ANKENY, IA · Polk County
HICKORY HOLLOW WATER SERVICE, INC. Water System
Consumer Confidence Report status
HICKORY HOLLOW WATER SERVICE, INC. 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 HICKORY HOLLOW WATER SERVICE, INC..
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)
- IA7709396
- System type
- Community Water System
- Population served
- 375
- Service connections
- 150
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
HICKORY HOLLOW WATER SERVICE, INC. is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 375 people from surface water.
As of August 1, 2026, its federal record holds 10 entries between 1976 and 1993, all of which EPA lists as closed. Nothing has been added since 1993.
Of the 10, 4 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.
Violation history
Monitoring, Check/Repeat/Confirmation
—Fluoride
October 1, 1993 – December 31, 1993
ResolvedMonitoring, Check/Repeat/Confirmation
—Fluoride
July 1, 1993 – September 30, 1993
ResolvedMonitoring, Regular
—Fluoride
January 1, 1993 – March 31, 1993
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedFluoride
July 1, 1992 – September 30, 1992
ResolvedMonitoring, Check/Repeat/Confirmation
—Fluoride
April 1, 1992 – June 30, 1992
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedFluoride
October 10, 1985 – October 9, 1986
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedFluoride
October 1, 1984 – September 30, 1985
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedFluoride
October 1, 1983 – September 30, 1984
ArchivedNotification, Public
—Fluoride
October 1, 1983 – September 30, 1986
ResolvedMaximum Contaminant Level Violation, Average
Health-basedFluoride
July 1, 1976 – June 30, 1979
Resolved
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 |
|---|---|---|---|---|
| October 1, 1993 – December 31, 1993 | Monitoring, Check/Repeat/Confirmation | Fluoride | — | Resolved |
| July 1, 1993 – September 30, 1993 | Monitoring, Check/Repeat/Confirmation | Fluoride | — | Resolved |
| January 1, 1993 – March 31, 1993 | Monitoring, Regular | Fluoride | — | Resolved |
| July 1, 1992 – September 30, 1992 | Maximum Contaminant Level Violation, Single Sample | Fluoride | Health-based | Resolved |
| April 1, 1992 – June 30, 1992 | Monitoring, Check/Repeat/Confirmation | Fluoride | — | Resolved |
| October 10, 1985 – October 9, 1986 | Maximum Contaminant Level Violation, Single Sample | Fluoride | Health-based | Archived |
| October 1, 1984 – September 30, 1985 | Maximum Contaminant Level Violation, Single Sample | Fluoride | Health-based | Archived |
| October 1, 1983 – September 30, 1984 | Maximum Contaminant Level Violation, Single Sample | Fluoride | Health-based | Archived |
| October 1, 1983 – September 30, 1986 | Notification, Public | Fluoride | — | Resolved |
| July 1, 1976 – June 30, 1979 | Maximum Contaminant Level Violation, Average | Fluoride | Health-based | Resolved |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- June 5, 1996State Compliance achieved2 linked violations
- June 5, 1996State Compliance achieved3 linked violations
- June 5, 1996State Compliance achieved2 linked violations
- May 27, 1994State Public Notification received18 linked violations
- February 7, 1994State Public Notification received2 linked violations
- November 19, 1993State Public Notification requested5 linked violations
- November 19, 1993State Formal Notice of Violation issued1 linked violation
- August 20, 1993State Public Notification requested3 linked violations
- August 20, 1993State Formal Notice of Violation issued1 linked violation
- May 14, 1993State Formal Notice of Violation issued3 linked violations
- May 14, 1993State Public Notification requested3 linked violations
- May 10, 1993State Public Notification received3 linked violations
- November 13, 1992State Public Notification requested1 linked violation
- July 23, 1992State Public Notification received2 linked violations
- December 24, 1991State Administrative/Compliance Order without penalty issued3 linked violations
- April 15, 1987State Compliance achieved2 linked violations
- March 6, 1987State Formal Notice of Violation issued2 linked violations
- March 6, 1987State Formal Notice of Violation issued2 linked violations
- January 19, 1982State Unresolved7 linked violations
- July 15, 1979State Formal Notice of Violation issued2 linked violations
Common questions
Is HICKORY HOLLOW WATER SERVICE, INC. required to publish a Consumer Confidence Report?
- Yes. HICKORY HOLLOW WATER SERVICE, INC. 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 HICKORY HOLLOW WATER SERVICE, INC.’s next Consumer Confidence Report due?
- HICKORY HOLLOW WATER SERVICE, INC.’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does HICKORY HOLLOW WATER SERVICE, INC. have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for HICKORY HOLLOW WATER SERVICE, INC..
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
THORPE WATER DEVELOPMENT COMPANY
515-289-2345
ANKENY, IA 50021