Loading...
HomeMy WebLinkAbout20111111 Ver 1_401 Application_20111211Corps Submittal Cover Sheet Please provide the following info 20111111 1 Project Name I Allenbrook Westridge Storm Water Capital Improvement Project CIP 2 Name of Applicant Charlotte Mecklenburg Storm Water Services Mr Jarrod Karl 3 Name of Consultant /Agent HDR En meenng Inc of the Carolinas (Mr Eric Mularski * Agent authorization needs to be attached 4 Related /Previous Action ID numbers N/A 5 Site Address 6 Subdivision Name Allenbrook Neighborhood 7 City Charlotte 8 County I Mecklenburg 9 Lat N 35 26 Long W 80 91 Decimal De rees Please 10 Quadrangle Name Mountain Island Lake 11 Waterway Unnamed Tributaries to Paw Creek Allenbrook Tributary and Westridge Tributary) 12 Watershed Catawba HUC 03050101170) 13 Requested Action tolLgama RRWV nn- Z Nationwide Permit # 3 & 27 DEC 2 2 2011 FIL WATER QUA11T y ❑ General Permit OS MDSTORIWATERBRANOH ® Jurisdictional Verification Request ❑ Pre Application Request b 20111111 December 21 2011 Ms Amanda Jones Asheville Regulatory Field Office US Army Corps of Engineers 151 Patton Avenue Room 208 Asheville North Carolina 28801 5006 NC Division of Water Quality 401/Wetlands Unit 1650 Mail Service Road Raleigh North Carolina 276991650 Re Allenbrook Westndge Storm Water Capital Improvement Project (CIP) Jurisdictional Verification and Nationwide Permits (3 and 27) Request Mecklenburg County North Carolina To Whom It May Concern HDR Engineering Inc of the Carolinas (HDR) on behalf of our client Charlotte Mecklenburg Storm Water Services (CMSWS) is requesting a Jurisdictional Verification and authorization under a Nationwide Permit (NWP) 3 (Maintenance) and a NWP 27 (Aquatic Habitat Restoration Establishment and Enhancement Activities) for activities associated with the Allenbrook Westndge Storm Water Capital Improvement Project (CIP) in Mecklenburg County (Figure 1 and Figure 2) Proiect Description The purpose of the Allenbrook Westndge CIP is to improve the performance of the existing neighborhood storm drainage system upgrade the capacity of the three culvert crossings (Allenbrook Drive Lanewood Place and Westndge Drive) and enhance aquatic habitat and water quality by restoring and enhancing impaired stream channels on two unnamed tributaries (UT) to Paw Creek (Allenbrook Tributary and Westndge Tributary) CMSWS intends to conduct Rosgen based Priority II stream restoration activities on approximately 1270 linear feet (If) of Allenbrook Tributary Priority II restoration will consist of channel relocation bank grading and stabilization floodplain bench excavation installation of in stream structures and riparian buffer establishment These activities will be submitted for mitigation credits to the City of Charlotte s Mitigation Bank Instrument (MBI) In addition stream enhancement activities are proposed on approximately 1850 If of Allenbrook Tributary and approximately 1730 If of Westndge Tributary upstream of the restoration reach totaling 3 580 If of enhancement Upstream stream enhancement activities will further benefit water quality in this watershed A Site Specific Mitigation Plan (SSMP) has been submitted and approved by the Interagency Review Team (IRT) HDR Engineering Inc of the Carolinas 440 S Church Street Phone (704) 338 6700 Suite 1000 Fax (704) 338 6760 Charlotte NC 28202 1919 www hdrinc com Jurisdictional Waters of the US HDR performed a field assessment to document jurisdictional waters of the US within the Project Area The area was examined applying the methodology described in the US Army Corps of Engineers (USACE) 1987 Wetland Delineation Manual USACE Post Rapanos guidance the recent USACE Interim Regional Supplement and the NC Division of Water Quality (DWQ) guidance Completed USACE forms DWQ forms and representative photographs are attached No jurisdictional wetlands have been identified within the Project Area Table 1 is summary of delineated features Table 1 Delineated Features Feature Classification USACE Score DWQ Score Delineated Length I Allenbrook Tributary RPW with Perennial Flow 45 38 3200 Westrid a Tributary RPW with Perennial Flow 42 31 1 750 Total 4,950 NWP 3 Impacts Maintenance activities including culvert replacement and associated stabilization structures will result in permanent fill impacts to jurisdictional waters The proposed storm water infrastructure has been designed in accordance with the current Charlotte Mecklenburg storm drainage system design standards Three culvert replacement locations each consisting of double reinforced box culverts (RCBC) will be staggered in elevation to create a low flow culvert and a floodplain culvert These will be located entirely within the footprint of the existing deteriorated structures In addition soil will be added to the bottom of the culverts to create a more natural channel bottom Installing np rap aprons and adding stone to augment existing plunge pools downstream of outfalls will help dissipate flows and protect the downstream channel Sediment and erosion control devices will be installed and employed throughout the duration of the project Mitigation requirements will be offset by the onsite stream restoration /enhancement activities Table 2 is a summary of permanent stream impacts HDR Engineering Inc of the Carolinas Page 2 of 5 I able 1 Permanent Stream Impacts 'Stream Stream Station Type of Proposed Replaced Stream Impact Impact D S10 (P) Impact 22 +37 (Sheet 15) Length (111 ALLENBROOK DRIVE S1 (P) Allenbrook 10 +96 Rip Rap Apron 37 Sheet 6 Tributary 10 +59 Stabilization S2 (P) Allenbrook 11 +86 Culvert 8 W x 4 H RCBC (East) 6 W x 6 H RCBC (West) 139 x 89 Arched CMP 15 (Sheet 6) Tributary 10 +96 Replacement 901 751 LANEWOOD PLACE S3 (P) Allenbrook 19 +91 Rip Rap Apron 21 (Sheet 7) Tributary 19 +70 Stabilization S4 (P) Allenbrook 20 +66 Culvert 6 W x 5 H RCBC (North) 133 x 76 (Sheet 7) Tributary 19 +91 Replacement 6 W x 7 H RCBC (South) 751 Arched CMP 601 15 WESTRIDGE DRIVE S5 (P) Westridge 2 +04 Rip Rap Apron 20 Sheet 11 Tributary 1 +84 Stabilization S6 (P) Westridge 2 +89 (Sheet 11) Tributary 2 +04 S7 (P) Westridge 5 +28 (Sheet 11 Tributary 4 +90 & 12) S8 (P) Westridge 14 +08 (Sheet 13) Tributary 13 +75 S9 (P) Westndge 17 +65 Sheet 14 Tributary 17 +40 S10 (P) Westridge 22 +37 (Sheet 15) Tributary 21 +82 Culvert 6 W x 3 H RCBC (South) 78 RCP Replacement 6 W x 5 H RCBC (North) (80 If) (85 If) RANCH ROAD Augment Existing Plunge Pool Stabilization WESTSTONE DRIVE Augment Existing Plunge Pool Stabilization INTERURBAN AVENUE Rip Rap Stabilization Augment Existing Plunge Pool 5 38 33 25 55 Stream Impacts I 264 NCR Engineering Inc of the Carolinas Page 3 of 5 Agency Correspondence Cultural Resources HDR reviewed the National Register of Historic Places (NRHP) GIS database and found no known structures or historic districts located within a mile of the Project Area Correspondence (dated January 7 2009) was sent to the NC State Historic Preservation Office (SHPO) requesting Information on cultural resources that may be Impacted by the proposed project SHPO reviewed (ER 09 0043) the project and commented that no historic resources would be affected (dated January 27 2009) Federally Protected Species HDR reviewed the US Fish and Wildlife Service (FWS) protected species list and consulted the NC Natural Heritage Program (NHP) Elemental Occurrence GIS database for Mecklenburg County Suitable habitat for Schweinitz s sunflower (Helianthus schwe►n►tzii) was present with in the Project Area A pedestrian survey was conducted during its flowering season and no individuals were present FWS concurred with our findings in a response dated November 22 2011 (FWS Log No 4 2 09 105) The NHP commented that the only rare species located within a mile of the Project Area Is the long extirpated population of the Federally Endangered Carolina heelsplitter (Lasm►gona decorata) from Paw Creek The species was last noted in this creek (specific location not well documented) prior to 1918 (correspondence dated January 12 2009) We are hereby requesting a verification of delineated waters and authorization to construct under a NWP 3 and NWP 27 and Section 401 Water Quality Certifications (WQC) No 3687 and WQC No 3689 Enclosed herein are ➢ Agent Authorization Form ➢ Pre Construction Notification (PCN) Form ➢ Project Vicinity (Figure 1) ➢ USGS Mountain Island Lake Quadrangle (Figure 2) ➢ Delineated Waters of the US (Figure 3) ➢ NRCS Soils (Figure 4) ➢ Construction Plans ➢ DWQ Stream Identification Forms ➢ USACE Stream Quality Assessment Forms ➢ USACE Wetland Determination Data Form — Eastern Mountain and Piedmont ➢ Representative Photographs ➢ Agency Letters Thank you In advance for your assistance If you have any questions or require additional information after your review of the enclosed Information please contact Eric Mularskl at (704) 973 6878 or enc mularskifthdnnc com HDR Engineering Inc of the Carolinas Page 4 of 5 Respectfully Eric Mularskl PWS Environmental Scientist Cc Jarrod Karl Project Manager CMSWS Jacklyn Bray Project Manager CMSWS HDR Engineering Inc of the Carolinas Page 5 of 5 ® 0 8 � AGENT AUTHORIZATION FORM I Jarrod Karl representing Charlotte Mecklenburg Storm Water Services hereby certify that I have authorized Eric Mularsk► representing HDR Engineering Inc of the Carolinas to act on my behalf and take all actions necessary to the processing and issuance of the Nationwide Permits (3 and 27) application associated with the Allenbrook Westridge Stormwater Improvement Project (CIP) located in Mecklenburg County North Carolina We hereby certify that the information submitted in this application is true and accurate to the best of our knowledge Jarrod Karl Applicant s Name Applicant s Signature Date Eric Mularski Agents Name Agent s Signature 12/21/2011 Date HDR Engineering Inc of the Carolinas 440 S Church Street Phone (704) 338 6700 Suite 1000 Fax (704) 338 6760 Charlotte NC 28202 1919 www hdnnc corn ot \o� W A T 9 X1 T. O 'C 20111111 Office Use Only Corps action ID no DWQ project no Form Version 1 3 Dec 10 2008 Page 1 of 12 PCN Form — Version 1 3 December 10 2008 Version Pre - Construction Notification PCN Form A Apphcant Information I 1 Processing 1 a Type(s) of approval sought from the Corps ®Section 404 Permit El Section 10'1*ermit 1 b Specify Nationwide Permit (NWP) number 3 and 27 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 [:1401 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 1g 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 Allenbrook Westndge Storm Water Capital Improvement Project (CIP) 2b County Mecklenburg 2c Nearest municipality / town Charlotte 2d Subdivision name 2e NCDOT only T I P or state project no 3 Owner Information 19 L�-3 1-11� L!� U ky L9 nn 3a Name(s) on Recorded Deed See attached 3b Deed Book and Page No 3c Responsible Party (for LLC if applicable) WATERQUALITy K4Q ,,,11 1WATER6RAN 3d Street address 3e City state zip 3f Telephone no 3g Fax no 3h Email address Page 1 of 12 PCN Form — Version 1 3 December 10 2008 Version 4 Applicant Information (if different from owner) 4a Applicant is ❑ Agent ® Other specify Municipality 4b Name Jarrod J Karl Mitigation Administrator 4c Business name (if applicable) Charlotte Mecklenburg Storm Water Services (CMSWS) 4d Street address 600 East Fourth Street 4e City state zip Charlotte NC 28202 4f Telephone no 704 - 432 -0966 4g Fax no 704 336 -6586 4h Email address Ikarl @ci charlotte nc us 5 Agent/Consultant Information (if applicable) 5a Name Eric Mularski Environmental Scientist 5b Business name (if applicable) HDR Engineering Inc of the Carolinas 5c Street address 440 S Church Street Suite 100 5d City state zip Charlotte NC 28202 1919 5e Telephone no 704 973 -6878 5f Fax no 704 338 6760 5g Email address enc mularski @hdnnc com Page 2 of 12 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) See attached plans 1 b Site coordinates (in decimal degrees) Latitude 35 26 Longitude 8091 (DD DDDDDD) ( DD DDDDDD) 1 c Property size 130 neighborhood area) acres 2 Surface Waters 2a Name of nearest body of water (stream river etc ) to Unnamed Tributary to Paw Creek proposed project 2b Water Quality Classification of nearest receiving water Paw Creek (Class C) 2c River basin Catawba (HUC 03050101170) 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 According to the land cover use classification adopted by North Carolina the Project Area and surrounding properties are classfied as open space developed land low intensity developed land medium intensity developed land and high intensity developed land These land uses are consistent with aerial imagery and recent onsite visits 3b List the total estimated acreage of all existing wetlands on the property No wetlands were observed during the onsite jurisdictional waters survey In addition the US Fish and Wildlife Services (FWS) National Wetlands Inventory (NWI) did not identify wetlands in the Project Area 3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the property Delineated streams included 3 200 linear feet (If) of (perennial) Allenbrook Tributary 1 750 If of (perennial) Westndge Tributary 3d Explain the purpose of the proposed project The purpose of the Allenbrook Westndge CIP is to improve the performance of the existing neighborhood storm drainage system upgrade the capacity of the three culvert crossings (Allenbrook Drive Lanewood Place and Westndge Drive) and enhance aquatic habitat and water quality by restoring and enhancing impaired stream channels on two unnamed tributaries (UT) to Paw Creek (Allenbrook Tributary and Westridge Tributary) 3e Describe the overall project in detail including the type of equipment to be used The proposed CIP project intends to replace the existing deteriorated stormwater facilities and provide water quality improvements by implementing stream restoration /enhancement activates on tributaries within the watershed Standard excavation and earth moving equipment will be used during the construction Below is a summary of the proposed improvements that will require authorization under the current Nationwide Permits Approximately 1 265 If of Priority II stream restoration on Allenbrook Tributary from upstream of Allenbrook Drive to its confluence with Paw Creek — Approximately 1 850 If of stream enhancement activates on Allenbrook Tributary upstream of restoration site — Approximately 1 730 If of stream enhancement actvites on Westndge Tributary upstream of restoration site Replace an existing 139 x 89 arched corrugated metal pipe (CMP) with a double reinforced concrete box culvert (RCBC) at Allenbrook Drive — Replace an existing 133 x 76 arched CMP with a double RCBC at Lanewood Place — Replace an existing 78 reinforced concrete pipe (RCP) with a double RCBC at Westndge Drive Page 3 of 12 PCN Form — Version 1 3 December 10 2008 Version 4 Jurisdictional Determinations 4a Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ❑ Yes ® No ❑ Unknown project (including all prior phases) in the past Comments 4b If the Corps made the jurisdictional determination what type ❑ Preliminary ❑ Final of determination was made 4c If yes who delineated the jurisdictional areas? Agency /Consultant Company Name (if known) Other 4d If yes list the dates of the Corps jurisdictional determinations or State determinations and attach documentation 5 Project History 5a Have permits or certifications been requested or obtained for ❑ Yes ® No ❑ Unknown this project (including all prior phases) in the past? 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 12 PCN Form — Version 1 3 December 10 2008 Version C Proposed Impacts Inventory 1 Impacts Summary la 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 impact Type of wetland Forested (Corps 404 10 Area of impact Permanent (P) or (if known) DWQ — non -404 other) (acres) Temporary T W1 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W2 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W3 ❑ P [IT ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P [IT ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W6 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ 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 3b 3c 3d 3e 3f 3g Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number (PER) or (Corps 404 10 stream length Permanent (P) or intermittent DWQ — non404 width (linear Temporary (T) (INT)? other) (feet) feet) S1 ®P ❑ T Rip Rap Apron Allenbrook ® PER ® Corps 15 37 (Stabilization) Tributary ❑ INT ® DWQ S2 ® P ❑ T Culvert Allenbrook ® PER ® Corps 15 15 Replacement (Fill) Tributary ❑ INT ® DWQ S3 ® P ❑ T Rip Rap Apron Allenbrook ® PER ® Corps 15 21 (Stabilization) Tributary ❑ INT ® DWQ S4 ®P ❑ T Culvert Allenbrook ® PER ® Corps 15 15 Replacement (Fill) Tributary ❑ INT ® DWQ S5 ® P ❑ T Rip Rap Apron Westridge ® PER ® Corps 6 20 (Stabilization) Tributary ❑ INT ® DWQ S6 ® P ❑ T Culvert Westndge ® PER ® Corps 6 5 Replacement (Fill) Tributary ❑ INT ® DWQ See Table 2 in cover 3h Total stream and tributary impacts letter for enitre listing 31 Comments Upgrading and replacing three deteriorated culverts will result in approximately 35 If of permanent fill impacts Rip rap aprons and augmenting lun a pools below the proposed replacement culverts and existing culverts will result in Page 5 of 12 PCN Form — Version 1 3 December 10 2008 Version approximately 229 If of permanent impacts 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) 01 ❑ PEI T 02 ❑P ❑T 03 []PEI T 04 ❑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 51 Expected pond surface area (acres) 5j Size of pond watershed (acres) 5k Method of construction Page 6 of 12 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 ❑ Neuse ❑ Tar Pamlico ❑ Other Project is in which protected basin? ❑ Catawba ❑ Randleman 6b 6c 6d 6e 6f 6g Buffer impact number — Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Temporary T impact required? 131 ❑P ❑T ❑Yes ❑ No B2 ❑P ❑T ❑Yes ❑ No B3 ❑P ❑T ❑Yes ❑ No 6h Total buffer impacts 61 Comments D Impact Justification and Mitigation 1 Avoidance and Minimization la Specifically describe measures taken to avoid or minimize the proposed impacts in designing project The proposed stream restoration /enhancement activities are intended to improve water quality enhance instream aquatic habitat and establish a native riparian buffer Stream banks will be sloped back and natural materials will be utilized to provide bank stabilization and to create instream structures The proposed storm water infrastructure has been designed according to the Charlotte Mecklenburg storm drainage system criteria and standards Replacement double RCBCs have been designed to maintain low flow conditions and will be constructed entirely within the footprint of the existing deteriorated structures These structures have been designed to the shortest possible extent without compromising the intent of the proposed project 1 b Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques The Erosion Control Plan adheres to the local and state requirements and control devices will be employed throughout the duration of the project Tree protection fencing will be installed as noted on the construction plans Stream banks will be stabilized using biodegradable matting and planted with native grasses trees and shrubs The contractor will only perform work on a section of stream that can be stabilized in the same day and all other areas will be stabilized within 48 hours All work in or adjacent to stream waters shall be conducted in a dry work area Sod will be added to the bottom of the RCBCs to create a more natural channel bottom Rip rap aprons and adding stone to augment existing plunge pools downstream of outfalls will help dissipate flows and protect the downstream channel 2 Compensatory Mitigation for Impacts to Waters of the U S or Waters of the State 2a Does the project require Compensatory Mitigation for ❑ Yes ® No impacts to Waters of the U S or Waters of the State? 2b If yes mitigation is required by (check all that apply) ❑ DWQ ❑ Corps ❑ Mitigation bank 2c If yes ? which mitigation option will be used for this project ❑ payment to in lieu fee program ❑ Permittee Responsible Mitigation Page 7 of 12 PCN Form — Version 1 3 December 10 2008 Version 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 I 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 8 of 12 PCN Form — Version 1 3 December 10 2008 Version E Stormwater Management and Diffuse Flow Plan (required by DWQ) 1 Diffuse Flow Plan la Does the project include or is it adjacent to protected riparian buffers identified ❑ Yes ® No within one of the NC Riparian Buffer Protection Rules? lb If yes then is a diffuse flow plan included? If no explain why ❑ Yes ® No Comments 2 Stormwater Management Plan 2a What is the overall percent imperviousness of this projects less than 24 % 2b Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c If this project DOES NOT require a Stormwater Management Plan explain why DWQ does not require a Stormwater Management Plan for projects that are subject to Section 404 NWP 3 and NWP 27 authorizations 2d If this project DOES require a Stormwater Management Plan then provide a brief narrative description of the plan ❑ Certified Local Government 2e Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3 Certified Local Government Stormwater Review 3a In which local government s jurisdiction is this project? City of Charlotte /Mecklenburg County ® Phase II 3b Which of the following locally implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply) ❑ Water Supply Watershed ❑ Other 3c Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 4 DWQ Stormwater Program Review ❑ Coastal counties 4a Which of the following state implemented stormwater management programs apply ❑ HQW ❑ ORW (check all that apply) ❑ 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 9 of 12 PCN Form — Version 1 3 December 10 2008 Version F Supplementary Information 1 Environmental Documentation (DWQ Requirement) la Does the project involve an expenditure of public (federal /state /local) funds or the ® Yes ❑ No use of public (federal /state) land? 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 ❑ 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 ❑ Yes ® No letter ) 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 NA Page 10 of 12 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 ® Yes ❑ No habitat? 5b Have you checked with the USFWS concerning Endangered Species Act ® Yes ❑ No impacts? El Raleigh 5c If yes indicate the USFWS Field Office you have contacted ® Asheville 5d What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? Obtained an updated list of federally protected species from the US Fish and Wildlife Services (FWS) website (http / /nc es fws gov /es /countyfr html) NC Natural Heritage Program (NHP) GIS coverage database search Suitable habitat for Schweirntz s sunflower (Helianthus schweirntzu) was present with in the Project Area A pedestrian survey was conducted during its flowering season and no individuals were present The FWS concureed with our findings in a response dated November 22 2010 (FWS Log No 4 2 -09 105) The NHP commented that the only rare species located within a mile of the Project Area is the long extirpated population of the Federally Endangered Carolina heelsplitter (Lasmigona decorata) from Paw Creek The species was last noted in this creek (specific location not well documented) prior to 1918 (correspondence dated January 12 2009) 6 Essential Fish Habitat (Corps Requirement) 6a Will this project occur in or near an area designated as essential fish habitats TO Yes ® No 6b What data sources did you use to determine whether your site would impact Essential Fish Habitat? NOAA Essential Fish Habitat Mapper 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? HDR reviewed the National Register of Historic Place (NRHP) GIS database and found no known structures or historic districts located within a mile of the Project Area Correspondence (dated January 7 2009) was sent to the NC State Historic Preservation Office (SHPO) requesting information on cultural resources that may be impacted by the proposed project SHPO reviewed (ER 09 0043) the project and commented that no historic resources would be affected (dated January 27 2009) 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 A Floodplain Development Permit for the Allenbrook Tributary Stream Restoration Project was submitted and approved by the Mecklenburg County Flood Mitigation Program 8c What source(s) did you use to make the floodplain determination? Floodplain Mapping Information System http / /floodmaps nc gov /fmis/ Page 11 of 12 PCN Form — Version 1 3 December 10 2008 Version Enc Mularski 12/21/2011 Applicant/Agent s Printed Name - I v 'Cppiicant&e- nt'�gnature I Date (Agents signature is valid only i an authorization letter from the applicant Page 12 of 12 PCN Form - Version 1 3 December 10 2008 Version -I TRIM,N e iLu OAKDALE NOR---, OAKDALE HAMILTON o4 � � CIRCLE a GARDEN PARK \ J + — .HOMESTD ?. ' w .. TODD PARK PAW CREEK _ o. .- WILDW040 °"- TODOVILLE WILSON CHE AY HEIGHT$ Cherltway x G WESTCHESTER ` 2 UNIVE ARK PAWTUCKETT 4 FL HOSKINS LINCOLN L AKVIEW 21 HEIGHTS Project Area ERRACE ..... 3: Forest WASHINGTON TODDViLLE ROAD Lawn HEIGHTS °' Cemetery LAKEWOOD 16 BLE MCCROREY HEIGHTS DRUI w o " SMALLWOOD U " ( ENDERLY PARK v o ' , " St SEVER$VILLE s� wood La dS21 r 9 emetery 16 �? WESLEY TH RD WARD HEIGHTS FOURTH WA Fq WESTERLY HILLS >- 4 ASHLEY PARK r } wr+ea tyti UPTOV 74 �. F I R Charlotte Douglas International j°art SECON CAPITOL DRIVE o WESTOVER HILLS ILMORE WARD 160 } WINGATE REVOLUTION PARK`+> { REID PARK WEST BLVD 19 SOUTH ENDM DILWORTH t �? Array ARBOR GLEN OantUrl BROOKHJLLS {r a� � "ark U1 inch =1 mile UTHSIDE PARK � 0 0.5 1 2 n SEDGEFIELD r Miles ?21 rsr r, Project Vicinity fq Figure 1 ONE COMPANY I Many Solutions - Charlotte Mecklenburg Storm Water Services I Allenbrook Westridge Storm Water CIP USGS Mountain Island Lake Quadrangle 1j ` Figure 2 ONE COMPANY I Many Solutions - Charlotte Mecklenburg Storm Water Services I Allenbrook Westridge Storm Water CIP • . Area 1�1161c U� ! a Allenbrook • utary (RPW with Perennial Flow) Northern Or Westridge Tributary (RPW with Perennial Flow) Mecklenburg County Hydrography ` v National • Inventory � 1 aaA Realer Rd low c Gu \\ Ot O _ �n Tar - Heel Rd ;:_ 001111.10/. m Wabash Av or . � mo Tanglebriar Dr _�, ,r Woodway PI ate �g a� r Westcrest.Dr, , � 41 191k. / 9oOi des O� �0 a c °�o �drd t �a�L a / /Slon o NorthAv C! ' Key,St., o`Q Lynn St - a011,p� r � CD � oa en�n GoosebP p Q Ra cry �° 02 Doverstone Ct d G� °'�6 v �� � -\QA N� m 1,000 feet a 1 500 1.000 2,000 Feet �N w S 185 Ra f • � �•, • : '�I - •• -• -�� eD2 CeB2 cosy •. • • • - • :', CUB o� Northern Dr Q • • • ° Exchange St a CeD2 Ce Ur Bearer Rd 5 � CeD CeB2 A DHeB CeB2 ' Tar Heel Rd i ApD �a e° At' °ktree pr CeD2 CeD-2 Wabash Av PaE CeB2 Ur a o _ Woodway Ft PaF ° 0 3 CD 0 a�P� m Q Westcrest,Dr F /ae� b \�`eC�t� P� o �Lest e�yq` ' \00� o a - a9e , o- �✓ CeD o —o a p s dies ` cam` � CeB2 dap /e/ Ceg2 eaf cap \fie \\ CeB2 PaE 'iib /age CUD �esfP� M pr p, 0 tea, °d /rye St Ce PaE c;- CUB CeB2 2 a CFO Fa /lsto o North Av. p m , D CeD2 Key St k a CeD2 �P r CeB Lynn St r eD Hoover St RasAbe 2 0` o !� CeB2 r D PaE co p o e2 CeB2 CeD osP6P� CeD2 a�kaa /e \,Doverstone Ct r CeD2 1,000 feet Ur 1 500 1,000 2,000 Say \ee S� 3 w Feet o S 1-85 Ra CUB �nj EnB w NC DWn Stream identification Form Version 4 11 Date Absent Weak ProfecVSite Latitude Evaluator V_�y Longitude Total Points Stream Determination (ci Other Stream is at least intermittent � Q Ephemeral Intermittent erennl e g Quad Name if 2:19 or perennial if a 30 3 In channel structure ex riffle pool step pool ripple-pool se uence 0 A Geomorphology (Subtotal =—L >S Absent Weak Moderate Stron 1 Continuity of channel bed and bank 0 1 2 3 2 Sinuosity of channel along thalweg 0 1 2 3 3 In channel structure ex riffle pool step pool ripple-pool se uence 0 1 1 3 4 Particle size of stream substrate 0 1 2 3 5 Active /relict floodplam 0 1 2 3 6 Depositional bars or benches 0 1 1 3 7 Recent alluvial deposits 0 2 3 8 Headcuts 0 FACW = 0 75 OBL = 1 5 Other - 2 3 9 Grade control 0 05 65 15 10 Natural valley 0 05 1 5 11 Second or greater order channel No = 0 Yes =C3) artificial ditches are not rated see dis ussions in manual R Hvdroloov (Subtotal = � S ) 12 Presence of Baseflow 0 1 2 3 13 Iron oxidizing bacteria 0 2 2 3 14 Leaf litter 1 5 1 05 0 15 Sediment on plants or debris 0 5 1 1 5 16 Organic debris lines or piles 0 1 05 1 1 1 5 17 Sod based evidence of high water table? No = 0 Yes - C Rioloov (Subtotal = gill O ) 18 Fibrous roots in streambed 2 1 0 19 Rooted upland plants in streambed 3 2 1 0 20 Macrobenthos (note diversity and abundance) 0 1 2 3 21 Aquatic Mollusks Z 1 2 3 22 Fish 0 1 1 5 23 Crayfish 05 1 1 5 24 Amphibians 0 05 1 15 25 Algae 0 1 1 5 26 Wetland plants in streambed FACW = 0 75 OBL = 1 5 Other - perennial streams may also be identified using other methods See p 35 of manual Notes -j-gA,&&jkg;V r 1 y �vl.l L-aw -- 0-0rSrL V- r- V..,FS t IMP m s"r Sketch F r NC DWn Stream Identification Form Version 4 11 Date I �'-d,>%t Project/Site� Latitude Evaluator MM r µ,,,i,,A4zAw County N r-Ay- + -, a! Longitude -8D9 Total Points Stream Determination (cir Other► Stream is at least intermittent Ephemeral Interm en erenmal e g Quad Name Lq4 if a 19 or perennial if 2 30 2 3 A Geomorphology Subtotal = Absent Weak Moderate Strong 1 Continuity of channel bed and bank 0 1 2 3 2 Sinuosity of channel along thalweg 0 1 2 3 3 In channel structure ex riffle pool step pool ripple sequence 0 /,� 2 3 4 Particle size of stream substrate 0 1 1 3 5 Active /relict floodplaln 0 9) 2 3 6 Depositional bars or benches 0 1 2 3 7 Recent alluvial deposits 0 2 3 8 Headcuts 0 1 2 3 9 Grade control 0 05 1 5 15 10 Natural valley 0 05 QD 15 11 Second or greater order channel No Yes = 3 artificial ditches are not rated see discussions in manual R Hvriminnv (Siihtntal = t? 1 12 Presence of Baseflow 0 1 2 3 13 Iron oxidizing bacteria 0 1 2 3 14 Leaf litter 15 1 05 0 15 Sediment on plants or debris 0 0 1 15 16 Organic debris lines or piles 0 0 1 15 17 Soil based evidence of high water table? No = 0 Yes = r: Rinlnnv (Siihtntal = 1 18 Fibrous roots in streambed d 2 1 0 19 Rooted upland plants in streambed rb 2 1 0 20 Macrobenthos (note diversity and abundance) 0 1 2 3 21 Aquatic Mollusks 1 2 3 22 Fish 0 1 1 5 23 Crayfish — 05 1 1 5 24 Amphibians 0 1 1 5 25 Algae 0 05 1 1 5 26 Wetland plants in streambed FACW = 0 75 OBL = 1 5 Other = 0 perennial streams may also be identified using other methods See p 35 of manual Notes a S GyF V kZJA, ►NGSF W-V v o fe— k0sr,% gF�l Sketch �� � � r F3rrA/t V �'— USACE AID# DWQ # Site # Allenbrook Tributary STREAM QUALITY M NT WORKSHEET fih,Srp,.O•S� �. �. I Applicants Name City of Charlotte 2 Evaluators Name Eric Mularski 3 Date of Evaluation 11/03/2011 4 Time of Evaluaton 8 30 AM 5 Name of Stream UT to Paw Creek - Allenbrook Tributary 6 River Basin Catawba 7 Approximate Drainage Area 345 acres 8 Stream Order 2nd 9 Length of Reach Evaluated approximately 3,200 If 10 County Mecklenburg 11 Site Coordinates (if known) prefer in decimal degrees 12 Subdivision name (if any) Allenbrook Latitude (ex 34 872312) 35 26 Longitude (ex 77 55 66 11) 8091 Method location determined (circle) GPS Topo Sheet Ortho (Aerial) Photo /GIS Other GIS Othe Field survey 13 Location of reach under evaluation (note nearby roads and landmarks and attach map identifying stream(s) location) See attached map 14 Proposed Channel Work (if any) Stream restoration and enhancement 15 Recent Weather Conditions sunny, mid 60 °s 16 Site conditions at time of visit sunny, mid 60 0s 17 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) 18 Is there a pond or lake located upstream of the evaluation point? YES ® If yes estimate the water surface area 19 Does channel appear on USGS quad map? (9 ) NO 20 Does channel appear on USDA Sod Surveys YE NO 21 Estimated Watershed Land Use 60 % Residential 30 % Forested _% Commercial 10 % Industrial _% Agricultural _% Cleared / Logged _% Other 22 Bankfull Width 1520 23 Bank Height (from bed to top of bank) 5 6 24 Channel slope down center of stream _Flat (0 to 2 %) _L _Gentle (2 to 4 %) _Moderate (4 to 10 %) _Steep ( >10 %) 25 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 sconng 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) 45 Comments Channel is incised with stream banks actively eroding Excessive sediment deposition is evident and depositing in pools and bar formation Garbage and debris is present throughout the channel Evaluators Signature L44— - Date 111412011 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 06/03 To Comment please call 919 876 8441 x 26 STREAM QUALITY ASSESSMENT WORKSHEET Allenbrook Trlbutary ECOREGION POINT RANGE # CHARACTERISTICS SCORE Coastal Piedmont Mountain 1 Presence of flow 1 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 1 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 0-5 0-4 0-4 2 extensive discharges = 0 no discharges = max points) 5 Groundwater discharge 0-3 0-4 0-4 2 Q no discharge = 0 springs sees wetlands etc = max p oints v 6 Presence of adjacent floodplam 0-4 0 — 4 0-2 1 no flood lain = 0 extensive flood lain = max points) CL 7 Entrenchment I floodplam access 0— 5 0— 4 0— 2 1 (deeply entrenched = 0 frequent flooding = max points) 8 Presence of adjacent wetlands 0-6 0-4 0-2 0 no wetlands = 0 large adjacent wetlands = max points) 9 Channel sinuosity 0-5 0-4 0-3 2 extensive channelization = 0 natural meander = max points) 10 Sediment input 0 -5 0 -4 0 -4 1 extensive deposition= 0 little or no sediment = max poi nts 11 Size & diversity of channel bed substrate fine homogenous = 0 large diverse sizes = max points) NA* 0-4 0 - 5 2 12 Evidence of channel incision or widening 0-5 0 - 4 0-5 2 (deeply incised = 0 stable bed & banks = max points) 13 Presence of major bank failures 0-5 0 - 5 0-5 1 severe erosion = 0 no erosion stable banks = max points) q 14 Root depth and density on banks 0-3 0 — 4 0-5 2 �. 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 poottripple pool complexes no nffles/ripples or pools = 0 well-developed = max points) 0-3 0 - 5 0-6 3 1 Habitat complexity 0-6 0-6 0-6 3 little or no habitat = 0 frequent vaned habitats = max points) = 18 Canopy coverage over streambed 0-5 0-5 0-5 3 no shading vegetation = 0 continuous canopy = max points) 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 2 no evidence = 0 common numerous types = max points) 21 Presence of amphibians 0-4 0-4 0-4 2 O no evidence = 0 common numerous es = max points) m 22 Presence of fish 0-4 0-4 0-4 2 no evidence = 0 common numerous types = max points) 23 Evidence of wildlife use 0-6 0-5 0-5 2 no evidence = 0 abundant evidence = max points) Total Points Possible 100 100 100 TOTAL SCORE (also enter on first page) 45 USACE AID# DWQ # Site # Westrdge Tributary MSTREAM QUALITY ASSESSMENT WORKSHEET AQO 1 Applicants Name City of Charlotte 2 Evaluators Name Eric Mularski 3 Date of Evaluation 11/03/2011 4 Time of Evaluation 10 30 am 5 Name of Stream UT to Paw Creek — Westndge Tributary 6 River Basin Catawba 7 Approximate Drainage Area 130 acres 8 Stream Order 1st 9 Length of Reach Evaluated 1,750 If 10 County Mecklenburg 11 Site Coordinates (if known) prefer in decimal degrees 12 Subdivision name (if any) Allenbrook Latitude (ex 34 872312) 35 26 Longitude (ex 77 55 66 11) -80 91 Method location determined (circle) GPS Topo Sheet Ortho (Aerial) Photo /GIS Other GIS Other field surve 13 Location of reach under evaluation (note nearby roads and landmarks and attach map identifying stream(s) location) (see attached maps) 14 Proposed Channel Work (if any) Stream enhancement 15 Recent Weather Conditions sunny, mid 60 °s 16 Site conditions at time of visit sunny, mid 60 0s 17 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) 18 Is there a pond or lake located upstream of the evaluation point? YES (ND If yes estimate the water surface area 19 Does channel appear on USGS quad map? YES NO 20 Does channel appear on USDA Sod Surveys YES NO 21 Estimated Watershed Land Use 70 % Residential _% Commercial _% Industrial _% Agricultural 30 % Forested _% Cleared / Logged _% Other ( ) 22 Bankfull Width 56 23 Bank Height (from bed to top of bank) 5 24 Channel slope down center of stream _Flat (0 to 2 %) _X _Gentle (2 to 4 %) _Moderate (4 to 10 %) _Steep ( >10 %) 25 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 sconng 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) 42 Comments Westndge Tributary is a channelized stream that serves as a natural property boundary through a residential neighborhood The stream channel is incised and exhibits areas with severe bank erosion Evaluator s Signature Date 111312011 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 06/03 To Comment please call 919 876 8441 x 26 STREAM QUALITY ASSESSMENT WORKSHEET Westrldae Trlbutary # CHARACTERISTICS ECOREGION POINT RANGE SCORE Coastal Piedmont Mountain 1 Presence of flow 1 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 1 extensive alteration = 0 no alteration = max points) 3 Riparian zone 0-6 0-4 0-5 1 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 points) 5 Groundwater discharge 0-3 0-4 0-4 2 Q no discharge = 0 springs sees wetlands etc = max points) v V5 6 Presence of adjacent floodplam 0-4 0 - 4 0-2 1 no flood lain = 0 extensive flood lam = max points) a 7 Entrenchment / floodplam access 0-5 0-4 0-2 1 (deeply entrenched = 0 frequent flooding = max points) 8 Presence of adjacent wetlands 0-6 0-4 0-2 0 no wetlands = 0 large adjacent wetlands = max points) 9 Channel sinuosity 0-5 0-4 0-3 1 extensive channelization = 0 natural meander = max rots 10 Sediment input 0 -5 0 -4 0 -4 2 extensive de ositlon= 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 2 12 Evidence of channel incision or widening 0-5 0 - 4 0-5 2 (deeply incised = 0 stable bed & banks = max points I--- 13 Presence of major bank failures 0-5 0 - 5 0-5 2 d severe erosion = 0 no erosion stable banks = max points) F 14 Root depth and density on banks 0-3 0 — 4 0-5 2 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 riffies/ripples or pools = 0 well developed = max points) 0-3 0 - 5 0-6 2 17 Habitat complexity 0-6 0-6 0-6 2 little or no habitat = 0 frequent vaned habitats = max points) =ra 18 Canopy coverage over streambed 0— 5 0— 5 0— 5 3 no shading ve etabon = 0 continuous canopy = max points) 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 2 no evidence = 0 common numerous types = max points) O 21 Presence of amphibians 0— 4 0— 4 0— 4 2 no evidence = 0 common numerous types = max points) J 2 Presence of fish 0-4 0 — 4 0-4 1 ca no evidence = 0 common numerous es = max points) F23 Evidence of wildlife use 0-6 0-5 0-5 2 no evidence = 0 abundant evidence = max p2Ln ts Total Points Possible 100 100 100 TOTAL SCORE (also enter on first page) 42 WETLAND DETERMINATION DATA FORM — Eastern Mountains and Piedmont Project/Site Allenbrook Westrndge Capital Improvements Project City /County Charlotte /Mecklenburg Sampling Date 11/3/2011 Applicant/Owner Charlotte Mecklenburg Storm Water Services State NC Sampling Point DP1 Investigator(s) Eric Mularski Section Township Range N/A Landform (hdlslope terrace etc) hdlslope Local relief (concave convex none) concave Slope (°/) 2 Subregion (LRR or MLRA) MLRA 136 of LRR P Lat 35 26 Long 80 91 Datum Sod Map Unit Name CuB Cecil Urban land complex NWI classification None Are climatic / hydrologic conditions on the site typical for this time of year? Yes ✓ No (If no explain in Remarks) Are Vegetation Sod or Hydrology significantly disturbed? Are Normal Circumstances present? Yes ✓ No Are Vegetation Sod or Hydrology naturally problematic? (If needed explain any answers in Remarks) SUMMARY OF FINDINGS — Attach site map showing sampling point locations transects Important features etc Hydrophytic Vegetation Present? Yes No Is the Sampled Area Hydnc Sod Present? Yes No V within a Wetland? Yes No ✓ Wetland Hydrology Present? Yes No V Remarks Upland data point HYDROLOGY Wetland Hydrology Indicators Secondary Indicators (minimum of two reauired) Primary Indicators (minimum of one is reawred check all that apply) _ Surface Sod Cracks (136) _ Surface Water (Al) _ True Aquatic Plants (1314) _ Sparsely Vegetated Concave Surface (68) _ High Water Table (A2) _ Hydrogen Sulfide Odor (C1) _ Drainage Patterns (1310) _ Saturation (A3) _ Oxidized Rhizospheres on Living Roots (C3) _ Moss Trim Lines (616) _ Water Marks (131) _ Presence of Reduced Iron (C4) _ Dry Season Water Table (C2) Sediment Deposits (62) _ Recent Iron Reduction in Tilled Sods (C6) _ Crayfish Burrows (C8) _ Drift Deposits (133) _ Thin Muck Surface (C7) _ Saturation Visible on Aerial Imagery (C9) Algal Mat or Crust (134) _ Other (Explain in Remarks) _ Stunted or Stressed Plants (D1) _ Iron Deposits (135) _ Geomorphic Position (132) _ Inundation Visible on Aerial Imagery (137) _ Shallow Agwtard (D3) _ Water Stained Leaves (139) _ Microtopographic Relief (D4) _ Aquatic Fauna (1313) _ FAC Neutral Test (D5) Field Observations Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) 10( Wetland Hydrology Present? Yes No includes capillary fringe) Describe Recorded Data (stream gauge monitoring well aerial photos previous inspections) if available Remarks No wetland hydrology Indicators are present US Army Corps of Engineers Eastern Mountains and Piedmont — Interim Version VEGETATION (Four Strata) — Use scientific names of plants Sampling Point DP1 7 Absolute Dominant Indicator Dominance Test worksheet Tree Stratum (Plot size 30 ft ) ° Cover Species? Status Number of Dominant Species 1 Quercus rubra 20 Yes FACU That Are OBL FACW or FAC 3 (A) 2 Quercus alba 20 Yes FACU Fagus grandifolia 20 Yes FACU Total Number of Dominant 3 Yes FAC FAC species x 3 = 4 Species Across All Strata (B) 15 4 FACU species x4= 3 Ligustrum laporncum 15 Yes NI UPL species x5= 4 Percent of Dominant Species 5 Column Totals (A) (B) 5 That Are OBL FACW or FAC 25/ (A/B) 6 6 7 Prevalence Index worksheet 8 Total A Cover of. Multiply by. 60 = Total Cover OBL species x 1 = Sapling /Shrub Stratum (Plot size 15 ft ) FACW species x2= 1 Liquidambar styraciflua 20 Yes FAC FAC species x 3 = 2 Carya spp 15 Yes NI FACU species x4= 3 Ligustrum laporncum 15 Yes NI UPL species x5= 4 Column Totals (A) (B) 5 6 Prevalence Index = B/A = 7 Hydrophytic Vegetation Indicators 1 Rapid Test for Hydrophytic Vegetation 8 9 2 Dominance Testis >50/ 3 Prevalence Index is 53 0' 10 _ Herb Stratum (Plot size 1 2 3 4 5 6 7 8 9 10 11 12 Woody Vine Stratum (Plot size 30 ft ) 1 Toxicodendron radicans 2 3 4 5 6 50 _ 4 Morphological Adaptations' (Provide supporting = Total Cover data in Remarks or on a separate sheet) Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydnc sod and wetland hydrology must be present unless disturbed or problematic Definitions of Four Vegetation Strata Tree — Woody plants excluding vines 3 in (7 6 cm) or more in diameter at breast height (DBH) regardless of height Sapling /Shrub — Woody plants excluding vines less than 3 in DBH and greater than 3 28 ft (1 m) tall Herb —All herbaceous (non woody) plants regardless of size and woody plants less than 3 28 ft tall = Total Cover Woody vine — All woody vines greater than 3 28 ft in height 10 No FAC 10 = Total Cover Remarks (Include photo numbers here or on a separate sheet) Upland vegetation Is dominant Hydrophytic Vegetation Present? Yes No US Army Corps of Engineers Eastern Mountains and Piedmont — Interim Version SOIL Sampling Point DP1 Profile Description (Describe to the depth needed to document the indicator or confirm the absence of indicators ) Depth Matrix Redox Features (inches) Color (moist) _L Color (moist) % Type' Loe� Texture Remarks 02 10YR 4/3 100 silt loam 214+ 10YR 4/6 100 silt clay loam Hydric Sod Indicators Indicators for Problematic Hydnc Sods3 _ Histosol (Al) _ Dark Surface (S7) _ 2 cm Muck (A10) (MLRA 147) _ Histic Epipedon (A2) _ Polyvalue Below Surface (S8) (MLRA 147 148) _ Coast Prairie Redox (A16) _ Black Histic (A3) _ Thin Dark Surface (S9) (MLRA 147 148) (MLRA 147 148) _ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Piedmont Floodplain Sods (F19) _ Stratified Layers (A5) _ Depleted Matrix (F3) (MLRA 136 147) _ 2 cm Muck (A10) (LRR N) _ Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Depleted Below Dark Surface (A11) _ Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12) _ Thick Dark Surface (Al2) _ Redox Depressions (F8) _ Other (Explain in Remarks) _ Sandy Mucky Mineral (S1) (LRR N _ Iron Manganese Masses (F12) (LRR N MLRA 147 148) MLRA 136) _ Sandy Gleyed Matrix (S4) _ Umbric Surface (F13) (MLRA 136 122) 31ndicators of hydrophytic vegetation and —, Sandy Redox (S5) _ Piedmont Floodplain Sods (1719) (MLRA 148) wetland hydrology must be present Stripped Matrix (S6) unless disturbed or problematic Type Depth (inches) No hydric soil Indicators are present Hydnc Sod Present? Yes No `( US Army Corps of Engineers Eastern Mountains and Piedmont — Interim Version f DR %J1-4E %. %Jlv'YAIN i , �viany "lnt'"ns" bite Photographs - AllenbrooK Westridge Storm Water UP Photograph #1- Allenbrook Tributary looking upstream I Photograph #2 - Westridge Tributary looking downstream FDR ��.L aRy ju -lu bite F'notoarauns — AlienprooK westriaae storm water sir Photograph #3 - Existing Allenbrook Drive 139" x 89" Arched CMP looking downstream I Photograph #4 - Existing Lanewood Place 133" x 76" CMP looking downstream FDR vnE l kjiyi nn I , many outimum" bite Nnotograpns - AnennrooK westriage Storm water sir Photograph #5 - Existing Westridge Drive 78" RCP looking upstream ICDE�IR North Carolina Department of Environment and Natural Resources Division of Natural Resources Planning and Conservation Beverly Eaves Perdue Governor Linda Pearsall, Director Dee Freeman Secretary January 12 2009 Mr Eric Mularski HDR Enginee►tng Inc of the Carolinas 128 S Tryon Street Suite 1400 Charlotte NC 28202 5004 Subject Ailenbrook Watershed Restoration Planning Charlotte Mecklenburg County Dear Mr Mularski The Natural Heritage Program has no record of significant natural communities significant natural heritage areas or conservation /managed areas at the site nor within a mile of the project area The only rare species location within a mile is the long extirpated population of the Federally Endangered Carolina lieelsplitter (Lasmigona decorata) from Paw Creek The species was last noted in this creek (specific location not well documented) prior to 1918 You may wish to check the Natural Heritage Program database websrte 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 websrte 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 /phis /public /gmap75_mam 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 websrte 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 b) NHP staff For more information about data formats and access visit <www nconemap com >, then click on 'FTP Data Download' and then "nheo zip [to the right of Natural Heritage Element Occurrences ] You may also a mail NC OneMap at <dataq@a ncmail net> for more information Please do not hesitate to contact me at 919 715 8697 if you have questi� s or need further information Sincerely Harry E LeGrand Jr Zoologist Natural Heritage Program 1601 Mad Service Center Raleigh North Carolina 276991601 NOCa'011ria Phone 919 715 -4195 t FAX 919 715 3060 Internet www oneNCNaturaily org Y.11044 An Equal Opportunity 1 Affirmative Action Employer — 50% Recycled 110% Post Consumer Paper Natural Resauroes Pbimmg and Caiserumron Beverly Ea es Perdue, Go,. erhor Linda A Carlisle, Sccruary jeffrev J Crow Deputy Secretary January 27 2009 Eric Mularski HDR Engineering Inc 128 South Tryon Street Suite 1400 North Carohna Department of Cultural Resources State Historic Preservation Office Peter B Sandbeck, Adnumstrator of the Carolinas Charlotte NC 28202 -5004 Offce of Archives and H story D rsron of Histoncal Resourccm D1 d Brook Director Re Allenbrook Watershed Restoration Pl inning Mecklenburg County ER 09 0043 Dear Mr Mularski Thank you for your letter of January 7 2009 concerning the above project We have conducted a review of the project and are aware of no historic resources which would be affected by the project Therefore we have no comment on the project as proposed The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the Advisory Council on Histonc Preservation s Regulations for Compliance with Section 106 codified at 36 CFR Part 800 Thank you for your cooperation and consideration If you have questions concerning the above comment Please contact Renee Gledhill Earley environmental review coordinator at 919 807 -6579 In all future communication concerning this project, please cite the above referenced tracking numbe>_ Sincerely eter Sandbeck Location. 109 Lrast Jones Street Raleigh NC 27601 Ma lung Address- 4617 Mad Set%= Center Raleigh NC 27699-4617 Telephone /Pax (919) 807 0u70 /807 6574 United States Department of the Interior FISH AND WILDLIFE SERVICE Asheville Field Office 160 Zillicoa Street Asheville North Carolina 28801 November 22 2010 Mr Eric Mularski HDR Engineering Inc 440 S Church Street, Suite 1000 Charlotte North Carolina 28202 Dear Mr Mularski Subject Federally Listed Species Assessment for Allenbrook Watershed Restoration Project in Charlotte, Mecklenburg County North Carolina On February 2, 2009 we provided you a letter with our comments on the subject project In that letter we requested that a survey be conducted for the federally endangered Schweinitz s sunflower (Hehanthus schweanatzaa) because suitable habitat existed within the project area On October 29, 2010 we received correspondence from you that included the results of a survey for Schweimtz s sunflower conducted by HDR The following comments are based on our review of the information that you provided in that letter and are in accordance with the provisions of the Fish and Wildlife Coordination Act, as amended (16 U S C 661 667e) and section 7 of the Endangered Species Act of 1973, as amended (16 U S C 1531 1543) (Act) Federally Listed Species - After reviewing the information that you provided we concur with your conclusion that no listed species occur on the site We do not believe any endangered or threatened species will be affected by the proposed project therefore the requirements under section 7 of the Act are fulfilled However, obligations under section 7 of the Act must be reconsidered if (1) new information reveals impacts of this identified action that may affect listed species or critical habitat in a manner not previously considered, (2) this action is subsequently modified in a manner that was not considered in this review or (3) a new species is listed or critical habitat is determined that may be affected by the identified action We appreciate the opportunity to provide these comments If we can be of assistance or if you have any questions, please do not hesitate to contact Mr Bryan Tompkins of our staff at 828/258 3939, Ext 240 In any future correspondence concerning this project, please reference our Log Number 4 2 09 105 8 A discussion about the extent to which the project will result in the loss, degradation, or fragmentation of wildlife habitat from direct construction impacts and from secondary development impacts 9 Mitigation measures that will be employed to avoid, eliminate, reduce, or compensate for habitat value losses (wetland riverme, and upland) associated with any phase of the proposed project We appreciate the opportunity to provide these comments If we can be of assistance or if you have any questions please do not hesitate to contact Mr Bryan Tompkins of our staff at 828/258 -3939, Ext 240 In any future correspondence concerning tlus project please reference our Log Number 4 -2 -09 -105 Siac rely, Brian P Cole Field Supervisor United States Department of the Intenor FISH AND WILDLIFE SERVICE Asheville Field Office 160 7alhcoa Street Asheville North Carolina 28801 February 2 2009 Mr Enc Mularski HDR Engineering Inc of the Carolinas 128 S Tryon Street, Suite 1400 Charlotte, North Carolina 28202 -5004 Dear Mr Mularski Subject Listed Species Assessment Allenbrook Watershed Restoration Planning Project, Charlotte, Mecklenburg County North Carolina In your letter of January 7 2009, you requested our comments on the subject project We have reviewed the information you presented and are providing the following comments in accordance with the provisions of the Fish and Wildlife Coordination Act, as amended (16 U S C 661- 667e), and section 7 of the Endangered Species Act of 1973 as amended (16 U S C 1531 -1543) (Act) Your letter does not include a description of the project or any potential impacts It is impossible for us to give a detailed assessment without a complete set of plans that includes the exact location of the project and specific details regarding project plans and construction techniques The purpose of this letter is only to inform you of federally listed species that occur within the geographical area indicated on the map you sent, and we have included a detailed list of information that will be required for us to fully assess the potential direct indirect, and cumulative impacts of any construction/development projects in this area Endangered Species You stated in your letter that suitable habitat for the federally endangered Schwetnitz's sunflower (Hehanthus schwetnazra) occurs within the proposed project area Our records indicate that this species has been found near the proposed project site Your letter did not indicate whether surveys have been conducted for tlus or other rare plant species within the project impact area Unless the area has been specifically surveyed for this listed species or no appropriate habitat exists, a survey should be conducted to ensure that this species is not inadvertently lost We recommend that surveys for this species be conducted during its flowering period (August t4rough October) In accordance with the Act, before any federal authonzation/permits or funding can be issued for this project, it is the responsibility of the appropriate federal regulatory /permitting agency(ies) to determine whether the project may affect any federally endangered or threatened species (listed species) or designated critical habitat If it is determined that this project may affect any listed species or designated critical habitat, section 7 consultation with this office must be initiated At this stage of project development and without more specifics about construction locations and techniques it is difficult for us to assess potential environmental impacts (direct, mdirect and cumulative) We therefore recommend that any environmental document prepared for this project include the following (if applicable) 1 A complete analysis and comparison of the available alternatives (the build and no -build alternatives) 2 An assessment of any development that will impact the 100 -year floodplain 3 A description of the fishery and wildlife resources within existing and required additional rights -of -way and any areas such as borrow areas, that may be affected directly or indirectly by the proposed project 4 The acreage and a description of the wetlands that will be filled as a result of the proposed project Wetlands affected by the proposed project should be mapped in accordance with the Federal Manual for IdentYfying and Delineating Jurisdictional Wetlands We recommend contacting the U S Army Corps of Engineers (Corps) to determine the need for a Section 404 Clean Water Act permit Avoiding and mimmizmg wetland impacts is a part of the Corps' permitting process, and we will consider other potential alternatives in the review of any permits 5 The extent (linear feet as well as discharge) of any water courses that will be impacted as a result of the proposed project A description of any streams should include the classification (Rosgen 1995, 1996) and a description of the biotic resources 6 The acreage of upland habitat by cover type, that will be eliminated because of the proposed project 7 A description of all expected secondary and cumulative environmental impacts associated with this proposed work The assessment should specify the extent and type of development proposed for the project area once the work is complete and how future growth will be maintained and supported with regard to sewer lines, water lines, parking areas, and any proposed roadways