효율적 빗물관리를 위한 하수도 요금체계 개편 방안

Abstract

As sewer flooding frequents due to localized and concentrated stormwater and increased non-permeable surfacearea after urbanization, building cities with sound water recycle and accordingly efficient management of rainwater is demanded.To do this, the existing sewage (including rainwater) fee imposition system should be philosophically evaluated. This study presentsproblematic issues of the existing domestic sewage fee imposition system considering the principle of sharing costs on theservice of sewage and rainwater collection and treatment. Four methods to improve the existing sewage fee imposition systemare suggested: 1) imposing stormwater fee according to Polluter Pays Principle, 2) clarification of the share of public sector, 3)reducing or exempting the sewerage fee for inhabitants reducing urban runoff by constructing their own rainwater managementfacilities, 4) imposing charge for discharging rainwater to sewers due to new development action. Short, mid, or long term planningfor rainwater management is recommended considering the situation of each municipality.