ROCKIN J INC

Montana — Transient Non-Community — PWSID: MT0004084

System Information

PWSID	MT0004084
System Name	ROCKIN J INC
System Type	Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Nov 19, 1999
Last Reported	Jan 5, 2026

Location & Contact

State	Montana
City	BILLINGS
ZIP Code	59102
Address	1133 GRAND
Organization	CARLSON, GENE
Phone	406-248-2558

Population & Service

Population Served	150
Service Connections	5

Drinking Water Violations (110)

This water system has 110 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
Oct 3, 2023	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Oct 13, 2023	Ground Water Rule
Oct 3, 2023	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Oct 13, 2023	Ground Water Rule
Oct 3, 2023	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Oct 13, 2023	Ground Water Rule
Aug 31, 2022	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Oct 13, 2023	Ground Water Rule
Aug 31, 2022	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Oct 13, 2023	Ground Water Rule
Aug 31, 2022	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Oct 13, 2023	Ground Water Rule
Jan 1, 2022	Dec 31, 2022	Nitrate-Nitrite	MR	No	Yes	—	—	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate-Nitrite	MR	No	Yes	—	—	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate-Nitrite	MR	No	Yes	—	—	—	Resolved	Dec 31, 2022	Nitrate Rule
Sep 1, 2021	Sep 30, 2021	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Sep 30, 2021	Revised Total Coliform Rule
Sep 1, 2021	Sep 30, 2021	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Sep 30, 2021	Revised Total Coliform Rule
Sep 1, 2021	Sep 30, 2021	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Sep 30, 2021	Revised Total Coliform Rule
Jul 1, 2021	Jul 31, 2021	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jul 31, 2021	Revised Total Coliform Rule
Jul 1, 2021	Jul 31, 2021	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jul 31, 2021	Revised Total Coliform Rule
Jul 1, 2021	Jul 31, 2021	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jul 31, 2021	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
Aug 23, 2018	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Sep 17, 2018	Ground Water Rule
Aug 23, 2018	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Sep 17, 2018	Ground Water Rule
Aug 23, 2018	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Sep 17, 2018	Ground Water Rule
Apr 1, 2018	Apr 30, 2018	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Apr 30, 2018	Revised Total Coliform Rule
Apr 1, 2018	Apr 30, 2018	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Apr 30, 2018	Revised Total Coliform Rule
Apr 1, 2018	Apr 30, 2018	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Apr 30, 2018	Revised Total Coliform Rule
May 1, 2012	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Aug 16, 2013	Ground Water Rule
May 1, 2012	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Aug 16, 2013	Ground Water Rule
May 1, 2012	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Aug 16, 2013	Ground Water Rule
May 1, 2012	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Aug 16, 2013	Ground Water Rule
May 1, 2012	May 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2012	Total Coliform Rule
May 1, 2012	May 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2012	Total Coliform Rule
May 1, 2012	May 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2012	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Apr 1, 2011	Apr 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2011	Total Coliform Rule
Apr 1, 2011	Apr 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2011	Total Coliform Rule
Apr 1, 2011	Apr 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2011	Total Coliform Rule
Apr 1, 2011	Apr 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2011	Total Coliform Rule
Apr 1, 2011	Apr 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2011	Total Coliform Rule
Mar 1, 2011	Mar 31, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2011	Total Coliform Rule
Mar 1, 2011	Mar 31, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2011	Total Coliform Rule
Mar 1, 2011	Mar 31, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2011	Total Coliform Rule
Mar 1, 2011	Mar 31, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2011	Total Coliform Rule
Mar 1, 2011	Mar 31, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2011	Total Coliform Rule
Mar 1, 2011	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Apr 13, 2011	Ground Water Rule
Mar 1, 2011	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Apr 13, 2011	Ground Water Rule
Mar 1, 2011	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Apr 13, 2011	Ground Water 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.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in Montana