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� � Westwood Profess�nn�l Cwvi�es, In� � <br /> 104 M.nty D�ivF,Su��tr� <br /> Huflalq MN 5531; <br /> Nu��cmhcr 3O_ 19�)9 <br /> Phone:612-682-2587 <br /> fax:61?681�2G39 <br /> Toll fie�e� 1-888�682-1587 <br /> Fina�l�wps��we•,n��oocus ir,r, <br /> ��1��31" HOI11eS <br /> 7�10 East Lake Street <br /> ��'ayzata, MN 5�391 <br /> RE: Septic System Site Plan for Lot 7, Block l, ofCrystal Geek, tlennepin County Section 33. <br /> To�vnship 1 18, Ran��e 23, Minncsota. <br /> Dear Steve: <br /> This proposed on-site septic system was designed for a 5 bcdroom home, with an estimated tlow of 7�0 <br /> gallons per day. Due to mottled soils at a depth of 26" in the primary site, the primary system will need <br /> t�� be a mound s��stem ���ith I?'� �t'sand under the rockbecl at the upslope side. The site in ���hich this <br /> s��;ten� is proposed has a a��era;��� e�istin�� �>round slopc of 6",,_ and perc��lation rates ran��in�, frc�m 7.9- <br /> 1 G '��]P1. The rock bed size ��ill hc 10 feet ���ide and 63 fect ion����ith the overall dii���nsions of the <br /> primar�� m��und bein�� 8� feet lon��and 38.7 fe�t wide. The mound s}�stem ���ill require t���o 1�0(� ��allon <br /> septic tanks and a 1300 «allon pump tank. � <br /> :�n alternate sepiic s��stciT� ha, h�en sho���n on the pian t�� ;h���� thn� th�r� is enou�h undi;tiirhed area on <br /> the lot to support anothcr ;eptie s��st�m. "l�his svstem ���ill aiso nce�1 t�� be a mound systein. Mottled <br /> s��ils were found at a depth of?6�� and the average slope of the area is 6%. This system will not need to <br /> be constructed unless the primar` mound fails. <br /> Certain precautions will need to be made to protect the areas in �vhich the above referenced septic <br /> systems are proposed. Both primary and alternate septic areas have been or will be staked off. [t is <br /> critical that tlle soil is not disturbed before, during, and after construction of the system. <br /> These systems should treat the septic effluent effectively if the sy�stems are installed properly and are <br /> maintained properl}'. It is recommenced that the septic tanks be pumped every two years. This will <br /> reduce the chance of solids reachin� the mound system. It is also recommended not to use ezcessive <br /> amounts of chlorine, soaps, and chlorine products which can kill bacteria in the septic tanks. This <br /> bacteria is needed to treat the septic eftluent. <br /> If yuu have any questions in re��ards to this design, I will be happ�� to ans���er them. I can be reached at <br /> (61?) 682-2587. <br /> Sinc�relv, <br /> � � <br /> � <br /> �-�- �;.�/ <br /> ,,` <br /> Rcrnie Miller <br /> Se�tic �ite Designer <br /> Desiynnig the Futu�e Today smre 191' <br />