Is Hockessin, DE Tap Water Safe to Drink?
Hockessin tap water meets federal Safe Drinking Water Act standards but 1 of 1 ZIP code 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 Hockessin Get Its Water?
Water in Hockessin, DE is provided by 2 public water systems: ARTESIAN WATER COMPANY and WILMINGTON WATER DEPARTMENT.
How Is Hockessin 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 Hockessin Tap Water?
The following contaminants were detected most frequently in Hockessin public water systems. 1 of 1 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 Hockessin
Based on EPA monitoring data, 1 of 1 ZIP codes in Hockessin 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 Hockessin Tap Water
Is Hockessin tap water safe to drink?
Hockessin tap water meets Safe Drinking Water Act requirements but 1 of 1 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 Hockessin tap water?
The most commonly detected contaminants in Hockessin water systems include: PFPeA, lithium, PFTrDA. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Hockessin get its drinking water?
Hockessin receives water from 2 public water systems, including ARTESIAN WATER COMPANY.
Do I need a water filter in Hockessin?
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 Hockessin tap water tested?
Public water systems in Hockessin 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 Hockessin
- 19707 - Hockessin tap water report Higher concern
Water utilities serving Hockessin, 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
Also covers / overlaps with
- North Star, DE · CDP
- Piedmont CCD, DE · Township
- Pike Creek, DE · CDP
- Pike Creek-Central Kirkwood CCD, DE · Township