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WaterSafety

Philadelphia Water Department

Philadelphia, Pennsylvania · PWSID: PA1510001

C
Water Safety Score
70/100
1,600,000
Population Served
Surface water
Source Type
0
Health Violations
0
Contaminant Exceedances

Detected Contaminants

ContaminantDetected LevelMCL (Limit)StatusSample Date
Chlorine2 ppm4 ppmWithin LimitOct 1, 2016

Violation History

Chlorine
MonitoringOct 1, 2016 - Nov 30, 2016
Resolved
Enforcement: 180029145001
Chlorine
MonitoringNov 1, 2016 - Jan 17, 2017
Resolved
Enforcement: 180029145001
Chlorine
MonitoringApr 1, 2018 - Dec 3, 2018
Resolved
Enforcement: 191626051001
Chlorine
MonitoringJun 1, 2022 - Jul 6, 2023
Resolved
Enforcement: 232584576001
Chlorine
MonitoringJun 1, 2022 - Jul 6, 2023
Resolved
Enforcement: 232584576007
Chlorine
MonitoringJun 1, 2022 - Aug 1, 2022
Resolved
Enforcement: 2325845-75993
Chlorine
MonitoringJun 1, 2023 - Jul 20, 2023
Resolved
Enforcement: 242504281001
Chlorine
MonitoringJun 1, 2023 - Jul 20, 2023
Resolved
Enforcement: 232504281001
Chlorine
MonitoringDec 1, 2024 - Feb 26, 2025
Resolved
Enforcement: 25121412001
Chlorine
MonitoringSep 1, 2025 - Sep 30, 2025
Open
Enforcement: 26296072

Frequently Asked Questions

Philadelphia Water Department has a Water Safety Score of C (70/100). The system serves 1,600,000 people and has 0 health violations on record. Check the contaminant table above for specific detected substances.

Philadelphia Water Department has 0 contaminant exceedances above EPA health guidelines. See the full contaminant detection table above for all tested substances and their levels relative to legal limits and health guidelines.

The Water Safety Score (0-100, grades A through F) is based on contaminant levels relative to legal limits, health guideline exceedances, violation history, and enforcement actions. Higher scores indicate fewer concerns.

If your water system has violations, request the Consumer Confidence Report from your utility, consider getting an independent water test from a certified lab, and look into certified water filters for specific contaminants of concern. For lead, run cold water for 30 seconds before drinking.

Sources: EPA SDWIS, EWG Tap Water Database
Last updated:

Water quality data sourced from EPA's Safe Drinking Water Information System (SDWIS). Safety scores are calculated based on contaminant levels, violations, and enforcement history. This is not a substitute for your utility's official Consumer Confidence Report.