Denver Radium Site -- Operable Unit I closeout report for the US Environmental Protection Agency

Technical Report · Sat Aug 01 00:00:00 EDT 1992

OSTI ID:6777353

The Denver Radium Site consists of properties in the Denver, Colorado, area having radioactive contamination left from radium processing in the early 1900s. The properties are divided into 11 gaps or operable units to facilitate remedial action of the Site. Operable Unit I is an 8-acre block bounded by Quivas Street to the east, Shoshone Street to the west, West 12th Avenue to the south, and West 13th Avenue to the north. The primary focus of interest concerning investigations of radiological contamination was a radium, vanadium, and uranium processing facility at 1201 Quivas Street owned by the Pittsburgh Radium Company (PRC) from 1925 until 1926. The Radium Ores Company, which was associated with PRC, operated the facility until 1927. A Remedial investigation (RI) of Operable Unit I was prepared by Jacobs Engineering Group and CH[sub 2]M Hill on behalf of EPA in April 1986. The draft Feasibility Study (FS), prepared by Jacobs Engineering Group and CH[sub 2]M Hill, was issued in July 1987 (the final FS is the Community Relations Responsiveness Summary with an errata to the draft, issued September 1987). The RI focused on radium uranium processing residues discarded in the early 1900s. These residues contained uranium, radium, and thorium. EPA s Community Relations Plan involved the community in the decision-making process relating to the remedy to be implemented at Operable Unit X, and promoted communications among interested parties throughout the course of the project. The remedial action alternative preferred by EPA for Operable Unit I was Off-Site Permanent Disposal. Because a permanent disposal facility was not available at the time the Record of Decision was issued in September 1987, EPA selected the On-Site Temporary Containment (capping) with the Off-Site Permanent Disposal alternative.

• Research Organization: Chem-Nuclear Geotech, Inc., Grand Junction, CO (United States)
• Sponsoring Organization: DOE; EPA; USDOE, Washington, DC (United States); Environmental Protection Agency, Washington, DC (United States)
• DOE Contract Number: AC04-86ID12584
• OSTI ID: 6777353
• Report Number(s): DOE/ID/12584-101; GJPO-DR--10; ON: DE93007940
• Country of Publication: United States
• Language: English

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ABANDONED SITES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKA
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CARBON 14 DECAY RADIOISOTOPES
COLORADO
CONTAMINATION
DEVELOPED COUNTRIES
ELECTRON CAPTURE RADIOISOTOPES
EVEN-EVEN NUCLEI
FEDERAL REGION VIII
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MANAGEMENT
NANOSEC LIVING RADIOISOTOPES
NATIONAL ORGANIZATIONS
NEON 24 DECAY RADIOISOTOPES
NORTH AMERICA
NUCLEI
ODD-ODD NUCLEI
ORE PROCESSING
ORES
POTASSIUM 40
POTASSIUM ISOTOPES
PROCESSING
PUBLIC OPINION
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE MANAGEMENT
RADIOISOTOPES
RADIUM 226
RADIUM ISOTOPES
REMEDIAL ACTION
SOILS
SPONTANEOUS FISSION RADIOISOTOPES
THORIUM 230
THORIUM 232
THORIUM ISOTOPES
URANIUM ORES
US EPA
US ORGANIZATIONS
USA
VANADIUM ORES
WASTE DISPOSAL
WASTE MANAGEMENT
YEARS LIVING RADIOISOTOPES