NORWALK, IA · Warren County
NORWALK WATER SUPPLY 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)
- IA9164078
- System type
- Community Water System
- Population served
- 14,334
- Service connections
- 5,982
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Monitoring, Routine Minor (TCR)
—Coliform (TCR)
August 1, 2011 – August 31, 2011
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
August 1, 2001 – August 31, 2001
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 1999 – December 31, 1999
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1993 – July 31, 1993
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 1, 2011 – August 31, 2011 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2001 – August 31, 2001 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| December 1, 1999 – December 31, 1999 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 1993 – July 31, 1993 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- July 1, 2012State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- April 18, 2012State Formal Notice of Violation issued1 linked violation
- December 31, 2003State Public Notification received2 linked violations
- November 13, 2003State Compliance achieved1 linked violation
- August 14, 2003State Public Notification received3 linked violations
- July 21, 2003State Public Notification requested3 linked violations
- October 8, 2001State Public Notification received3 linked violations
- September 30, 2001State Compliance achieved4 linked violations
- January 24, 2000State Public Notification requested2 linked violations
- February 27, 1991State Public Notification received1 linked violation
- February 14, 1991State Public Notification requested3 linked violations
- February 14, 1991State Formal Notice of Violation issued1 linked violation
- February 14, 1991State Public Notification requested1 linked violation
- January 31, 1991State Compliance achieved1 linked violation
- March 3, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- November 1, 1986State Formal Notice of Violation issued1 linked violation
- October 1, 1986State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- October 1, 1986State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- September 30, 1984Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
Contact
NORWALK WATER SUPPLY
515-981-9527
NORWALK, IA 50211-1417