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CITY of OKONO <br />Tobl Office Box CG*Cryslal Bay. Minm sola r>r>32.'J • Municipal Offices <br />On (he North Shore of Lake Minnetonka <br />November 28^ 1984# ^ <br />M r . J 5; B i g h .1 n <br />l!j45 Long Lake lUvd. <br />Long Lake, MN 55356 <br />Rc: Septic System <br />Dear Mr. Bigham; <br />I have inspected your new septic system during its <br />construction and find it to be accopttible and properly <br />constructed. I wish to elaborate on and finalize a number of <br />items we discussed over the past year regarding t’:e system and <br />your usage of it: <br />.4. •The total area of drainfield that E.J. Peterson Co. was <br />able to ins-all amounts to 525 square feet. Based on the <br />average percolation rate of about 15 minutes per inch, when <br />the system reaches an equilibrium state, it could bo <br />expected to accept in the range of 300-400 gallons of <br />effluent per day. Using the standard design rate of 150 <br />gallons per day per bedroom, (2 people per bedroom) this <br />should liandle the flow from a 2-3 bedroom home or 4-6 <br />I>eoplc. <br />2. It ap{)ears that no additional space is available in <br />w)»i cl) to locate a future drainfield. The alternative if the <br />new system ever fails is holding tanks. <br />3. Based on the above, I would reconmend to you, and to the <br />City Council if application was made, that a 4th bedroom not <br />be constructed, since it would add the potential capacity to <br />overload the drainfield system. <br />4. I expect you will have no trouble with tliis system under <br />normal usage. Do remember that because the tanks are <br />plastic, the manufacturer recommends they be refilled <br />immediately after pumpout to maintain their stability. They <br />.should be pumf)od out every 2-3 years to ensure no solids <br />ent«T the drainfield. <br />•ti II HIM. /iiNiM. IM7UJ # <br />XSM NSIM. <br />Xll'IIMSIH XilllN A I IN I I •) 7 Hn l-l XI II 17 1 71,%', <br />i <br />f <br />mjI. V,