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4 rt <br />FOR R. ;BAR", CONSTRUCTION <br />TRACT E. R.L.S. NO. 1098 <br />12-16-79 <br />On December 15, 1979 six percolation holes were tested and 3 <br />soil borings taken, The percolation holes were dug to a 48 inch <br />depth at 6 inches in diameter. The soil borings were dug 6 inches <br />in diameter to the 4 foot depth and 3 inches in diameter to the 7 <br />foot depth. <br />The average percclation rate for the 4 holes in the primary <br />site was 32.1 minutes per inch. This rate, along with the lack of <br />a high water table, should enable a standard drainfield system to <br />be used. However, thA ea for the primary drainfield is located <br />on a terrace between some steep slopes, and some of the drainfield <br />area might be rather steep itself. Thus, the trenches should be <br />constructed deep to help avoid sidehill seepage. For the proposed <br />4 bedroom house 1200 sq. ft. of soil absorption area is needed. <br />This would amount to 4 trenches of 100 feet in length and 3 feet <br />in width. These trenches would be spaced a minimum of 7.5 feet <br />center to center, <br />Two LOGO gallon septic tanks should be used with the proposed <br />house, All construction and materials should adhere to the provi- <br />sions of the Orono on -sits sewage t-3atment manual. <br />If any additional information is needed, please contact me. <br />Sincerely, <br />P%RCO�R,/INC. ` <br />DlARK S. GRONB:M8 P.:•. <br />0 <br />