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KOTLIK WATER SYSTEM

Alaska — Community Water System — PWSID: AK2272004

System Information

PWSIDAK2272004
System NameKOTLIK WATER SYSTEM
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeNative American
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 18, 2001
Last ReportedDec 19, 2025

Location & Contact

StateAlaska
CityANCHORAGE
ZIP Code99508
Address4500 Diplomacy Drive., Suite 130
OrganizationANELON, GREG_ARUC SPEC
Phone907-729-3661

Population & Service

Population Served617
Service Connections152

Drinking Water Violations (1,579)

This water system has 1,579 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Aug 1, 2025 Aug 31, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Archived Aug 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2025 Aug 31, 2025 Surface Water Treatment Rule MR No Yes — — — Archived Aug 31, 2025 Surface Water Treatment Rule
Jun 15, 2025 — Public Notice Other No No — — — Resolved Aug 7, 2025 Public Notice Rule and Revised PN Rule
Jun 15, 2025 — Public Notice Other No No — — — Resolved Aug 7, 2025 Public Notice Rule and Revised PN Rule
May 29, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Resolved Jun 13, 2025 Lead and Copper Rule
Dec 1, 2024 Dec 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 Revised Total Coliform Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Nov 6, 2024 — Public Notice Other No No — — — Resolved Aug 7, 2025 Public Notice Rule and Revised PN Rule
Oct 1, 2024 Dec 31, 2024 CARBON, TOTAL TT Yes No .32 RATIO TT — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 CARBON, TOTAL TT Yes No .32 RATIO TT — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Oct 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2024 Dec 31, 2024 CARBON, TOTAL TT Yes No .32 RATIO TT — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Oct 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Sep 30, 2024 CARBON, TOTAL TT Yes No .19 RATIO TT — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Jul 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Jul 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Jun 13, 2025 Lead and Copper Rule
Jul 1, 2024 Jul 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Jul 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 CARBON, TOTAL TT Yes No .19 RATIO TT — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Jul 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Jul 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 CARBON, TOTAL TT Yes No .19 RATIO TT — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jun 30, 2024 — Public Notice Other No No — — — Resolved Jul 17, 2024 Public Notice Rule and Revised PN Rule
Jun 1, 2024 Jun 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2024 Surface Water Treatment Rule
Jun 1, 2024 Jun 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 16, 2024 — Public Notice Other No No — — — Resolved Jul 17, 2024 Public Notice Rule and Revised PN Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Apr 1, 2024 Jun 30, 2024 CARBON, TOTAL TT Yes No — TT — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 CARBON, TOTAL TT Yes No — TT — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2024 Jun 30, 2024 CARBON, TOTAL TT Yes No — TT — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 9, 2024 — Public Notice Other No No — — — Resolved Mar 20, 2024 Public Notice Rule and Revised PN Rule
Jan 1, 2024 Mar 31, 2024 CARBON, TOTAL TT Yes No — TT — Resolved Mar 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 CARBON, TOTAL TT Yes No — TT — Resolved Mar 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 CARBON, TOTAL TT Yes No — TT — Resolved Mar 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Feb 20, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Jun 13, 2025 Lead and Copper Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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