Home hazard report for 19726 — New Castle, DE
ZIP 19726 is served by Municipal Services Commission: no health-based violations since 2016, latest lead result 0 ppb, PFAS 2 detected. New Castle is in EPA radon zone 2.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jan 2023). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).
Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code.
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Where ZIP 19726 is
blue: utility service area · scroll or pinch to zoomDrinking water: Municipal Services Commission
Health-based violations
No health-based violations reported since 2016.
Lead
90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.
PFAS (“forever chemicals”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFBA | 147.2 ppt | 1 of 2 | — |
| PFPeA | 122.9 ppt | 1 of 2 | — |
| PFOS | not detected | 0 of 2 | 4 ppt MCL |
| PFBS | not detected | 0 of 2 | — |
| PFHpA | not detected | 0 of 2 | — |
| PFHxS | not detected | 0 of 2 | — |
| PFNA | not detected | 0 of 2 | — |
| PFOA | not detected | 0 of 2 | 4 ppt MCL |
| PFHxA | not detected | 0 of 2 | — |
| PFDA | not detected | 0 of 2 | — |
| HFPO-DA (GenX) | not detected | 0 of 2 | — |
EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.
Radon in New Castle
EPA radon zone 2 — moderate potential. Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.
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 |
|---|---|---|
| New Castle Spill New Castle County, Delaware · EPA ID DED058980442 | Cleaned up & deleted | <1 mi |
| New Castle Steel New Castle County, Delaware · EPA ID DED980705255 | Cleaned up & deleted | <1 mi |
| East Basin Road Groundwater New Castle, Delaware · EPA ID DEN000304044 | Active (final NPL) | 1.8 mi |
| Delaware Sand & Gravel Landfill New Castle County, Delaware · EPA ID DED000605972 | Active (final NPL) | 2.1 mi |
| Army Creek Landfill New Castle County, Delaware · EPA ID DED980494496 | Active (final NPL) | 2.3 mi |
| E.I. du Pont de Nemours & Co., Inc. (Newport Pigment Plant Landfill) Newport, Delaware · EPA ID DED980555122 | Active (final NPL) | 3.9 mi |
| Halby Chemical Co. New Castle, Delaware · EPA ID DED980830954 | Active (final NPL) | 4.2 mi |
| Koppers Co., Inc. (Newport Plant) Newport, Delaware · EPA ID DED980552244 | Active (final NPL) | 4.3 mi |
| Standard Chlorine of Delaware, Inc. Delaware City, Delaware · EPA ID DED041212473 | Active (final NPL) | 5.7 mi |
| Tybouts Corner Landfill New Castle County, Delaware · EPA ID DED000606079 | Active (final NPL) | 5.8 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 19726
Who supplies drinking water to ZIP 19726?
Municipal Services Commission (EPA ID DE0000634), a groundwater (wells) system serving about 5,549 people.
Is there lead in New Castle, DE tap water?
The utility’s latest 90th-percentile lead result (Jan 2023) was 0 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.
Does New Castle, DE water have PFAS?
PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).
Has the water system in 19726 had violations?
No health-based violations reported since 2016.
Are there Superfund sites near 19726?
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: New Castle Spill (0.6 mi, Cleaned up & deleted); New Castle Steel (0.7 mi, Cleaned up & deleted); East Basin Road Groundwater (1.8 mi, Active (final NPL)).
Is radon a problem in New Castle?
New Castle is in EPA radon zone 2 (moderate potential). Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.