OAKVILLE, IA · Louisa County

OAKVILLE WATER SUPPLY Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

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): IA5868085
System type: Community Water System
Population served: 200
Service connections: 93
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
July 1, 2023 – June 30, 2024
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2017 – June 30, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – September 28, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – November 2, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1996 – January 31, 1996
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 1990 – March 26, 1991
Resolved
Monitoring, Regular
—
Barium
January 1, 1988 – December 31, 1990
Resolved
Monitoring, Regular
—
Selenium
January 1, 1988 – December 31, 1990
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1988 – December 31, 1990
Resolved
Monitoring, Regular
—
Mercury
January 1, 1988 – December 31, 1990
Resolved
Monitoring, Regular
—
Chromium
January 1, 1988 – December 31, 1990
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2023 – June 30, 2024	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2017 – June 30, 2018	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2012 – September 28, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2011 – November 2, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2010 – January 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1996 – January 31, 1996	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 1990 – March 26, 1991	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 1988 – December 31, 1990	Monitoring, Regular	Barium	—	Resolved
January 1, 1988 – December 31, 1990	Monitoring, Regular	Selenium	—	Resolved
January 1, 1988 – December 31, 1990	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1988 – December 31, 1990	Monitoring, Regular	Mercury	—	Resolved
January 1, 1988 – December 31, 1990	Monitoring, Regular	Chromium	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 14, 2024State Public Notification received1 linked violation
July 30, 2024State Compliance achieved1 linked violation
July 17, 2024State Public Notification requested1 linked violation
July 17, 2024State Formal Notice of Violation issued1 linked violation
September 1, 2018State Public Notification received1 linked violation
July 24, 2018State Formal Notice of Violation issued1 linked violation
July 24, 2018State Public Notification requested1 linked violation
July 10, 2018State Compliance achieved1 linked violation
September 28, 2012State Compliance achieved1 linked violation
January 1, 2011State Public Notification received1 linked violation
April 26, 1996State Public Notification requested2 linked violations
June 3, 1991State Formal Notice of Violation issued3 linked violations
June 3, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
June 3, 1991State Public Notification requested1 linked violation
June 3, 1991State Formal Notice of Violation issued1 linked violation
June 3, 1991State Public Notification requested3 linked violations
June 3, 1991State Formal Notice of Violation issued1 linked violation
June 3, 1991State Public Notification requested1 linked violation
June 3, 1991State Formal Notice of Violation issued3 linked violations
June 3, 1991State Public Notification requested2 linked violations
June 3, 1991State Formal Notice of Violation issued2 linked violations
March 26, 1991State Compliance achieved1 linked violation
March 26, 1991State Compliance achieved1 linked violation
March 26, 1991State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 26, 1991State Compliance achieved9 linked violations
March 26, 1991State Compliance achieved2 linked violations
December 20, 1988State Formal Notice of Violation issued1 linked violation
October 5, 1988State Compliance achieved1 linked violation
September 28, 1988State Formal Notice of Violation issued1 linked violation
September 30, 1984Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record

Contact

OAKVILLE WATER SUPPLY

319-759-8120

OAKVILLE, IA 52646