THOMPSON, IA · Winnebago County
THOMPSON WATER WORKS Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- IA9585017
- System type
- Community Water System
- Population served
- 499
- Service connections
- 312
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
April 1, 1989 – January 16, 1990
ResolvedMonitoring, Regular
—Cadmium
July 1, 1986 – June 30, 1989
ResolvedMonitoring, Regular
—Chromium
July 1, 1986 – June 30, 1989
ResolvedMonitoring, Regular
—Fluoride
July 1, 1986 – June 30, 1989
ResolvedMonitoring, Regular
—Mercury
July 1, 1986 – June 30, 1989
ResolvedMonitoring, Regular
—Nitrate
July 1, 1986 – June 30, 1989
ResolvedMonitoring, Regular
—Arsenic
July 1, 1986 – June 30, 1989
ResolvedMonitoring, Regular
—Selenium
July 1, 1986 – June 30, 1989
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 1989 – January 16, 1990 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Cadmium | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Chromium | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Fluoride | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Mercury | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Nitrate | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 1986 – June 30, 1989 | Monitoring, Regular | Selenium | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- May 27, 2005State Public Notification received1 linked violation
- March 1, 2005State Compliance achieved2 linked violations
- September 24, 2004State Formal Notice of Violation issued2 linked violations
- July 26, 2001State Public Notification requested8 linked violations
- July 26, 2001State Formal Notice of Violation issued6 linked violations
- October 1, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- September 10, 1990State Compliance achieved1 linked violation
- September 10, 1990State Compliance achieved1 linked violation
- January 16, 1990State Compliance achieved10 linked violations
- January 16, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- December 20, 1989State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- December 20, 1989State Administrative/Compliance Order without penalty issued1 linked violation
- December 20, 1989State Administrative/Compliance Order without penalty issued8 linked violations
- December 20, 1989State Administrative/Compliance Order without penalty issued1 linked violation
- December 20, 1989State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- July 24, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- June 27, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- October 4, 1988State Formal Notice of Violation issued1 linked violation
- October 4, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- October 3, 1988State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- October 3, 1988State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- October 3, 1988State Administrative Penalty assessedgeneral compliance action — not tied to a specific violation on record
- September 12, 1988State Compliance achieved1 linked violation
- September 12, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- August 17, 1988State Formal Notice of Violation issued1 linked violation
- December 7, 1987State Public Notification requested2 linked violations
- October 5, 1987State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
Contact
THOMPSON WATER WORKS
641-584-2785
THOMPSON, IA 50478