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November 19, 1992 <br />Bob Voronyak <br />1435 Bay Ridges Rd <br />Wayzata MN 55391 <br />RE-.,, Sept i. c sysst ei-pr design and <br />pfe-rcol at:i1_m tests for; <br />MinnescA,Fk F`ollUti.,:.,n <br />Cont•rr.;l. Agency <br />wit at e Certification 44-7:58 <br />Secondary site of <br />1425 Bay Ridge foci <br />Wayzata MN 755 391 <br />Orono ronin(g <br />We were retained by Mr. VorotiyaW: to provide criteria for the <br />design and installation of an indi.vidk.kal sanitc-kry sewage <br />treatment system to hancilen, the sewage flow teener: -Aged by water—usor <br />aprAiarir.:ti:s within a single, family dwr-11ing. <br />Procedure <br />A total of three (":3 Soi.l percolatic�n tests were performed on <br />November~ C„ 1992 at a repressntative areas to th+_ west of tale <br />dwel 1 i ng „ <br />In addition, thre-e- (3) soil borings were drilled with a i.d. x <br />3 1/4" ,n.d. Hand auger to Check for the position of the ground <br />water table and to identify they underlying sail types. l..ocation <br />c-f i:a?ast;s c'rrld borings ��re shown on the site plan. <br />The percolation tests were performed in ac:• ordanc:e with the <br />provisi cin s of "Minnesota Pollution Control Age3n-::y Rujj-,- 'a c:1F1+::1 <br />Standards Chapter 70BO." They percolation tests Fiol.es were:: <br />drilled to a alternate moUnd depth of 12 inches with a:k L;" i.d. x <br />Via" o, d. at..iger. . Two incof pe a, gravel were pl..�-%ced in .the- <br />bottiom of e_ae_I'r hole_• to 1::rrevent scoring. Water was then added to <br />the test holes and replenished as necessary, frlaintairlip-g a <br />12--inch head of water OvOr the br..tittc-im. After a F:)erie�d of <br />saturation, each hole was refilled to a 12--inch Head of water <br />over the Llr:,ttomr avid the per=olation tests commericed. <br />