Public water system record
Westerville City PWS
Serves Westerville, Franklin County and Delaware County, OH · 39,000 people served
Federal records show no health-based violations and no monitoring or reporting issues for Westerville City PWS 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
- Westerville City PWS draws water from 3 wells and 1 surface water intake.
- Record on file since 1982, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 567 unknown out of 12,547 service lines.
Check whether Westerville City PWS 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 1982
EPA's records for Westerville City PWS go back to 1982. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 11 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 8 |
| 2000s | 0 | 3 |
| 2010 to October 18, 2016 | 3 | 0 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2016, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jul 1, 2015 | Resolved |
Where the water comes from
Westerville City PWS draws water from 3 wells and 1 surface water intake. 1 other public water system has an emergency connection to Westerville City PWS.
Annual water quality report
Westerville City PWS 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 Ohio.
Certified drinking water labs by state EPA guidance for private wells