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a -,ilnum of twelve (i2) 1. <br /> 3 On new w so <br /> the casing <br /> shah. extend <br /> j inches ab3ve the g <br /> round suciace or floor. Upon completion Of <br /> a seal oc cover shall <br /> the drilling <br /> or until the pump is installed, <br /> be provided on top <br /> Of the casing- <br /> i <br /> SANITARY SEAL <br /> D. taut or <br /> e pump is mounted directly over the casing, a g <br /> 1• When th p <br /> i <br /> provided co make a water tight joint ibetween <br /> mastic seal shall be P i <br /> the pump and the base* into the <br /> the pWhich open <br /> 2. All holes in the base of pump directly <br /> is offset or submersible, a 4 <br /> I <br /> well shall be sealed. If the between the pipe pump <br /> column or other <br /> sanitary seal shall be P <br /> rovided <br /> I <br /> pipes or cables and the casing. other <br /> shall b <br /> e shape <br /> 3. . The seal d to prevent retention of water or <br /> foreign materials- <br /> is COVER <br /> E• or before the pump is installed, <br /> • construction o£ the well, j <br /> �,� During for any other reason the top <br /> being made, or if <br /> or while repairs are <br /> protected <br /> is exposed, it must be p ed from foreign <br /> i <br /> of the. well casing the well by use of a seal or <br /> objects or contamination <br /> entering <br /> cover. <br /> g� INSTALLATION OF CASING <br /> und and is to be avoided during <br /> e to the casing section and joints <br /> water <br /> 1� <br /> Damage must be structurally so <br /> installation. The joints <br /> tight. <br /> PERFORATIONS weaken or deform the <br /> G. <br /> of casing should not unduly 50) feet <br /> 1• The perforating within fifty <br /> casing. The casing <br /> shall not be perforated <br /> t <br /> + -5- <br /> t <br />