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ORANGE COUNTY PLANING DEPARTMENT 9 <br /> N <br /> HILLSBOROUGH <br /> NORTH CAROLINA <br /> 27278 <br /> p•tI <br /> e <br /> 6717"T <br /> MEMORANDUM <br /> TO: Jane. Atwater, Planner G <br /> FROM: Warren Faircloth, Erosion Control Officer` <br /> SUBJECT: Stormwater Management for Lynnwood Acres II <br /> DATE: May 8, 1986 <br /> This plan proposes to meet the Ordinance requirements <br /> by constructing a stormwater detention pond to hold <br /> the post-development peak rate of runoff to the <br /> predevelopment rate. Implementation of the proposed <br /> plan would control the peak rate of runoff to the <br /> pre-development rate for a ten-year storm. <br /> i question the wisdom of requiring the implementation <br /> offt a detention structure in a situation such as this <br /> subdivision. The construction of the detention pond <br /> and the necessary diversion to direct runoff to the <br /> pond creates an additional disturbance of the <br /> existing woods and reduction of the natural absorbing <br /> and filtering capacity of the property. The lots in <br /> this subdivision a very large in comparison to the <br /> expected area of impervious surface to be added, and <br /> the existing pond, which is part of this property, <br /> would will act as a filtering device and a detention <br /> device without the necessity of additional distur- <br /> bance or construction . <br /> It would seem to be to the designers advantage to <br /> consider these points and apply the existing <br /> conditions to meeting the Ordinance requirements. <br /> c: Phil Post & Associates <br /> PLUVA1 54-e6 <br />