TY JOUR TI Basic Calculated Hydrological Characteristics of Surface Runoff Treatment Systems in the North-Western Region of Russia KW Surface runoff KW treatment facilities KW pollution of a water body KW water body KW precipitation KW hydrological characteristics KW runoff KW water rate KW flood KW rain flood KW dilution factor KW availability KW frequency KW reliability JO Proceedings of Petersburg Transport University AU Kanciber, Y.A. AU Ponomarev, A.B. AU Shtykov, V.I. PY 2023 IS 20 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"