Command Area Development Authority Tender

Providing, fixing,testing and commissioning of pressure gauge 2` dial with Glycerin filled (N.S. Item)

Supplying, assembling, lowering and fixing in vertical position in bore well, Unplasticised PVC Shallow well casing (CS) pipe of required dia, conforming to IS: 12818, including required hire and labour charges, fittings and accessories etc. all complete, for all depths, as per direction of Engineer -incharge. @ 200 mm nominal size dia.

Supply of cage type wire wound screens as per IS 8110 (Type-D), suitable for well depth upto 200 mtr, material of construction SS 304, nominal size 200mm, thickness 6.3mm, slot opening 1.0mm

Supply of cage type wire wound screens as per IS 8110 (Type-D), suitable for well depth upto 200 mtr, material of construction SS 304, nominal size 200mm, thickness 6.3mm, slot opening 1.5mm

Providing, laying, aligning, and jointing with butt fusion welding techniques (IS 7634 (Part 2) : 2012) at all level/ depths ISI marked PE-80 PN 4 pipe, SDR 26, 110mm dia for portable water supply as per IS 4984-2016 (amended up to date) in trenches in complete, including cost of all PE Specials, labour, sectional hydro testing (including the cost and conveyance of water to site for testing) and commissioning as per Technical Specifications and approved make as per direction of Engineer. including cost of third party inspection (Make Duraline,Reliance, jain Irrigation, Nimbus, Finolex, Hasti, or equivalent).

Providing, laying, aligning, and jointing with butt fusion welding techniques (IS 7634 (Part 2) : 2012) at all level/ depths ISI marked PE pipe of PE-80 grade and PN - as per design for portable water supply as per IS 4984-2016 (amended up to date) in trenches in complete, including cost of PE Specials, labour, sectional hydro testing (including the cost and conveyance of water to site for testing) and commissioning as per Technical Specifications and as per direction of Engineer. c) PE80 PN4 pipe 180mm dia

Electrical Resistivity Survey (ERS) with deep penetration, generator operated, DC resistivity meter to know the type of subsurface data at different depth including transportation of the equipments and manpower, complete job as per IS 15736:2007 inclusive of .1) site visit 2) to analyze the physiographic units of the study area for geophysical sounding. 3) underground geo hydrological survey to access the porosity and permeability of aquifers and geometry of the entire / multiple aquifers systems at decided locations. 4) demarcation of ground water potential zones through 250 ves and site selection for required no of recharge wells/tube wells as per feasibility for groundwater recharge. 5) calculation of approximate rain water available for harvesting of each site based on the area of catchments measured on the site during survey, subject to average annual rainfall of the area. 6) to study drainage pattern, soil texture, seepage rate. to study water well structures in and around the area with respect to quality yield, litho logy and aquifer characteristic up to the explored depth. 7) ground work to collect the data pertaining to the existing boreholes and open wells, site geology, and data collection from relevant govt. agencies on rainfall peak intensity, water bodies, runoff, catchments, etc. 8) providing site specific design of the basic rain water harvesting scheme. 9) survey of existing dead borewell, reporting for its potential and rejuvenation solution and its cost.),certification of installation of Borehole and fixtures as per ERS, including providing the data and report from time to time in digital and booklet for, annual periodical inspection by certified Hydrologist upto 05 years and inclusive of Annual Maintenance for 05 years. Note :- The work will be considered completed after successful installation of Borewells. 10% security will be deducted in each bill of the work, which will be released after completion of work on the production of Bank Guarantee of same value , out of which 2% will be released annually after successful running and annual maintenance of the system, on the production of satisfaction certificate by concerned Executive Engineer.

Supply and jointing of 160 mm 6 Kg/cm2 PE-80 HDPE pipe (for jointing floater, all filters, PRV etc) .