State Hub
Pennsylvania Water Quality
812
Utilities in database
11.3M
Residents served
3
With open violations
354
PFAS monitored
Quick Answer
Pennsylvania public drinking water is served by 812 EPA-tracked water systems, providing service to approximately 11.3 million residents through public utilities. 3 of those systems currently have open health-based violations on record in the EPA federal database. 354 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 30% of PA residents use private wells, which fall outside federal utility compliance monitoring.
3 Pennsylvania water systems have open health-based violations recorded in EPA SDWIS. An open violation means a contaminant exceeded a federal limit and the violation has not been formally resolved in the federal database. Check individual utility pages for current status.
Open Health-Based Violations in Pennsylvania
Records sourced from EPA SDWIS. A record may be under review or resolved at the utility level but not yet updated in federal records. Water Utility Report does not determine whether water is safe to drink.
Drinking Water in Pennsylvania
Pennsylvania has 812 community water systems serving approximately 11.3 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, lead, nitrates. 30% of Pennsylvania residents rely on private wells. DEP holds primary enforcement authority under the Safe Drinking Water Act.
Highest Risk Utilities
Pennsylvania systems with open health-based violations in EPA records.
Safest Large Utilities
Pennsylvania systems with no open health violations serving 10,000+ residents.
Utilities in Pennsylvania
201–225 of 812Maidencreek Twp Water Auth
PA3060012 · 7,505 served
Littlestown Boro
PA7010022 · 7,300 served
Upper Saucon Twp Water Supply
PA3390077 · 7,300 served
Minersville Municipal Water Au
PA3540035 · 7,275 served
Blythe Twp Municipal Authority
PA3540017 · 7,100 served
Womelsdorf Robesonia Jt Auth
PA3060080 · 7,070 served
Pawc Saw Creek Estates
PA2520062 · 7,016 served
Indian Creek Valley Water Auth
PA5260011 · 7,000 served
Palmerton Municipal Authority
PA3130012 · 7,000 served
Richland Twp Water Authority
PA1090131 · 6,800 served
Sewickley Boro Water Auth
PA5020050 · 6,800 served
Neville Twp Water Dept
PA5020029 · 6,750 served
Manor Twp Jt Muni Auth
PA5030006 · 6,744 served
East Cocalico Township
PA7360113 · 6,735 served
Manheim Area Water & Sewer Aut
PA7360078 · 6,701 served
Kline Township Mun Authority
PA3540014 · 6,700 served
Harmony Boro Water Auth
PA5100042 · 6,669 served
Jersey Shore Area Jnt Wat Auth
PA4410156 · 6,600 served
Catasauqua Mun Water Works
PA3390044 · 6,598 served
Aqua Pa Fawn Lake Forest
PA2520037 · 6,533 served
Derry Boro Muni Auth
PA5650049 · 6,500 served
Monaca Boro Water Dept
PA5040039 · 6,500 served
Tyrone Boro Water Auth
PA4070021 · 6,500 served
Portage Boro Muni Auth
PA4110027 · 6,500 served
Veolia Newberry System
PA7670061 · 6,480 served
Key Contaminant Concerns in Pennsylvania
These contaminants appear most frequently in Pennsylvania utility records or pose elevated risk in this region based on EPA data.
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing. Critically, a utility's water quality report can show zero detected lead at the treatment plant while your specific tap still delivers elevated lead — because the contamination happens inside the distribution system and your home's plumbing, not at the source.
EPA limit: 15 ppb (action level)
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always caused by human activity — nitrate is converted in the digestive system to nitrite, which then reacts with hemoglobin to form methemoglobin, a form of hemoglobin that cannot carry oxygen. In the body, nitrite also reacts with amines in food to form N-nitroso compounds (nitrosamines) — known carcinogens classified by the IARC as Group 2A (probable human carcinogens). The United States applies over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination in U.S. groundwater.
EPA limit: 10 mg/L
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
City Water Reports in Pennsylvania
Tap water quality pages for Pennsylvania cities — violations, PFAS records, utility profiles, and official source links.
Pennsylvania PFAS Watchlist — all utilities with official recordsIndependent Water Testing
Find a certified lab in Pennsylvania
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Pennsylvania labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Pennsylvania
Maidencreek Twp Water Auth
Violation history, PFAS records, and official source links
Littlestown Boro
Violation history, PFAS records, and official source links
Upper Saucon Twp Water Supply
Violation history, PFAS records, and official source links
PFAS monitoring records — Pennsylvania
354 water systems in Pennsylvania with EPA UCMR 5 records
Active drinking water violations
3 open health-based violations on record — view official EPA SDWIS data
Lead in Pennsylvania drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Pennsylvania drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Pennsylvania
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Pennsylvania Drinking Water
Does Pennsylvania drinking water have PFAS?
354 Pennsylvania water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Pennsylvania water utilities have open violations?
3 systems have open health-based violations in EPA SDWIS — search for your utility
How do I test my water in Pennsylvania?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from PA tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Pennsylvania PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Pennsylvania water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Pennsylvania Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-18