Laserfiche WebLink
Location <br />of waste per day. The required treatment area may <br />be reduced, for trenches only, by the following <br />percentages: Twenty per cent (20%) for twelve (12) <br />inches of filter materials below the distribution <br />pipe; thirty -four per cent (34X) for eighteen (18) <br />inches; and forty per cent (402) for twenty -four (24) <br />inches. The filter material shall completely encase <br />the disposal pipes to a depth of at least two (2) <br />inches. <br />d. Soil is unsuitable for standard system if percolation <br />rate is less than one -half (1/2) minute per inch. <br />See Section 150.01.4G. <br />e. Consider sewage treatment units for problem soils <br />with this percolation range. See Section 150.01.4G. <br />1. On slopes in excess of twelve per cent (122), the <br />soil profile shall be carefully evaluated in the location of <br />the proposed soil treatment area and downslope to identify the <br />presence of layers that may cause sidehill seepage. In no <br />case shall a trench be located within fifteen (15) feet of <br />such a layer surfacing on the downslope. <br />2. Bed construction shall be limited to areas having <br />natural slopes of less than six per cent (6%). <br />3. Any soil treatment area other than seepage pits shall <br />be set back the following distances from the features given <br />below. <br />Feature Setback Distance In Feet <br />Water supply well less than <br />50 feet deep and not <br />encountering at least 10 <br />feet of impervious material <br />100* <br />Any other water supply well or 50 <br />buried water suction pipe <br />Buried pipe distributing water 10 <br />under pressure <br />Building 20 <br />Property lines 10 <br />*Required for new developments and, where practicable, for <br />existing developments. <br />4. Any soil treatment area other than seepage pits shall <br />