Boart Longyear diamond drilling firm; Brainard-Kilman, a maker of civil engineering devices, such as well monitoring and test equipment; and ChemGrout a mfg of cement grouting equipment. Longyear acquired Slope Indicator Company, the nation's largest producer of geotechnical instruments, and Northern Air Supply in 1988, followed by the Campbell Pacific Division in 1989 and WTD Environmental Drilling in 1990. Then in 1994, North Star Drilling Company, specializing in sonic drilling was acquired. On January 2, 1995, Boart International and the Longyear Company officially merged into a single company and changed its name to Boart Longyear Limited. At this point the two companies
Food waste sources like employee lunchrooms". The states remain free to define food waste differently for their purposes, though many choose not to. According to the Natural Resources Defense Council, Americans throw away up to 40% of food that is safe to eat. The definitions by the UN and EU have come under criticism for including food that goes to nonfood productive use in their definitions of food waste. According to the authors of one study, this is flawed for two reasons: "First, if recovered food is used as an input, such as animal feed, fertilizer, or biomass to produce output, then