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R & D Soil Consultants <br />Randy and Donald A. Schneewind <br />11585 110111 SI. Cologne, MN 55322 <br />Septic System Perk, Design b Installation <br />Phone: 466-2667 <br />Mi nnrscA. a Pol 1 ut i c'n <br />C� �ntr-- -1 Agency <br />State Certification #738 <br />September 19, 1990 <br />Jim Egerdal <br />1620 Silver Bell Road <br />Rochester, MI 4e3o6 <br />PE: Soil percolation tests and <br />Septic system d -.-sign for ; 2''1(;C'Alin Drives <br />L-Drng Lake, MN 55.3.756 <br />We were retained by Mr. Eiger -dal to condu-_t tests f) <br />this property, in orrIer t-, provide critcri a for the design and <br />installation -nf an iridi �i-lual sanitary =_•_'..'age f reatrrient SiySterrr to <br />Handle the sewage fl -+..r g -aerated by water -use appliances within a <br />single family dwelling. <br />Pr oc edur e <br />A total of four (14) Foil liercolatic_n to=_t., wer•�- p•_rfc_rrrred on <br />September 17, 199x;' ai a r -presentative at -E -a to the south amid west <br />of the existing dwelling. <br />In addition, four 4.4" soil borings were di ill,;�d with a 211 i.d. x <br />3 1/4" o.d. Hand aug: r to '_hec►, for the h_'siti _'n of the <br />water table and to illerrti iv the Underlying sceil types. Cocatioil <br />of tests grid borings are ;flown on the site plan. <br />The percolation testes were= performed in accr-ordance. with the <br />provisions of "Minne�vta I-ollution Control Agr-rr•_y F'ules and <br />St and.ur us Cha};.. � % 7'.j}?�;'. " The per r nl at i oto test-, h. <br />_1eS were <br />drilled to a conventional depth of*4 in..hr': ;.h a 5" i.d. x 6" <br />'-'.d. auger. Two inches uea gravel wer•:• placed in the bottom <br />of each hole to prevs-nt s' or i ng. Water- was then added to thr <br />test holes and r. pierrished as ne•.essary, maintaining a 12 -inch <br />head of water over the bo1-tom. After a period of saturati':•n, <br />each hole was refill • d t- a 6 -inch head f wat. r c.var the b� Ott _,w. <br />and thA per•=c•lati n i ests '__rimren'.ed. <br />