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' <br /> ' • Screened Pump Vault — Orenco Systems, Inc. model #PVL157-1819 pump vault in the lift tank <br /> through the maintenance hole (see figure in Appendix D). Orenco Systems, Inc. modified well pump <br /> ' model # P200511, 115V, '/z hp, (or equivalent) in the flow inducer of the pump vault. Connect a <br /> schedule 40 PVC discharge pipe to pump and extend discharge pipe through riser wall. Install a <br /> camlock on the discharge pipe between pump and the riser for easy disconnect. Drill a 3/16" weep hole <br /> ' at the invert of the 90 degree bend in the discharge pipe to allow drain back. Inst�ll all high-pressure <br /> fittings. <br /> ' • Drain Field—Excavate the drain field bed area as depicted on Figure 2. Depth of;excavation shall be <br /> 98.8 and level. Place 6 inches of clean sewer rock across the bottom of bed area. Place perforated <br /> lateral network over the rock-bed (see design worksheets for size of piping, orifice sizing and spacing. <br /> ' Cover laterals with an additional 2" of clean sewer rock, cover rock with geotextile fabric. Back fill <br /> with sandy loam soil and seed for cover. <br /> ' 7. Limitations - Our investigation, layout, design, and recommendations are based on data submitted. <br /> If 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 knovyledge 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 construction, and other <br /> specifications not depicted in our report are to conform to ISTS regulations. The installer of the system <br /> ' is to be licensed by the Minnesota Pollution Control Agency. <br /> If you have questions, please feel free to call. _ <br /> ' Sincerely, <br /> ' <br /> Peter G. Miller <br /> ' Soil Scientist, Designer I MPCA Certification#2341 <br /> Eco Systems Engineering MPCA Certification#208 <br /> ' <br /> ' <br /> ' <br /> ' <br /> ' <br /> ' <br />