Twin Cities Army Ammunition Plant

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Headstamp of a .50 caliber bullet casing, made by the Twin Cities Ordnance Plant in 1944 and recovered from the Sahuarita Bombing and Gunnery Range in 2008. .50 caliber bullet headstamp 1944.jpg
Headstamp of a .50 caliber bullet casing, made by the Twin Cities Ordnance Plant in 1944 and recovered from the Sahuarita Bombing and Gunnery Range in 2008.
Fifty round package of .45 ball ammunition from 1948 Twin Cities Arsenal .45 Packaging Circa 1948.jpg
Fifty round package of .45 ball ammunition from 1948

The Twin Cities Army Ammunition Plant was a United States Army ammunition plant located in Ramsey County, Minnesota in the current boundaries of the suburbs of Arden Hills and New Brighton, bounded by County Road I to the north, I-35W to the west, U.S. Route 10 to the southwest, County Highway 96 to the south, and Lexington Avenue to the east. The site had 255 buildings across 2,382 acres (9.64 km2). [1] Current land redevelopment involves the removal of these buildings.

Contents

The site was added to the National Priorities List as a Superfund site on September 8, 1983. [2] The soil, sediments, groundwater, and surface water surrounding the plant were contaminated with base neutral acids, metals, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, volatile organic compounds, pesticides, cyanide, and explosives. [2] These contaminants entered Rice Creek and from there the ground water in New Brighton. [3]

Initially, the plant was known as the Twin Cities Ordnance Plant but it was renamed the Twin Cities Arsenal in 1946 and finally, in 1963, the Twin Cities Army Ammunition Plant. [4]

History

Office at Twin Cities Ordinance Plant during World War II; engineering manager Raymond M. Winslow at right. Office of the Commanding Officer, Twin Cities Ordnance Plant, Minnesota 01.jpg
Office at Twin Cities Ordinance Plant during World War II; engineering manager Raymond M. Winslow at right.

The TCAAP was a product of the government-owned, contractor-operated (GOCO) war materials production program established by the War Department during World War II. The Minneapolis-Saint Paul area emerged as a potential GOCO candidate primarily on the basis of labor supply. TCAAP was one of six GOCO plants built to produce small arms ammunition during World War II, and was operated by the Federal Cartridge Corporation under contract to the War Department. [5]

The Twin Cities Ordnance Plant began production in March, 1942 making .30 Caliber, .50 Caliber and .45 Auto ammunition. In 1944 it began overhauling old .30- and .50-caliber ammunition by the use of machines that disassembled them into their components. It closed in September, 1945 due to the ending of the fighting in the Pacific. It was reopened on a reserve basis as the Twin Cities Arsenal from 1946 to 1950. The demands of the Korean War restored full production from 1950 until it was closed down in 1957. It was renamed as the Twin Cities Army Ammunition Plant in 1963. The demand for the new 5.56mm NATO and 7.62mm NATO cartridges during the Vietnam War made it reopen briefly from 1965 to 1976. It was in standby from 1976 to 2002 and was finally closed in 2005.

Future of Site

After a bid to make TCAAP the new home for the Minnesota Vikings failed, the Ramsey County Board of Commissioners approved the purchase of the surplus acreage that remains on the original 2,700 acre TCAAP site. This 427-acre parcel will be redeveloped in conjunction with the City of Arden Hills. Under terms of the deal, the county will pay the federal government $4.9 million for the property and agree to spend $22.6 million to clean up remaining pollution. In April 2013, the County executed a competitively bid contract with Carl Bolander & Sons of St. Paul for the demolition of all structures on site, and the full remediation of the site to residential soil values [6] As of October 2013, Bolander and Sons had removed all of the above grade buildings but one, and had begun soil remediation activities. The county will finance the deal with $21.4 million in bonding, a $6 million transfer from its solid waste fund and $2 million in contingency funds. These dollars will be replenished through the sale of land for redevelopment.

Joint Development Authority

Through a Joint Powers Agreement (JPA), the City of Arden Hills and Ramsey County have created a Joint Development Authority (JDA). This entity will be responsible for implementing the City and County approved Master Plan for the site, issuing Requests for Proposals (RFPs), and negotiating development agreements with private developers. The JDA meets monthly, on the first Monday of the month, at Arden Hills City Hall at 5:30 p.m. [7]

Source of drinking water contamination

In 1987 the TCAAP was positively identified as the source of Volatile organic compound (VOCs) contamination in New Brighton's water supply, first identified in July 1981. The contamination consisted of Trichloroethylene (TCE) at levels ranging from a few parts per billion to over two hundred parts per billion. [3]

See also

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References

  1. "Twin Cities Army Ammunition Plant". United States Army Plants. GlobalSecurity.org. Retrieved 2009-09-03.
  2. 1 2 "NEW BRIGHTON/ARDEN HILLS/TCAAP (USARMY) NEW BRIGHTON, MN". Superfund Site. U.S. Environmental Protection Agency. Retrieved 27 November 2017.
  3. 1 2 "History of Water System and Ground Contamination". City of New Brighton. Retrieved November 27, 2017.
  4. "TWIN CITIES ARMY AMMUNITION PLANT: An Inventory of Its Plant Files at the Minnesota Historical Society". Minnesota Historical Society. Retrieved November 27, 2017.
  5. "Army ammunition plant: An early history".
  6. "Soil Screening Guidance | Superfund | US EPA". www.epa.gov. Archived from the original on 2007-10-10.
  7. "About TCAAP Redevelopment | Arden Hills, MN - Official Website".

45°06′N93°10′W / 45.100°N 93.167°W / 45.100; -93.167