EPA Air · by county
Air-emissions sources in Cowlitz County, Washington
- 17Facilities
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Every stationary source in Cowlitz County, Washington that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
Every source’s record in Cowlitz County
Each of the 14 operating major, synthetic minor and minor sources in Cowlitz County, Washington has a record page: every source in Cowlitz County, A to Z.
By emissions classification in Cowlitz County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Cowlitz County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 inspections 17
- 2025 inspections 15
- 2024 inspections 18
- 2023 inspections 25
- 2022 inspections 32
- 2021 inspections 27
- 2020 inspections 20
- 2019 inspections 12
- 2018 inspections 17
- 2017 inspections 14
Violations in Cowlitz County, by year
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity.
- 2026 violations 7
- 2025 violations 15
- 2024 violations 14
- 2023 violations 12
- 2022 violations 14
- 2021 violations 11
- 2020 violations 8
- 2019 violations 5
- 2018 violations 10
- 2017 violations 12
Stack tests in Cowlitz County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 15
- 2025 stack tests 79
- 2024 stack tests 81
- 2023 stack tests 63
- 2022 stack tests 64
- 2021 stack tests 68
- 2020 stack tests 87
- 2019 stack tests 87
- 2018 stack tests 82
- 2017 stack tests 96
Inspections in Cowlitz County, year by year · Violations in Cowlitz County, year by year · Stack tests in Cowlitz County, year by year
Other counties in Washington
Every county in the state with at least three sources on file.
- Benton County 9
- Clallam County 8
- Clark County 25
- Franklin County 6
- Grant County 12
- Grays Harbor County 19
- King County 119
- Kitsap County 37
- Klickitat County 5
- Lewis County 15
- Mason County 5
- Okanogan County 19
- Pierce County 75
- Skagit County 16
- Snohomish County 65
- Spokane County 25
- Stevens County 5
- Thurston County 5
- Undetermined County 29
Cowlitz County carries 17 of the 621 air-emissions sources this register holds in Washington, which places it 12th of 23 in that cohort.
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| COWLITZ COUNTY HEADQUARTERS LANDFILL | Major source | No |
| COWLITZ COUNTY HEADQUARTERS LANDFILL | No | |
| EGT DEVELOPMENT, LLC | Minor source | No |
| KALAMA EXPORT COMPANY, LLC | Minor source | No |
| LAKESIDE INDUSTRIES, INC. / LONGVIEW | Minor source | No |
| LANXESS CORPORATION | Major source | Yes |
| MINT FARM GENERATION, LLC. | Minor source | No |
| NIPPON DYNAWAVE PACKAGING COMPANY LLC | Major source | Yes |
| NORTH PACIFIC PAPER CORP. | Major source | Yes |
| NORTHWEST HARDWOODS / LONGVIEW | Minor source | No |
| OWENS-BROCKWAY GLASS CONTAINER, INC. | Not applicable | Yes |
| PORT OF LONGVIEW | Minor source | No |
| SOLVAY INTEROX | Minor source | No |
| TEMCO LLC | Minor source | No |
| WESTLAKE US 2 LLC | Major source | No |
| WESTROCK LONGVIEW LLC | Major source | Yes |
| WEYERHAEUSER LONGVIEW LUMBER | Major source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Cowlitz county, WA. It lists 17 facilities in Cowlitz county and 7 major sources.