Public water system record
Norwalk Water Supply
Serves Norwalk, Warren County, IA · 14,334 people served
Federal records show no health-based violations and no monitoring or reporting issues for Norwalk Water Supply in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Norwalk Water Supply buys its water from Des Moines Water Works and Ciww (DMWW).
- Record on file since 1990, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,392 unknown out of 5,472 service lines.
Check whether Norwalk Water Supply serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 1990
EPA's records for Norwalk Water Supply go back to 1990. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 4 |
| 2000s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2003, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
Where the water comes from
Norwalk Water Supply buys its water from Des Moines Water Works and Ciww (DMWW). It lists no wells or intakes of its own.
Buys water from
- Des Moines Water Works Des Moines, IA
- Ciww (DMWW) Des Moines, IA
Annual water quality report
Norwalk Water Supply must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Iowa.
Certified drinking water labs by state EPA guidance for private wells