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SITE EVALUATION REPORT <br />FOR WILLOW PROPERTIES <br />( GARY PETERSON ) <br />ORONC, MINNESOTA <br />5-30-83 <br />On May 4“30, 1963 six percolation holes were tested on <br />each of 10 lots and 3 soil borings taken on each lot as well <br />in accordance with the provisions of Individual Sewage Sys- <br />ten Treatment Standards(V/PC-40) adopted in 1978 by the Minn­ <br />esota Pollution Control Agency. In addition, other soil bor­ <br />ings were taken in lower areas to determine the possibility <br />of obtaining more than 10 lots but water tables were found <br />to be very high and the soils were found to be very slov;ly <br />permeable. <br />According to the soils maps and the information we <br />found in the field, the higher areas had very good soils for <br />drainfields while the lower areas and swales had extremely <br />poor soils for drainfields. Thus, we tended to stick to the <br />higher areas while still leaving room for ample building <br />sites. However, once houses are proposed to be constructed <br />it .might; be desired to shift some of the drainfield areas. <br />The.n r v; testing would be required and it would be advise- <br />able to keep as high up on the knobs as was previously tes­ <br />ted. <br />SiCh site tested would be acceptable for either a stan­ <br />dard or shallow trench drainfield system and is noted on the <br />attached drawing. It also might be necessary to use inter­ <br />ceptor drains to divert runoff water but this would be men-' <br />tioned in the system design for the individual houses once <br />they are ready for construction. If any additional informa­ <br />tion is needed, please contact mo. <br />Sincerely, <br />PERCOR, INC. <br />^Mark S. Gronberg, tTe.