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HomeMy WebLinkAboutNCC233561_ESC Approval Submitted_20231201 `"` .Y0 NEW HANOVER COUNTY ` ENGINEERING , 2 J 230 Government Center Drive, Suite 160,Wilmington, NC 28403 t l 1, / P:(910)798-7139 j F:(910)798-7805 f NHCgov.com `'a«moo+R Tim Lowe,County Engineer October 25,2023 Corporation Service Company BVC Myrtle Grove, LLC 2626 Glenwood Avenue, Suite 550. 176 N. Main Street, Raleigh, North Carolina 27608 Florida, NY 10921 RE:Grading Permit#40-23,Village @ Myrtle Grove Retail Dear Sirs: This office has reviewed the erosion and sedimentation control plan.This project has permitted itself due to lack of a review within the time specified. Issuance of this land-disturbing permit with modifications requires additional information from the engineer as soon as possible.Please read the permit conditions carefully, return the signed color oriainal to our office and keep the copy for your records. A copy of the enclosed land-disturbing permit must be posted at the job site. This letter gives the notice required by GS 113A-61.1(a) and the New Hanover County Erosion and Sedimentation Control Ordinance Article VIII Section 8.21 of our right of periodic inspection to ensure compliance with the approved plan. As of April 1, 2019, all new construction activities are required to complete and submit an electronic Notice of Intent (eN01) form requesting a Certificate of Coverage (COC) under the NCG010000 Construction General Permit. After the form is reviewed and found to be complete,you will receive a link with payment instructions for the applicable annual permit fee. After the fee is processed, you will receive the COC via email. As the Financially Responsible Party shown on the FRO form submitted for this project,you MUST obtain the COC prior to commencement of any land disturbing activity. The eN01 form and fee details may be accessed at deq.nc.gov/NCG01. Please direct questions about the eNOl form to the Stormwater Program staff in the Raleigh central office. If the owner/operator of this project changes in the future,the new responsible party must obtain a new COC. A copy of the enclosed land-disturbing permit, a copy of the approved erosion and sedimentation control plan as well as any approved deviations, records of inspections made during the previous 12 months with the States Certificate of Compliance (COC) number on the report, and a rain gauge must be posted at the job site as required by 15A NCAC 4B .0118(a), the NCGO1 permit, and the New Hanover County Erosion and Sedimentation Control Ordinance Article VIII Section 8.19(o). The land disturbing fee of 53627 is due to be paid to New Hanover County Engineering prior to Issuance of the Certificate of Occupancy or Certificate of Completion. Page 2 of 2 A preconstruction meeting is optional prior to land-disturbing activity on this project. Please contact me at(910) 798-7139 if you would like to schedule this meeting in our office. If you choose not to have a preconstruction meeting,you must contact us with the date the land-disturbing activity will take place onsite and again once the initial erosion control measures are installed. New Hanover County's Erosion and Sedimentation Control Program is performance-oriented, requiring protection of existing natural resources and adjoining properties. If,following the commencement of this project, it is determined that the erosion and sedimentation control plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statutes 113A- 51 through 66), and the New Hanover County Erosion and Sedimentation Control Ordinance Article VIII Section 8.19 (f), this office may require revisions to the plan and its implementation of the revisions to ensure compliance with the Act and Ordinance. This land-disturbing permit will expire within 1 year following the date of approval, if no land-disturbing activity has been undertaken,as required by the New Hanover County Erosion and Sedimentation Control Ordinance Article VIII Section 8.18 (d). If no activity takes place within one year after work has begun onsite,the permit will expire. Please contact this office to reactivate a permit that has expired. Acceptance and approval of this erosion control plan is conditioned upon your compliance with Federal and State water quality laws, regulations and rules and local city or county ordinances or rules. This land-disturbing permit approval does not supersede any other permits or approvals. It is the owner's responsibility to have all the permits and approvals that are required, prior to beginning construction. Please note this approval is based in part on the accuracy of the information provided in the Financially Responsibility Form,which you provided.You are required to file an amended form if there is any change in the information included on the form. Your cooperation is appreciated, Beth Easley Wetherill CPESC Erosion Control Supervisor Enclosures: Land-Disturbing Permit NCG01 Fact Sheet and Self Inspection & Monitoring Form cc: Robert Balland PE, Paramounte Engineering, Inc. Robert Farrell Senior Planner, NHC Planning& Land Use .-,. ... 0 NTy.„ -4 ' f, _ ����,, a Permit GP#40-23 f� Revision to GP 52-06 .\ y� ��� ,/� LNDP 23-00050 „0.13• Permit for a Land-Disturbing Activity New Hanover County Department of Engineering 230 Government Center Drive-Suite 160 Wilmington, North Carolina 28403 (910) 798-7139 As authorized by the New Hanover County Erosion and Sedimentation Control Ordinance This permit issued to Corporation Service Company authorizes the development of 12.09 acres of land at 5613 Carolina Beach Road for Village @ Myrtle Grove Retail in New Hanover County with modifications and requires additional information from the engineer. The permit issued on October 25, 2023, is subject to compliance with the application and site drawings, all applicable regulations and special conditions and notes set forth below. Any plan modifications must be approved by this office prior to field changes. it is understood by the applicant that a representative of New Hanover County's Engineering Department may inspect the site at any time following the issuance of this Permit. A copy of the approved Soil Erosion Control Plan as well as any approved deviations, this permit, a rain gauge, the Certificate of Coverage (COC) number from the State and copies of the Combined Self-Monitoring and Self-Inspection Reports must be available at all times at the site. Failure to execute the provisions of this permit and the approved Soil Erosion Plan, or any other provisions of the New Hanover County Soil Erosion and Sedimentation Control Ordinance, may result in immediate legal action by the County to the limits prescribed by the Ordinance. If the measures outlined on the approved Soil Erosion Control Plan and this Permit prove insufficient, additional Erosion Control measures can and will be required which in turn will be considered provisions of this Permit. This Permit does not preclude any other permits or approvals necessary for beginning or completing this development. Approval of an erosion control plan is conditioned on the applicant's compliance with Federal and State laws, regulations, and rules. It is the Permittee's responsibility to obtain all necessary permits and approvals and to ensure the information given for this permit is accurate and updated if ownership or the financially responsible party changes. SPECIAL CONDITIONS (THESE CONDITIONS MUST BE FOLLOWED IN ADDITION TO THE PLANS AND SPECIFICATIONS) *AII the soil erosion control measures will be installed as the site is cleared and maintained throughout construction. These include construction entrances, silt fences, 2 types of inlet protection and any pumping must be done using a dewatering dirt bag with the addition of polyacrylamide in the event turbid discharge takes place. Note: Additional information is required from the engineer as soon as possible. Silt fences must be 8 feet apart with wire backing and a dewatering dirt bag detail and maintenance have been included for use until plans have been revised and approved. *Note the required separate NCGO1 permit that requires concrete washouts and other NCGO1 regulations. *In issuing this permit New Hanover County has relied on the representations of the permit applicant. The County has no jurisdiction to determine any contested property rights or ownership. *Tree Removal Permits and/or Approvals are required from the City of Wilmington and/or New Hanover County PRIOR to clearing of the site. (Continued) - Page Two Permit GP#40-23 Revision to GP 52-06 LNDP 23-00050 *Silt fence stakes must be steel and will be placed six feet apart without wire reinforcement or eight feet apart with wire reinforcement. Silt fence is not allowed as inlet protection. *This permit does not preclude any permits or approvals which may be necessary such as City of Wilmington or New Hanover County, NC DEMLR, C.A.M.A., and/or the US Army Corps. of Engineers, DEM Solid Waste or any other agencies or approvals that may be necessary. *No sediment shall leave the site in suspension of water. *If plan revisions are necessary, you must submit a copy to this office for approval prior to any field changes. *If soil is brought onto this site or removed from this site, it must come from or be taken to an approved or permitted site, to be identified to this office prior to being brought onsite or removal from the site. *All City and/or County and State drainage and stormwater requirements will be adhered to. *If these measures fail to adequately control erosion, more restrictive measures will be required. *If any phase of grading ceases for more than 90 calendar days, the site will be temporarily stabilized. *All slopes must be stabilized within 21 calendar days of any phase of activity. The approval of an erosion control plan is conditioned on the applicant's compliance with Federal and State Water Quality laws, regulations, and rules. *Note the required rates for seed, lime,fertilizer, and mulch in your seeding specifications. *Enclosed is a Combined Self-Monitoring and Self-Inspection Form that meets the requirements of both the NPDES Stormwater Permit for Construction Activities, NCG 010000 reporting and the Land Resources Self- Inspection Program that satisfies the requirements of the Sedimentation Pollution Control Act.These are mentioned below with specific requirements for each program. These reports are the responsibility of the property owner.They require a rain gauge onsite, inspections and reporting every 7 calendar days and within 24 hours of every 1.0-inch rain per 24-hour period and at specific phases of construction. Additional copies of this Combined Construction Inspection Report can be found at https://www.deq.nc.gov/about/divisions/energy- mineral-and-land-resources/erosion-and-sediment-control-and-sediment-control-forms . Reports must be available onsite at all times. If you have questions, please contact New Hanover County Engineering (910)798- 7139 or the Land Quality Section at the NC DEMLR Regional office at (910) 796-7215. *Note the NPDES information from the State for sites disturbing 1 acre or more and the reporting requirements. All NEW projects permitted after August 3, 2011, must include the following surface water withdrawal locations and stabilization requirement designations on the plan in order to qualify for coverage under the most recent NPDES Construction General Permit. All settling basins must have outlet structures that withdraw water from the surface, with the exception of basins or traps that have a drainage area of less than 1 acre. The NPDES permit also requires ground cover within 14 calendar days on disturbed flat areas and ground cover within 7 calendar days on all areas within HQW Zones, perimeter dikes, swales, ditches, perimeter slopes and all slopes steeper than 3:1. Exceptions include slopes that are 10 feet or less in length and not steeper than 2:1 which must be stabilized within 14 calendar days and slopes greater than 50 feet which must be stabilized within 7 calendar days. It requires inspections of all erosion control measures and reporting every 7 days and within 24 hours of every 1.0-inch rain event in a 24-hour period. This permit also includes other new requirements which are listed in the text of the NPDES Stormwater Discharge Permit for Construction Activities and are included with the original copy of each land-disturbing permit. (Continued) - Page Three Permit GP#40-23 Revision to GP 52-06 LNDP 23-00050 *AII construction activities are required to complete and submit an electronic Notice of Intent (eNOI) form requesting a Certificate of Coverage (COC) under the NCG010000 Construction General Permit.The COC must be obtained prior to the commencement of any land-disturbing activity on the above-named Project, according to State Stormwater requirements. The NOI form may be accessed at. The NOI form may be accessed at .ittps:iiedocs.deu.nc.r-ov:FormsiNCG01-NC Please direct questions about the NOI form to Paul Clark at Paul.clark@ncdenr.gov. After you submit a complete and correct NOI form, you will receive a link with payment instructions for the $100 annual permit fee. After the fee is received you will receive the COC via email. The $100 fee will be charged annually until the project receives a final land-disturbance inspection. Once the project is stabilized and receives the final land-disturbance inspection, you should file a Notice of Termination (NOT) with the State to final out the project. *Note the Land Resources Self Inspection Program Requirements.This program is separate from the NPDES reporting and requires inspection and documentation after each phase of construction.These phases include: Installation of perimeter erosion control measures, Clearing and Grubbing of existing ground cover, Completion of any phase of grading of slopes or fills, Installation of storm drainage facilities, Completion of construction or development, Establishment of permanent ground cover sufficient to restrain erosion and any Deviation from the approved plan. *Pre-construction meetings are optional. Contact Beth E. Wetherill at (910) 798-7139 to set up a meeting prior to land-disturbing activity onsite. If you do not choose to have a preconstruction meeting prior to starting work on site, you should contact us when activity begins and again when the initial measures have been installed. This Permit will expire one year from date of issue Acknowledgment of receipt of Permit if no construction activity begins on site. This permit may not be amended or transferred to another party without approval of this office. Owner ( l) - By (please print) Beth E. Wetherill CPESC Erosion Control Supervisor Signature Supplemental Technical Specification for DEWATERING BAGS oil Doti- 13c/. SCDOT Designation: SC-M-815-15 (11(11) U 1.0 Dewatering Bags 1.1 Description Use Dewatering Bags for dewatering operations that do not discharge to sediment dams or sediment basins. Dewatering Bags are fabricated from non-woven geotextile materials that filter sediment-laden water from dewatering operations. Sediment laden water is pumped into the non-woven geotextile fabric bag that allows filtered water to pass through. 1.2 Materials Use Dewatering Bags composed of a UV resistant, non-woven geotextile sewn into a completely enclosed bag.Use Dewatering Bags sewn with high strength double stitched seams. Use Dewatering Bags that have a sewn-in sleeve to receive the pump discharge hose. Select Dewatering Bags in accordance with Tables 1 and 2. The required structural integrity and flow rate of the Dewatering Bag is dependent upon soil type in the dewatering area.Use Table 1 to determine the Dewatering Bag type needed for a given soil classification. Table 1: Dewatering Bag Type Selection Dewatering Bag Type• .Soil Classification Lower State •UPper State Type I X NA Type II NA X After determining the bag typed needed,use Dewatering Bags with the properties identified in Table 2. Table 2: Dewatering Bag Required Properties Property .Test Method. Tye. I Value.'" Type II Value Weight(oz/ydz)(typical) ASTM D5261 8 oz 10 oz Grab Tensile Strength(MD) ASTM D4632 200 lbs 250 lbs Mullen Burst ASTM D3786 350 psi 350 psi UV Resistance ASTM D4355 70%a 500 hrs 70%_2 500 hrs Flow Rate(Gal/Min/Ft2) ASTM D4491 80 70 Filtering Efficiency - ASTM D5 1 41 80% 80% All properties are minimum average roll values(MARV). 1.2.1 Quality Assurance Provide Dewatering Bags listed on the most recent edition of SCDOT Qualified Product List 80, in the appropriate category. At the time of delivery, provide the RCE with the Dewatering Bag packing list containing complete identification, including but not limited to the following: • Manufacturer's name and location. • Manufacturer's telephone number and fax number. August 8, 2011 Page 1 • Manufacturer's e-mail address and web address. • Dewatering Bag name, model, and/or serial number. • Dewatering Bag dimensions. • Certification that the Dewatering Bag meets the physical and performance criteria of this specification. 1.3 Construction Requirements 1.3.1 Equipment Ensure that the equipment necessary for the proper installation of the work is on site,in acceptable working condition, and approved by the RCE as to both type and condition before the start of work. Provide sufficient equipment to enable prosecution of the work in accordance with the project schedule and completion of the work in the specified time. 1.3.2 Site Assessment Assess the proposed site by considering potential water quality impacts and methods to minimize potential impacts from the following site characteristics: • Potential contaminates in the water to be filtered. Note any odor, discoloration, oil sheen, or other notable conditions. Contact SCDHEC Land & Waste Emergency Response if a hazardous spill is suspected. • Location of the discharge from the Dewatering Bag. • Transport method and distance to nearest receiving waters. When practical, select dewatering locations that are not in close proximity to receiving surface waters. Select locations with a sufficient permeable buffer to allow natural infiltration instead of discharging to receiving surface waters. Do not place Dewatering Bags directly in jurisdictional waters of the state. 1.3.3 Dewatering Bag Selection Use the following steps to select an appropriately sized Dewatering Bag. Consult with the RCE to select Dewatering Bag size if insufficient information is known about the site conditions. 1. Determine the peak flow rate generated from the dewatering pump in gallons per minute. 2. Determine the peak flow rate through the Dewatering Bag in gallons per minute based on the Dewatering Bag peak flow rate and the total surface area provided by the manufacturer. 3. Select a Dewatering Bag that passes a minimum of two times the peak flow rate generated from the dewatering pump as determined in Step 1 to account for a 50%clogging factor. 1.3.4 Installation Install the Dewatering Bag on a mild slope to ensure incoming water flows downhill through the Dewatering Bag. Secure the hose to bag connection using a heavy duty pipe clamp,rope, or other suitable means to prevent leakage. When using a rope to attach the pump hose to the Dewatering Bag, make a minimum of 6 wraps around the hose over a 6-inch width of the bag and fasten with a secure rope knot. The bottom area of Dewatering Bags will not allow flow to pass through when the bag is placed on a low- permeable or impermeable surface. Place the Dewatering Bag on an aggregate, hay bales, or other highly permeable surface to maximize water flow through the entire surface area of the bag. Monitor the Dewatering Bag at all times while the pump is running. While monitoring, ensure the hose to bag connection is secure with only minimal leaking. Check for flow permeating from the bottom surface of the Dewatering Bag. If flow appears restricted,move bag to a surface with higher permeability. , August 8,2011 Page 2 Use the following guidelines and any specific guidelines provided by the manufacturer for Dewatering Bag installations. • Transport and place Dewatering Bags with care to prevent ripping or tearing the fabric. • Avoid installing on steep slopes as the bag may roll,causing failure. • Insert the discharge hose a minimum of 1-foot inside the Dewatering Bag. • Do not insert more than one discharge hose into the Dewatering Bag. • Avoid use of excessive flow rates or overfilling the Dewatering Bag.This may cause the bag to rupture or cause failure to the hose to bag connection. 1.3.5 Removal Dispose of the Dewatering Bag as directed by the RCE. If allowed, the Dewatering Bag may be cut open and the contents seeded after removing the fabric. Securely tie off the pump hose connection sleeve when transporting full Dewatering Bags for disposal . Do not clean and reuse a Dewatering Bag after the voids are clogged with trapped sediment. 1.3.6 Inspection and Maintenance Follow all manufacturer recommendations for inspection and maintenance guidelines. Replace Dewatering Bags when trapped sediment has accumulated to 50% of the bag capacity or in accordance with the manufacturer's recommendations. Dewatering Bags are full when they no longer efficiently filter sediment or pass water at a reasonable rate. Incoming flow rates will vary depending on the size of the Dewatering Bag, the type and amount of sediment discharged into the Dewatering Bag,the permeability of the underlying aggregate,and the degree of slope on which the bag lies. 1.3.7 Acceptance Obtain RCE acceptance and approval of Dewatering Bag installations. When requested by the RCE,ensure that a manufacturer's representative is on-site to oversee and approve the initial installation of Dewatering Bag operations. Obtain a letter from the manufacturer approving the installation when requested by the RCE. 1.4 Measurement The quantity for the pay item Dewatering Bag is measured by each(EA) furnished and installed,complete, and accepted. No measurement is made for the dewatering pumping operations and maintenance as this work is considered incidental to the Dewatering Bag installation, and no separate measurement is made. When Dewatering Bags are replaced,only replacement Dewatering Bags are paid for. 1.5 Payment Payment for Dewatering Bags is full compensation for installing the Dewatering Bag as specified or directed and includes furnishing, installing, maintaining, inspecting, removing, and disposing of the Dewatering Bag; providing, installing and operating pumps for Dewatering operations; providing documentation of Quality Control and Quality Assurance programs; and all other materials, labor, equipment, tools, supplies, transportation, and incidentals necessary to fulfill the requirements of the pay item in accordance with the Plans,Specifications,and other terms of the Contract. 8153801 Dewatering Bag Each August 8, 2011 Page 3