septic designs for 2 lots in East Willow Woods

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r } i ` , • Y' r � . �—� �.�� ` �� . 951 KATY�lD LANE ST. MICHA�L, MN 55376 497-35�u . Steven 3. Svhirme�:s .. October 3 , i989 Jn�� ✓a�vp.-r',vE Cliff Otten Lot � , T31ock 3 , Existing Barn East Willow Woods � R1�1(rERswaop Orono , I.enn. Co . , NN This system is Designed for a Type 1 , four bedroom horne and in accordance with the Minnesota Pollution Control Agency Chapter 7,080 ana iocal ordinances . The soils on this site are typical of SCS soils mapped - HcB2 - i-Iayden clay loam. A seasonally hign water table was located at lb" , 22" , 24" & 26" , (mottled soil ) . Due to the seasor�aliy high water table , � a pressurized mound system will need to be installed. The bottom ot the rock bed must be located at least 3 ' above the seasonaily high water tabie . The soils at a depth of 12" have a percolation rate averaging 9 . 7 min/inch and are adequate for treating se�tic effluent. A pumping chamber will need to be installed to Iift tn� effluent to the treatment area. The manifold and suppiy l,ine pipe must have back drainage to the �umping chamber. The distribution �ipes shall have their er�ds cap��ed. Be sure the rock ar.c. sand fiil materi.=,1 are clean . The sod layer beiow the entire mounded area must be turned over, just bre.,k up the sod , be sure not to over work. The power supply and switches must be located outside tr.e manhole and pumping chamber in a weathe� proof er,closure . A warn�nr device must be installed with a light and sound device, t�is is i:� case o� a �u,�p fa�lure . (Mercury floats are a goad method) . Al1 neighboring wells are ic�ated more than 100 ' away from tne proposed treatment area. Keep all heavy equipment off of the proposed treatmerit area before and after construction as much as: possibie. ihe treatme;�t area shouid be marked off before construction. � COtiT ' D Soil and �'ercolation 7'eat:�. Septic System Desigre