MISSOURI VALLEY, IA · Harrison County

MELODY OAKS SUBDIVISION Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of April 2, 2010. 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 Harrison County, IA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): IA4344301
System type: Community Water System
Population served: 40
Service connections: 12
Ownership: privately owned
Water source: groundwater (wells)

MELODY OAKS SUBDIVISION is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, formerly serving 40 people from groundwater.

EPA's federal records list this system as inactive in 2010; the record below is historical.

As of August 1, 2026, its federal record holds 4 entries between 1991 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

Of the 4, 3 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules and the Radionuclides and Revised Rad Rule.

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2009 – September 30, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2009 – January 31, 2009
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1991 – June 30, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
September 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2009 – January 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1991 – June 30, 1995	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

March 20, 2006State Compliance achieved3 linked violations
September 2, 1997State Compliance achieved5 linked violations
September 2, 1997State Compliance achieved1 linked violation
August 25, 1997State Formal Notice of Violation issued1 linked violation
August 25, 1997State Public Notification requested1 linked violation
August 24, 1997State Compliance achieved2 linked violations
August 20, 1997State Compliance achieved1 linked violation
July 29, 1997State Bilateral Compliance Agreement signedgeneral compliance action — not tied to a specific violation on record
July 29, 1997State Bilateral Compliance Agreement signed2 linked violations
February 13, 1997State Formal Notice of Violation issued8 linked violations
February 13, 1997State Public Notification requested1 linked violation
February 13, 1997State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 13, 1997State Public Notification requested2 linked violations
December 22, 1995State Formal Notice of Violation issued3 linked violations
December 22, 1995State Public Notification requested3 linked violations
November 22, 1995State Formal Notice of Violation issued1 linked violation
November 14, 1995State Public Notification received1 linked violation
August 10, 1995State Public Notification received3 linked violations
July 31, 1995State Public Notification requested4 linked violations
July 31, 1995State Formal Notice of Violation issued3 linked violations
March 1, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 16, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

MELODY OAKS LOWER WELL ASSOC

712-642-4729

MISSOURI VALLEY, IA 51555