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Article 4: Overlay Zoning Districts <br /> Section 4.2: Watershed Protection <br /> <br /> <br />Orange County, North Carolina – Unified Development Ordinance Page 4-8 <br /> <br />TABLES 4.2.5.2 & 4.2.5.3: SLIDING SCALE FOR RESIDENTIAL IMPERVIOUS SURFACE RATIOS – <br />UNIV, CANE, LITTLE, AND UPPER ENO <br />LOT SIZE (ACRES) ISR SQUARE FEET LOT SIZE (ACRES) ISR SQUARE FEET <br />Cells in black DO NOT apply to the Upper Eno <br />3.5 9.0 13,721 0.5 15.0 3,267 <br />3.4 9.2 13,625 0.4 15.2 2,648 <br />3.3 9.4 13,512 0.3 15.4 2,012 <br />3.2 9.6 13,382 0.2 15.6 1,359 <br /> <br />4.2.6 Impervious Surface, Detention Pond, and Lot Size Requirements for Non-Residential Uses <br />Unless otherwise noted in the Table below, minimum lot sizes shall be in conformance with the <br />underlying zoning district. <br />TABLE 4.2.6: IMPERVIOUS SURFACE/DETENTION POND REQUIREMENTS <br />DISTRICT IMPERVIOUS SURFACE/DETENTION POND REQUIREMENTS (NON-RESIDENTIAL) <br />UNIV-CA <br />UNIV-PW4 Same as Residential (See Table in subsection 4.2.5) <br />UNIV-CA <br />CANE-CA <br />5-acre minimum lot size, with potential of up to five lots as small as two acres for lots of record October 19, 1999; <br />AND <br />6% impervious surface limit. <br />[1], [2] BMPs cannot be used to satisfy watershed impervious surface requirements. <br />U-ENO-CA <br />2-acre minimum lot size AND <br />6% impervious surface limit. [1], [2] <br /> <br />UNIV-PW <br />CANE-PW <br />5-acre minimum lot size with potential of up to five lots as small as two acres for lots of record October 19, 1999 <br />(Amended 10-19-99); AND <br />50% ISR for all fire stations and solid waste collection centers; AND <br />12% ISR for all other non-residential uses; AND <br />on-site infiltration of the first inch of stormwater runoff; AND <br />a limit of 1.0% of the watershed for non-residential use (139 acres in CANE-PW). <br />[1], [2[ BMPs cannot be used to satisfy watershed impervious surface requirements. <br /> <br />LITTLE-PW <br />2-acre minimum lot size AND <br />50% ISR for all fire stations and solid waste collection centers; AND <br />12% ISR for all other non-residential uses; AND <br />on-site infiltration of the first inch of stormwater runoff; AND <br />a limit of 1.0% of the watershed for non-residential use (406 acres in LITTLE-PW). <br />[1], [2] BMPs cannot be used to satisfy watershed impervious surface requirements. <br /> <br /> <br />4 Staff would like to discuss modifying these provisions.  We believe it would be more appropriate to make the  <br />regulations more consistent with other, similar overlay district as denoted herein.  <br />31