The Lockwood Solvent Groundwater Plume Site (LSGPS) is located on the outskirts of Billings, Montana, in EPA Region 8. The site is managed as two operable units (OUs). OU1 consists of contaminated soils and a plume of chlorinated solvents in groundwater associated with the Beall Source Area (Area B), and OU2 consists of affected media associated with the Brenntag (Soco; Area A) Source Area. This optimization review addressed remedial components planned for affected soil and groundwater in OU2. OU1 is addressed under a separate optimization review report.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Optimization Review: Lockwood Operable Unit 2 - Soco/Brenntag Source Area Billings, Montana (PDF)(103 pp, 4 MB, 2014, 542-R-14-010)