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<br />The manifold and line configurations of the PVC piping appear in Drawing 2. All slip- <br />joint piping shall be fiscd to fittings using joining compound (e.g. -PVC cement) suitable <br />for this application. Threaded fittings shall be assembled using TeOonOO scaling tape. <br />lnsutllation, and routing of the piping from the manifold to the wellheads may vary, <br />depending on the actual DPE well locations. <br />4.2.2 /1lnn~er or [~rrcuun+ Pu+up <br />"fhc blower or vacuum pump has been sized and selected by GRM to meet the <br />pcrfornuutcc specifications for the system. ERM shall procure and install tither a <br />RootsPAh (132 blower assembly, or Roots 250=4 DVJ vacuum pump. The inlet to the <br />blower o+' vacuum pump shall be fiucd with and inline filter, and vacuum relict valve. <br />'I'hc discharge from the blown or vncuum pump will be cyuippcd with a silencer. <br />4.2..E hr+ack-Our Trrnk <br />"I he system shall be fitted with a 200-gallon knock-out tank to separate rccovcrcd fluids <br />from the recovered soil vapor stream. The knock-out tank has bcen sized to <br />accommodate an hourly recovery of l20 gallons oC rccovcrcd total fluids (0.5 GPM per <br />well, for four wells), and not exceed GO% of total tank capacity, and to assure separation <br />of total fluids from the air stream. Operating and alarm levels for the knock-out tank arc <br />discussed in Section 4.2.7. <br />nll bulkhead fittings and access ways into the knock-out tank shall be appropriately <br />sealed to maintain vncuum required for operation. <br />ERty(-Rocky Mountain, Inc. 8 Printed on Recycled Paper <br />P:\ 1000\S W 1'C\961019. I \Des ign. Doc <br />