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HomeMy WebLinkAbout20120107 Ver 1_401 Application_20120212�O\ PotashCorp' 2® 1 2 0' 0 7 PotashCorp Aurora Helping Nature Provide Federal Express Jam' February 2 2012 Ms Karen Higgins Supervisor FEB ` 6 2012 Wetlands Buffers Stormwater — Compliance & Permitting Unit DENR MTER QUALITY Division of Water Quality WETLANDa AND STORMATERBFANCH NC DENR 1650 Mail Service Center Raleigh NC 27699 1650 Dear Ms Higgins PCS Phosphate is restoring and enhancing wetlands and streams on some large tracts of land south of Aurora along the Bay City Highway (SR 1002) near the headwaters of South Creek to use for wetland and stream mitigation associated with USACE Action ID 200110096 Enclosed are five copies of a Compensatory Mitigation Plan and a PCN 401 WQC GC 3689 application for the wetland and stream restoration and enhancement work on approximately 3 700 acres on what is called the P and U Lands project Also enclosed are 4 additional copies of this cover letter and a check in the amount of $570 00 for the permit fee The majority of the acreage within the P and U Lands has been in loblolly pine timber production for decades and has had a considerable drainage network developed over that time Our intentions are to complete the earthwork and tree planting over a 3 year time frame Please call me at (252) 322 8249 if you have questions concerning this information or e mail me at jfurness@pcsphosphate com Sincerely rey C Furness Senior Scientist Enclosure PC R M Smith/23 11 020 w /encl M Brom w/o encl S Cooper CZR w /encl J Hudgens — CZR w /encl J Ricketts w /encl 1530 NC Hwy 306 South Aurora NC USA 27806 T (252) 322 4111 PotashCorp. I www potashCorp com 0 fil , ZR INCORPORATED ENVIRONMENTAL CONSULTANTS 4709 COLLEGE ACRES DRIVE SUITE 2 WILMINGTON NORTH CAROLINA 28403 1725 LETTER OF TRANSMITTAL TEL 910 392 9253 FAX 910 392 9139 czrwilm @czr inc com TO Ms Karen Higgins Supervisor Wetlands Buffers Stormwater — Compliance & Permitting Unit Division of Water Quality NCDENR FROM Julia Kirkland Berger DATE 3 February 2012 SUBJECT PCN for 401 WQC GC 3689 and Supporting Document 1 (Compensatory Mitigation Plan for PCS Phosphate P and U Lands Restoration) WE ARE SENDING YOU 5 Cover letter from Jeff Furness Senior Scientist PCS Phosphate Company Inc PCN for 401 WQC GC 3689 for P and U Lands which includes application form Exhibit A (sheets 1 — 3) and Supporting Document 1 (Compensatory Mitigation 5 Plan for the P Lands and U Lands Restoration Site Richland Township Beaufort County NC which includes plan text tables figures and appendices) 1 Check for $570 00 to NCDENR Division of Water Quality THESE ARE TRANSMITTED as checked below ® As required Copies of same documents sent separately to US Army Corps of Engineers Regulatory Field Office in Washington NC Signed Julia Kirkland Berger cc Mr Jeff Furness and Mr Ross Smith PCS Phosphate Company Inc Mr Sam Cooper and Mr Jim Hudgens CZR Incorporated Mr Jonathan T Ricketts Jonathan T Ricketts Inc CP #1745 59 32 2151 Alternate Al South SUITE 2000 JUPITER FLORIDA 33477 3902 TEL 561 747 7455 FAX 561 747 7576 czrinc @czr inc com www CZRINC com ot WAiF9o9 r y O "C 20120107 Office Use Only Corps action ID no DWQ project no Form Version 1 3 Dec 10 2008 Page 1 of 11 PCN Form — Version 1 3 December 10 2008 Version Pre - Construction Notification PCN Form A Applicant Information 1 Processing LL x la Type(s) of approval sought from the Corps ®Section 404 Permit El Section 10 Permit lb Specify Nationwide Permit (NWP) number 27 or General Permit (GP) number 1c 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 le 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 1h Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ® No 2 Project Information 2a Name of project P and U Lands Restoration Site Phases 1 2 and 3 2b County Beaufort and Pamlico 2c Nearest municipality / town Aurora 2d Subdivision name N/A 2e NCDOT only T I P or state project no N/A 3 Owner Information 3a Name(s) on Recorded Deed PCS Phosphate Company Inc 3b Deed Book and Page No Beaufort County 1706/0741 1732/0268 1737/0682 1024/0588 1768/388 392 Pamlico County 561/586 589 3c Responsible Party (for LLC if applicable) D 3d Street address 1530 NC HWY 306 South 3e City state zip Aurora NC 27806 FEB - 6 3f Telephone no 1 252 322 8249 3g Fax no 1 252 322 4444 wo, AND STORWMATEROFMCK 3h Email address jfurness @pcsphosphate corn Page 1 of 11 PCN Form — Version 1 3 December 10 2008 Version 4 Applicant Information (if different from owner) 4a Applicant is ❑ Agent ❑ Other specify 4b Name 4c Business name (if applicable) 4d Street address 4e City state zip 4f Telephone no 4g Fax no 4h Email address 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 B Project Information and Prior Project History 1 Property Identification 1a Property identification no (tax PIN or parcel ID) The P and U Lands are comprised of a total of 11 parcels Eight parcels in the P and U Lands are currently owned by PCS and shown on Beaufort County GIS with the following PINs 15026401 15026897 15026403 15027014 15008524 15008523 15026399 and 15026398 three additional portions of larger Weyerhaeuser owned parcels transferred to PCS but have not yet been entered in the Beaufort (2 parcels) or Pamlico County(1 parcel) online databases However the deed book and page numbers for all parcels are shown in 3b 1 b Site coordinates (in decimal degrees) Latitude 35 233831 Longitude 76 775742 (DD DDDDDD) (DD DDDDDD) 1c Property size +/ 3 667 acres 2 Surface Waters 2a Name of nearest body of water (stream river etc) to proposed project Gum Swamp Run 2b Water Quality Classification of nearest receiving water C Sw NSW 2c River basin 03020104 unit of Tar Pamlico Page 2 of 11 PCN Form — Version 1 3 December 10 2008 Version 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 Approximately 3 667 acres south of the Pamlico River and southeast of Aurora are owned by PCS Phosphate Company Inc (PCS) and are collectively called the P Lands and the U Lands The 787 acre U Lands portion of the P and U Lands Restoration Site is located west of the P Lands Phase 1 and Phase 2 of this proposed restoration project contains approximately 2 000 acres east of SR1002 (Bay City Road) Phase 3 contains the approximately 1 667 acres west of SR1002 including the remaining acres of the P Lands and the 787 acres of the U Lands Figure 1 of the attached mitigation plan (contained within Supporting Document 1 of this application) depicts the entire project area and all three phases of the restoration of P and U Lands on the Aurora NC USGS quadrangle Figure 3 of the plan depicts the soils of the project area Figures 5A and 5B depict the LiDAR contours of the project area and Figure 6 depicts existing drainage features of the project area Most of the Phase 1 area was in silviculture of variably aged stands of loblolly pine (Pmus taeda) in ditched hydnc organic sods and has recently been timbered Figure 7 depicts the biotic communities as of July 2010 and as projected post restoration Most areas of timber in Phase 2 and Phase 3 will also be harvested by Weyerhaeuser prior to onset of restoration activities The surrounding land uses of the P and U Lands and the Phase 1 area include wetland mitigation silviculture and agriculture 3b List the total estimated acreage of all existing wetlands on the property +/ 652 05 acres within the P and U Lands (Figure 4 of the mitigation plan) shows all jurisdictional areas within the project area Exhibit A (sheets 1 2 and 3) of this application depicts each proposed impact area listed in Section 2a and Section 4a of this application 3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the property 0 linear feet of stream with +/ 97 845 linear feet of waters of the US (roadside ditches) (Exhibit A of this application Figure 4 of the mitigation plan) 3d Explain the purpose of the proposed project The overall purpose of the project is to restore the vegetation and hydrology of the historic wetlands of the P and U Lands impacted by years of manipulated drainage and sdvicultural activities and to restore the historic contours of the riparian headwater system of Gum Swamp Run including a low energy stream and adjacent headwater valley (Figure 8 of mitigation plan) 3e Describe the overall project in detail including the type of equipment to be used Restoration (reestablishment) will occur in the drained non jurisdictional areas which were previously wetlands and restoration (rehabilitation) will occur in the degraded jurisdictional areas Enhancement will occur in those jurisdictional areas where the existing trees will remain but the areas are affected by the lateral drainage from adjacent ditches which will be filled or plugged as part of the project The project will involve a minimal amount of earthwork to plug or fill interior ditches and canals and minor grading adjacent to the Gum Swamp Run headwater stream /valley system restoration Perimeter ditches will be constructed along the boundary of much of the site These perimeter ditches will allow the existing offsite drainage that passes through the site to be transported around the site s perimeter Additionally the ditches will help avoid hydrologic trespass onto adjacent parcels Slightly elevated areas will be constructed parallel to these perimeter canals as monitoring access routes /roads and as further insurance against hydrologic trespass Recontounng of the site is not required The site will support a complex of riparian and non riparian wetlands Timbering and stump removal will result in surface roughness that is anticipated to retard runoff of rainfall and allow the recharge of surface water into the sod To minimize compaction construction equipment expected to be used for perimeter ditch excavation plug installation and the perimeter access berm construction consists of tracked backhoes tracked bulldozers and mini dump trucks See Figures 5A/B 6 8 and 12 of the mitigation plan and Appendices B and D Page 3 of 11 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 [:1 No ❑Unknown project (including all prior phases) in the pasty 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 CZR Incorporated Name (if known) Other 4d If yes list the dates of the Corps jurisdictional determinations (JD) or State determinations and attach documentation Corps Preliminary JD for entire 2 900 acre P Lands signed 16 August 2010 On 25 January 2005 the Corps issued a JD for the entire 10 211 acres within the potential PCS mine continuation area referred to as the S33 Tract (Action ID No 200510457) This tract contains the 787 acre U Lands On 3 June 2009 the Corps issued PCS the mine continuation permit (Action ID 200110096) to which the U Lands JD became attached Appendix A of Supporting Document 1 (the mitigation plan) contains copies of all jurisdictional determinations 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 Project will occur in three phases over a three year period See Figure 1 of Supporting Document 1 C Proposed Impacts Inventory 1 Impacts Summa lease refer to Exhibit A of this PCN for graphics which depict each area of impact by hase 1 a Which sections were completed below for your project (check all that apply) ® Wetlands ❑ Streams tributaries ❑ Buffers ®O en Waters ❑ Pond Construction Page 4 of 11 PCN Form — Version 1 3 December 10 2008 Version 2 Wetland Impacts If there are wetland im acts 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 Sod disturbance ❑ Yes ® No ® Corps ❑ DWQ 21 W2 ❑ P ®T Sod disturbance ❑ Yes ® Corps 22 ® No ❑ DWQ W3 ❑ P ®T Sod disturbance ❑ Yes ® Corps 22 ® No ❑ DWQ W4 ❑ P ®T Sod disturbance ❑ Yes ® Corps 22 ® No ❑ DWQ W5 ❑ P ® T Sod disturbance ❑ Yes ® Corps 20 ® No ❑ DWQ W6 ❑ P ® T Sod disturbance ❑ Yes ® Corps 20 ® No ❑ DWQ W7 ❑ P ®T Sod disturbance ❑ Yes ® Corps 19 ® No ❑ DWQ W8 ❑ P ®T Sod disturbance ❑ Yes ® Corps 11 ® No ❑ DWQ W9 ❑ P ® T Sod disturbance ❑ Yes ® Corps 5 ® No ❑ DWQ W10 ❑ P ®T Sod disturbance ❑ Yes ® Corps 14 ® No ❑ DWQ W11 ❑ P ® T Sod disturbance ❑ Yes ® Corps 15 ® No ❑ DWQ W12 ❑ P ® T Sod disturbance ❑ Yes ® Corps 15 ® No ❑ DWQ W13 ❑ P ®T Sod disturbance ❑ Yes ® Corps 17 ® No ❑ DWQ W14 ❑ P ® T Sod disturbance ❑ Yes ® Corps 16 ® No ❑ DWQ W15 []PET Sod disturbance ❑ Yes ® Corps 19 ® No ❑ DWQ W16 ❑ P ®T Soil disturbance ❑ Yes ® Corps 18 ® No ❑ DWQ W17 ❑ P ®T Soil disturbance ❑ Yes ® Corps 18 ® No ❑ DWQ W18 ❑ PET Soil disturbance ❑ Yes ® Corps 23 ® No ❑ DWQ W19 ❑ P ® T Sod disturbance ❑ Yes ® Corps 35 ® No ❑ DWQ W20 ❑ P ® T Sod disturbance ❑ Yes ® Corps 11 ® No ❑ DWQ W21 ❑ P ® T Sod disturbance ❑ Yes ® Corps 9 ® No ❑ DWQ W22 ❑ P ®T Sod disturbance ❑ Yes ® Corps 9 ® No ❑ DWQ 2g Total wetland impacts 381 2h Comments Impact locations for W1 W22 are shown on Exhibit A and the project will entail temporary construction impacts to these wetlands as the project purpose is wetland restoration /reestablishment and enhancement/rehabilitation 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 Page 5 of 11 PCN Form — Version 1 3 December 10 2008 Version 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 — non -404 width (linear Temporary T (INT)? other feet feet S1 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S2 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S3 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h Total stream and tributary impacts 31 Comments Page 6 of 11 PCN Form — Version 1 3 December 10 2008 Version 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 a 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 ® P ❑ T Fill /plug roadside ditch Oil 02 ® P ❑ T Fill /plug roadside ditch 086 03 ® P ❑ T Fill /plug roadside ditch 071 04 ® P ❑ T Fill /plug roadside ditch 071 05 ® P ❑ T Fill /plug roadside ditch 054 06 ® P ❑ T Fill /plug roadside ditch 003 07 ® P ❑ T Fill /plug roadside ditch 056 08 ® P ❑ T Fill /plug roadside ditch 052 09 ® P ❑ T Fill /plug roadside ditch 056 010 ®P ❑ T Incidental fill roadside ditch 147 011 ® P ❑ T Fill /plug roadside ditch 1 39 012 ® P ❑ T Fill /plug roadside ditch 223 013 ® P ❑ T Fill /plug roadside ditch 1 42 014 ® P ❑ T Fill /plug roadside ditch 065 015 ® P ❑ T Fill /plug roadside ditch 086 016 ® P ❑ T Fill /plug roadside ditch 0 18 017 ® P ❑ T Fill /plug roadside ditch 096 018 ® P ❑ T Fill /plug roadside ditch 096 019 ®P Q T Fill /plug roadside ditch 040 020 ® P ❑ T Fill /plug roadside ditch 063 4f Total open water impacts 1519 4g Comments these impacts are shown on Exhibit A and will involve the addition of plugs and /or fill into these ditches such that the hydrology of the surrounding wetlands can be recharged Water impacts shown for 010 is included to cover minor incidental fill which may occur during perimeter berm excavation and construction and connection of Gum Swamp Run into the SR1002 ditch This SR1002 ditch will not be filled and /or plugged 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 i Expected pond surface area (acres) 5j Size of pond watershed (acres) Page 7 of 11 PCN Form — Version 1 3 December 10 2008 Version 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 any impacts require mitigation then you MUST fill out Section D of this form 6a Project is in which protected basin? ❑ Neuse ® Tar Pamlico ❑ Other ❑ Catawba ❑ Randleman 6b Buffer impact number — Permanent (P) or Temporary T 6c Reason for im act 6d Stream name 6e Buffer mitigation required? 6f Zone 1 impact (square feet) 6g Zone 2 impact (square feet) B1 ❑P ❑T ❑Yes ❑ No B2 ❑ P ❑ T ❑ Yes ❑ No B3 ❑P ❑T El Yes ❑ No 6h Total buffer impacts 61 Comments D Impact Justification and Mitigation 1 Avoidance and Minimization 1a Specifically describe measures taken to avoid or minimize the proposed impacts in designing project N/A Proposed project is mitigation 1 b Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques Avoidance and minimization is not applicable here Notwithstanding tracked equipment will be used to minimize compaction of soils 2 Compensatory Mitigation for Impacts to Waters of the U S or Waters of the State 2a Does the project require Compensatory Mitigation for impacts to Waters of the U S or Waters of the State ❑ Yes ® No 2b If yes mitigation is required by (check all that apply) ❑ DWQ ❑ Corps 2c If yes which mitigation option will be used for this project? ❑ Mitigation bank ❑ Payment to in lieu fee program ❑ Permittee Responsible Mitigation 3 Complete if Using a Mitigation Bank 3a Name of Mitigation Bank 3b Credits Purchased (attach receipt and letter) Type Quantity 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 6 Complete if Using a Permittee Responsible Mitigation Plan 5a If using a permittee responsible mitigation plan provide a description of the proposed mitigation plan Mitigation plan is attached as Supporting Document 1 Page 8 of 11 PCN Form — Version 1 3 December 10 2008 Version 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 ❑ Yes ® No buffer mitigation? 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 6c 6d 6e Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (square feet) Zone 1 3 (2 for Catawba) Zone 2 15 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 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? 1 b If yes then is a diffuse flow plan included? If no explain why ❑ Yes No ❑ Comments 2 Stormwater Management Plan No significant changes in impervious surface are anticipated 2a What is the overall percent imperviousness of this project? Impervious surfaces as existing and proposed roads comprise a site total less than 1 percent 2b Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c If this project DOES NOT require a Stormwater Management Plan explain why See exemption letter dated 26 October 2010 copy provided within Appendix A of Supporting Document 1 Project No SW7100910 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 Plans ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3 Certified Local Government Stormwater Review 3a In which local government s jurisdiction is this project'? Beaufort County ❑ Phase II 3b Which of the following locally implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply) ❑ Water Supply Watershed ❑ Other c Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? Page 9 of 11 PCN Form — Version 1 3 December 10 2008 Version 4 DWQ Stormwater Program Review ❑ Coastal counties ❑ HQW 4a Which of the following state implemented stormwater management programs apply ❑ 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 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? lb 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 10 of 11 PCN Form — Version 1 3 December 10 2008 Version 5 Endangered Species and Designated Critical Habitat (Corps Requirement) 5a Will this project occur in or near an area with federally protected species or Yes ®No ❑ habitat 5b Have you checked with the USFWS concerning Endangered Species Act Yes ❑ No impacts? ® 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? United States Fish and Wildlife Service ( USFWS) letter dated 11 March 2009 and NCNHP letter dated 13 March 2009 copy provided within Appendix A of Supporting Document 1 6 Essential Fish Habitat (Corps Requirement) 6a WIII 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? Site contains no jurisdictional streams or freshwater marsh or coastal marsh or bottomiand hardwoods 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 El 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? Letter dated 20 March 2009 from North Carolina State Historic Preservation Office (NCSHPO) copy provided within Appendix A of Supporting Document 1 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 There is no proposed change in storage within the basin 8c What source(s) did you use to make the floodplain determination? Design calculations referenced to FEMA database J�FF9, C Fu `R. EY F- SS C oato� is gents ignature Applicant/Agent s Printed Name Date (Agents signatur va only an authorization letter from the applicant is wiled Page 11 of 11 PCN Form — Version 13 December 10 2008 Version EXHIBIT A PCN for Restoration of P and U Lands PCS Phosphate Company Inc Exhibit A January 2012 ti ..rrs v) L U 1 O O a0 `- Pt M M All I" u 1 f � J U M O r O ' � O O Q O a: # a' N AY CITY R D/ S.R. 1002 Ce P r.� wow N � Cl2 I O rn a L c0 00 4 �M O r J W c0 ILA M to O W ` O ap R � a� = �O t 0, w U J J . d O C) Qp, li. O v) L U 1 O O a0 `- Pt M M All I" u 1 f � J U M O r O ' � O O Q O a: # a' N AY CITY R D/ S.R. 1002 Ce P r.� wow N � Cl2 I J w 1, Z V!N <mw *' O Q m J J V m i 0 00 Z F- C' Q LLI rre m O 0 Q z Z _j of a UJI N y D M ao 3 .0 n3 z n w z j OZ O N O W L N C' W Z v ice' =a w k f s, < t?' ~ J U Q r J W c0 ILA M to O W ` O ap R � °O = �O J U � N w U r\ U) �• - . of d O C) o w O O N V 1­1 <a v O -I� OON N 0 m �� x A�A Z n 00 �� .J� or ` ' ��M � �� Z02070 w z XW " LLI � rn 3 as � ?zo LLI W2 ` M a q d U N Ch O Z a E WO W Q O) v w �— Q C N7MP �oae � NII Y 4 Q y _ (n W Q L CC J w 1, Z V!N <mw *' O Q m J J V m i 0 00 Z F- C' Q LLI rre m O 0 Q z Z _j of a UJI N y D M ao 3 .0 n3 z n w z j OZ O N O W L N C' W Z v ice' =a w k f s, < t?' ~ J U Q r J W c0 ILA M to O W ` O ap R � °O = �O J U � N w U r\ U) �• - . r N d O C) o w Of O O I� N t0 Z t?' Q r J �iit Q 00 O d t0 O O p J U � N w NIA r N d O 0 0 o w Q to I� N t0 in 1­1 o a v O -I� OON N 0 �� x oU�MO o Z n 00 M. ' ��M `�' O O N V \.'- mr Z02070 w z Ouj;� � rn Ew a N: � ?zo V . ` i �W <W O� WP<V WO W Q O) v =Sa C I�glna <�m rn CD 0 { 00200p Mao W.D SwZz [ll omlo a0'o� oTl.iw NIw aN �Z6m ?n o i Z Oo U JO or ? -0j 05 �a w-- W rn U °s m °' � 7t ~ FZ =�OR• _ KZ<N ZOmM�Q Lo J .: CD Nw\ a0 �U Om OU- JO : (Cnx O Q i o o z z w zoo Compensatory Mitigation Plan Exhibit A -1 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 y� PO 4 J I U N O o of LO N �O CO � v J ¢ o VY ¢ O ti J }O _ U /I . La to z a z O O .- r4 n M 0 00 M" I U \ 0 0 R M o N M M \ \' QO D J 'N L H N V } N aQ m Z m 2 t— N t' 7iu XW W W z as W= U p' M.f m a J U N r W Q O D li Q rh I- ?+ V) Q N 5� >NOhn Q Ui (O W D ` CW ♦N� Q O Q �� m• Q Z G V1N NN W <PP Z J U 0 iye. J J V m i 0000_ O Q Z W 5 Q W �PP M O Q Ln LO Z Z = F W U r fz of — O U 0 0 �-1 3 F- Z M D C`' O zo CO a = Z a_ Z O— O 3 O L 3 N k O ° o � i; -� �• _ � Nom_ N6 Z d N W a W (/) Q O v W W J J = Q ~ �_ f1 N O _j O J.. o v O =1 N M o Q) O r 0 N C N 13 �o o � Pie O 4 }' M D ! N N DS •0 k 3 Ooh CIO r Q D Q ,� Z DD Z Z a_ e tit `y d DD L Z o f m � r <ri OD L. BAY CITY R 4l s. R. 1 002 k� Gj� M O J� N m O CO v j. N Mp M v � < a: + } H } ¢ m Compensatory Mitigation Plan P and U Lands Restoration Exhibit A -2 t' W O 4 O N I i 0 w n N Q V Z O �\ W -Z� O WV OWOQ (=j\VI< Z Z �mw< � 3o foo3 �mwaw a��3 maoir OO' 00 < �M- 'Na « m m °gZz & °w °ozo O N O U U' °„ m N omFO = - =w WO,w a'o0 zl�,i� }QOM ozm Qznm mpg ao z °m€n o wo B 000ril a0?'i w Z N W W V \ W �<OW Z O m M � O< F U O MO U Q N= 0 O3m ¢9 wz3 °¢ 0 aZ <3z «zU PCS Phosphate Company, Inc. January 2012 +, ot �� pHnsen Y CITY No. now J 1' BAY CITY FARM SOUTH CR'EE'K CANAL � 018 5,951.07F° . EXECUTIVE` ROAD (0.96 ac) JAIME ROAD V1 2 W10 - w1s , w1s will a a o U SANDS a a NA M 9 D r Do p 020 BAY CITY b 3;902.14, LF (0.63 ac) \, W18 5,963.1`1...L� A m. 019 (0.96 ac). , µ 0 2,485.60 LF W22 9 o a (0.40 ac) Z_ b I 1 7a -LEGEND P & U LANDS BOUNDARY UNDISTURBED SOUTH CREEK (4,067.26 LF PERENNIAL) NON— JURISDICTIONAL UNDISTURBED WETLANDS DISTURBED JURISDICTIONAL WATERS < (18,301.92 LF, 2.95 ACRES)D T DISTURBED WETLANDS (219.56 ACRES) W1' l WETLAND ID NUMBER 01 I OPEN WATER ID NUMBER COUNTY LINE No. 2.' P LANDS. c UN TY LINE ROAD 2,000 Compensatory Mitigation Plan P and U Lands Restoration Exhibit A -3 PCS Phosphate Company, Inc. January 2012 PHASE III — JURISDICTIONAL AREA TO BE DISTURBED P & U LANDS PCS PHOSPHATE COMPANY, INC. SOURCE: PORTIONS OF THE BOUNDARY PROVIDED BY: ROBERT M. CHILES, NEW BERN, NORTH CAROLINA, JOB #2OO9096, DATED: 11/19/2009 AND 02/02/2010 AND BEAUFORT COUNTY CIS DATA WEBSITE SCALE: AS SHOWN APPRO BY: DRAWN BY: TLJ /BFG WWW.CO.BEAUFORT.NC.US, BEAUFORT COUNTY PARCEL DATA SHAPEFILES, NAD 1983 FEET. DATE: 01/31/12 P ANDS_ FILE: p_ JU LANDS_JURISD_ AERIAL IMAGE PROVIDED BY: NORTH CAROLINA DEPARTMENT OF TRANSPORTATION, 1998 COLOR - INFARED DIGITAL ORTHO MOSAICS, ,1 G CP #1745.59.32 NORTH CAROLINA STATE PLANE, NAD83, FEET, BEAUFORT COUNTY, COLORIRTILE113.SID, COLORIRTILE14O.SID, WEBSITE: WWW.NCDOT.ORG �J ^ 4709 COLLEGE ACRES DRIVE L K SUITE 2 WILMINGTON, NORTH CAROLINA 28403 INCORPORATED TEL 910/392 -9253 CNVKWMENfAI CONSULTAirts FAx 91 O/392 -9139 EXHIBIT A SHEET 3 OF 3 Compensatory Mitigation Plan P and U Lands Restoration Exhibit A -3 PCS Phosphate Company, Inc. January 2012 COMPENSATORY MITIGATION PLAN FOR THE P LANDS AND U LANDS RESTORATION SITE, RICHLAND TOWNSHIP, BEAUFORT COUNTY, NORTH CAROLINA TABLE OF CONTENTS 10 EXECUTIVE SUMMARY 1 20 INTRODUCTION 2 30 LOCATION HISTORY AND PRE RESTORATION DESCRIPTION 2 31 Location 2 32 History 2 33 Pre Restoration Description 2 33 1 Soils 3 3 3 2 Section 404 Jurisdictional Status and Pre restoration Drainage 3 3 3 3 Forested Areas 4 3 3 4 Timbered Areas 5 40 SITE SELECTION FACTORS AND JUSTIFICATION 5 41 Logistics 5 42 Cost and Technology 5 43 Justification 5 50 SPECIFIC GOALS TARGET FUNCTIONS AND METHODS 6 51 Goals 6 52 Functions 6 53 Methods 9 53 1 Phase 1 Work 11 5 3 2 Phase 2 Work 13 5 3 3 Phase 3 Work 15 60 HYDROLOGY 17 61 Hydrologic Models 17 62 Water Budget 17 62 1 Water Budget Inputs Meteorology Evapotranspiration and Soil Data 17 622 Water Budget Output 17 70 PLANTING DESIGN 18 8 0 MONITORING DATA COLLECTION 19 81 Vegetation Monitoring Plots 19 8 1 1 Volunteer Woody Vegetation Sampling 20 8 12 Nuisance Vegetation Monitoring 20 82 Hydrology and Rainfall Monitoring 21 83 Riparian Headwater Systems (Zero to First Order Stream Systems) 21 84 Hydrogeomorphic Monitoring of Streams and Valleys 22 85 Control Forest Wetlands 22 90 ECOLOGICAL PERFORMANCE STANDARDS 23 91 Annual Reports 23 92 Vegetation Ecological Performance Standards 23 93 Nuisance Species 23 94 Wetland Hydrology Ecological Performance Standard and Growing Season 23 95 Stream Restoration Ecological Performance Standards 24 96 Control Forest Wetland 24 97 Reference Stream Reach and Reference Riparian Headwater System 24 PCS Compensatory Mitigation Plan n PCS Phosphate Company Inc P and U Lands January 2012 98 Areas Mapped as Upland on the Beaufort County Soil Survey 99 Summary of Performance Criteria 10 0 ADAPTIVE MANAGEMENT STRATEGIES 101 Adaptive Management 102 Long Term Management 11 0 FINAL DISPOSITION OF SITE REFERENCES Cover photos View to south from Bay City Road No 2 typical pine plantation 8 12 2008 View to south from Small Road post hardwood timber removal 3 19 2009 24 24 26 26 27 27 28 Compensatory Mitigation Plan ni PCS Phosphate Company Inc P and U Lands Restoration January 2012 LIST OF TABLES Table I Additional functions and benefits specific to coastal plain headwater systems 9 Table 2 Summary of reach/segment characteristics lengths and channel form 15 Table 3 List of appropriate woody species with the potential to colonize the site 20 Table 4 Restored wetland or stream functions and measurement methods 21 Table 5 Performance criteria and methods summary 25 LIST OF FIGURES Figure 1 P and U Lands Vicinity Map (USGS topographic map) F I Figure 2 Site Map on 2007 aerial F 2 Figure 3 Soils Map (MRCS Soil Survey Beaufort County) F 3 Figure 4 Jurisdictional Areas F 4 Figure 5A P and U Lands West & East Basin Surface (LiDAR) F 5A Figure 5B Regional LiDAR of P and U Lands Mitigation Site and Surrounding Area F 5B Figure 6 Drainage Facilities F 6 Figure 7 Biotic Communities F 7 Figure 8 Conceptual Mitigation Plan East and West Basins F 8 Figure 9 Planting Plan F 9 Figure 10 Monitoring Locations F 10 Figure I I Potential Control Forested Wetlands F 11 Figure 12A Potential Mitigation Yield East of Bay City Road (SRI 002) F 12A Figure 12B Potential Mitigation Yield West of Bay City Road (SRI 002) F 12B APPENDICES A Permits and Agency Correspondence B P and U Lands Hydrologic and Hydraulic Analysis and Master Plan Recommendations C Selected Historic and Recent Aerial Photographs D Master Plan Pages and Selected Typical Cross Sections E Plant List by Species and Planting Zone Compensatory Mitigation Plan iv PCS Phosphate Company Inc P and LI Lands Restoration January 2012 10 EXECUTIVE SUMMARY Lands that total approximately 3 667 acres south of the Pamlico River and southeast of Aurora North Carolina collectively known as the P Lands and the U Lands will be restored to a wetland complex in three phases beginning in 2010 and ending in 2014 Located in Beaufort County on the east and west sides of SR1002 (Bay City Road) dust north of the Pamlico County line mitigation activities on the site will provide a broad expanse of land for wetland restoration enhancement and preservation Wetlands to be restored include hardwood flat non rnvenne swamp forest rivenne swamp forest headwater forest pond pine pocosin bay forest and swales Wetlands to be enhanced and preserved include nvenne swamp forest headwater forest and non nvenne swamp forest The headwaters and upper valley of historic Gum Swamp Run a tributary to South Creek will also be restored This site is a key component linking PCS Phosphate Company Inc s (PCS) Parker Farm mitigation site Bay City Farm mitigation site Gum Run mitigation site and the South Creek Corridor into a large and varied complex of restored and preserved natural areas (South Creek Corridor Complex) Most of the P and U Lands consist of ditched and drained hydnc organic soils planted in loblolly pine (Pmus taeda) if the trees had value they were timbered after which PCS began stump and slash removal in the most southern sections of the P Lands east of SR1002 in 2010 These preliminary restoration activities were authorized under erosion and sediment control permits from the NC Division of Land Resources The remainder of the impacts to wetlands and waters for the entire P and U Lands has been applied for under a separate US Army Corps of Engineers (Corps) Pre construction Notification (PCN) for which this mitigation plan is a supporting document The overall plan for the site is to remove the existing vegetation in the managed areas plug the interior drainage network of ditches to restore the natural hydrology and replant with appropriate wetland trees and shrubs Canals along the perimeter of the site (SR1002 County Line Road or Peele Road e g ) will remain open for the most part however the interior roadside ditches will be plugged A new bypass canal and access road will be constructed along the northeast P Lands property boundary to accommodate offsite flows east of Peele Road via Dollar Road and the drainage for Peele Road Perimeter canals and access paths will be constructed along the east boundary with the Casey Tract and along County Line Road Gum Road Executive /Jaime Road and Rodman /Bonner Road Restoration work will proceed in three phases as shown on Figure 1 The first phase includes the southern portion of the property east of SR1002 south of Bay City No 4 and the area south of the eastern half of Small Road The second phase will include all of the remaining property east of SR1002 north and south of Small Road The third and final phase will include all of the P Lands section on the west side of SR1002 and all of the U Lands Earthwork in non jurisdictional areas of Phase 1 began in 2010 and construction of all three phases is expected to be complete by the end of 2013 although planting of Phase 3 will occur in early 2014 The North Carolina Wildlife Resources Commission ( NCWRC) as the intended holder of the eventual conservation easement provided preferred locations for their standard gameland parking lots for public access into the P/U Lands restoration site from adjacent state gamelands or adjacent areas scheduled to become state gamelands These NCWRC parking lots have been included in the design and will be constructed in concert with the mitigation activities within each phase or as appropriate Public access to the site will not occur until regulatory agencies concur that all required monitoring can cease and transfer of the conservation easement has been completed Compensatory Mitigation Plan 1 PCS Phosphate Company Inc P and U Lands Restoration January 2012 2 0 INTRODUCTION The +/ 3 667 acre P and U Lands restoration site is part of the compensatory mitigation to offset unavoidable impacts to wetlands and waters authorized under United States Army Corps of Engineers (USACE) Action ID 200110096 and North Carolina Division of Water Quality (DWQ) Water Quality Certification (WQC) #2008 0868 version 2 0 The wetland communities to be restored through rehabilitation and reestablishment include approximately 470 acres of hardwood flat 1 619 acres of non rivernne swamp forest 165 acres of headwater forest 24 acres of nverine swamp forest and 813 acres of pond pine pocosin Approximately 26 acres of non nverine swamp forest will be enhanced and 245 acres of existing mixed forested wetland will be preserved In addition up to 7 989 linear feet of zero order and 900 feet of first order coastal plain riparian headwater stream system in Gum Swamp Run (including a small unnamed tributary to the south) and up to 20 acres of Tar Pamlico riparian buffer will be re established /restored with the mitigation work proposed in this plan for the P and U Lands 30 LOCATION, HISTORY, AND PRE RESTORATION DESCRIPTION 31 Location The P and U Lands site is located east and west of Bay City Road (SR1002) approximately 4 5 miles southeast of Aurora Richland Township North Carolina Bay City Road runs through the P Lands portion of the site which is bounded on the east by SR 1918 ( Peele Road is the unpaved extension of SR 1918) and on the south by County Line Road (a gated gravel road that functions as the Beaufort/Pamlico county border) The U Lands portion of the site lies west and southwest of Bay City Farm (the western portion of the P Lands site referred to as the panhandle separates Bay City Farm from the U Lands site) South Creek and the South Creek Canal form the northern and northwestern boundaries Bonner Road forms the western boundary and the Pamlico /Beaufort County line forms the southern boundary of the U Lands (County Line Road itself is the southern boundary of only the eastern half of the U Lands as the western limit of County Line Road terminates at the midpoint of the south property line) The entire site is accessed via multiple gated roads along Bay City Road Peele Road County Line Road and /or Jaime /Executive Road The site is located within the Pamlico Hydrologic Unit 03020104 of the Tar Pamlico river basin within the South Creek subbasm at latitude 35 233831 and longitude 76 775742 Portions of the site can be found on the USGS Aurora Bayboro South Creek and Vandemere quadrangles (Figures 1 and 2) 32 History The mineral rights of the P Lands were owned by PCS and surface rights were owned by Weyerhaeuser Company Weyerhaeuser and PCS had a contractual agreement which allowed PCS to purchase the surface of the P Lands at a price determined by a pre set formula By the end of 2011 PCS owned all the P Lands surface rights contained within the project area For the U Lands PCS Phosphate owns the surface and mineral rights while Weyerhaeuser Company has one time timber rights through 2012 The P and U designation have no special meaning other than that was the historic label given to PCS and Weyerhaeuser properties with similar ownership agreements The majority of the P and U Lands project site has been managed for timber production for several decades Historic aerial photos reviewed at the Beaufort County Soil and Water Conservation District Office in Washington NC show no evidence of agricultural practices since 1938 33 Pre Restoration Description The P Lands were set up as a series of stands of predominantly loblolly pine (Pmus taeda) which were managed in a rotation of planting thinning and clearcutting Gated gravel access roads cross the P Lands generally with an east west orientation Large ditches /canals adjacent to public roads and some access roads within the site drain interior ditches that are placed with a north south orientation approximately 660 feet apart in the P Lands within the U Lands the interior ditches are oriented east west and the access roads are oriented predominantly north south Compensatory Mitigation Plan 2 PCS Phosphate Company Inc P and U Lands Restoration January 2012 The southern portion of the U Lands was historically a pine /hardwood forest but is now mapped as several different communities all with the potential to become wetland hardwood forest after restoration Large portions of the site have been timbered in recent years with most of the remainder slated to be timbered before Weyerhaeuser s timber rights expire in 2012 There are two areas of non jurisdictional mixed pine /hardwood forest on each side of Gum Road which will most likely be timbered before the end of 2012 but this action is dependent on the timber market The lower southeastern portion east of Gum Road contains a larger section of non jurisdictional mixed pine /hardwood forest which may also be timbered by Weyerhaeuser The rest of the U Lands is a mix of non jurisdictional communities in successional stages post harvests which occurred from 2000 through 2007 A gated gravel road crosses the eastern U Lands on the southern boundary (County Line Road) in an east west orientation and two gravel roads (Gum and Bonner Roads) cut across it in a north south orientation Pre settlement vegetation maps depict the P and U Lands area either as Peatland Long Fire Interval Pyromosaic or Pond Pine Pocosin and Canebrake depending on the source map • http //portal ncdenr org /c /document library/-get file'?uuid= 7a76c23a c6e3 483f 9dba 681598aecc43 &groupld =61563 or • http / /www, ces ncsu edu/ nreos/ forest /feop /AWC2009 /proceedings /pdf awc /frost 6 9 2009 Pdf 331 Soils The Soil Survey of Beaufort County shows most of the site as underlain by hydnc organic soils (Kirby 1995) The major sods at this site include Ponzer muck (58 percent) Dare muck (23 percent) Wasda muck (13 percent) and Dorovan muck (< 1 percent) The mineral based hydnc sods include Portsmouth loam (5 percent) Tomotley fine sandy loam (< 1 percent) and Arapahoe fine sandy loam (< 1 percent) Tarboro sand is the only non hydnc sod series shown within the site and at 4 acres it represents less than 1 percent of the site (Figure 3) The sod survey also depicts a perennial and an intermittent stream channel in the P Lands representing the headwaters of Gum Swamp Run a tributary to South Creek 332 Section 404 Jurisdictional Status and Pre restoration Drainage A preliminary jurisdictional determination was completed for the P Lands by the US Army Corps of Engineers on 16 August 2010 The North Carolina Division of Water Quality made their 401 determination in the field on 4 March 2011 and concurred with the Corps 404 determination and also confirmed that the historical stream channel depicted on the soil survey no longer existed Results of 401/404 jurisdictional determinations are shown on Figure 4 and pre restoration LiDAR flown in May 2010 and obtained in July 2010 is shown on Figure 5A Figure 5B is a depiction of regional LOAR flown by the state of North Carolina and obtained from the Beaufort and Pamlico County websites Appendix A contains copies of the mine continuation permit/certification jurisdictional determinations and other pertinent regulatory agency correspondence The U Lands were included in the multiple year South of Highway 33 wetland delineation performed as part of the environmental evaluation for the PCS mine continuation Routine wetland determination data forms for this portion of the delineation were completed by CZR Incorporated in February 2001 (Appendix A) For the delineation the southern portion of the U Lands was denoted as Parcel 42 and the northern portion was denoted as Parcel 41 Hydrology monitoring occurred on the southern portion March 2001 through June 2002 In 2003 the Corps determined the southern portion of the U Lands was drained and non jurisdictional and the northern portion was jurisdictional wetland For the 2009 mine continuation 404 permit all PCS jurisdictional areas delineated during the environmental evaluation associated with the permit application were reissued such that they all will expire with the same date (Appendix A) North south ditches exist at 660 foot intervals within each stand of timber throughout the P Lands These ditches empty into larger ditches which are adjacent to public Compensatory Mitigation Plan 3 PCS Phosphate Company Inc P and U Lands Restoration January 2012 roads and access roads within and adjacent to the site The lands west of State Road 1002 drain to the west and north to South Creek The properties east of State Road 1002 drain to the north to Gum Swamp Run which empties into South Creek a tributary to the Pamlico River The southern two thirds of the site are drained by the canal on the east side of SR1002 The northern one third of the site drains east to Peele Road then south to Small Road then west to the canal on the east side of SR1002 and then south to Gum Swamp Run Within the U Lands several east west ditches approximately 3 feet wide and 2 feet deep occur along the entire southern area Most of those ditches drain into two roadside ditches of Gum Road whose approximate dimensions are 15 feet wide and 6 8 feet deep The large roadside ditches flow to the north with the flow from the western ditch transferred to the eastern ditch near the northern end of Gum Road The ditch on the eastern side of Gum Road flows through a culvert with a flash board riser into South Creek at the eastern end of Executive /Jaime Road Some of the interior ditches on the east half of the U Lands are interconnected with the ditches on the western portions of the P Lands Hydrological monitoring of similar sod types and site conditions at PCS mitigation sites nearby were consulted as a preliminary evaluation of the site s potential for restoration as a wetland Additionally to facilitate the offsite drainage that must be maintained after the restoration of the site Jonathan T Ricketts Inc prepared a report entitled P and U Lands Hydrologic and Hydraulic Analysis & Master Plan Recommendations This report shows there are four primary drainage subbasins within the P and U Lands these basins and existing drainage facilities are shown on Figure 6 The report also shows the modifications needed to maintain the offsite flows to prevent any adverse impacts to the drainage of adjacent properties The combined report (master plan and analysis) is included in Appendix B 333 Forested Areas The canopy of the P Lands is dominated by various ages of loblolly pine with sweetgum (L►qu►dambar styrac►flua) red maple (Acer rubrum) and tulip poplar (L►riodendron tulip►fera) also present Common shrubs herbs and vines include wax myrtle (Morelia cenfera) mkberry (Ilex glabra) gallberry (Ilex conaceae) swamp red bay (Persea palustns) greenbnar (Smilax spp) yellow jasmine (Gelsem►um sempervirens) blackberry (Rhubus spp) and chain fern species (Woodward►a spp) There are approximately 9 acres of mixed forest on the P Lands eastern boundary across from Bay City No 4 access road which will not be cleared because of its species composition and maturity While it does contain scattered sweet gum and red maple along its western and northern edges this forest also contains large specimens of red bays swamp blackgum (Nyssa sylvatica) and water oak (Quercus n►gra) One living Atlantic white cedar (Chamaecypans thyo►des) and numerous felled tree trunks and remnant stumps which also appear to be Atlantic white cedar are also found in this forest Based on 2001 data forms and a site visit in the late fall of 2007 U Lands canopy vegetation in the forested area on the land to be restored consists of large red maple sweet gum red bay (Persea palustris and P borbon►a) tits (Cyrdla racem►flora) highbush blueberry (Vacc►n►um corymbosum) and scattered loblolly pine (P►nus taeda) The understory includes smaller versions of red bay and tits as well as wax myrtle and inkberry (Ilex glabra) interspersed with vines such as muscadine (Vit►s rotundifoha) wild climbing hydrangea vine (Decumana barbara) and Japanese honeysuckle (Lon►cera japonica) Additional reconnaissance in other areas documented sweetbay (Magnolia wrg►n►ana) as a common understory tree The herbaceous layer includes switchcane (Arund►nana g►gantea) and Virginia chain fern (Woodwardia virg►n►ca) The western half of the northern area was characterized on wetland data forms in 2001 and re visited in 2007 Common vegetation included two dominant tree species red maple and sweet gum and several shrub herbs and vines red bay wax myrtle American beautyberry (Callicarpa amencana) spleenwort (Asplen►um platyneuron) scattered rushes (Juncus spp ) Nepalese brown top (Microsteg►um vim►neum) poison ivy (Tox►codendron radicans) green brier (Smilax rotundifolia) Japanese honeysuckle muscadine yellow jessamine (Gelsem►um sempervirens) wild climbing hydrangea vine false nettle (Boehmena cylmdnca) and Virginia creeper (Parthenoc►ssus qu►nquefoha) The southeastern half of the property contains portions of non jurisdictional communities categorized as hardwood forest pine forest mixed Compensatory Mitigation Plan 4 PCS Phosphate Company Inc P and U Lands Restoration January 2012 pine /hardwood forest and shrub /scrub The northern portion is currently mapped as wetland scrub shrub with the potential to become wetland mixed pine hardwood forest over time Figure 7 depicts biotic communities in P and U Lands as of 2009 (the number to the left of the slash) and the projected climax community after restoration activities by the number to the right of the slash The biotic communities are the same as what was used in the PCS 2008 Final Environmental Impact Statement (FEIS) (US Army Corps of Engineers 2008) 334 Timbered Area Prior to onset of restoration activities by PCS in 2010 several areas had been recently timbered by Weyerhaeuser on the site and as part of transfer of ownership Weyerhaeuser will complete timber activities on additional areas and the site will be prepared for restoration Timbered areas are inhabited by various early successional herbaceous and woody species Dog fennel (Eupatonum capolifohum) broomsedge (Andropogon spp ) blackberry red maple loblolly pine and sweetgum comprise most of the vegetation with scattered gallberry and green briar (Smilax spp ) and with numerous devil s walking stick (Araha spmosa) and panic grass (Panicum spp Dicanthehum spp) Regrowth from stumps of timbered sweetbay sweet gum and red maple is evident in different combinations and various abundances 40 SITE SELECTION FACTORS AND JUSTIFICATION 41 Logistics Site selection is of primary importance in any wetland restoration project since that which was previously a wetland will have a higher likelihood of feasibility sustainability and success if restored Also important in site selection is adjacency to existing wetlands in a similar landscape position whose presence indicates appropriate hydrological conditions for hydnc soil and consequent vegetation communities Adjacent wetlands are also able to serve as seed banks refugia for mobile animals while the restoration site matures and control sites that may be used to assess regional conditions in similar environments to the restoration site This large project serves as a key link to the 2 800 acres restored enhanced and preserved from 1994 1998 at the Parker Farm mitigation site the 709 acre Bay City Farm mitigation site and the approximately 1 500 acres of preservation in the South Creek Corridor mitigation site When complete it will become part of an interconnected 8 706 acre Holistic South Creek Corridor complex conserved in perpetuity (Figure 1) The United States Fish and Wildlife Service (USFWS) the State Historic Preservation Office (SHPO) and the state Natural Heritage Program (NCNHP) were contacted during the environmental evaluation for the mine continuation regarding the presence of listed species cultural resources or natural areas The P and U Lands did not contain species features or man made buildings or sites of interest to these agencies and this correspondence is included in Appendix A 42 Cost and Technology Restoration of the site will require no special technology or complex engineering since only ordinary surficial land moving equipment is necessary to restore the site All surface work will be based on LiDAR and /or normal topographical survey data and guided by the Master Plan recommendations which were based on the site s hydrology and hydraulics analysis There is no identified source of pollutants other than what might be present from previous agricultural use of adjacent lands currently in silviculture so pollutant remediation is not required to restore the site 43 Justification Based on jurisdictional determinations the majority of the site does not meet the three required wetland parameters and is therefore suitable for mitigation by restoration (reestablishment or rehabilitation) and /or enhancement The Beaufort County soil survey UDAR and aerial photography post timber removal have been utilized to identify the remnant perennial /intermittent stream and headwater valley system of Gum Swamp Run within Compensatory Mitigation Plan 5 PCS Phosphate Company Inc P and U Lands Restoration January 2012 the P Lands restoration of this system increases the functional uplift from restoration of this site The sod survey shows Gum Swamp Run as a perennial stream from the east side of SR1002 to the eastern limits of the Wasda soil a distance of approximately 2 000 feet it is shown as an intermittent feature for another 3 000 feet into the eastern limits of Dare soil polygon in the vicinity The LIDAR signature of this Gum Swamp Run valley is evident in the same location as indicated on the soil survey and recent aerial photographs also show the presence of standing water in an alignment similar to both the soil survey and LIDAR features historic aerial photos also support the existence of the Gum Swamp Run headwater valley system Appendix C contains selected historic and recent aerial photographs 5 0 SPECIFIC GOALS, TARGET FUNCTIONS, AND METHODS 51 Goals The purpose of restoration activities of the site is to successfully restore enhance (uplift of one or more aquatic function) or preserve up to 3 405 acres of wetland communities including the riparian headwater system of Gum Swamp Run (Figure 8) Of the 652 05 acres of existing wetlands shown on Figure 4 381 acres of jurisdictional wetlands will be temporarily impacted during site restoration activities The impacts will result in the restoration /rehabilitation of wetland functions to these 381 acres due to a return to near historic hydroperiods and replanting of wetland vegetation (plus other aquatic functions listed in Section 5 2) An additional 15 19 acres of impacts to jurisdictional waters in roadside ditches will occur as the ditches are filled or plugged to restore the hydrology of lands adjacent to the ditches Acres of ditches which are filled will be restored to wetland status and those ditches which are plugged will be open water habitat Approximately 3 121 acres of wetland will be restored (re established or rehabilitated) 26 acres will be enhanced 245 acres will be preserved up to 168 miles (8 889 linear feet) of zero to first order coastal plain stream will be restored and up to 20 acres of Tar Pamlico riparian buffer may be restored The goals will be achieved on a multi spatial scale with these specific objectives To establish a diverse community of vegetation which reflect differences in sod character topography and hydropenods (site) To allow a wetland vegetation community to continue to naturally regenerate from the seed bank (site) To capture and store rainfall which for the past three to four decades has been carried off the site by a system of ditches and canals (site and watershed) To serve as a wildlife corridor within the Holistic South Creek Corridor Complex (site watershed and ecoregion) To improve water quality and provide watershed protection (site watershed and ecoregion) and To provide wildlife habitat (site watershed and ecoregion) 52 Functions Functions of wetlands and waters are the physical chemical and biological processes and attributes of a wetland that in conjunction operate as guarantors of water quality and are important components of food webs and habitat The 1990 Memorandum of Agreement between the Corps and the U S Environmental Protection Agency (EPA) on the Determination of Mitigation under the Clean Water Act Section 404(b)(1) Guidelines and RGL 02 2 require the replacement of aquatic functions which are unavoidably lost or adversely affected by an authorized permitted activity Many wetlands have multiple functions and while accurate assessment of wetland functions is a dynamic field scientists do agree that all wetlands either increase or limit a specific component of the hydrologic cycle Compensatory Mitigation Plan 6 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Successful replacement or uplift of any wetland function is driven by proper mitigation site selection and a design that maximizes what the natural conditions of the site will support The specific aquatic functions which are targeted for the P and U Lands site are NUTRIENT REMOVAL/TRANSFORMATION Generally wetlands are thought of as nutrient sinks for nitrogen phosphorus suspended solids sulfur and carbon and are efficient at transformation and removal of some of these elements depending on loading rates and retention times This function is enhanced with low gradient and abundant vegetation although depending on site conditions phosphorus adsorption to wetland sods can be greater than its accumulation in plant biomass Experience at the 2 800 acre PCS Parker Farm hardwood wetlands mitigation site in Beaufort County indicates that volunteer herbaceous wetland vegetation can cover new mitigation sites within one year The planted forbs and trees volunteer herbs and forbs and the slope of the site which averages less than 0 2 percent will enable this function ORGANIC MATTER PRODUCTION AND EXPORT Decomposed matter (detritus) forms the base of the aquatic and terrestrial food chain and wetlands with high plant productivity are able to produce collect and export organic matter depending upon landscape position The ability of a wetland to transport nutrients downstream requires a hydrologic link to other wetlands areas and the proper balance between vegetation and open non stagnant water with a near neutral pH Located on primarily interstream flats the export of any organic matter from the P and U Lands will be slow and occur most frequently during wetter seasons when organic matter is prevalent and water levels are higher The headwater wetland and rivenne swamp forest portions of this site will be able to transport organic matter on a more frequent and sustained basis due to their connectivity to Gum Swamp Run and South Creek Productivity of the site will increase and change through time as the vegetation matures and goes through various stages of succession Most export of organic matter will be via drainage into receiving waters of Gum Swamp Run an unnamed tributary to South Creek north of Gum Swamp Run South Creek itself and via South Creek to the Pamlico River and Pamlico Sound estuary FLOODFLOW ATTENUATION AND SURFACE WATER STORAGE The ability of a wetland to alter floodflow and store stormwater depends on site position within the watershed degree and type of vegetation cover microtopography of the site and configuration of outlets of the wetland The reduction and delay of peak flows from runoff and precipitation by a wetland can decrease flood stages and flood damage Wetland characteristics that increase storage time and allow attenuated discharge are best at performing this function The P and U Lands occur on interstream flats associated with the headwaters of South Creek and headwaters of Gum Swamp Run a tributary to South Creek as well as headwaters for an unnamed tributary to South Creek north of the P Lands project area between Peele Road and SR1002 Restoration of the P and U Lands will decelerate the current rapid downstream delivery of rainfall via plugging of internal ditches which will increase and prolong on site storage capacity Aquatic resources downstream of this mitigation site via Gum Swamp Run the unnamed tributary to South Creek to the north South Creek itself the Pamlico River and the Pamlico Sound estuary will benefit from restoration of these lands CAPTURE AND RETENTION OF SEDIMENT AND OTHER POLLUTANTS Restoration of the P and U Lands will decrease the erosive velocity within main canals and ditches reducing downstream transport of sediment A restored wetland will increase storage capacity and deliver cleaner water downstream with Compensatory Mitigation Plan 7 PCS Phosphate Company Inc P and U Lands Restoration January 2012 a decreased sediment load While sediment transport from a site dedicated to silviculture is less than that which would occur from a site dedicated to agriculture after restoration of streams and headwaters less sediment will be transported downstream due to longer residency time of the runoff which will cause any sediment load to be deposited before it reaches the more sensitive estuarine and nursery waters downstream Pollutants normal to sdvicultural practices such as herbicides and occasional fertilizers will no longer be utilized on the site which will also improve downstream waters GROUNDWATER RECHARGE /DISCHARGE Wetlands which retain precipitation and /or surface water long enough for percolation into the underlying sediments or aquifers increase the hydraulic head and either recharge groundwater and /or discharge it when fully saturated Elevation of the wetland relative to the underlying groundwater perimeter to volume ratio sod porosity of the wetland sediments and the recent rainfall are all antecedent conditions that determine the recharge /discharge potential in any given precipitation event or season Pre restoration ditch systems discharge rainfall at a rate that delivers a slug of water quickly downstream and off site preventing local groundwater recharge and the concomitant slower discharge Plugging or filling P and U Lands ditch systems will capture local precipitation and freshwater runoff and recharge local groundwater tables and restore more normally scaled and timed discharge events that existed prior to drainage alterations for silviculture Shallower and longer hydropenods in areas adjacent to streams and riparian headwater systems will increase base flow of Gum Swamp Run and its riparian headwater system WILDLIFE HABITAT Wetlands and their associated uplands form complex and diverse habitats for food shelter and breeding that are essential and attractive to various types of resident and migratory wildlife species for all or part of their life cycle The wetlands at the P and U Lands will expand the Holistic South Creek Corridor Complex and provide more food and cover for a variety of birds mammals reptiles and amphibians The addition of the P and U Lands into the Corridor will link together a nearly contiguous area of restored wildlife habitat encompassing more than 8 706 acres which may be particularly valuable for area sensitive species such as black bear (Ursus amencanus) red wolf (Canis rufus) and neotropical migrant birds such as black throated green warbler (Dendroica wens waynei) AQUATIC DIVERSITY Mitigation design at P and U Lands will include the restoration of the upper limits of Gum Swamp Run and its riparian headwater valley system to provide biotic pathways which support a higher diversity of organisms than what is currently present Habitats will include both shallow and very shallow areas single or braided channels and a connection to the perennial waters of Gum Swamp Run a tributary to South Creek The restoration of these topographically varied habitats will increase stormwater residency time and increase the hydropenods of the site Removal of sdvicultural practices and attenuation of storm water will contribute to improved water quality in downstream habitats in South Creek a Special Secondary Nursery Area Additional functions and benefits specific to coastal plain headwater systems are shown in Table 1 Compensatory Mitigation Plan 8 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Table 1 Additional functions and benefits specific to coastal plain headwater systems 53 Methods The historic contours of the site do not appear to have been significantly altered during the timber operation Patterns of high and low areas that span multiple fields are only interrupted by the field ditches used for the timber operation and remain evident on UDAR Restoration work will focus on removal or interruption of the function of the interior manmade drainage features removal of existing vegetation where appropriate including stumps construction of new manmade drainage features around the perimeter to allow for bypass of upstream offsite drainage and planting the site with suitable species of trees as dictated by sods hydrology and landscape position Interior ditches will be plugged approximately every 800 feet with a 50 foot long clay plug from sods excavated on site and the roadside ditches will be plugged every 650 feet with a 100 foot long clay plug The completion of these tasks will attenuate the stormwater runoff and will help restore or enhance a hydropenod similar to historic conditions To reduce potential seed sources vegetation will be removed where it is comprised almost entirely of Corps designated nuisance species of sweet gum red maple and loblolly pine such as along the east side of SR1002 the eastern boundary of the P Lands adjacent to the Casey Tract and along some interior roadside ditches Spraying of fallow areas by helicopter with an appropriate chemical mixture is the preferred methodology to control these three species and retard competitive grasses Compensatory Mitigation Plan 9 PCS Phosphate Company Inc P and U Lands Restoration January 2012 QIMAD C9 :� ukx Hydrology . Runoff reduction Microtopography • Flow velocity reduction Floodplain vegetation • Energy dissipation Wrack and debris lines • Reduced erosion and sedimentation Overbank flooding • Maintenance of baseflow Sod moisture • Prolonged sod saturation • Groundwater recharge and discharge Water quality • Sediment retention and reduction Vegetative cover • Nutrient reduction Distance from potential • Carbon export sources • Toxicant reduction Increased retention time Temperature moderation Sediment deposition Saturated soil conditions Habitat . Increased area of terrestrial and aquatic System size /area /extent habitats Connectivity with other . Increased fringe habitat between upland natural areas and lowland habitats Vegetative cover • Connectivity corridors between different Woody debris wetland and upland habitats Microtopography • Increased diversity Specialized native species • Uniqueness • Water source for fauna Geomorphic • Provide topographic diversity and valley Valley topography corridors Valley slope • Maintains stream evolution processes • Maintains valley formation processes • Variable temperature and moisture regimes 53 Methods The historic contours of the site do not appear to have been significantly altered during the timber operation Patterns of high and low areas that span multiple fields are only interrupted by the field ditches used for the timber operation and remain evident on UDAR Restoration work will focus on removal or interruption of the function of the interior manmade drainage features removal of existing vegetation where appropriate including stumps construction of new manmade drainage features around the perimeter to allow for bypass of upstream offsite drainage and planting the site with suitable species of trees as dictated by sods hydrology and landscape position Interior ditches will be plugged approximately every 800 feet with a 50 foot long clay plug from sods excavated on site and the roadside ditches will be plugged every 650 feet with a 100 foot long clay plug The completion of these tasks will attenuate the stormwater runoff and will help restore or enhance a hydropenod similar to historic conditions To reduce potential seed sources vegetation will be removed where it is comprised almost entirely of Corps designated nuisance species of sweet gum red maple and loblolly pine such as along the east side of SR1002 the eastern boundary of the P Lands adjacent to the Casey Tract and along some interior roadside ditches Spraying of fallow areas by helicopter with an appropriate chemical mixture is the preferred methodology to control these three species and retard competitive grasses Compensatory Mitigation Plan 9 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Perimeter berms and by pass ditches (the berm complex) will be constructed along all boundaries with the exception of the boundaries shared with the Parker Farm portions of the east side of SR1002 Bay City Farm and South Creek The primary function of the perimeter bypass ditches is to transfer the offsite flows that are currently routed through the site These flows include the offsite flow coming from east of Peele Road via Dollar Road ditches the offsite flow which currently flows through both Small Road ditches the offsite flow which currently comes from the Casey tract and the offsite flow from east and south of the Phase 3 boundary The by pass ditch along the north side of the project east of SR 1002 will also receive the internal surface water runoff from the restored wetland areas north of the Parker Farm and all of the surface water runoff north of Small Road After restoration these surface water flows will follow their historic route to the north property line Upon reaching the north property line these internal flows will pass through spillways located along the north property line and join the other offsite flows in the by pass ditch The secondary function of the perimeter by pass ditch is to provide the mineral soil necessary to construct the perimeter berm This low berm will separate the restored wetlands on the interior of the site and the perimeter ditches and is approximately 2 feet higher than the interior of the project In most locations this low berm will prevent the surface water inside the project boundary from draining into the perimeter ditches and will also serve as an access path during the monitoring period The majority of the sods around the perimeter of the site are organic in the upper 1 to 3 feet and the lower portions are mineral Because the organic sod column will easily decompose and consolidate when exposed to air its use in the perimeter berm to prevent surface runoff to the adjacent ditch is problematic and undesirable To minimize the height of construction for the berm the lower 3 to 5 feet of the more stable mineral sods will be used to construct the perimeter berm The berm will be constructed on top of the organic soils and will have a small keyway of mineral soil that extends from the bottom of the berm through the organic topsoil into the underlying mineral sod This keyway will help anchor the berm and will reduce the lateral drainage effect caused by the perimeter ditch Spillways will be placed in the perimeter berms adjacent to the lower portions of the project These spillways will limit the depths and duration of standing water that would threaten the survival of the newly planted stems The restoration of Gum Swamp Run and its headwater valley will require the ditches between Small Road and Bay City 4 to be filled The small amounts of existing spoil material adjacent to each of the interior field ditches constructed for silviculture will also be used to fill a portion of the depth of these ditches The organic topsoil which is generated first during the excavation of the perimeter by pass ditches will be used to fill the remaining depth of these ditches For the majority of the other existing ditches outside of the Gum Swamp Run system plugs will be used to stop the interior drainage For the ditches to be plugged any spoil material that is left adjacent to the ditches may be left in place if the volume of the spoil is relatively small compared to the volume of the ditch Excess organic sod generated in the construction of the perimeter ditches not needed to fill the silviculture ditches in Gum Swamp Run valley (between Bay City 3 and Bay City 4) will be placed in the field ditch closest to where the organic sod was generated A mixture of wood chips and organic topsoil will also be placed in the field ditches where the field ditches are close to wood chip piles The sod and clay needed to construct the plugs will be generated from small borrow areas located at least 100 feet away from the plug to prevent ground disturbance in the area of the plugs Most existing gravel roads will be left in place in the P and U Lands and be used for monitoring access along with the constructed perimeter berms One additional road will be constructed to divert public travel across the bottom southwestern half of the U Lands instead of through the site Currently any vehicles that try to access Rodman (Bonner) Road from the east must travel west on County Line Road turn north at Gum Road proceed to its northern end turn west onto Executive (Jaime) Road and then south onto Rodman (Bonner) Road This plan proposes to construct a western extension of drainage across the southern boundary of the U Compensatory Mitigation Plan 10 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Lands from the end of County Line Road such that it intersects directly into Rodman (Bonner) Road This will allow for the continuation of offsite drainage currently routed along both sides of Gum Road The adjacent roadside ditches of Gum Road will be plugged New gates will be installed at the north and south ends of Gum Road to restrict access for the monitoring period Additionally one existing road Benfewell Road located along the north property line adjacent to Peele Road will be improved to allow access to Weyerhaeuser the adjacent property owner Restoration activities in non jurisdictional areas of Phase 1 began in 2010 and this section will be planted in early 2012 Phase 2 timbering activities began in 2011 and this section will be planted in early 2013 Timber activities for the final phase west of SR1002 also began in 2011 and it will be planted in early 2014 The area in each phase will be seeded with an appropriate mix of forbs as dictated by sediment and erosion control permits until it is planted with an appropriate mix of wetland trees and shrubs commonly found in similar soils and topography or known to historically exist on similar sites In the clearing and grubbing of the Phase 1 area the removal of the tree stumps from just below the ground surface left small depressional areas which mimic wetland surface roughness Since there is no evidence in the UDAR data that shows any grading of the fields was performed to facilitate drainage at the time of the timber planting no mass grading or reworking of the ground surface is necessary within the wetland flat areas other than that required to plug the ditches or to remove stumps and rake land clearing debris Within the headwater valley of Gum Swamp Run minor grading will be utilized to restore the headwater valley In the lower 1 000 +/ of the valley a small channel will be constructed where the contributory watershed area exceeds 200 acres and the longitudinal slope exceeds or equals 0 002 feet per linear foot In some areas that may have sod compaction as the result of construction traffic the use of a tiller to break up compaction in the upper 12 +/ may be used immediately prior to planting to facilitate the establishment of the bare root seedlings The North Carolina Wildlife Resources Commission (NCWRC) as the anticipated holder of the conservation easement upon completion of monitoring has requested the construction of small parking areas in strategic locations in each phase to allow hunters to park a total of 10 parking areas Post monitoring these parking lots and associated gates will restrict vehicle access to the interior roads However the easement holder will maintain many of the existing interior roads as walking trails for the public hunters Land clearing work will continue to progress incrementally under a sequence of Erosion and Sediment Control permits issued from the Washington Regional Office of the state Division of Land Resources Appendix D contains the typical cross sections planned for specific areas 531 Phase 1 Work The land use in this portion of the project was timber plantations with interior roads traversing east west (Bay City Nos 1 3 and 4) and perimeter roads (SRI 002 and Peele Road) traversing north south Small Road and County Line Road which also traverse east west are the northern and southern boundary roads of this phase Currently interior ditches drain to the north and then are intercepted by roadside ditches adjacent to Bay City Nos 1 3 and 4 or by Small Road which drains to the west towards the SRI 002 canal This water is then delivered via the SRI 002 east side canal to Gum Swamp Run and South Creek Along the eastern property line adjacent to the Casey Tract the north south canal shown as County Line No 1 on Figure 6 whose alignment varies from straddling the east property line on the south end and traversing up to 800 feet west of the east property line will be relocated to immediately inside the east property line for its entire length along the Casey Tract Perimeter ditches will be either enlarged or constructed on the south boundary along County Line Road and the eastern boundary along the Casey Tract in Phase 1 These ditches will provide a route to bypass offsite drainage around the perimeter of the site instead of through it fill for a portion of the field ditches adjacent to the east property boundary and also provide the soil necessary to construct the adjacent perimeter berm Compensatory Mitigation Plan 11 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Private roads Bay City Nos 1 3 and 4 will be left in place for monitoring access and to benefit the long term easement holder However the roadside ditches adjacent to these three roads will be plugged The roadside ditch south of Small Road will remain open during Phase 1 and then will be plugged toward the end of Phase 2 Pre restoration UDAR indicates that the southwest corner of the project (south of Bay City No 1 and Bay City No 3) will be lower in elevation than some of the surrounding areas Four spillways at elevation 10 5 feet will be incorporated into the perimeter drainage at the western ends of the roads and the western end of the south perimeter berm such that standing water will not compromise the survival of planted vegetation Following an analysis on projected 100 year flood stages the existing perimeter berm along the east side of the canal east of SR1002 will be modified by raising the berm approximately 12 inches This work will be limited to the areas south of Bay City No 3 The NCWRC parking lots constructed in Phase 1 will be located at the west ends of Bay City Nos 1 3 and 4 A portion of the Parker Farm will also discharge into the most eastern section of the Phase 1 area adjacent to and dust west of Peele Road The present discharge of this portion of the Parker Farm occurs where the western ditch of Peele Road touches the north edge of the Parker Farm During construction of Phase 1 in this area a portion of the Parker Farm discharge will be restricted from entering the Peele Road ditch As a result the water will then be discharged on the adjacent portions of Phase 1 where this phase is contiguous with the Parker Farm The historic flow pattern from this portion of the Parker Farm will be reconnected allowing hydropenod of this portion of Phase 1 to be restored similar to historic conditions In most of Phase 1 after timber removal by Weyerhaeuser contractors removed stumps and slash and placed the material in piles to be chipped as mulch Chips were to be distributed across the site as mulch at depths no greater than 2 4 inches When it became evident that the lower fields in Phase 1 had chip depths in excess of 4 inches and that the amount and depth of chips would complicate planting and potentially jeopardize survival of planted trees it was decided to cease the chipping of stumps and leave the piles of stumps to decay in place Subsequently it was decided that chips already distributed at acceptable depths would remain as placed and areas where chip depths exceeded 4 inches would be raked to consolidate the chips into piles for decomposition To compensate for the potential increased mortality as a result of chip depth and sod acidity higher planting densities are planned for areas with chips than areas without chips Approximately 219 acres of areas with deep chips were raked and the chips were piled into cones of varied height and widths which average 12 feet high and 40 feet in diameter In late August 2011 Hurricane Irene brought high winds and abundant rain ( -10 inches) which flooded the site and redistributed 125 acres of deep mostly unpded wood chips from fields south of Small Road and deposited those chips and additional debris from the stump piles in large drifts in the southeast corner of the P Lands at the intersection of Peele Road and the Parker Farm and left other smaller chip rafts throughout the tracts (see Appendix C photos) These drifts were re raked after the storm Seven borrow pits were excavated for plug and berm base materials Chips raked from adjacent fields were then used to fill the bottom of these borrow pits with the original topsoil replaced on top of the chips For the remainder of the restoration beyond Phase 1 the stumps will be removed from the ground excess dirt shaken off piled and allowed to decay in place In areas where the timber contractor left small hardwood trees these were chipped in place since the density of the hardwoods and their volume is minimal when compared to the volumes of the stumps from the pines Three NCWRC parking lots will be constructed during Phase 1 at the west ends of the following roads Bay City No 4 Bay City No 3 and Bay City No 1 All culverts around the perimeter of the Phase 1 project boundary found in disrepair or dysfunction will be replaced Compensatory Mitigation Plan 12 PCS Phosphate Company Inc P and U Lands Restoration January 2012 532 Phase 2 Work The present land use within this phase is loblolly pine plantation with Bay City No 4 Royal Benfewell and Small Roads traversing east west and two perimeter roads (Peele and SR1002) traversing more or less north south For this phase Bay City No 4 in the western half and Small Road in the eastern half form the southern boundary and Benfewell along with the western portion of Royal Road form the northern boundary The eastern portion of Royal Road is an interior road Interior drainage ditches run north south on 660 foot spacing and generally connect on one end at either the south or north end of the ditch The ends of the north south field ditches connect to roadside ditches along either Royal Road or Small Road As in Phase 1 the proposed restoration work will consist of the construction of the perimeter berm complex with ditches to direct the offsite water that currently drains through the site around the perimeter of the proposed wetland restoration The material generated from the perimeter ditch construction will be used to construct the perimeter berm portion of the complex to retain the onsite surface water and to fill the field ditches south of Small Road and North of Bay City No 4 Presently the three interior roads Benfewell Royal and Small have adjacent roadside ditches The ditches receive drainage from the interior field ditches and also pass offsite drainage from the properties to the east and south to the canal along the east side of SR1002 which then passes the water to the west towards South Creek via Gum Swamp Run All three of these interior roads will remain after the restoration work is complete but their adjacent roadside ditches will be plugged These plugged ditches will decelerate the rapid drainage of stormwater from the site and increase the hydropenod Offsite stormwater runoff that currently flows through the interior ditches will be intercepted by the proposed perimeter ditches and routed as described above A similar evaluation and analysis as done for Phase 1 will be performed to determine the spillway elevations for Phase 2 so that standing water will not compromise the survival of planted vegetation stems The interior field ditches of Phase 2 will receive two different forms of modification that stops the drainage of the interior fields All of the field ditches north of Small Road will be plugged with 50 long earthen plugs which are spaced approximately every 800 feet However the entire length of the interior field ditches between Small Road and Bay City No 4 will be filled to the elevations of the adjacent side of the ditch (not the elevation of any spoil material) The complete fill in these ditches will restore the overland flow necessary to restore /re establish the flow within the historic Gum Swamp Run headwater valley and stream The roadside ditches will be plugged every 650 feet and will coincide with the intersection of each field ditch with the roadside ditch The sod needed to create the interior and roadside ditch plugs will be generated from borrow areas adjacent to plug location but at least 100 feet away to minimize ground disturbances in the area of the plug The sod needed for the plug will be removed from the borrow area and the void will be filled with the organic top sod from the perimeter ditch work or other areas within the tobsite The sod needed to fill the field ditches between Bay City No 3 and Bay City No 4 will be generated from any spoil adjacent to the ditch that is still present and then with the sod excavated from the bypass canal located along the north property line The sod will be placed in the field ditches until the grade reaches the elevation adjacent to the ditch with allowances made for compaction and settling The borrow area along the north perimeter of this phase which is also the projects north property line will serve as a by pass ditch for the incoming waters from areas east of Phase 2 to the SR1002 canal located on the west boundary of Phase 2 A remnant headwater valley running north south exists near the middle of the Phase 2 portion of the site in the upper northwest corner along Benfewell Road After restoration this headwater valley will receive excess runoff and begin flowing to the north end of the site To restore the natural surface flow that is currently blocked by the existing roads at grade crossings will be added to the two interior roads Royal and Small These at grade road crossings will lower the existing roadbed and surface down to the grades of the adjacent restored site which will allow the stormwater runoff to follow the historic flow pattern as shown on the LiDAR image When the stormwater runoff reaches the north end of the site it will pond up until it reaches the Compensatory Mitigation Plan 13 PCS Phosphate Company Inc P and U Lands Restoration January 2012 height of the overflow spillway which discharges the water into the by pass ditch located along the north property line The perimeter ditch along the eastern boundary of the project adjacent to Peele Road will receive a portion of the water discharged from the Parker Farm and also can receive water from the areas east of Phase 2 Water within this proposed eastern perimeter ditch will flow to the north and will be connected to the by pass ditch that flows to the west along the northern border of Phase 2 and the project The northwest portion of the Parker Farm was historically part of the drainage basin of Gum Swamp Run To capture as much of the historic basin area of Gum Swamp Run as possible the current short discharge canal to Small Road from the northwest corner of the Parker Farm will be filled When this canal is filled the historic discharge point will then be re established along 700 feet of land where the western boundary of the Parker Farm is contiguous with the P Lands This diffused flow will enter the P Lands at the upper headwaters of Gum Swamp Run beyond the northern tip of the Casey Tract The upper end of the headwater valley of Gum Swamp Run will be reconstructed mostly by the re delivery of water to the existing valley Minimal earthwork will be necessary to remove flow obstructions from silviculture operations and to restore the signature of the stream and valley as shown on LiDAR Review of the Parker Farm design hydrologic data and recent confirmation of existing elevations were utilized to establish the intended discharge elevation and to factor the historic discharge from this portion of the Parker Farm This historic discharge from the Parker Farm will become part of the contributory area included in the restoration of the headwater system of Gum Swamp Run and will complement the restoration of the zero and first order stream components of this system While the Parker Farm spillways and existing roadside ditches divert some of the historic drainage of Gum Swamp Run the restoration of the P Lands provides opportunity to reconnect several hundred acres of the basin currently lost to the system through culverts and roadside ditches The Gum Swamp Run valley within the P Lands is approximately 5 700 feet long and collects approximately 300 acres of runoff within the P Lands and potentially 100 acres from the Parker Farm essentially containing almost the entire historic headwater drainage area Restoration work will include closure of the manmade discharge route (spillway) for the Parker Farm to allow overland flow to reconnect discharge into the Gum Swamp Run valley Detailed UDAR coupled with ponded water evident in the valley on a sequence of recent aerial photographs provide the plan form of the existing channel and valley restoration (refer to Appendix C for photographs) Work for the Gum Swamp Run valley within the P Lands will re establish connectivity with the historic valley in three distinct areas the upper valley the mid valley and the lower valley In the upper valley immediately adjacent to the Parker Farm the work will consist of removal of the stumps from the timber operation fill of the interior field ditches to restore surface flow westward to the mid valley and removal of any spoil material between the P Lands and the Parker Farm Work within the mid valley will include removal of the stumps from the timber operation fill of the manmade ditches and minor grading of the valley to remove any manmade planting beds and furrows which would hinder surface flow Work within the lower valley will include removal of stumps fill of the manmade ditches and the restoration of a low to moderate energy coastal plain stream system within the last 900 feet of the lower valley The presence of a smaller zero order riparian headwater system dust south of the main stem of Gum Swamp Run is also evident on UDAR (Figure 5A) Restoration of this system would include filling the ditches in the valley plugging of those ditches outside the valley and avoidance of unnecessary equipment passes or constructed haul roads which would interfere with the existing valley topography All work in either valley will strive to preserve or mimic the existing system which is frequently evident in recent aerial photographs (Appendix C) Valley widths in the Gum Swamp Run and the zero order valley to the south vary from approximately 1 100 feet wide in the lower Compensatory Mitigation Plan 14 PCS Phosphate Company Inc P and U Lands Restoration January 2012 valley to less than 100 feet wide in portions of the upper valleys All ditches outside the valleys will be plugged The Gum Swamp Run riparian headwater system lies entirely within the P Lands and is suitable for restoration as suggested by recent coastal plain research (Furness and Tweedy 2010 Corps 2007 and Sweet and Geratz 2003) and also contains the four stream dimensions per Ward (1989) and Corps (2011) • Adequate upstream and downstream length (5 700 feet) • Adequate valley width (varies from 1 100 to 100 feet) • Adequate vertical pathways for biotic and hyporheic exchange (variability in surface water and groundwater interface from low to upper valley) • Adequate temporal control (entire headwaters contained within project prescribed vegetation community changes from lower to upper valley adaptive management will address structural stability as necessary) According to Furness and Tweedy (2010) the slope and drainage area indicate that the lower valley portion of the larger Gum Swamp Run itself could support moderate channel formation Their data also suggest that the smaller system is not likely to form an incised moderate energy channel but that flow events may occur with enough frequency to warrant inclusion in the monitoring and projected mitigation yields The geometry of the Gum Swamp Run headwater system and the zero order valley to the south are shown in Table 2 Table 2 Summary of reach /segment characteristics lengths and channel form of Gum Swamp Run and zero order feature to the south Reach Cu- mul'ative � ti c4ntriMutory area Slope Distance C- hhnnel Lower valley (acre) (rise /run) (feet) firm Gum Swam Run Lower valley 270 0 002 985 Moderate Mid valley 186 000096 2087 Poor Upper valley 68 00008 2 500 Poor Zero order UT 80 0 001 1 000 Poor The existing perimeter pipe adjacent to Peele Road at the intersection of Royal Road will be relocated to be in line with the perimeter ditch constructed along the east property line At the west end of the north property line of Phase 2 several large pipes will be added These pipes will connect the large flows from areas east and south of the project as well as the overflow runoff from Phase 2 and transfer these flows from the north property line by pass canal into the SR1002 canal Four NCWRC requested parking lots will be constructed as part of Phase 2 work one at the east end of Small Road at Peele Road one at the west end of Small Road at SR1002 one at northwest corner of Benfewell Road and one at Royal Road between Benfewell Road and Peele Road 533 Phase 3 Work Phase 3 consists of the lands within the P Lands that are west of SR1002 and all of the U Lands The present land use within Phase 3 is timber plantation with the interior road Bay City No 2 oriented east west and other interior roads County Line No 2 and Gum Road oriented north south Perimeter roads include Rodman /Bonner Road to the west and Bay City Road (SR1002) to the east both of which traverse north south County Line Road is the southern boundary and Jaime /Executive Road is the northern boundary for this phase and both traverse east west Interior field ditches drain the water south to County Line Compensatory Mitigation Plan 15 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Road in the P Lands portion where it then flows west into the U Lands The U Lands interior ditches flow east west to the center of the property into the roadside ditches adjacent to Gum Road The Gum Road roadside ditches flow to the north where the water is discharged into South Creek Similar to earlier phases the existing interior ditches will be plugged every 800 — 1 000 feet with a clay material excavated from a borrow pit at least 100 feet from the plug essentially stopping the drainage of the interior portions of the site approximately every 800 feet Material for roadside plugs along County Line No 2 and Gum Road will be excavated from nearby areas no less than 100 feet from the proposed plug Excess topsoil from the construction of the perimeter berm complex will be used to backfdl the borrow areas close to their existing grades Existing offsite drainage within the Phase 3 portion must be maintained from two sources From the east the runoff from SR1002 currently flows through the interior of the site entering at the east end of Bay City 2 From there it flows west to County Line No 2 and then to the south to the ditch on the north side of County Line Road This north roadside ditch of County Line Road then flows to the west picking up inflows from the second source a small area dust south of Gum Road At Gum Road all of the existing offsite flow turns to the north in the east roadside ditch of Gum Road and then outfalls via an existing culvert into South Creek These existing offsite flows will be maintained by the proposed perimeter ditch and berm system along SR1002 and along the north side of County Line Road A proposed ditch and berm will be constructed on the east boundary adjacent to SR1002 The offsite drainage from this area will be collected by the proposed ditch along the east boundary and then flow south to County Line Road The proposed ditch along the north side of County Line Road will transport the water to the west to the intersection of Gum Road At Gum Road the existing offsite inflow from the small area to the south of Gum Road will loin the flows from the east The new proposed perimeter berm complex will be constructed heading west from the intersection of Gum Road and County Line Road along the south property line of the U Lands Where the proposed perimeter ditch meets the west property line of the U Lands the ditch will be connected to the ditch on the west side of Rodman Road Here the existing flows from the east will loin into the existing flows coming from south of County Line Road and west of Bonner Road and will flow to the north to Jaime Road where they will pass under an existing culvert into the existing canal along the north side of Jaime Road This existing canal along the north side of Jaime Road flows a short distance to the east until it connects with South Creek The inflow into South Creek is also at the intersection of Gum Road and Jaime Road All three of the interior roads Bay City No 2 County Line No 2 and Gum Road will remain after the restoration work is complete but the roadside ditches adjacent to each of these roads will be plugged A perimeter berm will also be constructed as part of the perimeter ditch system The proposed perimeter berm will prevent the surface water within the restoration site from discharging into the perimeter ditch system The perimeter berm will be built with the material that is generated from the construction of the proposed perimeter ditch system along SR1002 and the extension of County Line Road west of Gum Road or from the expansion of the existing ditches along the north side of County Line Road The proposed perimeter ditch and berm heading west from Gum Road and County Line Road will also have a public road built on top of the berm This proposed road will maintain access to Bonner Road from SR1002 in lieu of having public access through the U Lands On the west boundary of the U Lands the perimeter berm complex will also have a road that will be utilized by the proposed easement holder NCWRC for access to the proposed parking area located along the north boundary of the U Lands The Phase 3 spillway elevations are set using the same analyses as in earlier phases of the project so that standing water will not compromise the survival of planted vegetation stems An at grade crossing will be built at the north end of Gum Road to allow the water from the west side of Gum Road to flow to the east side where the water will outfall to South Creek The existing culvert located in the east ditch of Gum Road will be replaced with a Compensatory Mitigation Plan 16 PCS Phosphate Company Inc P and U Lands Restoration January 2012 new culvert downstream of the proposed spillway The existing culvert and riser located in the north side of County Line Road at the western boundary of the P Lands will be removed The culvert that transfers the offsite discharge from the south of the U Lands at Gum Road will remain Three NCWRC requested parking lots will be constructed within the project site in Phase 3 at the east end of Bay City No 2 near the intersection of County Line No 2 and County Line Road and near the intersection of Executive /Jaime Road with Gum Road at the north end of the U Lands 6 0 HYDROLOGY 61 Hydrologic Models The DRAINMOD computer program was used to predict the long term water table elevations and the sites ability to meet the hydropenod criteria This program was created by Dr R Wayne Skaggs in 1978 at North Carolina State University DRAINMOD is a computer simulation model developed for soils with shallow water tables The model is based on a water balance in the sod profile and uses approximate methods to quantify the various hydrologic components such as infiltration surface roughness surface runoff deep and lateral seepage crop type and evapotranspiration It has been tested and found to be reliable for a wide range of sod and climatological conditions (Skaggs et al 1981 Gayle et al 1985 Fouss et al 1987 Rogers 1985 McMahon et al 1987 and Susanto et al 1987) 62 Water Budget The objective of a water budget is to document the water table elevations relative to the ground surface The location of the ground water relative to the ground surface is an indicator of several key functions for both wetland restoration and agriculture For restoration the location of the water table relative to the ground surface will determine the hydropenod For agriculture these key functions include crop stress and access into a farm field A water budget was created using DRAINMOD to calculate the amount of water present on the site Wetland hydrology has two parameters that must be present to determine wetland status a volume of water must be present so that the depth of the water table is within 12 inches of the ground surface and the time in number of days for which this condition is met The program using an hourly time step calculates the amount of water the site receives and then calculates the amount of water lost When there is more water received than lost the elevation of the water table rises by the calculated amount when more water is lost than received the water table recedes by the calculated amount The program can be set to count the number of days that the water table is within 12 inches of the ground surface When calculated over a long period of time such as 20 years the water budget can be used to see how seasonal patterns of water level fluctuations (inflow outflow and storage) may affect the hydropenod at a given site 621 Water Budget Inputs Meteorology. Evapotranspirat7on. and Soil Data Detailed long term meteorology and evapotranspiration records are required for use in DRAINMOD Weather data from nearest NOAA weather station located at the PCS Phosphate facility at Aurora NC approximately 10 miles to the north of the project area (NOAA Station Aurora 6N) were used as inputs for the model In situ measurements were performed using an Amoozemeter on the major sod types to determine the lateral permeabdities Laboratory testing was completed to determine sod water characteristics 622 Water Budget Output Long term water budgets were calculated using the yearly summary from DRAINMOD The water budget shows the total rainfall for a given year (input) and then shows the quantity infiltrated the quantity lost to evapotranspiration the quantity lost to drainage(subsurface flow) and the quantity lost to runoff (surface flow) The basic relationships between the categories are as follows Compensatory Mitigation Plan 17 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Input to system = Rainfall (R) Rainfall volume captured by the surface roughness and local storage = infiltration (F) Volume in excess of the volume infiltrated = runoff (surface runoff) (RO) Two losses can occur to the volume infiltrated they are either lost through subsurface drainage or evapotranspiration The volume infiltrated is the volume used to lengthen the hydropenod of the site The site has been designed to increase the surface roughness that will detain the rainfall long enough for infiltration to occur In years with minimal rainfall the volume infiltrated as a percentage of rainfall is high Conversely in years of significant rainfall the volume infiltrated as a percentage of rainfall is low Results from DRAINMOD are not a detailed design tool but are typically used for general confirmation of the ability of a site to be restored to a wetland During the design phase simulations were run for the nearby PCS Bay City Farm mitigation site which like the P and U Lands is also underlain by mostly Ponzer soils (60 and 80 percent respectively) These simulations were consulted along with site specific monitoring well data collected in the P Lands perimeter ditches and the interior 70 PLANTING DESIGN The planting plan for the P and U Lands has been designed to reflect soil characteristics field observations expected hydrology and to a lesser degree seedling availability To accommodate varying hydrologic regimes as a result of avoidance of hydrologic trespass pine timber and stump removal and variable sod pH the planting zones and species mix were further refined Wetland community types found in North Carolina Wetland Assessment (NCWAM) Method Version 4 1 (NC Wetland Functional Assessment Team October 2010) and the Classification of the Natural Communities of North Carolina Third Approximation (Shafale and Weakley 1990) were also used to develop specific community types In addition the United States Department of Agriculture s (USDA) website and plants database was consulted (http //plants usda gov /lava /) as a source of plant tolerances characteristics and occurrence Survival results from several monitoring reports of other PCS mitigation sites constructed on similar sods were also utilized A total of eight planting zone /community types are shown in Figure 9 and include • Rivenne swamp forest (Zone 1 historic upper reach of South Creek west of Gum Road in the U Lands historic upper reach of Gum Swamp Run on east side of SR1002 in P Lands) • Headwater forest (Zone 2 lower valley areas upstream of South Creek in U Lands Gum Swamp Run and a small zero order valley to the south of Gum Swamp Run and the UT to South Creek in P Lands) • Non rnvenne swamp forest (Zone 3 large interstream flats in U and P Lands) • Pond pine pocosin bay forest (Zones 4 and 4A historic areas of pond pine /pocosin vegetation in U and P Lands) • Hardwood flat (Zones 5 and 6 based on elevation differences and soil types in U and P Lands) • Swales (filled or plugged interior ditches likely to display wetter hydropenods than surrounding areas or lower areas near the 10 5 foot outfalls Zone 7 in U and P Lands) and • Riparian headwater valley (Zone 8 Gum Swamp Run in P Lands) The planting plan for Phase 1 needed to be completed by mid summer 2011 in order to reserve stems at the nurseries for 2012 planting and was completed prior to the discovery of excessive wood chip depths and the decision to pile chips in certain areas The field south of Bay City No 1 Compensatory Mitigation Plan 18 PCS Phosphate Company Inc P and U Lands Restoration January 2012 experienced very poor sprouting of the seed mix required by the sediment and erosion control permit Although sprouting was likely compromised by prior dry conditions and little subsequent rainfall this field was also found to have very low sod pH values and large areas of chip materials greater than 4 inches in depth To compensate for potential low survival due to the low sod pH and chip depths Zone 4A was designed to be planted at a density of 680 stems per acre ( -8 x 8 feet) Areas of Phase 1 which had chips distributed prior to the decision to either remove all chips from the site or leave stump piles and in which chip depths were more tolerable will be planted at a density of 538 stems per acre ( -9 x9 feet) All other portions of the site regardless of phase or planting zone will be planted at a density of 436 stems per acre ( -10x 10 feet) with the exception of Zones 3 and 4 (which contain Atlantic white cedar) which will be planted at 538 stems per acre The phasing of restoration over three years will allow for further adjustments in planting density and species composition if early results of monitoring so indicate or additional impediments are encountered A variety of wetland hardwood tree species were considered for planting In addition to trees some shrubs (no more than 10 percent of stems) will be incorporated into the plan to promote and offer a diverse landscape Restored areas will be planted with bare root seedlings and some tublings of native tree and shrub species that are known to have occurred historically in either Beaufort County the project area specifically or on sites in similar landscape position with similar sods Appendix E lists the species intended for each zone Weyerhaeuser s timber rights in the U Lands expire in 2012 and this mitigation plan and the Corps PCN application of which it is a part will be submitted prior to that expiration However depending on the timber market and other aspects of the Weyerhaeuser operation it is possible that existing forested areas slated for harvest will not be cut prior to the expiration of their rights If this is the case these forests will not be cut and replanted by PCS as they contain mature specimens of desired species along with other less desirable species including nuisance species Figure 9 assumes these areas will be cut by Weyerhaeuser by 2012 and replanted by PCS Also a decision may be made in the future to grind the vegetation in the early successional forest within the preservation areas of the northern P and U Lands west of the Bay City Farm and to replant with more desirable tree species for enhancement (rehabilitation) credit 8 0 MONITORING DATA COLLECTION Periodic monitoring is necessary to document the status of restored wetlands and to document success criteria These efforts include installation of and data collection from rain gauges and groundwater wells periodic photographic documentation vegetation monitoring and headwater stream profile evaluations and monitoring of flow where appropriate Monitoring will last a minimum of five years or until success criteria have been successfully documented Photographs will be taken periodically throughout the monitoring year to visually document hydrologic conditions stability vegetation growth and the evolution of the restoration site Permanent photo point locations will be established and marked to facilitate photographs being taken at the same locations each monitoring year Figure 10 depicts the various monitoring locations /types as described below 81 Vegetation Monitoring Plots Monitoring plots will be established on approximately 2 percent of the restoration area to monitor planted stems Individual plots will be 60 feet x 225 feet in size (approximately 0 3 acre) Plots will be located to represent a range of conditions across the restoration site The plots will be oriented from the well corner using a table of random azimuths however azimuths may be slightly adjusted if necessary to avoid obstructions avoid crossing of Gum Swamp Run and /or remain within the parcel boundaries or within a specific zone Immediately after planting has occurred planted stems within vegetation plots will be marked with poles and when leaf out has occurred each tree /shrub will be tagged identified and Compensatory Mitigation Plan 19 PCS Phosphate Company Inc P and U Lands Restoration January 2012 counted Each year after restoration and prior to leaf fall in autumn vegetation plots will be sampled for survival No more than 10 percent of the site will also be planted with suitable woody shrub species which will also be tagged and tracked separately from planted trees Near the end of vegetation monitoring all living stems of woody vegetation within each plot will be identified and counted including planted stems and colonized species General observations will be made during sampling to describe the survivability of stems outside the vegetation monitoring plots and other vegetation planted across the site (live stakes transplants permanent seeding etc ) 811 Volunteer Woody Vegetation Sampling To further describe composition of the vegetative community on the site and to assist in the assessment of colonization by other species (including nuisance species) at the fifth year all living stems of woody vegetation within each tree and shrub plot will be identified and counted including planted stems and volunteer colonizing species Non planted individuals of characteristic wetland species are an important component to the reestablished wetland as they serve as additional indicators of appropriate hydrologic regimes and vegetative success and provide increased diversity density and cover type Such data may also indicate the vigor of the existing seed bank and alter the species mix selected for subsequent phases Colonizing volunteers will be tracked separately from the planted trees and shrubs and not counted toward the success criterion Table 3 contains a list of acceptable volunteer species in the re established wetlands P and U Lands site by habitat type Table 3 List of appropriate woody species with the potential to colonize the site ( planted species which may colonize) Habitat types NRSF= non nvenne swamp forest RSF = nvenne swamp forest BLH= bottomland hardwood forest HF= hardwood flat HWF= headwater forest PO= pocosin 812 Nuisance Vegetation Monitoring In accordance with other PCS mitigation site plans or permit conditions and methodology at Years 2 and 3 nuisance monitoring plots will be established to quantify the presence and estimated percentage of sweet gum red maple and loblolly pine These nuisance species monitoring plots will be smaller than the Compensatory Mitigation Plan 20 PCS Phosphate Company Inc P and U Lands Restoration January 2012 American elm Ulmus amencana BLH HF RSF (piedmont) American holly Ilex opaca HF Box elder Acer negundo BLH Fetterbush Lyon►a luc►da NRSF PO Gallberry Ilex coriacea RSF PO Inkberry Ilex glabra RSF NRSF High bush blueberry Vacc►n►um corymbosum NRSF RSF Coastal (swamp) doghobble Eubotrys racemosa RSF PO Pond pine Pinus serohna HWF NRSF PO Red bay swamp red bay Persea borbon►a P palustns NRSF PO Southern bayberry Morella carohn►ens►s NRSF Sweetbay Magnoha virg►n►ana NRSF PO Sweet pepperbush Clethra aln►foha NRSF Tulip poplar L►r►odendron tulip►fera NRSF RSF HWF HF Wax myrtle Morella cenfera NRSF RSF HWF Habitat types NRSF= non nvenne swamp forest RSF = nvenne swamp forest BLH= bottomland hardwood forest HF= hardwood flat HWF= headwater forest PO= pocosin 812 Nuisance Vegetation Monitoring In accordance with other PCS mitigation site plans or permit conditions and methodology at Years 2 and 3 nuisance monitoring plots will be established to quantify the presence and estimated percentage of sweet gum red maple and loblolly pine These nuisance species monitoring plots will be smaller than the Compensatory Mitigation Plan 20 PCS Phosphate Company Inc P and U Lands Restoration January 2012 vegetation monitoring plots and occupy a 1 meter square area anchored by one corner of each tree plot at the plot end away from the monitoring well All volunteer woody stems will be counted within the nuisance monitoring plots If necessary based on results of the two years of nuisance monitoring a remedial action plan for control of the nuisance species will be developed for approval (See Section 9 3) In Years 4 and 5 nuisance monitoring will continue and dependent on results the remediation plan may be implemented 82 Hydrology and Rainfall Monitoring More than a year of pre restoration hydrology data have been collected for portions of the P Lands and extensive post monitoring of hydrology will occur in order to determine the success of restoration of wetland hydrology Electronic and manual groundwater monitoring wells will be installed across the project site to document the post restoration water table (at an approximate density of one well /15 acres) Data from these wells will be downloaded monthly These data will determine if the water table at the project site has been elevated sufficiently to restore wetland functions Data from an automated rain gauge are currently available from the Bay City Farm mitigation site The automated rain gauge may be moved from the Bay City Farm to a suitable location on the P or U Lands once restoration of Bay City Farm mitigation site is complete The gauge is currently installed in an open area a minimum of 100 feet from any tall tree or buildings Two other rain gauges will be installed one near the eastern end of the project and one near the western end in order to keep a rain gauge within one mile of the area it represents Rain gauge data will be used in conjunction with data from the nearby Aurora NOAA weather station at PCS to determine rainfall during the monitoring period Long term WETS tables and precipitation data from the Aurora NOAA weather station will be used annually to determine periods of normal rainfall (htto / /www wcc nres usda Qov /climate /wets doc html #Section1) 83 Riparian Headwater Systems (Zero to First Order Stream Systems) Greater than 70 percent of the total stream miles in most watersheds consist of headwater streams which underscore their importance to overall watershed health Collectively small headwater streams and their associated wetlands contribute largely to the attenuation of runoff and sediment assimilation of pollutants and carbon production and delivery for downstream areas (Rhemhardt et al 1999) However determining specific measurable attainable reasonable and trackable success criteria to the restored functions can be difficult especially when working with headwater systems in the Coastal Plain Because of their small size and location in the watershed they are very susceptible to seasonal changes and the effects of drought Furthermore while headwater systems are important for overall watershed health their functions in the landscape are variable and baseline data on unaltered headwater streams in the southeastern Coastal Plain are not currently available This project proposes to restore lost headwater stream aquatic functions as well as riparian and non riparian wetland functions (refer to Section 5 2 and Table 1) Zero order headwater streams are often part of a wetland system and share some similar measurable functions Table 4 lists the restored functions that are proposed to be tied to success at the P and U Lands and how those functions will be monitored and measured These functions were based on information provided in Functional Objectives for Stream Restoration (Fishenich 2006) Table 4 Restored wetland or stream functions and measurement methods Compensatory Mitigation Plan 21 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Headwater stream processes Upstream /downstream . Valley cross sections • Visual documentation Riparian succession Temporal . Vegetation plots Surface water storage Vertical and horizontal . Hydrologic monitoring wells semi continuous Compensatory Mitigation Plan 21 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Subsurface water storage Vertical . Hydrologic monitoring wells semi continuous Landscape pathway for plant and Temporal . Vegetation plots animal migration Flow pathway Horizontal . Photo documentation physical evidence of flow event low flow aauoe In the riparian headwater system valley of Gum Swamp Run semi continuous monitoring wells will also be installed in perpendicular arrays across the valley to assist in identification of the two types of riparian wetlands (headwater forest and riverine swamp forest) and to increase density of data points for analysis of hydrographs up and across the valley Arrays will be approximately 500 feet apart (along the long axis) of the valley (at least 3 arrays per 1 000 foot reach upstream center downstream) The center well in each array will be in the perceived lowest part of the valley and the number of wells in the array will be dependent upon width and slope of the valley Documentation of flow in the Gum Swamp Run riparian headwater system for the success criterion is not limited to the growing season Qualitative data will be collected during the on site investigations to document surface water flow This shall be accomplished using photographic evidence of observed flow coupled with a preponderance of field indicators of recent flow events in the form of a natural line impressed on the bank shelving changes in sod characteristics destruction of terrestrial vegetation presence of litter and debris wracking vegetation matted down bent or absent sediment sorting leaf litter disturbed or washed away scour deposition bed and bank formation water staining or change in plant community All field indicators present will be documented in each monitoring report Quantitative flow data may also be collected by portable or stationary flow equipment All quantitative and qualitative data will be used to document the upstream limit of flow which will provide the basis for length of successful zero order stream restoration (i a valley length) Observed events or effects from events will be used to calibrate correlate and infer flow of unobserved events whose presence is noted in monitoring well hydrographs 84 Hydrogeomorphic Monitoring of Streams and Valleys Longitudinal profiles will be established for the riparian headwater system valley and the restored Gum Swamp Run low to moderate energy reach during the as built survey There will also be three cross sections established per 1 000 foot reach of stream /valley restoration For the riparian headwater valley these cross sections will be measured for the as built report and at years 3 and 5 if channel features form For Gum Swamp Run low to moderate energy segments the cross sections will be measured for the as built report and annually during the monitoring period The Gum Swamp Run valley has been designed to remain stable with minimum changes through the monitoring period however these cross sections may show minor changes in flow patterns as the headwater riparian valley systems develop Contingencies as required will be addressed pursuant to Section 10 0 of this plan 85 Control Forest Wetlands Several forested wetlands are available in the immediate area that may serve as hydrology controls so that regional hydrological conditions and responses can be separated from those unique to the site They also may be used to identify plant species and hydrologic regimes that could be used in restoration of the site Available Weyerhaeuser data from their hardwood timber operations prior to conversion to silviculture was used to identify historic tree species which occurred on the site and potential proportions An early candidate for control forest was the Casey Tract which lies between the Parker Farm to the east and the P Lands and is underlain by similar sods and located in similar landscape position to the middle and southern portions of the eastern P Lands However after months of consideration the owner of the Casey Tract recently declined to allow PCS to lease any portion of the property for control monitoring wells The bottom portion of Section I and the top portion of Compensatory Mitigation Plan 22 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Section J of the Parker Farm are shown as underlain by Wasda sods (as shown in the county sod survey) and are potential control forests Also an area of mature successional hardwood forest underlain by Ponzer sod (as shown on the county sod survey) is located on the west side of Rodman Road and may serve as potential control forest especially for the Ponzer portions of the project at a slightly higher elevation In addition to these two potential wetland forests current wetland areas of the P and U Lands may also serve as regional hydrology controls Potential control wetland forest areas are shown on Figure 11 and Figure 5B (regional LiDAR) 90 ECOLOGICAL PERFORMANCE STANDARDS While any given mitigation site may actually restore many aquatic functions some of these functions are more difficult to quantify within the timeframe of the monitoring period and therefore are not suggested for use in determination of success criteria However periodic monitoring is necessary to ensure that the restored streams and wetlands are functioning as intended and to document success criteria for chosen functions These monitoring efforts are described above and will last a minimum of five years and beyond if necessary until success criteria have been successfully documented Figure 12A and 12B depict the potential mitigation yield expected from the site as listed in Section 2 0 and as described in the performance standards below for various aspects of the project 91 Annual Reports The performance of the site will be summarized in yearly monitoring reports submitted by 1 June following each monitoring year Reports will include a summary of the data collected during the monitoring year (text tables and graphs) comparison to data from past years and reference locations and assessments of whether the site is on trajectory for meeting defined success criteria Monitoring reports will be in general compliance with Corps Regulatory Guidance Letter (RGL) 08 03 (US Army Corps of Engineers 2003) 92 Vegetation Ecological Performance Standards Restoration of the wetland vegetation will be deemed successful when at least 260 planted trees per acre (using the total acreage planted in trees) are alive after five years or after performance criteria have been met whichever is longest Riparian buffer restoration in Gum Swamp Run will be deemed successful if at least 320 trees per acre are alive after five years 93 Nuisance Species Sweet gum red maple and loblolly pine will be monitored in Years 2 and 3 in the nuisance plots described in Section 8 1 2 If such monitoring indicates that one of these species alone or in aggregate represent 20 percent of the site an approved remedial plan will be developed and monitoring must occur again in Years 4 and 5 If monitoring in Years 4 or 5 determines that one of these three species alone or in aggregation comprise over 20 percent of the total plant composition on the site and is more than twice the height of the planted trees control actions pursuant to the approved remediation plan will be implemented 94 Wetland Hydrology Ecological Performance Standard and Growing Season Hardwood flats at the P and U Lands will be considered successful with a minimum of six (6) percent hydropenods (calculated from consecutive days with water level no deeper than 12 inches from the sod surface) during the growing season under normal rainfall conditions Rivernne swamp forest non nvernne swamp forest pond pine pocosin bay forest and swales will be considered successful with a minimum of 10 percent hydropenods calculated as above Riparian wetlands adjacent to streams or within riparian headwater systems (headwater forest) will be considered successful with hydropenods of 12 5 to 25 percent calculated as above and will be contained within the valley as determined by DDAR as built survey data and agency concurrence All hydropenods will be evaluated using three month rolling totals and normal rainfall conditions will be determined from the WETS tables for Aurora Rainfall will be collected monthly at electronic rain gauges which record every 0 01 inch of precipitation Compensatory Mitigation Plan 23 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Under the 2010 regional guidance from the Corps of Engineers for wetland hydroperiods the growing season for Beaufort County is 28 February to 6 December or 282 days (WETS table for Beaufort County first/last freeze date 28 degrees F 50 percent probability) (US Army Corps of Engineers 2010) At the suggestion of Corps Washington regulatory field office monitoring wells will be installed no later than 1 February but the data collected between 1 February and 28 February will not be part of the hydropenod calculation for success however February data will provide important information related to analyses of site hydrology during the early growing season 9S Stream Restoration Ecological Performance Standards Success in either the riparian headwater valley or the low to moderate energy stream segment of Gum Swamp Run will be achieved if two flow events occur per year in three years out of five during normal rainfall conditions Linear feet of credit will be based on most upstream location of flow documented at least twice per year in 3 years out of 5 during normal rainfall throughout the calendar year 96 Control Forest Wetland Data collected from on site or off site control forests (vegetation and hydrology) will be used as a guide to infer and compare behavior of applicable portions of the mitigation site (similar sods and landscape position) and to track evidence of regional conditions Because of differences in maturity and disturbance characteristics of the mitigation site these data will not be used for strict success or performance parameters 97 Reference Stream Reach and Reference Riparian Headwater System The reference reach analysis performed on coastal headwater systems in NC (Furness and Tweedy 2010) and additional survey data collected on Porter Creek in Beaufort County were used to develop an appropriate design approach for the low to moderate energy reach and riparian headwater valley of Gum Swamp Run in the P Lands These reference reaches vary in slope watershed size landscape location riparian maturity and soils and therefore may not be directly comparable to the conditions on the newly constructed Gum Swamp Run Well and flow gauge data collected on the poorly and moderately defined valley segments on the UT to Bailey Creek UT to South Creek and upper Porter Creek will be used to document surface water and flow events during the monitoring period These three creeks are in closer proximity than the reference reaches in the Croatan Forest and in similar landscape position to Gum Swamp Run Additionally knowledge gained from the Hell Swamp mitigation site stream /valley design and construction has also been utilized Data collected from stream reference sites will be used as a guide to infer and compare flow events of the mitigation site Because of differences in maturity and disturbance characteristics of the mitigation site these data will not be used for strict success or performance parameters 98 Areas Mapped as Upland on the Beaufort County Soil Survey There are approximately 4 acres of non hydric Tarboro soils shown on the Beaufort County soil survey within the project (Figure 3) These areas are located within the P Lands along the eastern edge of SR1002 As part of the watershed approach to compensatory mitigation as described in CFR 332 3(c)(2) these uplands will contribute to or improve the overall ecological functioning of aquatic resources in the watershed These areas will provide some similar functions to the restored wetlands e g groundwater recharge nutrient filtration and uptake and surface runoff attenuation As these acres will be planted with a mix of upland and mesic wetland flat hardwood species they will also increase habitat variety 99 Summary of Performance Criteria Based on specific measurable attainable reasonable and trackable parameters the ecological performance standards or success criteria required for the types of mitigation provided at the P and U Lands are shown in Table 5 Compensatory Mitigation Plan 24 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Table 5 Performance criteria and methods summary TyNe �f mit �ati�n �erf�rmance crMet V Dicumen'tation C•ntr�ls meth��ls Riparian wetland restoration /re establishment (headwater forest nvenne swamp forest) Riparian wetland enhancement (rivenne swamp forest headwater forest) Non riparian wetland restoration /re establishment or rehabilitation (non nvenne swamp forest hardwood flats pond pine pocosin bay forest swales) Non riparian wetland enhancement (non rivenne swamp forest) Zero order stream restoration /re establishment within riparian headwater system >_12 5 to 25 percent hydropenod within the topographic valley Survival of 260 planted trees per acre (using acreage planted in trees) of 5 year old planted woodv stems Uplift of hydrology function >_6 percent hydropenod for hardwood flats ?10 percent hydropenod for other three types' Survival of 260 planted trees per acre (using acreage planted in trees) of 5 year old planted woodv stems Uplift of hydrology function Linear feet of credit based on most upstream location of flow documented at least twice per year in 3 vears out of 5 Semi continuous monitoring wells (arrays) onsite rain gauge Vegetation plots on 2 percent of the site Fill or plug of interior and roadside ditches Semi continuous monitoring wells (1 well /15 acres) onsite rain gauge Vegetation plots on 2 percent of the site Fill or plug of interior and roadside ditches Photographs of flow conditions 2 (e g sediment deposits debris flows wrack lines sinuosity braided features 28 February — 6 December Aurora NOAA WETS data for normal rainfall valley dimensions as indicated by LiDAR and agency concurrence Annual monitoring USDA NRCS Scope and Effect Guide 1998 USACE Wilmington District webpage definitions 28 February — 6 December Aurora NOAA WETS data for normal rainfall Annual monitoring USDA NRCS Scope and Effect Guide 1998 USACE Wilmington District webpage definitions Corps and DWQ April 2007 Information Calendar year Aurora NOAA WETS data for normal rainfall flow confined to times of Compensatory Mitigation Plan 25 PCS Phosphate Company Inc P and U Lands Restoration January 2012 D'ocumentati�n Tyre �f mifi�ati9n Rerf�rman criteria meta rio- C�ntr s metho�ls First order stream restoration /re establishment within headwater system (low to moderate energy reach) Riparian buffer restoration /re establishment (Gum Swamp Run headwaters and valley) Linear feet of credit based on most upstream location of flow documented at least twice per year in 3 years out of 5 50 feet one or both sides of stream feature shown on USGS or county soil survey or zero order stream segment with 320 trees per acre at maturity (5 years) channel features) semi continuous monitoring well arrays GPS open channel flow monitorinq equipm See zero order above plus two permanent cross sections established at baseline and monitored in years 1 2 and 4 Monitoring for planted tree survival within established plots at years 1 3 and 5 normal rainfall See zero order above 15A NCAC 02B 0260 Tar Pamlico River Basin Mitigation Program for Riparian Buffers DWQ 25 January 2008 Clarification #2008 017 for zero order streams flexible buffer mitigation if approved by EMC as stated in 401 certification dated 15 January 2009 (WQC #2008 0868) 1 With elevations ranging from7 5 to 14 5 feet above MSL the non riparian flats at the P and U Lands will have a range of 2ydropenods increasing downslope into the riparian wetlands Documentation may be for active or past flow conditions may include other agency approved structural elements or use of technical equipment not on list 10 0 ADAPTIVE MANAGEMENT STRATEGIES 101 Adaptive Management Principles of adaptive management are increasingly used as a tool to elevate the likelihood of success of wetland mitigation projects throughout the United States Since ecosystem behavior and natural disturbances cannot always be accurately predicted nor can human mistakes be identified in advance adaptive management provides a somewhat formalized process for the iterative and interactive approach to assessment and management of wetland mitigation projects However adaptive management does not equate to perpetual maintenance Lack of control /ownership of properties upstream of a project is often a factor which can lead to problems with stream restoration In the case of the zero to first order stream restoration of Gum Swamp Run in the P Lands the entire headwaters upstream are contained However there are certain expected natural hazards which might affect successful restoration which include fire flood erosion invasive species and herbivory Strategies to minimize effects from natural hazards and human mistakes include Compensatory Mitigation Plan 26 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Planting errors in spacing density or diversity will be avoided by diligent monitoring of and coordination with planting crews to ensure fidelity to the planting plan An accounting of tree plot and monitoring well numbers and locations will be included in the as built Design flaws may not be caught as early in the process but if monitoring or observation (i a excessive standing water) indicates a potential design problem remediation options will be explored with governing agencies Construction errors will be identified early in the mitigation process with an as built report which contains elevations of key locations such as spillways tops of berms valley inverts and other spot elevations throughout the site Any correction effort will be coordinated with governing agencies such that the intended hydrological regime is met Herbivory on seedlings by rabbits rice and cotton rats and field mice will be reduced by the resident foxes feral dogs and cats hawks and owls in nearby natural areas Reductions in rodent herbivory will be aided by the perches provided by tops of stump piles which will encourage raptor use If monitoring indicates deer numbers are jeopardizing tree survival decisions will be made in coordination with appropriate agencies on what if anything can be done Monitoring wells are often subject to frequent disturbance and occasional destruction by black bears Barbed wire fences may be constructed around the more expensive continuous monitoring equipment as bear deterrents Any flooding from beaver activity will be noted during the monitoring period and beavers and dams will be removed by trapper(s) Sections affected by wildfire during the monitoring period will be assessed for degree of damage and replanted at a spacing calculated to restore specified tree density 102 Long Term Management Long term management will be aided by controlled access gates on all the entrance roads of the property It is anticipated that once the area naturalizes no long term management will be needed beyond seasonal mowing of some access trails 110 FINAL DISPOSITION OF SITE The North Carolina Wildlife Resources Commission ( NCWRC) has agreed to consider transfer of management in perpetuity of the P and U Lands into their Gamelands program and has provided their preferred gate and parking lot locations for public access Although expected formal agreement by the Commission to accept transfer has not yet occurred If for some reason the NCWRC declines to accept arrangements with another suitable non governmental organization or government agency will be made such that a conservation easement in perpetuity is transferred to such organization or agency Permitting agencies will be consulted during the decision and negotiation of final dispensation Compensatory Mitigation Plan 27 PCS Phosphate Company Inc P and U Lands Restoration January 2012 REFERENCES Fouss J L R L Bengston and C E Carter 1987 Simulating subsurface drainage in the lower Mississippi valley with DRAINMOD Transactions of the ASAE 30 1679 1688 Furness Jeff and Kevin Tweedy 2010 Restoration of coastal plain headwater systems lessons learned and performance monitoring Coastal Stream Restoration Concurrent Session 3 17 November 2010 Stream Restoration in the Southeast Connecting Communities with Ecosystems NC State University Raleigh Gayle G R W Skaggs and C E Carter 1985 Evaluation of a water management model for a Louisiana sugar cane field Journal of the American Society of Sugar Caner Technologists 41828 NC Functional Assessment Team 2010 NC Wetland Assessment Method (NCWAM) User Manual Version 4 1 October McMahon P C S Mostaghimi and F S Wright 1988 Simulation of corn yield by a water management model for a coastal plains sod Transactions of the American Society of Agricultural Engineers 31 734 742 Rheinhardt R R Rheinhardt M C Brinson M M and Faser K E 1999 Application of reference data for assessing and restoring headwater ecosystems Ecological Restoration 7 241 251 Rogers J S 1985 Water management model evaluation for shallow sandy soils Transactions of the American Society of Agricultural Engineers 28 785 790 Shafale Michael P and Alan S Weakley 1990 Classification of the Natural Communities of North Carolina Third Approximation North Carolina Natural Heritage Program Division of Parks and Recreation North Carolina Depart of Environment Health and Natural Resources Skaggs R W N R Fausey and B H Nolte 1981 Water management evaluation for north central Ohio Transactions of the American Society of Agricultural Engineers 24 922 928 Susanto R H J Feyen W Diercloc and G Wyseuse 1987 The use of simulation models to evaluated the performance of subsurface drainage systems Proceedings of the Third International Drainage Workshop Ohio State University Columbus Ohio USA Pp A67 A76 Sweet W V and Jens W Geratz 2003 Bankfull hydraulic geometery relationships and recurrence intervals for North Carolinas Coastal Plain Journal of American Water Resources Association Volume 3 No 4 pp 861 871 American Water Resources Association US Army Corps of Engineers 2002 Regulatory guidance letter (RGL) 02 02 Guidance on compensatory mitigation projects for aquatic resource impacts under the Corps regulatory program pursuant to Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act 24 December 2002 US Army Corps of Engineers 2003 Regulatory guidance letter (RGL) 08 03 Minimum monitoring requirements for compensatory mitigation projects involving restoration establishment and /or enhancement of aquatic resources 10 October 2008 Compensatory Mitigation Plan 28 PCS Phosphate Company Inc P and U Lands Restoration January 2012 US Army Corps of Engineers and NC Division of Water Quality 2007 Draft information on stream restoration with emphasis on the coastal plain 4 April 2007 US Army Corps of Engineers 2008 Final Environmental Impact Statement for the PCS Phosphate Mine Continuation Aurora North Carolina Volumes I — IV US Army Corps of Engineers 2010 Regional supplement to the Corps of Engineers wetland delineation manual Atlantic and Gulf coastal plain region Version 2 0 ERDC /EL TR 10 20 Eds J S Wakeley R W Lichvar and C V Noble Vicksburg MS US Army Engineer Research and Development Center US Army Corps of Engineers 2011 Draft stream mitigation considerations for the coastal plain of North Carolina Version 3 15 December Public Notice 19 December 2011 Ward J V 1989 The four dimensional nature of lotic systems Journal of the North American Benthological Society 8 2 8 Compensatory Mitigation Plan 29 PCS Phosphate Company Inc P and U Lands Restoration January 2012 FIGURES PCS Compensatory Mitigation Plan PCS Phosphate Company Inc P and U Lands January 2012 A C, SOUTH CRE CORRIDOR T. CREEK �,I'/ )RR$DOR HOLLO.ELL TRACT BAY C"ORM PHASE It PHASE I P LANDS 35*14 15.04" 1 LONG: 7646'19.20 P LLANDS PHASE IASI 11 PARKER FARM Compensatory Mitigation Plan F-1 PCS Phoshate Company, Inc. P and U Lands Restoration January 2012 U LANDS CASEY TRACT -------- P LANDS ,PARKER FA SECTION I (P U) A .%% + pARKERM FA SECTION J LEGEN P AND U LANDS BOUNDARY SOUTH CREEK CORRIDOR AND 0 5,000 10,000 PARKER FARM BOUNDARY SCALE IN FEET NORTH CAROLINA VICINITY MAP P AND U LANDS SITE LOCATION P AND U LANDS PICS PHOSPHATE COMPANY, INC. SOURCE: SCALE: AS SHOWN !I APP F19-vp BY: DRAWN BY: BFG/TLJ PORTIONS OF THE BOUNDARY PROVIDED BY: ROBERT M. CHILES, NEW BERN, NORTH CAROLINA. JOB #2009096, DATED: 11/19/2009 DATE: 01/27/12 FILE: ANDS-VIC- IL P�N'-JLAN201 AND 02/02/2010 AND BEAUFORT COUNTY GIS DATA WEBSITE 2 WWW.CO.BEAUFORT.NC.US, BEAUFORT COUNTY PARCEL DATA SHAPEFILES, NAD 1983 FEET. C P# 1745.59.32 USGS TOPOGRAPHIC MAP IMAGES, INC STATEPLANE, 4709 COLLEGE ACRES DRIVE SUITE 2 ST NORTH CAROLINA DEPARTMENT OF TRANSPORTATION - INCORPORATED WILMINGTON, NORTH CAROLINA 2840U0 3 TEL 910/392-9253 FIGURE 1 NAD53 , FEET, 1:24000-SCALE, WEBSITE: WWW.NCDOT.ORG ---- ENVIRONYEMTAL CONSULTANTS FAX 910/392-9139 Compensatory Mitigation Plan F-1 PCS Phoshate Company, Inc. P and U Lands Restoration January 2012 A ,W Vie. Y ir I - f f 1i ;; �. t f... .r' ., Or - -1 Compensatory Mitigation Plan F -2 PCS Phosphate Company, Inc. 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P and U Lands Restoration January 2012 Compensatory Mitigation Plan F -9 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 N m M O 3 N W rc¢ rc N F O Uz Z to D m l f` L3 V) < N p m o mn LJ N V) Q z Z U SOP N ww <�iW 2 a d o ��6 rc �• w N v1 < too,, 4Z J J 2 �[+ OT aD e O O O N n IO J Z O d Q O ti ^ ■Y Z Z V) m 3 P: g Z a� m U� _ . <- a a 0O pO O < p p O_ d < O o < ¢ m a ~ v Z O O i p ; ; °¢` O w J I W < Q a ti Z Q Z U) C R m g I z a a 2 a w a- a d Z N n♦ m m n a cc 3 vii d w C m 0 O d z z z 0 0 0 N N N z z 0 0 N N z 0 N :i d m Nei 4 Z I < O O Q � - y y5 O �f�N 0 % afi8 5€;y 0. 0 o _ to W 0 C Z m z d w m v BAY CITY ROAD /S•R. P Z w v m U 0 n m .mom.. S. . o YmY vS o 0 n a m v a o - z z 0 w < m o. o rn w a M s ti 3$ o o m KK z 7 m m D = C I rc x z 0 p<Om 3 Ll Z W W d ¢ m O a N N N N N iV1 � � Y � a w Y Y m N H33bJ 9 rc w m wi N o `� H1008 o S w w O N W J 4 ¢U o a Wm o w yj o. foJ N O 8 N �S a (� ow 0 <U O 4 w Z w 3ti W z O m y O �13 q< w Z a 0O pgO V m e a �Ww � �O � z a 3 3 gog g0g x0 O G Y Wwc�i ,.� x z 3 3 00w ROAD /RODMAN ROAD i1 In m 99 ¢ x w.5 z z z i z z >� BONNE d a w K m o^ wv o.zo 0Gm 3 a 0 0 N N 0 0 N N 0 0 N N WW 7 Compensatory Mitigation Plan F -9 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 PCs Compensatory Mitigation Plan F-10 PCS Phosphate Company, Inc. P and uLands Restoration January 22 C'4 ` e §( d \ _ m � B § E! ° ! ®§ § z�b }\ �� ƒ \ ( \ k § § e gy© |/ k §ƒ! §(2k § , E §)0§§ } }k \ \� ( /�,���, ) ; ƒIj§ \({ §2\ ` =Xt k=© | 2 ,J N 2 \| \ N/ 2 LD7} q | § § \)) \ §§§ i« . \ \ , 0 IfP ,/ \© .r,-vy R,',� } - D �,) 2§ � /tG \ \ \ \ \ \ \ \} 0 j ER _D __ _, PCs Compensatory Mitigation Plan F-10 PCS Phosphate Company, Inc. P and uLands Restoration January 22 RESERVCO PARCEL UNDERLAIN BY PONZER SOIL AREA UNDERLAIN BY WASDA SOILS EAST OF PEELS ROAD KEY MAP SOURCE POU M OF THE BOUND- PROVIDED BY: ROBERT M. CHILES. NEW BERN. NORM CAROLINA JOB /2009096, DATED: 11/19/2009 AND 02/02/2010 AND BEAUFORT COUNT- GIS DATA WEBSITE WNW. CO.BEAUFORT.NC.US. BEAUFORT COUNT' PARCEL DATA SHAPEFNES. NAD 19v =1 SOIL SUR OF PAMUCO COUI -. NORM CAROLINA US DEPNiTMEW OF AGRICULTURE NATUIUL RESOURCES CONVERSA -CE. ISSUED: AUGUST 1987 SOIL SURVEY OF BEAUFORT COUNTY. NORM CN OUL US DEPARTMENT Of AGRICULTURE I-- RESOURCES CONVERS - SERNCE. ISSUED: SE- TEMBER 1995 L G N SOILS SYMBOL SOIL NAME Ap ARAPAHOE BH BELHAVEN Po PONZER To TOMOTLEY Wd WASDA RESERVCO AND PARKER FARM FORESTED WETLANDS AS POTENTIAL CONTROLS P AND U LANDS ALL PHASES PCS PHOSPHATE COMPANY, INC. SCALE: AS SHOWN DATE: 01/27/12 Z R 4M W�N V11M010R. NORTH" BY: DRAWN BY: TLJ /BFG FILE: -D-LAN - FRTDWET PCN JAN2i CP#1745.59.32 ��ARO F 2 i%5sz -9isa FIGURE 1 1 Compensatory Mitigation Plan F -11 PCS Phosphate Company, Inc. P adn U Lands Restoration January 2012 Gi BENFEWE 1 ROYAL ROAD ROYAL ROAD N, ` — SMALL ROAD _ BAr NO. 4 }I P LANDS i, P & U LANDS BOUNDARY (3,666.92 ACRES) (TOTAL ACREAGE INCLUDES 12.52 ACREAGE OF RIGHT —OF —WAY ALONG STATE ROADS RESTORATION (3,120.85 ACRES) WETLAND RE— ESTABLISHMENT (2,656.85 ACRES) WETLAND REHABILITATION (380.59 ACRES) EXISTING FOREST (11.59 ACRES) DITCH /CANAL PLUGS (9.81 ACRES) OPEN WATER (60.04 ACRES, DOES NOT INCLUDE 1.97 ACRES OF SOUTH CREEK) - GUM SWAMP RUN AND RIPARIAN HEADWATERS (8,889.45 LF WITH UP TO 20.4 ACRES OF TAR— PAMUCO RIPARIAN BUFFER RESTORATION) ZERO ORDER STREAM/VALLEY RESTORATION (7,989.45 LF) LOW TO MODERATE ENERGY STREAM RESTORATION (900 LF) WETAND ENHANCEMENT (26.10 ACRES) WETLAND PRESERVATION (245.36 ACRES) POTENTIAL LATERAL DRAINAGE EFFECT BEYOND THE BERM COMPLEX FOOTPRINT (102.53 ACRES) (DISTANCES VARY WITH SOIL TYPE AND DITCH /CANAL DIMENSIONS) ROADS AND ROYAL ROAD PARKING AREA (47.34 ACRES) BERM COMPLEX AND OTHER PARKING AREAS (112.22 ACRES) SMALL ROAD LA, Compensatory Mitigation Plan F -12A P and U Lands Restoration P LANDS \`.P, \1 v6 • THIS ACREAGE REPRESENTS MAXIMUM OPEN WATER. SOME OF THESE DITCHES MAY BE FILLED OR PARTIALLY FILLED IF MATERIAL IS AVAILABLE. ® 1.500 0 1.500 Feet POTENTIAL MITIGATION YIELD PCS PHOSPHATE, OMPANY, INC. SCALE: AS SHOWN BY: DRAWN BY: TLJ DATE: 02 O1 12 FILE: — — — ztsl ALTENHATE SOUTH CP #1745.59.32 SUrtE 2000 JUPRER. F R1 36477 -3M IRCORPOR6T E0 TEt 561/747 -7.s5 E 561n47 -7576 FIGURE 12A PCS Phosphate Company, Inc. January 2012 r ROAD /S.R. 1002 J? �Q P i L U r a � M � Ut r � O �o O w< N >0 H- � Z) 1 U:2 w_ x< w� a m BO N N1 m C m N V V1 w T. m n v W z U ik n r Z o 4 U h O O H"NE w ® W o � !Z = e J =� _Q M c _ G a H = Z 3 N oo W d p n H x p V 0 o �WB 4 d n N <o N° U < _ 0 O i N C Z L .r Q U J 6 Compensatory Mitigation Plan F -12B PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 1) APPENDIX A AGENCY CORRESPONDENCE FOR P AND U LANDS INCLUDING SECTION 404 JURISDICTIONAL INFORMATION USFWS LETTERS NCSHPO LETTERS NCNHP LETTERS NCDWQ STORMWATER EXEMPTION LETTER Compensatory Mitigation Plan P and U Lands Restoration Appendix A January 2012 PRELIMINARY JURISDICTIONAL DETERMINATION FORM BACKGROUND INFORMATION A. REPORT COMPLETION DATE FOR PRELIMINARY JURISDICTIONAL DETERMINATION (JD) 10 August 2010 B NAME AND ADDRESS OF PERSON REQUESTING PRELIMINARY JD Mr Jeff Furness PotashCorp 1530 NC HWY 306 South Aurora, NC 27806 C DISTRICT OFFICE, FILE NAME, AND NUMBER CESAW RG W P Lands Mitigation Project Action ID SAW 2008 02889 D PROJECT LOCATIONS) AND BACKGROUND INFORMATION 2 883 acres located off the west side of Bay City Highway south of the community of Royal and dust south of the Bay City Farm Mitigation Site adjacent to South Creek, in Beaufort County NC P Lands is part of the proposed compensatory mitigation package for the PCS Phosphate mine continuation permit SAW 2001 10096 1 State NC County Beaufort City AURORA 2 Center coordinates of site (lat/long in degree decimal format) Lat 35 244833 / Long 76 768017 3 Name of nearest waterbody South Creek 4 Identify (estimate) amount of waters in the review area a Non wetland waters linear feet 97-845 / width (ft) and/or acres i) Cowarchn Class (es) 11) Stream Flow Vefei b Wetlands WS acres i) Cowardin Class (es) PF06Cd Palustrine Forested Seasonally Flooded Partially Drained/Ditched PF07B Palustrme Forested Evergreen Saturated PF01 /4A Palustrine Forested Broad Leaved Deciduous Needled Leaved Evergreen Temporarily Flooded PF0617B Palustrine Forested Deciduous Broad Leaved Deciduous Evergreen Saturated PF01A Palustrine Forested Broad Leaved Deciduous Temporarily Flooded PF06 /7B Palustrine Forested Deciduous Evergreen Saturated PF01B Palustrine Forested Broad Leaved Deciduous Saturated PF06 /7Bd Palustrine Forested Deciduous Evergreen Partially Dramed/Dttched PF04B Palustrme Forested Needle Leaved Evergreen Saturated PSS6 /713 Palustrine Scrub Shrub Deciduous Evergreen Saturated Compensatory Mitigation Plan Appendix A 1 P and U Lands Restoration January 2012 7 Name of onsite water bodies identified as Section 10 waters NIA ❑ Tidal ❑ Non Tidal E REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY) ❑ Office (Desk) Determination / Date _ _ _ ® Field Determination / Date(s) b Apr2O 8 �19Aui; 608 --l6Aug26O$ 7Aag2608 025 2068; OOct2008 eP �� 1 The Corps of Engineers believes that there may be junsdictional waters of the United States on the subject site and the permit applicant or other affected party who requested this preliminary JD is hereby advised of lus or her option to request and obtain an approved jurisdictional determination (JD) for that site Nevertheless the permit applicant or other person who requested this preliminary JD has declined to exercise the option to obtain an approved JD in this instance and at this time 2 In any circumstance where a permit applicant obtains an individual permit or a Nationwide General Permit (NWP) or other general permit verification requiring pre construction notification (PCN) or requests verification for a non reporting NWP or other general permit and the permit applicant has not requested an approved JD for the activity the permit applicant is hereby made aware of the following (1) the permit applicant has elected to seek a permit authorization based on a preliminary JD which does not make an official determination of Jurisdictional waters (2) that the applicant has the option to request an approved JD before accepting the terms and conditions of the permit authorization and that basing a permit authorization on an approved JD could possibly result in less compensatory mitigation being required or different special conditions (3) that the applicant has the right to request an individual permit rather than accepting the terms and conditions of the NWP or other general permit authorization (4) that the applicant can accept a permit authorization and thereby agree to comply with all the terms and conditions of that permit including whatever mitigation requirements the Corps has determined to be necessary (5) that undertaking any activity in reliance upon the subject permit authorization without requesting an approved JD constitutes the applicant s acceptance of the use of the preliminary JD but that either form of JD will be processed as soon as is practicable (6) accepting a permit authorization (e g signing a proffered individual permit) or undertaking any activity in reliance on any form of Corps permit authorization based on a preliminary JD constitutes agreement that all wetlands and other water bodies on the site affected in any way by that activity are jurisdictional waters of the United States and precludes any challenge to such. jurisdiction in any administrative or,judicial compliance or enforcement action or in any administrative appeal or in any Federal court, and (7) whether the applicant elects to use either an approved JD or a preliminary JD that JD will be processed as soon as is practicable Further an approved JD a proffered individual permit (and all terms and conditions contained therein) or individual permit denial can be administratively appealed pursuant to 33 C F R Part 331 and that in any administrative appeal ,jurisdictional issues can be raised (see 33 C F R 331 5(a)(2)) If during that administrative appeal it becomes necessary to make an official determination whether CWA Junsdiction exists over a site or to provide an official delineation of,junsdictional waters on the site the Corps will provide an approved JD to accomplish that result, as soon as is practicable Compensatory Mitigation Plan Appendix A 2 P and U Lands Restoration January 2012 This preliminary JD finds that there maybe waters of the United States on the subject project site and identifies all aquatic features on the site that could be affected by the proposed activity based on the following informationiis wetland determination was undertaken pursuant to tfip f 987 Corps of tngmeers Wetlanif DehneatiorL Manual and prto`r to the inmplement4t pn ofthe Interim Reg;bnal Supplement to the Corps of Eneinders Wetland Delineation Manual Atlantic and Gulf Coast41 -Plain Region All necessary parameters *ere -valuated and documented on tl e appropriate data forms Watefs of the Umted, States determinations were documented based, n the presence of an ordinary -high water mark pursuant Jo Re uta�ory Guz at ce V er 0505 +Ordtngry igll Water Mark 0 1 M) IdeMnfVotion F SUPPORTING DATA Data reviewed for preliminary JD (check all that apply checked items should 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 Ms Julia Berger /CZR Incorporated ® Data sheets prepared/subrnmtted by or on behalf of the applicant/consultant ® Office concurs with data sheets /delmeation report ❑ Office does not concur with data sheets/dehneation 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 ® USDA Natural Resources Conservation Service Soil Survey Citation ❑ National wetlands inventory map(s) Cite name ❑ State/Local wetland inventory map(s) ❑ FEMA/FIRM maps ❑ 100 year Floodplam Elevation is (National Geodectic Vertical Datum of 1929) ❑ Photographs ® Aerial (Name & Date) or ❑ Other (Name & Date) ® Previous detemunation(s) File no and date of response letter ❑ Other information (please specify) IMPORTANT NOTE The information recorded on this form has not necessarily been verified by the Corns and should not be relied upon for later mrisdictional determinations —U4 kk�= L9,41do oiklvd-w U—" 1�1 t, U, /10 Signature and date S and ate Regulatory Project Manager Person questing preliminary JD (REQUIRED) (REQUIRED unless obtaining the signature is impracticable) Compensatory Mitigation Plan Appendix A 3 P and U Lands Restoration January 2012 N °o m' M o Of J � � L6 W M . U M ye G W Q d u�i°i �gR Q yo v�4 N o &aaw, E��m o z z PIS g F m g ° $� ° fie V a a d g alU�W N = v IL ° FFis d < + i E V, �o�pmm m j Ww<V L _ � i 3 O € R Fes= d o N. s °� < o R y gn AWMI °z,fl? -8 N o i N / O .J fn 5„ C 1i �y oe p y k.W Y �to7 . r w, ^� R N �.. � � R 0 A, xN s bb i` t Compensatory Mitigation Plan Appendix A 4 P and U Lands Restoration January 2012 700010-614 z0011OZbd I, 110,5q Zoolloyf36 aA.1E (q it S CODS OF ENGINEERS -36 1Z 41 11054 Wilmington District `� v 89 Z S Al 11'77 r i6 -7 °117 z7ZYW Action ID 00110179 County 6 EAU FORT Notification of Jurisdictional Determination Property owner /Authorized Agent PCs N0 106aie Address P 0 A. x Lf $ / 15 -10 A/C 306 S0k4L, � WO&A . A16 27806 Telephone Number (SZ) 32Z- SZ71) Size and Location of Property (waterbody Highway name /number town etc ) 76e ff4 t �reG I S Ski ,Jry wog aeJ -V/4ci -V/4c qs Rve l #'5 33 7 39 31 40, W 4z 43, -,.,.a it+ w.+.. , a $13oo clue i /er,+ 1006.W o, :!(Je Sow 5 �e 0' NG 11,y 306 11,5 Of -/01. Indicate which of the following apply bei6ev, AEG 306 'b, V-ie -ohJ N65A 10oZ is -lea e4s+ ® There az wetlands n the abov described roperty which we stronE�yousurgsgteasff t sho d be delineate and sury ed The s eyed wet] lines must verified before the Corps vvi 1 make a �unsdicti al determi tion on your p perry ® Because of a size of our property and our pres nt workload ur identificatio and delete ion of your w tlands c of be acco plashed in timely m er You may sh to em oy a consultant o obtain more tamely elmeation the wetland Once your co ultant has agged a wetlan line on a property orps staff 11 review i and if it is curate we strongly recomm d that yo have the Ii surveyed r final appro al by the Co The Co s will not make a al junsd ctional dete mation on ur property thout an appr ed survey OThe wetlands on your lot have been delineated and the ]units of Corps jurisdiction have been explained to you Unless there is a change in the law or our published regulations this determmation may be relied upon for a period not to exceed tree- years from the date of this notification F+ve ® There are no ketlands pre nt on the above described prope wluch are su ect to the ernut requirements of Section 40 of the Clean W ter Act (33 US 1344) Unless ere is a c ge in the law or o published r gulataons this etermination m be relied upo for a pen d not to exceed thre years from date of this no fication Alt (9 The protect is located in one of the 20 Coastal Counties You should contact the nearest State Office of Coastal Management to determine their requirements C'ZSZ) c1W- 649 Placement of dredged or fill material in wetlands on this property without a Department of the Army permit is in most cases a violation of Section 301 of the Clean Water Act (33 USC 1311) A permit is not required for work on the property restricted entirely to existing high ground If you have any questions regarding the Corps of Engineers regulatory program please contact 0111 05, leca&-,e ac Z 7 — 61 Property owner /Authorized Agent Signature lti� n 1, r, e 3 U" s Project Manager Signature W Date 1214/0-5 Expiration Date Q 14109 SURVEY PLAT OR FIELD SKETCH OF DESCRIBED PROPERTY AND THE WETLAND DELINEATION FORM MUST BE ATTACKED TO THE YELLOW (FILE) COPY OF THIS FORM 4e +tocfS we cep -JeJ oL, 4 °71tb10Z e0100- ihfwed aer,41 p- A -D"eit, a,d deer J4 CESAW Form 566 0'- *,,,e Awv,,. 4, 'Jw��o {or Alc- QtAOl st fth %/o4e ® R,/Gel 0.S 3313 61.3 -71 1 OCT 92 `3'8 1 L+z % CBr. G 4-3 d!0 L„eft4 -% d 5 Ttie 4e-%Js+C PWCeI o F �v�i g � 1 s+o►� Compensatory4 at+a elarv`.4 dS Appendix A 5 P and U Lands Restoration January 2012 CP# 1745 G2 10 Action Id 200510457 U S ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT County Beaufort U S G S Quad Aurora NOTIFICATION OF JURISDICTIONAL DETERMINATION Property Owner /Agent Mr Jeffrey C Furness, Senior Environmental Scientist Address PCS Phosphate, incorporated Post Office Box 48 Aurora. North Carolina 27806 Telephone No (252) 322 8249 Property description Size (acres) 10,211 acres Nearest Town Aurora Nearest Waterway South Creek River Basin Pamlico USGS HUC 03020104 Pamlico Coordinates N 35 280050 W 76 826028 Location description A 10,211 acre tract known as the Limits of Delineation Boundary ncludina the PCS_E1S Boundary (8,686 acres) plus an additional 1,525 acres located on the South side of North Carolina Hiehwav 33 and east of North Carolina Hiehwav 306 immediately west of the Town of Aurora and adjacent to South Creek and other tributaries flowine to South Creek in Beaufort Countv, North Carolina Indicate Which of the Following Apply Based on preliminary information there may be wetlands on the above described property We strongly suggest you have this property inspected to deternune the extent of Department of the Army (DA) jurisdiction To be considered final a jurisdictional determination must be verified by the Corps This preliminary determination is not an appealable action under the Re6ulatory Probram Administrative Appeal Process ( Reference 33 CFR Part 33 1) X There are Navigable Waters of the United States within the above described project area subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act Unless there is a change in the law or our published regulations this determination may be relied upon for a period not to exceed five years from the date of this notification X There are wetlands on the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344) Unless there is a change in the law or our published regulations this determination may be relied upon for a period not to exceed five years from the date of this notification _ We strongly suggest you have the wetlands on your property delineated Due to the size of your property and/or our present workload the Corps may not be able to accomplish this wetland delineation in a timely manner For a more timely delineation you may wish to obtain a consultant To be considered final any delineation must be verified by the Corps The wetland on your property have been delineated and the delineation has been verified by the Corps We strongly suggest you have this delineation surveyed Upon completion this survey should be reviewed and verified by the Corps Once verified this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which provided there is no change in the law or our published regulations may be relied upon for a period not to exceed five years X The wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Cotes Regulatory Official identified below on 1/25/2005 Unless there is a change in the law or our published re6ulations this determination may be relied upon for a period not to exceed five years from the date of this notification There are no waters of the U S to include wetlands present on the above described property which are subject to the permit requirements of Section 404 of the Clean Water Act (33 USC 1344) Unless there is a change in the law or our published regulations this determination may be relied upon for a period not to exceed five years from the date of this notification X The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA) You should contact the Division of Coastal Management in Washington NC at (252) 946 6481 to determine their requirements Page I of 2 Compensatory Mitigation Plan Appendix A 6 P and U Lands Restoration January 2012 Action Id 200510457 Placement of dredged or fill material within waters of the US and /or wetlands without a Department of the Army permit may constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311) If you have any questions iegarding this determination and/or the Corps regulatory program please contact Mr Scott Jones at (252) 975 1616 extension 27 Basis For Determination This site exhibits wetland criteria as described in the 1987 Corps Wetland Delineation Manual and is part of a broad continuum of wetlands connected to South Creek, a tributary of the Pamlico River Waterbodies designated throughout the protect area exhibit individual Ordinary High Water Marks and /or High Tide Lines as indicated by changes in soil character and absence of terrestrial vegetation and are hydrologically connected to South Creek Remarks Protect Area defined on attached drawing labeled Wetland Delineation Parcels in the South of Rt 33 Area, Prepared by C7R Incorporated on 12/07/2004 (CP# 174562 10) Wetland boundary identified on plats entitled Wetland Delineations South of Hiehwav 33 for PCS Phosphate Aurora Division, prepared by Robert M Chiles P E oit 12/13/2004 and 01/13/2005 (RMC Job No 99264) Cross Reference Action IDs 200010314 200011034 200011035 200011053,200011054 ,200011177,200011543,200011544 200110260 200110436 200210979 200411248 200411250 200411371, 200411372. and 200411841 Corps Regulatory Official Date 01/25/2005 Expiration Date 01/25/2010 Corps Regulatory Official (Initial) FOR OFFICE USh ONLY • A plat or sketch of the property and the wetland data form must be attached to the file copy of this form • A copy of the Notification Of Adrrunistrative Appeal Options And Process And Request For Appeal form must be transmitted with the property owner /agent copy of this form • If the property contains isolated wetlands /waters please indicate in Remarks section and attach the Isolated Determination Information Sheet to the file copy of this fonn Page 2 of 2 Compensatory Mitigation Plan Appendix A 7 P and U Lands Restoration January 2012 JURISDICTIONAL DETERMINATION Revised 8/13/04 U S Army Corps of Engineers DISTRICT OFFICE CESAW RG w FILE NUMBER 200510457 PROJECT LOCATION INFORMATION State NC County Beaufort Center coordinates of site (latitudc/lonbitude) 35 780050 / 76 826028 Approximate si /e of area (parcel) reviewed including uplands 10 211 acres Name of nearest watm%,iy South Creek Name of \,% atershed Pamlico JURISDICTIONAL DETERMINATION Completed Desktop determination P Date Site \isit(s) ® Datc(s) Multiple Visits Jurisdictional Determination (JD) ❑ Preliminary JD Based on available information ❑ there appear to be (or) ❑ there appear to be no waters of the United States and /or na,. igable waters of the United States on the project site A preliminary JD is not appealable (Reference 33 CFR part 331) ® Appro%cd JD— An approved 1D is an appealable action (Reference 33 CPR part 331) Check all that apply ® At ie arc navigable waters of the United States (as defined by 33 CFR part 329 and associated guidance) within the rc%iewcd area Approximate si /c of jurisdictional area 17 87 acres ® Theic arc waters of the United States (as defined by 33 CFR part 318 and associated guidance) w ithm the rep iewed area Approximate si/c of jurisdictional area 1863 87 acres ® That are iwlattd non navigable infra %tale waters or wetlands within the re%sewed area N Decision supported by SN ANCC /Migratory Bird Rule Information Sheet for Determination of No Jurisdiction BASIS OF JURISDICTIONAL DETERMINATION ♦ ♦♦ aters defined under 33 CFR part 319 as navigable waters of the United States ® The presence of waters that are subject to the ebb and (tow of the tide and/or are presently used or ha,.c been used in the past or may be susceptible for use to transport interstate or foreign commerce B Waters defined under 33 CFR part 328 3(a) as eaters of the United States ® (1) The presence of waters which arc currently used or were used in the past or may be susceptible to use in mtcrstate or foreign commerce including all waters which arc subject to the ebb and flow of the tide ❑ ('�) The presence of interstate waters including interstate wetlands' Q (3) The presence of other waters such as intrastate lakes rivers streams (including intermittent streams) mudflats sandflats wetlands sloubhs prairie potholes wet meadows playa lakes or natural ponds the use c1gradation or destruction of which could affect interstate commerce including any such waters (check all that apply) ❑ (i) which arc or could be used by interstate or foreign travelers for recreational or other purposes ❑ (ii) from which fish or shellfish arc or could be taken and sold in interstate or foreign commerce ❑ (m) which are or could be used for industrial purposes by industries in interstate commerce ❑ (4) impoundments of waters otherwise defined as waters of the US (5) The presence of a tributary to a water identified in (1) — (4) above ❑ (6) The presence of territorial seas ® (7) The presence of wetlands adjacent to other waters of the US except for those wetlands adjacent to other wetlands Rationale for the Basis of Jurisdictional Determination (applies to any boxes checked above) If ncc yurisdictronal water at ii eland tv nit itself u navigable water of the united States describe connection(s) to the doii nstreant navigable waters If B(1) or B(i) is used a% the Bavis ofJuriidtedon document navigabdai and/or interstate commerce connection (i a discuev site conditions inchahng i hi the atcrbod) i na igablc andloi hoit the do struction of the waterbodt could affect interstate or foreign cone nu m) IfB(') 4 S or 6) is uvtd a die Basis of hii i dicito i docrintent the rationale used to make the determination If B(7) is used as the Basis of Ji iisdiction douaneiu the tationale used to niake adlacenct deteri unatu n This site exhibits wetland criteria as described in the 1987 Corps Wetland Delineation Manual and is part of a broad continuum of wetlands connected to South Creek a tributary of the Pamlico River Waterbodics designated throuf,hout the project area exhibit individual Ordinary High Water Marks as indicated by changes in soil character and absence of terrestrial vegetation and arc hydrologically connected to South Creek Compensatory Mitigation Plan Appendix A 8 P and U Lands Restoration January 2012 Lateral Extent of Jurisdiction (Reference 33 CFR parts 328 and 329) ® Ordinary High Water Mark indicated by JQ High Tide Line indicated by ® clear natural line impressed on the bank ❑ oil or scum line along shore objects ® the presence of litter and debris ❑ fine shell or debris deposits (foreshore) ® changes in the character of soil Aar physical mark ings/characteristics ® destruction of terrestrial vegetation n tidal gages ® shelvinl, ❑ other ❑ other ❑ Mean Hibh Water Mark indicated by ❑ survey to available datum ❑ physical markings ❑ vegetation lines /chanties in vegetation types ® Wetland boundaries as shown on the attached wetland delineation map and/or in a delineation report prepared by CZR Incorporated and Robert M Chiles P E Basis For Not Asserting Jurisdiction ❑ the rev iewed area consists entirely of uplands ❑ Unable to confirm the presence of waters in 33 CFR part 328(a)(i 2 or 4 7) ❑ Headquarters declined to approve jurisdiction on the basis of 33 CFR part 328 3(a)(3) �] The Corps has made a case specific determination that the following waters present on the site are not Waters of the United States ❑ Waste treatment systems including treatment ponds or lagoons pursuant to 33 CFR part 328 3 ❑ Artificially irrigated areas which would revert to upland if the irrigation ceased ❑ Artificial lakes and ponds created by excavating and /or diking dry land to collect and retain water and which are used exclusively for such purposes as stock watering irrigation settling basins or rice browing ❑ Artificial reflectinti or swimming pools or other small ornamental bodies of u ater created by excavating and/or diking dry land to retain water for primarily aesthetic reasons ❑ Water filled depressions created in dry land incidental to construction activity and pits excavated in dry land for the purpose of obtatmnb fill sand or gravel unless and until the construction or excavation operation is abandoned and the resulting body of water meets the definition of waters of the United States found at 33 CFR 318 3(a) ❑ Isolated intrastate wetland %%ith no nexus to interstate commerce ❑ Prior converted cropland as determined by the Natural Resources Conservation Service Explain rationale ❑ Non tidal drainabe or irntiation ditches excavated on dry land Explain rationale ❑ Other (explain) DATA REVIEWED FOR JURSIDICTIONAL DETERMINATION (mark all that apply) Maps plans plots or plat submitted by or on behalf of the applicant Data sheets prepared/submitted by or on behalf of the applicant ® This office concurs with the delineation report dated 01/24/2005 prepared by (company) C7R Incorporated and Robert M Chiles P E ❑ This office does not concur with the delineation report dated prepared by (company) Data sheets prepared by the Corps Corps na%igablc waters studies U S Geological Survey Hydrologic Atlas U S Geological Survey 7 5 Minute Topographic maps Aurora U S Geological Survey 7 5 Minute Historic quadrangles U S Geological Survey 15 Minute Historic quadrangles USDA Natural Resources Conservation Service Soil Survey Beaufort National wetlands inventory maps Aurora State /Local wetland inventory maps NC CREWS FEMA/FIRM maps (Map Name & Date) 100 year Floodplain Elevation is (NGVD) Aerial Photot raphs (Name & Date) CESA W Other photographs (Date) Advanced Identification Wetland maps SaL visit /determination conducted on Multiple visits Applicable /supporting case law Other information (please specify) Wetlands an, identih d and delis at-.d using the methods and criteria established in th Corps Wetland Delineation Manual (87 Manual) (i a occurrent of hydrophytie ct, tation hydri sods and %%etland hydrology) Compensatory Mitigation Plan Appendix A 9 P and U Lands Restoration January 2012 i h t rm d1a nt m an bord ring a nugu u r n ighbonn W Hands s parat d from th r alas of tl U S by man made d tie r h rn r iatur I m r bLrnu b a h dune and th like ar at o adlac nt NOTMCATION OF ADMINISTRATIVE APPEAL OPTIONS AND PROCESS AND REQtTEST FOR APPEAL Applicant PCS Phosphate Inco orated File Number 200510457 Date 01/25/2005 Attached is D See Section below INITIAL PROFFERED PERMIT (Standard Permit or Letter of A permission) PROFFERED PERMIT (Standard Pennit or Letter of ermission) B PERMIT DENIAL C APPROVED JURISDICTIONAL DETERMINATION D PRELIMINARY JURISDICTIONAL DETERMINATION E SECTION I The following identifies your rights and options regarding an administrative appeal of the above decision Additional information may be found at htta / /www usace army mil /inet/funetions /cw /cecwo /re>~ or Corps regulations at 33 CFR Part 331 A INITIAL PROFFERED PERMIT You may acceptor object to the permit ACCrPT If you 1LcLnLd a Standard Pernut you may si ,,n the permit document and return it to the district engineer foi final authorization If you received a Letter of Permission (LOP) you may accept the LOP and your work is authorized Your signature on the Standard Pei mit or acceptance of the LOP means that you accept the permit in its entirety and A aive all rights to appeal the permit includinb its terms and conditions and approved jurisdictional determinations associated �%ith the permit 0 OBIECT If you object to the permit (Standard or LOP) because of certain terms and conditions theiein you may request that the permit be modified accordingly You must complete Section 11 of this form and return the form to the district engineer Your objections must be received by the district engineer within 60 days of the date of this notice or you will forfeit your right to appeal the permit in the future Upon receipt of your letter the district engineer will evaluate your objections and may (a) modify the permit to address all of your concerns (b) modify the permit to address some of your objections or (c) not modify the permit having determined that the permit should be issued as previously written After evaluating your objections the district engineer will send you a proffered permit for your reconsideration as indicated in Section B below B PROFFERED PERMIT You may accept or appeal the permit ACCFP f If you received a Standard Permit you may si,n the pernut document and return it to the district enl,ineer for final authorization If you received a Lettei of Pei nussion (LOP) you may accept the LOP and your work is authorized Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety and wage all rights to appeal the permit including its terms and conditions and approved jurisdictional determinations associated with the permit • APPEAL If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form and sending the form to the division engineer This form must be received by the division engineer within 60 days of the date of this notice C PERMIT DENIAL You may appeal the denial of a pennit under the Corps of Engineers Administrative Appeal Process by completing Section I1 of this form and sending the form to the division engineer This form must be received by the division engineer within 60 days of the date of this notice Compensatory Mitigation Plan Appendix A 10 P and U Lands Restoration January 2012 D APPROVED JURISDICTIONAL DETERMINATION You may accept or appeal the approved JD or provide new information ACCEPT You do not need to notify the Corps to accept an approved JD Failure to notify the Corps within 60 days of the date of this notice means that you accept the approved JD in its entirety and waive all rights to appeal the approved JD APPEAL If you disagree with the approved JD you may appeal the approved JD under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer This form must be received by the division engineer within 60 days of the date of this notice E PRELIMINARY JURISDICTIONAL DETERMINATION You do not need to respond to the Corps regarding the preliminary JD The Preliminary JD is not appealable If you wish you may request an approved JD (which may be appealed) by contacting the Corps distract for further instruction Also you may provide new information for further consideration by the Corps to reevaluate the JD SECTION H REQUEST FOR APPEAL or OBJECTIONS TO AN INITIAL PROFFERED PERMIT REASONS FOR APPEAL OR OBJECTIONS (Describe your reasons for appealing the decision or your objections to an initial proffered permit in clear concise statements You may attach additional information to this form to clarify where your reasons or objections are addressed in the administrative record ) ADDITIONAL INFORMATION The appeal is limited to a review of the administrative record the Corps emorandum for the record of the appeal conference or meeting and any supplemental information that the -view officer has determined is needed to clarify the administrative record Neither the appellant nor the Corps may add new information or analyses to the record However you may provide additional information to clarify the location of information that is already in the administrative record POINT OF CONTACT FOR UESTIONS OR INFORMATION If you have questions regarding this decision If you only have questions regarding the appeal process you and /or the appeal process you may contact may also contact Mr Scott Jones, Regulatory Specialist Mr Michael Bell, Administrative Appeal Review Officer CESAD ET CO R CESAW RG W Post Office Box 1000 Washington, North Carolina 27889 U S Army Corps of Engineers, South Atlantic Division 60 Forsyth Street, Room 9M15 Atlanta Georgia 30303 8801 RIGHT OF ENTRY Your signature below grants the right of entry to Corps of Engineers personnel and any government consultants to conduct investigations of the project site during the course of the appeal process You will be provided a 15 day notice of any site investigation and will have the opportunity to participate in all site investigations Date Telephone number Signature of appellant or agent DIVISION ENGINEER Commander U S Army Engineer Division, South Atlantic 60 Forsyth Street, Room 9M15 Atlanta Georgia 30303 3490 Compensatory Mitigation Plan Appendix A 11 P and U Lands Restoration January 2012 INFORMATION SHEET DETER'MINAT'IONS OF NO IURISDICfION FOR ISOLACED YON NAS (GABLE INTRA STAIR WATLRS RESLLTING )ROM V S SUPRLME COLRT DECISION In SOLID WASTE AGh'VCY OF NOR MERN COOK COUNTY V U S ARMY CORPS OF ENGINLERS DISTRICT OPPICE kILE NLMBER CESAW RG-W 200510451 ALGULATORY PROJLCT MANAGER Scot inns Data 01 /25/2005 PROJEC r REVIEW /DETERMINAfION COMPLETLD In the office _ (Y/N) Date Al the project situ i (YPN) Date 0410 bt1A PROJLCf LOCATION INFORMATION Stato Nr rlh Carolina County Beau o Ceotq,r coordinates of site by lailtude & longitudinal coordinates 3S U50 / 76,9.16029 Approximate srse of sata/properry (including uplands & In acres) 10.211 acres Name of waterway or watershed Pam lco SITE CONDITIONS Typo of squat a resource O 1 c 13 ac 14 ac 5-10 ac 10 2S ac 25.50 ae > SO .e Linea Lnknown test Isko to Cim tkc Determination Is or *said iK us d h bitat for birds p t -clad by War t ry Bird Trestles RI c Is or we id h used as habitat by ote r nuar ton birds that C crust state lines? Streaot Is or w Id be used as habitat for endnn LW a 'lea' Dr-Y Wash X Is used to irrigate crop sold is interstate commerce X MudOat Check appropriate boxes that txw d sedbe potential to uppilcublllty of the M arstury tiled Rule to apply to odeit4 not jurudretsonai isolated non -navl able Tatra -slate Aquatic rGMurce rW Sandal" Nodands X blou h !,at to liathole Wet mead w Plays lam Nor 1 pool Not ai im d Odtur water (Identify typ4.) i I Check appropriate boxes tkut bell describe Opp of wlated, non navigable Intro state water pretLnt and best LtUmate for situ of non ur d WOW aqua eshurte a en. Migratory RI d Rule Kseturs if Known If Ltllutowa I ll e t Profcsslunsl Jud want Ycs h Predicted Not i peeled to Not 4ht 1 Nuke to Cim tkc Determination Is or *said iK us d h bitat for birds p t -clad by War t ry Bird Trestles Is or we id h used as habitat by ote r nuar ton birds that C crust state lines? Is or w Id be used as habitat for endnn LW a 'lea' X Is used to irrigate crop sold is interstate commerce X Check appropriate boxes that txw d sedbe potential to uppilcublllty of the M arstury tiled Rule to apply to odeit4 not jurudretsonai isolated non -navl able Tatra -slate Aquatic rGMurce rW Y 1 PE OF DETERM f NATION Prdlrednary _ Or Approved X OPITIONAL AUDI I ION tL INFORMATION SUPPORTING NJD (t g dlecussion may Include litformation rivlewed to assess potential navlyation or interstate commerce connwinos I to 3 paraersphs) E�vht wedand sireaR (labeled 4OW7. 40W6. SOWS, S2W4. WWII, SON 2. SOW& and SOW91 tocatrd on tke oronerty were roonnd Z /Compensato&- Mitigahon Plan �" d °f and UCands es era wn -- -- co Ic occZ 6f �J AppLeindiki4 12 f �t t Jeff I have spoken with Ken and Tom and pursuant to RGL 05 02 we are going to honor the NCPC / Bonnerton plat until the permit expires — I think you said 2017 Regarding S33 — let it ride Once the next permit is issued that JD will ride thru permit expiration Regarding the stream plats — per RGL 08 02 we should go preliminary and move forward From Lekson David M SAW Sent Friday November 21 2008 4 38 PM To Jolly Samuel K SAW McLendon Scott C SAW Walker William T SAW Lamson Brooke SAW Subject PCS Phosphate JD Renewal All I have been in conversation with Jeff Furness regarding the 24 411 acre PCS JD as follows 1 Some of the PCS JD is set to expire and they would like to explore lumping all of the JD s together into one expiration date The total area in question equals 24 411 acres (14 200 acres on NCPC and Bonnerton 10 211 acres on S33) 2 We are all concerned about the Rapanos issue /forms /etc and I am considering going preliminary pursuant to RGL 08 02 3 That said the expiration date of the 14 200 acre segment is 09Dec08 However RGL 05 02 states that JDs associated with issued permits remain valid until the permit expires Since NCPC and Bonnerton were JDed for the Alt E permit which expires in 2017 1 am contemplating allowing that to remain in effect We would then cover the remaining 10 211 acres on S33 — including all the stream calls as a preliminary JD pursuant to RGL 08 02 and move forward with the permit action Jeff said he would run that up his chain of command Thoughts /comments? Thanks David http / /www usace army mil /cw /cecwo /req /rgls /rg105 02 pdf http / /www usace army mil /cw /cecwo /req /rqls /rg108 02 pdf ment the U Lands are contained within Parcel 42 (both sides of Gum Road) and Parcel 41 (the existing wetlands of the U Lands northeast of Gum Road) These parcels are referred to in handwritten notes on page 1 of CESAW Form 566 dated 12/4/03 Compensatory Mitigation Plan Appendix A 13 P and U Lands Restoration January 2012 United States Department of the Interior FISH AND WILDLIFE SERVICE Raleigh Field Office Post Office Box 33726 Raleigh North Carolina 27636 3726 March 11 2009 Catoltne Reddy CZR Incorpot ated 2151 Alternate A 1 A South Suite 2000 Jupiter Florida 33477 3902 P;, Orwet-ted Spec e, Pe%ie% of La,d, N4 , gatior Sife Dear Ms Reddy MAR 16 2009 This letter is to inform you that a list of all federally protected endangered and threatened species with known occurrences in North Carolina is now available on the U S Fish and Wildlife Service s (Service) web page at http //www fws gov /raleigh Therefore if you have piojects that occur within the Raleigh Field Office s area of responsibility (see attached county list) you no longer need to contact the Raleigh Field Office for a list of federally protected species Our web page contains a complete and frequently updated list of all endangered and threatened species protected by the provisions of the Endangered Species Act of 1973 as amended (16 U S C 1531 et seq )(Act) and a list of fedeial species of concern' that ale known to occur in each county in North Carolina Section 7 of the Act iequites that all federal agencies (or their designated non federal representative) in consultation with the Service insure that any action federally authorized funded or carried out by such agencies is not likely to Jeopardize the continued existence of any federally listed endangered or threatened species A biological assessment or evaluation may be prepared to fulfill that requirement and in detenriming whether additional consultation with the Service is necessary In addition to the federally protected species list information on the bpecies life histories and habitats and infoimation on completing a biological assessment or evaluation and can be found on our web page at http / /www fws gov /raleigh Please check the web site often for updated information or changes ' The term federal species of concern refers to those species which the Service believes might be in need of concentrated conservation actions Federal species of concern receive no legal protection and their designation does not necessarily imply that the species will eventually be proposed for listing as a federally endangered or threatened species However we recommend that all practicable measures be taken to avoid or minimize adverse impacts to federal species of concern Compensatory Mitigation Plan Appendix A 14 P and U Lands Restoration January 2012 If yout ptoject contains suitable habitat fo► any of the fede ►ally listed species known to be present within the county where your project occurs the proposed action has the potential to adversely affect those species As such we recommend that surveys be conducted to deter mine the species presence of absence within the project at ea The use of North Carolina Natural Heritage program data should not be substituted for actual field surveys If you determine that the proposed action may affect (► e , likely to adversely affect of not likely to adversely affect) a federally protected species you should notify this office with your determination the results of your sui veys survey methodologies and an analysis of the effects of the action on listed species including consideration of diect rndnect and cumulative effects befo►e conducting any activities that might affect the species It you determine that the proposed action will have no effect (i a no beneficial or adverse diect or rndnect effect) on federally listed species then you are not required to contact our office for concuuence (unless an Environmental Impact Statement is prepared) Ho A ever you should maintain a complete record of the assessment including steps leading to your deter mination of effect the qualified per sonnel conducting the assessment habitat conditions site photographs and any other related articles With regard to the above referenced project we offer the following remarks Out comments are submitted pursuant to and in accordance with provisions of the Endangered Species Act Based on the information provided and other information available it appears that the proposed action is not likely to adversely affect any federally listed endangered of threatened species their formally designated critical habitat or species currently proposed for listing under the Act at these sites We believe that the requiements of section 7(a)(2) of the Act have been satisfied for your pioject Please iemembet that obligations under section 7 consultation must be ►econsideted 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 detei mined that may be affected by the identified action However the Service is concerned about the potential impacts the proposed action might have on aquatic species Aquatic resources are highly susceptible to sedimentation Therefore we recommend that all practicable nneasuies be taken to avoid adverse impacts to aquatic species including implementing directional boring methods and stringent sediment and erosion control measui es An erosion and sedimentation control plan should be submitted to and approved by the North Carolina Division of Land Resources Land Quality Section prior to construction Erosion and sedimentation controls should be installed and maintained between the construction site and any nearby down gradient surface waters In addition we recommend maintaining natural vegetated buffets on all streams and c►eeks adjacent to the pioject site The North Ca►ohna Wildlife Resources Commission has developed a Guidance Memorandum (a copy can be found on out website at (http / /www fws gov/tale►gh) to address and mitigate secondary and cumulative impacts to aquatic and ten estrial. wildlife resources and water quality We i ecommend that you consider this document in the development of your projects and in completing an initiation package for consultation (if necessary) Compensatory Mitigation Plan Appendix A 15 P and U Lands Restoration January 2012 We hope you find our web page useful and informative and that following the process descttbed above will seduce the time cequcred and eliminate the need, foc general correspondence for species lists If you have any questions oc comments please contact Mack Boweis of this office at (919) 856 4520 ext 19 Sincerely�j Pete Benjamin ield Supervtsoc 3 Compensatory Mitigation Plan Appendix A 16 P and U Lands Restoration January 2012 List of Counties to the Service's Raleigh Field Office Area of Responsibility Alamance Beaufoi t Bertie Bladen Brunswick Camden Carteret Caswell Chatham Chowan Columbus Ciaven Cumberland Cut i ituck Dai e Duplin Dui ham Edgecombe Fianklin Gates Granville Greene Guilfoid Halifax Hai nett Hertfoid Hoke Hyde Johnston Jones Lee Lenoir Martin Montgomery Moot e Nash New Hanovei Not thampton Onslow Orange Pamlico Pasquotank Pendei Pet quimans Petson Pitt Randolph Richmond Robeson Rockingham Sampson Scotland Tyi i ell Vance Wake Waiien Washington Wayne Wilson Compensatory Mitigation Plan Appendix A 17 P and U Lands Restoration January 2012 United States Department of the Interior FISH AND WILDLIFE SERVICE Raleigh Field Office Post Office Box 33726 Raleigh North Carolina 27636 3726 Match 11 2009 Caroline Reddy CZR Incorporated 2151 Alternate A I A South Suite 2000 Ripitet Florida 33477 3902 Re Protected Snecres Review of U Lands Mitigation Site Dear Ms Reddy 4 •' t } 7 MAR 16 200 1: . ! . This lettei is to inform you that a list of all federally protected endangered and threatened species with known occurrences in North Carolina is now available on the U S Fish and Wildlife Service s (Service) web page at http / /www fws gov /ralergh Therefore if you have piojects that occur within the Raleigh Field Office s area of responsibility (see attached county list) you no longer need to contact the Raleigh Field Office for a list of federally protected species Our web page contains a complete and frequently updated list of all endangered and threatened species protected by the provisions of the Endangered Species Act of 1973 as amended (16 U S C 1531 et seq )(Act), and a list of federal species of concern' that are known to occur in each county in North Carolina Section 7 of the Act requires that all federal agencies (or their designated non federal representative) in consultation with the Service insure that any action federally authorized funded, or carried out by such agencies is not likely to jeopardize the continued existence of any federally listed endangered or threatened species A biological assessment or evaluation may be ptepafca to'tudid that requneiriciit,ina in ueteinitriatg wht:ihet additional ..ariaultdtrun with sue Service is necessary In addition to the federally protected species list information on the species life histories and habitats and information on completing a biological assessment or evaluation and can be found on our web page at http / /www fws gov /ralergh Please check the web site often for updated information or changes I The term federal species of concern refers to those species which the Service believes might be in need of concentrated conservation actions Federal species of concern receive no legal protection and their designation does not necessarily imply that the species will eventually be proposed for listing as a federally endangered or threatened species However we recommend that all practicable measures be taken to avoid or minimize adverse impacts to federal species of concern Compensatory Mitigation Plan Appendix A 18 P and U Lands Restoration January 2012 If your project contains suitable habitat for any of the federally listed species known to be present within the county where your project occurs the proposed action has the potential to adversely affect those species As such we recommend that surveys be conducted to determine the species presence or absence within the pioject area The use of North Carolina Natural Heritage program data should not be substituted for actual field surveys If you determine that the pioposed action may affect (i e likely to adversely affect of not likely to adversely affect) a federally protected species you should notify this office with your determination the results of your surveys survey methodologies and an analysis of the effects of the action on listed species including consideration of duect indirect and cumulative effects befoie conducting any activities that might affect the species If you determme that the proposed action will have no effect (i a no beneficial of adveise direct of mduect effect) on federally listed species then you ate not required to contact out office fot concurience (unless an Envitonmental Impact Statement is prepared) Howevet you should maintain a complete iecoid of the assessment including steps leading to youi determination of effect the qualified personnel conducting the assessment, habitat conditions site photogiaphs and any other ielated articles With tegaid to the above referenced project we offei the following iemaiks Our comments are submitted pursuant to and in accordance with provisions of the Endangered Species Act Based on the information piovided and othei mfoiimation available it appeais that the pioposed action is not likely to adversely affect any fedeially listed endangered or threatened species then formally designated critical habitat or species curiently proposed for listing under the Act at these sites We believe that the requnements of section 7(a)(2) of the Act have been satisfied for your picject Please remember that obligations under section 7 consultation 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 deteimi ned that may be affected by the identified action However the Service is concerned about the potential impacts the proposed action night have on aquatic species Aquatic resources ate highly susceptible to sedimentation Therefore we recommend that all pricticable measures be taken to avoid adveise impacts to aquatic species including implementing directional boring methods and stringent sediment and erosion control measures An erosion and sedimentation control plan should be subs pitted to aid arproved by the North Carolina Division of Land Resources Land Quality Section prior to constriction Erosion and sedimentation controls should be installed and maintained between the constiuction site and any nearby down gradient surface waters In addition we recommend maintaining natural vegetated buffers on all streams and creeks adjacent to the project site The North Catolma Wildlife Resouices Commission has developed a Guidance Memorandum (a copy can be found on out website at (http Hwww fws gov /raleigh) to address and mitigate secondary and cumulative impacts to aquatic and terrestrial wildlife resources and water quality We recommend that you considet this document in the development of yout ptojects and in completing an initiation package foi consultation (if necessary) Compensatory Mitigation Plan Appendix A 19 P and U Lands Restoration January 2012 We hope you find our web page useful and informative and that following the process described above will reduce the time required and eliminate the need for general correspondence for species lists If you have any questions or comments please contact Mark Bowers of this office at (919) 856 4520 ext 19 Sincerely Pete Benjamin Field Supervisor Compensatory Mitigation Plan Appendix A 20 P and U Lands Restoration January 2012 List of Counties in the Sei vice's Raleigh Field Office Area of Responsibility Alamance Beaufort Bei tie Bladen Brunswick Camden Carteiet Caswell Chatham Chowan Columbus Ciaven Cumberland Currituck Dare Duplin Durham Edgecombe Franklin Gates Granville Gieene Guilford Halifax Hai nett Hertford Hoke Hyde Johnston Jones Lee Letion Martin Montgomery Mooie Nash New Hanover Northampton Onslow Orange Pamlico P,isquotank Pendet 4 Perquimans Person Pitt Randolph Richmond Robeson Rockingham Sampson Scotland Tyt t ell Vance Wake Waiten Washington Wayne Wilson Compensatory Mitigation Plan Appendix A 21 P and U Lands Restoration January 2012 North Carohna Department of Cultural Resources State Historic Preservation Office 1 eter It Sandbcck %dmtni trator Beverly Ca-, es Perdue Goi. emor Linda A Carlisle Secretary Jeffrey) Cro v Deputy Secretary March 20 2009 Caroline Reddy CZR Imcorporated 2151 Alternate AIA South Suite 2000 Jupiter FL 33477 3902 Re P Lands Mitigation Site Beaufort County ER 09 0457 Dear Ms Reddy Thank you for your letter of March 4, 2009 concerning the above project Offc of \reh es and 11 ton 1) n if I I to cal ltc,( t rct. 1)1 d tiro k 1) recto 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 Pieseiv�ttion Act and the Advisory Council on Historic Preservation s Regulations for Compliance with Section 106 codified at 36 CrR Part 800 Thank you for your cooperation and consideration If you have questions concerning the abo-, a comment please contact Renee Gledhill Earley environmental review coordinator at 919 807 6579 In all future communication concerning this project please cite the above teferenced tracking number Sincerely eter Sandbeck Locaaom 109 Ltast Jones Street Raleigh Nl 27601 Compensatory Mitigation Plan P and U Lands Restoration MAR � 0 2009 Mailing Address 4617 Mail ticn ice Lent r ItalMh NC 27699 -4(17 Tcicpl one /Fa ()U)8076570/807(599 Appendix A 22 January 2012 North Carohna Department of Cultural Resources State Historic Preservation Office 1 eter B Sandbeck ldmmi trator Beverly Eves Perdue, Go%emor Linda A Carlisle Secretary Jeffrey J Crow Deputy Secretary March 20 2009 Caroline Reddy CZR Imcorporated 2151 Alternate A1A South Suite 2000 Jupiter, FL 33477 3902 Re U Lands Mitigation Site Beaufort County ER 09 0456 Dear Ms Reddy Thank you for your letter of March 4, 2009 concerning the abo-, a project Office of Vch e+ lnd I It. tort D on of 1 I to cal Res irce D1\ d Br 6 1) rect 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 PieseLN 'ttion Act tnd the Advisory Council on Historic Preservation s Regulations for Compliance with Section 106 codified 1t 36 CFR Part 800 Thank you for your cooperation and consideration If you have questions concerning the aboti a comment please contact Renee Gledhill Earley environmental review cooidinator at 919 807 6579 In all future communication concerning this project please cite the above tefeienced tracking nurnbei Sincerely reter Sandbeck Locattom 109 East Jones Street Raleigh NC 27601 Compensatory Mitigation Plan P and U Lands Restoration zz� IMF MAR i 0 2009 Mailing Address 4(17 Mad Sen ice Center R-ilcigh N( 27699 4(17 Telephone /Fa ()1))8()76571)/807(5)9 Appendix A 23 January 2012 EXHIBIT C North Carolina Department of Environment and Natural Resources Division of Natural Resources Planning and Conservation Beverly Eaves Perdue Linda Pearsall Governor Director March 13 2009 Caroline Reddy CZR, Inc 4709 College Acres Drive Suite 2 Wilmington NC 28403 1725 Subject Protected species review of P Lands Mitigation Site Dear Ms Reddy Dee Freeman Secretary OD rAC�C��JCVur1l i Irf„R 7 u 2009 (� r CZR hCC po _ _ L✓,i— q� I have reviewed the Natural Hentage Program records for this site south of Aurora as indicated on the map you sent We have no records of rare species or significant natural features within these tracts However two Significant Natural Hentage Areas are nearby Bay City Low Pocosm lies immediately to the south The adjoining portion is a secondary area, included to buffer the primary areas farther south and does not contain significant resources itself The primary area of this regionally significant site contains exemplary natural communities including Pond Pine Woodland and Low Pocosm The Western Gum Swamp significant area lies a short distance to the west of the mitigation site This area is of cowity significance and contains good examples of a Nonrivenne Swamp Forest community Restoration activities on the mitigation site should not harm either of these significant areas and may be beneficial if more natural hydrology is restored Conversely the proximity of these natural areas may benefit the restoration by providing a source of propagules for native species Sincerely Michael P Schafale Natural Hentage Program 1601 Mad Service Center Raleigh North Carolina 276991601 Phone 919 715-41951 FAX 919 715 3060 Internet www oneNCNaturally org An Equal opponundy 1 ANirmahve Action Employer NorthQu ohna A"u,"ally Normal Pesources Moaning and Conserrauon Compensatory Mitigation Plan Appendix A 24 P and U Lands Restoration January 2012 North Carolina Department of Environment and Natural Resources Division of Natural Resources Planning and Conservation Beverly Eaves Perdue Linda Pearsall Governor Director March 13 2009 Caroline Reddy CZR Inc 4709 College Acres Drive Suite 2 Wilmington NC 28403 1725 Subject Protected species review of U Lands Mitigation Site Dear Ms Reddy Dee Freeman Secretary 9 J CZ9 J%ur�r)ra —d if 1-2 n rti� I have reviewed the Natural Heritage Program records for this site south of Aurora as indicated on the map you sent Part of the mitigation site overlaps a Significant Natural Heritage Area The Western Gum Swamp area is of county significance It contains a Nonnvenne Swamp Forest community that is believed to be a good example despite the presence of ditches Restoration of hydrology in this area to more natural condition would be expected to improve the condition of the community At the same time the presence of natural communities in fair condition should improve prospects for more full restoration Other forested areas on the mitigation site may also be natural communities in good condition but have not been explored We have no record of any rare species specific to the mitigation site or the Western Gum Swamp area Sincerely 411ZtJZ2► u — 1' Michael P Sehafale Natural Hentage Program 1601 Mad Service Center Raleigh North Carolina 27699 1641 Phone 919 715 4195 1 FAX 919 715 3060 Internet www oneNCNaturally org An Equal Opportunity 1 Affirmative Action Employer NorthCarohna NIMUI'qa�ly Natural Fesaau s Fla hung and Comerratian Compensatory Mitigation Plan Appendix A 25 P and U Lands Restoration January 2012 �s mom own YrrA mom mss® NCENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H Sullins Dee Freeman Govemor Director Secretary October 26 2010 Mr Jeffrey Furness Sr Env Scientist Potash Corp 1530 NC Hwy 306 South Aurora, Nc 27806 Subject. EXEMPTION from Stormwater Management Permit Regulations SEC Plan Approval / CAMA Major Dredge & Fill / Bulkhead / Pier P & U Lands – Appliation 1 ( Wetland Restoration Project) Stormwater Project No SW7100910 Beaufort County Dear Mr Furness The Washington Regional Office received a copy of your SEC Plan FRO form for your proposed clearing and grading for the wetland restoration project named P & U Lands – Application 1 on September 16 2010 with a request for an exemption from state stormwater permitting received on October 26 2010 Staff review of the plans and specifications has determined that the project, as proposed, consists of activities that will not pose surface water quality threats from stormwater runoff since no new impervious area is proposed The Director has determined that projects that are reviewed and approved by the Division as not posing water quality threats from stormwater runoff should not be subject to the stormwater management permitting requirements of 15A NCAC 2H 1000 and SL 2008 211 For this reason, we are informing you byway of this letter that your project will not require a State Stormwater management permit at this time The stormwater rules require the Division to permit the common plan of development, therefore any future development on the property regardless of whether a SEC plan or CAMA Major permit is also required, will require a Stormwater Management Permit application and permit issuance from the Division of Water Quality prior to any construction Any 1 construction on the subject site prior to receipt of the required permit, will constitute a violation of 15A NCAC 2H 1000 and SL 2008 -211 and may result in appropriate enforcement actions by this Office Please keep in mind that this determination does not affect your legal requirements to obtain other permits which may be required by the Division of Water Quality the Division of Land Resources Coastal Area Management Act or any other Federal State or Local Government Please reference the Stormwater Project Number above on all correspondence If you have any questions or need additional information concerning this matter please contact Scott Vinson at (252) 946 -6481 S cerely AL odge —T Regional Supervisor Washington Regional Office AH/ sv K \. SAV\STORMWATER\EXEMPT\SW7100910 cc Washington Regional Office North Carolina Division of Water Quality Internet www rimaterquanty org 943 Wastungton Square Man Phone 252 946 6481 1 FAX. 252 946-9215 N-6 f ttu, Carolma Washurgton NC 27669 FAX 252 - 946 9215 a'n�u�a //� An Equal apMholy 1 Afikmative Adon Employe (� �/ds 1 Compensatory Mitigation Plan Appendix A 26 P and U Lands Restoration January 2012 APPENDIX B HYDRAULIC ANALYSIS AND MASTER PLAN FOR P AND U LANDS )mpensatory Mitigation Plan Appendix B and U Lands Restoration January 2012 Hydrologic and Hydraulic Analyses Master Plan recommendations April 17, 2011 Updated January 31, 2012 Prepared by Jonathan T Ricketts, Inc Consulting Engineers and Construction Managers 3450 Northlake Boulevard Suite 102 Palm Beach Gardens Florida 33403 Main (561) 630 6700 Fax (561) 625 2770 Toll Free (877) 630 6777 FL Cert of Auth 6173 NC Cert of Auth C 2761 �onadw T Rickefts, Inc ' C% S n� Filpwn Lon to tlara,,rr r ; 1(131 011 111 1 RILL It NCPE l ; R1Ii \YD417_t7if t111»II h 01/31/1 P and U Lands Hydrologic and Hydraulic Analyses Master Plan Recommendations April 17, 2011 Updated January 31, 2012 Prepared by Jonathan T Ricketts, Inc Consulting Engineers and Construction Managers 3450 Northlake Boulevard Suite 102 Palm Beach Gardens Florida 33403 Main (561) 630 6700 Fax (561) 625 2770 Toll Free (877) 630 6777 FL Cert of Auth 6173 NC Cert of Auth C 2761 VTR Tonadn T Fackett's, Inc cam- Jonathan T Ricketts NC P E #26154 RELEASED 4/17/2011 UPDATED 01/31/12 Compensatory Mitigation Plan Appendix B 1 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydrauhc Analyses TABLE OF CONTENTS 1 Purpose 1 2 Project Location Description and Analyses 1 3 South Creek Drainage District 2 4 Existing Drainage Characteristics 2 41 East Drainage Basin 3 4 2 West Drainage Basin 4 4 3 Survey 4 5 Hydrology 5 51 Soils 5 5 2 Well & Rainfall Monitoring 5 6 Hydrologic and Hydraulic Analysis 5 6 1 East Basin Analysis 6 6 2 West Basin Analysis 8 6 3 FEMA Study 9 6 4 Stage Storage Volume Comparison 9 6 5 Perimeter Berm Analysis 10 6 6 Conclusion/Recommendation 10 7 Master Plan Recommendations 11 7 1 Phase 1 Recommendations 11 7 2 Phase 2 Recommendations 12 7 3 Phase 3 Recommendations 14 Jonathan T Ricketts Inc Page i 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 2 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydrauhc Analyses LIST OF EXHIBITS Exhibit 1 Location Map Exhibit 2 USGS Quad Map w/ Contributory Areas Exhibit 3 South Creek Drainage District Exhibit 4 Existing Drainage Basin and Discharge Routes Exhibit 5 Existing Drainage Facilities Map Exhibit 6 LIDAR Map — West and East Basin Surface Exhibit 7 Soils Map Exhibit 8 Monitoring Well Locations Map Exhibit 9 Well & Cumulative Rain Data Charts Exhibit 10 East & West Basin Channel Stationing Exhibit 11 HEC RAS Peak Flood Stages Report Exhibit 12 LIDAR Map — East Basin Exhibit 13 Existing Ditches to be Removed — East Basin Exhibit 14 Conceptual Plan for East Basin Exhibit 15 Exhibit Not Included — Option Eliminated Exhibit 16 LIDAR Map — West Basin Exhibit 17 Existing Ditches to be Removed — West Basin Exhibit 18 Conceptual Plan for West Basin Exhibit 19 Exhibit Not Included — Option Eliminated Jonathan T Ricketts Inc Page ii 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 3 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses 1 Purpose This report documents the analyses used to determine the existing hydrologic and hydraulic conditions at the P & U Lands The existing hydraulic conditions are used in developing a master plan for restoring the site to its former natural state This involves computing the expected flows and flood stages for the existing conditions and the future conditions once the existing drainage facilities are filled and/or removed and the fields reshaped to approximate historic or pre developed grades Additionally the analyses were performed to ensure that offsite areas would have no significant increases to flood stages as a result of the proposed work Restoration work will need to maintain or accommodate the existing flows from offsite drainage ditches that flow through the property This will ensure that adverse flood impacts will not occur to adjacent properties 2 Project Location, Description, and Analyses The P and U Lands encompass 3 700 + / acres of existing timberlands in Beaufort County North Carolina located south of the Pamlico River southeast of Aurora and immediately north of the Pamlico — Beaufort County Line at latitude 35 23333 (35° 14 00 N) and longitude 76 77639 (76° 46 35 W) (See Exhibit 1 — Location Map & Exhibit 2 — USGS Quad Map w/ Contributory Areas ) The sites are adjacent to State Road 1002 (SR 1002) (a k a Bay City Road) approximately 4 5 miles southeast of Aurora and are located in Richland Township The P Lands containing approximately 2 900 acres is bisected by the north south SR 1002 The U Lands containing approximately 800 acres is located immediately west of the P Lands The project site is located within the Pamlico Hydrologic Unit Code 03020104 There are multiple access points to the site from SR 1002 via private roads built as part of the existing timber production The restoration work includes removing the stumps in the former timber fields that have recently been clear cut filling or plugging the existing facilities and planting the site with a mix of wetland trees and shrubs This will increase the hydroperiod of the P and U Lands most of which have evidence of being former wetlands thus restoring the natural historic conditions This work is being conducted by PotashCorp to mitigate wetland impacts associated with their phosphate mining in Aurora North Carolina A pre versus post improvements flood analyses including stage storage and water surface profiles within the primary drainage ditches was performed to ensure the restoration work will not adversely impact adjacent properties These analyses quantify the existing conditions of the site and are used as a reference in developing the improvement plans The stage storage analysis conducted confirms that the volumetric storage loss resulting from the filling of the agricultural field ditches will be insignificant and will not impact the flood stages throughout the basin Analysis of the primary drainage ditches for the 10 year and 100 year flood events were conducted to determine the water surface profiles during a smaller regularly occurring rainfall event and a less frequent larger rainfall event The flood events analyzed are consistent with those used in the Federal Emergency Managements Agency s (FEMA) flood insurance study completed for Beaufort County North Carolina in 2007 Jonathan T Ricketts Inc Page 1 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 4 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses 3 South Creek Drainage District A portion of the P and U Lands resides within the South Creek Drainage District (See Exhibit 3 — South Creek Drainage District ) This entity was created in the late 60 s and was the result of a program by the Army Corps of Engineers to enlarge a portion of South Creek This federal program provided for payment of eighty percent of the initial improvements (dredging) of South Creek provided that a local sponsor would pay for the remaining twenty percent Additionally all improvements outside of the limits of the South Creek Corridor would be paid for by the local sponsor These improvements would include new ditches or enlargement of existing ditches to improve the drainage of the lands within the district To create the local sponsor a majority of the landowners who would benefit from the improvements had to sign a petition agreeing to become members of the district having their land assessed for the additional improvements and the costs of future maintenance of the system In order to provide an equitable assessment of the cost and benefits of the improvements five categories of lands were created with five different assessment rates Those whose lands benefitted the most from the drainage improvements provided by the district would pay more while those whose land received less benefit would pay less An annual report is made by the South Creek Drainage District to the Clerk of the Court in Washington North Carolina This annual report lists the names of the owners of property within the drainage district the acreage and category of the land and the assessed values 4 Existing Drainage Characteristics The P and U Lands which have been historically used for silviculture are drained through a network of farm ditches and drainage ditches that outfall north to South Creek South Creek is a tributary of the tidal Pamlico River which ultimately discharges to the Pamlico Sound The drainage ditches collect runoff from the fields and convey the water primarily from east to west SR 1002 serves as a drainage basin divide The lands east of SR 1002 have both controlled and uncontrolled discharge to South Creek via Gum Swamp Run Lands located west of SR 1002 have a controlled discharge to South Creek via the roadside ditches adjacent to Gum Road (See Exhibit 4 — Existing Drainage Basin and Discharge Routes ) The current drainage system which consists of a system of swales field ditches roadside ditches and control structures serves to maintain the water table below grade in order to facilitate tree farming activities (See Exhibit 5 Existing Drainage Facilities Map ) Control structures for the east basin include • CS 14 is a 36 inch riser within the east ditch of SR 1002 at Bay City No 4 controlling water levels to the south of the structure (Sub basin East South) at elevation 6 04 feet NAVD 88 • CS 9 is a 60 inch riser in the east SR 1002 roadside ditch of Small Road north of confluence of Gum Swamp Run with SR 1002 controlling water levels to the east of the structure at elevation 3 62 feet NAVD 88 Jonathan T Ricketts Inc Page 2 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 5 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydrauhc Analyses • CS 21 is a 36 inch riser within the east ditch of Peele Road at Dollar Road controlling offsite water levels to the east of the structure at elevation 6 19 feet NAVD 88 The west basin includes control structure CS 3 an 84 inch riser in the east ditch of Gum Road at its confluence with South Creek that is in need of maintenance Based on the remaining structure it is estimated that the water levels were controlled no higher than 4 75 feet NAVD 88 The west basin also includes control structure CS 19 a 72 inch riser at County Line Road that maintains the water levels for the western P Lands at elevation 6 66 feet NAVD 88 Existing offsite contributory areas are shown in Exhibit 2 Offsite flows for the east basin include a ditch on the north side of Dollar Road (located near the northeast corner of the P Lands north and east of Peele Road outlets on the east and west end of the north Parker Farm property line the Casey Tract bounded by Parker Farm on the east P Lands on the west and County Line Road on the south and the Perry Griffin Foundation south of County Line Road Offsite flows for the west basin include a ditch on the west side of Bonner Road and a ditch on the north side of Executive Road 41 East Drainage Basin The east basin includes a total drainage area of approximately 4 100 acres of which 2 100 + / acres are P Lands east of SR 1002 The approximate 2 000 acres of offsite lands are identified in Exhibit 2 as Area No 6 — the 640 acre Dollar Road drainage area Area No 5a the 190 acre Parker Farm northwest site Area No 5B — the 450 acre Parker Farm north site Area No 4 the 220 acre Casey Tract (assumes 220 acres outfall south via existing pipes) and Area No 3 — the 500 acre Perry Griffin Foundation timberlands' These lands are collected and conveyed to the east ditch of SR 1002 where it is discharged to Gum Swamp Run and then conveyed northwest to South Creek The east basin is further divided into three sub drainage basins east north east central and east south described as follows • The east north sub basin includes approximately 800 acres within the project limits and is bounded on the south by a private road known as Small Road Runoff from this land is collected and conveyed through a series of field and road ditches west to the SR 1002 ditch The runoff is then conveyed south where it discharges into Gum Swamp Run through control structure CS 9 at elevation 3 62 feet NAVD 88 This sub basin includes the offsite flow from Dollar Road (Area No 6) • The east central sub basin includes approximately 600 acres within the project limits and is bounded on the north by Small Road and on the south by Bay City No 4 Runoff from this land is also collected and conveyed west to the SR 1002 ditch The runoff is then routed north where it discharges uncontrolled at the confluence of SR 1002 and Gum Swamp Run This sub basin includes offsite flows from the Parker Farm (Area No 5A and Area No 5B) 'At the time of the modeling the offsite areas were assumed to be Area No 3 — 1 300 acres Area No 4 — 440 acres Area No 5 — 1 400 acres Area No 6 — 640 acres Since that time it has been determined that the offsite areas are less than originally assumed as is summarized in Section 4 1 However the calculations and modeling conducted have not been revised as they were based on the actual flow measurements defined in Sections 5 2 and 6 and not on the assumed offstte land acreage Jonathan T Ricketts Inc Page 3 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 6 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses The east south sub basin includes approximately 700 acres within the project limits and is bounded on the north by Bay City No 4 and on the south by County Line Road Runoff from this land is collected and conveyed west to the SR 1002 ditch as with the other sub basins However this runoff is conveyed through a control structure CS 14 at Bay City No 4 at elevation 6 04 feet NAVD 88 where it is then co mingled with the runoff from the central sub basin and conveyed to Gum Swamp Run This sub basin includes the offsite flows from the Casey Tract and a portion of Perry Griffin Foundation timberlands (Areas No 3 & 4) 42 West Drainage Basin The west basin includes a total drainage area of approximately 5 550 acres of which 1600+/ acres are P and U Lands west of SR 1002 A small offsite drainage area (less than 50 acres) south of County Line Road identified as Area No 2 in Exhibit 2 drains north through the U lands to South Creek The remaining approximately 3 900 acres identified as Area No 1 in Exhibit 2 drain from the south along the west side of Rodman Road and from the west along the north side of Executive Road to South Creek Western P and U Lands are in one drainage basin consisting of two sub basins which are connected in series by control structure CS 19 This basin includes the portion of the P Lands west of SR 1002 which drains to the west through the U Lands This portion of the P Lands and the eastern portion of the U Lands flow west and are collected in the east ditch of Gum Road The western portions of the U Lands flow to the east and are collected in the west ditch of Gum Road The roadside ditches then convey the runoff northward through control structure CS 3 to South Creek 43 Survey A boundary survey to confirm the property boundary and define the project limits and a topographic survey were conducted in 2010 for purposes of this analyses and the development of the master improvement plan The topographic survey was generated with LIDAR (LIght Detection And Ranging) technology using laser pulses to determine the distance to an object or surface A digital basemap was prepared with the measured land elevations and contour lines were developed to identify the site s features including the roads ditches and other watershed/drainage characteristics A traditional field survey was also conducted to establish control and collect horizontal and vertical data on culverts control structures and groundwater wells and provide groundtruthing and LIDAR quality assurance /quality control checks with ditch cross sections and random field grades Field reconnaissance to observe and verify the existing conditions presented in the survey and the constraints of the site have occurred regularly A large quantity of topography was generated with the LIDAR survey As a result maps with detailed site contours depicting the natural slope of the land have been prepared to determine the natural flow ways wetland flats headwater valleys and offsite flow areas (See Exhibit 6 LIDAR Map — West and East Basin Surface ) This information is paramount in determining the historic and existing basin characteristics and the proposed master plan Jonathan T Ricketts Inc Page 4 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 7 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses 5 Hydrology 51 Soils Soils at the site consist of hydric organic soils with most of these being one of three types of muck Ponzer 58% Dare 23% and Wasda 13% The remaining soils include a Portsmouth loam comprising slightly less than 5% with the remaining 2% being Arapahoe fine sandy loam Dorovan mucky peat Tomotley fine sandy loam and Tarboro sand which is the only non hydric soil within the site (See Exhibit 7 — Soils Map ) In their natural state the water movement through these soils is restricted or very restricted (hydrologic soil group D) However the current drainage system facilitates transmission of the water through the soil allowing runoff to drain unimpeded (hydrologic soil group B) 52 Well & Rainfall Monitoring A surface water level monitoring program was implemented as part of this study to evaluate the response of the existing drainage system to rainfall Ten surface water monitoring wells were installed within primary ditches throughout the east and west basins (See Exhibit 8 Monitoring Well Locations Map ) The monitoring wells were equipped with battery powered Ecotone monitoring instruments to measure and digitally record surface water levels at regular hourly intervals A digital Ecotone rain gauge was also installed at the adjacent Bay City Farm site in 2007 utilizing a tipping bucket mechanism to determine the total inches of rainfall during each rain event A rainfall event occurred primarily from September 28`h through 30`h of 2010 with an observed cumulative rainfall of approximately 12 inches as measured at the Bay City Farm site This rainfall volume was cross checked and verified with rainfall data provided by the State Climate Office of North Carolina for two gauges north (stations AURO and 310375) and two gauges south of our project site (stations NNWB and NC CN 15) According to the rainfall charts included in the Soil Conservation Services Technical Release No 55 Figure B 8 this storm was on the order of a 100 year event The surface water elevations were also analyzed during the September 2010 rainfall event and were compared against the cumulative rainfall volume to determine the rainfall versus water elevation relationship at each well The surface water elevations within the same overall ditch were then compared for a particular storm event to determine the amount of head loss resulting in that section of ditch (See Exhibit 9 Well & Cumulative Rain Data Charts ) 6 Hydrologic and Hydraulic Analysis A hydraulic analysis was completed using the Hydrologic Engineering Centers River Analysis System (HEC RAS) computer software to model the hydraulics of water flow through rivers ditches and other channels This program performs one dimensional calculations based on the area and roughness of the channel cross sections to compute the water surface profile The program was developed by the Department of Defense U S Army Corps of Engineers released to the public in 1995 and has since become widely accepted by government agencies and private firms to perform channel flow analysis and floodplam determination Jonathan T Ricketts Inc Page 5 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 8 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydrauhc Analyses A HEC RAS model was applied to determine the existing flood stages within the primary ditch system of the east and west drainage basins (See Exhibit 10 — East & West Basin Channel Stationing ) The selected east basin channel routing follows the Gum Swamp Run from its confluence with South Creek southeast to SR 1002 From SR 1002 the channel turns north to Small Road and then east to Peele Road At Peele Road the model includes the west Peele Road ditch to the northern limit of the P Lands where the ditch terminates The selected channel routing for the west basin begins at the existing water control structure CS 3 and goes south to County Line Road then east to the County Line No 2 road and then north to Bay City No 2 where it turns and runs east to SR 1002 No flows from east of SR 1002 enter this ditch Offsite discharges will be conveyed using future perimeter ditches to maintain existing flood stages The Federal Emergency Management Agency (FEMA) and North Carolina State conducted a Flood Insurance Study of Beaufort County published in 2007 utilizing HEC RAS The purpose of the study was to update the analysis for flood hazards within the county and produce revised flood insurance rate maps Our analysis was based on some of the data produced by this FEMA study including cross sections for the downstream reaches outside of the project boundaries (South Creek and Gum Swamp Run) The offsite cross sections for South Creek and Gum Swamp Run were developed based on LIDAR data and site specific channel cross sections completed at the time of the FEMA study The onsite channel cross sections within the P and U Lands used in this study were also developed using the LIDAR data obtained in 2010 and supplemented with specific onsite ditch cross section surveys Using the recorded stage data from the September /October 2010 rainfall event a simulation was performed to access the accuracy of the model (hindcast simulation) and adjustments were made to calibrate the model with the recorded conditions Manning s roughness coefficients for South Creek and Gum Swamp Run were originally obtained from the FEMA study and were then adjusted to match the measured water levels from the September /October rainfall event Based on the hindcast simulation a roughness coefficient of 0 130 was applied to the main channel downstream of SR 1002 and a coefficient of 0 012 to 0 022 for the ditch upstream of SR 1002 The coefficient for the upland areas was established at 0 030 The higher roughness coefficient for the downstream reach of the main channel was selected based on the hindcast run and is greater than the 0 048 channel value used in the FEMA Study It should be noted that no overbank flooding was observed during the 2010 storm event 61 East Basin Analysis The 100 year flow was estimated using the recorded surface water levels from the September /October 2010 rainfall event These flows were then adjusted to the 10 year flood flows using the USGS regression equations for the 10 year to 100 year ratio of the flow calculated as presented in the report titled Estimating the Magnitude and Frequency of Floods in Rural Basins of North Carolina — Revised US Geological Survey Water Resources Investigations Report 01 4207 2001 This approach was deemed to be more accurate than using the flows calculated with the regression equations which based on the observed levels appeared to overestimate the peak flows Jonathan T Ricketts Inc Page 6 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 9 PCS Phosphate Company Inc P and LI Lands Restoration January 2012 P and U Lands Hydrologic and Hydraube Analyses The hindcast simulation utilized the peak surface water levels recorded at the confluence of Gum Swamp Run and South Creek (downstream) and at the confluence of Gum Swamp Run and SR 1002 (upstream) to calculate the total flow discharging from the east basin which was estimated at 160 cfs and appears to be limited by the channel downstream of SR 1002 Discharge flows from sub basins east north and east south were then calculated using the water surface elevations upstream and downstream of the corresponding control structure The discharge for sub basin east central was determined by subtracting the flows from sub basins east north and east south from the total basin discharge A summary of the flow calculations is included below Estimated Flows in Gum Swamp Run ditch, October 1, 2010 (East Basin) Water Levels were recorded at the up and downstream reaches of Gum Swamp Run on October 31 2010 The levels which are presented below were used to estimate the ditch flow based on the HEC RAS computer program Date South Creek (PU 8) SR 1002 (PU 3) 10/31/2010 3 78 feet NAVD 88 5 77 feet NAVD 88 Based on HEC RAS the estimated flow is 160 cfs Estimated Flow from Control Structure CS 14 at Bay City No 4 (Sub basin East South) Structure consists of 6 wide weir at elevation 6 04 Ditch peaked at elevation 8 37 on October 1 2010 Stage less than weir crest assume free flow Q= 313xLxH15 where L = Weir Length H = Head above weir 68 5 cfs Estimated Flow from Control Structure CS 9 at Small Road & SR 1002 (Sub basin East North Structure consists of 5 wide weir at elevation 3 62 Ditch peaked at elevation 6 03 on October 1 2010 Downstream Stage above Weir Crest Calculate Flow based on Submergence First Calculate QfrCe Q=3 13 x L x H15 Jonathan T Ricketts Inc Page 7 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 10 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses where L = Weir Length H = Head above weir Q = 58 6cfs Submergence Q submerged = Qfree x (1 (H2 /H, ) 1 5)0 385 where H2 = Head upstream H, = Head downstream 27 44 cfs Estimated Flow from Sub basin East Central (Equal to total flow less flows from South and North) 160 cfs Less 68 5 cfs and 27 44 cfs = 64 cfs The model of the east basin was found to accurately calculate the flood stages in the area for the 2010 rainfall event This event is considered to be a 100 year rainfall event A summary of the observed and calculated flood stages at several locations follows Location Basin/Sub basin Observed Water Calculated Water Surface Elevation Surface Elevation (Ft NAVD 88) Ft NAVD 88) SR 1002 PU 3 Sub basin East Central 577 577 Small Rd (N S Jog) Sub basin East Central 769 707 PU 6 Peele Rd & Dollar Rd Sub basin East Central 774 773 PU 7 County Line Rd Offsite south of east 958 946 PU 5 basin 62 West Basin Analysis Detailed stage data from the well monitoring was not available for the upstream reaches (onsite) of this basin As a result a hmdcast simulation was not performed to calibrate the model In addition to the 100 year flood profile referenced above the model was also used to determine the 10 year flood profile The regression equations presented in the USGS Report 01 4207 were used to develop a ratio to estimate the 10 year return frequency flood flows based on the 100 year flows estimated from observed water levels The equations for rural coastal drainage areas are as follows Q10 = 188 x DA"" Qioo = 468 x DA 0 566 Jonathan T Ricketts Inc Page 8 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 11 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses Where Q =Discharge CFS DA = Drainage Area in square miles The regression equations were developed using data obtained from gauged sites located in eastern North Carolina Of the 317 sites analyzed 80 were located in what is considered the Coastal Plain Hydrologic Area As stated above these equations appear to overestimate the peak flows when compared to the 2010 storm event however the calculated flows can be used to develop a ratio in order to determine a 10 year design flow This was accomplished by comparing the actual flow for the 2010 event (on a per acre basis) to the flow calculated using the regression equation to develop a ratio The ratio showed that the observed flow was about 10 percent of the flow calculated using the USGS Regression Equation The 100 Year and 10 Year Peak flows at selected locations is summarized below The resulting peak flood stages for the P and U lands are shown in Exhibit 11 — HEC RAS Peak Flood Stages Report In general both the 10 year and 100 year flood profiles remain within the ditch s top of bank Note that this analysis quantifies the existing water surface profile within the ditch and does not quantify the flood within the fields Therefore a stage storage volume comparison (pre improvement versus post improvement) was conducted to verify the site s flood protection 63 FEMA Study The results of the FEMA study which are considered conservative show a 100 year flood elevation of 8 5 feet NAVD 88 within Gum Swamp Run at SR 1002 versus the 100 year flood elevation of approximately 6 0 feet NAVD 88 in this current analysis The mapped flood elevations for the west basin vary from about 8 5 feet to 11 feet NAVD 88 which compare to the elevations of 5 feet to 8 5 feet NAVD 88 in this current study Again it should be noted that the current study is based on an actual rainfall event with recorded surface water elevations and should be considered to have a greater accuracy than the FEMA study 64 Sta eg Storage Volume Comparison As previously stated the mitigation primarily involves the backfilling and/or plugging of the agricultural ditches in order to restore the site to its historic hydrologic condition Conservatively all of the internal ditches were assumed to be filled for this analysis Fill material will utilize the existing spoil piles from the field ditch construction mulch from chipping of the tree stumps and the future spoil from excavation of proposed perimeter ditches Theoretically the filling of the existing ditches will result in a loss of storage and thus potentially result in higher flood stages However since the earthwork will be balanced Jonathan T Ricketts Inc Page 9 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 12 PCS Phosphate Company Inc P and U Lands Restoration January 2012 10 Year Peak 100 Year Peak Location Flow (CFS) Flow (CFS) Gum Swamp Run at SR 1002 73 1 160 SR 1002 Ditch North of Small Rd 16 1 274 SR 1002 Ditch at Bay City No 4 260 685 Gum Road Ditch at South Creek 275 357 The resulting peak flood stages for the P and U lands are shown in Exhibit 11 — HEC RAS Peak Flood Stages Report In general both the 10 year and 100 year flood profiles remain within the ditch s top of bank Note that this analysis quantifies the existing water surface profile within the ditch and does not quantify the flood within the fields Therefore a stage storage volume comparison (pre improvement versus post improvement) was conducted to verify the site s flood protection 63 FEMA Study The results of the FEMA study which are considered conservative show a 100 year flood elevation of 8 5 feet NAVD 88 within Gum Swamp Run at SR 1002 versus the 100 year flood elevation of approximately 6 0 feet NAVD 88 in this current analysis The mapped flood elevations for the west basin vary from about 8 5 feet to 11 feet NAVD 88 which compare to the elevations of 5 feet to 8 5 feet NAVD 88 in this current study Again it should be noted that the current study is based on an actual rainfall event with recorded surface water elevations and should be considered to have a greater accuracy than the FEMA study 64 Sta eg Storage Volume Comparison As previously stated the mitigation primarily involves the backfilling and/or plugging of the agricultural ditches in order to restore the site to its historic hydrologic condition Conservatively all of the internal ditches were assumed to be filled for this analysis Fill material will utilize the existing spoil piles from the field ditch construction mulch from chipping of the tree stumps and the future spoil from excavation of proposed perimeter ditches Theoretically the filling of the existing ditches will result in a loss of storage and thus potentially result in higher flood stages However since the earthwork will be balanced Jonathan T Ricketts Inc Page 9 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 12 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses throughout each sub basin and no fill will be imported to the site no significant impacts to the stage storage volume are anticipated with the exception of minor loss at the bottom end of the curve that is recovered when the flood stage reaches dust above the top of bank elevation A pre improvements (existing conditions) versus post improvements (future conditions/historic) stage storage volume comparison was conducted to verify that the existing level of flood protection for the site will not be impacted 65 Perimeter Berm Analysis A berm at the 100 year flood elevation will be constructed around the restoration areas to contain onsite runoff Offsite runoff received historically from adjacent properties will be collected in a perimeter ditch as needed to prevent adverse impacts A flood routing analysis was completed for the east and west drainage basins to determine the minimum elevation of the future perimeter berm The procedure involved developing stage storage relationships for the sub basins and then performing a level pool routing for a hypothetical 100 year rainfall event To be conservative while sizing the perimeter berm elevation the storage within the perimeter ditch is not included in the stage storage calculations and it was assumed that the sub basins have zero offsite discharge (sub basins east south and east central are cascading systems) The routing was conducted with Cascade 2001 Version 10 a hydrologic multi basin routing program developed by the Hydrologic Systems Modeling Department of South Florida Water Management District A rainfall depth of 10 inches was obtained from Urban Hydrology for Small Watersheds Soil Conservation Service US Department of Agriculture Technical Release No 55 1975 The resulting 100 year zero discharge onsite flood elevations are as follows Sub Basin 100 Year Flood Elevation East North 100 East Central 92 East South 105 West 87 66 Conclusion/Recommendation The flood profiles presented for the east and west basins represent the expected existing highwater elevations during a 10 year and 100 year flood event within the P and U Lands In addition the elevations represent the current limitation for properties draining through the P and U lands In order to maintain the existing level of flood protection for adjacent /upstream properties it is necessary that these flood elevations not be increased and a by pass conveyance system be provided to pass these flows at existing flood stages Because the west basin only receives inflows from a small area south of County Line Road and a small portion of the west half of State Road 1002 it is recommended that the existing north south roadside ditches along Gum Road be maintained from County Line Road to South Creek If in the future it is decided to fill this ditch and create a slough then a new ditch should be constructed starting at the east side of Gum Road and extending to the west ditch of Bonner Road The east basin has several offsite areas which drain through the P and U lands to Gum Swamp Run including the Dollar Road basin to the northeast the Parker Farm basin to the southeast Jonathan T Ricketts Inc Page 10 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 13 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses and the Casey Tract located dust west of the Parker Farm Additionally there is the potential for some lands to the north to eventually drain south through the P and U Lands to Gum Swamp Run Due to the inherent conflicts of on going road and ditch maintenance within an environmentally restored area and the potential of perceived flooding impacts by upstream property owners it is recommended that a new perimeter conveyance ditch be constructed along the northern perimeter of the P Lands to convey offsite flows west to Gum Swamp Run This ditch is sized to maintain the upstream water levels at the current peak flood stages 7 Master Plan Recommendations The following master plan recommendations should be incorporated into the construction plans to restore the P and U Lands to their historic condition These recommendations are based on the existing drainage patterns and will restore as much as practicable the historic onsrte and offsite flows Additionally these recommendations recognize the offsite flows that cannot be incorporated into the restoration plan and provide for their continued historic flows and stages around the perimeter of the site The current use of the project for silviculture did not disturb the macro grading elements of the site The silviculture land form changes were limited to the addition of access roads and drainage ditches The restoration work consists mainly of filling or plugging the interior ditches and restoring the upper headwaters of Gum Swamp Run The existing contours and field ditches and proposed recommendations are shown on the following exhibits • Exhibit 12 — LIDAR Map — East Basin • Exhibit 13 Existing Ditches to be Removed — East Basin • Exhibit 14 Conceptual Plan for East Basin • Exhibit 16 — LIDAR Map — West Basin • Exhibit 17 Existing Ditches to be Removed — West Basin • Exhibit 18 Conceptual Plan for West Basin Due to the size of the project the work has been phased for construction The following summary of phases and master plan recommendations should be incorporated into the construction plans to restore the P and U Lands to their historic condition 71 Phase 1 Recommendations Phase 1 includes sub basin east south and the eastern half of sub basin east central in the east basin (see Exhibits 4 & 14) Phase 1 consists of non riparian wetland flats with relatively flat slopes and the majority of the land area has elevations ranging between 10 and 12 feet A summary of Phase 1 recommendations follows • The interior field ditches should be filled using a combination of the following fill sources adjacent spoil from edge of the ditch 3 6 cut material from the interior of the field cut material from the proposed perimeter ditch mulch from chipping the tree stumps and fill from borrow areas and/or plugged with impermeable earthen plugs (see Exhibit 13) Jonathan T Ricketts Inc Page 11 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 14 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses • The large existing north south ditch (County Line No 1) should be relocated to the east boundary of the property This relocated ditch and berm will accommodate the existing drainage discharging from the Casey Tract The berm will prevent onsite surface water from discharging into the relocated ditch The proposed ditch could be oversized to meet a portion of the soil volume needed to fill the interior ditches Alternatively the ditches could be constructed only to accommodate the necessary offsite flows and fill requirements of the adjacent berm • Construct a berm and ditch along the south property line The berm will prevent onsite surface water from discharging from the property into the adjacent ditch located on the north side of County Line Road The proposed ditch could be oversized to meet a portion of the soil volume needed to fill the interior ditches Alternatively the ditch could be sized to only to accommodate the fill requirements of the adjacent berm • Evaluation of the existing berm along the east side of SR1002 should be conducted to determine if the minimum onsite perimeter berm elevation requirements are met (see Perimeter Berm Analysis) If the existing berm is lower than the projected flood stages then the existing berm should be raised or a second berm should be constructed in those areas that do not meet the minimum elevation of the 100 year storm event • The existing private roads Bay City Nos 1 3 and 4 should remain to provide access during the monitoring period These roads will also provide additional benefits to the entity charged with the long term care of the property • Plug ditches adjacent to Bay City Nos 1 3 and south side of 4 • Verify the existing conditions and original design for the Parker Farm to establish the intended discharge elevation • Careful consideration should be given to the low field elevations adjacent to State Road 1002 Proposed outfall(s) consisting of a berm with a spillway needs to be incorporated into the perimeter drainage so that the depth of standing water in this area does not prevent establishment of the proposed bare root saplings • Estimate the remaining useful life of all existing pipes within the Phase 1 project boundary to determine if replacement is needed 72 Phase 2 Recommendations Phase 2 also in the east basin includes sub basin east north and the western half of the sub basin east central (See Exhibits 4 & 14 ) Phase 2 is split between non riparian wetland flats and headwater wetlands with a headwater valley between Small Road and Bay City No 4 A gently sloping valley exists between Bay City No 4 and Small Road which aligns with the Gum Swamp Run channel shown on the Soil Survey of Beaufort County North Carolina issued September 1995 A summary of Phase 2 recommendations follows • The interior field ditches should be filled using a combination of the following fill sources adjacent spoil from edge of the ditch 3 6 cut material from the interior of the field cut material from the proposed perimeter ditch mulch from chipping g the tree stumps and fill from borrow areas and/or plugged with impermeable earthen plugs (see Exhibit 13) • Construct a by pass ditch and berm along the north property line This ditch and berm will accommodate the existing drainage discharging from to accommodate flows from east of Peele Road (Dollar Road) and Parker Farm The berm will prevent onsite surface Jonathan T Ricketts Inc Page 12 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 15 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses water from discharging into the by pass ditch The proposed ditch could be oversized to meet a portion of the soil volume needed to fill the interior ditches Alternatively the ditches could be constructed only to accommodate the necessary offsite flows and fill requirements of the adjacent berm • The alignment of the proposed by pass ditch and berm should follow inside the north property line starting at Peele Road and heading west along the north property line of the project Upon reaching Small Road the alignment of the new bypass ditch will then be on the north side of Small Road • The existing interior private roads (the eastern portion of Royal Road and Small Road) should remain to provide access during the monitoring period These roads will also provide additional benefits to the entity charged with the long term care of the property • Plug ditches adjacent to the Benfewell Road Royal Road and Small Road (Plugging of the southern Small Road ditch should not commence until the by pass ditch is in place and operational ) • Connect the eastern Parker Farm outfall located at Peele Road to the existing ditch along the west side of Peele Road to discharge the water from the Parker farm (Area No 513) at its current control elevation The road ditch on the west side of Peele Road should then be connected to the proposed bypass ditch Alternatively the control elevation for Parker Farm Area No 5B can be raised by removing the existing plugs within the perimeter ditch and allowing the Parker Farm water to equalize with the Phase 2 water via the existing low points along the perimeter berm/spoil areas that separate the P Lands from Parker Farm s north boundary • Access to the Weyerhaeuser property is currently provided via Royal Road dust west and north of the dog in the road Access to this property must be maintained If acceptable to Weyerhaeuser an alternate access will be provided to their property via a road to be built within the proposed berm/ditch section • The ditches adjacent to Royal Road will be plugged and four sections (100 in length) of Royal Road will be removed and replaced with at grade rock pathways to allow the discharge of surface water from the south side of Royal Road to the north • Careful consideration should be given to the low field elevations in the northwest corner of Benfewell Road adjacent to the Weyerhaeuser property A proposed outfall consisting of a berm with a spillway should be incorporated into the perimeter drainage by pass ditch so that the depth of standing water in this corner does not prevent establishment of the proposed bare root saplings • Reconstruct the headwater valley into Gum Swamp Run Investigate the potential to connect the northwest discharge point of the Parker Farm into the valley If appropriate consider moving the discharge point of the Parker Farm from the northwest corner to the western property line (approximately 600 800 south of the present location) in a defuse pattern The valley will continue to discharge to Gum Swamp Run at the southeast corner of Small Road and SR 1002 • Estimate the remaining useful life of all existing pipes within the Phase 2 project boundary to determine if replacement is needed Replace the three existing pipes (see Exhibit 5 Pipes 6 7 and 8) located at the west end of Gum Swamp Run at the connection to South Creek Jonathan T Ricketts Inc Page 13 4/17/2011 Updated 01/31/12 Compensatory Mitigation Plan Appendix B 16 PCS Phosphate Company Inc P and U Lands Restoration January 2012 P and U Lands Hydrologic and Hydraulic Analyses 7.3. Phase 3 Recommendations Phase 3 includes the entire west basin. (See Exhibits 4 & 18.) Phase 3 consists of four types of communities: hardwood flat (elevation 10 -13'), non - riverine swamp forest (elevation 6 -10'), headwater forest (elevation 5 -6'), and riverine swamp forest (elevation 0 -5'). A summary of Phase 3 recommendations follows: • The interior field ditches should be filled using a combination of the following fill sources: adjacent spoil from edge of the ditch, 3 -6" cut material from the interior of the field, cut material from the proposed perimeter ditch, mulch from chipping the tree stumps, and fill from borrow areas, and/or plugged with impermeable earthen plugs (see Exhibit 17). • Construct a berm and swale along the east, south, and west property lines to prevent the loss of surface waters to the ditches in the adjacent roadways. On the south property line, extend County Line Road to the west and re -route the north -south ditches along Gum Road to Bonner Road via the proposed County Line Road extension. Connect the new ditches to the existing ditch at the west side of Rodman Road. • The existing interior private roads (County Line Road, Bay City No. 2, County Line No. 2 and Gum Road) should remain to provide access during the monitoring period. These roads will also provide additional benefits to the entity charged with the long -term care of the property. • Plug ditches adjacent to the Bay City No. 2, County Line No. 2, and Gum Road. • Proposed outfall(s) for the west basin will be located within the vicinity of the existing outfall at the north end of Gum Road. The outfall(s) should consist of a berm with a spillway for discharging the waters to South Creek (see Exhibit 18). • A second outfall should be constructed through the existing berm adjacent to the former Bay City Farm outfall ditch at the northern-most boundary of the project (see Exhibit 18). • Verify the existing outfalls to South Creek from the existing wetland areas to determine if addition control is needed (see Exhibit 5). • Estimate the remaining useful life of all existing pipes within the Phase 3 project boundary to determine if replacement is needed. Jonathan T. Ricketts, Inc. Page 14 4/17/2011 Updated: 01/31/12 Compensatory Mitigation Plan Appendix B -17 PCS Phosphate Company, Inc. 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Compensatory Mitigation R« Appendix Em PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 0 �(§ r \j ` /li ® ® |7| 0 4. }� x . 77- ^z \ i§ §� � . 0 � I: , 2 } 71 . / , U) (n C)w , ' O 6 = G ., m < Of ! § z ! }k \a ` ^4 4� �. �� \� -JO e ' \ \ \A . /_ § 06 LL % ) L / < 3 � ¥ � I\ » X \ { w , \ \� / : \k\ £ » ®| f Jz : =ww ;A a < : 232E /=;) Compensatory Mitigation R« Appendix Em PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 \ 2 ®( «' ) k; ! w�i , E ! ! $ 9 R : £ .. Cn } § } k � \ I z § § & U) ) ) LU § = o 7 \ ® \ a. � 6 0 C: w §� -J Zg \ \ 2 U- �CD $ a )� 0 / k2 LU � C I 6 a OD w_ CO o � 7 w Compensatory Mitigation Ban Appendix B-25 PCS Phosphate Company, Inc. P and U Lands Re t aeon January 2012 EXHIBIT 9 - WELL & CUMULATIVE RAIN DATA CHARTS Compensatory Mitigation Plan Appendix B -26 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 (Say:)ul) Slenaajul u!W 06 -1 lelule21 0 0 0 0 0 N O O O O O O 00 lD V N O oo:oo:ai 0 w 0 0000:0 �: G4GG OOOOST o 0 C 00:00:90 00:00 ZT a o 'i N M 00:00:80 N 00:00:81 7 7 D D U D_ d 0_ 00:00:60 0 0 I I ODOOST 0 0 00:00:90 OO:OO:ZT o 0 00:00£0 OO:00:81 p o 00:00:60 d � /� M OO:OO:SI o 00:0090 -0 �I� OO:OO:ZS o a I r 00.00.80 00:00:60 .. 00:00:60 O o O { N O ,a OO.00.ST OU O 00:00:90 OO:OO:ZT O o /.* '�.. 00:00:£0 00'00.81 0000:60 O o O t OO OO ST r' o 0 00:00: 9U 00:0071 o 0 O i ii ( ' 00:00:80 00:00�6I % 00:00:60 02 U 00'00'ST p o 00:00:90 d _ OO:OO:ZI 0 OO:OO:f0 00:00:60 00:00:60 p 0000 :ST L vl 000090 0 � V LL1 W OO.Zl £° ° ...r J 00:00:80 = 00.00:60 0 "4 DD:DD:ST Z (�y / 00:00:90 9 ti"F... 00.00:Zi 00:00:80 00:00:8T 0000:60 p 00:00:60 00:00:90 00:00:a v 00:00:£0 b o . q " r 00:00:80 6. 00:0060 0000: ST 0000:90 h '.. 00:00:ZI '.. 00:00:£0 0000: ST 00:00:60 00 M WARN 188j) uo1;ena13 o3elanS aajeM Compensatory Mitigation Plan Appendix B -27 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 (say:)ul) sleMa;ul u!W 06 -1 Ie;ulea °o o° V N O O O O O O a--1 r-I ri 00 l0 N O AR AF Fv- 00:00:51 � o 00:0£ : LO 00�00.00T (O -- .. 00:0£:91 o 00:00:60 00:00:81 00:0£:OT O o Lf1 ry) OO:OO:f0 ° 7 D D :D 0 ' U 0- a a 000OzT o a 00;0£:70 y I I I 00:0£ £i p o 00:00:90 00:00:5' o 00:0£ :LO j OO:OE:9' 0 0 000060 d , V j 00:00:91 O OO:O0E:0 T o 0000 £0 Q 00:0 OO OO':z O o 00:0£:70 00:0£ :f0 p o 00:00:90 Q OO:OO:ST p o OO:OE:LO ,6 GJ N 00:0£:9' > 00 ?00:60 O o 00:00:81 IR \ 00:0£:05 O o �V 00:00:£0 ° 00:0£ 6I -? 3 C 00:00:21 O � OO :OE:40 y 00:0£:£T p o O 00:00:90 r. 0000:51 qo to O 00:0£:9I o 00:00:60 d W 00:00:8T z 00:0E:01 A W CS ti OO:Of:61 OO:OO:ZT p o 00:0£170 co IL (/) A oZUI t o� 00 :00:90 00:OE:LO p o LLI 'x OO Of -LO e 00:0£:90 0000 :60 000081 00 :0£:01 O ° 00:00:£0 d 00:0£:6' OO:OO:ZI p oti 00 0£:40 OO:Of:fI o 0 00:00:90 000"0 0 0 00:0£:[0 I 00::60 M ° M:Of00:iO 00:00:81 ° 00 0£101 OO:OO:f0 00 0£ 6I o OO:OO:ZT c a 00:0£:40 o OO:OE.ET 00:00:90 ^' ° 0 OO:OO:ST n 00�0£'d0 i QQ 99 N O 00 TD N O N III c-I ci (on9N laaj) u011en813 a:)epnS aaleM Compensatory Mitigation Plan Appendix B -28 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 (SaPul) Slenaajul uIIN 06 -1 le}ulea o O O 0 0 0 o O o O O N O O O O O O r-1 r-I -1 00 1.0 CI' N O 0 000051 n — 00:0£:70 0 w 00:00:81 ° 00:0£:10 ^� 0 o n m 00:0£:01 ry 3 > > > 00,9999 ° U a a a oo:o£ £T ° I a 00:00:E0 O 00:0E :91 ° ` 00:00:90 ^' 0 Oo:OE:6T o 00:00:60 � O 0 OO:OO:ZT o i o M 00:00:51 Q OO:OE:4o 0 OO:OO:ST ° t' OO:OE:LO 0 o 4 00:0£:OI „ O 00:0£:ET N 00:OO:EO 0 00:0£ :91 W a 00:00:90 � o N Oo: oE:6T \ 00:00:60 .°. 3 O f ° OO:OO�ZI .: O C 00:00:ST o V 00:0£:40 0 ++ 00:00:81 Ca z 00:0£:10 O - ° OO:Of:OT °� :• yo OO:OE:ET p o� W 00:00:Eo 5 00:0£:91 m o 00:00:90 ° :oE:6T 00:00:60 ° i WJ 00:0041 p ° 00:00:51 t o ?" 00:0£:40 LA 00:00:81 o 00:0£:[0 a r. � uU-UU LC 00:0£:OT 0 ° 00:E'£T t 00:00:£0 00:-91 O 00:00:900E t OO:OF6T oti sasx 1 00:00 60 6 '. OO:OOZI N n �n:nr:ln o 00:00:51 n �" a 1 00:0£:40 00:00:81 ° ._ 00:0£[0 UU-UU- LC o -� 00:0£:01 'b 01 00 lD Oft M N O ri (DAE)N 1883) u01jena13 a:)ejanS aajeM Compensatory Mitigation Plan Appendix B -29 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 (S843ul) Slenaa3ul uIW 06 -1 leluleH °o o° C0 0 0 o O o N O O O O O O a--I a--i -1 00 lD N O OO:OO :S1 OU o� 00:0£ :40 Ab 00:00 :81 w o 0 00:0E10 W-UV LC 0_ oo:0£:OT O o O v 00 0) 1-1 99,99,99 P D 0 S 00:0£:£1 0 0 v � a o. oo:oo:£o y 00:0£:91 I I � o 00:00:90 00:0 :6T 00:00:60 O o OO:OOZ1 O o : OO:OO:ST o M 00:0£:40 a 00:00:81 Q I 00:0£:LO o uu-uu Lc • O 00:0£:01 O o nn gn 0 00:0£:£1 p o A' N 00:00:£0 1O W > 00:0£:9T 0 0� . A 00:00:90 y 000£:61 N 00:00:60 C 00:00:11 O °„ E O 00:003T o� 00:0£:roo V 4-A 00:00:81 y 4-+ 00:0£:LO 0 0 y O 00:0£:01 O o —! Vj� 00:0£:£T p o� 00:00:£0 0+ 00{7£:91 •' O 00:00:90 � � jOO:OF61 I 0 00:00:60 Q X i 00:00:11 Ou oti M Uj ,. J `' oo:oosl o 0 00:0£ c0 00:00:8T .% 0 0 _Y oo:ouO I.i S 00:0£:OT o °.. 00:0£:£T o o 00:00:£0 00:0£:91 " o 00:0090 0 '� 00:0£'6 00:0060 oo n - 0 OO�Bf�2'1 00:0011 H u M:OF 10 0 0000:51 N 00:0£:40 ^' 00:00:81 00:0£:LO 0 00:0£:01 N n *90 go N O 00 lD N O N WARN 1883) U01jen813 a:)e:pnS jaleM Compensatory Mitigation Plan Appendix B -30 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 Compensatory Mitigation Ban Appendix B-31 PCS Phosphate Compa of Inc. P and U Lands Restoration January 2012 ar§ \ } ( K§| \ k// «< � � 7 . c !J= � \ /}k . !7 cc i .. C 0 cc k : $ m .1 ` % ( -= 2 ? c = m 2 ) 7 CC C)) j» w! � \ E u ƒ - z ° » Z \ _ ! = o m z » L 7 )22$ ) / �)E\ W _ \ - 2 _j zz Z $ § / \ ( a /= r m = m �In– : w )CUE`° CU w \ \ 2 �y - Z ON DWI 4WOO .® o w 2 X ± Compensatory Mitigation Ban Appendix B-31 PCS Phosphate Compa of Inc. P and U Lands Restoration January 2012 EXHIBIT 11- HEC RAS PEAK FLOOD STAGES REPORT East Basin —10 Year & 100 Year Analysis West Basin —10 Year & 100 Year Analysis Compensatory Mitigation Plan Appendix B 32 PCS Phosphate Company Inc P and U Lands Restoration January 2012 I O) a y f6 C Q } O O r 06 M m } O r C N M m N (0 w O CL N CUy d C a °o LL Y f6 N CO 9 U W 2 0 XX w Compensatory Mitigation Plan Appendix B 33 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Q Q 0 n n (D Q o O O n (N D O N M O O 0 O 0 O 0 O M O O O O O (D O M m a LL d' 01 O Q 4, M W O o N co N n M N O O 7 N co M aD u) N L aD aD N M a) T aD aD O n M N O N O M M N 10 O n Q T (D M o (D (D (0 o M M r N O N O T (D co Q O O O O vl n M (D M M N M N N N N c o H co tD m O O) -- O) O co Q n Q n (D o) Q h N O M aD O (a n Q O n O O n O) N N O Q O Q _N O) O (D o) o aD o O n M O (D tD n o (O o) o) W n N n N (D N Q N W N n co (D N Q Q Cl) Q n N (O CO (D O Q N N N N N N N (D M (D O 2 LL O Q W M m n N u') m n N (D Q M o) aD Q O CO O Q 0 W 0 Q O aD O O Q Q N O M O OD n n Co O M (D Q n W O O N C O O O O cc O O N O O O U � m > O (D a y M W O O O n CO aD O O O N N O m D. _M _M M N aQ 7 n Q n (p Q n O N O O O O O O 0 O 0 O O O O 0 O o O n N_ M (D O (n (D m �_ T O n O (D O p O O O O cc cc Q N O O O o O O O o O M O O O O O O (n O O O O O O O O O O O O O O O O O O o o o O o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O W (D CO (D Q (D (D (D 4, O M n M n M (D N (D Q W N o T N > Q n n N aD (D Co w O W n (D n 'o n (D n to N N w n O T W n co m o) n aD n n (D n O (n (n n (D n (D n (D n (D n Co (D 0 co Q (D Q (D W Uv W (n Q Q Q Q (D C v c U co Q W n co n M N (D aD (D O Q O (D O O O O a0 M n n u) M n n (D M n (D (D N n to (D n O O M (D o) O Q m N ap n O n n O aD m rn n m n n (o n D a n n (o n (o n (D n 0 n m (o (D (n Q D Q (n W W 0 0 0 0 0 0 o of o 0 0 0 0 0 o o o 0 o o 0 o o o o) m rn W cc Q Q O Q O Q cc Q Q cc Q Q cc Q Q o LD (D (D O (D O (D O (D o (D (D (D o (D M Q M Q o) N o) N (D (D (D U � O O O O O O U O O O O O O O O O O O M O O O O O O O O O (D O 47 O (D O 2 (D O (D O O O O O O O N o) O n o n O (D o to o +� N (OD N (OD N (n O (D O N W (D O N N N N Cl) n N M n Q (D O co Q (D o M Q co C CD w a w a w a d w d� w ¢� w d� It w¢ a w a w¢ w a w a w Lu w¢ a w a > w > w > w y w > w > w > w > w > w > w > w > w > w > O> O> b> >> 0 0 0 0 0 0 O> 0 0 0> 0 0 O 0 0 0 o O> 0 o O> o 0 O> 0 0 O> 0 0 O> 0 0 O> 0 0 O 0 Q Q `() °o °o (D 0 �O v ho� v 1, n u) (D (n ti P, n n O O O O O O O O 00D W ` O O n n f� n N N N W W (D (D M c') N N O OD m to to (D (D V N N N N N N N N N N N y V V U L L L L L L L L L L L L L L L L L L L L L L L L U U U U U U U U U U U U U U U U U U U U U U U U m m m m m m m m m m m m m m m m m m m m m m m m m m m m m o a a v a� v o a a v v -E v a E v v v p v v E E E E E E E E E E E E E E E E E Z D D m m a m m Ul m m u) a m m m m (n m m m m (� c3 v (3 U v .I 0 .� B p fA co) CO to U N N V) in N in in in N A A A A A A A T A A T C C C G C C C C C C C C C C C C C m a m s m a m s m o m a m a m a m s m m m m m m m m m m m m m m m m m m m Compensatory Mitigation Plan Appendix B 33 PCS Phosphate Company Inc P and U Lands Restoration January 2012 O N O) a 0 cc c Q CU (0 } O O OAS f0 (D O C y tC M N M W V- 0 CL N N rn f6 U) O O LL Y (0 N a U W 2 0 a X X W Compensatory Mitigation Plan Appendix B 34 PCS Phosphate Company Inc P and U Lands Restoration January 2012 .- O I+ O Of (0 O 00 (n (n M (n N L V o O O 0 0 •- 0 O 0 (D 0 O O 0 0 O O 0 0 O 0 O 0 O 0 v 0 LL O N O V V N_ O N O O O In � n _ O 1� -p O O M In N 0) O M M (0 V V 0) r- M M O V (n CO M N I- h N M (0 M V M 7 M d v H OD M O r- 00 co M N N In co (D M (.- O O M N M OD M O N 00 00 M M 1.- N N O N N O M O O N O 0 W Q N IN M Oo N u Q ((( IN O N LL (n O n N (n T O M M 0) Q) N O W O n N 0) M O M (0 N c O O O O 00 O O 00 U � m m l(! D7 V O N (NO N � D7 V a) N (OD G 0 O O O N O O V N a) O M O N (D O O N M O O O O M O O O 0) O O O O O O O O O O O O O O O O O O O O O O O O O O 0— O 00 O O 00 O O O O 00 W O O O aD M IO O O N 0) N 1� r� O M (n O N Q) O O n n m a (n It (n v a v V M M M M M W W 00 (n O O U (- O O a) W (D N V N 00 00 f� r N O N (n O N O O O n n m V (n V V V 7 7 V M M M M M W .-. rn m (0 _ v v ao m n m oo w (n LN V) O O W o (D 0 oD 0 (v a) o O M O O O U � c_ 0 0 (D 0 0 0 0 0 0 0 0 0 0 (D O O O O O O H � O Q w w Q w a w Q w Q w Q >- > W } } } d } °oo } °oo > °oo °oo > °oo > °0O } o m m (0 M O V V T O) M M a) T TI. V t- V � V 0) M o N o N N 0) N a) M Cl) M co N (n In U) (n 7 (n 7 O O V M M M M N N N N N N U L L L L L L L L L L L L L U U U U U U U U m U m U V (a U m V m m m m m m m m a) m E E E E E E E E E E E E E m 22 m m 22 m m as? 2a) ry) CO 0) En CO) U) W W CO CO V) Cn 0 G c c c c c c c c c c c c M m m m m m m m m m m m (o f 2 i 2 2. Compensatory Mitigation Plan Appendix B 34 PCS Phosphate Company Inc P and U Lands Restoration January 2012 N O N C Q (0 N } O O r f�0 } O r C N f6 CO N d 0 O_ 0 CA d O) �0 'a 0 O LL Y CO d a U w 2 CD _ .n X X w Compensatory Mitigation Plan Appendix B 35 PCS Phosphate Company Inc P and U Lands Restoration January 2012 M N W r fD O O n M I N LO O In CO r M r fD N N fD uD N m n m O O M M (D O O O O O O V M N M � � N N 'C U O O O O O O O O O O O O O O O O O O O O O O O O O O O O a LL I co m N OI m m Ln Ln N n N V N N c', N N O m L V O r V O Ln V O m N c0 m M fD V m W O) V M O V m r M O O n r o lD O m co m m m v Ln m fD Ln o O m N M V V n N m m M m M V _ N N N M a Cl) In O N M N O lmn o G) m M O M O Ln OD co M m D) Ln V m O O V N 00 N n n m m w V .- v o r OD M m CD r O n O w m fD N OD m I aD (D m n m o M O OD n V N V o o N O O M m m m CD aD m Ln n M O r Co V OD N O Le) Ln r Ln Lo j OD o m o fD n m fo co M o n Ln M � MIS m aD LL fD n N M m n M Ln O M O o O fD O —N ui Ln — N Ln M V n O c0 r N O O V M m m m O O N N V M V LO OD V m M V n Ln r M uD O M j C O O O O N O O o o o o CD V N N M V N N CO) M N N U I � m o o N m N m m o r o J n m O m O o O m V o M o V r V m c� O a M_ O o O o m M O co Lo N N m m m r m G O O O O n O n O N o 0 O m N O O O O O O O O O O O O Ln CD N O N Ln N an an V N m w O J O O O O O o O o O O O O O O O O O O O O O O O O O O M O O O O O O N o O o O 0 o o O O O O O O o o O O o o O O O O O O O O O o O O o o o o 0 0 0 o o o o o o o o o o 0 o o o o o 0 o o o W V ^— o O V N� O V O N OD m o O OD m ao 07 r o V m N r O Ln V M N OD n m LO N O OD LO n Ln n Ln r V n Lo N m O m O n v O n .- m m aD n n Ln Ln to OD V V V V V V V V m V V M V N M '- N O w c W I v M fo) m (n n n N N C v U V n co M o m OD m n o m OD m m V fD M fD OD r N O M N n CD O Ln m r Ln r Ln r Le) n V N L� to o m r o fD d' W r O) m DD n n Ln N Ln V V V V V V V V V o V V M M N M N O O W co o O O o o r n w o fD m M M w r n r r M V M V M V Cl) V m �- M Ln In Ln Ln M In M O M (D C', m M m O V O V m m O 0 O 0 V o V o U � I c_ I n M n M r M r o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o Lo m 2 Ln Ln Ln Ln n In n Lo o o o 0 0 0 0 0 0 0 0 0 � fn OD m OD m O m n N Ln M r N o (- o I- o n o 1- o � fmD V F .� _ M O M In M Ll7 M O M In m c0 Q Qj 2 Q 0Q' Y W w> W uYl > < w LL w i u� 11 ul i w Y Q2 u! 11 ¢2' W Y aR' W w Y Qa' W w Y Qa' W I�;' } aW' LLl L > > > > > > }l > > > >l > > > > > 0 0 0 0 0 0 0 0 0 0 o o 0 o o 0 o 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0o N N N M m �- �- r r O O 0 0 0 0 O 0 o o o 0 0 0 0 0 0 m 0 m 0 0 u) tD m LD OD r 0 r 0 Co M(n O O O d' LD n OD n n M n M In 0 0 0 0 0 0 0 0 0 O 0 O 0 0 0 o n b (+) V M V fD Cl) w M to N m N m m LLD LA V V M M N N m m m m m m m m m m m m N N N N N N N N N N N N N N N N N N U U N U m U m U m U a) U U N® U U m U U U V U U U V V U U U U U U U U U U ND m m (D a) m m m cc (D W N N X m N w m m m N m w m X 11 N o 0 0 0 0 0 0 0 0 0 0 0 0 0 o D o E E E E E E E E E E E E a s m m m m m a m m m m m m 0.' w 0 it d' w w n (n u) co) u) N (n fn N y to m E E E E E E E E E E E E E E E E E c c c c c c c c c c c c m m (z t7 (7 C7 i i g i iW Compensatory Mitigation Plan Appendix B 35 PCS Phosphate Company Inc P and U Lands Restoration January 2012 I O N O a U) 21 (0 C Q CO d } O _O CU CU d O C rA CO CD Vi 0 1] r V- 0 CL m of rn d rn f0 0 O LL Y (0 N NQ LL U w 2 0 Q L X w Compensatory Mitigation Plan Appendix B 36 PCS Phosphate Company Inc P and U Lands Restoration January 2012 M N O O O M M N N � - O O O O V O O O O O O O O O O .1. O 0 O O O O m N In M m O N O O(D N m N 0 f` r` r` L Q O m O In m O) M M O M r m N O OD M f` 0 tf m N (n m O y m M M f` co � M m O m Q) N N M t N 1D O a1 O m m v m 0: y M N M r O M m a m N N N .- '0 l a a 1D .- D) V' m N O N V M N LO N (0 f` m O I N 17 M rn m W V M V m (n m O V m O o) M O M o N N W_ S D) M r OO m m m M V (D O a N (D m O N m (n (n r- M m M M O N M O N m D) co N O M In O )n 7 O (D (D o N M M N 3 N rn N (D N (D N V C m m M 1D M O M 7 0) — m M o) M a N I O m h m 0 M a O O m O D) V N 0) CO W� C In )n V M N M M N N O O > r� r` — m m M (n N O M m m M u) O O M N t") 0 c') 10 O N O O O O O O O O O O O O O O O O O O O O O O O O O O O O (n 0 0 O O O O O 0 o O O O O O O O O 0 0 O O 00 O O O O O O O O O 0 O W m CP m M m LO a m M (n m r. — I v M ao a m V CD O (n M a m O M r O to D) In m A Uj O m m m m m N m r. O r (n m rn m y I m 7 O w rn 0 m to N N 4 L) co O 0) O V O N m M M O m Ln O a M r m O (D m (") m N m O m m m r` , M t0 M N m M m m M N r m O LO m m M V m m m V m m I o) o) o) o), O D) O o) m 0 m 0 T O O O N N m � m � M N M N O M O M W N N M M V V t V V q q tT V C O O O O O O O O O O O O O 0 O 0 O O O O O 0 O 0 O(D O O O O O O O O O1 O � m m m m m m m m m m m m m m m y m m� m m (D m a m� m m� rn m� rn m� rn m rn y m m rn y m rn m rn rn m O ... of o w� QW ug � ry¢¢J w� w S w n < X n w r X w r X � r w d } ro } 0 r 0 r 0 r r 0 r O r o r O r 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 N m (n a(n D rn O(n o a Om ) V ob ) N ` N ` "IN v v w O m b m to m N N o) O m m M m M m M M N N N N o _ (n (n b (n � Oo Go co op a0 pppp m 1010- r m m m m m m co (n m C7 O M m N m N m V L U L U L G L U L U L U L D L U L U L o L L V L () L L U L U L U L U c a m MM W W MM MW W W W MW W W W c o w > E E E E E E E E E E E E E E E E E E K m m m m m m m m m W W W m W m m W W CO CO rn rn rn rn CO rn rn U) U) U C, Cn rn C C C C C C C C C C C C C C C C C C W i W i W M W M W i W 2 W M W 1 W i W 2 W i W 2 W 2 W 2 W M W i W i W 2 Compensatory Mitigation Plan Appendix B 36 PCS Phosphate Company Inc P and U Lands Restoration January 2012 Compensatory Mitigation Plan Appendix B-37 PCS Phosphate Compa nA Inc. P and U Lands Re Lora an January 2012 !e§ � ■ ■ � , > CD ^ ��`�` ■�! „ !,l,,,, . ,. ,�.... �- .. ■ ■ ■,,,,,,,,, - e � eea: o � ; 4,`2kf - » ) Uj ƒ / 2 ƒ c = } 3 U) j � 9 C) ' �j \ ; o m a. LUIX fr \�z$ e o ) o m §� P m e W m Q U)EO <® § ^ /� &j § \ § ( N � CO M X . w Compensatory Mitigation Plan Appendix B-37 PCS Phosphate Compa nA Inc. P and U Lands Re Lora an January 2012 Compensatory Mitigation Plan Appendix B-38 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 eT-77-5 LK i { M Ca t ate! / 7 � k)$ |§; = § i 3 y 6 Uj \ ¢ _ > � o , 7 2 ( y \ ) $! 2 ƒ 2 \ + k) Z $ �| k / \ ) | 7 / /C7?§ w (or < < #f ! . < m g k Ilse _ , ) } ` e 7 ®f m /ƒ ., !| \ \ 3 d 7 � 1 ` ° 7 Compensatory Mitigation Plan Appendix B-38 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 aLL � � I 1 tY o €U LL � / CDC) Wra N �� C m m c` m s ID D o z r" �a ; � m �r ac UA 4X m ` m mk M W a 0 LL m yE rt m T ° m q Tj Cl fn d m O ` m CZ oc�m C c- 0 a > w a'i O m W C Q' M a. o qm- CU ^ lu t Q U W rr LL Q, m LL C = Q fY a X d �E r` ♦ "m 2 CL o .0 z m x m` o V w t0 LL qb � k C I- S Q-J� w�O O H H 1 ♦ 1 o m 12�s x as 2 0 70 X W C 0 < mm f U M mw I ro ag cr < r ch°- r" aaOWp Lo o „U n a`mQO cmu� ♦ yEO ° of /" t7 m e- CO me m x m U W 1 tY o €U LL � imW a CDC) Wra N �� m c` m s ID D o V) CL a C ; � m �r ac UA 4X m ` m mk M $ m yE rt m T ° m q Tj Cl fn d m O ` m CZ oc�m C c- 1 tY o €U LL � imW a CDC) Wra N �� 3ro �m � o2s� H4 a CD J m m c` m s ID D o V) CL a C ; o Z O a E .. C Cl fn O ` m D N a > w a'i O Compensatory Mitigation Plan Appendix B -39 PCS Phosphate Company, Inc. P and U Lands Restoration January 2012 \ } o � ) ■ „«!„ !I!,! / \\/ � }k) .& )!3 $ } ! $ § . �\ } K ) E [ 3 Q) w k E n k ) S § } 2222! Ui _0� _j\7 k�§ia m 000 <e E� }_ / \ u 0. % i e § Compensatory Mitigation Plan Appendix B-40 PC/ Phosphate Compan,mc P and U Lands Restoration January 2012 £ � OD _ X X W Compensatory Mitigation Ran Appendix B41 PCS Phosphate Company, Inc. P and U Lands R @or !a an January 2012 § r!$ ^ C ^ M ~� !~^ | # » \� I } E ` M \ | \ ƒ ) & � § ƒ @ § 2 .. . CO > ƒ k 22 o M E a / \\ E Zak a° @ Cr § 5 E % #E *£ @ m \ 8 k 0 6 ( _u- � / @} @b\ f 2 ƒ2� In // Cc \—i $ z § .■$ k) P } a j \ » ]a -0 a: CO « $ 2 'k � u .. ) (L CO C . T- . G ' 1-- � M ƒ/ -I-- J\ k ci CL g7 \ w )E $z 4) /f �0 au, \� A$ � $I »2 z2 P10._� Compensatory Mitigation Ran Appendix B41 PCS Phosphate Company, Inc. P and U Lands R @or !a an January 2012 Compensatory Mitigation man Appendix B-42 PCS Phosphate Company, Inc. P an U Lands R rorla an January 2012 8 !E$ �a =z! ƒ ®f ! t 2 � u= ) { ! o Vic °v.1| |�` � o \ , m 2 z CO £ ! U) ' � CD ■ b 'L 'L a ! \ J o 7 5 [ \ K { w § \ S 6 X ) � - 222§% , U SWc »CU B M _ § 2 -1 zz 2 )�00 _ L2 .! OU §k9 ) L a \� } { E� %a 22 }� «� §\§ ..- . 00 -- e $ . 11 �U- @ I \ �kz 4-- , W _ • . 3 a C / k ' |° 7■ �� ®7J •. . ! E ( a� J \ ., Q. f E ` - e .....- , ° U. " " `J L L 0- ! CO �.__ � Compensatory Mitigation man Appendix B-42 PCS Phosphate Company, Inc. P an U Lands R rorla an January 2012 APPENDIX C SELECTED PHOTOS INCLUDING HISTORIC AND RECENT AERIAL PHOTOS Compensatory Mitigation Plan Appendix C P and U Lands Restoration January 2012 January 1964 aerial view of Bay City Road (SR1002) and east halfof Bay City Farm to left and Peele Road to upper right. Gum Swamp Run system visible just north of slight bend in SR1002. Compare to 1938 photo for changes in apparent fire scarred areas. Compensatory Mitigation Plan Appendix C -2 P and U Lands Restoration January 2012 December 1963 view of most of Phase 3 including the intersection of Rodman Road (vertical on left) with Executive /Jaime Road (horizontal feature to south of agricultural fields). Bay City Farm and Bay City Road (SR1002) visible on right. Compensatory Mitigation Plan Appendix C -3 P and U Lands Restoration January 2012 March 2011 aerial view to east with Bay City Road(SR1002) in lower foreground and Small Road on left. The persistent character of the Gum Swamp Run low to moderate energy stream is visible despite construction of interior ditches and timber removal associated with silviculture; prior to any stream or valley restoration activity Compensatory Mitigation Plan Appendix C -4 P and U Lands Restoration January 2012 September 2011 aerial view to southwest with water visible in the Gum Swamp Run headwater valley system in middle right. Hurricane Irene passed through the area a few days before this photo with 12 inches of rainfall recorded at the Bay City rain gauge. Compensatory Mitigation Plan Appendix C -5 P and U Lands Restoration January 2012 November 2011 aerial view to south with Small Road in lower foreground, Bay City No. 4 to south beyond Small Road, and Bay City Road (SR1002) on right. Gum Swamp Run valley and low to moderate energy stream segment evident in low to middle right between Bay City No. 4 and Small Road. 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