BILLINGS, MT · Yellowstone County

CEDAR PARK WATER PLANT Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of July 16, 2003. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Yellowstone County, MT.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

System facts

System ID (PWSID): MT0000625
System type: Community Water System
Population served: 600
Service connections: 78
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2003 – May 31, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2003 – February 28, 2003
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2001 – March 31, 2001
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Toluene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Benzene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2000 – January 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1999 – September 30, 1999
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1998 – May 31, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1995 – November 30, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
May 1, 2003 – May 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2003 – February 28, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Benzene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Thallium, Total	—	Resolved
March 1, 2001 – March 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Toluene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Benzene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2000 – January 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1999 – September 30, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1998 – May 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1995 – November 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1995 – October 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 13, 2004State Compliance achieved2 linked violations
November 3, 2003State Compliance achieved52 linked violations
July 16, 2003State Compliance achieved2 linked violations
June 21, 2003State Public Notification requested2 linked violations
May 21, 2003State Violation/Reminder Notice2 linked violations
May 21, 2003State Public Notification requested1 linked violation
May 13, 2003State Compliance achieved1 linked violation
May 13, 2003State Public Notification received1 linked violation
April 23, 2003State Public Notification requested27 linked violations
April 1, 2003State Public Notification received2 linked violations
February 18, 2003State Public Notification requested7 linked violations
August 16, 2002State Public Notification received24 linked violations
July 25, 2002State Violation/Reminder Notice3 linked violations
June 29, 2002State Violation/Reminder Notice27 linked violations
June 24, 2002State Compliance achieved24 linked violations
June 3, 2002State Compliance achieved4 linked violations
September 24, 2001State Violation/Reminder Notice1 linked violation
September 24, 2001State Public Notification requested1 linked violation
June 22, 2001State Public Notification received2 linked violations
June 22, 2001State Public Notification received13 linked violations
May 27, 2001State Public Notification requested1 linked violation
May 27, 2001State Violation/Reminder Notice1 linked violation
December 21, 2000State Violation/Reminder Notice1 linked violation
December 21, 2000State Public Notification requested1 linked violation
June 23, 1998State Violation/Reminder Notice3 linked violations
December 29, 1995State Violation/Reminder Notice1 linked violation
November 29, 1995State Violation/Reminder Notice2 linked violations

Last known contact on file (system is inactive)

Not on record

406-256-6843

BILLINGS, MT 59101