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seasonal due to the location on an island and qualifies as a Classification II dwelling; Minnesota Rules <br /> Chapter 7080.0125. The estimated daily flow from the residence is 300 gallons per day. <br /> Description of the Treatrnent Process— . <br /> • Primary Treatment - Sewage is gravity discharged from the house to a septic tank. Natural <br /> , biological activities taking place inside of the septic tank will sepazate solids and suspended particles. <br /> Solids are reduced to some extent through this process. <br /> • Final Treatment—Effluent flows to a new 528 square foot drain field. As the effluent trickles down <br /> into the soil biochemical processes remove harmful viruses and bacteria. <br /> Description of Treatment S stein—(See figures, design sheets, and data sheets for additional detail.) <br /> • Septic Tank — (1) 1,500 gallon two compartment fiberglass septic tank. Install septic tank per <br /> manufacturer's recommendations. . <br /> � Septic Tank Risers — 24" diametex heavy corrugated PVC pipe. A watertight seal must be <br /> created between top of tank and the each riser. <br /> • Septic Tank Riser Cover—24" diameter fiberglass cover with gasket. Tank riser covers should <br /> include insulation. Do not bury riser cover. . . <br /> � Drain Field—Excavate the drain field trenches as depicted on Figure 2 when the soil is less than <br /> the plastic lunit to prevent smearing and compacted. Installer is responsible for determining if the soil is <br /> below the plastic limit prior to excavation. Depth of excavation shall be 1.5 feet on the downhill side of <br /> trench, scarified and leveled. Place Quick4 High� Capacity Infiltrator� Cnravelless Chambers in the <br /> �rench bottom connected by graviiy drop boxes. � <br /> • Grading - Back fill with native soil, seed for cover, and mulch for erosion control ASAP after <br /> . installation. Create positive drainage away from the septic tank and drain field, allow for soil settling. <br /> Do not allow channeled runoff over the drain field; create drainage swales along the outer edges of the <br /> drain field to prevent excess runof£on the drain field. <br /> Limitations - Our investigation, layout, design, and recommendations are based on data submitted. If <br /> conditions considerably different from those described in this report are encountered, we must be <br /> notified. If proposed construction is changed, we must be notified to evaluate the effect of the changes <br /> on the wastewater system. Any changes to the design must be approved by the designer and will be <br /> assessed additional design costs. If changes are made to the design without the knowledge and approval <br /> of the designer the design shall be void. All construction is to be in accordance with the ISTS <br /> regulations. Pipe type and size, installation requirements, septic tank constzuction, and other <br /> specifications not depicted in our report are to confonm to ISTS regulations. The installer of the system <br /> is to be licensed by the Minnesota Pollution Control Agency. <br /> I certify that this plan; document or report was prepared by me or under my direct supervision and that T <br /> am a duly licensed Professional Soil Scientist and Designer 1 under the laws of the State of Minnesota. <br /> 2 • . <br /> ,�,r;�-"� .y�...`..4..^., ,"iy^,:.\:,. .� . <br /> ' •• ;-�•-L:'� •f• �'. '1�_:•. f:�:"-� �..b <br /> - • ' f I \, r•, � •�? ..� )� ��i �� .. <br /> •.'?�� .���Ji. <br /> . . =�t—'l:t3' �ti d�` -' r;r��� •�'t"�l:.c..:�F.,7 <br /> � . r: -�'/�:.) '�''�l .t�� ~, � "�• ;';� �,:� `1) <br /> . . .f' . i `�� '� ...:'� t`+�... <br /> ! . . . �'..ti��-r � ' -� <br />