Public water system record
Zwanzig MHP
Serves Gravois Mills, Morgan County, MO · 50 people served
Federal records show 1 health-based violation and 11 monitoring/reporting issues for Zwanzig MHP in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 11
Key facts
- Zwanzig MHP draws water from 1 well.
- Most recent formal enforcement: compliance order with a penalty by Missouri, February 2007.
- Record on file since 1993, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 39 service lines.
Check whether Zwanzig MHP 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 7, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Groundwater Rule
OTHER
|
Aug 9, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2023 | Active |
|
Public Notice
OTHER
|
Aug 2, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Public Notice
OTHER
|
May 6, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2016 | Resolved |
Full record since 1993
EPA's records for Zwanzig MHP go back to 1993. Before October 19, 2016 they list 6 health-based violations (5 resolved, 1 archived by EPA without a recorded fix) and 16 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 5 |
| 2000s | 5 | 9 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 1 | 10 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2006, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1998 | Archived |
Enforcement actions
Missouri regulators took 2 formal enforcement actions against Zwanzig MHP between 2005 and 2007. The most recent was a compliance order with a penalty in February 2007.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 16, 2007 | Missouri | Compliance order with a penalty | 10 violations (5 health-based): Total Coliform, Lead and Copper Rule |
| Jul 17, 2005 | Missouri | Signed compliance agreement | 3 violations (3 health-based): Total Coliform |
What the violations mean
Groundwater Rule
1 incidentThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Zwanzig MHP draws water from 1 well.
Annual water quality report
Zwanzig MHP 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 Zwanzig MHP 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 Missouri.
Certified drinking water labs by state EPA guidance for private wells