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Optimization Review: Lockwood Operable Unit 1 - Beall Source Area, Billings, Montana

The Lockwood Solvent Groundwater Plume Site (LSGPS) consists of two operable units (OUs) and is located on the outskirts of Billings, Montana in EPA Region 8. OU1 consists of contaminated soils and a chlorinated solvent groundwater plume 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 OU1. The optimization review of remedial design (RD) considerations for OU2 is addressed under a separate optimization review report.

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