Public water system · PA7210029
ActivePa American Water Co West
At a glance
Pa American Water Co West (PWSID PA7210029) is an active community water system in Cumberland County, Pennsylvania. It reports serving 105,127 people through 41,820 service connections. Its primary water source is surface water, and EPA lists it as under public/private ownership. EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
105,127
Service connections
41,820
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Pa American Water Co West compare with other water systems in Cumberland County?
By EPA's size categories, Pa American Water Co West is a very large system (more than 100,000 people). Cumberland County has 94 active public water systems, and Pa American Water Co West is the largest of them by population served. Its population served is about 40 times the county average of 2,619 people per system, and accounts for 43% of the 246,153 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 Pa American Water Co West is about 16 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 246 Pennsylvania systems (3.4%) list surface water as their primary source.
Who owns and regulates Pa American Water Co West?
EPA lists Pa American Water Co West as under public/private ownership. 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. 16 of the 94 active systems in Cumberland County (17%) are also under public/private ownership.
Does Pa American Water Co West have drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in January 2022. The violations listed here began between August 1976 and January 2022. By type: 7 monitoring and reporting and 2 required treatment not met. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (2 of them). EPA lists 7 as resolved and 2 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 |
|---|---|---|---|---|
| 2022-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2016-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2009-01-01 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 1993-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1991-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1976-08-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 9 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.
Pa American Water Co West: frequently asked questions
Who runs Pa American Water Co West?
Pa American Water Co West (PWSID PA7210029) is a community water system under public/private ownership. It is regulated by the PA state drinking water program.
How many people does Pa American Water Co West serve?
Pa American Water Co West reports serving 105,127 people through 41,820 service connections in Cumberland County, Pennsylvania.
Where does Pa American Water Co West get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Pa American Water Co West have any drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in January 2022. 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 Pa American Water Co West'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 9 violations for this system; 2 are health-based, and the most recent began in January 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Pa American Water Co West's water quality report?
As a community water system, Pa American Water Co West 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 Cumberland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Veolia Mechanicsburg | Cumberland | 45,013 | Community | Surface water |
| Carlisle Water Trmt Plt | Cumberland | 26,000 | Community | Surface water |
| Shippensburg Boro Water Auth | Cumberland | 17,800 | Community | Surface water |
| South Middleton Twp Water Auth | Cumberland | 11,695 | Community | Purchased surface water |
| N Middleton Water Auth | Cumberland | 8,455 | Community | Surface water |
| Middlesex Twp Muni Auth | Cumberland | 3,527 | 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, “Pa American Water Co West, PWSID PA7210029, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/pa-american-water-co-west-pa7210029 (data as of October 1, 2026).