Public water system record
Patuxent Naval Air Station (Navfac-Wash)
Serves an area of St. Mary's County, MD · 22,000 people served
Federal records show no health-based violations and 13 monitoring/reporting issues for Patuxent Naval Air Station (Navfac-Wash) 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
- 13
Key facts
- Patuxent Naval Air Station (Navfac-Wash) draws water from 17 wells.
- Record on file since 1991, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 150 unknown out of 182 service lines.
Check whether Patuxent Naval Air Station (Navfac-Wash) 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 |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jun 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nickel
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Mercury
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Cadmium
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Barium
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 1991
EPA's records for Patuxent Naval Air Station (Navfac-Wash) go back to 1991. Before October 19, 2016 they list 2 health-based violations (1 resolved, 1 archived by EPA without a recorded fix) and 42 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 22 |
| 2000s | 1 | 15 |
| 2010 to October 18, 2016 | 0 | 5 |
| 2020s | 0 | 13 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2000, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1991 | Archived |
Where the water comes from
Patuxent Naval Air Station (Navfac-Wash) draws water from 17 wells.
Annual water quality report
Patuxent Naval Air Station (Navfac-Wash) 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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