loads/unloads materials, digs up manholes, sets sheeting, backfills holes, tamps dirt, flumes water, breaks up pavement, cuts pip, sets up barricades, cleans inlets and ditches, probes holes for underground service lines, utility ducts and underground cables, assists with installation of pipe, valves, valve curb boxes, curb pits, etc.); cleans and maintains tools. drives trucks, assists with set ups of sewer cleaning equipment such as sewer jet, prodding machine, pumps, television and probing equipment; mixes cement, operates air compressor, jack hammer, welding equipment hole hogs, etc.); cleans and maintains equipment.