Is DEERFIELD HEIGHTS ASSOCIATION required to publish a Consumer Confidence Report?

Yes. DEERFIELD HEIGHTS ASSOCIATION 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 DEERFIELD HEIGHTS ASSOCIATION’s next Consumer Confidence Report due?

DEERFIELD HEIGHTS ASSOCIATION’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.

OSSIAN, IA · Winneshiek County

DEERFIELD HEIGHTS ASSOCIATION Water System

Consumer Confidence Report status

DEERFIELD HEIGHTS ASSOCIATION 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 no open violations for DEERFIELD HEIGHTS ASSOCIATION.

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): IA9630316
System type: Community Water System
Population served: 28
Service connections: 10
Ownership: privately owned
Water source: groundwater (wells)

DEERFIELD HEIGHTS ASSOCIATION is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 28 people from groundwater.

As of August 1, 2026, its federal record holds 12 entries between 2005 and 2014, all of which EPA lists as closed. Nothing has been added since 2014.

Of the 12, 9 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, inorganic chemicals, and the Miscellaneous Other Rules.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2014 – November 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2014 – April 30, 2014
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2013 – November 30, 2013
Resolved
Operations Report
—
No contaminant on record
June 1, 2013 – June 30, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2006 – November 30, 2006
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 2006 – September 30, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2006 – July 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – May 2, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2005 – September 30, 2005
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2014 – November 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2014 – April 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Nitrate	—	Resolved
November 1, 2013 – November 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2013 – June 30, 2013	Operations Report	—	—	Resolved
December 1, 2011 – December 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 1, 2006 – November 30, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2006 – September 30, 2006	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2006 – July 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2006 – May 2, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 2005 – September 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is DEERFIELD HEIGHTS ASSOCIATION required to publish a Consumer Confidence Report?: Yes. DEERFIELD HEIGHTS ASSOCIATION 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 DEERFIELD HEIGHTS ASSOCIATION’s next Consumer Confidence Report due?: DEERFIELD HEIGHTS ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DEERFIELD HEIGHTS ASSOCIATION have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for DEERFIELD HEIGHTS ASSOCIATION.
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

DEERFIELD HEIGHTS OPERATOR

Phone not on record

OSSIAN, IA 52161