Public water system · AK2300214
ActiveAmbler Community Water System
At a glance
Ambler Community Water System (PWSID AK2300214) is an active community water system in Northwest Arctic Borough County, Alaska. It reports serving 261 people through 70 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, one is health-based, and the most recent began in March 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
261
Service connections
70
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ambler Community Water System compare with other water systems in Northwest Arctic Borough County?
By EPA's size categories, Ambler Community Water System is a very small system (500 people or fewer). Northwest Arctic Borough County has 16 active public water systems. Its population served is about half of the county average of 555 people per system, and accounts for 2.9% of the 8,887 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 Ambler Community 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 Ambler Community Water System?
EPA lists Ambler Community 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. 11 of the 16 active systems in Northwest Arctic Borough County (69%) are also Native American-owned.
Does Ambler Community Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in March 2026. The violations listed here began between April 2024 and March 2026. By type: 6 monitoring, 2 public notice, recordkeeping or other, 2 monitoring and reporting, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (6 of them). EPA lists 6 as resolved, 4 as archived and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2026-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2026-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-04-09 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Ambler Community Water System: frequently asked questions
Who runs Ambler Community Water System?
Ambler Community Water System (PWSID AK2300214) is a community water system Native American-owned. It is regulated by the AK state drinking water program.
How many people does Ambler Community Water System serve?
Ambler Community Water System reports serving 261 people through 70 service connections in Northwest Arctic Borough County, Alaska.
Where does Ambler Community 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 Ambler Community Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in March 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 Ambler Community 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, one is health-based, and the most recent began in March 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 Ambler Community Water System's water quality report?
As a community water system, Ambler Community 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 Northwest Arctic Borough County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kotzebue Mun. Water System | Northwest Arctic Borough | 3,234 | Community | Surface water |
| Selawik Safewater Facility | Northwest Arctic Borough | 846 | Community | Surface water |
| Noorvik Water System | Northwest Arctic Borough | 735 | Community | Surface water |
| Buckland Water System | Northwest Arctic Borough | 600 | Community | Surface water |
| Teck Alaska Red Dog Mine Pac | Northwest Arctic Borough | 517 | Non-transient non-community | Surface water |
| Noatak Community Water System | Northwest Arctic Borough | 485 | Community | Groundwater under influence of surface water |
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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, “Ambler Community Water System, PWSID AK2300214, Alaska”, https://aquacensus.com/water-systems/alaska/ambler-community-water-system-ak2300214 (data as of October 1, 2026).