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Bidjugde
JOB
Well 7 & 13 Pump and Water Well Rehab
BID DATE
06/2/14 - 2:00
AGENCY
Huntington Beach
ESTIMATE
n/a
SCOPE
 Remove right angle gear (leave on site) and pump assembly  Video log well,  Wire brush (using new brush trimmed to properly fit casing. Sputter must be used (8hr minimum) No Crane unless outfitted with sputter.  Double shot sonar jet with light charge or “Air Burst”  Re-video well.  Wire brush again with new brush (additional 8 hours) based on results of second video.  Bail well to within 5’ of original depth taking care not to damage casing shoe. Properly dispose removed material  Install new pump and column assembly using existing discharge head. Project Instructions  Replace existing bowl assembly with new “Flowserve (no equals)” lined pump bowl.  Bowl is cast iron with bronze impellers to be polished and balanced.  5’ column pups will be used on inlet & outlet of bowl assembly  Bowl assembly shafting and collets shall be 416 stainless steel.  Remainder of shafting to be 416 stainless steel using carbon steel shaft couplings.  Replace or rebuild packing box assembly.  Replace threaded column assembly (12” x 10’, 2-3/16” T.C.) using steel column pipe and couplings (no cast iron couplings)  New threaded bearing retainers to be bronze with new rubber line shaft bearings, include retainers on 5’ column pups including bowl outlet.  All bolting to be 316 SS.  Remove top column and flange and verify parallel and concentric to center line of pump.  Provide stainless steel air line for well sounding, supply direct reading well level gauge complete. Air line will be secured to pump coulumn with stainless steel banding using no fittings or connections below the discharge head baseplate.  Provide proper access into discharge head for correct water pre-lube of shafting. Sharon Griffin sgriffin@surfcity-hb.org

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