borewell drilling and installation of handpump for zilla parishad ratnagiri . , borewell drilling and installation of hand pump , borewell drilling - 200/215 mm dia . bore drilling in soft murum & soil & 150 mm dia . bore drilling in hard rock . wet drilling by dth machine including transporting of bore drilling machine , yield testing of borewell by air lift method with help of 90 degree v notch method for minimum 2 hrs . continous after completion of borewell , proving & placing 180 mm dia . pvc casing pipe 6kg/cm2 ( is 4985-1988 ) including lowering , handing & grouting etc complte , lowering & grauting casing 180mm upto 12m , lowering & grauting casing 180mm above 12m , proving cap for pvc casing pipe 180 mm , proving & placing 180 mm dia . pvc casing 8kg/cm2 pipe ( is 4985-1988 ) including lowering , handing & grouting etc complte , borewell drilling - 115 mm dia . bore drilling in hard rock & including 150 mm drilling in soft murum & soil and . wet drilling by dth machine including transportion . , yield testing of 115 mm borewell by air lift method with 90 degree v notch method for minimum 2 hrs . continous , proving & placing 140 mm dia . pvc casing pipe 6 kg/cm2 ( is 4985-1988 ) including grouting etc complte . , lowering & grauting casing 140mm upto 12m , lowering & grauting casing 140mm above 12m , proving cap for pvc casing pipe 140 mm , proving & placing 150 mm dia . threaded m . s . casing pipe erw medium class ( is:1239 ) ( including casing , lowering socketing & grouting ) with 4 . 8 mm thickness , proving & placing 150 mm dia . without thread m . s . casing pipe erw medium class ( is:1239 ) ( including casing , lowering socketing & grouting ) with 4 . 8 mm thickness , handpump installation india mark ii . ( handpump set will provide by department ) , construction of handpump plateform as per govt . . aproved design & govt . approved rate . , a ) exacavation as per measurement , b ) dry rubble stone filling as per measurement , c ) 1:2:4 ( m-150 ) cement concrete as per measurement , fully galvanised special water chember for duel pump installation . , stainless steel bottom nipple for duel pump installation . , yield testing of borewell by power pump & generator . , handpump removing & re-fitting for flushing , yield testing etc .