Superfund Record of Decision (EPA Region 9): Sacramento Army Depot, Operable Unit 4, Sacramento, CA. (Third remedial action), September 1992

Technical Report · Wed Sep 30 04:00:00 EDT 1992

OSTI ID:5976756

The 485-acre Sacramento Army Depot (SAAD) site is a military facility in Sacramento County, California. Land use in the area is predominantly commercial and light industrial, with wetlands in the vicinity of several oxidation lagoons. The estimated 56,398 people who live within 2 to 3 miles of the site use municipal water as their drinking water supply. From 1950 to 1972, the lagoons received mostly industrial waste water from metal plating processes and domestic wastewater. The selected remedial action for the site includes excavating and treating approximately 15,500 cubic yards of contaminated soil onsite using soil washing; dewatering and then backfilling the treated soil onsite in the excavation areas, and storing the rinsate temporarily in onsite holding tanks for recycling; treating rinsate from the treatment process using chemical precipitation, clarification/flocculation, and chemical coagulation to remove metals, prior to discharge into the sanitary sewer; dewatering the sludge containing the precipitated metals, and stabilizing this if necessary, followed by disposal in an RCRA landfill or recovery at an offsite reclamation unit. The estimated present worth cost for this remedial action is $5,020,000. There are no O M costs associated with the remedial action.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 5976756
• Report Number(s): PB-93-964510/XAB; EPA/ROD/R--09-92/084
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
ADMINISTRATIVE PROCEDURES
AQUATIC ECOSYSTEMS
AROMATICS
ARSENIC
BACKFILLING
CALIFORNIA
CHEMICAL REACTIONS
CHROMIUM
CLEANING
COMMERCIAL SECTOR
CONTAINERS
CONTROL
COST ESTIMATION
DECISIONS AND ORDERS
DEVELOPED COUNTRIES
DRINKING WATER
ECOSYSTEMS
ELEMENTS
EXCAVATION
FLOCCULATION
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
LAND USE
LAWS
LIQUID WASTES
MANAGEMENT
MATERIALS
METALS
NATIONAL ORGANIZATIONS
NORTH AMERICA
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL
POLLUTION LAWS
PONDS
PRECIPITATION
RECYCLING
REMEDIAL ACTION
REMOVAL
SANITARY LANDFILLS
SEMIMETALS
SEPARATION PROCESSES
SEWAGE
SLUDGES
SOILS
SURFACE WATERS
TANKS
TRANSITION ELEMENTS
US DOD
US EPA
US ORGANIZATIONS
US SUPERFUND
USA
WASHING
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE WATER
WASTES
WATER
WATER POLLUTION
WATER REMOVAL
WETLANDS