Lancaster, PA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Lancaster in Pennsylvania · Population: 555,151
TRI sites such as Armstrong World Industries; Perdue Agribusiness LLC - Bainbridge Pa; Tyson Poultry Inc-New Holland Complex; SDWIS systems such as CITY OF LANCASTER; COLUMBIA WATER CO; EPHRATA AREA JOINT AUTHORITY; NPL sites such as Berkley Products Co. Dump; Elizabethtown Landfill; UGI Columbia Gas Plant anchor Lancaster, PA's EPA extract. Derived burden score 86/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Lancaster include CITY OF LANCASTER; COLUMBIA WATER CO; EAST HEMPFIELD WATER AUTH, while Armstrong World Industries leads reported TRI pounds among local Form R filers. AQS median AQI 50 / peak 125 in 2024.
Burden score 86/100 (High Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Lancaster -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Lancaster, PA: EPA TRI 2023 reporting year
Same facilities, both years
+5.1%
59 facilities that filed in 2022 and 2023
Whole inventory
+5.1%
1.3 million lb → 1.3 million lb, every facility that filed
Between the two reporting years, 4 facilities filed for the first time and 4 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Lancaster, PA's total reported releases rose from 1.3 million lb in 2022 to 1.3 million lb in 2023, based on EPA TRI filings.
- Lancaster, PA's land releases fell from 38.3 thousand lb in 2022 to 2.4 thousand lb in 2023, based on EPA TRI filings.
- Lancaster, PA's off-site transfers rose from 414.9 thousand lb in 2022 to 553.7 thousand lb in 2023, based on EPA TRI filings.
- Lancaster, PA's water releases rose from 112.5 thousand lb in 2022 to 136.3 thousand lb in 2023, based on EPA TRI filings.
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 | 189 (52%) | 174 | 3 | 125 |
| 2023 | 108 (30%) | 243 | 9 | 321 |
| 2022 | 84 (23%) | 274 | 6 | 153 |
| 2021 | 100 (27%) | 257 | 7 | 156 |
| 2020 | 177 (48%) | 184 | 4 | 153 |
Source: 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 (107)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF LANCASTER | 120,000 | 3 |
| COLUMBIA WATER CO | 25,200 | 4 |
| EPHRATA AREA JOINT AUTHORITY | 24,500 | 0 |
| EAST HEMPFIELD WATER AUTH | 20,988 | 1 |
| ELIZABETHTOWN AREA WATER | 19,000 | 4 |
| MT JOY BORO AUTH | 15,261 | 0 |
| LITITZ BORO | 9,397 | 0 |
| WARWICK TWP LITITZ SYS | 8,561 | 4 |
| NEW HOLLAND BOROUGH | 8,490 | 0 |
| MILLERSVILLE UNIV | 7,950 | 3 |
| UPPER LEACOCK TOWNSHIP | 7,734 | 4 |
| EAST COCALICO TOWNSHIP AUTH | 6,735 | 3 |
| MANHEIM AREA WATER & SEWER AUT | 6,701 | 3 |
| EAST PETERSBURG BOROUGH | 6,215 | 2 |
| WEST EARL WATER AUTHORITY | 4,327 | 4 |
| AKRON BOROUGH | 4,200 | 0 |
| EAST DONEGAL | 4,048 | 0 |
| DENVER BORO | 3,861 | 2 |
| MASONIC HOMES | 3,707 | 0 |
| QUARRYVILLE BORO | 3,150 | 1 |
| STRASBURG MUNI WATER AUTH | 3,100 | 0 |
| NORTHWESTERN LANCASTER CO AUTH | 2,968 | 0 |
| WARWICK TWP ROTHSVILLE SYSTEM | 2,846 | 0 |
| WEST COCALICO TWP WATER AUTH | 2,430 | 0 |
| WEAVERLAND VALLEY BLUE BALL | 1,946 | 0 |
| ADAMSTOWN BOROUGH | 1,800 | 0 |
| LEACOCK TWP MUN AUTH | 1,640 | 0 |
| TERRE HILL BOROUGH | 1,295 | 0 |
| BAINBRIDGE WATER AUTHORITY | 1,200 | 0 |
| CHRISTIANA MUNI WATER AUTH | 1,100 | 5 |
| LANDIS HOMES | 850 | 11 |
| QUARRYVILLE PRESBY RET COMM | 750 | 2 |
| FAIRMOUNT HOME | 483 | 2 |
| GRETNA SPRINGS | 405 | 0 |
| WESTERN HEIGHTS | 312 | 0 |
| LANCASTER EST | 304 | 1 |
| ANCHOR ESTATES | 300 | 0 |
| TAMARACK & SPREAD EAGLE MHP | 300 | 0 |
| LAKEVIEW MOBILE HOME PARK | 275 | 0 |
| HALIFAX VILLAGE | 272 | 2 |
| CONOWINGO MOBILE HOME PARK | 250 | 1 |
| HAWK VALLEY VILLAGE | 250 | 0 |
| HILLSIDE TERRACE MHP | 240 | 9 |
| CROSSWINDS MHP, LLC | 210 | 0 |
| ZERBE SISTERS | 210 | 0 |
| HOLTWOOD MOBILE HOME PARK | 196 | 0 |
| BLAIR MHP | 185 | 0 |
| COUNTRY GARDENS TRAILER COURT | 180 | 0 |
| BROOKSIDE MOBILEHOME PARK | 176 | 3 |
| LEBANON VALLEY MHC | 160 | 1 |
| ROLLING HILLS MHP | 150 | 0 |
| CONESTOGA HILLS COMMUNITY | 150 | 0 |
| MT HOPE NAZARENE RET COMM | 141 | 0 |
| CALAMUS ESTATES | 140 | 0 |
| TIMBER VILLA | 140 | 2 |
| PLATEAU VILLAGE MHP | 125 | 4 |
| HEMLOCK ACRES COURT | 125 | 0 |
| PEQUEA WATER COOP ASSN | 121 | 2 |
| VILLAGE AT SAFE HARBOR | 120 | 9 |
| DEVON CREEK DEVELOPMENT | 100 | 0 |
| COCHRANVILLE MHP | 99 | 3 |
| GROFFDALE MOBILEHOME PARK | 98 | 10 |
| MILLBROOKE EST | 98 | 1 |
| HI VIEW MOBILE HOME PARK | 97 | 7 |
| SOUTHLAND HILLS MOBILE HOMES | 96 | 4 |
| HIDEAWAY MOBILE HOME PARK | 95 | 0 |
| KINGS RIVER HAVEN MHP | 95 | 0 |
| INDEPENDENCE PARK | 91 | 0 |
| PARADISE MEADOWS | 90 | 0 |
| LOCUSTWOOD MOBILEHOME PARK | 81 | 0 |
| DEERFIELD VILLAGE MHP | 81 | 0 |
| MT IDY MOBILE HOME PARK | 80 | 10 |
| EDEN GLEN VILLAGE | 80 | 13 |
| OAKRIDGE PARK | 75 | 0 |
| RUSTIC ACRES MHP | 73 | 0 |
| MAPLEWOOD MOBILE HOME PARK | 70 | 2 |
| HICKORY FARM MHP | 70 | 0 |
| PANORAMA MHP | 70 | 3 |
| HI LAND MHP | 66 | 1 |
| CONESTOGA MOBILE HOME PARK | 65 | 0 |
| VALLEY VIEW MHP WERNERSVILLE | 60 | 3 |
| WELSH MOUNTAIN HOME | 53 | 0 |
| RESTLESS OAKS VILLAGE MHP | 52 | 0 |
| PENNY PARK | 51 | 7 |
| NOLTS RED MAPLE MHP | 51 | 2 |
| MAYBELLE MANOR MOBILE HOME PARK | 50 | 1 |
| BEARTOWN ENTERPRISE LLC | 50 | 0 |
| ACORN ACRES | 50 | 1 |
| BEAVER VALLEY MHP | 50 | 4 |
| COUNTRY VIEW VILLAGE LP | 50 | 0 |
| MONGER MOBILEHOME PARK | 48 | 0 |
| PINEHURST MANOR | 47 | 4 |
| WELLSVILLE MOBILE HOME COMMUNITY | 45 | 2 |
| SCENIC VIEW | 45 | 0 |
| DUTCH MOBILEHOME PARK | 45 | 0 |
| SCHOOLHOUSE APTS | 38 | 3 |
| O YES APTS | 35 | 10 |
| LAURELWOOD MHP | 35 | 0 |
| MAGIC CHEF MHP | 32 | 8 |
| CHRISTS HOME FOR CHILDREN | 31 | 2 |
| CALN MOBILE HOME PARK | 30 | 5 |
| RIDGE ON THE COMMONS | 30 | 0 |
| VILLAS AT GEORGETOWN | 30 | 1 |
| RIDGEVIEW MHP & APTS | 30 | 2 |
| PARK ROAD EST | 29 | 0 |
| COLLINSVILLE MHP | 28 | 0 |
| WHIPPERWILL MHP | 25 | 4 |
TRI Facilities (50)
Superfund Sites (3)
| Site Name | Status | HRS Score |
|---|---|---|
| Berkley Products Co. Dump | Deleted NPL Site | 30.00 |
| Elizabethtown Landfill | NPL Site | 28.98 |
| UGI Columbia Gas Plant | NPL Site | 50.78 |
Cities in Lancaster (37)
Frequently Asked Questions
What is the environmental risk level in Lancaster, Pennsylvania? ▼
Are there Superfund sites in Lancaster? ▼
How many toxic release facilities are in Lancaster? ▼
What is the air quality in Lancaster? ▼
Is the drinking water safe in Lancaster? ▼
What environmental agencies cover Lancaster? ▼
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.