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MOUNTAIN HOME, CITY OF

Idaho — Community Water System — PWSID: ID4200032

System Information

PWSIDID4200032
System NameMOUNTAIN HOME, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 13, 1980
Last ReportedDec 19, 2025

Location & Contact

StateIdaho
CityMOUNTAIN HOME
ZIP Code83647
AddressPO BOX 10
OrganizationSONNENTAG, DAVID
Phone208-587-2108

Population & Service

Population Served14,651
Service Connections5,842

Drinking Water Violations (243)

This water system has 243 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 — Revised Total Coliform Rule TT Yes No — — — Unaddressed — Revised Total Coliform Rule
Aug 1, 2025 — Revised Total Coliform Rule TT Yes No — — — Unaddressed — Revised Total Coliform Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Jan 23, 2025 Lead and Copper Rule Revisions
Sep 30, 2024 — E. COLI MR No No — — — Unaddressed — Ground Water Rule
Sep 30, 2024 — E. COLI MR No No — — — Unaddressed — Ground Water Rule
Jul 22, 2024 — E. COLI MR No No — — — Unaddressed — Ground Water Rule
Jul 22, 2024 — E. COLI MR No No — — — Unaddressed — Ground Water Rule
Oct 1, 2021 Dec 31, 2021 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Radium-228 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2021 Synthetic Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2021 Synthetic Organic Chemicals
Oct 1, 2021 Dec 31, 2021 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Oct 1, 2021 Dec 31, 2021 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2021 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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