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HomeMy WebLinkAbout20061139 Ver 1_More Info Received_20060815.~ ~ Soil & Environmental Consultants, PA 11010 Raven Ridge Road Raleigh, North Carolina 27614 Phone: (919) 846-5900 Fax: (919) 846-9467 www.SandEC.com August 15, 2005 S&EC Project #9477.W2 DWQ Project #06-1139 Department of Environment and Natural Resources Division of Water Quality Attn: Cyndi Karoly/Cynthia Van Der Wiele/Lia Myott 2321 Crabtree Boulevard Suite 250 Raleigh, NC 27604 ~ n~nr~ n Re: Reply to the Division of Water Quality's Request for More Information The Woods of Blair Hill Subdivision-EXPRESS REVIEW PROGRAM ~ ~ ~ r,; t ;, / ~;uh Wendell, Wake County, NC , To Whom It May Concern: '~F'`~1-~+~F~ti ` ~ rC;~~ ~ ~?~=0 The purpose of this letter is to respond to your Request for More Information letter dated August 10, 2006. The original questions/requests are copied below as they appear within letter and are then followed by our response. In addition, because of an inconsistency within the original PCN and impact maps, a revised PCN is also being resubmitted. Additional Information Requested: 1. Wetland, Stream and Buffer Impacts: a. Please be advised that the 401 Water Quality Certification/Buffer Authorization will require deed restrictions on all lots bordering streams, riparian buffers, and/or wetlands. As per condition #16 within General Water Quality Certification (WQC) 3402, we are aware of the deed restriction requirement. However, please understand that it is typically not practical to file these deed restrictions/notifications within 30 days of the issuance of the 401 Water Quality Certification or 404 Nationwide Permit Verification as stated within condition #16 of WQC 3402, developers need final approvals from the local municipality of the proposed development before lots can be recorded and final approvals cannot be obtained until after the approvals from the USAGE and the DWQ. We would request that the DWQ incorporate the deed restrictions utilizing an alternative condition that is often used with 401 Approvals stating the following: Deed notification or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in place prior to impacting any wetlands, waters and/or buffers approved for impact under this Certification Approval and Authorization Certificate. A sample deed notification can be downloaded from the 401/Wetlands Unit web site at http:h2o.enr.state.nc.us/ncwetlands. The text of the sample deed notification may be modified as appropriate to suit to this project. b. Plan Sheet 1 depicts construction envelopes extending into riparian buffer zones. Current riparian buffer impacts (not including envelope impacts) are listed as 0.272 acres, which is allowable under the Neuse Buffer rules. However, additional impacts while clearing/grading within the building envelopes could trigger mitigation. Charlotte Office: 236 LePhillip Court, Suite C Concord, NC 28025 Phone: (704)720-9405 Fax: (704)720-9406 Greensboro Office: 3817-E Lawn~ale Drive Greensboro, NC 27455 Phone: (336)540-8234 Fax: (336)540-8235 As per request 2.f, building footprints for the requested lots have been added to the site plan. In addition, even though clearing and grading is allowed within Zone 2 of the riparian buffers, no impervious structures will be constructed within the remaining, un-impacted riparian buffers for this proposed subdivision and deed restrictions will be implemented within the project property boundaries for future home owners. 2. Diffuse Flow Requirements/Stormwater Management: a. Please include the contours on Sheet 3 in order to evaluate your diffuse flow provisions. As requested, contours have been added to Sheet 3 to better evaluate the diffuse flow provisions. b. Please remove level spreader #2 to outside of Zone 2 of the riparian buffer. As requested, level spreader #2 has been removed outside of Zone 2 of the riparian buffer. c. Level spreader #3 is undersized for the discharge indicated. As requested, level spreader #3 has been properly sized. d. Please include a typical detail for the level spreaders and preformed scour holes. As requested, a typical detail for the level spreaders and preformed scour holes has been submitted. e. Please depict permanent drainage easements on a plan sheet and record on all affected lot deeds. As requested, we have changed the language to "permanent drainage easements" on the plan sheet and will be recorded along with all deed restriction at the Wake County Register of Deeds before any impacts take place to jurisdictional waters or riparian buffers. f. Please depict building footprints for lots 1, 6, I1, 12, 19, 20, 22, 23 and 24. DWQ is concerned about the proximity of the houses and backyards to level spreader and/or riparian buffers on these lots. As requested, building footprints have been added to lots I, 6, 11, 12, 19, 20, 22, 23 and 24. g. Operations and Maintenance Manual: i. Please explain what you mean by `private drainage easement". DWQ is concerned that access level spreaders and other devices for routine maintenance and inspection is legal and accessible. The Operations & Maintenance Manual and the Erosion Control and Grading Plan (Sheet 3) have both been revised to state "drainage easement" rather than "private drainage easement" to allow access for routine maintenance and inspections. ii. Please include a replacement schedule for the treated wood level spreader lips; wood is susceptible to rot and other problems. The devices need to be maintained in perpetuity. The treated wood level spreaders have been changed to be concrete level spreaders, please see Operations & Maintenance Manual Section 1.2.1. iii. Please explain the use of biannual "minimum IOOO lb/acre "fertilizer applications in a NSW and 303(d) listed watershed without performing soil nutrient analysis testing. DWQ will support the use of a one-time application after construction and in locations that require reseeding. The biannual fertilizer applications have been modified to a ONE TIME application of fertilizer if necessary; please see Operations & Maintenance Manual Section 1.2.4 2 We anticipate that this answers all of the DWQ's questions in order to complete the final review process fora 401 Water Quality Certification. If you have any further questions or any additional explanation is needed, please don't hesitate to call. Sincerely, ~~~I~~~~, 1 c~ Debbie Edwards Environmental Specialist CC: Joe Lyle-Millridge Companies Incorporated, 818 S. White Street, Wake Forest, NC 27587 Attachments: 1) Revised PCN 2) Impact Maps (sheets 1, 2, 3 & 4) 3) Level Spreader Worksheets 4) Overall Site Plan (sheets 1-6) 5) Operations & Maintenance Manual 3 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: 39 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 Coa (~~? f Environmental Concern (see the top of page 2 for further details), c kgi~;~~~.` ~ r C' ~J II. Applicant Information AIJr ~ 5 X006 L~kNFt - w~,i th t~uH~ITY 1. Owner/Applicant Information WETLAIVpS A1VD STQRMWAI'~R ~gANCM Name: Millrid eg Companies Incorporated (Attn: James M. Adams, Sr.L Mailing Address: 818 S. White Street Wake Forest, NC 27587 Telephone Number: 919-556-5418 Fax Number: 919-556-6672 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: Debbie Edwards- Soils and Environmental Consultants, PA Company Affiliation: Debbie Edwards Mailing Address: 11010 Raven Ridge Road Ralei~,h, NC 27614 Telephone Number: 919-846-5900 Fax Number: 919-846-9467 E-mail Address: dedwards(a~sandec.com Page 1 of 9 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: The Woods of Blair Hill 2. T.LP. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): 1783-44-9147, 1783-54-3219, 1783-54-7392 4. Location County: Wake Nearest Town: Wendell Subdivision name (include phase/lot number): The Woods of Blair Hill Directions to site (include road numbers/names, landmarks, etc.): 64 East (businessLright on SR_1003, left on Lake Glad Rd. (SR 2358), property located on the east side of Lake Glad R~500 feet from road,~approximately 1,075 feet north of its intersection with Old Nowell Rd. 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): 35.7657 °N 78.3775 °W 6. Property size (acres): +/- 40 acres 7. Name of nearest receiving body of water: Buffalo Creek & UT to Buffalo Creek 27-57-16- (3), C; NSW 8. River Basin: Neuse River 03-04-06 (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 existing conditions on the site are forested and agricultural. The general land use in the vicinity of the project is residential. Page 2 of 9 10. Describe the overall project in detail, including the type of equipment to be used: The proposed~roject is for a residential subdivision with permanent impacts resulting from the installation of a road these impacts are necessary for accessing the entire property. Heavy equipment typically used for road construction and excavation will be employed for this project. 11. Explain the purpose of the proposed work: The purpose of the proposed work is to provide additional housing for the area. Proposed impacts to jurisdictional areas are needed in order to gain access to the entire property. 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 USAGE 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. On March 31, 2005, S&EC conducted a detailed wetland delineation and Neuse River Buffer evaluation on the entire site. On June 28, 2005, Mr. Eric Kulz with the NC- DWO conducted a site visit to confirm our buffer determination (NBRRO OS-173). On Jule 2005, Mr. Thomas Brown with the USAGE conducted a site visit to confirm jurisdictional features and to determine important vs. unimportant jurisdictional waters, the wetland survey was submitted to the USAGE for signature on June 22, 2006, S&EC has yet to receive the signed copy of the Jurisdictional Determination. 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 permits are anticipated at this time. 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. Page 3 of 9 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: Proposed permanent impacts include 103 linear feet of perennial/important stream channel, 48 linear feet of intermittent/unimportant stream channel and 0.03 acres of wetlands. 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, separately list impacts due to both structure and flooding. Wetland Impact Type of Wetland Located within Distance to Area of Site Number Type of Impact (e.g., forested, marsh, 100-year Nearest Impact (indicate on map) herbaceous, bog, etc.) Floodplain Stream (acres) ( es/no linear feet Impact #2 Permanent/Road Herbaceous-headwater No +/- 120' 0.03 Crossing wetland Total Wetland Impact (acres) 0.03 3. List the total acreage (estimated) of all existing wetlands on the property: 5.26 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, multiply length X width, then divide by 43,560. Stream Impact perennial or Average Impact Area of Number Stream Name Type of Impact Intermittent? Stream Width Length Impact indicate on ma) Before Im act (linear feet acres) Impact #1 UT to Buffalo Creek permanent-Road perennial 11' -12' 103' 0.033 Crossing Impact #4 UT to Buffalo Creek permanent-Road Intermittent 14' - 15' 48' 0.019 Crossing Total Stream Impact (by length and acreage) 151' 0.052 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 fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Name of Waterbody Type of Waterbody Area of Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact (indicate on ma) ocean, etc.) acres N/A N/A N/A N/A N/A Total Open Water Impact (acres) N/A Page 4 of 9 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): 0.052 Wetland Impact (acres): 0.03 O en Water Im act (acres): 0 Total Impact to Waters of the U.S. (acres) 0:082 Total Stream Impact (linear feet): 151 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.): N/A Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): N/A Current land use in the vicinity of the pond: N/A Size of watershed draining to pond: N/A Expected pond surface area: N/A VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It maybe 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 applicants requested S&EC to complete a detailed, wetland delineation on the entire site, to aid in developing a site plan that would avoid & minimize the impacts to the maximum extent practicable. Proposed impact #'s 1, 2 & 4 are necessary in order to access the property; the property owner was required to purchase an easement on the adjacent land to access the property from a state road. The riparian wetlands adjacent to Buffalo Creek and Buffalo Creek have been avoided. 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 Page 5 of 9 freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USAGE - 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 USAGE 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. 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. In similar situations in the past where stream impacts are less than 150 linear feet to important/perennial streams or that temporary impacts to unimportant/intermittent streams have occurred, stream mitigation is not required by the USAGE and can not be required by the NC-DWQ, therefore mitigation has not been proposed. However, if mitigation should be required then the applicant shall utilize the Ecosystem Enhancement Program. 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): 0 Amount of buffer mitigation requested (square feet): 0 Amount of Riparian wetland mitigation requested (acres): 0 Page 6 of 9 Amount ofNon-riparian wetland mitigation requested (acres): 0 Amount of Coastal wetland mitigation requested (acres): 0 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 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? 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. IMPACT #1 (permanent road crossinal Zone* Impact (s uare feet Multiplier Required Miti ation 1 5,142 3 (2 for Catawba) N/A 2 3,500 1.5 N/A Total 8,642 N/A [MPACT #3 (tem orar utilit crossin Zone* Impact Multiplier Required (s uare feet) Miti ation Page 7 of 9 1 1,415 3 (2 for Catawba) N/A 2 960 1.5 N/A Total 2,375 N/A IMPACT #4 (permanent road crossing) Zone* Impact s uare feet) Multiplier Required Miti ation 1 1,871 3 (2 for Catawba) N/A 2 2,052 1.5 N/A Total 3,923 N/A * 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. 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. Buffer mitigation is not reauired because all proposed riparian buffer impacts are considered "Allowable". 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. The proposed plan is for a residential subdivision with lots ranging in size from 20,000 ft2 to 61,130 ft2. Attached is an impervious breakdown for your review. 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. The development will connect to the Town of Wendell sanitary sewer system. The Town will ensure that the capacity of their system is not exceeded. 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 8 of 9 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: We have reviewed the "DRAFT Internal Policy, Cumulative impacts and the 401 Water Ouality Certification and Isolated Wetland Programs" document prepared by the NC Division of Water Quality on October 3 2002 version 1.6. The draft states that most residential subdivisions are unlikely to cause cumulative impacts. The Woods of Blair Hill does not meet any of the three criteria of private projects that can clearly result in cumulative impacts. We anticipate that will advise us if a qualitative or quantitative impact analysis is required. 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.) Page 9 of 9 DWa Project No._ ~ - L) 3°t DIVISION OF WATER Qt1AU'TY • LEVEL SPREADER WORKSHEET I. PRWEC71Nf-OtiblATtON (please complete the topowing information): Project Name : .~! ~°~~ F x- ""~° Contact Person: Level Spreaoer ID:. gyp. I L~~~~~ lave! Spreader Length ~/~~ ft• Drainage Area _ ac. Impervpus Area ~q ~ ~ Maximum Fitter StriplButfer Slope .+- % grass Max. Discharge from a 14 Year Storm (3.Z.S _ cis Maz. Discharge to Level Spreader _ ~_~~--c~ Filter Strio/Buffer Vegetation Fhone Numt~er: (perpendicular to flow) (on-site and ofl-site drainage to the tewl spreader) (on•site and of(-site drainage to the level spreader) (6% for forested, {eaf littler cover, 8% for thick ground cover)` (thick ground cover or grass, canopied forest with leaf litter groundcoverl Pre-treatment or Bypass Method ~ REQUIRED ITEMAS CHECKLIST !n;tial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. !f a r,aquirement has not been met, attach an explanation o(wty. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMF, desgn calculei;ons, Plans and speafications stwvving all BhtPs and outlet structure details, a detailed drainage plan and a lolly executed operation and mantenance agrearnent. An incomplete submittal package w;ll result in a request for additional informstion and will substanfially delay fnal review and aRproval of the project. ~plicants Initials ~~~~Level spreader is at least 13 h. per cis for thick ground cover or grass or 100 ft per cfs ;n canopied forest with leaf litter. ~, Pre-Form Scour Holes are on Aat slopes ony ~. ~ No structures are located in protected butters' If bypass method specified in the Dratt Level Spreader Design Option Document: ~1(Qr -Bypass method is specified (ff apphhcable) and plan details and ca~ulations are provided (~}(pr Discharge to lave! spreader and subsequent filter strip is hydraul;cally and spatiallY'separate from the bypass discharge. No structures are located in protected buffers. ~(,~} plan deta~s for the bypass and outlets a-e provided. ~-- ~(!,J Ifs The operation and maintenance agreement includes annual erosion and vegetation repair. ' rovtded The operation and maintenance agreement signed and notarized by the responsible party 's p 'Level spreaders in series can be used on slopes of up to 154ro in forested areas with leaf littler cover or on sbpes of up to 25% in areas with thick ground cover or grass rf designed according to the Drag Level Spreader Design Option Document. This potentially requires e minor variance in protected buffer areas. In any event the second level spreader c8nnot be boated in Zone 1 of a protected buffer area. DWQ Project No. ~~ ~ `I `~- ` pIVIStON OF WATER QUALITY - IEVEt. SPREADER WORi(StiEET I. PRWECT tNFORM,4TlON (please complete the foQowtng~ formatic Project Nape : - ~ -~~ Phone Number: L`'31R } ~ } - 080 y Conlad Person: Level Spreaoer !D' , # L. ~P~'~ (~) l.eve! Spreader length 16 ft. (perpendwular to flow) Drainage Area ~_ 3•~L - ac• jor--site ~ off-site drainage to the tev.l spreader) Impervious Area ~ l . ac. (on-site and off-site drainage to the level spreader) Maximum F~ter StriplBu(ier Slope o % (tip for forested, leaf littler cover, $% For thick ground cover)` grass Max Discharge from a 10 Year Storm I Z . 82 cis Maz. Discharge to Level Spreader _~~ cis Filter Stripl8uffer Vegetation (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or bypass Method REQUIRED ITEMS CNI:CKLISi Initial in the spax Provided to indicate the fotbvrng design requirements have been met and supporting documentation is attached. 1f a n3qufriment has not been met, attach an expfanalion of wtiy. At a minimum, a complete stormweter management plan submittal includes ons sho•,erirtg all 6htps and outlet sGrjcture details, a detailed a worksheet for each SMP, design ealculetions, plans and spep~cati drainage plan and a fully executed operatial and maintenance agrearr>ent. An ir>canplete submittal paekaga will result ir. a reauesl (or additional information and will subs+.antiatfy delay final review and aPprvval of the project. Applicants Initials ~--Level spreader is at least 13 ft. per cis for thick ground cover or grass a 100 ft per ds in canopied forest with teat finer. Pre-Form Scour Holes are on flat topes ony No structures are boated in protected buffers` ff bypass method speafied in the Draft level Spreader Design Option Document: ~ ~gypass method is specified (if applicable) and plan deCls and calculations are provided ~ Discharge to level spreader and subseQueM filter strip is hydraulically and spatially-separate from the bypass discharge. t~ No structures a-e located in protected buffers. Plan details for the bypass and outlets are provide4_ ~_____The operation and maintenance agreement incArdes annual erosion and vegetation repair-'s rovtded ~ /{, The operation and maintenance agreement signed and notarized by the responsib4e party p ' Level spreaders in series can be used on slopes of up to 15% in forested areas widh leaf littler cover or on sbpes of up to 25% b areas with thick ground cover or grass if designed according to the Draft Levei Spreader Design Option Document This po~ndally requkes a mina variance in protected twffer areas. In any event the second level spreader cannot be boated in Zone 1 of a protected buffer area. oVYQ Projea No. 0~ - I plVISION OF WATER QUAU'TY • LEVEL SPREADER WORI(SHEET I. PROJECT I-~FOR~AATION (please complete the toUovdng information)' Project N~~~e : ~ ~nr~DC d~ 2 ~- 0808 Contact Person: - Phone Number: L9.19.-1--~~ Level Spreader ID' , &3 ~.(~t ~, ~> Level Spreader Lerx~ih jPS3.z ft. (perpendicular to flow) Drainage Area ~ 0- ~~. ~• (an-site ~ off'site drainage fA the lev_I spreader) Impervious Area _ 0 3~ ac. (on•site and off-site drainage to the level spreader) Ma>amum Fitter Stripl8uifer Sbpe % (&°fo for forested, leaf littler cover, 8% for tti~Ck ground cover)` grass Mau- Discharge from a 14 Year Storm 3 - If-f' cfs Max. Oiscttarge to Level Spreadet _~~.~= c(s (dick ground cover or grass, caropied forest wish leaf litter Filter Strip/Suffer Vegetation ~~~ ~`' - gr~ndcover) Pre-treatment or bypass Method N~ R>:Qt11RED REGIS CNECKLISi $~tv~Jp6 ~+~s. !n;tial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. 1f a requirement has not been met. attach an euptanatan of w1sy. At a rniriunum, a complet~l ~ Ps~and outlet structure deter s~ a derailed a worksheet for each SMP, design calculations, Plans and specifications sho•,ving drainage plan and a rutty executed operation and maintenance agrearnent. An icxornplete submittal packager will result in a request for additional information and wilt subs±antially delay fa~al review and approval of the project. AoDlicants Ini~ Level spreader is at least 13 ft, per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf litter. ',~ Pre-Form Scour Holes are on flat sbpes ony No structures are boated in protected buffers' If bypass method speafied in the Draft Laval Spreader Design Option Doaament: Bypass method is specified (if a,ppGcable) and plan decd-its and calculations are provided ~ (~pischarge to level spreader and subseCuent filter strip is hydraul;c:aly and spatially`separate from the bypass discharge. ~ No sWctures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repa;r. ,s rovided. ~..7/~. The operation and maintenance agreement signed and notarized by the responsible party p Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on sbpes of up to 25% in areas with dick ground cover a grass it designed accotding to the Oran Level Spreader Design Option Document. This potentially requires e mina variance in protected buffer areas. In any event the second lave) spreader cannot be boated in Zone 1 of a protected buffer area. DWQProjectNo._ ~~ _ ~~J I DIVISION OF WATER ~ALiTY -LEVEL SPREAD€R WORKSHEET I. PROJECT INFORMATION (please complete the following informaticn~~ Protect Name : ~ o Contact Person: Fhone Numt~er. j`~1_~1_-~~-og~8 Level Spreader 10' , ~ (~ CPS .~ (~ l> t_evel Spreader length -l c ~~= ft• (p~Pe~dicular to flow) Drainage Area ~~~_ ~• (on-site ~ off'site drainage to the le•,rel spreader) Impervious Area l . ac. (on-site and off-site drasr-age to the !eve! spreader) Maximum Fitter StripBuffer Slope % (6°k for forested leaf littler cover, 8% for thick ground cover)' grass Max Discharge from a 14 Year Storm 3, J~ cfs Max. Discharge to Level Spreader~~~ c(s (thick ground cover or grass, Caropied forest with leaf liner Filter Strip!(3uffer Vegetation groundcover) Pre-treatment or Bypass Method REQUIRED ITEMS CNECKLISi Initial in the apex provided to indicate the following design requirements have been met and wapte~'~~e~~nP~a submittal includes requirement has not been n-,ef, attach an ezptanatan o(why. At a rr~riunum, a complete storm a worksheet for each BMF, design calculations, plans and specifications sho•+ving ail 6f~tPs and outlet sGucture details, a derailed drainage plan and a fully executed operation and maintenance agrearnent. An irxanplete sutxnittal package w~l result in a reQuest for addiC~onal information and will subs±anfially delay final review and approval of the project. A lican Ini tats 4 '> ~~level spreader is at least 13 tl. per cfs for thick ground cover or grass or 100 K per ds in canap~ed forest with leaf litter. _ 2i> -f're-Form Scour Holes are on ttat sopes ony ~ No structures are boated in protected twffers` If bypass method speafied in the Dratl Level Spreader Design Optiat Document: ~. Bypass method is specified (if applicable) and plan details and calculations are provided ~ Discharge to level spreader and subsequent filter strip is hydraulically and spatially separator from the bypass discharge. No stuuctures are located in protected buffers. Plan details fa the bypass and outlets are provided. ~_The operation and maintenance agreement indudes annual erosion and vegetation repair. the operation and maintenance agreement signed and notarized by the responsible party is provided. ' Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on copes of up to 25% in areas with thick ground cover or 9r~ d des'gned according to the Draft Level Spreader Design Optbn Document. This po~ntiatly requKes e minor variance in protected buffer areas. In any event the second level spreader cannot be boated in Zone 1 of a protected buffer area. owQ Proyect No. 06 - l 13 pIVISION OF WATER QtIALtTY • LEVEL SPREADER wORxsHEET I. PROJECT INFORMATION (Please complete the toRovdng in2 aticn)' Project N~~>e : T r' t . ~~r ©~ Fhone Number: gL`~)__~~'" o g Contact Person: Level Spreaoer ID' . tk~ L~l ~. ~1~ lave! Spreader Lengm lZ0 ri. Drainage Area -~~- ~. ac. Impervious Nee % Maximum Fitter Stript(3uffer Slope grass Max. Discharge from a 14 Year Storm ~-cfs Maz. Discharge to level Spreader • Z3 c~ Filter Strip/Buffer Vegetation `~' Pre-treatment or bypass Method ~' (perpendicular to flow) (an-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6~ for forested, leaf littler cover, 8% for thick ground cover)' (thick ground cover or grass, canopied forest wish leaf litter groundcover) U. R>:QUIRED IT1:MS CHECKLIST rg design requirements have been met and supporting documen;aticn is attached. t( a Initial in the space provided to indicate the folbvr, requirement has not been met, attach an explanation of why. At a minimum. a complete` t81~~P~and ~t ~tn~ire ~tails~a derailed a worksheet for each f3MP, design ealculetions, Plans end specifications showing ration and maintenance agreement. An incomplete submittal package w~l result in a request for drainage plan and a tu1tY executed ope additional information and w~l subs±antially delay Gnat review and approval of the project. A titan In' 'ats ay ~_l.evel spreader is at least 13 tl. per cfs for thick ground cover or grass or 100 ft per ds wn carrc't~d rarest with Ve letter. ~~~`Pre-Form Scour Holes are ort fiat sbpes ony pi No structures are boated in protected buffers' It bypass method spedfied in the Drari Level Spreader Design Option Document: ~~ -~gypass method is speciC~ed (if applicable) and plan devils and calculations are proved ate from the bypass _!~, D'+scharge to level spreader end subsequent filter strip is hydraulically and spatial y'. par discharge. No structures are located in protected buffers. '~ plan details for the bypass and outlets are provided. ~~_ The operation and maintenance agreement includes annual erosion and vegetation repair. 's ravided. u~ the operation and maintenance agreement signed anti notarized by the resporuib4e party ~ p 'level spreaders in series can be ~' ~ ac~co~dngto the5Dra(t Level Spreader Design OpGo Deocument~Th~Potenhal y5 equ' es es with thick ground cover a grass g minor variar-ce in protected buffet are~• In any event the second level spreader cannot be boated in Zone 1 of a protected tw er area. oWa Projea No._ 0 6 l I °~ - [IIVlS1ON OF WATER Ql1AU'TY - OR}(SHE~ ~~vfZ F}ol.E. I. PROJECT INFORMATION (please complete the following information): Protect Name : Fhone Number: t~1.1191 ~~_-08~ Q Contact Person; Level Spreader I0: - it ~j ~~ ~ ~ ~> ~,~•; _ _ fi, (perpendicular to flow) lave! Spreader Length O ~~ ac. (on-site ~ off-site drainage to the levsl spreader) Drainage Area -' ~, (~ _ ac. (on-site and off-site dr~nage to the level spreader) Impervious Area - ~ (6g6 for forested, leaf littler cover, 8% for thick ground cover)' Maximum Fitter StriptBuHer Slope grass (, cfs Max. Oiseharge from a 19 Year Storm c~ Maz. Oischarga to Level Spreader (thick ground cover or grass, canopied wrest with leaf litter Filter Strip/Buffar vegetation groundwver) Pre-treatment or Bypass Mettrod II. REl]111RE17 t<EIAS CNECKt.151' i ~ rovided to indicate the folbwing design requirements have been met and supporting documentation is attached. I( a ndial in the space p requirErnent hss not been met, attach an ezptanation of why. At a ~ficatu ~ ~~~gt~l t~ P'"s~and o~ut~t structure detai!stta detailed a worksheet for each BMP, design calculations, plans and spec a wilt result in a reQuest for drainage pl2n and a lofty executed operation and maintenance agreement. An incanplete subm~taf paekag addi(~onal inioRnation and w~l substantiatly delay final review and approve! of the pro+ect. A lican In' 'ats level spreader is at least 13 h. Per cis for thick ground cover or grass or 100 ft Per cfs in canopied forest with leaf litter. ~__ ~j~ S -„Pre-Form Scour Holes are on flat sbpes only ~~ c No structures are boated in protected buffers` If bypass method spedfied in the Draft Level Spreader pesign Option I)ocumerd: ~ bypass method is specified (if appGcaWe) and plan details and calculations are provided t7ischarge to level spreader and s<rbsequent filter strip is hydraulically and spatially separate from the bypass f.1/~ ~- - - disdrarge. ~l~~No sfnsctures are located in protected buffers. plan details for the bypass and outlets are provided. ,S The operation and maintenance agreement includes annual erosion and vegetation repair s rovided. The operation and maintenance agreement signed and notarized by the responsible parry p • Level spreaders in series ~~ ~ noend a~cco~d~g totthe5Dre(t~evel Spreader Design OpUO Dorument~Th~is potentiallys equ' es es with thick ground cover a g g minor variance m protected buffer areas. In any event the second laver spreader cannot be boated in Zone t of a protected bu er area. ~r r' I G> +~ r' ~~ i t ~ f-i i)i!tlet -,, I i1, 1 r~'1 y 1t~ PLA~'J 'tiriEY~ .~~_mn~~,~t ~jv'I aP, t-ff~.tir~.r!:•ri~i~,~t ~ .r= In. InIllryv:~lUr,rJ flush rn.-t'ng +.,~5>s+~1} ~ to nct~,+"AI :+'n,.~r+C. • ~' ;,LGUr Hair'. iP=,H7 _:= -. ~r<f~, rf~,n tr+ ~, T~,r cb~rity? l ; (~fi'nln. typ: . Y. at;~~SSciF iii ,in~.t'~Iic7f if~~'S, r:. SECTION ~:-A Pike or ;;t.r-. :ti~tlrt PSR.-~ , r: • r~+ in:~ •1 ,~ '. < f ? 'k w `' w .~ ~ ~„ _ f`~+~tur+~ i. ]r ~):.ti ~1~ Liner: ~'i~~.~. ~-P,ip F~~p ~'~ ~-_ ~ _I "I' ' ~a<:I<,-J .l~tt•ick ,~"th F'It_r Fabrlc I~l(-'E. N. (,IS" (Zc,P~ - {~~E.=rn21~l~D Sc~fZ ~~ 10~'I~J!OI owQ Grojea No. ~ ~ ~" r ~ 3~ DIVISION OF WATER QUAta'TY - '~~°~~wORlCSHEET Sc~~2 t~b~E I. PROJECT INFORMATION (please complete the following information): Pro~eci NPn~e : ,~--ti~ ~JO~2DS--~~ u-- Conlad Person: ~IJD ltLE2 Fhone Number: Level Spreader ID:. ~ ~.. r7 i ~ ~ \ Level Spreader Length Drainage Area Impervious Area Ma~amum Fitter Stript8uffer Slope grass Max. Discharge from a 10 Year Storm Maz. Discharge to Level Spreader Filter Strip/8uffer Vegetation Pre-treatment or Bypass Method It. REQUIRED fTEµS CNECKLISi 6( n. _ 1.O°_I ac. d-H 8 ac. g x y .69 cfs .6 cfs (perpe~dwutar to flow) (on-site and off-site drainage to the level spreader) (on-site and oft-site drainage to the level spreader) (6°k for forested, leaf littler cover, 8% for thick ground cover)' (thick ground cover or grass, Canopied forest vriih leaf litter g;oundcover) Initial in the space provided to indicate the folbwing des'9n requirements have been met and supporting documen;aticn is attached, If a requirEment has not been met, attach an explanation of wiry. At a rr>;nvnum, a complete stormwater management plan submittal includes a worksheet for each BMP, design ealculetions, plans and specifications sho•~ving dl 6htPs and outlet structure details, a detailed drainage plan and a +uty executed operation and maintenanxe agreement. An incomplete submittal paekaga will result in a request for additional intormaiion and will substantially delay final review and approval of the project. At2Plicants Initials (l~'S Level spreader is at least 13 ft, per cis for th'~ctc ground cover or grass or 100 ft per ds in canopied forest with leaf lifter. ^Ij'j~'~ --Pre-Form Scour Holes are on Aar sopes ony -~ No structures are boated in protected butters' If bypass method speafied in the Draft level Spreader Design Cption pocument: ~JA Bypass method is specified (~ applicable) and plan details and calculations are provided UA Discharge to level spreader and subseq~.rent filter strip is hydraulicaly and spatially separate from the bypass discharge. _ ~~ No structures are located in proteded buffers. 1JA Plan detaUs fa the bypass and outlets are provided. 1?,tS The operation and maintenance agreement inck~des annual erosion and vegetation repair. ~~ the operation and maintenance agreement signed and notarized by the respo-uibfe party +s provided.. ' Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on copes of up to 25% in areas with thick ground cover a grass tt designed according to the Draft Level Spreader Design Option Document. This potentially requires e minor variance in proteded buffer areas. In any event the second level spreader cannot be boated in Zone 1 of a protected buffer area. (7i!;I~t ^', 's ,~``', 1~ ~_.. _.. . `.C.~nr"~ Fa•'r'- t ~~r'ir•t~cl ir;lr, ra~;> ~~, t?asin n:.t s~uw'r Tt~r I~b~rity? PLh'J '':'IEY! ,Pr`t(~ rf7!7.'1~;1-i ~ `: C, ~I ^ f~5('f ~ ~ ir;l:,ri'~ if~d'vf I~-i .~ 1 Call I t~'4•; I t~!' ~rJ f IU ~'r1 •n,~-t'ng I:Ytii~{t ~ d try n_tul-~~I •_;r~-I,.:n:,. 1~ ' :: ..~,~ J~,r ~~' n Irl .. T v p.. ,J ~~ , `. h c; tl k'~ Y r~ rFv t ~,:C • aF ncSi1F: ~~t iri .t'crllc7tiry(':, ,, ~_ yr .~ ;ECT10N A-A f. _ Pip. or ~';t.r ~~~•'^ _~~tlrt ~ P SF.M' I ~.'ki::C~A'K:. t Lin+r: ri:~~~RiF: Fw7Fi ~` ~---.(~ _I I`-I' 'ui~l<,_1.. _tt•i~k '~,~th F`It~r Fabrl~ Sc~2 ~~ I0~`I~!~ii 1 T[l0I~9P~ON :1\D Ati50C'IA't'ES, P~ Civil. (.tiai~~~f ~:,~~:~; • L~ti~~[~St ~z~~r~tiF~t~ • 1.r1~[~ PI.ANNI?~(:~ The Woods of Blair Hill Wendell, N.C. Operations & Maintenance Manual Developer: The Millridge Companies, Inc. 818 S. White Street Wake Forest, NC 27587 # (919) 556-5418 Prepared by: Thompson & Associates, P.A. 153 Holly Springs Road Holly Springs, N.C. 27540 # (919) 577-0808 August 2, 2006 Revised:.August 14, 2006 I>3 HOLI_.Y SP(ZfNGS R~?=~~> i ,,u~,i ~;919~ S7%-O~;On [1O1_t.Y SPRINGS. 1~C Z?~~0 c-, v ,~;t~g, j~'%_r~{,(jc~ 2 THOI41PtiON AND t1tiSOCIATES, P~1 C'iv!t f.u~!'! rt:!~c~ • 1. ~~r> tit !:vr ~ !~c! . 1.~1ND PI.ANNINtI NARRATIVE The maintenance of any Best Management Practice (BMP) installed to achieve flow attenuating requirements for The Woods of Blair Hill Subdivision shall be the responsibility of the property owner or other identified responsible party. In the case of residential subdivisions, Home Owners Associations must be established in order to identify the responsible party. This manual establishes general procedures for maintenance and operation of the allowed BMP type in accordance with the Town of Wendell and Division of Water Quality. It is important to note that only general maintenance tasks are identified here. All devices shall be maintained to original design standards. This agreement shall be signed and notarized by the responsible party to perform the tasks specified in the plan, including inspections, operation, and any needed maintenance activities. The BMP's will be inspected on an annual basis by a registered engineer, and a list of any required deficiencies or repairs will be forwarded to the property owner/responsible party. The property owner/responsible party will have 90 days to correct all deficiencies and make all repairs to the satisfaction of the Town Engineer. li3 fiOLLY S}'RIN(1S Ri~;~i> !!! !~!'!~t7~~f i919) ~7~-0~(l~ HOLLY SPRINGS. >ti~~C ?7~~0 i~ ~~ (4191 ~7?-06U« ~._.J TtiontY~oN .=~til~ A~soct.aTrs, PA Ct~~t f.ti~~~~i:~ I2I\r; • i.-atir~tit i:ci tint; • 1,~~ND PL~~NNIN(i 1. LEVEL SPREADERS 1.1 Location of Level Spreaders L.S.#1: Between lot #'s 24 & 25 in a 20' drainage easement, at the outlet of 30" reinforced concrete pipe and its dissipater. L.S.#2: Between lot #'s 11 & 12 in a 20' drainage easement, at the outlet of 24" reinforced concrete pipe and its dissipater. L.S.#3: Located in open space between lot #'s 14 & 15 in a 20' drainage easement, at the outlet of 18" reinforced concrete pipe and its dissipater. L.S.#4: Between lot #'s 19 & 20 in a 20' drainage easement, at the outlet of 24" reinforced concrete pipe and its dissipater. L.S.#5: Between lot #'s 22 & 23 in a 20' drainage easement, at the outlet of 24" reinforced concrete pipe and its dissipater. 1.2 Maintenance of Level Spreaders 1.2.1 Concrete Level Spreader Lip Level spreader lip to be constructed of concrete. The 3"x24" concrete wall must be placed vertically along the entire length of the level spreader at a 0% slope. The wall to be held in place by a 9"x12" concrete footer along the entire length of the spreader. Concrete lip must be 6" higher than the surrounding ground. Immediately downstream of the lip is a 3 foot wide, 3" thick layer of #57 stone with filter fabric at a 4% maximum slope. 1.2.2 Grass Type Moisture tolerant grass seeds shall be applied at a rate of 10 pounds per acre. Types could be for example: - Mixture of tall type fescue (e.g. chewing red fescue) - Japanese millet - Switch grass - Rice 1.2.3 Vegetation The drainage areas have a ground cover of water tolerant and erosion control resistant grass, which if properly maintained will prevent erosion of the slope and provide an easy surface for inspection. Level Spreader shall be maintained to keep grass cover dense and vigorous. I>3 }{OLL:Y SP121NGS Rig=~~> HOl_.LY SPRINGS. NC ??~~Q 711 I I'fIt)\I (~1I~}) J7'-(i~iO~ -- 4 THOMPSON :~VD AtiSOC'I;17,I~;S, PA Civi[ f.tic~i'~[I K(\'G • L.Atit~ S~ ~Z~`f ~ t~t~ • t.AND Pl_r1NN11~Ci Fertilizer should not be used but may be necessary before re-seeding of some bare areas. This should be done in October and April in order to establish good ground cover on areas where seed did not take or has been destroyed. Fertilizer (10-10-10) should be applied at a minimum rate of 1,000 pounds per acre. 1.2.4 Seeding & Re-Seeding After the construction, level spreader area shall be tilled before grass cover is established. Before seeding, aONE-TIME application of fertilizer (10-10-10 @ 1,000 #/ac) is allowed if necessary. The seed shall be evenly sown at a rate of three pounds per 10 pounds per acre. The seed should be covered with soil to the depth of approximately '/4". Immediately following the planting, the areas shall be mulched with straw. Periodic re-seeding of some grass areas may be required in October and April to establish good ground cover on areas where seed did not take or has been destroyed. 1.2.5 Trees and Shrubs There are no trees and shrubs allowed within the Level Spreader areas and their drainage easements. All trees and shrubs shall be removed from public drainage easements. 1.2.6 Erosion Erosion occurs when the water concentrates causing failure of the vegetation or when vegetation dies or when the boards are undermined. This sets up the environment for rill erosion and eventually gullies from the storm water runoff. These areas shall be inspected especially after rainfall event of 1" or more during a 24 hour time period. Proper care of vegetative areas that develop erosion is required to prevent more serious damage to the level spreaders. Rills and gullies shall be filled with suitable soil compacted and then seeded. Methods described earlier on vegetation shall be used to properly establish the grass surface. Where eroded areas are detected, the cause of the erosion shall be addressed to prevent a continued maintenance problem. Frequently, problems result from the concentration of runoff to one point of the level spreader areas instead of a uniform distribution of runoff. This can be corrected by releveling the concrete lip to the appropriate elevation, to more evenly distribute the runoff. Level spreader lip should be maintained to achieve sheet flow. Level Spreader MUST BE LEVEL (0% Slope). 1.2.7 Trash and Debris Trash acts as a barrier to storm water infiltration and attracts unwanted pests. The level spreader areas shall be kept clear of debris such as leaves, stones, large branches, loose bottles, cans, food containers and other forms of rubbish. Debris immediately up slope of the 1 ~3 t{OLLY Sl'1211~GS }2unu HOI.!_V $PRINGS_1~C??~40 ,, 5 TI-i0(~1PSt)N :1'~' D A1SOC'IA'TES, ['A Ci~it t ti~~itit t t;t~~; • [.~tit~St't:~t:~t~~~ • 1.rtNU I'1:1NNli~ta level spreader shall be cleaned to prevent long-term clogging. Also, debris can also be gathered immediately down slope of the level spreader causing localized damming, forcing the level spreader to have concentrated flow. The areas should be inspected after a rainfall event of 1" or more over a 24 hour time period and cleared of debris immediately, but no less than four times a year. 1.2.8 Sedimentation and Dredging Since the permanent level spreaders will be constructed after the entire site is stabilized with a stable vegetative ground cover, there will be little to none sedimentation. However, the level spreaders should be inspected after a rainfall event of 1" or more over a 24 hour time period and any sediment accumulation shall be removed to maintain original contours. The removed material shall be hauled offsite to a suitable landfill site or mounded somewhere on site and stabilized with a ground cover sufficient to restrain erosion. 1.2.9 Cutting Gras Grass height shall not exceed eight inches in height. 1.2.10 Maintenance Schedule - Remove trash quarterly. - Area to be inspected after a storm event of 1" or moreover a 24 hour time period. - At least annually, deposited sediment shall be removed to maintain original contours and grading. (0% slope) - At least annually, remove trees and shrubs from area of level spreaders. - Cut grass as needed, height not to exceed eight inches. - Re-seed any bare area in October and in April. Fertilize if necessary. - At least annually, replenishment of #57 stone and filter fabric. 1.3 Operation 1.3.1 Record Keeping Operation of the level spreaders shall include recording of the following: - Annual Inspection Report: A collection of written inspection reports shall be kept on record. Inspection shall be conducted annually. Copies shall be provided to the Town of Wendell Engineering Department. 153 IiOLLY SNI21N(iS Ri~;~l) IIOL.I,Y SPRINGS. 1\C?;'S~t1 FC ~ Plit)~I-: (919) 577-O}i(I~ I~-`tix (919} 577-f)6(lu 6 Tt~on~t~soN :~~t~ A~;soct:~rrF.s, PA ( ~~ ~~. (.ti~~l\~ ~ R[\ci • [.1~I) til ~:~'I ~ Itit; ~* L:1Nl) PI:~NNI?~(i Observations: All observations shall be recorded. Where periodic inspections are performed following a rainfall event of 1" or more over a 24 hour time period, these inspections shall be logged into the periodic inspection, operations and maintenance form. - Maintenance: Written records of maintenance and/or repair shall be recorded on the periodic inspection, operation and maintenance form. 1.3.2 Other Operational Procedures The owner shall maintain a complete and up-to-date set of plans (as-built drawings) and all changes made to the level spreaders over time shall be recorded on the as-builts. 153 }(OLLY SPRINGS R~,ni> 11 i i.~~i3t~~i (~)I~)) 57~-~1~;(~h Ii()i.l,l' SPRINGS. N(' ~~ia() ~. ,,~ jt11c}~ ~?'-i!l>tj~~ ~ i PROPOSED IMPACT AREAS -IMPACT #1 t ~ J ~- / /, / rJ 1 / r .~ . ~ .~ CH = CHANNEL, JW =JURISDICTIONAL WETLAND, NB = NUESE BUFFER, Z1 = ZONE 1, Z2 = ZONE 2. - ~'~ .~ IMPACT LOCATION TYPE 2 ~• LINEAR FT. (CH ONLY) 1451 * 1 CH (CH ONLY) 103 1 NB Z1 5142 Z2 3500 - TOTAL 8642 - *INCLUDES DISSIPATOR ~ ,~~ .~~ ~ / f •// _~ ~'~ ~ 4 ti 'f / ,,~ .. IMPACTED ~ ~~ ~~ ~~ i ~ . AREAS (INCLUDES , ~~ ,~` ~.~~ ,~ DISSIPATOR) ~'' STORMWATER / '~~. ~, ,~~~ i~ ~~, EASEMENT ~ 6~~~GS, ~~- ,~ ~~, ,' i ~~ -I ~. 20' ~~ ~~, l~/: ~ / , • ~ s/ , `SrEMP ~ f AMT ~~ ~ / ~ s ;' , / ~ ~' r . O ~ '_ .f~ .•. 1 .... ~ ......... .~ ~ Y::.. .~ . !' . ~ 0 .......,...... _ .... .... ~ 1. . , . ..~. 10. ~; . . . ~. ~ ~ P .i . ~ ~~ f ~~ -~ _. ~ IMPACT # 1 IMPACT MAP THE WOODS OF BL4 /R HILLS THOMPSON and ASSOCIATES, P.A. 153 HOLLY SPRINGS ROAD HOLLY SPRINGS, NC 27540 919 577-0808 FAX 919 577-0609 DATE 8-14-06 SURVEYED DRAWN DRAWING JOB N0. SCALE 1 " = 40' 78 LF 48" RCP WITH 24' LONG DISSIPATOR. PIPE TO HANDLE EXISTING FLOW THRU DRAW.. NO ROADWAY RUNOFF TO ENTER PIPE. ROADWAY RUNOFF TO FLOW TO o CI # 13 & 10 THEN TO BMP,~ .OWNER/DEVELOPER: a%~' ~' MILLRIDGE COMPANIES ' ~~~ ~~ 818 S. WHITE STREET ~` WAKE FOREST, NC 27587 ~ T"'~ (919) 556-5418 ~c= ~, ~<_, ~' %;~ 40 20 40 80 ~ " '~~ ~, SCALE 1n= YV J ~ I ,,, ,~ 20, , ~0 ,° ~~ ., `} ~' ,,,' ~, .r ,` 1 PROPOSED IMPACT AREAS - IMPACT ~2 1 // , f /. _/ ~. ; ~, IMPACT 2 LINEAR FT. LOCATION TYPE ~• (CH ONLY) 1500 2* JW (WL ONLY) \ CH = CHANNEL, JW =JURISDICTIONAL WETLAND, :~ '~~, NB = NUESE BUFFER, Z1 = ZONE 1, Z2 = ZONE 2. -~ ~ ,` *INCLUDES niccionTnp / / / / .~ ~ .~~' :~ \ `5'}~ '' t ~ J 50`+ .. NEI~~E . RI1~'ER - / BUFFER - J ' 1 o 1 1 i ~ ~ ~ ~~ // ~ ~ J #11 __- 12 IMPACTED WETLANDS C L'~ i ~ i '~ ~~I~ 3 4 PJ~~\G i i 35 0 ~~~~~ I a 1 IMPACT MAP THE WOODS OF BLA/R HILLS THOMPSON and ASSOCIATES, P.A. 153 HOLLY SPRINGS ROAD HOLLY SPRINGS, NC 27540 (919) 577-0808 FAX (919) 577-0609 ATE 8-14-06 (SURVEYED (DRAWN ING (JOB N0. (SCALE 1" = 40' IMPACT # 2 74 LF 30" RCP WITH 15' LONG DISSIPATOR. PIPE TO HANDLE EXISTING FLOW THRU DRAW. NO ROADWAY RUNOFF TO ENTER PIPE. ROADWAY RUNOFF TO FLOW TO CI # 11 & 12 THEN TO BMP OWNER/DEVELOPER: MILLRIDGE COMPANIES 818 S. WHITE STREET WAKE FOREST. NC 27587 (s 1 s) 55s-541 s 40 20 40 80 SCALE 1"= 40 ' 'O -2 ~' ~:-_-: 1- .V1~EF 1~?NDS ,, f SO' ~ ~ ,.-~ 20' WIDE TEMPORARY ~F~, ~~'' IMPACT FOR 8" SANITARY SF SEWER CROSSING UNDER ~i~F EXISTING CREEK WITH NO ~ ~ IMPACT TO CHANNEL. I ~~~ _ SANITARY SEWER TO BE F,~ ~_~r} `,,~ BORED ~c JACKED UNDER ~~~' r.... ` ~ , ~, .~ EXISTING CREEK. ,~ Jr~~'~~I~ ;~' ~~ r ,~ ,, J ' ~' ~~' __ ~ ,r . ,, C,L ~ ~ . ~,' '`, ~ ~ ~ ~ i CREEK ~ . ~ ,. . \ ~ ti ., ~ ~ ii / `~ ~ ~ ~~ ~~ . `~. ~~~ ~.~ ~ ~ i ~, ~~ i ~ ~, i f / i .... / ~ ~ , , ~~.. i .~.~.~.;.~.~.~.~.~.~ ~ IMPACTED ~ `, ~ .. ...~...... - AREAS - i i/ ~ :.:':..... j I TEMP.) _- I 9 ' f OPEN - ..~.~.~.~~~....~:~:...... ~ 30' o' SPACE i ~..i.~. ~ ~ ~ I ZN1 ~ N2 ,,~-'~ ....~. ,- ~ ..... j 50," _ ,fir ~ ~ ~ NEU~E ~ ~_ ~ ~ ~ ~ RIVER ~ ~ ~ ,-. ~ ~' ~ I ~ I BUFFER ~ ` .f-r' ~' ~' - o' 1 30' ! ~ ~ _/ -IMPACT ~ ~ ~ ' ~ % ~'~ N2 , ZN 1 ~ ~ ,_ P ~ ~ / ~ SP BPS _ I ~-' , `~F~ ..~,~ ~~ S ~ I NEUSE ~ ~`~ ~'~ F,Q I f~IVER ~ ~ ~ ~' ~ B-J FFER ~ C, ~ ~ .~A 15 ~ ~ ~~ ~~~ ~~~ F~ ~~ ~ 0~. ' ~` o PROPOSED IMPACT AREAS -IMPACT #3*'~ ~, ~,~~~ . `~ ~ ~~ IMPACT 2 LINEAR FT: LOCATION TYPE ~• (CH ONLY) 3 NB Z1 1415 - (TEMP. Z2 960 - IMPACT) TOTAL 2375 - ~~ _. ~~ ~ `PROPERTY LINE IS CENTERLINE OF CH =CHANNEL, JW =JURISDICTIONAL WETLAND, EXISTING CREEK NB = NUESE BUFFER, Z1 = ZONE 1, Z2 = ZONE 2. IMPACT MAP THE WOODS OF BLA/R HILLS THOMPSON and ASSOCIATES, P.A. 153 HOLLY SPRINGS ROAD HOLLY SPRINGS, NC 27540 919 577-0808 FAX 919 577-0609 DATE 8-14-06 SURVEYED DRAWN DRAWING JOB N0. SCALE 1" = 40' OWNER/DEVELOPER: MILLRIDGE_ COMPANIES 818 S. WHfTE STREET WAKE FOREST, NC 27587 (919) 556-5418 40 20 40 80 SCALE 1"= 40 ' PROPOSED IMPACT AREAS -IMPACT ~4 >-- ~O ~~ I C~ U ~` CH = CHANNEL, JW =JURISDICTIONAL WETLAND, ~ ~ NB = NUESE BUFFER, Z1 =ZONE 1, Z2 =ZONE 2. ~ ~ ~' ~ ~ ~~,~ *INCLUDES DISSIPATOR ~ ~ ~~~ ~ ~ ~ ~J' ~~ ~` l / / ~ ~ 1 ~ ~~~ ~ ~ W ~ ~ ~, m Q ~JG'~ ~' f ~~ . ~ ~ ~ , / . ~P X ~ ~ ~' ~ / VE EX. HEADWALL ~ ~ ~~ ~~ ~ ~ ~ ;' AND EXTEND EX. 36" RCP ,~ 32 LF WITH 15' LONG DISSIPATOR ~ ~~ SF` . ~ . ~ ~ ~ , ,~~. ~~ / ~ ; .,,,. ~~~ '„_ `~ i~ v . ~/ sQ ~l~~~ ~~~ J~~~ ' ~; L , ~ ~, /~~~ .~ ho IMPACTED ~--AREAS 20. ~CONSTMPORgRY ~ ESMT IMPACT EKE EX. 6p' R~• SR ~°UB~/ 23S'g C R/I~l~ ~~1 PUBS/c S~, ~'/G~i _~_ ~ -_ ____ i OWNER/DEVELOPER: 1 MILLRIDGE COMPANIES ~ 818 S. WHITE STREET WAKE FOREST. NC 27587 ~ (919) 556-5418 ~ r 40 20 40 80 SCALE 1"= 40 t ,;;; ; IMPACT LOCATION TYPE 2 ~~ LINEAR FT. (CH ONLY) 4* CH 835 48 (CH ONLY) (336 OUT OF R/W) (15 OUT OF R/W) 4 NB Z1 1871 - Z2 2052 - TOTAL 3923 - REPLACE AND EXTEND EX. 15" RCP 68 LF