Public water system · PA6620036
ActiveMasons Mobile City
At a glance
Masons Mobile City (PWSID PA6620036) is an active community water system in Warren County, Pennsylvania. It reports serving 140 people through 67 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, 5 are health-based, and the most recent began in March 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
140
Service connections
67
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Masons Mobile City compare with other water systems in Warren County?
By EPA's size categories, Masons Mobile City is a very small system (500 people or fewer). Warren County has 61 active public water systems. Its population served is well below the county average of 501 people per system, and accounts for 0.5% of the 30,533 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active community water system reports serving 6,703 people, so Masons Mobile City 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. Pennsylvania has 1,762 active community water systems, 24% 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 Masons Mobile City?
EPA lists Masons Mobile City as privately owned. 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. 36 of the 61 active systems in Warren County (59%) are also privately owned.
Does Masons Mobile City have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2026. The violations listed here began between July 2025 and March 2026. By type: 7 monitoring and reporting and 5 required treatment not met. The contaminant or rule involved most often is Polychlorinated biphenyls (PCBs), total (4 of them). EPA lists 7 as resolved, 4 as archived and 1 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 |
|---|---|---|---|---|
| 2026-03-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Archived |
| 2026-02-17 | Required treatment not metTreatment Technique, Corrective/Expedited Actions (RTCR) · code 2C | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2026-02-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Archived |
| 2026-01-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Archived |
| 2026-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,3,7,8-TCDD (dioxin)code 2063 | No | Resolved |
| 2026-01-01 | Required treatment not metTreatment Technique, Corrective/Expedited Actions (RTCR) · code 2C | Revised Total Coliform Rulecode 8000 | Yes | Unaddressed |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Polychlorinated biphenyls (PCBs), totalcode 2383 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Polychlorinated biphenyls (PCBs), totalcode 2383 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,3,7,8-TCDD (dioxin)code 2063 | No | Resolved |
| 2025-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Polychlorinated biphenyls (PCBs), totalcode 2383 | No | Resolved |
| 2025-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2025-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Polychlorinated biphenyls (PCBs), totalcode 2383 | 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.
Masons Mobile City: frequently asked questions
Who runs Masons Mobile City?
Masons Mobile City (PWSID PA6620036) is a community water system privately owned. It is regulated by the PA state drinking water program.
How many people does Masons Mobile City serve?
Masons Mobile City reports serving 140 people through 67 service connections in Warren County, Pennsylvania.
Where does Masons Mobile City 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 Masons Mobile City have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 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 Masons Mobile City'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, 5 are health-based, and the most recent began in March 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Masons Mobile City's water quality report?
As a community water system, Masons Mobile City 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 Warren County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pa American Water Co Warren | Warren | 14,650 | Community | Groundwater |
| Youngsville Mun Waterworks | Warren | 1,957 | Community | Groundwater |
| North Warren Muni Authority | Warren | 1,749 | Community | Groundwater |
| Sheffield Twp Municipal Auth | Warren | 1,075 | Community | Groundwater |
| Southwest Warren Co Mun Auth | Warren | 1,040 | Community | Surface water |
| Aqua Pa Clarendon | Warren | 840 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Masons Mobile City, PWSID PA6620036, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/masons-mobile-city-pa6620036 (data as of October 1, 2026).