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Septic System Design Additional Information Property Address: 2465 French Lake Rd Orono, MN 55391 Description of Waste Water Treatment System DESIGN_INLCUDES: Pump schematics and surve This site is an existing lot. There are 2 existing 1000 -gallon tanks that are compliant and can be re -used in the installation of the new septic system. From the outlet of the second existing septic tank, effluent will gravity flow to a proposed 1000 -gallon Brown Precast pump tank. (Model#1 000 -PT) From the pump tank effluent will be pumped by a Gould PE51 effluent pump 110 feet to the northeast. The pump will dose the trench system 4 times per day with a 150 gallon dose volume. The proposed trench system will have 1 end fed distribution boxes and 3 center fed distribution boxes. Each distribution box will have 1 or 2 trench installed from southwest to northeast. Each set of trenches will be installed 6-9 ft on center to the west. There will be a total of 7 distribution boxes installed west of the home. The 7 distribution boxes will feed a total of 7-36.6 ft long trenches. Trenches are proposed to have 6 inches of rock below the drainfield pipe. Ez flow trenches from infiltrator can be used in place of aggregate. The trench system is proposed in an area that has many trees. The trenches should fit between all of the large trees. There may be some small trees that need to be dug out. Drainfield and tanks are proposed more than 20 feet from all property lines. This new on-site sewage treatment system is designed for a 4 -bedroom home, Type 1 system in accordance with the MPCA Chapter 7080 and local ordinances. The soils on this site are sands. The periodically saturated soils were located after going to a depth of 60 inches. This will provide 36 inches of separation with the deepest trench being installed 24 inches deep or shallower. All tank manholes should be brought to grade upon completion of tank installation, inspection ports for the distribution boxes should also be at grade upon completion. Keep all vehicles and construction equipment off septic area. Rutting and/or compacting the soil will change the percolation rates and may lead to system failure. Homeowner to verify all property lines and all relevant setbacks. Homebuilder and septic installation company must verify all wetland setbacks, Elevations are referenced from the survey provided by DeMarc Land Surveying Ende Septic Service, LLC, 24910 Territorial Road I ph.763-428-4489 orinfo()endeseptic.com 1