Is THUNDER HILLS HOME & UTILITY ASSOC. required to publish a Consumer Confidence Report?

Yes. THUNDER HILLS HOME & UTILITY ASSOC. 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 THUNDER HILLS HOME & UTILITY ASSOC.’s next Consumer Confidence Report due?

THUNDER HILLS HOME & UTILITY ASSOC.’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.

EPWORTH, IA · Dubuque County

THUNDER HILLS HOME & UTILITY ASSOC. Water System

Consumer Confidence Report status

THUNDER HILLS HOME & UTILITY ASSOC. 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 THUNDER HILLS HOME & UTILITY ASSOC..

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): IA3170335
System type: Community Water System
Population served: 300
Service connections: 92
Ownership: privately owned
Water source: groundwater (wells)

THUNDER HILLS HOME & UTILITY ASSOC. is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 300 people from groundwater.

As of August 1, 2026, its federal record holds 11 entries between 1980 and 1991, all of which EPA lists as closed. Nothing has been added since 1991.

All 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 inorganic chemicals and the Lead and Copper Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
April 1, 1991 – November 15, 1991
Resolved
Monitoring, Regular
—
Selenium
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Chromium
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Fluoride
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Mercury
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Arsenic
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Barium
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Cadmium
July 1, 1988 – June 30, 1991
Resolved
Monitoring, Regular
—
Mercury
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Arsenic
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Barium
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
April 1, 1991 – November 15, 1991	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Selenium	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Chromium	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Fluoride	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Mercury	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Arsenic	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Barium	—	Resolved
July 1, 1988 – June 30, 1991	Monitoring, Regular	Cadmium	—	Resolved
September 30, 1980 – September 29, 1983	Monitoring, Regular	Mercury	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Arsenic	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Barium	—	Archived

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

Enforcement actions

October 25, 2007State Formal Notice of Violation issued1 linked violation
October 25, 2007State Public Notification requested1 linked violation
October 25, 2007State Public Notification requested1 linked violation
December 15, 2000State Public Notification requested3 linked violations
November 20, 1991State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
November 20, 1991State Administrative/Compliance Order without penalty issued13 linked violations
November 20, 1991State Administrative/Compliance Order without penalty issued1 linked violation
November 20, 1991State Administrative/Compliance Order without penalty issued2 linked violations
November 15, 1991State Compliance achieved2 linked violations
October 29, 1991State Public Notification requested2 linked violations
October 29, 1991State Public Notification requested3 linked violations
October 29, 1991State Formal Notice of Violation issued2 linked violations
October 29, 1991State Public Notification requested1 linked violation
October 29, 1991State Formal Notice of Violation issued1 linked violation
October 29, 1991State Formal Notice of Violation issued2 linked violations
October 29, 1991State Public Notification requested2 linked violations
October 10, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 8, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 1, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Common questions

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

THUNDER HILLS HOME & UTILITY ASSOC.

563-543-0354

EPWORTH, IA 52045