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cTeNneRnc_ rRnWTH MANAGEMENT SYSTEM 18 <br />R-1 & EDD ZONING IN WATER/SEWER BOUNDARY URBANIZING TAN <br /> SUBDIVISION MAJOR SUP I SUP II PD <br /> Number of Lots 6-19 20-40 41-79 80+ <br />BALANCE OF ORANGE COUNTY PLANNING ]URISDICTION IN WATER/SEWER BOUNDARY RURAL GREEN <br /> SUBDIVISION MAJOR SUP PD <br /> Number of Lots 6-19 20-40 41+ <br />4. Concentrated stormwater, conveyed by <br />ditches, channels, pipes, swales or <br />other conveyance systems must be <br />dispersed and diffuse flow <br />reestablished prior to discharge into a R R R R <br />stream buffer; I I II II <br />5. Nitrogen load contribution must be R R R R <br />held to 3.6 Ibs per acre per year. I I II II <br />F. Drainage <br />1. All drainage structures will be installed <br />and maintained according to the <br />approved stormwater Management R R R R <br />Plan. I I II II <br />2. Subdivisions that include <br />retention/detention ponds shall comply <br />with the requirements in Section 6.23.4, <br />Operation and Maintenance of R R R R <br />Structural Best Management Practices. I I II II <br />G. Grading and Erosion Control <br />1. Plans for grading and erosion control <br />comply with standards contained in the <br />Orange County Erosion and Sediment R R R R <br />Control Ordinance and Manual; I I II II <br />2. Construction is phased to the extent <br />practical to minimize disturbance and <br />sedimentation; <br />3. Sediment control measures will be <br />properly installed to filter sediment <br />from runoff during construction and <br />maintained until grading is complete <br />and a permanent vegetative cover has <br />been established and all slopes . <br />stabilized; and <br />R =Recommended/ <br />Required GS =Goal Supporting E =Existing Per Non-SUP Subdivision Regulations <br />Level I Analysis C =Comment N/A =Not Applicable <br />Level II Anal sis <br />