CALAMUS, IA · Muscatine County
STOCKTON MUNI WATER SUPPLY Water System
Consumer Confidence Report status
STOCKTON 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 STOCKTON 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)
- IA7063096
- System type
- Community Water System
- Population served
- 176
- Service connections
- 90
- Ownership
- local government
- Water source
- groundwater (wells)
STOCKTON MUNI WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 176 people from groundwater.
As of August 1, 2026, its federal record holds 10 entries between 1985 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.
Of the 10, 9 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 Consumer Confidence Rule, and the Lead and Copper Rule.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2019 – August 13, 2019
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
April 1, 1988 – October 10, 1988
ResolvedMonitoring, Regular
—Cadmium
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Chromium
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Fluoride
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Arsenic
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Mercury
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Nitrate
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Selenium
July 1, 1985 – June 30, 1988
ResolvedMonitoring, Regular
—Barium
July 1, 1985 – June 30, 1988
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2019 – August 13, 2019 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 1988 – October 10, 1988 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Cadmium | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Chromium | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Fluoride | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Mercury | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Nitrate | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Selenium | — | Resolved |
| July 1, 1985 – June 30, 1988 | Monitoring, Regular | Barium | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 13, 2019State Compliance achieved1 linked violation
- August 2, 2019State Formal Notice of Violation issued1 linked violation
- April 5, 2013State Public Notification received2 linked violations
- January 16, 2013State Formal Notice of Violation issued3 linked violations
- January 16, 2013State Public Notification requested1 linked violation
- February 22, 2006State Compliance achieved4 linked violations
- November 21, 2005State Formal Notice of Violation issued2 linked violations
- May 10, 1993State Compliance achieved2 linked violations
- April 23, 1993State Public Notification requested1 linked violation
- April 23, 1993State Formal Notice of Violation issued1 linked violation
- March 15, 1993State Compliance achieved1 linked violation
- February 22, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- April 3, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- November 7, 1988State Administrative/Compliance Order without penalty issued1 linked violation
- November 7, 1988State Administrative/Compliance Order without penalty issued1 linked violation
- November 7, 1988State Administrative/Compliance Order without penalty issued1 linked violation
- October 10, 1988State Compliance achieved1 linked violation
- October 10, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- October 10, 1988State Compliance achieved1 linked violation
- September 30, 1984Federal issued Formal Notice of Violation1 linked violation
Common questions
Is STOCKTON MUNI WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. STOCKTON 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 STOCKTON MUNI WATER SUPPLY’s next Consumer Confidence Report due?
- STOCKTON MUNI WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does STOCKTON 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 STOCKTON 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
STOCKTON MUNI WATER SUPPLY
563-579-5626
CALAMUS, IA 52729