03-8362 Sewer Review No 1 073007
CITY OF YELM SEWER DEPARTMENT
July 30, 2007
Re: Yelm High School Bldg 400 STEP Tank Replacement Review
This Pump Control Panel shall be mounted on “Uni-Strut” supports rather than a 4”X8” pressure treated post (we are replacing rotted – out posts now)
A hose bib must be provided within 50’ for servicing this tank.
We have no idea how many hours these pumps have run since they were installed, as the hour meters seem to have been by-passed (the hour meters show less than 1 hour per pump, yet the
system was on line for almost 1 year??) New pumps/motors should be provided.
The detail on the drawings that shows the STEP Tank shows only 3 floats. This system will have 4 floats.
Below the drawing showing the STEP tank in the notes, #5 should indicate “Orenco PVU 84 18-19”, not “PVU 72 18-19” as shown. The biotube shall be 84” long.