Solvay Longview Hydrogen Peroxide Plant
Large load · 3500 INDUSTRIAL WAY, Longview, WA
Solvay Chemicals, Inc. makes hydrogen peroxide at 3500 Industrial Way in Longview, Cowlitz County, Washington. The company announced plans to lift production capacity at the plant by 20 percent and an air permit in 2016 covered a steam methane reformer for hydrogen. State environmental records through early 2026 list active permits.
Overview
The Washington State Department of Ecology states that this facility makes hydrogen peroxide. Solvay, the world’s largest producer of hydrogen peroxide, planned in 2015 to lift production capacity at its U.S. Longview facility by 20 %, with completion of the first stage due in late 2016. A 2016 preliminary air permit notice covered a plant expansion installing a new steam methane reformer to produce hydrogen and additional hydrogen peroxide production capacity.
Profile
- Ownership
- Solvay Chemicals, Inc. is listed at Solvay Longview, 3500 Industrial Way. EPA reporting for 2023 lists SOLVAY HOLDING INC as parent company with 100 percent ownership interest.
- Permits and environment
- Industrial stormwater permit WAR000570 is listed with dates 1/1/2025 to 12/31/2029. Ecology’s facility index lists an AKART approval document dated February 26, 2026 and a January 14, 2026 warning letter about a late single-sample DMR. The Southwest Clean Air Agency regulates the plant’s air quality activities, and it found in 2025 that a notification met SWCAA 400-072(2) for a 600 bhp diesel-fired engine powering an emergency fire pump. The plant sends wastewater to the Three Rivers Regional Wastewater treatment plant and Nippon Dynawave pulp and paper mill for treatment.
Facility
- Activity
- Hydrogen peroxide manufacturing
- Industry
- Industrial
- Site type
- Facility
- Operating status
- Operating