EPA-regulated facilities near St. Marys, PA

There are 152 EPA-regulated facilities within 5 miles of St. Marys, Pennsylvania. The most common kinds are water discharge (79), hazardous waste (63), air emissions (37). 5 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 7 have a violation on record. Penalties over the last five years total $41k across 2 sites.

Open the map here

152facilities within 5 miles

5in significant noncompliance

7with a violation on record

$41kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	63
Treatment, storage or disposal	1
Large quantity generators	4
Small quantity generators	41
Chemical (RMP/TRI)	28
Air emissions	37
Major sources	2
Synthetic minor sources	2
Minor sources	24
Water discharge	79
Major permits	1
Minor permits	67
Drinking water systems	2

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

ST MARYS AREA WTP 967 STATE ST, SAINT MARYS, PA, 15857 · 4.8 mi Significant noncompliance · $2k in penalties
GRAFTECH USA LLC/ST MARYS 800 THERESIA ST, SAINT MARYS, PA, 15857 · 2.2 mi Significant noncompliance
NICHOLS PORTLAND INC 286 PIPER RD, ST MARYS, PA, 15857 · 3.2 mi Significant noncompliance
KEYSTONE POWDERED METAL CO - ST MARYS FACILITY 251 STATE ST, SAINT MARYS, PA, 15857 · 3.5 mi Significant noncompliance
ST. MARYS WASTEWATER TREATMENT PLANT 120 WEST RIDGWAY ROAD, ST. MARYS, PA, 15857 · 3.7 mi Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

MERSEN USA/ST MARYS 1032 TROUT RUN RD, SAINT MARYS, PA, 15857 · 2.0 mi $40k in penalties

County

Elk County

Nearby towns

Olean, NY 44 mi
State College 57 mi
Jamestown, NY 58 mi
Altoona 66 mi
Indiana 66 mi
Johnstown 81 mi
Dunkirk, NY 82 mi
Lackawanna, NY 95 mi

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. Distances are from the center of St. Marys as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.