EPA · discharge permits by state
Discharge permits in Delaware
- 92Current permits
- 3Major dischargers
- 52Individual permits
A major discharger is one EPA rates as significant on volume, toxicity or the water it reaches; the rest are minors. An individual permit is written for one operation, while general permit coverage applies a statewide permit to a site that qualifies for it.
By what is permitted in Delaware
By city
Permits
Major dischargers first. Not every permit in Delaware is listed here.
| Permit holder | NPDES ID | City | Program | Discharger | Receiving water |
|---|---|---|---|---|---|
| CALPINE MID-ATLANTIC | DE0000558 | WILMINGTON | Major | Matson Run-Shellpot Creek | |
| DELAWARE CITY REFINING CO. | DE0000256 | DELAWARE CITY | Major | Red Lion Creek-Delaware River | |
| SEAFORD WASTEWATER TREATMENT PLANT | DE0020265 | SEAFORD | Publicly owned treatment works | Major | NANTICOKE RIVER |
| ALLAN MYERS DE, INC. | DEI000243 | WILMINGTON | Industrial stormwater | Minor | Brandywine Creek |
| ALSCO INC. | DEPIU000I | NEW CASTLE | Minor | ||
| ASHLAND LLC HERCULES RESEARCH CENTER | DEPIU000H | WILMINGTON | Minor | ||
| ASTRA ZENECA PHARMACEUTICALS LP. | DEPIU000K | NEWARK | Minor | ||
| BALTIMORE AIRCOIL COMPANY | DE0051047 | MILFORD | Minor | Upper Mispillion River | |
| BRAINERD, LLC | DEPIU000D | SEAFORD | Minor | ||
| BRIDGEVILLE STP | DEL020249 | BRIDGEVILLE | Minor | Headwaters Nanticoke River | |
| CHEMOURS HOLLY RUN | DEPIU001M | NEWPORT | Minor | ||
| CHRISTIANA HOSPITAL | DEPIU000N | NEWARK | Minor | ||
| CITY OF SEAFORD WWTF | DEL020265 | SEAFORD | Minor | Butler Mill Branch-Nanticoke River | |
| CONSTRUCT IN-TRANSIT MUNITIONS FACILITY, B1202 | 03R10I00U | DOVER | Construction stormwater | Minor | Little River-Delaware Bay |
| CRODA | DEPIU000O | NEW CASTLE | Minor | ||
| DELAWARE CITY STP | DEL021555 | NEWARK | Minor | C&D Canal East-Delaware River | |
| DELAWARE CITY WASTEWATER TREATMENT PLANT | DE0021555 | NEW CASTLE | Publicly owned treatment works | Minor | C&D Canal East-Delaware River |
| DELAWARE RIVER & BAY AUTHORITY | NJG155101 | OUT OF STATE | Minor | ||
| DELAWARE SAND AND GRAVEL | DEPIU000R | NEW CASTLE | Minor | ||
| DELDOT IN KENT COUNTY | DER040023 | DOVER | Minor | Upper Saint Jones River | |
| DIAMOND MATERIALS | DEPIU000S | WILMINGTON | Minor | ||
| DOVER | DER040021 | DOVER | Minor | ||
| DOVER AFB - BUILDING 270 | DER10F00C | DOVER AFB | Construction stormwater | Minor | |
| DOVER WIPES CO. | DEPIU0004 | DOVER | Minor | ||
| DPIF2 DE 1-2 | DE0000523 | WILMINGTON | Minor | Little Mill Creek | |
| DRPI | DEPIU000P | NEW CASTLE | Minor | ||
| DSWA CENTRAL SOLID WASTE MANAGEMENT CENTER | DEPIU0002 | FELTON | Minor | ||
| DUPONT ELECTRONIC MATERIALS CMP, LLC-BUILDING 8 | DEPIU001E | NEWARK | Minor | ||
| DUPONT PERFORMANCE POLYMERS | DEPIU001N | NEWARK | Minor | ||
| DUPONT SPECIALTY PRODUCTS USA, LLC. | DEPIU000W | NEWARK | Minor | ||
| DUPONT SPECIALTY PRODUCTS-EXPERIMENTAL STATION | DEPIU000T | WILMINGTON | Minor | ||
| ENERGY CENTER DOVER, LLC | DEPIU0003 | DOVER | Minor | ||
| FOODLINER | DEPIU000Z | NEWARK | Minor | ||
| FUJI | DEPIU0010 | NEW CASTLE | Minor | ||
| FUNNY FARM | DEA170084 | FELTON | Concentrated animal feeding operations | Minor | |
| GARRISON ENERGY CENTER LLC | DEPIU0008 | DOVER | Minor | ||
| GE AVIATION | DEPIU000Y | NEWARK | Minor | ||
| HANOVER FOODS, INC. | DE0051063 | CLAYTON | Minor | Duck Creek | |
| HERITAGE CONCRETE | DEI000361 | WILMINGTON | Industrial stormwater | Minor | Christina River |
| HOWARD SEYMOUR WATER RECLAMATION PLANT | DEL021512 | LEWES | Minor | Canary Creek-Broadkill River |