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35 <br />Michael Harvey <br />From: Wesley Poole <br />Sent: Monday, February 10, 2014 6:51 PM <br />To: Michael Harvey; Rich Shaw; Peter Sandbeck; Alan Clapp; Kevin Lindley; Jeff Scouten; <br />Chuck Edwards (cnedwards@dot.state.nc.us); Steve J Kaltenbach; 'Jones, DeAngelo J <br />(djjones1 @ncdot.gov); James Bryan <br />Subject: RE Review of proposed solar farm project off of Redman Road <br />Erosion Control / gormwater Division comments: <br />The overall idea presented in the site plan appears acceptable, however I would like to point out the following concerns: <br />The water features and associated stream buffers shown are 40f§ but not §§A' 04b the field visit by Orange <br />County staff on September 20, 2013. Please verify the site plan accurately reflects the results of the Surface <br />Water Identification. <br />2. With a proposed land disturbance in excessof 10,000 sf in the Upper Eno Protected Watershed, an Erosion <br />Control Plan will need to be approved and a Land Disturbance Permit will need to be obtained from Orange <br />County. Depending upon the proposed land clearing activities (conventional vs. non - conventional), temporary <br />erosion control measures will be required onsite and since the project is in the Falls Lake Watershed, they will <br />therefore need to be sized for the 25 year storm event. Please verify there is ample space for these temporary <br />measures. <br />3. In regards to stormwater, there shall be no net increase in peak flow leaving the site from the pre - development <br />conditions for the 1 -year, 24 -hour storm. Please verify there is ample space remaining in the event a post - <br />construction BM Pis required to attenuate peak flow. <br />4. With a proposed land disturbance in excess of 12,000 sf in the Upper Eno Protected Watershed, a iormwater <br />Management Plan will need to be approved by Orange County. Also keep in mind that the project is subject to <br />new development stormwater regulations for the Falls Lake Watershed, so export limitations are 2.2 <br />pounds/acre /year for nitrogen and 0.33 pounds/acre /year for phosphorus. Please verify there is ample space <br />remaining in the event a post - construction BM Pis required to reduce nutrient loading. <br />Thanks, <br />Wesley Poole <br />Orange County Planning & Inspections Dept. <br />Erosion Control Division <br />(919) 245 -2587 <br />