New directions for wastewater collection and disposal.
D000288:Administrative Personnel / Q000600:supply & distribution; D055598:Chemical Phenomena; D002621:Chemistry; D011312:Pressure; D012722:Sewage; D012987:Soil; D014481:United States; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply
D012722:Sewage; D012987:Soil