Dauphin, PA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Dauphin in Pennsylvania · Population: 287,484
Dauphin, PA is tracked across three EPA datasets covering 18 Toxics Release Inventory (TRI) facilities, 33 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 47/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 1.1M lbs of reported toxic releases under EPCRA Section 313, while 10 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 48 and a peak AQI of 105 in 2024, with 56% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 206 (56%) | 158 | 2 | 105 |
| 2023 | 169 (46%) | 184 | 7 | 255 |
| 2022 | 198 (54%) | 164 | 3 | 127 |
| 2021 | 155 (43%) | 202 | 2 | 127 |
| 2020 | 219 (60%) | 144 | 3 | 116 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Pennsylvania, see the EPA's AirNow.gov.
Water Systems (33)
| System | Population | Violations |
|---|---|---|
| VEOLIA WATER | 110,000 | 0 |
| CAPITAL REGION WATER | 66,540 | 0 |
| PA AMER WATER CO | 50,200 | 0 |
| VEOLIA MECHANICSBURG | 45,013 | 3 |
| VEOLIA MIDDLETOWN | 9,600 | 0 |
| VEOLIA WATER BETHEL | 7,809 | 0 |
| VEOLIA WATER PA DALLAS | 7,563 | 0 |
| VEOLIA NEWBERRY SYSTEM | 6,480 | 0 |
| PA AMERICAN WATER STEELTON | 6,428 | 23 |
| MILLERSBURG WATER AUTH | 4,600 | 0 |
| VEOLIA WATER PA SHAVERTOWN | 3,472 | 0 |
| LYKENS BORO AUTH | 3,220 | 22 |
| TOWER CITY AUTHORITY | 3,150 | 0 |
| ELIZABETHVILLE AREA AUTH | 2,700 | 0 |
| WILLIAMSTOWN BORO AUTH | 2,390 | 0 |
| HALIFAX AREA WATER & SEWER AUT | 2,278 | 0 |
| ROYALTON BORO | 1,083 | 1 |
| GRATZ BORO WATER REVENUE FUND | 738 | 0 |
| WONDERVIEW WATER CO | 350 | 2 |
| VEOLIA WATER PA NOXEN | 315 | 0 |
| PILLOW BORO AUTH | 312 | 0 |
| SUEZ WATER KENSINGTON SYSTEM | 204 | 0 |
| VEOLIA WATER PA HARVEYS LAKE | 200 | 0 |
| LOYALTON WATER ASSN | 100 | 1 |
| VEOLIA WATER PA BROWN MANOR | 91 | 1 |
| ARBOR MANOR APTS | 76 | 0 |
| CAMP HEBRON CWS | 75 | 0 |
| N ANNVILLE MHP | 72 | 1 |
| MOUNTAINDALE APARTMENTS | 50 | 0 |
| PLEASANT VILLAGE MHP | 40 | 0 |
| LAKESIDE MHP | 40 | 3 |
| STONEY RUN APT | 40 | 5 |
| LONDONDERRY TWP WATER SYS | 36 | 0 |
TRI Facilities (18)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Dura-Bond Pipe LLC | 511.3K lbs |
| 2 | Cleveland-Cliffs Steelton LLC | 194.4K lbs |
| 3 | The Ames Cos Inc. | 175.4K lbs |
| 4 | Dauphin Precision Tool LLC | 79.0K lbs |
| 5 | Mountain Ridge Metals Llc. | 73.9K lbs |
| 6 | Wenger Feeds Llc-Spring Glen (f/k/a Wenger Feed Mill Inc) | 21.1K lbs |
| 7 | Highspire Terminals - de Llc/highspire Terminal | 20.2K lbs |
| 8 | Librandi's Machine Inc. | 2.1K lbs |
| 9 | Airgas USA LLC | 1.8K lbs |
| 10 | Pratt & Whitney Amercon | 1.3K lbs |
| 11 | Phoenix Contact Development & Manufacturing Inc. | 148 lbs |
| 12 | Univar Solutions USA - Middletown Branch | 80 lbs |
| 13 | Pennsy Supply Inc Paxton St Ready Mix | 34 lbs |
| 14 | Mack Trucks Inc Remanufacturing Center | 29 lbs |
| 15 | Mold Base Industries Inc. | 20 lbs |
| 16 | Pennsy Supply Inc/fiddlers Elbow North Quarry | 0 lbs |
| 17 | Hershey Co West Hershey Plant | 0 lbs |
| 18 | Dayton Parts LLC | 0 lbs |
Cities in Dauphin (6)
Frequently Asked Questions
What is the environmental risk level in Dauphin, Pennsylvania? ▼
Are there Superfund sites in Dauphin? ▼
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Is the drinking water safe in Dauphin? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.