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DENALI BOROUGH SD - TRI-VALLEY

Alaska — Non-Transient Non-Community — PWSID: AK2390285

System Information

PWSIDAK2390285
System NameDENALI BOROUGH SD - TRI-VALLEY
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolYes
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 19, 2025

Location & Contact

StateAlaska
CityANDERSON
ZIP Code99744-3120
AddressP.O. BOX 3120
OrganizationHAMEL, CURTIS
Phone907-683-2278

Population & Service

Population Served226
Service Connections4

Drinking Water Violations (183)

This water system has 183 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
Apr 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Oct 1, 2023 Dec 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2023 Revised Total Coliform Rule
Oct 1, 2023 Dec 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2023 Revised Total Coliform Rule
May 8, 2023 — Groundwater Rule Other No No — — — Resolved May 23, 2023 Ground Water Rule
Oct 1, 2022 Dec 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2022 Revised Total Coliform Rule
Oct 16, 2012 — Groundwater Rule TT Yes No — — — Resolved Dec 20, 2012 Ground Water Rule
Aug 17, 2012 — Groundwater Rule TT Yes No — — — Resolved Dec 20, 2012 Ground Water Rule
Jan 1, 2002 Dec 31, 2006 Other No No — — — Resolved Dec 31, 2006 Total Coliform Rule
Jan 1, 1999 Dec 31, 1999 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1999 Nitrate Rule
Jan 1, 1999 Dec 31, 1999 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1999 Nitrate Rule
Jan 1, 1998 Dec 31, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1998 Nitrate Rule
Jan 1, 1998 Dec 31, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1998 Nitrate Rule
Jan 1, 1997 Dec 31, 1998 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Apr 28, 2000 Lead and Copper Rule MR No No — TT — Resolved Apr 28, 2000 Lead and Copper Rule
Jan 1, 1997 Dec 31, 1998 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Apr 28, 2000 Lead and Copper Rule MR No No — TT — Resolved Apr 28, 2000 Lead and Copper Rule
Jan 1, 1997 Dec 31, 1998 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1997 Dec 31, 1998 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1998 Volatile Organic Chemicals

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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