Is New Castle, DE Tap Water Safe to Drink?
New Castle tap water meets federal Safe Drinking Water Act standards but 1 of 2 ZIP codes show detections above EPA health guidelines, primarily for PFPeA. A certified filter is recommended for households that want an additional layer of protection.
Where Does New Castle Get Its Water?
Water in New Castle, DE is provided by 4 public water systems: ARTESIAN WATER COMPANY, SUEZ WATER DELAWARE, WILMINGTON WATER DEPARTMENT and MUNICIPAL SERVICES COMMISSION.
How Is New Castle Tap Water Treated?
Treated water is disinfected using free chlorine and chloramines. Treatment includes air stripping, conventional treatment (coagulation, flocculation, and filtration), direct filtration, granular activated carbon filtration, groundwater disinfection, ion exchange and membrane filtration.
What's in New Castle Tap Water?
The following contaminants were detected most frequently in New Castle public water systems. 1 of 2 ZIP codes showed detections above EPA health guidelines.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| PFPeA | 0.106 µg/L | 0.003 µg/L | 1 ZIP | Above guideline |
| lithium | 9 µg/L | — | 0 ZIPs | Within guideline |
| PFTrDA | 0.007 µg/L | — | 0 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| HFPO-DA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for New Castle
Based on EPA monitoring data, 1 of 2 ZIP codes in New Castle have recorded detections above EPA health guidelines. Sensitive populations such as infants, pregnant individuals, and those with weakened immune systems may benefit from an additional layer of protection such as a certified point-of-use filter.
Best Broad-Spectrum Filters for This Water Profile
This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about New Castle Tap Water
Is New Castle tap water safe to drink?
New Castle tap water meets Safe Drinking Water Act requirements but 1 of 2 ZIP codes show contaminant levels above EPA health-based guidelines. A certified point-of-use filter adds an extra layer of protection.
What contaminants are in New Castle tap water?
The most commonly detected contaminants in New Castle water systems include: PFPeA, lithium, PFTrDA. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does New Castle get its drinking water?
New Castle receives water from 4 public water systems, including ARTESIAN WATER COMPANY.
Do I need a water filter in New Castle?
If your ZIP code is among those with detections above EPA health guidelines, choose a filter certified for the specific contaminants shown in your ZIP report. Reverse osmosis is generally the broadest option for PFAS, lithium, and many other dissolved contaminants.
How often is New Castle tap water tested?
Public water systems in New Castle are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-02-19.
Tap water reports by ZIP in New Castle
- 19720 - New Castle CCD, New Castle tap water report Higher concern
- 19726 - New Castle tap water report No recent data
Water utilities serving New Castle, DE
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- ARTESIAN WATER COMPANYAction advised
- SUEZ WATER DELAWAREAction advised
- MUNICIPAL SERVICES COMMISSIONLooks OK
Also covers / overlaps with
- Bear, DE · CDP
- New Castle CCD, DE · Township
- Red Lion CCD, DE · Township
- St. Georges, DE · CDP
- Wilmington Manor, DE · CDP