Ключевые слова: construction, contamination, cover, culvert, dig, dirty, ditch, drain, drainage, equipment, fix, flat chisels, grate, grid, hammer, hand, hole, iron, man, manhole, manhole cover, masons, metal, mortar chisels, nature, people, person, pipes, professional, reconstruction, repair, repairman, rusted, sanitation, service, sewage, sewer, sewer cover, sewer pipes, sewerage, steel, tool, trench, water, wet, work, worker,