PRESTON, IA · Jackson County
PRESTON MUNI WATER SUPPLY Water System
Consumer Confidence Report status
PRESTON MUNI 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 PRESTON MUNI 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)
- IA4965057
- System type
- Community Water System
- Population served
- 949
- Service connections
- 478
- Ownership
- local government
- Water source
- groundwater (wells)
PRESTON MUNI WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 949 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 2023, all of which EPA lists as closed. Nothing has been added since 2023.
All 1 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, Regular
—Nitrate
July 1, 2023 – June 30, 2024
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2023 – June 30, 2024 | Monitoring, Regular | Nitrate | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 12, 2024State Public Notification received2 linked violations
- June 23, 2006State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- July 30, 1987State Compliance achieved1 linked violation
- July 30, 1987State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Common questions
Is PRESTON MUNI WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. PRESTON MUNI 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 PRESTON MUNI WATER SUPPLY’s next Consumer Confidence Report due?
- PRESTON MUNI WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does PRESTON MUNI WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for PRESTON MUNI 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
PRESTON MUNI WATER SUPPLY
563-689-3081
PRESTON, IA 52069