Accession Number : ADA292445

Title :   Feasibility Study for Ground Water at Explosive Washout Lagoons Activity Area (OU3) at the Umatilla Depot Activity (UMDA). Revision 0.

Descriptive Note : Final rept. Jun 92-Dec 93,

Corporate Author : LITTLE (ARTHUR D) INC CAMBRIDGE MA

Personal Author(s) : Bowen, Richard C. ; Balasco, Armand A. ; Bryant, Michael ; Cahill, Kevin ; Marando, Michael

PDF Url : ADA292445

Report Date : 10 DEC 1993

Pagination or Media Count : 331

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

Descriptors :   *COST ANALYSIS, *GROUND WATER, *SOIL POLLUTION, *EXPLOSIVE ORDNANCE DISPOSAL, CHEMICAL CONTAMINATION, MONITORING, TECHNOLOGY TRANSFER, ADSORPTION, TOXICITY, ARMY FACILITIES, WATER TREATMENT, ACTIVATED CARBON, AQUIFERS, SUPPLY DEPOTS, FEASIBILITY STUDIES, OXIDATION, BARRIERS, EXTRACTION, MUSTARD AGENTS, EXPOSURE(PHYSIOLOGY), CARCINOGENS, SITE INVESTIGATIONS, INSTALLATION RESTORATION, PUBLIC HEALTH, RDX, TNT, CHEMICAL ANALYSIS, HAZARDOUS MATERIALS, SLUDGE, WATER TABLE, LIQUID WASTES, EQUALIZATION.

Subject Categories : Hydrology, Limnology and Potamology
      Logistics, Military Facilities and Supplies
      Solid Wastes Pollution and Control
      Water Pollution and Control
      Economics and Cost Analysis

Distribution Statement : APPROVED FOR PUBLIC RELEASE