OXFORD, IA · Polk County
ROCKLYN MHP Water System
Consumer Confidence Report status
ROCKLYN MHP 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 2 items for ROCKLYN MHP that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- IA7780601
- System type
- Community Water System
- Population served
- 103
- Service connections
- 41
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
ROCKLYN MHP is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 103 people from surface water.
As of August 1, 2026, its federal record holds 4 entries between 2022 and 2023, of which 2 remain open; none are health-based.
Of the 4, 2 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 Public Notice Rule and Revised PN Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Public Notification Violation for NPDWR Violation
—Public Notice
August 7, 2023
UnaddressedPublic Notification Violation for NPDWR Violation
—Public Notice
August 7, 2023
UnaddressedMonitoring and Reporting (DBP)
—TTHM
May 1, 2022 – May 31, 2022
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
May 1, 2022 – May 31, 2022
Resolved
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 7, 2023 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| August 7, 2023 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| May 1, 2022 – May 31, 2022 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| May 1, 2022 – May 31, 2022 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is ROCKLYN MHP required to publish a Consumer Confidence Report?
- Yes. ROCKLYN MHP 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 ROCKLYN MHP’s next Consumer Confidence Report due?
- ROCKLYN MHP’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ROCKLYN MHP have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 2 items for ROCKLYN MHP that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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
ROCKLYN MHP
319-936-4189
OXFORD, IA 52322