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Disinfections of the well including supply of sufficient quantity of bleaching powder (33% strength) to obtain chlorinated water having 150 ppm free chlorine in the well complete as per standard specification and accepted by the Engineer-in-charge.

considering 1 no.

SL Item Name Quantity Unit Item Rate (Taka) Item Unit Unit Price (Taka) Sub Total (Taka)
1 Disinfections of tube-well using bleaching powder (for 50 mm x 125 mm tube-well) Cost for disinfection of the tube well including supply of all the materials and other necessary cost as per specification (for 50 mm x 125 mm tube-well) 1 LS 1340 LS 1340 1340
Sub-Total 1340
Contractor's Profit 10% 0.1 134
Contractor's Overhead Expenses 3.5% 0.035 46.9
Total 1520.9
Add VAT with adjustment factor. 1.08108 7.5% 0.075 123.32
Grand Total 1644.22
Rate per each 1644
Rate per each 1644
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