Feasibility Study for Ground Water at Explosive Washout Lagoons Activity Area (OU3) at the Umatilla Depot Activity (UMDA). Revision 0.
Abstract
This report presents the results of the Feasibility Study (FS) performed for the Explosive Washout Lagoon Ground Water of Umatilla Depot Activity (UMDA) near Hermiston, Oregon. UDMA is a U.S. Army ordnance depot located near Hermiston, Oregon. From the mid-1950s to 1965, explosives, contaminated sludges, and liquid wastes generated at the UMDA Washout Plan were discharged and allowed to collect and infiltrate into the soil at the Explosive Washout Lagoons. Explosives contamination of the soils and ground water led to its inclusion on the National Priorities List by EPA. The FS addresses the contamination of ground water at the Explosive Washout Lagoons; develops objectives for ground water remediation; and identifies, develops, screens, and evaluates ground water remedial action alternatives. Basic components of the remedial alternatives subjected to a detailed evaluation for the contaminated ground water at the Explosive Washout Lagoons include: No Action; Institutional Controls; Treatment of the ground water by UV/Oxidation until the aquifer meets the preliminary remediation goals; Treatment of the ground water by Granular Activated Carbon (GAC) until the aquifer meets the preliminary remediation goals; Treatment of the ground water by UV/Oxidation until the aquifer meets a carcinogenic risk of 10(exp -4) and a hazard index of 1; and Treatment of the ground water by GAC until the aquifer meets a carcinogenic risk of 10(exp -4) and a hazard index of 1. -BKA
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 10, 1993
- Accession Number
- ADA292445
Entities
People
- Armand A. Balasco
- Kevin Cahill
- Michael Bryant
- Michael Marando
- Richard C. Bowen
Organizations
- Arthur D. Little