States / DE
Delaware
26
Superfund NPL sites
17
water systems with PFAS detections
14
systems above a final limit
5.6M lb
reported 2024 releases
Superfund NPL sites, by county
- none
- 1 to 2
- 3 to 5
- 6 to 8
- 9 or more
Counties
| County | NPL | Cleanup sites | PFAS systems | TRI facilities | Open tank releases |
|---|---|---|---|---|---|
| New Castle County | 15 | 32 | 5 | 27 | 51 |
| Sussex County | 5 | 19 | 11 | 14 | 43 |
| Kent County | 6 | 10 | 1 | 10 | 17 |
Superfund sites in Delaware
- Army Creek LandfillNew Castle County
- Blades GroundwaterBlades
- Chem-Solv, Inc.Cheswold
- Coker's Sanitation Service LandfillsKent County
- Delaware City PVC PlantDelaware City
- Delaware Sand & Gravel LandfillNew Castle County
- Dover Air Force BaseDover
- Dover Gas Light Co.Dover
- E.I. du Pont de Nemours & Co., Inc. (Newport Pigment Plant Landfill)Newport
- East Basin Road GroundwaterNew Castle
- Georgetown North GroundwaterGeorgetown
- Halby Chemical Co.New Castle
- Harvey & Knott Drum, Inc.Kirkwood
- Hockessin GroundwaterHockessin
- Koppers Co., Inc. (Newport Plant)Newport
- Millsboro TCEMillsboro
- NCR Corp. (Millsboro Plant)Millsboro
- New Castle SpillNew Castle County
- New Castle SteelNew Castle County
- Newark South Ground Water PlumeNewark
- Sealand LimitedMount Pleasant
- Standard Chlorine of Delaware, Inc.Delaware City
- Sussex County Landfill No. 5Laurel
- Tybouts Corner LandfillNew Castle County
- Tyler Refrigeration PitSmyrna
- Wildcat LandfillDover