DENTON, MD · Caroline County
JONESTOWN WATER SYSTEM Water System
Consumer Confidence Report status
JONESTOWN WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for JONESTOWN WATER SYSTEM.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Maryland’s official records. Always confirm current status with Maryland before making decisions based on this information.
System facts
- System ID (PWSID)
- MD0050004
- System type
- Community Water System
- Population served
- 150
- Service connections
- 56
- Ownership
- privately owned
- Water source
- groundwater (wells)
JONESTOWN WATER SYSTEM is one of 1,050 community water systems in Maryland in the 500 or fewer people size category, serving 150 people from groundwater.
As of August 1, 2026, its federal record holds 4 entries between 1987 and 1988, all of which EPA lists as closed. Nothing has been added since 1988.
None of the 4 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedNitrate
July 1, 1988 – September 30, 1988
ArchivedMaximum Contaminant Level Violation, Average
Health-basedNitrate
April 1, 1988 – June 30, 1988
ArchivedMaximum Contaminant Level Violation, Average
Health-basedNitrate
January 1, 1988 – March 31, 1988
ArchivedMaximum Contaminant Level Violation, Average
Health-basedNitrate
December 3, 1987 – January 2, 1988
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 1988 – September 30, 1988 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Archived |
| April 1, 1988 – June 30, 1988 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Archived |
| January 1, 1988 – March 31, 1988 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Archived |
| December 3, 1987 – January 2, 1988 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- February 19, 1998State Compliance achievedgeneral compliance action — not tied to a specific violation on record
Common questions
Is JONESTOWN WATER SYSTEM required to publish a Consumer Confidence Report?
- Yes. JONESTOWN WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is JONESTOWN WATER SYSTEM’s next Consumer Confidence Report due?
- JONESTOWN WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does JONESTOWN WATER SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for JONESTOWN WATER SYSTEM.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
BROWN, KEVIN
410-479-0520
DENTON, MD 21629