07-0156 Sewer #2 051308
CITY OF YELM SEWER DEPARTMENT
May 13, 2008
Re: 2nd Civil review Ft Steven’s Elementary School Remodel SPR-07-0156-YL
STEP Tank depth of bury not to exceed 60” from top of upper most riser lid to invert of inlet pipe to tank.
Manholes need to be constructed in such a way as to allow NO infiltration. Prefer to have no man holes or piping through the manholes with clean-outs available within the manholes.
Vacuum Test Manholes to ensure water tightness.
Waterproof, Bolt down lids on Manholes
Hose bib req. w/in 50’ of pump end tank, this is used for servicing the pumps and pump screens, etc. Please.
Supply calculations supporting this proposed tank size.
Need full set of submittals on this proposed tank.
Side sewers to be leak tested.
Existing Grease Trap to be leak tested.
Service line to be sleeved instead of encased in concrete.
Line from pumps in Tank to main on 100th Street is Service Line not force main.