CITY OF LOCK HAVEN WATER DEPT vs PHILADELPHIA WATER DEPARTMENT
Water quality comparison — risk levels, violations, PFAS records, and contaminants
Quick Answer
PHILADELPHIA WATER DEPARTMENT has a lower risk classification (safe). CITY OF LOCK HAVEN WATER DEPT has 0 open health-based violations and 116 PFAS records. PHILADELPHIA WATER DEPARTMENT has 0 open health-based violations and 348 PFAS records.
Pennsylvania · PA4180048
Low Concern
Minor detections below regulatory limits. Routine monitoring adequate.
0
Open violations
116
PFAS records
Pennsylvania · PA1510001
No Concerns Detected
Water meets all safety standards with no detected exceedances.
0
Open violations
348
PFAS records
Head-to-Head Comparison
| Metric | CITY OF LOCK HAVEN WATER DEPT | PHILADELPHIA WATER DEPARTMENT |
|---|---|---|
| State | Pennsylvania | Pennsylvania |
| Risk Level | Low Concern | No Concerns Detected |
| Population Served | 10,000 | 1,600,000 |
| Open Health Violations | 0 | 0 |
| Total Violations | 35 | 8 |
| PFAS Records | 116 | 348 |
| Ownership | Local | Local |
| Service Type | Surface water | Surface water |
| City Served | — | Philadelphia |
Contaminants in Violation Records
CITY OF LOCK HAVEN WATER DEPT
- Total Trihalomethanes (TTHMs)
- Haloacetic Acids (HAA5)
- Coliform (TCR)
- Lead
- Nitrate
- Cryptosporidium
PHILADELPHIA WATER DEPARTMENT
- Nitrate
Key Differences
CITY OF LOCK HAVEN WATER DEPT has a low risk rating vs. safe for PHILADELPHIA WATER DEPARTMENT.
CITY OF LOCK HAVEN WATER DEPT has 116 PFAS records vs. 348 for PHILADELPHIA WATER DEPARTMENT.
What Should I Do?
If either utility shows open violations or elevated PFAS records, consider:
- Installing a reverse osmosis filter — removes PFAS, lead, arsenic, nitrates, and most heavy metals.
- Requesting your utility’s annual Consumer Confidence Report (CCR) for the most current test results.
- Ordering a certified lab water test if you want contaminant-specific data for your address.
Frequently Asked Questions
Which is safer — CITY OF LOCK HAVEN WATER DEPT or PHILADELPHIA WATER DEPARTMENT?
PHILADELPHIA WATER DEPARTMENT has a lower risk classification (safe). PHILADELPHIA WATER DEPARTMENT has 0 open health-based violations compared to 0 for the other system.
What does "open health-based violation" mean?
An open health-based violation means a water system has exceeded an EPA Maximum Contaminant Level (MCL) or failed to meet a treatment technique — and the violation has not yet been resolved. These are the most serious type of water quality violations.
How current is this data?
Violation data comes from EPA's Safe Drinking Water Information System (SDWIS), which is updated as utilities report. PFAS data comes from EPA's UCMR 5 monitoring (2023–2025). Risk levels are recalculated daily.
What does PWSID mean?
PWSID stands for Public Water System ID — a unique federal identifier assigned to each community water system. You can use it to look up a system in EPA's ECHO database.