405 SE EVERETT MALL WAY 2018-01-02 MF Import

FA5Li^G 4�A 1 P - - ILaixW +4 11 tij q f ROBERT SCAL.ZO Inc. ' GENERAL CONTRACTOR& DEVELOPER RO-SE-RS-196CO 22506 N.E. 46th St. o Redmond, WA 98053 Phone (206) 868-0684 August 25, 1987 City of Everett Plblic Works Permit Department Everett, Washington Re: Greentree Plaza Storm Water Detention Vault Dear Sir; on June 28, 1987 you approved the plans of Barghausen Consulting Engineers for this project. on the plans Job #2092 sheet C2, the landscape areas are shown and the elevations on the top of the vault. The west end had an elevation of 602.0 and the east end on elevation of 605.0. There is an error on the east end elevation. We are submitting for your approval the revised C2 drawing dated August 14, 1987 by Barghausen showing the east end to also be 602.0. The ridge line elevation 602.12 will take care of the surface runoff. These revised elevations of 602.0 on the corners are the elevations and the roof loadings that this vault was designed to carry. The original information furnished you are for the 602.0 corner elevations and loadings. Enclosed you will find a statement from Central Prestress Co. who designed the roof panels and ere furnishing them for this project. Central Prestress Co. and our structural engineer, J. Clark Johnson P.E., confirm the design as original submitted. Regarding the change of select material under the footings as shown in the structural plan to 2" PVC weep lines through the footings, this change was instituted in consultation with the structural engineer prior to bidding the job. The select material is not necessary where proper soils pressure is obtained on native soil - the select material was not even bid into the job and the PVC pipe will take are of any hydro- static pressure under the slab. We are assured by J. Clark Johnson that select material under footings will not be placed on any future drawings. The PNIC pipe in question is 2" -200 PSI - P'A pipe PVC1120-AST14D 2241. Sincerely, Robert J. Scalzo President Enclosures