EPA-regulated facilities in Asotin County, WA

There are 101 EPA-regulated facilities inside Asotin County, Washington. The most common kinds are water discharge (51), hazardous waste (38), air emissions (9). 7 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 12 have a violation on record.

Open the map of Asotin County

101facilities in the county

7in significant noncompliance

12with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	38
Small quantity generators	10
Air emissions	9
Synthetic minor sources	1
Minor sources	1
Water discharge	51
Minor permits	37
Drinking water systems	7
Greenhouse gas reporters	1

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.

ASOTIN COUNTY 095 2ND ST, ASOTIN, WA, 99402 Significant noncompliance
CITY OF ASOTIN 121 CLEVELAND, ASOTIN, WA, 99402 Significant noncompliance
STEELMAN DUFF INC 1490 FAIR ST, CLARKSTON, WA, 99403 Significant noncompliance
ATLAS SAND AND ROCK EVANS RD PIT 964 INGRAM RD, CLARKSTON, WA, 99403 Significant noncompliance
POE ASPHALT PAVING DRY GULCH PIT EVANS RD .6 MILES S OF SR12, CLARKSTON, WA, 99403 Significant noncompliance
CLARKSTON CITY 830 5TH ST, CLARKSTON, WA, 99403 Significant noncompliance
CLARKSTON 2021 STORMWATER RETROFIT UNSPECIFIED, CLARKSTON, WA, 99403 Significant noncompliance

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.