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MASONIC HOME OF MONTANA

Montana — Community Water System — PWSID: MT0000245

System Information

PWSIDMT0000245
System NameMASONIC HOME OF MONTANA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityEAST HELENA
ZIP Code59635
Address34 INDUSTRY LOOP BLDG E
OrganizationROCKY MOUNTAIN OPERATIONS
Phone406-442-2949

Population & Service

Population Served90
Service Connections3

Drinking Water Violations (95)

This water system has 95 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
Dec 30, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jan 5, 2022 Lead and Copper Rule
Dec 30, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jan 5, 2022 Lead and Copper Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Jul 28, 2020 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Jul 28, 2020 Consumer Confidence Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jun 18, 2018 Lead and Copper Rule
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jun 18, 2018 Lead and Copper Rule
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jun 18, 2018 Lead and Copper Rule
Jan 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Sep 11, 2013 Lead and Copper Rule
Jan 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Sep 11, 2013 Lead and Copper Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Jul 31, 2008 Consumer Confidence Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Jul 31, 2008 Consumer Confidence Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Jul 31, 2008 Consumer Confidence Rule
Jan 1, 2005 Dec 31, 2007 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 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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