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HomeMy WebLinkAbout20041178 Ver 2_Monitoring Report_20130808CLearWaLer ClearWater Environmental Consultants, Inc. August 5, 2013 www.ewenv.com Mr. Chuck Cranford NC Division of Water Quality 2090 US Highway 70 Swannanoa, NC 28778 RE: The Ramble Culvert Monitoring DWQ Project No. 20041178 Version 3 #2 Buncombe County, North Carolina Dear Mr. Cranford, IC- q - I ►'1 $ v3 L5t;:�'�1J �J AUG -GZ013 D w_ W MR OURLITY Please reference the 401 Water Quality Certification (Certification) issued by the NC Division of Water Quality (DWQ) on July 30, 2009 (Attachment A). The Certification authorizes 274 linear feet of stream impact at the Ramble in Biltmore Forest, Buncombe County, North Carolina. This correspondence complies with Additional Condition 3 (Culvert Installation) in the Certification. Culverted crossings at the Ramble have been monitored and the results are discussed below. Crossing #1 The DWQ noted that the culverts in this location were perched above the streambed at the discharge point. Remedial activities were completed at Crossing #1 to raise the water elevation so that the perch condition was eliminated. A cross section and longitudinal profile; along with representative photographs, are shown below. Cross - Section Crossing #1 95 — 1 - 94 93 c 92 91 w 89 - 88 0 5 10 15 20 25 30 Station (ft) --� Ground Surface (2012) —Ground Surface (2013) Crossing #1. Cross - Section. 224 South Grove Street, Suite F Hendersonville, NC 28792 828. 698 -9800 Tel 828 - 698 -9003 Fax Mr. Chuck Cranford August 5, 2013 Page 2 of I I rnoto 1. Lrossing 171. view of double barrel culverts looking upstream. Photo 2. Crossing #1. Water depth in the left culvert looking upstream is approximately 1.0 foot. DWQ Project No. 20041 178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 3 of I I Photo 3. Crossing #1. Water depth in the right culvert looking upstream is approximately 0.95 feet. Longitudinal Profile Crossing #1 92 - -- - -- — - -._. tK 91 o > 90 ' ar . w 89 0 10 20 30 40 50 60 Station (ft) • Thalweg 2012 —• Thalweg 2013 Water Surface Crossing #]. Longitudinal Profile. DWQ Project No. 20041 178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 4 of I t Crossing #2 The DWQ noted that the culverts in this location were perched above the streambed at the discharge point. Remedial activities were completed at Crossing #2 to raise the water elevation so that the perch condition was eliminated. A cross section and longitudinal profile; along with representative photographs, are shown below. Cross - Section Crossing #2 90 ' 89 c 88 �a 87 w 86 0 2 4 6 8 10 12 14 16 18 20 22 Station (ft) — Ground Surface (2012) - -- Ground Surface (2013) Crossing #2. Cross - Section. Photo 4. Crossing #2. View of double barrel culverts looking upstream. DWQ Project No. 20041178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 5 of I I Photo 5. Crossing #2. Water depth immediately below the culvert is approximately 0.26 feet. Longitudinal Profile Crossing #2 89 � 88 , 87 M W 86 85 0 5 10 15 20 25 Station (ft) - Thalweg 2012 Water Surface Thalweg 2013 Crossing #2. Longitudinal Profile. DWQ Project No. 20041178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 6 of I I Crossing #3 The DWQ noted that the culvert in this location was perched above the streambed at the discharge point. Remedial activities were completed at Crossing #3 to raise the water elevation so that the perch condition was eliminated. A cross section and longitudinal profile; along with representative photographs, are shown below. Cross-Section Crossing #3 94 93 M > 92 w 91 0 2 4 6 8 10 12 14 16 18 Station (ft) —+— Ground Surface (2012) —*— Ground Surface (2013) Crossing #3. Cross - Section. Photo 6. Crossing #3. View of culvert looking upstream. DWQ Project No. 20041178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 7 of I I Photo 7. Crossing #3. Water depth in the culvert is approximately 0.3 feet. Longitudinal Profile Crossing #3 93 92 C w 91 M 90 w 89 0 2 4 6 8 10 12 14 16 18 20 22 24 Station (ft) — Thalweg 2012 • . • — Water Surface — Thalweg 2013 Crossing #3. Longitudinal Profile. DWQ Project No. 20041178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 8 of Crossing #8 The DWQ noted that the culvert in this location was perched above the streambed at the discharge point. The applicant evaluated crossing #8 and as stated in the September 15, 2009 correspondence to DWQ: "The culvert in its current condition is not perched. Photos of the crossing clearly show water backing up in the culvert and streambed material accumulating in the culvert. There is approximately 0.29 feet of water backing up into the culvert. No corrective action is proposed for this crossing." Photos have been included in this report for review. ( i All s ♦ ." 7 f + _4 - I 2013.109/5,5, Photo 8. Crossing #8. View of culvert looking upstream. DWQ Project No. 20041178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page 9 of I I Photo 9. Crossing #8. There has been no change in stream condition at this location since 2009. Water depth in the culvert is approximately 0.29 feet. DWQ Project No. 20041178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Pagc 10 of I I Crossing #9 The DWQ did not specifically identify Crossing #9 in the 401 Certification. The applicant evaluated crossing #9 and as stated in the September 15, 2009 correspondence to DWQ: "The culvert in its current condition is not perched. Photos of the crossing clearly show water backing up in the culvert and streambed material accumulating in the culvert. There is approximately 0.62 feet of water backing up into the culvert. No corrective action is proposed for this crossing." Photos have been included in this report for review. !L 1 n. • -� .cr a+ �� - '1 Il�f Ste• �7 y^ • a`"a + J r Photo 10. Crossing #9. View of culvert looking upstream. There has been no change in stream condition at this location since 2009. Water depth in the culvert is approximately 0.62 feet. DWQ Project No. 20041 178 Culvert Monitoring 2013 Mr. Chuck Cranford August 5, 2013 Page I I of I I Crossing #10 The DWQ did not specifically identify Crossing #10 in the 401 Certification. The applicant evaluated crossing #10 and as stated in the September 15, 2009 correspondence to DWQ: "The culvert in its current condition is not perched. Photos of the crossing clearly show water backing up in the culvert and streambed material accumulating in the culvert. There is approximately 0.35 feet of water backing up into the culvert. No corrective action is proposed for this crossing." Photos have been included in this report for review. Photo 11. Crossing #10. View of culvert looking upstream. There has been no change in stream condition at this location since 2009. Water depth in the culvert is approximately 0.35 feet. The applicant believes the information in this letter satisfies Additional Condition 3 in the 401 Water Quality Certification. Please do not hesitate to contact me at (828) 698 -9800 if you have any questions or comments regarding the information submitting with this letter. F cere , Clement Rid e Principal cc: US Army Corps of Engineers — Tasha McCormick NC Division of Water Quality, Raleigh — Karen Higgens DWQ Project No. 20041 178 Culvert Monitoring 2013 Attachment A DWQ 401 Water Quality Certification DWQ Project No. 20041178 Culvert Monitoring 2013 LA MOIR North Carolina Department of Environment Beverly Eaves Perdue Governor July 30, 2009 Tom Williamson Ramble Biltmore Forest, LLC One Town Square, Suite 330 Asheville, North Carolina 28803 and Natural Resources Division of Water Quarity Coleen H. Sullins Director Subject: 401 Water Quality Certification - Approval The Ramble DWQ Project # 20041178 Version 3 #2 Buncombe County French Broad / Dingle Creek / C / 6-71 Dear A&. Williamson: Dee Freeman Secretary The DWQ has completed the review of your 401 Wafter Quality Certification modification application associated with the subject project listed above and shall replace the Certification issued May 29, 2009. Thii modified Approval is being granted to place fill within or otherwise impact 274 linear feet of streams for the purpose of residential subdivision development at the subject property. This approval requires you to follow the conditions listed in the attached Certification and any additional conditions Hated below. Project impacts are covered by General Water Quality Certification Number 3705. This Certification allows you to use Regional General Permit 29 when issued by the US Army Corps of Engineers (USACIJ). Authorization to proceed with your proposed impacts or to conduct impacts to waters as depicted in your application and as authorized by this Certification shall expire upon expiration of the cmmsponding USACE General Permit Verification. In addition, you should obtain or otherwise cmaply with any other required federal, state or local permits before you proceed with your project including (but not limited to) Erosion and Sediment Control and stormwater regulations. This approval is for the purpose and design that you described in your application. If you change your project, you must notify us and may be required to submit a new application. Impacts Approved The following impacts are hereby approved as long as all of the other specific and general conditions of this Certification are met. No other impacts are approved including incidental impacts: t o® don: 2090 u.S. Rghway 70. swan=ca. North CM&M 28778 Phone: 828-29649M FAX: B 299.70431 Cusbner Service 4877 - 23.8748 Be t"temet ""^ 4orthCaroUa Ramble M more Forest. LLr MY 30.2009 Page 2 of 3 Stream Amount Approved (Units) 100 feet} Plan Location or Reference 1 Stream 20 feet 2 Stream Stream 10 (feet) 40 feet) 3 18 Stream 20 (feet) 9 Stream 20 feet 10 Strom 4 feet 18 Stream Stream Stream 20 (feet) 20 feet 20 feet) Utility erassin A em Utili �rmniNr- Uo..,.,i dliry Additional Conditions I. Compensatory Mitigation Using the Ecosystem Enhancement Program MP) We understand that you wish to make a payment to the NCDENR Wetlands Trust Fund administered by the NC Ecosystem Enhancement Program (EEP) to meet this mitigation requitement. This has been determined by the DWQ to be a suitable method to meet the mitigation requirement. Until the EEP receives and cleats your check (made payable to: DENR — Ecosystem Enhancement Program Office), no impacts specified in this Authorization Certificate shall occur. The ESP should be contacted at (919) 716 -1921 if you have any questions concerning payment into the fund. You have 60 days from the date of this approval to make this payment For accounting proposes, this Authorization Certificate authorizes payment into the NCDENR Wetlands Trust Frmd to meet the following compensatory mitigation requirement: CompenmMry Mitigation I River and Snb -basin Number Broad 2. No Direct Discharge of Stmmwnta The Water Quality Certification Additional Conditions (issued August 5, 2004) for this project required that "no direct discharge of concentrated stormwater shall be allowed from this projecL All collected stormwater must be treated and discharged via diffuse flow through vegetated buffers." An on -site inspection from the Regional Office revealed that the roadside sweles at dossing #18 had stormwater drains to the surface waters below. Within 30 calendar days of the issuance of this Certification, you must provide a plan and time line for implementation, which will bring this crossing into compliance with the above condition. 3. Culvert Installation The Water Quality Certification Additional Conditions (issued August 5, 2004) for this project required that "culverts requited for this project shall be installed in such a manner that the original stream profiles are not altered. Existing stream dimensions including the cross section dimensions, pattem, and longitudinal profile must be maintained above and below locations of each cnlverL Culverts shall be designed and installed to allow for aquatic life movement as well as to prevent head cutting of the streams. If any of the existing pipes are, or become perched the appropriate stream grade shall be re- established, or if the pipes installed m a parched mariner the pipes shall be removed and re- installed correctly. Culverts shall not be installed in such a manner that will cause aggradation or erosion of the stream up or down stream of the culverts. Existing stream dimensions Ramble Bilo== Forest, ri.0 7WY 30, 2009 Page 3 of 3 including the cross section dimensions pattern and longitudinal profile shall be maintained above and below locations of each culvert" An on-site inspection from the Regional Office revealed the following • Crossing #1 (dual barrel culverts) is perched above the streambed at its discharge point. • Crossing #2 (dual barrel culverts) is perched above the streambed at its discharge point. • Crossing #3 is perched • Crossing #8 is perched at its discharge point. All crossings within the development must be re- evaluated, documented (photographs with scale both above and below) and a plan developed to bring all crossings into compliance with the above cited Certification condition. This plan along with a time line for implementation shall be submitted within 30 calendar days of issuance with this approval. All mitigation and installation modifications shall be completed prior to September 30,2 009. Violations of any cond;pon herein set forth may result in revocation of this Certification and may result in criminal and/or civil penalties. If you do not accept any of the conditions of this Certification (associated with the approved wetland or stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150E of the North Carolina General Statutes to the Offi of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699 -6714. This certification and its conditions are ce final and binding unless you ask for a hearing. This letter completes the review of your application by the Division of water Quality under Section 401 of the Clean Water Act. If you have any questions, please contact Kevin Barnett in the Asheville Regional Office at 828 - 296.4657. Sincerely, Coleen H. Sullins, Director CHS1khb cc: USACB Asheville RegulaUory Field Office — Electronic Copy 401 Permitting Unit — Central Office — Electronic Copy David McHenry —NC Wildlife Resources Commission — Electronic Copy File Copy ( MWPDATAWEWWQ% aowmbeW0lW41178ver3 .Rnmble92.eppmval.dW