ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: probably a private well

No community water system’s service area covers the center of ZIP 19347, and no system lists it. In rural areas that usually means private wells. The EPA does not regulate private wells: owners should test once a year for coliform bacteria and nitrate, and every few years for arsenic, lead, uranium and other local concerns. Your county health department can recommend a certified lab.

Radon in Chester

EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Superfund sites nearby

Site	Status	Distance
Spectron, Inc. Elkton, Maryland · EPA ID MDD000218008	Active (final NPL)	4.9 mi
Hockessin Groundwater Hockessin, Delaware · EPA ID DEN000303920	Active (final NPL)	7.3 mi
Newark South Ground Water Plume Newark, Delaware · EPA ID DEN000306877	Active (final NPL)	8.1 mi
Dwyer Property Ground Water Plume Elkton, Maryland · EPA ID MDD985366756	Active (final NPL)	9.5 mi
Ordnance Products, Inc. Cecil County, Maryland · EPA ID MDD982364341	Active (final NPL)	9.7 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 19347

Does ZIP 19347 have public water?

No community water system service area covers the center of ZIP 19347, and none lists it. Homes here most likely use private wells, which no agency tests — owners should test yearly for bacteria and nitrate, and every few years for arsenic, lead and other local concerns.

Are there Superfund sites near 19347?

The nearest active Superfund site is 4.9 miles away. Sites within 10 miles: Spectron, Inc. (4.9 mi, Active (final NPL)); Hockessin Groundwater (7.3 mi, Active (final NPL)); Newark South Ground Water Plume (8.1 mi, Active (final NPL)).

Is radon a problem in Chester?

Chester is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.