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- e <br /> /(9 K ORURO THIS SYSTEM IS DESt6NED FOR <br /> ' BEDROOMS. ANY INCREASE IN NUMBER <br /> OF BEDROOMS tNYAUDATES THIS DESIGN. <br /> Joseph Olson D.B.A. <br /> Rusty Olson's--Soil and Percolation Vesting <br /> Joseph J. Olson--NIPCA License#810 <br /> 11481 Riverview Rd. NE, Hanover, MN 55341 <br /> (763) 498-8779 Fax (763) 498-8290 <br /> 11 ay_25,2017 <br /> o\ Frearick Dufaul: <br /> .20 Truffuia Trail <br /> i.Jrono. Hennepin County <br /> i o whom it coati-concern. <br /> \'a;contacted by 4=recrick Dufault to design the repair for the failing mound system at 120 Truffula"Fra:; <br /> �. in the city of Orono. The results of the inspection and design are as follows. <br /> Soil oorings indicated that the existing roc.bed does not meet the three-foot separation to the periodicall\ <br /> saturated soils. Therefore, the solution is to remove the existing rock bed and any of the sand material under the roti: <br /> that is not cean. Then replace is with clean sand to the proper elevation. <br /> The original soils under the uphill side of the rock bed at the south end are at elevation..-99-7. The system <br /> was original installed with 1.5 feet of sand under the uphill side ofthe rock bed.The bottom of the new rock bed <br /> must be placed at the elevation of 102.' <br /> Tne existing tanks may be used upon approval of the local inspector. <br /> There is one rock bed 68 feet in length.This will take approximately 23 cubic yards of rock with six inches <br /> rocK. <br /> The clean sand required will be approximately 76 cubic yaras. This number may vary due to the .`act that. <br /> V-,'e don't know how much ofthe sand will be removed until the rock bed is removed. <br /> The sandy loam cap wili require approximately 21 cubic yards. <br /> The laterals will take 198 lineal feet of two-inch pipe with 7;23 inch perorations. Clean outs must be <br /> installed on the end of the iaterais. <br /> he topsoil required will be approximateiv 58 cubic yards. <br /> The sump curve :s 39 pm(n 23 feet of head pressure. Set float to pump 196 gallons <br /> It you nave any questions Tease cal'. <br /> Sineereiy. CITY OF ORONO <br /> SEPTIC4PE IT PLAE F,W <br /> INSPECT R <br /> PERMIT NO. <br /> �osepl.J. Olsor. APPRO ED AS SUBMITTLD <br /> APPROVED WITH C'ORRIiCTi0 S AS K(M-D <br /> NOT APPROVFD-CORRF('T& RFSt'13�.Il; <br /> Thcsc conunenis are Ihr your infonn�uion. All <br /> in full compiinttce with;til ttphlic;.itic:c� lc ".i <br /> Requirements incluciing itcuns not,;cci�lul <br /> KLEP THIS PLAN SPIT()N SP;E . <br />