Public water system · MD0050206
ActiveHolly Cove Harbor Mobile Home Park
At a glance
Holly Cove Harbor Mobile Home Park (PWSID MD0050206) is an active community water system in Caroline County, Maryland. It reports serving 45 people through 20 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
45
Service connections
20
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Holly Cove Harbor Mobile Home Park compare with other water systems in Caroline County?
By EPA's size categories, Holly Cove Harbor Mobile Home Park is a very small system (500 people or fewer). Caroline County has 51 active public water systems. Its population served is well below the county average of 390 people per system, and accounts for 0.2% of the 19,890 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active community water system reports serving 6,703 people, so Holly Cove Harbor Mobile Home Park is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Maryland has 422 active community water systems, 14% of the state's 2,992 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,870 Maryland systems (96%) list groundwater as their primary source.
Who owns and regulates Holly Cove Harbor Mobile Home Park?
EPA lists Holly Cove Harbor Mobile Home Park as privately owned. The MD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 36 of the 51 active systems in Caroline County (71%) are also privately owned.
Does Holly Cove Harbor Mobile Home Park have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2024. The violations listed here began between November 2017 and October 2024. By type: 3 reporting, 3 required treatment not met, 3 monitoring and reporting and 3 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (5 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2023-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-04-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2018-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-04-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2018-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-11-30 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
The 12 most recent violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Holly Cove Harbor Mobile Home Park: frequently asked questions
Who runs Holly Cove Harbor Mobile Home Park?
Holly Cove Harbor Mobile Home Park (PWSID MD0050206) is a community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Holly Cove Harbor Mobile Home Park serve?
Holly Cove Harbor Mobile Home Park reports serving 45 people through 20 service connections in Caroline County, Maryland.
Where does Holly Cove Harbor Mobile Home Park get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Holly Cove Harbor Mobile Home Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2024. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Holly Cove Harbor Mobile Home Park's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find Holly Cove Harbor Mobile Home Park's water quality report?
As a community water system, Holly Cove Harbor Mobile Home Park must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Caroline County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Town of Denton | Caroline | 4,500 | Community | Groundwater |
| Town of Federalsburg | Caroline | 2,450 | Community | Groundwater |
| Town of Greensboro | Caroline | 1,878 | Community | Groundwater |
| Town of Ridgely | Caroline | 1,600 | Community | Groundwater |
| Royal Farms #135 | Caroline | 1,178 | Transient non-community | Groundwater |
| North Caroline High School | Caroline | 1,028 | Non-transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Holly Cove Harbor Mobile Home Park, PWSID MD0050206, Maryland”, https://aquacensus.com/water-systems/maryland/holly-cove-harbor-mobile-home-park-md0050206 (data as of October 1, 2026).