ARTESIAN WATER COMPANY vs WILMINGTON WATER DEPARTMENT
Water quality comparison — risk levels, violations, PFAS records, and contaminants
Quick Answer
Both utilities share the same risk level (safe). ARTESIAN WATER COMPANY has 0 open health-based violations and 1309 PFAS records. WILMINGTON WATER DEPARTMENT has 0 open health-based violations and 232 PFAS records.
Delaware · DE0000552
No Concerns Detected
Water meets all safety standards with no detected exceedances.
0
Open violations
1309
PFAS records
Delaware · DE0000663
No Concerns Detected
Water meets all safety standards with no detected exceedances.
0
Open violations
232
PFAS records
Head-to-Head Comparison
| Metric | ARTESIAN WATER COMPANY | WILMINGTON WATER DEPARTMENT |
|---|---|---|
| State | Delaware | Delaware |
| Risk Level | No Concerns Detected | No Concerns Detected |
| Population Served | 231,114 | 107,976 |
| Open Health Violations | 0 | 0 |
| Total Violations | 0 | 5 |
| PFAS Records | 1309 | 232 |
| Ownership | Private | Local |
| Service Type | Surface water | Surface water |
| City Served | Bear,Hockessin | Wilmington |
Contaminants in Violation Records
ARTESIAN WATER COMPANY
No named contaminants in violation records.
WILMINGTON WATER DEPARTMENT
- Nitrate
- Coliform (TCR)
Key Differences
ARTESIAN WATER COMPANY has 1309 PFAS records vs. 232 for WILMINGTON 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 — ARTESIAN WATER COMPANY or WILMINGTON WATER DEPARTMENT?
Both utilities share the same risk level (safe). Both utilities have similar violation profiles — review the full data above to decide based on specific contaminants that concern you.
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.