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Home My WebLink About20191577 Ver 1_Self-Reporting – Sediment Removal 04192021_20210419DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 CLerWaer _„„). ClearWater Environmental Consultants, Inc. www.cwenv.com April 20, 2021 Mr. Andrew Moore NC Division of Water Resources 2090 US Highway 70 Swannanoa, North Carolina 28778 RE: Self -Reporting — Sediment Removal Project Ranger - Biltmore Farms Bridge and Access Road Buncombe County, North Carolina Dear Mr. Moore, At the request of Biltmore Farms, Inc. ClearWater Environmental Consultants, Inc. (CEC) conducted a site inspection for the Project Ranger site on March 29, 2021. The purpose of this visit was to evaluate erosion and off -site sedimentation concerns following a major rain event that occurred on the night of Thursday March 26, 2021. The site received over 3 inches of rain within a 12-hour span. This rain event led to off - site sedimentation entering three unnamed tributaries to the French Broad River. CEC documented the sediment deposition in pockets ranging from 1-7 inches over approximately 1,900 linear feet (Attachment A). After notifying the Division of Water Resources (DWR), Biltmore Farms, Inc. removed the sediment from the unnamed tributaries using standard removal techniques. Following the sediment removal efforts, CEC reevaluated the site on April 19, 2021. It is the opinion of CEC that remediation activities for the Biltmore Farms Bridge and Access Road are now complete. Any other off -project sediment that impacted jurisdictional streams and wetlands and any subsequent remediation efforts have not been evaluated as part of this report. Representative before and after photographs are included in this report (Attachment B). Please do not hesitate to contact us at 828-698-9800 if you have any questions or comments. Sincerely, ,---DocuSigned by: SAE92310EDC6E42D... Britten Yant, P.W.S. Biologist cc: Stan Aiken, N.C. DEMLR Shawna Riddle, N.C. DEMLR rDocuSigned by: 2. U 21ad1C 0A79F7DC85EE4F7... R. Clement Riddle, P.W.S. Principal 145 7th Avenue West, Suite B Hendersonville, NC 28792 828-698-9800 Tel DocuSign Envelope ID: 191 FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Attachment A Sediment Removal Location Map DocuSign Envelope ID: 191 FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Biltmore Farms Bridge and Access Road Open Water L _ 1 CEC Delineation Boundary Contours 4ft Previously Permitted Wetland Fill Stream S3 Sediment 2-6 inches Removed Buncombe County, North Carolina CLearWaLer 145 7th Avenue West, Suite B Hendersonville, NC 28792 Sediment Removal Map Field Visit - 4.19.2021 Attachment A DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Attachment B Representative Photographs (March 29, 2021 & April 19,2021) DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 1: 2-7 inches of sediment to be removed from Si and adjacent wetland. View facing upstream. Photo 2: 2-7 inches of sediment removed from S 1 and adjacent wetland. View facing upstream. DocuSign Envelope ID: 191 FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 3: 2-5 inches of sediment to be removed from W78 wetland. View facing northwest. Photo 4: 2-5 inches of sediment removed from W78 wetland. View facing northwest. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 5: 1-3 inches of sediment to be removed from S2 and adjacent wetland. View facing downstream. Photo 6: 1-3 inches of sediment removed from S2 and adjacent wetland. View facing downstream. DocuSign Envelope ID: 191 FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 7: Sediment overwhelmed erosion control measure at S2 road crossing during past storm event. Photo 8: Additional erosion control measures added to access road. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 9: 1-3 inches of sediment to be removed from S2 and adjacent wetland. View facing upstream. Photo 10: 1-3 inches of sediment removed from S2 and adjacent wetland. View facing upstream. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 1 1: 2-6 inches of sediment to be removed from S3/ pond forebay. View facing upstream. Photo 12: 2-6 inches of sediment removed from S3. Depleted muck soils with no streambed below. No further removal is recommended at this time. View facing upstream. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 13: Old dewatered pond has trapped sediment from the recent release. An off -project (non-Biltmore Farms) release contributed significant sediment to the S3 pond. Photo 14: Banks have been covered with seed and straw. Recent sediment has been skimmed of the top of the dewatered pond. No further sediment removal from the pond is recommended at this time. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 15: S3 outfall below old inline pond. 2-6 inches of sediment to be removed from S3. View facing upstream. Photo 16: S3 outfall below old inline pond. 2-6 inches of sediment removed from S3. View facing upstream. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 17: 2-6 inches of sediment to be removed from S3 and adjcct wctlands. View facing downstream. Photo 18: 2-6 inches of sediment removed from S3 and adject wetlands. View facing downstream. DocuSign Envelope ID: 191FA4E5-4DDF-4F3E-9141-BDE4D2ADOEF9 Photo 19: 2-6 inches of sediment to be removed from S3 and adject wetlands. View facing downstream. Photo 20: 2-6 inches of sediment removed from S3 and adject wetlands. View facing downstream.