At least as early as the 1970s the company was one of the largest market share holders of the liquid hazardous waste disposal sector in the western U.S. One of the principal facilities was a large set of industrial waste disposal ponds in Martinez, California.
The business activities of IT fell under strict regulation by the Bay Area Air Quality Management District and the State of California Regional Water Quality Control Board, as well as the Contra Costa County Health Department.
[1] IT established an "on call" air monitoring response to test odor whenever the city of Martinez received a citizen complaint.
These tests, together with routine periodic monitoring, provided an extensive database[2] to assist in managing waste pond decision-making.
[3] Generally water quality testing confirmed the satisfactory operation of IT's liner control program.