Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

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5.7.3.6.1 The contractor shall develop the well with his own equipment by such as wouldextract maximum practical quantity of sand, drilling and unwanted fine materialin order to bring the well to maximum yield per m of draw down and to sandfree condition. Compressed air, surge block or pump may be used fordevelopment work. This work must be done in a manner that does not causeformation.5.7.3.6.2 The well shall be developed either by surging and agitating or by over pumpingand back washing with an airlift and high velocity jetting, etc. any otheracceptable method may also be adopted. This development process shall becontinued until the stabilization of sand and gravel pack has taken place.5.7.3.6.3 The development of the tube-well by over-pumping should be done at 15% to25 % higher discharge than the expected discharge from the tube-well. Thefinal discharge should be free form sand with a maximum tolerance of 20 partsof sand in one million part of water by volume after 20 minutes of starting thepump.5.8 Abandoned wells- A well declared as abandoned by the Engineer-in-chargedue to non-verticality, caving in or any other defects attributable to the poorworkmanship of the contractor, unsuitability of his equipment shall be termedabandoned well. No payment for this shall be due to the contractor. In such acase, the well assembly if lowered (complete or incomplete) will have to bepulled out and retrieved by the contractor at his own cost.5.9 Erection of Pump and Accessories.- The contractor shall install in the tube wellsuitable pump and motor and their accessories as may be supplied from subdivisionalstores by the Engineer-in-charge. The store will have to be lifted fromsub-divisional stores by the contractor, labour charges only will be paid forerection work. Contractor shall very carefully and diligently do the work oferecting all the components in the pump assembly such as:-(1) Pump.(2) Motor.(3) Column pipe, delivery pipes, bends, valves etc.(4) Electric water level guard with signal cable and electrode.(5) Air line.(6) Water level gauge.(7) Pressure gauge.(8) Irrigation panel.The column pipes should be truly vertical without any kinds and securelyjointed so as to preclude any chances of pump failing and resulting in the wellbeing declared as abandoned in cases of the pump cannot be retrieved.5.10 Disinfection:5.10.1 The well shall be disinfected as per requirements, after completion of test foryield. All the exterior parts of the pump coming in contact with the water shallUrban Administration & Development Department Page 214
e thoroughly cleaned and dusted with powdered chlorine compound. In fact itshould be disinfected every time a new pump is installed or the one replacedafter repair.5.10.2 A stock solution of chlorine may be prepared by dissolving fresh bleachingpowder. For obtaining an applied standard concentration of 50 ppm, 1 liter ofthe stock solution shall be used to treat 300 liters of water.Urban Administration & Development Department Page 215
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GOVERNMENT OF MADHYA PRADESHDEPARTM
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Branch(i) A special form of cast ir
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A valve in which the closure to an
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Sullage waste Water:Spent water fro
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Laying:The approximate positions of
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CHAPTER NO.1CAST IRON SOCKET AND SP
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Socket and spigot pipes Class AWeig
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1.5 .4 Pipe shall be tested hydrost
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1.9.3 Mass (weight) of the various
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Diameter (mm)Weight (approx) kgHeav
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1.9.3.11 Cast iron plugs:-Diameter
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1.12.7 Caulking may be done with pn
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2.5 Thrust Blocks2.5.1 In case of b
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2.9.3 Should any test of the pipe l
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CHAPTER NO.3CAST IRON PIPES AND SPE
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3.4.2.2 Cast iron flanged spigot:-R
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3.4.2.6 All flanged cast iron tees:
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Nominal diameterTable 2.3Refer Tabl
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Table No.3.8DimensionWall thickness
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CHAPTER NO. 4DUCTILE IRON PRESSURE
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Nominal Diameter Outer diameter of
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4.3.2.4 Where the coating material
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Nominal DiameterDN (mm)Table No. 4.
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4.7.2.3 Lengths of FittingsThe perm
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during the jointing operations. As
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CHAPTER NO.5:UNPLASTICIZED PVC PIPE
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NominaloutsideDiameter(Nominalsize)
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5.10 Handling and storage5.10.1 Bec
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a)b) Size of the fitting and the ap
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5.14.5 Trench Bottom5.14.5.1 The tr
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CHAPTER NO.6CAST IRON VALVES6.1 App
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efore painting. All exposed machine
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with the main. For large aqueduct p
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6.4.7 Nominal sizes :-6.4.7.1 The r
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Table No.6.6Material for different
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CHAPTER -7GALVANIZED IRON PIPES, SP
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7.4.2 Globe Valves- The globe valve
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7.6 Testing of valves:-7.6.1 Genera
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NominalBoreDimensions and Nominal M
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7.10 Testing of Pipes :Following te
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Nominal BoreMinimum Outside Minimum
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7.15.2.2 Taper Screw Plug TestSocke
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7.20.2 All pipes and fittings shall
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S.NoTolerance and ovality is given
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8.7.2 The pipe shall be as uniform
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directional changes within the tren
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frequently used and in normal or sl
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8.22 Test to Establish Perfectibili
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8.26.6.3 PP Saddles8.26.6.3.1 The b
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g Bypass Pipe Carbon Steel IS1239(p
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9.4.1 Coupling Area of jointThis is
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Table No. 9.3Hydrostatic Design Pre
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polyester belts with a minimum widt
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9.19.4 Straight continues lengths o
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Table No. 10.2(Refer Table No.1 IS
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1592-2003. The tolerances on the in
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10.5.2.5 Weight of cast iron plain
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10.5.2.9 Weight of cast iron Plain
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10.8.1.1 Width- The width of the tr
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10.11.2 Cast Iron Detachable Joints
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shall be used between the straps an
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10.18.9.1 After the test has been c
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CHAPTER NO- 11SALT GLAZED STONEWRE
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11.3.2 Each pipe and fittings may a
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on each horizontal rail which is fi
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11.7.7 The joint with cast iron or
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CHAPTER NO- 12UNPLASTICIZED NON-PRE
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12.4 Dimensions of Pipes:12.4.1 Mea
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12.8 Trench:-(See Drawing No.3)12.8
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12.13.3 Care should be taken to lea
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12.17.6 HandlingFollowing Recommend
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12.17.10 Construction of backfill e
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CHAPTER - 13REINFORCED CEMENT CONCR
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Diameter ThicknessStrength Test Req
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Table 13.5(Refer Clause 8.2 IS 458
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efore the next pipe is laid. Adequa
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13.11.4 The water shall be filled t
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Chapter - 14SEWER APPURTENANCES14.1
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provided with cover of medium duty
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14.3.5.4.3 (c) By drop in previous
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Page 176 and 177: 14.25.3 Brick Masonry Chamber : Aft
Page 178 and 179: 15.2.5 Lift: the vertical distance
Page 180 and 181: ensure that drilling has been done
Page 182 and 183: accepted deductions (stated as a pe
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Page 186 and 187: v) Cleat bolt of size M-10vi)vii)Se
Page 188 and 189: 15.17.5.3 To protect persons from i
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Page 192 and 193: esults in unsuitable sub grade cond
Page 194 and 195: 15.17.14.7 Clear out space shall be
Page 196 and 197: 15.17.15.7.1 Ordinarily no surplus
Page 198 and 199: Water Supply pipes lines should be
Page 200 and 201: 16.3.3 Failure to remove the ridge
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Page 204 and 205: 17.7 Development of tube-well with
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Page 210 and 211: Annexure: ADRILLING OF TUBE WELL1.
Page 212 and 213: particularly those having clay or s
Page 214 and 215: 5.3.2 The shape of the openings sho
Page 218 and 219: STRATACHATANNEXURE-2Mohalla/BastiNa
Page 220 and 221: LocationApparentResistivelyAB/2Inte
Page 222 and 223: GRAVEL PACKED TUBE WELLSGAVEL PACKE
Page 224 and 225: HAND PUMP PLATEFORMUrban Administra
Page 226 and 227: Urban Administration & Development
Page 250: Urban Administration & Development
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Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

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