bids are invited for earthwork for septic tank and toilet foundation in excavation by manual means in trenches for foundations drains etc , providing andproviding and laying in position cement concrete laying in position cement concrete , providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering , centering and shuttering including strutting propping etc and removal of form work for mass concrete plinth beams , 15 mm cement plaster on the rough side of the plinth mix in 1 6 1cement 6 coarse sand base of the toilets , providing corrugated g i sheet roofing including vertical for two toilet each size 4 feet by 5 feet , hard packed stone filling under shed floor in horizontal layers , sanitary fitting 2 toilet sheet 2 taps 500l sentax tank with all accessories complete job total quantity : 510