Public water system record
Tiffin Water Supply
Serves Tiffin, Johnson County, IA · 4,512 people served
Federal records show no health-based violations and no monitoring or reporting issues for Tiffin 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
- Tiffin Water Supply draws water from 3 wells.
- Most recent formal enforcement: signed compliance agreement by Iowa, February 2008.
- Record on file since 1987, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1 unknown out of 2,866 service lines.
Check whether Tiffin 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 1987
EPA's records for Tiffin Water Supply go back to 1987. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 0 |
| 2000s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2001, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2001 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 1987 | Resolved |
Enforcement actions
Iowa regulators took 1 formal enforcement action against Tiffin Water Supply in 2008. The most recent was a signed compliance agreement in February 2008.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 6, 2008 | Iowa | Signed compliance agreement | 1 violation: Haloacetic Acids (HAA5) |
Where the water comes from
Tiffin Water Supply draws water from 3 wells. 1 other community water system buys water from Tiffin Water Supply.
Community systems that buy water from it
- Iadu Clear MHP LLC Oxford, IA
Annual water quality report
Tiffin 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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