EPA-regulated facilities in Johnston County, OK

There are 171 EPA-regulated facilities inside Johnston County, Oklahoma. The most common kinds are air emissions (114), water discharge (33), hazardous waste (17). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 6 have a violation on record. Penalties over the last five years total $27k across 2 sites.

Open the map of Johnston County

171facilities in the county

1in significant noncompliance

6with a violation on record

$27kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	17
Small quantity generators	5
Chemical (RMP/TRI)	1
Superfund	1
Air emissions	114
Synthetic minor sources	27
Minor sources	81
Water discharge	33
Minor permits	24
Drinking water systems	16

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.

WAPANUCKA PUBLIC WORKS AUTH. P.O. BOX 163, WAPANUCKA, OK, 73461 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

MILL CREEK DOLOMITE, LLC 5M S OF MILL CREEK HWY, MILL CREEK, OK, 74856 $17k in penalties
TISHOMINGO, CITY OF 202 S. CAPITOL, SUITE 1, TISHOMINGO, OK, 73460 $10k in penalties

Superfund sites

RANDY'S AUTOMOTIVE AND SALVAGE 8505 S. MCSWAIN LANE, TISHMINGO, OK, 73460

Bordering counties

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. The Data page explains where each record comes from and how it can mislead.