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I Zoning File #1642 May 15, 1991 Page 2 3.The hardship stateirent provided by the applicant indicates that, regarding lot area, he has purchased the only available adjacent vacant land and no other land is available. Septic testing confirms that the only feasible drainfield sites are mostly within the newly purchased property. Regarding lot width, the applicant notes that the lot is long and narrow. The defined front lot line has historically, and will continue to be, along Stubbs Bay Road, where the driveway is located. 4.The 10' side setback variance is requested specifically at the suggestion of staff, to provide more of a buffer between the alternate drainfield site and the proposed house location. While placing the house at the 50' setback would still leave a 25* setback from the alternate site (meeting the minimum 20* septic-to-house setback required by code), the mound site is uphill from the house and has a slope of 10%. Because treated effluent from this mound would generally run underground towards the house, any additional buffer zone between the mound and house will help to reduce the potential for any additional groundwater impact on the basement . Discussion The lot area and width for this property are fixed, and can't be expanded to meet the 300'/5 acre standards of the RR-lA zone. The fact that there is an existing house on the property and that the existing house has extremely substandard setbacks compared to the 5 acre zone standards, may put this application in a better light than if the property was currently vacant. This property was not zoned until 1957, when the "Residual" zoning district was created with no designated lot size or width limitations. Subsequent ordinances required lot sizes of minimum 1 acre and 140* width, until the 1975 rezoning changed this to a 5 acre zone. It should be noted that this property is directly across the street from the RR-IB, 2 acre zone. Septic System Pijcussion Regarding the septic system, the existing house has a 30 year old functional but substandard septic system. Two new drainfield sites have been tested and systems have been designed for each. Both those sites approach the slope limitations for the type of system proposed. I i