Public water system record
Coralville Muni Water System
Serves Coralville, Johnson County, IA · 22,318 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Coralville Muni Water System 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
- 2
Key facts
- Coralville Muni Water System draws water from 9 wells.
- Record on file since 1991, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 3 lead and 195 unknown out of 19,255 service lines.
Check whether Coralville Muni Water System 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.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2017 | Resolved |
Full record since 1991
EPA's records for Coralville Muni Water System go back to 1991. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 12 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 12 |
| October 19, 2016 to 2019 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began March 1991, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1991 | Resolved |
Where the water comes from
Coralville Muni Water System draws water from 9 wells.
Annual water quality report
Coralville Muni Water System 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