Public water system · AK2261444
ActiveChignik Lagoon Water System
At a glance
Chignik Lagoon Water System (PWSID AK2261444) is an active community water system in Lake and Peninsula Borough County, Alaska. It reports serving 273 people through 83 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
273
Service connections
83
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Chignik Lagoon Water System compare with other water systems in Lake and Peninsula Borough County?
By EPA's size categories, Chignik Lagoon Water System is a very small system (500 people or fewer). Lake and Peninsula Borough County has 15 active public water systems, and Chignik Lagoon Water System is the 2nd-largest of them by population served. Its population served is about 86% above the county average of 147 people per system, and accounts for 12% of the 2,205 people reported by systems filed under the county. Across Alaska, the 1,322 active systems average 653 people each. Nationally, the average active community water system reports serving 6,703 people, so Chignik Lagoon Water System is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Alaska has 406 active community water systems, 31% of the state's 1,322 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,054 Alaska systems (80%) list groundwater as their primary source.
Who owns and regulates Chignik Lagoon Water System?
EPA lists Chignik Lagoon Water System as Native American-owned. The AK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 15 active systems in Lake and Peninsula Borough County (60%) are also Native American-owned.
Does Chignik Lagoon Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. The violations listed here began between July 2023 and January 2026. By type: 7 monitoring and reporting and 5 monitoring. The contaminant or rule involved most often is Chlorine (6 of them). EPA lists 11 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2025-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2023-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Chignik Lagoon Water System: frequently asked questions
Who runs Chignik Lagoon Water System?
Chignik Lagoon Water System (PWSID AK2261444) is a community water system Native American-owned. It is regulated by the AK state drinking water program.
How many people does Chignik Lagoon Water System serve?
Chignik Lagoon Water System reports serving 273 people through 83 service connections in Lake and Peninsula Borough County, Alaska.
Where does Chignik Lagoon Water System get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Chignik Lagoon Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Chignik Lagoon Water System's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.
Where can I find Chignik Lagoon Water System's water quality report?
As a community water system, Chignik Lagoon Water System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Lake and Peninsula Borough County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Egegik | Lake and Peninsula Borough | 485 | Community | Groundwater |
| Nondalton | Lake and Peninsula Borough | 205 | Community | Surface water |
| Chignik Lake Water System | Lake and Peninsula Borough | 200 | Community | Groundwater |
| Chignik Bay Water System | Lake and Peninsula Borough | 199 | Community | Surface water |
| Kokhanok Water & Ww System | Lake and Peninsula Borough | 160 | Community | Surface water |
| Tanalian Bible Camp | Lake and Peninsula Borough | 103 | Transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Chignik Lagoon Water System, PWSID AK2261444, Alaska”, https://aquacensus.com/water-systems/alaska/chignik-lagoon-water-system-ak2261444 (data as of October 1, 2026).