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HomeMy WebLinkAbout20180543 Ver 1_USACE_JD_2018-0416_reduced_201804183 &13 kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 April 16, 2018 Mr. David Shaeffer Asheville Regulatory Field Office US Army Corps of Engineers 151 Patton Avenue, Room 208 Asheville, NC 28801-5006 Ms. Karen Higgins NC DWR, 401 & Buffer Permitting Unit 512 North Salisbury Street Raleigh, NC 27604 Re: Pre-Construction Notification (NWP 3 & 13) Application Stream Bank Repairs on Irwin Creek Charlotte, Mecklenburg County, NC Dear Mr. Shaeffer and Ms. Higgins: On behalf of our client, Charlotte Water, Kimley-Horn is submitting the enclosed joint Section 404/401 Preconstruction Notification Application for the above referenced project for your review pursuant to Nationwide Permits #3 and #13 and General 401 Water Quality Certification numbers 4132 and 4134. This application is to conduct stream stabilization/infrastructure maintenance activities for the purposes of protecting two sanitary sewer manholes beside Irwin Creek, and reducing erosion, stabilizing the bed and banks, and protecting an exposed 27-inch reinforced concrete sanitary sewer pipe (RCP) on one Unnamed Tributary to Irwin Creek located at approximately 35.267078°N, -80.831998°W. The following information is included as part of this application submittal: ·Project Summary Sheet ·Agent Authorization ·Pre-Construction Notification Form ·Project Site Figures o Figure 1 – Vicinity o Figure 2 – USGS Topo (Derita Quadrangle, 1993) o Figure 3 – SSURGO Soils (2016 Meck. Co. Aerial Photograph) o Figure 4 – PJD Field Sketch and Proposed Conditions (2017 Meck. Co. Aerial Photograph) o Figure 4a – PJD Field Sketch and Proposed Conditions (2017 Meck. Co. Aerial Photograph) o Figure 5 – Property Ownership (2017 Meck. Co. Aerial Photograph) ·Construction Drawings for Stream Bank Repairs on Irwin Creek ·Project Site Data forms o NCDWQ Stream Identification Form Page 2 kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 ·Project Site Photo Pages ·North Carolina Heritage Program Report ·Jurisdictional Determination Request The project is located southeast of the intersection of I-85 and Statesville Avenue off Northerly Road in the City of Charlotte, Mecklenburg County, North Carolina. Existing land use in the vicinity of the project is a mix of Industrial, Single-Family Residential, and Forested. The Pre-Construction Notification (NWP 3 & 13) application presents site conditions evaluated by Kimley-Horn staff (Chris Tinklenberg, PWS) on July 23, 2015. The stream delineation was performed by utilizing survey prepared by a licensed surveyor (verified by Kimley-Horn). The proposed project consists of two components: 1) the protection of two sanitary sewer manholes along Irwin Creek (S1 – Impacts 1 & 2), and 2) stabilizing the beds and banks, reducing erosion, and protection of a 27” RCP in the channel of an Unnamed Tributary to Irwin Creek (S2 – Impacts 3 & 4). Instabilities and erosion have exposed the sanitary sewer structures in both streams, increasing the likelihood of failure. To protect the manholes, Component 1 of the project is composed of two separate sections of 40 LF (Impact 1) and 60 LF (Impact 2) of sheet piling in Irwin Creek (S1). Sheet piling is used instead of conventional bank stabilization because the site is a documented brownfield. Charlotte Water seeks to disturb as little soil as possible to prevent the exposure of any unknown contaminants. The sheet pilings will act as temporary stabilization to protect Charlotte Water’s infrastructure until a planned future greenway and stream restoration project are implemented. Component 2 of the project consists of 72 linear feet of permanent-no net loss impacts to non-wetland waters of the US. These impacts are necessary to implement natural channel design techniques (Impact 3) within a short, perennial Unnamed Tributary to Irwin Creek (S2). The proposed boulder and rip-rap step-pool will create grade control, reduce erosion, and protect the existing 27” RCP sanitary sewer pipe. Stabilizing the Unnamed Tributary will also require 10 LF of temporary impacts to install impervious dikes and a pumped diversion (Impact 4) to allow for work in dry conditions. It is anticipated that a back-hoe and/or mini excavator will be used to shape the channels and construct the step-pool structures. Please feel free to contact Chris Tinklenberg at (704) 409-1802 if you have any questions, or if additional information is necessary. Sincerely, KIMLEY-HORN AND ASSOCIATES, INC. Chris Tinklenberg, PWS Environmental Scientist Cc: Bill Deal Charlotte Water 600 East Fourth Charlotte, NC Project Summary Sheet kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 Project Name:Stream Bank Repairs on Irwin Creek Applicant Name and Address: Bill Deal Charlotte Water 600 East Fourth Street Charlotte, NC 28202 Telephone Number: 704-399-5454 Type of Request: Nationwide PCN (NWP # 3 & 13) Individual Permit Application Jurisdictional Determination Other: Included Attachments: Project Plans USGS Map NRCS Soil Survey Agent Authorization Delineation Sketch Delineation Survey Data Forms (Up & Wet) NCDWR Stream Forms USACE Stream Forms NCEEP Confirmation Aerial Photo Site Photos Agency Correspondence Other: Other: Check if applicable:CAMA County Trout County Isolated Waters Section 7, ESA Section 106, NHPA EFH Mitigation Proposed (NC EEP On-Site Off-Site Other) County:Mecklenburg Nearest City/Town: Charlotte Waterway: Irwin Creek River Basin:Lower Catawba H.U.C.: 03040103 USGS Quad Name: Derita Property Size (acres): ~0.55 (Limits of Disturbance)Approx. Size of Jurisdiction on Site (acres): 4.8 Site Coordinates (in decimal degrees): 35.267078 °N -80.831998 °W Project Location: The project area is located southeast of the intersection of I-85 and Statesville Avenue off Northerly Road. Site Description: Existing land use in the vicinity of the project is a mix of industrial, single family residential, and undeveloped forested land. Impact Summary (if applicable): 100 LF of permanent-no net loss impacts to non-wetland WoUS are necessary to install sheet pilings along the bank of Irwin Creek near two sanitary sewer manholes in order to prevent further streambank erosion near these structures. Additionally, the project will result in 72 LF of permanent-no net loss impacts to non-wetland WoUS by implementing natural channel design techniques to construct a boulder and riprap step-pool in order to create grade control, reduce erosion and protect infrastructure. 10 LF of temporary impacts are necessary in order to perform construction activities necessary to work in dry conditions. NWP # Open Water (acres) Wetland (acres) Stream Channel Intermittent and/or Unimportant Aquatic Function Perennial and/or Important Aquatic Function Temp. Perm. Temp. Perm.Temp.Perm.Temp.Perm. lf ac lf ac lf ac lf Ac 3 10 0.008 72 0.038 13 0 0 100 0.092 Total 10 0.008 172 0.13 Total Permanent Impact to Waters of the U.S. (acres)0.13 Kimley-Horn Contact: Chris Tinklenberg, PWS Direct Number: (704) 409-1802 Email: chris.tinklenberg@kimley-horn.com Page 1 of 11 PCN Form – Version 1.3 December 10, 2008 Version Office Use Only: Corps action ID no. _____________ DWQ project no. _______________ Form Version 1.3 Dec 10 2008 Pre-Construction Notification (PCN) Form A. Applicant Information 1. Processing 1a. Type(s) of approval sought from the Corps: Section 404 Permit Section 10 Permit 1b. Specify Nationwide Permit (NWP) number: 3 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? Yes No 1d. Type(s) of approval sought from the DWQ (check all that apply): 401 Water Quality Certification – Regular Non-404 Jurisdictional General Permit 401 Water Quality Certification – Express Riparian Buffer Authorization 1e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: Yes No For the record only for Corps Permit: Yes No 1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu fee program. Yes No 1g. Is the project located in any of NC’s twenty coastal counties. If yes, answer 1h below. Yes No 1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? Yes No 2. Project Information 2a. Name of project: Stream Bank Repairs on Irwin Creek 2b. County: Mecklenburg 2c. Nearest municipality / town: Charlotte 2d. Subdivision name: N/A 2e. NCDOT only, T.I.P. or state project no: N/A 3. Owner Information 3a. Name(s) on Recorded Deed: N/A (Charlotte Water Permanent Utility and Temporary Construction Easements) 3b. Deed Book and Page No. 3c. Responsible Party (for LLC if applicable): 3d. Street address: 3e. City, state, zip: 3f. Telephone no.: 3g. Fax no.: 3h. Email address: Page 2 of 11 PCN Form – Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: Agent Other, specify: Public Agency 4b. Name: Bill Deal 4c. Business name (if applicable): Charlotte Water 4d. Street address: 600 East Fourth Street 4e. City, state, zip: Charlotte, NC 28202 4f. Telephone no.: 704-399-5454 4g. Fax no.: 4h. Email address: wdeal@ci.charlotte.nc.us 5. Agent/Consultant Information (if applicable) 5a. Name: Chris Tinklenberg, PWS 5b. Business name (if applicable): Kimley-Horn and Associates, Inc. 5c. Street address: 200 South Tryon Street, Suite 200 5d. City, state, zip: Charlotte, NC 28202 5e. Telephone no.: 704-409-1802 5f. Fax no.: 5g. Email address: Chris.Tinklenberg@Kimley-Horn.com Page 3 of 11 PCN Form – Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 07718101 1b. Site coordinates (in decimal degrees): Latitude: 35.267078 Longitude: - 80.831998 (DD.DDDDDD) (-DD.DDDDDD) 1c. Property size: 0.55 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to proposed project: Irwin Creek 2b. Water Quality Classification of nearest receiving water: Class C 2c. River basin: Lower Catawba 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: The project is located southeast of the intersection of I-85 and Statesville Avenue off Northerly Road in the City of Charlotte, Mecklenburg County, North Carolina. Existing land use in the vicinity of the project is a mix of Industrial, Single-Family Residential, and Forested. 3b. List the total estimated acreage of all existing wetlands on the property: NA 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: ~2,437 lf 3d. Explain the purpose of the proposed project: The purpose of the project is to conduct stream stabilization/infrastructure maintenance activities for the purposes of protecting two sanitary sewer manholes beside Irwin Creek, and reducing erosion, stabilizing the beds and banks, and protecting an exposed 27-inch reinforced concrete sanitary sewer pipe (RCP) on one Unnamed Tributary to Irwin Creek. 3e. Describe the overall project in detail, including the type of equipment to be used: The proposed project consists of two components: 1) the protection of two sanitary sewer manholes along Irwin Creek (S1 – Impacts 1 & 2), and 2) stabilizing the beds and banks, reducing erosion, and protection of a 27” RCP in the channel of an Unnamed Tributary to Irwin Creek (S2 – Impacts 3 & 4). Component 1 of the project is composed of two separate sections of 40 LF (Impact 1) and 60 LF (Impact 2) of sheet piling in Irwin Creek (S1). Component 2 of the project consists of implementing 72 LF of natural stream design techniques (Impact 3) to create a step-pool structure in a short, perennial Unnamed Tributary to Irwin Creek (S2). Stabilizing the Unnamed Tributary will require 10 LF of temporary impacts to install impervious dikes and a pumped diversion (Impact 4) to allow for work in dry conditions. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) in the past? Comments: Yes No Unknown 4b. If the Corps made the jurisdictional determination, what type of determination was made? Preliminary Final 4c. If yes, who delineated the jurisdictional areas? Name (if known): Agency/Consultant Company: Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. Page 4 of 11 PCN Form – Version 1.3 December 10, 2008 Version 5. Project History 5a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past? Yes No Unknown 5b. If yes, explain in detail according to “help file” instructions. 6. Future Project Plans 6a. Is this a phased project? Yes No 6b. If yes, explain. C. Proposed Impacts Inventory 1. Impacts Summary 1a. Which sections were completed below for your project (check all that apply): Wetlands Streams - tributaries Buffers Open Waters Pond Construction Page 5 of 11 PCN Form – Version 1.3 December 10, 2008 Version 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. Wetland impact number – Permanent (P) or Temporary (T) 2b. Type of impact 2c. Type of wetland (if known) 2d. Forested 2e. Type of jurisdiction (Corps - 404, 10 DWQ – non- 404, other) 2f. Area of impact (acres) W1 P T Yes No Corps DWQ W2 P T Yes No Corps DWQ W3 P T Yes No Corps DWQ W4 P T Yes No Corps DWQ W5 P T Yes No Corps DWQ W6 P T Yes No Corps DWQ 2g. Total wetland impacts 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. Stream impact number - Permanent (P) or Temporary (T) 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)? 3e. Type of jurisdiction (Corps - 404, 10 DWQ – non-404, other) 3f. Average stream width (feet) 3g. Impact length (linear feet) S1 – Impact 1 P T Bank Stabilization Irwin Creek PER INT Corps DWQ 40 40 S1 – Impact 2 P T Bank Stabilization Irwin Creek PER INT Corps DWQ 40 60 S2 – Impact 3 P T Maintenance/In-Stream Structures UT to Irwin Creek PER INT Corps DWQ 20 72 S2 – Impact 4 P T Impervious dike and pumped diversion UT to Irwin Creek PER INT Corps DWQ 20 10 Page 6 of 11 PCN Form – Version 1.3 December 10, 2008 Version 3h. Total stream and tributary impacts 182 3i. Comments: 100 lf of permanent no-net loss impacts result from the installation of sheet pilings in order to stabilize the actively eroding bank and to protect infrastructure. 72 lf of permanent no-net loss impacts are necessary to implement natural channel design techniques to construct a boulder and riprap step-pool in order to create grade control, reduce erosion and protect infrastructure. 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individually list all open water impacts below. 4a. Open water impact number – Permanent (P) or Temporary (T) 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) O1 P T O2 P T O3 P T O4 P T 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, then complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f. Total 5g. Comments: 5h. Is a dam high hazard permit required? Yes No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: Page 7 of 11 PCN Form – Version 1.3 December 10, 2008 Version 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of this form. 6a. Project is in which protected basin? Neuse Tar-Pamlico Other: Catawba Randleman 6b. Buffer impact number – Permanent (P) or Temporary (T) 6c. Reason for impact 6d. Stream name 6e. Buffer mitigation required? 6f. Zone 1 impact (square feet) 6g. Zone 2 impact (square feet) B1 P T Yes No B2 P T Yes No B3 P T Yes No 6h. Total buffer impacts 6i. Comments: D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. All impacts are associated with stream stabilization/maintenance activities and will follow specific stream stabilization protocols. 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Several of the measures that will be implemented in order to minimize impacts include the utilization of a pump-around to facilitate work in the dry, the use of temporary erosion control matting and planting of native vegetation for stabilization. All sediment and erosion control and de-watering measures will be removed upon completion of construction and the temporary areas of disturbance will be stabilized and restored to pre-construction contours. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? Yes No 2b. If yes, mitigation is required by (check all that apply): DWQ Corps 2c. If yes, which mitigation option will be used for this project? Mitigation bank Payment to in-lieu fee program Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type Quantity Page 8 of 11 PCN Form – Version 1.3 December 10, 2008 Version 3c. Comments: 4. Complete if Making a Payment to In-lieu Fee Program 4a. Approval letter from in-lieu fee program is attached. Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: warm cool cold 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non-riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) – required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? Yes No 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund). 6h. Comments: Page 9 of 11 PCN Form – Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules? Yes No 1b. If yes, then is a diffuse flow plan included? If no, explain why. Comments: Yes No 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 0 % (No impervious added) 2b. Does this project require a Stormwater Management Plan? Yes No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: 2e. Who will be responsible for the review of the Stormwater Management Plan? Certified Local Government DWQ Stormwater Program DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government’s jurisdiction is this project? 3b. Which of the following locally-implemented stormwater management programs apply (check all that apply): Phase II NSW USMP Water Supply Watershed Other: 3c. Has the approved Stormwater Management Plan with proof of approval been attached? Yes No 4. DWQ Stormwater Program Review 4a. Which of the following state-implemented stormwater management programs apply (check all that apply): Coastal counties HQW ORW Session Law 2006-246 Other: 4b. Has the approved Stormwater Management Plan with proof of approval been attached? Yes No 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? Yes No 5b. Have all of the 401 Unit submittal requirements been met? Yes No Page 10 of 11 PCN Form – Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes No 1b. If you answered “yes” to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State (North Carolina) Environmental Policy Act (NEPA/SEPA)? Yes No 1c. If you answered “yes” to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.) Comments: Yes No 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, or Riparian Buffer Rules (15A NCAC 2B .0200)? Yes No 2b. Is this an after-the-fact permit application? Yes No 2c. If you answered “yes” to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes No 3b. If you answered “yes” to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered “no,” provide a short narrative description. The project objective is to repair current erosion and stabilize the stream channel in order prevent future erosion from occurring on the subject property and protect infrastructure. These repairs will not result in additional development. 4. Sewage Disposal (DWQ Requirement) 4a. 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. Page 11 of 11 PCN Form – Version 1.3 December 10, 2008 Version 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or habitat? Yes No 5b. Have you checked with the USFWS concerning Endangered Species Act impacts? Yes No 5c. If yes, indicate the USFWS Field Office you have contacted. Raleigh Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? A North Carolina Natural Heritage Program (NCNHP) database report request was submitted on March 23, 2018. Per the report, a historic element occurrence for the Carolina heelsplitter is present within Irwin Creek, however, no potentially suitable habitat for Carolina heelsplitter was observed during field reviews. 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? Yes No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? North Carolina Natural Heritage Program Database 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? Yes No 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? A review of the North Carolina State Historic Preservation Office (SHPO) HPOWEB GIS Service database did not indicate any cultural or historic resources within the project boundary. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain? Yes No 8b. If yes, explain how project meets FEMA requirements: The project meets FEMA requirements, because the impacts are not affecting the floodplain or floodway widths. 8c. What source(s) did you use to make the floodplain determination? FIRM No. 3710455500L (Effective September 2, 2015); Flood Risk Information System (FRIS) Chris Tinklenberg, PWS Applicant/Agent's Printed Name _______________________________ Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is provided.) 4/16/2018 Date ± 0 3,000 6,000Feet Figure 1: VicinityStream Bank Repairs on Irwin CreekCharlotte, Mecklenburg County, NCFebruary 2018 Figure 1 0 6 12Miles Legend Project Area ± 0 2,000 4,000Feet Figure 2: USGS Topo (Harrisburg)Stream Bank Repairs on Irwin CreekCharlotte, Mecklenburg County, NCFebruary 2018 Legend Project Area Ur CeB2 CeB2 CeB2 UO MeD CeD2 HeB EnB WkD CeB2 PaE MO CeB2 ± 0 300 600Feet Figure 3: SSURGO SoilsStream Bank Repairs on Irwin CreekCharlotte, Mecklenburg County, NC February 2018 Legend Perennial Stream (Potential Non-Wetland WoUS) Project Area SSURGO Soils NWI ± 0 250 500Feet Figure 4: PJD Field Sketch andProposed ConditionsStream Bank Repairs on Irwin CreekCharlotte, Mecklenburg County, NCMarch 2018 Legend Project Area Existing Sanitary Sewer Perennial Stream (Potential Non-Wetland WoUS) S1 - Impact Site 2Permanent-No Net Loss60 LF of Sheet Pile S1 - Impact Site 1Permanent-No Net Loss40 LF of Sheet Pile S2 - Impact Sites 3 & 4See Figure 4a S2 - Unnamed Tributary S1 - Irwin Creek ± 0 20 40Feet Figure 4a: PJD Field Sketch andProposed ConditionsStream Bank Repairs on Irwin CreekCharlotte, Mecklenburg County, NCMarch 2018 Legend Proposed In-stream Structures Proposed Constructed Riffle Project Area Proposed Contours Existing Contours Existing Sanitary Sewer Perennial Stream (Potential Non-Wetland WoUS) S2 - Impact Site 3Permanent No-Net Loss72 LF of Step-Poolsand Rip Rap Backfill S2 - Impact Site 4Temporary No-Net Loss10 LF of Pumped Diversion S2 - Unnamed Tributary S1 - Irwin Creek City of CharlottePIN: 07718101 Upper A s b u r y A v e ± 0 300 600Feet Figure 5: Property OwnershipStream Bank Repairs on Irwin CreekCharlotte, Mecklenburg County, NCFebruary 2018 Legend Project Area Meck. Co. Parcels (704) 319-7699 7520 E Independence Blvd (704) 295-1492 BARRY D. DAVIS 06-09-2016 200 SOUTH TRYON STE. 200, CHARLOTTE, NC 28202 KIMLEY-HORN AND ASSOCIATES, INC. - - - KIMLEY-HORN AND ASSOCIATES, INC. DRAFT BARRY D. DAVIS DATE SURVEY COMPLETED: TOPO NO: PHONE: INSIDE CHARLOTTE: ( ) YES ( ) NO: DATE SURVEY COMPLETED: CONTRACTOR: INSPECTOR: DESIGN COMPANY: DATE DESIGN COMPLETED: SURVEY COMPANY: PLANS PREPARED BY: SURVEYED BY: ADDRESS: ADDRESS: PHONE: TOPO NO: PHONE: INSIDE CHARLOTTE: ( ) YES ( ) NO: CONTRACTOR: INSPECTOR: DESIGN COMPANY: DATE DESIGN COMPLETED: SURVEY COMPANY: PLANS PREPARED BY: SURVEYED BY: ADDRESS: ADDRESS: PHONE: -- - - - - - 2015001369 SUMMARY OF SEWER MAINS & MANHOLES SIZE PROJECT NAME: TOTAL NO. LOTS SERVED: DATE AS BUILT: DATE OF ACTIVATION: TOTAL NO. OF MANHOLES: JOB NO: SIZE LENGTH BY: N.C.P.E. LENGTH APPROVAL SEAL A CITY OF CHARLOTTE DEPARTMENT LEGEND FOR EXISTING CONDITIONS LEGEND FOR PROPOSED PLAN NORTH CAROLI N A E NGI N E ERPROF E S SION A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF A CITY OF CHARLOTTE DEPARTMENT Riparian Mix (30 lbs/acre) Blackeyed Susan Rudbeckia hirta 20% Soft Rush Juncus effusus 10% Fox sedge Carex vulpindoidea 10% Deertongue Panicum clandestinum 8% Partridge Pea Chamaecrista fasciculata 10% Pennsyvalnia Sedge Carex pensyvanica 5% Redtop Panicgrass Panicum rigidulum 5% River oats Chasmanthium latifolium 5% Broomsedge Andropogon virginicus 5% Golden Tickseed Coreopsis tinctoria 5% Little Bluestem Schizachyrium scoparium 5% Riverbank Wildrye Elymus riparius 2% Switchgrass Panicum virgatum 2% Sideoats Grama Bouteloua curtipendula 4% Blue Grama Bouteloua gracilis 4% Upland/Sewer Easements (15 lbs/acre) Sideoats Grama Bouteloua curtipendula 25% Blue Grama Bouteloua gracilis 25% Little Bluestem Schizachyrium scoparium 15% Partridge Pea Chamaecrista fasciculata 10% River oats Chasmanthium latifolium 8% Blackeyed Susan Rudbeckia hirta 8% Redtop Panicgrass Panicum rigidulum 5% Purpletop Tridens flavus 2% Rough Dropseed Sporobolus Clandestinus 2% Temporary Seeding (130 lbs/acre) Aug 15 - May 15 Rye Grain Secale cereale 75% Wheat Grass Triticum aestivum 10% Annual Rye Lolium multiflorum 10% Browntop Millet Utochola ramosa 5% May 16 - Aug 14 Browntop Millet Utochola ramosa 80% Rye Grain Secale cereale 10% Annual Rye Lolium multiflorum 10%NORTH C AROLI N A ENGI N E ERPROFE S S ION A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF A CITY OF CHARLOTTE DEPARTMENTNORTHNORTHCAROLI N A ENGI N E ERPROFE S S ION A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF A CITY OF CHARLOTTE DEPARTMENTNORTHDocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF A CITY OF CHARLOTTE DEPARTMENTNORTHNORTHCAROLI N A ENGI N E ERPROFE S S ION A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF A CITY OF CHARLOTTE DEPARTMENTNORTHNORTHCAROLI N A ENGI N E ERPROFE S S IO N A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF A CITY OF CHARLOTTE DEPARTMENTNORTHCAROLI N A ENGI N E ERPROFE S S ION A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF Not to Scale CONSTRUCTED RIFFLE1 Not to Scale STEP-POOL STRUCTURES3 Not to Scale SANITARY SEWER BEDDING AND SUPPORT2 A CITY OF CHARLOTTE DEPARTMENTNORTHCAROLI N A E NGI N E ERPROFE S S IO N A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF Not to Scale COIR FIBER MATTING4 Not to Scale LIVE STAKES5 A CITY OF CHARLOTTE DEPARTMENTNORTHCAROLI N A E NGI N E ERPROFE S S IO N A LSEAL 030000 DocuSign Envelope ID: EC46A4D4-5A66-4CEA-A193-6BB7F7F397DF Date:Project/Site:Latitude: Evaluator:County:Longitude: Total Points:47 Stream is at least intermittent if ≥ 19 or perennial if ≥ 30 A. Geomorphology Subtotal =Absent Weak Strong Score01330133 0 1 3 2 0 1 3 3013301330133013000.5 1.5 10 0.5 1.5 1.5 3aartificial ditches are not rated; see discussions in manual B. Hydrology Subtotal =11.5 0 1 3 301311.5 1 0 1.50 0.5 1.5 1.50 0.5 1.5 1.5 3 C. Biology Subtotal =10 3 2 0 332030131013000.5 1.5 10 0.5 1.5 10 0.5 1.5 10 0.5 1.5 0 0*perennial streams may also be identified using other methods. See p. 35 of manual. Notes: 26. Wetland plants in streambed FACW = 0.75; OBL = 1.5; Other = 0 23. Crayfish 124. Amphibians 125. Algae 1 20. Macrobenthos (note diversity and abundance)221. Aquatic Mollusks 222. Fish 1 19. Rooted upland plants in streambed 1 14. Leaf litter 0.515. Sediment on plants or debris 116. Organic debris lines or piles 117. Soil-based evidence of high water table?No = 0 Yes = 3 18. Fibrous roots in streambed 1 13. Iron oxidizing bacteria 2 8. Headcuts 29. Grade control 110. Natural valley 111. Second or greater order channel No = 0 Yes = 3 12. Presence of Baseflow 2 5. Active/relic floodplain 26. Depositional bars or benches 27. Recent alluvial deposits 2 2. Sinuosity of channel along thalweg 23. In-channel structure: ex. riffle-pool, step-pool, ripple-pool sequence 2 4. Particle size of stream substrate 2 1a. Continuity of channel bed and bank 2 North Carolina Division of Water Quality - Stream Identification Form, Version 4.11 7/23/2015 Stream 1 (S1)Irwin Creek 35.267505 Chris Tinklenberg, PWS Mecklenburg -80.831279 Stream Determination (circle one)Ephemeral Intermittent Perennial Othere.g. Quad Name:Derita Quad 25.5 Moderate Date:Project/Site:Latitude: Evaluator:County:Longitude: Total Points:32.5 Stream is at least intermittent if ≥ 19 or perennial if ≥ 30 A. Geomorphology Subtotal =Absent Weak Strong Score01330131 0 1 3 1 0 1 3 1013101330133013000.5 1.5 10 0.5 1.5 1 0aartificial ditches are not rated; see discussions in manual B. Hydrology Subtotal =11.5 0 1 3 301311.5 1 0 1.50 0.5 1.5 1.50 0.5 1.5 1.5 3 C. Biology Subtotal =6 3 2 0 33203013001300 0.5 1.5 00 0.5 1.5 00 0.5 1.5 00 0.5 1.5 0 0*perennial streams may also be identified using other methods. See p. 35 of manual. Notes:Sewer line crossing is holding grade and not allowing the streamto headcut upstreamBanks are ~10' tall and ~15' wide 26. Wetland plants in streambed FACW = 0.75; OBL = 1.5; Other = 0 23. Crayfish 124. Amphibians 125. Algae 1 20. Macrobenthos (note diversity and abundance)221. Aquatic Mollusks 222. Fish 1 19. Rooted upland plants in streambed 1 14. Leaf litter 0.515. Sediment on plants or debris 116. Organic debris lines or piles 117. Soil-based evidence of high water table?No = 0 Yes = 3 18. Fibrous roots in streambed 1 13. Iron oxidizing bacteria 2 8. Headcuts 29. Grade control 110. Natural valley 111. Second or greater order channel No = 0 Yes = 3 12. Presence of Baseflow 2 5. Active/relic floodplain 26. Depositional bars or benches 27. Recent alluvial deposits 2 2. Sinuosity of channel along thalweg 23. In-channel structure: ex. riffle-pool, step-pool, ripple-pool sequence 2 4. Particle size of stream substrate 2 1a. Continuity of channel bed and bank 2 North Carolina Division of Water Quality - Stream Identification Form, Version 4.11 7/23/2015 Stream 2 (S2)Unnamed Tributary 35.267078 Chris Tinklenberg, PWS Mecklenburg -80.831998 Stream Determination (circle one)Ephemeral Intermittent Perennial Othere.g. Quad Name:Derita Quad 15 Moderate Photo 1 – S1 – Irwin Creek downstream of the Unnamed Tributary (July 23, 2015) Photo 2 –S2 – Exposed sanitary sewer pipe in the Unnamed Tributary (November 2, 2017) Title Photo Pages Prepared For Project Stream Bank Repairs on Irwin Creek Charlotte, Mecklenburg County, North Carolina Prepared By Date Project Number 4/2/18 015474025 Photo 3 –S2 – Unnamed Tributary downstream of the exposed sanitary sewer pipe. (July 23, 2015) Photo 4 –S2 – Unnamed Tributary upstream of the exposed sanitary sewer pipe. (July 23, 2015) Title Photo Pages Prepared For Project Stream Bank Repairs on Irwin Creek Charlotte, Mecklenburg County, North Carolina Prepared By Date Project Number 4/2/18 015474025 Photo 5 –S1 – Exposed manhole along Irwin Creek, near Station 12+50. (November 2, 2017) Photo 6 –S1 – Exposed manhole along Irwin Creek, near Station 12+50. (November 16, 2015) Title Photo Pages Prepared For Project Stream Bank Repairs on Irwin Creek Charlotte, Mecklenburg County, North Carolina Prepared By Date Project Number 4/2/18 015474025 Photo 7 – S1 –Exposed manhole along Irwin Creek, near Station 2+50. (July 23, 2015) Photo 8 – S1 –Exposed manhole along Irwin Creek, near Station 2+50. (November 2, 2017) Title Photo Pages Prepared For Project Stream Bank Repairs on Irwin Creek Charlotte, Mecklenburg County, North Carolina Prepared By Date Project Number 4/2/18 015474025 NCNHDE-5643 March 23, 2018 Chris Tinklenberg Kimley-Horn 200 South Tryon St. Charlotte, NC 28202 RE: Stream Bank Repairs on Irwin Creek; 015474025_8 Dear Chris Tinklenberg: The North Carolina Natural Heritage Program (NCNHP) appreciates the opportunity to provide information about natural heritage resources for the project referenced above. A query of the NCNHP database indicates that there are records for rare species, important natural communities, natural areas, or conservation/managed areas within the proposed project boundary. These results are presented in the attached ‘Documented Occurrences’ tables and map. The attached ‘Potential Occurrences’ table summarizes rare species and natural communities that have been documented within a one-mile radius of the property boundary. The proximity of these records suggests that these natural heritage elements may potentially be present in the project area if suitable habitat exists and is included for reference. Tables of natural areas and conservation/managed area within a one-mile radius of the project area, if any, are also included in this report. Please note that natural heritage element data are maintained for the purposes of conservation planning, project review, and scientific research, and are not intended for use as the primary criteria for regulatory decisions. Information provided by the NCNHP database may not be published without prior written notification to the NCNHP, and the NCNHP must be credited as an information source in these publications. Maps of NCNHP data may not be redistributed without permission. Also please note that the NC Natural Heritage Program may follow this letter with additional correspondence if a Dedicated Nature Preserve (DNP), Registered Heritage Area (RHA), Clean Water Management Trust Fund (CWMTF) easement, or an occurrence of a Federally-listed species is documented near the project area. If you have questions regarding the information provided in this letter or need additional assistance, please contact Rodney A. Butler at rodney.butler@ncdcr.gov or 919.707.8603. Sincerely, NC Natural Heritage Program Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Intersecting the Project Area Stream Bank Repairs on Irwin Creek Project No. 015474025_8 March 23, 2018 NCNHDE-5643 Element Occurrences Documented Within Project Area Taxonomic Group EO ID Scientific Name Common Name Last Observation Date Element Occurrence Rank Accuracy Federal Status State Status Global Rank State Rank Freshwater Bivalve 7236 Lasmigona decorata Carolina Heelsplitter 1880-Pre X 3-Medium Endangered Endangered G1 S1 No Natural Areas are Documented within the Project Area No Managed Areas Documented within the Project Area Definitions and an explanation of status designations and codes can be found at https://ncnhde.natureserve.org/content/help. Data query generated on March 23, 2018; source: NCNHP, Q1 January 2018. Please resubmit your information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database. Page 2 of 4 Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Within a One-mile Radius of the Project Area Stream Bank Repairs on Irwin Creek Project No. 015474025_8 March 23, 2018 NCNHDE-5643 Element Occurrences Documented Within a One-mile Radius of the Project Area Taxonomic Group EO ID Scientific Name Common Name Last Observation Date Element Occurrence Rank Accuracy Federal Status State Status Global Rank State Rank Freshwater Bivalve 7236 Lasmigona decorata Carolina Heelsplitter 1880-Pre X 3-Medium Endangered Endangered G1 S1 Vascular Plant 13743 Delphinium exaltatum Tall Larkspur 1800s Hi?5-Very Low ---Endangered G3 S2 No Natural Areas are Documented Within a One-mile Radius of the Project Area Managed Areas Documented Within a One-mile Radius of the Project Area Managed Area Name Owner Owner Type Mecklenburg County Open Space Mecklenburg County Local Government Definitions and an explanation of status designations and codes can be found at https://ncnhde.natureserve.org/content/help. Data query generated on March 23, 2018; source: NCNHP, Q1 January 2018. Please resubmit your information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database. Page 3 of 4 Powered by TCPDF (www.tcpdf.org) Page 4 of 4 4/16/2018