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HomeMy WebLinkAboutSW6200802_2020-08-12 Sheffield Sec 5 Storm Permit Documents_20200825DEMLR USE ONLY Date Received Fee Paid Permit Number 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 Mgmt 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 original I. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Sheffield Farms -Section Five 2. Location of Project (street address): Scenic Pines Drive City:Hope Mills County -.Cumberland Zip:28348 3. Directions to project (from nearest major intersection): From Parkton Road turn north onto Brisson Road. Travel 0.58 miles. Turn right (NE) onto Muscat Road Continue along Muscat Road for 0.77 miles. Turn left NW onto Fairhaven Trail. Travel 0.21 miles to end of road. Turn left (W) onto Scenic Pines Drive. Project is at end of road. 4. Latitude:34° 56' 44.03" N Longitude:78° 58' 33.52" W of the main entrance to the project. II. PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New ❑Modification ❑ Renewal w/ Modificationt tRenewals with modifications also requires SWU-102 - Renewal Application Form b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number , its issue date (if known) , and the status of construction: ❑Not Started []Partially Completed* ❑ Completed* *provide a designer's certification 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): ❑LAMA Major ❑NPDES Industrial Stormwater ®Sedimentation/Erosion Control: 7 ac of Disturbed Area ❑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:Have not been received yet 5. Is the project located within 5 miles of a public airport? ®No ❑Yes If yes, see S.L. 2012-200, Part VI: http://portal.ncdenr.org/web/]r/rules-and-regulations Form SWU-101 Version Oct. 31, 2013 Page 1 of 6 III. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the project): Applicant/ Organization: iS1 Development Company, LLC Signing Official & Title:Tayson S. Tohnson, Member Manager b. Contact information for person listed in item 1a above: Street Address:1135 Robeson Street City:Fayetteville State:NC Zip:28305 Mailing Address (if applicable):same City: State: Zip: _ Phone: ( ) Fax: ( 1 Please check the appropriate box. The applicant listed above is: ❑ The property owner (Skip to Contact Information, item 3a) ❑ T essee* (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: GRRF, LLP Signing Official & Title:Charies Gore, Registered Agent b. Contact information for person listed in item 2a above: Street Address:5135 Morganton Road City:Fayetteville State:NC Zip:28314 Mailing Address (if applicable):same City: State: Phone: (_ ) Fax: Email: 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: Signing Official & Title: b. Contact information for person listed in item 3a above: Mailing Address: City. - Phone: 4. Local jurisdiction for building permits: Point of Contact: State: Fax: ( 1 Phone #: Form SWU-101 Version Oct. 31, 2013 Page 2 of 6 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. Stormwater runoff is collected by curb inlets and carried via pipe to a proposed wet detention basin. 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: 15.65 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area+:15.65 acres + Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area between the batiks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landward from the NHW (or MH[M line. The resultant project area is used to calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MH[M line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 29.87 % 9. How many drainage areas does the project have?1 (For high density, count 1 for each proposed engineered stormwater BMP. For low density and other projects, use 1 for the whole property 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 Drainage Area Drainage Area _ Receiving Stream Name Rockfish Creek Stream Class * B Stream Index Number * 18-31-(18) Total Drainage Area (so 453839 On -site Drainage Area (sf) 453839 Off -site Drainage Area (sf) Proposed Impervious Area** (sf) 175113 % Impervious Area** total 38.58 Impervious— Surface Area Drainage Area 1 Drainage Area Drainage Area _ Drainage Area _ On -site Buildings/Lots (sf) 123000 On -site Streets (sf) 52113 On -site Parking (sf) On -site Sidewalks (so Other on -site (so Future (so Off -site (sf) Existing BUA*** (sf) Total (sf): j 175113 Stream Class and Index Number can be determined at: http://portal.ticdennorgLty vq/ps/csu/classifi'cations Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version Oct. 31, 2013 Page 3 of 6 'Report only that amount of existing B UA that will remain after development. Do not report any existing B UA that is to be removed and which will be replaced by new BLIA. 11. How was the off -site impervious area listed above determined? Provide documentation. N/A Projects in Union County: Contact DEMLR Central Office staff to check if the project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements as per 1 SA 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.or�/web/wci/ws/su/bmv-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 hUp: / / hortal-nc►lenr.urgt wv, stat-�sw/forms does. 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.ncderr.or&/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 hW2:/ /portal.ncdenr.org/web/wq/ws/su/statesw/forms dots. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. C�- 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants Form. (if required as per Part VII 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 http:/ /www.envhelp.org/pages/onestopexpress.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/management 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the 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: 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. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control measures. m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. 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). for^ _ Form SWU-101 Version Oct. 31, 2013 Page 4 of 6 p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify elevations in addition to de ths) as well as a ma of the borin locations with —Mnth—Mn elevations and boring logs. Include an 8.5"x11" copy of the NRCS County Soils 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 for DEMLR to verify the SHWT prior to submittal, (910) 796-7378.) - L—�- 10. A copy of the most current property deed. Deed book: 6373 Page No: 0685 11. 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 21-1.1003(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. hqp://www.secretary.state.nc.us/Corporations/CSearch.aspx 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://12ortal.ncdenr.org/web/lr/state- stormwater-forms docs. 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 information). Consulting Engineerjeffrey A. Nobles, PE Consulting Firm: Larry King & Assoc., RLS, PA Mailing Address:1333 Morganton Road, Suite 201 City:Fayetteville State:NC Zip:28305 Phone: (910 ) 483-4300 Email:inobles@lkanda.com Fax: (910 ) 483-4052 IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) I, (print or type name of person listed in Contact Information, item 2a) Charles Gore , certify that I own the property identified in this permit application, and thus give permission to (print or type name of person listed in Contact Information, item 1a) Janson S. Johnson with (print or type name of organization listed in Contact Information, item 1a) JSJ Development Company, LLC 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. Form SWU-101 Version Oct. 31, 2013 Page 5 of 6 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 143-215.1 and may result in appropriate enforcement action including the as ssment of ci 'l penalties of up to $25,000 per day, pursuant to NCGS �143-215. . Signature: Date: I, a Notary Public for the State of 7�l�J County of do hereby certify that personally appeared before me this day of �, ;W20 , and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, �j 1 r Q��C i •� i iC _ :J_. �.. Votury Public p,son ipler Cumbe'Inn County rtn ,lint X. APPLICANT'S CERTIFICATION SEAL My commission expires I, (print or type name of person listed in Contact Information, item 1a) jayson S. Tohnson , 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 recorded, and that the proposed project complies with the requirements of the applicable stormwater rules under 15A NCAC 2H .1000 and any other applicable state stormwater requirements. Signature: Date: T//ks. (240 I, L10 Vz l �'1 1 M P U N Pt iZ , a Notary Public for the State of County of eo C+U (AbO LAN D , do hereby certify that kJk3() Ai J ffl[) Sb personally appeared before me this i 1 day of A-0 UGt, 20ZU , and acknowled e the due execution of the application for a stormwater permit. Witness my hand and official seal, Jo Nn:ery Public L Sri !'..•psnn Epler j Cum:+e-Icr,. County %, N,.rth Carolina I _... SEAL My commission expires 11.- 14 - Form SWU-101 Version Oct. 31, 2013 Page 6 of 6 Hi h Density Residential Subdivisions Deed Restrictions & Protective Covenances In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246. the Stormwater Management Regulations, deed restrictions and protective covenants are required for High Density Residential Subdivisions where lots will be subdivided and sold and runoff will be treated in an engineered stormwater control facility. Deed restrictions and protective covenants are necessary to ensure that the development maintains a "built -upon" area consistent with the design criteria used to size the stormwater control facility. I, Janson S. Johnson , acknowledge, affirm and agree by my signature below, that I will cause the following deed restrictions and covenants to be recorded prior to the sale of any lot: The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number , as issued by the Division of Energy, Mineral and Land Resootces under the Stormwater Management Regulations. 2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the stormwater management permit. 3. These covenants are to run with the land and be binding on all i)erso t,s and parties claiming under them. 4. The covenants pertaining to stormwater may not be altered or rescinded without the express written consent of the State of North Carolina, Division of Energy, Mineral ao(i Land Resources. 5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the Division of Energy, Mineral and Land Resources. 6. The maximum allowable built -upon area per lot is 4000 square feet. This allotted amount h Chides any built -upon area constructed within the lot property boundaries, and that portion of the right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools. OR, if the proposed built -upon areas per lot will vary, please REPLACE #6 above with the following: 6. The maximum built -upon area per lot, in square feet, is as listed below: Lot # BUA Lot # BUA Lot # BUA Lot # BUA This allotted amount includes any built -upon area constructed within the lot property b-, i i i i., Aries, and that portion of the right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does no= include raised, open wood decking, or the water surface of swimming pools. 7. Ea � lot will maintain a 30** foot wide vegetated buffer between all impervious areas and surface waters. **50 foot for projects located in the 20 coastal counties, 8. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be accomplished through a variety of means including roof drain gutters which drain to the street, grading the lot to drain toward the street, or grading perimeter swa/es to collect the lot runoff and directing them into a component of the stormwater collection system. Lots that will naturally drain into the system are not required to provide these additional measures. Form DRPC-3 Rev.2 05Nov2009 Page 1 of 2 High Density Residential Subdivisions Deed Restrictions & Protective Covenances Signature: -- -Date:— T -k\ - 2-0 I, Lbel 5i PO'N F-PL-r---R , a Notary Public in the State of ! C1 , County of 4j D , do hereby certify that, ,3ii ✓ jo-hrvmn personally appeared before me .,his the day of 20 2 and acknowledge the due execution of the foregoing instrument. Witness my hand and official seal, Signiaturet My Commission expires SEAL ic i Sr:-sl . orr EpleP -r :.ounty— —tins Form DRPC-3 Rev.2 05Nov2009 Page 2 of 2 Operation & Maintenance Agreement Project Name: Sheffield Farms -Section Five Project Location: Scenic Pines Drive, Hope Mills, NC _ Cover Page Maintenance records shall be kept on the following BMP(s). This maintenance record shall be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the BMP(s). The BMP(s) on this project include (check all that apply & cc Bioretention Cell Quantity: Dry Detention Basin Quantity: Grassed Swale Quantity: Green Roof Quantity: Infiltration Basin Quantity: Infiltration Trench Quantity: Level SpreaderNFS Quantity: Permeable Pavement Quantity: Proprietary System Quantity: Rainwater Harvesting Quantity: Sand Filter Quantity: Stormwater Wetland Quantity: Wet Detention Basin Quantity: Disconnected Impervious Area Present: User Defined BMP Present: O&M tables will be added automatical Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s). Location(s): Location(s): Location(s): Scenic Pines Drive Location(s): Location(s): I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to the system or responsible party. * Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): Email: Jayson S. Johnson Member Manager, JSJ Development Company, LLC 1135 Robeson Street Fayetteville, NC 28305 910-438-0796 Bohnsonjsj@gmaii.com Signature: Date: I, ? a Notary Public for the State of County of � $� f� jkjV'D do hearby certify that A-3N j , )"Nt o I� personally appeared before me this i I T,j day of G' 2 Q and acknowledge the due execution of the Operations and Maintenance Agreement. Witness my hand and official seal, .4 tia;sr7 Public lari .iir-pson ple: carrUer;A_­ con ty North Carolin 1/P.rcinn 1 d OAM Manual 8/7/2020 f7...... -4 L Seal My commission expires STORM-EZ 8/7/2020 VP.r.Slnn 1 4 Q&M Manuni o.,.,., -, . f r Wet Detention Pond Maintenance Requirements The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. Important maintenance procedures: Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). _ No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. _ Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. - If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. - Once a year, a dam safety expert should inspect the embankment. After the wet detention pond is established, it should be inspected once a month and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance should be kept in a known set location and must be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: I Potential problem: The entire BMP Trash/debris is present. How I will remediate the problem: Remove the trash/debris. The perimeter of the BMP Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then plant a erosive gullies have formed. ground cover and water until it is established. Provide lime and a one- time fertilizer application. The inlet device The forebay The vegetated shelf Vegetation is too short or too Maintain vegetation at a height of approximately six inches. long. The pipe is clogged. The pipe is cracked or otherwise damaged. !Erosion is occurring in the swale. Unclog the pipe. Dispose of the sediment off -site. Replace the pipe. Regrade the swale if necessary to smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and replace with clean stone, covered in sediment (if applicable). Sediment has accumulated to Search for the source of the sediment and remedy the problem if a depth greater than the possible. Remove the sediment and dispose of it in a location where it original design depth for will not cause impacts to streams or the BMP. sediment storage. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. Best professional practices Prune according to best professional practices show that pruning is needed to maintain optimal plant health. Plants are dead, diseased or Determine the source of the problem: soils, hydrology, disease, etc. 'dying. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. STORM-EZ 8/7/2020 Veminn 1 4 O&M Manual D­ q c F Wet Detention Pond Maintenance Requirements Continued the main treatment area Sediment has accumulated to Search for the source of the sediment and remedy the problem if a depth greater than the possible. Remove the sediment and dispose of it in a location where it original design sediment will not cause impacts to streams or the BMP. storage depth. Algal growth covers over 50% Consult a professional to remove and control the algal growth. of the area. The embankment The outlet device The receiving water Cattails, phragmites or other invasive plants cover 50% of the basin surface. Shrubs have started to grow on the embankment. Evidence of muskrat or beaver activity is present. A tree has started to grow on the embankment. An annual inspection by an appropriate professional shows that the embankment needs repair. (if applicable) Clogging has occurred. The outlet device is damaged Erosion or other signs of !damage have occurred at the outlet. Remove the plants by wiping them with pesticide (do not spray). Remove shrubs immediately. Use traps to remove muskrats and consult a professional to remove beavers. Consult a dam safety specialist to remove the tree. Make all needed repairs. Clean out the outlet device. Dispose of the sediment off -site. Repair or replace the outlet device. Contact the local NC Department of Environment and Natural Resources Regional Office. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. STORM-EZ 8/7/2020 Version 1.4 O&M Manual Paso n M F Wet Detention Pond Design Summary Wet Pond Diagram WET POND ID FOREBAY MAIN POND Basin 1 Permanent Pool El. 167.5 Permanent Pool El. 167.5 Temporary Pool El: 169 Temporary Pool El: 169 Pretreatment other No Clean Out Depth: 3.5 Clean Out Depth: 4.5 than forebay? Sediment Removal El: 164 Sediment Removal El: 193 Has Veg. Filter? No Bottom Elevation: 162.5 Bottom Elevation: 162 STORM-EZ 8/7/2020 Version 1.4 O&M Manual Paqe 5 of 5 SUPPLEMENT-EZ COVER PAGE FORMS LOADE PROJECT INFORMATION Project Name Sheffield Farms -Section 5 Project Area (ac)_ Coastal Wetland Area (ac) 0 1 2 3 4 _ Surface Water Area aC 0 5 Is this ro eat High or Low Density? High 6 Does this project use an off -site SCM? No COMPLIANCE WITH 02H .1003[4) 7 Width of vegetated setbacks providled feet 8 Will the vegetated setback remain vegetated? 9 Is BUA other that as listed in .1003 4 c-d out of the setback? 10 Is streambank stabilization proposed on this project? NUMBER AND TYPE OF SCUS• 11 Infiltration System 0 12 Bioretention Cell 0 13 Wet Pond 1 14 Starmwater Wetland 0 15 Permeabie Pavement 0 16 Sand Filter 0 17 Rainwater Harvesting RWH 0 18 lGreen Roof 0 Y 19 Level Spreader -Filter Strip LS-F5 0 20 Disconnected Impervious Surface (DIS) 0 21 Treatment Swale 0 22 Dry Pond 0 23 StormFilter _ 0 24 Silva Cell 0 25 113ayfilter 0 26 Filterra 0 FORMS LOADED DESIGNER CERTIFICATION 27 Name and Title: Jeffrey A. Nobles, PE 28 Organization: Larry King & Associates, RLS, PA 1333 Morganton Road, Suite 201 Fayetteville, NO 28305 29 Street address: 30 City, tate, Zip: Phan e numberts]: Email: 31 910-483-4300 32 jnobles@ikanda.com Certification tatement: I certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision; that the information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that the engineering plans, specifications, operation and maintenance agreements and other supporting information are consistent with the information provided here. QQ- CyY T SEAL 3'1459 - °�. E` iQ �X7 �{0 •FP6�YLi076`Rq��,` Iv— �4j - Signa D ign Date DRAINAGE AREAS 1 lis this a high densityproject? Yes 2 If so, number of drainage areas/SCMs 1 3 Is all/part of this project subject to previous rule versions? No FORMS LOADED DRAINAGE AREA INFORMATION Entire Site 1 4 Type of SCM Wet Pond 5 Total BUA in project (sq ft 203606 sf 175113 sf 6 New BUA on subdivided lots (subject to permitting) (sq ft 148000 sf 123000 sf 7 New BUA outside of subdivided lots (subject to rrr s Offsite - total area (sq ft) _ Offsite BUA tsq ft) Breakdown of new BUA outside subdivided lots: Parkin (sq fit- _ Sidewalk (sq ft Roof (sq ft 55616 sf 52113 sf 8 9 10 55616 sf 52113 sf Roadway s ft - Future (sq ft - Other, please specify in the comment box below (sq ft 11 New infiltrating permeable pavement on subdivided lots (sg ft Sf 12 New infiltrating permeable pavement outside of subdivided lots s ft Exisitng BUA that will remain (not subject to ermitting) (sq ft sf 13 sf 14 Existin BUA that is alread ermitted s ft sf 15 Existing BUA that will be removed (sq ft sf 16 Percent BUA 17 Desi n storm inches 1 in 18 Design volume of SCM cu ft 15024 cf 19 Calculation method for design volume ADDITIONAL INFORMATION Please use this space to provide any additional information about the 20 draina a area(s): Simple Method WET POND 1 Drainage area number 1 2: Design volume of SCM (cu ft) EHt_RRL MDC FROM 02H .1050 3 Is the SCM sized to treat the SW from all surfaces at build -out? 15024 cf Yes Yes 4 Is the SCM located away from contaminated soils? What are the side slopes of the SCM (H: V)? 5 3:1 6 _ Does the SCM have retaining walls, gabion walls or other engineered side slopes? No Yes 7 Are the inlets, outlets, and receiving stream protected from erosion (10-year storm)? 8 Is there an overflow or bypass for inflow volume in excess of the design volume? Yes 9 What is the method for dewatering the SCM for maintenance? Pump (preferred) 10 If applicable, will the SCM be cleaned out after construction? Yes 11 Does the maintenance access comply with General MDC (8)? Yes 12 floes the drainage easement comply with General MDC (9)? Yes 13 If the SCM is on a single family lot, does (will?) the plat comply with General MDC (10)? Yes 14 Is there an O&M Agreement that complies with General MDC (11)? Yes 15 Is there an O&M Plan that complies with General MDC (12)? Yes Yes f6 Does the SCM follow the device specific MDC? 17 Was the SCM designed by an NC licensed professional? WET POND MDC FROM 02H .1053 18 Method used 19 Hasa stagelstorage table been provided in the calculations? Yes SAlDA Yes 20 Elevation of the excavated main pool depth (bottom of sediment removal) (fmsl) 162.00 21 Elevation of the main pod bottom -(top of sediment removal) (fmsl) 163.00 22 Elevation of the bottom of the vegetated shelf (fmsl) 167.00 23 Elevation of the permanent pool (final) 167.50 24 Elevation of the top of the vegetated shelf (fmsl) 168.00 25 Elevation of the temporary pool (fmsl) 169.00 26 Surface area of the main permanent pool (square feet) 6969:1 VAolume of the main permanent pool (cubic feet) verage depth of the main pool (feet) 22856 cf h28 3.91 ft Average depth equation used Equation 3 30 If using equation 3, main pool perimeter (feet) 393.0 ft 31 If using equation 3, width of submerged veg. shelf (feet) 3.0 ft 32 Volume of the forebay (cubic feet) 3335 of 33 Is this 15-20% of the volume in the main pool? Yes 34 Clean -out depth for forebay (inches) 42 in 35 36 37 38 Design volume of SCM (cu ft) Is the outlet an orifice or a weir? If orifice, orifice diameter (inches) It weir, weir height (inches) Ifweir, weir length (inches) 15024 cf Orifice 2 in 39 40 wd Draown time for the temporary pool (days) 2.99 41 Are the inlet(s) and outlet located in a manner that avoids short- circuiting? Yes 42 Are berms or baffles provided to improve the flow path? No 43 Depth of forebay at entrance (inches) 60 in 44 1 _ Depth of forebay at exit (inches) 48 in 45 Does water flow out of the forebay in a non -erosive manner? Yes 46 Width of the vegetated shelf (feet) 6 ft 47 Slope of vegetated shelf (H:V) 10:1 48 Does the orifice drawdown from below the top surface of the permanent pool? Yes 49 Does the pond minimize impacts to the receiving channel from the 1- yr, 24-hr storm? Yes Are fountains proposed? (If Y, please provide documentation that 50 MDC(9j is met.) 51 Is a trash rack or other device provided to protect the outlet system? 52 4re the dam and embankment planted in non -clumping turf grass? No Yes Yes 53 Species of turf that will be used on the dam and embankment Bermuda 54 Has a planting plan been provided for the vegetated shel . Yes ADDITIONAL. INFORMATION 55 Please use this space to provide any additional information about the wet pond(s). wet Pond 7 9•s:t non s711A 1-2mn