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ROCKY BOY'S RURAL WATER

Montana — Community Water System — PWSID: 083090075

System Information

PWSID083090075
System NameROCKY BOY'S RURAL WATER
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 4, 1980
Last ReportedNov 17, 2025

Location & Contact

StateMontana
CityBOX ELDER
ZIP Code59521
Address—
OrganizationNAULT, TIM
Phone406-301-1852

Population & Service

Population Served2,000
Service Connections477

Drinking Water Violations (112)

This water system has 112 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
Jul 1, 2025 Sep 30, 2025 Nitrite MR No Yes — 1 mg/L — Archived Sep 30, 2025 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2021 Inorganic Chemicals
Jul 1, 2021 Sep 30, 2021 Asbestos MR No Yes — 7 MFL — Resolved Sep 30, 2021 Inorganic Chemicals
Oct 1, 2017 Dec 31, 2017 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2017 Inorganic Chemicals
Jul 19, 2017 — Groundwater Rule TT Yes No — — — Resolved Nov 7, 2019 Ground Water Rule
Jul 19, 2017 — Groundwater Rule TT Yes No — — — Resolved Nov 7, 2019 Ground Water Rule
Jul 1, 2017 Sep 30, 2017 Asbestos MR No Yes — 7 MFL — Resolved Sep 30, 2017 Inorganic Chemicals
Jul 1, 2017 Sep 30, 2017 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2017 Synthetic Organic Chemicals
Jul 1, 2017 Sep 30, 2017 Endothall MR No Yes — 0.1 mg/L — Resolved Sep 30, 2017 Synthetic Organic Chemicals
Jul 1, 2017 Sep 30, 2017 Diquat MR No Yes — 0.02 mg/L — Resolved Sep 30, 2017 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2017 Nitrate Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Jan 26, 2015 Consumer Confidence Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Jan 26, 2015 Consumer Confidence Rule
Jan 1, 2014 Dec 31, 2016 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Nickel MR No Yes — — — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2016 Arsenic Rule
Jan 1, 2014 Dec 31, 2016 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2016 Arsenic Rule
Jan 1, 2014 Dec 31, 2016 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2016 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2016 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2016 Synthetic 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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