Ключевые слова: access, cesspool, communication, concrete well, drainage, drawwell, equipment, hatch, industry, inspection, lid, maintenance, man, manhole, manhole cover, municipal, open, pipeline, plumber, plumbing, pollution, repair, reservoir, sanitary, septic, septic tank, septic well, service, settling tank, sewer, sewer well, sewerage, sewers, sewing waste, sump, system, tank, utility worker, waste water, wastewater, water utility, water well, well, well with water, worker, working,