EPA-regulated facilities in Wasco County, OR

There are 255 EPA-regulated facilities inside Wasco County, Oregon. The most common kinds are hazardous waste (97), water discharge (94), drinking water systems (51). 6 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 19 have a violation on record. Penalties over the last five years total $5.4M across 7 sites.

Open the map of Wasco County

255facilities in the county

6in significant noncompliance

19with a violation on record

$5.4Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	97
Treatment, storage or disposal	1
Large quantity generators	2
Small quantity generators	43
Chemical (RMP/TRI)	6
Superfund	5
Air emissions	28
Major sources	2
Minor sources	1
Water discharge	94
Major permits	2
Minor permits	78
Drinking water systems	51
Greenhouse gas reporters	1
Data centers	9

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.

SIMNASHO SCHOOLIE FLATS WELLS SIMNASHO RD, MAUPIN, OR, 97037 Significant noncompliance
WARM SPRINGS NATIONAL FISH HATCHERY 7026 S 115 RD, 1, WARM SPRINGS, OR, 97761 Significant noncompliance
KAH NEE TAH RESORT 6823 OR-8, WARM SPRINGS, OR, 97761 Significant noncompliance
SIDWALTER WELL B-166 RD, MAUPIN, OR, 97037 Significant noncompliance
NORTHERN WASCO COUNTY LANDFILL 2550 STEELE RD, THE DALLES, OR, 97058 Significant noncompliance
TOOLEY WATER DISTRICT HIGHWAY 30W, THE DALLES, OR, 97058 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UPS THE DALLES 1515 W 1ST ST, THE DALLES, OR, 97058 $5.3M in penalties
THE DALLES STP 105 LAUGHLIN ST, THE DALLES, OR, 97058 $38k in penalties
OREGON CHERRY GROWERS 101 MADISON ST, THE DALLES, OR, 97058 $30k in penalties
OREGON CHERRY GROWERS RIVERSIDE PLANT 801 W 1ST ST, THE DALLES, OR, 97058 $30k in penalties
DUFUR STP PARK LOOP, DUFUR, OR, 97021 $13k in penalties

Superfund sites

BPA CELILO SUBSTATION AND CONVERTER STATION 3920 COLUMBIA VIEW DR, THE DALLES, OR, 97058
THE DALLES ROUNDHOUSE (FORMER) THE DALLES RAILYARD, THE DALLES, OR, 97058
UNION PACIFIC RAILROAD CO. TIE-TREATING PLANT TIE PLANT RD-IN CITY LIMITS, THE DALLES, OR, 97058
AMERITIES 100 TIE PLANT RD, THE DALLES, OR, 97058
NORTHWEST ALUMINUM CO SITE 3313 W 2ND ST, THE DALLES, OR, 97058

Data centers

Google
NORTHWEST ALUMINUM CO SITE 3313 W 2ND ST, THE DALLES, OR, 97058
Google
MALLORY & EVANS, INC. 4200 COLUMBIA ROAD, THE DALLES, OR, 97058
DESIGN LLC 4200 COLUMBIA ROAD, THE DALLES, OR, 97058
Google Data Center The Dalles Oregon
DESIGN, LLC 4400 RIVER TRAIL WAY, THE DALLES, OR, 97058
DESIGN LLC 4400 RIVER TRAIL WAY, THE DALLES, OR, 97058
Google Taylor Lake Data Center

Towns in Wasco County

The Dalles

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.