Public water system · PA7360113
ActiveEast Cocalico Township Auth
At a glance
East Cocalico Township Auth (PWSID PA7360113) is an active community water system in Lancaster County, Pennsylvania. It reports serving 6,735 people through 2,582 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,735
Service connections
2,582
Primary source
GU
Groundwater under influence of surface water
System type
CWS
Community water system
System record
How does East Cocalico Township Auth compare with other water systems in Lancaster County?
By EPA's size categories, East Cocalico Township Auth is a medium system (3,301 to 10,000 people). Lancaster County has 402 active public water systems. Its population served is about 6.7 times the county average of 1,008 people per system, and accounts for 1.7% of the 405,283 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 East Cocalico Township Auth is roughly in line with 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. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 40 Pennsylvania systems (0.6%) list groundwater under influence of surface water as their primary source.
Who owns and regulates East Cocalico Township Auth?
EPA lists East Cocalico Township Auth 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. 34 of the 402 active systems in Lancaster County (8.5%) are also owned by a local government.
Does East Cocalico Township Auth have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2025. The violations listed here began between July 2016 and January 2025. By type: 10 monitoring and reporting, 1 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Nitrate (2 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 |
|---|---|---|---|---|
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Trichloroethylenecode 2984 | Yes | Resolved |
| 2022-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2020-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Oxamylcode 2036 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4-Dcode 2105 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | 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.
East Cocalico Township Auth: frequently asked questions
Who runs East Cocalico Township Auth?
East Cocalico Township Auth (PWSID PA7360113) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does East Cocalico Township Auth serve?
East Cocalico Township Auth reports serving 6,735 people through 2,582 service connections in Lancaster County, Pennsylvania.
Where does East Cocalico Township Auth get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does East Cocalico Township Auth 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 January 2025. 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 East Cocalico Township Auth'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 January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find East Cocalico Township Auth's water quality report?
As a community water system, East Cocalico Township Auth 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 Lancaster County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Lancaster | Lancaster | 120,000 | Community | Surface water |
| Columbia Water Co | Lancaster | 25,200 | Community | Surface water |
| Ephrata Area Joint Authority | Lancaster | 24,500 | Community | Surface water |
| East Hempfield Water Auth | Lancaster | 20,988 | Community | Purchased surface water |
| Elizabethtown Area Water | Lancaster | 19,000 | Community | Surface water |
| Mt Joy Boro Auth | Lancaster | 15,261 | Community | Groundwater under influence of 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, “East Cocalico Township Auth, PWSID PA7360113, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/east-cocalico-township-auth-pa7360113 (data as of October 1, 2026).