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Non-Transient Non-Community Water System · PWS AK2220118

Three Bears Store 60 - 4 Corners

Wasilla, Alaska 99623 - drinking water served from groundwater sources to 590 people, tracked in EPA SDWIS and UCMR5.

590
People served
83
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 83 drinking-water violations at Three Bears Store 60 - 4 Corners, 7% of them health-based - below the Alaska per-system average.

83
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
590
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Three Bears Store 60 - 4 Corners

Three Bears Store 60 - 4 Corners is a private-owned non-transient non-community water system that delivers drinking water to 590 residents in Wasilla, Alaska (Matanuska-Susitna Borough County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 83 total violations for this system , of which 6 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 64 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 20 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. Statewide, 10 of 30 UCMR5-tested systems have reported PFAS detections (33.3%).

Three Bears Store 60 - 4 Corners's 83 violations sit below the Alaska average.

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
590
Total Violations
83
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Matanuska-Susitna Borough
School/Daycare
No
MCL Violations
6
Monitoring Violations
64
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 20 2014
Coliform (TCR) MCL 6 2010
Xylenes, Total MR 2 2006
o-Dichlorobenzene MR 2 2006
Vinyl chloride MR 2 2006
1,1-Dichloroethylene MR 2 2006
trans-1,2-Dichloroethylene MR 2 2006
1,1,1-Trichloroethane MR 2 2006
Carbon tetrachloride MR 2 2006
Tetrachloroethylene MR 2 2006
CHLOROBENZENE MR 2 2006
Ethylbenzene MR 2 2006
1,2,4-Trichlorobenzene MR 2 2006
Toluene MR 2 2006
Benzene MR 2 2006
DICHLOROMETHANE MR 2 2006
Styrene MR 2 2006
cis-1,2-Dichloroethylene MR 2 2006
p-Dichlorobenzene MR 2 2006
1,1,2-Trichloroethane MR 2 2006
1,2-Dichloroethane MR 2 2006
1,2-Dichloropropane MR 2 2006
Trichloroethylene MR 2 2006
Chlorine MR 1 2019
Lead and Copper Rule MR 1 2021

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 Three Bears Store 60 - 4 Corners.

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 AK2220118 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
2021 Lead and Copper Rule MR 1 SDWIS / AK2220118 / 5000
2019 Chlorine MR 1 SDWIS / AK2220118 / 0999
2014 Coliform (TCR) MR 20 SDWIS / AK2220118 / 3100
2010 Coliform (TCR) MCL 6 SDWIS / AK2220118 / 3100
2006 Xylenes, Total MR 2 SDWIS / AK2220118 / 2955
2006 o-Dichlorobenzene MR 2 SDWIS / AK2220118 / 2968
2006 Vinyl chloride MR 2 SDWIS / AK2220118 / 2976
2006 1,1-Dichloroethylene MR 2 SDWIS / AK2220118 / 2977
2006 trans-1,2-Dichloroethylene MR 2 SDWIS / AK2220118 / 2979
2006 1,1,1-Trichloroethane MR 2 SDWIS / AK2220118 / 2981
2006 Carbon tetrachloride MR 2 SDWIS / AK2220118 / 2982
2006 Tetrachloroethylene MR 2 SDWIS / AK2220118 / 2987
2006 CHLOROBENZENE MR 2 SDWIS / AK2220118 / 2989
2006 Ethylbenzene MR 2 SDWIS / AK2220118 / 2992
2006 1,2,4-Trichlorobenzene MR 2 SDWIS / AK2220118 / 2378

How Three Bears Store 60 - 4 Corners Compares

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

Metric Three Bears Store 60 - 4 Corners Alaska avg Federal benchmark
Total violations 83 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 590 650 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 (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 Three Bears Store 60 - 4 Corners water safe to drink? ▼
Three Bears Store 60 - 4 Corners (PWS ID: AK2220118) has 83 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 590 people using Groundwater sources.
How many people does Three Bears Store 60 - 4 Corners serve? ▼
Three Bears Store 60 - 4 Corners serves 590 people in Wasilla, Alaska. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Three Bears Store 60 - 4 Corners have? ▼
Three Bears Store 60 - 4 Corners has 83 total violations: 6 health-based violations (MCL exceedances or treatment failures), 64 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Three Bears Store 60 - 4 Corners water? ▼
No PFAS testing data is available for Three Bears Store 60 - 4 Corners under the EPA's UCMR5 monitoring program.
What water source does Three Bears Store 60 - 4 Corners use? ▼
Three Bears Store 60 - 4 Corners 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.
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.