OKOBOJI, IA · Dickinson County
CENTRAL WATER SYSTEM Water System
Consumer Confidence Report status
CENTRAL WATER SYSTEM 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 CENTRAL WATER SYSTEM.
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)
- IA3000099
- System type
- Community Water System
- Population served
- 25
- Service connections
- 3
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CENTRAL WATER SYSTEM is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 25 people from surface water.
As of August 1, 2026, its federal record holds 10 entries between 1987 and 2011, all of which EPA lists as closed. Nothing has been added since 2011.
All 10 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, the Surface Water Treatment Rules, and the Lead and Copper Rule.
Violation history
Monitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
September 1, 2011 – September 30, 2011
ResolvedMonitoring, Regular
—Nitrate
October 1, 1989 – September 30, 1990
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
July 1, 1988 – July 12, 1989
ResolvedMonitoring, Regular
—Nitrate
January 1, 1988 – December 31, 1988
ResolvedMonitoring, Regular
—Arsenic
October 1, 1987 – September 30, 1988
ResolvedMonitoring, Regular
—Selenium
October 1, 1987 – September 30, 1988
ResolvedMonitoring, Regular
—Mercury
October 1, 1987 – September 30, 1988
ResolvedMonitoring, Regular
—Cadmium
October 1, 1987 – September 30, 1988
ResolvedMonitoring, Regular
—Chromium
October 1, 1987 – September 30, 1988
ResolvedMonitoring, Regular
—Fluoride
October 1, 1987 – September 30, 1988
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 2011 – September 30, 2011 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| October 1, 1989 – September 30, 1990 | Monitoring, Regular | Nitrate | — | Resolved |
| July 1, 1988 – July 12, 1989 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 1988 – December 31, 1988 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 1987 – September 30, 1988 | Monitoring, Regular | Arsenic | — | Resolved |
| October 1, 1987 – September 30, 1988 | Monitoring, Regular | Selenium | — | Resolved |
| October 1, 1987 – September 30, 1988 | Monitoring, Regular | Mercury | — | Resolved |
| October 1, 1987 – September 30, 1988 | Monitoring, Regular | Cadmium | — | Resolved |
| October 1, 1987 – September 30, 1988 | Monitoring, Regular | Chromium | — | Resolved |
| October 1, 1987 – September 30, 1988 | Monitoring, Regular | Fluoride | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 13, 1990State Compliance achieved2 linked violations
- October 23, 1990State Formal Notice of Violation issued1 linked violation
- October 23, 1990State Public Notification requested1 linked violation
- September 21, 1989State Administrative/Compliance Order without penalty issued2 linked violations
- September 21, 1989State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- September 21, 1989State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- September 21, 1989State Administrative/Compliance Order without penalty issued1 linked violation
- July 12, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- July 12, 1989State Compliance achieved3 linked violations
- February 5, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
Common questions
Is CENTRAL WATER SYSTEM required to publish a Consumer Confidence Report?
- Yes. CENTRAL WATER SYSTEM 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 CENTRAL WATER SYSTEM’s next Consumer Confidence Report due?
- CENTRAL WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CENTRAL WATER SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CENTRAL WATER SYSTEM.
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
CENTRAL WATER SYSTEM
712-332-5000
OKOBOJI, IA 51355