Public water system · PA6430077
ActiveSouth Pymatuning
At a glance
South Pymatuning (PWSID PA6430077) is an active community water system in Mercer County, Pennsylvania. It reports serving 641 people through 211 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in July 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
641
Service connections
211
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does South Pymatuning compare with other water systems in Mercer County?
By EPA's size categories, South Pymatuning is a small system (501 to 3,300 people). Mercer County has 124 active public water systems. Its population served is about 17% below the county average of 769 people per system, and accounts for 0.7% of the 95,322 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 South Pymatuning 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 244 Pennsylvania systems (3.4%) list purchased surface water as their primary source.
Who owns and regulates South Pymatuning?
EPA lists South Pymatuning as owned by a local 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. 14 of the 124 active systems in Mercer County (11%) are also owned by a local government.
Does South Pymatuning have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in July 2018. The violations listed here began between April 2009 and July 2018. By type: 6 contaminant level above the legal limit, 4 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (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 |
|---|---|---|---|---|
| 2018-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2018-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2009-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2009-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2009-04-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2009-04-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2009-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2009-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | 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.
South Pymatuning: frequently asked questions
Who runs South Pymatuning?
South Pymatuning (PWSID PA6430077) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does South Pymatuning serve?
South Pymatuning reports serving 641 people through 211 service connections in Mercer County, Pennsylvania.
Where does South Pymatuning get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does South Pymatuning have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in July 2018. 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 South Pymatuning'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, 6 are health-based, and the most recent began in July 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find South Pymatuning's water quality report?
As a community water system, South Pymatuning 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 Mercer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aqua Pa Shenango Valley WTP | Mercer | 48,000 | Community | Surface water |
| Aqua Pa Greenville | Mercer | 8,600 | Community | Surface water |
| Grove City Boro Water Dept | Mercer | 7,871 | Community | Groundwater |
| Sharpsville Boro Water Co | Mercer | 5,029 | Community | Purchased surface water |
| Pine Twp Water Distr System | Mercer | 3,082 | Community | Purchased groundwater |
| Reynolds Water Company | Mercer | 2,370 | 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, “South Pymatuning, PWSID PA6430077, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/south-pymatuning-pa6430077 (data as of October 1, 2026).