Public water system record
Town of Perryville
Serves Perryville, Cecil County, MD · 4,413 people served
Federal records show 5 health-based violations and 37 monitoring/reporting issues for Town of Perryville in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 5
- Resolved
- 2
- Unresolved
- 0
- Archived by EPA
- 3
- Any acute record
- No
- Monitoring issues, last 10 years
- 37
Key facts
- Town of Perryville draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 87 µg/L, federal limit 80 µg/L (1.1 times the limit), 2025.
- Record on file since 1993, with 19 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 595 unknown out of 595 service lines.
Check whether Town of Perryville 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 |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Jul 1, 2020 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
LASSO
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Simazine
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Endrin
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
LASSO
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Atrazine
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Simazine
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Endrin
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Chlordane
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
OTHER
|
Mar 20, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Mar 1, 2018 | Resolved |
Full record since 1993
EPA's records for Town of Perryville go back to 1993. Before October 19, 2016 they list 19 health-based violations (19 resolved) and 35 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 3 |
| 2000s | 11 | 16 |
| 2010 to October 18, 2016 | 8 | 16 |
| October 19, 2016 to 2019 | 0 | 3 |
| 2020s | 5 | 34 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2016, Resolved.
Show all 19 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 102 µg/L, federal limit 60 µg/L (1.7 times the limit)
|
Jul 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 98 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Apr 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 68 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 97 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 113 µg/L, federal limit 60 µg/L (1.9 times the limit)
|
Jan 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 60 µg/L (1.4 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Jul 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jan 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89.5 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jul 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92.2 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Apr 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86.79 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jan 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89.2 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jul 1, 2006 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 63.1 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
Jan 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jan 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2005 | Resolved |
What the violations mean
Total Trihalomethanes (TTHMs)
4 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Long Term 2 Enhanced Surface Water Treatment Rule
1 incidentThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Where the water comes from
Town of Perryville draws water from 1 surface water intake.
Annual water quality report
Town of Perryville 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