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Septic System Design <br /> Additional Information <br /> Property <br /> Owner: 9339 Kahler Ave NE Otsego, MN <br /> Description of Waste Water Treatment System <br /> This site is a newly formed lot. With a house proposed in the middle of the lot. The home to be <br /> build will consist of 4 bedrooms with a walkout basement. The proposed septic sites are <br /> northeast of the proposed home. 2-1250 gallon septic tanks will be installed east of the walkout <br /> basement. A 1250 gallon pump tank will also be installed to lift effluent to the proposed system. <br /> The mottling in the soil was found at 18 inches. Therefore an 18 inch sand lift mound with a <br /> 10x50 ft rockbed will be installed on the northeastern hill side. East of the group of trees that are <br /> north of proposed home. The alternate site is located inside of the northern wooded section of <br /> the lot. A flow measurement device must be installed on the pump tank. If a garbage disposal is <br /> installed in the home an effluent filter must also be installed on the outlet of the 2nd septic tank. <br /> This new on-site sewage treatment system is designed for a 4 bedroom home, Type 1 system in <br /> accordance with the MPCA Chapter 7080 and local ordinances. <br /> The soils on this site are sandy loam. The periodically saturated soils were located after going to <br /> a depth of 18 inches_ This will lead 12 inches of usable soil underneath the mound with a 2 foot <br /> sand lift. Therefore providing a 36 inch separation for the treatment of effluent above the <br /> periodically saturated soils. <br /> 2-1250 gallon tank will need to be installed or reused along with a 1250 gallon pump tank to lift <br /> the sewage to the treatment area. The power supply and switches must be located outside the <br /> manhole and pumping chamber in a weather proof enclosure. A warning device must also be <br /> installed with audio/visual alerts. The supply line must have drain back to the pumping chamber. <br /> From the pump tank sewage will be pumped approximately 75 feet to the mound. There will be <br /> 3-2" pipes each 3 feet apart inside the 10' by 50' rockbed. The mound will have a total footprint <br /> of 55' by 88' with 12 percent slope underneath it. <br /> All tank manholes should be brought to grade upon completion of tank installation, inspection <br /> ports for the distribution boxes should also be at grade upon completion. <br /> Keep all vehicles and construction equipment off septic area. Rutting and/or compacting the <br /> soil will change the percolation rates and may lead to system failure. <br /> Homeowner to verify all property lines. <br /> Elevations are referenced to Bench Mark on tar of the road. <br /> Ende Septic Service, LLC,24910 Territorial Road l ph.763-428-4489 orinfo(cDendesentic.com 1 <br />