Pennsylvania Water Systems

Pennsylvania public water system directory

This directory lists the public water system profiles currently available for Pennsylvania. It is not a complete statewide inventory, and it is not an address-level service lookup.

Compare Systems

3 available Pennsylvania system records

Compare the PWSID, linked community, source-water context, and report year currently available for each Pennsylvania record.

All systems are shown.

PWSIDSystemCitiesCountiesSource waterViolation records shownLatest CCR
PA1510001PHILADELPHIA WATER DEPARTMENTPhiladelphiaNot verifiedThe 2025 report identifies the Delaware and Schuylkill Rivers as Philadelphia's surface-water sourcesNo violation records shown in available records2025
PA6250028ERIE CITY WATER AUTHORITYErieNot verifiedThe 2025 Erie Water Works report identifies Lake Erie as its exclusive surface-water sourceNo violation records shown in available records2025
PA3060059READING AREA WATER AUTHORITYReadingNot verifiedThe 2025 report identifies Lake Ontelaunee as the water supply and says the Authority can also draw directly from Maiden CreekNo violation records shown in available records2025
PWSIDPA1510001
SystemPHILADELPHIA WATER DEPARTMENT
CitiesPhiladelphia
CountiesNot verified
Source waterThe 2025 report identifies the Delaware and Schuylkill Rivers as Philadelphia's surface-water sources
Violation records shownNo violation records shown in available records
Latest CCR2025
PWSIDPA6250028
SystemERIE CITY WATER AUTHORITY
CitiesErie
CountiesNot verified
Source waterThe 2025 Erie Water Works report identifies Lake Erie as its exclusive surface-water source
Violation records shownNo violation records shown in available records
Latest CCR2025
PWSIDPA3060059
SystemREADING AREA WATER AUTHORITY
CitiesReading
CountiesNot verified
Source waterThe 2025 report identifies Lake Ontelaunee as the water supply and says the Authority can also draw directly from Maiden Creek
Violation records shownNo violation records shown in available records
Latest CCR2025

Profiles

Open a Pennsylvania public water system profile

Each of these 3 profiles keeps its source links, annual-report details, limitations, and summarized CCR entries together.

Last updated: EPA data

PHILADELPHIA WATER DEPARTMENT

PWSID PA1510001

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System-level profile for Philadelphia. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.

System type
Communities
Philadelphia
Counties
County not listed
Latest CCR
2025
Last updated: EPA data

ERIE CITY WATER AUTHORITY

PWSID PA6250028

View system profile

System-level profile for Erie. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.

System type
Communities
Erie
Counties
County not listed
Latest CCR
2025
Last updated: EPA data

READING AREA WATER AUTHORITY

PWSID PA3060059

View system profile

System-level profile for Reading. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.

System type
Communities
Reading
Counties
County not listed
Latest CCR
2025