Public water system · PA3061021
ActiveTwin Valley Middle School
At a glance
Twin Valley Middle School (PWSID PA3061021) is an active non-transient non-community water system in Berks County, Pennsylvania. It reports serving 1,140 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,140
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Twin Valley Middle School compare with other water systems in Berks County?
By EPA's size categories, Twin Valley Middle School is a small system (501 to 3,300 people). Berks County has 471 active public water systems. Its population served is about 43% above the county average of 799 people per system, and accounts for 0.3% 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 non-transient non-community water system reports serving 430 people, so Twin Valley Middle School is about 165% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Pennsylvania has 1,026 active non-transient non-community water systems, 14% 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 Twin Valley Middle School?
EPA lists Twin Valley Middle School 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. 78 of the 471 active systems in Berks County (17%) are also under public/private ownership.
Does Twin Valley Middle School have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2019. The violations listed here began between July 2011 and July 2019. By type: 10 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Chlorine (7 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 |
|---|---|---|---|---|
| 2019-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2018-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2017-01-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | 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.
Twin Valley Middle School: frequently asked questions
Who runs Twin Valley Middle School?
Twin Valley Middle School (PWSID PA3061021) is a non-transient non-community water system under public/private ownership. It is regulated by the PA state drinking water program.
How many people does Twin Valley Middle School serve?
Twin Valley Middle School reports serving 1,140 people through 1 service connection in Berks County, Pennsylvania.
Where does Twin Valley Middle School 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 Twin Valley Middle School have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 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 Twin Valley Middle School'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, one is health-based, and the most recent began in July 2019. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Twin Valley Middle School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Twin Valley Middle School is a non-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, “Twin Valley Middle School, PWSID PA3061021, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/twin-valley-middle-school-pa3061021 (data as of October 1, 2026).