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Community Water System · PWS AK2272752

Old Kasigluk - Akiuk

Kasigluk, Alaska 99609 - drinking water served from groundwater sources to 240 people, tracked in EPA SDWIS and UCMR5.

240
People served
228
EPA violations
11
Health-based
Untested
UCMR5 result

The verdict

EPA records 228 drinking-water violations at Old Kasigluk - Akiuk, 5% of them health-based - above the Alaska per-system average.

228
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
240
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Old Kasigluk - Akiuk

Old Kasigluk - Akiuk is a native american-owned community water system that delivers drinking water to 240 residents in Kasigluk, Alaska (Bethel Census Area County) through 4 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 228 total violations for this system , of which 11 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 154 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 Revised Total Coliform Rule, recorded in 46 violations (MON). 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%).

Old Kasigluk - Akiuk's 228 violations sit above 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
240
Total Violations
228
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
4
County
Bethel Census Area
School/Daycare
No
MCL Violations
0
Monitoring Violations
154
Treatment Tech Violations
11

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 46 2025
Chlorine MR 21 2025
Groundwater Rule TT 11 2023
Lead and Copper Rule MR 10 2023
Arsenic MR 8 2016
Nitrate MR 8 2024
Combined Radium (-226 and -228) MR 7 2017
Consumer Confidence Rule Other 5 2022
Coliform (TCR) MR 5 2015
TTHM MR 3 2022
Total Haloacetic Acids (HAA5) MR 3 2022
Barium MR 2 2020
Chromium MR 2 2020
Mercury MR 2 2020
Nickel MR 2 2020
Thallium, Total MR 2 2020
Cadmium MR 2 2020
Fluoride MR 2 2020
Selenium MR 2 2020
Groundwater Rule Other 2 2025
CYANIDE MR 2 2020
Beryllium, Total MR 2 2020
Antimony, Total MR 2 2020
Revised Total Coliform Rule Other 1 2016
1,2,4-Trichlorobenzene MR 1 2014
DICHLOROMETHANE MR 1 2014
o-Dichlorobenzene MR 1 2014
p-Dichlorobenzene MR 1 2014
Vinyl chloride MR 1 2014
trans-1,2-Dichloroethylene MR 1 2014

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 Old Kasigluk - Akiuk.

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 AK2272752 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 Revised Total Coliform Rule MON 46 SDWIS / AK2272752 / 8000
2025 Chlorine MR 21 SDWIS / AK2272752 / 0999
2025 Groundwater Rule Other 2 SDWIS / AK2272752 / 0700
2024 Nitrate MR 8 SDWIS / AK2272752 / 1040
2023 Groundwater Rule TT 11 SDWIS / AK2272752 / 0700
2023 Lead and Copper Rule MR 10 SDWIS / AK2272752 / 5000
2022 Consumer Confidence Rule Other 5 SDWIS / AK2272752 / 7000
2022 TTHM MR 3 SDWIS / AK2272752 / 2950
2022 Total Haloacetic Acids (HAA5) MR 3 SDWIS / AK2272752 / 2456
2020 Barium MR 2 SDWIS / AK2272752 / 1010
2020 Chromium MR 2 SDWIS / AK2272752 / 1020
2020 Mercury MR 2 SDWIS / AK2272752 / 1035
2020 Nickel MR 2 SDWIS / AK2272752 / 1036
2020 Thallium, Total MR 2 SDWIS / AK2272752 / 1085
2020 Cadmium MR 2 SDWIS / AK2272752 / 1015

How Old Kasigluk - Akiuk Compares

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

Metric Old Kasigluk - Akiuk Alaska avg Federal benchmark
Total violations 228 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 11 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 240 650 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 Old Kasigluk - Akiuk water safe to drink? ▼
Old Kasigluk - Akiuk (PWS ID: AK2272752) has 228 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 240 people using Groundwater sources.
How many people does Old Kasigluk - Akiuk serve? ▼
Old Kasigluk - Akiuk serves 240 people in Kasigluk, Alaska. It is a Native American-owned system using Groundwater water sources with 4 service connections.
What type of violations does Old Kasigluk - Akiuk have? ▼
Old Kasigluk - Akiuk has 228 total violations: 11 health-based violations (MCL exceedances or treatment failures), 154 monitoring/reporting violations, and 11 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Old Kasigluk - Akiuk water? ▼
No PFAS testing data is available for Old Kasigluk - Akiuk under the EPA's UCMR5 monitoring program.
What water source does Old Kasigluk - Akiuk use? ▼
Old Kasigluk - Akiuk 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.