Public water system record
University Water System
Serves Iowa City, Johnson County, IA · 26,684 people served
Federal records show 2 health-based violations and 4 monitoring/reporting issues for University Water System in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- University Water System draws water from 1 well and 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2017.
- Record on file since 1982, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 170 service lines.
Check whether University 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
Nov 1, 2019 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Feb 23, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
Full record since 1982
EPA's records for University Water System go back to 1982. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 23 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 16 |
| 1990s | 0 | 6 |
| 2000s | 1 | 0 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 2 | 4 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2005, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jan 1, 2005 | Resolved |
What the violations mean
Total Trihalomethanes (TTHMs)
2 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
University Water System draws water from 1 well and 1 surface water intake.
Annual water quality report
University 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