Public water system · AK2291130

Active

Tatitlek Water System

At a glance

Tatitlek Water System (PWSID AK2291130) is an active community water system in Valdez-Cordova Census Area County, Alaska. It reports serving 95 people through 26 service connections. Its primary water source is surface water, and EPA lists it as Native American-owned. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in March 2026.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDAK2291130

System typeCommunity water system

Activity statusActive

Population served95

Service connections26

Primary water sourceSurface water

Owner typeNative American

Primacy agencyAK state drinking water program

City servedTatitlek

StateAlaska

ZIP—

CountyValdez-Cordova Census Area County

How does Tatitlek Water System compare with other water systems in Valdez-Cordova Census Area County?

By EPA's size categories, Tatitlek Water System is a very small system (500 people or fewer). Valdez-Cordova Census Area County has 52 active public water systems. Its population served is well below the county average of 285 people per system, and accounts for 0.6% of the 14,835 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 Tatitlek 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 150 Alaska systems (11%) list surface water as their primary source.

Who owns and regulates Tatitlek Water System?

EPA lists Tatitlek 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. 8 of the 52 active systems in Valdez-Cordova Census Area County (15%) are also Native American-owned.

Does Tatitlek Water System have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in March 2026. The violations listed here began between April 2025 and March 2026. By type: 7 monitoring and reporting, 3 contaminant level above the legal limit and 2 monitoring. The contaminant or rule involved most often is Surface Water Treatment Rule (3 of them). EPA lists 7 as resolved and 5 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
2026-03-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2026-03-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Archived
2026-03-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Archived
2026-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Archived
2025-11-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2025-11-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2025-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Archived
2025-05-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2025-05-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2025-05-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-05-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2025-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	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.

Tatitlek Water System: frequently asked questions

Who runs Tatitlek Water System?

Tatitlek Water System (PWSID AK2291130) is a community water system Native American-owned. It is regulated by the AK state drinking water program.

How many people does Tatitlek Water System serve?

Tatitlek Water System reports serving 95 people through 26 service connections in Valdez-Cordova Census Area County, Alaska.

Where does Tatitlek Water System get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Tatitlek Water System have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are 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 Tatitlek 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, 3 are 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 Tatitlek Water System's water quality report?

As a community water system, Tatitlek 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 Valdez-Cordova Census Area County

Water system	County	Population served	Type	Source
Valdez Water System - Main	Valdez-Cordova Census Area	4,500	Community	Groundwater
Cordova City Water	Valdez-Cordova Census Area	2,700	Community	Surface water
Whittier Head of Bay Cruise Shipterminal	Valdez-Cordova Census Area	954	Transient non-community	Groundwater
Valdez Southcentral	Valdez-Cordova Census Area	675	Community	Groundwater
Whittier Water System	Valdez-Cordova Census Area	650	Community	Groundwater
Valdez Robe River S/D	Valdez-Cordova Census Area	464	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, “Tatitlek Water System, PWSID AK2291130, Alaska”, https://aquacensus.com/water-systems/alaska/tatitlek-water-system-ak2291130 (data as of October 1, 2026).