Problem 2: You are designing an onsite system for a residential 4 bedroom home. A test pit showed a soil profile of primarily sandy loam with no limiting layers or evidence of saturation. A percolation test estimated soil percolation rate of 8 minutes per inch. Please use DEQ Circular 4 as you primary reference to address the following: a) Determine the required septic tank volume b) Determine the required infiltration trench area c) Please illustrate an pressure dosed infiltration bed design that includes the number of trenches, the trench width used, trench spacing and overall dimensions. To meet non- degradation requirements the infiltration trenches must be at least 75' long