The URL can be used to link to this page

Home My WebLink About20080902 Ver 2_Local Government Buffer Approval_20221209Baker, Caroline D From: Goss, Stephanie Sent: Friday, December 9, 2022 2:31 PM To: Thomas, Zachary T Subject: FW: [External] No Practical Alternative Certificate - Laurel Ridge Driveway Crossings FYI Stephanie Z. Goss Environmental Program Consultant Division of Water Resources Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Office: 919-791-4256 DE NUbt I H CAHOLINA Department of Environmental Quality Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Drew Blake <drew.blake@chathamcountync.gov> Sent: Friday, December 9, 2022 2:20 PM To: 'Hadley Swain' (hadley@swainco.com) <hadley@swainco.com> Cc: Deborah Shirley <dshirley@sandec.com>; Wojoski, Paul A <Paul.Wojoski@ncdenr.gov>; Goss, Stephanie <stephanie.goss@ncdenr.gov>; raleighncreg@usace.army.mil; Rachael Thorn <rachael.thorn@chathamcountync.gov>; Justin Hasenfus <justin.hasenfus@chathamcountync.gov>; Taylor Burton <taylor.burton@chathamcountync.gov>; Jason Sullivan <jason.sullivan@chathamcountync.gov>; Kimberly Tyson <kimberly.tyson@chathamcountync.gov> Subject: [External] No Practical Alternative Certificate - Laurel Ridge Driveway Crossings CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Please see attached Authorization Certificate for the proposed driveway crossing in the Laurel Ridge subdivision. Please note the conditions of the certificate and that as -built drawings must be submitted within one (1) year of todays date. Please contact me if you have any questions. Drew Blake Assistant Director Chatham County Government Watershed Protection Department drew. blake(@chathamcountvnc.2ov C: 919-548-6715 Website: chathamcountync.gov 80 East Street I P.O. Box 548 Pittsboro, NC 27312 In keeping with the NC Public Records Law, e-mails, including attachments, may be released to others upon request for inspection and copy. WATERSHED PROTECTION DEPARTMENT CHATHAM COUNTY NORTH CAROLINA P.O. Box 548 Pittsboro, NC 27312 PHONE: (919) 545-8394 December 9, 2022 Ms. Hadley Kirkland Laurel Ridge Development, Inc. PO Box 5669 Cary, NC 27512 • Website: www.chathamnc.org AUTHORIZATION of Jordan Lake Water Supply Watershed Riparian Buffer Protection Rules (Watershed Protection Ordinance Section 304(J) 4 and 15A NCAC 2B .0267) Authorization Certificate Project Name: Laurel Ridge Driveway Crossings Dear Ms. Kirkland, You have our authorization, in accordance with the Jordan Lake Water Supply Watershed Riparian Buffer Protection Rules and any conditions listed below to 6,805 ft2 of the protected riparian buffers associated with the installation of two (2) private driveway crossings. The impacts will occur within two (2) different areas of the protected riparian buffers associated with an unnamed intermittent tributary of Dry Creek, within the Laurel Ridge Development, as described within your application submitted July 27, 2022, and on the Buffer Impact Maps, completed by CE Group. Review and approval of the buffer restoration was required under 15A NCAC 02B .0267(9) — Table of Uses. Per your application this review, and authorization is only valid for those impacts stated above. In addition, you should obtain or otherwise comply with any other required federal, state or local permits before you proceed with your project including (but not limited to) Erosion and Sediment Control and Non -discharge regulations. This authorization certification is for the purpose and design that you described in your application. If you change your project, you must notify us, and you may be required to send us a new application. If the property is sold, the new owner must be given a copy of this authorization letter and is thereby responsible for complying with all conditions. This authorization requires you to follow the conditions listed below. The Additional Conditions of the Certification are: 1. Impacts Approved The following impacts are hereby approved as long as all of the other specific and general conditions of this Certification are met. No other impacts are approved including incidental impacts: VEarinted on 30% Post -Consumer Recycled Paper A. Permanent Impacts Permanent Impacts (Driveway Crossing # 1) Amount Approved (Units) Plan Location or Reference Intermittent Stream Buffers (Zone 1) — Stream SF 2,647 (square ft.) Project Impacts Inventory Summary — Impact B1, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SF 1,380 (square ft.) Project Impacts Inventory Summary — Impact B2, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SF 129 (square ft.) Project Impacts Inventory Summary — Impact B3, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SF 89 (square ft.) Project Impacts Inventory Summary — Impact B4, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SF 135 (square ft.) Project Impacts Inventory Summary — Impact B5, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SF 84 (square ft.) Project Impacts Inventory Summary — Impact B6, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SF 128 (square ft.) Project Impacts Inventory Summary — Impact B7, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SF 88 (square ft.) Project Impacts Inventory Summary — Impact B8, Buffer Impact Map Sheet 1 (Driveway Crossing #2) Intermittent Stream Buffers (Zone 1) — Stream SC 2,024 (square ft.) Project Impacts Inventory Summary — Impact B10, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SC 754 (square ft.) Project Impacts Inventory Summary — Impact B11, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SC 120 (square ft.) Project Impacts Inventory Summary — Impact B12, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SC 81 (square ft.) Project Impacts Inventory Summary — Impact B13, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SC 125 (square ft.) Project Impacts Inventory Summary — Impact B14, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SC 84 (square ft.) Project Impacts Inventory Summary — Impact B15, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SC 120 (square ft.) Project Impacts Inventory Summary — Impact B16, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SC 82 (square ft.) Project Impacts Inventory Summary — Impact B17, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SC 134 (square ft.) Project Impacts Inventory Summary — Impact B18, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SC 84 (square ft.) Project Impacts Inventory Summary — Impact B19, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 1) — Stream SC 127 (square ft.) Project Impacts Inventory Summary — Impact B20, Buffer Impact Map Sheet 1 Intermittent Stream Buffers (Zone 2) — Stream SC 83 (square ft.) Project Impacts Inventory Summary — Impact B21, Buffer Impact Map Sheet 1 Temporary Impacts No temporary impacts are proposed or approved for this project 2. Temporary Impacts Such impacts are typically associated with construction corridors, temporary access roads, and the installation and operation of temporary sediment and erosion control measures and devices. Approved temporary impacts must remain temporary in nature, minimize impacts to the riparian buffer, meet or exceed required Best Management Practices (BMP), perform, and be maintained so that no violations of county riparian buffer or state water quality standards, statutes, or rules occur, and must be returned to the uses that were existing at the time of authorization. No temporary impacts are proposed or approved for this project. 3. No Waste, Spoil, Solids, or Fill of Any Kind No waste, spoil, solids, or fill of any kind shall occur in riparian areas beyond the footprint of the impacts depicted in the Pre -Construction Notification. All construction activities, including the design, installation, operation, and maintenance of sediment and erosion control Best Management Practices, shall be performed so that no violations of county riparian buffer or state water quality standards, statutes, or rules occur. 4. Diffuse Flow An additional condition is that all stormwater shall be directed as diffuse flow at non -erosive velocities through the protected stream buffers and will not re -concentrate before discharging into the stream as identified within Section 304(J)2 of the Watershed Protection Ordinance. 5. Protective Fencing The outside buffer boundary and along the construction corridor within these boundaries approved under this authorization shall be clearly marked with orange warning fencing (or similar high visibility material) for the areas that have been approved to infringe within the buffer, stream channel or water prior to any land disturbing activities to ensure compliance with the Watershed Protection Ordinance. 6. Certificate of Completion All activities as proposed, and any subsequent modifications, approved within this authorization must be completed within one year of the issuance of the authorization. The applicant is required to certify that the completed project is in accordance with this authorization and shall submit actual `as -built' plans. If proof of completion is not presented within this timeframe, then the person shall be in violation of both the State's and Chatham County's riparian buffer protection program. Any disputes over determinations regarding this Authorization of Approvable Impacts (associated with the approved buffer impacts) shall be referred in writing to the Director of the Division of Water Resources, c/o the 401 & Buffer Permitting Unit. The Director's decision is subject to review as provided in G.S. 150B Articles 3 and 4. The mailing address for the 401 & Buffer Permitting Unit is: Mr. Paul Wojoski 1650 Mail Service Center Raleigh, NC 27699-1650 Telephone: 919-807-6300, Facsimile: 919-807-6494 This Authorization shall expire five (5) years from the date of this letter. This letter completes the review of the "No Practical Alternatives" determination under Section 304(1) and 15A NCAC 2B .0267. If you have any questions or would like a copy of the buffer rules, please call Drew Blake at (919) 545-8394. This letter does not authorize any impacts to either Waters of the United States or Waters of the State. Please contact the US Army Corps of Engineers (USACE) or NC Division of Water Quality (DWQ) if any impacts are proposed to either of these waters. Sincerely, Rachael Thorn Chatham County Watershed Administrator cc: Paul Wojoski, NC DWR 401/Buffer Coordinator Stephanie Goss, NC DWR Raleigh Regional Office USACE Raleigh Regulatory Field Office Drew Blake, Chatham County Chatham County Watershed Protection, Assistant Director Justin Hasenfus, Chatham County, Senior Watershed Specialist Jason Sullivan, Chatham County Planning Director Kimberly Tyson, Chatham County Subdivision Administrator Enclosures: Chatham County Riparian Buffer Application Riparian Buffer Authorization Review Letter Buffer Impacts Summary Laurel Ridge Phase 2B — Driveway Crossing Design Plan Chatham County Request for More Information Response_09-02-2022 Chatham County Request for More Information Response_11-16-2022 7/28/22, 1:12 PM County of Chatham, NC WP-22-466 Riparian Buffer (Authorization) No Practical Alternatives Status: Active OpenGov Date Created: Jul 27, 2022 07/28/2022 Applicant Location Camden Brunick 406 Blufftonwood Dr cbrunick@sandec.com Pittsboro, North Carolina 27312 8412 Falls of Neuse Road, Suite 104 Owner: Raleigh, North Carolina 27615 9192196162 LAUREL RIDGE DEVELOPMENT INC (Attn: Hadley Kirkland) P.O. Box 5689 Cary, NC 27312 Project Information Are you the Property Owner or their Agent? Agent Is the project within the Jordan Lake Watershed Yes Is a change in lot configuration proposed? No Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? If yes, attach the acceptance letter from mitigation bank or in -lieu fee program. No Does the project require Corps of Engineers (USACE) approval? Yes Does the project require NC Division of Water Quality (NC DWQ) approval? Yes Name of Project Laurel Ridge Subdivision Name Deed Book & Page Number DB: 2195 DP: 0759 & DB: 1367 DP: 1144 Nearest Road Insection Rock Rest Road and Blufftonwood Drive Owner Information Name Laurel Ridge Development Inc https://chathamcountync.viewpointcloud.io/#/explore/records/27469/printable?act=true&app=true&att=true&emp=true&int=true&loc=true&sec=101122... 1/5 7/28/22, 1:12 PM Responsible Party (if different from names on deed) Hadley Kirkland OpenGov Mailing Address City, State, Zip Code P.O. Box 5689 Cary Phone Number (919)417-2990 Email hadley@swainco.com Are you an Agent or Consultant applying on behalf of the landowner? Yes Applicants Information Primary Phone (919)846-5900 Name Camden Brunick Company Name Soil & Environmental Consultants, PA Email Mailing Address cbrunick@sandec.com 8412 Falls of Neuse Road, Suite 104 City, State, Zip Code Raleigh, NC, 27615 Coordinates (Lat/Long) 35.810607/-79.211797 Nearest Surface Waters Dry Creek Project Information and Prior Project History Parcel Number (s) 9734-00-79-7836, 9735-00-70-0002, 9734-00- 69- 9618, 9734-00-69-7480, 9735-00-70-6110, 9735-00- 80-4073, 9734-00-89-6601, 9734-00- 79-8632, 9734- 00-89-2232, 9734-00-88-1652 & 9734-00-88-6970 Property Size (acres) +/- 70 acres Project Description Describe the existing conditions on the site and the general land uses in the vicinity of the project at the time of application Existing conditions onsite consists primarily of undisturbed forested land. There is an existing 50' utility easement located near the northwestern portion of the property. Blufftonwood Drive bisects the parcels north to south. Specifically, there is two (2) intermittent streams (SB & SC) and one (1) perennial stream (SA) located on the property. General land use in the vicinity of the project consists of forested land with a few rural single-family homes. Dry Creek is located south of the project. Rock Rest Road bounds the property to the north and Old Graham Road bounds the property to the west. Explain the purpose of the proposed project The purpose of this project is to construct a single-family residential development and its necessary infrastructure. Describe the overall project in detail, including the type of equipment to be used The overall project consists of the construction of a single-family residential development including but not limited to roadway infrastructure and residential lots. Specifically, there are two (2) road/driveway crossings that impact streams. Equipment typically used for construction and earthwork such as backhoes, bulldozers, excavators, graders, pavers etc. will be utilized for this project. Total estimated acreage of all wetlands on the property 0 acres https://chathamcou ntync.viewpoi ntcloud. io/#/explore/records/27469/printable?act=true&app=true&att=true&emp=true&i nt=true&loc=true&sec=101122... 2/5 7/28/22, 1:12 PM OpenGov Total estimated acreage of all FEMA floodplains on the property (SFHA) .5 acres Total linear feet of perennial streams on the property Approximately 250 LF Total linear feet of intermittent streams on the property Approximately 1,750 LF Total linear feet of ephemeral streams on the property 0 LF Jurisdictional Determinations Has the USACE completed a jurisdictional determination for the property Yes Date USACE Determination was completed 10/23/2019 USACE Action ID# SAW-2008-01696 Has the NC DEQ-DWR completed a jurisdictional determination for the property No Who delineated the jurisdictional areas (name) Steven Ball Agency/Consulting Company/Other Company Name Consultant Soil & Environmental Consultants, PA Staff Name Steven Ball Project History Have permits or certifications been requested or obtained for this projects (including all prior phases) in the past Yes Explain previous permits and certifications in detail USACE: NWP 12 & NWP 29 issued by Monte Matthews on July 22, 2008 (SAW-2008-01696). NCDWR: 401 approval issued by Coleen Sullins on July 14, 2008 (DWQ Project #08-0902). Future Project Plans Project Impacts Inventory Projects Inventory Map Upload (pdf) Chatham County Buffer Authorization Application Page 3.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:13 am Is this a phased project? No Please upload a copy of the Project Impacts Inventory found on page 3 of the paper application. Avoidance and Minimization Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project https://chathamcou ntync.viewpoi ntcloud. io/#/explore/records/27469/printable?act=true&app=true&att=true&emp=true&i nt=true&loc=true&sec=101122... 3/5 7/28/22, 1:12 PM OpenGov S&EC completed a wetland delineation and buffer evaluation for the entire property so that natural resources could be identified, and impact minimized to the maximum extent practicable. Impact 1 is proposed permanent, permanent -no permanent, and temporary stream impacts for a driveway crossing. The crossing will occur at a near perpendicular angle and is necessary to access lots 34R and 35R shown on the plan. Headwalls will be utilized as well as a riprap dissipater that will reduce flow velocities and minimize stream degradation. A temporary diversion pump, coffer dams, dewatering pump, and discharge hose will be utilized during construction to divert stream flows and minimize the release of sediments during construction activities. Impact 2 is proposed permanent, permanent - no permanent, and temporary stream impacts for a driveway crossing. The crossing will occur at a near perpendicular angle and is necessary to access lot 35R as well as to the pasture for their horses, chickens and goats. Headwalls will be utilized as well as a riprap dissipater that will reduce flow velocities and minimize stream degradation. A temporary diversion pump, coffer dams, dewatering pump, and discharge hose will be utilized during construction to divert stream flows and minimize the release of sediments during construction activities. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Silt fencing will be utilized as well as temporary dewatering measures to be used during the dry. Please upload last sheet of paper Include Buffer Mitigation, Diffuse Flow Plan, Violations, and Cumulative Impacts Section application. Statement of Understanding I have read and understand the regulations of the Watershed Protection Ordinance, Section 304, and I agree to adhere to these associated policies and guidelines. Signature of Applicant Camden M. Brunick 07/12/2022 Attachments Final Sheet of Paper Application (Pdf) Chatham County Buffer Authorization Application Page 4.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:14 am Name Camden Brunick New Field 07/12/2022 CpdflParcel 86169 - Jordan Lake Buffer Confirmation Report.pdf )Uploaded by Camden Brunick on Jul 27, 2022 at 9:15 am pdf Combined Maps 5-11-22.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:19 am (Pdf)Combined Maps 5-11-22.pdf JUploaded by Camden Brunick on Jul 27, 2022 at 9:19 am CPd�SAW-2008-01696 signed NWP verification.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:19 am CPdf)08-0902 v2 Laurel Ridge Phase 2B_IP29_Chatham.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:19 am Project Impact Inventory Table.xlsx Uploaded by Camden Brunick on Jul 27, 2022 at 9:29 am rpdfl https://chathamcou ntync.viewpoi ntcloud. io/#/explore/records/27469/printable?act=true&app=true&att=true&emp=true&i nt=true&loc=true&sec=101122... 4/5 7/28/22, 1:12 PM Alternate Design 1.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:24 am Cpdf)Land Disturbing Permit.pdf JUploaded by Camden Brunick on Jul 27, 2022 at 9:25 am Alternative Design 2.pdf Uploaded by Camden Brunick on Jul 27, 2022 at 9:34 am History Date May 27, 2022 at 1:03 pm May 27, 2022 at 1:05 pm May 27, 2022 at 1:05 pm Jun 7, 2022 at 11:10 am Jun 7, 2022 at 11:10 am Jun 7, 2022 at 11:10 am Jun 7, 2022 at 11:10 am Jun 7, 2022 at 11:10 am Jul 12, 2022 at 9:07 am Jul 27, 2022 at 9:24 am Jul 27, 2022 at 9:25 am Jul 27, 2022 at 9:34 am Jul 27, 2022 at 9:43 am Jul 27, 2022 at 9:43 am Jul 28, 2022 at 1:10 pm Timeline Label Ne Intake Approval OpenGov Activity Camden Brunick started a draft of Record WP-22-466 Camden Brunick altered Record WP-22-466, changed ownerEmail from "" to "hadley@swai nco.com" Camden Brunick altered Record WP-22-466, changed ownerPhoneNo from "" to "(919)417- 2990" Camden Brunick altered Record WP-22-466, changed ownerCity from "RALEIGH " to "Cary" Camden Brunick altered Record WP-22-466, changed ownerName from "LAUREL RIDGE DEVELOPMENT INC " to "LAUREL RIDGE DEVELOPMENT INC (Attn: Hadley Kirkland)" Camden Brunick altered Record WP-22-466, changed ownerPostalCode from "27609 " to "27312" Camden Brunick altered Record WP-22-466, changed ownerStreetName from "1000 ST ALBANS DR STE 400 " to "P.O. Box 5689" Camden Brunick altered Record WP-22-466, changed ownerStreetNo from "" to "" Camden Brunick added Does the project require NC Division of Water Quality (NC DWQ) approval? to Record WP-22-466 Camden Brunick added attachment Alternate Design 1.pdf to Record WP-22-466 Camden Brunick added attachment Land Disturbing Permit.pdf to Record WP-22-466 Camden Brunick added attachment Alternative Design 2.pdf to Record WP-22-466 Camden Brunick submitted Record WP-22-466 approval step Intake Approval was assigned to Paula Phillips on Record WP-22-466 Drew Blake assigned approval step Intake Approval to Drew Blake on Record WP-22-466 No Practical Alternatives Statement Issued Status Activated Active Jul 27, 2022 at 9:43 am Drew Blake Inactive Completed Assignee Due Date https://chathamcountync.viewpointcloud.io/#/explore/records/27469/printable?act=true&app=true&att=true&emp=true&int=true&loc=true&sec=101122... 5/5 CHATHAM COUNTY NORTH CAROLINA WATERSHED PROTECTION DEPARTMENT P.O. Box 548 Pittsboro, NC 27312 PHONE: (919) 545-8394 RIPARIAN BUFFER AUTHORIZATION REVIEW LETTER August 5, 2022 Camden Brunick Soil & Environmental Consultants, PA 8412 Falls of Neuse Road, Suite 104 Raleigh, NC 27615 Project Name: Laurel Ridge Phase 2B Driveway Crossings (Lots 34R/35R & 36R) The Chatham County Senior Watershed Specialist reviewed your Riparian Buffer Authorization Application dated July 27, 2022, and made the following comments: Riparian Buffer Authorization Application 1. Explain the purpose of the proposed prqject a. Why does this project need to impact a protected riparian buffer? 2. Buffer Impact Summary i. Please see attached for comments on the buffer impact summary 3. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. a. What will be done during construction to minimize impacts to riparian buffers? Construction measures may include pre -construction conferences with contractors to ensure expectations and concerns are understood, establishing a clear protocol for addressing problems quickly, locating equipment maintenance and washing facilities away from riparian buffers, hand -clearing of vegetation instead of more disruptive equipment clearing in sensitive areas, clearly marking protected areas with protective fencing or other means prior to construction, etc. i. Please revise and respond to answer the requirements above. Buffer Impact Map 4. Buffer Impact Table a. Update all "Impact Tables" on the plan. b. Please break the tables on each sheet to look like the Impacts Summary. 5. Sheet 3 a. Provide facewidth of impact at its widest point as a dimension line and in the table b. Provide maintenance corridor widths for non -electric underground utilities (include fiber, telephone and all other utilities) c. Provide linear width impacts for all underground electric utilities 6. Sheet 4 a. Include all utilities (telephone, electric, fiber) 7. Sheet 5 a. Provide facewidth of impact at its widest point as a dimension line and in the table b. Provide maintenance corridor widths for non -electric underground utilities (include fiber, telephone and all other utilities) c. Provide linear width impacts for all underground electric utilities Page 1 of 2 Culvert Installation Sequence Plan Comments 8. Please provide this information Soil Erosion & Sedimentation Control Plan Comments 9. Please provide full construction drawing for erosion control 10. Please provide a cut/fill plan for the site with specific references to the source of fill material for the riparian buffer impacts This completes the review of the Riparian Buffer Authorization Application. Additional comments may follow based on the response to the above comments. If you have any questions, please do not hesitate to contact me directly. Sincerely, rtJ4. ) Drew Blake Assistant Director, CESSWI Chatham County Watershed Protection Department CC: Hadley Kirkland, Laurel Ridge Development, Inc. Deborah Shirley, Project Manager — Regulatory Specialist, Soil & Environmental Consultants, PA Jason Sullivan, Director, Chatham County Planning Department Justin Hasenfus, Senior Watershed Specialist, Chatham County Watershed Protection Dept. Rachael Thorn, Director, Chatham County Watershed Protection Department Page 2 of 2 CHATHAM COUNTY NORTH CAROLINA WATERSHED PROTECTION DEPARTMENT P.O. Box 548 Pittsboro, NC 27312 PHONE: (919) 545-8394 RIPARIAN BUFFER AUTHORIZATION REVIEW LETTER September 7, 2022 Deborah Shirley Soil & Environmental Consultants, PA 8412 Falls of Neuse Road, Suite 104 Raleigh, NC 27615 Project Name: Laurel Ridge Phase 2B Driveway Crossings (Lots 34R/35R & 36R) The Chatham County Senior Watershed Specialist reviewed your Riparian Buffer Authorization Application dated July 27, 2022, and made the following comments: Riparian Buffer Authorization Application 1. Explain the purpose of the proposed prqject a. Why does this project need to impact a protected riparian buffer? This comment was satisfactorily met through the submittal on September 2. 2. Buffer Impact Summary i. Please see attached for comments on the buffer impact summary This comment was not adequately addressed. Please see attached excel file for an example. 3. Specifically describe measures taken to avoid or minimise the proposed impacts through construction techniques. a. What will be done during construction to minimize impacts to riparian buffers? Construction measures may include pre -construction conferences with contractors to ensure expectations and concerns are understood, establishing a clear protocol for addressing problems quickly, locating equipment maintenance and washing facilities away from riparian buffers, hand -clearing of vegetation instead of more disruptive equipment clearing in sensitive areas, clearly marking protected areas with protective fencing or other means prior to construction, etc. i. Please revise and respond to answer the requirements above. This comment was satisfactorily met through the submittal on September 2. Buffer Impact Map 4. Buffer Impact Table a. Update all "Impact Tables" on the plan. b. Please break the tables on each sheet to look like the Impacts Summary. This comment was not adequately addressed. Please see attached excel file for an example. 5. Sheet 3 a. Provide facewidth of impact at its widest point as a dimension line and in the table This comment was satisfactorily met through the submittal on September 2. b. Provide maintenance corridor widths for non -electric underground utilities (include fiber, telephone and all other utilities) Page 1 of 3 Response Provided: Per the project engineer, essentially this entire driveway (28' from headwall to headwall) is a maintenance corridor. We have shown the utilities in the 4' grass strip between the gravel drive and headwalls. See Response in item C below. c. Provide linear width impacts for all underground electric utilities Response Provided: Per the project engineer, the utilities will not be an additional impact. Utilities are not described beneath the Driveway Crossing section in the Table of Uses. They are broken out into their own individual impacts within the Table of Uses and shall be submitted for review in the same manner. Utilities have their own individual maintenance corridors that must be shown on the plan to determine if those impacts would meet the definitions of exempt, allowable, or allowable with mitigation. While they are included in the total impact for the stream crossing their individual impacts must be broken out to meet the requirements of the Table of Uses. Not showing fiber, telephone, cable, or electric service routes will result in the home builder being required to permit these impacts prior to construction. 6. Sheet 4 a. Include all utilities (telephone, electric, fiber) See comments above 7. Sheet 5 a. Provide facewidth of impact at its widest point as a dimension line and in the table b. Provide maintenance corridor widths for non -electric underground utilities (include fiber, telephone and all other utilities) c. Provide linear width impacts for all underground electric utilities See comments above Culvert Installation Sequence Plan Comments 8. Please provide this information The detail culvert installation sequence has not been provided. A minimum 4 step detail should be provided. • Step 1 Includes (at a minimum) o Clearing and grading of initial side of riparian buffer to the stream. o Installation of erosion control measures and in stream measures (coffer dams, pump around) • Step 2 Includes (at a minimum) o Excavation pit for culvert installation at appropriate width and side slope elevation to adequately install and backfill the culvert o Dewatering pump detail should be shown. o Cross sectional views showing the excavation depth and width • Step 3 Includes (at a minimum) o All backfill activities of the culvert o Cross section views showing the backfill and pipe bedding material used and depth of bedding o Installation of all utilities (cross section showing bury depths and coverage details) • Step 4 Includes (at minimum) o Final Conditions o Removal of all erosion control measures o Final stabilization details Soil Erosion & Sedimentation Control Plan Comments 9. Please provide full construction drawing for erosion control Page 2 of 3 The erosion control plans provided show no detailed grading or site improvement information depicting what will occur within the riparian buffer. Please provide a full erosion control plan that shows proposed grading and all land disturbing activity associated with the project. 10. Please provide a cut/fill plan for the site with specific references to the source of fill material for the riparian buffer impacts Response Provided: Per the project engineer, the following has been added to sheets 3 & 5: "The purpose of this plan is to install permanent stream crossing; no mass site grading is proposed. All fill material will come from off -site permitted source consisting of process fill or other approved material." Cut/Fill plans are a requirement under section 164.10(F)(d) of the Chatham County Soil Erosion and Sedimentation Control Ordinance. The erosion control plan provided shows no grading to install the culvert however the plans in your response show the pipe buried 1' in the stream bed. How will this be achieved without depicting grading on the plan? This completes the review of the Riparian Buffer Authorization Application. Additional comments may follow based on the response to the above comments. If you have any questions, please do not hesitate to contact me directly. Sincerely, G&W BgetA2". Drew Blake Assistant Director, CESSWI Chatham County Watershed Protection Department CC: Hadley Kirkland, Laurel Ridge Development, Inc. Deborah Shirley, Project Manager — Regulatory Specialist, Soil & Environmental Consultants, PA Jason Sullivan, Director, Chatham County Planning Department Justin Hasenfus, Senior Watershed Specialist, Chatham County Watershed Protection Dept. Rachael Thorn, Director, Chatham County Watershed Protection Department Page 3 of 3 Project Impacts Inventory Impact Summary Jordan Only Buffers County + Jordan Buffers Which types of buffers will be impacted by the project? Intermittent (1-50) Yes Ephemeral (E-30) Perennial (P - 100) Wetland (W 50D Perennial (P - 50) Intemuttent (1 50') Perennial Water Body (WB-50) FEMA Floodplain (FP Extents) Buffer Impacts (Reference each to Buffer Impact Map) Stream Name (from USGS Map, UT (unnamed tributary of stream name Buffer Impact Number Permanent/Temporary Purpose/Type of Impact on USGS) Driveway Crossing #1 Driveway Crossing #1 - B1 P (Zone 1) UT to Dry Creek (150) Driveway Crossing#1 - B2 P (Zone 2) UT to Dry Creek (1-50) Driveway Crossing # 1 B3 P Waterline (Zone 1) UT to Dry Creek (150) Driveway Crossing # 1 B4 P Waterline (Zone 2) UT to Dry Creek (1-50) Driveway Crossing # 1 B5 P Sewer Line (Zone 1) UT to Dry Creek Driveway Crossing # 1 -' B6 P Sewer Line (Zone 2) UT to Dry Creek Driveway Crossing # 1 Underground Electric B7 P (Zone 1) Driveway Crossing # 1 Underground Electric B8 P (Zone 2) UT to Dry Creek (I-50) Driveway Crossing #2 Driveway Crossing #2 - B10 P (Zone 1) UT to Dry Creek (1-50) Driveway Crossing #2 - B11 P (Zone 2) UT to Dry Creek (1-50) Driveway Crossing # 2 B12 P Waterline (Zone 1) UT to Dry Creek (I-50) Driveway Crossing # 2 B13 P Waterline (Zone 2) UT to Dry Creek (I-50) Driveway Crossing # 2 - B14 P Sewer Line (Zone 1) UT to Dry Creek (1-50) Driveway Crossing # 2 - B15 P Sewer Line (Zone 2) UT to Dry Creek (1-50) Driveway Crossing # 2 Underground Electric B16 P (Zone 1) UT to Dry Creek (1-50') Driveway Crossing # 2 Underground Electric B17 P (Zone 2) UT to Dry Creek (1-50) Driveway Crossing # 1 Cable/Telephone (Zone B18 P 1) UT to Dry Creek (I 50') 134 Driveway Crossing # 1 Cable/Telephone (Zone B19 P 2) UT to Dry Creek (1-50) 84'. Driveway Crossing #2 - Cable/Telephone (Zone B20 P 1) UT to Dry Creek (1-50) 127 Driveway Crossing # 2 Cable/Telephone (Zone B21 P 2) UT to Dry Creek (I-50) 83 Buffer Face Square Width (Linear Buffer Type Feet Impact) 2,64767 II 1,380 67 111 129 i 89 135 128 2,024 64 754 64 I 120 81 125 jl 84 120 11 UT to Dry Creek (I 50) (1-50) (1-50') Add rows as needed to list all buffer impacts separately. For buffers in the Jordan Lake Watershed, report I, P, and WB impacts as (Zone 1) first 30-feet, and (Zone 2) 30-50 feet landward. List any buffer impacts beyond Zone 2 normally. OVERALL IMPACT TOTALS IMPACT FACEWIDTH 1 1131 LF LL LL LL J J J Q) 00 O O C) CO 4,671 SF 2,134 SF 249 SF 260 SF 248 SF 261 SF 170 SF 168 SF 170 SF 167 SF 291 SF 109 SF 146 SF ZONE 1 ROAD IMPACT ZONE 2 ROAD IMPACT ZONE 1 UTILITY IMPACT (WATER) ZONE 1 UTILITY IMPACT (SEWER) ZONE 1 UTILITY IMPACT (ELECTRIC) ZONE 1 UTILITY IMPACT (CABLE / TEL.) ZONE 2 UTILITY IMPACT (WATER) ZONE 2 UTILITY IMPACT (SEWER) ZONE 2 UTILITY IMPACT (ELECTRIC) ZONE 2 UTILITY IMPACT (CABLE / TEL.) PERMANENT STREAM IMPACT PERMANENT STREAM IMPACT NO LOSS TEMPORARY STREAM IMPACT • idhirm l\\ IMPACT TOTALS IMPACT FACEWIDTH 1 1 67LF 2,647 SF 1,380 SF 129 SF 135 SF \\ 89 SF 84 SF 88 SF 84 SF *>$ ZONE 1 ROAD IMPACT ZONE 2 ROAD IMPACT ZONE 1 UTILITY IMPACT (WATER) ZONE 1 UTILITY IMPACT (SEWER) ZONE 1 UTILITY IMPACT (ELECTRIC) ZONE 1 UTILITY IMPACT (CABLE / TEL.) ZONE 2 UTILITY IMPACT (WATER) ZONE 2 UTILITY IMPACT (SEWER) ZONE 2 UTILITY IMPACT (ELECTRIC) ZONE 2 UTILITY IMPACT (CABLE / TEL.) PERMANENT STREAM IMPACT PERMANENT STREAM IMPACT NO LOSS TEMPORARY STREAM IMPACT , se N N 1 1 " W 0 W W 0 ¢ a Y N / / / / // / // / / / /,/ // // // // / / / / PIPE BEDDING / BACKFILL SECTION CONSTRUCTION SEQUENCE LAUREL RIDGE PHASE 2B - LOT 34R/35R / I / y U 6 0p ezo r Q w K U a O U W � o c, U o �, O k. Ut~i� aa�. if1 4' NTENANC JRRIDOR • 1!- ■ dilIMMk U U I c n U . I 7777 IMPACT TOTALS IMPACT FACEWIDTH 1 1 64LF LL LL LL J J J O N N7 CO N T- 2,024 SF 754 SF 120 SF 125 SF 120 SF 127 SF 81 SF 84 SF 82 SF 83 SF LL U. U. W 00 OD N 090 O) CO In ZONE 1 ROAD IMPACT ZONE 2 ROAD IMPACT ZONE 1 UTILITY IMPACT (WATER) ZONE 1 UTILITY IMPACT (SEWER) ZONE 1 UTILITY IMPACT (ELECTRIC) ZONE 1 UTILITY IMPACT (CABLE / TEL.) ZONE 2 UTILITY IMPACT (WATER) ZONE 2 UTILITY IMPACT (SEWER) ZONE 2 UTILITY IMPACT (ELECTRIC) ZONE 2 UTILITY IMPACT (CABLE / TEL.) PERMANENT STREAM IMPACT PERMANENT STREAM IMPACT NO LOSS TEMPORARY STREAM IMPACT �n J D J U¢ J woz2�aOCe¢ oL. 1o0Wc�<ILF� Z'CQ=u~ia2W�ClOZ c9 zw U¢ a LL w COJ cn z> w o ¢wOOaLLci~OccIn LL J Z QzM J LL C Q w gOE OQO2ECacn0 �OceZ MOQwO W K��JZlna'wWJw LL= F rn a w F[Co lY K 7 m F Z c) CL U OO O Q W N M 0 0 o M \ \ N _ O O �r 0 O 0 w O O ? ti D 6V w ci¢ K 8 a �i ¢¢ 0 p O rn co O W m L0 0 NE 'COMPAC ED, . TAMPED 6' LIFTS =T-I� IKlh r -III III -fin -i lE=r t=1= _il -IJ1El-� I n _iir n= iil'I IIWI II a l 5��l I I II I_I EII-I-, I� / _' -nW-- �- w ■ =�li=ln n= �'r llII�Fg�C �:��' ZY 1=1116,1,4C u II II IIp II II- _ ■ 9Le±.AtiOF JL: Ecl 11! h I HIi II II- 411 - I -I I' � .' �W,S0 I_ _I �T' I III''=I Ill N ul-= In=I� Wm� =. w O' NWS 1 _i n••••i m ■■■ O N 0 OO O 0 O —0 041 O oZ 0 0 m m La 1,11 wo 0 LA Z°w 2z3F WzFw� w j apa Ow wO woo wZ ? w z ? Q a ill ww- V' ��Z rW3°�xZ ai xO� o � zz� w mz x�o ~ = 0 p z J� p z z u N o�m xm QOp mow? w ¢ Nom ¢ �vai o n o c w a3a � � o�o w °w r m 0 z d o x u o of F� F N w u woo z Sa ago ow a � aw FmF o" N J w z w z J Q J 0 z x O i u Y O o � r F u? w u z w 0 p ?gym O ?u w O?OV Ui i (§ �I 1 1 OEM xecomer _}§ §!$ k. !§A. \!S '-= \\_ A¥v \ # ,\� Q =():! § `%_) \ _ %.� i[§2§ Li), ,t :- :- g \\ @w; �� \ / 7§§ !k ! ! ») :\ * / !