REPAIR / CLEANING OF SEWERS, DRAINS, MANHOLES, SEPTIC TANKS, GREASE TRAPS ETC OF TECH AREA AT 6 WING AF UNDER GE (AF) BARRACKPORE

Material and labour for cleaning and desludging of existing septic tank of 100 users capacity completely solid/liquid sludge by pumping or any mechanical means from inside of the septic tank and depositing the sludge in excavated pits (required size and depth) to a distance n.exc. 50mtr from the septic tank. Top layers of excavated pit shall be covered by sprinkling bleaching powder @ 200gms/sqm for disinfection purpose complete all as specified and directed. Note : Quoted rates shall be inclusive for excavating of pit and cost of bleaching powder.

All as per item 1.00 above but for 50 users capacity and -ditto-.

All as per item 1.00 above but for 20 users capacity and -ditto-.

All as per item 1.00 above but for 10 users capacity and -ditto-.

Material and labour for cleaning and desludging of existing grease trap of any capacity completely solid/liquid oiling sludge by pumping or any mechanical means from inside of the grease traps and depositing the oily sludge in excavated pits (required size and depth) to a distance n.exc. 50mtr from the grease trap. Top layers of excavated pit shall be covered by sprinkling bleaching powder @ 200gms/sqm for disinfection purpose complete all as specified and directed. Note : Quoted rates shall be inclusive for excavating of pit and cost of bleaching powder.

Material and labour for cleaning and de-silting/desludging of blocked sewage pipe line 150 mm dia and any depth including taking out sludge/silt and other foreign materials from sewage pipe line in any depth by rodding with using PVC/Steel rod or split bamboo sticks throughly between adjacent manholes still clearing flow of sewage line is observed, passing knots kamto and disc of required size or pumping out liquid waste / sewage, plugging and diverting the flow to the drain if necessary and stacking the removed silt/slugde in deposits as directed including depositing the sludge in excavated pits (required size and depth) to a distance n.exc. 50mtr from the manholes. Top layers of excavated pit shall be covered by sprinkling bleaching powder @ 200gms/sqm for disinfection purpose complete all as specified and directed. Note : Quoted rates shall be inclusive for excavating of pit and cost of bleaching powder.

All as per item 6.00 above but for 200mm dia of pipe and any depth and -ditto-.

All as per item 6.00 above but for 100mm dia of pipe and any depth and -ditto-.

Material and labour for cleaning and desludging of existing manholes of any size and any depth completely solid/liquid sludge by pumping or any mechanical means from manholes including taking out sludge/silt and other foreign materials from manhole and gully traps of any size and depth by showel, rodding or split bamboo sticks throughly from manholes and clearing still liquid sludge flow between adjacent manholes is observed, passing knots kamto and disc of required size or pumping out liquid waste/sewage, removed from manholes and depositing the sludge in excavated pits (required size and depth) to a distance n.exc. 50mtr. Top layers of excavated pit shall be covered by sprinkling bleaching powder @ 200gms/sqm for disinfection purpose complete all as specified and directed. Note : Quoted rates shall be inclusive for excavating of pit and cost of bleaching powder.

Material and labour for cleaning/choked EWC/IWC/floor trap/gully trap and minor cleaning of manholes and sewage pipeline etc from inside/outside of the bldg upto first manholes of any type and size as and when complaints occurred including removing and refixing of grating using hand pressure or vacuum pressure etc. complete all as specified and directed. Note: a) The contractor shall be responsible for maintain daily job card with deployment of 01 No of Safaiwala by him to obtain signature of IC complaints cell and deposited after complition on daily basis. b) Complaints to be attended in Technical area of 6 wing in different locations. c) The contractor shall be responsible for attending complaints within 24 hours of reciept of complaints fron Engr-in-Charge failing which 50% deduction shall be imposed on quoted rate. d) Payment of safaiwala shall be deemed to be included in quoted rate by the contractor.