Public water system record
Corwith Water Supply
Serves Corwith, Hancock County, IA · 266 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Corwith 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
- 3
Key facts
- Corwith Water Supply draws water from 2 wells.
- Record on file since 1985, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 1 lead and 135 unknown out of 152 service lines.
Check whether Corwith 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.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
|
Groundwater Rule
OTHER
|
Jan 14, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
Full record since 1985
EPA's records for Corwith Water Supply go back to 1985. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 3 | 4 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Di(2-ethylhexyl) phthalate, began January 1996, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Di(2-ethylhexyl) phthalate
Contaminant limit exceeded
|
Jan 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1993 | Resolved |
Where the water comes from
Corwith Water Supply draws water from 2 wells.
Annual water quality report
Corwith 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Corwith Water Supply for a copy.
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