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HomeMy WebLinkAboutSW8990224_HISTORICAL FILE_20190611STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO SW8 qq 02 -LLA DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2q 0�p 1 I YYYYMMDD ROY COOPER Governor MiCHAEL S REGAN secretary S DANIEL SMITH Intertm Dveclnr June 11, 2019 NORTH CAROLINA Environmental QuaUty JTM Development, Inc Arm J T Mddenberg, President 106 Live Oak Lane Wilmington, NC 28411 Subject State Stormwater Management Permit No SW8 990224 Sentry Self Storage High Density Project Brunswick County Dear Mr Mildenberg The Wilmington Regional Office received a complete, modified State Stormwater Management Permit Application for the subject project on June 7, 2019 Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 effective January 1, 2017 We are forwarding modified Permit No SW8 990224 dated June 11, 2019, for the construction, operation and maintenance of the stormwater control measures (SCMs), built -upon areas, as well as the stormwater collection system and/or vegetated conveyance system associated with the subject project Please replace the previously approved plan sheets with the attached modified and approved versions Please replace the previous application (SWU-101), Wet Pond supplements, and Operation and Maintenance Agreements with the attached modified versions This permit shall be effective from the date of issuance until August 14, 2021 and shall be subject to the conditions and limitations as specified therein, and does not supersede any other agency permit that may be required Please pay special attention to the permit conditions regarding the operation and maintenance of the SCMs, stormwater collection system, and/or vegetated conveyances, the limitation of built -upon area, modification of the project, the procedures for changing ownership of and/or transferring the permit, and the need to renew the permit Please also pay attention to the permit conditions that requires the recordation of deed restrictions and protective covenants, easements, and the maintenance agreement, which must all be provided along with certification upon completion of the project Failure to comply with these requirements will result in future compliance problems Please refer to Attachment C for a detailed description of the current proposed major modification and a list of all the past modifications approved during the effective period of the permit If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH) The written petition must conform to Chapter 150B of the North Carolina General Statutes and must be filed with the OA14 within thirty (30) days of receipt of this permit You should contact the OAH with all questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at www NCOAH com Unless such demands are made this permit shall be final and binding If you have any questions, or need additional information concerning this matter, please contact Garrett Zorda in the Wilmington Regional Office, at (910) 796-7215 or via email at garrett zorda@ncdenr gov Sincetely, 3 S Daniel Smith, Interim Director Division of Energy, Mineral and Land Resources Enclosures Attachment A — Certification Fortes Attachment C — Permitting History Application Documents North Carolina Department of Environmental Quality I Division of Energy Mineral and Land Resources Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405 9107967215 State Stormwater Permit No S W8 990224 Page 2 of 2 GDS/gdz %Sto mwater\Per¢uts & Projects\ 1999\990224 HDUO19 06 permit 990224 cc 1 Christian Russell PE, East Coast Engineering & Surveying Brunswick County Engineering Wilmington Regional Office Stormwater File State Stormwater Management Permit No SW8 990224 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO JTM Development, Inc Sentry Self Storage 4711 Southport -Supply Road, Bolivia, Brunswick County FOR THE construction, operation and maintenance of three (3) wet detention ponds ("stormwater control measures' or "SCMs") in compliance with the provisions of Title 15A NCAC 2H 1000 effective January 1, 2017 (the "stormwater rules") and the approved stormwater management plans, application, supplement(s), specifications, and other supporting data (the "approved plans and specifications") as attached and/or on file with and approved by the Division of Energy, Mineral and Land Resources (the "Division" or "DEMLR") and considered an enforceable part of this permit This permit shall be effective from the date of issuance until August 14, 2021 and shall be subject to the following specified conditions and limitations I DESIGN STANDARDS This permit is effective only with respect to the management and volume of stormwater described in the approved plans and specifications The maximum amount of built -upon area (BUA) allowed for the entire project is 644,722 square feet The drainage area(s) for the on -site stormwater system(s) will be limited to the amount(s) of built -upon area indicated in this permit and the approved plans and specifications The runoff from all built -upon area within the permitted drainage area(s) of this project must be directed into the permitted stormwater control measure(s) The stormwater control measures labeled Drainage Area #1, Drainage Area #2, and Drainage Area #3 have been designed using the runoff treatment method to handle the runoff from 408,555, 141,233, and 94,934 square feet of built -upon area, respectively The built -upon area for future development within the drainage areas labeled Drainage Area #1, Drainage Area #2, and Drainage Area #3 is limited to 15849, 0, and 5,000 square feet, respectively 3 A 50-foot wide vegetative setback must be provided and maintained adjacent to all surface waters, measured horizontally from the normal pool elevation of impounded structures, from the top of bank of each side of streams or rivers, and from the mean high waterline of tidal waters, perpendicular to the shoreline in accordance with the stormwater rules and the approved plans and specifications 4 BUA may not be added to the vegetated setback except as shown on the approved plans or in the following instances where the BUA has been minimized and channelizing runoff from the BUA is avoided i Water dependent structures, and u Minimal footprint uses such as poles, signs, utility appurtenances, and security lights that cannot practically be located elsewhere Page 1 of 4 State Stormwater Management Permit No SW8 990224 The stormwater control measure(s) is(are) permitted based on the design criteria presented in the sealed, signed and dated supplement(s) and as shown in the approved plans and specifications This (These) stormwater control measure(s) must be provided and maintained at the design condition The approved supplement(s) is(are) incorporated by reference into this permit The peak flow from the 10-year storm event shall not cause erosion downslope of the stormwater outlet discharge point Decorative spray fountains will be allowed in the stormwater treatment system if documentation is provided demonstrating that the proposed fountain will not cause resuspension of sediment within the pond or cause erosion of the pond side slopes When using a wet pond for irrigation, it is recommended that some water be maintained in the permanent pool, the vegetated shelf is planted with appropriate species that can handle fluctuating conditions, and human health issues are addressed 9 The SCM landscape planting plan shown in the approved plans shall be followed in its entirety during construction After the plants are established, the operation and maintenance agreement must be followed II SCHEDULE OF COMPLIANCE 1 The project and SCM(s) shall be constructed, operated and maintained in accordance with the conditions of this permit and the approved plans and specifications 2 The on -site stormwater system shall be entirely constructed, vegetated, and operational prior to the construction of any development within the drainage area, per the approved plans and specifications 3 During construction, erosion shall be kept to a minimum and any eroded areas of the on -site stormwater system will be repaired immediately If the stormwater system is used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility 4 All stormwater control measures, stormwater collection systems, vegetated conveyance systems, and/or maintenance accesses must be located in public rights -of -way, dedicated common areas that extend to the nearest public right-of-way, and/or permanent recorded easements that extend to the nearest public right-of-way for the purpose of inspection, operation, maintenance, and repair 5 The permittee shall provide and perform the operation and maintenance necessary, as listed in the signed Operation and Maintenance Agreement, to assure that all components of the permitted on -site stormwater system functions at the approved design condition The approved Operation and Maintenance Agreement is incorporated by reference into this permit and must be followed in its entirety and maintenance must occur at the scheduled intervals 6 The operation and maintenance agreement must be recorded with the Office of the Register of Deeds 7 Records of maintenance activities must be kept and made available upon request to authorized personnel of the Division The records will indicate the date, activity, name of person performing the work and what actions were taken 8 The final plats for the project must be recorded with the Office of the Register of Deeds The recorded plat must reference the Operation and Maintenance Agreement and must also show all public rights -of -way, dedicated common areas, and/or permanent drainage easements, in accordance with the approved plans 9 The permittee is responsible for verifying that the proposed built -upon area for the entire protect does not exceed the maximum allowed by this permit Page 2 of 4 State Stormwater Management Permit No SW8 990224 10 Upon completion of the project, the permittee shall determine whether or not the protect is in compliance with the permitted plans and take the necessary following actions a If the permittee determines that the project is in compliance with the permitted plans, then within 45 days of completion, the permittee shall submit to the Division one hard copy and one electronic copy of the following i The completed and signed Designer's Certification provided in Attachment A noting any deviations from the approved plans and specifications Deviations may require approval from the Division, u A copy of the recorded maintenance agreement, ui Unless already provided, a copy of the recorded deed restrictions and protective covenants, and IV A copy of the recorded plat delineating the public rights -of -way, dedicated common areas and/or permanent recorded easements, when applicable b If the permittee determines that the project is not in compliance with the permitted plans, the permittee shall submit an application to modify the permit within 30 days of completion of the project or provide a plan of action, with a timeline, to bring the site into compliance 11 No person or entity, including the permittee, shall alter any component shown in the approved plans and specifications Prior to the construction of any modification to the approved plans, the permittee shall submit to the Director, and shall have received approval for modified plans, specifications, and calculations including, but not limited to, those listed below For changes to the project or SCM that impact the certifications, a new or updated certification(s), as applicable, will be required and a copy must be submitted to the appropriate DEQ regional office upon completion of the modification a Any modification to the approved plans and specifications, regardless of size including the stormwater control measures, built -upon area, details, etc b Redesign or addition to the approved amount of built -upon area or to the drainage area c Further development, subdivision, acquisition, lease or sale of any, all or part of the protect area as reported in the approved plans and specifications d Altering, modifying, removing, relocating, redirecting, regrading or resizing of any component of the approved stormwater control measure, stormwater collection system and/or vegetative conveyance system shown on the approved plan e The construction of any allocated future BUA f The construction of any permeable pavement, #57 stone area, public trails, or landscaping material to be considered a permeable surface that were not included in the approved plans and specifications g Other modifications as determined by the Director 12 The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements The permittee shall provide copies of modified plans and certification in writing to the Director that the changes have been made 13 Prior to transfer of the permit, a file review and site inspection will be conducted by Division personnel to ensure the permit conditions have been met and that the protect and the on -site stormwater system complies with the permit conditions Any items not in compliance must be repaired, replaced restored, or resolved prior to the transfer Records of maintenance activities performed to date may be requested III GENERAL CONDITIONS 1 Any individual or entity found to be in noncompliance with the provisions of a stormwater management permit or the requirements of the stormwater rules is subject to enforcement procedures as set forth in NCGS 143 Article 21 The issuance of this permit does not preclude the permittee from complying with and obtaining any other permits or approvals that are required for this development to take place, as required by any statutes, rules, regulations, or ordinances, which may be imposed by any other Local, State or Federal government agency having jurisdiction Any activities undertaken at this site that cause a water quality violation or undertaken prior to receipt of the necessary permits or approvals to do so are considered violations of NCGS 143-215 1, and subject to enforcement procedures pursuant to NCGS 143-215 6 Page 3 of 4 State Stormwater Management Permit No SW8 990224 3 If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective actions This includes actions required by this Division and the stormwater rules such as the construction of additional or replacement on -site stormwater systems These additional or replacement measures shall receive a permit from the Division prior to construction 4 Permit Transfer This permit is not transferable to any person or entity except after notice to and approval by the Director The permittee shall submit a completed and signed "Permit Transfer Application Form" (available on the Division website) accompanied by the required fee and supporting documentation as listed on the form, to the Division at least 60 days prior to any one or more of the following events a The sale or conveyance of the project area in whole or in part, except in the case of an individual lot sale that is made subject to the recorded deed restrictions and protective covenants, b Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or NCGS 57D-6-07 and 08, c Bankruptcy, d Foreclosure, subject to the requirements of Session Law 2013-121, 5 Current Permittee Name or Address Changes The permittee shall submit a completed "Permit Information Update Application Form" (available on the Division website) to the Division within 30 days to making any one or more of the following changes a A name change of the current permittee, b A name change of the protect, c A mailing address change of the permittee, 6 The permittee is responsible for compliance with all terms and conditions of this permit until the Division approves the transfer request Neither the sale of the protect, in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the permit 7 The permittee grants Division Staff permission to enter the property during normal business hours to inspect all components of the permitted protect 8 The permit issued shall continue in force and effect until the permittee files a request with the Division for a permit modification, transfer, renewal, or rescission, however, these actions do not stay any permit conditions 9 Approved plans, application documents, supplements, calculations, operation and maintenance agreement, and specifications for this protect are incorporated by reference and are enforceable parts of the permit A copy of this permit, application, supplements, operation and maintenance agreement, and approved plans and specifications shall be maintained on file by the permittee 10 Unless specified elsewhere, permanent seeding requirements for the on -site stormwater system must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual 11 The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the laws, rules, and regulations contained in Title 15A NCAC 2H 1000 and NCGS 143-215 1 et al 12 A permit renewal request must be submitted at least 180 days prior to the expiration date of this permit The renewal request must include the appropriate application, documentation and the processing fee as outlined in Title 15A NCAC 02H 1045(3) Permit modified and reissued this the 111 day of June 2019 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Daniel gmith, Interim Director Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Permit Number SW8 990224 Page 4 of 4 State Stormwater Management Permit No SWB 990224 Attachment A Certification Forms The following blank Designer Certification forms are included and specific for this project • As -Built Permittee Certification • As -Built Designer's Certification General MDC • As -Built Designer's Certification for Wet Detention Pond Project A separate certification is required for each SCM These blank certification forms may be copied and used, as needed, for each SCM and/or as a partial certification to address a section or phase of the project Page 1 of 1 State Stormwater Management Permit No SW8 990224 AS -BUILT PERMITTEE CERTIFICATION I hereby state that I am the current permittee for the project named above, and I certify by my signature below, that the protect meets the below listed Final Submittal Requirements found in NCAC 02H 1042(4) and the terms, conditions and provisions listed in the permit documents, plans and specifications on file with or provided to the Division eCheck here if this is a partial certification Section/phase/SCM #?. Check here if this is part of a Fast Track As -built Package Submittal Printed Signatu I, , a Notary Public in the State of County of do hereby certify that personally appeared before me this day of 20 and acknowledge the due execution of this as -built certification (SEAL) Witness my hand and official seal My commission expires Permlttee's Certification NCAC 1042(4) COP�d� d f N/A A. DEED RESTRICTIONS / BUA RECORDS 1 The deed restrictions and protective covenants have been recorded Y or N and contain the necessary language to ensure that the project is maintained consistent with the stormwater regulations and with the permit conditions 2 A copy of the recorded deed restrictions and protective covenants Y or N has been provided to the Division 3 Records which track the BUA on each lot are being kept (See Note Y or N 1 B. MAINTENANCE ACCESS W 1 The SCMs are accessible for inspection, maintenance and repair Y or N 2 The access is a minimum of 10 feet wide Y or N 3 The access extends to the nearest public right-of-way Y or N C. EASEMENTS 11 1 The SCMs and the components of the runoff collection / conveyance Y N system are located in recorded drainage easements or 2 A copy of the recorded plat(s) is provided Y or N D SINGLE FAMILY RESIDENTIAL LOTS - Plats for residential lots that Y N have an SCM Include the followln or 1 The specific location of the SCM on the lot Y or N 2 A typical detail for the SCM Y or N 3 A note that the SCM is required to meet stormwater regulations and that the lot owner is subject to enforcement action as set forth in Y N NCGS 143 Article 21 if the SCM is removed, relocated or altered or without prior approval E. OPERATION AND MAINTENANCE AGREEMENT Y or N 1 The O&M Agreement is referenced on the final recorded plat Y or N 2 The O&M Agreement is recorded with the Register of Deeds and Y N appears in the chain of title or Page 1 of 6 State Stormwater Management Permit No SW8 990224 F. OPERATION AND MAINTENANCE PLAN — maintenance records are being kept In a known set location for each SCM and are available for Y or N review G. DESIGNER'S CERTIFICATION FORM — has been provided to the Y N Division 11 or Note1- Acceptable records include ARC approvals, as -built surveys, and county tax records Provide an explanation for every requirement that was not met, and for every "N/A" below Attach additional sheets as needed Page 2 of 6 State Stormwater Management Permit No SW8 990224 AS -BUILT DESIGNER'S CERTIFICATION GENERAL MDC I hereby state that I am a licensed professional and I certify by my signature and seal below, that I have observed the construction of the protect named above to the best of my abilities with all due care and diligence, and that the project meets the below listed General MDC found in NCAC 02H 1050 in accordance with the permit documents, plans and specifications on file with or provided to the Division, except as noted on the "AS -BUILT" drawings, such that the intent of the stormwater rules and statutes has been preserved Check here if this is a partial certification Section/phase/SCM #? Check here if this is a part of a Fast -Track As -Built Package Submittal per 1044(3) Check here if the designer did not observe the construction, but is certifying the protect Check here if pictures of the SCM are provided Printed Name Signatu NC Registration SEAL City/State/ZIP Phone Number Consultant's Email address Consultant's Mailing Address OO Circle N if the as -built value differs from the Plan If N is circled, provide an explanation on Page 2 OO N/E = not evaluated (provide explanation on page 2) OO N/A = not applicable to this SCM or protect Consultant's Certification NCAC 1003((3) & General MDC OO AS -built ON/E ®N/A 1050 TREATMENT REQUIREMENTS 1 The SCM achieves runoff treatment Y or N 2 The SCM achieves runoff volume match Y or N 3 Runoff from offsite areas and/or existing BUA is Y or N bypassed 4 Runoff from offsite areas and/or existing BUA is directed Y or N into the permitted SCM and is accounted for at the full build -out potential 5 The protect controls runoff through an offsite permitted Y or N SCM that meets the requirements of the MDC 6 The net area of new BUA increase for an existing protect Y or N has been accounted for at the appropriate design storm level 7 The SCM(s) meets all the specific minimum design Y or N criteria B VEGETATED SETBACKS / BUA Y Page 3 of 6 State Stormwater Management Permit No SW8 990224 1 The width of the vegetated setback has been measured Y or N from the normal pool of impounded waters, the MHW line of tidal waters, or the top of bank of each side of rivers or streams 2 The vegetated setback is maintained in grass or other Y or N vegetation 3 BUA that meets the requirements of NCGS 143-214 7 Y or N b2 2 is located in the setback 4 BUA that does not meet the requirements of NCGS 143- Y or N 214 7 (b2)(2) is located within the setback and is limited to a Publicly funded linear projects (road, greenway sidewalk) b Water -dependent structures c Minimal footprint uses (utility poles, signs, security lighting and appurtenances) 5 Stormwater that is not treated in an SCM is released at Y or N the edge of the setback and allowed to flow through the setback as dispersed flow OO As -built OWE ON/A C STORMWATER OUTLETS —the outlet handles the peak Y N flow from the 10 year storm with no downslo erosion or D VARIATIONS 1 A variation (alternative) from the stormwater rule Y N provisions has been implemented or 2 The variation provides equal or better stormwater control Y N and equal o"be r rotec'ton of surface waters or E. C MPLIANCE THER REGULATORY PR S Y N has been met it or F SIZING -the volume of the SCM takes the runoff from all surfaces into account and is sufficient to handle the required Y or N storm depth G CONTAMINATED SOILS — infiltrating SCM's are not ; Y or N located in or on areas with contaminated sods H. SIDE SLOPES 1 Vegetated side slopes are no steeper than 3H 1V Y or N 2 Side slopes include retaining walls, gabion walls, or Y or N other surfaces that are steeper than 3H 1 V 3 Vegetated side slopes are steeper than 3H 1V (provide Y or N supporting documents for soils and ve etation I. EROSION PROTECTION 11 1 The inlets do not cause erosion in the SCM Y or N 2 The outlet does not cause erosion downslope of the Y or N discharge point during the peak flow from the 10 year storm J. EXCESS FLOWS —An overflow / bypass has been Y N provided or K. DEWATERING —A method to drawdown standing water has Y or N been provided to facilitate maintenance and inspection L. CLEANOUT AFTER CONSTRUCTION — the SCM has been Y or N cleaned out and converted to its approved design state M. MAINTENANCE ACCESS 1 The SCM is accessible for maintenance and repair Y or N 2 The access does not include lateral or incline slopes Y or N >3 1 N. DESIGNER QUALIFICATIONS (FAST -TRACK PERMIT) — The designer is licensed under Chapters 89A, 89C, 89E, or Y or N 89F of the General Statutes Provide an explanation for every MDC that was not met, and for every item marked "N/A" or "WE", below Attach additional pages as needed Page 4 of 6 State Stormwater Management Permit No SWB 990224 AS -BUILT DESIGNER'S CERTIFICATION FOR WET DETENTION POND PROJECT I hereby state that I am a licensed professional and I certify by my signature and seal below, that I have observed the construction of the project named above to the best of my abilities with all due care and diligence, and that the project meets all of the MDC found in NCAC 02H 1053, in accordance with the permit documents, plans and specifications on file with or provided to the Division, except as noted on the "AS -BUILT" drawings, such that the intent of the stormwater rules and the general statutes has been preserved Check here if this is a partial certification Section/phase/SCM #? Check here if this is part of a Fast -Track As -Built Package Submittal per 1044(3) Check here if the Designer did not observe the construction, but is certifying the project Check here if pictures of the SCM are provided Printed NC Registration Number SEAL Signature Consultant's Mailing Address City/State/ZIP Phone Number Consultant's Email address OO Circle N if the as -built value differs from the Plan/permit If N is circled, provide an explanation on page 2 OO N/E = not evaluated (provide explanation on page 2) OO N/A = not applicable to this project or SCM This Certification must be completed in conjunction with the General MDC certification under NCAC 02H 1050 Consultant's Certification (MDC 1053) OAs-built ®N/E ®NIA A. Forebay / Depths / Fountain l 1 The available Sediment storage is consistent with the Y N approved plan and is a minimum of 6 in or 2 Water flow over the forebay berm into the main pond Y N occurs at a non -erosive velocity or 3 The provided Forebay Volume is 15%-20% of the main Y N pool volume or 4 The Forebay entrance elevation is deeper than the exit Y N elevation into the and or 5 The Average Design Depth of the main pond below the permanent pool elevation is consistent with the permitted Y or N value? 6 Fountain documentation is provided Y or N B. Side slopes I Banks I Vegetated Shelf 1 The width of the Vegetated Shelf is consistent with the Y N approved plans and is a minimum of 6 feet or 2 The slope of the Vegetated Shelf is consistent with the Y N approved plans and is no steeper than 6 1 or C. As -built Main Pool / Areas / Volumes / Elevations ft 1 The permanent pool surface area provided is consistent Y N with the permitted value or Page 5 of 6 State Stormwater Management Permit No SW8 990224 2 The Temporary Pool Volume provided is consistent with Y N the permitted value or 3 The permanent pool elevation is consistent with the Y N permitted value or 4 The temporary pool elevation is consistent with the Y N permitted value or OO As -built ®N/E OO N/A D Inlets / Outlet / Drawdown f 1 The design volume draws down in 2-5 days Y or N 2 The size of the Orifice is consistent with the permitted Y N value or 3 A trash rack is provided on the outlet structure Y or N 4 Hydrologic impacts to the receiving channel are minimized Y N from the 1 yr 24 hr storm discharge? or 5 The inlets and the outlet location are situated per the Y N approved plan and avoid short-circuiting or E. Ve etabon 1 The vegetated shelf has been planted with a minimum of 3 Y N diverse species or 2 The vegetated shelf plant density is consistent with the approved plans and is no less than 50 plants per 200 sf or Y or N no less than 24 inches on center Provide an explanation for every MDC that was not met, and for every item marked "N/A" or "N/E" below Attach additional pages as needed Page 6 of 6 State Stormwater Management Permit No SW8 990224 Attachment C - Permitting History Sentry Self Storage Permit No SW8990224 A PP al Permit Action Vers4ion 1 Descnption of the Changes Date Included drainage area 1 (DA 1) with one wet pond 3/9/1999 Original 1 0 approved to handle the runoff from 348,532 square Approval feet of impervious area DA1 modified to include a total of408,555 square feet of impervious area DA 1 area increased to 541,015 square feet Pond I was designed to handle 8/14/2007 Major Modification I I the increase, however, an outlet structure replaced the earthen spillway to satisfy Brunswick Cc requirements An Out -Parcel with an allocation of 20,000 square feet of impervious area was added A second drainage area (DA2) and a second wet 4/21/2014 Major 1 2 pond were added Pond 2 was approved to handle Modification the runoff from 79,239 square feet of impervious area DA2 modified to include a total of 110,289 square 8/11/2016 Major 1 3 feet of impervious area Total DA2 area increased Modification to 149,036 square feet DA2 modified to include a total of 141,233 square feet of impervious area A third drainage area 6/11/2019 Major Modification 1 4 (DA3) and a third wet pond were added Pond 3 was approved to handle the runoff from 94,934 square feet of impervious area Page 1 of 1 DEMLR USE ONLY Date Received Fee Paid Permit Number J!oy `v7 Applicable Rules ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction (select all that apply) ❑ Non -Coastal SW-HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ M mt Plan State of North Carolina Department of Environment and Natural Resources Division of Energy, Mineral and Land Resources STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an anginal I GENERAL INFORMATION 1 Project Name (subdivision, facility, or establishment name - should be consistent with specifications, letters, operation and maintenance agreements, etc ) 2 Location of Project (street address) City :CEIVE name on plans, JUN 07 20 County Brunswick Zip 28422 3 Directions to project (from nearest major intersection) From the intersection of NC211 and US17 travel 0 miles toward Southport Project located on right approximatelXpast the main entrance to St James Plantation 4 Latitude 33' 57 15 4" N Longitude 78' 3' 45 3" W of the main entrance to the project 11 PERMIT INFORMATION 1 a Specify whether project is (check one) ❑New ®Modification ❑ Renewal w/ Modificationt tRenewals with modifications also requires SWU-102 - Reneaml Application Fonn b If this application is being submitted as the result of a modification to an existing permit, list the existing permit numberSW8 990224 , its issue date (if known) 04-17-14 and the status of construction ❑Not Started ❑Partially Completed* ® Completed* `provide a designer's certification 2 Specify the type of project (check one) ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3 If this application is being submitted as the result of a previously returned application or a letter from DEMLR requesting a state stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4 a Additional Project Requirements (check applicable blanks, information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748) ❑CAMA Major ®Sedimentation/Erosion Control 3 42 ac of Disturbed Area ❑NPDES Industrial Stormwater ❑404/401 Permit Proposed Impacts b If any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit Sentry Self Storage Is the project located within 5 miles of a public airport? ❑No ®Yes If yes, see S L 2012-200, Part VI htt12 //portal ncdenr or$/web/Ir/rules-and-regulations form SWU-101 Version Oct 31 2013 Pagc I of 6 II,I CONTACT INFORMATION 1 a Print Applicant / Signing Official's name and htle (specifically the developer, property owner, lessee, designated government official, individual, etc who owns the project) Applicant/Organization ITM Development Inc Signing Official & Title I T Mildenberg, President b Contact information for person listed in item I above Street Address 106 Live Oak Lane City Wilmington State NC Zip 28411 Mailing Address (if applicable) City Phone (910 ) 457-7181 Email sentryselfstorageaeenc@hotmad com State Zip Fax (910 ) 457-7678 Please check the appropriate box The applicant listed above is ® The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below ) 2 a Print Property Owner's name and title below, if you are the lessee, purchaser or developer (This is the person who owns the property that the project is located on) Property Owner/Organization Signing Official & Title b Contact information for person listed in item 2a above Street Address City Mailing Address (if applicable) City Phone ( ) Email State State Fax Zip Zip 3 a (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project Other Contact Person/Organization East Coast En mg eermg & Survevmn, PC Signing Official & Title Alan C Lewis b Contact information for person listed in item 3a above Mailmg Address 4918 Main Street, Post Office Box 2469 City Shallotte State NC Zip 28459 Phone (910 ) 754-8029 Email alewis@eces biz Fax ( 910 ) 754-8049 4 Local jurisdiction for budding permits Brunswick County Point of Contact Reggie Hucks Phone # 910 253-20 MAY 3 0 2019 , Form SWU-101 Version Oct 31, 2013 Page 2 of 6 BY. IN PROJECT INFORMATION 1 In the space provided below, bnefly summarize how the stormwater runoff will be treated New Buildmg roof downspouts will discharge to paved roadway/parking and will dram to drop mlets and then piped to an existing wet detention pond 2 a If claiming vested rights, identify the supporting documents provided and the date they were approved ❑ Approval of a Site Specific Development Plan or PUD Approval Date ❑ Valid Building Permit Issued Date ❑ Other Date b If claiming vested rights, identify the regulation(s) the project has been designed in accordance with ❑ Coastal SW -1995 ❑ Ph II - Post Construction 3 Stormwater runoff from this project drains to the Cape Fear River basin 4 Total Property Area 18 33 acres 5 Total Coastal Wetlands Area 0 acres 6 Total Surface Water Area 0 acres 7 Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area* 18 33 acres Total project area shall be calculated to exclude the following the normal pool of unpounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MIiW) line, and coastal wetlands landward from the NHW (or MHW) line Tlie resultant project area is used to calculate overall percent built upon area (BUA) Non -coastal wetlands landward of the NHW (or MHW) line may be included in the total project area 8 Project percent of impervious area (Total Impervious Area / Total Project Area) X 100 = 80 8 % 9 How many drainage areas does the project have? 3 (For high densnhit, count 1 for each proposed engineered stormwater BMP For low density and other projects, use I for the whole properhj area) 10 Complete the following information for each drainage area identified in Project Information item 9 If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below Basin Information Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area _ Receiving Stream Name Jump & Run Jump & Run Jump & Run Stream Class * SC Sw SC Sw SC Sw Stream Index Number * 18-88-9-3-2 18-88-9-3-2 18-88-9-3-2 Total Drainage Area (so 541,015 176,469 149,468 On -site Drainage Area (so 541,015 176,469 149,468 Off -site Drainage Area (so 0 0 0 Proposed Impervious Area** (so 1 408,555 141,233 1 94,934 % Impervious Area** total 76 80 1 64 Im envious`* Surface Area Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area _ On -site Buildings/Lots (so 139,475 18,000 54,000 On -site Streets (so 233,231 12,944 35,934 On -site Parking (so 0 0 0 On -site Sidewalks (so 0 0 0 Other on -site (so 0 0 0 Future (so 15,849 0 5,000 Off -site (so 20,000 0 0 Existing BUA*** (so 0 110,289 0 Total (so 408,555 141,233 94,934 Stream Class and Index Nuniber can be determmned at http //aortal )iedenr or fw� ebfwq[ps/esi * Impervious area is defined as the built upon area including, but not lnnuted to, buildings, roads, sidewalks, gravel areas, etc areas, MAY 3 0 2019 Form SWU-101 Version Oct 31, 2013 Page 3 of 6 'Report only that union tit of existing BUA that will remain after development Do not report Huttexisting BUA that is to be removed and which will be replaced by new BUA 11 How was the off -site impervious area listed above determined? Provide documentation Proiects in Union County Contact DEMLR Central Office staffto check if the project is located within a Threatened & Endangered Species watershed that maybe subject to more stringent smrmwater requirements as per 15A NCAC 02B 0600 V SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project The latest versions of the forms can be downloaded from http //portal ncdenr org/web/wq/ws/su/bmp-manual VI SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and Land Resources (DEMLR) A complete package includes all of the items listed below A detailed application instruction sheet and BMP checklists are available from htto //portal ncdenr org/web/wq/ws/su/statesw/forms dots The complete application package should be submitted to the appropriate DEMLR Office (The appropriate office may be found by locating project on the interactive online map at http //portal ncdenr org/web/wq/ws/su/maps ) Please indicate that the following required information have been provided by initialing in the space provided for each item All original documents MUST be signed and initialed in blue ink Download the latest versions for each submitted application package from http //portal ncdenr org/web/wq/ws/su/statesw/forms does Initials 1 Original and one copy of the Stormwater Management Permit Application Form 2 Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants idj Form (if required as per Part Vll below) 3 Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP 4 Permit application processing fee of $505 payable to NCDENR (For an Express review, refer to htto //www envhelp org/pages/onestopexoress html for information on the Express program and the associated fees Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting) 5 A detailed narrative (one to two pages) describing the stormwater treatment/managementfor ZXE the project This is required in addition to the brief summary provided in the Project Information, item 1 6 A USGS map identifying the site location If the receiving stream is reported as class SA or the iffE receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1/2 mile radius on the map 7 Sealed, signed and dated calculations (one copy) 8 Two sets of plans folded to 8 5" x 14" (sealed, signed, & dated), including s a Development/Project name b Engineer and firm c Location map with named streets and NCSR numbers d Legend e North arrow f Scale g Revision number and dates It Identify all surface waters on the plans by dehneating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW Ime of tidal waters, and any coastal wetlands landward of the MHW or NHW Imes • Delineate the vegetated buffer landward from the normal pool elevation of impounded th 1, k f d th MHW NHW f tid 1 t structures, a an s o streams or rivers, an a ter ) o a wa ers a i Dimensioned property/project boundary with bearings & distances ECEI ppp 9! En j Site Layout with all BUA identified and dimensioned k Existing contours, proposed contours, spot elevations, finished floor elevations MAY 3 0 2019 1 Details of roads, drainage features, collection systems, and stormwater control measures in Wetlands delineated, or a note on the plans that none exist (Must be delineated by a BY, qualified person Provide documentation of qualifications and identify the person who made the determination on the plans Form SWU-101 Version Oct 31, 2013 Page 4 of 6 10 11 n Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations o Drainage areas delineated (included in the main set of plans, not as a separate document) p Vegetated buffers (where required) Copy of any applicable soils report with the associated SHWT elevations (Please identify WA elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs Include an 8 5"x11" copy of the NRCS County Sods map with the project area clearly delineated For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate (infiltration Devices submitted to WiRO Schedule a site visit far DEMLR to verify thne SHWT prior to submittal, (910) 796-7378 ) A copy of the most current property deed Deed book 3512 Page No 1174 s For corporations and limited liability corporations (LLC) Provide documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 2H 1003(e) The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned http / /www secretary state nc us/Corporations/CSearch aspxx VII DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form The appropriate deed restrictions and protective covenants forms can be downloaded from http //portal ncdenr org/web/Ir/state-stormwater- forms does Download the latest versions for each submittal In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DEMLR, and that they will be recorded prior to the sale of any lot VIIi CONSULTANT INFORMATION AND AUTHORIZATION Applicant Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional informahon) Consulting Engineer i Christian Russell, PE Consulting Firm East Coast En,gmeering & Surveying, PC Mailing Address 4918 Main Street, Post Office Box 2469 City Shallotte State NC Zip 28459 Phone (910 ) 754-8029 Email crussell@eces biz Fax (910 ) 754-8049 IX PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) I, (print or hjpe name of person listed in Contact Information, item 2a) certify that I own the property identified in this permit application, and thus give permission to (print or hype name of person listed in Contact Information, item 1a) with (print or hjpe name of organization listed in Contact Information, item la) to develop the project as currently proposed A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system ECEIVE MAY 3 0 2019 Form SWU-101 Version Oct 31, 2013 Page 5 of 6 BY• As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DEMLR Stormwater permit reverts back to me, the property owner As the property owner, it is my responsibility to notify DEMLR immediately and submit a completed Name/Ownership Change Form within 30 days, otherwise I will be operating a stormwater treatment facility without a valid permit I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-2151 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215 6 Signature Date a Notary Public for the State of . County of do hereby certify that personally appeared before me this _ day of , and acknowledge the due execution of the application for a stormwater permit Witness my hand and official seal, SEAL My commission expires X APPLICANT'S CERTIFICATION I, (print or hjpe name of person listed nt Contact Inforinatimt, item 1 a) IT Mzldenberg certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be ecorded, at e proposed project complies with the requirements of the applicable stor,jivA eyrules u ear IiSA �I�H/00 and any other applicable state stormwater requirements Signature Date 6-'38 - / 4 r, , a Nota Public for the State of )�L6�k QW 4,A County of do herebycertify that personally appeared before me thi d c ay of M;A and acknowledge the due xeci n of the application for a stormwater permit Witness my hand and a :Q c,OTA/��, y s t i i o �U1 S ssG� ?: y2FJM My commission expires / V'��i —CQ Q.-;� E ECEIVE MAY 3 0 2019 BY. Form SWU-101 Version Oct 31, 2013 Page 6 of Burd, Tina J From Burd, Tina J Sent Thursday, June 13, 2019 944 AM To sentryselfstorageagenc@hotmad com, alewis@eces biz, crussell@eces b¢ Subject sw8990224 - Sentry Self Storage Attachments SW8 990224 - Sentry Self Storage pdf The Wilmington Regional Office of the Division of Energy, Mineral and Land Resources (Stormwater Section) completed their review of the Express Stormwater Permit Application for the subject project Attached is the cover letter and permit issued on June 11, 2019 that will be mailed separately, along with any other supporting documents Please direct any questions to your reviewer Best Regards, Tina Burd Administrative Associate II Wilmington Regional Office Division of Environmental Assistance & Customer Service Phone 910-796-7215 NCDEQ Wilmington Regional Office 127 Cardinal Drive Ext Wilmington, NC 28405 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties Burd, Tina J From Microsoft Outlook To sentryselfstorageagenc@hotmail com Sent Thursday, June 13, 2019 9 44 AM Subject Undeliverable sw8990224 - Sentry Self Storage HEIEURO2FT028 mail protection outlook com rejected your message to the following email addresses sentryselfstorageagencCa)hotmail com(sentryselfstorageagencCcohotmail com) A communication failure occurred during the delivery of this message Please try to resend the message later If the problem continues, contact your email adman HElEURO2FT028 mad.protection.outlook com gave this error. 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ERS•SURVEYORS Sentry Self Storage Revised Stormwater Calculations June2019 A CA SEAL = 35054 -a-z0is� o '1'GINEE c��: y '�STIAN KEECEIVFt JUN a aQ1 4918 MAIN STREET • POST OFFICE BOX 2469 • SHALLOTTE, NORTH CAROLI NA z8459 • TEL 910 754 8029 • Fax 910 754 8049 FIRM LICENSE NUMBER C 3014 SENTRY SELF STORAGE IMPERVIOUS AREA CALCULATIONS STORMWATER POND #2 DRAINAGE AREA = 176,469 (SF) IMP % = 80 0% BUILDINGS PAVEMENT EXISTING FUTURE FOIAL I OTAI 18,000 (,o I01A1 12,944 (sE) IOTiU 110,289 (,f) 'IOIAI 141,233 (sE) TOTAL 141,233 (SF) Stormwater Pond #2 SENTRY SELF STORAGE East Coast Engineering Volume Calculations and Surveying - JCR PEAK FLOW CALCULATION (PRE) I O=C*I*A Q = 55 cfs C (umtless) _ I = tS an I A = 4 1 (ac) SIMPLE METHOD,," rainfall V=300 *RD *RV*A W 005+(09*IA) A = IDIPLRVIOUS ARLA/DRAINAGF ARFA DRAINAGE AREA = IDIPERPIOUS AREA = TA = 80 O4 a V = dIz60-2 (cf) DESIGN RAINMI L DRAINAGE ARIA RD = RP = A = 5 (nl �° �� o..' a77Ty, ` W1 r8li I PEAK FLOW CALCULATION (POST) I Q=C*I*A Q= 12 C (un.tless) _ ZZ I = EE7 A= 41 SENTRY SELF STORAGE Stormwater Pond #2 Calculations 2008 Stormwater Rules Pond 1 East Coast Engineering Surveying, PC JCR Drainage Area (DA) = 1 176 469 s c 4 05 ac Impervious Area (IA )= 1425001 141 233 (sflji 3 24 (ac) Percent Impervious I IA/DA 0 800 C 80 0% SAIDA 90% TSS 00570 C 5 70% AVERAGE POND DEPTH = 4 79 (ft) Min regV SA @ PP (SA/DA)x(DA) 10,063(sf) DOES PROJECT DRAIN TO SA WATERS NO MIN REQ STORAGE VOLUMEFROM BMP MANUAL P 3-5 16,992 c Surface Area provided PP Elev = 32 00 ft10 170 sf Enough Surface Areaprovided? YES Surface area at top of Veg Shelf 11,364 sf Storage volume above PP 5,384 cf Volume needed above Veg Shelf 11,608 c Surface area provided TP Elev = 34 00 ft 13 412 sf Storage depth above Vag Shelf 1 50 (ft Stora e volume provided above Vag Shelf 18,582 c Total Storage Volume Provided 23,966 (cf) OK Total storage depth above PP 2 00 (ft) Outlet Sizing AVERAGE DEPTH CALCULATIONshef_not_submerged AREApe,,,,a„e„tyop AREAbottom_sheif AREA�d_bottom DEPTHbeiav, bot sh above sea stor AVERAGE DEPTH POND 10 170 (so 5 567 (sf) 2 596 (sf) 6 (ft) 4 8 (ft) Q - 2 day drawdown time Min req'd storage volume x (1 in / 2 days) 0 098 (cfs) 48 0 (hrs) Q - 5 day drawdown time Min req'd storage volume x (1 in / 5 days) 0 039 (cfs) 120 0( hrs) Height In 113 Min Storage Depth) 0 67 (ft) Co Constant 06 Required Area for Q-2 A = Q/(C x (2gh)12) 3 60 inA2 Required Area for Q-5 A = Q/(C x (2gh) ) 1 44 (in A2) Orifice Choosen 1-1/2 " SCH 40 PVC 1 1 690 (in) CHECK Area Provided by Orifice Choosen A = nrz 1 99 inA2 Area Provided by Onfice Choosen 0 014 ftA2 The Average head h = 1/3(Temporary Pool depth - 1/2(orifice diameter)) 6 410 in The Average head 0 534 (ft) Q provided Q = Ca(2gh) 0 049 (cfs)l 108 8 (hrs) 4 5 (days) SENTRY SELF STORAGE IMPERVIOUS AREA CALCULATIONS STORMWATER POND #3 DRAINAGE AREA = 149,468 (SF) IMP % = 63 5% BUILDINGS ROADWAY SIDEWALKS FUTURE TOTAL 54,000 (so 35,934 (so 0 (SO 5,000 (,0 94,934 (s0 TOTAL 94,934 (SF) STORMWATER POND #3 SENTRY SELF STORAGE East Coast Engineering VOLUME CALCULATIONS and Surveying - JCR PEAK FLOW CALCULATION (PRE) =C*I*A .Q= C (umtless) _ I= A=134 SIMPLE METHOD, V=3630 *RD *RV*A RV=005+(09+IA) IA ARIA DRAINAGE AREA = IMPERVIOUS AREA = CIA = 63 51% RID = J �lllj DESIGN RAINFAI I RV = yy,�.1'�'6v A — 1-44a49 DRAINAGI ARbA PEAK FLOW CALCULATION (POST) Q=C*I*A QI= 92c('e C (unitless) _ A= 34 ac SENTRY SELF STORAGE Stormwater Pond #3 Calculations 2017 Stormwater Rules Pond 1 East Coast Engineering Surveying, PC JCR Drainage Area (DA) = 1 149,468 (s01 or 3 43 (ac Impervious Area (IA )= 94 934 s 2 18 (ac) Percent Impervious 1 IA/DA 0 635 or 63 5% SAIDA, 90% TSS 00352 or 3 52% AVERAGE POND DEPTH = 4 (ft) Min req'd SA @ PP - (SA/DA)x(DA) 5,268 (sf) MAIN POOL AREA Surface Area provided @ PP 7,114 (sf) MAIN POOL AREA DOES PROJECT DRAIN TO SA WATERS NO MIN REQ STORAGE VOLUMEFROM BMP MANUAL P 3-5 11,614 c Surface Area provided PP Elev = 32 00 (ft) 9,094 (sf) I FOR STORAGE CALC Enough Surface Area provided? YES Surface area at top of Veg Shelf 11 660 (sf) Storage volume above PP & below Veg Shelf 10,377 c Volume needed above Veg Shelf 1,237 (c Surface area provided TP Elev = 33 33 ft 12,110 sf) Storage depth above Veg Shelf 0 33 ft) Storage volume provided above Veg Shelf 3,922 (cf) Total Storage Volume Provided 14,299 (cf) OK Total storage depth above PP 1 33 (ft) Outlet Sizing AVERAGE DEPTH CALCULATIONsheif not-suemarged VOLUMEoe, rent pod VOLUMEpamwppand above Dodomotshdt AREApe,m-Pd AREAdoa. melt AVERAGE DEPTH POND MAIN POOL AREA 29 132 (co 0(cf) 7 114 (st) 7,114 (sf) 4 (ft) Q - 2 day drawdown time Min re 'd storage volume x 1 in / 2 days) 0 067 cfs) Q - 5 day drawdown time Min re 'd storage volume z 1 in / 5 days) 0 027 cfs Height h 1/3 Min Storage Depth) 0 44 (ft) Cc Constant 06 Required Area forQ-2 A = Q/(C x (2gh)tn) 3 02 (inA2) Required Area for Q-5 A = Q/(C x (2gh) ) 1 21 (inA2) Orifice Choosen 1-1/2 "SCH 40 PVC 1 590 (in) CHECK Area Provided by Onfice Choosen A = nrz 1 99 (inA2) Area Provided by Orifice Choosen 0 014 ftA2) The Average head In = 1/3(Temporary Pool depth - 1/2 onfce diameter)) 3 730 (in) The Average head 0 311 (ft) Q provided Q = Ca(2gh) 0 037 (cfs)l 101 9 (hrs) 4 2 (days) SENTRY SELF STAGE STORAGE POND #3 STORAGE CALCULATIONS POND 3 FOREBAY STAGE STORAGE TABLE STAGE ELEVATION AREA INCREMENTAL TOTAL VOLUME VOLUME 0 (bottom) 26 00 (fmsl) 216 00 (SF) 0 00 (CF) 0 00 (CF) 1 27 00 (fmsl) 400 00 (SF) 308 00 (CF) 308 00 (CF) 2 28 00 (fmsl) 614 28 (SF) 507 14 (CF) 815 14 (CF) 3 29 00 (fmsl) 857 13 (SF) 735 71 (CF) 1,550 85 (CF) 4 30 00 (fmsl) 1,128 12 (SF) 992 63 (CF) 2,543 47 (CF) 5 31 00 (fmsl) 1,424 67 (SF) 1,276 40 (CF) 3,819 87 (CF) 6 32 00 (fmsl) 1,746 35 (SF) 1,585 51 (CF) 5,405 38 (CF) SENTRY SELF STAGE STORAGE POND #3 STORAGE CALCULATIONS POND 3 MAIN POOL STAGE STORAGE TABLE STAGE ELEVATION AREA INCREMENTAL TOTAL VOLUME VOLUME 0 (bottom) 24 00 (fmsl) 864 00 (SF) 0 00 (CF) 0 00 (CF) 1 25 00 (fmsl) 1,404 00 (SF) 1,134 00 (CF) 1,134 00 (CF) 2 26 00 (fmsl) 2,016 00 (SF) 1,710 00 (CF) 2,844 00 (CF) 3 27 00 (fmsl) 2,700 00 (SF) 2,358 00 (CF) 5,202 00 (CF) 4 28 00 (fmsl) 3,456 00 (SF) 3,078 00 (CF) 8,280 00 (CF) 5 29 00 (fmsl) 4,283 14 (SF) 3,869 57 (CF) 12,149 57 (CF) 6 30 00 (fmsl) 5,170 27 (SF) 4,726 71 (CF) 16,876 28 (CF) 7 31 00 (fmsl) 6,113 94 (SF) 5,642 11 (CF) 22,518 38 (CF) 8 32 00 (fmsl) 7,114 16 (SF) 6,614 05 (CF) 29,132 43 (CF) SENTRY SELF STAGE STORAGE POND #3 STORAGE CALCULATIONS POND 3 TEMPORARY POOL STAGE STORAGE TABLE STAGE ELEVATION AREA INCREMENTAL TOTAL VOLUME VOLUME 0 (bottom) 32 00 (fmsl) 9,094 16 (SF) 0 00 (CF) 0 00 (CF) 1 33 00 (fmsl) 11,660 25 (SF) 10,377 21 (CF) 10,377 21 (CF) 2 33 33 (fmsl) 12,109 92 (SF) 3,922 08 (CF) 14,299 29 (CF) MAIN POOL FOREBAY VOLUME VOLUME 29,132 43 (CF) 5,405 38 (CF) FOREBAY PERCENTAGE OF MAIN POOL 18 55% Hydraflow Storm Sewers Extension for AutoCAD® Civil 3D® 2012 Plan e e z v t e Dare ovae N*d Fdi IU W-PXASE/Mm Nurbrdbw 2 DW Y7/2070 Yam 4+w� I Ol You created this PDF from an application that is not licensed to print to novaPDF printer (http IA v novapdf com) Line Profile (Line 5) - PH4-P7 Line 5 - PH4-P7 Elev (ft) 3700 3500 3300 3100 2900 2700 37 00 3500 3300 3100 2900 2700 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Reach (ft) pw i al l Imes Elevation Depth of Flow Hydraulic Grade Line Velocity Cover Line G ids) Dn 00 Up (7) Dn ('0 Up (N Hw (N Dn 09 Up (it) Jnct (t0 Dn (8/s) Up (Ns) Dn (10 Up Vt) 5 071 2080 3150 004 035 038 31 11 31 88 j 3185 134 282 320 210 Protect File No Lines 0 Run Date 5/7/2010 You created this PDF from an application that is not licensed to print to novaPDF printer (http //vrww novapdf com) Line Profile (Line 4) - PH4-P8 Pip 1 of t PH4L89 Line 4 - PH4-PS PHa�s v (ft) 3600 3600 ------- —--- 3400 3400 3200 — -------------- 320 3000 " �0 Xf= _ rue 3—------— 399 2" 057-0— -- 28 00 2800 — — — — — — — — — — — — — — — — 2600 2600 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Reach (ft) trned Elevation Depth of Flow Hydraulic Grade Line Velocity Cover Line 0 0 (ds) Dn 00 Up (f) Dn (to Up (f0 Hw (10 Dn (f0 Up 01) Jnct (f0 Dn (Ns) Up (Ns) Dn 00 Up 00 4 226 3000 3080 064 064 084 3064 3144 3144 428 428 400 320 Project File No Lines 0 Run Date 6/y/2010 You created this PDF from an application that is not licensed to print to novaPDF printer (http //w novapdf tom) Line Profile (Line 3) - PH4-P9 Paps 1 er t FH4-veto Line 3 - PH4-P9 aHa� lev (ft) 3600 360 --- ------ 3400 3400 ---------- 3200 3200 3000 3000 ne4 --L 7 Lf--5'@051e 1 ---- 2800 2800 ---------------- 2600 26 00 0 10 20 30 40 50 60 70 60 90 100 110 120 130 140 150 160 Reach (ft) Irrved Elevation Depth of Flow Hydraulic Grade Una veloGry Cover Una G (ds) (N (N Dn 00 Up (f) Hw (�9 Dn (M Up 00 Jncr MO Dn OVS) Up (�> Dn (10 Up (N 3 381 29 Os 29 7s 0 ee 0 7e 0 7e 29 93 30 531 3053 414 4 72 470 400 Project File No Unea 9 Run Dete Sl/f2019 You created this PDF from an application that is not licensed to print to novaPDF printer (httpJ/www novaodf com) Line Profile (Line 2) - PH4-P10 Ppt of Line 2 - PH4-P10 Elev (ft) 3900 3900 P -CB 10 3600 3600 330 3300 3000 30 00 — — 1 30 034 -- 1 O 96- — 2700 2700 — ne4—-------- _— ------- 24002400 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Reach (ft) Imren Elevation Depth of Flow Hydraulic Grade Line Velocity Cover Une6 G (cis) Dn (ft) Up (to Dn 01) Up (f) Hw (10 Dn (to Up (R) Jnct 00 Dn (Ns) Up (ft/3) Dn (ft) Up (0) 2 481 2833 20 0S 068 088 0 BD 2023 2993 2093 622 522 540 470 Project Foe No Units 0 Run Date 51712010 You created this PDF from an application that is not licensed to print to novaPDF printer (http 11v novapdf com) Line Profile (Line 8) - PH4-PI1 hp,t dt line 8 - PH4-P11 Elev (ft) 3900 3900 —_ P-GB74--------_—PH4-CE 11 -- 3600 3600 3300 3300 3000 3000 -- — ---- -----1 7 Lf-2'-@0519===—= 2700 2700 =—rea—==—____--__ ------ 2400 2400 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Reach (R) Invert Elevallon Depth of Flow Hydraulic Grade Une velocity Cover Une0 G (cfs) Dn (10 Up ((0 Dn (N Up (M Hw (M Dn (tt) UP (f0 Jnct (f0 Dn (6/,) Up (" Dn (10 Up 00 8 218 2860 2930 065 065 085 2925 2995 2005 437 437 540 470 Project File No Una, 9 Run Date 5/7/2019 You created this PDF from an application that is not licensed to print to novaPDF printer (http //www novapdf com) Line Profile (Line 7) - PIi4-P12 ®II®®®®®®®®®®®®®III® I f �Il000�eoo MEN I I 1 1 1 1 .1 1 .1 1 :1 •1 11 1 I 1 .1 1 .1 Pap IaI Invert Elevation Depth of Flow Hydraulic Grade Lim vewv Cover Une 0 G WS) Dn cN Up (N Dn 01) Up cro Ff. 00 Dn cro Up (IU Jncl (ro Dn MIS) Up M/S) Dn (it) Up cro 7 147 2930 3000 031 051 051 2991 3031 3031 361 301 470 400 prood File No Lines 0 Run Date 3l7/2019 You created this PDF from an application that is not licensed to print to novaPDF printer (http 11w novapdf com) Line Profile (Line 6) - PH4-P13 Poe f or t Line 6 - PH4-P13 Elev (ft) 3900 3900 — -8814 -- --_= P -CB13 3600 3600 3300 3300 30 00 30 00 —_ 1 022 - 1 0 %----1me_Z 2700 2700 ------- zaoozaoo 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Reach (ft) Invert Elevadon Depth of Flow Hydraulic Grade Una Velocity Cover Unef a (de) Dn 00 Up fro Dn (ft) UP (ro 1/w (m Dn (m UP (it) Jncd ao Dn (111e) Up WS) Dn M Up (ro 6 321 2635 2905 072 072 072 2907 2977 2977 441 441 540 470 Project He No Unee 0 Run Date 5/7/2010 You created this PDF from an application that is not licensed to print to novaPDF printer (http //www novapdf cwm) Line Profile (Line 1) - PH4-P14 P"I of Line 1 - PH4-P14 Elev (ft) 390 3900 P CB14- _ 36 00 3600 3300 3300 30 00 3000 27 00 2700 — e 2400 2400 0 5 10 15 20 25 30 35 40 45 50 55 60 Reach (ft) Invert Elevation Depth of Flow Hydraulic Grade line Velochy Cover line• G (of$) Dn (fU Up (f* Dn (f) Up (ft) Hw 00(f0 Dn Up 00 Jnct (f) Do (11IS) Up 0Vs) Dn 111) Up 01) 1 1328 27 3o 27 80 129 120 129 2859 2690 2889 819 610 4 00 540 Project File No lines 9 Run Date 5(72010 You created this PDF from an application that is not licensed to print to novaPDF printer (http ]A w novapdf com) Line Profile (Line 9) - PH4-P15 Line 9 - PH4-1216 Elev (ft) 420 4200 38 00 3800 3400 D-3-0S 34 00 3000 3000 2600 2600 2200 2200 0 5 10 15 20 25 30 35 40 45 50 55 60 Reach (ft) Invert Elevation Depth of Flow Hydraulic Grade Una Velocity Cover Una c (cfs) Dn @0 Up (N Hw (10 Dn (Po Up (1U Jnct (N Dn (Ns) Up (Ns) Dn (fU Up (N0 400 !31)ooE31*so Oil 071 071 3171 32 21 j 3221 400 402 400 -3 50 Project File 7 No Lines 9 Run Date 5/7/2019 You created this PDF from an application that is not licensed to print to novaPDF printer (http /Iwww novapdf com) Line Profile (Line 1) - PH4-P14 Page 1 of 1 Line 1 - PH4-P14 Elev (n) 3900 3900 -- -- P 4_CS74- 35 00 3600 _ 3300 3300 3300 3000 _ _ _ _ _ -- — — 27 00 WWI. = 36` 0 000 — 2700 2400 2400 0 5 10 15 20 25 30 35 40 45 50 55 60 Roam (N) Invert Elevation Depth of Flow Hydraulic Grade Line Velocity Cover Line # Q (cfs) Dn (ft) Up (ft) Dn (ft) Up (ft) i Hw (ft) Dn (ft) Up (ft) Jnct (ft) Dn (ft/s) Up (ft/s) Dn (ft) Up (ft) 1 13 26 2760 2760 1 16 1 42 1 99 2876 2902 2959 525 402 400 440 Project File No Lines 9 Run Date 6/512019 S.- S—e East Coal Epfff a dm 68a/9ashM Project SLNTRYSPLFS70RAGf Counry BRDASW7CA Dal, .,n, vfi�sat Bj JCR atwbary A 0 career felas Ch,,Aed ,11& ar PH4 PI5 Q5= Do= 2008 QIO= 4CF5 TW= 100fi Q 25 = d 50 (from figure 8 O6)= 1 00 m Q50= La( from figure 806)= 800fi Lenbah = 24 00 fi Slope= 002 ..ter Condition Tw< 05 drmneter use Figure 806a W=Do+La W= 1000 fl T. 10 5 diameter use Rgure 8 066 W=Do+04La W= 520fi Apron TlucArress= I5-d mar 019 fi say 02 fi .a.. Fl—&Mr, Y� wl I nm� `<an.r�a. eumun rnt 0 T,,I n an5 R, reYoam>oSlb Erosion Control Stone Class A to Class B 5 to 15 Use class A Wah filter Fabnc 05•Do= 100 fi 9•Do= 600 fi Stone Vol = 8960 cu fi d max = 1 50 m Tans = 448 tons Fabnc= V 10 sy Dimensions La 800 fi W 520 3-Do 6 fi Designed By '3 Chrst., Rueseu PE Date 6/412010 Checked By Date Company East Coast Enginaermg Project Name SENTRY SELF STORAGE Project No 13141 site Loeahon (Cityrtown) SOUTHPORT Culvert Id PH4 P15 Estimation of Stone Size and Dimensions For Culvert Aprons step q Compete flaws elactty N. at Culvert or peed chatmel outlet Su _s) ForpperWscrt.D,isdumeers Fnr pipe amh xch and box calserta ead posed ebavael ouden De=Ae wheu A = crou umooal area of flw at oudet Far multiple curt erts usei 25 x D of single cuha t Velocity (fVs) Opening type iPipe Culvert Sin Single or multiple openmgs' i Single Outlet pipe diameter D, (ft) 2 NOTE 1 If opening type is anything other Nan Pipe Culvert Do A, (Goss -sectional area of Dow at out ed NOTE if multiple openings Da 125 x D, of single culvert Step 3) For apron grades of 10'. ar steeper uu vuvendacions For acxt hiflai zoos (Zones 1 through 6) o Zone 1 Figure e 06c Will apron have >1=10%grade? No NOTE Far apron slopes equal to or greater (lion 10% use net higher Zone in Figures red m determine apron length Apron length(ft) 6 Figure80fitl Determination of Stone Sizes For Dumped Stone Channel Linings and Revetments sup T Lae same a WO to latnmma maaimurn aurae sue (a S r 12 Fps - 30 or 550 Far Max stone size (in) 2 Fgure s.06. Strp 2 Uu figutc s 06 to ddcsm�nc xccptablc sur ravae for stone (fin 12 FPS n is l25 SnO IM for l5'. of stone sad We maxwum andmmw sagetouvghtshoWdbe25500lbs) NOTE Indatnmmiogchannelselocinesforstooeh.,p metmant use the foaosamg coefficuau ofroughaess Duman Mamuvg s M. thickness (inches) n afhnmg (makes) Fine 3 0031 9 12 Lighr 6 0035 12 is MNi,® 13 O00 Is 24 Healy 23 0014 30 36 (egseoxh) (Uwpwi) Min & max range of stones (Ibs) 25 250 Figure a 05f Weight range of 75%of stones glos) 50250 Figure 805f ROY COOPER Governor MICHAEL S REGAN 5.<rrfury S DANIEL SMITH Inienm Director June 3 2019 NORTH CAROLINA Environmental Quality Via email onh venlryselJsroraxeagene(a�liolmnrl com Pi Al Development Inc Ann J I Mildenberg President 106 Live Oak Lane Wilmington \C 28411 Sublcct Reyuistfor Additional Information Storm"ater PrDlcct -No SXV8 990224 Sentrt, Self Storage Brunswick Countv Dear \ir Mildenberg I he Wilmington Regional Officc reccived and accepted a modified Express State Stormwater \4ana2ernent Perm t Application for the subject project on May 30, 2019 A preliminary in-depth review ofthat information has determincd that the application is not complete and that additional information is needed I o continue the review please provide the following additional information 1 15A ACAC 0211 1042(2)(a)(u) and N C G S 143-214(c3) Section 115 of the submitted application indicates that this project is not within 5 miles of a public airport Upon review, however it has been determined that this project is within 5 miles of a public airport (Cape fear Regional Jetpon Southport) Please update this section appropriately 2 15A \CAC 0211 1042(2)(0 Please provide i separate set of the stage -storage tables for Pond 3 to add to the calculations We cannot accept calculations just being shown on the plans 3 15A \CAC 0211 1042(2)(g)(vu) The invert elevations for the proposed new inlet to Pond 2 and the Inlet to proposed Pond 3 were not Included on the plans Please provide the invert elevations for the proposed new mlct to Pond 2 and the Inlet to proposed Pond 3 4 15A \CAC 0211 1003(3)(a) and 1042(3)(b) a I he submitted Wet Pond supplement for Pond 2 indicates that the total drainage area for drainage area 2 is 176 469 sf I he submincd calculations however, indicate that the total drainage area for drainage area 2 is 183 995 sf Please confirm the correct drainage area and ensure it is represented consistently throughout the application package b fhe submitted Wet Pond supplement for Pond 2 indicates that the elevation of the bottom of the permanent pool is at 24 fins] I he Operation and Maintenance agreement and calculations for Pond 2 however indicate that the bottom of the permanent pool is at 26 frisl Please confirm the correct elevation and ensure it is represented consistently throughout the application package c I he submitted Wet Pond supplement for Pond 2 indicates that the elevations for the top and bottom of the vegetated shelf are at 33 fmsl and 32 frisl, respectively I he calculations for Pond 2 however, indicate that the elevations for the top and bottom of the vegetated shelf arc 32 5 fmsl and 31 5 frost, respectively Plcasc confirm the correct elevations and ensure they are represented consistently throughout the application 15A VCAC 02H 1050(4) a Please provide engineering calculations demonstrating that the inlets of the SC\9s shall be designed to protect the SCM from erosion resulting from stormwater flow into the SCVI during the peak flow from the 10-year storm event b Plcasc, provide engineering calculations demonstrating that the outlets of the SC\4 will not cause erosion downslope of the discharge point during the peak flow from the 10-year storm event I his can be accomplished by providing the rip -rap calculations North Carolina Departmtnt of Environmental Quality I Dnislon of Energy Mineral and Land Resources % Wilmington Regional Office 1 127 Cardinal Drive Extenslon I Wilmington North Carolina 28405 o�.n.+t+""�'•�� 9107967215 State Stormwater Permit \o Sw8 990224 Page 2 of 2 6 1 sA AC VC 0211 1053(5)(a) Calculations supporting that the forcbav volume is 15 to 20 percent of tht. volume in the main pool were not mcludcd in the submitted calculations Please provide calculations supporting that the forcbay volume is 15 to 20 percent of the volume of the roam pool 7 Due to the rclauvcly minor nature, of these comments the express additional information review fee has been waived Please rcmembu to confirm that anv revised information is presented consistently throughout the application documcnu including calculations supplunents, narrative, and plans Please also remember to provide two hard copies of any updated documents per 15A \CAC 0211 1042(2) i he rcqucstcd information should be rccervcd in this Office by lunc 10 2019 or the application will be returned as incomplete If the project is returned and you wish to re -submit to the Express Program you will need to reschedule the project through the Express Coordinator for the next avadablc review date and will need to resubmit all required items at that time including the application fee If additional time is needed to submit the requested information please email your extension request prior to the original due date to the Division at the email address provided below The extension request must include ajustification and a date of when the requested information will be submitted to the Division which shall be no later than 5 business days past the original due date Please i emembei that ezlenslon i equests delay the issuance of the final pei nut "I he construction of any impervious surfaces other than a construction entrance under an approved Scelimentation I-rosion Control Ilan is a violation of \CGS 143-215 1 and is subject to enforcement action pursuant to \CGS 143-215 6A Please label all packages and cover letters as Express and reference the State assigned project number on all correspondence If you have any questions concerning this matter, please feel free to call me at (910) 796-7215 or email me at Barrett iorda a ncdenr gov Smccrely,""�� 157 m 5n a Garrett %orda Environmental Engineer GDS/gdi \\\Stormwater\Permits & Projects\] 999\990224 11D\2019 06 addinfo 990224 cc J Christian Russcll, PE via email ci ussell(aeces biz Wilmington Regional Office Stormwater Tile Zorda, Garrett D From Zorda, Garrett D Sent Monday, June 3, 2019 4 43 PM To sentryselfstorageagenc@hotmail com , crusselLd eces biz Cc Georgette Scott (georgette Scott@ncdenr gov) Subject Sentry Self Storage (SW8 990224) - Request for Additional Information Attachments 2019 06 addinfo 990224 pelf W Attached is a pdf of the request for additional information for the subject project There are just a few items that need to be addressed Please let me know if you have any questions or concerns Thanks, Garrett Zorda Environmental Engineer Division of Energy, Mineral and Land Resources — State Stormwater Program Department of Environmental Quality 910 796 7215 office 910 796 7345 direct oarrett zorda(o)ncdenr gov 127 Cardinal Drive Ext Wilmington, NC 28405 NU,>—Nothing Compares,...._ Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties East Coast Eng ENGINEEF May 30, 2019 Ms Christine Hall & Surveying, P.C. NCDENR — Division of Energy, Mineral and Land Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 URVEYORS Subject Sentry Self Storage Brunswick County, North Carolina High Density Stormwater Permit— Express Submittal Dear Ms Hall Enclosed is the Express Permit Fee required for the subject project in Brunswick County, North Carolina This submittal is for a High Density Commercial Stormwater Permit draining to an on -site wet detention pond It is our understanding that an express permit fee of $4,000 00 is required for the express stormwater review The breakdown of the fee is as follows Express Stormwater Review Fee = $4,000 00 (high density, directed to an on -site system) If you have any question or require any additional information, please contact me at our office J Christian Russell, P E Enclosure Check #3515 in the amount of $4,000 00 copy Mr J f Mildenberg (JTM Development) File 1314 (Sentry Self Storage) a' EceI MAY a 0 2015 BY' 4918 MAIN STREET -POST OFFICE BOX 2469 •SHALLOTTE, NORTH CAROLINA 28459 •TEL 910 754 8029 • Fax 910 7S4 8049 FIRM LICENSE NUMBER C 3014 East Coast Engi ENGINEER' Mav 30, 2019 & Surveying, P.C. URVEYORS Ms Christine Hall NCD;~NR — Division of Energv, Mineral and Land Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Subject Sentry Self Storage Brunswick County, North Carolina High Density Stormwater Permit — Express Submittal Dear Ms Hall On behalf of our client, J T M Development, Inc, enclosed is a submittal package for the subject project located in Southport, Brunswick County, North Carolina Our client is requesting that this application be processed with the Express Permitting Process The project is a high -density project, and runoff will sheet flow from impervious surfaces to catch basins and then to an on -site stormwater pond The following presents the various components of the enclosed submittal package • Original and one copy of the Stormwater Management Permit Application form, • Deed restrictions are not required for this project, • Original of the Vet Detention Basin Supplement (Pond #2 e" Pond #3), • Original of the Vet Detention Basin Operation and Maintenance Agreement (Pond #2 6 Paid #3), • One (1) Check in the amount of $4,000 00 for the Express Permit Review fee, • One copy of the Stormwater Project Narrative, • One copy of the USGS map with the site identified, • One copy of the Stormwater Calculations and SW-DA-DIAP —Drainage Area Map, • 'Iwo sets of Design Plans, • One copy of the deed for the property, • One copy of the SOS corporate filing, Should you have any questions or comments, please do not hesitate contacting our office at your convenience �"'� A Sincerely, p �E MAY 3 0 2019 J Christian Russell, P E BY. Enclosures pe Mr Terry Mildenberg (Sentry Self Storage) File 1314 (Sentry Self Storage) 49,8 MAIN STREET •POST OFFICE BOX 2469 •SHALLOTTE, NORTH CAROLINA28459 •TEL 910 754 8029 •Fax Sao 754 8049 FIRM LICENSE NUMBER C 3m4 East Coast Engin eri g & Surveying, P.C. ENGINEERS•Pt`A�1,,,ERS•SURVEYORS IQ PROJECT NARRATIVE ggq } For I- -= ik�+. ti P7 E, Sentry Self Storage Expansion MAY 9 0 2019 Brunswick County, North Carolina BY: May 2019 STORMWATER/EROSION CONTROL NARRATIVE Sentry Storage is located on NC 211 just west of NC 133, the east most access to Oak Island This project will build one additional storage facility and provide stormwater treatment for this building and associated asphalt pavement The Tax ID number for the property is 2210064 The total project area and disturbed area is 206,298 SF or 4 74 acres The total parcel area 18 33 acres, 13 59 acres have been previously developed with two wet detention ponds for stormwater treatment The property generally slopes south with low areas that are soft Excavated material will be used to fill in low areas grade the project area to create defined high points splitting sheet flow to retain similar drainage patterns with the exception being Pond 2 intercepting stormwater sheet flow to the west Silt fence will be installed as required to prevent sediment runoff from stockpile and re -graded disturbed areas With flat slopes and small disturbed area, temporary silt fencing will be a sufficient erosion control measure to prevent any sediment from leaving the site A temporary construction entrance will be installed at the entrance to the to the work area to prevent sediment transport during construction To prevent sediment from entering the stormwater collection system during construction, block and gravel inlet protection will be used on the proposed drop inlets These measures shall be inspected regularly, and the accumulated sediment removed to prevent the conveyance of sediment to any off - site areas The primary permanent erosion control measures that will remain after all disturbed areas have been stabilized and the temporary measures are removed will be permanent grassing A seeding schedule along with a construction sequence, project description and erosion control notes will be included on the plans STORMWATER MANAGEMENT NARRATIVE Fhe proposed modification to the current permit includes 110,289 SF of existing impervious area and the addition of an 18,000 SF metal storage building with 12,944 SF of associated asphalt concrete pavement for a total impervious area of 141,233 SF or 3 2 acres of impervious area will be routed through Pond 2 4918 MAIN STREET • POST OFFICE BOX 2469 • SHALLOTTE NORTH CAROLINA 28459 • TEL 910 754 8029 • Fax 910 754 8049 FIRM LICENSE NUMBER C 3014 k Further modification to the existing permit will include the addition of a third wet detention basin, Pond 3 as well as two (2) 25,000 Sr storage buildings, one (1) 4,000 SF storage budding, 35,934 SF of associated asphalt and 5,000 SF of future impervious area to be allocated at a later date for a total impervious area of 94,934 SF or 2 2 acres The proposed project is located within the Cape Fear River Basin The proposed project drams to the Jump and Run stream which is classified SC Sw There are wetlands at the rear of the project and will not be impacted Stormwater from roofs is collected with ram gutters and routed to downspouts that splash onto asphalt concrete pavement Downspouts are located every 20 feet on the long side of the buildings A reverse crown of the aisles act as a gutter and routes stormwater to drop inlets and piped to the wet detention ponds 2 and 3 The total Pond 2 area is approximately 0 34 acres The discharge orifice is a 1-1/2" SCH 40 PVC pipe with an internal diameter of 1 59 inches This will drawdown the required storage volume in 108 9 hours or 4 5 days In the event of a larger than design ram event, an emergency spillway has been provided at 34 2 MSL The total Pond 3 area is approximately 0 29 acres The discharge orifice is a 1-1/2" SCH 40 PVC pipe with an internal diameter of 1 59 inches This will drawdown the required storage volume in 101 9 hours or 4 2 days In the event of a larger than design ram event, an emergency spillway has been provided at 33 40' MSL 4918 MAIN STREET • POST OFFICE BOX 2469 • SHALLOTTE NORTH CAROLINA 28459 • TEL 910 754 8029 • Fax 910-754 8049 FIRM LICENSE NUMBER C 3014 E. MAY 3 0 2010 BY, Wit_ _-'�. � � __may'`-�• _ '_" �• - .. _ ? - —_ '�� `lJ•-__ -- �:-~_-- ,.. •', -A/--��,,.T;,, _`JT_je _ -ram oc If cam [hv / - ~ . v Cb 5[ a BM at 'F; \S -05 � i�''' It all - ` IBflUN K UNyTY� Boat 0 • 8001a 1 Ya e00 ,x le t .zoeon m zooz OeLormv}O TopequaeaW qaw aoparlOnl et eomm�[owner � -- 'n vniw ealemw o This cendos lout onale are no delinquent so valorem takes tees asseasmems or other liens whkb the Brunswick County Tax Collector Is charged wi h4lea that ere a Ilan on Parcel Number `G 237mv as totaled by the Brunswick Courtly Assessor's Office This Is not a certification that the parcel number matches the deed chingsilition ( ) Tale Col / Del Tax Spec Warranty Deed IIIIIIIIIIIIIIIIIIJill IIIIIIIIIIIIIII 9#Ij p1174'aleachass 'D .. Brunswick Cannaty NC Realist., of Do.do page i o Rep of / Pmsen rftc(d er lhtalInt ' L Ck$-Cash$ Refund Cash $ _ Finance_ ❑ Porlo-s of "...cvmart ax d'°6^�e tc ,a wrq .bra Oloryi al r -meat Inn era seals vnnOed by original I rent Nalcannolsempmducndortopled time, book and page Parcel Identifier No 2210006402 & 22100064 Prepared by W Talmage Jones Hogue Hill, LLP P O Drawer 2178 Wilmington, NC 28402 Grantee mailing address 106 Live Oak Lane Wdmmglon, NC 28411 Grantor mailing address 106 Live Oak Lane, Wilmington, NC 28411 Resumed to Hogue Hill. LLP No aemneauoo or opinion on title es capitalist by the pat..... of Into need aupt as may sputa, tram Ine..... air s signed canniest oropmton Tht Granmr(Seller)and the Grantee (Buyer) acknowledge disclosure that the attorney who drancd this instrument, and the law firm for which that attorney is svoctated or is partner, is not the closing attorney or settlement agent and represents only Iht Grantor (Seller) and cannot give legal advice to Grantee (Buyer) other than the advice to secure lead counsel and will prepare the deed consistent with the spMfcaeam in the parch.. agreement, If guy, but, in the gbse..a of such spennna llowall prepare a dead that wall protect the interests of the Grantor (Seller) and therefore Grantee (Buyer) may desire to seek legal advice cram Independent STATE OF NORTH CAROLINA COUNTY OF NEW HANOVER TAX PARCEL NO 2210006402 INTO TAX PARCEL NO 22100064 KNOW ALL MEN BY THESE PRESENTS that J T M DEVELOPMENT, INC, a North Carolina Corporation, "GRANTOR," in consideration of ONE AND NO/100 ($1 00) DOLLARS and other good and valuable consideration, paid to GRANTOR by J T M DEVELOPMENT, INC, a North Carolina Corporation, "GRANTEE," the receipt of which is hereby acknowledged, by these presents, does give, grant, bargain, sell and convey unto the said GRANTEE, and GRANTEE'S, successors, and assigns, forever, in fee simple, all that certain lot or parcel of land located in the County of Bnmswick, State of North Carolina, and more ECEIVG MAY 9 0 2019 BY. 75 VROO particularly described as follows IIIIIIIIBrunswicIIII III�IIII11IIIII IIIII 83512M Cism2 nsri4PRCP Beginning at an old iron pipe located on the Southern right of way hue of NC Highway #211 150'R/W marking the northwestern corner of SENTRY BUSINESS PARK, a Condominium, Phase III, as the same is shown on Plat of Survey for SENTRY BUSINESS PARK recorded in condommium Plat Book 11, Page 205 of the Brunswick County, North Carolina Register of Deeds running thence with and along the Southern right of way hne of NC Highway #211 South 74°33'31"E 283 91 feet to the true point of beginning for this tract, Thence South 19018'32" West along the eastern line of SENTRY BUSINESS PARK as the same is shown on a Plat of Survey recorded in Condominium Book 9, Page 389 of the aforesaid Register of Deeds 68159 feet to a point, Thence North 70041'28" West 259 17 feet along the southern line of SENTRY BUSINESS PARK to a point marking the southwestern comer of SENTRY BUSINESS PARK, Thence South 17°13'35" West 1393 90 feet more or less to a point marked by an old pipe Thence runs with the center of a branch South 490 19 5' East approximately 342 12 feet to a new iron pipe in the northwestern line of the now or former Clinton Bellamy Property, Thence with the Clinton Bellamy Property Line North 19018'32" West 222169 feet more or less to the southern right of way line of NC Highway #211, Thence running with and along the southern right of way line of NC Highway #211 North 74°35'31" West 126 09 feet to the true point of beginning for this tract. This being all of that 18 60 tract conveyed to J T M DEVELOPMENT, INC, by deed dated December 2, 1998 Bud recorded in Book 1266, Page 0029 of the Brunswick County, North Carolina Office of the Register of Deeds, less (1) all of that property described on a Plat of Survey for SENTRY BUSINESS PARK recorded in Condominium Plat Book 9, Page 389 and (2) all of that property described on Location Survey for BARKER VENTURES, INC (SENTRY BUSINESS PARK, a Condominium Phase III) recorded in Condominium Plat Book 11 Page 205, both of said maps being located in the aforesaid Brunswick County Registry Containing 13 68 Acres more or less and being a recombination of Tax Parcel No 2210006402 into Tax Parcel No 22100064 IIIIIIII IIIIIII IIIIIIII IIIII�IIIIIIII 83512 P1116 03_nP ,p 3a ,a emm arunswack Cau,fy. NO agl.t., of Deeds paga a3ar .PEEP TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges and appurtenances thereto belonging, to the said GRANTEE and said GRANTEE's heirs, successors, and assigns, forever, in fee simple, and the GRANTOR, for itself, its heirs, successors and as- signs, does covenant with the said GRANTEE and said GRANTEE's heirs, successors and as- signs, that GRANTOR is seised of the premises in fee simple, and has the right to convey the same in the estate aforesaid, that title is marketable and free and clear of all encumbrances, except as herein stated, and that GRANTOR hereby will warrant and defend the title against the lawful claims of all persons whomsoever, except for the exceptions herein stated Title to the property is subject to the following exceptions The provisions of all applicable zoning and land use ordinances, statutes and regulations, current year ad valorem taxes, all applicable restrictive covenants and utility easements of record The designation GRANTOR and GRANTEE as used herein shall include said parties, their hens, successors, and assigns, and shall include singular, plural, masculine, fenumne or neuter as required by context None of the property herein conveyed includes the primary residence of a Grantor IN WITNESS WHEREOF, the GRANTOR has hereunto set his hand and seal, or if corporate, has caused this instrument to be signed in its corporate name by its duly authorized officer, this the 21 day of 44Ae,11, ao/ J T M DEVELOPMENalNcarolma Corpora r By ❑ T Mddenbe President _y SOSID 0334716 Date Filed 4/6/2017 11 59 00 PM Elaine F Marshall North Carolina Secretary of State C0479(42) BUSINESS CORPORATION ANNUA CA2017 096 03513 9-9-16 NAME OF BUSINESS CORPORATION J T M DEVELOPMENT, INC SECRETARY OF STATE ID NUMBER 0334716 STATE OF FORMATION NC FISCAL YEAR END 12 31 16 I hereby certify that an annual report completed in Its enbrety has been submitted and the Information requested below (required by NCGS 55-16-22) has not changed and is therefore up to date SECTION A REGISTERED AGENT'S INFORMATION 1 NAME OF REGISTERED AGENT JON T MILDENBERG SIGNATURE OF THE NEW REGISTERED AGENT SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT 3 REGISTERED OFFICE STREET ADDRESS & COUNTY4 REGISTERED OFFICE MAILING ADDRESS 106 LIVE OAK LANE 106 LIVE OAK LANE NEW HANO WILMINGT NC 28411 WILMINGTON NC 28411 SECTION B PRINCIPAL OFFICE INFORMATION 1 DESCRIPTION OF NATURE OF 2 PRINCIPAL OFFICE PHONE NUMBEr910-452-4040 4 PRINCIPALOFFICE 3 PRINCIPAL OFFICE STREET ADDRESS & COUNTY 5 PRINCIPAL OFFICE MAILING ADDRESS 106 LIVE OAK LANE 3408 WILSHIRE BLVD SUITE 300 NEW HANG WILMINGT NC 28411 WILMINGTON NC 28403 SECTION C OFFICERS (Enter additional officers in Section E ) NAME JON T MILDENBERG NAME DOROTHY MILDENBER NAME TITLE PRESIDENT TITLE SECRETARY TITLE ADDRESS 106 LIVE OAK LA ADDRESS 106 LIVE OAK LA ADDRESS WILMINGTON WILMINGTON NC 28411 n NC 28411 SECTION D C FIC F ANN F REPORT Section D must be completed d enbrety by a person/business entity SIGNATURE DATE Form must be Signed by an olpcer IlSled under Section C s form JON T MILDENBERG PRESIDENT Pnni or Type Name of Officer Prof or Type Tbfe of Officer HOW TO FILE AND FEES TWO FILING OPTIONS 1 File the annual report electronically with the NC Secretary of Slate for a reduced fee of twenty dollars ($20) — eighteen 1 �� ($18) filing fee and two dollar ($2) electronic filing fee File electronically at File Annual Reports Online" with real tune fill 2 File the annual report (Forth CD-479), in paper form with the NC Department of Revenue for a fee of twenty-five dollar 25) +n Mail Form CD-479 to NC DOR PO Box 25000 Raleigh NC 2764M500 The paper return is not areal -time filing and w MAY 3 0 20i9 take longer to process Note North Carolina law does not permit Limited Liability Companies (LLCs) and Limited Liability Partnerships (LLPs) t the annual report with the NC Department of Revenue Therefore, all LLCs and LLPs must file directly with the NC Secret of State's Office at the link above Hall, Christine From Chris Russell <crussell@eces biz> Sent Wednesday, May 01, 2019 9 07 AM To Hall, Christine, Weaver, Cameron Cc 'Alan Lewis', 'Robert Tucker, 'Sabrina Babson, Annette Bennett Subject [External] 19-0501-EML_SENT_INITIAL_EXPRESS COMMENT -REPLY a External email Do not click finks or open attachments unless youwenfy Sendiail�suspcus emadyasanat attach to re ort s am nc gov - - Christine, Please see my comments below in red Chi is Russell, PC (0)910-754-8029 (f) 910-754-8049 (m)910-232-0692 From Hall, Christine [mailto Christine Hall@ncdenr gov] Sent Tuesday, April 30, 2019 3 32 PM To Chris Russell <crussell@eces biz>, Weaver, Cameron <cameron weaver@ncdenr gov> Cc 'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces biz>,'Sabrina Babson' <sbabson@eces biz>,'Annette Bennett' <abennett@eces btz> Subject RE [External] 19-0424-Express_review_request-w-attach Chris, I have had a chance to review the express request forthis project If I'm understanding the proposed modification correctly, SW8 990224 will be modified to increase the BUA and likely DA to Pond 2 as well as to add Pond 3 and associated BUA and DA draining to it In looking at the previous permit, Pond 2 did not include any future BUA allocation Please confirm the following 1 Will the increased BUA and likely additional drainage area directed to Pond 2 be treated at the 1 5" design storm? Yes The entire impervious area for pond 2 is designed to handle the 1 5" storm 2 Are there any changes proposed to Pond 2 in order to handle the increased runoff? No changes are being requested The pond was over designed in the initial design and has additional capacity in the storage volume The project will be graded so that only the amount of impervious area treatable by the pond will be directed to it 3 Will Pond 3 be designed to the 2017 MDC? (the narrative discusses Pond 3 being sized for 90%TSS removal and notes that it does not utilize a vegetated filter strip, which are references to the previous set of rules) Yes Pond three is designed to the 2017 MDC The references mentioned above are carry over from the previous narrative which did not get removed I will update the narrative to remove them from the description of pond 3 4 The project boundary shown on the site plan does not match the property boundaries shown in the background What is going on with these boundaries? The project boundaries are offset from the property boundaries for clarity only If they are left on top of the property boundary they are difficult to see but they are the same 5 It appears that Jump and Run Creek runs along the rear of this property Please ensure to identify the top of bank of the surface waters and the 50' vegetated setback if they extend into the property area Will do Thank you Thanks' Christine Hall Environmental Engineer Division of Energy, Mineral and Land Resources — State Slormwaler Program Department of Environmental Quality 910 796 7215 office 910 796 7335 direct chrishne hall(�Dncdenr gov 127 Cardinal Drive Ext Wilmington, NC 28405 ;-"Nothing Compares-.-,_. Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties From Chris Russell <crussell@eces biz> Sent Wednesday, April 24, 2019 9 03 AM To Weaver, Cameron <cameron weaver@ncdenr gov> Cc Hall, Christine <Chrstme Hall@ncdenr gov>,'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces biz>, 'Sabrina Babson' <sbabson@eces biz>, 'Annette Bennett' <abennett@eces biz> Subject [External] 19-0424-Express_review_request-w-attach 2o External'email Do not;c6ck=hrik"s or open�attachments unless you veri Send2all'suspicwus email as an attachment to 66 ws am gqr ovF° -� @. s. 119�- r $ ay Cameron, Per Christine's email below I am sending you the request for Express Review for Sentry Self Storage The required documents are attached Please let me know of your earliest availability for submittal Thank you, Chi is Russell, PC (o) 910-754-8029 (f) 910-754-8049 (m)910-232-0692 From Hall, Christine [mailto Christine Hall@ncdenr 8ov] Sent Thursday, April 18, 2019 10 24 AM 2 Hall, Christine From Hall, Christine Sent Tuesday, April 30, 2019 4 32 PM To Chris Russell, Weaver, Cameron Cc Alan Lewis, Robert Tucker, Sabrina Babson, Annette Bennett Subject RE [External) 19-0424-Express_review_request-w-attach Chris, I have had a chance to review the express request for this project If I'm understanding the proposed modification correctly, SW8 990224 will be modified to increase the BUA and likely DA to Pond 2 as well as to add Pond 3 and associated BUA and DA draining to it In looking at the previous permit, Pond 2 did not include any future BUA allocation Please confirm the following 1 Will the increased BUA and likely additional drainage area directed to Pond 2 be treated at the 1 5" design storm? 2 Are there any changes proposed to Pond 2 in order to handle the increased runoff? 3 Will Pond 3 be designed to the 2017 MDC? (the narrative discusses Pond 3 being sized for 90%TSS removal and notes that it does not utilize a vegetated filter strip, which are references to the previous set of rules) 4 The project boundary shown on the site plan does not match the property boundaries shown in the background What is going on with these boundaries? 5 It appears that Jump and Run Creek runs along the rear of this property Please ensure to identify the top of bank of the surface waters and the 50' vegetated setback if they extend into the property area Thanks' Christine Hall Environmental Engineer Division of Energy, Mineral and Land Resources — Slate Stormwater Program Department of Environmental Quality 910 796 7215 office 910 796 7335 direct chnstme hall@ncdenr gov 127 Cardinal Drive Exl Wilmington NC 28405 LM -��'Nothmg Compares s Email correspondence to and from this address Is subject to the North Carolina Public Records Law and may be disclosed to third parties From Chris Russell <crussell@eces biz> Sent Wednesday, April 24, 2019 9 03 AM To Weaver, Cameron <cameron weaver@ncdenr gov> Cc Hall, Christine <Chnstme Hall@ncdenr gov>, 'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces biz>, 'Sabrina Babson' <sbabson@eces biz>,'Annette Bennett' <abennett@eces brz> Subject [External] 19-0424-Express_review_request-w-attach rU-9 j,� External email Do not click links or open attachments unless you verify Send all suspicious email as an attachment to re ort s am nc gov Cameron, Per Christine's email below I am sending you the request for Express Review for Sentry Self Storage The required documents are attached Please let me know of your earliest availability for submittal Thank you, Chris Russell, PE (o)910-754-8029 (f) 910-754-8049 (m)910-232-0692 From Hall, Christine [mailto Christine Hall@ncdenr gov] Sent Thursday, April 18, 2019 10 24 AM To Chris Russell <crussell@eces bin Cc 'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces bin, 'Sabrina Babson' <sbabson@eces biz>,'Annette Bennett' <abennett@eces biz>, Weaver, Cameron <cameron weaver@ncdenr gov> Subject RE [External] 19-0418-Express_review—request I will also be out of the office several days next week So please still send the request to Cameron You may cc me on it if you'd like We will get it scheduled as soon as time permits Christine Hall Environmental Engineer Division of Energy Mineral and Land Resources — State Stormwater Program Department of Environmental Quality 910 796 7215 office 910 796 7335 direct chnstine hall(oncdenr oov 127 Cardinal Drive Ext Wilmington, NC 28405 �Nothmg Compares Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties From Chris Russell <crussell@eces bin Sent Thursday, April 18, 2019 10 38 AM To Hall, Christine <Christine Hall@ncdenr gov> Cc 'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces bin, 'Sabrina Babson' <sbabson@eces biz>,'Annette Bennett' <abennett@eces bin, Weaver, Cameron <cameron weaver@ncdenr gov> Subject [External] 19-0418-Express—review—request t n External email zDo not click links or open attachments unless you v@nfy Send all,sus'picious email°a}s �an attachment to report scam@nc'goy ' """f'""V Christine, I lust left a voicemail for you I understand that Cameron is out of the office until the 29" of April We need to schedule an express review for a new project How is that being handled in his absence? Should I email the request to you or is there another person taking care of scheduling express reviews Thank you very much, Chris East Coast NGINEEPJNG ll SUFivvEnNG PG J Christian (Chris) Russell, PE Project Engineer Post Office Box 2469 Shallotte \orth Carolma 29459 (o)910-754-8029 (Q 910-754-9049 (m)910-232-0692 9 North Carolina Department of Environmental Quality Request for Express Permit Review 4 For DEO Use ONLY w Rev¢•er E Subm¢ !n/F Time I0w Confirm FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review Call and Email the completed form to the Permit Coordinator along with a completed DETAILED narrative site plan (PDF file) and vicinity map (same items expected in the application package of the project location Please include this form in the application package • Asheville or Mooresville Regions -Alison Davidson 828-296-4698,alison davidson ai(d)ncdenr aov Winston-Salem, Fayetteville or Raleigh Regions -David Lee 919-791-4204, david lee(a)ncdenr gov • Washington Region -Lyn Hardison 252-948.3842 or Ivn hardison(aDncdenr aov Wilmington Region -Cameron Weaver 910-796-7265 or cameron weaver(a),ncdenr aov NOTE Project application received after 12 noon will be stamped in the following work day Project Name SENTRY SELF STORAGE County BRUNSWICK Applicant J T MILDENBURG Company JTM DEVELOPMENT, INC Address 106 LIVE OAK LANE City WILMINGTON, State NO Zip 28411 _ Phone 910-457 7181, Fax 910-457-7678, Email SENTRYSELFSTORAGENC@HOTMAIL COM Physical Location 4711 SOUTHPORT SUPPLY ROAD P t D t SC SW t Water classification 18-88--9-3-2 (DWR Surface Water Classifications Map) SW =, SW SW WQES��U U WQ '7 E&S _ E&S _ Other rojec rains in o _ warers — a er Project Located in CAPE FEAR River Basin Is project draining to class ORW waters? N, within %mile and draining to class SA waters N or within 1 mile and draining to class HOW waters? N Engineer/Consultant J CHRISTIAN RUSSELL, PE Company EAST COAST ENGINEERING & SURVEYING P A Address PO BOX 2469 City SHALLOTTE, State NC Zip 28459- C f+C'vE Phone 910-754-8029, Fax 910-754-8049, Email crussell@eces biz EC G PLEASE PROVIDE ESTIMATED INVESTMENT AND EXPECTED EMPLOYMENT, IF AVAILABLE A 1 $0 00 #0 JOBS SECTION ONE REQUESTING A SCOPING MEETING ONLY ear. ❑ Scoping Meeting ONLY ❑ DWR, ❑ DOM, ® DEMLR, ❑ OTHER a� SECTION TWO CHECK ONLY THE PROGRAM IS) YOU ARE REQUESTING FOR EXPRESS PERMITTING ❑ 401 Unit ❑ Stream Origin Determination _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ IntermittenUPerennial Determination _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ 401 Water Quality Certification ❑ Isolated Wetland (_Imear fit or _acres) [I Riparian Buffer Authonzation ❑ Minor Variance ❑ Major General Variance ® State Stormwater ❑ General ❑ SFR, ❑ SFR < 1 ac ❑ Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Other ❑ Low Density ❑ Low Density Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)] ® High Density -Detention Pond 1 # Treatment Systems ❑ High Density -Infiltration _ #Treatment Systems ❑ High Density -Bio-Retention _ It Treatment Systems ❑ High Density —SW Wetlands _ # Treatment Systems ❑ High Density Other _ # Treatment Systems / ❑ MOD ❑ Major ❑ Minor ❑ Plan Revision ❑ Redev Exclusion SW (Provide permit#) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed (CK # & Amt (for DEQ use)) SECTION THREE — PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT (for both scoping and express meeting request) Wetlands on Site ® Yes ❑ No Wetlands Delineation has been completed ® Yes ❑ No US ACOE Approval of Delineation completed ❑ Yes ® No Received from US ACOE ❑ Yes ® No Buffer Impacts ® No ❑ YES _acre(s) Isolated wetland on Property ❑ Yes ® No 404 Application in Process w/ US ACOE []Yes ® No Permit For DFQ un onh Fee Sold for multiple permits (Check# I Total Fee Amount$ SUBMITTAL DATES I Fee SUBMITTAL DATES Fee CAMA $ Variance (❑ Mal, ❑ Mm) $ SW (❑ HD, ❑ LD, ❑ Gen) $ 401 $ "x LGS i $ Stream Deter` $ NCDEQ EXPRESS August 2018 East Coast Engi ENGINEER DATE April 24, 2019 TO Cameron Weaver FROM Chris Russell, PE SUBJECT Sentry Self Storage DEAR MR WEAVER Surveying, URVEYORS TRANSMITTAL VIA EMAIL )d„ Phase -find the -following 0i i•l I)S Request for Express Permit Review 2- StormwaterWhrrative for the proposed project i 3- Site Plan with uicmity map Thanks for your attention to this request' P.C. 4918 MAIN STREET • POST OFFICE BOX 2469 •SHALLOTTE, NORTH CAROLINA 28459 •TEL 910 754 8029 •Fax 910 754 8049 FIRM LICENSE NUMBER C3014 East Coast Engi ENGINEER! Surveying, URVEYORS PROJECT NARRATIVE For Sentry Self Storage Expansion Brunswick County, North Carolina April 2019 STORtMWATERIEROSION CONTROL NARRATIVE P.C. Sentry Storage is located on NC 211 just west of NC 133, the east most access to Oak Island This project will build one additional storage facility and provide stormwater treatment for this building and associated asphalt pavement The Tax ID number for the property is 2210064 The total project area and disturbed area is 206,298 SF or 4 74 acres The total parcel area 18 33 acres 13 59 acres have been previously developed with two wet detention ponds for stormwater treatment The property generally slopes south with low areas that are soft Excavated material will be used to fill in low areas grade the project area to create defined high points splitting sheet flow to retain similar drainage patterns with the exception being Pond 2 intercepting stormwater sheet flow to the west Silt fence will be installed as required to prevent sediment runoff from stockpile and re -graded disturbed areas With flat slopes and small disturbed area temporary silt fencing will be a sufficient erosion control measure to prevent any sediment from leaving the site A temporary construction entrance will be installed at the entrance to the to the work area to prevent sediment transport during construction To prevent sediment from entering the stormwater collection system during construction block and gravel inlet protection will be used on the proposed drop inlets These measures shall be inspected regularly and the accumulated sediment removed to prevent the conveyance of sediment to any off - site areas The primary permanent erosion control measures that will remain after all disturbed areas have been stabilized and the temporary measures are removed will be permanent grassing A seeding schedule along with a construction sequence project description and erosion control notes will be included on the plans STORMWATER MANAGEMENT NARRATIVE The proposed modification to the current permit includes 110 289 SF of existing impervious area and the addition of an 18 000 SF metal storage budding with 12 944 SF of associated asphalt concrete pavement for a total impervious area of 141 233 SF or 3 2 acres of impervious area will be routed through Pond 2 4918 MAIN STREET . POST OFFICE BOX 2469 •SHALLOTTE, NORTH CAROLINA 28459 •TEL 910 754 So29 • Fax 920 754 8049 FIRM LICENSE NUMBER C 3014 Further modification to the existing permit will include the addition of a thud wet detention basin, Pond 3 as well as two (2) 25,000 SF storage buildings, one (1) 4,000 SF storage building, 35,934 SF of associated asphalt and 5,000 SF of future impervious area to be allocated at a later date for a total impervious area of 94 934 SF or 2 2 acres The proposed project is located within the Cape Fear River Basin The proposed project drams to the Jump and Run stream which is classified SC Sw There are wetlands at the rear of the project and will not be impacted Stormwater from roofs is collected with ram gutters and routed to downspouts that splash onto asphalt concrete pavement Downspouts are located every 20 feet on the long side of the buildings A reverse crown of the aisles act as a gutter and routes stormwater to drop inlets and piped to the wet detention ponds 2 and 3 The total Pond 2 area is approximately 0 34 acres The discharge orifice is a 1-1/2 SCH 40 PVC pipe with an internal diameter of 1 59 inches This will drawdown the required storage volume in 108 9 hours or 4 5 days The pond has been sized to provide 90% TSS removal and does not utilize an existing vegetative filter strip but is discharged into a vegetative ditch In the event of a larger than design ram event, an emergency spillway has been provided at 34 2' MSL The total Pond 3 area is approximately 0 29 acres The discharge orifice is a 1-1/2 SCH 40 PVC pipe with an internal diameter of 1 59 inches This will drawdown the required storage volume in 101 9 hours or 4 2 days The pond has been sized to provide 90% TSS removal and does not utilize an existing vegetative filter strip but is discharged into a vegetative ditch In the event of a larger than design rain event, an emergency spillway has been provided at 33 40' MSL 4918 MAIN STREET -POST OFFICE BOX 2469 •SHALLOTTE, NORTH CAROLINA 28459 •TEL 910 754 8o29 • Fax 910 754 8049 FIRM LICENSE NUMBER C 3oi4 \ \ pF 2 l I \ �r'fa n _ _ £_� _ E s s • . 2t SITEPUA : ey Eost Coast En in & Surve In P C tx " SEA'TRYSELFSTORAGE EXPANAS/ON e v e r 6 \� d yrvelneRs sxs suvvsross o �*. L <71I SOU HPORT SUPPLY ROAD SL m SF SOUTHPORT NORTH CAROLP.A Weaver, Cameron From Sent To Cc Subject Attachments Cameron, Chris Russell <crussell@eces biz> Wednesday, April 24, 2019 9 03 AM Weaver, Cameron Hall, Christine, 'Alan Lewis', 'Robert Tucker', 'Sabrina Babson' [External] 19-0424-Express_review_request-w-attach 19-0424_Express_Review_Regst-Pkg-1314 pdf Annette Bennett' Per Christine's email below I am sending you the request for Express Review for Sentry Self Storage The required documents are attached Please let me know of your earliest availability for submittal Thank you, Chris Russell, PE (o)910-754-8029 (f) 910-754-8049 (m)910-2;2-0692 From Hall, Christine [mailto Christine Hall@ncdenr gov] Sent Thursday, April 18, 2019 10 24 AM To Chris Russell <crussell@eces biz> Cc 'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces biz>, 'Sabrina Babson' <sbabson@eces biz>, 'Annette Bennett' <abennett@eces biz>, Weaver, Cameron <cameron weaver@ncdenr gov> Subject RE [External] 19-0418-Express—review—request I will also be out of the office several days next week So please still send the request to Cameron You may cc me on it if you'd like We will get it scheduled as soon as time permits Christine Hall Environmental Engineer Division of Energy Mineral and Land Resources — State Stormwater Program Department of Environmental Quality 910 796 7215 office 910 796 7335 direct chnstine hall(cDncdenr gov 127 Cardinal Drive Ext Wilmington NC 28405 0- :5— 'Nothing Compares,, Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties From Chris Russell <crussell@eces biz> Sent Thursday, April 18, 2019 10 38 AM To Hall, Christine <Christine Hall@ncdenr eov> Cc 'Alan Lewis' <alewis@eces biz>, 'Robert Tucker' <rtucker@eces biz>,'Sabrina Babson' <sbabson@eces biz>,'Annette Bennett' <abennett@eces biz>, Weaver, Cameron <cameron weaver@ncdenr eov> Subject [External] 19-0418-Express_review_request Christine, I just left a voicemail for you I understand that Cameron is out of the office until the 29`h of April We need to schedule an express review for a new project How is that being handled in his absence? Should I email the request to you or is there another person taking care of scheduling express reviews Thank you very much, Chris J Christian (Chris) Russell, PE Project Engineer Post Office Box 2469 Shallotte, North Carolina 28459 ()910-754-8029 / (f) 910-754-8049 (m)910-232-0692 /Lo