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Article 4: Overlay Zoning District® <br /> Section 4.2: Watershed Protection <br /> UPPERTABLES 4.2.5.2 &4.2.5.3: SLIDING SCALE FOR RESIDENTIAL IMPERVIOUS SURFACE RATIOS— <br /> UNIV,CANELITTLE,AND 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 /> 3.2 1 9.6 1 13,382 0.2 15.6 1,359 <br /> 4.2.6 Impervious Surface, Detention 120-nd, 101 and Lot Size Requirements for Non-Residential <br /> 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: •_- • -« - - ON-RESIDENTIAL <br /> DISTRICT IMPERVIOUS SURFACE REQUIREMENTS (NON-RESIDEN-nAL) <br /> UNIV-CA 5-acre minimum lotsize,with potential of up to five lots as small as two acres for lots of record September 1, <br /> CANE-CA 2015(University Lake)or October 19, 1999(Cane Creek); AND <br /> 6% impervious surface limit. [1],[2] <br /> U-ENO-CA 2-acre m inim um lotsize AND <br /> 6% impervious surface limit.[1],[2] <br /> 5-acre minimum lotsize with potential of up to five lots as small as two acres for lots of record September 1, <br /> 2015(University Lake)or October 19, 1999(Cane Creek); AND <br /> UNIV-PW 50%ISR for all fire stations and solid waste collection centers;AND <br /> CANE-PW 12%ISR for all other non-residential uses;AND <br /> on-site infiltration of the first inch of stormwater runoff;AND <br /> a limitof 1.0%of the watershed for non-residential use(139 acres in CANE-PW). [1], [2] <br /> 2-acre minimum lotsize AND <br /> 50%ISR for all fire stations and solid waste collection centers;AND <br /> LITTLE-PW 12%ISR for all other non-residential uses; AND <br /> on-site infiltration ofthe first inch of stormwater runoff;AND <br /> a limitof 1.0%of the watershed fornon-residential use(406 acres in LITTLE-PW). [1], [2] <br /> 70% <br /> ISR in Economic Development,Commercial and/or Commercial-Industrial Nodes as designated in the Land Use <br /> Elementof the Comprehensive Plan(high-densityoption)with Stormwater Management Plans(SMPs)and/or <br /> SstormwaterCsontrolMA;-easures(SCMs)ifISR exceeds 12%; AND <br /> 50%ISR for all fire stations and solid waste collection centers outside of Commercial and/or Com mercial- <br /> U-ENO-PW Industrial Nodes as designated in the Land Use Elementof the Comprehensive Plan,with Stormwater <br /> BACK-PW Management Plans(SMPs)and/or Stormwater Control Measures SCMs if ISR exceeds 12%; AND <br /> 12%ISR for all other non-residential uses outside of Commercial and/orCommercial-Industrial Nodes as <br /> designated in the Land Use Elementofthe Comprehensive Plan; AND <br /> on-site infiltration ofthe first inch of stormwater runoff;AND <br /> A limitof 1,151 acres of non-residential use throughout U-ENO-PW(5.0%)and 163 acres <br /> throughout BACK-PW(1%). [1], [2] <br /> 50%ISR for all fire stations and solid waste collection centers;-AND <br /> HYCO-PW 12%ISR for all other non-residential uses;AND <br /> FLAT-PW on-site infiltration ofthe first inch of storm water ru noff;AN D <br /> limitof 1%of the watershed for non-residential use(37 acres in HYCO-PW, 66 acres in FLAT-PW). [1], [2] <br /> 101 Removed reference to"Detention Ponds"as that languageis irrelevantand misleadingto readers. <br /> 101 Removed reference to"Detention Ponds"as that languageis irrelevantand misleadingto readers. <br /> 103 Removed reference to"Detention Ponds"as that languageis irrelevantand misleadingto readers. <br /> Orange County, North Carolina— Unified Development Ordinance Page 4-9 <br />