Chester County, Maryland — public water systems
At a glance
3 active public water systems are filed under Chester County, Maryland in EPA's SDWIS records, together reporting 275 people served. The largest is Londonderry Court MHP, which reports serving 160 people. All 3 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
3
Population served
275
Community systems
3
Groundwater share
66.7%
How does Chester County compare with other Maryland counties?
Chester County has the 27th-most active public water systems among the 60 counties listed for active Maryland systems in EPA records; among the 27 with 3 or more systems, the median has 78. Its systems report 275 people served in total, the 37th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 92 people, well below the Maryland average of 1,947. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Chester County's drinking water come from?
By primary water source, Chester County's active systems draw on groundwater (2, 67%) and purchased surface water (1, 33%). Overall, 67% rely mainly on groundwater (including purchased groundwater) and 33% on surface water, compared with 97% and 2.6% across Maryland. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Londonderry Court MHP, draws primarily on purchased surface water.
What kinds of water systems operate in Chester County?
Chester County's active systems break down as 3 community systems (100%). 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. EPA lists their owner types as private (100%).
Water systems in Chester County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Londonderry Court MHP | Chester | 160 | Community | Purchased surface water |
| 2 | Echo Valley MHP | Chester | 60 | Community | Groundwater |
| 3 | Ridgeview MHP | Chester | 55 | Community | Groundwater |
Chester County water systems: frequently asked questions
How many public water systems are in Chester County, Maryland?
EPA's SDWIS records file 3 active public water systems under Chester County, Maryland: 3 community systems (100%).
Who supplies drinking water in Chester County, MD?
The largest community water systems filed under Chester County are Londonderry Court MHP (160 people served), Echo Valley MHP (60 people served) and Ridgeview MHP (55 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Chester County's drinking water come from groundwater or surface water?
Of the 3 active public water systems in Chester County, 67% draw mainly on groundwater and 33% on surface water, counting purchased supplies. The largest system, Londonderry Court MHP, uses purchased surface water.
Where can I find a water quality report for Chester County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 3 community systems are filed under Chester County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Chester County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Maryland water systems
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, “Public water systems in Chester County, Maryland”, https://aquacensus.com/water-systems/maryland/chester (data as of October 1, 2026).