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20 <br /> The Board of Commissioners directed staff to develop a process by which variances could be <br /> considered in a more expedient and inexpensive manner,and suggested that a window of time be <br /> established within which multiple variances could be considered with elimination or reduction of <br /> fees. The Planning Staff has talked with a number of property owners around Lake Orange and <br /> explained that option. Only one variance request has been receive <br /> the owner is ready to build that the septic �since it is generally not until <br /> has also been contacted by several potential system <br /> expressing concern with purchasing.sj g Planning arty Stair <br /> with restrictions which could prohibit development of the property,and uncertainly property <br /> or not a variance would be approved. y as to whether <br /> II. INFORMATION REGARDING SEP'T'IC SYSTEM DESIGN ANT)LOCATION <br /> A. SQUARE FOOTAGE REQUIRED FOR SEPTIC SYSTEMS <br /> According to Environmental Health,about 130 linear feet of'drainfield line is needed per <br /> bedroom. Trenches must have a separation of at least 10 feet. Under normal <br /> circumstances, this translates to about 2,000 square feet of area per bedroom for the <br /> septic system,and an additional 2,000 square feet of repair area. Environmental Health <br /> has estimated that an additional 20% of area is generally sufficient to accommodate site <br /> constraints. Normal circumstances would include suitable soils, gentle topography, and <br /> limited presence of trees or other physical constraints. <br /> The Rules of Sewage Disposal for Orange County require that septic <br /> for at least three bedrooms. Under this provision, a two-bedroom house would still <br /> required to have a septic system sized for a three bedroom house. <br /> Using the rule of thumb of 2,000 square feet per bedroom for the septic system, 2,000 <br /> square feet for repair area,and an additional 20%to accommodate site constraints,septic <br /> systems require the following land area: <br /> Number of Capacity Minimum Area <br /> Required for Septic System <br /> ' Bedrooms Required <br /> (gallons - and Repair Area <br /> a <br /> per day) Without Site With Site <br /> Constraints Constraints <br /> square feet acres square lign <br /> F feet <br /> IMAM 360 12,000 .26 14,400 Mil <br /> 1=1 360 12,000 .26 14,400 Illm•LLII <br /> 480 16,000 Mall 19,200 <br /> 5____ 600 20,000 .46 24,000 litill <br /> Lots approved by Environmental Health during the subdivision approval process generally <br /> have adequate soil to accommodate a four-bedroom house. <br />