Members of the V.I. Waste Management Authority during a Tuesday meeting approved a contract for the continued use of a product whose purposes is to help manage spread of landfill waste while providing savings to WMA. The product, Alternative Daily Cover (ADC) from a company named Rusmar Foam Technologies, is currently being used at local landfills.   Every day, landfills must be filled with 6 inches of soil, however while dirt is still utilized in the territory, the usage of the ADC was stated to greatly reduce expenditures. Additionally, since land space in the USVI is limited, so is the availability of soil. Obtaining the necessary volumes of dirt can also be costly, and that's where ADC comes in.  It was recommended that the authority, through its executive director, approve a three-year contract for St. Croix and St. Thomas with the company,…