PlainEnviro

Wasco, OR

Moderate Risk (31/100)

A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.

Environmental data for Wasco in Oregon · Population: 26,603

Wasco, OR is tracked across three EPA datasets covering 3 Toxics Release Inventory (TRI) facilities, 21 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 31/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.

Industrial disclosures inside the county total 34.0K lbs of reported toxic releases under EPCRA Section 313, while 16 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 23 and a peak AQI of 93 in 2024, with 87% of observed days rated "Good" (0–50).

All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.

Population
26,603
TRI Facilities
3
Water Systems
21
Superfund Sites
0
Total Releases
34.0K lbs

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 317 (87%) 47 0 93
2023 244 (84%) 40 2 214
2022 161 (100%) 0 0 50
2021 287 (90%) 30 1 163
2020 307 (86%) 45 0 599
2024 Good Air Quality: 87% of days
Median AQI: 23

Source: EPA Air Quality System (AQS) Annual AQI by County 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 Oregon, see the EPA's AirNow.gov.

Water Systems (21)

System Population Violations
THE DALLES, CITY OF 13,010 0
WARM SPRINGS WATER TREATMENT PLANT 3,800 43
BARLOW WATER DISTRICT 900 0
DUFUR, CITY OF 610 1
YOUNG LIFE 497 18
MAUPIN, CITY OF 420 3
SIMNASHO SCHOOLIE 350 32
FOLEY LAKES MOBILE HOME PARK 300 0
HAZEL DELL ORCHARD 260 2
TYGH VALLEY WATER DISTRICT 218 2
VIEW POINT TRAILER COURT 160 3
SPORTSMANS PARK WATER ASSN 150 1
PINE GROVE WATER DIST (WASCO) 140 1
SIDWALTER 130 8
PINEWOOD MOBILE MANOR 130 10
WAMIC WATER ASSOCIATION 130 0
BIA CELILO VILLAGE 75 8
ANTELOPE, CITY OF 46 2
SHANIKO WATER SYSTEM 38 2
DUFUR, SOUTH BASIN 33 2
ROWENA DELL WATER SYSTEM 30 0

TRI Facilities (3)

# Facility Total Releases
1 Amerities West LLC 32.4K lbs
2 Hood River Sand Gravel & Ready Mix - the Dalles 1.3K lbs
3 Hydro Extrusion USA LLC 349 lbs

Cities in Wasco (1)

The Dalles
Pop: -
3 facilities · 7 water

Frequently Asked Questions

What is the environmental risk level in Wasco, Oregon? ▼
Wasco, OR has an environmental risk score of 31/100 (Moderate Risk), based on 3 TRI facilities, 0 Superfund sites, and 21 water systems on record. 16 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Wasco? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Wasco, OR in the EPA database.
How many toxic release facilities are in Wasco? ▼
Wasco, OR has 3 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 34.0K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Wasco? ▼
In 2024, Wasco, OR recorded a median AQI of 23 and a peak AQI of 93. 87% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Wasco? ▼
Wasco, OR has 21 EPA-regulated water systems. 16 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Wasco? ▼
Environmental compliance in Wasco, Oregon is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Oregon state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

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.

Related Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial