Agenda - Council - 10/14/1997 - Laserfiche WebLink

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§ 8.30 Page 250 b) In every case, sufMcient area shall be provided for at least two bedrooms in dwe]Ungs. e) For systems other than household systems, the :~equJred treatment area shall be based upon gallons of waste per day. The required treatrnent area may be reduced, for trenches on]y, by the following percentages: 20% for 12 inches of filter materials below the 'distribution pipe; 34% for 15 Luches; and 40% for 24 inches. The filter material sh~]l completely encase the dispose] pipes to a depth of at least £ inches. d) Soil is unsuitable for standard system if percolation rate is ]ess than 0.1 rn~nute per inch. e) Specie] requirenn ~nts for treatment units for problem soils with this percolation range. For soils having more than 50% of very fine sand by weight, plus rune sand having a particle size range of 0.08 m~qlimeters (sieve size £70) to 0.9~$ rn~lHrneters (sieve size 60), the required soil treatment area is 1.67 square feet per gallon of sewage flow. per day. b. Locador~ 1. On slopes in excess of 12%, the soil profile shall be care£ully evaluated in the location of the proposed soil treatment area and downs]ope to 'identify the presence of layers with ~]{fferent permeabilities that may cause sidehil] seepage. In no case sh~11 a trench be located within 15 feet of where such a layer surfaces on the downslope. 2. Bed constrnct~on shall be linfited .to areas having natural slopes of less than 6%. 3. Any soil treatment ar. aa shall be set back the following distances from the features ~iven below. Di~ce in Feet Water supply well ]ess than 50 feet deep and not 100' encountering at least 10 feet of impervious mater~al Any other w~ter supply'wEll or buried water' 50 suction pipe .Bu-~ied pipe .distributing water und~'~oressure . 10 Building .... 20 Property lines 10 I I I I I I I I I I I I I I I I *Required for new developments and, where applicable, for I existing developments. Printed 12/28/90