Uranium Division Mallinckrodt Chemical Works (Weldone Spring, Mo.). The Atomic Energy Commission acquired part of the property in 1955, and Mallinckrodt, … The active remediation of the Weldon Spring Site was conducted under the Comprehensive Environmental … The processing plant operated until 1966. MCW-1430, MCW-1433, and MCW-1442 include title page note: "This is a progress report on current work and is issued as promptly as possible at the end of the … U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Robert M. Hirsch, Acting Director For … Operated for the U.S. Atomic Energy Commission under contract no. The data, except for air monitoring data and site KPA generated data (uranium analyses), were received from the contract laboratories, verified by the Weldon Spring Site verification group, and merged into the database during the third quarter of 1998. Air monitoring data presented are the most recent complete sets of quarterly data. The Weldon Spring Site remains under the jurisdiction of the Department of Energy, which continues to conduct surface and groundwater tests throughout the area. Government-owned, contractor-operated (GOCO) facility in St. Charles County, Missouri, 55 km west of St. Louis. The Troop participates in many community service activities in the St. Charles County area and operates an annual Christmas Tree Lot fundraiser. After production ceased, the U.S. Department of Energy gained control of the property and began the clean-up process. The following Fact Sheet was generated by the U.S. Army Corps of Engineers. The Weldon Spring, Mo., Nuclear Waste Adventure Trail and Museum, officially known as the Weldon Spring Site and Interpretive Center, offers just such an opportunity. Visitors can clamber to the top of a burial mound of sorts. The disposal plan is one of four put on the table late last year. This hiking and biking trail in Weldon Springs is on the site of a former uranium production plant that is now safe for public use. Mallinckrodt Chemical Works (Weldon Spring, Mo.) 14 Other Attractions within 5 miles. The Weldon Spring Site has transformed from a site once used to manufacture explosives and process uranium-ore concentrates to a publicly accessible area for recreation and education. Weldon Spring Uranium Feed Materials Plant dated January 1959: April 1942. Abstract. ""August 21, 1961.""MCW-1467. Weldon Spring Site, Missouri A CERCLA site Fact Sheet The plant converted processed uranium ore concentrates to pure uranium trioxide, intermediate compounds, and uranium metal. The Weldon Spring Ordnance Works was, at the time, the largest explosives factory in the U.S. The Weldon Spring Site has been transformed from a contaminated World War II explosives manufacturing plant and Cold War Era uranium processing facility to an educational and recreational site. Weldon Spring Uranium Feed Mill Plant produced yellow cake uranium ore. Weldon Spring is a city in St. Charles County, Missouri, United States. The Weldon Spring site is now open to the public and is an excellent example of beneficial reuse of a former World War II explosives manufacturing and Cold War uranium metals-processing facility. The processing plant operated until 1966. 90 Restaurants within 5 miles. Uranium Division. As a result, radioactive water is now seeping through limestone into the groundwater. Weldon Spring Chemical Plant. The operation of the Weldon Spring Uranium Feed Materials Plant in St. Charles, MO between 1958 and 1966 resulted in the migration and emplacement of radioactive contaminants into surface water drainage systems. After decontamination, the Army officially transferred the land to AEC. construction of the Weldon Spring Uranium Feed Materials Plant, now referred to as the Weldon Spring Chemical Plant. The Weldon Spring Uranium Feed Mill Plant, operated by Mallinckrodt Chemical Works of St. Louis, did not produce weapons grade uranium, as is often thought, but instead processed raw uranium ore into “yellow cake,” or concentrated ore which was shipped to other sites. Boy Scout Troop 353 is based in Weldon Spring, MO and is part of the Boone Trails District within the Greater St. Louis Area Council. The Weldon Spring Site remains under the jurisdiction of the Department of Energy, which continues to conduct surface and groundwater tests throughout the area. At that point the radioactive waste was left behind. In 1957, when fulfilling new safety measures became too difficult at the old company, the purification of uranium ceased at St. Louis and production moved to the newly built Weldon Spring site in Missouri. Weldon Spring Plant site information. 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