Public water system record
Mount Pleasant Water Co., Inc.
Serves an area of St. Mary's County, MD · 150 people served
Federal records show 2 health-based violations and 11 monitoring/reporting issues for Mount Pleasant Water Co., Inc. in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 11
Key facts
- Mount Pleasant Water Co., Inc. draws water from 2 wells.
- Most recent formal enforcement: compliance order (no penalty) by Maryland, November 2019.
- Record on file since 1991, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 43 unknown out of 43 service lines.
Check whether Mount Pleasant Water Co., Inc. 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 |
|---|---|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Oct 1, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 1, 2019 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Arsenic
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2017 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1991
EPA's records for Mount Pleasant Water Co., Inc. go back to 1991. Before October 19, 2016 they list no health-based violations and 33 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 8 |
| 2000s | 0 | 5 |
| 2010 to October 18, 2016 | 0 | 20 |
| October 19, 2016 to 2019 | 2 | 9 |
| 2020s | 0 | 2 |
Enforcement actions
Maryland regulators took 1 formal enforcement action against Mount Pleasant Water Co., Inc. and issued 1 boil water order in 2019. The most recent was a compliance order (no penalty) in November 2019.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 24, 2019 | Maryland | Compliance order (no penalty) | 2 violations (2 health-based): Stage 1 Disinfection Byproducts Rule, Groundwater Rule |
| Nov 21, 2019 | Maryland | Boil water order | 2 violations (2 health-based): Stage 1 Disinfection Byproducts Rule, Groundwater Rule |
What the violations mean
Stage 1 Disinfection Byproducts Rule
1 incidentThe system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule
Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk
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
Mount Pleasant Water Co., Inc. draws water from 2 wells.
Annual water quality report
Mount Pleasant Water Co., Inc. 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 Mount Pleasant Water Co., Inc. 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 Maryland.
Certified drinking water labs by state EPA guidance for private wells