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LARSEN BAY WATER SYSTEM

Alaska — Community Water System — PWSID: AK2250134

System Information

PWSIDAK2250134
System NameLARSEN BAY WATER SYSTEM
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeNative American
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 19, 2025

Location & Contact

StateAlaska
CityLARSEN BAY
ZIP Code99624-0008
AddressP.O. Box 8
OrganizationNELSON, WILLIAM
Phone907-847-2211

Population & Service

Population Served271
Service Connections89

Drinking Water Violations (1,136)

This water system has 1,136 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
Jan 1, 2025 Jan 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2025 Surface Water Treatment Rule
Jan 1, 2025 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 E. COLI MR No No — — — Resolved Dec 31, 2024 Long Term 2 Enhanced Surface Water Treatment Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Nov 19, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Nov 19, 2024 Lead and Copper Rule Revisions
Jun 1, 2024 Jun 30, 2024 Surface Water Treatment Rule MR No No — — — Resolved Jun 30, 2024 Surface Water Treatment Rule
Jan 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Jul 23, 2024 Lead and Copper Rule
Feb 1, 2023 Feb 28, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2023 Surface Water Treatment Rule
Jan 1, 2023 Dec 31, 2023 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Jan 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2023 Surface Water Treatment Rule
Jan 1, 2023 Dec 31, 2023 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Jan 1, 2023 Dec 31, 2023 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2023 Volatile Organic Chemicals
Dec 1, 2022 Dec 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2022 Surface Water Treatment Rule
Nov 1, 2022 Nov 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2022 Surface Water Treatment Rule
Nov 1, 2022 Nov 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2022 Revised Total Coliform Rule
Oct 1, 2022 Dec 31, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 19, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Oct 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 Dec 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2020 Mar 31, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2020 Surface Water Treatment Rule
Jan 1, 2020 Mar 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2018 Nov 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Nov 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2018 Nov 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Nov 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2018 Nov 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Nov 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2018 Nov 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Nov 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Nov 2, 2016 Consumer Confidence Rule
Jan 1, 2015 Jan 31, 2015 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2015 Surface Water Treatment 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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