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HomeMy WebLinkAbout20081764 Ver 7_CAMA Application_20220218ATM z- DESIGN ENGINEERING CONSULTING November 30, 2021 Heather Coats Beach & Inlet Management Project Coordinator Division of Coastal Management North Carolina Department of Environmental Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Re: North Topsail Beach Truck Haul Permit Modification — Phase/Reach 1 Beach Fill Dear Ms. Coats: Please allow this letter and submittal to serve as a formal request for a permit modification to CAMA Permit #79-10 to place beach compatible material along North Topsail Beach (NTB). This proposed will add sand to the upper, intertidal, and lower beach. Truck hauled sand is being brought in from an upland borrow source. This project is partially funded by FEMA and will require competitive bidding and two sand mines (ST Wooten Sand and 421 Sand) have been included as a sand source in this permit modification request. Both of these mines have been successfully used for recent Surf City and NTB dune restoration projects and have sufficient material for this project. Additional information, including project drawings and additional project descriptions, are attached. Please let me know of any comments or questions. Sincerely, Francis J. Way, PE Attachment: Permit Modification Permit Drawings and Project Description APPLIED TECHNOLOGY& MANAGEMENT, INC. P.O. BOX 20336 9 CHARLESTON, SC 29413-0336 9 843.414.1040 FORMS RON RIM UPLICU1011 for major Development Permit (last revised 12/27/06) North Carolina DIVISION OF COASTAL MANAGEMENT 1. Primary Applicant(Landowner Information Business Name Project Name (if applicable) Town of North Topsail Beach North Topsail Beach Reach 1 Truck Haul Applicant 1: First Name MI Last Name Alice Derian (Town Manager) Applicant 2: First Name MI Last Name N/A N/A If additional applicants, please attach an additional page(s) with names listed. Mailing Address PO Box City State 2008 Loggerhead Court N/A North Topsail Beach NC ZIP Country Phone No. FAX No. 28460 Onslow 910 - 328 - 1349 ext. 6 910 - 328 - 4508 Street Address (if different from above) City State ZIP N/A - Email townmanager@ntbnc.org 2. Agent(Contractor Information Business Name Applied Technology & Management Of North Carolina (Atm) Agent/ Contractor 1: First Name MI Last Name Fran J Way Agent/ Contractor 2: First Name MI Last Name N/A N/A Mailing Address PO Box City State 941 Houston Northcutt Blvd. N/A Mount Pleasant SC ZIP Phone No. 1 Phone No. 2 29464 843 - 414 - 1040 ext. 843 - 414 - 1050 ext. FAX No. Contractor # 843 414 0155 NC Engineering Firm License: C-1718 Street Address (if different from above) City State ZIP N/A Email fway@appliedtm.com <Form continues on back> 252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net Form DCM MP-1 (Page 2 of 4) APPLICATION for Major Development Permit 3. Project Location County (can be multiple) Street Address State Rd. # Onlsow 2174 New River Inlet Road to 2330 New River Inlet Road N/A Subdivision Name City State Zip N/A North Topsail Beach NC 28460 - Phone No. Lot No.(s) (if many, attach additional page with list) 910 - 328 - 1349 ext. N/A N/A, I I , a. In which NC river basin is the project located? b. Name of body of water nearest to proposed project White Oak River Basin Atlantic Ocean c. Is the water body identified in (b) above, natural or manmade? d. Name the closest major water body to the proposed project site. ®Natural ❑Manmade ❑Unknown Atlantic Ocean e. Is proposed work within city limits or planning jurisdiction? f. If applicable, list the planning jurisdiction or city limit the proposed ®Yes ❑No work falls within. Town of North Topsail Beach 4. Site Description a. Total length of shoreline on the tract (ft.) b. Size of entire tract (sq.ft.) 2,175 339,768 sq ft (7.8 acres) c. Size of individual lot(s) d. Approximate elevation of tract above NHW (normal high water) or N/A, I I NWL (normal water level) (If many lot sizes, please attach additional page with a list) —6 ft ❑NHW or ®NWL e. Vegetation on tract Sparse dune vegetation (sea oats, bitter panicum, etc.) occurs just landward of the proposed project area in some locations (although limited). f. Man-made features and uses now on tract Numerous public and private beach access walkways - recreation g. Identify and describe the existing land uses adjacent to the proposed project site. Beach public recreation. Dunes and dune walkovers landward of the proposed project. More landward of the beach, primarily residential and beach access lots. h. How does local government zone the tract? i. Is the proposed project consistent with the applicable zoning? C-1; Conservation District along the Ocean -front (Attach zoning compliance certificate, if applicable) R-1, Residential to the landward side of the dune system ®Yes ❑No El NA j. Is the proposed activity part of an urban waterfront redevelopment proposal? ❑Yes ®No k. Hasa professional archaeological assessment been done for the tract? If yes, attach a copy. ❑Yes ®No ❑NA If yes, by whom? I. Is the proposed project located in a National Registered Historic District or does it involve a ❑Yes ®No ❑NA National Register listed or eligible property? <Form continues on next page> 252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net Form DCM MP-1 (Page 3 of 4) APPLICATION for Major Development Permit m. (i) Are there wetlands on the site? ❑Yes ®No (ii) Are there coastal wetlands on the site? [-]Yes ®No (iii) If yes to either (i) or (ii) above, has a delineation been conducted? ❑Yes ❑No (Attach documentation, if available) n. Describe existing wastewater treatment facilities. N/A o. Describe existing drinking water supply source. N/A p. Describe existing storm water management or treatment systems. N/A 5. Activities and Impacts a. Will the project be for commercial, public, or private use? ❑Commercial ®Public/Government ❑ Private/Community b. Give a brief description of purpose, use, and daily operations of the project when complete. See attached project summary c. Describe the proposed construction methodology, types of construction equipment to be used during construction, the number of each type of equipment and where it is to be stored. See attached. d. List all development activities you propose. See attached. e. Are the proposed activities maintenance of an existing project, new work, or both? New Work f. What is the approximate total disturbed land area resulting from the proposed project? 7.8 acres ❑Sq.Ft or ®Acres g. Will the proposed project encroach on any public easement, public accessway or other area ❑Yes ®No ❑NA that the public has established use of? h. Describe location and type of existing and proposed discharges to waters of the state. See attached. Sand will be dry when excavated (from a stockpile) and placed (on the beach) therefore no discharges will occur at North Topsail Beach. The proposed upland sand mines are already permitted for sand excavation and transport offsite for various construction projects. i. Will wastewater or stormwater be discharged into a wetland? ❑Yes ®No ❑NA If yes, will this discharged water be of the same salinity as the receiving water? ❑Yes ❑No ®NA j. Is there any mitigation proposed? ❑Yes ®No ❑NA If yes, attach a mitigation proposal. <Form continues on back> 252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net Form DCM MP-1 (Page 4 of 4) APPLICATION for Major Development Permit 6. Additional Information In addition to this completed application form, (MP-1) the following items below, if applicable, must be submitted in order for the application package to be complete. Items (a) - (0 are always applicable to any major development application. Please consult the application instruction booklet on how to properly prepare the required items below. a. A project narrative. b. An accurate, dated work plat (including plan view and cross -sectional drawings) drawn to scale, Please give the present status of the proposed project. Is any portion already complete? If previously authorized work, clearly indicate on maps, plats, drawings to distinguish between work completed and proposed. c. A site or location map that is sufficiently detailed to guide agency personnel unfamiliar with the area to the site. d. A copy of the deed (with state application oniy) or other instrument under which the applicant claims title to the affected properties. e. The appropriate application fee. Check or money order made payable to DENR. f. A list of the names and complete addresses of the adjacent waterfront (riparian) landowners and signed return receipts as proof that such owners have received a copy of the application and plats by certified mail. Such landowners must be advised that they have 30 bays in which to submit comments on the proposed project to the Division of Coastal Management. Name See Attachment C. Return receipts will be provided at a later date. Phone No, Address Name See Attachment C Phone No. Address Name - Phone No. Address g. A list of previous state or federal permits issued for work on the project tract. Include permit numbers, permittee, and issuing dates. See Attachment A (project narrative). DCM 79-10 (Feb. 2020); SAW 2005-00344 (multiple issue dates); SAW-2017-02492 (2018) h. Signed consultant or agent authorization form, if applicable. i. Wetland delineation, if necessary. j. A signed AEC hazard notice for projects in oceanfront and inlet areas. (Must be signed by property owner) k. A statement of compliance with the N.C. Environmental Policy Act (N.C.G.S. 113A 1-10). if necessary. If the project involves expenditure of public funds or use of public lands, attach a statement documenting compliance with the North Carolina Environmental Policy Act. 7. Certification and Permission to Enter on Land understand that any permit issued in response to this application will allow only the development described in the application. The project will be subject to the conditions and restrictions contained in the permit. certify that I am authorized to grant, and do in fact grant permission to representatives of state and federal review agencies to enter on the aforementioned lands in connection with evaluating information related to this permit application and follow-up monitoring of the project. I further certify that the information provided in this application is truthful to the best of my knowledge. Date-11/30/2021 Print Name Fran Way Signature Please indicate application attachments pertaining to your proposed project. ®DCM MP-2 Excavation and Fill Information ❑DCM MP-5 Bridges and Culverts ®DCM MP-3 Upland Development ❑DCM MP-4 Structures Information 252-808-2808 :: 1-888-4RCOA5T :: www.nccoastaimanagement.net Form DCM MP-2 EXCAVATION and FILL (Except for bridges and culverts) Attach this form to Joint Application for CAMA Major Permit, Form DCM MP-1. Be sure to complete all other sections of the Joint Application that relate to this proposed project. Please include all supplemental information. Describe below the purpose of proposed excavation and/or fill activities. All values should be given in feet. Access Other Channel Canal Boat Basin Boat Ramp Rock Groin Rock (excluding (NLW or Breakwater shoreline NWL) stabilization Length - - - - - - 2,175 Width - _ _ _ _ 114-177 ft average Avg. Existing _ _ _ NA NA —2 ft NAVD88 Depth Final Project NA NA —5 ft NAVD88 Dept I (sand) 1. EXCAVATION ❑This section not applicable a. Amount of material to be excavated from below NHW or NWL in b. Type of material to be excavated. cubic yards. Sand Material will come from existing permitted upland sand mines (See attached project summary) C. (i) Does the area to be excavated include coastal wetlands/marsh d. High -ground excavation in cubic yards. (CW) submerged aquatic vegetation (SAV), shell bottom (SB), 45,000 cy. Material will come from existing permitted or other wetlands (WL)? If any boxes are checked, provide the upland sand mines (See attached project summary) number of square feet affected. ❑CW El SAV ❑SB OWL ®None (ii) Describe the purpose of the excavation in these areas: Sand source 2. DISPOSAL OF EXCAVATED MATERIAL ❑This section not applicable a. Location of disposal area. b. Dimensions of disposal area. Beach (see project narrative) 7.8 Acres. Two Upland Sand Mines (see project narrative) C. (i) Do you claim title to disposal area? d. (i) Will a disposal area be available for future maintenance? ®Yes ❑No ❑NA ❑Yes ❑No ®NA (ii) If no, attach a letter granting permission from the owner. (ii) If yes, where? e. (i) Does the disposal area include any coastal wetlands/marsh f. (i) Does the disposal include any area in the water? (CW), submerged aquatic vegetation (SAV), shell bottom (SB), ®Yes ❑No ❑NA or other wetlands (WL)? If any boxes are checked, provide the number of square feet affected. (ii) If yes, how much water area is affected? ❑CW El SAV ❑SB 4.3 acres OWL ®None (ii) Describe the purpose of disposal in these areas: beach renourishment 252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanaaement.net revised: 12/26/06 Form DCM MP-2 (Excavation and Fill, Page 2 of 2) 3. SHORELINE STABILIZATION - ® This section not applicable (if development is a wood groin, use MR-4 — Structures) a. Type of shoreline stabilization: b. Length: ❑Bulkhead ❑Riprap ❑Breakwater/Sill ❑Other: Width: c. Average distance waterward of NHW or NWL: d. Maximum distance waterward of NHW or NWL: e. Type of stabilization material: g. Number of square feet of fill to be placed below water level. Bulkhead backfill Riprap BreakwatedSill Other i. Source of fill material. f. W Has there been shoreline erosion during preceding 12 months? []Yes ❑No ❑NA (ii) if yes, state amount of erosion and source of erosion amount information. h. Type of fill material. 4. OTHER FILL ACTIVITIES ❑This section not applicable (Excluding Shoreline Stabilization) a. (i) Will fill material be brought to the site? ®Yes ❑No ❑NA b If yes, (ii) Amount of material to be placed in the water 20,363 cV (below MHW) (iii) Dimensions of fill area 7.8 acres (total) (iv) Purpose of fill Beach renourishment. See project narrative. (i) Will fill material be placed in coastal wetlands/marsh (CW), submerged aquatic vegetation (SAV), shell bottom (SB), or other wetlands (WL)? If any boxes are checked, provide the number of square feet affected. ❑CW ❑SAV ❑SB ❑WL ®None (ii) Describe the purpose of the fill in these areas7 5. GENERAL a. How will excavated or fill material be kept on site and erosion b. What type of construction equipment will be used (e.g., dragline, controlled? backhoe, or hydraulic dredge)? Sand will be dry during excavation and placement. See project Dumptrucks, bull dozers, all -wheel drive dumptrucks, back hoes, narrative. and other earhmoving heavy equipment. See project narrative. c. (i) Will navigational aids be required as a result of the project? ❑Yes ®No ❑NA (4) If yes, explain what type and how they will be implemented. 11/30/21 Date North Topsail Beach Reach 1 Truck Haul Project Name d. (i) Will wetlands be crossed in transporting equipment to project site? ❑Yes ®No ❑NA (ii) If yes, explain steps that will be taken to avoid or minimize environmental impacts. Fran Way Applicant Name Applicant Signature 252-808-2808 :: 1.888-4RCOAST :: www.nccoastalmanagement.net revised: 12126106 Form DCM MP-3 UPLAND DEVELOPMENT (Construction and/or land disturbing activities) Attach this form to Joint Application for CAMA Major Permit, Form DCM MP-1. Be sure to complete all other sections of the Joint Application that relate to this proposed project. Please include all supplemental information. GENERAL UPLAND DEVELOPMENT a. Type and number of buildings, facilities, units or structures b. Number of lots or parcels. proposed. N/A 0 c. Density (give the number of residential units and the units per acre). 0 e. If the proposed project will disturb more than one acre of land, the Division of Land Resources must receive an erosion and sedimentation control plan at least 30 days before land -disturbing activity begins. (i) If applicable, has a sedimentation and erosion control plan been submitted to the Division of Land Resources? ❑Yes ®No ❑NA (ii) If yes, list the date submitted: g. Give the percentage of the tract within the coastal shoreline AEC to be covered by impervious and/or built -upon surfaces, such as pavement, building, rooftops, or to be used for vehicular driveways or parking. 0 i. Give the percentage of the entire tract to be covered by impervious and/or built -upon surfaces, such as pavement, building, rooftops, or to be used for vehicular driveways or parking. 0 j. Describe proposed method of sewage disposal. N/A I. Describe location and type of proposed discharges to waters of the state (e.g., surface runoff, sanitary wastewater, industrial/ commercial effluent, "wash down" and residential discharges). No discharges to occur at the project site. d. Size of area to be graded, filled, or disturbed including roads, ditches, etc. See project narrative. No uplands landward of the dune are planned to be disturbed however 0.1 acres has been conservatively estimated for the beach access. Fill will be transferred on the upper beach. f. List the materials (such as marl, paver stone, asphalt, or concrete) to be used for impervious surfaces. None. This is beach renourishment only. h. Projects that require a CAMA Major Development Permit may also require a Stormwater Certification. (i) Has a site development plan been submitted to the Division of Water Quality for review? ❑Yes ❑No ®NA (ii) If yes, list the date submitted: k. Have the facilities described in Item (i) received state or local approval? ❑Yes ❑No ®NA If yes, attach appropriate documentation. m. Does the proposed project include an innovative stormwater design? ❑Yes ❑No ®NA If yes, attach appropriate documentation. 252-808-28082 :: 1-888-4RCOAST :: www.nccoastaimanaaement.net revised: 12/26/06 Form OCM MP-3 (Upland Development, Page 2 of 2) m. Describe proposed drinking water supply source (e g., well, community, public system, etc.) NIA o. When was the lots) platted and recorded? NIA Date 11 /30/2021 Project Name North Topsail Beach Reach 5 Truck Haul Applicant Name Fran Way Applicant �Signature n_ (i) Will water be impounded? ❑Yes ®No ❑NA (ii) If yes, how many acres? p If proposed development is a subdivision, will additional utilities be installed for this upland development? ❑Yes ❑No ®NA 252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net revised: 12126i06 AGENT AUTHORIZATION FOR CAMA PERMIT APPLICATION Name of Property Owner Requesting Permit: Mailing Address: Phone Number: Town of North Topsail Beach 2008 Loggerhead Court North Topsail Beach, NC 28460 910-328-1349 Email Address: townmanager@NTBNC.org I certify that I have authorized Fran Way of Applied Technology and Management Agent i Contractor to act on my behalf, for the purpose of applying for and obtaining all CAMA permits necessary for the following proposed development: Beach fill activities in Phase 5 and Phase 1 shoreline reaches using upland borrow area sources via truck haul at my property located at Phase 5 and Phase 1 shoreline reaches of NTB oceanfront in Onslow County. 1 furthermore certify that l am authorized to grant, and do in fact grant permission to Division of Coastal Management staff, the Local Permit Officer and their agents to enter on the aforementioned lands in connection with evaluating information related to this permit application. Property Owner Information: Si natu Yoa.y d-'I") fit° Print or Type Name Title 06 I ., S I oZ Date This certification is valid through 1 1 Attachment A Project Description North Topsail Beach Reach 1 Truck Haul Project Narrative November 2021 Overview The Town of North Topsail Beach (NTB) actively manages and maintains its approximate 11 miles of coastline. NTB is currently completing a dune truck haul project and is currently in permit processing for a Phase/Reach 5 beach truck haul. These dune and beach projects continue to provide beach area for habitat, residents, tourists and buffer protection to upland infrastructure. The past few hurricane seasons have brought several major hurricanes near the NTB coastline causing extensive erosion with Hurricane Florence (2018) and Dorian (2019). The State and FEMA have contributed funds to NTB for beach/dune recovery efforts from Hurricane Florence and Dorian. Figure 1: Overview of NTB reaches/phases of shoreline. North Topsail Beach has 5 reaches (also referred to as phases) of shoreline, beginning at Phase/Reach 1 along the New River Inlet at the north, down to Phase/Reach 5 which terminates at the Surf City border (see Figure 1). Project Purpose The purpose of the proposed project is to provide much needed sand to the Reach 1 section of beach along North Topsail Beach. This sand will be placed on the upper, intertidal and lower beach (no dune placement is proposed). North Topsail Beach, along with a large portion of the 1 North Carolina shore, have been subject to several major hurricanes over the last few hurricane seasons. These major hurricanes bring high tides and energetic seas that quickly erode beach berms and dunes and leave upland infrastructure vulnerable. The Town of North Topsail beach plans to renourish this section of Reach 1 to provide protection to the existing dunes, upland, and infrastructure adjacent to the beach. Note that this placement of material will be along shoreline that is outside of the USFWS CBRA (or COBRA) zone (although material can be placed within COBRA zones). Project Description The proposed project includes excavating sand from an existing permitted upland sand mine (sand mine details are attached) and trucking sand via dump trucks from the mine to the beach. Sand will be placed on the beach in a staging area by the dump trucks, loaded on an off -road dump truck by excavator, and then trucked from the beach access to the appropriate dumping locations. The sand will then be spread and graded to match lines shown on the attached plans by a combination of bull dozers and front-end loaders. This is the same general activity that the town has performed the last two years (during the winter/spring environmental window). The transfer of sand from the on -road dump truck to the off -road dump trump will occur on the upper beach at the beach access. This is to ensure no incompatible materials are introduced during the sand transfer. The Reach 1 template starts at 2174 New River Inlet Road and continues to 2330 New River Inlet. The template will be accessed through the existing beach access at -1300 New River Inlet Road (Jenkins Way access) or possibly an access at the Topsail Reef Villas (which begin at 2174 New River Inlet Road). The proposed berm elevation ranges between +3 and +6-foot NAVD88 with a 1 VAH seaward slope. The berm width is 90-150 feet wide, stretches -2,175 feet along the beach, and requires an average of -18 cy/ft of material. The trucking operations will utilize major roads during hauling and the off -road trucks will avoid existing dunes and vegetation. No dune or dune vegetation modifications are planned, and only existing beach accesses will be used (although there are some locations within the Topsail Reef Villas that may also allow for access without disturbing existing vegetation). Sand placed in the beach berm will not cover any existing vegetation or sandbags. Table 1 presents a list of the project characteristics for each Reach 1. Table 1: Proposed Beach Renourishment Information for Reach 1 ITEM Reach 1 Berm Width (ft) 90-150 Berm Height (ft NAVD88) 3'-6' Unit Volume (cy/ft) 16.4-24.1 Overall Length (ft) 2,175 Overall Footprint (acres) 7.8 Footprint Seaward MHW (acres) 4.3 Overall Volume (cy) 37,078 Over Volume +5% (cy) 38,932 Fill placed below MHW (cy) 20,363 2 For planning and permitting purposes, some additional volume is proposed to account for the recent nor'easter under king tide conditions in early November as well as any future erosion. A total project volume of 45,000 cy is proposed. Project Timing The project is planned to occur during the winter environmental window (i.e., outside of turtle nesting season). The Reach 1 project is proposed to occur during the in March and April 2022 as this element of the project is much smaller and should be completed in less than 6 weeks. Project Permit Drawings Project permit drawings are attached to the end of this document in Appendix B. The attached set of construction plans includes bathymetric and topographic data from June 2021. The mean high water (MHW) and mean low water (MLW) lines are based on elevations gathered during the July 2021 survey effort. Note that sandbags were also surveyed in August 2021. Table 2 presents an overview of the proposed project fill placements for the established annual monitoring stations. Table 2: Reach 1 Template Station Area Distance Volume Volume Volume (SF) (ft) (Cf) +Cy) (eY1ft) 1135+00 443.6 16.4 500 231,800 8,585 1140+00 1 483.E 17.4 100 282,400 10,459 1145+00 646 219 Soo 324,200 12,007 1150+00 650.8 500 162,700 5,026 1155+00 1 0 0.0 Total Z000 1,001,100 37,075 TOTAL EXPECTED AT TIME OF CONSTRUCTION 45,000 CY Truck Beach Access One beach access is identified for the project although the Town may attempt to use an area within the Topsail Reef Villas condominium property. The stockpile and rehandling area is required to transfer the truck -hauled material to all -wheel -drive dump trucks that travel on the beach. The transfer will occur on the beach to ensure material quality. Excavators and other heavy equipment will load the all -wheel -drive dump trucks. Dozers and similar heavy equipment will shape and construct the beach berm. Coordination with NTB public works will occur to ensure minimal disturbance at the beach access. Truck beach access will be restored to original conditions following project completion if necessary. This impact area is conservatively estimated at 0.1 acres, though the area will likely require no modifications for use as they are actively used by town safety and emergency vehicles. 3 Figure 2: Existing public beach access known as 'Jenkins Way" is the primary beach access. This access was used for recent dune truck haul placement from the Topsail Reef Villas to the pier. Figure 2 presents an overview of the Jenkins Way existing public beach access. Once transferred to all -wheel drive beach dumptrucks, the all -wheel drive dumptrucks will travel approximately 1.9 miles to the project site in front of the Topsail Reef Villas condominiums. Figures 3 and 4 present potential beach accesses at the Topsail Reef Villas. These would require additional coordination with the Topsail Reef Villas but these accesses would reduce beach driving and these potential accesses have little to no dune vegetation. Heavy equipment is shown at the Figure 4 potential access. Care would be needed to not disturb or damage the existing sandbags for these potential accesses. 4 Figure 3: Potential Access site on southern end of Topsail Reef Villa property. Some additional coordination with Topsail Reef Villas would be required. Figure 4: Another potential access at Topsail Reef Villas which heavy machinery already uses (this access between units 1 and 2 on the north end of the Villas). Some additional coordination with Topsail Reef Villas would be required. Pre -submittal Scoping Meeting An interagency pre -submittal scoping meeting was hosted by NCDEQ on September 13, 2021, to discuss the project prior to application submittal. • The project proponent (Fran Way of ATM) hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief. • The project proponent (Fran Way ofATM) hereby requests that the certifying authority review and take action on this CWA 401 certification request within the applicable reasonable period of time. Florence & Dorian FEMA Mitigation The Reach 1 template has qualified for FEMA Hurricane Dorian "Category G" damages of 15,007 cy. Therefore only a portion of the proposed total volume to be placed. The remaining volume will be financed by others (e.g., Town, State Grant, HOAs) Inlet Hazard Area (IHA) The project is currently partially within the current IHA while it is entirely within the "pending" IHA (yellow in Figure 5). No dune construction/rehabilitation is proposed for the project. LUUMUI I Figure 5: Current and pending IHAs in relation to the project area. Image from NC DCM ARCGIS website. Z Project Permit The DCM permit modification is for 79-10. This permit was most recently used for the 2020/2021 dune truck haul project. The proposed project will have no dune feature and only proposes to place sand on the upper, intertidal, and lower beach. Upland Sand Source Two upland sand mines have been identified for the proposed project. Both sand mines have successfully been used for Surf City and NTB truck haul projects and these mines are: 1. ST Wooten 2. 421 Sand Information on both sites is provided in the following sections. Both upland mines provide processed sand to mix for concrete, asphalt, and mortar. Processed sand is sand that is hydraulically dredged at the mine and run through a classifier. This sand is referred to as "washed and processed" as a result and is very uniform with very few fines and gravel. The clean and well sorted sand is essential for successful large-scale construction projects. This product is also ideal beach sand as a result of the washing and processing. Sand is dried via stockpiling/air drying at the mine prior to loading and trucking offsite. Similar to the previous permit modification, material will be screened at the borrow area prior to hauling to the project site. All material dredged for use on the beach will be screened with a %" screen at the sand mine site. Both sites have been contacted about the project and both sites have confirmed that they have enough material for the proposed project and that this is the same material that was used for previous Surf City and NTB dune projects. Both sites have ample volumes available for the proposed project (45,000 cy) even when accounting for the separate truck haul efforts (dune project, etc.) and other sand clients. However they do like to have some lead time (ideally a few months) to stockpile enough sand to keep up with production during active truck hauling. Sand Compatibility Table 3 presents summary compatibility for the native beach as well as the two sand mines. This data was sourced from the NTB 2009 EIS (for native beach characteristics) and the NTB and Surf City permit modification requests/projects (for the project sand). Additional sediment data from the recently placed sand haul projects is also available and can be provided upon request (although this data has been previously submitted to DCM during project construction). Both sand mines are compatible with native beach sand based on DCM sediment criteria thresholds. Sediment granulometric data is provided at the end of this document from both mines. 7 Table 3: Sediment compatibility summary Fine % Sand % Granular% Gravel% Calcium Mean (<0.0625 (0.0625 - (2.0 to 4.76 (4.76- Carbonate Site (mm) mm) 2.00 mm) mm) 76.0 mm) ST Wooten Mine 0.27 1.8 97.8 0.3 0.1 <1 421 Sand 0.41 0.0 98.9 1.1 0.0 0 NTB Native 0.23 1.5 97 1.07 0.43 26 NTB+CRC Threshold N/A 6.5 N/A 6.07 5.43 41 *N/A=not applicable (not a sediment criterion) Large Sediment and Shell Sampling: Note that large sediment and shell sampling occurred in October 2021 and that this data has been provided to DCM. Sand Availability Both ST Wooten and 421 Sand have significant sand available at their active mines. Greater than 2 million cubic yards (cy) is available at each mine. ATM staff have contacted both mines to ensure that existing mines have adequate material for the proposed project. Sand Mine Information Sand mine information for 421 Sand and ST Wooten is provided below. 421 Sand Mine The 421 Sand mine is located at 5401 Highway 421 in Wilmington, NC. Mr. Dennis Earp is the plant manager and can be reached at: Email: Dennis@421sand.com Office Phone: 910-409-7545 Cell Phone: 910-512-5971 www.421sand.com E-3 Figure 6 presents the location of the 412 Sand Mine. Figure 6: 421 Sand mine location A small Ellicott Dredge sits in the sand pit borrow area excavating material via cutter suction. Sand is initially screened by a 3/8" mesh and any material coarser than 3/8" is kicked out to a discard pile. Any material passing the initial screening is then classified in a tank where it is washed for fines and separated based upon grain size. The plant carries two main, screened sand sizes, 2S (asphalt and concrete sand) and 4S (mortar sand). TI Coastal's geotechnical lab has sampled 421 Sand on multiple occastion. The average grain size for the 2S sand was 0.5 mm and the 4S sand was 0.33 mm. The screening process effectively removed all large pebbles and stones as well as vegetative debris. Because the material is dredged and then washed in the sieving process, all fines (passing the 230 sieve or less than 0.0625 mm) have been removed from the final product. The onsite stockpiles consist of a mix of the 2S and 4S graded sands with a combined average grain size of 0.41 mm and 0.0% calcium carbonates. Munsell colors of the 421 Sand were 10YR 7/3 (wet) and 10YR 8/2 (dry) (source, TI Coastal). 9 ST WOOTEN The ST Wooten site is located at 226 Sutton Lake Road near Highway 140. Figure 7 presents the location of ST Wooten. Figure 7: ST Wooten location. ST WOOTEN CONTACT INFO: Brian Gurganus, Vice President S.T. Wooten Corporation P.O. Box 2408 3801 Black Creek Road Wilson, N.C. 27894 Phone: 252-291-5165 Brian@stwcorp.com www.stwcorp.com The ST Wooten sand processing is very similar to that of the 421 Sand site as both of these mines are in similar locations and serve the same clients and industries. Note that extensive geotechnical testing and gradation analyses were conducted to determine the Fineness Modulus (FM) of the material. 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