Public water system record
Jonestown Water System
Serves an area of Caroline County, MD · 150 people served
Federal records show no health-based violations and 5 monitoring/reporting issues for Jonestown Water System 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
- 5
Key facts
- Jonestown Water System draws water from 2 wells.
- Record on file since 1987, with 10 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 55 unknown out of 55 service lines.
Check whether Jonestown Water System 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 |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
Full record since 1987
EPA's records for Jonestown Water System go back to 1987. Before October 20, 2016 they list 10 health-based violations (6 resolved, 4 archived by EPA without a recorded fix) and 74 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 4 | 0 |
| 1990s | 2 | 2 |
| 2000s | 4 | 67 |
| 2010 to October 19, 2016 | 0 | 5 |
| October 20, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 20, 2016: Total Coliform, began October 2005, Resolved.
Show all 10 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 1988 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1988 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1988 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Dec 3, 1987 | Archived |
Where the water comes from
Jonestown Water System draws water from 2 wells.
Annual water quality report
Jonestown Water System 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 Jonestown Water System 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