Public water system record
Midland-Lonaconing
Serves an area of Allegany County, MD that includes Lonaconing, Moscow, Barton and 3 more places · 5,000 people served
Federal records show 2 health-based violations and 7 monitoring/reporting issues for Midland-Lonaconing in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 7
Key facts
- Midland-Lonaconing draws water from 6 wells and 3 reservoirs.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 63 µg/L, federal limit 60 µg/L (1.1 times the limit), 2025.
- Most recent enforcement action: boil water order by Maryland, February 2000.
- Record on file since 1991, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,740 unknown out of 1,740 service lines.
Check whether Midland-Lonaconing 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 |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 63 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
220 | Apr 1, 2025 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2023 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Fluoride
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
Full record since 1991
EPA's records for Midland-Lonaconing go back to 1991. Before October 19, 2016 they list 6 health-based violations (5 resolved, 1 archived by EPA without a recorded fix) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 5 | 3 |
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 2 | 6 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began February 2000, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 2000 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1999 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1999 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1996 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1992 | Resolved |
Enforcement actions
Maryland regulators issued 6 boil water orders to Midland-Lonaconing between 1989 and 2000. The most recent was a boil water order in February 2000.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 19, 2000 | Maryland | Boil water order | 1 violation (1 health-based): Surface Water Treatment Rule |
| Oct 1, 1999 | Maryland | Boil water order | 1 violation (1 health-based): Surface Water Treatment Rule |
| Sep 10, 1999 | Maryland | Boil water order | 1 violation (1 health-based): Surface Water Treatment Rule |
| Sep 7, 1996 | Maryland | Boil water order | 1 violation (1 health-based): Surface Water Treatment Rule |
| Jun 11, 1993 | Maryland | Boil water order | 1 violation |
| Dec 15, 1989 | Maryland | Boil water order | 1 violation |
What the violations mean
Haloacetic Acids (HAA5)
1 incidentHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Interim Enhanced Surface Water Treatment Rule
1 incidentThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Where the water comes from
Midland-Lonaconing draws water from 6 wells and 3 reservoirs.
Annual water quality report
Midland-Lonaconing 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 Maryland.
Certified drinking water labs by state EPA guidance for private wells