Public water system record
Mapleton Municipal Water Plant
Serves Mapleton, Monona County, IA · 1,124 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Mapleton Municipal Water Plant 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
- Mapleton Municipal Water Plant draws water from 2 wells.
- Most recent formal enforcement: signed compliance agreement by Iowa, September 1996.
- Record on file since 1989, with 12 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 654 service lines.
Check whether Mapleton Municipal Water Plant 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 1, 2023 | Resolved |
Full record since 1989
EPA's records for Mapleton Municipal Water Plant go back to 1989. Before October 19, 2016 they list 12 health-based violations (12 resolved) and 9 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 10 | 6 |
| 2000s | 2 | 0 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began September 2000, Resolved.
Show all 12 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Aug 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1998 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1996 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Nov 1, 1995 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
May 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Feb 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1993 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Feb 1, 1992 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Feb 1, 1992 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jan 1, 1992 | Resolved |
Enforcement actions
Iowa regulators took 5 formal enforcement actions against Mapleton Municipal Water Plant between 1992 and 1996, filed as 14 records in EPA's data. The most recent was a signed compliance agreement in September 1996.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 3, 1996 | Iowa | Signed compliance agreement | 1 violation: Antimony, Total |
| Mar 25, 1995 | Iowa | Signed compliance agreement | 2 violations (2 health-based): Nitrate |
| Mar 22, 1995 | Iowa | Signed compliance agreement | 7 violations (5 health-based): Nitrate |
| May 13, 1992 | Iowa | Signed compliance agreement | 3 violations: Nitrate |
| Feb 28, 1992 | Iowa | Compliance order (no penalty) | 3 violations (3 health-based): Total Coliform |
Where the water comes from
Mapleton Municipal Water Plant draws water from 2 wells.
Annual water quality report
Mapleton Municipal Water Plant 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