WASHINGTON, IA · Washington County

HIDDEN VALLEY MOBILE HOME PARK Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 2, 2005. 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 Washington County, IA.

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 Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA9200600
System type: Community Water System
Population served: 46
Service connections: 20
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2003 – July 31, 2003
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1999 – December 31, 1999
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
December 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 1997 – September 30, 1997
Resolved
Monitoring, Regular
—
LASSO
April 1, 1997 – April 30, 1997
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
April 1, 1997 – April 30, 1997
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1997 – January 31, 1997
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
May 1, 1992 – May 31, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1990 – November 30, 1990
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1990 – October 31, 1990
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
September 30, 1980 – September 29, 1983
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
July 1, 2003 – July 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1999 – December 31, 1999	Monitoring, Regular	Nitrate	—	Resolved
December 1, 1997 – December 31, 1997	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1997 – September 30, 1997	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 1997 – April 30, 1997	Monitoring, Regular	LASSO	—	Resolved
April 1, 1997 – April 30, 1997	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1997 – January 31, 1997	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
May 1, 1992 – May 31, 1992	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 1990 – November 30, 1990	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1990 – October 31, 1990	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 30, 1980 – September 29, 1983	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived

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

Enforcement actions

August 27, 2003State Public Notification requested6 linked violations
August 4, 2003State Compliance achieved7 linked violations
January 14, 2000State Public Notification requested4 linked violations
November 3, 1998State Compliance achieved3 linked violations
November 3, 1998State Compliance achieved1 linked violation
November 3, 1998State Compliance achieved1 linked violation
November 3, 1998State Compliance achieved1 linked violation
June 15, 1998State Formal Notice of Violation issued4 linked violations
May 18, 1998State Public Notification requested9 linked violations
May 15, 1998State Formal Notice of Violation issued1 linked violation
May 15, 1998State Public Notification requested2 linked violations
May 15, 1998State Public Notification requested5 linked violations
May 15, 1998State Formal Notice of Violation issued2 linked violations
May 15, 1998State Public Notification requested4 linked violations
May 15, 1998State Public Notification requested2 linked violations
April 13, 1998State Formal Notice of Violation issued5 linked violations
April 7, 1998State Compliance achieved1 linked violation
January 26, 1998State Public Notification requested3 linked violations
October 20, 1997State Formal Notice of Violation issued1 linked violation
October 20, 1997State Public Notification requested1 linked violation
September 22, 1997State Formal Notice of Violation issued1 linked violation
September 22, 1997State Public Notification requested1 linked violation
May 19, 1997State Formal Notice of Violation issued5 linked violations
May 14, 1997State Formal Notice of Violation issued2 linked violations
May 14, 1997State Formal Notice of Violation issued2 linked violations
May 14, 1997State Public Notification requested1 linked violation
May 14, 1997State Formal Notice of Violation issued1 linked violation
April 26, 1996State Formal Notice of Violation issued2 linked violations
October 16, 1995State Compliance achieved3 linked violations
August 18, 1995State Formal Notice of Violation issued3 linked violations
May 20, 1994State Formal Notice of Violation issued1 linked violation
March 18, 1994State Formal Notice of Violation issued3 linked violations
February 2, 1994State Compliance achieved5 linked violations
June 12, 1992State Public Notification received3 linked violations
June 12, 1992State Public Notification received1 linked violation
June 3, 1992State Formal Notice of Violation issued1 linked violation
June 3, 1992State Public Notification requested2 linked violations
June 3, 1992State Formal Notice of Violation issued3 linked violations
June 3, 1992State Public Notification requested1 linked violation
April 10, 1991State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
April 10, 1991State Administrative/Compliance Order without penalty issued1 linked violation
April 10, 1991State Administrative/Compliance Order without penalty issued4 linked violations
February 1, 1991State Public Notification received1 linked violation
January 15, 1991State Public Notification requested1 linked violation
December 18, 1990State Compliance achieved1 linked violation
September 24, 1990State Compliance achieved2 linked violations
September 24, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 24, 1990State Compliance achieved1 linked violation
November 3, 1989State Public Notification requested1 linked violation
October 10, 1989State Compliance achieved1 linked violation
February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

HIDDEN VALLEY MHP

319-461-0277

WASHINGTON, IA 52353