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HomeMy WebLinkAbout20100457 Ver 1_401 Application_20100610AL I Carolina Wetland Services Carolina Wetland Services, Inc. 550 East Westinghouse Boulevard Charlotte, NC 28273 704-527-1177 - Phone 704-527-1133-Fax TO: Ms. Cyndi Karoly N.C. Division of Water Quality 2321 Crabtree Boulevard, Suite 250 Raleigh, NC 27604 ? ? i0 r-_m ? 'u JUN I w N10 .E,HR . W.VER QUAUTY WETL WS AM 6TORMVAIIE•.R @RAKH LETTER OF TRANSMITTAL WE ARE SENDING YOU: ®Attached []Under separate cover via the following items: ? Prints ® Plans ? JD Package ? Specifications ? Copy of letter ? Change order ? Wetland Survey ® Other TC L'AT/`T nCTTDL'O enc -1 DATE 1 06/08/10 -' 1 V1V1.1: COPIES DESCRIPTION 7 Stonebridge Pond Permit Application 2 06/08/10 7 Construction Plans 3 06/08/10 1 $240 Application Fee Check THESE ARE TRANSMI TTED as checked helnw- ®For approval []Approved as submitted []Resubmit copies for approval ®For your use []Approved as noted []Submit copies for distribution ?As requested []Returned for corrections []Return corrected prints ?For review and comment ?For your verification and signature REMARKS: Ms. Karoly Please find attached a permit application for maintenance activities on a pond located off Stonebridge Lane in Charlotte. Please let me know if you have any questions or comments Copy to: File Thank you, 1? Ln W 1&a omas Blackwell Project Scientist 20100457 Date: 06-08-10 CWS Project 2010-2706 DWQ #: NORTH CAROLINA • SOUTH CAROLINA Corps Submittal Cover Sheet Please provide the following info: 1. Project Name Stonebridge Pond Maintenance Project 2. Name of Property Owner/Applicant: Charlotte Storm Water Services (CSWS) 3. Name of Consultant/Agent: CSWS; Mr. Isaac Hinson, PWS *Agent authorization needs to be attached. 4. Related/Previous Action ID number(s): N/A 5. Site Address: Stonebridge Pond, Charlotte, NC 6. Subdivision Name: N/A 7. City: Charlotte 8. County: Mecklenburg 9. Lat: N35.183840° Long: W80.816148° (Decimal Degrees Please) 10. Quadrangle Name: Charlotte East, dated 1991 11. Waterway: UT to Brier Creek 12. Watershed: Catawba (HU# 03050103) 13. Requested Action: X Nationwide Permit # 3 & 33 General Permit # X Jurisdictional Determination Request Pre-Application Request The following information will be completed by Corps office: AID: Prepare File Folder Assign number in ORM Begin Date Authorization: Section 10 Section 404 Project Description/ Nature of Activity/ Project Purpose: Site/Waters Name: Keywords: 11 1 )CWS] Carolina Wetland Servu;es June 8, 2010 Ms. Amanda Jones U.S. Army Corps of Engineers 151 Patton Avenue Asheville, NC 28801 550 E WESTINGHOUSE BLVD. CHARLOTTE, NC 28273 866-527-1177 (office) 704-527-1133 (fax) Subject: Pre-Construction Notification Pursuant to Nationwide Permit No. 3 and 33 and Water Quality Certification No. 3687 Stonebridge Pond Maintenance Project Charlotte, North Carolina Carolina Wetland Services Project No. 2010-2706 The Stonebridge Pond Maintenance Project is approximately 3.6 acres in extent, and is located approximately 0.45 miles northeast of the Providence Road - Wendover Road Intersection in Charlotte, North Carolina (Figure 1. USGS Site Location Map, attached). The purpose of this project is to maintain the currently failing pond outlet. Charlotte Storm Water Services (CSWS) has contracted Carolina Wetland Services, Inc. (CWS) to provide Section 404/401 permitting services for this project. Applicant Name: Charlotte Storm Water Services, Isaac J. Hinson, PWS Mailing Address: 600 East Fourth Street, Charlotte, NC 28202 Phone Number of Owner/Applicant: 704-336-4495 Street Address of Project: Stonebridge Pond Maintenance Project Tax Parcel ID: 181-021-07,-09,-13,-26,-27,-47,-57,-82 Waterway: UT to Brier Creek Basin: Catawba (HU# 03050103) City: Charlotte County: Mecklenburg Decimal Degree Coordinate Location of Project Site: N35.183840 °, W80.816148 ° USGS Quadrangle Name: Charlotte East, NC, dated 1991 Current Land Use The current land use for the project area is single family residential, with maintained lawns and small adjacent wooded areas particularly adjacent to the pond. The northernmost portion of the project area (downstream of the pond) is located within the floodplain of Brier creek. Dominant vegetation within the project area consists of sweetgum (Liquidambar styraciflua), red maple (Acer rubrum), tulip poplar (Liriodendron tulipifera), southern red oak (Quercus falcata), white oak (Quercus alba), American beech (Fagus grandifolia), American holly (Ilex opaca), common blackberry (Rubus argutus), poison ivy (Toxicodendron radicans), muscadine (Vitis rotundifolia), English ivy (Hedera helix), and fescue (Festuca sp.) According to the Soil Survey of Mecklenburg County' (Figure 2. NRCS Soil Survey Map, attached), on-site soils consist of Enon sandy loam, 8 to 15 percent slopes (EnD), and Monacan soils (MO). ' United States Department of Agriculture, 1971. Soil Survey of Mecklenburg County, North Carolina. NORTH CAROLINA - SOUTH CAROLINA • NEW YORK WWW.CWS-INC.NET Stonebridge Pond Maintenance Project June 8, 2010 Nationwide Permit Nos. 3 and 33 Project No. 2010-2706 Enon sandy loam exhibits slow permeability and medium available water capacity. Monacan soils exhibit moderate permeability and a high available water capacity. Enon sandy loam is well drained. Monacan soils are somewhat poorly drained and are listed in the North Carolina Hydric Soils List for Mecklenburg County as having hydric inclusions2. Monacan soils are also listed as hydric soils (hydric criteria 2B3, 4) on the National Hydric Soils Lists. Jurisdictional Determination On May 12, 2010, CWS's Thomas Blackwell and Gregg Antemann, PWS delineated on-site jurisdictional waters of the U.S. using the U.S. Army Corps of Engineers (USACE) - Routine On-Site Determination Method. This method is defined in the 1987 Corps of Engineers Wetlands Delineation Manual.4 A Routine On-Site Data Forms representative of Wetlands AA, BB, and CC is enclosed (DPI). A Routine On-Site Data Form representative of non jurisdictional upland areas has been enclosed as data point 2 (DP2). Jurisdictional stream channels were classified according to recent USACE and North Carolina Division of Water Quality (NCDWQ)5 guidance. These classifications included sampling with a D- shaped dip net, taking photographs, and defining approximate breakpoints (location at which a channel changes classification) within each on-site stream channel. NCDWQ Stream Classification Forms and USACE Stream Quality Assessment Worksheets representative of Stream A are enclosed (SCP1 - SCP2). The results of the on-site field investigation indicate that there is one jurisdictional stream channel (Stream A), one jurisdictional open water area (Pond A), and three jurisdictional wetland areas (Wetlands AA, BB, and CC) located within the project area (Figure 3, attached). Stream A is an unnamed tributary to Brier Creek. Brier Creek is within the Catawba River basin (HU# 03050103)6 and is classified as "Class C" waters by the NCDWQ. On-Site jurisdictional waters are summarized in Table 1., below. 2 United States Department of Agriculture - Natural Resources Conservation Service, 1999. North Carolina Hydric Soils List, USDA- NRCS North Carolina State Office, Raleigh 3 United States Department of Agriculture -Natural Resources Conservation Service, 2010. 2010 National Hydric Soils List by State 4 Environmental Laboratory. "Corps of Engineers Wetlands Delineation Manual," Technical Report Y-87-1, US Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. 5 North Carolina Division of Water Quality, 1999. Stream Classification Method. Version 3.1. 6 "HU#" is the Hydrologic Unit Code. U.S. Geological Survey, 1974. Hydrologic Unit Map, State of North Carolina. Stonebridge Pond Maintenance Project June 8, 2010 Nationwide Permit Nos. 3 and 33 Project No. 2010-2706 Table 1. Summary of On-Site Jurisdictional Waters Jurisdiction NCDWQ USACE Approx , . A Jurisdictional USACE/EPA SCP ' Steam'. Stream Length pprox Feature Rapano - s fntermittent/ No. Classification: Assessment Lineat Feet Acreage Classification Perennial Score Score tif) (ac.) SCP1 42.5 64 St A P i l RP ream erenn a W Perennial 268 0.074 SCP2 38.5 50 Channel Sub total: 268 0.074 r?; 1.yI „T ?> 4 ? , 'i `1# sy. ! V Y7+C.S f.i l t. t ? ?, <VrY•t, f +, Wetland AA Abutting Perennial RPW DPI W80.815289° N35.183079° N/A 0.069 Wetland BB Abutting Perennial RPW DPI W80.815157° N35.183419° N/A 0.067 Wetland CC Abutting Perennial RPW DPI W80.815144° N35.183897° N/A 0.029 Wetland Subtotal: N/A 0.165 F 4 `41i S .v C.'„ c fT ,.. i+ 'c? '.c ,ETC lil i -? 1+' k t. k lid xW Y ? P?J ?T' y t 't? -•!'u''? ?, t F ?.V` b i?' R.!.t`{ aY? ,f ? r?JJ?•''? x ? ?7. a..t ' , Y ,?f? '.y t •. .e,f'c av , - < .., .. . , e ,: .y'..: xi x a;q 4 t,. r '>t ... 7 ? • 7f. Pond A Impoundment of Perennial RPW W80.815640° N35.183727° N/A 1.48 Open Water Subtotal: N/A 1.48 On-Site Total: 268 1.716 Perennial Streams Stream A flows northwest through the project area for approximately 268 linear feet and has been impounded to form Pond A (Figure 3, enclosed). Stream A enters Pond A at the southern end of the pond and exits over the dam located at the northwest corner of the pond. Stream A then flows west to its offsite confluence with Brier Creek. Stream A was evaluated both upstream and downstream of Pond A. Upstream of the pond, Stream A exhibited a strong bed and bank, moderate in-channel structure, substrate consisting of gravel and small cobbles, strong flow, and an average ordinary high water width of 12 feet. Biological sampling revealed a weak presence of fish and macrobenthos, and a moderate presence of filamentous algae and amphibians. Downstream of the pond, Stream A exhibited a strong bed and bank, weak sinuosity, moderate in-channel structure, substrate consisting of coarse sand and gravel, depositional bars and benches, moderate flow, and an average ordinary high water width of 9 feet. Biological sampling revealed a weak presence of crayfish, a moderate presence of amphibians, and a strong presence of filamentous algae. Stream characteristics, both upstream and downstream of Pond A, indicate that flow is present year round. Therefore, Stream A was classified as a relatively permanent water (RPW) with perennial flow according to USACE/EPA. Perennial RPW Stream A scored 64 (upstream of pond) and 50 (downstream of pond) out of a possible 100 points on the USACE Stream Quality Assessment Worksheet and 42.5 (upstream of pond) and 38.5 (downstream of pond) out of a possible 69.5 points on the NCDWQ Stream Classification Form (SCP1 & SCP2, enclosed). Photographs C and E are representative of Perennial RPW Stream A Stonebridge Pond Maintenance Project June 8, 2010 Nationwide Permit Nos. 3 and 33 Project No 2010-2706 Wetlands Wetland AA is approximately 0.069 acre in extent, and is located at the southern end of Pond A directly abutting Perennial RPW Stream A and Pond A. Wetlands BB and CC are approximately 0.067 and 0.029 acre in extent respectively, and are located directly abutting the eastern side of Pond A (Figure 3, attached). Wetlands AA, BB, and CC exhibit low chroma soils (2.5Y 3/1) with few, faint mottles (10YR 3/3), saturation within the upper 12 inches of the soil profile, wetland drainage patterns, and water stained leaves. Dominant vegetation in these wetlands includes green ash (Fraxinus pennsylvanica), box elder (Acer negundo), silky dogwood (Corpus amomum), ninebark (Physocarpus opulifolius), jewelweed (Impatiens capensis), curly dock (Rumex crispus), fowl mannagrass (Glyceria striata), and lurid sedge (Carex lurida). Wetlands AA and BB have become established on sediment bars that have accumulated at the inlet to the pond. A Routine On-Site Determination Form representative of Wetlands AA, BB, and CC is enclosed as DPI. Photographs B and D are representative of Wetland AA. Open Waters Pond A is approximately 1.48 acres in extent and is an impoundment of Perennial RPW Stream A. Pond A is very shallow (between 1 and 3 feet) as a result of extensive sediment input from Perennial RPW Stream A. Photographs A and D are representative of Pond A. Agency Correspondence Cultural Resources A letter was forwarded to the State Historic Preservation Office (SHPO) on May 20, 2010 to determine the presence of any areas of architectural, historic, or archaeological significance that would be affected by the project. As of the date of this submittal, a response from SHPO has not yet been received. The project is located in a residential subdivision. CWS consulted the Charlotte Mecklenburg Historic Landmarks Commission database and found no listed properties within the project area. Protected Species A letter was forwarded to the North Carolina Natural Heritage Program (NCNHP) on May 20, 2010 to determine the presence of any federally-listed, candidate endangered, threatened species or critical habitat located within the project area. In a response letter date May 27, 2010 (attached), the NCNHP stated that "The Natural Heritage Program has no record of rare species, significant natural communities, or significant natural heritage areas at the site nor within a mile of the project area. There is a conservation area located about 0.12-mile to the north of the project site - a 22.38-acre tract owned as a preserve by the Catawba Land Conservancy. It is located on the eastern side of Brier Creek. However, as Brier Creek flows to the south, and as the project site is located south (downstream) of the preserve, construction at the pond and vicinity is not expected to impact conservation land." Purpose and Need for the Project The outlet structure of the Stonebridge pond is currently in a failing condition. The right wing wall of the outlet structure is serving as a retaining wall for the pond embankment soil. The embankment soils immediately adjacent to the wing wall are currently failing. Visual signs of movement of the wing wall have been observed. The movement of this retaining wall (wing wall) is contributing to slope movement and failure on the downstream side of the pond embankment. Furthermore, scouring is occurring at the base of the wing wall which is further reducing its structural integrity. In addition, the spillway capacity is insufficient to pass a 10-year storm event without overtopping the embankment. 4 Stonebridge Pond Maintenance Project June 8, 2010 Nationwide Permit Nos. 3 and 33 Project No 2010-2706 Such overtopping of the embankment would further damage the wing wall area, and as a result further weaken the embankment itself. The purpose of this project is to perform maintenance on the currently failing pond outlet in order to ensure the future stability and safety of the pond embankment and outlet. This will consist of replacing and slightly extending the right wing wall at the outlet, which is currently undermining. The splash pad at the outlet will also be replaced with grouted rip rap. This will ensure the stability of the wing wall and pond embankment. A notch will also be cut into the spillway in order to provide some detention during storm events, and reduce the incidence of embankment overtopping. This will result in lowering the existing permanent water surface elevation (WSE) by 6 inches. A toe drain will be installed in the dam embankment, and the downstream slope of the pond embankment will be flattened to a 4:1 slope (see Construction Plan Sheets X-0 and X-1 for details). Avoidance and Minimization Impacts to on-site jurisdictional waters of the U.S. have been reduced to the maximum extent practicable. Proper sediment and erosion control measures will be used to minimize disturbances to downstream waters. All work will be constructed in the dry in accordance with Water Quality Certification No. 3687. All dredge material will be disposed of in an appropriate upland location. Proposed Impacts to Jurisdictional Waters Unavoidable impacts to Jurisdictional Waters of the U.S. total 18 linear feet of stream impacts, and 0.051 acre of wetland impacts. Unavoidable impacts to Perennial RPW Stream A total 18 linear feet. These impacts include 10 linear feet (0.003 acre) of permanent impacts and approximately 8 linear feet (0.003) of temporary impacts (Figure 4, attached). Impacts to Perennial RPW Stream A are the result of rip rap apron installation (Construction Plan Sheet 5, attached), and the installation of a temporary cofferdam at the point where Stream A enters Pond A (Construction Plan Sheet 6 and 8, attached). The temporary cofferdam is necessary in order to allow work on the pond outlet to be conducted in the dry. A cross- section view of the cofferdam is attached (Construction Plan Sheet 8, detail 2/8). The 10 linear feet of rip rap impact is the result of the installation of a 30 if rip rap splash pad. This will replace the currently failing 201f splash pad downstream of the bridge. A plan view and cross-sectional detail of the proposed rip rap apron are attached (Construction Plan Sheet EC-2, detail 1/EC-2). In addition, the pond will be dredged 3-4 feet (depending on the location). In the course of dredging, a baffle mound will be left (below the WSE) toward the southern end of the pond. This mound will act to trap some of the sediments as they enter the pond and so provide for easier future maintenance, and some water quality benefits. Approximately, 0.019 acre of Wetland AA and 0.032 acre of Wetland BB will be permanently impacted by the dredging (Figure 4, attached). Cross-Sections of the proposed dredging are shown on Construction Plan Sheet X-1 (attached). There is a large accumulation of sediments in the upper portions of the pond. These wetlands have become established on bars that have developed where Stream A discharges into Pond A. Unavoidable impacts to on-site jurisdictional waters are summarized in Table 2., below. Stonebridge Pond Maintenance Project June 8, 2010 Nationwide Permit Nos. 3 and 33 Project No. 2010-2706 Table 2. Summary of Impacts to On-Site Jurisdictional Waters Jurisdictional Feature Intermittent / Perennial Imp act Type NWP' No. Temporary Permanent Approximate Len th l Approximate Acreage Perennial RPW Rip-Rap 3 10 if (Permanent) 0.003 Stream A Perennial Coffer Dam 33 81f (Temporary) 0.003 (Temporary) Stream Impacts (Total) 18 if 0.006 acre Stream Impacts (Temporary). 8 If 0.003 acre Stream Impacts (Permanent) 10 if 0.003 acre Wetland AA N/A Dredging 3 N/A 0.019 Wetland BB N/A Dredging 3 N/A 0.032 Wetland Impacts (Total) ' N/A 0.051 acre Wetland Impacts (Temporary) N/A 0.000acre Wetland Impacts (Permanent) N/A 0.051 acre On behalf of CSWS, CWS is submitting a Pre-Construction Notification Application with attachments in accordance with Nationwide Permit General Condition No. 27, (enclosed). Compensatory Mitigation Permanent impacts to jurisdictional waters of the U. S. have been limited to 10 linear feet of perennial stream and 0.051 acre of wetland. Therefore, no mitigation is proposed for impacts associated with this project. Please do not hesitate to contact Isaac Hinson at 704-336-4495 or ihinson@ci.charlotte.nc.us should you have any questions or comments regarding these findings. pabc? Isaac J. Hi son, PWS Wetland Specialist ,,loud Thomas J. Blackwell Project Scientist Enclosures: Figure 1. USGS 7.5' Charlotte East, NC Topographic Quadrangle Figure 2. NRCS Mecklenburg County Soil Survey Figure 3. Approximate Jurisdictional Boundary Field Map Figure 4. Proposed Impacts Request for Jurisdictional Determination Form Pre-Construction Notification Pursuant to Nationwide Permit No. 3 and 33 NCDWQ Stream Classification Form (SCP1 - SCP2) USACE Stream Quality Assessment Worksheet (SCP1 - SCP2) USACE Routine Wetland Determination Data Form (DPI - DP2) Approved Jurisdictional Determination Basis Form Agency Correspondence Construction Plans cc: Ms. Cyndi Karoly, N.C. Division of Water Quality Mr. Mark Cantrell, U.S. Fish & Wildlife Service 6 . Stonebridge Pond Maintenance Project June 8, 2010 Figure 1. USGS 7.5 Minute Topographic Site Location Map 7.5 Minute Topographic Map Series, Charlotte East, North Carolina, dated 1991. Approximate Scale 1" = 2000' REQUEST FOR JURISDICTIONAL DETERMINATION DATE: June 8, 2010 COUNTY Mecklenburg County, North Carolina TOTAL ACREAGE OF TRACT - 3.6 acres PROJECT NAME (if applicable) Stonebridge Pond Maintenance Project PROPERTY OWNER/APPLICANT (name, address and phone): Charlotte Storm Water Services POC: Mr. Isaac J. Hinson, PWS at (704) 336-4495 600 East Fourth Street Charlotte, North Carolina 28202 NAME OF CONSULTANT, ENGINEER, DEVELOPER (if applicable): STATUS OF PROJECT (check one): ( ) On-going site work for development purposes ( X) Project in planning stages (Type of project: maintenance ) ( ) No specific development planned at present ( ) Project already completed (Type of project: ) ADDITIONAL INFORMATION REQUIRED: Check items submitted - forward as much information as is available. At a minimum, the following first two items must be forwarded. (X) Figure 1. USGS 7.5-Minute Charlotte East, NC Topographic Quadrangle (X ) Figure 2. NRCS Mecklenburg County Soil Survey (X) Figure 3. Approximate Jurisdictional Boundary Field Map (X ) Figure 4. Proposed Impacts (X) Pre-Construction Notification Pursuant to Nationwide Permit No. 3 & 33 (X ) NCDWQ Stream Classification Forms (SCP1 - SCP2) (X ) USACE Stream Quality Assessment Worksheets (SCP1- SCP2) (X) Approved Jurisdictional Determination Basis Forms (X) Routine On-Site Data Form (DPI- DP2) c Signature of Property Owner or Authorized Agent Mr. Isaac J. Hinson, PWS 2 0 1 0 0 4 5 7 ot WA TF19 O? 0G p < Office Use Only: Corps action ID no. DWQ project no. Form Version 1.0 November 2008 Pre-Construction Notification (PCN) Form A. Applicant Information i S 1. Processing 1a. Type(s) of approval sought from the Corps: ®Section 404 Permit El Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 3 + 33 or General Permit (GP) number: 1 c. Has the NWP or GP number been verified by the Corps? ? Yes ® No 1 d. 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 1 e. 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 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ? Yes ® No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No 2. Project Information 2a. Name of project: Stonebridge Pond Maintenance Project 2b. County: Mecklenburg --1 2c. Nearest municipality / town: \Z:7. LZM U V Charlotte R L=3 2d. Subdivision name: U N/A H IN a 20 10 2e. NCDOT only, T.I.P. or state project no: DBR-WATER LVJALriY AND 51UMAGAIS 3. Owner Information WETLANDS No! in 3a. Name on Recorded Deed: Marshal and Laura Gilchrist 3b. Deed Book and Page No. 23024-826 3c. Responsible Party (for LLC if applicable): 3d. Street address: 146 Placid Place 3e. City, state, zip: Charlotte, NC, 28211 3f. Telephone no.: 3g. Fax no.: 3h. Email address: 10 Page 1 of 13 PCN Form - Version 1.0 November 2008 Version Section A. Applicant Information, continued 4. Applicant Information (if different from owner) 4a. Applicant is: ? Agent ® Other, specify: City of Charlotte 4b. Name: Mr. Isaac Hinson, PWS 4c. Business name (if applicable): City of Charlotte Storm Water Services (CSWS) 4d. Street address: 600 East Fourth Street 4e. City, state, zip: Charlotte, North Carolina, 28202 4f. Telephone no.: (704) 336-4495 4g. Fax no.: (704) 336-6586 4h. Email address: ihinson@ci.charlotte.nc.us 5. Agent/Consultant Information (if applicable) 5a. Name: 5b. Business name (if applicable): 5c. Street address: 5d. City, state, zip: 5e. Telephone no.: 5f. Fax no.: 5g. Email address: Page 2 of 13 PCN Form - November 2008 Version B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 181-021-07,-09,-13,-26,-27,-47,-57,-82 1 b. Site coordinates (in decimal degrees): 35.183840'N - 80.816148'W 1 c. Property size: 3.6 acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Brier Creek proposed project: 2b. Water Quality Classification of nearest receiving water: Class C 2c. River basin: 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 current land use for the project area is single family residential, with maintained lawns and small adjacent wooded areas particularly adjacent to the pond. The northernmost portion of the project area (downstream of the pond) is located within the floodplain of Brier creek. 3b. List the total estimated acreage of all existing wetlands on the property: 0.165 acre 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 268 linear feet 3d. Explain the purpose of the proposed project: The outlet structure of the Stonebridge pond is currently in a failing condition. The right wing wall of the outlet structure is serving as a retaining wall for the pond embankment soil. The embankment soils immediately adjacent to the wing wall are currently failing. Visual signs of movement of the wing wall have been observed. The movement of this retaining wall (wing wall) is contributing to slope movement and failure on the downstream side of the pond embankment . Furthermore, scouring is occurring at the base of the wing wall which is further reducing its structural integrity. In addition, the spillway capacity is insufficient to pass a 10-year storm event without overtopping the embankment Such . overtopping of the embankment would further damage the wing wall area, and as a result further weaken the embankment itself. The purpose of this project is to perform maintenance on the currently failing pond outlet in order to ensure the future stability and safety of the pond embankment and outlet. 3e. Describe the overall project in detail, including the type of equipment to be used: The project will consist of replacing and slightly extending the right wing wall at the outlet, which is currently undermining. The splash pad at the outlet will also be replaced with grouted ri ra Thi ill p p. s w ensure the stability of the wing wall and pond embankment. A notch will also be cut into the spillway in order to provide some detention during storm events and , reduce the incidence of embankment overtopping. This will result in lowering the existing permanent water surface elevation (WSE) by 6 inches. A toe drain will be installed in the dam embankment, and the downstream slope of the pond embankment will be flattened to a 4:1 slope (see plan sheets X-0 and X-1 for details). The pond will also be dredged to remove accumulated sediments and return it to its original condition . A trackhoe and typical excavation equipment will be used. This work will occur in the dry. Page 3 of 13 PCN Form - Version 1.0 November 2008 Version B. Project Information and Prior Project History 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? ? 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): N/A Agency/Consultant Company: N/A Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. N/A 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. Page 4 of 13 PCN Form - November 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ® Wetlands ® Streams - tributaries ? Buffers ? Open Waters ? Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number - Type of Type of wetland Forested (Corps - 404, Area of impact (acres) Permanent (P) or impact (if known) DWQ - non-404, other) Temporary T W1 ® P ? T Dredging ? Yes ® No ® Corps ? DWQ 0.019 W2 ® P ? T Dredging Emergent ® Yes ? No ® Corps ? DWQ 0.032 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 0.051 2h. Comments: Wetlands have become established on sediment bars. 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. 3b. 3c. 3d. 3e. 3f. Stream impact Type of Stream name Perennial (PER) or Average stream width (feet) Impact number - impact intermittent (INT)? length Permanent (P) or (linear feet) Temporary (T) S1 ®P ? T Rip rap Perennial RPW Stream A ® PER ? INT 12 10 S2 ? P ® T Coffer dam Perennial RPW Stream A ® PER ? INT 15 8 S3 ? P ? T ? PER ? INT S4 ?P?T ?PER ?INT S5 ? P ? T ? PER ? INT S6 ? P ? T ? PER ? INT 3g. Total stream and tributary impacts 18 3h. Comments: Permanent Impacts to Seasonal RPW Stream A total 10 If (0.003 acre) Page 5 of 13 PCN Form - Version 1.0 November 2008 Version Page 6 of 13 PCN Form - November 2008 Version C. Proposed Impacts Inventory, continued C. Proposed Impacts Inventory, continued 5. Pond or Lake Construction If and or lake construction pro osed, then complete the chart below. 5a. 5b. 5c. 5d. 5e. Pond ID Proposed use or Wetland Impacts (acres) Stream Impacts (feet) Upland number (acres) purpose of pond 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: 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 an impacts require mitigation, then ou MUST fill out Section D of this form. 6a. ? Neuse ? Tar-Pamlico ? Other: Project is in which protected basin? ? Catawba ? Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Permanent (P) Reason for impact Stream name Buffer mitigation Zone 1 impact (square feet) Zone 2 impact (square feet) or Temporary required? T B1 ?P?T ?Yes ?No B2 ?P?T ?Yes ?No B3 ?P?T ?Yes ?No 6h. Total buffer impacts 6i. Comments: Page 7 of 13 PCN Form - November 2008 Version D. Impact Justification and Mitigation 1. Avoidance and Minimization 1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Impacts to on-site jurisdictional waters of the U.S. have been reduced to the maximum extent practicable. Permanent impacts have been limited to 10 If of rip-rap apron and the net loss of 0.036 acre of wetlands due to dredging. There is no piping of culverting proposed. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Impacts to on-site jurisdictional waters of the U.S. have been reduced to the maximum extent practicable. Proper sediment and erosion control measures will be used to minimize disturbances to downstream waters. All work will be constructed in the dry in accordance with Water Quality Certification No. 3687. All dredge material will be disposed of in an appropriate upland location. 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 El 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 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. Page 8 of 13 PCN Form - Version 1.0 November 2008 Version D. Impact Justification and Mitigation, continued 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 Reason for impact Total impact (square feet) Multiplier Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 Total buffer mitigation required: 6c. 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). 6d. Comments: Page 9 of 13 PCN Form - November 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 ? Yes ® No within one of the NC Riparian Buffer Protection Rules? 1 b. If yes, then is a diffuse flow plan included? ? Yes ? No 2. Determination if the Project Requires a Stormwater Management Plan 2a. Does the project require a Non-404 Jurisdictional General Permit? ? Yes ® No 2b. Is the project subject to General Certification 3704 or 3705? ? Yes ® No 3. Determination of Stormwater Review Jurisdiction 3a. Is this project subject to any of the following state-implemented stormwater ? Coastal counties management programs (check all that apply)? ? HQW If so, attach one copy of the approval letter from the DWQ and one copy of the ? ORW ? Session Law 2006-246 approved stormwater management plan. ? Other: 3b. In which local government's jurisdiction is this project? City of Charlotte 3c. Is this local government certified to implement a state stormwater program? ® Yes ? No If so, attach one copy of the approval letter from the local government and one copy of the approved stormwater management plan (or one copy of the approved Stormwater management plan stamped as approved). 4. Information Required for DWQ 401 Unit Stormwater Review 4a. What is the overall percent imperviousness according to the most current site plan? `20% - No change in impervious percent 4b. Does this project contain any areas that meet the criteria for "high density" per ? Yes ® No General Certifications 3704 and 3705? 4c. If the site is over 24% impervious and/or contains high density areas, then provide a brief narrative description of the stormwater management plan. 4d. Has a completed BMP Supplement Form with all required items been submitted for each stormwater BMP? ? Yes ® No Page 10 of 13 PCN Form - Version 1.0 November 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No use of public (federal/state) land? 1 b. 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 ? Yes ® No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1 c. 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.) ? Yes ? No Comments: 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, ? Yes ® No or Riparian Buffer Rules (15A NCAC 2B .0200)? 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 ? Yes ® No additional development, which could impact nearby downstream water quality? 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. 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. N/A Page 11 of 13 PCN Form - Version 1.0 November 2008 Version F,, Supplementary Information, continued 'S. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or Yes ? No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act Yes ? No impacts? 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 letter was forwarded to the North Carolina Natural Heritage Program (NCNHP) on May 20, 2010 to determine the presence of any federally-listed, candidate endangered, threatened species or critical habitat located within the project area. Ina response letter date May 27, 2010, the NCNHP stated that "The Natural Heritage Program has no record of rare species, significant natural communities, or significant natural heritage areas at the site nor within a mile of the project area. There is a conservation area located about 0.12-mile to the north of the project site - a 22.38-acre tract owned as a preserve by the Catawba Land Conservancy. It is located on the eastern side of Brier Creek. However, as Brier Creek flows to the south, and as the project site is located south (downstream) of the preserve, construction at the pond and vicinity is not expected to impact conservation land." 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? NOAA Fisheries: http://sharpfin.nmfs.noaa.gov/website/EFH_Mapper/map.aspx 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 ? Yes ® No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? A letter was forwarded to the State Historic Preservation Office (SHPO) on May 20, 2010 to determine the presence of any areas of architectural, historic, or archaeological significance that would be affected by the project. As of the date of this submittal, a response from SHPO has not yet been received. The project is located in a residential subdivision. CWS consulted the Charlotte Mecklenburg Historic Landmarks Commission database and found no listed properties within the project area. 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: This project will not result in any rise in flood elevation. The only action being undetaken within the floodplain is the installation of a rip rap apron which will be intalled flush with the existing grade of the stream bed. 8c. What source(s) did you use to make the floodplain determination? FEMA FIRM Map No. 3710455200J Page 12 of 13 PCN Form - November 2008 Version F. Supplementary Information, continued c Isaac Hinson, PWS Wetland Specialist _ 06/08/10 Applicant/Agent's Signature Applicant/Agent's Printed Name (Agent's signature is valid only if an authorization letter from the applicant Date is provided.) Page 13 of 13 PCN Form - November 2008 Version North Carolina Division of Water Quality - Stream Identification Form; Version 3.1 Date: 05/12/2010 Project: Stonebridge Pond Latitude: N35.1838400 Evaluator:TJB & GCA Site: SCP1 Longitude: W80.8161480 Total Points: Perennial RPW Stream A Stream is at least intermittent County: Other ifs 19 or perennial if i' 30 42.50 Mecklenburg e.g. Quad Name: A. Geomorphology (Subtotal = 22.0 Absent Weak Moderate Strong 18. Continuous bed and bank 3.0 0 1 2 3 2. Sinuosity 0.0 0 1 2 3 3. In-channel structure: riffle-pool sequence 2.0 0 1 2 3 4. Soil texture or stream substrate sorting 3.0 0 1 2 3 5. Active/relic floodplain 3.0 0 1 2 3 6. Depositional bars or benches 2.0 0 1 2 3 7. Braided channel 0.0 0 1 2 3 8. Recent alluvial deposits 2.0 0 1 2 3 9 8 Natural levees 2.0 0 1 2 3 10. Headcuts 0.0 0 1 2 3 11. Grade controls 0.5 0 0.5 1 1.5 12. Natural valley or drainageway 1.5 0 0.5 1 1.5 13. Second or greater order channel on existing USGS or NRCS map or other documented evidence. 3.0 No= 0 Yes= 3 man-maue ununes are not ratea; see ciscusslons in manual B. Hvdroloov (Subtotal = 10.0 1 14. Groundwater flow(discharge 3.0 0 1 2 3 15. Water in channel and > 48 hrs since rain. or Water in channel -- d or growing season 3.0 0 1 2 3 16. Leaflitter 1.5 1.5 1 0.5 0 17. Sediment on plants or debris 0.0 0 0.5 1 1.5 18. Organic debris lines or piles (Wrack lines) 1.0 0 0.5 1 1.5 19. Hydric soils (redoximorphic features) present?1.5 No = 0 Yes = 1.5 C. Bioloav (Subtotal= 10.50 1 20 . Fibrous roots in channel 3.0 3 2 1 0 21 . Rooted plants in channel 3.0 3 2 1 0 22. Crayfish 0.5 0 0.5 1 1.5 23. Bivalves 0.0 0 1 2 3 24. Fish 0.5 0 0.5 1 1.5 25. Amphibians 1.0 0 0.5 1 1.5 26. Macrobenthos (note diversity and abundance) 0.5 0 0.5 1 1.5 27. Filamentous algae; periphyton 2.0 0 1 2 3 28. Iron oxidizing bacterialfungus. 0.0 0 0.5 1 1.5 29 °. Wetland plants in streambed 0.00 FAC = 0.5; FACW = 0.75; OBL = 1.5 SAV = 2.0; Other = 0 n-I. <v ... < Iww vii 111c pluavnuu Ui upianu prams, item zu Tocuses on the presence oT aquatic or wetland plants. Sketch: Notes: (use back side of this form for additional notes.) North Carolina Division of Water Quality - Stream Identification Form; Version 3.1 Date: 05/12/2010 Project: Stonebridge Pond Latitude: N35.1838400 Evaluator:TJB & GCA Site: SCP2 Longitude: W80.8161480 Total Points: Perennial RPW Stream A Stream is at least intermittent County' Outer rtz 19 or perennial if 2 30 3 8.50 Mecklenburg e.g. Quad Name: A. Geomorphology (Subtotal = 19.0 ) Absent Weak Moderate Strong 18. Continuous bed and bank 3.0 0 1 2 3 2. Sinuosity 1.0 0 1 2 3 3. In-channel structure: riffle-pool sequence 2.0 0 1 2 3 4. Soil texture or stream substrate sorting 2.0 0 1 2 3 5. Active/relic floodplain 2.0 0 1 2 3 6. Depositional bars or benches 2.0 0 1 2 3 7. Braided channel 0.0 0 1 2 3 8. Recent alluvial deposits 1.0 0 1 2 3 9 a Natural levees 0.0 0 1 2 3 10. Headcuts 0.0 0 1 2 3 11. Grade controls 1.5 0 0.5 1 1.5 12. Natural valley or drainageway 1.5 0 0.5 1 1.5 13. Second or greater order channel on existing USGS or NRCS map or other documented evidence. 3.0 No = 0 Yes = 3 man-maae artcnes are not ratea: see aiscussions in manual B. Hvdroloov (Suhtotal = 9.0 1 14. Groundwater flow(discharge 2.0 0 1 2 3 15. Water in channel and > 48 hrs since rain, or Water in channel -- d or growing season 3.0 0 1 2 3 16. Leaflitter 1.5 1.5 1 0.5 0 17. Sediment on plants or debris 0.0 0 0.5 1 1.5 18. Organic debris lines or piles (Wrack lines) 1.0 0 0.5 1 1.5 19. Hydric soils (redoximorphic features) present?1.5 No = 0 Yes= 1.5 C. Biolociv (Subtotal = 10.50 1 20t'. Fibrous roots in channel 3.0 3 2 1 0 21 . Rooted plants in channel 3.0 3 2 1 0 22. Crayfish 0.5 0 0.5 1 1.5 23. Bivalves 0.0 0 1 2 3 24. Fish 0.0 0 0.5 1 1.5 25. Amphibians 1.0 0 0.5 1 1.5 26. Macrobenthos (note diversity and abundance) 0.0 0 0.5 1 1.5 27. Filamentous algae; periphyton 3.0 0 1 2 3 28. Iron oxidizing bacteria/fungus- 0.0 0 0.5 1 1.5 29 ). Wetland plants in streambed 0.00 FAC = 0.5; FACW = 0.75; OBL = 1.5 SAV = 2.0; Other = 0 ?LOl I IJ ?V ui iu z I iun:us LAI uie presence of uprana plants, uem za tocuses on the presence of aquatic or wetland plants. Sketch: Notes: (use back side of this form for additional notes.) OFFICE USE ONLY: USACE AID# DWQ # i SCP1- Perennial RPW Stream A STREAM QUALITY ASSESSMENT WORKSHEET AQP 1. Applicant's Name: City of Charlotte Stormwater Services 2. Evaluator's Name: Thomas Blackwell and Gregg Antemann 3. Date of Evaluation: 5/12/10 4. Time of Evaluation: 3:30 pm 5. Name of Stream: UT to Brier Creek 6. River Basin: Catawba 7. Approximate Drainage Area: 380 acres 8. Stream Order: second Length of Reach Evaluated: 1001f 10. County: Mecklenburg 11. Location of reach under evaluation (include nearby roads and landmarks): From Interstate 485 take the Providence Road exit, Exit 57 and turn onto NC 16 North (Providence Road). Travel approximately 9.4 miles and turn right onto Vernon Drive. Travel approximately 0.1 mile and turn left onto Stonebridge Drive. The site is located 0.2 mile down Stonebridge lane. 12. Site Coordinates (if known): N35.183840 °. W80.816148 ° 13. Proposed Channel Work (if any): N/A 14. Recent Weather Conditions: Sunny 80 degrees 15. Site conditions at time of visit: Sunnv 85 decrees 16. Identify any special waterway classifications known: -Section 10 -Tidal Waters -Essential Fisheries Habitat Trout Waters -Outstanding Resource Waters Nutrient Sensitive Waters -Water Supply Watershed (I-IV) 17. Is there a pond or lake located upstream of the evaluation point?(D NO If yes, estimate the water surface area: 1.86 acres 18. Does channel appear on USGS quad map? (D NO 19. Does channel appear on USDA Soil Survey??) NO 20. Estimated Watershed Land Use: 100 % Residential % Commercial % Industrial _% Agricultural % Forested % Cleared / Logged % Other ( ) 21. Bankfull Width: 10 to 15' 22. Bank Height (from bed to top of bank): 2' 23. Channel slope down center of stream: -Flat (0 to 2%) X Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (>10%) 24. Channel Sinuosity: Straight X Occasional Bends -Frequent Meander -Very Sinuous -Braided Channel Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of 100 representing a stream of the highest quality. Total Score (from reverse): 64 Comments: Evaluator's Signature e10 Qa Date 5/12/10 This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a particular mitigation ratio or requirement. Form subject to change - version 05/03. To Comment, please call 919-876-8441 x 26. STREAM QUALITY ASSESSMENT WORKSHEET SCP1- Perennial RPW Stream A # CHARACTERISTICS ECOREGION POIN T RANGE SCORE Coastal Piedmont Mountain 1 Presence of flow / persistent pools in stream 0-5 0-4 0-5 4 no flow or saturation = 0; strong flow = max points) 2 Evidence of past human alteration 0-6 0-5 0-5 2 extensive alteration = 0; no alteration = max points) 3 Riparian zone 0-6 0-4 0-5 2 no buffer = 0; contiguous, wide buffer = max points) 4 Evidence of nutrient or chemical discharges extensive discharges = 0; no discharges = max oints 0-5 0-4 0-4 2 „a 5 Groundwater discharge 0-3 0-4 0-4 4 U no discharge = 0; springs, seeps, wetlands, etc. = max points) 6 Presence of adjacent floodplain 0- 4 0- 4 0- 2 3 no flood lain = 0; extensive flood lain = max points) a Entrenchment / floodplain access (deeply entrenched = 0; frequent flooding = max points) 0- 5 0- 4 0- 2 4 8 Presence of adjacent wetlands j 0-6 0-4 0-2 3 no wetlands = 0; large ad acent wetlands = max points) 9 Channel sinuosity 0-5 0-4 0-3 1 extensive channelization = 0; natural meander = max points) 10 Sediment input 0-5 0-4 0-4 3 extensive deposition= 0; little or no sediment = max points) 11 Size & diversity of channel bed substrate * fine, homogenous = 0; large, diverse sizes = max points) NA 0-4 0-5 3 12 Evidence of channel incision or widening H (deeply incised = 0; stable bed & banks = max points) 0-5 0-4 0-5 3 13 Presence of major bank failures severe erosion = 0; no erosion, stable banks = max points) 0-5 0-5 0-5 4 14 Root depth and density on banks 0-3 0-4 0-5 4 no visible roots = 0; dense roots throughout = max points) 15 Impact by agriculture or livestock production substantial impact =0; no evidence = max points) 0-5 0-4 0-5 4 16 Presence of riffle-pool/ripple-pool complexes no riffles/ripples or pools = 0; well-developed = max points) 0-3 0-5 0-6 3 d 1 Habitat complexity 0-6 0-6 0-6 3 little or no habitat = 0; frequent, varied habitats = max points) 18 Canopy coverage over streambed 0-5 0-5 0 5 4 no shading vegetation = 0; continuous canopy = max points) - 19 Substrate embeddedness * (deeply embedded = 0; loose structure = max NA 0-4 0-4 2 20 Presence of stream invertebrates { no evidence = 0; common, numerous types = max points) 0-4 0-5 0-5 2 21 Presence of amphibians O no evidence = 0; common, numerous types = max points) 0-4 0-4 0-4 2 O 22 Presence offish 0-4 0-4 0-4 1 no evidence = 0; common, numerous types = max points) 23 Evidence of wildlife use no evidence = 0; abundant evidence = max points) 0-6 0-5 0-5 1 Total Points Possible 100 100 100 TOTAL SCORE (also enter on first page) 64 iiiwc %,nalal.tciiJLB b aiC llVl aSSCSSCU in coastal streams. OFFICE USE ONLY: USACE AID# DWQ # SCP2 - Perennial RPW Stream A ' f STREAM QUALITY ASSESSMENT WORKSHEET 1. Applicant's Name: City of Charlotte Stormwater Services 2. Evaluator's Name: Thomas Blackwell and Gregg Antemann 3. Date of Evaluation: 5/12/10 5. Name of Stream: UT to Brier Creek 7. Approximate Drainage Area: 380 acres 4. Time of Evaluation: 4:30 pm 6. River Basin: Catawba 8. Stream Order: second 9. Length of Reach Evaluated: 1001f 10. County: Mecklenburg 11. Location of reach under evaluation (include nearby roads and landmarks): From Interstate 485 take the Providence Road exit Exit 57 and turn onto NC 16 North (Providence Road). Travel approximately 9.4 miles and turn right onto Vernon Drive Travel approximately 0.1 mile and turn left onto Stonebridge Drive The site is located 0.2 mile down Stonebridge lane 12. Site Coordinates (if known): N35.183840 °, W80.816148 ° 13. Proposed Channel Work (if any): N/A 14. Recent Weather Conditions: Sunnv 80 degrees 15. Site conditions at time of visit: Sunny 85 degrees 16. Identify any special waterway classifications known: -Section 10 -Tidal Waters -Essential Fisheries Habitat -Trout Waters -Outstanding Resource Waters Nutrient Sensitive Waters -Water Supply Watershed (I-IV) 17. Is there a pond or lake located upstream of the evaluation point?(D NO If yes, estimate the water surface area: 3.34 acres 18. Does channel appear on USGS quad map?G) NO 19. Does channel appear on USDA Soil Survey?(E) NO 20. Estimated Watershed Land Use: 100 % Residential % Commercial _% Industrial _% Agricultural % Forested _% Cleared / Logged % Other 21. Bankfull Width: 8 to 10' 22. Bank Height (from bed to top of bank): 6-7' 23. Channel slope down center of stream: X Flat (0 to 2%) -Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (> 10%) 24. Channel Sinuosity: Straight X Occasional Bends -Frequent Meander -Very Sinuous Braided Channel Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of 100 representing a stream of the highest quality. Total Score (from reverse): 50 Comments: Evaluator's Signatures 10 4?Ld Date 5/12/10 This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a particular mitigation ratio or requirement. Form subject to change - version 05/03. To Comment, please call 919-876-8441 x 26. STREAM QUALITY ASSESSMENT WORKSHEET SCP2 - Perennial RPW Stream A # ECOREGION POIN T RANGE CHARACTERISTICS SCORE Coastal Piedmont Mountain 1 Presence of flow / persistent pools in stream 0-5 0-4 0-5 3 no flow or saturation = 0; strong flow = max points) 2 Evidence of past human alteration 0-6 0-5 0-5 2 extensive alteration = 0; no alteration = max points) 3 Riparian zone 0-6 0-4 0-5 3 no buffer = 0; contiguous, wide buffer = max points) 4 Evidence of nutrient or chemical discharges 0-5 0-4 0-4 2 extensive discharges = 0; no discharges = max oints ,.? 5 Groundwater discharge 0-3 0-4 0-4 2 U no discharge = 0; springs, seeps, wetlands, etc. = max points) 6 Presence of adjacent floodplain 0- 4 0- 4 0- 2 4 no flood lain = 0• extensive flood lain = max points) a Entrenchment / floodplain access 0- 5 0- 4 0- 2 1 (deeply entrenched = 0; frequent flooding = max points) 8 Presence of adjacent wetlands j 0-6 0-4 0-2 2 no wetlands = 0; large ad acent wetlands = max points) 9 Channel sinuosity 0-5 0-4 0-3 1 extensive channelization = 0; natural meander = max points) 10 Sediment input 0-5 0-4 0-4 3 extensive deposition= 0; little or no sediment = max points) 11 Size & diversity of channel bed substrate NA* 0-4 0-5 2 fine, homogenous = 0; large, diverse sizes = max points) 12 Evidence of channel incision or widening 0-5 0-4 0-5 1 (deeply incised = 0; stable bed & banks = max points) ?. 13 Presence of major bank failures 0-5 0-5 0-5 2 severe erosion = 0; no erosion, stable banks = max points) 14 Root depth and density on banks 0-3 0-4 0-5 2 H no visible roots = 0; dense roots throughout = max points) 15 Impact by agriculture or livestock production 0-5 0-4 0-5 3 substantial impact =0; no evidence = max points) 16 Presence of riffle-pool/ripple-pool complexes 0-3 0-5 0-6 4 no riffles/ripples or pools = 0; well-developed = max points) d 1 Habitat complexity 0-6 0-6 0-6 2 little or no habitat = 0; frequent, varied habitats = max points) 18 Canopy coverage over streambed 0- 5 0- 5 0- 5 3 x no shading vegetation = 0; continuous canopy = max oints 19 Substrate embeddedness NA* 0- 4 0- 4 2 (deeply embedded = 0; loose structure = max 20 Presence of stream invertebrates 0-4 0-5 0-5 1 no evidence = 0; common, numerous types = max points) 21 Presence of amphibians 0-4 0-4 0-4 3 O no evidence = 0; common, numerous types = max points) O 22 Presence offish 0-4 0-4 0-4 1 no evidence = 0; common, numerous types = max points) 23 Evidence of wildlife use 0-6 0-5 0-5 1 no evidence = 0; abundant evidence = max points) Total Points Possible 100 100 100 TOTAL SCORE (also enter on first page) 50 i nese characteristics are not assessed m coastal streams. DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Stonebrid a Pond Date: 05/12/10 Applicant/Owner: City of Charlotte Stormwater Services County: Mecklenburg Investigator(s): TJB + GCA State: NC Do Normal Circumstances exist on the site? Yes No Community ID: Wetlan Is the site significantly disturbed (Atypical Situation)? Yes No Transect ID: AA - C Is the area a potential Problem Area? Yes No Plot ID: DPI (If needed, explain on reverse.) VEGETATION Dominant Plant S ecies 1 Fraxinuspennsylvanica Stratum Indicator Tree FACW Dominant Plant Species Stratum Indicator 9 Boehmeriacylindrica Herb FACW+ 2 Acernegundo Tree FACW 10 3 Cornus amomum Shrub FACW+ 11 4 Physocarpus opulifolius Shrub FACW- 12 5 Glyceria striata Herb OBL 13 6 Impatiens capensis Herb FACW 14 7 Rumex crispus Herb FAC 15 8 Carex lurida Herb OBL 16 Percent of Dominant Species that are OBL, FACW or FAC 100% Remarks: 100% of the dominant plant species are FAC or wetter. HYDROLOGY Recorded Data (Describe in remarks): Stream, Lake or Tide Gauge Aerial Photographs Other X No Recorded Data Available Wetland Hydrology Indicators: Primary Indicators: Inundated X Saturated in Upper 12 Inches Water Marks Drift Lines Field Observations: _ Sediment Deposits (on leaves) X Drainage Patterns in Wetlands Depth of Surface Water: 0 - 1" (in.) Secondary Indicators (2 or more required): Oxidized Root Channels in Upper 12 Inches Depth to Free Water in Pit: 4" (in.) X Water-Stained Leaves Local Soil Survey Data Depth to Saturated Soil: 0" (in.) X FAC-Neutral Test Other (Explain in Remarks) Remarks: Indicators of wetland hvdrolou are present. 11 1 Routine On-Site Data Forms.xls Page 1 of 4 5/25/2010 SOILS Map Unit Name (Series and Phase): Enon sandy loam. 8-15% slopes (EnD) Drainage Class well drained Field Observations Taxonomy (Subgroup): thermic Ultic Ha ludalfs Confirm Mapped Type? Ye No Profile Descri tion: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc. 0-3 A 10YR 311 10YR 3/3 Many/Faint Silt loam 3-8 B 2.5Y 3/1 10YR 3/3 Few/Faint Silt loam 8-12+" B 2.5Y 311 10YR 3/3 Few/Faint Sand silt loam Histosol Concretions Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils Sulfidic Odor Organic Streaking in Sandy Soils Aquic Moisture Regime _ Listed on Local Hydric Soils List (Inclusions) Reducing Conditions Listed on National Hydric Soils List X Gleyed or Low-Chroma Colors Other (Explain in Remarks) Remarks: Indicators of hydric soils are present. WETLAND DETERMINATION Hydrophytic Vegetation Present? Yes No (Circle) Wetland Hydrology Present? Ye No (Circle) Hydric Soils Present? Ye No Is this Sampling Point Within a Wetland? Ye No Remarks: Data point is representative of a jurisdictional wetland area. 1 11 Approved by HQUSACE 2192 Routine On-Site Data Forms.xis Page 2 of 4 5/25/2010 DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Stonebrid a Pond Date: 05/12/10 Applicant/Owner: City of Charlotte Stormwater Services County: Mecklenburg Investigator(s): TJB + GCA State: NC Do Normal Circumstances exist on the site? Yes No Community ID: U land Is the site significantly disturbed (Atypical Situation)? Yes No Transect ID: Is the area a potential Problem Area? Yes No Plot ID: DP2 (If needed, explain on reverse.) VEGETATION Dominant Plant Specie s 1 Liriodendron tulipifera Stratum Indicator Sap FAC Dominant Plant Species Stratum Indicator 9 2 Acer rubrum Sap FACU 10 3 Quercus alba Sap FAC 11 4 Toxicodendron radicans Herb FAC+ 12 5 Smilax rotundifolia Herb FAC 13 6 Vitis rotundifolia Shrub FAC 14 7 Arisaema triphyllum Herb FACW- 15 8 Carex sp. Herb N/A 16 Percent of Dominant Species that are OBL, FACW or FAC 85% Remarks: More than 50% of the dominant plant species are FAC or wetter. HYDROLOGY Recorded Data (Describe in remarks): Stream, Lake or Tide Gauge Aerial Photographs Other X No Recorded Data Available Wetland Hydrology Indicators: Primary Indicators: Inundated Saturated in Upper 12 Inches Water Marks Drift Lines Field Observations: Sediment Deposits (on leaves) Drainage Patterns in Wetlands Depth of Surface Water: N/A (in.) Secondary Indicators (2 or more required): Oxidized Root Channels in Upper 12 Inches Depth to Free Water in Pit: > 18 (in.) Water-Stained Leaves Local Soil Survey Data Depth to Saturated Soil: > 18 (in.) FAC-Neutral Test Other (Explain in Remarks) Remarks: No Indicators of wetland hydroloU 11 are present. 1 Routine On-Site Data Forms.xis Page 3 of 4 5/25/2010 SOILS Map Unit Name (Series and Phase): Monacan soils (Mo) Drainage Class somewhat Poorly drained Field Observations Taxonomy (Subgroup): thermic Fluva uentic Eutrochre is Confirm Mapped Type? Yes No Profile Description: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc. 0-12 B 2.5Y 5/3 n/a N/A Sand silt loam Histosol Concretions Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils Sulfidic Odor Organic Streaking in Sandy Soils Aquic Moisture Regime X Listed on Local Hydric Soils List (Inclusions) Reducing Conditions _ Listed on National Hydric Soils List Gleyed or Low-Chroma Colors Other (Explain in Remarks) Remarks: No indicators of hydric soils are present. WETLAND DETERMINATION Hydrophytic Vegetation Present? Yes No (Circle) Wetland Hydrology Present? Yes No (Circle) Hydric Soils Present? Yes No Is this Sampling Point Within a Wetland? Yes No Remarks: Data point is representative of a non-jurisdictional upland area. Approved by HQUSACE 2/92 Routine On-Site Data Forms.xls Page 4 of 4 5/25/2010 APPROVED JURISDICTIONAL DETERMINATION FORM U.S. Army Corps of Engineers This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook. SECTION I: BACKGROUND INFORMATION A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): May 24, 2010 B. DISTRICT OFFICE, FILE NAME, AND NUMBER:Asheville Field Office C. PROJECT LOCATION AND BACKGROUND INFORMATION: Perennial Stream A, Pond A, and Wetlands AA &BB State:NC County/parish/borough: Mecklenburg City: Charlotte Center coordinates of site (lat/long in degree decimal format): Lat. 35.183840 ° R, Long. 80.816148 ° . Universal Transverse Mercator: Name of nearest waterbody: Brier Creek Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: Catawba River Name of watershed or Hydrologic Unit Code (HUC): Yadkin (HU# 03050103) I" Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request. Check if other sites (e.g., offsite mitigation sites, disposal sites, etc... ) are associated with this action and are recorded on a different JD form. D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY): f" Office (Desk) Determination. Date: May 24, 2010 Field Determination. Date(s): May 12, 2010 SECTION II: SUMMARY OF FINDINGS A. RHA SECTION 10 DETERMINATION OF JURISDICTION. There Are nd "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the review area. [Required] 0 Waters subject to the ebb and flow of the tide. Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce. Explain: B. CWA SECTION 404 DETERMINATION OF JURISDICTION. There Are ,waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required] 1. Waters of the U.S. a. Indicate presence of waters of U.S. in review area (check all that apply): ' ? TNWs, including territorial seas ? Wetlands adjacent to TNWs ® Relatively permanent waters2 (RPWs) that flow directly or indirectly into TNWs ? Non-RPWs that flow directly or indirectly into TNWs 0 Wetlands directly abutting RPWs that flow directly or indirectly into TNWs ? Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs ? Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs ® Impoundments of jurisdictional waters ? Isolated (interstate or intrastate) waters, including isolated wetlands b. Identify (estimate) size of waters of the U.S. in the review area: Non-wetland waters: 268 linear feet: 15width (ft) and/or 1.55 acres. Wetlands: 0.165 acres. c. Limits (boundaries) of jurisdiction based on: t987 Delineation Manual Elevation of established OHWM (if known): 2. Non-regulated waters/wetlands (check if applicable):3 [] Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional. Explain: ' Boxes checked below shall be supported by completing the appropriate sections in Section III below. i For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally" (e.g., typically 3 months). 3 Supporting documentation is presented in Section III.F. SECTION III: CWA ANALYSIS A. TNWs AND WETLANDS ADJACENT TO TNWs The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete Section III.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2 and Section III.D.L; otherwise, see Section III.B below. 1. TNW Identify TNW: Summarize rationale supporting determination: 2. Wetland adjacent to TNW Summarize rationale supporting conclusion that wetland is "adjacent": B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY): This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps determine whether or not the standards for jurisdiction established under Rapanos have been met. The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3 months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round (perennial) flow, skip to Section III.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow, skip to Section III.D.4. A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and EPA regions will include in the record any available information that documents the existence of a significant nexus between a relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even though a significant nexus finding is not required as a matter of law. If the waterbody° is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for the tributary, Section III.B.2 for any onsite wetlands, and Section III.B.3 for all wetlands adjacent to that tributary, both onsite and offsite. The determination whether a significant nexus exists is determined in Section III.C below. 1. Characteristics of non-TNWs that flow directly or indirectly into TNW (i) General Area Conditions: Watershed size: square miles Drainage area: acres Average annual rainfall: inches Average annual snowfall: inches (ii) Physical Characteristics: (a) Relationship with TNW: ? Tributary flows directly into TNW. ? Tributary flows through Fick List tributaries before entering TNW. Project waters are Pick List river miles from TNW. Project waters are Pick List river miles from RPW. Project waters are Pick List aerial (straight) miles from TNW. Project waters are Pick List aerial (straight) miles from RPW. Project waters cross or serve as state boundaries. Explain: Identify flow route to TNW5: Seasonal RPW flows to Perennial RPW flows to TNW (McAlpine Creek). Tributary stream order, if known: first. `Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and West. s Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW. (b) General Tributary Characteristics (check all that apply): Tributary is: ? Natural ? Artificial (man-made). Explain: ? Manipulated (man-altered). Explain: Tributary properties with respect to top of bank (estimate): Average width: feet Average depth: feet Average side slopes: Pick List. Primary tributary substrate composition (check all that apply): ? Silts ? Sands ? Concrete ? Cobbles ? Gravel ? Muck ? Bedrock ? Vegetation. Type/0% cover: ? Other. Explain: Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: Presence of run/riffle/pool complexes. Explain: Tributary geometry: Pick List Tributary gradient (approximate average slope): % (c) Flow: Tributary provides for: Pick List Estimate average number of flow events in review area/year: Pick List Describe flow regime: discrete and confined. Other information on duration and volume: Surface flow is: Pick List. Characteristics: Subsurface flow: Pick List. Explain findings: ? Dye (or other) test performed: hydric soil indicators. Tributary has (check all that apply): ? Bed and banks ? OHWM6 (check all indicators that apply): ? clear, natural line impressed on the bank ? ? changes in the character of soil ? ? shelving ? ? vegetation matted down, bent, or absent ? ? leaf litter disturbed or washed away ? ? sediment deposition ? ? water staining ? ? other (list): ? Discontinuous OHWM.7 Explain: If factors other than the OHWM were used to determ ? High Tide Line indicated by: ? oil or scum line along shore objects ? fine shell or debris deposits (foreshore) ? physical markings/characteristics ? tidal gauges ? other (list): the presence of litter and debris destruction of terrestrial vegetation the presence of wrack line sediment sorting scour multiple observed or predicted flow events abrupt change in plant community ine lateral extent of CWA jurisdiction (check all that apply): Mean High Water Mark indicated by: ? survey to available datum; ? physical markings; ? vegetation lines/changes in vegetation types. (iii) Chemical Characteristics: Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.). Explain: clear water, watershed is wooded. Identify specific pollutants, if known: 6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break. 'Ibid. (iv) Biological Characteristics. Channel supports (check all that apply): ? Riparian corridor. Characteristics (type, average width): ? Wetland fringe. Characteristics: ? Habitat for: ? Federally Listed species. Explain findings: ? Fish/spawn areas. Explain findings: ? Other environmentally-sensitive species. Explain findings: ? Aquatic/wildlife diversity. Explain findings: amphibian habitat. 2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW (i) Physical Characteristics: (a) General Wetland Characteristics: Properties: Wetland size: acres Wetland type. Explain: Wetland quality. Explain: . Project wetlands cross or serve as state boundaries. Explain: (b) General Flow Relationship with Non-TNW: Flow is: Pick List. Explain: wetland is abutting intermittent stream. Surface flow is: Pick List Characteristics: strong surface flow. Subsurface flow: Pick List. Explain findings: N/A. ? Dye (or other) test performed: (c) Wetland Adjacency Determination with Non-TNW: ? Directly abutting ? Not directly abutting ? Discrete wetland hydrologic connection. Explain: ? Ecological connection. Explain: ? Separated by berm/barrier. Explain: (d) Proximity (Relationship) to TN Project wetlands are Pick List river miles from TNW. Project waters are Pick List aerial (straight) miles from TNW. Flow is from: Pick List. Estimate approximate location of wetland as within the Pick List floodplain. (ii) Chemical Characteristics: Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed characteristics; etc.). Explain: Identify specific pollutants, if known: (iii) Biological Characteristics. Wetland supports (check all that apply): ? Riparian buffer. Characteristics (type, average width): . ? Vegetation type/percent cover. Explain:. . ? Habitat for: ? Federally Listed species. Explain findings: ? Fish/spawn areas. Explain findings: ? Other environmentally-sensitive species. Explain findings: ? Aquatic/wildlife diversity. Explain findings: 3. Characteristics of all wetlands adjacent to the tributary (if any) All wetland(s) being considered in the cumulative analysis: Picle List Approximately ( ) acres in total are being considered in the cumulative analysis. 4 For each wetland, specify the following: Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres) Summarize overall biological, chemical and physical functions being performed: C. SIGNIFICANT NEXUS DETERMINATION A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW. Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or outside of a floodplain is not solely determinative of significant nexus. Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and discussed in the Instructional Guidebook. Factors to consider include, for example: • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW? • Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW? • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that support downstream foodwebs? • Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or biological integrity of the TNW? Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented below: 1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D: 2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section III.D: 3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section III.D: A non jurisdictional swale provides an unbroken surface water connection to Jurisdictional Wetland AA which directly abutts Perennial RPW Stream A. D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERSIWETLANDS ARE (CHECK ALL THAT APPLY): 1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area: ? TNWs: linear feet width (ft), Or, acres. Wetlands adjacent to TNWs: acres. 2. RPWs that flow directly or indirectly into TNWs. Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that tributary is perennial: Strong flow, strong substrate sorting, strong groundwater discharge, fish, crayfish. ? Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows seasonally: Provide estimates for jurisdictional waters in the review area (check all that apply): 0 Tributary waters: 278 linear feet width (ft). 19 Other non-wetland waters: 1.48acres. Identify type(s) of waters: Pond A is an impoundment of Perennial RPW Stream A. Non-RPWss that flow directly or indirectly into TNWs. Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a TNW is jurisdictional. Data supporting this conclusion is provided at Section III.C. Provide estimates for jurisdictional waters within the review area (check all that apply): Q Tributary waters: linear feet width (ft). Q Other non-wetland waters: acres. Identify type(s) of waters: Wetlands directly abutting an RPW that flow directly or indirectly into TNWs. Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands. EJ Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is directly abutting an RPW: Wetlands AA, BB, and CC have a continuous hydrological connection with Perennial RPW Stream A. ? Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary seasonal in Section 111.13 and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly abutting an RPW: Provide acreage estimates for jurisdictional wetlands in the review area: 0.165 acres. 5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs. ? Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this conclusion is provided at Section III.C. Provide acreage estimates for jurisdictional wetlands in the review area: acres. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs. Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this conclusion is provided at Section III.C. Provide estimates for jurisdictional wetlands in the review area: acres. Impoundments of jurisdictional waters.9 As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional. ® Demonstrate that impoundment was created from "waters of the U. S.," or ? Demonstrate that water meets the criteria for one of the categories presented above (1-6), or Demonstrate that water is isolated with a nexus to commerce (see E below). n E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE, DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY SUCH WATERS (CHECK ALL THAT APPLY):" which are or could be used by interstate or foreign travelers for recreational or other purposes. ? from which fish or shellfish are or could be taken and sold in interstate or foreign commerce. ? which are or could be used for industrial purposes by industries in interstate commerce. ? Interstate isolated waters. Explain: ? Other factors. Explain: 'See Footnote # 3. 9 To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook. 10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos. Identify water body and summarize rationale supporting determination: Provide estimates for jurisdictional waters in the review area (check all that apply): [; Tributary waters: linear feet width (ft). Q Other non-wetland waters: acres. Identify type(s) of waters: Wetlands: acres. F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY): If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers Wetland Delineation Manual and/or appropriate Regional Supplements. Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce. ? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the "Migratory Bird Rule" (MBR). Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:T. Other: (explain, if not covered above): Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional judgment (check all that apply): Non-wetland waters (i.e., rivers, streams): linear feet width (ft). Lakes/ponds: acres. Q Other non-wetland waters: acres. List type of aquatic resource: Wetlands: acres. Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction (check all that apply): Non-wetland waters (i.e., rivers, streams): linear feet, width (ft). Lakes/ponds: acres. El Other non-wetland waters: acres. List type of aquatic resource: Wetlands: acres. SECTION IV: DATA SOURCES. A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked and requested, appropriately reference sources below): Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant: Data sheets prepared/submitted by or on behalf of the applicant/consultant. ® Office concurs with data sheets/delineation report. ? Office does not concur with data sheets/delineation report. Data sheets prepared by the Corps: Corps navigable waters' study: U.S. Geological Survey Hydrologic Atlas: ? USGS NHD data. ? USGS 8 and 12 digit HUC maps. U.S. Geological Survey map(s). Cite scale & quad name: Charlotte East, North Carolina. USDA Natural Resources Conservation Service Soil Survey. Citation: Mecklenburg County. National wetlands inventory map(s). Cite name: 0 State/Local wetland inventory map(s): ? FEMA/FIRM maps: (] 100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929) Photographs: ? Aerial (Name & Date): or ® Other (Name & Date): See attached report. Previous determination(s). File no. and date of response letter: Applicable/supporting case law: Applicable/supporting scientific literature: [] Other information (please specify): B. ADDITIONAL COMMENTS TO SUPPORT JD: N SEWR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor May 27, 2010 Ms. Sarah Singleton Carolina Wetland Services 550 E. Westinghouse Blvd. Charlotte, NC 28273 Subject: Stonebridge Pond Maintenance Project; Charlotte, Mecklenburg County CWS Project No. 2010-2706 Dear Ms. Singleton: Dee Freeman Secretary The Natural Heritage Program has no record of rare species, significant natural communities, or significant natural heritage areas at the site nor within a mile of the project area. There is a conservation area located about 0.12-mile to the north of the project site - a 22.38-acre tract owned as a preserve by the Catawba Lands Conservancy. It is located on the eastern side of Brier Creek. However, as Brier Creek flows to the south, and as the project site is located south (downstream) of the preserve, construction at the pond and vicinity is not expected to impact the conservation land. You may wish to check the Natural Heritage Program database website at www.ncnhp.org for a listing of rare plants and animals and significant natural communities in the county and on the quad map. Our Program also has a new website that allows users to obtain information on element occurrences and significant natural heritage areas within two miles_of a given location: <http://nhpweb.enr.state.nc.us/nhis/public/gmap75_main.phtml>. The user name is "public" and the password is "heritage". You may want to click "Help" for more information. NC OneMap now provides digital Natural Heritage data online for free. This service provides site specific information on GIS layers with Natural Heritage Program rare species occurrences and Significant Natural Heritage Areas. The NC OneMap website provides Element Occurrence (EO) ID numbers (instead of species name), and the data user is then encouraged to contact the Natural Heritage Program for detailed information. This service allows the user to quickly and efficiently get site specific NHP data without visiting the NHP workroom or waiting for the Information Request to be answered by NHP staff. For more information about data formats and access, visit <www.nconema .cu om>, then click on "FTP Data Download", and then "nheo.zip" [to the right of "Natural Heritage Element Occurrences"]. You may also e-mail NC OneMap at <dataq(a)ncmail.net> for more information.. Please do not hesitate to contact ire at 919-715-8697 if you have questions or need further information. Sincerely, r Harry LeGrand Jr. Zoologist Natural Heritage Program 1601 Mail Service Center, Raleigh, North Carolina 27699-1601 Phone: 919-733-4984 \ FAX: 919-715-3060 Internet: www.enr.state.nc.us An Equal Opportunity \ Affirmative Action Employer- 50% Recycled \ 10% Post Consumer Paper One Na. 1Cmol..i.na N1 turallrl fOL-SO-iL9 :*ON Pafoad 4D siuawaauugug muQ puV puod a?pi.igauoiS 11 1 * Li I I ?? is. I II I is is. C7 Y h II is; i a /] W a !is N is is. is is is 8 O '? = a d c E e - - w E s° ? o `c F . ?" a 'C m o f y- : o i ? m C W _ £ Ap ° - ° U d o o o C ° ° - d G i £ S ? i C L O ? y e_ w £ a 8 ?.. c fi m i" s e ? i ° a O PG a~1 w > O J °- ^? a a .d, ° ° S °e e e a i e '? ££ d? a e •°- i ° m = _ i is :? g E 0. ' 2 w a i ? v°J, c o •? ' y? 'a ? £"a u -" o .i ` cD 0. ? ea 0. V. S0. E ? ' W W v c°. 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