Public water system · PA3061165
ActiveCornerstone Plaza
At a glance
Cornerstone Plaza (PWSID PA3061165) is an active transient non-community water system in Berks County, Pennsylvania. It reports serving 150 people through 8 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in March 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
8
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cornerstone Plaza compare with other water systems in Berks County?
By EPA's size categories, Cornerstone Plaza is a very small system (500 people or fewer). Berks County has 471 active public water systems. Its population served is well below the county average of 799 people per system, and accounts for less than 0.1% of the 376,539 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 Cornerstone Plaza is roughly in line with 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 Cornerstone Plaza?
EPA lists Cornerstone Plaza 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. 346 of the 471 active systems in Berks County (73%) are also privately owned.
Does Cornerstone Plaza have drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in March 2019. The violations listed here began between July 2004 and March 2019. By type: 2 contaminant level above the legal limit, 1 monitoring and reporting, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2019-03-31 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2016-08-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2016-07-16 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2006-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 5 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.
Cornerstone Plaza: frequently asked questions
Who runs Cornerstone Plaza?
Cornerstone Plaza (PWSID PA3061165) is a transient non-community water system privately owned. It is regulated by the PA state drinking water program.
How many people does Cornerstone Plaza serve?
Cornerstone Plaza reports serving 150 people through 8 service connections in Berks County, Pennsylvania.
Where does Cornerstone Plaza 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 Cornerstone Plaza have any drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in March 2019. 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 Cornerstone Plaza'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 5 violations for this system; 3 are health-based, and the most recent began in March 2019. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Cornerstone Plaza's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cornerstone Plaza 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 Berks County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Reading Area Water Authority | Berks | 95,100 | Community | Surface water |
| Paw Penn District | Berks | 28,508 | Community | Groundwater |
| Paw Glen Alsace Div | Berks | 24,951 | Community | Purchased surface water |
| Muhlenberg Twp Muni Auth | Berks | 22,400 | Community | Groundwater |
| Kutztown Borough Water | Berks | 14,200 | Community | Groundwater under influence of surface water |
| Shillington Muni Auth | Berks | 13,300 | Community | Purchased 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, “Cornerstone Plaza, PWSID PA3061165, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/cornerstone-plaza-pa3061165 (data as of October 1, 2026).