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HomeMy WebLinkAboutWPO200800107 Review Comments Erosion Control Plan 2009-01-22�'IRGINZ� COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road Charlottesville, Virginia 22902 -4596 Phone (434) 296 -5832 Fax(434)972-4126 Project: Plan preparer: Owner or rep.: Date received: Date of Comment: Engineer: WPO- 2008 - 00107, Barn Site Lugas Property Mr. Jack Lugas Mr. Jack Lugas 12 Dec 2008 22 Jan 2009 Amy Pflaum A. General Review Comments It appears that this construction is very near, or possibly in, an existing stream buffer. Disturbance within a stream buffer (including earthwork, tree removal, addition of structures) may only be authorized by the County Engineer under Section 17 -321 of the Water Protection Ordinance. If development is anticipated within the stream buffer, please submit an application for Request to Develop in a Stream Buffer to the Community Development Department. If development in the stream buffer is authorized, mitigation will be required. Mitigation is required at 2 times the disturbed acreage (8800 x 2 = 17,600 sf) and the following options are available (from the Albemarle County Design Standards Manual): a. For every 400 square foot unit or fraction thereof, plant one (1) canopy tree measuring 1 1 /2" — 2" caliper or a large evergreen 6 feet in height, one (1) understory tree measuring 3/4" — 1 1/2" caliper or one evergreen 4 feet in height, and one (1) small shrub 15" — 18" in height. 17, 600sf x (I canopy tree + 1 understory tree + I shrub) 1400sf = 44 of each plant (canopy tree, understory tree, shrub) would be required for a total of 132 plants. b. For every acre or fraction thereof, plant 1,210 hardwood and/or pine seedlings on approximately 6'X6' centers without tree tubes and mats. 17,600sf/43,560 = 0.404 ac x 1210 = 489 seedlings without tubes & mats c. For every acre or fraction thereof, plant 600 hardwood and/or pine seedlings on approximately 8'X8' centers with tree tubes and mats. 0.404ac x 600 = 24 seedlings with tubes & mats B. ESC Plan Review Comments 1. The Erosion & Sediment Control Plan can not be approved until the matter of stream buffer disturbance is resolved. 2. Please provide the Erosion & Sediment Control Plan (E &SC Plan) at a measurable scale. 3. Please add existing topography and existing stream buffers to the E &SC Plan. These features can be found on the County GIS website. 4. Please add the limits of disturbance to the E &SC Plan. 5. A construction entrance (per Standard & Specification 3.02 of the Virginia Erosion & Sediment Control Handbook) is required on the existing driveway. Once these comments have been addressed, please submit 2 copies of the revised plans to Current Development Engineering. Current Development Engineering is available from 2:30 -4 PM on Thursdays to discuss these review comments. Please contact Amy Pflaum at 434 - 296 -5832 ext. 3069 or email apflaum @albemarle.org to schedule an appointment. \\ Cob- dts01 \cityviewlnk\Docs \2008 \WPO \WPO200800107 Barn SiteTl_esc_ADP_08 -107 Barn Site.doc