Drilling of borewell at Vargatimol in Village Panchayat Barcem-Quedem of Quepem constituency.

Conducting Electrical Resistivity Sounding for ground water feasibility & locating borewell around the proposed area and interpret the available data with respect to the geological condition around the site, including submission of report with topography, geology, ground water feasible zone, type of feasible well, depth, casing pipe, size of borewell, expected yield etc. complete including transportation and labour charges.

Transportation from one drilling site to the next site, of the down the hole hammer drilling rig. along with the compressor, supports truck all the allied drilling instruments diesel and oil barrels drilling screw and labourers for all leads.

Setting of drilling rig on the drilling site and its shifting after completion of bore wells, drilling 203/150mm dia bore hole in all types of strata up to a maximum depth of 100mts and collecting and supplying representative sample of all soil rock strata encountered during drilling etc. complete. Over burden drilling 203mm dia and drilling through rock should be 150mm dia.

Development of borewell using air compressor air/back washing for a period of and less than hours until all lines are flushed out and steady discharge is attend & measuring the well discharge on 90-degree V notch or with a barrels and stop watch. tube wells by upto compressed air/back washing for a minimum period of two hours and all fines are flushed out including equipment for re-drilling and its removal after completion.

Providing 150mm (6") dia. G.I.pipes Medium grade (Class B) conforming to IS 1239/1973 for casing pipe including seam collar coupling, etc. complete and lowering the casing pipes in the drilling holes during drilling including fixing the pipe with socket of welding etc. complete.

Providing and fixing threaded well cap of cast iron/G.I suitable for 150mm (6) dia casing pipes bore wells as directed.

2 Core 6 sq.mm

2.5 sq.mm 3 core

6 sq.mm 2 core

(a) In soily strata( Masonry chamber not included)

Extra for using salt and charcoal for pipe earth electrode as required( 65 Kgs of Charcoal and 5 Kgs of Salt).

40 mm dia

40 mm dia

90 mm dia

Elbow PN 6 (6 kg/cm2)

90 mm dia

END CAP 6 (6 kg/cm2)

90 mm dia

Tee 6 (6 kg/cm2)

90 mm dia

Earth work in excavation by mechanical means (hydraulic excavator)/manual means in foundation pipeline trenches, drain not exceeding 1.5m in width 10 sq.m on plan including dressing of sides ramming of bottoms for all lead and lift including setting out the excavated soil & disposal of surplus soil with all lead including providing barricading danger lighting guarding as directed by departmental officer in all types strata comprising any of the materials such as soil, silt sand clay gravel moorum of all conglomerated laterite rock, soft rock fissured shattered decomposed rock or weathered rock and all such other materials as described under Appendix A to these specification either in full or in parts as the case may be adopting any approved method of methods as may be convenient or permitted inclusive of chiselling, wedging etc, blasting probhibited in all conglomerates as directed by the Engineer-in-charge etc, complete.

90 mm dia

Refilling the pipeline/foundation trenches plinth sides, foundation etc. with available excavated earth in layers not exceeding 20 cm depth consolidating each layer ramming and watering lead upto 50 M and all lifts and disposal of surplus earth as directed by Engineer in Charge.

63 mm to 110 mm OD

Supplying and installation of 4'' dia 5 H.P. submersible pump set having 126mtr head compatible to operate on 400V, 50Hz 3 phase power supply, 9.2A current, 2900 rpm and 6m3/hr discharge, consisting of pump, motor, coupling, strainer & built in N.R.V.