Public water system · MD0060218
ActiveTwin Arch Mobile Home Park
At a glance
Twin Arch Mobile Home Park (PWSID MD0060218) is an active community water system in Carroll County, Maryland. It reports serving 50 people through 20 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
20
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Twin Arch Mobile Home Park compare with other water systems in Carroll County?
By EPA's size categories, Twin Arch Mobile Home Park is a very small system (500 people or fewer). Carroll County has 208 active public water systems. Its population served is well below the county average of 618 people per system, and accounts for less than 0.1% of the 128,551 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 Twin Arch 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 Twin Arch Mobile Home Park?
EPA lists Twin Arch 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. 185 of the 208 active systems in Carroll County (89%) are also privately owned.
Does Twin Arch Mobile Home Park have drinking water violations?
EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in October 2021. The violations listed here began between September 1993 and October 2021. By type: 5 monitoring and reporting, 4 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (8 of them). EPA lists 9 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2007-10-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1998-07-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1998-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
| 1995-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1994-01-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1994-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1993-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 10 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.
Twin Arch Mobile Home Park: frequently asked questions
Who runs Twin Arch Mobile Home Park?
Twin Arch Mobile Home Park (PWSID MD0060218) is a community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Twin Arch Mobile Home Park serve?
Twin Arch Mobile Home Park reports serving 50 people through 20 service connections in Carroll County, Maryland.
Where does Twin Arch 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 Twin Arch Mobile Home Park have any drinking water violations?
EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in October 2021. 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 Twin Arch 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. EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in October 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find Twin Arch Mobile Home Park's water quality report?
As a community water system, Twin Arch 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 Carroll County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Westminster | Carroll | 35,256 | Community | Surface water |
| Freedom District | Carroll | 24,867 | Community | Surface water |
| Town of Mount Airy | Carroll | 9,890 | Community | Groundwater |
| City of Taneytown | Carroll | 6,750 | Community | Groundwater |
| Town of Hampstead | Carroll | 6,600 | Community | Groundwater |
| Town of Manchester | Carroll | 4,954 | 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, “Twin Arch Mobile Home Park, PWSID MD0060218, Maryland”, https://aquacensus.com/water-systems/maryland/twin-arch-mobile-home-park-md0060218 (data as of October 1, 2026).