Superfund Record of Decision (EPA Region 8): Chemical Sales (New Location) (Operable Unit 1), Denver, Co. (First remedial action), June 1991

Technical Report · Thu Jun 27 04:00:00 EDT 1991

OSTI ID:7128550

The Chemical Sales (New Location) (Operable Unit 1) site is an active chemical sales and storage facility in Commerce City, Adams and Denver Counties, Colorado. Land use in the area is predominantly industrial, and there are six residences located on the northern portion of the site. The site is bounded by Sand Creek to the north and lies within the 100-year floodplain of the creek. An estimated 30,000 people who reside near the site use the alluvial aquifer as the principal source of drinking water. Since 1976, Chemical Sales (CS) has used the site to store and sell organic chemicals and acids. Between 1985 and 1990, three onsite chemical releases of hazardous substances into the soil and ground water from the CS facility were reported. In 1985, approximately 200 gallons of methylene chloride were spilled into onsite soil during a chemical transfer. The second release was in 1986 when rain water contaminated with several VOCs was discharged into a nearby drainage ditch. The third release occurred in 1990, when approximately 3,700 gallons of methanol were spilled on the ground surface near the CS tank farm. The Record of Decision (ROD) addresses remediation of soil and ground water contamination south of Sand Creek, as OU1. Future RODs will address other site contamination including the ground water plume and associated contamination (OU2), and residential exposure to contaminated wells and domestic water from the municipal water supply (OU3). The primary contaminants of concern affecting the soil and ground water are VOCs including PCE and TCE. The selected remedial action for the site is included.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 7128550
• Report Number(s): PB-92-964409/XAB; EPA/ROD/R--08-91/045
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
ALCOHOLS
AQUIFERS
CHEMICAL WASTES
CHLORINATED ALIPHATIC HYDROCARBONS
COLORADO
CONTAMINATION
DEVELOPED COUNTRIES
ENVIRONMENTAL TRANSPORT
FEDERAL REGION VIII
GROUND WATER
HALOGENATED ALIPHATIC HYDROCARBONS
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LAND POLLUTION
LAWS
MANAGEMENT
MASS TRANSFER
MATERIALS
METHANOL
METHYLENE CHLORIDE
MONITORING
NONRADIOACTIVE WASTES
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
POLLUTION LAWS
REMEDIAL ACTION
SITE SURVEYS
SOILS
US SUPERFUND
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
WATER POLLUTION