Public water system · PA1150818
ActiveMarsh Creek State Park
At a glance
Marsh Creek State Park (PWSID PA1150818) is an active transient non-community water system in Chester County, Pennsylvania. It reports serving 1,630 people through 6 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,630
Service connections
6
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Marsh Creek State Park compare with other water systems in Chester County?
By EPA's size categories, Marsh Creek State Park is a small system (501 to 3,300 people). Chester County has 254 active public water systems. Its population served is about 40% above the county average of 1,167 people per system, and accounts for 0.6% of the 296,348 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Marsh Creek State Park is about 11 times that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Pennsylvania has 4,429 active transient non-community water systems, 61% of the state's 7,217 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,632 Pennsylvania systems (92%) list groundwater as their primary source.
Who owns and regulates Marsh Creek State Park?
EPA lists Marsh Creek State Park as owned by a state government. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 254 active systems in Chester County (0.4%) are also owned by a state government.
Does Marsh Creek State Park have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2026. The violations listed here began between January 2023 and May 2026. By type: 5 public notice, recordkeeping or other, 5 monitoring and reporting, 1 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Public Notice (5 of them). EPA lists 6 as resolved, 4 as archived and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-05-13 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-04-01 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Unaddressed |
| 2025-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Archived |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Archived |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | 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.
Marsh Creek State Park: frequently asked questions
Who runs Marsh Creek State Park?
Marsh Creek State Park (PWSID PA1150818) is a transient non-community water system owned by a state government. It is regulated by the PA state drinking water program.
How many people does Marsh Creek State Park serve?
Marsh Creek State Park reports serving 1,630 people through 6 service connections in Chester County, Pennsylvania.
Where does Marsh Creek State 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 Marsh Creek State Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2026. 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 Marsh Creek State 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, one is health-based, and the most recent began in May 2026. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Marsh Creek State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Marsh Creek State Park is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Chester County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pa American Royersford | Chester | 49,508 | Community | Surface water |
| Aqua Pa West Chester | Chester | 48,600 | Community | Surface water |
| Pa American Coatesville | Chester | 36,960 | Community | Surface water |
| Aqua Pa Uwchlan | Chester | 35,518 | Community | Purchased surface water |
| Phoenixville Water Dept | Chester | 16,599 | Community | Surface water |
| Downingtown Water Authority | Chester | 9,900 | Community | Surface water |
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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, “Marsh Creek State Park, PWSID PA1150818, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/marsh-creek-state-park-pa1150818 (data as of October 1, 2026).