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SITE EVALUATION REPORT FOR WILLOW PROPERTIES D ��+ �Q ( Gty.RY PETERSON ) �!f^I ,n ORO1V'C, NIIdRESOTA MAy . , 1 .3 ) , . C1TY �..�- . 5-30-83 _. . �. On P.ay 4-30, 1963 six percolation holes were tested c,n each of 10 lots and 3 soil borings taken on each lot as well in accordance with the provisions of Individual Sewage Sys- te:n Treatment� Standards (WPC-40) adopted in 19?8 by the N:inn- esotd Fallution Control tigency. In addition, other soil bor- ings were taken in lower areas to determine the possibility of obtaining more than 10 Iots but water tables were found to be verg high and the soils were fcund to be very slotirly �ermeable. �ccarding to the soils radps and the information we found in the field, tne higher areas had very good so�ls for drainfields while the lower areas and swales had extremely poor soils �or drainfields . Thus, we tended to stick to the ��i.gher �reas while still leaving room for ample building sites , uowever, ance houses are proposed to ��e constructFd it :riighL be desired to shii t some of the drainfiel3 are�.s . Then r �•a �esting woulu be reo,u?red and i� �:oul� �.e �,dv�se- �:.ble �o 'r,�eN. �s hio�� u; o:: t}_e �_nc�s �s w;�s prEvious i�* tas- ted. E-�c�: S�Le tea�eu :ti,�ulo. be :'.CCEi..��C.le �or eitY�ar � st�:.ri- dara o-r s1�:allow �rer�ch drG.infield system and is noted on the attached dra�ring. It also might be necessary to use inter- ceptor drains to divert runo�'f k�ater but this would be rrien-� tiened in the systern design for the individual hou�Es once the� are rE�dy for construction. If ar.� additional ir�formy- tion is needed, please contact me . Sincerely, PERCOR, INC. �,��.�''.i�`" .- Mark S. Gronberg, .E.