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HomeMy WebLinkAbout20021715 Ver 1_COMPLETE FILE_20021023MEMORANDUM TO: John Dorney Regional Contact: Jennifer Frve Non-Discharge Branch WQ Supervisor: Steve aiiney Date: SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS Facility Name Spencers Trace County Guilford Project Number 02 1715 County2 Recvd From APP Region Winston-Salem Received Date 10/23/02 Recvd By Region 10/29/2002 Project Type residential development Certificates Stream Stream Impacts (ft.) AMMENnuffirmw w Permit Wetland Wetland Wetland Stream Class Acres' Feet im Type Type Impact Score Index Prim. Supp. Basin Req. Req. F 39 Stream P7(9) N F_ 17-5-(2) WSIV CA 30,608. ?- 145.00 145.00 F TT Buffers O Y O `? ??F___F_ X0,608: F F_ Mitigation Wetland MitigationType Type Acres Feet Is Wetland Rating Sheet Attached? 0 Y 0 N Did you request more info?0 Y 0 N Have Project Changes/Conditions Been Discussed With Applicant? 0 Y 0 N Is Mitigation required? 0 Y0 N Recommendation: 0 Issue (0 Issue/Cond 0 Deny Provided by Region: Latitude (ddmmss) Longitude (ddmmss) Comments: WO Certification # 3362 issued by WSRO on December 3, 2002 cc: Regional Office Central Office Page Number 1 Triage Check List Dater Project Name: C S '(? c_-e_ DWQ#: Oa- l?/15 County: From Steve Mitchell ? WaRO Deborah Sawyer MRO Joanne Steenhuis <1[ WSRO Jennifer Frye Telephone : (919) =? 3 3 ?lp The file attached is being forwarded to your for your evaluation. Please call if you need assistance. ? Stream length impacted ? Stream determination ? Wetland determination and distance to blue-line surface waters on USFW topo maps ?Minimization/avoidance issues ? Buffer Rules (Meuse, Tar-Pamlico, Catawba, Randleman) ? Pond fill ? Mitigation Ratios ? Ditching ? Are the stream and or wetland mitigation sites available and viable? ? Check drawings for accuracy ? Is the application consistent with pre-application meetings? P"'C' umulative impact concern Comments: tTo: ? ARO Mike Parker ? FRO Ken Averitte ? MRO Mike Parker CENTER Centex I lames TRIAD H a M ES ; 556 Arbor Hill [toad, Suite- 1, the neighborhood builder Kcrncrsvillc, NC 27284 Telephone (336) 992-7777 Fax (336) 996-5917 71 ?,. October 21, 2002 OCT 1 3 2002 To: To Whom it May Concern MUP ITY SECTION Re: 401/404 Water Quality PermitrAu6orization at Spencer's Trace Please accept this letter as written authorization allowing Denise Poulos of ECS Ltd. to serve as agent for Centex Homes in acquiring 401/404 Water Quality Permits related to the development of Spencer's Trace subdivision in Guildford County, NC. Since , Jeff Jackson Land Acquisition & Development Manager T'd 9999-266-966 saWOH xa2u03 d90:aT 20 12 100 r .40 Office Use Only: Form Version May 2002 USACE Action ID No. DWQ No. kil any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: X Section 404 Permit ? Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ X 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: NWP 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 Wetlands Restoration. Program (NCWRP) is proposed for mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), 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 Management Area of Environmental Concern (see the top of page 2 for further details), check here: ? IL Applicant Information 1. Owner/Applicant Information Name: Centex Homes Mailing Address: 556 Arbor Hill Road, Suite L Kernersville, NC 27284 Attn: Mr. Jeff Jackson Telephone Number: 336-992-7777 Fax Number: 336-996-5917 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: Denise M. Poulos Company Affiliation:ECS. Ltd. Mailing Address: 6909 International Drive, Suite 103 Greensboro, NC 27410 Telephone Number: 336-856-7150 Fax Number: 336-856-7160 E-mail Address: Page 1 of 8 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: Spencer's Trace 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 4. Location County: Guilford Nearest Town: Greensboro Subdivision name (include phase/lot number): Spencer's Trace Directions to site (include road numbers, landmarks, etc.):I40 to Guilford College Road. Travel south on Guilford College Road The site is on the left, approximately 1/ mile south of Hilltop Road. 5. Site coordinates, if available (UTM or Lat/Long): (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) 6. Property size (acres): 24.88 Acres 7. Nearest body of water (stream/river/sound/ocean/lake): UT to Bull Run 8. River Basin:_ Deep River (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 maiority of the site is undeveloped and wooded The surrounding properties contain residential development and churches Page 2 of 8 10. Describe the overall project in detail, including the type of equipment to be used: The site is beinE evaluated for development with a residential subdivision A road will be cons- tructed that will cross a stream located on the eastern portion of the site Bull dozers, loaders, pans, graders, track hoes and trucks will be used to construct the road 11. Explain the purpose of the proposed work: The site is being developed with a residential subdivision. A road must be constructed to access the entire site. The road will cross a tributary to Bull Run located on the eastern portion of the site. 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. There have been no other permits issued for this project. 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. We do not anticipate that additional permits will be requested 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. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Page 3 of 8 y 1. Provide a written description of the proposed impacts: Approximately 145 linear feet of stream channel will be impacted by the proposed development 106 linear feet of 60" CMP and 32 feet of rip-rap will be placed in the stream channel 2. Individually list wetland impacts below: NA Wetland Impact Site Number indicate on ma Type of Impact* Area of Impact acres Located within 100-year Floodplain** es/no Distance to Nearest Stream linear feet Type of Wetland*** - .... 11111 .L bUjp i Uly UHU tuotulLy LUIRPOrary impacts. impacts tnciuae, nut are not limited to: mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. ** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at hgR://www.fema.gov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only). List the total acreage (estimated) of all existing wetlands on the property: Total area of wetland impact proposed: NA 3. Individually list all intermittent and perennial stream impacts below: Stream Impact Site Number indicate on ma Type of Impact* Length of Impact linear feet Stream Name** Average Width of Stream Before Impact Perennial or Intermittent? leasespecify) #1 Pipe/rip-rap 1451f UT to Bull Run 4-6 feet Perennial AIIIFM L acYWatoty MW WUHLlly temporary impacts. impacts lnciuae, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, 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. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at www.usgs.gov. Several intemet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com www.mgpguest.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 145 linear feet Page 4 of 8 4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: NA Open Water Impact Site Number indicate on ma Type of Impact* Area of Impact acres (if Name p Waterbody applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc. --•?• ••.Y.... -1. ,uclulay 1c111Yv141y 1111pacts. impacts lncluae, nut are not limited to: 1711, excavation, dredging, flooding, drainage, bulkheads, etc. 5. 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): X uplands . ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Dam/embankment Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Stormwater requirement Size of watershed draining to pond: 23 acres Expected pond surface area: 0.33 acres VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. The road must cross the stream to access the eastern portion of the site In addition the City of Greensboro requires that the developer "provide stub street connections to eastern and southern property lines". Stream impacts have been minimized with the use of 2.1 side slopes and headwalls. 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. Page 5 of 8 1r USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on March 9, 2000, 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 NCWRP 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/strmp-ide.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 description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. Due to the minimal impact, mitigation should not be required Therefore, none is proposed. 2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at (919) 733-5208 to determine availability and to request written approval of mitigation prior to submittal of a PCN. For additional information regarding the application process for the NCWRP, check the NCWRP website at http://h2o.enr.state.ne.us/wM/index.htm. If use of the NCWRP is proposed, please check the appropriate box on page three and provide the following information: Amount of stream mitigation requested (linear feet): Amount of buffer mitigation requested (square feet): Amount of Riparian wetland mitigation requested (acres): Amount of Non-riparian wetland mitigation requested (acres): Amount of Coastal wetland mitigation requested (acres): Page 6 of 8 4 IX. Environmental Documentation (required by DWQ) Does the project involve an expenditure of public (federal/state) funds or the use of public (federal/state) land? Yes ? No X 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 ? If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. Will the project impact protected riparian buffers identified within 15A NCAC 213 .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes X No ? If you answered "yes", provide the following information: 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. X Zone* s uImpct are feet Multiplier MRequired itigation 1 3 2 1.5 Total - /-one i extends out su teet perpendicular from near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. Page 7 of 8 If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or.0260. Buffer mitigation is not required and not proposed The City of Greensboro has determined that a portion of the stream is intermittent A 50 foot buffer will be maintained along the intermittent stream A 100 foot buffer will be maintained along the perennial portion of the stream. XI. Stormwater (required by DWQ) Describe impervious acreage (both 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. The site will contain 29.9 % impervious surfaces when developed A stormwater pond win be constructed in accordance with the City of Greensboro's requirements XIL 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 site will utilize the municipal sanitary sewer system for sewage disposal XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No X Is this an after-the-fact permit application? Yes ? No X XIV. 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 liate ' ' (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 8 of 8 05/09/2002 15:53 C1IY Ur U'UKU WHI=M KC:nUUMI-= ?oJOripu 07 r r- f ' I- cv- Ali I may, -?"' I ,40 •••"' ?• - ' v ?- ?r ' •t'•.•, .,, J1 Ri cc to .O ? 30 .. . ¦ lot ;;u r x 10.3 Olt Friday 31 of May 2002, Greensboro >336 275 3719 Sent 05/31/02 City of Greensboro Plan Review A•,4 Plan Review Status Update Page 1 of 2 Page 1 of 2 Gene Mustin Borum Made 336.275.3719 336275.0471 This message has been sent to you to inform you that the status of a plan submitted for review by the City of Greensboro Department of Planning and/or Engineering & Inspections has changed If you do not wish to receive further Plan Review Status Updates or have received this fax in error, please contact the Reviewer listed below. ATTENTION This is only a partial update to your site plan review status - Please do not submit site plan revisions until all the site reviews have been completed and last set of comments from Planning Coordinator are received. Site Plan re-submittals must be complete sets of drawings. No Site Plan re-submittals can be accepted for review until all revisions to every plan have been made. This does not apply to building plans. 2002-0870 Spencers Trace Subdivision Spencers Trace Subdivision Not Approved 5/30/02 None Provide divided entrance to align with Jamesford Drive. Provide left turn lane on Guilford College Road with 150' min storage per attached ncdot standards. Dedicate right-of-way along Guilford College Road at 50' from centerline. Stop proposed curb and gutter at right-of-way line for Guilford College Road Provide 5' sidewalks, 3' from curb within the subdivision as shown. Provide stub street connections to eastern and southern property lines as shown. equrred - Submit NCDOT d/w application and 6 copies of the site plan to GDOT for d/w approval STATUS IS Incomplete 4337246 bill' e?a?ci.greensboro.nc.us BORUM, WADE AND ASSOCIATES, P.A. ENGINEERS - PLANNERS - SURVEYORS 405-0 PARKWAY GREENSBORO. N. C. 27401 MAILING ADDRESS: TELEPHONE 336-275-0471 P. O. BOX 14213 336-272-3115 GREENSBORO. N. C. 27415-4215 FAX 336-275-3719 October 18, 2002 Denise Poulas ECS LTD 6909 International Drive Greensboro, NC 27409 Phone: (336) 856-7150 Regarding: Centex Homes - Spencer's Trace Subdivision Guilford College Road Greensboro, NC Dear Denise: The purpose of this letter is to inform your office that the sanitary sewer outfall locations shown on the development plans are within the Zone 2 creek buffer area in order to prevent excessive depths along the outfall line. If you have any questions or need additional information, please do not hesitate to call. * Very ours, Homerade, P. P.L CSQ"-- `? c . a .L! / ? ? - l ? ? .. ' ? 790 i w ? • . `j ? ? n •? ?\` r,ll.-: ?? ? } 11 ??1\ 'BM ???''.l 1 ?. _-\?-? •?'1 ?,.;,\1LC1\-?, ?? -.l ? ???Ir, illJ 51??1+,.111 / t ?? .?`, ? _?? \?? 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DATE ACCOUNT DESCRIPTIO AMOUNT APOrhd- N J 10W9 5- OCT 2 3 2002 WAR= SECTION sN ATFRQG r CERTIFIED MAIL: 70012510 00014778 5284 Return Receipt Requested Centex Homes ATTN: Mr. Jeff Jackson 556 Arbor Hill Road Suite L Kernersville, NC 27284 Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E Director Division of Water Quality December 3, 2002 SUBJECT: APPROVAL of 401 Water Quality Certification with Additional Condition Spencer's Trace DWQ Project # 02 1715 Guilford County Dear Mr. Jackson: You have our approval, in accordance with the attached conditions (WQC # 3362), to discharge fill into 145 linear feet of an Unnamed Tributary to Bull Run, Class WS -1V waters, Cape Fear River Basin, Guilford County, for the purpose of constructing the Spencer's Trace residential development. The activity must be conducted as indicated in your application received by the Division of Water Quality on October 23, 2002 and in the additional information received on November 20, 2002 We have determined that General Water Quality Certification Number 3362 covers this activity. For this approval to be valid, you must follow the conditions listed in the attached Certification and the Additional Condition listed below. Please pay special attention to Condition Numbers 9, 15 and 16. This Certification allows you to use Nationwide Permit Number 39 when issued by the US Army Corps of Engineers Sheet flow must be maintained to the maximum extent practical through dispersing concentrated flow and re-establishment of vegetation to maintain the effectiveness of the riparian area Periodic corrective action to restore diffuse flow shall be taken if necessary to impede the formation of erosion gullies. Please keep in mind that there may be additional Federal, State and Local regulations applicable to your project, such as the Sedimentation and Pollution Control Act, Non -Discharge and Water Supply Watershed Regulations, whereby you may be required to obtain permits and/or approvals prior to beginning your project. In addition, this approval will expire when the accompanying 404 Pernut expires unless otherwise specified in the General Certification. This approval is only valid for the purposes and designs that you described in your application and additional information. If you change your project, you must notify the Division N 'C Division of Water Quality/Water Quality Section 585 Waughtown Street Winston-Salem, NC 27107 (336) 771-4600 OENR Customer Service 1 800 623-7748 am 02 1715 Page 2 in writing and you may be required to submit a new application for a new Certification. If the property is sold, the new owner must be given a copy of the Certification and approval letter and is thereby responsible for complying with all conditions. If total wetland fill for this project (now or in the future) exceeds one acre, compensatory mitigation may be required as described in 15A NCAC 2H 0506(h). If you do not accept any of the conditions of this Certification, you may ask for an adjudicatory hearing. You must act within 60 days from the date of receipt of this letter. To request a hearing, send a written petition that conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. This Certification and its conditions are final and binding unless you request a hearing. This letter completes the review of DWQ Project #02 11715 by the Division of Water Quality under Section 401 of the Clean Water Act. If you wish to review any of the Water Quality Regulations mentioned here, you can download a copy through the 401/Wetlands Unit web site at http //h20 enr state nc us/ncwetiands. If you have any questions, please contact Mrs. Jennifer Frye at 336-771-4600, ext. 275 or Mrs. Cyndi Karoly at 919-733-9721. Sincerely, 7 F64,z Alan W. Klimek, P E. Attachments- GC # 3362 (3/18/02), COC cc: Denise Poulos, ECS, Ltd , 6909 International Dr , Suite 103, Greensboro, NC 27409 Gene Mustin, Borum, Wade and Associates, P A, PO Box 14215, Greensboro, NC 27415-4215 Todd Tugwell, Raleigh Regulatory Field Office, USACE Wetlands/401 Unit Central Office Central Files SWRO? BORUM, WADE AND ASSOCIATES, P.A. ENGINEERS — PLANNERS — SURVEYORS 405-0 PARKWAY GREENSBORO, N. C. 27401 MAILING ADDRESS: TELEPHONE 336-275-0471 P O BOX 14215 336-272-3115 GREENSBORO. N C. 27415.4215 FAX 336'275-3719 November 20, 2002 Jennifer Frye North Carolina Department of Environment and Natural Resources 585 Waughtown Street Winston-Salem, NC 27107 Phone (336) 771-4600 Regarding Centex Homes Spencer's Trace Subdivision Greensboro, NC Jennifer AR,, N.C. Dept. of EHNR N 0 V 2 0 2002 Vis. calem Reg ionat off Per our phone conversation on Monday, November 18, 2002, we are responding to your comments regarding the 401 creek crossing permit for the above referenced project In an effort to maintain sheet flow through the riparian buffer areas along the creek and to reduce the total built -upon area for the site to less than 29 5%, we offer the following 1 The discharge point of storm sewer pipe no. 29 has been moved 30' further away from the 50' Zone 2 buffer line 2 The discharge point of storm sewer pipe no 30A no longer exits into the riparian buffer zone, but rather is discharges into the on-site storm sewer system that ultimately routes through the permanent wet detention pond. 3 The discharge barrel of the permanent wet detention pond exits into a rip rap dissipater and level spreader, all of which are constructed outside of the 50' Zone 2 riparian buffer The North Carolina Erosion and Sedimentation Control Manual does not offer a good solution for maintaining sheet flow for the designed barrel outlet Therefore, I designed the outlet in accordance the Manual for Erosion and Sediment Control in Georgia (Note The City of Greensboro issued an approval to the Watershed Development Plan with only a rip rap pad being constructed outside of the 50' Zone 2 buffer area) 4 The built -upon area shown on the plan is 29 43% Please be aware that the City of Greensboro in trying to maintain sheet flow through the riparian buffer zones, has required that my riprap pads be designed outside of the 50' zone 2 buffer area. The Watershed Development Plan for this project has already been approved by the City of Greensboro and we are presently working on obtaining an approved Erosion Control Plan and Grading Permit for the site In an effort to maintain my client's time schedule for construction, I would appreciate a response from your office at your earliest convenience We thank you in advance for working with us on these matters If you have any questions, or need additional information, please do not hesitate to call. Very Truly Yours, Gene Mustin, P E cc Denise Poulos attachments ENGINEERING CONSULTING SERVICES, LTD. Geotechnical • Construction Materials • Environmental Mr. John Dorney 021715 Division of Water Quality 401/Wetlands Unit 1650 Mail Service Center Raleigh, North Carolina, 27699-1650 Subject: Pre -Construction Notification Application Request for 401 Water Quality Certification Spencer's Trace Greensboro, Guilford County, North Carolina ECS Project G -6442A October 21, 2002 Dear Mr. Dorney: j^ Please find seven copies of the Pre -Construction Notification Application for the above referenced project. The site is approximately 24.88 acres in area and is located on Guilford College Road in Greensboro (Figure 1). The site is being evaluated for residential development. A tributary to Bull Run is located on the eastern portion of the site. As shown on the attached exhibits prepared by Borum, Wade and Associates, P.A. (Overall Subdivision Plan, Stream Impact Plan, Stream Profile.), approximately 145 linear feet of stream channel will be impacted by the construction of a road across the site. The road must cross the stream in order to access the eastem portion of the site. In addition, the City of Greensboro is requiring the developer to "provide stub street connections to eastern and southern property Imes". Concrete headwalls and 2:1 slopes will be used to minimize the impact to the stream channel. In addition, the pipe will be placed approximately four inches below the bottom of the stream channel to facilitate movement of aquatic organisms. A buffer will be maintained along, the stream. The buffer will be 50 feet wide along the intermittent portion of the stream and 100 feet wide along the perennial portion of the stream. The intermittent/perennial point in the stream was determined by Mr. Ron Small with the City of Greensboro Stormwater Management Division. When developed, the site will have 29% impervious surfaces. Therefore, a stormwater management plan acceptable to the City of Greensboro will be implemented as shown on the Overall Subdivision Plan and Stream Impact Plan. A stormwater management pond will be constructed in the upland area of the site. A level spreader will be installed at the outlet of the pond outside the 50 foot stream buffer. There will be no temporary sediment and erosion control measures placed within the Zone 1 stream buffer. The proposed development is in compliance with the City of Greensboro's Development Ordinances as it pertains to the Randleman Watershed Protection Rules. The culvert design and energy dissipater meet the approval of the City of Greensboro's Sediment Erosion Control Program. The development plan and culvert design must be approved by the City of Greensboro. A sanitary sewer outfall will be installed at the site. The outfall will be installed on the uplands in the Zone 2 stream buffer. Moving the outfall outside of the Zone 2 buffer would result in its being placed at an excessive depth. This would cause difficulty in maintaining and repairing the outfall. On behalf of Centex Homes, I am requesting that a 401 Water Quality Certification be issued to authorize this minor impact. 6909 International Drive, Suite 103 • Greensboro, NC 27409 • (336) 856-7150 • Fax (336) 856-7160 Offices Aberdeen, MD • Atlanta, GA • Austin, TX • Baltimore, MD • Chantilly, VA • Charlotte, NC • Chicago, IL • Cornelia, GA • Dallas, TX Danville, VA • Frederick, MD • Fredericksburg, VA • Greensboro, NC • Greenville, SC • Norfolk, VA • Raleigh, NC • Richmond, VA Roanoke, VA • San Antonio, TX • Williamsburg, VA • Wilmington, NC • Winchester, VA Section 401 Permitting Spencer's Trace ECS Project G -6442A Please feel free to contact me at (336) 856-7150 if you have any questions concerning this request or if additional information is required. Thank you in advance for your timely consideration of this matter. Sincerely, ENGINEERING CONSULTING SERVICES, LTD. QDeniseLSS Principal Scientist Attachments: Pre -Construction Notification Application $200 Water Quality Certification Fee 2