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HomeMy WebLinkAbout20081810 Ver 1_Stormwater Info_20100317MILLER/PLAYER k". ASSOCIATES 1010 East North Street, Suite A Greenville, South Carolina 29601 Telephone (864)242-0177 Fax (864) 235-1901 e-mail address: mparch@millerplayer.net LETTER OF TRANSMITTAL TO: Division of Water Quality 401 Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699 Telephone: 919-733-1786 We are sending you the enclosed/attached via: Attached _ Fed-Ex X U.S.Mail Other Picked Up _ Hand Delivered: The following items: Shop drawings/Submittals Copy of letter X Plans oB--tBto Date: 3/16/10 Job Number: 207048 Attention: Ian McMillan JOB RE: Village on the Lake II Spring Lake, NC Prints Specifications Change Order Pay Applications Samples X Other (Specify Below) Copies Total No. Sheets to Be Billed Date of Items DESCRIPTION 2 ea Civil and Landscape dw s Sheets C-1 thru C-8 and LS-1 thru LS-4 2 ea. Alta Survey 2 ea. PCN Application PZ.3 .? 2 ea. NWP #29 2 ea. NCDENR approval letter h1AR I 7 20m 2 ea. Bioretention checklist 2 ea. Bioretention cell supplement forms fTLANe`ANDSr ATERBRANCH 2 ea. Outflow pipe flow justification 2 ea. USGS 2 ea. Drainage area map 2 ea. Soils Ma 2 ea. Bioretention Maintenance Agreement 2 ea. Post Construction Stormwater Operations Maintenance Agreement •.-..... ......... ....v •awiiiwaa uJ VIIGN %A UVIVVV. For approval For signature For your use For review & comment X As requested REMARKS: Copy To: Sent By: Alison Brandt/mas ? , COURTESY 1"s i Office Use Only: Form Version March 05 USACE Action ID No. DWQ No. 000- 18 11b (It any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ? Section 404 Permit ? Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ L1401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: NW 29 for residential 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: xU 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: ? If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ? II. Applicant Information 1. Owner/Applicant Information ?jaR 1 ?7 2??? Name: E?akkanad Gardens on the Lake, LL.C Mailing Address:2550 Central Pars Avenue, Suite 204 DENR.WATER W&ITY Yonkers; New York 10710 vVETUM5 'I At CH Telephone Number: [4-703-8070 Fax Number: 914-79-3-86-44 E-mail Address: gregincy aol.com 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name:_Milier Piayer and Associates, in ; Company Affiliation: Architect and Landscape Architect Mailing Address: 1010 E North Street, Suite A Greenville, SoLith Carolina 296,0 Telephone Number: 804-242-107 7 Fax Number: 8_64-235-1 901 E-mail Address: Brandt_alison@milierplayer.net Updated 11/1/2005 Page 5 of 12 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: Village on the Lake 11 2. T.I.P. Project Number or State Project Number (NCDOT Only): Property Identification Number (Tax PIN): 0501-49-08 12 4. Location County: Cumberland Nearest Town: Town of SpringLake Subdivision name (include phase/lot number): Village on the Lake Phase 2 Directions to site (include road numbers/names, landmarks, etc.): Go east on Odell Road turn right(South) onto Laketree Blvd; property on right Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 351791 ON -78.9879 °W 6. Property size (acres): 11.15 Ac 7. Name of nearest receiving body of water: VIello `s Pond -_Lower Little River 8. River Basin: Cape rear (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at httr]: //h2o.enr.state. nc.iisladminimaps/.) 9. Describe the existing conditions on the site and °eneral land use in the vicinity of the project at the time of this application: } he site is currently wooded and drains into Wellon's- fond at a moderate slope. Soils are CaB (Candor San_', Group A, - very permeable Updated 111/2005 Page 6 of 12 10. Describe the overall project in detail, including the type of equipment to be used: There is an existing canal/ditch which drains property across Laketree Blvd to Wellon's Pond. This will be filled and the runoff partially piped. 11. Explain the purpose of the proposed work: The purpose of this work is to provide access to the southern end of the property for apartments and parking. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. N/A V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. No VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: Instaliation of approx. 280` of pipe (1-60" and 1-48" PCP) ending in a headwall. The ditch will then be filled. Updated 11/1/2005 Page 7 of 12 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, Cenarately list imnnctc rlne to hntl, etn,cfi,re and flnnrl;nv Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within loo-year Floodplain es/no Distance to Nearest Stream (linear feet) Area of Impact (acres) not applicable Total Wetland Impact (acres) 3. List the total acreage (estimated) of all existing wetlands on the property: 0 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must he included To rnlnnlntP nrrPneP milt;nN, lan"tl, X .,,;,1t1, t1,o„ A;-;A_ 1- Al cKA Stream Impact Number (indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length (linear feet) Area of Impact (acres) not applicable Total Stream impact (by length and acreage) 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to till, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Name of Waterbody Type of Waterbody Area of Site Number Type of Impact (lake, pond, estuary, sound, bay, Impact (indicate on ma) (if applicable) /t Pond installaiio n and ocean, etc.) (acres) ? ?.,lior;° , Pond/ -fill in and installation of i eadwall - Total Open water impact (acres) - ] 006 Updated 11/1/2005 Page 8 of 12 6. List t he cumulative impact to all Waters of the U.S. resulting from the project; Stream Imp act (acres): Wetland Impact (acres): Open Water Impact (acres): 0.03 Total Impact to Waters of the U.S. (acres) Total Stream Impact (linear feet): 7. Isolated Waters Do any isolated waters exist on the property? ? Yes [X-] No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts.Due to the configuration f the property, approx. 1.20 a-; re isolated and are not usable to the rer ainde=." Jl the o the- prx. jject because of the canal. In, addition the C:..8??gnal enCl pa e ;al tr\X Sfif.I Ce `u i9 a f.k E-°pI 1./! 0.115 ate. which is unusable. If we were unable to iili we would basically lose the use of 1.75 acres. VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. Updated 11/1/2005 Page 9 of 12 USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina (see DWQ website for most current version.). Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. not appiicable 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http h'wwv.nce° .net?`g?a=F '?1?sieulersld v.htn?. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): ?t ap Amount of buffer mitigation requested (square feet): Amount of Riparian wetland mitigation requested (acres): Amount of Non-riparian wetland mitigation requested (acres): Amount of Coastal wetland mitigation requested (acres): Updated 11/1/2005 Page 10 of 12 IX. X. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ? No n 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No ? 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ? No [X] 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multit)liers. Zone* Impact Multiplier Required (square feet) Mitigation 1 3 (2 for Catawba) 2 1.5 Total Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. Updated 11/1/2405 Page I I of 12 XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level exist site - 11.165 ac/0 impervious prop site - 11.16 ac/ 4.43 ac imp = 39%a Due to soil permeability, all runoff will be routed tbru several bioretention ponds for water quality Bldgs - 68,481sf; Streets - 59,500sf; Parking - 54,140 sf; Sidewalks - 10,895 sf = 193,016sf XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. All sewage will be piped to exisiing sanitary sewer at western portion of site. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Fx] Is this an after-the-fact permit application? Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No U If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://l12o.,,nr.sta.te.ne.tis;'ncw ctl.aiidti. If no, please provide a short narrative description: XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Updated 11/1/2005 Page 12 of 12 U.S. ARMY CORPS OF ENG E S WILMINGTON DISTRICT Action ID. SAW-2008-01148 County: Cumberland USGS Quad: Manchester GENERAL PERMIT (REGIONAL AND NATIONWIDE) VE CATION Property Owner: Kakkanad Gardens on the Lake, LI,C Mr. GeorLye Kandank--ularn Address: 2550 Central Park Avenue, Suite 204 Yonkers, NY 10710 Telephone No.: 914-793-8970 Ms. Alison Brandt Diller and Player Associates, Inc. 1010 E North Street, Suite A Greenville, South Carolina 29601 864-242-1077 Size and location of property (water body, road name/number, town, etc.): The Rroiect area is adjacent to Young's Lake/ Wellon's Pond and is located off of Laketree Boulevard between Wilkeshaven Court and Kristin Avenue, in Spring Lake, Cumberland County, North Carolina. Description of projects area and activity: Villggg:otl'th apartment complex. Applicable Law: [D Section 404 (Clean Water Act, 33 USC 1344) ? Section 10 (Rivers and Harbors Act, 33 USC 403) Authorization: Regional General Permit Number: Nationwide Permit Number: 29 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order and/or appropriate legal action This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended or revoked. if, prior to the expiration date identified below, the nationwide, permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless discretionary authority has been exercised on a case-by-case basis to modify, suspend or revoke the authorization. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You should contact the NC Division of Water Equality (telephone (919) 733-1786) to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior to beginning work you must contact the N.C. Division of Coastal Management. This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal, State or local approvals!permits. If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regnzlatory program, please contact Ronnie Smith at 910-251-4829. t Corps Regulatory Official: Ronnie Srnith Date: December 22. 2008 Expiration Date of Verification: December 22, 2010 The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so, please complete the attached customer Satisfaction Survey or visit httn://www.saw.usace.army rnil/VV Tf?AA1;S/i?tdex htttal to complete the survey online. Page 1 of 2 ArlyNorth Carolina Department of Environment and Natural Resources Division of Land Resources James D. Simons, PG, PE Land Quality Section Director and State Geologist December 31, 2009 LETTER OF APPROVAL WITH MODIFICATIONS Kakkanad Gardens on the Lake, LLC Attn: George Kandankulam, Member 2150 Central Park Ave., Suite 204 Yonkers, NY 10710- RE: Project Name: Village on the Lake-Phase II Acres Approved: 724 Project ID: Cumbe-2009-031 County: Cumberland Spring Lake Laketree Blvd River Basin: Cape Fear Stream Classification: Other Submitted By: Miller/Player & Associates Date Received by LQS: 12/29/2008 Plan Type: Revised Dear Mr. Kandankulam: Michael F. Easley, Governor William G. Ross Jr., Secretary This office has reviewed the subject erosion and sedimentation control plan. We find the plan to be acceptable with modifications and hereby issue this letter of Approval With Modifications. The Modifications Required for Approval are listed on the attached page. This plan approval shall expire three (3) years following the date of approval, if no land-disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129. Please be advised that Title 15A NCAC 4B .0118(a) requires that a copy of the approved erosion control plan be on file at the job site. Also, you should consider this letter to give the Notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure compliance with the approved plan. North Carolina's Sedimentation Pollution Control Program is performance-oriented, requiring protection of existing natural resources and adjoining properties. If, following the commencement of this project, it is determined that the erosion and sedimentation control plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statute 113A- 51 through 66), this office may require revisions to the plan and implementation of the revisions to insure compliance with the Act. The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project prior to the commencement of this land disturbing activity. This could include agencies such as the Division of Water Quality's stormwater regulations, their enforcement requirements within Section 401 of the Clean Water Act, the Environmental Protection Agency and/or the U.S. Army Corps of Fayetteville Regional Office 225 Green Street - Suite. 714, Favettevil le, North Carolina 28301 • Phone: 910-433-3300 / FAX: 910-486-0707 Letter of Approval with Modifications Kakkanad Gardens on the Lake, LLC December 31, 2008 Paae 3 of 3 MODIFICATIONS REQUIRED FOR APPROVAL Project Name: Village on the Lake-Phase II Project ID: Cumbe-2009-031 County: Cumberland Specify the outlet width of the apron for Outlet 92 2. Submit two copies of all revised sheets for our files. Memo To Spring Lake Inspections Department From: Byron Blumenfeld, Spring Lake Stormwater Technician Wfw: October 15, 2009 Re: Final Approval of Stonegate Site Plan Stonegate Site Plan is approved by Stormwater. Their application for permit, number SW09/08/002, is approved having been accompanied by notarized general and specific maintenance agreements and full payment of the Storm Water permit fee. The Town is in receipt of one complete set of calculations and the most current set of site plans. The plans and calculations have been reviewed and verified to ensure the following: 1. The site will treat the first 1" of a 24 hour storm. 2. The site can store an adequate amount of rain fall to preclude release in excess of the preconstruction runoff for the 10 year storm. 3. The site treatment will provide 85% TSS removal IAW North Carolina BMP Manual (used as Town of Spring Lake Design Manual). //Signed// Byron Blumenfeld Stormwater Administrator (CE AS) (Certified Stormwater BMP Plans Reviewer) (Level IIIA Designer of Erosion and Sediment Control Plans) Town of Spring Lake 910-436-0241 I ?ID h Permit No: (to be assigned by DWQ) 1111. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. 1. Plans (1" - 50' or larger) of the entire site showing: G _ Design at ultimate build-out, Off-site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Cell dimensions, Pretreatment system, High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), Clean out pipe locations, Overflow device, and Boundaries of drainage easement. ' 2. Plan details (1" = 30' or larger) for the bioretention cell showing: Cell dimensions Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), Design at ultimate build-out, Off-site drainage (if applicable), Clean out pipe locations, Overflow device, and Boundaries of drainage easement. ?v v 3. Section view of the bioretention cell (1" = 20' or larger) showing: Side slopes, 3:1 or lower Underdrain system (if applicable), and Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable), SHWT level(s), and overflow structure] 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. All elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in situ soil must include: Soil permeability, Soil composition (% sand, % fines, % organic), and P-index. 5 A detailed lantin l 1" 20' l . p g p an ( = or arger) prepared by a qualified individual showing: A variety of suitable species, A , Sizes, spacing and locations of plantings, !U( ??- Total quantity of each type of plant specified, XXX \ A planting detail, The source nursery for the plants, and Fertilizer and watering requirements to establish vegetation. 6 A constructi c h . on sequen e t at shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. 7. The supporting calculations (including underdrain calculations, if applicable). fA 4?4 A copy of the signed and notarized operation and maintenance (0&M) agreement. - 9. A copy of the deed restrictions (if required). Form SW401-Bioretention-Rev.3 Part III, Page 1 of 1 Permit Number: (to be provided by DWQ) W ATE9 NCDENR ... -. Y STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. L PROJECT INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #1 Ill. DESIGN INFORMATION Site Characteristics Drainage area 10,241.00 ftz Impervious area 3,170.00 ft2 Percent impervious 31.0% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity 0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 281.50 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 400.00 ft2 OK Length: 20.00 ft OK Width: 20.00 ft OK -or- Radius ft Soils Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil: Soil permeability 5.00 in/hr OK Planting media soil: Soil permeability 1.50 in/hr OK Soil composition • Sand (by weight) 85% OK • Fines (by weight) 10% OK Organic (by weight) 5% OK Total: 100% Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 1 Permit Number: ' (to be provided by DWQ) Phosphorus Index (P-Index) 20 (unitless) OK Basin Elevations Temporary pool elevation 193.00 fmsl Planting elevation (top of the mulch) 192.25 fmsl Bottom of the cell 190.25 fmsl OK Planting depth 2.00 ft Depth of mulch 2.00 inches OK SHWT elevation 186.50 fmsl OK Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? 0 Insufficient number of clean out pipes provided. What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains 0 ft Bottom of the cell required 190.25 fmsl Distance from bottom to SHWT 3.75 ft OK Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with trees/shrubs? N (Y or N) Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? y Y or N) ( ) OK Does volume in excess of the design volume flow evenly distributed through a vegetated filter? y (Y or N) OK What is the length of the vegetated filter? 50 ft Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? y (Y or N} OK Is the BMP located at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? y (Y or N) OK Inlet velocity (from treatment system) 0.38 ftisec OK Is the area surrounding the cell likely to undergo development in the future? n Y or N) ( ) OK Are the slopes draining to the bioretention cell greater than 200/6? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an 7" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 It of grass) x Grassed Swale . OK Forebay Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 1 Permit Number: (to be provided by DWQ) ?: 4v NCDENR .; LLSTORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #2 11. DESIGN' INFORMATION' Site Characteristics Drainage area 33,380.35 ft2 Impervious area 16,049.00 ft2 Percent impervious 48.1% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity 0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 718.34 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 - Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 1000.00 ft2 OK Length: 100.00 ft OK Width: 10.00 ft OK -or- Radius ft Solis Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil: Soil permeability 5.00 in/hr OK Planting media soil: Soil permeability 1.50 in/hr OK Soil composition Sand (by weight) 85% OK Fines (by weight) 10% OK Organic (by weight) 5% OK Total: 100% Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 2 Phosphorus Index (P-Index) Basin Elevations Temporary pool elevation Planting elevation (top of the mulch) Bottom of the cell Planting depth Depth of mulch SHWT elevation Are underdrains being installed? How many clean out pipes are being installed? What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains Bottom of the cell required Distance from bottom to SHWT Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Is this a cell with trees/shrubs? Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? Is the BMP located at least 100 feet from water supply wells? Are the vegetated side slopes equal to or less than 3:1 ? Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? Inlet velocity (from treatment system) Is the area surrounding the cell likely to undergo development in the future? Are the slopes draining to the bioretention cell greater than 20%? Is the drainage area permanently stabilized? Pretreatment Used (Indicate Type Used with an 7" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 ft of grass) Grassed swale Forebay 20 (unitless) OK 191.00 fmsl 190.25 fmsl OK 188.25 fmsl 2.00 ft 2.00 inches OK fmsl Insufficient SHWT level. N (Y or N) { OK Oft 188.25 fmsl #VALUE! ft Y (Y or N) OK N (Y or N) y (Y or N) OK y (Y or N) OK Permit Number: (to be provided by DWQ) #VALUE! ov It n (Y or N) Show how flow is evenly distributed. y (Y or N) OK y (Y or N) OK y (Y or N) OK y (Y or N) OK 0.38 fdsec OK n (Y or N) OK n (Y or N) OK y (Y or N) OK X OK Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 2 of 2 Permit Number: (to be provided by DWQ) y X04. --FRS srrrr ?? 6 °'--? y NCDENR. ° J , _Iltm STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information. I. PROJECT' INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #3 II. DESIGN INFORMATION Site Characteristics Drainage area 51,387.00 ft2 Impervious area 35,678.00 ft2 Percent impervious 69.4% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity 0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 2,974.00 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 4000.00 ft2 OK Length: 80.00 ft OK Width: 50.00 ft OK -or- Radius ft Soils Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil: Soil permeability 5.00 in/hr OK Planting media soil. Soil permeability 1.50 in/hr OK Soil composition % Sand (by weight) 85%o OK Fines (by weight) 10% OK Organic (by weight) 5%o OK Total: 1 DO% Form SW401-Sioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 2 Phosphoru!Ndex (P-Index) Basin Elevations Temporary pool elevation Planting elevation (top of the mulch) Bottom of the cell Planting depth Depth of mulch SHWT elevation Are underdrains being installed? How many clean out pipes are being installed? What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains Bottom of the cell required Distance from bottom to SHWT Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Is this a cell with trees/shrubs? Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? Is the BMP located at least 100 feet from water supply wells? Are the vegetated side slopes equal to or less than 3:1? Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? Inlet velocity (from treatment system) Is the area surrounding the cell likely to undergo development in the future? Are the slopes draining to the bioretention cell greater than 20%? Is the drainage area permanently stabilized? Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (8'inches gravel followed by 3-5 ft of grass) Grassed swale Forebay Form SW401-Bioretention-Rev.3 20 (unitless) OK 193.00 fmsl 192.25 fmsl OK 190.25 fmsl 2.00 ft 2.00 inches OK 186.50 fmsl OK N (Y or N) OK Oft 190.25 fmsl 3.75 ft OK Y (Y or N) OK N (Y or N) y (Y or N) OK y (Y or N) OK Permit Number: (to be provided by DWQ) ou n n (Y or N) Show how flow is evenly distributed. y (Y or N) OK y (Y or N) OK y (Y or N) OK y (Y or N) OK 0.38 ft/sec OK n (Y or N) OK n (Y or N) OK y (Y or N) OK x OK Parts I and II. Design Summary, Page 2 of 2 Permit Number: (to be provided by D WQ) r/ 0 LT TWA NCDENR a Y STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #4 IL DESIGN INFORMATION Site Characteristics Drainage area 32,890.00 ft2 Impervious area 24,541.00 ft2 Percent impervious 74,6% Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity 0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 1,973.00 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 2700.00 ft2 OK Length: 80.00 ft OK Width: 50.00 ft OK -or- Radius ft Soils Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil: Soil permeability 5.00 in/hr OK Planting media soil: Soil permeability 1.50 in/hr OK Soil composition °o Sand (by weight) 85% OK % Fines (by weight) 10% OK °o Organic (by weight) 5% OK Total: 1 o0% Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Phosphorus rdex (P-Index) 20 (unitless) OK Basin Elevations Temporary pool elevation 192.00 fmsl Planting elevation (top of the mulch) 191.25 fmsl OK Bottom of the cell 189.25 fmsl Planting depth 2.00 ft Depth of mulch 2.00 inches OK SHWT elevation 186.50 fmsl OK Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? OK What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and 0 ft the bottom of the cell to account for underdrains Bottom of the cell required 189.25 fmsi Distance from bottom to SHWT 2.75 ft OK Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with trees/shrubs? N (Y or N) Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the y (Y or N) OK bioretention cell? Does volume in excess of the design volume flow evenly y (Y or N) OK distributed through a vegetated filter? What is the length of the vegetated filter? 50 ft Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if y (Y or N) OK SA waters)? Is the BMP located at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a recorded drainage easement with a y (Y or N) OK recorded access easement to a public Right of Way (ROW)? Inlet velocity (from treatment system) 0.38 ft/sec OK Is the area surrounding the cell likely to undergo development in n (Y or N) OK the future? Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 ft of grass) x Grassed swale OK Forebay Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 2 of 2 Permit Number: (to be provided by DWQ) I OF N)A.rFR > y?./{ ARK STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #5 iL ' DESIGN' INFORMATION Site Characteristics ^ ^? Drainage area 11,752.00 ft2 Impervious area 3,077.00 ft2 Percent impervious 26.2% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre-development 1-yr, 24-hr peak flow Post-development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak control Storage Volume: Non-SR Waters Design volume Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff Post-development 1-yr, 24-hr runoff Minimum volume required Volume provided Cell Dimensions Ponding depth of water Ponding depth of water Surface area of the top of the bioretention cell Length: Width: -or- Radius Soils Report Summary Drawdown time, ponded volume Drawdown time, to 24 inches below surface Drawdown time, total: In-situ soil. Soil permeability Planting media soil: Soil permeability Soil composition % Sand (by weight) % Fines (by weight) % Organic (by weight) 3.02 in 0.13 in/hr 0.00 ft3/sec 0.00 ft3/sec 0.00 ft3/sec 274.00 ft3 ft3 - fts 0.00 ft3 -ft3 9.00 inches OK 0.75 ft 400.00 ft2 OK 80.00 ft OK 50.00 ft OK It 12.00 hr OK 36.00 hr OK 48.00 hr 5.00 in/hr OK 1.50 in/hr OK 85% OK 10% OK 5% OK Total: 100% Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) phosphorus Index (P-Index) Basin Elevations Temporary pool elevation Planting elevation (top of the mulch) Bottom of the cell Planting depth Depth of mulch SHWT elevation 20 (unitless) OK 192.00 fmsl 191.25 fmsl OK 189.25 fmsl 2.00 It 2.00 inches OK 186.50 fmsl OK Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? OK What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains 0 It Bottom of the cell required 189.25 fmsl Distance from bottom to SHWT 2.75 ft OK Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with trees/shrubs? N (Y or N) Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell. y (Y or N) OK Does volume in excess of the design volume flow evenly distributed through a vegetated filter? y (Y or N) OK What is the length of the vegetated filter? 50 ft Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? y (Y or N) OK Is the BMP located at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1 ? y (Y or N) OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? y (Y or N) OK Inlet velocity (from treatment system) 0.38 ft/sec OK Is the area surrounding the cell likely to undergo development in the future? n (Y or N) OK Are the slopes draining to the bioretention cell greater than 200/o? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an 7" in the shaded cell) Gravel and grass (8'inches gravel followed by 3-5 It of grass) x OK Grassed swale Forebay Form SW401-Bioretention-Rev.3 Parts I and 11. Design Summary, Page 2 of 2 Permit Number: r (to be provided by DWQ) F U! °'rfi O Y NCDENR. > STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #6 IL DESIGN' INFORMATION Site Characteristics Drainage area 40,590.00 ft2 Impervious area 21,301.00 ft2 Percent impervious 52.5% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity 0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 1,759.00 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 2500.00 ft2 OK Length: 80.00 ft OK Width: 50.00 ft OK -or- Radius ft Soils Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil: Soil permeability 5.00 in/hr OK Planting media soil: Soil permeability 1.50 in/hr OK Soil composition Sand (by weight) 85% OK Fines (by weight) 10% OK Organic (by weight) 5%o OK Total 100% Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 1 of 2 Permit Number: Phosphorus Index (P-Index) 20 (unitless) (to be provided by DWQ) OK Basin Elevations Temporary pool elevation 192.00 fmsl Planting elevation (top of the mulch) 191.25 fmsl Bottom of the cell 189.25 fmsl OK Planting depth 2.00 ft Depth of mulch 2.00 inches OK SHWT elevation 186.50 fmsl OK Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? OK What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting-media and the bottom of the cell to account for underdrains 0 ft Bottom of the cell required 189.25 fmsl Distance from bottom to SHWT 2.75 ft OK Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with trees/shrubs? N (Y or N) Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? y (Y or N) OK Does volume in excess of the design volume flow evenly distributed through a vegetated filter? y (Y or N) OK What is the length of the vegetated filter? 50 ft Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? y (Y or N) OK Is the BMP located at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? y (Y or N) OK Inlet velocity (from treatment system) 0.38 ft/sec OK Is the area surrounding the cell likely to undergo development in the future? n (Y or N) OK Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an 7" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 ft of grass) x Grassed swale OK Forebay Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 2 of 2 Permit Number: (to be provided by DWQ) or, \N A, cc Uj 9 MAMMA&- STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information. L PROJECT INFORMATION Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #7A II. DESIGN INFORMATION Site Characteristics Drainage area 12,486.00 ftz Impervious area 9,606.00 ft2 Percent impervious 76.9% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity .0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 770.00 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 1050.00 ft2 OK Length: 80.00 ft OK Width: 50.00 ft OK -or- Radius ft Soils Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil. Soil permeability 5.00 in/hr OK Planting media soil: Soil permeability 1.50 in/hr OK Soil composition Sand (by weight) 85% OK Fines (by weight) 10% OK Organic (by weight) 5% OK Total: 100% Form SW401-Bioretention-Rev.3 Parts I and 11. Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Phosphorus Index (P-Index) 20 (unitless) OK Basin Elevations Temporary pool elevation 192.00 fmsl Planting elevation (top of the mulch) 191.25 fmsl Bottom of the cell 189.25 fmsl OK Planting depth 2.00 ft Depth of mulch 2.00 inches OK SHWT elevation 186.50 fmsl OK Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? OK What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains 0 It Bottom of the cell required 189.25 fmsl Distance from bottom to SHWT 2.75 ft OK Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with trees/shrubs? N (Y or N) Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? y (Y or N) OK Does volume in excess of the design volume flow evenly distributed through a vegetated filter? Y (Y or N) OK What is the length of the vegetated filter? 50 ft Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? Y (Y or N) OK Is the BMP localed at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? Y (Y or N) OK Inlet velocity (from treatment system) 0,38 ft/sec OK Is the area surrounding the cell likely to undergo development in the future? n (Y or N) OK Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 It of grass) x Grassed Swale OK Forebay Form SW401-Bioretention-Rev.3 Parts I and 11. Design Summary, Page 2 of 2 r NC ENR Permit Number: (to be provided by D WQ) a?F WATe O e STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. Project name VILLAGE ON THE LAKE - PHASE TWO Contact name Alison Brandt Phone number 864 242 177 Date July 29, 2008 Drainage area number BIO #8 IL FORMATION Site Characteristics Drainage area 66,780.00 ft2 Impervious area 47,592.00 ft2 Percent impervious 71.3% % Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr, 24-hr runoff depth 3.02 in 1-yr, 24-hr intensity 0.13 in/hr Pre-development 1-yr, 24-hr peak flow 0.00 ft3/sec Post-development 1-yr, 24-hr peak flow 0.00 ft3/sec Pre/Post 1-yr, 24-hr peak control 0.00 ft3/sec Storage Volume: Non-SR Waters Design volume 3,840.00 ft3 Storage Volume: SR Waters Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0.00 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9.00 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 5150.00 ft2 OK Length: 100.00 ft OK Width: 37.00 ft OK -or- Radius ft Soils Report Summary Drawdown time, ponded volume 12.00 hr OK Drawdown time, to 24 inches below surface 36.00 hr OK Drawdown time, total: 48.00 hr In-situ soil: Soil permeability 5.00 in/hr OK Planting media soil: Soil permeability 1.50 in/hr OK Soil composition % Sand (by weight) 850/o OK % Fines (by weight) 10% OK % Organic (by weight) 5% OK Total: 100% Form SW401-Bioretention-Rev.3 Parts I and Il. Design Summary, Page 1 of 2 Permit Number: • (to be provided by DWQ) Phosphorus Index (P-Index) 20 (unitless) OK Basin Elevations Temporary pool elevation 192.00 fmsl Planting elevation (top of the mulch) 191.25 fmsl Bottom of the cell 189.25 fmsl OK Planting depth 2.00 ft Depth of mulch 2.00 inches OK SHWT elevation 186.50 fmsl OK Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? OK What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains 0 ft Bottom of the cell required 189.25 fmsl Distance from bottom to SHWT 2.75 ft OK Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with trees/shrubs? N (Y or N) Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? y (Y or N) OK Does volume in excess of the design volume flow evenly distributed through a vegetated filter? y (Y or N) OK What is the length of the vegetated filter? 50 It Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if ? SA waters). y (Y or N) OK Is the BMP located at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? y (Y or N) OK Inlet velocity (from treatment system) 0.38 ft/sec OK Is the area surrounding the cell likely to undergo development in the future? n (Y or N) OK Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 It of grass) x Grassed swale OK Forebay Form SW401-Bioretention-Rev.3 Parts I and II. Design Summary, Page 2 of 2 _ _ _ _ _. 7 .. ? ) ?^ +. ^-'^w ?.?^..?6?,..????f?, /??°PEC'' ?t?:?--P_'Lf'?LC.? T", i ..-. ..., r"? `??t '???°?,?.r"?' ..•N( ? ?r2? t/ ?.? c ? .?'`.s ri . ,? -_. 2 ?r? ; r?. ??f ??.?? ??? r` ,1 ?, ? ???.. , ..??t??? V i I ?Ilt . -.i 1 11 «g t{ Y !M'@ITN r s F i ? '@GfZNY:538 !? noanma i / i / gyp/ / { 1 { / I At I / i i t At 1 11 1 I ?I 1 I I i I i 1 I ? I 11 I ; I I ? I I 'a I 1 { 1 I ? '? 1 Lg?y I ? 1t R4` i i / yO? 4 " N N n 35° 10' 52" oo r Hydrologic Soil Group (Village on the Lake 2) in D) N 0 N -r 68310 Fd? )U i4 5 i o` 35"10'37" t3, m 0 0 N Map Scale: 1:2,260 i pnnted onA size (B.S x 11") sheet in o Meters A 0 20 40 &l 120 N Feet 0 50 100 200 300 USDA Natural Resources Web Soil Survey 2.1 Conservation Service National Cooperative Sal Survey 7 S 35° 10'52" II I I ! I I t I ? b b m 0 m M 35° 10' 37" it N 12/3/2008 Page 1 of 4 ro .O `ro U L C) O z T O N UY ? ro C -J ro N L L C E O U rn i ro o- o ? C7 0 m U CD O O T g a ro o O C v N E a) ? `° `v .O N m N ro m O ro ro o U a ?= ro C O O N C 6 C E r a N i NO a 0 - U m n z O X E m m m ro C M i U (O O L N L= in C6 0 3: 0 a- °' CD °° r- Z . ° °° Z v ? E O o m y m N O Q E .C U aZ N N Z D (n c$ 7 N s CL m C N N d ? y. N j 0 U U .0 - CD - 4) U 7 p) ° 4--CX .- - o O LL. ° m = ? c ? O -D ' ? ° ro ° c - CD E Z Z m w 'a ° N aN ?Lg E °? m ro 0 o L m E d ma E EEp c? m ?' J vv E 0) °0 ?E CL c •.- ° to s a) m ro za E ro in c U M rn L m C d °- ° `m N N y T w N. C T W O- ? ?? (D ti- CD a) L ? Yff m 20 E 0 g) 0) O 'O O ai y > y ., o c >^ , ca zU j m a -0 = c Q y m io 'y ov -a.0, -a.0, a m es r ?p Uj O d o 01 7 0 ca N (? v o Z¢ > >, ro N v (D T a fl. fq a) N /!1 ro ro om r' C 7 L `O ? n 0 t/1 (!J N Z N O -a O ro O Ol L- F n . E c°n ?i U 1L L am. c°n ( o O FL- Pi o O a W ? C W T z W " W ^ Q C 16 = d a a) y U) s Q (L ¢ m e a d m co v v N o z° «' C ca L O in c p L w cly g c 0 0 0 0 0 0 ? LL V 0 ? LL C tl! ° ?. (} I C w ? d v i ° a my 8-0 N N c7 a4) a T a) z r? N "O d M z > U) 2 = O 0 a- (n O d O vU m c 0 ro z v N •Z m CO) c y O W m 3 N is O zU Hydrologic Soil Group-Cumberland County, North Carolina Hydrologic Soil Group Village on the Lake 2 Hydrologic Soil Group- Summary by Map Unit - Cumberland County, North Carolina Map unit symbol Map unit name Rating Acres in AOI Percent of AOI CaB Candor sand, 1 to 8 percent slopes A 13.3 45.3% FuB Fuquay sand, 0 to 4 percent slopes B 0.5 1.6% GdB Gilead loamy sand, 2 to 8 percent slopes C 7.7 26.3% TR Torhunta and Lynn Haven soils C 2.9 9.8% W Water 5.0 16.9% Totals for Area of Interest 29.2 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, BID, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (Alp, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. USDA Natural Resources Web Soil Survey 2.1 1213/2008 21111111 Conservation Service National Cooperative Soil Survey Page 3 of 4 Hydrologic Soil Group-Cumberland County, North Carolina Rating Options Aggregation Method. Dominant Condition Component Percent Cutoff.' None Specified Tie-break Rule: Lower Village on the Lake 2 uSUA Natural Resources Web Soil Survey 2.1 12/3/2008 '11111111111 Conservation Service National Cooperative Soil Survey Page 4 of 4 STORP TI A T E R BMP MAIN T ENANC E AGREEMENT 17 BIORET N T ION PR of CT: iii-age tan the Lake Apartments - Phase Two k ESP'ONSIBLE P_A-RTC': ICakkanad Gjnd2nc on *hp t ake 1 f :A.DDR,SS: 2150 Central Park Avenue, Suite 204; Yonkers, NY 10710 PHONE: 1) Monthly or after every significant runoff producing rainfall event: a) Remove debris and trash from the biorention area. b) Check and repair any eroded areas. c) Remulch any void areas. d) Check vegetation conditions within the bioretention area and replace any damaged plant materials as necessary. e) Inspect for ponding, washed out areas, and soil conditions. 2) Quarteriv a) Inspect the collection system for proper functioning. b) Repair any broken pipes. c) Replace rip rap that is choked with sediment. 3) A.tznuall v a) Reseed grass Swale or border. b) Apply new mulch. 4) General a) All components of the system to be kept in good worlanP order. b) In case the ownership of the property transfers, the current owner shall, within 30 working days of transfer of ownership, notify the Town of Spring Lake Stormwater Department of such ownership transfer. . If the current owner fails to notify,, the Town of Spring Lake Stonnwater Department of ownership transfer, the responsible party in this agreement will remain liable for all stormwater management costs and maintenance. c) This property and impoundment is also subject to the Post-Construction Stormwater Operation and Maintenance Agreement filed with the Town of Spring Lake Storiinwater Department in relation to this project. I, George K a n d a n k u l a m hereby acknowledge am responsible for the maintenance procedures listed above, and agree that I Signature: Date: -Se P temb-r 25 2008 I. Mary Ann Skelton a Notary Public for the State of South Caroina JO f'3.eJV cerut rat George ICandani,uIam -)I S'p?, G3 r <? 14??`r i11SEr111'• .. _. %'t ]tz C 77: !;a 1 iI2? I: al s?rl ell conimishon Apires: Qc-Tour- ,{ ZOI? .f Counr:' Of Greenvl l' e ersonaLi- appearcd ire ore P0S7-`0NS T .TJ T10N ST01?Y'V%A T ER OPERATION AND MAiI`47EN 4NCE .OP\_EEMENT THIS A GREEME'NT.. made. and entered Into this the 15thd2v o?seat. . 2008 by and between The Town of Spring Lak, and Kai<kanad Gardens on the Lake, LLC hereinafter referred to as Owner. VY7ITwESSETIHI THAT WHEREAS, Owner is this day accepting responsibility for the stornnwater device(s) installed on that certain real property known as Village on the Lake - Phase Two, as shown on the plat thereof recorded in the Book of Maps 3411, Page 15011 Cumberland County registry; and ` WHEREAS, as a part of the construction of the residence/development the Town of Spring Lake Stormwater Department rewired that a stonnwater device(s) be constructed: and WHEREAS, the Owner accepts responsibility for the maintenance of the stonnwater devices(s) as prescribed in the Storrnwater BMP Maintenance Agreement signed and notarized, dated ot. 25, 2008 ; and WHEREAS, the Owner `rants access to the Town of Spring Lake to inspect the stomawater device(s) ; and WHEREAS.. the Owner understands that this agreement shall endure to the benefit of his successors in title, whomever they may be in the future. NOW, THEREFORE, it is understood and agreed by and between the parties: The maintenance of the stormwater device(s) shall be the sole responsibility of the Owner. ?. The responsibility for maintenance of the stonmwater device shall pass in the chain of title to the owner's successor in interest. 3. Access is `ranted to the Town of Spring Lake to inspect the stonnwater device(s). 4. Aiuzually, the Owner shall provide an inspection report from a licensed professional to occur each year beginning on and on the day of each successive thereafter. This report. should be sent to the Town of Spring Lake, Attention: Storrnwater Department. Failure to comply with this agreornent will deem the property to be out of compliance with The Town of Sarin` Lake's Post-Construction Stormv titer ordinance and subject to all provisions and penalties contained therein. Owner: r'°'P' 25. 1009 Marv Ann k2'.*on ?'uuth Carolina 'Rubllc, 3or the Sial° o County' of Greenville dOlleieo}'C-1II}'that Georce Kandankulam personalh appeared before 111-1 tl1iS 2 5 t h da}, of Sept . 2008 and aclnowledge due eNecuiion of the foregoiFIg instl ti111-1i1t. %itness my hand and official seal, I A,'` - -?, I rr 6. My commission expires: _Gc7o ? c r ?3 z®15