JUDITH GAP TOWN OF

Montana — Community Water System — PWSID: MT0000258

System Information

PWSID	MT0000258
System Name	JUDITH GAP TOWN OF
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Feb 13, 1979
Last Reported	Jan 5, 2026

Location & Contact

State	Montana
City	JUDITH GAP
ZIP Code	59453
Address	PO BOX 205
Organization	MCLAUGHLIN, CARL L
Phone	406-473-2249

Population & Service

Population Served	126
Service Connections	79

Drinking Water Violations (52)

This water system has 52 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, 2021	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	May 2, 2022	Consumer Confidence Rule
Jul 1, 2021	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	May 2, 2022	Consumer Confidence Rule
Dec 30, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jan 20, 2021	Lead and Copper Rule
Dec 30, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jan 20, 2021	Lead and Copper Rule
Oct 1, 2019	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 2020	Lead and Copper Rule
Oct 1, 2019	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 2020	Lead and Copper Rule
Oct 1, 2019	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 2020	Lead and Copper Rule
Sep 1, 2017	Aug 31, 2020	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Aug 31, 2020	Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2017	Aug 31, 2020	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Aug 31, 2020	Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2017	Aug 31, 2020	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Aug 31, 2020	Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2017	Aug 31, 2020	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Aug 31, 2020	Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2017	Aug 31, 2020	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Aug 31, 2020	Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2017	Sep 30, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Sep 30, 2017	Revised Total Coliform Rule
Sep 1, 2017	Sep 30, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Sep 30, 2017	Revised Total Coliform Rule
Sep 1, 2017	Sep 30, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Sep 30, 2017	Revised Total Coliform Rule
Sep 1, 2017	Aug 31, 2020	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Aug 31, 2020	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Feb 4, 2014	Lead and Copper Rule
Jan 1, 2014	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Feb 4, 2014	Lead and Copper Rule
Jan 1, 2011	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Mar 11, 2011	Lead and Copper Rule
Jan 1, 2011	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Mar 11, 2011	Lead and Copper Rule
Jan 1, 2000	Dec 31, 2000	Nitrate-Nitrite	MR	No	Yes	—	—	—	Resolved	Dec 31, 2000	Nitrate Rule
Jan 1, 2000	Dec 31, 2000	Nitrate-Nitrite	MR	No	Yes	—	—	—	Resolved	Dec 31, 2000	Nitrate Rule
Jan 1, 2000	Dec 31, 2000	Nitrate-Nitrite	MR	No	Yes	—	—	—	Resolved	Dec 31, 2000	Nitrate Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1999	Total Coliform Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1999	Total Coliform Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1999	Total Coliform Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1999	Total Coliform Rule
Jan 1, 1999	Dec 31, 2001	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2001	Arsenic Rule
Jan 1, 1999	Dec 31, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2001	Arsenic Rule
Jan 1, 1999	Dec 31, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2001	Arsenic Rule
Jan 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Mar 1, 2001	Lead and Copper Rule
Jan 1, 1999	Dec 31, 2001	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Mar 1, 2001	Lead and Copper Rule
Jan 1, 1999	Dec 31, 2001	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2001	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Feb 18, 2004	Lead and Copper Rule
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Feb 18, 2004	Lead and Copper Rule
Jan 1, 1996	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jan 1, 1996	Dec 31, 1996	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1996	Nitrate Rule
Jan 1, 1996	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jan 1, 1994	Dec 31, 1994	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1994	Nitrate 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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