Loading...
HomeMy WebLinkAboutSW7080110_CURRENT PERMIT_20080310STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYM M D D it A TlC9 Michael F. Easley, Governor ''��QG William G. Ross Jr., Secretary rNorth Carolina Department of Environment and Natural Resources —i Coleen H. Sullins, Director Division of Water Quality March 10, 2008 Mr. Atul Parmar 3455 MILK Boulevard New Bern, NC 28562 Subject: Stormwater Review SW7080110 Candlewood Suites Redevelopment Stormwater Permit Craven County Dear Mr. Parmar: The Washington Regional Office received a complete Stormwater Management Permit Application for Candlewood Suites on January 18, 2008. 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. We are forwarding Permit No. SW7080110 dated March 10, 2008, for the construction of the subject project. 11-13a 6-1 This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions and limitations as specified therein. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. 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 either Ernest Odei-Larbi or me at (252) 946-6481. incerel , s 1 Al Hodge Regional Supervisor Surface Water Protection Section AH/eol: J:\WPDATA\WQS\ State SW-EOL\Permits — Redevelopment cc: Daniel W. Blackburn (Blackburn Consulting Engineering, 305 East Main St., Clayton, NC 27520) WCrven County Planning/Inspection ashington Regional Office Central Office Noah Carolina Division of Water Quality Internet: uNvw.ncwateraualitv.ore One 943 Washington Square Mall Phone (252) 946-6481 NO Carolina Washington, NC 27889 Fax (252) 946-9215 /� /Rurally An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper G� � State Stormwater Management Systems Permit No. SVV7080110 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT REDEVELOPMENT PERMIT 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 Mr. Atul Parmar Candlewood Suites Craven County FOR THE redevelopment of existing impervious surfaces and treatment of the runoff in five bioretention basin and a wet detention pond in compliance with the provisions of 15A NCAC 2H.1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications, and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. The Permit shall be effective from the date of issuance until March 10, 2018 and shall be subject to the following specific conditions and limitations: I: DESIGN STANDARDS 1. The proposed built -upon area is 83310 square feet, which is less than the 127,195 square feet that previously existed. 2. To the extent practicable, the project has provided stormwater control measures in accordance with the stormwater rules. Those control measures are: a. Five Bioretention basins and a Wet detention pond b. Those measures as more fully described in Section 1.5 and 1.6 of this permit. 3. Approved plans and specifications for projects covered by this permit are incorporated by reference and are enforceable parts of the permit. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 2 State Stormwater Management Systems Permit No. SW7080110 5. 0 The following design criteria have been provided in the bioretention area and must be maintained at design condition: D #4 a. Drainage Area, acres: 0.28 b. Total Impervious Surfaces, ft2: 9,326 C. TSS removal efficiency: 85% d. Bioretention Depth, inches: 36.0 e. Temporary Ponded Depth Elev., FMSL: 22.0 f. Bioretention Planting Elevation, FMSL: 21.0 g. Bioretention Surface Area, ft2: 915 h. Permitted Storage Volume, ft3: 753 i. Minimum Required Volume, ft3: 753 j. Receiving Stream/River Basin: k. Stream Index Number: I. Classification of Water Body: D#5 D#6 D#7 D#8 0.19 0.21 0.36 0.67 6.339 7,427 11,893 20,540 85% 85% 85% 85% 36.0 36.0 36.0 36.0 22.0 22.0 22.0 22.0 21.0 21.0 21.0 21.0 655 743 1,163 2,604 508 590 956 1653 508 590 956 1653 Wilson Creek 27-101-2 "C; Sw, NSW" The following design criteria have been provided in the wet pond and must be maintained at design condition: a. Receiving Stream: b. Classification of Water Body: C. Drainage area, acres: d. Total Impervious allowed on site, sf: e. Wet Pond Average Depth, ft: f. Required Storage Volume, cf: g. Provided Storage Volume, cf: h. Required Surface Area, sf: I. Provided Surface Area, sf: j. Controlling Orifice: k. Temporary Storage Elevation, ft: Wilson Creek C; Sw; NSW 1.01 27,785 3.093 2,281 3,124 3,253 5,414 1" diameter @ elevation 18 ft. 18.5 3 State Stormwater Management Systems Permit No. SW7080110 II. SCHEDULE OF COMPLIANCE 1. The permittee shall at all times provide adequate erosion control measures in conformance with the approved Erosion Control Plan. 2. The permittee shall submit all information requested by the Director or his representative within the time frame specified in the written information request. 3. The permittee shall construct the stormwater control measures as shown on the approved plans. 4. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency including, but not limited to: a. Semi-annual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of side slopes. d. Immediate repair of eroded areas. e. Debris removal and unclogging of outlet structure, orifice device, catch basins and piping. 5. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to the approved plans, regardless of size. b. Project name change. c. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision, acquisition, or selling of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval was sought. 6. The Director may determine that other revisions to the project should require a modification to the permit. 7. 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 revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS 1. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Water Quality, in accordance with North Carolina General Statutes 143-215.6A to 143-215.6C. 2. The permit issued shall continue in force and effect until revoked or terminated. 3. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance, or termination does not stay any permit condition. 4. 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 as allowed by the laws, rules, and regulations contained in Title 15A of the North Carolina Administrative Code, Subchapter 2H.1000; and North Carolina General Statute 143-215.1 et. al. 5. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any additions, deletions or redesign of the previously permitted amount of built -upon area proposed regardless of the size of the modification. 4 State Stormwater Management Systems Permit No. SW7080110 6. The permit is not transferable except after notice to and approval by the Director. The Director may require modification or revocation and reissuance of the permit to change the name and incorporate such other requirements as may be necessary. A formal permit request must be submitted to the Division of Water Quality accompanied by the appropriate fee, documentation from both parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits, and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Director approves the transfer request. 7. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state and federal) which have jurisdiction. 8. The permittee grants permission to DENR Staff to enter the premises during normal business hours for purposes of inspecting the facility. 9. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days. 10. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. Permit issued this the 10th day of March 2008. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7080110 State Stormwater Management Systems Permit No. SW7080110 Designer's Certification (1) Wet Detention Pond (5) Bio-Retention Basins Candlewood Suites Redevelopment Stormwater Permit Craven County I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: SEAL Signature Registration Number Date State Stormwater Management Systems. Permit No. SW7080110 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. _3. All the built -upon area associated with the project is graded such that the runoff drains to the system. _4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. _6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. _8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. _10. The inlets are located per the approved plans and do not cause short-circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. _12. Required drawdown devices are correctly sized per the approved plans. _13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ, Washington Regional Office Craven County Building Inspections 7 Permit Number: S IAI 16 g0 110 (to be provided bV DWQ) Drainage Area Number: Wet Detention Basin Inspection and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will 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 removal efficiency of the BMP. The wet detention basin system is defined as the wet detention basin, RECEIVED pretreatment including forebays and the vegetated filter if one is provided. , li 1(_�, This system (check one): JAN 18 2000 ❑ does ® does not incorporate a vegetated filter at the outlet. fl,tgl('1_W/t R® This system (check one): �dNY`aC /9 ❑ does [does not incorporate pretreatment other than a forebay. 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 inspection 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: Potentialproblem: How l will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximately six inches. Form SW401-Wet Detention Basin I&M-Rev.2 Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate the roblem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the swale sediment off -site. The pipe is cracked or Replace the pipe. otherwise dammed. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if - original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to revent future erosion 2roblems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. 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. (Nees are present Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible. Remove the sediment and storage depth. dispose of it in a location where it will not cause impacts to streams or the BMP. Algal growth covers over Consult a professional to remove 50% of the area. and control the al al growth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. Form SW401-Wet Detention Basin I&M-Rev.2 Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How l will remediate theproblem: The embankment Shrubs have started to grow on the embankment. Remove shrubs immediately. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. The outlet device Clogging has occurred. - Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged Re air or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. 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. When the permanent pool depth reads 9.0_ feet in the main pond, the sediment shall be removed. When the permanent pool depth reads feet in the forebay, the sediment shall be removed. Sediment Removal Bottom BASIN DIAGRAM 6611 in the blanks) I .0 Pe maven Pool --�---------- Volume Sediment Storage FOREBAY Pemtanent Pool Elevation 09-0 Sediment Removal Elevation 19° • 00 ------------------------------------ Bottom Elevation MAIN POND 1-ft Storage Form SW401-Wet Detention Basin I&M-Rev.2 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name: 0,4tJOLtWOOD 5ul7-1ES 6MP drainage area number: Print name: A114L 19AID—mAt2 Title: OW M 6fL Date:_Lt 11-000 Note: The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and a resident of the subdivision has been named the president. I, IedJ.A 06- /-7A r mtly , a Notary Public for the State of N C , County of e," re �/ , do hereby certify that f41z, / f arm-e personally appeared before me this �1 day of Ta,✓ 040� , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official SEAL My commission expires Z411 Ao // Form SW401-Wet Detention Basin I&M-Rev.2 RECEIVE 110 Permit Number: SW 7y o JAN 18 200E (to be provided by DWQ) Drainage Area Number: �T S ®W( -WA ion Inspection and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will 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 removal efficiency of the BMP. Important inspection and maintenance procedures: — Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). — Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. — Heavy equipment will NEVER be driven over the bioretention cell. — Special care will betaken to prevent sediment from entering the bioretention cell. — Once a year, a soil test of the soil media will be conducted. After the bioretention cell is established, I will inspect it 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 inspection and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problems: Flow I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the bioretention cell Areas of bare soil and/or erosive gullies have formed. Regrade the soil if necessary to remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. The inlet device: pipe, stone verge or swale The is Reriftee tile pip pipe elftelted 01 -turf Matting of Firrar to fivaid Stone verge is clogged or covered in sediment (if applicable). Remove sediment and clogged stone and replace with clean stone. Form SW401-Bioretention I&M-Rev.2 Page 1 of 4 BMP element: Potentialproblems: How I will remediate the roblem: The pretreatment area Flow is bypassing Regrade if necessary to route all pretreatment area and/or flow to the pretreatment area. gullies have formed. Restabilize the area after grading. Sediment has accumulated to Search for the source of the a depth greater than three sediment and remedy the problem if inches. possible. Remove the sediment and restabilize the pretreatment area. 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. The bioretention cell: vegetation Best professional practices show that pruning is needed Prune according to best professional practices, to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, - etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessar . Tree stakes/wires are present Remove tree stake/wires (which six months after 21anting. can kill the tree if not removed). The bioretention cell: soils and mulch Mulch is breaking down or has floated away. Spot mulch if there are only random void areas. Replace whole mulch layer if necessary. Remove the remaining much and replace with triple shredded hard wood mulch at a maximum depth of three inches. Soils and/or mulch are Determine the extent of the clogging clogged with sediment. - remove and replace either just the top layers or the entire media as needed. Dispose of the spoil in an appropriate off -site location. Use triple shredded hard wood mulch at a maximum depth of three inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that Dolomitic lime shall be applied as pH has dropped or heavy recommended per the soil test and metals have accumulated in toxic soils shall be removed, the soil media. disposed of properly and replaced with new Dlantinq media. Form SW401-Bioretention I&M-Rev.2 Page 2 of 4 BMP element: Potentialproblems: How I will remediate the -problem. The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off -site. The drop inlet is damaged Repair or replace the drop inlet. The receiving water Erosion or other signs of damage have occurred at the outlet. Contact the NC Division of Water Quality 401 Oversight Unit at 919- 733-1786. Form SW401-Bioretention I&M-Rev.? Page 3 of 4 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name: j!�AN19L6Li00F,> SuI S BMP drainage area number: -4, rj , (!�o Print name: A'ffAL- PAZMAIZ. Note: The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and a resident of the subdivision has been named the president. I, Lea4 �0ir.tow,Ow // , a Notary Public for the State of Ale County of /fix y , do hereby certify that /*fu/ personally appeared before me this 11r1h day of CRD! , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, gan My commission expires_ m-�//Xt e // Form SW401-Bioretention IRM-Rev. 2 Page 4 of 4 DN'Q USE ONLY Date Received Fee Paid Permit Number J AN 18 -D..00 8 So$ S W 7o 8o I l a State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This tot in may he photocopied for rise as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): 3. Mailing Address for person listed in item 2 above: City: New Bern State: NC Zip: 28562 Phone: ( 252 ) 259-1575 Fax: ( 252 ) 638-2038 Email: parmaratul@yahoo.com 4. Project Name (subdivision, facility, m establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): 5. Location of Project (street address): City: 6. Directions to project (from nearest major intersection): Southeast corner of US17 and NC43 County:Craven 7. Latitude:35d 05' 53" N Longitude:77d 05' 55" W of project 8. Contact person who can answer questions about the project: Name:Daniel W. Blackburn Telephone Number: ( 919 ) 553-2900 Email:dblackburii mindsoring.com It. PERMIT INFORMATION: 1. Specify whether project is (check one): ®New ❑Renewal ❑Modification Form SWU-101 Version 8.07 Pa,,e I ofd 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its issue date (if known) 3. Specify the type of project (check one): ❑I..ow Density ®High Density ®Redevelop ❑General Permit ❑Universal SMP ❑Other 4. Additional Project Requirements (check applicable blanks): ❑LAMA Major ®Sedimentation/Erosion Control ❑404 401 Permit / ®NPDESStonnwatcr Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project . All existing buildings and pavement shall be removed The redevelopment is to be clone in 2 phases with a total increase in imperviousness of 3176 sf. All runoff from developed areas shall be treated Areas north of proposed building will be treated by bioretention and runoff from building and area south will be treated by wet detention 2. Stormwater runoff from this project drains to the Neuse River basin. 3. Total Site Area: 2.918 acres 4. Total Wetlands Area: 0 acres 5. 100' Wide Strip of Wetland Area: acres (not applicable i%tio zoetlan(ls exist on site) 6. Total Project Area**:2.918 acres 7. Project Built Upon Area: 65.94 % 8. How many drainage areas does the project have? 6 9. 9. Complete the following information for each drainage area. If there are more than two 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 .415 Receiving Stream Name Wilson Creek Wilson Creek Stream Class & Index No. C; Sk4r; NSLN C; SW; NSW Drainage Area (so 12,319 7,862 Existing Impervious* Area (so to be removed to be removed Proposed Impervious*Area (so 9,326 6,339 Impervious' Area (total) 75.7% 80.6% Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings (so On -site Streets (so On -site Parking (so 8,627 5,596 On -site Sidewalks (so 699 743 Other on -site (so Off -site (sf) Total (so 9,326 6,339 impervious area is detured as the built upon area including, but not limited to, buildings, roads, parking areas, side-ivalks, gravel areas, etc. Form SWU-101 Version 8.07 Page 2 o1`4 Basin Information Drainage Area 1(p Drainage Area 2 Receiving Stream Name Wilson Creek Wilson Creek Stream Class & Index No. C; SW; NSW C; SW; NSW Drainage Area (so 9,335 15,694 Existing Impervious` Area (so to be removed to be removed Proposed Impervious*Area (so 7,427 11,893 % Impervious' Area (total) 79.6% 75.8% Impervious* Surface Area llrainage Area 1 Drainage Area 2 On -site Buildings (so 3,146 On -site Streets (sf) On -site Parking (so 7,097 8,591 On -site Sidewalks (so 330 226 Other on -site (so Off -site (so Total Total (so: 7,427 11,893 Basin Information Drainage Area 1 -g Drainage Area 2 .'t:V+Z Receiving Stream Name Wilson Creek Wilson Creek Stream Class & Index No. C; SW; NSW C; SW; NSW Drainage Area (so 29,175 43,717 Existing Impervious* Area (so to be removed to be removed Proposed Impervious*Area (so 20,540 27,785 % Impervious' Area (total) 70.4% _ 63.6% Impervious* Surface Area Drainage Area 1 g Drainage Area 2 On -site Buildings (so 3,120 fr 664 On -site Streets (sf) On -site Parking (so 111-16 1!rZ4cA On -site Sidewalks (so 238 872 Other on -site (so Off -site (so Total (so: 20,540 27,785 Impervious area is defined as the built upon area including, but not limited to, builydirigs, reads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 8.07 Paget of **Total project area shall be calculated based on the current policy regarding inclusion ofzoetlmr(is in the built upon area percentage calculation. 10. How was the off -site impervious area listed above derived? No offsite drainage is directed to site IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the following deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment. Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required in the above form, 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 State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below, must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SW401-Low Density Form SW401-Curb Outlet System Form SW401-Off-Site System Form SW401-Wet Detention Basin Form SW401-Infiltration Basin Form SW401-Infiltration "french Form SW401-Bioretention Cell Form SW401-Level Spreader Form SW401-Wetland Form SW401-Grassed Swale Form SW401-Sand Filter Low Density Supplement Curb Outlet System Supplement Off -Site System Supplement Wet Detention Basin Supplement Infiltration Basin Supplement Underground Infiltration Trench Supplement Bioretention Cell Supplement Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Constructed Wetland Supplement Grassed Swale Supplement Sand Filter Supplement Form SWU-101 Version 8.07 Page 3 of4 Vl. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the interactive online map at htto__!h_o.�nr.stnic.nc,usrsq�n _i_tnap._limi) Please indicate that you have provided the following required information by initialing in the space provided next to each item, Initials • Original and one cope/ of the Stormwater Management Permit Application Form Dw 8 • Original and one copy of the Deed Restrictions & Protective Covenants Form &A • Original of the applicable Supplement Fonn(s) and 0Ki\4 agreement(s) for each BMP OLJA • Permit application processing fee of,$505 ($4,000 for Express) payable to NCDENR Dwb • Calculations & detailed narrative description ofstormwater treatment/management _ DW6 Copy of any applicable soil report pt,rg Three copies of plans and specifications (sealed, signed & (1ated), including: VwA - Development/Project name - Engineer and firm - Legend - North arrow Scale Revision number & date Mean high water line Dimensioned property/project boundary Location map with named streets or NCSR numbers Original contours, proposed contours, spot elevations, finished floor elevations Details of roads, drainage features, collection systems, and stormwater control measures Wetlands delineated, or a note on plans that none exist Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations Drainage areas delineated Vegetated buffers (where required) VII. AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm): Blackburn Consulting Engineering Mailing Address: 305 East Main Street City: Clayton State:_NC Zip: 27520 Phone: ( 919 ) 553-2900 Fax ( 919 ) 553-7298 Email dblackburn @iiiindspring.com VIII. APPLICANT'S CERTIFICATION 1, (print or type nnnre of person listed in General Inlbrnmtion, item 2) Atul Porrnar , certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project wi e onstructed in conformance with the approved plans, that the required deed restrictions and protecfive co ants will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H .1000 Signatu CW A.\ UV-- Form SWU-101 Version 8.07 Pa�,c 4 of 4 DateI / 4� /OF f -7 State Stormwater Management Systems Permit No. SW7080110 Designer's Certification (1) Wet Detention Pond (5) SiD-Retention Basins Candlewood Suites Redevelopment Stormwater Permit Craven County I, Q0 8[A44Bu" , as a duly registered PRAFt )JAL. &Qb/££i' in the State of North Carolina, having been authorized to observe (periodically/ voQQkiyk*Rime) the construction of the project, --(2Ar/QX1--,)oop Gc4lTi`5 (Project) for kI ttL PAC MA C (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: I ) The soil media in the bioretention basins is not in total agreement with the soil specifications. Per the "Particle Size Distribution Report," the percentage of fines is lower than specified. The specification was for sand to be 85% of the mix. The actual soil was 97% sand. However there is significant amount of fine sand. Only 3% passes the B200 sieve (fines) but 15% passes the N 100 sieve. The permeability results for two tests were 0.81 and 1.3 inches per hour. This is on target for the specified permeability. The P-index is 25, which is also within the specified range. While the soil does not meet the specific soil mix, it does meet the performance requirements. 2) The wet detention pond has been built in substantial compliance with the plans and specifications. The only concern is that the vegetation has not taken root and become established. In particular the grass has been seeded but not yet established. The "Wet Detention Basin inspection and Maintenance Agreement' requires the owner to insure that the vegetation becomes established and is maintained. CAR Signature 1� .��� `pQS�SSSIC Registration Number IG9491le _ -a SEA L 9486 Date State Stormwater Management Systems Permit No. SW7080110 Certification Requirements: ✓ 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. ✓ 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10, The inlets are located per the approved plans and do not cause short-circuiting of the system. ✓ 11, The permitted amounts of surface area and/or volume have been provided. ✓12. Required drawdown devices are correctly sized per the approved plans. Z13. All required design depths are provided. 14, All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans - cc: NCDENR-DWQ, Washington Regional Office Craven County Building Inspections