Laserfiche WebLink
System Design <br />for Thomas R. Smieja <br />on Lots 1 and 2, Block 2, Swan Lake Addition <br />Orono, Minnesota <br />4-28-88 <br />This lot was originally tested in June of 1980 and because of evidence of <br />a high water table the highest part of the lot in the southwest corner was teLt- <br />ed. With mottled soil found at the 4 foot level then in soil boring # 2, the <br />site was just at the limit for a shallow trench vs. a mound system. On 4-28-88 <br />a new soil boring was taken near soil boring No. 2 with mottled soil found in <br />much the same manner at 3.8 feet. Another soil boring was taken downhill to the <br />north where mottled soil was found at 3.0 feet with a nice 1.5 foot layer of <br />black loam at the surface. <br />Thus, because the origi,i6_1y site would involve cutting down the trees, <br />installing an interceptor drain as originally recommended. be right at the <br />margin for trenches, and be almost as costly as a me;lnd system, it is recommend- <br />ed that a mound be installed in the open area to the north of the woods allowing <br />the wooded area to be used as an alternate site. <br />Design information follows for the system. In addition, two septic tanks of <br />at least 1000 and 750 gallons are needed along with a third pumping tank of at <br />least 750 gallons. An alarm device should be used to warn of pump failure. All <br />construction and materials must adhere to the provisions of the City of Orono. <br />All grading and construction traffic must he kept off both the primary and al- <br />ternative drainlield areas. <br />If any additional information is needed, please contact me. <br />Sincerely, <br />PERCOR, INC. <br />Mark S. Gronberg <br />