U Executive Engineer (PHE), GSWS Division No-II, Mawphlang da pyntip paidbah u wa hadien wa pynkrehkaam ya u 1000 mm dia Gravity Main Line nadooh ka 2 tarik uni u bnai wei da chem wa ka um dang man ko ka kawa jngud kamtæ da hap phah ya ka um lyngba u 750 mm dia Gravity Main Line wa da em chwa.
Da pyntip wa ha ka 13 tarik heipor wa phah ya ka um lyngba ka 750 mm dia Main Line, da pdung u Pipe ha chnong Pomlum, Upper Shillong.
Kamtæ heiyatoh wa ini ym poi um hadooh ka 16 tarik uni u bnai wei ki thaw wow chah ktah toh ki thaw wa em hapoh ka Shillong Municipal Board, Shillong Cantonment Board, Nongthymmai wa Mawlai.
Neiliang ka yung krehkaam da pteiñ ko yei kreh ya uni u Pipe khnang wow ye biang u saam um nadooh i janmiet ka 16 tarik uni u bnai.
