OXFORD, IA · Johnson County
ROYAL OAKS SUBDIVISION Water System
Consumer Confidence Report status
ROYAL OAKS SUBDIVISION 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 ROYAL OAKS SUBDIVISION.
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)
- IA5282303
- System type
- Community Water System
- Population served
- 163
- Service connections
- 65
- Ownership
- privately owned
- Water source
- groundwater (wells)
ROYAL OAKS SUBDIVISION is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 163 people from groundwater.
As of August 1, 2026, its federal record holds 5 entries between 1999 and 2024, all of which EPA lists as closed.
Of the 5, 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 the Total Coliform Rules, the Consumer Confidence Rule, and inorganic chemicals.
Violation history
Treatment Technique, Level 1 Assessment (RTCR)
Health-basedRevised Total Coliform Rule
August 1, 2024 – December 20, 2024
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2021 – September 10, 2021
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 2014 – September 30, 2014
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2001 – July 31, 2001
ResolvedMonitoring, Regular
—Nitrite
January 1, 1999 – December 31, 1999
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 1, 2024 – December 20, 2024 | Treatment Technique, Level 1 Assessment (RTCR) | Revised Total Coliform Rule | Health-based | Resolved |
| July 1, 2021 – September 10, 2021 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| September 1, 2014 – September 30, 2014 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2001 – July 31, 2001 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Nitrite | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 9, 2024State Formal Notice of Violation issued143 linked violations
- August 27, 2024State Violation/Reminder Notice106 linked violations
Common questions
Is ROYAL OAKS SUBDIVISION required to publish a Consumer Confidence Report?
- Yes. ROYAL OAKS SUBDIVISION 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 ROYAL OAKS SUBDIVISION’s next Consumer Confidence Report due?
- ROYAL OAKS SUBDIVISION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ROYAL OAKS SUBDIVISION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for ROYAL OAKS SUBDIVISION.
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
ROYAL OAKS SUBDIVISION
319-936-4189
OXFORD, IA 52322