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Marion County <br /> OREGON <br /> PUBLIC WORKS <br /> October 26, 2021 <br /> (503)588-5036 <br /> Dan Buss <br /> BOARD OF 1914 37th Ave NW, <br /> COMMISSIONERS Salem, OR 97304 <br /> Kevin Cameron <br /> Sam Brentano <br /> Colm Willis RE: Proposed major repair permit no. 555-21-010382 at 34893 North Fork <br /> Road SE, Lyons, OR <br /> DIRECTOR <br /> Brian Nicholas, P.E. <br /> Dear Dan, <br /> ADMINISTRATION <br /> I have evaluated test pits at the above referenced property for the purpose <br /> BUILDING of your major repair application, my findings are below: <br /> INSPECTION <br /> Approved Area & System Type <br /> EMERGENCY Soil test pits and other site features were evaluated during the site visit on <br /> MANAGEMENT - October 20, 2021. Conditions observed during this site evaluation indicate <br /> ENGINEERING that the area around the evaluated test holes is not capable of supporting <br /> a Standard septic system due to the following limitations: <br /> ENVIRONMENTAL <br /> SERVICES Depth to Soil with Rapid or Very Rapid Permeability <br /> OPERATIONS DEQ Rule requirement: Soil with rapid or very rapid permeability <br /> must be 36" below the ground surface. "Soil with rapid or very rapid <br /> PARKS permeability" refers to sandy loam or coarser soil with 35% or more <br /> PLANNING coarse fragments over 2mm; loamy sand or sand; or stones, cobbles, <br /> gravel and rock fragments with too little soil material to fill the void <br /> SURVEY spaces. OAR 340-071-0220(1)(c) <br /> Description: Treatment of sewage occurs in the soil around the <br /> drainfield area. If the sewage enters the groundwater before it has <br /> been adequately treated in the soil, it poses a potential public health <br /> hazard. A layer of rapid permeability was observed around 8 inches <br /> at this site. <br /> Specific Requirements <br /> This property will require EITHER a 600 square foot seepage bed <br /> absorption system OR 150 linear feet of pressurized distribution lines <br /> per this approval. <br /> Specific sizing and site placement details can be found on the attached <br /> 5155 Silverton Road NE•Salem,OR 97305-3802• www.co.marion.or.us/PW <br /> Printed on recycled paper• Reduce-Reuse-Recycle-Recover <br />