Is OAK VALLEY required to publish a Consumer Confidence Report?

Yes. OAK VALLEY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is OAK VALLEY’s next Consumer Confidence Report due?

OAK VALLEY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

CEDAR RAPIDS, IA · Linn County

OAK VALLEY Water System

Consumer Confidence Report status

OAK VALLEY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 2 items for OAK VALLEY that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): IA5784311
System type: Community Water System
Population served: 100
Service connections: 40
Ownership: privately owned
Water source: groundwater (wells)

OAK VALLEY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 100 people from groundwater.

As of August 1, 2026, its federal record holds 22 entries between 1980 and 2025, of which 2 remain open; none are health-based.

Of the 22, 11 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 Public Notice Rule and Revised PN Rule, the Total Coliform Rules, and inorganic chemicals.

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 1, 2025 – February 2, 2026
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 6, 2025 – August 4, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 22, 2024 – August 4, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – July 3, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 1, 2019
Unaddressed
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2015 – July 31, 2015
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2014 – June 30, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2014 – July 2, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 1, 2014 – July 2, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – September 17, 2013
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2013
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
November 24, 2012 – September 17, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – November 1, 2012
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2012 – July 31, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2000 – July 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2000 – May 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2000 – April 30, 2000
Resolved
Monitoring, Regular
—
Nitrate
April 1, 1985 – June 30, 1985
Archived
Monitoring, Regular
—
Mercury
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Fluoride
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Chromium
September 30, 1980 – September 29, 1983
Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – February 2, 2026	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
March 6, 2025 – August 4, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 22, 2024 – August 4, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2022 – July 3, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 1, 2019	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
July 1, 2015 – July 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2014 – July 2, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2014 – July 2, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2013 – September 17, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
November 24, 2012 – September 17, 2013	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2012 – November 1, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2012 – July 31, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
June 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2000 – July 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2000 – May 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2000 – April 30, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1985 – June 30, 1985	Monitoring, Regular	Nitrate	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Mercury	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Fluoride	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Chromium	—	Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 2, 2026State Compliance achieved1 linked violation
January 23, 2026State Formal Notice of Violation issued2 linked violations
August 4, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 4, 2025State Public Notification received1 linked violation
August 4, 2025State Compliance achieved1 linked violation
August 4, 2025State Compliance achieved1 linked violation
August 4, 2025State Public Notification received1 linked violation
April 17, 2025State Formal Notice of Violation issued2 linked violations
August 21, 2024State Public Notification requested1 linked violation
July 18, 2024State Formal Notice of Violation issued2 linked violations
July 18, 2024State Public Notification requested2 linked violations
November 9, 2023State Compliance achieved2 linked violations
October 19, 2022State Formal Notice of Violation issued3 linked violations
October 19, 2022State Formal Notice of Violation issued3 linked violations
October 11, 2021State Public Notification requested2 linked violations
July 12, 2021State Public Notification requested2 linked violations
June 23, 2017State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 11, 2016State Formal Notice of Violation issued1 linked violation
July 11, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 11, 2016State Public Notification requested1 linked violation
November 17, 2015State Public Notification received1 linked violation
August 27, 2015State Compliance achieved1 linked violation
August 19, 2015State Public Notification requested1 linked violation
August 19, 2015State Formal Notice of Violation issued1 linked violation
July 1, 2015State Public Notification received1 linked violation
July 1, 2015State Compliance achieved1 linked violation
November 19, 2014State Violation/Reminder Notice1 linked violation
September 30, 2014State Compliance achieved1 linked violation
August 18, 2014State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 18, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 17, 2014State Formal Notice of Violation issued1 linked violation
July 17, 2014State Public Notification requested1 linked violation
July 2, 2014State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 2, 2014State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 2, 2014State Public Notification received4 linked violations
July 2, 2014State Compliance achieved1 linked violation
July 2, 2014State Compliance achieved1 linked violation
July 2, 2014State Compliance achieved1 linked violation
July 2, 2014State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 14, 2014State Intentional no-action1 linked violation
May 14, 2014State Formal Notice of Violation issued1 linked violation
May 14, 2014State Violation/Reminder Notice1 linked violation
March 3, 2014State Public Notification received1 linked violation
February 24, 2014State Compliance achieved1 linked violation
February 18, 2014State Public Notification requested1 linked violation
February 18, 2014State Formal Notice of Violation issued1 linked violation
January 21, 2014State Formal Notice of Violation issued1 linked violation
January 21, 2014State Violation/Reminder Notice1 linked violation
January 21, 2014State Intentional no-action1 linked violation
September 19, 2013State Violation/Reminder Notice1 linked violation
September 19, 2013State Intentional no-action1 linked violation
September 19, 2013State Formal Notice of Violation issued1 linked violation
September 17, 2013State Compliance achieved3 linked violations
September 17, 2013State Public Notification received2 linked violations
September 17, 2013State Compliance achieved1 linked violation
September 17, 2013State Public Notification received1 linked violation
September 17, 2013State Compliance achieved1 linked violation
September 17, 2013State Public Notification received1 linked violation
September 3, 2013State Formal Notice of Violation issued1 linked violation
September 3, 2013State Public Notification requested1 linked violation
August 20, 2013State Formal Notice of Violation issued1 linked violation
August 20, 2013State Violation/Reminder Notice1 linked violation
August 20, 2013State Intentional no-action1 linked violation
August 20, 2013State Violation/Reminder Notice1 linked violation
August 20, 2013State Intentional no-action1 linked violation
August 20, 2013State Formal Notice of Violation issued1 linked violation
May 2, 2013State Compliance achievedgeneral compliance action — not tied to a specific violation on record
April 18, 2013State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
April 18, 2013State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 8, 2013State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 13, 2013State Intentional no-action1 linked violation
February 13, 2013State Violation/Reminder Notice1 linked violation
February 13, 2013State Formal Notice of Violation issued1 linked violation
January 30, 2013State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
January 30, 2013State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 1, 2012State Public Notification received1 linked violation
November 1, 2012State Public Notification received1 linked violation
October 23, 2012State Intentional no-action1 linked violation
October 23, 2012State Violation/Reminder Notice1 linked violation
October 23, 2012State Formal Notice of Violation issued1 linked violation
October 16, 2012State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 20, 2012State Public Notification requested1 linked violation
August 20, 2012State Formal Notice of Violation issued2 linked violations
August 20, 2012State Public Notification requested1 linked violation
August 20, 2012State Compliance achieved1 linked violation
August 6, 2012State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 27, 2012State Formal Notice of Violation issued1 linked violation
July 27, 2012State Public Notification requested1 linked violation
June 22, 2012State Formal Notice of Violation issued2 linked violations
June 22, 2012State Public Notification requested2 linked violations
May 10, 2012State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 23, 2012State Formal Notice of Violation issued3 linked violations
May 25, 2006State Formal Notice of Violation issued9 linked violations
June 25, 2001State Public Notification requested8 linked violations
June 14, 2001State Violation/Reminder Notice6 linked violations
August 4, 2000State Public Notification received9 linked violations
July 20, 2000State Formal Notice of Violation issued8 linked violations
November 12, 1999State Compliance achieved10 linked violations
May 10, 1999State Public Notification received9 linked violations
April 23, 1999State Formal Notice of Violation issued6 linked violations
August 5, 1998State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 4, 1998State Public Notification requested2 linked violations
July 8, 1997State Formal Notice of Violation issued1 linked violation
July 8, 1997State Bilateral Compliance Agreement signed2 linked violations
July 8, 1997State Bilateral Compliance Agreement signed1 linked violation
July 8, 1997State Public Notification requested3 linked violations
February 18, 1994State Formal Notice of Violation issued6 linked violations
June 17, 1993State Compliance achieved2 linked violations
June 11, 1993State Formal Notice of Violation issued2 linked violations
June 3, 1993State Public Notification received15 linked violations
June 3, 1993State Public Notification received2 linked violations
August 20, 1990State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 20, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 19, 1990State Compliance achieved1 linked violation

Common questions

Is OAK VALLEY required to publish a Consumer Confidence Report?: Yes. OAK VALLEY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is OAK VALLEY’s next Consumer Confidence Report due?: OAK VALLEY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OAK VALLEY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for OAK VALLEY that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

OAK VALLEY

319-310-3227

CEDAR RAPIDS, IA 52408