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h r , <br />CANE CREEK WATERSHED: <br />d) Use and Storage of Hazardous Materials <br />An inventory of all hazardous materials used and stored in the watershed must be maintained. <br />A containment plan in the event of spill of failure, and appropriate safeguards against <br />contamination are required. <br />M. ISSUES <br />A. The WS H classification proposed by the state matches that requested by Orange County. <br />Alamance County, which contains only a small portion of the watershed, requested a <br />WS III classification. <br />B. The critical area proposed in the Rules is larger than what is now defined as the Water <br />Quality Critical Area (WQCA). The Land Use Plan Map would have to be revised to <br />expand the area designated as WQCA. Also, Land Use Element of the Comprehensive <br />Plan and in the Zoning Ordinance would have to be amended to redefine the WQCA. <br />C. The minimum lot size would increase from .92 acres to 2.0 acres in the watershed, and <br />from 1.84 acres to 2.0 acres in the WQCA. A new or revised zoning district and /or <br />zoning overlay would have to be created to specify the new standards. <br />D. Impervious surfaces would include gravel roads, drives, etc. Current regulations do not <br />consider such areas as impervious surfaces. This change could create a problem during <br />in developing existing lots, particularly if they are non - conforming in size, and /or are <br />shaped such that a long driveway is required. <br />E. The minimum stream buffer would be increased from 50' to 100% This could have a <br />substantial impact on existing lots that have limited buildable area, particularly those <br />created prior to 1981, which may not meet current minimum lot size requirements. <br />OWASA staff has indicated that the Authority may propose applying 100 -foot stream <br />buffers on intermittent as well as perennial streams. This would require a change in <br />current standards. <br />F. Operation and maintenance of detention ponds or other engineered stormwater controls <br />will require oversight by the County. This will require development and implementation <br />of a monitoring program by the Erosion Control Division and/or County Engineer. <br />G. No area within the watershed is designated for non - residential use in the Land Use <br />Element of the Comprehensive Plan. The proposed regulations pertaining to non- <br />residential watershed coverage and impervious surface would have little impact. <br />H. The state rules call for a 10 -foot vegetative buffer along perennial waters for animal <br />operations. Questions as to the implementation and enforcement of this rule are <br />29 <br />