Water Quality Reports > Philadelphia PA Drinking Water Quality Report
Water Quality Score
B-
Philadelphia PA Drinking Water Quality
Water Quality Factors
  • Failed some Health Guidelines
  • Failed some Legal Limits
  • Failed some Reporting and Monitoring Requirements
  • Uses Chlorine disinfectant

The water department of Philadelphia draws half its water from the Schuylkill River, and half from the Delaware River. The city has three drinking water treatment plants: Baxter, Belmont, and Queen Lane. Baxter Water Treatment Plant is the largest, treating an average of 200 million gallons a day. It provides water for almost 60% of Philadelphia's population. The Belmont and Queen Lane Water Treatment plants use water from the Schuyikill River, which has a higher mineral content and is slightly harder than the Delaware River. In recent years, radioactive elements and potentially carcinogenic disinfectant byproducts have exceeded health guidelines.

Philadelphia, PA Drinking Water Top Suppliers

Water SupplierWater Supply SourcePopulation ServedService Connections
Philadelphia Water Department
1101 Market St, Aramark Tower Philadelphia, PA 19107
Surface Water 1,600,000 475,190
Data Sources:
EPA 2012 SDWIS Report

Philadelphia, PA Water Quality Recent Violations

There was 1 health violation found in Philadelphia, PA by the EPA in the 2010-2012 reporting periods. They are listed in the table below.

Drinking Water Rule or ContaminantDate Violation Last Reported Violation TypeViolationNumber of ViolationsEnforcement Action
Surface Water Treatment Rule 2011-02-22 Health-Based: Treatment Technique violation Treatment Technique (SWTR and GWR) 2 Compliance Achieved

There were 4 other violations found in Philadelphia, PA by the EPA in the 2010-2012 reporting periods. They are listed in the table below.

Drinking Water Rule or ContaminantDate Violation Last Reported Violation TypeViolationNumber of ViolationsAvg ViolationMax ViolationState Standard Unit of MeasureEnforcement Action
Long Term 1 Interim Enhanced Surface Water Treatment Rule 2012-06-18 Monitoring or reporting violation Monitoring, Turbidity (Enhanced SWTR) 1 0 Violation/Reminder Notice
Long Term 1 Interim Enhanced Surface Water Treatment Rule 2011-03-16 Monitoring or reporting violation Monitoring, Turbidity (Enhanced SWTR) 1 0 Compliance Achieved
Stage 1 Disinfection By Product Rule 2010-09-16 Monitoring or reporting violation Monitoring and Reporting (DBP) 1 0 Violation/Reminder Notice
Long Term 1 Interim Enhanced Surface Water Treatment Rule 2009-11-23 Monitoring or reporting violation Monitoring, Turbidity (Enhanced SWTR) 1 0 Public Notification Received
To see the latest EPA monitoring report for visit the EPA at SDWIS Report

Philadelphia, PA Water Quality Historical Violations

Detected
16
Above Health Limits
1
Below Limits
13
ContaminantTotal Tests Positive ResultsAbove Health LimitsAbove Legal LimitsEPA RegulatedMax ResultHealth Limit Legal Limit
Total trihalomethanes (TTHMs) 44 44 0 5 Yes 118 - 80
Total haloacetic acids (HAAs) 44 44 0 1 Yes 107 70 60
Radium-228 4 2 2 0 Yes 3.20 0.02 5
Alachlor (Lasso) 5 1 0 0 Yes 0.14 40 2
Alpha particle activity (incl. radon & uranium) 4 1 0 0 Yes 3.72 - 15
Arsenic (total) 10 2 0 0 Yes 2 2 10
Atrazine 5 5 0 0 Yes 0.72 3 3
Dichloromethane (methylene chloride) 21 1 0 0 Yes 0.60 500 5
Lindane 6 1 0 0 Yes 0.01 0.20 0.20
Nitrate 38 38 0 0 Yes 4.89 10 10
Pentachlorophenol 5 1 0 0 Yes 0.02 30 1
Simazine 5 2 0 0 Yes 0.13 4 4

38 Water Contaminants were tested for in the Philadelphia, PA area but not found in drinking water between 2004 and 2009.

Data Source: NYTimes.com

The scores and results above reflect a summary of the historical drinking water testing results that has been documented by the EPA and other sources. The color coding of the symbols was developed by WaterFilterComparisions.com as an easy way for individuals to gauge the historical effectiveness of Philadelphia water suppliers in meeting legal and health regulations in providing clean drinking water. This should only be used as a guide, and WaterFilterComparisons recommends you contact Philadelphia water suppliers to better understand the quality of the drinking water in Philadelphia, .