M and R to WSS in Tarapur Industrial Area.. Providing encasing to main pipeline at various approaches of villages along the Chillar-Boisar road.

Lift 0 to 1.5 M

Lift 0 to 1.5 M

Add for every additional lift of 1.5 M beyond initial lift of 1.5 M for Item Nos. 1 Above

Lift 0 to 1.5 M

Add for every additional lift beyond initial lift of 1.5 M for Iabove tem Nos. 3 and 4

Providing dry trap/ granite/ quartzite/ gneiss, rubble stone soling in 15 cm to 20 cm thick layers including hand packing and compacting, etc. complete. (Bd-A-12/264)

(Cement 5.90 bags / cum) Spec. No. - Bd E /1 Page No. 287 and B-7, Page No. 38 2) In PCC M-150

In RCC M-250

Corrosion Resistant Steel (Fe 500)

Dewatering the excavated trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-in-charge (including cost of machinery, labour, fuel), etc. complete. (Bd-A-9/261) (i) The Contractor at his request may be allowed to start construction of masonry steining so as not to allow silting of well in oncoming monsoon and while paying masonry, 25% amount shall be withheld and released only when excavation to the full depth is completed. (ii) Dewatering : Total dewatering charges are to be proposed in the tender as lumpsum amount and 75% is payable for excavation and 25% is payable for construction of well / gallery. Out of 75% excavation, break-up shall be as under 25% for last 1 M depth. 20% for 2 M depth which is just above last 1 M depth. 15% for 2 M depth which is just above last 3 M depth. 15% for the rest of depth from water table level. The above conditions will restrict the tendencies of agencies to avoid deepening of wells, etc. to the required depth.

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