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Westwood Profess�onal Services, Inc . <br /> 104 Marty Drive,Suite 3 <br /> Bufialo,MN 55313 <br /> Phone:612-682-2587 <br /> Fax:612 682-2639 <br /> Toll Free:1-B88-682-2587 <br /> April 2 I, �999 Email:wps�westwoodps.com <br /> Steve Bohl <br /> Bohland Development <br /> 420 Upland Lane <br /> Plymouth, MN 55447 <br /> RE: Septic System Si[e Plan for Lot l, Carriage Hill, Oron��, �linnesota. <br /> Dear Steve: <br /> This proposed on-site septic system was designed for a 5 bedroom home, �vith an estimated flow of 750 <br /> gallons per day. The system best suitable for this area will be�18 If_ of 10" Gravelless trench installed <br /> no deeper than 12" below the existiny,ground level. The seasonai hi;h water table was found at a depth <br /> of 4A feet in the Septic area. Two 1300 gallon septic tanks��ill be adequate for a system of this size. <br /> The site in which this system is proposed has an average e�i�ting ground slope of 12%. Percolation <br /> rates for this particular site were found to be between 14-19 �IPI. <br /> An alternate septic system has been designed to sho�v that there is enough undisturbed area on the lot to <br /> support another septic system. This system was also desianed for a 5 bedroom home. The seasonal <br /> water table was atso found at a depth of 48 inches,this site«ould also require 418 ff. of 10"Gravelless <br /> trench. This system will not need to be constructed unless the primary system fails. <br /> Certain precautions will need to be made to protect the are� in w�hich the above referenced septic <br /> systems are proposed. Both primary and alternate septic arzas have been or�vill be staked off. It is <br /> recommended that safety fence be placed around both of the sites for protection during construction of <br /> tl�is project. It is critical tl�at tlie soil is not disturbed before.durina, and after construction of tf�e <br /> system. <br /> These system should treat the septic effluent effectively if the systems are installed properly and are <br /> maintained properly. It is recommenced that the septic tanl:s be pumped once every two years. This <br /> will reduce the chance of solids reaching the system. It is also recommended not to use excessive <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 effluent <br /> Designing the Futu!e Today_since 1912 <br />