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Date: 2/20/96 <br />To: Bob Foster, R.S. <br />From: Richard E. Lyon, R.S. ~--- <br />Re: 4s-lw-2D TL ¢600; Site ~g5-14850 <br /> Columbia Aeronautics Association Clubhouse; <br /> <br />Lyon & Associates <br />Environmental Consu 1 rant s/Des i ~ner s <br /> <br /> FEB 2 <br /> MARION COUNTY <br /> <br />Aurora, Or. <br /> <br /> Hello Bob, thank you for your letter of 1/9/96, enclosed <br />please find the plot plan reflecting the stake out presently ready <br />for your inspection. We used 1075 gpd as the flow and designed two <br />460 LF capping fill drainfield quads as shown (12" max trench depth <br />& 16" capp of silt loam). <br /> <br /> As discussed we will use a 3,000 gal Willamette Graystone two <br />compartment septic tank as shown in the plans. Also to insure <br />maximum unsaturated effluent treatment we will make use of a <br />programmable timer, initially set at 2 min 'on' and 8 hrs 'off', <br />with a 600-700 reserve in the 1,000 dose chamber. An Orenco <br />effluent filter will be used to insure clean pumping liquid. <br />Additionally will use a Hydrotek distributing valve to alternate <br /> <br />flow between the two 460 LF drainfield quads. We will use all <br />Orenco components (541) 459-4449 as specked in the attached <br />equipment list. <br /> The Club has received a verbal approval of the easement <br />enlargement as shown from the state and the recorded document is <br />forthcoming. <br /> <br /> Again, thank you in advance for your careful attention in <br />this matter, Z hope this provides some help. Zf you have questions <br />feel free to call at 265-6826. <br /> <br />Richard E. Lyon R.S. <br />Registered Sanitarian <br />Oregon - Washington <br /> <br />12035 N.E. Beverly Dr. <br />Newport, OR 97365 <br />(503) 265-6826 <br /> <br /> <br />