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<br />R <br /> <br />TABLE IV <br />d S "I T t <br /> <br />t <br /> <br />eqUlre 01 rea men <br />Percolation Rate Area in Sq Feet Area per Bedroom Sq <br />(Minutes per Inch) (Per Gallon of Waste Feet <br /> Per day) <br />Faster than 0.1 ** - - <br />0.1 to 5*** 0.83 125 <br />6 to 15 1.27 190 <br />16 to 30 1.67 250 <br />31 to 45 2.00 300 <br />46 to 60 2.20 330 <br />Slower than 60**** - - <br />** Soil is unsuitable *** Consider **** Soil is unsuitable <br />for standard system if alternative sewage for standard system if <br />percolation rate is treatment systems for percolation rate is <br />less than 0.1 minutes soils with this slower than 60 <br />per inch. percolation rate minutes per inch. <br /> range. <br /> <br />b. Location <br /> <br />1. On slopes in excess of 12%, the soil profile <br />shall be carefully evaluated in the location of <br />the proposed soil treatment system and <br />down slope to identify the presence of layers <br />with different permeabilities that may cause <br />side hill seepage. In no case shall a trench <br />be located within 15 feet of such a layer <br />surfacing on the down slope. <br /> <br />2. Bed construction shall be limited to areas <br />having natural slopes of less than 6%. <br /> <br />30 <br />