Public water system · PA3066215
ActiveGreat Oak Spring Water Co
At a glance
Great Oak Spring Water Co (PWSID PA3066215) is an active transient non-community water system in Berks County, Pennsylvania. It reports serving 25 people through 32 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
32
Primary source
GWP
Purchased groundwater
System type
TNCWS
Transient non-community water system
System record
How does Great Oak Spring Water Co compare with other water systems in Berks County?
By EPA's size categories, Great Oak Spring Water Co 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 Great Oak Spring Water Co is well below 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 54 Pennsylvania systems (0.7%) list purchased groundwater as their primary source.
Who owns and regulates Great Oak Spring Water Co?
EPA lists Great Oak Spring Water Co 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 Great Oak Spring Water Co have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2015. The violations listed here began between January 1989 and October 2015. By type: 10 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 as archived and 5 as resolved. 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. 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 |
|---|---|---|---|---|
| 2015-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Archived |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Archived |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Archived |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Archived |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1989-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
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.
Great Oak Spring Water Co: frequently asked questions
Who runs Great Oak Spring Water Co?
Great Oak Spring Water Co (PWSID PA3066215) is a transient non-community water system privately owned. It is regulated by the PA state drinking water program.
How many people does Great Oak Spring Water Co serve?
Great Oak Spring Water Co reports serving 25 people through 32 service connections in Berks County, Pennsylvania.
Where does Great Oak Spring Water Co get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Great Oak Spring Water Co have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2015. 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 Great Oak Spring Water Co'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, 2 are health-based, and the most recent began in October 2015. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Great Oak Spring Water Co's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Great Oak Spring Water Co 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, “Great Oak Spring Water Co, PWSID PA3066215, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/great-oak-spring-water-co-pa3066215 (data as of October 1, 2026).