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71-L-19-1994 04:SR Fpnm '"916LITY CONTPOL IN9P TO 9439411 0.L14 <br /> Ultimately, the biomat formation within the sidewalls of the lcachline trencAes and seepage pits <br /> will determine infiltrative capacity. This biomat formation will develop in almost all conditions, <br /> but is especially prevalent when sewage particles are allowed to enter the drhinfield We <br /> recommend that a filter be place at the outlet of the septic tank to trap solid particles and hinder <br /> excessive biomat buildup at the soil/effluent interface. <br /> There is scientific evidence which suggests that when cohesive soils accepting septic effluent are <br /> allowed to "rest" after extended inflows. original infiltrative capacity may be restored. This <br /> resting period should last for several weeks to months. Therefore.we recommend resting <br /> parameters should be considered in the design of the septic system design. <br /> We appreciate the opportunity to provide this service for you. If there should be any questions, <br /> please contact the undersigned. <br /> Respectfully submitted, <br /> QUALITY CONTROL INSPECTION, INC. <br /> DRAFT <br /> Don Chesney, R.E.A. <br /> vice President <br /> 3 <br />