drainage Definition

drain, sewer, sewerage, drains, sewage, irrigation, sewers, outfall, watercourse, seepage, rainwater, effluent, water, piping, basin, hydrological, nullah, catchment, sanitation, sump, runoff, remediation, rainfall, pond, river, slope, watershed, flow, outflow, hydrographical, desiccation, draining, venting, rain, hydraulic, discharge, pipeline, drying, discharging, drip, bilge, hydrography, hydrographic, disposal, evac, drawdown, slop, fluid, channel, evacuation, mine, pool, pelvis, kui, waters, emission, emissions, versant, escape, pai, native, foul, bassin, degassing, dewatering, dsd, hydrologic, run-off, sell-through, stormwater, streamflow, exchange, culvert, soakaway, septic tank, drainage basin, wastewater, drainage ditch, swale, groundwater, silt, levee, sewage disposal, diking, subgrade, sedimentation, sumps, waterlines, swales, berming, gutters, revetment, catchdrain, clarifiers, riprap, repaving, catch basin, graveling, roadwork, subsidence,