Superfund Record of Decision (EPA Region 7): Weldon Spring Quarry/Plant/Pits (USDOE), Weldon Spring, MO. (Second remedial action), September 1990

Technical Report · Fri Sep 28 04:00:00 EDT 1990

OSTI ID:6145413

The 226-acre Weldon Spring Quarry/Plant/Pits (USDOE) site is a former ordnance works and chemical plant near the city of Weldon Spring in St. Charles County, Missouri. The site is divided into two noncontiguous areas: a 217-acre chemical plant area, comprised of various buildings, ponds and four raffinate pits, and a 9-acre quarry, which forms a valley wall at the edge of the Missouri River floodplain. Since the early 1940s, the site has been used by various government agencies for chemical and ordnance processing with chemical and radioactive waste disposal in the quarry. From 1941 to 1946, the site was an Army ordnance works used for the production of trinitrotoluene (TNT) and dinitrotoluene (DNT) explosives. The selected interim remedial action for the site includes excavating an estimated 95,000 cubic yards of chemically and radioactively contaminated bulk wastes from the quarry and temporarily storing the wastes onsite in the chemical plant area; and implementing site access restrictions. The estimated total cost for the remedial action is $11,000,000.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 6145413
• Report Number(s): PB-91-921564/XAB; EPA/ROD/R--07-90/043
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540230 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
540330 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
ACTINIDES
AROMATICS
ARSENIC
CHEMICAL WASTES
CONTAMINATION
DEVELOPED COUNTRIES
ELEMENTS
EQUIPMENT
EXCAVATION
FEDERAL REGION VII
HAZARDOUS MATERIALS
HYDROCARBONS
LAWS
MANAGEMENT
MATERIALS
METALS
MILITARY EQUIPMENT
MISSOURI
NONRADIOACTIVE WASTES
NORTH AMERICA
ORDNANCE
ORGANIC COMPOUNDS
POLLUTION
POLLUTION LAWS
POLYCYCLIC AROMATIC HYDROCARBONS
PONDS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE MANAGEMENT
REMEDIAL ACTION
SEMIMETALS
SITE SURVEYS
SOILS
SURFACE WATERS
THORIUM
URANIUM
US SUPERFUND
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES