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HomeMy WebLinkAbout20070295 Ver 2_401 Application_2007090707- a~~5 ~~ TIC JOHN R McADAMS COMPA,I~TY, INC. LETTER OF TRANSMITTAL To: Ms. Cyndi Karoly Date: September 21, 2007 NC Division of Water Quality 1650 Mail Service Center Raleigh, North Carolina 27699-1650 (919) 733-9721 Re: Holding Village I am sending you the following item(s): **REGULAR MAIL** Job No.: EWP-06040 COPIES DATE NO. DESCRIPTION 1 Ori final PCN Submittal w/exhibits 6 Co ies of PCN Submittal w/exhibits 1 Ori final si nature O&M maintenance a reement 2 Copies of signed O&M maintenance agreement These are transmitted as checked below: ^ As requested ^ For approval ^ For review and comment Remarks: ,+ c; .: •~ ri ® For your use ~~ -r ,~ -~ L00! Copy to: Signed: ~~J ~~. _ J. Kevi ates Sr. Environmental/Wetland Scientist FOR INTERNAL USE ONLY ^ Copy Letter of Transmittal Only to File ® Copy Entire Document to File CIVIL ENGINEERING LAND PLANNING SURVEYING PO Box 14005 Research Triangle Park, NC 27709 (919) 361-5000 fax (919) 361-2269 www.johnnncadams.com HOLDING VILLAGE -Wake Forest, NC LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT LEVEL SPREADERS: 1-6 The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff. Maintenance activities shall be performed as follows: 1. After construction and until vegetation has been established, level spreaders(s) shall be inspected after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more frequently during the fall season and after heavy rainfall events: a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required. b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and concentrated flows downhill from the level spreader(s). c. A level elevation shall be maintained across the entire flow-spreading structure at all times. Repair or replace the level spreader if it is damaged. d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the level spreader surface. e. Repair eroded areas and replace/replant dead or damaged vegetation. 2. The contractor should avoid the placement of any material on and prevent construction traffic across the structure. If the measure is damaged by construction traffic, it shall be repaired immediately. 3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year to maintain proper functioning. NOTARIZED SIGNATURE ATTACHED Page 1 of 2 As the appointed agent for the owner I acknowledge and agree, by my signature below, that Holding Village is responsible for the performance of the maintenance procedures listed within. As the appointed agent, i agree that Holding Village will notify DWQ of any problems with the system or prior to any changes to the system or responsible party or partnership. Print name: Mr George W Krichbaum Jr. Title: Director of Development -Holding Village Address: 190 Finley Golf Course Road Chapel Hill NC 27517 Phone: _ 919-929-0660 Q Signature: Date: 9/,~ ~%fil.~ I, ~ ! ~ ~ i4 G , ~ !~'P~f/13A~UM , a Notary Public for the-8i~ate of North Carolina ,County of Wake , do hereby certify that George W. Krichbaum, Jr. personally appeared before me this 4th day of Seatember 2007 ,and acknowledge the due execution of the forgoing stormwater management facility maintenance requirements. Witness my hand and official seal, SEAL My commission expires (o ~ ~ 0_~ ~ Page 1 of 2 HOLDING VILLAGE -Wake Forest, NC LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT LEVEL SPREADERS: 1-6 The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff. Maintenance activities shall be performed as follows: 1. After construction and until vegetation has been established, level spreaders(s) shall be inspected after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more frequently during the fall season and after heavy rainfall events: a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required. b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and concentrated flows downhill from the level spreader(s). c. A level elevation shall be maintained across the entire flow-spreading structure at all times. Repair or replace the level spreader if it is damaged. d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the level spreader surface. e. Repair eroded areas and replace/replant dead or damaged vegetation. 2. The contractor should avoid the placement of any material on and prevent construction traffic across the structure. If the measure is damaged by construction traffic, it shall be repaired immediately. 3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year to maintain proper functioning. NOTARIZED SIGNATURE ATTACHED Page 1 of 2 As the appointed agent for the owner I acknowledge and agree, by my signature below, that Holding Village is responsible for the performance of the maintenance procedures listed within. As the appointed agent, I agree that Holding Village will notify DWQ of any problems with the system or prior to any changes to the system or responsible party or partnership. Print name: Mr. George W. Krichbaum. Jr. Title: Director of Development -Holding Village Address: 190 Finley Golf Course Road, Chapel Hill, NC 27517 Phone: 919-929-0660 ~ _ ___ ____ __ __ Signature: LC.~~.~--~- ~-~i~ Date: 9/ 4/07 I, - ` `+~ ~~ C~ : ~ K?~f/-~~-~:`~v7 , a Notary Public formate of North Carolina ,County of Wake , do hereby certify that George W. Krichbaum, Jr. personally appeared before me this 4th day of September 2007 ,and acknowledge the due execution of the forgoing stormwater management facility maintenance requirements. Witness my hand and official seal, t~ c. ~c~re . ~ ~aES ana2ooo y ~sS~owr~sss~scaaeA ~,._..~ wItKE OOUNTY, NOgTH CAROtJNA SEAL My commission expires ~ ~/C ~~.t ~_ Page 1 of 2 HOLDING VILLAGE -Wake Forest, NC LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT LEVEL SPREADERS: 1-6 The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff. Maintenance activities shall be performed as follows: 1. After construction and until vegetation has been established, level spreaders(s) shall be inspected after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more frequently during the fall season and after heavy rainfall events: a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required. b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and concentrated flows downhill from the level spreader(s). c. A level elevation shall be maintained across the entire flow-spreading structure at all times. Repair or replace the level spreader if it is damaged. d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the level spreader surface. e. Repair eroded areas and replace/replant dead or damaged vegetation. 2. The contractor should avoid the placement of any material on and prevent construction traffic across. the structure. If the measure is damaged by construction traffic, it shall be repaired immediately. 3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year to maintain proper functioning. NOTARIZED SIGNATURE ATTACHED Page 1 of 2 As the appointed agent for the owner I acknowledge and agree, by my signature below, that Holding Village is responsible for the performance of the maintenance procedures listed within. As the appointed agent, I agree that Holding Village will notify DWQ of any problems with the system or prior to any changes to the system or responsible party or partnership. Print name: Mr George W Krichbaum Jr. Title: Director of Development -Holding Village Address: 190 Fintey Golf Course Road Chapel Hill NC 27517 Phone: 919-929-0660 ~ Signature: Date: 9/~ a Notary Public for the~ate of North Carolina ,County of Wake , do hereby certify that George W. Krichbaum, Jr. personally appeared before me this 4th day of September 2007 ,and acknowledge the due execution of the forgoing stormwater management facility maintenance requirements. Witness my hand and official seal, SEAL My commission expires ri? ~ / G~Z Page l of 2 Ij~ ~-'~ THE JOHN R. s°~'uf;9(~t1 McADAMS COMPANY, I1VC. 8?-Os~a September 21, 2007 Ms. Cyndi Karoly NC Division of Water Quality 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Re: Neuse River Buffer Authorization (PCN) Holding Village; Wake Forest, NC EWP-06040 Dear Ms. Karoly: t t, rr C 1 r 9 i;~ P ~a~ ~ ~y'~ s~ ~ ~ ~ 2o0r ~TI.!t~~~,?,:+i~ Tl'~~irgr~.~ ~RE'if`~trH On behalf of Holding Village LLC, we are requesting Neuse River stream buffer authorization for impacts associated with a project known as Holding Village in the Town of Wake Forest, North Carolina. The proposed project is located to the north by NC 98 Bypass, to the west by the Seaboard Airline Railroad, and to the east by South Franklin Street. Please find enclosed for your review the following items: -Pre-Construction Notification -Agent Authorization Form -USGS Quad -Wake Forest -Wake County Soil Survey -DWQ Stream Buffer Letter (NBRRO # 06-317 letter) -Holding Village -Overall Proposed Site Plan -Buffer Impact Maps (sheets 1-5) -Level Spreader Exhibits (1-6) -Level Spreader Pictures, Calculations, Worksheets -Executed Operation and Maintenance Agreements Research Triangle Park, NC Post Office Box 14005 Research Triangle Park, North Carolina 27709 2905 Meridian Parkway Durham, North Carolina 27713 800-733-5646 919-361-5000 919-361-2269 Fax Charlotte, NC 5311 Seventy-Seven Center Drive, Suite 66 Charlotte, North Carolina 28217 800-733-5646 704-527-0800 704-527-2003 Fax WETLAND/BUFFER MAPS: A jurisdictional wetland/stream delineation was performed by The John R. McAdams Company on March 17, 2006 and field verified by Mr. Jamie Shern (USAGE representative) on November 9, 2006. A Neuse River Stream Buffer determination was issued by Mr. Eric Kulz on February 12, 2007 (attached DWQ Project No. NBRRO 06-317 letter). BUFFER IMPACTS: The entire project was designed to avoid and minimize impacts to wetlands, streams, and riparian buffer areas while utilizing the remaining areas for development of the site. There are no jurisdictional stream or wetland impacts proposed with the project. There is one roadway span, pedestrian bridge span, and several areas of buffer encroachment associated with the installation of the sanitary sewer. All proposed stream buffer impacts fall under the "allowable use" category in the Neuse River stream buffer table of uses, with no mitigation required. There is a network of roads to access the approximately 148-acre project site; however, Oom~~rei~ensive i_ancl Developn~elit Design Services www.johnrmcadams.com We help our clients succeed. ~e ~'tCi l ~ j~~i` THE JOHN R. McAI~AMS COMPANY, INC. Ms. Cyndi Karoly -DWQ Holding Village September 21, 2007 Page 2 of 3 the development plan proposes only one roadway stream buffer impact totaling 0.27-acre and less than 150 linear feet of impact associated with the installation of the entrance road, which is an allowable use (sheets 2). The proposed road will span the stream feature close to 90 degrees and will have abutments 10-feet from the stream's top-of--bank. A pedestrian bridge is proposed instead of a road in the northwest quadrant to encourage walking to the retail areas adjacent areas of the site, and will impact (sheet 1). A majority of the proposed sewer corridor impacts are located within the Zone 2 of the Neuse River Buffers (sheets 3, 4, and 5). There is one proposed sewer line that is to be directionally bored under stream feature "B" close to 90 degrees, and will have a maintenance corridor through the buffer (sheet 4). All encroachments into the Neuse River Buffers associated with the installation and maintenance of the sewer line corridor fall under the "allowable use" category in the Neuse River stream buffer table of uses. Proper sedimentation and erosion control measures will be implemented during the construction of the project. SUMMARY OF PROPOSED BUFFER IMPACTS: IMPACT SHEET # ZONE 1 ZONE 2 USE 1 -Pedestrian bridge 0.02 ac. 0.02 ac. Allowable 2 -Roadway (981f) 0.15 ac. 0.12 ac. Allowable 2 -Sewer 25 s.f. Allowable 3 -Sewer 0.02 ac. Allowable 4- Sewer 0.04 ac. 0.11 ac Allowable 5 -Sewer 0.08 ac. Allowable TOTAL 0.21 ac. 0.35 ac. LEVEL SPREADERS: A series of 6 level spreaders are to be installed to the current BMP manual for Phase 1 of the project. Drainage calculations, outlet velocities, pictures, and location descriptions are provided with the level spreader exhibits. Executed Operation and Maintenance exhibits are also enclosed for each of the devices. As stated previously, Phase 2 is currently only proposed and may not be built for several years. We will provide the level-spreader documentation for Phase 2, once it come on-line. There are no 401 impacts associated with the site, so a formal stormwater plan is not require to be submitted to DWQ, however the site is to be reviewed by the Town of Wake Forest for stormwater management. ~x~c~t> ~ ~7~ THE JOHN R. McADAMS COMPANY, INC. Ms. Cyndi Karoly - DWQ Holding Village September 21, 2007 Page 3 of 3 Consideration of this project is greatly appreciated questions or require additional information, please me at (919) 361-5000. Sincerely, THE JOHN R. McADAMS COMPANY, INC. J. Kevin Yates Senior Environmental/Wetland Scientist Stormwater and Environmental Department . If you should have any do not hesitate to contact Enclosures Office Use Only: Form Version March OS USAGE Action ID No. DWQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) I. 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 ^ 401 Water Quality Certification ^ Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: Neuse River Buffer Authorization only 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ^ 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: ^ 5. 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 M t ~q ~ , Environmental Concern (see the top of page 2 for further details), check h ~ i= r ~ ,n=°' ~~ ~ ~ ~-"=~ ~~ II. Applicant Information Owner/Applicant Information S~ P d ~h 2 0 01 iNirTl A~;l?t'•, ,4,x.';0 ~Q~r?fi+~:~FCR BRFUd~H Name: Planned Community Development Mailing Address: Attn: George Krichbaum 6900 Slade Hill Road Raleigh, NC 27615 Telephone Number: ( 919) 981-6577 Fax Number: (919) 981-6579 E-mail Address: 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: Kevin Yates Company Affiliation: The John R. McAdams Company Mailing Address: 2905 Meridian Pkwy Durham, North Carolina 27713 Telephone Number: (919) 361-5000 Fax Number: (919) 361-2269 Page 5 of 13 E-mail Address: yates~ ohnrmcadams.com 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: Holding Village 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): 1840448440 4. Location County: Wake Nearest Town: Wake Forest Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): The subject property bounded to the north by NC 98 Bypass to the west by the Seaboard Airline Railroad, to the south by Forestville Road and to the east by South Franklin Street. 5. 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): 35.9615 °N 78.5181 °W 6. Property size (acres): 148 acres 7. Name of nearest receiving body of water: Unnamed tributaries to Smith Creek 8. River Basin: Neuse (HUC 03020201) (Note -this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The site is undeveloped with the majority of the property open pasture and old dairy farm Page 6 of 13 Describe the overall project in detail, including the type of equipment to be used: The pro~osed~roject entails the construction of mixed-use residential and retail sub-division in two phases Phase 1 is designed and proposed to be constructed within the next year. Phase 2 is currently only conceptual and will come on-line in approximately 5 years. The current project consist of constructin¢ Phase will be mixed-use retail and residential, with associated roads and infrastructure Typical construction equipment will be used such as a front end loader bulldozer and paving equipment. Explain the purpose of the proposed work: The purpose of the~roposed work is to construct a mixed-use retail and residential sub-division. 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. A_ jurisdictional wetland/stream delineation was performed by The John R McAdams Company on March 17 2006 and field verified by Mr. Jamie Shern (USACE representative) on November 9 2006 A Neuse River Stream Buffer determination was issued by Mr Eric Kulz on February 12 2007 (attached DWQ Project No. NBRRO 06-3171etter). 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 future permit requests are anticipated for this project 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 Page 7 of 13 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: NA 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, se arately list impacts due to both structure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 3. List the total acreage (estimated) of all existing wetlands on the property: 0.59-acres 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 be included. To calculate acreage, multi ly len th X width, then divide b 43,560. Stream Impact Number (indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Im act Impact Length (linear feet) Area of Impact (acres) N/A Total Stream Impact (by length and acreage) 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 fill. excavation, dredein~, flooding, drainage, bulkheads, etc. Onen Water Impact I Name of Waterbodv I Tvne of Impact I Tvne of Waterbodv I Area of Page 8 of 13 Site Number (indicate on ma) (if applicable) (lake, pond, estuary, sound, bay, ocean, etc.) Impact (acres) Total Open Water Impact (acres) 6. List the cumulative impact to all Waters of the U.S. resulting from the project; Stream Impact (acres): Wetland Impact (acres): Open Water Impact (acres): 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 ®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 Size of watershed draining to pond:- VII. Impact Justification (Avoidance and Minimization) Expected pond surface area: 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. The entire project was designed to avoid and minimize impacts to wetlands, streams, and riparian buffer areas while utilizing the remaining areas for development of the site. There are no ,jurisdictional stream or wetland impacts proposed with the project. There is one roadway span, pedestrian bride span, and several areas of buffer encroachment associated with the installation Page 9 of 13 of the sanitary sewer. All proposed stream buffer impacts fall under the "allowable use" category in the Neuse River stream buffer table of uses. There is a network of roads to access the approximately 148-acre project site; however, the development plan proposes onl.~one roadway stream buffer impact totaling 0.27-acre and less than 150 linear feet of impact associated with the installation of the entrance road, which is an allowable use (sheets 2 . The proposed road will span the stream feature close to 90 degrees and will have abutments 10-feet from the stream's top-of--bank. A pedestrian bridge is proposed instead of a road in the northwest quadrant to encourage walking to the retail areas adjacent areas of the site (sheet 1~ majority of the proposed sewer corridor impacts are located within the Zone 2 of the Neuse River Buffers (sheets 3, 4, and 5). There is one proposed sewer line that is to be directionally across stream feature "D" close to 90 degrees, and will have a maintenance corridor through the buffer (sheet 4). All encroachments into the Neuse River Buffers associated with the installation and maintenance of the sewer line corridor fall under the "allowable use" category in the Neuse River stream buffer table of uses. Proper sedimentation and erosion control measures will be implemented during the construction of the project. 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. 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, available at http://h2o. enr.state.nc.us/ncwetlands/strmgide.html. 1. 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 Page 10 of 13 description of the current site conditions and proposed method of construction: Please attach a separate sheet if more space is needed. N/A 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://h2o.enr.state.nc.us/wrp/index.htm. 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): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount ofNon-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. 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 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 ^ X. 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 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC Page 11 of 13 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify Neuse)? Yes ® No ^ 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 multipliers. Zone* Impact (s uare feet) Multiplier Required Mitigation 1 9,1478 3 N/A 2 15,246 1.5 N/A Total * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additiona120 feet from the edge of Zone 1. 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. 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 surface. A series of level spreaders are to be installed to the current BMP manual for Phase 1 of the project Drainage calculations outlet velocities, pictures and location descriptions are provided with the level spreader exhibits. Executed Operation and Maintenance exhibits are also enclosed for each of the devices. As stated previously Phase 2 is currently onlyproposed and may not be built for several years. We will provide the level-spreader documentation for Phase 2 once it come on-line. There are no 401 impacts associated with the site so a formal stormwater plan is not require to be submitted to DWQ, however the site is to be reviewed by the Town of Wake Forest for stormwater mana eg_ ment. 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. Sanitaxy Sewer XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ^ No Page 12 of 13 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 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://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: This project is embedded within the Town of Wake Forest as is to provide residential housing and retail shopping to the Town of Wake Forest. There are no anticipated future development that will affect downstream water quality. 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). c ~, Appl' a t/Agent's Signature ate (Agent's sig re is valid only if an author' tion letter from the applicant is provided.) Page 13 of 13 Since 197y THE JOHN R. McADAMS COMPANY, INC. AGENT AUTHORIZATION FORM All Blanks To Be ~Iled In By The Current Landowner Name: Mr. George Krichbaum Address: Planned Community Development, Inc., 6900 Slade Hill Road, Raleigh, North Carolina 27615 Phone: (919)981-6577 Project Nanae/Description: Holding Property/STM-06020 Date: U.S. Army Corps of Engineers Raleigh Regulatory Field Office 6508 Falls of Neuse Road, Suite 120 Raleigh, NC 27615 Attn: Jamie Shern Field Office: Raleigh Regulatory Field Office Re: Wetlands Related Consulting and Permitting To Whom It May Concern: I, the current property agent, hereby designate and authorize The Sohn R. McAdams Company, Inc. to act in my behalf as my agent in the processing of permit applications, to furnish upon request supplemental information in support of applications, etc. from this day forward. The ~, sr day of e.~t-h~,.- . This notification supersedes any previous correspondence concerning the agent for this project. NOTICE: This authorization, for Ilability and professional courtesy reasons, is valid only for government offfcial$ to enter the property when accompanied by The John R. McAdams Company, Ine. staff. You should call The John R. McAdams Company, Inc. to arrange a site meeting prior to visiting the site. Print P weer/Agent Name roperty Oumer/Agent Signature ~•---•-- cc: r. C i Ifaroli ~ iro n~i~n 2321 Crabtree Boulevard Raleigh, NC 27604 CIVIL E N G I N E E R I N G • LAND P L A N N I N G • S U R V E Y I N G PO Box 14005 • Research Triangle Park, NC 2TT09 • (919) 361-5000 • Tax (919) 361-22(19 w+Nw.johnrmcadams.com EXHIBIT A ® PROJECT N0. EWP-OF)O4O AGE HOLDING VILI THE JOHN R. McADAMS it~c COMPANY FILENAME: I . , EWPO6O4O-E1 ENGINEERS/PUNNERS/SURVEYORS y a sc"`'~` AS SHOWN WAKE FOP;EST QUAD ~A " ` RESEARCH TRIANGLE PARK, NC 005 ZIP 27709 4005 OX ~ . NO~~ ~i~IRQ Wl~L]i`i ~~i S j - 14 P.O. B ~ DATE: 09_21_07 (919) 981-5000 0 o.s o.6 o.y 1.2 1.~ N.n~ '' ~_- ~-.----r-_ -----, G 6 0.2 0.4 0.6 c~.S 1 Kii i i~1ap center is 35.9b15°N, 78.5181°W (l~tirGS84%i~loD83} Wake Forest quadrangle ~ :;.909 Projection is UTh1 Zone 17 NAD83 Datum ~_ -1, 458 t. f.? -~' ,:~.~ 4_ ` ,~c~ ~ -- -.~ ~~ i f ~ ~ ; 111, k,~~l/~_..`.. ~ ~~ `. - __ ~~ F0= €:sf 1~--. t ; -. ~ ~7'-;. . 1 ~ ~ \ ) 4 ~ I ~ `-. _~ ~,~~ ~ Ck,_, --~ SIC #' ~. t ., .~, / ~ jnay ._, ~ ~ c;; ffl { ~ t .~~ ~~. ~.,y ~ ., r . \ ~;~V~~ (~~ f ~/ •, I ~~, ~~,-~~ i ,~ .~ ~ ~ . , t ! ~,_~` ~_. t~tiy{' I j ~^ _. ~,,,. r ~, .. ~~ Bu BUNCOMBE SOILS GeB2 GEGIL SANDY LOAM, 2 TO b A5 SLOPES, ERODED GeG2 GEGIL SANDY LOAM, b TO 10 SK SLOPES, ERODED GeD GEGIL SANDY LOAM, 10 TO 15 SK SLOPES GIGS GEGIL GLAY LOAM, b TO 10 Ski SLOPES, SEVERELY ERODED GIE3 GEGIL GLAY LOAM, 10 TO 20 SK SLOPES, SEVERELY ERODE[ Gm GHEWAGLA SOILS Wo WEHADKEE AND BIBB SOILS WwG WILKES SOILS, 2 TO 10 RS SLOPES WwE WILKES SOILS, 10 TO 20 515 SLOPES WwF WILKES SOILS, 20 TO 45 AS SLOPES WxE WILKES STONY SOILS, 15 TO 25 S!'i SLOPES Wy WORSHAM SANDY LOAM BIT B 1 / ~~' r (~ ~ ! ~ ,. ~'~hc2 `, ~ f f ~rl ~' ~Yi I ~ ' ~--'" / ~ r ' i ,,, ~ ,' ~~ ,,~, % ~ ,~ , ~ I ~ ' y,r F. -- 1 ~ f ' ~'~ i ~ ~ _ .. (r l W ~. + SUB J ~ G T .. Y %-°" _ }~ }''~ }~' /~ '~ / ` \\ ~ .. ,. i ~ r ~ _ ~ A;z~ ~ j % ~r 4 ~ -- i': _v . ..:___ .~-=^ - ® PROJECT N0. Eyyp-o6o4o HOLDING VILLAGE THE JOHN R. McADAMS FILENAME: EwP06040-E1 COMPANY, INC. Y e SC"'~' ' " WAKE COUNTY SOIL SURVEY ENGINEERS/PLANNERS/SURVEYORS ~ - ~ ooo ~ w~i ~ic['^71 ~ ND~H c~R~~A RESEARCN TRIANGLE PARK, NC P.O. BOX 14005 ZIP 27709-4005 ~ DATE: 09-2~-0~ (919) 381-5000 o"'~~ WArFRQ~ ~` -y ~ r >_ -{ D Y Michael F. Easley, Governor WiAiam G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality February L2, 2007 Mr. George Buchholz John R. McAdams Company P.O. Box (4005 Research Triangle Park, NC 27709-4005 - - DEB ~ 3 2007 =~~~~ ~.~ t ~~~~hh~ Cz ~, .Kc~.~~ ,. __ , QASIN: _ Neuse X Tar-Pamlico NKRRO 06-317 County: Wake (15A NCAC 2B .0233} (LSA NCAC ZB .0259) Com Taint NOY Buffer Determination X Incident # Appeal Call ProjectName: Holding Property Locatiav'Directions: Site is located to the east of south Main Street, at the east end of Friendship Chapel Road in Wake Forest. Subject Stream: UT to Smith Creek Date of Determination: 11/29{06 Feature Start Buffer GPS Points (if provided) End Buffer Stream Form Appeal -Call Located on Soif Survey Located on USGS T'opograPhic A Subject Throughout X X II Not Subject (Nat on Iblaps) C Subject at "Start C" Flag. X X D Subject Throughout (Same as Feature A} X X F Subject at "Start F," Flag X F Subject Throughout X X G Subject Throughout X X H Subject at "Start H" Flag X I Subject Throughout (Same as Feature F} X __ X __- 3 Not Subject X K Subject at "Start K" Flag X N i~thCarolina ~`~ll~!!C[l~~/f Kurth Carolina Ui~•ision of Nia[er Quality Raleigh Regional.OFlice SurFrcc ~4ater Pnntecti~xT f'Irone (919) 79t-d2On Customer Service Internet: h2o.encstate.nc.us 1623 Rlail Service Center Raleigh. NC 27699-1628 FAX (919) 571-x718 I-377-623-67x3 An Equal OpportunityfAtfirmative Action Employer - 50°'o Recycledfl0°6 Post Consumer Paper 2712/2007 Page 2 of 2 This on-site detertt:inntion shall expire f c"ve (S) years from the date of this letter. Landowners or affected partues that dispute a determination tnade by the DWQ or Delegated Local Artthority that a surface water exists acrd t~tat it is srtbject to the buffer rule may request « determination by the Director. A request for a determination by tote Director shall be referred to tize Director itt writing c% Cyndi Karoly ,DWQ Wetands/401 Unit, 2321 Crabtree Blvd., Raleigh, NC 27644-2260. Individrrals that dispute a determination by the DWQ orDelegated Local Arrlhority that "exempts" n snrface -va[er from the buffer rule may ask for an ad judicatory hearing. You ntrc~Af act wilhitt 60 stays of the date t{tat you receive this letter. Applicants are hereby uotifted that the 60-day statutrv~ry appeal Time does not start until the affected party (including downstream and adjacent landowners) is notified Hof this decision. DWQ reeotnn:ends that the applicant eondrtet this notification in order to be certain that-third party appeals are made in a timely manner. T'o ask for a hearing, send a written petition, whici~ conforms to Chapter ISOB of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleig{z, N.C. 17699-6714. This determination is final and binding unless you ask for a hearirng withitz 60 days. The (ownerlfuture owners) should notify the Division of Water Qreality (including any other Local, State, arrdl Federal Agencies) of tltis decision concerting any future correspondences regarding the subject property (cta~ed above). Titis project may require a Section 4(14/401 Permit for the proposer[ activity. Any ittgrtiries should be directed to the Division of Water Quality (Central Office) at (919)-733-1786, and the US Army Corp of Engineer: (Raleigle Regulatory Field Office) at (919)-876-8441. !~ Eric W. Kulz Environmental Sp ialist CC: RROfSWP Files Central Files X401 Oversight and Express PermittingUmit Bill summers -Town of Wake Forest North Carolina Division o(Water Quality Raleigh Regional OFtice Surface W:rter Protaaion Phone (919) 791-4200 Cusrorner Sen:~ice Internet: h2o.enrstate.nc.uS 1625 Mail Service Center R.dei~h. NC 27699-1628 FAX (9I9) 571-~11R I-877-623-67-C;$ An Equal Opportunity/Affirmative Action Employer- 50 o Recydedll0°-o Post Consumer Paper No hCamlina ~1~rittrrttlly ta~zaae ~ ~ 1j ~- r ti - ~, ~ . ~ tip~,rcaanerm~~ 4 c ~ ` .~~ ~ ~_ ~ ~i - r ~ ~,y~ ~". 1i t t .~ ~l;rr t t _ ~~ ~ /-'~~ '`l~'`v ~ ~ +. cif J .- .'C' f:. t:.:. i-'~ .. r. 1 L ~.,,~' 1+" ,jai ~c!, `~`' `'~` ~ '~ _ ` i~t k t , i 1 d i i EI' f 1 ~~ y~.;~~ t~ .F1 s ~ ~ ~~ ~~ ~-~ ~; p rn 1 1. -'r~ ~ ~` ~~~ :~ i t~ `~ '~~ ~~ ~ ~ ~ :el '~ - er ~t ~1 lyr._ ~_r (S~ ~ ~~'.'' - ~~ r 7 ~ C '?fit ~- t - -e ~, ~~ ~~~-. ~ j :' ~ ~ ~, ~ ~ {t7i ~ ~ ', -; r j ~ ,~ ~ - ~ o~,~~ t y.r ~ .~. r~ t. 4 ( ~ ~ ~ F t "~ ~. 71}SS ;.~i f' ~..~ t 2t - l~t~i? ZTfil .lfJ f ,{~I • ~ I ~ 1 `. E ,~;i`j y ~ r ~r :. ~~.~ f - 'a ~i ) r L 1'4 r ~ t 1 it v~ ~ ~% 1 }~ ~ illi l~ ~ ~;.. !~ ~~~- 1, ~ $ ~ r r 1 '~ ~ ~ ~ irrr<r~r 1 ~~ a ~ -`° ~+. `~~ ~. r 1? ~ ~ 4. f ~ 1, ~ r~~~ lsr J ~ ~~1 • ~J `~ r f . ~ i'~ t ~ ~ t r , ~ t__..:.~.:.'.r.~. ._~,'..:t O 0.3 ._.0.6._..._._._O `, ..._~.- :1..7 l..ti kn 1,1 %K __..._._...._ ......................___.___ ________.... ~ G 0 0.2 O.'( 6.f O.f :E ni Map center is 35.9615^N, 7f1.5i61°lN (LYC;.;ES4fNAUt3_l) Wake FaE~est yuerdr~~nrlle iR_- r::,'3ti3 F'rolectiart 15 UlP1 Gone l:f NfiU83 L~ah.un l:- f .Qf~', O EXHIBIT A rBwBCr rro: FORU6039 HOLDING PR~PEFtTY THE JOHN R. MCADAMS N GISJZEV D ~C co~P~, INC_ . J H SCl-ac w~ FoRESr gum 6[i3/YL~tiNLRB/9UAYSYOR9 SN(i1N AS SHOWN ~'~ CA~~~A ~ ~H ~a~ p.~. N~ E 0 ..NO w~ ~R~ . E0$ 11000 1P 27709-4006 P DALB: d3-21-06 (910) ~--6o6D i ` k ///' ~_~ j, C~ Glp$ ~ z . ~ F tC.,~ `.C ~ - _~I 3t f ,''~ ~ ,~ ~~,~ ~'~ ~~ tl A, ~ ` c r x' ~ ~ . ~ ~~ ~_' 1~ . ~ Off' .S~ i (_.-; ,~ r -` ~t _^- . ,~ ,F ' t ~t~~2 ~ dE3 "~ "' ~ r- . r i jj %( Ati.. ~~~ i ~ x ~ ~ ~ R tl l ~ ~~ __ i ~ / ~ i ' 4 L ~ . ~. i ~ r ~ ~ ' f` } - t:Ar-.r= ;~ ~~...~~ ` ~ ~, t ~~~ r~ :,- '~ ~ / ~~~ '~r E ... r ' ~ ~ ~ ~ :~~ - r~-~ ~- ~ ~ _ ,Its !'~ ~ . ~1 ~II*3 Y~ 4 `~ ~1 ~.,': ~~ .E,- ~ f~ ~' Are! ~, ~ ~~ ~ ~: ~ ~' ~~ )71C.' " ~ ~ ~~ ~l fJ ~ nut~a Yv~nt;~ ~ ~ ~` ~ - . l _ ~ ~'~~ ~. 413, ~ =~- - ~r,F t ~`_ GaF`~ ~,:',~ ( ~ ~~ ' ~ !'fit^tf l ~ _ .~ ~~ y t ~uE~~~ ~; r-r soiLS Ox SITE= 13u F3UNGOMBE 501L5 GeS2 G6GIL SANDY LOAM, 2 TO 6 SG 5LOPE5; ERODI=D GeG2 GEGIL SANDY LOAM, 6 To l0 4K SLOPES, ERODED GeD GEGFL SANDY LOAM, 10 TO 15 % SLOPES GFG3 GEGIL GLAY LOAM, 6 TO 10 % SLOPES, SE~fEF2ELY ERODED GFE3 GEGFL GLAY LOAM, 10 TO 20 AS SLOPES, Sk1(ERELY ERODED Gm GHEWAGLA SOILS 6u 6ULLFED LAND WmG2 WEDOWEE SANDY LOAM, 6 TO 10 % SLOPC-~, ERODED YJo FJEHADKEE AND BIBB SOILS WwG WILKES 501L5, 2 TO 10 SK SLOPES WwE WILKES SOILS, 10 TO 20 % SLOPES WwF WILKES 501L5, 20 TO 45 % SI..OPES WxE WII~10~ M SANDY ILO~AM TO 25 % SLOPE5 ~B~ B p`°m`r rro. FOR06039 HOLDING PROPERTY THE 30HN R. McADAMS INC coMPANY GIS~tEV OW ~A`ISI`~ 1 . , ( . N_ 6NQINH6R3/PLNN66S/8U4PSYOA9 sCAIS: ~~ SOILS ~ =1000 ~ w~ Fo>~sr, xo»x c~o~ 8B8BARCH 7Rtt1Ni3L8 Peak, NC P.O. sox ~.~~ ~ x~~oa-aooa o.~~ 03-21-06 ~aie) sei'6°°° I ~, STREAM "D" 50 FT NEUSE STREAM BUFFER \ ZONE 2 \\ \ ZONE I ~' ,~ ~~, ~ - , ~r ---' ,~~~ ~ \ .' ~ ~ ~ ,_-_~ ~ ~ ~ \ \ i~ ~ \ ~ i ~~ i ~ i ~ . ~ ~~- \~~ % i ~ ~ ~ /~ i `,_ ~ _. ` / 5 i~~s~ ~ ~s~ ~ ~ ~ ~~ i ,~ ~ _~-~~ o i ~~ ~~\ ~ ZONE I BUFFER IMPACT: 0.02 ACRES ZONE 2 BUFFER IMPACT: 0.02 ACRES ~,~. r ~~ ~ • ~ ~ / • ~ // ~ ~ '~ J i~ i i i ~O,/~~ ' ~-' // / ~~~ i~ ~ ~/ •/ / i ~ / -- ' i J i'~ ~ i / ~~ i _,- -~ °- -, -PEDESTRIAN i ~~------- '~// ~ GROSSING ,~ ~ .' -'~ - --~ ~~ / ~~ / ® /~ I I i I \ ~~ z 0 -~ x GRAPHIC SCALE so 0 2s so ioo, SHEET 1 1 inch = 50 ft. ® PR07ECT NO. EWP-06040 HOLDING VILLAGE THE JOHN R. McADAMS INC COMPANY ~ ~"~''''"'~E` . , E1NP06040X ENGINEERS/PLANNERS/SURVEYORS a SCALE '~ + IMPACT MAPS ~ . .~ = 50 RESEARCH TRIANGLE PARK, NC ~; WAKE F ORE.ST, NORTH CAROLINA P.O. BOX 14005 Z[P 27709-4005 ~ DATS: 09-21_Q7 (919) 361-5000 J SEWER: so 0 25 so ioo ZONE 2 BUFFER IMPACT: 25 SF ~ Sf~ET 2 1 inch = 50 ft. / ® PEwECT No. EWP-06040 HOLDING VILLAGE THE JOHN R. McADAMS INC COMPANY FILENAME: EwP06040X . , SURVEYORS R NNERS 9 d SCA18: .~ ' IMPACT MAPS ENGINEE S/PLA / ' = rJo RESEARCH TRIANGLE PARK, NC ~ WAKE FOREST, NORTH CAROLINA P.O. HOX 14005 ZIP 27709-4D05 ~ DATE' 09-21-07 (919) 381-5000 ROADWAY: ZONE I BUFFER IMPACT: 0.15 ACRES a ZONE 2 BUFFER IMPACT: 0.12 ACRES x GRAPHIC SCALE j~~' ~~ \~ \~ \~. \ 50 FT NEUSE ~~ /'/ ~ ' / \ ` ~ \ ~ ` ~ \ ~ \ ~ \ STREAM BUFFER \ ` ~ \ ~ ~ `\ \ ~ ~ ` \ \ i \ / \ / ~~ \ ~~~ ~ . ~ \ \ \\ \ \ ~ ~ ~ / , \\ ~ \ ~' \ T ~ \ ~~ ~ \ ~ ~ ~ ~ 1 i / \\ \ \ \ , ~ ~ ~ STREAM "A" ~ ~~ T / ~ / i ~ ~ `~ ` ~ j ~ ~ ~ i ~ / i i ~ ~ i i ~ ~ ~ / ~ i i ~ ZONE 2 i ~ ~~ ~ 6 , ~ i I) i ' ~ I i ~ i ~ t ~ ~ ` / ' ` I I ~ ~ ~, \ ~ ~ ZONE I ~\ s ~ ~ ~ - ry \ y t °o / - \ v \\ ~ ~ \ ~~~___ \ ~ ` _ _ \ i / ~ \ ~ ~ / ~ \ \ ' \ / ~ ~ ~ ~Op \ \ i ~ \ cJ, / \~ ® ZONE 2 BUFFER IMPACT: 0.02 ACRES z 0 -~ x GRAPHIC SCALE so 0 2s so ioo SHEET 3 1 inch = 50 ft. ~ ® PHOIHCr NO. EWP-06040 HOLDING VILLAGE THE JOHN R. McADAMS viLENA)dH: EwP06040X COMPANY, INC. Y a 5~,,>B: ~ ., - 50. IMPACT MAPS ENGINEERS/PLANNERS/SURVEYORS !7 SE H NG N ~ ~ SATE: (1~- J1 {);' WAKE FOREST, NORTH CAROLINA Z[P 2 PO OX 14005 09 4005 (919) 381-5000 \~ ~x~ \~ '~. _ ., ~\ \\ ~ ,' 1 ; 1 ~ I i / / \ I i 50 FT NEUSE / / STREAM BUFFER / i /, / / i i i / moo, ~i ZONE I / , ONE 2 -~` ~ ~~ moo, ~ ~ ~ i ~ ~ ~ ~ / i Aerial Sewer ~ _^^ /~ ~~'~ Line Grossing ;- - r . -/ i %~ - ; / - ~i ~' ;% s ~~ - ~~ ,= , ,' i i i i i °o e i i i ,, f ~ \ _~ ,/ ~ ,,, / , i a ,~ , ;~ b5 i ~SA~ i `~ ~ ~~ . i i q `~,~ ?_ ~ . ~~`~, 9,387 SF. ,, ~ ~ , ~~~ ~/ \~x I I ~' ti° '~ 8,957 SF. `-~~ / ~ / ~ ~ N ~ / ~ ~ \~ ~ / / \ ~\~. i ZONE 1 BUFFER IMPAGT: 0.04 AGRES ZONE 2 BUFFER IMPAGT: O.II AGRES SHEET 4 `, i . ` ~ v --'~ ~~~ ~ 1 ~ ~g E . ~~ ,--~_ ~~ I r I I , I I I I I I I i I I #" I 12,689 SF. ~~~' I I I I ~ , 1 I , I , I . ~~-a- ~ .~,9 ~R ~~~/~j10,084 F \ \ ~ z 0 z -.~ x GRAPHIC SCALE so 0 2s so ioo 1 inch = 50 ft. ' ' ® PROJECT N0. EWP-06040 HOLDING VILLAGE THE JOHN R. McADAMS COMPANY INC ,,5, FILENAME: EWP06040X , . ~ ENGINEERS/PLANNERS/SURVEYORS a sCA1,E: ~~ ~ IMPACT MAPS ~ = 5~ R LINA RESEARCH TRIANGLE PARK, NC 4005 2IP 277D9-4005 O ~ O WAKE FOREST, NORTH CA P.O. B X 1 ~ DATE: 0g-2~-~7 (919;' 381-5000 i i .~ i ~' '~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ; ~` ~ 12,600 SF. ~ ~~ ~\ \ ~ ~ ~ ~ ~ ~\ ® PR°'$~' "°~ EwP-oso4o HOLDING VILLAGE THE JOHN R. McADAMS COMP NY INC PILENAN6: EWP06040X , . A 9 e s~A~: •~ , IMPACT MAPS ENGINEERS/PLANNERS/SURVEYORS a ^~` ~ - 50 ^ t~L~M• NORTH CAROLINA WAKE FOREST RESEARCH TRIANGLE PARK. NC P.O. BOX 14005 ZIP 27709-4005 (p DATE: n9-~_~~-~~ , (A1fa) 361-5000 GRAPHIC SCALE so o zs so ioo SHEET 5 1 inch = 50 ft. 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SOS=u ~ :3'ItlOS ~1 '~ Id/S2I33xI~x3 SHO ~,'~AtIRS/S2I3NI1V . v '~I~II `~i~I~dY~iO~ ~O~I'II1L Ol~IIQZOH 8S-Oti090dM3 :awvx~na ® i ' ' ' - 3 ~ NH01 ,~H,I, S~~Q~~~ Oti090 dM •ox aoaroxa 9 30 i~ J~~HS ~# x~av~as ~~n~z 0 ~~ ~ ~ I ~ ~ - ~ \ \\ \ \ ~ ~ \ I - ~ ~ I ~ 11 ~, \ ~~\ ~I~ ICI ~ ~ ___ I I ~ - I ~ \ ~ ~~\~ \\ \ Nb'R~dla \Sf13N ,~OS~~ ' FII dd00ld ~t~ 00 I ~ I \ \ C~~ ~-- - T~ ~rx Nlb~l 000~~ 21`v'31~ 0 1~ xoti ~/ /~ ~ ~ ~li I \ ~ 1 1 i 1 I II.~ I I _ ~ I 1 \ 1 ~ I .Iil I \ ~ I 1 / / .._ ~I ~~~~ ~ ~"~ 1~ Ids ~~,~_ ~ # 08 dS l ~ ~ ~ % /I ~ ~~ ~ / 1 ~ \~5Z'99Z~~313 ' ~ ' 30`d3 S l3/~3l dl L \ ~~ ~~ / ~ ( I ~ ~ ~ - ~ - i ~ ~~ ~ '. ~~ \ \ ~ ~ \ \ ~~ \ ~ ~ \ ~\ \ ~ ~ ~\ ~ \ ~ ~ ~ ~ ~\ \ ~ \ \ \ \ ~~ ~\ 1 ~,~ ~. 1 .. ~ ~ I ~ I. _~~ ~i ~~ ~~ ~ ~ ~ ~~ ~ ~ ~ 1 ~ ~ ~ ~ ~~~ ~ 1 ~/~ ~~~~~~ ~ ~ \ 1 I, ~ ~s ~ ~ \ \ \ \ \ ~ `~ ~ ~ ~ \ m ~, ~ ~~ \~ ~ \ ~ l ~~ ~ ~ ~~ \ \ ~` \ \ ~ ~~ \ • ~ ~ i ~~ ~ 0009-T9E (8T8) 900TH-80L4Z dIZ 9006T XOH '0'd ox 'xtlvd 3'I`JxvTxy H~2TV3532I ' , ~ZO~~ /~~~xp~~~ ~Q~~ ~ T T T ~~~TV .~1~ TC ~ul a~~ -O S~O~l ~~.i-i~Ll~ TS j ~/ ~QdV a ~ LO-61-60 :ayva .~,tl~S ~OC~=~~ ` ~ ~" Q d Ia/sxaaxlsxa sxoa~nHns/sxantxv .ONI `1~1~I~dY1i00 , ' ' '' 8S-0~090dM3 :awtlxa~i3 ~ SY11~Q~~I~i '~I NHOP ~HZ IOH II1L ~l~IQ I ~~~ Oti090-dM3 •ox yoaroaa 9 30 5 J~~HS 5# x~av~xas z~n~t ~~/ ~ ~ ~ ~ ~ I I ~, 1 r~tnd~Qo,~ad3`fi \ \\\ ~~ i ~ .. \\ ~ ~ ~ ~ ~ ~ Nivi ~oo~ a~ oo\i \ \~ 1 I I ~ I I ~ ~ ~' I I I \ ~~ \\ \ ~ \ ~ \ ~ ~ / ~ / ~ / I ~ 1 \ I / ~ 1 N I ~~`~ ~\ 11~~\1I ~ / 1 II \ ~i ~ I I X 1 1 1 1 ~ ~ ~I\ ~ I / ;~' I, ~ / / / ~/ ~ \ ~ ~ ~/ ~ I I I I - - _ / \ ~ / .I I \ \ ~ ~ / ~ ~ ,I ~ / \ ~ ~/ ~ I ~, I I 1, ~ EMI I ~ I / / \ \ ~ \ ~ I 1 ~ 1 1 ~ ~ ~ ~ I~ ~ ~~ ~\\ I I I I I \ ~ I ./. I ,I ~~~ \ I I \ / ~ \1 I I ~ I . ~ \ \ \ ~I i N O 0 w V D x ~ 0009-T9E (8T8) LLZ dIZ 900fiT XOH '0'd H- , ~ ~d~ H .T..S .~ ~ ~Z~ ~ ~~ ~ d LO-61-60 :ayyQ ~ ~ 900T BO ~x 'xuva alsxvlxt xoxvassa ~T~T T T TAT ~ T 7~ C ~ i 7 rT ~iv~ T S~~t1 V .ZQdS 1~~ 1 'a 7,n n O~ Q.7a1+L1 1dS SOS=,~ L ~31V~S 6 (~ sxoa~nans/sx~xxrla/sxaaxt~xs P N ~~~'I'II1~ ~l~IQ'IOH 8S-0~090dM3 :aTVVx~i.~ ~ ~ . SI~I~Q~ Y1I 2i uHO ~H,L 0090-dM3 •ox aoaroxa 9 30 9 J,~~HS 9# 2i~QV~2Id5 'I~A~'I i/ , ~ ~ , \ ~, i ,\/ j~~~~~ ,ice ~ ~ ~i j /~ ~ - / ~0 ~ ~ '/ 2135]`~32~~ l~/~3~~ l / I ~v / ~~ i/ ~ i ~ / ~/ ~~-~ ~i ~~ ,,, ~~ ~ ~ i _- _. ~ ,,~' .' ~ ~ ~ ~ ~ i i ~i i ~ i~ / ~ ~ _ ~ ~ // ~ •~, ~ i,~ ~ ~~ - ` ~~/ - J ~~~ ~~ l a- ~ , ~ / i~ ~ / / r ~ i i ~ ~~ ~ ~~ i I ( ~ ~ \ I 1 \ \ ~ \! I \ ~ ~ ~ / \ \ `~ \ ~ \ 1332l1S l ~~ NIINN`d21~ H1f10S~. ~, \ ~~~ 1 ~ ~ ~ ~ ~ ~ ~ `~ ~~ ~ ~ ~. ~ ~ ~ ~ ____ _~____V._____________.. ~~ ._ Level S reader 1 COMMON NAME COMMON NAME LAYER winged elm Ulmus alata tree Johnson grass Sorghum halepense herbaceous goldenrod Solidago s . herbaceous sweet gum Liquidambar styracijlua shrub blackberry Rubus arguts herbaceous Level S reader 2 COMMON NAME COMMON NAME LAYER American elm Ulmus americana tree Chinese privet Ligustrum sinese shrub willow oak Quercus phellos tree goldenrod Solidago sp. herbaceous fescue Festuca sp. herbaceous Level S reader 3 COMMON NAME COMMON NAME LAYER hickory Carya ovata tree mulberry Morus alba shrub red cedar Juniperus vir iniana tree American holl Ilex o aca shrub American elm Ulmus americana shrub ine Pinus taeda shrub Japanese stiltgrass Microstegium vimineum herbaceous Japanese honeysuckle Lonicera 'aponica vine Level S reader 4 COMMON NAME COMMON NAME LAYER beech Fa s grandifolia tree American elm Ulmus americana tree sourwood Oxydendrum arboreum tree ine Pinus taeda tree Ja anese stiltgrass Microste ium vimineum herbaceous muscadine gra e Vitis rotundifolia vine Japanese honeysuckle Lonicera ja onica vine sweet gum Liquidambar styraci ua shrub Level S reader 5 COMMON NAME COMMON NAME LAYER red ma le Acer rubrum tree pine Pinus taeda tree sweet gum Liquidambar styraciflua shrub red cedar Juniperus virginiana shrub Japanese stiltgrass Microste ium vimineum herbaceous goldenrod Solidago sp. herbaceous Chinese privet Ligustrum sinese shrub hickory Carya ovata shrub Level S reader 6 COMMON NAME SCIENTIFIC NAME LAYER tulip poplar Liriodendron tulipifera tree American elm Ulmus americana shrub sweet gum Liquidambar styraciflua shrub Chinese rivet Ligustrum sinese shrub red cedar Juniperus virginianus shrub Japanese stiltgrass Microstegium vimineum herbaceous blackberry Rubus argutus shrub multiflora rose Rosa palustris herbaceous dogwood Cornus floridia shrub muscadine grape Vitis rotundifolia vine Holding Village - Stormwater Management Plan Level Spreader Outlet Locations -Pictorial Pictures taken 09/20/2007 Level Spreader 1 Taken at outlet location Level Spreader 2 Taken at outlet location Level Spreader 3 Taken at outlet location Level Spreader 4 Taken at outlet location Level Spreader 5 Taken at outlet location Level Styreader 6 Taken at outlet location Z Z (7 O ~ ° W W ° N y. Q ~ m J W Q ° m ~ Z O i J ~ ° ~ WN O W O ~I I I- Q Z' ~ ~ O N C Q ~ i ( ) w Z ~ w ~ N° 0 ° _ Z m Z 1-N~ W °O I _ II= ~Z ~ 0 a ~ ° ~ oQ °~ o~Z Q II ~°N NW pZ dZJ ~ W I I ~~Z =W ~Q ~ ~ il f-J~W ~° a w= p ~°W ZW I- o ~~o ~ J ° ~aN I~ O Z ~c~c~ JF- W C7 w ~Z ~~ ~ ~ OZ ~ Z ZW F- J Z N -I I Z O _ "o o~ I~ N° U zN o? Q ! zw OJ ° W Z W ~ ~ W~ ~ I ~ Z_ Q ~ N O ~ Na QW U n- ~ ~_ Z °ON W Jp QNZ Cl1 0 ~N ZIN 0 Q O Nm~ I J r ° WaN U Ir zO ONm W NN=O ~ ~I-I~ ~ Owl W z Qm> O WQr _ w Q >QQ ~ I , J W W a I ~Q= ~ ~ O ~U ~~ JF--Z W N O Z W li W ll I- ~ W H ~' Q Q ~ 1--1 W I -I MLA ~w~W >Q~ ~- W d d ~~ I~I WAY W ~ III QW° °Z ~ 1 W ~ W L~ ; _ W ~ W Q ° - JQ Z O W pZN m~ ~Z w~ wZO ~N~O rN ~..QU NW WF- O J NW W ~ m w WQ W ~?J r7~k U Z W~ ~ ~ ~' Z J Jc.~ J ~ z ~ Q w~° W ~ ~'Z !.J_! I"'_ Hid ~~ oQ J Z waw N ~- ° Y ~ W ~ W ~ Z Q ~ O=~W °F-NN Z6L'0~ L `~a4d!II~~ 'Wb' 8£~8Z~Ol LOOZ/OZ/6 '6MP' la-Ob090dM3\s6u!Me~d lua~m~~;aa~}S d - y~ aseyd~s6uinne~a uo!~~na~suo~~pue~~Ob090-dM3\d 3\s~~a!ad~ DWQ Level Spreader Design Table Upstream Total Flow DWQ Level Spreader Minimum Node Out (cfs) Requirement (If/cfs) Calculation (If) Length (If) SB-1 0.48 13 6.24 13 S B-2 1.08 13 14.04 15 SB-3 3.33 13 43.29 44 SB-4 9.24 13 120.12 121 SB-5 8.57 13 111.41 112 SB-6 1.88 13 24.44 25 Note: DWQ requires 13 linear feet of level spreader per cfs of discharge for the 1 inch per hour storm intensity. These results are rounded up to the nearest foot for minimum length for construction. DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (1!2007) I. PROJECT INFORMAT ON (please complete the following information): Project Name : rtol~ ~ 4 /! ~ Contact Person: ~ fs Ck.e e ~~ r Phone Number: (y19 1 3 ~/- S66a Level Spreader ID: Level Spreader Length Drainage Area Impervious Area Forebay 1/0% Maximum Filter StriplBuffer Slope 13 tt. (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (0.2% of the contributing impervious surface area) (6% for forestedlleaf littler cover, 8% for grass/thick cover) 0.6 3 ac. , 53 ac. J, cu ft. Max. Discharge from 1"/Hr Storm 0. y~ cfs Max. Discharge to Level Spreader g cfs Filter Strip/ Zone 1 Buffer Vegetation is t ..uGr Go /~~ Filter Strip! Zone 1 Buffer Width 30 ft. Filter Strip/ Zone 2 Buffer Vegetation ro«,.+d coder Filter Strip/ Zone 2 Buffer Width ~0 ft. (Discharge rate from extended detention wetland or pond) (Grass/Thick ground cover or Forested) Bypass Method Used ~f;~~r hox Please include a worksheet for this. II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and wiU substantially delay final review and approval of the project. Applicants Initials CM(i Project Site was visited prior to designing level spreader system. ~ G Date of the Site visit. Please attach time-dated digital photos of existing buffer conditions. CM L Level spreader length is at least: 13 ft. per cfs for thick ground cover /grass; OR 65 ft per cfs for 50- footcanopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot forested buffer; OR a weighted average of the two vegetation types within the buffer/filter strip). G~ ~ All ground cover types and their widths have been labeled on the construction plans. (:/k L All contours have been depicted on the construction plans. Gwt L No structures are located in protected buffers (must meet no practical alternatives criteria). ~~ G No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader. F-M L Construction details for the level spreader have been provided. (:MG The operation and maintenance agreement signed and notarized by the responsible party is provided. N/.~ . No practical alternatives explanation +Variance request. (Level Spreaders in Series only). Bypass method used: l'~U~ Ci Bypass conveyance method is specified and construction details and calculations are provided. ~,M G Alternative design option is specified and plan details and calculations are provided. l M L Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. C ML Construction details for the bypass and outlets are provided. RIM=305.50 15" RCP INV. IN=301.70 OUTLET TO LEVEL SPREADER (6" PVC) a~. •• .... ..tl 6' SPLITTER STORM SEWER MANHOLE (SB1) N.T.S 304.OOt BRICK 15" RCP INV. OUT = 301.95 SUMP = 301.60 DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (112007) PROJECT INFORMATION (please complete the following information): Project Name Contact Person: Level Spreader ID a Phone Number: (9l9) S b l- Saero Level Spreader Length /S/ ft. (perpendicular to flow) Drainage Area ~. 6 ~ ac. (on-site and off-site drainage to the level spreader) Impervious Area ,_ t ~ ~~' ac. (on-site and off-site drainage to the level spreader) Forebay.A~a {~o~ 3LG cu ft. (0.2% of the contributing impervious surface area) Maximum Filter Strip/Buffer Slope A % (6% for forested/leaf littler cover, 8% for grass/thick cover) Max. Discharge from 1"/Hr Storm ~, OS~ cfs Max. Discharge to Level Spreader /, 0 t; cfs Filter Strip/ Zone 1 Buffer Vegetation Ztlc~ cd/<r Filter Strip/ Zone 1 Buffer Width O ft. Filter Strip/ Zone 2 Buffer Vegetation Tk,~k a~ coo<~ Filter Strip/ Zone 2 Buffer Width 7n ft. (Discharge rate from extended detention wetland or pond) (Grass/Thick ground cover or Forested) Bypass Method Used cn~~~f/t~ box Please include a worksheet for this. II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. Applicants Initials C IwG Project Site was visited prior to designing level spreader system. GM.L Date of the Site visit. Please attach time-dated digital photos of existing buffer conditions. !iM,~ Level spreader length is at least: 13 ft. per cfs for thick ground cover /grass; OR 65 ft per cfs for 50- footcanopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot forested buffer; OR a weighted average of the two vegetation types within the buffer/filter strip). C l1til,_ All ground cover types and their widths have been labeled on the construction plans. ~ nt,~~ All contours have been depicted on the construction plans. ~,.v- G No structures are located in protected buffers (must meet no practical alternatives criteria). C wt L No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader. (M L Construction details for the level spreader have been provided. M G The operation and maintenance agreement signed and notarized by the responsible party is provided. 11r/~4 - No practical alternatives explanation +Variance request. (Level Spreaders in Series only). Bypass method used: C M,~i Bypass conveyance method is specified and construction details and calculations are provided. cM G Alternative design option is specified and plan details and calculations are provided. GMC Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. C NA C Construction details for the bypass and outlets are provided. RIM=293.30 247.801 BRICK 15" RCP INV. IN=243.60 OUTLET TO LEVEL SPREADER (6" PVC) ' 15" RCP INV. OUT = 243.95 6' SPLITTER STORM SEWER MANHOLE (SB2) N.T.S SUMP = 243.50 DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (112007) I. PROJECT INFORMATION (please completg the following information): Project Name : o ~ ll ~ ~~q e, ~' A• Contact Person: ~-t~s Cwl~,~ frPhone Number: (T~9) S6/-S'cad Level Spreader ID: 3 Level Spreader Length ft. (perpendicular to flow) Drainage Area 5.'7 b _ ac. (on-site and off-site drainage to the level spreader) Impervious Area ~ 3~ 7G` ac. (on-site and off-site drainage to the level spreader) Forebay.A~ca t/o~. N YS cu ft. (0.2% of the contributing impervious surface area) _..~- Maximum Filter Strip/Buffer Slope ~ % (6% for forested/leaf littler cover, 8% for grass/thick cover) Max. Discharge from 1"/Hr Storm ?. 3 ~ cfs Max. Discharge to Level Spreader 3, 3 cfs Filter Strip/ Zone 1 Buffer Vegetation ~a CoJ~I Filter Strip/ Zone 1 Buffer Width O ft. Filter Strip/ Zone 2 Buffer VegetationrA.ik '~ocw cope ~ Filter Strip/ Zone 2 Buffer Width 2 y ft. (Discharge rate from extended detention wetland or pond) (Grass/Thick ground cover or Forested) Bypass Method Used ~a ~~'f1>°( bo ~ Please include a worksheet for this. II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. Applicants Initials G Wt L Project Site was visited prior to designing level spreader system. ~ ryt G Date of the Site visit. Please attach time-dated digital photos of existing buffer conditions. Gm L Level spreader length is at least: 13 ft. per cfs for thick ground cover / grass; OR 65 ft per cfs for 50- footcanopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot forested buffer; OR a weighted average of the two vegetation types within the buffer/filter strip). C Iv) C All ground cover types and their widths have been labeled on the construction plans. G+~ G All contours have been depicted on the construction plans. M L No structures are located in protected buffers (must meet no practical alternatives criteria). G M G No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader. r Ati ~/ Construction details for the level spreader have been provided. C-Vl f~ The operation and maintenance agreement signed and notarized by the responsible party is provided. No practical alternatives explanation +Variance request. (Level Spreaders in Series only). Bypass method used: C ~C Bypass conveyance method is specified and construction details and calculations are provided. G A~ (i Alternative design option is specified and plan details and calculations are provided. ~. MG Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. GlM ~ Construction details for the bypass and outlets are provided. RIM=251.50 c 24" RCP INV. IN=246.20 OUTLET TO LEVEL SPREADER (8" PVC) a~. .. ~ ...• ..tl 6' SPLITTER STORM SEWER MANHOLE (SB3) N.T.S 250.00E BRICK 24" RCP INV. OUT = 246.75 SUMP = 246.10 DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (112007) I. PROJECT INFO ATION (please complete the following information): Project Name : ~ ~ (/' 6/a 2 Contact Person: t n H ~ Cl, c w//,` tic/ Phone Number: (9! 9 1 36 /- Soc+~ Level Spreader ID: Level Spreader Length ft. (perpendicular to flow) Drainage Area f ~~ 77 ac. (on-site and off-site drainage to the level spreader) Impervious Area a11, a Fr .. ac. (on-site and off-site drainage to the level spreader) Forebay9ke~~' 1~0 ~ .t_7 9~' cu ft. (0.2% of the contributing impervious surface area) Maximum Filter Strip/Buffer Slope ~ % (6% for forested/leaf littler cover, 8% for grass/thick cover) Max. Discharge from 1"/Hr Storm 9; a ~/ cfs Max. Discharge to Level Spreader 9, ~ 5/ fs {Discharge rate from extended detention wetland or pond) Filter Strip/ Zone 1 Buffer Vegetation 11,~/t or~a+ co/t~ (Grass/Thick ground cover or Forested) Filter Strip/ Zone 1 Buffer Width O ft. Filter Strip/ Zone 2 Buffer Vegetation ~ cov~~ Filter Strip/ Zone 2 Buffer Width ~D ft. Bypass Method Used bo Please include a worksheet for this. II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. Applicants Initials al/!, Project Site was visited prior to designing level spreader system. I'-1, Bypass method used: ~' /'k~ Bypass conveyance method is specified and construction details and calculations are provided. C ~ C Alternative design option is specified and plan details and calculations are provided. C~ L Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. C -M G Construction details for the bypass and outlets are provided. Date of the Site visit. Please attach time-dated digital photos of existing buffer conditions. G ~G Level spreader length is at least: 13 ft. per cfs for thick ground cover /grass; OR 65 ft per cfs for 50- footcanopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot forested buffer; OR a weighted average of the two vegetation types within the bufferlfilter strip). M G All ground cover types and their widths have been labeled on the construction plans. ~-,+~C All contours have been depicted on the construction plans. ('_M G No structures are located in protected buffers (must meet no practical alternatives criteria). Gn/I,li No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader. C M~ Construction details for the level spreader have been provided. IK C The operation and maintenance agreement signed and notarized by the responsible party is provided. No practical alternatives explanation +Variance request. (Level Spreaders in Series only). urre s'-o• C/) b y y H O ~ ~ Z ~ ~ N ~ Vl ~~ 1~ x 0 r 1:'x.32222 DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (112007) I. PROJECT INFORMATION (please complete the following information): Project Name : G Contact Person: r k ,~ ar( Phone Number: (9~ f) ~6 /- 5~~~ Level Spreader ID: S Level Spreader Length 11 ~ ft. (perpendicular to flow) Drainage Area ~ ac. (on-site and off-site drainage to the level spreader) Impervious Area ~ ac. (on-site and off-site drainage to the level spreader) Forebay AFea I/, /. j6 GO cu ft. (0.2% of the contributing impervious surface area) Maximum Filter Strip/Buffer Slope ~ % (6% for forested/leaf littler cover, 8% for grass/thick cover) Max. Discharge from 1"/Hr Storm d, S7 cfs Max. Discharge to Level Spreader 8. S"7 cfs (Discharge rate from extended detention wetland or pond) Filter Strip! Zone 1 Buffer Vegetation ?'Nick Gio„eo~ ~oJ~i (Grass(fhick ground cover or Forested) Filter Strip/ Zone 1 Buffer Width 30 ft. Filter Strip/ Zone 2 Buffer Vegetation TI~~i(c G~a,~..l CoJ~r Filter Stripf Zone 2 Buffer Width ~ ~ ft. Bypass Method Used < < Please include a worksheet for this. II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. if a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. A licants Initials C ~ Project Site was visited prior to designing level spreader system. M G Date of the Site visit. Please attach fime~lated digital photos of existing buffer conditions. G~ G Level spreader length is at least: 13 ft. per cfs for thick ground cover /grass; OR 65 ft per cfs for 50- footcanopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot forested buffer; OR a weighted average of the two vegetation types within the buffer/filter strip). C ~U C All ground cover types and their widths have been labeled on the construction plans. CMG All contours have been depicted on the construction plans. (1-'1L No structures are located in protected buffers (must meet no practical alternatives criteria). C M.G No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader. GMG Construction details for the level spreader have been provided. G~'-'tfi The operation and maintenance agreement signed and notarized by the responsible party is provided. fC No practical alternatives explanation +Variance request. (Level Spreaders in Series only). Bypass method used: (' ~ Bypass conveyance method is specified and construction details and calculations are provided. GM G Alternative design option is specified and plan details and calculations are provided. G M L Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. ~ M Ci Construction details for the bypass and outlets are provided. X ase urrent rawings - wg, u ip er, 5'-5" r 1--1 y t~ r y O ~ ~ z ~ ~ :~ N ~ ~ ~~ M~ W 0 r t~ 6'-8~ BOA ~S~ p a rn 10 N I 1 I °: -T-~-----I-----L-T- I I -...I I-- I ---- - I -1 r-- I I - ----- I 1 w ° I ; I I I A ~ I I ~ v ~ ~ ~ I I o ~~ w I I I I ~ N `~ -- --- - --i r- I - ---- o I I-- --~ ~ - -I I 0 I o I ~ I ~ I ~; n -,J o I u v ° I I v ~' I I I-- I 1 I -~---1- ---T-----~---L- m -~ ~ o I I I ~; r 1 N V W O DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (112007) I. PROJECT INFORMATION (please complete the following information): Project Name : ~ Contact Person: ~' tr Phone Number: (9i9' 136/"~~ Level Spreader ID: G, Level Spreader Length ',~5~ ft. (perpendicular to flow) Drainage Area 3, 3 ~/ ac. (on-site and off-site drainage to the level spreader} Impervious Area o). o$ ac. (on-site and off-site drainage to the level spreader) Forebay.Are~r vo% 36 y cu ft. (0.2% of the contributing impervious surface area) Maximum Filter Strip/Buffer Slope ~ % (6% for forested/leaf littler cover, 8% for grassithick cover) Max. Discharge from 1"/Hr Storm f. S~ cfs Max. Discharge to Level Spreader /, b'~ gfs (Discharge rate from extended detention wetland or pond) Filter Strip/ Zone 1 Buffer Vegetation 7-~~'tk G~o.~d co/{ / (Grass/Thick ground cover or Forested) Filter Stripl Zone 1 Buffer Width 3 O ft. Filter Strip! Zone 2 Buffer Vegetation Tk,i k ~iow~o/ co /~f Filter Strip/ Zone 2 Buffer Width ~ o ft. Bypass Method Used 1 ; p, l bd1~ Please include a worksheet for this. II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. Aoolicants Initials ~' W1. G Project Site was visited prior to designing level spreader system. rk L Date of the Site visit. Please attach time-dated digital photos of existing buffer conditions. G +'~ ~- Level spreader length is at least: 13 ft. per cfs for thick ground cover /grass; OR 65 ft per cfs for 50- footcanopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot forested buffer; OR a weighted average of the two vegetation types within the bufferffilter strip). rat C~ All ground cover types and their widths have been labeled on the construction plans. r MG All contours have been depicted on the construction plans. +-~G No structures are located in protected buffers {must meet no practical alternatives criteria). ~ rtn.~ No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader. 6.v. G Construction details for the level spreader have been provided. ~ M, C~ The operation and maintenance agreement signed and notarized by the responsible party is provided. ,QJ~A No practical alternatives explanation +Variance request. {Level Spreaders in Series only). Bypass method used: C M.L Bypass conveyance method is specified and construction details and calculations are provided. GM G Alternative design option is specified and plan details and calculations are provided. (; ML Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. GM L Construction details for the bypass and outlets are provided. Upstream Node CB-16 CB-15 CB-14 CB-13 CB-12 CB-5A CB-6 CB-8 CB-10 CB-5 CB-9 CB-4 CB-7 CB-3 CB-2 JB-1 r SB-3 DI-28 DI-27 DI-26 DI-25 DI-24 SB-2 CB-22A CB-22 CB-20 CB-21 CB-18 CB-19 CB-17 SB-1 Downstream Node CB-15 CB-14 CB-13 CB-12 CB-10 CB-5 CB-5 CB-9 CB-9 CB-4 CB-7 CB-3 CB-3 CB-2 JB-1 SB-1 FES-1 DI-27 DI-26 DI-25 D I-24 SB-2 FES-23 CB-22 CB-21 CB-19 CB-19 CB-17 CB-17 SB-2A FES-16 1 in/hr Storm Event Upstream Invert Section Size Elevation (ft) 15 inch 301.35 15 inch 300.9 15 inch 299.2 15 inch 289.7 15 inch 289.3 15 inch 286 15 inch 278.9 15 inch 274 15 inch 282.25 15 inch 278.5 18 inch 273.35 15 inch 268.25 24 inch 267 24 inch 262.5 24 inch 260 24 inch 252 24 inch 246.1 15 inch 289 15 inch 276.4 15 inch 272 15 inch 255.5 15 inch 247 15 inch 243.5 15 inch 311.05 15 inch 310.6 15 inch 303.35 15 inch 305.55 15 inch 305.4 15 inch 303.05 15 inch 302.1 15 inch 301.6 Upstream Structure Hydraulic Grade (ft) 301.54 301.17 299.48 290.01 289.65 286.16 279.16 274.13 282.61 278.89 273.75 268.67 267.4 263.06 260.64 252.64 246.74 289.21 276.76 272.37 255.88 247.41 243.91 311.2 310.8 303.47 305.77 305.54 303.33 302.44 301.87 The 1"/hr storm model gives HGL elevations of 246.74, 243.91 and, 301.87 for splitter boxes SB-3, SB-2 and, SB-1, respectively. This determines the invert out of the main by-pass pipe in the splitter box. The sump of the splitter box is set at the upstream invert elevation. This will be the invert out of the 4" PVC that is to pass the 1 "/hr event to a preformed level spreader. Anything greater than 1 "/hr shall enter the by-pass pipe and flow to the velocity dissipator pad. I in/hr Storm Event Upstream Downstream Section Upstream Invert Upstream Structure Node Node Size Elevation ft H draulic Grade ft c6-51 LB-50 15 inch 308.30 308.47 CB-50 CB-49 30 inch 305.20 306.01 CB-47 CB-46 15 inch 308.75 308.96 DI-41 CB-40 15 inch 290.00 290.21 CB-49 GB-48 30 inch 304.50 305.32 CB-46 CB-45 15 inch 308.15 308.53 CB-40 CB-39 18 inch 289.00 289.23 CB-48 CB-44 36 inch 303.50 304.28 CB-45 CB-44 15 inch 305.90 306.29 CB-39 CB-38 18 inch 288.15 288,39 CB-43 CB-42 15 inch 300.1b 300.24 CB-44 CB-42 30 inch 301.90 302.79 CB-38 GB-37 18 inch 287.7b 287,95 CB-42 CB-36 30 inch 298.00 298.90 CB-37 CB-36 1$ inch 287.25 287.58 CB-36 CB-35 36 inch 285.4b 286.31 C6-35 CB-34 36 inch 284.4b 285.35 CB-34 CB-33 36 inch 283.90 284.85 CB-32 CB-31 15 inch 282.00 282.12 CB-33 ~B-31 36 inch 276.00 276.95 CB-31 S6-4 36 inch 270.00 270.96 SB-4 FES-29 36 inch 268.OOr 268.96 CB-89 CB-88 15 inch 325.55 325.74 CB-87A CB-87 15 inch 320.40 320.52 CB-88 CB-87 15 inch 325.20 325.44 CB-87 CB-86 15 inch 319,80 320.11 CB-65 CB-63 24 inch 310.00 310.42 CB-86 CB-85 15 inch 31.7,55 317.87 CB-63 CB-62 24 inch 309.30 309.77 CB-85 CB-84 15 inch 315.50 315.92 CB-62 JB-61 24 inch ~ 306.65 307.15 CB-74 CB-73 15 inch 319.35 319.48 CB-83 CB-82 15 inch 311.10 311.25 CB-84 CB-82 15 inch 314.45 314.87 CB-60A CB-60 15 inch 300.00 300.00 JB-61 CB-60 24 inch 306.25 306.75 CB-73 CB-71 15 inch 318.90 319.05 CB-72 CB-71 15 inch 313,25 313.44 CB-70 CB-69 15 inch 308.50 308.74 CB-81 CB-80 18 inch 298.30 298.48 CB-82 CB-80 15 inch 310.70 311.18 CB-59 CB-58 15 inch 302.50 302.66 CB-60 CB-58 24 inch 298.45 298.96 CB-71 CB-68 15 inch 312.90 313.16 CB-69 CB-68 15 inch 307.20 307.49 CB-80 CB-79 18 inch 297.00 297.54 GB-58 DI-57 24 inch 297.65 298.22 CB-68 JB-67 15 inch 306.40 306.81 CB-79 CB-78 24 inch 294.55 295..06 DI-57 C6-56 24 inch 285.90 286.51 J6-67 DI-66 15 inch 302.00 302.41 CB-78 CB-77 241nch 291,75 292.27 CB-77A CB-77 15 inch 293.80 293.80 CB-56 CB-55 24 inch 285.30 285.91 DI-66 CB-55 15 inch 290.00 290.45 CB-77 CB-75 24 inch 290.90 291,47 CB-76 CB-75 15 inch 288.20 288.38 CB-55 CB-54 30 inch 281.40 282.12 CB-75 CB-53 24 inch 287,15 287.76 C6-54 CB-53 30 inch 281.00 281.75 CB=53 SB-5 36 inch 275,00 275.93 S6-5 FES-52 36 inch 266.00 266.93 C6-97 CB-96 18 inch 310.00 310.25 DI-95 GB-94 30 inch 307.70 308.00 CB-96 C6-94 18 inch 309.20 309.55 CB-93 CB-92 15 inch 325.00 325.11 CB-94 CB-91 30 inch 307,00 308.63 CB-92 CB-91 15 inch 324.15. 324.31 CB-91 SB-6 30 inch 305.80 307.44 SB-6 FES-90 30 inch 305.00 305.42 The 1"/hr storm model gives HGL elevations of 268.96, 266.93 and, 306.64 for splitter boxes SB-4, SB-5 and, SB-6, respectively. This determines the invert out of the main by-pass pipe in the splitter box. The sump of the splitter box i5' set at the upstream invert elevation. This will be the invert out of the 15" RCP that is to pass the 1 "/hr event to a preformed level spreader. Anything greater than 1 "/hr shall ehter the by-pass pipe and flow to the velocity dissipator pad.