GRANVILLE, IA · Sioux County
GRANVILLE WATER SUPPLY Water System
Consumer Confidence Report status
GRANVILLE WATER SUPPLY 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 GRANVILLE WATER SUPPLY.
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)
- IA8429002
- System type
- Community Water System
- Population served
- 310
- Service connections
- 186
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
GRANVILLE WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 310 people from surface water.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- August 16, 1999State Compliance achieved3 linked violations
- July 21, 1997State Formal Notice of Violation issued2 linked violations
- December 5, 1995State Compliance achieved8 linked violations
- November 22, 1995State Formal Notice of Violation issued10 linked violations
Common questions
Is GRANVILLE WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. GRANVILLE WATER SUPPLY 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 GRANVILLE WATER SUPPLY’s next Consumer Confidence Report due?
- GRANVILLE WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does GRANVILLE WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for GRANVILLE WATER SUPPLY.
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
GRANVILLE WATER SUPPLY
712-727-3365
GRANVILLE, IA 51022