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DIRECTOR <br />Craig ~3. Lue~rran <br /> <br />~tLOIN6 <br />INSPEC11ON <br />(SO3)~-S147 <br /> <br />PL~qNING & <br />ENFORCEMENT <br />(50~) 588-S0~ <br /> <br />BOARD OF <br />COMMISSIONERS <br />Raetall Fnnke <br />I~ti Mille <br />Mike R~an <br /> <br />COUNIY <br />~DMINISTRATOR <br />8ob Cannon <br /> <br />Marion County <br /> <br /> OREGON <br />COMMUNITY DEVELOPMENT <br />DEPARTMENT <br /> <br />To: Tim James <br /> 3335 Childs Rd. <br /> Lake Oswego, Or. 97034 <br /> <br />Re: <br /> <br />Dec. 2, 1999 <br /> <br />Septic system alteration. 227885 Airport Rd. NE, Aurora Site #99-06082 <br /> <br />Dear Mr. James, <br /> <br />I received you~fax of the proposed drainfleld layout modification due to the relocation <br />of the taxiway. <br /> <br />The sketch appears to replace the drairdleld area that is removed by the taxiway <br />relocation however it doesn't appear that the sand filter replacement area has the 10' <br />perimeter buffer area required. <br /> <br />From reviewing the file it appears that the septic system was originally sized for 1075 <br />gallons per day sewage flow. This equated to the drainfield being sized at 900 linear <br />feet (125' per 150 gallons of flow). The sand filter replacement area is sized at 50' per <br />150 gallons which calculated to 360'. The new easement area needs to contain the <br />drainfield and replacement areas with a 10' perimeter "buffer fringe" for maintenance <br />and protection. <br /> <br />In addition, you refer to amending the lease for the drainfield which is not the same <br />thing as a easement. We can issue this permit when we receive the new easement <br />modification and are recorded. Please let us review the document prior to recording <br />them in to assure they are in the format we need. I have attached a easement form <br />the D.E.Q has developed for this purpose. <br /> <br />The issue ofa drainfield lease came up recently on another airport property and the <br />DEQ required this to be a permanent easement rather than a lease. <br /> <br />Give me ac_all if you have any questions or would like to discuss this matter. <br /> <br />ZanV~ Ewing R.S. ?' \ <br />g~red Sanitari~''''~ <br /> <br />Marion County Asmex · 3150 Lancaster Dr. N. E., Suite C · Salem, Oregon 97305-1398 · MCBldglnqX~Open. Org <br /> <br /> <br />