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HomeMy WebLinkAbout20060331 Ver 1_More Info Received_20120601DENR-FRO JUN 0 1 2012 DWQ S'FATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION BEVERLY EAVES PERDUE EUGENE A. CONTI, JR. GOVERNOR SECRETARY May 30, 2012 Project No.: 34480.3.GV1 NHF-0311(23) Contract No: C201918 TIP No.: R-2606B County: Randolph Location: Design—Build US 311 Bypass from North of Spencer Road (SR 1929) to US 220 — Future 1-74. Subject: Wyatt Farlow Lake Mr. Drew Johnson, PE Barnhill Contracting Company Pb Box 1529 Tarboro, NC 27886 Dear Mr. Johnson, As you are aware the Wyatt Farlow Lake has received silt and turbidity several times from the stream leading directly into the lake. An investigation was conducted by DWQ, in which a report was written on May 29, 2012. The investigation revealed that deposits of silt seem to be far more extensive than what was first thought. Attached is the letter from Mr. Mason Herndon with the Division of Water Quality, requesting that silt deposits be removed from the streams that flow to Farlow Lake. In addition, Mr. Herndon requests that measures be place at the outlet end of the 60" pipe culvert at approximate station 374+00 Rt. to help retain any future sediment loss downstream. In accordance with the Standard Specifications for Roads and Structures, Section 107-12, 107-13, and 107-15, please contact Mr. Wyatt Farlow, 336-953-1551, to resolve this issue. Include this office in any correspondence, meetings, etc., concerning this issue. MAILING ADDRESS: RESIDENT ENGNEER'S OFFICE P-O. BOX 1164 ASHEBORO, NC 27204 TELEPHONE: 336.318.4020 FAX: 336.318.4030 WEBSITE.' WWWNCOOTGOV LOCATION: 300 DOT DRIVE ASHEBORO, NC 27204 Page 2 R-2606B May 30, 2012 If you have any questions, or if this office can be of further assistance, please advise. Sincerely, W2 5z* Reuben Blakley, PE Resident Engineer Attachment cc: Ms. Pat Hurley ec: V. G. Davis, PE Mr. Richard Hancock, PE Mr. Ron Hancock, PE Mr. Barry Harrington Mr. Mason Herndon - NCDENR Mr. Richard Moore — NCDOJ Mr. Wyatt Farlow File NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Governor Director May 29, 2012 MEMORANDUM To: John Partin, Assistant Resident Engineer, NCDOT Division 8 From: Mason Herndon, NCDWQ, Fayetteville Regional Office /ffrI Subject: TIP No. R -2606B Randolph County Dee Freeman Secretary On May 22, 2012, a site visit was conducted on the R -2606B (US 311) project in Randolph County, following the report of sedimentation and turbidity in tributaries to a private pond downstream of the project owned by Mr. Wyatt Farlow and your report of sediment and turbidity coming to the project from an adjacent development. Both of these reports were received on May 21, 2012. Attendees at this site included you, Kelly Whitaker and Wes Hicks with the Randolph County Soil and Water Conservation District Office, Wyatt Farlow (landowner), Barry Harrington, Roadside Environmental, and other NCDOT staff. During the site visit, sediment loss was noted at permit sites 23A and 23B of this project. This is fill of a jurisdictional stream without authorization and is a violation of 15A NCAC 2H .0500. The following is documentation of what was noted during this site visit and corrective actions that need to be addressed: Permit Site 23B Station —L- 380 +10 to 381 +00 RT, Structure 307, Drop Inlet Outlet, erosion control BMP's were in placed and were functioning properly. Some sediment deposits were noted at the outlet of the 24" pipe and depositional bars were noted in several locations along the bank of the stream down to where the stream enters the main stem of the system, approximately 300 feet. The Division requests that NCDOT remove this material immediately. A film of sediment continues to exist in the streambed of this system; therefore, this area needs to be monitored after each rain event over 0.5 inches and accumulations removed, Other items that need to be addressed at this site: • No source of sediment was observed; however, the outfall pipe was observed to periodically gush clear water for no apparent reason. On a prior visit, Ms. Whitaker said she had noted turbid water discharging from this pipe in a similar manner. The Division request that this pipe be investigated to ensure that it is functioning properly and free of defects. • Upon review of the permit drawing a Class B rip rap dissipater pad is proposed on the outlet of this pipe. The Division request that this measure be installed immediately. 225 Green St., Suite 714, Fayetteville, NC 28301 -5043 Phone: 910 - 433.33901 FAX: 910 -486 -0707 Internet: www rimaterquality,orcl An Equal Opportunity %A #irmalive Action Employer — 5p4-c Recycled 1 Post Consumer Paper One NorthCarolina Amrally R -2606B May 29, 2012 Page 2 of 4 • The drop inlet protection measure in the median was in need of maintenance. Sediment accumulations were noted to be within 8 inches of the top of this measure. The accumulation had been removed prior to the conclusion of this visit; however the Division requests that this area continue to be monitored closely. Permit Site 23A Station 374 +00 to 374 +40 -L, 60" pipe and 24" drop inlet outlet, substantial sediment deposits were noted upstream and downstream of this culvert. Depositions were observed to be up to 4 inches in depth downstream of the NCDOT project. We visited the project known as Ace Avent that is upstream of the US 311 project. Based our conversations, it is believed that project has been under construction for approximately two weeks. Heavy sedimentation was noted in the stream and in several other locations beyond the clearing limits and erosion control measures. Amy Euliss with the Winston Salem Regional Office (WSRO) was contacted and further investigation by WSRO was requested. The following observations were noted on the NCDOT project and need to be addressed: • Two springs have developed within the fill slope at this location that have substantial flow and are creating rills in the slope. The Division has concerns that if these springs continue to flow down the fill slope it could result in slope failure and significant sediment loss into the stream. The Division request that NCDOT investigate this issue, and provide the Division with a course of action to alleviate this concern. • Upon review of the permit drawing a Class I rip rap dissipater pad is proposed on the outlet of this pipe and toe protection is proposed on the both the inlet and outlet ends of this culvert. Per our conversation, the rip rap toe protection and dissipater pad is not proposed to be installed until the sediment basins are removed. The Division is satisfied with this proposal at this time. However, based on the sediment observed upstream of the project, the Division recommends that NCDOT place an erosion control measure at the outlet of the pipe to capture sediment before it leaves the project. The Division typically does not condone erosion control measures within a jurisdictional stream; however, given the unfortunate circumstances that exist; we feel that it is warranted in this situation. • Based on a phone conversation with Sue Homewood with SWPS in the WSRO, there are sediment deposits within two stream channels on the Ace Avant site, however at the time of her visit, significant sediment accumulations were confined to a small portion of stream immediately adjacent to the road on the project, and the remainder of the stream channels consisted of a thin film on the stream banks and stream bed and significant turbidity in the channel. Furthermore there is no evidence that some of this sediment downstream of the NCDOT project is not an accumulation of material from prior losses suffered on this project. Therefore the Division request that NCDOT remove all material within the project limits and downstream to the 900 foot limit that was cleaned out in 2010. After our review of these NCDOT sites, Kelly Whitaker, Wes Hicks, Barry Harrington, Wyatt Farlow and 1, visited three other sites downstream of the project. The first site is approximately one mile downstream of the project at the end of Millikan Road. The second site we visited was the lower reach of the stream on the Farlow property and the last observation was at the Farlow pond which approximately 2 miles downstream of the NCDOT project. My observations during this visit and a prior visit with Mr. Farlow on June 28, 2011 are as follows: • Millikan Road site — substantial (approximately 1.5 — 3 inches) sediment deposits on the stream banks and turbidity was noted during my visit on June 28, 2011. Sediment accumulations and R -2606B May 29, 2012 Page 3 of 4 turbidity was less substantial and more sporadic during this visit. During both visits a film of sediment was observed on the streambed. No evidence of sediment or turbidity was noted on any tributaries to the main branch of this stream which originates just upstream of the NCDOT project. Just upstream of the Farlow Pond - during both visits, sediment deposits were noted along the stream bank. Although the deposits were more granular than observed upstream, the base material appeared to be consistent with the red clay material found upstream. A sediment film was noted on the streambed during both visits. Turbidity was less prevalent during this visit than that noted on June 28, 2011. No evidence of turbidity or sediment was observed in a tributary that enters the main channel just upstream of a dam relic on the Farlow property. Farlow Pond — turbidity was observed on both visits. Based on my records and information provided to me by your office, there have been eight sediment loss events on this project, with the major events occuning on May 17, 2010 and June 14, 2010 due to a four to five inch rain event. According to your records these two events resulted in the loss of 515 cubic yards of material. NCDOT made a valet effort to retrieve the material lost after these and other unforeseeable events, and based on my observations and review of the NPDES records these losses were not the result of negligence or lack of due diligence. However, it is in my best professional judgment that the impacts of these losses were far more extensive than originally evaluated and have had a detrimental effect on this entire stream system below the project, including the Farlow Pond. The Division strongly recommends that NCDOT work with Mr. Farlow to rectify this situation. After leaving the Farlow property, I conducted an independent follow up review of the sediment loss sites that we visited on March 15, 2012 including Sites 27 and 28 that warranted a Notice of Violation which was issued on March 22, 2012. My observations are as follows: Permit Site 27 Station. -L- 445 +80 to 445+90 All sediment has been removed from the stream system. Adequate erosion control measures have been installed and disturbed area has been matted. No further actions are required at this time. Continue to monitor the area. Permit Site 28 Station. -L- 470+20 to 471+60 All sediment has been removed from the stream and floodplain. No vegetative buffer was left adjacent to the stream as suggested. The area has been matted with coir fiber matting. The cattail and juncus root matt appears to still be intact. This area needs to be monitored for vegetation reestablishment. Supplemental riparian seeding may be required if natural vegetation does not reestablish. Permit Site 29 Station —RPC3- 50 +40 to 51+40 The two sediment bars have been removed from stream bank and floodplain at outlet of culvert. Floodplain has been matted with coir fiber matting. This area needs to be monitored for vegetation reestablishment. Supplemental riparian seeding may be required if natural vegetation does not reestablish. Station —RPC3- 56 +00 Sediment bar noted in the stream channel has been removed. No further action is required. R -2606B May 29, 2012 Page 4 of 4 If you have any questions or need any additional information on the continents made above, please do not hesitate to me at (910) 308 -4021 or mason.hemdon @ncdenr.gov. Thank you again for your time and efforts to address these concerns. Ec: Rueben Blakely, Division 8 Resident Engineer John Olinger, Division 8 Construction Engineer Vicki Davis, NCDOT Area Construction Engineer Art King, Division 8 Environmental Officer Ronnie Smith, US Army Corps of Engineers, Wilmington District Office Barry Harrington, NCDOT Roadside Environmental, Div. 7 & 8 Kelly Whitaker, Randolph County Soil and Water Conservation District Belinda Henson, DWQ PRO Surface Water Protection Section David Wainwright, DWQ Wcdands1401 Transportation Group Amy Euliss, DWQ WRSO Surface Water Protection Section File Copy