Public water system record
Pierson Water Supply
Serves Pierson, Woodbury County, IA · 345 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Pierson 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
- 1
Key facts
- Pierson Water Supply draws water from 3 wells.
- Most recent formal enforcement: signed compliance agreement by Iowa, December 1992.
- Record on file since 1983, with 11 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 36 unknown out of 185 service lines.
Check whether Pierson 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 |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
Full record since 1983
EPA's records for Pierson Water Supply go back to 1983. Before October 19, 2016 they list 11 health-based violations (8 resolved, 3 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 4 | 1 |
| 1990s | 6 | 2 |
| 2000s | 1 | 0 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2004, Resolved.
Show all 11 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2004 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1995 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
May 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Aug 1, 1993 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1993 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1986 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1985 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1984 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1983 | Archived |
Enforcement actions
Iowa regulators took 2 formal enforcement actions against Pierson Water Supply between 1986 and 1992. The most recent was a signed compliance agreement in December 1992.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 16, 1992 | Iowa | Signed compliance agreement | 1 violation (1 health-based): Nitrate |
| Sep 30, 1986 | Iowa | Signed compliance agreement | 1 violation (1 health-based): Nitrate |
Where the water comes from
Pierson Water Supply draws water from 3 wells.
Annual water quality report
Pierson 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 Pierson 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