Provision of Recharge shaft cum borewell for augmentation of water supply at AFS Amla

Amount

Excavating in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundations etc or for shafts, well cesspits, manholes, pier holes, etc. n. exc 10 sqm on plan and not exceeding 1.5 m in depth and getting out soft/loose soil. (84.24+105)

M&L for brickwork with fly ash bricks, straight or curved on plan exc 6m mean radius built in cement mortar 1:4 all as specified and as directed.

M&L 15mm thick rendering on fair faces of brick or concrete surfaces in cement mortar 1:4 finished fair and even without using extra cement complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layer not exceeding 25 cm thick in any type of soil complete all as specified and directed. (45+75.82)

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point.

Excavation over areas in any type of soil, n.exc 1.5m deep and getting out etc complete all as specified and as directed.

Excavation over areasin any type of soil n.exc 1.5m but not exc 3.00m deep and getting out etc complete all as specified and as directed.

Surface excavation n.exc 30cm deep and averaging 15cm deep and getting out in Soft/loose soil.

S&F and laying 2000mm bore Reinforced concrete pipes / rings of height 30cm, class NP3, laid and jointed complete with collars etc complete all as specified and directed.

M&L for 100mm thick PCC 1:4:8 Type D2 as in sub base of drain complete all as specified and directed complete.

M&L PCC 1:2:4 type B1 using 20 mm graded stone aggregate as in coping and the like including weathering slightly rounded or chamfered angles and finishing exposed faces of concrete complete all as specified & as directed.

M&L for PCC 1:2:4 type B-0 using 12.5mm graded stone aggregate as in surface channels and drains base with and including forms moulds as required etc complete all as specified and directed.

M&L Extra for forming fair finished drain or channel exc 30cm inner girth in cement concrete, uising extra cement including forms moulds, mitred ends etc complete all as specified and directed

M&L for stone boulder pitching with random rubble including grouting with cement and sand mortar 1:6 complete all as specified and as directed

M&L loose filling broken stone boulders aggregate gauge 40 to 45 mm all as specified and as directed

M&L loose filling broken stone boulders aggregate gauge 8 to 25 mm all as specified and as directed

Drilling of trial bore in any type of strata soil/ rock perfectly vertical 200mm bore hole for maximum upto 150 mtr depth by DTH method or any other approved method including formation of sample collection and discharge of water, shifting transportation of material and equipment equipment and preparation etc complete all as specified and as directed. Note:- (a) Development of trial bore well along with other connected works will be executed only if adequate water boring strata is encountered during the drilling of trial bore. (b) Decision of the Accepting Officer in regard so to above shall be final and binding on be contractor and no claim whatever will be entertained in this regard. (c) The above quantities are for four bore wells. (d) Preparation of litholog as per the instruction of engineer-in-charge.

Development of tube well with compressed air and after with 25% extra capacity pump by pumping muddy water till the clear water appears complete all as specified and as directed.

Development of trial bore by reaming in following steps:-

200 mm to 350 mm

Supply and installation of UPVC casing pipe confirming to all necessary accessories latest version of IS12818-2010

200 mm (8") nominal bore, outer dia 225-225.5 mm and thickness 7.6-8.8 mm including all accessories for jointing the pipes complete all as specified and as directed.

Supply and installation of UPVC slotted pipes with all necessary accessories confirming to latest version of IS12818-2010 and size as per :-

200 mm (8") nominal bore, outer dia 225-225.5 mm and thickness 7.6-8.8 mm

M&L for Conducting yeild test of tubewell by operating the pumping set continuously for a period of 0-8 hours and measuring the discharge and drawdown of tubewell with 30 mins of time interval as per the direction of Engr-in-charge. Note:- (i) Pump set and T&P for yeild test will be provided by the contactor (ii) Operating cost for T&P and pump set will not be paid seperately as the same is included in the item rate.

For first 1 hour

After first 1 hour

Supply and fix in newly fabricated mild steel well cap of size 300 mm dia, 6mm thick with three numbers holes and handle to match with existing cap at site including welding, two coat of anticorrosive paint,., complete all as specified and as directed.

Preparation and submission of Detailed report of soil of each level during boring of borewell in in sample strata box with necessary data to be submitted by the contractor for each bore well test to Engineer-in-charge.

Supply, install and testing of multistage submersible pumpset with induction squirrel cage motor operational on 3 phase 440 Volts, 50 Hz 5HP shaft power with dischare of 160LPM at 90 meter head including necessary, DOL starter,clamps,bolts,6sqmm 3 core ISI marked copper cable for the whole run of column pipe upto the terminal box on the ground complete all as specified and directed. Make : Kirloskar/ Jyoti/ Calama/WASP

Labour charges for lowering of new/old submersible Pump set in borewell alongwith complete accessories with special T & P etc. complete as required with Supply & fixing of new nut bolt, rubber packing, socket, flange and GI nipple etc. as complete as required. ( All the T&P required at site for lowering of submersible pump set is deemed in the quoated rate)

Material and labour for testing potable water sample collected from borewell and submission to nearest laboratory for chemical and bacteriolilogical anaylysis district Laboratory, P.H.E. Madhya Pradesh including transportation complete all as specified and directed. Note:- The rate quoted by contractor includes the following: 1. Collecting water samples in sterlised containers from the location as directed by Eng-in-Charge 2. Transporting the collected sample immediately to the lab and submitting the test report to the Eng-in-Charge.

Supply and laying High density polyethylene (HDPE) pipes bore 50 mm bore of pressure rating 6 kgf/sq. Cm with all fittings including bends, sockets, complete accessories required at site all as specified and as directed.

Supply and fixing of column pipe heavy grade duty Galvanised Iron tubing of , size 50 mm bore in 3 mtr length or as directed by Engr -in- Charge with heavy duty fittings like long screwed sockets suitable for fixing submersible pump set all as specified and as directed.

Supply and laying 80 mm bore glavanized steel tubing medium grade with all fitting ( union, elbow, sockets ,bends, GI flanges, nuts & bolts etc laid in trenches complete all as specified and as directed.

Supply & Fix water meter 80 mm bore double flanged Woltman type MID marked class -B IP 68 with removable mechanism including nuts, bolts, washer with rubber insertion/ packing on both side of the flange complete all as specified and as directed.

Supply install and testing of flange type Y type CI strainer 80 mm bore with stainless steel mesh having bolted bonnet with SS 302 perforated screen sheet including all necessary fitting and fixtures all as specified and as directed at site.

M&L for Non return sluice valve ( swing check type reflux valve ) of size 80mm cast iron body both end flanged type including all necessary fitting i.e rubber gasket, nuts,bolts washer all as directed at site.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25.0 sq mm 4 core

S&F 3 core flat cable water proof with bare bunched copper conductor insulated and sheathed with PVC 1100 volt grade of size 4 sq mm for submersible pump complete all as specified and directed at site.

M & L earthing complete with galvanised steel earth plate electrode 600 x 600 x 6.15mm thick,burried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5m below normal ground level connected to & including GI earth strip 25 x 4mm as earthing lead by means of bolts, nuts, and washers of galvanised iron or steel all as shown in electrical plate no. 3 of SSR Part I, connected to main switch board and testing on completion with and including necessary earth work in any strata, filling the pit with charcoal and common salt surrounding the earth plate , watering arrangements with 20 mm dia light grade GI pipe, GI funnel with wire mesh, PCC chamber with M-10 using 40mm graded stone aggregates with RCC cover, 550 x 550 x 50mm thick, with type B1, reinforced with 10mm CTD bars @ 150mm c/c, both ways with 2 nos drop handles of 10mm dia round bars 400m long, 40mm bore, medium grade GI pipe for earth lead protection pipe up to test point complete all as specified and directed.

Note:- The amount against the Schedule of Credit mentioned in the tender document shall be deducted from the total amount quoted against Sch 'A' while deriving the Contract Sum for Acceptance.

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