REPAIR/ REPLACEMENT OF MS PIPES, FILTER MEDIA AND CONNECTED WORKS OF IRP AT PUMP HOUSE NO 2, 4, 6 AND 10 AT MIL STN AGARTALA

Amount

Schedule'A' Part-I: External Water Supply works

M&L ,Taking down existing Filter media catalytic of complete layers through inspection / man hole door provided in existing IRP/activated carbon filter by crawelling / showelling with suitable tools and Cleaning for inside shell by brushing , flusing including taking out existing PVC push fit type strainers fitted in Disc & Bed plate of RP/activated carbon filter and disposal of media all as specified and directed . Note : Welding / Bracing / patching for disc and bed plate including nut bolts and washer if required to make good shall be included in rate quoted for item

M&L ,Taking down existing Filter media catalytic of complete layers through inspection door provided in existing Oxidation Chamber by crawelling / showelling with suitable tools and Cleaning for inside shell by brushing , flusing including taking out existing PVC push fit type strainers fitted in Disc & Bed plate of Oxidation chamberand disposal of media all as specified and directed Note : Welding / Bracing / patching for disc and bed plate including nut bolts and washer if required to make good shall be included in rate quoted for item

M&L applying two coats of anticorrrosive bituminous paint over a coat of red oxide primer used in potable waterin inner periphery and painting with two coats of synthetic enamel paint over a coat of red oxide primer on outer surface including writing of type of installation & capcity by sythetic enamel paint of white colour and MES No in dark red colour for IRP/activated carbon filte by using brush of approved paint all as specified and directed .

M&L applying two coats of anticorrrosive bituminous paint over a coat of red oxide primer used in potable waterin inner periphery and painting with two coats of synthetic enamel paint over a coat of red oxide primer on outer surface including writing of type of installation & capcity by sythetic enamel paint of white colour and MES No in dark red colour e for Oxidation chamber by using brush of approved paint all as specified and directed .

Supply and fixing new PVC push fit type strainer on complete disc & bed plate for IRP and Oxidation chamber of approved make all as specified and directed.

M&L for filling Catalytic media in IRP, Oxidation Chamber and Rapid sand filter as per OEM recommended layer procedure for specific approved catalytic size and material of following :- (i) 6"/150 mm of 20 x 30mm gravels. (ii) 4"/100 mm of 12 x 20 mm gravels . (iii) 4"/100 mm of 06 x 12 mm gravels. (iv) 4"/100 mm of 03 x1.5 mm gravels. (v) 6"/150 mm of 16 x32 mesh sand. (vi) 18" /450mm of 10-32 mesh sand Note : Manganese di oxide (Mno2) shall be measured and paid under Sr No 7 here in after

M&L for filling Manganese di oxide (Mno2) of approved make as per OEM recommended layer procedure for IRP , Oxidation Chamber and Rapid Sand Filter all as specified and directed.

M&L for filling Catalytic media in as per OEM recommended layer procedure for specific approved catalytic size and material of following :- (i) 6-4 mm pabbles. (ii) 10-6 mm pabbles. (iii) 20-12 mm pabbles. (iv) 40-25 mm pabbles.

Supply & fixing Activated carbon IV1000 in ctivated carbon filter

Supply, installing and testing butterfly valve, class PN-1.6, ISI marked suitable for 100 mm bore pipe with flanged ends and nuts, bolts & washers including dismantling unserviceable butterfly valve and removing from site of work complete all as specified and directed

Supply, installing and testing butterfly valve, class PN-1.6, ISI marked suitable for 100 mm bore pipe with flanged ends and nuts, bolts & washers including dismantling unserviceable butterfly valve and removing from site of work complete all as specified and directed

Supply & fixing connecting and testing of CI sluice valve ,ISI marked duly embossed 100 mm bore both ends flanged,with CI body and brass spindel with bolts and nuts ,operating wheel etc. including taking down old unserviceable,non rising type class PN-1.6 including ,jointing material rubber gasket, complete all as specified and directed.

Supply and lay 100 mm bore steel water tubing, galvanised 'medium grade’ with all necessary fittings and fixed complete to walls and ceilings or laid in floors complete all as specified and as directed

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc, required for complete and proper execution of the work. Refer Schedule 'A' notes for details.

M/S SANKAR GOPE

SHRI RAJESH DEY

M/S Ajoy Acharjee

M/S PAUL ENTERPRISE