Public Health Engineering Department Tender

d) 90 mm dia.

e) 110 mm dia.

Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75m In ground floor including roof. (b) Upto 150 mm. thick

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant IS codes. Pakur Variety

Filling the pipe line with water, testing hydraulically as per I.S 3114-1965 (Article-6) in section of a length not exceeding 500mtr. for head of pressure as per specification including supplying installing and fixing all equipments such as diesel pump set, blank flange, pressure gauge, valve, pressure pump and all other tools and plants including drilling topping and plugging of necessary holes to pipes, blocking ends providing temporary thrust block and subsequent blocking of holes and other jointing materials and dismantling and removal of the same including disposal of water etc. all complete as per specification and direction of EIC. The rate is inclusive of cost of requisite water to be arranged by the contractor (Recovery rate of water @ Rs.10.00/m3, if contractor used water from deptt. source). B) For UPVC/HDPE Pipe a) 50 mm dia

b) 63mm dia

c) 75mm dia

d) 90mm dia

e) 110mm dia

Cleaning thoroughly the inner surface of pipe line including specials and valves by flushing with water and subsequently disinfection of the same pipe line by flushing again with water containing bleaching powder resulting in residual chlorine not less than 15mg/ltrs. after 24hrs. of such filling including laboratory testing of water samples obtain from the disinfested pipe line and disposal of water from the pipe line after completion of the work. The rates including of cost of requisite water to be arranged by the contractor) (The rate of water @Rs. 10/m3 may be recovered, if the contractor used water from deptt. source). B) For UPVC/HDPE Pipe a) 50 mm dia

b) 63mm dia

c) 75mm dia

d) 90mm dia

e) 110mm dia

Submission of complete detailed drawing of distribution system, rising main etc. after execution of work showing position of different types of valves, fittings/specials sluice valve chamber with location, node to node wise in the sanctioned drawing as completion drawing of the water supply scheme as per direction and satisfaction of EIC. The list of dia wise fitting/specials, different pipes ;of valve used in the rising main should be shown in the completion drawing (not separate) with verified by SAE & AE in-charge of the scheme. The above drawing will be submitted in 5 copies.

Surging of existing tube well with chemical treatment and bucket wash (prior to use of compressor machine) and developing the tube well with compressor machine at least 3 (three) days at 8 (eight) hours per day till the yield is obtained at least by 75% of the total specified yield of the tube well (measured by 'V' notch tank) and draw down is within the permissible limit of 10% variation and water so obtained after such washing and developing will be free from sand and bacteria for which test report from the Public Analyst is to be obtained. (The rate is inclusive of all labour and materials including hire charges of tools and plants and cost of materials.) (a) For tube well of size bigger than 100mm dia. with top enlargement to have yield of 6000 gallons per hour.

Conducting geophysical survey for ground water potentiality and to evaluate the layer parameters in terms of depth by surface registivity technique adopting Vertical Electrical Sounding (VES) method for locating pin pointed location of tube well including charges for instruments & transportation thereof and services all complete at site and submission of data collected from each site for analysis (For each site at least 3 nos. location are to be surveyed). c) for depth greater than 200 metres

Interpretation of VES data including analysis of data & interpretation of layer parameters and submission of report including expected yeild.

Mobilisation and transportion of the Rig machine and its accessories and others materials, etc. to the site.

Drilling bore hole in DTH method through any kind of soils and rocks in overburden suitable for lowering and fitting fixing of 200 mm dia. casing pipe ( casing pipe will be supplied by departmentally) up to an average depth of 25 (+/-) 5 mtrs. and subsequently 165 mm diameter boring through any kind of rocky formation upto a total depth of 170 mtrs (for dry drilling or sufficient water not achived, drilling may be continued upto 200 mtrs) including all other works necessary for boring and lowering, fitting, fixing of MSERW / UPVC casing pipes suitable for 165 mm dia drilling in rock bed and grouting the same as per direction of E.I.C. including (in case of MSERW casing pipes) the cost of welding of MSERW casing pipes and welding the top of the casing pipe with 1 no. 8 mm thick MS cover plate (with supply and delivery of the plate). Necessary arrangement to be made for proper security of bore hole. (Rates are inclusive of all materials necessary for drilling works). Note:- a) MSERW / UPVC casing pipes should be properly inserted or lowered in overburden zone for proper RBTW formation. b) In case of collapse in borehole, payment will be done for clear measurable depth only. a) 0 to 25 mtrs.

b) 25 to 170 mtrs. or above

Supply and delivery of UPVC pipe (CD) conforming to IS 12818:2010. (CIPET Certified) c) 200 mm dia.

Washing and developing tube well with air compressor pump and engine for 8 (Eight) hours continuous pumping per day with necessary arrangements for testing the yeild in gallons per hour with 'V' notch including hire and labour charges for all tools and plants and scaffolding as required.

Electro-logging charge.

Water sample collection and chemical test including Arsenic Test.

Supply and delivery of UPVC Cap c) 200 mm dia.

Add GST @18% on sum of Item No. 1 to 29

Add Cess @1% on sum of Item No. 1 to 30