067
2010 Heptachlor MR 11 SDWIS / AK2262902 / 2065
2010 Diquat MR 11 SDWIS / AK2262902 / 2032
2010 Dinoseb MR 11 SDWIS / AK2262902 / 2041
2010 Chlordane MR 11 SDWIS / AK2262902 / 2959
2010 Atrazine MR 11 SDWIS / AK2262902 / 2050
2010 2,4-D MR 11 SDWIS / AK2262902 / 2105
2010 Toxaphene MR 11 SDWIS / AK2262902 / 2020

How BRISTOL BAY NATIVE ASSOC. Compares

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

Metric BRISTOL BAY NATIVE ASSOC. Alaska avg Federal benchmark
Total violations 593 201.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 120 650 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,326 regulated public water systems in Alaska.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is BRISTOL BAY NATIVE ASSOC. water safe to drink? ▼
BRISTOL BAY NATIVE ASSOC. (PWS ID: AK2262902) has 593 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 120 people using Groundwater sources.
How many people does BRISTOL BAY NATIVE ASSOC. serve? ▼
BRISTOL BAY NATIVE ASSOC. serves 120 people in DILLINGHAM, Alaska. It is a Native American-owned system using Groundwater water sources with 2 service connections.
What type of violations does BRISTOL BAY NATIVE ASSOC. have? ▼
BRISTOL BAY NATIVE ASSOC. has 593 total violations: 4 health-based violations (MCL exceedances or treatment failures), 520 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in BRISTOL BAY NATIVE ASSOC. water? ▼
No PFAS testing data is available for BRISTOL BAY NATIVE ASSOC. under the EPA's UCMR5 monitoring program.
What water source does BRISTOL BAY NATIVE ASSOC. use? ▼
BRISTOL BAY NATIVE ASSOC. uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.

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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.

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