Dauphin County, PA
The federal environmental record for Dauphin County (population 288,800): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
2
federal cleanup sites
4
PFAS-detecting water systems
14
TRI facilities
50
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Middletown Air Field | Middletown | deleted | 06/10/1986 |
Drinking water: PFAS testing
Public water systems serving Dauphin with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| PA AMER WATER CO PA7220017 | PFPeA: 6.9 ng/L PFBA: 6.7 ng/L PFHxA: 5.7 ng/L | above final limit |
| MILLERSBURG WATER AUTH PA7220034 | PFOS: 10 ng/L PFOA: 4.5 ng/L PFHxS: 3.5 ng/L | above final limit |
| SUEZ MIDDLETOWN PA7220038 | PFOS: 12.7 ng/L PFOA: 7.5 ng/L PFPeA: 6.9 ng/L | above final limit |
| SUEZ WATER PA PA7220015 | PFPeA: 5.4 ng/L PFHxA: 4.5 ng/L PFBS: 4.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
14 facilities in Dauphin filed TRI reports for 2024, totalling 114k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| DURA-BOND PIPE LLC | STEELTON | Manganese, Xylene (mixed isomers) | 57k lb |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | Manganese compounds, Copper compounds | 46k lb |
| MOUNTAIN RIDGE METALS LLC. | MILLERSBURG | Xylene (mixed isomers) | 5k lb |
| DAUPHIN PRECISION TOOL LLC | MILLERSBURG | Barium And Barium Compounds | 2k lb |
| HIGHSPIRE TERMINALS - DE LLC/HIGHSPIRE TERMINAL | MIDDLETOWN | Toluene, Xylene (mixed isomers) | 2k lb |
| LIBRANDI'S MACHINE INC. | MIDDLETOWN | Nickel And Nickel Compounds, Lead And Lead Compounds | 496 lb |
| PRATT & WHITNEY AMERCON | MIDDLETOWN | Nickel | 255 lb |
| UNIVAR SOLUTIONS USA - MIDDLETOWN BRANCH | MIDDLETOWN | Chlorine | 19 lb |
| WENGER FEEDS LLC-SPRING GLEN (F/K/A WENGER FEED MILL INC) | SPRING GLEN | Zinc compounds, Manganese And Manganese Compounds | 7 lb |
| MACK TRUCKS INC REMANUFACTURING CENTER | MIDDLETOWN | Lead | 6 lb |
| MOLD BASE INDUSTRIES INC. | HARRISBURG | Chromium | 5 lb |
| PENNSY SUPPLY INC/FIDDLERS ELBOW NORTH QUARRY | MIDDLETOWN | Lead, Polycyclic aromatic compounds | 0 lb |
| DAYTON PARTS LLC | HARRISBURG | - | 0 lb |
| HERSHEY CO WEST HERSHEY PLANT | HERSHEY | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 861 tank facilities in Dauphin: 524 tanks in service and 2,072 closed. 454 fuel releases are on record, of which 50 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Dauphin as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Dauphin, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- MIDDLETOWN AIR FIELDMIDDLETOWN
- PA AIR NATL GUARD 193RD SPEC OPR GRPMIDDLETOWN