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19970326 Ver 1_COMPLETE FILE_19970414
Stai:O Of . vOrth Depa. Lment o' arolil- Env? and Natural Resources Division of Water Quality e?? 11111111111111110 w2k James B. Hunt, Jr., Governor NC ENR Wayne McDevitt, Secretary NORTH CAROLINA DEPARTMENT OF A. Preston Howard, Jr., P.E., Director ENVIRONMENT AND NATURAL RESOURCES March 3, 1999 Wake County DWQ Project # 970326 APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Sirs: This 401 Water Quality Certification Approval replaces the Approval issued February 1, 1999. You have our approval, in accordance with the attached conditions and those listed below, to place till material in an additional 949 feet of streams for the purpose of commercial development at Arbor Investments, Inc. at Cary Parkway and Maynard Road in Cary, as you described in your application dated January 12, 1999. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Numbers 3103 and 3108. These certifications allow you to use Nationwide Permit Numbers 14 and 26 when the Corps of Engineers issues them. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and Water Supply Water shed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Certification. This approval is only valid for the purpose and design that you described in your application except as modified below. If you change your project, you must notify us and you may be required to send us a new application.. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions listed below: 1. Deed notifications or similar mechanisms shall be placed on all lots with remaining jurisdictional wetlands and waters or areas within 50 feet of all streams and ponds to notify the state in order to assure compliance for future wetland and/or water impact. These mechanisms shall be put in place within 30 days of the date of this letter or the issuance of the 404 Permit (whichever is later). 2. An additional condition is that a final, written stormwater plan which meets an 85% TSS removal standard must be approved by DWQ, each, for the industrial site and for the shopping center site. Additionally, each plan must receive approval from DWQ before wetland (or stream) impacts can occur at its corresponding site. Also, each stormwater treatment facility, as indicated in the above approved plan(s), shall be constructed and operational and all aspects of the corresponding stormwater management plan shall be implemented before any structure is occupied that is served by that stormwater treatment facility. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611- 7447. This certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone John Dorsey at 919-733-1786. Attachment cc: Wilmington District Corps of Engineers Corps of Engineers Raleigh Field Office Raleigh DWQ Regional Office John Dorsey Central Files Nelson Paul, ECPS Inc cr. I . D ivision of Water Quality • ikon-Discharge Branch 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX It 733-9959 An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper DENT M: ACTION ID: Nationwide Permit Requested (Provide Nationwide Permit #): JOINT FORM FOR Nationwide permits that require notification to the Corps of Engineers Nationwide permits that require application for Section 401 certification WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY P.O. Box 1890 Wilmington, NC 28402-1890 ATTN: CESAW-CO-E Telephone (919) 251-4511 WATER QUALITY PLANNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES P.O. Box 29535 Raleigh, NC 27626-0535 ATTN: MR. JOHN DORNEY Telephone (919) 733-5083 ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS. SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: Arbor Investments. L.L.C. 2. Owners Address: 1005 High House Road, Cary, North Carolina 27513 3. Owners Phone Number (Home): (919) 481-1212 (Work): (919) 481-3000 4. If Applicable: Agent's name or responsible corporate official, address, phone number. ECPS, Inc., C/0 Nelson G. Paul 2216 Dobbin Place Raleigh, North Carolina 27604 919) 231-0636 5. Location of work (MUST ATTACH MAP). County: Wake Nearest Town or City: Cary Specific Location (Include road numbers, landmarks, etc.): (see attached) 6. Name of Closest Stream/River. Coles Branch 7. River Basin: Neuse River/Crabtree Creek S. Is this project located in a watershed classified as Trout, SA, HQW, ORW, w3 1, or -n%; II? YES [ ] NO k] 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO [X] If yes, explain. (not applicable) 10. Estimated total number of acres of waters of the U.S., including wetlands, located on project site: approximately 1 to 2 acres 11. Number of acres of waters of the U.S., including wetlands, impacted by the proposed project: Filled: (see attached table) Drained: Flooded: Excavated: Total Impacted: 12. Description of proposed work (Attach PLANS-8 1/2" X 11" drawings only): (see attached project plans) 13. Purpose of proposed work: (see attached) 14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures taken to minimize wetland impacts. (see attached) 15. You are required to contact the U.S. Fish, and Wildlife Service (USFWS) and/or National Marine Fisheries Service (NMFS) regarding the presence or any Federally listed or proposed for listing endangered or threatened spegies or critical habitat in the permit area that may be affected by the proposed project Have you done so? YES ("I NO [ ] RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS. 16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties in the permit area which may be affected by the proposed project? Have you done so? YES [K ] NO [ ] RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. 17. Additional information required by DEM: A. Wetland delineation map showing all wetlands, streams, and lakes on the property. B. If available, representative photograph of wetlands to be impacted by project. C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line. D. If a stormwater management plan is required for this project, attach copy. E. What is land use of surrounding property? mixed residential and undeveloped F. If applicable, what is proposed method of sewage disposal? (not applicable) /IIL/5'?r A M AA 4'rJ aK& 4,4* 4T V1Ol?,?yQ.,o? ??GM/? EM9W?DNAAENTi4L COAGT(ALTiQNTS.Q/IfOPEfGNTSf?i CIAL/STS ARBOR INVESTMENTS, L.L.C. COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION (Question/Answer from Joint Application Form) 5. The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property in the attached documentation). 11. The projected impacts of the Project will only involve "Waters or the United States" (herein afterwards referred to as "Waters") in the upper limits of unnamed streams. No wetlands are anticipated to be impacted by the proposed project. The impacts to Waters are described in Table 1 of the attached documentation. 12. (Please review the attached documentation.) 13. The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those typically provided by private commercial developers to meet the needs of private citizens and private businesses. 14. No wetlands are to be impacted by the proposed Project. Page - 1 of 1 1 of 3 TABLE 12/2/98 ARBOR INVESTMENTS, L.L.C. SUMMARY OF PROJECT IMPACTS NATIONWIDE PERMIT 14 STREAM IMPACTS (PERMITTED) PROJECT SEGMENT: JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 1 4 175 700 2 4 185 740 TOTALS 8 360 1440 (ACRES) 0.033 PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIK ANTENNAE 3 2 125 250 4 2 180 360 TOTALS 4 305 610 (ACRES) 0.014 PROJECT SEGMENT: RESIDENTIAL DEVELOPMENT SOUTH OF COLES BRANCH 5 5.5 180 990 6 1 180 180 TOTALS 6.5 360 1170 (ACRES) 0.027 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE 7 4 180 720 8 1.2 180 216 TOTALS 5.2 360 936 (ACRES) 0.021 PREVIOUS GRAND TOTALS 23.7 1385 4156 (ACRES) 0.095 2 of 3 TABLE 12/2/98 ARBOR INVESTMENTS, L.L.C. SUMMARY OF PROJECT IMPACTS NATIONWIDE PERMIT 26 STREAM IMPACTS (PERMITTED) PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AV ENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 9 4 340 1360 10 1.2 160 192 TOTALS 5.2 500 1552 (ACRES) 0.036 PREVIOUS GRAND TOTALS: 5.2 500 1552 (ACRES) 0.036 3 of 3 TABLE 12/2/98 ARBOR INVESTMENTS, L.L.C. SUMMARY OF PROJECT IMPACTS NATIONWIDE PERMIT 26 STREAM IMPACTS (PROPOSED) PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIK ANTENNAE 11 2 293 586 12 2 421 842 TOTALS 4 714 1428 (ACRES) 0.033 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKS6N AVENUE 13 4 235 940 TOTALS 4 235 940 (ACRES) 0.022 ADDITIONAL SUBTOTAL 2368 (ACRES) 0.054 TOTAL PROJECT (PREVIOUS AND PROPOSED) 8076 (ACRES) 0.185 M 305 7`1 o , lam' ° ? ?? ,) I ???• his 350 1 ? r ` C SOURCE: CARY, NC 7-112 MINUTE QUAD EA h9VW IEVT.4L CONSUL r"FS .?NO rffF "" f? og dve f :-A:n s?c?a?isrs ?- 8j? ri ??•• y ?•/ end \)? 0 N as/6 • 11 r •.l 0 w 11 ,, -FIGURE 1 SITE LOCATION MAP ARBOR INVESTMENTS, L.L.C. PROPERTY CARY, NORTH CAROLINA 71 7V J _ -- _ -+! t 37g,=' 46 t ? ) I / - 1 I ^ O (NOT TO SCALE) FIGURE 2 INDEX MAP ARBOR INVESTMENTS, L.L.C. COAMAL ra/vrs PROPERTY ,moo I,-Ks?Mir "rsnaffAwA"cF S.cf-clwlsrs R"E;?„r ;-"w CARY, NORTH CAROLINA . o • r .r- •''° • V ? • ?t 1 i • j 1 ? 0 i . 1 , • 1 1 f ! 1 16 30' R/W EASEMNET' 0 COLONIAL PIPELINE 1 009 . `N 4107 SCALE: V - 50' Am- ENY/f70NMENT.?L COMSULT. WN A*VO /3?14A!/T rr?soo?oaovsucF aatE?c wvc r?sei Sf?CL4L/STS p?.yrsr-oars FIGURE 14 AREA 13 COMMERCIAL RETAIL PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA 1.3 17?! ?- -x Js }'i ,\1• y 1' `? ?? ? J li , , ? ? 370 -j??? ? ?' - 3.27 , ?TQPD'? .'? -oc ALL 2.22 AC. ? I 1i I 1 /I I % ail \\` ? ? w. j ? ? r rnruxa««n r _, w 1 r POND r SCALE: 1" ¦ 100' FIGURE 16 AREA 11 INDUSTRIAL DEVELOPMENT ENY/AONMENTstL PROJECT CONSUL T.4NTS sINO F?l?HM/T ra?c ouunrvf tiu-E ARBOR INVESTMENTS, L.L.C. SF3?"C(4L/STS pi.o/%s? oc?6 «? CARY, NORTH CAROLINA 49 \ 18 AC: o NZ _0 -?---' 3.27 ." __ ------- ,,?; ?* ?? \• TQPO - - \ WETLANDS ; l \ OC ? ,. [ALL-----? TOPO SON o - -?AER / 72 ----- --r SCALE: t" a 100' FIGURE 16 AREA 12 INDUSTRIAL DEVELOPMENT ENY/f70NMENT.4L PROJECT CONSUL T.4NTS .awo /J4l F/fJ; NC 11601 fHM/T 1"6O°"'?°?E ARBOR INVESTMENTS, L.L.C. S/?C/?L/.sTJt' /71/9/171-06JF -?'M? -ro^CARY, NORTH CAROLINA December 2, 1998 Mr. John Domey State of North Carolina, DEHNR Division of Water Quality, Environmental Sciences Branch 4401 Reedy Creek Road Raleigh, North Carolina 27607 Subject: Arbor Investments, L.L.C. Property, Cary, North Carolina Previous DWQ Project # 970326 Nationwide Permits 14 & 26 Dear Mr. Domey, Reference our meeting at your office on November 11, 1998. Also present at this meeting was Randy Smith of Preston Development Company; Bernie Garrett, Sam Ravenel and Tony Withers of Withers & Ravenel, project engineers; and Todd St. John of your staff. Our purpose was to continue our on-going discussions regarding the terms and conditions relative to completing the permitting the above-mentioned project. In summary, the subject project was partially authorized by your office on July 17, 1997. Because the majority of stream impacts were to intermittent streams having relatively low biological productivity, the stream mitigation plan submitted with the application was determined to not be required. Additionally, subsequent discussions have determined the project is "vested" in regards to the Neuse River Buffer Rules and said rules are not applicable. The purpose of this most recent meeting was for the engineers to discuss specific plans for meeting 85% reduction in total solids for stormwater discharge. Said reduction has been indicated as a requirement for 401 Certification approval. Attached are the conceptual plans for meeting the stormwater requirement. The plan entitled "Preston East Industrial Park, Cary, NC" shows the overall stormwater management plan for parcels 1 through 16 adjacent to Tower Court and James Jackson Avenue. A second drawing entitled "Preston East Planning" denotes the conceptual plan for the shopping center parcel located in the southeastern comer of the intersection of Cary Parkway and James Jackson Avenue. The stormwater detention basins proposed in these plans should address the requirements of your office necessary for 401 Certification. The construction of these basins will impact approximately 2370 square feet or 0.054 acre of intermittent stream channel having relatively low biological productivity. Total project impacts are approximately 8080 square feet or 0.185 acre. A table providing a summary of the project impacts is attached. ENY!/40NAIENTi4L CONSULT?tNl:sslNO/?L?f7AI/TSPL°"CL4L/ST'.1' PP1600BB/NPY.4CE. /7.gLF/GfiG NC ?7601 /919/P91-I/09 npau/?/unoc»in l9YY1910NWClYfXL L'Q?lWR TANlS.tAtlPL?A1N'154?'if[RC7S Mr. John Domey, Division of Water Quality, re: Arbor Investments, L.L.C., Cary, NC It is hoped this additional material will provide the necessary information required to act favorably on this request. Should you have any questions regarding this or any other related matter, please feel free to contact me at (919) 231-4409. Cordially yours, p? ECPS, Inc. Nelson G. Paul Manager/Consultant ENYlf?QAO?fE/YlJfL CON.SULTifNTS.IA?OIEI?A/?SF?'CL.QL/SlS 2t)?600A990WAV-.4CE /44V4FAVIAZ NC ^7NOW 1979/291-II09 ?p??/?/??o-cnm December 2, 1998 Mr. Eric Alsmeyer Area Coordinator Raleigh Regulatory Office US Army Corps of Engineers 6508 Falls of the Neuse Road, Suite 120 Raleigh, North Carolina 27615 Subject: Arbor Investments, L.L.C. Property, Cary, North Carolina Previous Action ID(s) 199700681 and 199700853 Nationwide Permits 14 & 26 Dear Mr. Alsmeyer, This letter is to request concurrence with an amendment to permits issued previously for the above- mentioned project. Based on discussions with the North Carolina Division of Water Quality, it has been determined stormwater detention basins are required meet water quality standards for State 401 certification. The construction of these basins will result in additional impacts of approximately 2370 square feet or 0.054 acre. These impacts will be to intermittent stream channels of relatively low biological productivity. Total project impacts (including previously-permitted impacts associated with Nationwide Permit 14 road crossings) are approximately 8080 square feet or 0.185 acre. A table providing a summary of the project impacts is attached, as are figures showing the proposed stormwater detention basin areas. Please provide us with written concurrence regarding this request. Should you have any questions regarding this or any other related matter, please feel free to contact me at (919) 231-4409. Cordially yours, 4'4? A • \ ECPS, Inc. Nelson G. Paul Manager/Consultant U.S. ARMY CORPS OF ENGINEERS Wilmington District Action ID: 199700681 & 199700853 County: Wake GENERAL PERMIT REGIONAL AND NATIONWIDE VERIFICATION Property owner: Arbor Investments, L.L.C. Address: 1005 High House Road Cary, NC 27513 Telephone: 919-481-1212 ent : ECPS, Inc. C/O: Nelson G. Paul Address: 2216 Dobbin Place Raleigh, NC 27604 Telephone: 919-231-0636 Size and Location of Property (Waterbodv, HicThwav name/number, town, etc.): The Property is approximately 120 acres in size and is located 0.25 mile south of SR 54, between the proposed Cary Parkway and SR 1415 (Maynard Rd.), in the Town of Cary, Wake County, North Carolina. The site is located adjacent to Coles branch, above the headwaters of Crabtree creek. Description of Activity: Nationwide Permit 14 authorizes 0.036 acre of fill associated with crossing tributaries with roads necessary for access to the property. Nationwide Permit 26 authorizes 0.10 acre of fill necessary for the construction of a shopping center on the site. _X_Section 404 (Clean Water Act, 33 USC 1344) only. Section 10 (River and Harbor Act of 1899) only. Section 404 and Section 10. X Nationwide Permit Mmiber 14 & 26 Any violation of the conditions of the Regional General or Nationwide Permit referenced above may subject the pezmittee to a stop work order, a restoration order, and or appropriate legal action. This Department of the Army Regional General / Nationwide Permit verification does not relieve the permittee of the responsibility to obtain any other required Federal, State, or local approvals/permits. The pernittee may need to contact appropriate State and local agencies before beginning work. If you have any questions regarding the Corps of Engineers regulatory program, please contact Eric Alsmeyer at telephone number (919) 876- 8441, extension 26. Regulatory Project Manager Signature 9; ?: :- C . Date 11 July, 1997 Expiration 11 July, 1999 SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORM, ETC., MUST BE ATTACK TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAILABLE. CF: ECPS, Inc. -rc'W' d, Cup y Feb 15 99 04:26p Nelson G. Paul 231-4409 ...... ........... ........ ......._..............._..................... .................. ............ .................. ........... .................. ............. .,............... J FNMg1lINMFA'rW CUNSULT?t/?7S,QNL7/ gAf/TSP G"/f1L/ST'S' 2F16L70HBYN/?lC dC? /;d LE/CH 'Ve -vzsv f 19f 297 4%QS7 n?aa/?/rma. ?m February 15, 1999 Mr, Todd St. John Division of Water Quality P.O. Box 29535 r Raleigh, North Carolina 27626-0535 Subject: Arbor Investments, LLC DWQ Project # 970326 Dear Mr St John P•2 [e#e,d' wpP(1"" I ktkell re WtaVA'- I S"f? 1a This letter will confirm our telephone conversation this morning regarding the above-mentioned project. Our discussion primarily pertained to the tlming of the development authorized by the 401 Certification issued by DWQ on February 1, 1999. The project is being developed in two large segments. These segments are the Industrial park and the shopping center. The industrial park is a subdivision and the shopping center will be developed as a single parcel. At this time, the owners have instructed the engineers to proceed with the development of a stormwater plan for the industrial park as specified in Condition Number 2 of the 401 Certification. This will be submitted to your office for review in the near future. Additional planning must be undertaken prior to the development of a stormwater plan for the shopping center segment of the property- Condition Number 2 specifies the following: "2. An additional condition is that a final, written stormwater plan which meets an 85% TSS removal standard must be approved by DWQ before wetland (or stream) impacts occur. Also, within 5 months of receipt of this fetter, the stormwater treatment facilities shall be constructed and operational and the stormwater management plan be Implemented." Due to the construction sequence of the various segments of the property proposed by the owners, compliance with the timing aspects of this condition Is not possible. The owners would like to request this condition be modified to read P?(01 0 1 °2. An additional condition is that a final, written stormwater plan which meets an 85°/ ' TSS removal standard must be s dde DWQ far:qppwal for the industrial park 44 y .0tv ?r itUS?<<L? 9? ?C? vie S/4ciH?r P . o ?RNs vLrus? 4e, Falk ear X ail,..,/ rse?M) Ir?!(ktcfsccUr ? s 91tt Feb 15 99 04:26p Nelson G. Paul 231-4409 p.3 tNYWONMl VXW 6YlA!SGYTiWTSAN0I?RANTSJ CLQL/STS Mr. Todd St. John, Division of Water Quality, Arbor investments, LLC, DWQ Project# 970326 ore wetland (or stream) i of Also, bulldir'-- n divi lots pr ' e rmwate ent faaliti /? and at and th ormwat m eme plan be Thank you for your favorable consideration of this request. Please feel free to call me at (919) 231-440 you have any questions. ` Cordially yours; a ea?p ECPS, inc. l ? /!t w?1?2 `-?PCey,,,??I.?Li Ta't ??i1?Wp 5'/ 4110-?4P44 ? CC 6G Cl r , 1 Nelson G. Paul General ManagerAand Use Consultant ?O s yrr u?fcta-e 'lire rs sc•?v?cP 6? ?G,r??Si4??v???./?,Z Feb 15 99 04:26p Nelson G. Paul 231-4409 p.l Fax Please deliver immediately to: of: Fax number: Voice number: Todd St. John Division of Water Quality 733-9959 733-1786 Fax received from: Nelson G. Paul of: ECPS, Inc./Nelson G. Paul & Associates Fax number: 231-4409 Voice number: 231-4409 Date: 2/15/99 Time: 4:25:38 PM Number of Pages: 3 Subject: Arbor Investments, LLC Messa,Qe. Todd, please review the attached and call if you have any questions. Nelson Paul State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director F?W'A NC ENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES February 1, 1999 Wake County DWQ Project # 970326 APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Sirs: You have our approval, in accordance with the attached conditions and those listed below, to place fill material in an additional 949 feet of streams for the purpose of commercial development at Arbor Investments, Inc. at Cary Parkway and Maynard Road in Cary, as you described in your application dated January 12, 1999. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Numbers 3103 and 3108. These certifications allow you to use Nationwide Permit Numbers 14 and 26 when the Corps of Engineers issues them. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and Water Supply Water shed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Certification. This approval is only valid for the purpose and design that you described in your application except as modified below. If you change your project, you must notify us and you may be required to send us a new application.. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions listed below. 1. Deed notifications or similar mechanisms shall be placed on all lots with remaining jurisdictional wetlands and waters or areas within 50 feet of all streams and ponds to notify the state in order to assure compliance for future wetland and/or water impact. These mechanisms shall be put in place within 30 days of the date of this letter or the issuance of the 404 Permit (whichever is later). 2. An additional condition is that a final, written stormwater plan which meets an 85% TSS removal standard must be approved by DWQ before wetland (or stream) impacts occur. Also, within 6 months of receipt of this letter, the stormwater treatment facilities shall be constructed and operational and the stormwater management plan be implemented. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611- 7447. This certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733-1786. Fres y, n Howa , Jr. P. . Attachment cc: Wilmington District Corps of Engineers Corps of Engineers Raleigh Field Office Raleigh DWQ Regional Office John Domey Central Files Nelson Paul, ECPS Inc Dennis Murphy, O'Brian/Atkins 970326.Itr Division of Water Quality • Non-Discharge Branch 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer 9 50% recycled/10% post consumer paper A1-1-r f,i ? , Subject: Arbor Investments Date: Wed, 10 Feb 1999 09:24:39 -0600 From: "Todd St. John" <todd_st.john@h2o.enr.state. nc.us> Internal To: John Dorney <john_dorney@h2o.enr.state. nc.us> As you may recall, Nelson Paul just contacted us regarding this project. He requested that we change the language in the 401 Certification to not require final written approval for a stormwater managment plan before the impacts can occur. I just received a call from the engineer, Bernie Garrett (469-3340), during which he told me that they (as a firm) we only requested to provide adequate locations and sizing for the stormwater BMPs, which they did and we approved. He advised me that each BMP will be designed and built by the individual parcel owners. Therefore, as far as he knows there are no final plans yet. If this is the case, it may be reasonable not to require final plans at this time, but we could require final plans as the "watershed" for each parcel begins development and completion and implementation before the first to he served by each storr.,,,vater P.MP i s c,?^structed. If the developer ba!ks at such a ~Mric_ then they should be required to abide by the current 401. In any event, it may be best (ie easiest for me) if we simply require that the developer (and not the parcel owners) to design and obtain -ach BMP and that •..,? ...•n.,4 ?r ._. se-?; !::^.? of time extensiop in :, ;?.:coinpiish this... i would not like to go tr._ ?agii some piece-meal thing again... then we w,,uici require the the plan be built and implemented before the first building served by that BMP is Ocenpied. let me know what you think and i will call the engineer hack... Toad St. John 1---vironmental Engineer 40 ] /Wetlands Unit Todd St. John <todd-st.john@h2o.enr.state.nc.us > loft r? saVI ,i a .t t ?? 11 \1 11.0 1 1 RLJC 28 98 04:10p Nelson G. Paul 231-4409 p.2 AUG-20-1990 1531 FROM WITHERS RAVaIEL TO Z141M- P.01 Wl" ]WRS & RAVENEL, Engineering & ,Surveying, ,Tate. rrl MacKew Drive, Cary N. C. 27511.919146,9-3340,,FAX.9191467-6008 FAX TRANSNQTTAI, TO: < 4 FROM: JOB #: _ T_ h_.... max"7mu R. 1V?lht rr P.X. .Cmxuel A. Amea?, P.E. Jason F, Canf Pf0f, P .P. Loft" G. Wtk P. 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" r r? t ? -.t I 3 ? i t .K f; ?? r 4Sy e, I I I DEM ID: ACTION ID: Nationwide Permit Requested (Provide Nationwide Permit #): JOINT FORM FOR Nationwide permits that require notification to the Corps of Engineers Nationwide permits that require application for Section 401 certification WILMINGTON DISTRICT ENGINEER WATER QUALITY PLANNING CORPS OF ENGINEERS DIVISION OF ENVIRONMENTAL MANAGEMENT DEPARTMENT OF THE ARMY NC DEPARTMENT OF ENVIRONMENT, HEALTH, P.O. Box 1890 AND NATURAL RESOURCES Wilmington, NC 28402-1890 P.O. Box 29535 ATTN: CESAW-CO-E Raleigh, NC 27626-0535 Telephone (919) 251-4511 ATTN: MR. JOHN DORNEY Telephone (919) 733-5083 ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS. SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: Arbor Investments L C 2. Owners Address: 1005 High House Road, Cary, North Carolina 27513 3. Owners Phone Number (Home): _(919) 481-1212 (Work): (919) 481-3000 4. If Applicable: Agent's name or responsible corporate official, address, phone number. ECPS, Inc., C/0 Nelson G. Paul 2216 Dobbin Place Raleigh, North Carolina 27604 (919) 231-0636 5. Location of work (MUST ATTACH MAP). County: Wake Nearest Town or City: Cary Specific Location (Include road numbers, landmarks, etc.): (see attached) 6. Name of Closest Stream/River: Coles Branch 7. River Basin: Neuse River/Crabtree Creek 8. Is this project located in a watershed classified as Trout, SA, HQW, ORW, W3 1, or -NS II? YES [ ] NO [g] 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO (X] If yes, explain. (not applicable) 10. Estimated total number of acres of waters of the U.S., including wetlands, located on project site: aDDroximately 1 to 2 acres _ 11. Number of acres of waters of the U.S., including wetlands, impacted by the proposed project: Filled: (see attached table) Drained: Flooded: Excavated: Total Impacted: 12. Description of proposed work (Attach PLANS-8 1/2" X 11" drawings only): (see attached project plans) ' 13. se of proposed work: (see attached) ?? ' 14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures taken to minimize wetland impacts. ' (see attached) 15. You are required to contact the U.S. Fish, and Wildlife Service (USFWS) and/or National Marine Fisheries Service ' (NMFS) regarding the presence or any Federally listed or proposed for listing endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project. Have you done so? YES [X] NO [ ] RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS. 16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties in the permit area which may be affected by the proposed project? Have you done so? YES [X ] NO [ ] RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. 17. Additional information required by DEM: A. Wetland delineation map showing all wetlands, streams, and lakes on the property. B. If available, representative photograph of wetlands to be impacted by project. C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line. D. If a stormwater management plan is required for this project, attach copy. E. What is land use of surrounding property? mixed residential and undeveloped F. If applicable, what is proposed method of sewage disposal? (not applicable) ENYIK70NMENT.QL CONS!/[T.Q/VTSstNOFL?i9A//TSPlC4lL/SJS1 I ARBOR INVESTMENTS, L.L.C. COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION (Question/Answer from Joint Application Form) 5. The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property in the attached documentation). 11. The projected impacts of the Project will only involve "Waters or the United States" (herein afterwards referred to as "Waters") in the upper limits of unnamed streams. No wetlands are anticipated to be impacted by the proposed project. The impacts to Waters are described in Table 1 of the attached documentation. 12. (Please review the attached documentation.) 13. The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those typically provided by private commercial developers to meet the needs of private citizens and private businesses. 1 14. No wetlands are to be impacted by the proposed Project. Page - 1 of 1 ENVIHON.1/ENTAL CONSULT.LVTSRNOFIRANTSFLC4f[/SISTABLE OF CONTENTS JOINT APPLICATION FORM ...................................................................... Page 1.0 INTRODUCTION AND PROJECT PURPOSE .............................. 2 2.0 NOTIFICATION REQUIREMENTS 2.1 Location of Work and Property Description ......................... 4 2.2 Description of Work ................................................................ 4 3.0 DISCUSSION OF ALTERNATIVES TO THE PROPOSAL........ 8 4.0 PLAN TO MITIGATE FOR STREAM IMPACTS 4.1 Stream Characterization ......................................................... 10 4.2 Stream Mitigation Site Description ........................................ 10 4.3 Stream Mitigation Concept ..................................................... 10 4.3 Stream Mitigation Site Modifications ...................................... 11 5.0 STREAM MITIGATION REMEDIATION AND SECURITY 5.1 Mitigation Monitoring .............................................................. 12 5.2 Mitigation Area Remediation ................................................. 12 5.3 Mitigation Security .................................................................. 13 TABLES Table 1 - Overall Project Impacts ................................................................ 6 APPENDIX 1A ................................................................................................... Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property Figure 2 - Index Map, Arbor Investments, L.L.C. Property Figure 3 - Area 1 Detail, James Jackson Avenue Extension Figure 4 - Area 2 Detail, James Jackson Avenue Extension Figure 5 - Areas 3 & 4, Industrial Development Project Figure 6 - Area 5, Residential Development Project Figure 7 - Area 6, Residential Development Project Figure 8 - Areas 7 & 9, Commercial Retail Project Figure 9 - Areas 8 & 10, Commercial Retail Project Figure 10 - Typical Cross Sections, James Jackson Avenue Extension Figure 11 - Site Map, Stream Mitigation Project Figure 12 - Construction Features, Stream Mitigation Project Figure 13 - Construction Features, Stream Mitigation Project Correspondence with Withers & Ravenel Regarding Stream Channel Design Present Agency Correspondence Previous Agency Correspondence ECPS Project No. 0006-001 Page - 1 1 EN?'lROAEIr6ENTAL CO/VSULTitN7S??A/OPFRAI/lSPFCLr![/S7S 1.0 INTRODUCTION AND PROJECT PURPOSE ' The purpose of this document is to propose a plan for compensatory mitigation of stream impacts associated with the development of the Arbor Investments, L.L.C. property located in Cary, North Carolina (herein afterwards referred to as ' the "Property"). ' The proximity of the Town of Cary to major employment, transportation, recreation and educational facilities makes it one of the fastest growing cities in the State of North Carolina. The Town of Cary is dependent on private ' development initiatives to meet the residential, retail and recreational demands of the growing population. The Town of Cary implements strict zoning restrictions that control the engineering and aesthetics of this growth in a ' planned and thoughtful manner. Arbor Investments, L.L.C., a private development initiative, is proposing to meet some of the demand pressures of the growing residential and commercial sectors by the developing the Property ' with a diversity of uses, including light industrial, multi-family residential, single- family residential and commercial uses. ' The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those ' typically provided by private commercial developers to meet the needs of private citizens and private businesses. ' The intention of the stream mitigation outlined by this plan is to construct a substitute stream channel that will compensate for the stream channels segments that will be altered by project activities conducted under Nationwide ' Permit (NWP) 26. Regional conditions imposed by the U.S. Army Corps of Engineers, Wilmington District Regulatory Branch, dated May 15, 1997, require applicants provide notification to the Wilmington District Engineer and receive 1 written approval prior to performing work that would impact more than 150 feet of a stream. Notification will include the location of work, a description of work, a ' discussion of alternatives to working in the stream and why alternatives were not selected, and a plan to mitigate for all avoidable adverse impacts to more than 150 linear feet of the stream. ECPS Project No. 0006-001 Page - 2 r r EM9ROMIIfENT.dL CONSULTiQMTS.ZYOPFRANTSF! LYAL/STS 1 This plan for stream mitigation is to construct 350 of new stream channel for the 500 feet of stream channel proposed to be altered as required by the federal regional guidelines that pertain to NWP 26. Other impacts described in this stream mitigation plan do not require mitigation but are provided for the sake of completeness. Adverse impacts of the other impacts of the project (NWP 14 activities) are considered to be no more than minimal and that the aquatic environment will be protected. rJ ( I This plan is to provide information for evaluation of the proposed stream mitigation by the natural resource agencies and is to also serve as a guidance document for future detailed engineering, construction and monitoring of the created stream segment. ECPS Project No. 0006-001 Page - 3 ENMHOAGIENTAL CONS!/LTiLYTSitNOPFlD1I/TSPLCL4L/STS 2.0 NOTIFICATION REQUIREMENTS 2.1 Location of Work and Property Description ¦ The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, I North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property). ' The Property is typical of properties in the Piedmont geographical province. The Property is moderately eroded and dissected with a significant drainage system. I Vegetation consists of mature hardwoods, except in the central portion of the property, north of Coles Branch, and in portions of the floodplain south of Coles Branch. Here the Property is vegetated with young pines and mixed hardwoods. ' The WKIX antennae site is grassed. Overall, development of the Property will entail relatively minor environmental impacts. ' Coles Branch is a significant environmental feature of the Property. Coles Branch traverses the Property from the east to west and consists of a narrow perennial stream and flood plain. The Town of Cary restricts development ' within floodplains and no construction or development activities (with the exception of this proposed stream mitigation) are proposed by Arbor Investments, L.L.C. within the Coles Branch floodplain. I The waters and wetlands of the site have been delineated and surveyed. The waters and wetland locations have been verified by the U.S. Army Corps of ' Engineers. Wetlands and waters on the Property account for an insignificant amount of the total land area. The project avoids wetland impacts entirely. ' 2.2 Description of Work I The project will involve the construction of the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. The impacts of the ' project are to "Waters of the United States" primarily from several minor road crossings that will access upland areas located on either side of several intermittent tributaries of Coles Branch. Within the perimeter of the commercial ECPS Project No. 0006-001 Page - 4 ' ENM7/40N//ENTAL CONSGYT.LYT3'.LVOFFRA//TSPFCLAL/S7S development, portions of the intermittent tributaries will be displaced for parking ' lot construction. The location of the project impacts relative to the Property are illustrated in ' Figure 2. More detail of the proposed development at each location is illustrated in Figures 3 through 10. A summary of the project impacts are indicated in Table 1. It is anticipated that approximately 5708 square feet (0.131 acres) of ' waters will be altered by the proposed project activities. As required under NWP 26 regional conditions, of the 500 feet of stream channel proposed to be altered, 350 feet of new stream channel is proposed to be constructed. L 1 0 ECPS Project No. 0006-001 Page - 5 EM7WOAGIENTi4L CONSULT.QN73'sWOPFgAI/TSPL6Yt[/STS TABLE 1- OVERALL PR OJECT IMPACT S NATIONWIDE PERMIT 14 STRE AM IMPACTS PROJECT SEGMENT: JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 1 4 175 700 2 4 185 740 TOTALS 8 360 1440 (ACRES) 0.033 PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIX ANTENNAE 3 2 125 250 4 2 180 360 TOTALS 4 305 610 (ACRES) 0.014 PROJECT SEGMENT: RESIDENTIAL DEVELOPMENT SOUTH OF COLES BRANCH 5 5.5 180 990 6 1.0 180 180 TOTALS 6.5 360 1170 (ACRES) 0.027 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE 7 4 180 720 8 1.2 180 216 TOTALS 5.2 360 936 (ACRES) 0.021 GRAND TOTALS: 23.7 4156 (ACRES) 0.095 ECPS Project No. 0006-001 Page - 6 i i i EN?%AOA91/ENTiQL CPNSULT.4NTS.Q/YOfl?gA//TSJ?-CI?L/S7T TABLE 1- OVERALL PROJECT I MPACTS (C ONT.) NATIONWIDE PERMIT 26 STREAM IMPACTS PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 9 4 340 1360 10 1.2 160 192 TOTALS 500 1552 (ACRES) 0.036 TOTAL AREA IMPACTS (NWP 14 & NWP 26) 5708 (ACRES) 0.131 ECPS Project No. 0006-001 Page - 7 I [l ENJ9/70NMENTi4L CO/YSULT.QNTS.QNOPLRIHTSPFCLrIL/STS 3.0 DISCUSSION OF ALTERNATIVES TO THE PROPOSAL C The selection of this Property consisted of a process involving the evaluation and consideration of various engineering, economic and environmental factors. The principal controlling factors considered in proposing the utilization of the Property for the proposed project activities are as follows: Ownership. The Property is under the ownership of Arbor Investments, L.L.C. The Property was purchased for development purposes. The proposed impacts are the minimal necessary for economical development of the Property in accordance with the owner's investment-backed expectations. Location. The Property is located within the Town of Cary adjacent to developed tracts. The Property is proposed to be traversed by major transportation arteries. A major thoroughfare (Cary Parkway extension) has been proposed and is under consideration for construction that will border the western portion of the Property. The Property itself will be traversed by James Jackson Avenue (included as a portion of the proposed development for the Property in this application) which will connect the proposed Cary Parkway extension with North Maynard Road. Each of the public thoroughfares mentioned are part of the approved thoroughfare plan for the Town of Cary, which was approved by the Town and the NC Department of Transportation. Availability of Public Utilities. Water, sewer and natural gas are available at the Property. Previous public investment was made in the installation of these services in logical anticipation of future site development. ' Since the stream impacts proposed under NWP 26 at the commercial retail project south of James Jackson Avenue are the only stream impacts being mitigated for in this plan, this alternatives discussion will focus on the stream ' impacts surrounding this aspect of the project. The stream impacts of the commercial retail project consist primarily of fills for parking lot construction. ' Alternative parking lot configurations at the commercial retail project have been considered and where feasible, modifications have been made to the proposed project design. The use of bridges for the parking lots was judged to be ' impractical and economically unfeasible. The use of retaining walls to contain ECPS Project No. 0006-001 Page - 8 1 ' ENDf1/70A9NENTAL CONSULTiQNTS.QAl7PF/4AdTSFi LYefL/STS i fl 11 parking lot side-slope fills was judged to create a safety issue, in addition to being impractical and economically unfeasible for both initial construction and long-term maintenance. The "no-build" alternative was also considered and rejected as it would not meet the project purpose. Additionally, the "no-build" alternative would not be in the public interest because the location of the project has the potential of serving a large population base with needed services (i.e. food, pharmacy, offices, etc.). There are no alternative sites for the commercial retail project that have the ownership, zoning, location or the availability of public services that would meet the project purpose and have significantly less impacts. The design of the proposed commercial retail project minimizes water and wetland impacts to the maximum extent possible while still meeting the project purpose. The following section describes the measures that will be employed in providing compensatory mitigation for the intermittent stream impacts. ECPS Project No. 0006-001 Page - 9 1 1 ENM/70NA?NTiK CO/YSULTiQ/YIS.QNOPFiSIAdTSPFL?4QL/S1S 4.0 PLAN TO MITIGATE FOR STREAM IMPACTS 4.1 Stream Characterization Intermittent streams on the Property are generally characterized by shallow, narrow, eroded channels approximately three (3) feet deep, with a base of approximately two (2) feet and a top width of approximately four (4) feet. The stream channels are relatively straight in plan view and have occasional riffle and pool sequences within the stream beds. Some stream segments appeared to be relic agricultural ditches due to their extreme linear nature and lack of any definable riffle and pool sections. The stream banks are typically stabilized by a growth of mixed hardwoods and pines that vary in age from shrubs and saplings to mature trees. 4.2 Stream Mitigation Site Description The stream mitigation site (see Figure 11, Site Map, Stream Mitigation Project) is located within the floodplain of Coles Branch. The site is vegetated with shrub and sapling species that include mixed hardwoods and pines. Soils are alluvial sediment deposits from Coles Branch. 4.3 Stream Mitigation Concept The stream mitigation concept will involve the construction of an intermittent stream channel supplied with stormwater during rainfall events from the adjacent commercial retail project. The constructed stream channel will roughly parallel Coles Branch, in order to prevent the discharge of sediment into the constructed stream during high-flow events. The project construction sequence will minimize disturbance to vegetation as much as possible in gaining access to the site by hand clearing or utilizing a mower to clear the proposed stream corridor. Material from the channel excavation will be widely distributed to allow secondary growth of the indigenous vegetation from the existing roots and to reduce the possibility of the spoil material eroding back into the constructed stream channel. Rock material from offsite consisting of a mixture of rock sizes (2-18 inch) will be used to construct the riffle and pool sequences in accordance with state ECPS Project No. 0006-001 Page - 10 0 1 ENIZI40AG1/ENTAC CONSULT.Q/Y73'?/YPfF/4A//TS/?LYAL/S7S guidelines. The stream development will be monitored after completion for vegetation growth and sedimentation. 4.4 Stream Mitigation Site Modifications The proposed site modifications will begin with a sediment basin at the upper end of the proposed stream channel construction. The sediment basin is to be installed as part of the site clearing operations for the proposed retail center. The sediment basin will be designed to remain after construction of the proposed retail center is completed and its discharge will form the upper-most point of the proposed stream mitigation. Stormwater from the buildings and parking areas of the westernmost portion of the shopping center will provide intermittent flow to the constructed stream. The drainage area is calculated to be 3.2 acres. Runoff calculations have been prepared by Withers & Ravenel and are included in the Appendix of this report. The proposed site modifications (see Figures 12 and 13) for the constructed stream channel will include a construction sequence that will minimize impacts to existing vegetation and unnecessary disruption to soils. This will be accomplished by either hand clearing existing vegetation or utilizing a mower, as site conditions allow, in the mitigation area. Clearing of the vegetation will involve cutting the existing plants to the roots but leaving the roots intact. Cuttings will be piled in portions of the cleared area away from the proposed stream route. Once the stream channel corridor is cleared of vegetation, the site will be accessed with rubber-tired equipment, such as a backhoe or a bobcat. The equipment will excavate the channel in accordance with the sizes indicated in Figure 13. Spoil from the excavation will be placed in alternate piles on either side of the channel excavation and leveled as much as possible with the equipment bucket. Every attempt will be made to spread the spoil from the excavation thin enough so the indigenous vegetation will redevelop. Following the excavation, the pool and riffle breaks will be installed in accordance with the specifications outlined in Figure 13. The material utilized to form the pool and riffle steps will be brought into the site utilizing rubber-tired equipment and positioned by hand. ECPS Project No. 0006-001 Page - 11 1 ENF/gONA/ENTsfL CP/YSULT.QNIS.QNOFf/7AdTSfLC41L/SlS 5.0 MITIGATION REMEDIATION AND SECURITY 5.1 Mitigation Monitoring The constructed stream segment will be monitored upon completion for a period of three years for vegetation establishment (bank stabilization) and sedimentation levels. Regular, inspections of the site will be conducted by a consultant hired by Arbor Investments, L.L.C. on a yearly basis and a brief letter will be provided to the U.S. Army Corps of Engineers regarding the inspection observations. The inspection letter will provide information regarding the height of the previously-disturbed vegetation and will provide information regarding the level of sedimentation or down-cutting taking place in the constructed stream. Any other information deemed important by the consultant will be provided in this letter also. 5.2 Mitigation Area Remediation Mitigation monitoring letters described in Section 5.1 will include suggested remedial measures if the inspection indicates such measures may be required. If it is noted the stream mitigation is performing unsatisfactorily, the consultant and the Arbor Investments, L.L.C. managers will provide a best professional judgment regarding the reason(s) for the unsatisfactory performance. The consultant and the Arbor Investments, L.L.C. managers may also suggest remedial measures to correct the deficiency in the mitigation area. Remedial measures will be evaluated in consideration of the performance standards outlined in Section 5.1. Where the mitigation monitoring reports identify no deficiencies in the mitigation area performance and include no recommendations for remedial measures, no response from the principal state and federal wetland resource authorities within 30 days will be considered acceptance of the site progress for the pertinent monitoring interval. In the event the mitigation monitoring report includes a recommendation for remedial measures, the principal state and federal wetland resource authorities will provide concurrence or an independent recommendation within 30 days of submittal of the mitigation monitoring report. ECPS Project No. 0006-001 Page - 12 1 1 1 ENNHUNMENT.4L CONSULTsLYTSsLVOPI`HM/TSPEC/ftL/S1S 5.3 Mitigation Security The mitigation site is currently owned by Arbor Investments, L.L.C.. Should the surrounding properties be sold in the future, Arbor Investments, L.L.C. will retain a maintenance easement on the site for the duration of the mitigation monitoring period. Arbor Investments, L.L.C. will convey, as part of the property parcel, the stream mitigation and the buffer zone area. At the end of the monitoring period maintenance of this stream mitigation will convey to the buyers. ECPS Project No. 0006-001 Page - 13 L, ENi7HOi101IENliJL CP/YSULTStNTS.Q/VOFf/4A//TSFf4'LQL/S7S APPENDIX 1 ECPS Project No. 0006-001 Page - 14 M 305 \J \ ' 0 l = as • -'- ? .. _ _ .. ~- _ _ -? I l ?o ? ?/ ?I ?? ??\ I \ ^-??f -6 J - Aso x 1 ! i : ?• ::: ?- J r ?? o u ? ? Aso ?? ? ? i ?, /• ?.??? / j I?' ?. ;1`ank o ; ao i M?. i \ C n %? 0 11 ?11 J • . I 00 ?zn SOURCE: CARY, NC 7-1/2 MINUTE QUAD FIGURE 1 SITE LOCATION MAP ENY1I40NA/ENT.QL ARBOR INVESTMENTS, L.L.C. PROPERTY .?NO !-l?i4AI/T azrsooBSwscrcz= CARY, NORTH CAROLINA q..wasyawi..er L?V 17 I=n j I ? ?s ?fi 11 ? n lld? J ., l ?= 11 (NOT TO SCALE) FIGURE 2 INDEX MAP EA?'JY70NA/EM4L ARBOR INVESTMENTS, L.L.C. co?r PROPERTY ?o ?Mrr r.•a.;Y,.? s?cracrsrs rte;. n CARY, NORTH CAROLINA 1 -N' 'v,£TLAN0S > LIMITS \\ \ \ ? ? t?' 1 1 / \ it J / ? r s SILT--- cO \ i t ?' 1 1 O 1cf, .? RS I I Y SILT FEN( E, NOTE: INFORMATION ON THES I M'ORRffiVI I HAS EITHER BEEN COPIED OR INTER RET? I-ETJ FROM MAPS PREPARED BY WITHERS RA ' L OF CARY, NORTH CAROLINA. INFORM' ON PROVIDED IN THIS APPLICATION I) SCHEMATIC IN NATURE AND It GJ T B 17 UTILIZED FOR CONSTRU4*) OTR O.SE ?, 1? r [ " ` \, SCALE: 1" =100• FIGURE 3 AREA 1 DETAIL .F1~Nllow"e-YT.4L JAMES JACKSON ld CONSUL w T.4N73 AVENUE EXTENSION QNL7 'crW"/T n16Or?ma'1c.` AOU-I a wr zAf" ARBOR INVESTMENTS, L.L.C. s?cmLisrs ly»vimm CARY, NORTH CAROLINA u F J 1 I1I` SIL? F?NC Vjj J/, t r.y / cr, i SCALE: 1" = 100' i O z ? r*i r ? O ? EXISTING 48" C?.4p TO BE RE?AJvED - l SILT FENCE / >.?? tom, _ ?? ?? ?.? / ? ? /,• wETLAN0S LIKIITS NOTE: INFORMATION ON THESE DRAWINGS HAS EITHER BEEN COPIED OR INTERPRETED FROM MAPS PREPARED BY WITHERS & RAVENEL OF CARY, NORTH CAROLINA. INFORMATION PROVIDED IN THIS APPLICATION IS SCHEMATIC IN NATURE AND IS NOT TO BE UTILIZED FOR CONSTRUCTION PURPOSES. EM?/i70NAIENTstL COMSM rAfffS Awls f?f7M/T ti/6QU99?WiYAC£ SI:rCLQLIS7N .wcE,ric ?.rc zcoi FIGURE 4 AREA 2 DETAIL JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA 0 C Ll 1 1 % I _ 1 ? \ rte', i . / 1 \ ? ? I 1 1 ( r' I .It 11 1 JA / j ' ? I I of / / - 1 I SCALE: V - 100' EA?/1RONMENT.QL CONSUL MOWN ANO ArMo/T rrrsocenoeurs[.cE Ai4fAgt '( AC FWAW s-creAlluSly FIGURE 5 AREAS 3 & 4 INDUSTRIAL DEVELOPMENT PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA ?• Sri - ?---_t =? ? / - ?I ??' " _ - 1?? 40.61 :NI' Est, '; ' ;Y F?? l - l\\ -v l? SCALE: 1'• = 100• FIGURE 6 AREA 5 RESIDENTIAL DEVELOPMENT E,w,HONMENT,QL PROJECT CONSUL TsLVTS .aNO FLC/QM?T 1r1000B6NYifIC'E ^? rya ARBOR INVESTMENTS L.L.C. CARY, NORTH CAROLINA EXISTING TREES ? ' 330 ?\ . I // 11_x- `,'.' ; .•'yl'n, : /(; . 41 •0 \ ?`? N\ D AREA HOUS 22 SCALE: 1•• = 100• FIGURE 7 AREA 6 RESIDENTIAL DEVELOPMENT CONSUCOMS1L r"rS T`fL PROJECT L TiQNT .d 10 PI?RM/T I11fOOB9AYHACE ARBOR INVESTMENTS L.L.C. s,?ciacisTS ?,?•:1,0L.,i ^+•- CARY, NORTH CAROLINA ,r - - T ' /I ;j '? { \ ``?i } \ 1 /' f1 AC-ES - -_ ? ? 543 Z _? - PIETA p _ d 'ooo_ ? OL 0 , ' - , Ste. I l ,r `` `` 4 - ------ - SCALE: 9° _ 100' FIGURE 8 AREAS 7 & 9 COMMERCIAL RETAIL ENt//Ii70NMENTitL PROJECT CONSUL T.4NT5 .41Y0 ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA -114 4- SCALE: 1" = 100' FIGURE 9 -? Am AREAS 8 & 10 COMMERCIAL RETAIL EAyIRONME*vrw PROJECT CONSUL TsJNTS QNO ArRA//T rr,svoaawRwcE ?? ray ARBOR INVESTMENTS, L.L.C. s?c.?Lisrs?,? CARY, NORTH CAROLINA 1 n 1 PROPOSED ROADWAY /ice f NOTE: INFORMATION REGARDING CULVERTS AND FILL HAS BEEN INTERPRETED FROM A MAP PREPARED BY WITHERS & RAVENEL OF CARY, NORTH CAROLINA. INFORMATION IS SCHEMATIC IN NATURE AND IS NOT TO BE UTILIZED FOR CONSTRUCTION PURPOSES. EARTHEN FILL EXISTING GROUND CONTOURS 48 INCH CULVERT EARTHEN FILL TYPICAL CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 1 (N.T.S.) // EXISTING GROUND 15 INCH CULVERT - CONTOURS TYPICAL CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 2 (N.T.S.) SCALE: (VARIES) ---,VW0NAoV9Vr4L CONSUL TANTS 14011019 F]LLw"/T rlis oaeesewscwc? /WCEAG%L NC IIN" .Sf'l?CLALIS'TS /.wryll/#lf FIGURE 10 TYPICAL CROSS SECTIONS JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA OO 1 1 \ 1 0.1 d f` I ACES RETA 5jooO g, ?00 1 1KC d?P,/vii .. ?r pkwj "SITE r y _ --------------- __ ------ ----------------------- V) (N.T.S.) EAWR&*VA/ENTAL CONSULTANTS ." PEWAiffT "fAr"Uem"Prwce ma"m AV SWIFCMUS7:S pneyrs. as>t/ FIGURE 11 SITE MAP STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA L G J CLEARING LIMITS -, ?., - SPOIL PLACEMENT I- ?17 TOP OF DANK \ CHANNEL +1.36 FEET CLEARING LIMITS J Y Cy z PLAN VIEW OF CONSTRUCTION FEATURES (N.T.S.) (N.T.S.) EAWR&A epVrAt CONSUL T4A/TS AA/O AWEA DBBiYPIACF- RRLEXL( NC PJ6QI S??C/f?/•rJa? /911j?I71,06Ji FIGURE 12 CONSTRUCTION FEATURES STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA 6' (TYPICAL) 3- (TYPICAL) L SEGMENT J _ TOP OF BANK i DAM SEGMENT STREAM MITIGATION PLAN VIEW (N.T.S.) DAM SEGMENT - POOL SEGMENT TOP OF BANK 1S TO 21 FEET EXCAVATION LIMITS 2- (TYPICAL) T (TYPICAL) STREAM MITIGATION PROFILE VIEW (N.T.S.) (N.T.S.) EA/p'/i70/YA/E1rr?4L Y CONSUL rAovsJ AAV RC?M? 11/60069.9YHAL'E ?? ? 11SOI Sf1FV1AUST'.S n,?yrs,os?c .a.A 0 V-a.?. FIGURE 13 CONSTRUCTION FEATURES STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA WITHERS & RAVENEL, Engineering & Surveying, Inc. Hamilton E. Withers, l? ' =wr 111 MacKenan Drive, Cary N. C. 27511-9191469-3340-FAX.-9191467-6008 Samuel F. Ravened, P James E. Canfield, P. WRNlRl Lojtee G. Smith, A Jimmy E. Bass, RL Michael E Dickerson, RL June 3, 1997 ' Arbor Investments, LLC ATTN: Randy Smith ' 1005 High House Road Cary, NC 27513 RE: James Jackson Shopping Center Wetlands Mitigation ' Dear Randy: ' This letter is in reference to the design of the channel mitigation to compensate for wetlands impacts at the reference site. ' Our design criteria was based on Nelson Paul's memo to Tony, dated 5/22/97. Summarizing our design parameters, we computed a 2 year peak discharge of 15 CFS for a ' 3.2 acre drainage area assuming a runoff curve number of 95. Our storm distribution was the SCS type 2 rainfall distribution with an antecedent moisture condition 2. ' We designed the channel to just overflow during the two year storm as opposed to the typical design which would put freeboard to prevent overflowing during the specified design storm. The intent here is to have "out of bank" flow and to create a low velocity meandering channel which will improve water quality and mitigate the loss of wetlands. I have assumed a design depth of 1' for three different channel slopes allowing the bottom width to vary with the slope. ' You will want to do a preliminary layout to determine what slope to excavate the channel on. The following will hold true for a depth of 1' and a mannings "n" of .030 and 2.5:1 side slopes: ' DEPTH SLOPE(%) BOTTOM WIDTH (FEET) ' 1.0 0.5 3.1 1.0 1.0 1.8 1.0 2.0 0.8 r ' The channel should be lined with "Enkamat" 7020 to allow stabilization with vegetation. The vegetation should be a wetlands variety to be selected by Nelson Paul. If the depth I am showing does not work out, please notify me and I will generate some additional channel sections for other depths or slopes. ' Sincerely, ' 4amu,-l . Ravenel, PE cc Nelson Paul 1 j: \eng-sur\proj\94\ 105\060397. rs GRAPHICAL PEAK DISCHARGE METHOD Version 2.00 Project J. JACKSON SHOPPING CENTER User: SFR Date: 06-03-97 funty WAKE State: NC Checked: Date: btitle: CHANNEL/WETLANDS MITIGATION Data: Drainage Area 3.2 Acres ' Runoff Curve Number 95 Time of Concentration: 0.10 Hours Rainfall Type II ' Pond and Swamp Area NONE Storm Number 1 2 ---------------------- ------ ?------? Frequency (yrs) 2 10 24-Hr Rainfall (in) 3.6 5.6 Ia/P Ratio 0.03 0.02 Used ? 0.10 ? 0.10 1 Runoff (in) 3.04 5.01 Unit Peak Discharge 1.578 1.578 (cfs/acre/in) Pond and Swamp Factor 1.00 1.00 0.0% Ponds Used Peak Discharge (cfs) 15 25 1 L I Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. Right Side Slope. Manning's n...... Channel Slope.... Depth............ Discharge........ Computed Results: Bottom Width.... Velocity......... Flow Area........ Flow Top Width... Wetted Perimeter. Critical Depth... Critical Slope... Froude Number.... 2.50:1 (H:V) 2.50:1 (H:V) 0-.030 0.0100 ft/ft 1.00 ft 15.00 cfs 1.77 ft 3.51 fps 4.27 sf 6.77 ft 7.16 ft 0.88 ft 0.0170 ft/ft 0.78 (flow is Subcritical; ' Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. 2.50:1 (H:V) Right Side Slope. 2.50:1 (H:V) Manning's n...... 0.030 Channel Slope.... 0.0200 ft/ft Depth............ 1.00 ft Discharge........ 15.00 cfs Computed Results: Bottom Width.... 0.77 ft Velocity......... 4.59 fps Flow Area........ 3.27 sf Flow Top Width... 5.77 ft Wetted Perimeter. 6.15 ft Critical Depth... 1.03 ft Critical Slope... 0.0171 ft/ft Froude Number.... 1.08 (flow is Supercritical) Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. 2.50:1 (H:V) Right Side Slope. 2.50:1 (H:V) Manning's n...... 0.030 Channel Slope.... 0.0050 ft/ft Depth............ 1.00 ft Discharge........ 15.00 cfs Computed Results: Bottom Width.... 3.14 ft Velocity......... 2.66 fps Flow Area........ 5.64 sf Flow Top Width... 8.14 ft Wetted Perimeter. 8.53 ft Critical Depth... 0.73 ft Critical Slope... 0.0171 ft/ft Froude Number.... 0.56 (flow is Subcritical) Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 PACTM[LE COVER SI4EET ' To: Tony Withers Company: Withers & Ravenel At: 467-6008 F N G P elson rom: . aul ' Fax: 919-231-0636 Date: 5/22/97 Company: ECPS, Inc. Voice: 919-221-0626 Time:10:00PM Pages Including Cover: I COMMENTS: Tony, I have checked with the COE regarding the guidance on stream mitigation. Ken Jolly Indicated the state guldellnes would be fine for now In their consideration of the stream mitigation plan. State guidelines Indicate the stream channel cross-ceetlon should be designed to Carry no more than the 2-year, 24 hour storm. Pool to riffle sequence should be spaced at 5 to 7 times the channel width and pools are generally two times deeper than the riffle area. In order to prevent the increased cost of streambank restoration (and potential failure of the mitigation), prior to constructing the stream mttlgatlon, the area should be mowed or cleared by hand. It may be that the constructed stream channel could be plowed into the substrate or either excavated with a rubber-tired backhoe. We may need to discuss where and how the fill Is to be placed If the latter alternative Is utilized. State guidance Indicates the use of tiptop should be minimized. Call me if you have any questions. Nelson. ,. 1 t - Yy ti THE INFORMATION CONTAINED IN THIS FAX IS INTENDED FOR THE EXCLUSIVE USE OF THE ADDRESSEE AND MAY CONTAIN CONFIDENTIAL ANIWOR PRIVILEGED INFORMATION. IF YOU ARE NOT THE INTENDED RECIPIENT, YOU ARE HEREBY NOTIRED THAT ANY FORM OF DISSEMINATION OF T142 COMMUNICATION IS STRICTLY PROHIBITED. IF THIS FAX WAS SENT TO YOU IN ' ERROR, PLEASE IMMEADIATELY NOTIFY US AT THE TELEPHONE NUMBER LISTED. THANK YOU FOR YOUR COOPERATION. ?K MAY-29-1997 09:23 ECPS Inc. v I i \ I r I ? , '>,?'•,\ \.. ? -----• ? .? ice. ,,1 __ 1111 i i ? ,+' \ it I r ',{ ? rr ` ', • ` _ _ I r r r I W O ?I itO \ 11 // /? W i I I (I \) ? I? i ? 1 ? r I 1 i r r ) { z rr j ? 1{, i I I ( r ?. }?; 1 1 r i , W ' I rr. r I j? 1 { 1 I r t? ! i ? r ! I h ? X 11 t ? /? r i I r O ?? 0{ { I 1 V, 17014, J i A? q4- ?.. '\1 \ , \I 1 , J A M>f&Yd .c ? ?3 Od0dd 1 III ti h' 11 l i i ch - •?•? 1 i 1 i ?? ?? I? I I. 1 1, 1 I I ? I??I " REPLY ATTENTION OF Regulatory Branch DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 May 8, 1997 Subject: Action ID No. 199700681 Mr. Tim Smith c/o Mr. Randy Smith Arbor Investments, L.L.C. 1005 High House Road Cary, North Carolina 27513 Dear Mr. Smith: Please reference the April 8, 1997 permit application, submitted on your behalf by Mr. Nelson G. Paul of Environmental Consultants and Permit Specialists, for Department of the Army (DA) approval to discharge fill material over 0.03 acre of jurisdictional waters (bank-to-bank tributaries) of the United States for the proposed construction of the James Jackson Avenue extension, from existing James Jackson Avenue west to the proposed Cary Parkway connector, associated with your future commercial development on the adjacent property. This proposed development, containing 192.3 acres, is located adjacent to and above the headwaters of Coles Branch, in Cary, Wake County, North Carolina. The application you have submitted does not include the anticipated impacts associated with the proposed construction of the adjacent, related commercial development. We would anticipate that adverse environmental impacts will occur as a result of additional fills within jurisdictional waters and/or wetlands associated with this project. Our regulations, (Title 33 of the Code of Federal Regulations, Part 325), outline processing procedures for a Department of the Army (DA) permit. We are required to look at "all activities which the applicant plans to undertake which are reasonably related to the same project and for which a DA permit would be required... District Engineers should reject, as incomplete, any permit application ' which fails to comply with this requirement." In addition, pursuant to December 13, 1996 Federal Register, Final Notice of t Issuance, Reissuance, and Modification of Nationwide Permits (61 FR 65874), General Condition 13(b)(3), notification to the District Engineer must include "any other NWP(s), regional ' general permit(s) or individual permit(s) used or intended to be used to authorize any part of the proposed project or any related activity." Mr. Eric Alsmeyer of my regulatory staff verbally explained our concerns to Mr. Paul during their telephone conversation of May 8, 1997. He outlined the fact that we have determined that the commercial development is reasonably related to the proposed road. In addition, based upon all information available to us at ' this time, we would have to consider the entire commercial development to be a single and complete project, the segmentation ' of which would preclude reasonable and feasible alternatives for minimization and avoidance of wetland impacts for the portions requiring an individual permit. Based upon our conclusions, you are notified that the application you have submitted is not complete and therefore cannot be processed at this time. You are advised to re-evaluate the manner in which you have applied for ' our approval and to resubmit the application with all required information. We will commence the processing of your application upon receipt of all complete and accurate information regarding ' the additional jurisdictional activities associated with the project. ' Please note that the following information will likely apply to the proposed project, particularly if your complete t application involves an individual DA permit. On November 15, 1989, the Department of the Army and the U.S. Environmental Protection Agency signed a memorandum of agreement (MOA) ' establishing procedures to determine the type and level of mitigation necessary to comply with the Clean Water Act, Section 404(b)(1) Guidelines. This MOA, which became effective on ' February 6, 1990, provides for (1) avoiding impacts to waters and wetlands through the selection of the least damaging, practicable alternative; (2) taking appropriate and practicable steps to ' minimize impacts to waters and wetlands; and (3) compensating for any remaining unavoidable impacts to the maximum extent 2 ' practicable and appropriate. To enable the Regulatory Branch to process a permit application in full compliance with this MOA, the following additional information should be provided with any application: a. Permits are available only for work dependent upon being located within an aquatic site and being the least environmentally damaging, practicable alternative. Information ' (alternatives analysis) regarding any other practicable alternatives, including upland alternatives, to the work for which you may apply must be provided, as well as justification ' that your selected plan is the least damaging to waters and/or wetland areas. ' b. It is necessary for you to have taken all appropriate and practicable steps to minimize wetland losses. Please indicate ' all that you have done, especially regarding development and modification of plans and proposed construction techniques, to minimize adverse impacts. ' c. The MOA then states that appropriate and practicable mitigation will be required for all unavoidable adverse impacts ' remaining after practicable minimization has been employed. Please outline your plan to mitigate for the projected, unavoidable losses of waters and/or wetlands, or provide ' information as to the absence of any such appropriate and practicable measures. Any questions or comments, as well as your complete Department of the Army permit package, should be addressed to ' Mr. Alsmeyer at telephone (919) 876-8441, extension 23. Sincerely, S. Kenneth Jolly ' Manager, Raleigh Regulatory Field Office I Copies Furnished: I1 1 Mr. Nelson Paul ECPS, Inc. 2216 Dobbin Place Raleigh, North Carolina 27604-3878 Mr. John Dorney Division of Water Quality North Carolina Department of Environment, Health and Natural Resources 4401 Reedy Creek Road Raleigh, North Carolina 27607 4 State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director ?EHNF? April 25, 1997 DWQ #970326 Wake County Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Sirs: ' On 4 April 1997, you applied to the N.C. Division of Water Quality (DWQ) for a 401 Water Quality Certification to impact 360 linear feet of waters for your project (James Jackson Ave.) located at North Maynard Road and Cary Parkway in Wake County. Your project has been forwarded to Mr. Danny Smith ' (919) 571-4700 of DWQ Raleigh Regional Office for review. This review will likely require an on-site inspection prior to the approval, modification or denial of your project site. If you have sent additional information to the U.S. Army Corps of Engineers concerning this project, please be certain that our staff have copies of this material so we can use it in our process in making a decision. 1 I According to our preliminary, in-house review since you propose to disturb greater than 150 linear feet of streams, it is likely that compensatory mitigation will be required by DWQ for this project as described in 15A NCAC 2H.0506 (b)(6). Our Regional Office staff can make this decision during their site visit. If adequate mitigation is required but not provided, this project will likely have to be denied. If stream mitigation is needed, the wetland Restoration Program can satisfy this requirement at $125 per linear foot of stream. Otherwise you will have to identify a suitable mitigation site and develop an approvable mitigation plan. Also if a mitigation plan is required, we will place this project on hold until its receipt in our Central Office. Enclosed are materials describing compensatory mitigation requirements for this program. Please call me at 919-733-1786 to discuss these matters if necessary. Until a mitigation plan is provided, this application is considered to be incomplete and our processing time will not start. We recommend that you not impact any wetlands or waters on your project site until a 401 Water Quality Certification has been issued from Raleigh, The issuance of a Corps of Engineers 404 Permit does not mean that your project can proceed. According to the Clean Water Act, the 404 Permit is not valid until a 401 Certification is also issued. If DWQ staff observe impacts which are not allowable, you will be required to remove the fill and restore the site to its original condition. I can be reached at 919-733-1786 if you have any questions about the 401 Certification process. R.466 rn ?ey r Quality C ' cation Program cc: Raleigh DWQ Regional Office Central Files Nelson Paul; ECPS 970326.rovst Division of Water Quality • Environmental Sciences Branch Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper ......... ............................. ......:::....:' ::::::::::::::::::::::.................................. ::............:::::::::::::::::::::::::::::::::::::::: ...... .... 1 ............. ............................... ENIflR?NMENT.4L CVNSUL TAN7:'SsWR FARM/T SFl?C/.4LlSTS 227S QOBB1PV Ac"CE RQLEIGIZ NC P7SO4 (9191231-06736 npau/&?/una_ com June 7, 1997 ' WATER QUALITY PLANNNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES ' P.O. Box 29535 Raleigh, North Carolina 27626-0535 ATTN.: Mr. John Domey ' Subject: ARBOR INVESTMENTS, L.L.C. CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 ' APPLICATION Gentlemen, ' Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for the above-mentioned Project. This project was previously considered by your office as a NWP ' 14 application for the James Jackson Avenue portion of the property. Additional information regarding the plans for the entire property was requested by the U.S. Army Corps of Engineers during the previous application review. Please review the attached information and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. ' Cordially yours, ' ECPS, Inc. r ' ANelson G. Paul General Manager/Land Use Consultant 1 ............ ..............J ..............................................................................................................................................................................._......................................................... tEJ WNZ?0VAlEA0'7A1 CUMSUL rAffIS. Z71IFRA!/TS)WCIAL/STS 2215OCBB/IV AV_ACE R4LE1GH. JVC 2.rS&Af /3719/ 231-06. 6 npaa!(?/una. coin ' June 7, 1997 National Marine Fisheries Service ' Habitat Conservation Division Pivers Island Beaufort, North Carolina 28516 ' State Historic Preservation Office N.C. Division of Archives and History 109 East Jones Street ' Raleigh, North Carolina 27601 ' Subject: ARBOR INVESTMENTS, L.L.C. CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION ' Gentlemen , ' Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for the above-mentioned Project. This project was previously considered as a NWP 14 application for the James Jackson Avenue portion of the property. Additional information regarding the plans for the entire property was requested by the U.S. Army Corps of Engineers during the previous application review. Please provide me with any comments your office may have ' regarding this project. Thank you for your assistance and please feel free to call me at (919) 231-0636 or through my voice mail/pager (919) 406-7562 if you have any questions. ' Cordially yours, ECPS, Inc. 6A ' Nelson G. Paul General Manager/Land Use Consultant f .............................................. ...........................................................................................................................: ENY/ROWSMEWMZ CONSUL TsINTSsWO FERN!!/T S CL4L/S73' 2276 0OBB/Nf?LstCE. AW eAl:H. NC ?ZS&4 IN191231-OB36 npau/?funa_ ?c?m June 7, 1997 ' WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY ' 6508 Falls of the Neuse Road, Suite 120 Raleigh, North Carolina 27615 ATTN.: CESAW-CO-E Subject: ARBOR INVESTMENTS, L.L.C. CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 ' APPLICATION Gentlemen, Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for the above-mentioned Project. This project was previously considered by your office as a NWP ' 14 application for the James Jackson Avenue portion of the property. Additional information regarding the plans for the entire property was requested by your office during the previous application review. Please review the attached information and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. ' Cordially yours, ' ECPS, Inc. ' Nelson G. Paul General Manager/Land Use Consultant ip, , Y. 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I _ 1 i' . w K _ I li f ?', • ' 1 ' ` _" .s y F A .1,,... ?X:.?. . ,I 4 rr4 1 1 T 1 ( t,, I > >, N ,7. J, JI 1 4 ` y ., ,V , ? R 1 4? i ?I y ` j f 1 -,4 4 ..Y t ?? ?k. 1 J - t 1, F?? y (, `it . -I J ? v 4 v L! { * ?Fr 1 R yy S 6, f J `l Y, I 11:' , ? 1 x ; 1 j ,, 5; '.y I, y V T ? 7 F t a 4 i t ?, r t r? 1 V 1 f[?! t 5 _ V A fi yy l ;?, R / i " X1 I A } y !: 1 c e t t - 4 ,,i ?- _ k (`I `, .;f?? i 4 i i . t l ?` i i ? .. 'hl1t t, ,i z ? ! i ; 4 4 s 1-el w I , ryi, .y1 1 1 V h t, 1 . Ij q F i o- ? " S `l i ! l, r t i ;l f I 4? } "I l ?} 1 p , fi } Y 4f .h )T y VIVO _ - 1 4 7 y. " i ? l 1 1 N ` t r4 . - .4 , " 6 yx . f r '.V ?1 5•? 11101 i e?• i "-, ?, 2,r • 1 ` j ,?1 ,'. ern NCDENR DIVISION OF WATER QUALITY December 10, 1998 Memorandum To: John Dorney From: Todd St. John Subject: Arl.or investments, LLC DWQ No. 970326 Wake County I have reviewed the preliminary stormwater treatment proposals for the subject -'roject. R +sed on the area aiid ether data oil-,Vi 'ed on tK- •?::=,?? :i, --d , I!, '1,Q_ % t? industrial park ponds and 10/30.99E `?:)r the shopping cemey [114„,-- .wJ01i are..s, t :=:rYeC-r- that the stormwater treatment structures can be sized adequately. U _-AW1?piYA/ENT.4L CONSUL T1!/VTS 22r600BB/NFYACE. f7?E/GH ADecember 2, 1998 Mr. John Dorney State of North Carolina, DEHNR Division of Water Quality, Environmental Sciences Branch 4401 Reedy Creek Road Raleigh, North Carolina 27607 It W W. A OW Subject: Arbor Investments, L.L.C. Property, Cary, North Carolina Previous DWQ Project # 970326 Nationwide Permits 14 & 26 Dear Mr. Dorney, Reference our meeting at your office on November 11, 1998. Also present at this meeting was Randy Smith of Preston Development Company; Bernie Garrett, Sam Ravenel and Tony Withers of Withers & Ravenel, project engineers; and Todd St. John of your staff. Our purpose was to continue our on-going discussions regarding the terms and conditions relative to completing the permitting the above-mentioned project. In summary, the subject project was partially authorized by your office on July 17, 1997. Because the majority of stream impacts were to intermittent streams having relatively low biological productivity, the stream mitigation plan submitted with the application was determined to not be required. Additionally, subsequent discussions have determined the project is "vested" in regards to the Neuse River Buffer Rules and said rules are not applicable. The purpose of this most recent meeting was for the engineers to discuss specific plans for meeting 85% reduction in total solids for stormwater discharge. Said reduction has been indicated as a requirement for 401 Certification approval. Attached are the conceptual plans for meeting the stormwater requirement. The plan entitled "Preston East Industrial Park, Cary, NC" shows the overall stormwater management plan for parcels 1 through 16 adjacent to Tower Court and James Jackson Avenue. A second drawing entitled "Preston East Planning" denotes the conceptual plan for the shopping center parcel located in the southeastern corner of the intersection of Cary Parkway and James Jackson Avenue. The stormwater detention basins proposed in these plans should address the requirements of your office necessary for 401 Certification. The construction of these basins will impact approximately 2370 square feet or 0.054 acre of intermittent stream channel having relatively low biological productivity. Total project impacts are approximately 8080 square feet or 0.185 acre. A table providing a summary of the project impacts is attached. ZWPWOMOZWrAL MASM rAOV7SAAVAt A/I/rSWrVW"7S Mr. John Dorney, Division of Water Quality, re: Arbor Investments, L.L.C., Cary, NC It is hoped this additional material will provide the necessary information required to act favorably on this request. Should you have any questions regarding this or any other related matter, please feel free to contact me at (919) 231-4409. Cordially yours, 4-C9"?. pj ECPS, Inc. Nelson G. Paul Manager/Consultant 1 of 3 TABLE ARBOR INVESTMENTS, L.L.C. SUMMARY OF PROJECT IMPACTS NATIONWIDE PERMIT 14 STREAM IMPACTS (PERMITTED) PROJECT SEGMENT: JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 1 4 175 700 2 4 185 740 TOTALS 8 360 1440 (ACRES) 0.033 PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIK ANTENNAE 3 2 125 250 4 2 180 360 TOTALS 4 305 610 (ACRES) 0.014 PROJECT SEGMENT: RESIDENTIAL DEVELOPMENT SOUTH OF COLES BRANCH 5 5.5 180 990 6 1 180 180 TOTALS 6.5 360 1170 (ACRES) 0.027 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE 7 4 180 720 8 1.2 180 216 TOTALS 5.2 360 936 (ACRES) 0.021 PREVIOUS GRAND TOTALS 23.7 1385 4156 (ACRES) 0.095 12/2/98 2 of 3 TABLE 12/2/98 ARBOR INVESTMENTS, L.L.C. SUMMARY OF PROJECT IMPACTS NATIONWIDE PERMIT 26 STREAM IMPACTS (PERMITTED) PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 9 4 340 1360 10 1.2 160 192 TOTALS 5.2 500 1552 (ACRES) 0.036 PREVIOUS GRAND TOTALS: 5.2 500 1552 (ACRES) 0.036 3 of 3 TABLE 12/2/98 ARBOR INVESTMENTS, L.L.C. SUMMARY OF PROJECT IMPACTS NATIONWIDE PERMIT 26 STREAM IMPACTS (PROPOSED) PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIK ANTENNAE 11 2 293 586 12 2 421 842 TOTALS 4 714 1428 (ACRES) 0.033 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKS6N AVENUE 13 4 235 940 TOTALS 4 235 940 (ACRES) 0.022 ADDITIONAL SUBTOTAL 2368 (ACRES) 0.064 TOTAL PROJECT (PREVIOUS AND PROPOSED) 8076 (ACRES) 0.185 -- - -- - -- --.................. ----_- -...-..........-.._.----------------- ....................... ENY/g0/YAIENTi4L CONSUL TilNTS.4N0 Fl?i7AI/TSf-LFCl.4L/S7S PP16 00BB/NPl.QCE /7?F/GfiG NC P760? X719/ P?1-??'09 npau/??uno. room December 2, 1998 Mr. Eric Alsmeyer Area Coordinator Raleigh Regulatory Office US Army Corps of Engineers 6508 Falls of the Neuse Road, Suite 120 Raleigh, North Carolina 27615 Subject: Arbor Investments, L.L.C. Property, Cary, North Carolina Previous Action ID(s) 199700681 and 199700853 Nationwide Permits 14 & 26 Dear Mr. Alsmeyer, This letter is to request concurrence with an amendment to permits issued previously for the above- mentioned project. Based on discussions with the North Carolina Division of Water Quality, it has been determined stormwater detention basins are required meet water quality standards for State 401 certification. The construction of these basins will result in additional impacts of approximately 2370 square feet or 0.054 acre. These impacts will be to intermittent stream channels of relatively low biological productivity. Total project impacts (including previously-permitted impacts associated with Nationwide Permit 14 road crossings) are approximately 8080 square feet or 0.185 acre. A table providing a summary of the project impacts is attached, as are figures showing the proposed stormwater detention basin areas. Please provide us with written concurrence regarding this request. Should you have any questions regarding this or any other related matter, please feel free to contact me at (919) 231-4409. Cordially yours, ECPS, Inc. Nelson G. Paul Manager/Consultant C 5?/ /??- - in' I ` t I l arg Ch T ~ I o ??CI O I, ? o ??J ?Q I V s? n ?• ??N?? Q?,??t I%/ SOURCE: CARY, NC 7-112 MINUTE QUAD FIGURE 1 SITE LOCATION MAP E?vr?rAO?n.Earac ARBOR INVESTMENTS, L.L.C. ?oksu?T PROPERTY .?NO PL`•AM/T ?rs6ooaeivcF auE/Cic NC P1fII CARY NORTH CAROLINA a? nn em r - ? - JSO r 11 ¦ ?IJ 40 i A S Z r Goo (NOT TO SCALE) FIGURE 2 INDEX MAP EAONAIENT.QL ARBOR INVESTMENTS, L.L.C. Colvst& T.QNTS PROPERTY ".0 f?AM/T zz/s oaoaovawcF acF/(/c NC IJi9I CARY7 NORTH CAROLINA SFi?CdQL/ST.S /1/syll/,06.)li qei? na cinm .r -?-- N_ J 0 10 .?.Opp,. s ? V ? Q i • i e • i s a • t 1 • I f r •Q ° V SCALE: 1" - 50' eA%7R40NA1EA'rAl CV SUCTA0V7N AOVo PEi4M/T rrlsaa?uvgwcE ?E.clc,.c r?a'ai SAWCLNL/S7.' /)1? x719696 FIGURE 14 AREA 13 COMMERCIAL RETAIL PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA • Ifs `V 30' R/W EASEMNET• 0 ; COLONIAL. PIPE(_INE ??t t pQ ° i , 1. _ _ ? tt7 ;y( e1 irvaw-, Opp i U F'n No 1 Oll I ! ? t 1 t t ? 17 3.27 i _ t oc, t i 2.22\AC. A4L POND ?• 1, i / , _ -o ?, , - - - SCALE: 1" a 100' FIGURE 16 AREA 11 INDUSTRIAL DEVELOPMENT 7"- rS tL PROJECT COMM0UL TstNTS CONS ANO ?HAfLT 7l/600ddAMf;AC'E ARBOR INVESTMENTS, L.L.C. swEK.rt .vc v?os S'F??C.QQL/STS /9/9/771-06.)6 ?w^^^^T CARY, NORTH CAROLINA ?`l9 :_. /0? 18 AC.- 3.27 _-------- ?- - ?,? ??? ?/4PD'`;.' WETLANDS Tcl?o ET P N \ TOG r., AER SCALE: 1" a 100' FIGURE 16 AREA 12 INDUSTRIAL DEVELOPMENT ' T`1L PROJECT COWS. & r"7S CONSUL TANT "Z7 lWEM./? NC 7J60I ARBOR INVESTMENTS, L.L.C. .!/?C/1?L/ST.! /919/ Il/ 0676 CARY, NORTH CAROLINA A-A lJ V, 1 /?`? N4 ,?4ja IZ lgq`I yl, ?J qt7k--- fjj?-(qcid XPD- vu$& lit (, D (-vm&O ?? N w 1(4 N U) :??(fymwojj, 06y-- ?- ?nOXS Ghs7 5.? c1?( wiiz?l ??5 ? SAS - Dad zoo ono a;?e 0-0 4VIIIII )D? D N4kk-? ?--- til/ 6k o`er ?? 0 QDuI? Vlk ay?J?P-v s V P/nif bid95 ??- ( ;CW VX5 ' A,? Tolf?/J?? C,310 VIAIV?? 66 W? VvIr k?c,c (2rv-?Ct" vt N? ? b Iq?B ?vr__?c '? IS ? tM G?:??? v1a?' ?Ei?ettE. ?A-R?F.t''T' W t-Mtts ? ?A?,rv? ?8t -3?0 `f? 5-330 ? 5 - 3 3 4-c? State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director 1 ?• NC ENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES September 17, 1998 Mr. Randy Smith Arbor Investments, LLC 1005 Highhouse Road Cary, NC 27513 Dear Mr. Smith: Re: Neuse River buffer rules Arbor Investments, LLC project DWQ # 970326 Wake County As we discussed at our meeting on September 14, 1998, DWQ has determined that this project at Cary Parkway and Maynard Road has vested rights for the Neuse River buffer rules since DWQ issued a 401 Water Quality Certification for road crossings for this project on July 17, 1997. As you are aware, an amended 401 Certification will be required for the additional stream impact described in your June 1997 submittal including a stormwater management plan. However this additional impact will not jeopardize this vested status. Please call me at 919-733-1786 if you have any questions. S' 'merely, Joh R. Dorney cc: DWQ Raleigh Regional Office Raleigh Field Office, US Army Corps of Engineers Central Files Wetlands/401 Unit 4401 Reedy Creek Road Raleigh, North Carolina 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post consumer paper L-44? &i k", ? A-I?f rovw N ?a TUYV- y A) (VLZ;F V4-Q? /:OY IV W,?96 0 Al tj / L? k?? vtsll-9 IV i9q7 NwZb "Z)Oy R r99? N6J 14 NNW l? 01 0...r 4.,,-e v?sv nelz m U? V4" ??tof- arP9 ?? ,?.y 1911-svvrlo-l MEMORANDUM PRINT NAMES:,, Reviewer: TO: JOHN DORNEY WQ SUPV.: ENVIRONMENTAL SCIENCES BRANCH DATE: - It-7 I T!7' SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS ;;**EACH ITEM MUST BE ANSWERED (USE N/A FOR NOT APPLICABLE) * PERMIT YR: 97 PERMIT NO: 0000326 COUNTY: WAKE APPLICANT NAME: ARBOR INVESTMENTS LLC PROJECT TYPE: ROADWAY CROSS/NO DOT PERMIT TYPE: NW 14 COE #: DOT #: RCD_FROM _CDA: APP DATE_FRM_CDA: 04/14/97 REG OFFICE: RRO RIVER AND SUB BASIN J: 0304 STR INDEX N0: 27-33-3 STREAM CLASS: CNSW WL_IMPACT?: Y N WL_REQUESTED : vo, vlRj WL_SCOREM : /V( 4 MITIGATION?: Y/T WL TYPE : 4 F WL ACR EST? :I YXN WATER IMPACTED BY FILL?: O/N MITIGATION_TYPE:1"v7 MITIGATION-SIZE: DID YOU REQUEST MORE INFO?: Y/?T IS WETLAND RATING SHEET ATTACHED?: Y N? HAVE PROJECT CHANGES/CONDITIONS BEEN DISCUSSED W LICANT?: RECOMMENDATION (Circle One): ISSU ISSUE/CO DENY COMMENTS: n S (S During the 5/5/97 site visit, it was determined by RRO staff that _ the proposed 360 feet of total impacts will occur in an intermittent stream. It is not believed that this is a positive _ 7Q10/30Q2 stream. In addition, with the exception of a single _ crayfish, some waterstriders, and algae/periphyton, there are- likely no "significant" aquatic uses in place. However, the 401 . should be issued with the following conditions: 1) side slopes- should be 3:1 or greater to minimize impacts. CC: Regional Office Central Files DIVISION OF WATER QUALITY 6/17/97 MEMORANDUM TO: Judy Garrett Raleigh Regional Office FROM: John DorneyQ RE: 401 Certification Review Please review the enclosed 401 Certification application by July 7, 1997. Please call me if you or your staff have any questions, or need assistance in this review. PLEASE COMPLETE THE STAFF REPORT AND RECOMMENDATION FORM 1. Arbor Investments t"N #970326 Wake County The other enclosed material (if any is for your general information and use as appropriate. Enclosures PR I *;T 'DAMES : i Peviewer: ro : JOtEd PoRNEY WQ SUPV. : ENVKONMENTAL SCIENCES BRANCH DATE: SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS ***EACH ITEM MUST BE ANSWERED (USE N/A FOR NOT APPLICABLE) PERMIT YR: 97 PERMIT NO: 0000326 COUNTY: WAKE APPLICANT NAME: ARBOR INVESTMENTS LLC PROJECT TYPE: ROADWAY CROSS/NO DOT PERMIT TYPE: NW 14 COE #: DOT ff : RCD_FROM _CDA: APP DATE FRM_CDA: 04/14/97 REG OFFICE: RRO ZIVER AND SUB BASIN J: 0304 STR INDEX N0: 27-33-3 STREAM CLASS: CNSW WL IMPACT?: Y/N WL TYPE: WL_REQUESTED: WL_ACR_ EST?: Y/N WL_SCORE M : WATER IMPACTED BY FILL?: Y/N MITIGATION?: Y/N MITIGATION TYPE: MITIGATION-SIZE: DID YOU-REQUEST MORE INFO?: Y/N IS WETLAND RATING SHEET ATTACHED?: Y/N HAVE PROJECT CHANGES/CONDITIONS BEEN DISCUSSED WITH APPLICANT?: Y/N RECOMMENDATION (Circle One): ISSUE ISSUE/COND DENY COMMENTS: Regional Office Central Files State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality Ja mes B. Hunt, Jr., G ovemor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director June 12, 1997 F= F1 MEMO R TO: Danny Smith, RRO FROM: John Dorn 4y[)(q VILL( WiR RALEIGH RE: Arbor Investments, LLC ; I?L:'ouAL oFFICE DWQ # 970326 Wake County Nelson Paul (consultant for this project) called with some information with regard to this project. Originally the Corps of Engineers was going to require mitigation so Nelson prepared the enclosed mitigation plan. However (apparently) the COE will not now require mitigation. I assured Nelson that we would make a decision regarding the need for mitigation based on our rules regardless of whether it was "offered". Please review the project in our normal manner. If our rules would require mitigation, then the enclosed plan is relevant. If our rules would not require mitigation, then please ignore that part of the application. 970326.mit cc: Nelson Paul Environmental Sciences Branch • 4401 Reedy Creek Road Raleigh, North Carolina 27607 Telephone 919-733-9960 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer 501% recycled/10% post consumer paper . 1k PRE-DISCHARGE NOTIFICATION PCN TO: National Marine Fisheries Service Pivers Island, NC FAX (919)728-8796 US Fish & Wildlife Service Asheville, NC FAX (704)258-5330 US Fish & Wildlife Service Raleigh, NC FAX (919)856-4556 State Historic Preservation Office Raleigh, NC FAX (919)733-8653 NC Division of Water Quality Raleigh, NC FAX (919)733-9959 NC Wildlife Resources Commission Creedmoor, NC FAX (919)528-9839 1. ACTION ID: 199700681 2. APPLICANT: Arbor Investments 3. DATE OF TRANSMITTAL: 6/16/97 RECEIVED JUN 1 7 1997 ENVIRONMENTAL SCrENCFS 1." 1 4. RESPONSE DEADLINE(5 days from transmittal):6/20/97 5. COMMENT DEADLINE(10 days from response deadline):6/30/97 6. SEND COMMENTS TO: RALEIGH REGULATORY FIELD OFFICE RALEIGH, NC ATTN: Eric Alsmeyer FAX (919) 876-5823 We are also forwarding the attached PCN to the Fish and Wildlife Service and the National Marine Fisheries Service for review and comment concerning any likely affect to any threatened or endangered species or their critical habitat within those agencies' jurisdiction. rvf all c+?,?? nab ?? e z a?Y?? Cary ?e State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., G ove mor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director June 12, 1997 MEMO TO: Danny Smith, RRO FROM: John Dorn 91po RE: Arbor Investments, LLC DWQ # 970326 Wake County 09WA IT 0 A&4 02 [D F= F=1 Nelson Paul (consultant for this project) called with some information with regard to this project. Originally the Corps of Engineers was going to require mitigation so Nelson prepared the enclosed mitigation plan. However (apparently) the COE will not now require mitigation. I assured Nelson that we would make a decision regarding the need for mitigation based on our rules regardless of whether it was "offered". Please review the project in our normal manner. If our rules would require mitigation, then the enclosed plan is relevant. If our rules would not require mitigation, then please ignore that part of the application. 970326.mit cc: Nelson Paul Environmental Sciences Branch • 4401 Reedy Creek Road Raleigh, North Carolina 27607 Telephone 919-733-9960 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer 501/6 recycL-Wl0% post consumer paper 227 :::::::::....::' ttZs:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ` ................................................ ...................... .. ... ..........................._ ERIL4ROR/MErVT.4L C17RISl/L T.4?YT:, sINQ PERM/T S?C/.?IL /STS 2216 D&",&IV AY_4CE R 2.114 ZZ, RIG' 27S" 191-912W-06r-767 aal?frsira_ ?vm June 7, 1997 9? 03 2 6 WATER QUALITY PLANNNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES P.O. Box 29535 Raleigh, North Carolina 27626-0535 ATTN.: Mr. John Dorney Subject: ARBOR INVESTMENTS, L.L.C. CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION Gentlemen, Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for the above-mentioned Project. This project was previously considered by your office as a NWP 14 application for the James Jackson Avenue portion of the property. Additional information regarding the plans for the entire property was requested by the U.S. Army Corps of Engineers during the previous application review. Please review the attached information and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. Cordially yours, ECPS, Inc. Nelson G. Paul General Manager/Land Use Consultant V" F0 2L?o/L ? ? FO ??tiTq ?s9, _-._.-__ - ........................................ ENL'/RONi61 _7,V74 CONSUL 7.dNTS.4NL7 ?RAf/TSPEC/fiL/STS 2216LJOBB/Nf3C.dGE R4LE/a1Y NG 2TSC14 1919f 231-4409 np8u/?7%urrn-cnm August 21, 1998 Ms. Annette M. Lucas, Environmental Engineer NCDEHNR, Division of Water Quality, Water Quality Planning 512 N. Salisbury Street P.O. Box 29535 Raleigh, North Carolina 27626 Subject: Arbor Investments L.L.C. Property, Cary, North Carolina Request for "Vested Right' Review Neuse River Riparian Area Regulations Dear Ms. Lucas, This letter is to submit the attached information for a "vested right" review of the Arbor Investments L.L.C. property located in Cary, North Carolina. The owners of the property have made exes and incurred contractual obligations, substantial in amount, prior to the enactment of the Neuse River Riparian Area Regulations on July 22. 1997. This includes a 401 Certification for the proposed development from the NC Division of Water Quality. Arbor Investments LLC. has incxured the expense to design and build this project in good faith. The project was conceived and undertaken in consideration of water body nJes applicable prior to July 22, ould have a sgnificart adverse 1997. Applying the Neuse River Riparian Area Rules to the project now Y impact to the owner's investment-backed expectations. Please feel free to review this project for 'vested rights by reviewing the attached docurnentation and should you think it is necessary, visiting the site. If you have any questions regardng this or any other related matter, please feel free to contact me at (919) 231-0636 or through my voice mail pager at (919) 406-7562. Cordially yours, Nelson G. Paul Manager/Land Use Cons tta7t ECPS, Inc. O ,F,ww,70A4MENT r COAMIM rAWTY AoWV PFAN/TSf'£CIAL/STS MEMORANDUM To: Randy Smith Preston Development From: Nelson Paul ECPS, Inc. Subject: Memo of 8/20/98-Response from State Officials Arbor Investments, L.L.C. James Jackson Avenue Federal and State Approvals Date: August 21, 1998 As I related to you this morning by telephone, I posed the situation outlined in my previous memo to Jennifer Gaddis, secretary of the state Wetland Group. Ms. Gaddis, in turn, relayed this to John Domey. Ms. Gaddis said that Mr. Domey indicated we are to follow the ammended application. Including this conversation, the way I understand the permit is we are authorized to conduct the development activities outlined herein, minus the proposed mitigation. With this in mind, I will be checking on the applicability of Neuse River buffers. Feel free to call if you have any questions. Page - 1 ,-MW VA*&-1VrAZ COWW"i7&WrSA 1V'AAUWrS1V7CWrsrs MEMORANDUM To: Randy Smith Preston Development From: Nelson Paul ECPS, Inc. Subject: Arbor Investments, LLC. James Jackson Avenue Federal and State Approvals Date: August 20, 1998 As we discussed this morning, I have reviewed the applications and approvals we received regarding the James Jackson Avenue Project. As you may recall, we initially submitted an application on April 8, 1997 for a Nationwide Permit (NWP) 14 to authorize the road crossings associated with James Jackson Avenue. This application was subsequently put on hold by the US Army Corps of Engineers (COE) by letter dated May 8. 1997. The COE required that the permit application be amended to include arty development that is'Yeasonabiy related to the proposed road Addtionady, the COE letter indicated that they `could have to consider the entire commercial development to be a single and complete project, the segmentation of which would preclude reasonable and feasible attematives for minimization and avoicance of vwedland impacts for the portions requiring an individual permit". Copies of the letter were sert io the State Wetlands Group (who issue 401 Certifications). As you may also recall, you and I met viM the State Wetlands Group (specificady John Domey, Eric DeLamb, Cindy Bell and Danny Smith) ad the Wetlands Group offices on May 7, 1997 to aiscuss the specific project. During this meeting vo-- discussed vrhen stream rritigation vow required and the options of stream mitigation. Subsequently, an on-site meeting ocxcured vith Eric Fieece, who determined some stream segments on the property to be intermittent and some to be perennial. Our subsequent application offered stream mitigation for M the impacted peremia stream sep-.ents. Because the state did not feel the impacted perennial stream segmerts supported any significxint marine life, the mitigation we later provided was not required. Adddonally, prior to submitting the amerded application showing the complete site development proposal and mitigaii , plan for the total prvje- impacts, vw met with Eric Alysmyer of the COE in his office (play 20, 1997) to discuss specifically vtmt would be required in this package. Because the agencies required a drscksxe of the plans for the toad development, the amended application specified it vras an appl" n for both NV#V 14 and MVP 26. The addition of NWP 26 wes necessitated by the increased deveiio? impacts a-amciated vAh the total project disclosure required by the COE. Clearly the COE undue this in issu[inQ their auftrization dated July 16, 1997. The State, on the other hand, must nct tave read the amended apg6cetion veq carefully. Their letter of July 17, 1997 discusses orfy a 401 ce Mcation for MVP 14 for Jaynes Jacksan Avenue, but at the same time, references the revised June perme amendmer In conclusion, we made arpptication for s;ecific permbs that were rot acted on by the state- State regulations require the state to ad on xrAications wiMin a specific period of ti'ae, but I am going to have to defer to your attorney as to vt.e tier the ad'difcnal NWP 14 and NWP 25 aspects of the amended application fall under the "vairsr of certficadon" outfi )ed in NCAC !5k 02H .0507 (a). Documentation attached. Please fee' Ire to cal :f y,,u have any questions. Page- - State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director ?EHNF4 July 17, 1997 Wake County DWQ Project 'r 970326 APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS Mr. Randy Smith Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Mr. Smith: You have our approval, in accordance with the attached conditions and those listed below, to place fill material in 0.033 acres of waters (360 Linear feet) for the purpose of constructing a road crossing at James Jackson Road, as you described in your application dated 7 April 1997 (revised plan re caved 18 June 1997). After reviewing your application, we have decided that this fill is covered by General Water Quality Cerdficarien Number 3103. This certification allows you to use Nationwide Permit Number 14 wh,= it is issued by the Corps of Engineers. This approval is only valid for the purpose and design that you described in yet= wplication except as modified below. If you change your project, you must notify us and you may be recUL' to send us a new application. If total wetland fills for this project (now or in the future) exceed one acy., compensatpry midgation may be required as described in 15A NCAC 2H.0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions l s;ed below. The culverts under the roads shall be countersunk to allow aquatic life movement. Applicant is reed that a stormwater management plan will eventually be needed for the adjoining parcels if the area is deve3cced for commercial or industrial use. In addition, you should get any other federal, state or local permits be=ar- you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormw-,-,--7, Non-Discharge and Water Supply Watershed regulations. This approval will expire when the accompamr...Y 404 or C-M A permit expires unless otherwise specified in the General Certification. If you do not accept any of the emotion of this certification, you may ask fcr z: adjudicate y hearing. You must act within 60 days of the due that you receive this letter. To ask for a hem-, send a -*Tirten petition which conforms to Chapter 150B of tie North Carolina General Statutes to the Off. :f Adminis=sdve Hearings, P.O. Box 27447, Raleigh, N.-C- 276 1 1-7447. This certification and its ca-mad2ir-ons are anal and binding unless you ask for a hearing. This letter completes the review of the Division of Water Quality under Section 2*1 of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733-1786. Since ,41y, I #tLonHowar d, Attachment cc: Wilmington District Corps of E3gheers Corps of Engineers Raleigh F.eJd Office Raleigh DWQ Regional Office Mr. John Dorney Central Files * S'r""On Tiu1; ,BCPS r 9703261tr Division of y/s:tar Duality • Environmental Sciences Etarct Environmental Sciences Eranch, W.;' Facdy Creek Rd., Raleigh, NC 27607 Telepre-re 919-73_-'7s6 FAX # 73.9-9959 An Equal Opportu=nity Affirri.a:•,re Acticn Employer • 500% recyc!ed/10% K--V. xnsumer r-er State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James & Hunt, Jr., G ovemor Jonathan Q Howes, Secretary A. Preston Howard, Jr., P.E., Director June 12, 1997 MEMO TO: Danny Smith, RRO FROM: John Dorn. Co ?Iar RE: Arbor Investments, LLC DWQ # 970326 Wake County A;41j 0 soft ?EHNF=1 Nelson Paul (consultant for this project) called with some information with regard to "'tis project. Originally the Corps of Engineers was going to require mitigation so NeLon preparyc: the enclosed mitigation plan. However (apparently) the COE wt11 aot now require mirig--tion. I assured Nelson that we would make a decision regarding the ne-c for mitigation >•z?ed on c_ rules regardless of whether it was "offered". Please review the project in our norma; marmc.. If our rules would require mitigation, then the enclosed plan is rele-ti-ant. If our rules would not require mitigation, then please ignore that part of the application- 970326.mit cc: Ielson Paul E:-viron rr-,c- r.P; Sciences Eranch • 4Ar, =.eedy G? :;cad Raleigh, North G-. it a 27?:- Te!ephcne 919-733-99PA FAX # 753-mil: An =_qt,-3I C?rrrss? 41frr ? loom Excjcver Si'. recyci.110% pc5 =Ml7fe'f iZS. U.S. ARMY CORPS OF ENGINEERS Wilmington District Action ID: 199700984 COPY County: Wake Notification of Jurisdictional Determination Property Owner: Anvil Investments, LLC Address: ATTN: Randy Smith 1005 High House Road Cary, NC 27513 Telephone No.: 481-1212 Consultant: ECPS,Im ATTN: Mr. Nelson Paul 2216 Dobbin Place Raleigh, NC 27604 231-0636 Location of project (waterway, road name/number, town, etc.): 188.427 acres, adjacent to, and below the headwaters of, Crabtree Creek, on the southeast side of Crabtree Creek, east of NC 54 and north of Weston Parkway, in Cary, North Carolina. Indicaie Which of the following apply: X There are wetlands on the above described property which have been delineated and which we strongly suggest be surveyed. The surveyed wetland lines must be verified by our staff before the Corps will make a final jurisdictional determination on your property. Because of the size of your property and our present workload, our identification and delineation of your wetlands cannot be accomplished in a timely manner. You may wish to employ a consultant to obtain a more timely delineation of the wetlands. Once your consultant has flagged a wetland line on the property, Corps staff will review it, and, if it is accurate, we strongly recommend that you have the line surveyed for final approval by the Corps. The Corps will not make a final jurisdictional determination on your property without an approved survey. X The wetlands on your lot have been delineated, and the limits of Corps jurisdiction have been explained to you. 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. _ There are no 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. 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 Eric me er at telephone number (919) 876-8441, extension 23. Project Manager Signature Date July 15, 1997 'OrExpiration Date July 15, 2002 SURVEY PLAT OR FIELD SKETCH OF DESCRIBED PROPERTY AND THE WETLAND DELINEATION FORM MUST BE ATTACHED TO THE YELLOW (FILE) COPY OF THIS FORM. CF: ECPS, Irr- State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James R Hunt, Jr., G ove mor Jonathan B. Howes Secretary A. Preston Howard, Jr., P.E., Director June 12, 1997 MEMO TO: Danny Smith, RRO MOM: John Dorn q> RE: Arbor Investments, LLC 'DWQ # 970326 Wake County A 'T LT4 -- -- OLMI 2 ? EDO EHNF=?L Nelson Paul (consultant for this project) called with some information with regard to this project. Originally the Corps of Engineers was going to require mitigation so Nelson prepared the enclosed mitigation plan. However (apparently) the COE will not now require mitigation. I assured Nelson that we would make a decision regarding the need for mitigation based on our rules regardless of whether it was "offered". Please review the project in our normal manner. If our rules would require mitigation, then the enclosed plan is relevant. If our rules would not require mitigation, then please ignore that part of the application. 970326.mit cc: /- 1Qelson Paul Environmental Sciences Branch • 4401 Reedy Creek Road Raleigh, North Carolina 27607 Telephone 919-733-9960 FAX # 733-9959 An Equal Opportunity Atfim &e Action Employer 509/6 recychxV101% post consumer paper DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 REPLY TO ATTENTION OF May 8, 1997 Regulatory Branch Subject: Action ID No. 199700681 Mr. Tim Smith c/o Mr. Randy Smith Arbor Investments, L.L.C. 1005 High House Road Cary, North Carolina 27513 Dear Mr. Smith: Please reference the April 8, 1997 permit application, submitted on your behalf by Mr. Nelson G. Paul of Environmental Consultants and Permit Specialists, for Department of the Army (DA) approval to discharge 'Lill material over 0.03 acre of jurisdictional waters (bank-to-bank tributaries) of the United States for the proposed construction of the James Jackson Avenue extension, from existing James Jackson Avenue west to the proposed Cary Parkway connector, associated with your future commercial development on the adjacent property. This proposed development, containing 192.3 acres, is located adjacent to and above the headwaters of Coles Branch, in Cary, Wake County, North Carolina. The application you have submitted does not include the anticipated impacts associated with the proposed construction of the adjacent, related commercial development. We would anticipate that adverse environmental impacts will occur as a result of additional fills within jurisdictional waters and/or wetlands associated with this project. Our regulations, (Title 33 of the Code of Federal Regulations, Part 325), outline processing procedures for a Department of the Army (DA) permit. We are required to look at "all activities which the applicant plans to undertake which are reasonably related to the same project and for which a DA permit would be required... District Engineers should reject, as incomplete, any permit application 50' , which fails to comply with this requirement." In addition, pursuant to December 13, 1996 Federal Register, Final Notice of Issuance, Reissuance, and Modification of Nationwide Permits (61 FR 65874), General Condition 13(b)(3), notification to the District Engineer must include "any other NWP(s), regional general permit(s) or individual permit(s) used or intended to be used to authorize any part of the proposed project or any related activity." Mr. Eric Alsmeyer of my regulatory staff verbally explained our concerns to Mr. Paul during their telephone conversation of May 8, 1997. He outlined the fact that we have determined that the commercial development is reasonably related to the prcposed road. In-addition, based upon all information available to us at this time, we would have to consider the entire co-mmercial development to be a single and complete project, the segmentation of which would preclude reasonable and feasible alternatives for minimization and avoidance of wetland impacts for the portions requiring an individual permit. Based upon our conclusions, you are notified that the application you have submitted is nct complete and therefore cannot be processed at this time. _-ou are advised to re-evaluate the manner in which you have appli=d for our approval and to resubmit the applicaticn with all rec-i:ired information. We will comrence the processing of your application upon receipt of all complete and accurate informaticn regarding the additional jurisdicticnal activities associated with project. Please note that the fc;llowina information will likely apply to the proposed project, particularly if ycur complete application involves an individual DA permit. On Vovember 15, 1989, the Department of the Army and the U.S. Environmental Protection Agency signed a memorandum of agreement (MOA) establishing procedures to determine the type and level of mitigation necessary to cc=ly with the Clean Water Act, S-ection 404(b)(1) Guidelines. This MOA, which became effective on February 6, 1990, provides for (1) avoiding impacts to waters and wetlands through the selection of the least damaging, practicable alternative; (2) taking appropriate and practicable steps to minimize impacts to waters and wetlands; and (3) co=ensasing for any remaining unavoidable .pacts to the maximum extent 2 practicable and appropriate. To enable the Regulatory Branch to process a permit application in full compliance with this MOA, the following additional information should be provided with any application: a. Permits are available only for work dependent upon being located within an aquatic site and being the least environmentally damaging, practicable alternative. Information (alternatives analysis) regarding any other practicable alternatives, including upland alternatives, to the work for which you may apply must be provided, as well as justification that your selected plan is the least damaging to waters and/or wetland areas. b. It is necessary for you to have taken all appropriate and practicable steps to minimize wetland losses. Please indicate all that you have done, especially regarding development and modification of plans and proposed construction techniques, to minimize adverse impacts. C. The MOA then states that appropriate and practicable mitigation will be required for all unavoidable adverse impacts remaining after practicable minimization has been employed. Please outline your plan to mitigate for the projected, unavoidable losses of waters and/or wetlands, or provide information as to the absence of any such appropriate and practicable measures. Any questions or comments, as well as your complete Department of the Army permit package, should be addressed to Mr. Alsmeyer at telephone (919) 876-8441, extension 23. Sincerely, S. Kenneth Jolly Manager, Raleigh Regulatory Field Office 3 Copies Furnished: Mr. Nelson Paul ECPS, Inc. 2216 Dobbin Place Raleigh, North Carolina 27604-3878 Mr. John Dorney Division of Water Quality North Carolina Department of Environment, Health and Natural Resources 4401 Reedy Creek Road Raleigh, North Carolina 27607 4 State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Sirs: A74 "' V .41j- 10 ID EE F1 April 25, 1997 DWQ #970326 Wake County On 4 April 1997, you applied to the N.C. Division of Water Quality (DWQ) for a 401 Water Quality Certification to impact 360 linear feet of waters for your project (James Jackson Ave.) located at North Maynard Road and Cary Parkway in Wake County. Your project has been forwarded to Mr. Danny Smith (919) 571-4700 of DWQ Raleigh Regional Office for review. This review will likely require an on-site inspection prior to the approval, modification or denial of your project site. If you have sent additional information to the U.S. Army Corps of Engineers concerning this project, please be certain that our staff have copies of this material so we can use it in our process in making a decision. According to our preliminary, in-house review since you propose to disturb greater than 150 linear feet of streams, it is likely that compensatory mitigation will be required by DWQ for this project as described in 15A NCAC 2H .0506 (b)(6). Our Regional Office staff can make this decision during their site visit. If adequate mitigation is required but not provided, this project will likely have to be denied. If stream mitigation is needed, the wetland Restoration Program can satisfy this requirement at $125 per linear foot of stream. Otherwise you will have to identify a suitable mitigation site and develop an approvable mitigation plan. Also if a mitigation plan is required, we will place this project on hold until its receipt in our Central Office. Enclosed are materials describing compensatory mitigation requirements for this program. Please call me at 919-733-1786 to discuss these matters if necessary. Until a mitigation plan is provided, this application is considered to be incomplete and our processing time will not start We recommend that you not impact any wetlands or waters on your project site until a 401 Water Quality Certification has been issued from Raleigh, The issuance of a Corps of Engineers 404 Permit does not mean that your project can proceed. According to the Clean Water Act, the 404 Permit is not valid until a 401 Certification is also issued. If DWQ staff observe impacts which are not allowable, you will be required to remove the fill and restore the site to its original condition. I can be reached at 919-733-1786 if you have any questions about the 401 Certification process. Program cc: Raleigh DWQ Regional Office Central Files Nelson Paul; ECPS 970326.rovst Division of Water Quality - Environmental Sciences Branch Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 50% recycled/100/6 post consumer paper Arbor Investments, L.L.C. E?ROH??rac coMSVL rays "10 IrR"17- sfEC,( ".V7s Cary, North Carolina Nationwide Permit Application and Stream Mitigation Plan Arbor Investments, L.L.C. Property Cary, North Carolina ECPS, Inc. 2216 Dobbin Place Raleigh, North Carolina 27604 June, 1997 Document Number: 0006-001 DEM ID: ACTION ID: Nationwide Permit Requested (Provide Nationwide Permit #): JOINT FORM FOR Nationwide permits that require notification to the Corps of Engineers Nationwide permits that require application for Section 401 certification WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY P.O. Box 1890 Wilmington, NC 28402-1890 ATTN: CESAW-CO-E Telephone (919) 251-4511 WATER QUALITY PLANNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES P.O. Box 29535 Raleigh, NC 27626-0535 ATTN: MR. JOHN DORNEY Telephone (919) 733-5083 ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS. SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: Arbor Investments L L C 2. Owners Address: 1005 High House Road, Cary, North Carolina 27911 3. Owners Phone Number (Home): (919) 481-1212 (Work): (919) 481-3000 4. If Applicable: Agent's name or responsible corporate official, address, phone number. ECPS, Inc., C/0 Nelson G Paul 911A nn}lhin P1 ace Raleigh, North Carolina 27604 (919) 231-0636 5. Location of work (MUST ATTACH MAP). County: Wake Nearest Town or City: Car Specific Location (Include road numbers, landmarks, etc.): (see attached) 6. Name of Closest Stream/River. Coles Branch -- 7. River Basin: Neuse River/Crabtree Creek 8. Is this project located in a watershed classified as Trout, SA, HQW, ORW, W3 1, or -iv S II? YES [ ] NO EX ] 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO [x] If yes, explain. (not applicable) 10. Estimated total number of acres of waters of the U.S., including wetlands, located on project site: approximately 1 to 2 acres 11. Number of acres of waters of the U.S., including wetlands, impacted by the proposed project: Filled: (see attached table) Drained: Flooded: Excavated: Total Impacted: 12. Description of proposed work (Attach PLANS-8 12" X 11" drawings only): (see attached project plans) 13. Purpose of proposed work: (see attached) 14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures taken to minimize wetland impacts. (see attached) 15. You are required to contact the U.S. Fish, and Wildlife Service (USFWS) and/or National Marine Fisheries Service (NMFS) regarding the presence or any Federally listed or proposed for listing endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project. Have you done so? YES [X] NO [ ] RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS. 16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties in the permit area which may be affected by the proposed project? Have you done so? YES [X ] NO [ ] RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. 17. Additional information required by DEM: A. Wetland delineation map showing all wetlands, streams, and lakes on the property. B. If available, representative photograph of wetlands to be impacted by project. C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line. D. If a stormwater management plan is required for this project, attach copy. E. What is land use of surrounding property? - mixed residential and undeveloped F. If applicable, what is proposed method of sewage disposal? (not applicable) ENi:V7YliVi?IfENTifL CONSIXT.QNTS.I/IGDfFl7AI/TSPFCIK/STS ARBOR INVESTMENTS, L.L.C. COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION (Question/Answer from Joint Application Form) 5. The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property in the attached documentation). 11. The projected impacts of the Project will only involve "Waters or the United States" (herein afterwards referred to as "Waters') in the upper limits of unnamed streams. No wetlands are anticipated to be impacted by the proposed project. The impacts to Waters are described in Table 1 of the attached documentation. 12. (Please review the attached documentation.) 13. The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those typically provided by private commercial developers to meet the needs of private citizens and private businesses. 14. No wetlands are to be impacted by the proposed Project. Page - 1 of 1 e. c ENYlHONA/ENTifI CONSIJLT.QNTS.LVOFfI4AIlTSffCLtL/STS TABLE OF CONTENTS Page JOINT APPLICATION FORM ...................................................................... 1.0 INTRODUCTION AND PROJECT PURPOSE .............................. 2 2.0 NOTIFICATION REQUIREMENTS 2.1 Location of Work and Property Description ......................... 4 2.2 Description of Work ................................................................ 4 3.0 DISCUSSION OF ALTERNATIVES TO THE PROPOSAL........ 8 4.0 PLAN TO MITIGATE FOR STREAM IMPACTS 4.1 Stream Characterization ......................................................... 10 4.2 Stream Mitigation Site Description ........................................ 10 4.3 Stream Mitigation Concept ..................................................... 10 4.3 Stream Mitigation Site Modifications ...................................... 11 5.0 STREAM MITIGATION REMEDIATION AND SECURITY 5.1 Mitigation Monitoring .............................................................. 12 5.2 Mitigation Area Remediation ................................................. 12 5.3 Mitigation Security .................................................................. 13 TABLES Table 1 - Overall Project Impacts ................................................................ 6 APPENDIX ................................................................................................... 14 Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property Figure 2 - Index Map, Arbor Investments, L.L.C. Property Figure 3 - Area 1 Detail, James Jackson Avenue Extension Figure 4 - Area 2 Detail, James Jackson Avenue Extension Figure 5 - Areas 3 & 4, Industrial Development Project Figure 6 - Area 5, Residential Development Project Figure 7 - Area 6, Residential Development Project Figure 8 - Areas 7 & 9, Commercial Retail Project Figure 9 -Areas 8 & 10, Commercial Retail Project Figure 10 - Typical Cross Sections, James Jackson Avenue Extension Figure 11 - Site Map, Stream Mitigation Project Figure 12 - Construction Features, Stream Mitigation Project Figure 13 - Construction Features, Stream Mitigation Project Correspondence with Withers & Ravenel Regarding Stream Channel Design Present Agency Correspondence Previous Agency Correspondence ECPS Project No. 0006-001 Page - 1 c ? ?7 IF ENWNVAW,0VrAL CONSULTiQNTSAAODFfF?AI/TSPtCL4L/STS 1.0 INTRODUCTION AND PROJECT PURPOSE The purpose of this document is to propose a plan for compensatory mitigation of stream impacts associated with the development of the Arbor Investments, L.L.C. property located in Cary, North Carolina (herein afterwards referred to as the 'Property"). The proximity of the Town of Cary to major employment, transportation, recreation and educational facilities makes it one of the fastest growing cities in the State of North Carolina. The Town of Cary is dependent on private development initiatives to meet the residential, retail and recreational demands of the growing population. The Town of Cary implements strict zoning restrictions that control the engineering and aesthetics of this growth in a planned and thoughtful manner. Arbor Investments, L.L.C., a private development initiative, is proposing to meet some of the demand pressures of the growing residential and commercial sectors by the developing the Property with a diversity of uses, including light industrial, multi-family residential, single- family residential and commercial uses. The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those typically provided by private commercial developers to meet the needs of private citizens and private businesses. The intention of the stream mitigation outlined by this plan is to construct a substitute stream channel that will compensate for the stream channels segments that will be altered by project activities conducted under Nationwide Permit (NWP) 26. Regional conditions imposed by the U.S. Army Corps of Engineers, Wilmington District Regulatory Branch, dated May 15, 1997, require applicants provide notification to the Wilmington District Engineer and receive written approval prior to performing work that would impact more than 150 feet of a stream. Notification will include the location of work, a description of work, a discussion of alternatives to working in the stream and why alternatives were not selected, and a plan to mitigate for all avoidable adverse impacts to more than 150 linear feet of the stream. ECPS Project No. 0006-001 Page - 2 E/YYl/40A71/FJVTitL CO/VSULTiQM7S?NOgR{dTSFfG'lrfL/STS This plan for stream mitigation is to construct 350 of new stream channel for the 500 feet of stream channel proposed to be altered as required by the federal regional guidelines that pertain to NWP 26. Other impacts described in this stream mitigation plan do not require mitigation but are provided for the sake of completeness. Adverse impacts of the other impacts of the project (NWP 14 activities) are considered to be no more than minimal and that the aquatic environment will be protected. This plan is to provide information for evaluation of the proposed stream mitigation by the natural resource agencies and is to also serve as a guidance document for future detailed engineering, construction and monitoring of the created stream segment. ECPS Project No. 0006-001 Page - 3 ,l ENYIAON,NFNTitL CONSIALTd/YTS.LVDI°FAAdTSfi'CLAL/STS 2.0 NOTIFICATION REQUIREMENTS 2.1 Location of Work and Property Description The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property). The Property is typical of properties in the Piedmont geographical province. The Property is moderately eroded and dissected with a significant drainage system. Vegetation consists of mature hardwoods, except in the central portion of the property, north of Coles Branch, and in portions of the floodplain south of Coles Branch. Here the Property is vegetated with young pines and mixed hardwoods. The WKIX antennae site is grassed. Overall, development of the Property will entail relatively minor environmental impacts. Coles Branch is a significant environmental feature of the Property. Coles Branch traverses the Property from the east to west and consists of a narrow perennial stream and flood plain. The Town of Cary restricts development within floodplains and no construction or development activities (with the exception of this proposed stream mitigation) are proposed by Arbor Investments, L.L.C. within the Coles Branch floodplain. The waters and wetlands of the site have been delineated and surveyed. The waters and wetland locations have been verified by the U.S. Army Corps of Engineers. Wetlands and waters on the Property account for an insignificant amount of the total land area. The project avoids wetland impacts entirely. 2.2 Description of Work The project will involve the construction of the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. The impacts of the project are to 'Waters of the United States" primarily from several minor road crossings that will access upland areas located on either side of several intermittent tributaries of Coles Branch. Within the perimeter of the commercial ECPS Project No. 0006-001 Page - 4 ENWRVW.NENTifL CONSI/LTi?MS.QNOR?/V1?6?TSPfCI•fL/STS development, portions of the intermittent tributaries will be displaced for parking lot construction. The location of the project impacts relative to the Property are illustrated in Figure 2. More detail of the proposed development at each location is illustrated in Figures 3 through 10. A summary of the project impacts are indicated in Table 1. It is anticipated that approximately 5708 square feet (0.131 acres) of waters will be altered by the proposed project activities. As required under NWP 26 regional conditions, of the 500 feet of stream channel proposed to be altered, 350 feet of new stream channel is proposed to be constructed. ECPS Project No. 0006-001 Page - 5 2-AwvaAwE.vr is coosucr.Lvrs.ZVOgRIarsP c4LIssrs PROJECT SEGMENT: JAMES JACKSON AVENUE CROSSING DISTANCE AREA (FEET) 1 4 2 4 TOTALS 8 (ACRES) CROSSING AREA WIDTH IMPACTED (FEET) (SQUARE FEET) 175 700 185 740 360 1440 0.033 PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIX ANTENNAE 3 2 125 250 4 2 180 360 TOTALS 4 305 610 (ACRES) 0.014 PROJECT SEGMENT: RESIDENTIAL DEVELOPMENT SOUTH OF COLES BRANCH 5 5.5 6 1.0 TOTALS 6.5 (ACRES) 180 990 180 180 360 1170 0.027 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE 7 4 180 720 8 1.2 180 216 TOTALS 5.2 360 936 (ACRES) 0.021 GRAND TOTALS: 23.7 4156 (ACRES) 0.095 ECPS Project No. 0006-001 Page - 6 _ I Z"W0NA/E/VrAV CONS".rQN7NAOWfW~rSPFCL4L/STS PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUT H OF JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 9 4 340 1360 10 1.2 160 192 TOTALS 500 1552 (ACRES) 0.036 TOTAL AREA IMPACTS (NWP 14 & NWP 26) 5708 (ACRES) 0.131 ECPS Project No. 0006-001 Page - 7 .-*WNVAW05FNTsfL CONSULT.QN7T.INOPFRAI/TSPFCl?L/STS 3.0 DISCUSSION OF ALTERNATIVES TO THE PROPOSAL The selection of this Property consisted of a process involving the evaluation and consideration of various engineering, economic and environmental factors. The principal controlling factors considered in proposing the utilization of the Property for the proposed project activities are as follows: Ownership. The Property is under the ownership of Arbor Investments, L.L.C. The Property was purchased for development purposes. The proposed impacts are the minimal necessary for economical development of the Property in accordance with the owner's investment-backed expectations. Location. The Property is located within the Town of Cary adjacent to developed tracts. The Property is proposed to be traversed by major transportation arteries. A major thoroughfare (Cary Parkway extension) has been proposed and is under consideration for construction that will border the western portion of the Property. The Property itself will be traversed by James Jackson Avenue (included as a portion of the proposed development for the Property in this application) which will connect the proposed Cary Parkway extension with North Maynard Road. Each of the public thoroughfares mentioned are part of the approved thoroughfare plan for the Town of Cary, which was approved by the Town and the NC Department of Transportation. Availability of Public Utilities. Water, sewer and natural gas are available at the Property. Previous public investment was made in the installation of these services in logical anticipation of future site development. Since the stream impacts proposed under NWP 26 at the commercial retail project south of James Jackson Avenue are the only stream impacts being mitigated for in this plan, this alternatives discussion will focus on the stream impacts surrounding this aspect of the project. The , stream impacts of the commercial retail project consist primarily of fills for parking lot construction. Alternative parking lot configurations at the commercial retail project have been considered and where feasible, modifications have been made to the proposed project design. The use of bridges for the parking lots was judged to be impractical and economically unfeasible. The use of retaining walls to contain ECPS Project No. 0006-001 Page - 8 .-"W0NA/E/VTAL CONSUL TAW7.VAAVPEf7WrMW=U1S7S parking lot side-slope fills was judged to create a safety issue, in addition to being impractical and economically unfeasible for both initial construction and long-term maintenance. The "no-build" alternative was also considered and rejected as it would not meet the project purpose. Additionally, the "no-build" altemative would not be in the public interest because the location of the project has the potential of serving a large population base with needed services (i.e. food, pharmacy, offices, etc.). There are no alternative sites for the commercial retail project that have the ownership, zoning, location or the availability of public services that would meet the project purpose and have significantly less impacts. The design of the proposed commercial retail project minimizes water and wetland impacts to the maximum extent possible while still meeting the project purpose. The following section describes the measures that will be employed in providing compensatory mitigation for the intermittent stream impacts. ECPS Project No. 0006-001 Page - 9 ENYA40AWFNTAL CONSIJLT.QNTS.LVOPL°RIdTSPE'CYRL/STS 4.0 PLAN TO MITIGATE FOR STREAM IMPACTS 4.1 Stream Characterization Intermittent streams on the Property are generally characterized by shallow, narrow, eroded channels approximately three (3) feet deep, with a base of approximately two (2) feet and a top width of approximately four (4) feet. The stream channels are relatively straight in plan view and have occasional riffle and pool sequences within the stream beds. Some stream segments appeared to be relic agricultural ditches due to their extreme linear nature and lack of any definable riffle and pool sections. The stream banks are typically stabilized by a growth of mixed hardwoods and pines that vary in age from shrubs and saplings to mature trees. 4.2 Stream Mitigation Site Description The stream mitigation site (see Figure 11, Site Map, Stream Mitigation Project) is located within the floodplain of Coles Branch. The site is vegetated with shrub and sapling species that include mixed hardwoods and pines. Soils are alluvial sediment deposits from Coles Branch. 4.3 Stream Mitigation Concept The stream mitigation concept will involve the construction of an intermittent stream channel supplied with stormwater during rainfall events from the adjacent commercial retail project. The constructed stream channel will roughly parallel Coles Branch, in order to prevent the discharge of sediment into the constructed stream during high-flow events. The project construction sequence will minimize disturbance to vegetation as much as possible in gaining access to the site by hand clearing or utilizing a mower to clear the proposed stream corridor. Material from the channel excavation will be widely distributed to allow secondary growth of the indigenous vegetation from the existing roots and to reduce the possibility of the spoil material eroding back into the constructed stream channel. Rock material from offsite consisting of a mixture of rock sizes (2-18 inch) will be used to construct the riffle and pool sequences in accordance with state ECPS Project No. 0006-001 Page - 10 ARM ENYA40AG/ENTifL CONSULT.QNTS.?I1®PFRIdTSPFCGfL/S73' guidelines. The stream development will be monitored after completion for vegetation growth and sedimentation, 4.4 Stream Mitigation Site Modifications The proposed site modifications will begin with a sediment basin at the upper end of the proposed stream channel construction. The sediment basin is to be installed as part of the site clearing operations for the proposed retail center. The sediment basin will be designed to remain after construction of the proposed retail center is completed and its discharge will form the upper-most point of the proposed stream mitigation. Stormwater from the buildings and parking areas of the westernmost portion of.the shopping center will provide intermittent flow to the constructed stream. The drainage area is calculated to be 3.2 acres. Runoff calculations have been prepared by Withers & Ravenel and are included in the Appendix of this report. The proposed site modifications (see Figures 12 and 13) for the constructed stream channel will include a construction sequence that will minimize impacts to existing vegetation and unnecessary disruption to soils. This will be accomplished by either hand clearing existing vegetation or utilizing a mower, as site conditions allow, in the mitigation area. Clearing of the vegetation will involve cutting the existing plants to the roots but leaving the roots intact. Cuttings will be piled in portions of the cleared area away from the proposed stream route. Once the stream channel corridor is cleared of vegetation, the site will be accessed with rubber-tired equipment, such as a backhoe or a bobcat. The equipment will excavate the channel in accordance with the sizes indicated in Figure 13. Spoil from the excavation will be placed in alternate piles on either side of the channel excavation and leveled as much as possible with the equipment bucket. Every attempt will be made to spread the spoil from the excavation thin enough so the indigenous vegetation will redevelop. Following the excavation, the pool and riffle breaks will be installed in accordance with the specifications outlined in Figure 13. The material utilized to form the pool and riffle steps will be brought into the site utilizing rubber-tired equipment and positioned by hand. ECPS Project No. 0006-001 Page - 11 E,wi?vrart co.KSUCrrvrs.tnmg,5uarsr?clacis>s 5.0 MITIGATION REMEDIATION AND SECURITY 5.1 Mitigation Monitoring The constructed stream segment will be monitored upon completion for a period of three years for vegetation establishment (bank stabilization) and sedimentation levels. Regular inspections of the site will be conducted by a consultant hired by Arbor Investments, L.L.C. on a yearly basis and a brief letter will be provided to the U.S. Army Corps of Engineers regarding the inspection observations. The inspection letter will provide information regarding the height of the previously-disturbed vegetation and will provide information regarding the level of sedimentation or down-cutting taking place in the constructed stream. Any other information deemed important by the consultant will be provided in this letter also. 5.2 Mitigation Area Remediation Mitigation monitoring letters described in Section 5.1 will include suggested remedial measures if the inspection indicates such measures may be required. If it is noted the stream mitigation is performing unsatisfactorily, the consultant and the Arbor Investments, L.L.C. managers will provide a best professional judgment regarding the reason(s) for the unsatisfactory performance. The consultant and the Arbor Investments, L.L.C. managers may also suggest remedial measures to correct the deficiency in the mitigation area. Remedial measures will be evaluated in consideration of the performance standards outlined in Section 5.1. Where the mitigation monitoring reports identify no deficiencies in the mitigation area performance and include no recommendations for remedial measures, no response from the principal state and federal wetland resource authorities within 30 days will be considered acceptance of the site progress for the pertinent monitoring interval. In the event the mitigation monitoring report includes a recommendation for remedial measures, the principal state and federal wetland resource authorities will provide concurrence or an independent recommendation within 30 days of submittal of the mitigation monitoring report. ECPS Project No. 0006-001 Page - 12 ,1 . ENKNIOV"ZO rAf CONSULTilNTS.LYOPF/7///TSPLC4fL/S7S 5.3 Mitigation Security The mitigation site is currently owned by Arbor Investments, L.L.C.. Should the surrounding properties be sold in the future, Arbor Investments, L.L.C. will retain a maintenance easement on the site for the duration of the mitigation monitoring period. Arbor Investments, L.L.C. will convey, as part of the property parcel, the stream mitigation and the buffer zone area. At the end of the monitoring period maintenance of this stream mitigation will convey to the buyers. ECPS Project No. 0006-001 Page - 13 ENMACUOIIE7YTAL CO/YSULTiINTS.?NOPFl7AI/TSJoFCL4L/STS APPENDIX ECPS Project No. 0006-001 Page - 14 345 r • ???" /' ?? ' (i-"i -- ?-? a ? Q O ? ?co0 Ji wake' ? v • , ! I d? 100 SOURCE: CARY, NC 7-112 MINUTE QUAD FIGURE 1 SITE LOCATION MAP ARBOR INVESTMENTS, L.L.C. ENMAONAIENT.dL co?vs'uc ra?vrs PROPERTY ?o fL?H,{/rr r,.loose.vsc,n ,w[E?ocrc wr t/!N CARY, NORTH CAROUNA .rr?c?rrrSTS Il/J?'ll/-wcx iNn?M nr I I I i -?so r r (NOT TO SCALE) FIGURE 2 INDEX MAP EM7J70A?/ENT.QL ARBOR INVESTMENTS, L.L.C. MAW"MWN PROPERTY .Awla FL?i7M/T rrr? oaeisw??rwr .?,. CARY, NORTH CAROLINA N 'v,?:TLAtios \ LIMITS S)LT-- ?- FENCE 1 \ 90 1 ?a S:LT FENCE; •? ti 1 1 ,1 I ;?I I? ' T NOTE: INFORMATION ON THES ? I ?^-hjORRtSVI t, HAS EITHER BEEN COPIED OR INTER RETIt ETJ 1 1 I I FROM MAPS PREPARED BY WITHERS OF CARY, NORTH CAROLINA. INFORW ON PROVIDED IN THIS APPLICATION It; l ;?? ??^`% }•I \ `' SCHEMATIC IN NATURE AND I t4 UTILIZED FOR CONSTRU00N OUR OSE ?i r S SCALE: 1" a 100' FIGURE 3 AREA 1 DETAIL JAMES JACKSON °"'sU`T`'"Ts AVENUE EXTENSION ?o IcrRAWIr IQAW-.xw,c F/F" ARBOR INVESTMENTS, L.L.C. s?cutisrs ? CARY, NORTH CAROLINA ?? 1'1 1 1 I o rr, i I EXISTING 48 C?-IP TO BE REw0vED FLpp?..\ if SILT FEt.CE 4 7 / o Sl-OJ _ -? /}HOO - T WETLANDS LIMITS i /, • 1 i rl? j %l; N i NOTE: INFORMATION ON THESE DRAWINGS HAS EITHER BEEN COPIED OR INTERPRETED FROM MAPS PREPARED BY WITHERS & RAVENEL •` ( ct? I OF CARY, NORTH CAROLINA. INFORMATION PROVIDED IN THIS APPLICATION IS ?l SCHEMATIC IN NATURE AND IS NOT TO BE 1 I,y UTILIZED FOR CONSTRUCTION PURPOSES. SCALE: 1" =100' FIGURE 4 AREA 2 DETAIL EiYNf70NA/ENTitL JAMES JACKSON Aobv T.QNIS AVENUE EXTENSION .QNO T A?.'c`EOd1?'.cr ,`use ARBOR INVESTMENTS, L.L.C. sscutisrs ?rz»?IrX CARY, NORTH CAROLINA Ma'w 1 ? ? _ ? .' 4sr - - - - --- - - - - - - - - ' ? ARE1? \ \ 1 ? / ` I I ? \ 1 0 1 / I t ? 1 1 1 . \ 1 w ? i Ir J scAj.m V "r FIGURE 5 AREAS 3 & 4 INDUSTRIAL DEVELOPMENT PROJECT icEA ?,....WARBOR INVESTMENTS, LLC. OrAr"rwm CARY, NORTH CAROLINA i?-'..rte- \ \` L- •S 1 ? .. I ` 40.61 t • ? tom!: ? 1 ?` `~? \' ?'• ` 1 ? `? .::`,• \ ? ?? ?. ? •,?;,• ? ,''.,' '•\\. ?? ? ter,,; •' r ` ( 1 SCALE: I" x IW FIGURE 6 AREA 5 RESIDENTIAL DEVELOPMENT PROJECT CONSUL TAA?S .4N0 PrMffr rr?oo?rr? •ts s?cuusrs `;. ARBOR INVESTMENTS, L.L.C. +w---- CARY, NORTH CAROLINA I ? 1 EXISTING TREES ?"' ?- I '/'.j o i CC u SCALE: I"= 100' EAWRONA/EWrAf CONSUL MoV S ANO RERA//T rrrrvoae.vsr ?cE iv?te?cn[i.c riry sjWCl us*7S prjy.-W"jw FIGURE 7 AREA 6 RESIDENTIAL DEVELOPMENT PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA 1!(4ao -- -- - ? ? `•t t ? ?t ? fit. '?. ? ? ? ?, . joco a it ? /may !f; SCALE: 1' = 100' EAlW?0NA4FNrtC COMB" TAN7S ArVO PLffblwT "rro tammoyICr .O.r I-Izn Aa. r/i SP!''CGtL/S7T Pr?ym?rx FIGURE 8 AREAS 7 & 9 COMMERCIAL RETAIL PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA r? RESID S TO r, I 6-Z s Z 44 SPACE 5 7 rb AREA 10 ?I a' D?ltt (?/ 3 AREA uj ? Q T r/ Q n ? r r VIE i. ? ? ^ ? r _ ?i`N\ tii-- - ? -'- -.'o ? ? ,ter., L -• - ? .. - .. SCALE: 1" a 100' ENWRONA4ENT.4L CONSUL T.QNTS rW0 9 XIX" ?CpMn' RUFR-• IZ7r.K AV Ilitl s?ccaLisrs /!,?'I1.,wrss I r v --? <L-.(n FI(7I)UIIN;- Al L9 ur urrE.3 Y.4 9 olr:IraL C3 rr'C??;:?nnrrr rr;nv:nF,r err nrrit r •:rur::•r s FIGURE 9 AREAS 8 & 10 COMMERCIAL RETAIL PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA NOTE. INFORMATION REGARD04G CULVERTS AND FILL HAS BEEN INTERPRE'ED FROM PROPOSED ROADWAY A MAP PREPARED BY WITHERS 3 RAVENS / OF CARY. CHE% NORTH CAROLKA- INFORMATION IS IS SC?iEMAT1C IN NATURE AND IS IS NOT NOT TO O BE UTII = FOR CONSTRUCTION PURPOSES ?/%AA/ j ??V?VA%VAA/ /\ x /\\i EARrrEN Flu. V\iVA/ \. 0 5M GROUND CONTOURS 48 INCH CULVERT TYPICAL CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 1 (N.T.S.) EARTHENnLL EKLS7M GROUND 15 INCH CULVERT CONTOURS TYPICAL CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 2 (N.T.S.) SCALE: (VARIES) EA??ll70AU/E7VT.fL CONSUL M^7S A AV A)EWA//T .ac wr ra.. SlIrCMISTS 'w"w"A-wx FIGURE 10 TYPICAL CROSS SECTIONS JAMES JACKSON AVENUE EXTENSION ARBOR R ESTMENTS, L.L.C. CARY, NORTH CAROUNA j _Z..._ RcTa aco p\ W! TH :r PROJT SRE L - - \\ \\ _ ----------------------------- V lrI -'\?? ?y? ------------------------ - CZ I' G. r ' ? o \ z% (N.T.S.) E&W OMMEA74Z CONSac rays AAV /P F~fr SFi?-C/aL/STS pr?rsrwrx FIGURE 11 SITE MAP STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA CLEARING LIMITS ,r TO'. CF BANK - \ CHANNEL +l- 36 FEET Y (N.T.S.) EN YllL O A 4 f ? 0 EI YT. Q L CONSULTsINTS AND FJFiU//T vsrracesrsr..c? At[l.GL AC 1/if/ .S.4rcAdusTS llnrl?l /IfX MURE 12 CONSTRUCTION FEATURES STREAM MITIGATION PROJECT ARBOR MIESTMENTS, L.L.C. CARY, NORTH CAROLINA +?- 6' CLEARING LAMTS - SPOIL PLACSAENT PLAN VIEW Or CONSTRUCTION FEATURES (N.T.S.) G (TYPICAL) 3- (TYPICAL) SEGMENT v TOP OF BANK DAM SEGMENT STREAM MITIGATION PLAN VIEW (N.T.S.) DAM SEGMENT POOL SEGMENT TOP OF BANK V(TYPICAL) - Y (TYPICAL) 15 TO 21 FEET EXCAVATION LIMITS STREAM MITIGATION PROFILE VIEW (N.T.S.) (FU S.) -REEF EA A I'! I Fi 1 DA 9 4 IENTi Q L CONSUL r"rs AAW PLcR40V7 " rD mmlw AlAcr A w"79219 AC F/N" SFL7CACL/STS /sn? rr?rx FIGURE 13 CONSTRUCTION FEATURES STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA WITHERS & RAVENEL, Engineering & Surveying, Inc. 111 MacKenan Drive, Cary N. C. 27511.919/469-3340•FAX:919/467--6008 June 3, 1997 Arbor Investments, LLC ATTN: Randy Smith 1005 High House Road Cary, NC 27513 RE: James Jackson Shopping Center Wetlands Mitigation Dear Randy: Hamilton E Withers, P. Samuel F. Ravene4 P. James E CanfeI4 P. LoJtee G. Smith, P. Jimmy E Bass, RL 3lichael E Dickerson, RL This letter is in reference to the design of the channel mitigation to compensate for wetlands impacts at the reference site. Our design criteria was based on Nelson Paul's memo to Pony, dated 5/22/97. Summarizing our design parameters, we computed a 2 year peak discharge of 15 CFS for a 3.2 acre drainage area assuming a runoff curve number cf 95. Our worm distribution was the SCS type 2 rainfall distribution with an antecedent moismre condition 2. We designed the channel to just overflow during the lino 1 ear storm as opposed to the typical design which would put freeboard to prevent overflowing during the specified design storm. The intent here is to have "out of bank" flow and to crew:` a low velocity meandering channel which will improve water quality and mitigate the loss of wetlands. I have assumed a design depth of 1' for three different channel slopes allowing for bottom with to vary with the slope. You will want to do a preliminary layout to df--ermine what slope to excavate the channel on. The following will hold true for a depth of 1' and a m=:rn s "n- cr .030 and 2.5:1 side slop: DEPTH SLOPE(%) BOTTOM WIDTH (FEET) 1.0 0.5 3.1 1.0 1.0 1.8 1.0 2.0 0.8 The channel should be lined with "Enkamat" 7020 to allow stabilization with vegetation. The vegetation should be a wetlands variety to be selected by Nelson Paul. If the depth I am showing does not work out, please notify me and I will generate some additional channel sections for other depths or slopes. Sincerely, aPE cc Nelson Paul j:',eng-sur prof X94\ 1051060397. rs Project J. JACKSON SHOPPING CENTER County WAKE State: NC Subtitle: CHANNEL/WETLANDS MITIGATION Data: Drainage Area 3.2 Acres Runoff Curve Number 95 Time of Concentration: 0.10 Hours Rainfall Type II Pond and Swamp Area NONE Storm Number -------------------- Frequency (yrs) 24-Hr Rainfall (in) Ia/P Ratio Used Runoff (in) Unit Peak Discharge (cfs/acre/in) Pond and Swamp Factc 0.0t Ponds Used -------------------- Peak Discharge (cfs) .................... 1 2 2 10 3.6 5.6 0.03 0.02 0._0 0.10 3.04 5.01 1.578 11.578 ri 1.00 1 1.00 15 25 CnAPHICAL PFA-K DISCHARGE ?'.E:'HCD Version 2.00 User: SFR Cate: 06-03-37 Checked: Date: Trapezoidal Channel Analysis & Design Open Channel - Uniform flow . Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. Right Side Slope. Manning's n...... Channel Slope.... Depth............ Discharge........ 2.50:1 MY 2.50:1 MY 0.030 0.0100 ft/ft 1.00 ft 15.00 cfs Computed Results: Bottom Width.... Velocity......... Flow Pea........ Flow Top Width.. . Wetted Perimeter. Critical Depth... Critical Slope... Froude Number.... 1.77 ft 3.51 fps 4.27 sf 6.77 ft 7.16 ft 0.88 ft 0.0170 ft/ft 0.78 (flow Subcri ti cal) Open Channel Flow Module, version 3.12 (c) 1990 Haesta^ Methols, inc. * 37 Brookside Rd * Waterbury, Ct 06708 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. Right Side Slope. Manning's n...... Channel Slope.... Depth............ Discharge........ 2.50:1 (H:V) 2.50:1 (H: V) 0.030 0.0200 ft/ft 1.00 ft 15.00 cfs Computed Results: Bottom Width.... 0.77 ft Velocity......... 4.59 fps Flow Area........ 3.27 sf Flow Top Width... 5.77 ft Wetted Perimeter. 6.15 ft Critical Depth... 1.03 ft Critical Slope... 0.01 71 ft/ft Froude Number.... 1.08 (flcw is Supercritical) Open Channel Flcw Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. Right Side Slope. Manning's n...... Channel Slope.... Depth............ Discharge........ 2.50:1 (H:V) 2.50:1 (H:V) 0.030 0.0050 ft/ft 1.00 ft 15.00 cfs Computed Results: Bottom Width.... Velocity......... Flow Area........ Flow Top Width... Wetted Perimeter. Critical Depth... Critical Slope... Froude Number.... 3.14 ft 2.66 fps 5.64 sf 8.14 ft 8.53 ft 0.73 ft 0.0171 ft/ft 0.56 (flow is Subcr_t'_cal) Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, i c. * 37 Brookside Rd r Water'lury, Ct 06708 VAMMU COVER MEET To: Tony Withers Company: Withers & Ravenel At: 4-67-6008 PMM (Nelson C- Paul Eaz. 919-291-0636 Date: 5/2 2/'97 Company: ECK, Inc. Voice: 919-221-0626 Time- 10:00PM Pages Including Cover:l COMMINTS: ony,1 have dwrW with the COE regarding the &dance on stream mitigation. Ken Jolly indicated the state lde3nes would be fine for nor in their consideration of the stream mitigation plan. State guidelines it dlcate the stream channel cross-section should be designed to carry no more than the 2-year, 24 !tics storm Pool to riffle sequence should be spaced at 5 to 7 times the channel width and pools are generaify two times deeper than the riTa area. In order to prerent the increased Lost of streambank restoration (and potential failure of the mitigation), prior to constructing the stream mitigation, the area should be mowed or Weved by han& h may be tint the caashucted stream efunnel could be plowed Into the substrate or either - eked w!tfi a Kbber-tired backhoe. We may need to discm where and how the fill Is to be placed if the latte' alternative Is u fthad. State guidance !ndieates the use of rlprap should be minimized. C13 rhm if you hive any questions. Westin. .A TM &TD WTXAW CONTAW J1i TM FAX S INTENDED P OR THE MUSK LIRE OP THE ADDRESSEE AND MAY COWTTAIINN MUPIG TM AAr4CR PRMUM INMRSIATiON. X YOU ARE NOT THE INTENDED RECIPIENT, YOU ARE HEREBY NOTMED THAT A8Y MW CC URUKU 7" Of THS CUIMUI UTM S STRICTLY PROWKU D. 117 TM M WAS SENT TO YOU 3 1W'R- PLMz' 3-YEAD!ATEY MOTI LY IS AT THE T rE - CNE WWR LVID. THANK YOU FOR YOUR COOP91ATIO" - L? MAY-29-1997 09:22 =<8; ECPS. Inc. f r?- r .µ (n Q ?\ W Ij I ?y. r J . .. (^ •..,, 1? ?? ?` •? \, 4 `••1 ? `r?; i!;? f p ( i. i . ?, !,!il.? i ??f? _'i? !?1i I?? i ?,j??r rkJ .' ? ? ? , ? ? I 1 f' li It ?' 1 ??I?I, j ? ??, ? ? i, ! !?+ State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director ,) C) FE F=1 July 17, 1997 Wake County DWQ Project # 970326 APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS Mr. Randy Smith Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Mr. Smith: You have our approval, in accordance with the attached conditions and those listed below, to place fill material in 0.033 acres of waters (360 linear feet) for the purpose of constructing a road crossing at James Jackson Road, as you described in your application dated 7 April 1997 (revised plan received 18 June 1997). After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 3103. This certification allows you to use Nationwide Permit Number 14 when it is issued by the Corps of Engineers. This approval is only valid for the purpose and design that you described in your application except as modified below. If you change your project, you must notify us and you may be required to send us a new application. If total wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 211.0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions listed below. The culverts under the roads shall be countersunk to allow aquatic life movement. Applicant is reminded that a stormwater management plan will eventually be needed for the adjoining parcels if the area is developed for commercial or industrial use. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and Water Supply Watershed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Certification. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733-1786. Attachment cc: Wilmington District Corps of Engineers Corps of Engineers Raleigh Feld Office Raleigh DWQ Regional Office Mr. John Dorney Central Files Nelson Paul; ECPS Since ly, t970326.1tr Division of Water Quality • Environmental Sciences Branch Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 500% recycled/100% post consumer paper xc ?'F g? ?, t J,} : ;Y'4rw;yp r t 4 i i t 'i 1 ro e r i. ,t :; ?« r ti ?- '.Y it r. a 'a« V .. n Ci g ep t y t ,? -r °i I r f' ,,,, ) 7 c 1, ! i S ?r ?Y r? 7 x 1 e ? 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X Y 0 n r .:t ..Y. ?` 'e 1 D ;r' t f i.,, ,: 3 .? :. fT, LL? u DEM ID: ACTION ID: Nationwide Permit Requested (Provide Nationwide Permit #): JOINT FORM FOR Nationwide permits that require notification to the Corps of Engineers Nationwide permits that require application for Section 401 certification WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY P.O. Box 1890 Wilmington, NC 28402-1890 ATTN: CESAW-CO-E Telephone (919) 251-4511 WATER QUALITY PLANNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES P.O. Box 29535 Raleigh, NC 27626-0535 ATTN: MR. JOHN DORNEY Telephone (919) 733-5083 S: m_ C -n L n? ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS. SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: Arbor-Investments, L• C 2. Owners Address: 1005 High House Road, Cary, North Carolina 27513 3. Owners Phone Number (Home): (919) 481-1212 (Work): (919) 481-3000 4. If Applicable: Agent's name or responsible corporate official, address, phone number. ECPS, Inc., C/0 Nelson G. Paul 2216 Dobbin Place Raleigh, North Carolina 27604 (919) 231-0636 5. Location of work (MUST ATTACH MAP). County: Wake Nearest Town or City: Cary Specific Location (Include road numbers, landmarks, etc.): wee attached) 6. Name of Closest Stream/River: Coles Branch 7. River Basin: Neuse River/Crabtree Creek 8. Is this project located in a watershed classified as Trout, SA, HQW, ORW, W3 1, or-;V'3 II? YES [ ] NO k] 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO [g] If yes, explain. (not applicable) 10. Estimated total number of acres of waters of the U.S., including wetlands, located on project site: avnroximately 1 to 2 acres 11. Number of acres of waters of the U.S., including wetlands, impacted by the proposed project: Filled: (see attached table) Drained: Flooded: Excavated: Total Impacted: ' 12. Description of proposed work (Attach PLANS-8 1/2" X 11" drawings only): (see attached project plans) ' 13. Purpose of proposed work: (see attached) ' 14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures taken to minimize wetland impacts. ' (see attached) 15. You are required to contac: the U.S. Fish. and Wildlife Service (USFWS) and/or National Marine Fisheries Service ' (NMFS) regarding the presence. or any Federally listed or proposed for listing endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project. Have you done so? YES [X] NO [ ] RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS. ' 16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties in the permit area which may be affected by the proposed project? Have you done so? YES [X ] NO [ ] RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. 17. Additional information required by DEM: A. Wetland delineation map showing all wetlands, streams, and lakes on the property. B. If available, representative photograph of wetlands to be impacted by project. C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line. D. If a stormwater management plan is required for this project, attach copy. E. What is land use of surrounding property? mixed residential and undeveloped F. If applicable, what is proposed method of sewage disposal? (not applicable) I I ENl9HONMENTitL CPNSG4LTi4/VTSsLVOPLHM/TSPLCWL/STS ARBOR INVESTMENTS, L.L.C. COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION (Question/Answer from Joint Application Form) 5. The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property in the attached documentation). 11. The projected impacts of the Project will only involve "Waters or the United States" (herein afterwards referred to as "Waters") in the upper limits of unnamed streams. No wetlands are anticipated to be impacted by the proposed project. The impacts to Waters are described in Table 1 of the attached documentation. 12. (Please review the attached documentation.) 13. The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those typically provided by private commercial developers to meet the needs of private citizens and private businesses. 14. No wetlands are to be impacted by the proposed Project. 1 Page - 1 of 1 ENFIHONNENTAL CONS(/LI.4NTSRNQFlRN/TSPFCLQ[/S7S TABLE OF CONTENTS L Page JOINT APPLICATION FORM ...................................................................... 1.0 INTRODUCTION AND PROJECT PURPOSE .............................. 2 2.0 NOTIFICATION REQUIREMENTS 2.1 Location of Work and Property Description ......................... 4 2.2 Description of Work ................................................................ 4 3.0 DISCUSSION OF ALTERNATIVES TO THE PROPOSAL........ 8 4.0 PLAN TO MITIGATE FOR STREAM IMPACTS 4.1 Stream Characterization ......................................................... 10 4.2 Stream Mitigation Site Description ........................................ 10 4.3 Stream Mitigation Concept ..................................................... 10 4.3 Stream Mitigation Site Modifications ...................................... 11 5.0 STREAM MITIGATION REMEDIATION AND SECURITY 5.1 Mitigation Monitoring .............................................................. 12 5.2 Mitigation Area Remediation ................................................. 12 5.3 Mitigation Security .................................................................. 13 TABLES Table 1 - Overall Project Impacts ................................................................ 6 APPENDIX 14 Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property Figure 2 - Index Map, Arbor Investments, L.L.C. Property Figure 3 - Area 1 Detail, James Jackson Avenue Extension Figure 4 - Area 2 Detail, James Jackson Avenue Extension Figure 5 - Areas 3 & 4, Industrial Development Project Figure 6 - Area 5, Residential Development Project Figure 7 - Area 6, Residential Development Project Figure 8 - Areas 7 & 9, Commercial Retail Project Figure 9 - Areas 8 & 10, Commercial Retail Project Figure 10 - Typical Cross Sections, James Jackson Avenue Extension Figure 11 - Site Map, Stream Mitigation Project Figure 12 - Construction Features, Stream Mitigation Project Figure 13 - Construction Features, Stream Mitigation Project Correspondence with Withers & Ravenel Regarding Stream Channel Design Present Agency Correspondence Previous Agency Correspondence ECPS Project No. 0006-001 Page - 1 ENN/70iVA?dENT.RC CONS4LTiQ/VTS.Q/YOPFi?7A//TSPFCL?L/S1S 1.0 INTRODUCTION AND PROJECT PURPOSE ' The purpose of this document is to propose a plan for compensatory mitigation of stream impacts associated with the development of the Arbor Investments, L.L.C. property located in Cary, North Carolina (herein afterwards referred to as ' the "Property"). The proximity of the Town of Cary to major employment, transportation, recreation and educational facilities makes it one of the fastest growing cities in the State of North Carolina. The Town of Cary is dependent on private ' development initiatives to meet the residential, retail and recreational demands of the growing population. The Town of Cary implements strict zoning restrictions that control the engineering and aesthetics of this growth in a ' planned and thoughtful manner. Arbor Investments, L.L.C., a private development initiative, is proposing to meet some of the demand pressures of the growing residential and commercial sectors by the developing the Property with a diversity of uses, including light industrial, multi-family residential, single- family residential and commercial uses. ' The project purpose is to construct the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. These land uses are those ' typically provided by private commercial developers to meet the needs of private citizens and private businesses. ' The intention of the stream mitigation outlined by this plan is to construct a substitute stream channel that will compensate for the stream channels segments that will be altered by project activities conducted under Nationwide ' Permit (NWP) 26. Regional conditions imposed by the U.S. Army Corps of Engineers, Wilmington District Regulatory Branch, dated May 15, 1997, require applicants provide notification to the Wilmington District Engineer and receive ' written approval prior to performing work that would impact more than 150 feet of a stream. Notification will include the location of work, a description of work, a discussion of alternatives to working in the stream and why alternatives were not ' selected, and a plan to mitigate for all avoidable adverse impacts to more than 150 linear feet of the stream. ECPS Project No. 0006-001 Page - 2 ' ENNHOM{/E-NT.4L CONSULTi4/V7S,Q/VOf?'/7.t//TSPFLYdL/STS This plan for stream mitigation is to construct 350 of new stream channel for the 500 feet of stream channel proposed to be altered as required by the federal regional guidelines that pertain to NWP 26. Other impacts described in this stream mitigation plan do not require mitigation but are provided for the sake of completeness. Adverse impacts of the other impacts of the project (NWP 14 activities) are considered to be no more than minimal and that the aquatic environment will be protected. This plan is to provide information for evaluation of the proposed stream mitigation by the natural resource agencies and is to also serve as a guidance document for future detailed engineering, construction and monitoring of the created stream segment. 1 ECPS Project No. 0006-001 Page - 3 PJ ENI9AOAWENTAL CONS!/L TiQ/VTS?IVOffIY///TSPFL)GQL/SlS 2.0 NOTIFICATION REQUIREMENTS k L? 0 2.1 Location of Work and Property Description The Property is a tract approximately 120 acres in size located between the proposed Cary Parkway and Maynard Road in the Town of Cary, Wake County, North Carolina (see Figure 1 - Site Location Map, Arbor Investments, L.L.C. Property). The Property is typical of properties in the Piedmont geographical province. The Property is moderately eroded and dissected with a significant drainage system. Vegetation consists of mature hardwoods, except in the central portion of the property, north of Coles Branch, and in portions of the floodplain south of Coles Branch. Here the Property is vegetated with young pines and mixed hardwoods. The WKIX antennae site is grassed. Overall, development of the Property will entail relatively minor environmental impacts. Coles Branch is a significant environmental feature of the Property. Coles Branch traverses the Property from the east to west and consists of a narrow perennial stream and flood plain. The Town of Cary restricts development within floodplains and no construction or development activities (with the exception of this proposed stream mitigation) are proposed by Arbor Investments, L.L.C. within the Coles Branch floodplain. The waters and wetlands of the site have been delineated and surveyed. The waters and wetland locations have been verified by the U.S. Army Corps of Engineers. Wetlands and waters on the Property account for an insignificant amount of the total land area. The project avoids wetland impacts entirely. 2.2 Description of Work t The project will involve the construction of the infrastructure necessary to develop the Property for diverse uses, including light industrial, multi-family residential, single-family residential and commercial uses. The impacts of the ' project are to "Waters of the United States" primarily from several minor road crossings that will access upland areas located on either side of several intermittent tributaries of Coles Branch. Within the perimeter of the commercial ECPS Project No. 0006-001 Page - 4 ' E7"%9aWe.4VTAL COWS!/LTitNTSR LPA'Ll4 rSFZCIAL/STS development, portions of the intermittent tributaries will be displaced for parking ' lot construction. The location of the project impacts relative to the Property are illustrated in ' Figure 2. More detail of the proposed development at each location is illustrated in Figures 3 through 10. A summary of the project impacts are indicated in Table 1. It is anticipated that approximately 5708 square feet (0.131 acres) of waters will be altered by the proposed project activities. As required under NWP 26 regional conditions, of the 500 feet of stream channel proposed to be altered, 350 feet of new stream channel is proposed to be constructed. 1 ECPS Project No. 0006-001 Page - 5 ENY/NOMI/FNT.4L CONS!/LTiQ/YTS.4/YOPLfiGV/TSPL`"C41L/SIS' PROJECT SEGMENT: JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 1 4 175 700 2 4 185 740 TOTALS 8 360 1440 (ACRES) 0.033 PROJECT SEGMENT: INDUSTRIAL PARK NORTH OF WKIX ANTENNAE 3 2 125 250 4 2 180 360 TOTALS 4 305 610 (ACRES) 0.014 PROJECT SEGMENT: RESIDENTIAL DEVELOPMENT SOUTH OF COLES BRANCH 5 5.5 180 990 6 1.0 180 180 TOTALS 6.5 360 1170 (ACRES) 0.027 PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE 7 4 180 720 8 1.2 180 216 TOTALS 5.2 360 936 (ACRES) 0.021 GRAND TOTALS: 23.7 4156 (ACRES) 0.095 ECPS Project No. 0006-001 Page - 6 LAIM&AAQENTAL CONS!/LTif/YTS 4NOPFf7A//TSPLCIQL/STS TABLE 1- OVERALL PROJECT I MPACTS (C ONT.) NATIONWIDE PERMIT 26 STREAM IMPACTS PROJECT SEGMENT: COMMERCIAL RETAIL PROJECT SOUTH OF JAMES JACKSON AVENUE CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA (FEET) (FEET) (SQUARE FEET) 9 4 340 1360 10 1.2 160 192 TOTALS 500 1552 (ACRES) 0.036 TOTAL AREA IMPACTS (NWP 14 & NWP 26) 5708 (ACRES) 0.131 ECPS Project No. 0006-001 Page - 7 IAWJVwM????? EMVI/ OWAAFIVMV C40WSUL rA)VINA)VOFL~rSPFCL4L/SIN 3.0 DISCUSSION OF ALTERNATIVES TO THE PROPOSAL The selection of this Property consisted of a process involving the evaluation and consideration of various engineering, economic and environmental factors. The principal controlling factors considered in proposing the utilization of the Property for the proposed project activities are as follows: Ownership. The Property is under the ownership of Arbor Investments, L.L.C. The Property was purchased for development purposes. The proposed impacts are the minimal necessary for economical development of the Property in accordance with the owner's investment-backed expectations. Location. The Property is located within the Town of Cary adjacent to developed tracts. The Property is proposed to be traversed by major transportation arteries. A major thoroughfare (Cary Parkway extension) has been proposed and is under consideration for construction that will border the western portion of the Property. The Property itself will be traversed by James Jackson Avenue (included as a portion of the proposed development for the Property in this application) which will connect the proposed Cary Parkway extension with North Maynard Road. Each of the public thoroughfares mentioned are part of the approved thoroughfare plan for the Town of Cary, which was approved by the Town and the NC Department of Transportation. Availability of Public Utilities. Water, sewer and natural gas are available at the Property. Previous public investment was made in the installation of these services in logical anticipation of future site development. Since the stream impacts proposed under NWP 26 at the commercial retail project south of James Jackson Avenue are the only stream impacts being mitigated for in this plan, this alternatives discussion will focus on the stream impacts surrounding this aspect of the project. The stream impacts of the commercial retail project consist primarily of fills for parking lot construction. Alternative parking lot configurations at the commercial retail project have been considered and where feasible, modifications have been made to the proposed project design. The use of bridges for the parking lots was judged to be impractical and economically unfeasible. The use of retaining walls to contain ECPS Project No. 0006-001 Page - 8 ' ENl'7/401YArPENTAL CONS!/LTR/Y7T.Q/IODPF/7A//TS/°L`CLAL/SlS r G parking lot side-slope fills was judged to create a safety issue, in addition to being impractical and economically unfeasible for both initial construction and long-term maintenance. The "no-build" alternative was also considered and rejected as it would not meet the project purpose. Additionally, the "no-build" alternative would not be in the public interest because the location of the project has the potential of serving a large population base with needed services (i.e. food, pharmacy, offices, etc.). There are no alternative sites for the commercial retail project that have the ownership, zoning, location or the availability of public services that would meet the project purpose and have significantly less impacts. The design of the proposed commercial retail project minimizes water and wetland impacts to the maximum extent possible while still meeting the project purpose. The following section describes the measures that will be employed in providing compensatory mitigation for the intermittent stream impacts. ECPS Project No. 0006-001 Page - 9 ENYA70NA/ENTgL CO/YS!/LTiQ/V7SsfNOPFR/dTSiA14Y4L/SlS 4.0 PLAN TO MITIGATE FOR STREAM IMPACTS 4.1 Stream Characterization Intermittent streams on the Property are generally characterized by shallow, narrow, eroded channels approximately three (3) feet deep, with a base of approximately two (2) feet and a top width of approximately four (4) feet. The stream channels are relatively straight in plan view and have occasional riffle and pool sequences within the stream beds. Some stream segments appeared to be relic agricultural ditches due to their extreme linear nature and lack of any definable riffle and pool sections. The stream banks are typically stabilized by a growth of mixed hardwoods and pines that vary in age from shrubs and saplings to mature trees. 4.2 Stream Mitigation Site Description The stream mitigation site (see Figure 11, Site Map, Stream Mitigation Project) is located within the floodplain of Coles Branch. The site is vegetated with shrub and sapling species that include mixed hardwoods and pines. Soils are alluvial sediment deposits from Coles Branch. 4.3 Stream Mitigation Concept [i The stream mitigation concept will involve the construction of an intermittent stream channel supplied with stormwater during rainfall events from the adjacent commercial retail project. The constructed stream channel will roughly parallel Coles Branch, in order to prevent the discharge of sediment into the constructed stream during high-flow events. The project construction sequence will minimize disturbance to vegetation as much as possible in gaining access to the site by hand clearing or utilizing a mower to clear the proposed stream corridor. Material from the channel excavation will be widely distributed to allow secondary growth of the indigenous vegetation from the existing roots and to reduce the possibility of the spoil material eroding back into the constructed stream channel. Rock material from offsite consisting of a mixture of rock sizes (2-18 inch) will be used to construct the riffle and pool sequences in accordance with state ECPS Project No. 0006-001 Page - 10 11 n r ENY/g0/VMENT.4C CONSULTA/YTSRNOPF/4A//TSh2GlAL/S7S guidelines. The stream development will be monitored after completion for vegetation growth and sedimentation. 4.4 Stream Mitigation Site Modifications The proposed site modifications will begin with a sediment basin at the upper end of the proposed stream channel construction. The sediment basin is to be installed as part of the site clearing operations for the proposed retail center. The sediment basin will be designed to remain after construction of the proposed retail center is completed and its discharge will form the upper-most point of the proposed stream mitigation. Stormwater from the buildings and parking areas of the westernmost portion of the shopping center will provide intermittent flow to the constructed stream. The drainage area is calculated to be 3.2 acres. Runoff calculations have been prepared by Withers & Ravenel and are included in the Appendix of this report. The proposed site modifications (see Figures 12 and 13) for the constructed stream channel will include a construction sequence that will minimize impacts to existing vegetation and unnecessary disruption to soils. This will be accomplished by either hand clearing existing vegetation or utilizing a mower, as site conditions allow, in the mitigation area. Clearing of the vegetation will involve cutting the existing plants to the roots but leaving the roots intact. Cuttings will be piled in portions of the cleared area away from the proposed stream route. Once the stream channel corridor is cleared of vegetation, the site will be accessed with rubber-tired equipment, such as a backhoe or a bobcat. The equipment will excavate the channel in accordance with the sizes indicated in Figure 13. Spoil from the excavation will be placed in alternate piles on either side of the channel excavation and leveled as much as possible with the equipment bucket. Every attempt will be made to spread the spoil from the excavation thin enough so the indigenous vegetation will redevelop. Following the excavation, the pool and riffle breaks will be installed in accordance with the specifications outlined in Figure 13. The material utilized to form the pool and riffle steps will be brought into the site utilizing rubber-tired equipment and positioned by hand. ECPS Project No. 0006-001 Page - 11 n EN%gpN,?/ENT,4L CP/YSULTi?NIu?iT/YOPF/4AdTSPFCI?L/STS 5.0 MITIGATION REMEDIATION AND SECURITY u 5.1 Mitigation Monitoring The constructed stream segment will be monitored upon completion for a period of three years for vegetation establishment (bank stabilization) and sedimentation levels. Regular inspections of the site will be conducted by a consultant hired by Arbor Investments, L.L.C. on a yearly basis and a brief letter will be provided to the U.S. Army Corps of Engineers regarding the inspection observations. The inspection letter will provide information regarding the height of the previously-disturbed vegetation and will provide information regarding the level of sedimentation or down-cutting taking place in the constructed stream. Any other information deemed important by the consultant will be provided in this letter also. 5.2 Mitigation Area Remediation Mitigation monitoring letters described in Section 5.1 will include suggested remedial measures if the inspection indicates such measures may be required. If it is noted the stream mitigation is performing unsatisfactorily, the consultant and the Arbor Investments, L.L.C. managers will provide a best professional judgment regarding the reason(s) for the unsatisfactory performance. The consultant and the Arbor Investments, L.L.C. managers may also suggest remedial measures to correct the deficiency in the mitigation area. Remedial measures will be evaluated in consideration of the performance standards outlined in Section 5.1. Where the mitigation monitoring reports identify no deficiencies in the mitigation area performance and include no recommendations for remedial measures, no response from the principal state and federal wetland resource authorities within 30 days will be considered acceptance of the site progress for the pertinent monitoring interval. In the event the mitigation monitoring report includes a recommendation for remedial measures, the principal state and federal wetland resource authorities will provide concurrence or an independent recommendation within 30 days of submittal of the mitigation monitoring report. ECPS Project No. 0006-001 Page - 12 t 1 ENF/RUNMENTs1L CONSULT.fNTSdNOfl?RM/TSFlCLQL/SIS' 5.3 Mitigation Security The mitigation site is currently owned by Arbor Investments, L.L.C.. Should the surrounding properties be sold in the future, Arbor Investments, L.L.C. will retain a maintenance easement on the site for the duration of the mitigation monitoring period. Arbor Investments, L.L.C. will convey, as part of the property parcel, the stream mitigation and the buffer zone area. At the end of the monitoring period maintenance of this stream mitigation will convey to the buyers. ECPS Project No. 0006-001 Page - 13 1 1 1] EN?7/9PIVAIENTAL CO/YSULT.?/YTS.QNOPFHV/TSFL?4'bdL/STS APPENDIX ECPS Project No. 0006-001 Page - 14 M 305 0 wate? ?? ? ? u ? ! Aso '? ,I?? I ?-/? ?"? ??? ?? " • ^' ,I ?'?? ?° ? o -11 6 1 11 1.-- o 50 , I c00 O V a o Q1 =t ?, SOURCE: CARY, NC 7-1/2 MINUTE QUAD FIGURE 1 SITE LOCATION MAP EA?1f70NA/ENT.QL ARBOR INVESTMENTS, L.L.C. CONSULT.QNTS PROPERTY .?NO f1?19A//T rrisaaer?avsvcE s?c?aL/srs "E?.w CARY, NORTH CAROLINA [I fl u 1 I-`? `\?• - fi r i ' \,. j '?, sir r \ I \ L? i • / Bml 37 rr ?l . .\ 7a R T !/ • w? vi/ 1 ` Goa (NOT TO SCALE) FIGURE 2 _ INDEX MAP ARBOR INVESTMENTS, L.L.C. EN67/70NA/ENrfL CONSUL T.QNTS PROPERTY .BYO Fl?f7A//T zrss oale?wv,awcE A.[E.Y.X NC t/fAI s?-c?rc/srs CARY ,NORTH CAROLINA t A f \t 'y SIB -JM1 S C/ ? ???? -N - '\ WETLANDS \ LIMITS FENCE %F s ,? ? ' ; L9 01 K RS r? ",<< ' SLTFENCE; \ \ t` ` 1 NOTE: INFORMATION ON THES t I ' MORRFSVI I ?I T HAS EITHER BEEN COPIED OR INTER RET ,-ETJ 7•? 1 , ?, ; l i FROM MAPS PREPARED BY WITHERS RA L ! : I, i ` l I 1 i OF CARY, NORTH CAROLINA. INFOF4AA ON PROVIDED IN THIS APPLICATION I SCHEMATIC IN NATURE AND It 14gT h B I? , 1 I 1 UTILIZED FOR CONSTRU4Tk)O ? UR OSE SCALE: I"= 100' e1WW 70NAIENTAL CONSUL TAoVTS ANO FWf7A01T lll?OlO N7IMYAACE S.JWCLQL/STS ?x.cE?crc ..r z?sai /s?slr» asas FIGURE 3 AREA 1 DETAIL JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA lul u r1l '3> o" EXISTING 48" cmp TO BE REwJ\ED FCp?O,? SILT FENCE - ej. tiT 1 1 F y SIL? F?NC l , / r" ; IJl ? 1,???: r! , t. rF 'ct SCALE: 1" = 100' WETLANDS LIMITS NOTE: INFORMATION ON THESE DRAWINGS HAS EITHER BEEN COPIED OR INTERPRETED FROM MAPS PREPARED BY WITHERS & RAVENEL OF CARY, NORTH CAROLINA. INFORMATION PROVIDED IN THIS APPLICATION IS SCHEMATIC IN NATURE AND IS NOT TO BE UTILIZED FOR CONSTRUCTION PURPOSES. ElYf9AONA/E/VT.QL CONSUL r"rS Alfa tl/saaes?wsrwct- .SPL?C/QL/STS RILE/G/'1, MC Il6QI /!J!J'771,A6'li /l/M?YROMI FIGURE 4 AREA 2 DETAIL JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA 1 u 0 11 t t ' A 4 -- \ AR ` 1 1 rr i / \ \ I I .. 1,1 I \ I I I 1 1 I . ' I I? / I ?\ I I 1 \ _ I \ I. I 1 I I II I __ 1 1 I I I I \\ I I / r o ? ? 1 I SCALE: I"- 0 ENi7R0/YME/YT.QL ." PL'?/4M/T rrr?ooerews?wcF .?nrxac ,.C r,:.. FIGURE 5 AREAS 3 & 4 INDUSTRIAL DEVELOPMENT PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA t / may:. ` ) \ ' 1 1 ' ? I 1 I• .?,_: ?, _ •???-?? fit. ?• ? ? ? % • 'rod' 1. 1 ? .? .. ? .` I ` ( 1 `, 1 fi SCALE: V = 100' FIGURE 6 AREA 5 RESIDENTIAL DEVELOPMENT ENv_vz/z MENT,aL PROJECT CONSUL T.4NTS .Wla PLFi9A/?T rrldooaawRACE s?cc?c/srs 'g"`?,? ? ARBOR INVESTMENTS, L.L.C. ^°? CARY, NORTH CAROLINA i I EXISTING TREES ` 330 --? ?? 1 ^? \ ?`{ N\ D AREA - ?L HOUSE= SCALE: 1 ^ = loo' FIGURE 7 AREA 6 RESIDENTIAL DEVELOPMENT EA?F/f70NAlENTAL PROJECT CONSUL TANTS AiVO ?CA/{??T 11/f OOB9iV PC.KE sT?cucisrs " ?,` n ARBOR INVESTMENTS, L.L.C. ^r-- CARY, NORTH CAROLINA rl \ 1 !44 1 \ l i SCALE: 1" 3 100' ENWONMENTAL CONSUL TANTS ANO ?CpM? Ill/' aVfiaWIR'ACF .sex ec ? r.:.. sowcaLisrs /!,lrlJ, Oil i l - - - - -- - - - - - - FIGURE 8 AREAS 7&9 COMMERCIAL RETAIL PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA l 1 ?I, D`? qV SCALE: V = 100' FIGURE 9 AREAS 8&10 COMMERCIAL RETAIL ENYIHONMENTiQL PROJECT CONSUL Ts1NT5 .QNO f'L?f7M? rr?s ooer?ov st,?cE ARBOR INVESTMENTS, L.L.C. Sf?C64L/Srs ry?? rn osx +•---?-- CARY, NORTH CAROLINA n PROPOSED ROADWAY NOTE: INFORMATION REGARDING CULVERTS AND FILL HAS BEEN INTERPRETED FROM A MAP PREPARED BY WITHERS 8 RAVENEL OF CARY, NORTH CAROLINA. INFORMATION IS SCHEMATIC IN NATURE AND IS NOT TO BE UTILIZED FOR CONSTRUCTION PURPOSES. ??\A ?`? V? VAi ? VA ?A` \A' ? \ r AA VA VA _X EARTHEN FILL EXISTING GROUND CONTOURS 48 INCH CULVERT EARTHEN FILL TYPICAL CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 1 (N.T.S.) EXISTING GROUND 15 INCH CULVERT / CONTOURS TYPICAL CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 2 (N.T.S.) SCALE: (VARIES) Afi-?X 'M ESAWWONAIE/VT.QL CONSUL TAW7N AWD Fl?f7M/T rr?6aos?oovfrwc? /tfCEK?Y NC ZIiN SPLNCLQL/STS ?9/? lJ/-0i7f FIGURE 10 TYPICAL CROSS SECTIONS JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA \ rx. V fl r' .!/ \ p d f` ? CRE? 1 ?. J 1 GRID r! : , • c P PROJSFT SITE ------------ -------------- -------------- ¢, ------ l,'I o Zvi T - N-L1 ? n 1 \ O 1 1 p (N.T.S.) EAWRONA/NVUL C0.4V.V4VLTAA/7'S AA/O AERA//T rr?ra cvaw.RwcF iaaFrm+c nz- rso. s?ciacisrs p,?yr?,slsrc FIGURE 11 SITE MAP STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA i 0 CLEARING LIMITS --,, f^ - SPOIL PLACEMENT TOP OF DANK CHANNEL +/. 36 FEET / J \\; CLEARING LIMITS PLAN VIEW OF CONSTRUCTION FEATURES (N.T.S.) (N.T.S.) ---AWRoncWnrW CONSUL rANrS "Z7 IIF~T Il>600B9WPPAC'F 174LEJWW KC ?"aw SICL?rhdusTS FIGURE 12 CONSTRUCTION FEATURES STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA 5 (TYPICAL) > 3- (TYPICAL) )v LSEGMENT O L) O TOP OF BANK - C) L' ?- DAM SEGMENT STREAM MITIGATION PLAN VIEW (N.T.S.) DAM SEGMENT POOL SEGMENT TOP OF BANK 15 TO 21 FEET EXCAVATION LIMITS 2- (TYPICAL) 1- (TYPICAL) STREAM MITIGATION PROFILE VIEW (N.T.S.) (N.T.S.) EA'WRONA&WUL CONSULTANTS ANO aak-AZ% AIC ?/S" /7fCE]CK .C' 1J60I ,S.cl-C11L/S7 ry1?I.11-0676 ... W - FIGURE 13 CONSTRUCTION FEATURES STREAM MITIGATION PROJECT ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA WITNlR! ? RAVlNlL 0 WITHERS & RAVENEL, Engineering & Surveying, Inc. Hamilton E. Withers, A 111 MacKenan Drive, Cary N. C. 27511.9191469-3340•FAX: 9191467-6008 James Sam s F. Ravenel, P. E. Canfield, P. Loftee G. Smith, A Jimmy E. Bass, RL Michael E. Dickerson, RL June 3, 1997 Arbor Investments, LLC ATTN: Randy Smith 1005 High House Road Cary, NC 27513 RE: James Jackson Shopping Center Wetlands Mitigation ' Dear Randy: This letter is in reference to the design of the channel mitigation to compensate for wetlands ' impacts at the reference site. Our design criteria was based on Nelson Paul's memo to Tony, dated 5/22/97. Summarizing our design parameters, we computed a 2 year peak discharge of 15 CFS for a 3.2 acre drainage area assuming a runoff curve number of 95. Our storm distribution was the SCS type 2 rainfall distribution with an antecedent moisture condition 2. We designed the channel to just overflow during the two year storm as opposed to the typical design which would put freeboard to prevent overflowing during the specified design storm. The intent here is to have "out of bank" flow and to create a low velocity meandering channel ' which will improve water quality and mitigate the loss of wetlands. I have assumed a design depth of 1' for three different channel slopes allowing the bottom width to vary with the slope. You will want to do a preliminary layout to determine what slope to excavate the channel on. ' The following will hold true for a depth of 1' and a mannings "n" of .030 and 2.5:1 side slopes: DEPTH SLOPE(%) BOTTOM WIDTH (FEET) ' 1.0 0.5 3.1 1.0 1.0 1.8 1.0 2.0 0.8 The channel should be lined with "Enkamat" 7020 to allow stabilization with vegetation. The vegetation should be a wetlands variety to be selected by Nelson Paul. If the depth I am showing does not work out, please notify me and I will generate some additional channel sections for other depths or slopes. Sincerely, 4am-u--el . Ravenel, PE cc Nelson Paul j:\eng-sur\proj\94\105\060397.rs GRAPHICAL PEAK DISCHARGE METHOD Version 2.00 Project J. JACKSON SHOPPING CENTER User: SFR Date: 06-03-97 Junty WAKE State: NC Checked: Date: btitle: CHANNEL/WETLANDS MITIGATION Data: Drainage Area 3.2 Acres ' Runoff Curve Number 95 Time of Concentration: 0.10 Hours Rainfall Type II ' Pond and Swamp Area NONE Storm Number 1 1 1 2 1 --------------------- I------ I------I Frequency (yrs) 1 2 1 10 ' I I I 24-Hr Rainfall (in) 1 3.6 1 5.6 1 I I I Ia/P Ratio 0.03 1 0.02 1 I I Used 0.10 1 0.10 1 I I I I Runoff (in) 1 3.04 1 5.01 I I I Unit Peak Discharge 11.578 11.578 1 1 (cfs/acre/in) I I I I Pond and Swamp Factorl 1.00 1 1.00 1 1 0.0% Ponds Used Peak Discharge (cfs) 15 1 25 1 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. 2.50:1 (H:V) Right Side Slope. 2.50:1 (H:V) Manning's n...... 0.030 Channel Slope.... 0.0100 ft/ft Depth............ 1.00 ft Discharge........ 15.00 cfs Computed Results: Bottom Width.... 1.77 ft Velocity......... 3.51 fps Flow Area........ 4.27 sf Flow Top Width... 6.77 ft Wetted Perimeter. 7.16 ft Critical Depth... 0.88 ft Critical Slope... 0.0170 ft/ft Froude Number.... 0.78 (flow is Subcritical) Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. 2.50:1 (H:V) Right Side Slope. 2.50:1 (H:V) Manning's n...... 0.030 Channel Slope.... 0.0200 ft/ft Depth............ 1.00 ft Discharge........ 15.00 cfs Computed Results: Bottom Width.... 0.77 ft Velocity......... 4.59 fps Flow Area........ 3.27 sf Flow Top Width... 5.77 ft Wetted Perimeter. 6.15 ft Critical Depth... 1.03 ft Critical Slope... 0.0171 ft/ft Froude Number.... 1.08 (flow is Supercritical) Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Trapezoidal Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: SAM1 Comment: J.JACKSON CHANNEL MITIGATION Solve For Bottom Width Given Input Data: Left Side Slope.. 2.50:1 (H:V) Right Side Slope. 2.50:1 (H:V) Manning's n...... 0.030 Channel Slope.... 0.0050 ft/ft Depth............ 1.00 ft Discharge........ 15.00 cfs Computed Results: Bottom Width.... 3.14 ft Velocity......... 2.66 fps Flow Area........ 5.64 sf Flow Top Width... 8.14 ft Wetted Perimeter. 8.53 ft Critical Depth... 0.73 ft Critical Slope... 0.0171 ft/ft Froude Number.... 0.56 (flow is Subcritical) Open Channel Flow Module, Version 3.12 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 ?AGSIMILE COVER SHEET To: Tony Withers Company: Withers & Ravenel ' At: 467-6008 From: Nelson C. Paul Pax: 919-221-0636 Date: 5/22/97 I I Company: ECPS, Inc. Voice: 919-231-0626 Time: t0:00PM COMM: Pages Including Cover: l Tony, I have checked with the COE regarding the guidance on stream mitigation. Ken Jolly indicated the state Quidelines would be One for now in their consideration of the stream mitigation plan. State guidelines Indicate the stream channel cross-section should be designed to carry no more than the 2-year, 24 hour storm. Pool to riffle sequence should be spaced at 5 to 7 times the channel width and pools are generally two times deeper than the riffle area. In order to prevent the increased cost of streambank restoration (and potential failure of the mitigation), prior to constructing the stream mitigation, the area should be mowed or cleared by hand. It may be that the constructed stream channel could be plowed into the substrate or either excavated with a rubber-tired backhoe. We may need to discuss where and how the f111 is to be placed if the latter alternative is utilized. State guidance indicates the use of tiprap should be minimized. me if you have any questions. Nelson. t 6 t ' 47 THE INFORMATION CONTAINED IN THIS FAX IS INTENDED FOR THE EXCLUSIVE USE OF THE ADDRESSEE AND MAY CONTAIN CONFIDENTIAL AND/OR PRIVILEGED INFORMATION. IF YOU ARE NOT THE INTENDED RECIPIENT, YOU ARE HEREBY NOT[= THAT ANY FORM OF DISSEMINATION OF THIS COMMUNICATION L4 STRICTLY PROHIBITED. IF THIS FAX WAS SENT TO YOU IN ERROR, PLEASE IMMEADIATELY NOTIFY US AT THE TELEPHONE NUMBER LISTED. THANK YOU FOR YOUR COOPERATION. MAY-29-1997 0923 l ECPS+ Inc. :R j Iy O I 1 to y !? 1 f ? 1 i/ L,j I vJ i ' VJ II !I ? I ? / I _ ? ? ! i •?I ? ? F Ili .? ,?`` ? % I 1 i ? ?r ? i I ? / I 1 W 1 I 1 Qt? ?' I I ' I ? i i I I I i it , 1 } fi { II l " (l, FI)E .,-- , ?' ? ?. I ' ? t 1 ' 1`? 1?i•??' ?jpJ?bN1 ri~ l 1 ? Il I ?•?, tpa, rt ' 00" 0 4 I:. t ... l ` C; C, I '1 II ` \ it ? ? I ' '` i \.?•y ,ti, i tjj I ? I ?i 'j i `? ? ?, t i p 1 1?' I l j I ?' r n t DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 5ff P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 wo^?:? REPLY TO ATTENTION OF May 8, 1997 Regulatory Branch Subject: Action ID No. 199700681 Mr. Tim Smith c/o Mr. Randy Smith Arbor Investments, L.L.C. 1005 High House Road Cary, North Carolina 27513 Dear Mr. Smith: Please reference the April 8, 1997 permit application, submitted on your behalf by Mr. Nelson G. Paul of Environmental Consultants and Permit Specialists, for Department of the Army (DA) approval to discharge fill material over 0.03 acre of jurisdictional waters (bank-to-bank tributaries) of the United States for the proposed construction of the James Jackson Avenue extension, from existing James Jackson Avenue west to the proposed Cary Parkway connector, associated with your future commercial development on the adjacent property. This proposed development, containing 192.3 acres, is located adjacent to and above the headwaters of Coles Branch, in Cary, Wake County, North Carolina. The application you have submitted does not include the anticipated impacts associated with the proposed construction of the adjacent, related commercial development. We would anticipate that adverse environmental impacts will occur as a result of additional fills within jurisdictional waters and/or wetlands associated with this project. Our regulations, (Title 33 of the Code of Federal Regulations, Part 325), outline processing procedures for a Department of the Army (DA) permit. We are required to look at "all activities which the applicant plans to undertake which are reasonably related to the same project and for which a DA permit would be required... District Engineers should reject, as incomplete, any permit application 11 ' which fails to comply with this requirement." In addition, pursuant to December 13, 1996 Federal Register, Final Notice of ' Issuance, Reissuance, and Modification of Nationwide Permits (61 FR 65874), General Condition 13(b)(3), notification to the District Engineer must include "any other NWP(s), regional ' general permit(s) or individual permit(s) used or intended to be used to authorize any part of the proposed project or any related activity." 1 Mr. Eric Alsmeyer of my regulatory staff verbally explained our concerns to Mr. Paul during their telephone conversation of ' May 8, 1997. He outlined the fact that we have determined that the commercial development is reasonably related to the proposed road. In addition, based upon all information available to us at ' this time, we would have to consider the entire commercial development to be a single and complete project, the segmentation ' of which would preclude reasonable and feasible alternatives for minimization and avoidance of wetland impacts for the portions requiring an individual permit. Based upon our conclusions, you ' are notified that the application you have submitted is not complete and therefore cannot be processed at this time. You are advised to re-evaluate the manner in which you have applied for ' our approval and to resubmit the application with all required information. We will commence the processing of your application upon receipt of all complete and accurate information regarding ' the additional jurisdictional activities associated with the project. ' Please note that the following information will likely apply to the proposed project, particularly if your complete ' application involves an individual DA permit. On November 15, 1989, the Department of the Army and the U.S. Environmental Protection Agency signed a memorandum of agreement (MOA) ' establishing procedures to determine the type and level of mitigation necessary to comply with the Clean Water Act, Section 404(b)(1) Guidelines. This MOA, which became effective on ' February 6, 1990, provides for (1) avoiding impacts to waters and wetlands through the selection of the least damaging, practicable alternative; (2) taking appropriate and practicable steps to ' minimize impacts to waters and wetlands; and (3) compensating for any remaining unavoidable impacts to the maximum extent 2 ' practicable and appropriate. To enable the Regulatory Branch to process a permit application in full compliance with this MOA, ' the following additional information should be provided with any application: a. Permits are available only for work dependent upon being located within an aquatic site and being the least environmentally damaging, practicable alternative. Information ' (alternatives analysis) regarding any other practicable alternatives, including upland alternatives, to the work for which you may apply must be provided, as well as justification ' that your selected plan is the least damaging to waters and/or wetland areas. ' b. It is necessary for you to have taken all appropriate and practicable steps to minimize wetland losses. Please indicate ' all that you have done, especially regarding development and modification of plans and proposed construction techniques, to minimize adverse impacts. C. The MOA then states that appropriate and practicable mitigation will be required for all unavoidable adverse impacts ' remaining after practicable minimization has been employed. Please outline your plan to mitigate for the projected, unavoidable losses of waters and/or wetlands, or provide ' information as to the absence of any such appropriate and practicable measures. C 1 Any questions or comments, as well as your complete Department of the Army permit package, should be addressed to Mr. Alsmeyer at telephone (919) 876-8441, extension 23. Sincerely, S. Kenneth Jolly Manager, Raleigh Regulatory Field Office 3 ' Copies Furnished: Mr. Nelson Paul ' ECPS, Inc. 2216 Dobbin Place Raleigh, North Carolina 27604-3878 ' Mr. John Dorney Division of Water Quality ' North Carolina Department of Environment, Health and ' Natural Resources 4401 Reedy Creek Road Raleigh, North Carolina 27607 I 7 I I 4 State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. -Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear S irs: A!, ID F= F1 April 25, 1997 DWQ #970326 Wake County ' On 4 April 1997, you applied to the N.C. Division of Water Quality (DWQ) for a 401 Water Quality Certification to impact 360 linear feet of waters for your project (James Jackson Ave.) located at North Maynard Road and Cary Parkway in Wake County. Your project has been forwarded to Mr. Danny Smith t (919) 571-4700 of DWQ Raleigh Regional Office for review. This review will likely require an on-site inspection prior to the approval, modification or denial of your project site. If you have sent additional information to the U.S. Army Corps of Engineers concerning this project, please be certain that our staff have copies of this material so we can use it in our process in making a decision. According to our preliminary, in-house review since you propose to disturb greater than 150 linear feet of streams, it is likely that compensatory mitigation will be required by DWQ for this project as described in 15A NCAC 2H.0506 (b)(6). Our Regional Office staff can make this decision during their site visit. If adequate mitigation is required but not provided, this project will likely have to be denied. If stream mitigation is needed, the wetland Restoration Program can satisfy this requirement at $125 per linear foot of stream. Otherwise you will have to identify a suitable mitigation site and develop an approvable mitigation plan. Also if a mitigation plan is required, we will place this project on hold until its receipt in our Central Office. Enclosed are materials describing compensatory mitigation requirements for this program. Please call me at 919-733-1786 to discuss these matters if necessary. Until a mitigation plan is provided, this application is considered to be incomplete and our processing time will not start. We recommend that you not impact any wetlands or waters on your project site until a 401 Water Quality Certification has been issued from Raleigh, The issuance of a Corps of Engineers 404 Permit does not mean that your project can proceed. According to the Clean Water Act, the 404 Permit is not valid until a 401 Certification is also issued. If DWQ staff observe impacts which are not allowable, you will be required to remove the fill and restore the site to its original condition. I can be reached at 919-733-1786 if you have any questions about the 401 Certification process. Program cc: Raleigh DWQ Regional Office Central Files Nelson Paul; ECPS 970326.rovst Division of Water Quality • Environmental Sciences Branch Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Aff irmative Action Employer • 50% recycled/10% post consumer paper ......... ...... ::: -mow.:::::.. .::::.... :::::::::::: ...::c.!r' ....... ............................................................................. ............. .................. ........................................ ENY/R?N.4lENT.4L CONSUL TstNTS.?VQ FI?R.?1/T SPEC/AL/S73S 2216 QOBB/NF-l.QCE, AW _-1CH. NC -TS&W (S79f X31-0636 npsu/?/una_ cam June 7, 1997 ' WATER QUALITY PLANNNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES ' P.O. Box 29535 Raleigh, North Carolina 27626-0535 ATTN.: Mr. John Domey Subject: ARBOR INVESTMENTS, L.L.C. CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 ' APPLICATION Gentlemen, ' Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for the above-mentioned Project. This project was previously considered by your office as a NWP 14 application for the James Jackson Avenue portion of the property. Additional information ' regarding the plans for the entire property was requested by the U.S. Army Corps of Engineers during the previous application review. Please review the attached information and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. Cordially yours, ECPS, Inc. r ' Nelson G. Paul A'J ? General Manager/Land Use Consultant C 1 ..................... ......................... ....... _....... .................................................................................................................................................................................................................. _ 1 _,09VW &jVMENrAV_ CQNSUL rAW73 "Z7 F-VCOAWIrS)EIFCLdL/STS 221SZ74fW,&10VAPACE. AWEI H /VC 2.79J?4f t June 7, 1997 National Marine Fisheries Service Habitat Conservation Division ' Pivers Island Beaufort, North Carolina 28516 t State Historic Preservation Office N.C. Division of Archives and History 109 East Jones Street ' Raleigh, North Carolina 27601 Subject: ARBOR INVESTMENTS, L.L.C. ' CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION ' Gentlemen, Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for ' the above-mentioned Project. This project was previously considered as a NWP 14 application for the James Jackson Avenue portion of the property. Additional information regarding the plans for the entire property was requested by the U.S. Army Corps of Engineers during the previous application review. Please provide me with any comments your office may have ' regarding this project. Thank you for your assistance and please feel free to call me at (919) 231-0636 or through my voice mail/pager (919) 406-7562 if you have any questions. ' Cordially yours, ECPS, Inc. Nelson G. Paul ' General Manager/Land Use Consultant 7 ............ . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . .. . . . . .. . . . . . . . . . .. . . .. . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . .. . . . . . . . .. .. .. .. . . . .. . . . . . . . . .. . . . . . . . . . .. .. .. .. . . . . . . . .. .. . . .. . . . . . . . . . .. . . . . . . . . . . . . . .. .. .. . . . . . . . . . . . .. .. . ENY/RONMENT.4L CONSUL TAN7SslNa fER?t!/T SPLFC/stL/.STS ??7600BB/NPY?QCE. RdLE/GH NC 2?6U4 (9r9?1231-OB36 npaa/?`ana_?vm June 7, 1997 WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY 6508 Falls of the Neuse Road, Suite 120 Raleigh, North Carolina 27615 ATTN.: CESAW-CO-E Subject: ARBOR INVESTMENTS, L.L.C. CARY, WAKE COUNTY, NORTH CAROLINA COMBINED NATIONWIDE PERMIT 14 AND NATIONWIDE PERMIT 26 APPLICATION Gentlemen, Attached is a combined permit application for a Nationwide Permit (NWP) 14 and a NWP 26 for the above-mentioned Project. This project was previously considered by your office as a NWP 14 application for the James Jackson Avenue portion of the property. Additional information regarding the plans for the entire property was requested by your office during the previous application review. Please review the attached information and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. Cordially yours, ECPS, Inc. Nelson G. Paul General Manager/Land Use Consultant y .r .? T? `, s " F a " i { ?.?: {1' f Y F r-, 4 fi i f r t '?+ i + r ;'?F t"I a ?' ,r i , • i - Y ` ' t '? a 4} n , , 1 F G; r I Y.,. r - ` r 4 ? _ , .? e, ` r ,4 I f?q ; ran p r. ?. ,. + 1 - ?, r ` J ` , y d 6, l1 - ' 4 1 ?' *, 4, 1 . ,' . W f ;? y it ? 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Ys HiE{l v %l 1 f F' q S?4 r I .1,, t 7 ?: 4 , ti r II F Y, ?, 1? 'k c b 4 b r r ? {k ,x , ,. t? .i; , ie • Q a t Y 3 LJ t k ,E i 9 n' S i p, i `'-, ?i , rq• J I .1 { , n 1 r y Y t ti l ? t ` r „i 1 H ? , +? k,. t ? ryk t '' 1? Y .'I J Y . t r ' ` 1F- e •? a _ i y n , -S zb 4 ,. ` " Y J i t r two y r a r F Jr i, ,' ' 7 , , ? t d 1 i 61 W , 4 i ? ` ?? , , ! r ' ` , ' y t , I , '^ 1 - , , t ' + 1 5 " S f Y , " { ?, F?v .' d ` f e {{ yF I 1. "I 1?1 I?, t H i t 4ti ! 1 + J f t 1 - t 6. .( T 1 b ? f i t! '+ ) 4 F V{ 4 4l T, 'n w f 1 ..t J f .. v. V 5 '. . t t .;1 d e v 4t t, t d 1 Yt _ F '? ?? ( L `? ? r 'r t ? a a y i A . J , I 'M f 1 ? i , t , , .I f S 1Y i 1 t I . . . 1 I . 4 _ ? , - , . I ,{ , t vl, .{J kT ' ? + ill , .. , f,? _ . . .. $. .b .?, _ ?,a :'' i:;, 't -"s.,, __j zc , ti" State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Mr. Randy Smith Arbor Investments 1005 High House Road Cary, NC 27513 Dear Mr. Smith: Re: Proposed land clearing of wetlands Wake County WQC Project #970326 COE #199700681 IF 174 :U?FA ID EHNI? May 13, 1997 On 9 May 1997 the Division of Water Quality (DWQ) was notified by receipt of a copy of the 8 May 1997 letter from the U.S. Army Corps of Engineers regarding your plan to fill waters for the purpose of constructing James Jackson Road in Wake County. Approval from DWQ is required to disturb these wetlands. According to the Corps letter, your application is incomplete since it did not address the impact of the adjacent, related commercial development. Until you submit additional information and the Corps agrees that the project is complete, we will place this project on hold. As you are aware, Mr. Eric Fleek of our Raleigh Regional Office visited the site on 7 May 1997 and determined that stream mitigation would not be needed for these road crossings. The Central Office agrees with this determination. Please call me at 919-733-1786 if you have any questions or would require copies of our rules or procedural materials. Sincerely, 4J?ohR.u2 Drney ty Ce fi anon Program cc: Raleigh DWQ Regional Office Wilmington Corps of Engineers Central Files Eric Alsmeyer, Raleigh Field Office Corps of Engineers 970326.app Division of Water Quality • Environmental Sciences Branch Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 ^n Equal Opportunity Aff irmative Action Employer • 50% recycled/10% post consumer paper DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 REPLY TO ATTENTION OF May 8, 1997 Regulatory Branch (r( i- Subject: Action ID No. 199700681 T4.? Mr. Tim Smith c/o Mr. Randy Smith Arbor Investments, L.L.C. 1005 High House Road Cary, North Carolina 27513 Dear Mr. Smith: F?? 41QyG ZC. ?o????Tgl yJ99J ?ri Please reference the April 8, 1997 permit application, submitted on your behalf by Mr. Nelson G. Paul of Environmental Consultants and Permit Specialists, for Department of the Army (DA) approval to discharge fill material over 0.03 acre of jurisdictional waters (bank-to-bank tributaries) of the United States for the proposed construction of the James Jackson Avenue extension, from existing James Jackson Avenue west to the proposed Cary Parkway connector, associated with your future commercial development on the adjacent property. This proposed development, containing 192.3 acres, is located adjacent to and above the headwaters of Coles Branch, in Cary, Wake County, North Carolina. The application you have submitted does not include the anticipated impacts associated with the proposed construction of the adjacent, related commercial development. We would anticipate that adverse environmental impacts will occur as a result of additional fills within jurisdictional waters and/or wetlands associated with this project. Our regulations, (Title 33 of the Code of Federal Regulations, Part 325), outline processing procedures for a Department of the Army (DA) permit. We are required to look at "all activities which the applicant plans to undertake which are reasonably related to the same project and for which a DA permit would be required... District Engineers should reject, as incomplete, any permit application which fails to comply with this requirement." In addition, pursuant to December 13, 1996 Federal Register, Final Notice of Issuance, Reissuance, and Modification of Nationwide Permits (61 FR 65874), General Condition 13(b)(3), notification to the District Engineer must include "any other NWP(s), regional general permit(s) or individual permit(s) used or intended to be used to authorize any part of the proposed project or any related activity." Mr. Eric Alsmeyer of my regulatory staff verbally explained our concerns to Mr. Paul during their telephone conversation of May 8, 1997. He outlined the fact that we have determined that the commercial development is reasonably related to the proposed road. In addition, based upon all information available to us at this time, we would have to consider the entire commercial development to be a single and complete project, the segmentation of which would preclude reasonable and feasible alternatives for minimization and avoidance of wetland impacts for the portions requiring an individual permit. Based upon our conclusions, you are notified that the application you have submitted is not complete and therefore cannot be processed at this time. You are advised to re-evaluate the manner in which you have applied for our approval and to resubmit the application with all required information. We will commence the processing of your application upon receipt of all complete and accurate information regarding the additional jurisdictional activities associated with the project. Please note that the following information will likely apply to the proposed project, particularly if your complete application involves an individual DA permit. On November 15, 1989, the Department of the Army and the U.S. Environmental Protection Agency signed a memorandum of agreement (MOA) establishing procedures to determine the type and level of mitigation necessary to comply with the Clean Water Act, Section 404(b)(1) Guidelines. This MOA, which became effective on February 6, 1990, provides for (1) avoiding impacts to waters and wetlands through the selection of the least damaging, practicable alternative; (2) taking appropriate and practicable steps to minimize impacts to waters and wetlands; and (3) compensating for any remaining unavoidable impacts to the maximum extent 2 practicable and appropriate. To enable the Regulatory Branch to process a permit application in full compliance with this MOA, the following additional information should be provided with any application: a. Permits are available only for work dependent upon being located within an aquatic site and being the least environmentally damaging, practicable alternative. Information (alternatives analysis) regarding any other practicable alternatives, including upland alternatives, to the work for which you may apply must be provided, as well as justification that your selected plan is the least damaging to waters and/or wetland areas. b. It is necessary for you to have taken all appropriate and practicable steps to minimize wetland losses. Please indicate all that you have done, especially regarding development and modification of plans and proposed construction techniques, to minimize adverse impacts. C. The MOA then states that appropriate and practicable mitigation will be required for all unavoidable adverse impacts remaining after practicable minimization has been employed. Please outline your plan to mitigate for the projected, unavoidable losses of waters and/or wetlands, or provide information as to the absence of any such appropriate and practicable measures. Any questions or comments, as well as your complete Department of the Army permit package, should be addressed to Mr. Alsmeyer at telephone (919) 876-8441, extension 23. Sincerely, S. Kenneth Jolly Manager, Raleigh Regulatory Field office 3 Copies Furnished: Mr. Nelson Paul ECPS, Inc. 2216 Dobbin Place Raleigh, North Carolina 27604-3878 Mr. John Dorney Division of Water Quality North Carolina Department of Environment, Health anc? Natural Resources ?/ 4401 Reedy Creek Road Raleigh, North Carolina 27607 4 70 '396' .4 1 , 14 l? (,I -- _ -- --- - --- --? "-4 --- VAP4 o'A YLUP 'W'? S l 0 ' lM[? v AM -4- ..:::::........: .................... ..................................................................................... ........... ............................. ................................................... ............. .... ENYlR17N.?lENT.4L CONSl?1 T.4N75'.4NQ F?R.Sf/T S?Cr4L/STS 276017BB1NPY}ECE Rr?LE/GH NG'T6C14 [371.91237-(7636 npau/dP ./dyna_ c? April 7, 1997 Jq"ftl 14 1991 W DIVISION OF ATER QUALITY PLANNNING FRoN NC DEPARTMENT ENVIRONMENTAL OF NVIRONMENT H ALTH AND NATURAL RESOURCES NTA?gC?FNC? P.O. Box 29535 Raleigh, North Carolina 27626-0535 ATTN.: Mr. John Dorney Subject: ARBOR INVESTMENTS, L.L.C. JAMES JACKSON AVENUE NORTH MAYNARD ROAD/CARY PARKWAY CONNECTOR CARY, WAKE COUNTY, NORTH CAROLINA NATIONWIDE PERMIT 14 APPLICATION Gentlemen, Attached is a permit application for a Nationwide Permit (NWP) 14 for the above-mentioned Project. This Project is not anticipated to impact wetlands or special aquatic sites, however, the application is being submitted as if the "Notification" general condition applies. Please review and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. Cordially yours, ECPS, Inc. Nelson G. Paul General Manager/Land Use Consultant State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Arbor Investments, LLC 1005 High House Road Cary, NC 27513 Dear Sirs: AT4 ED FE F10 April 25, 1997 DWQ #970326 Wake County On 4 April 1997, you applied to the N.C. Division of Water Quality (DWQ) for a 401 Water Quality Certification to impact 360 linear feet of waters for your project (James Jackson Ave.) located at North Maynard Road and Cary Parkway in Wake County. Your project has been forwarded to Mr. Danny Smith (919) 571-4700 of DWQ Raleigh Regional Office for review. This review will likely require an on-site inspection prior to the approval, modification or denial of your project site. If you have sent additional information to the U.S. Army Corps of Engineers concerning this project, please be certain that our staff have copies of this material so we can use it in our process in making a decision. According to our preliminary, in-house review since you propose to disturb greater than 150 linear feet of streams, it is likely that compensatory mitigation will be required by DWQ for this project as described in 15A NCAC 2H .0506 (b)(6). Our Regional Office staff can make this decision during their site visit. If adequate mitigation is required but not provided, this project will likely have to be denied. If stream mitigation is needed, the wetland Restoration Program can satisfy this requirement at $125 per linear foot of stream. Otherwise you will have to identify a suitable mitigation site and develop an approvable mitigation plan. Also if a mitigation plan is required, we will place this project on hold until its receipt in our Central Office. Enclosed are materials describing compensatory mitigation requirements for this program. Please call me at 919-733-1786 to discuss these matters if necessary. Until a mitigation plan is provided, this application is considered to be incomplete and our processing time will not start. We recommend that you not impact any wetlands or waters on your project site until a 401 Water Quality Certification has been issued from Raleigh, The issuance of a Corps of Engineers 404 Permit does not mean that your project can proceed. According to the Clean Water Act, the 404 Permit is not valid until a 401 Certification is also issued. If DWQ staff observe impacts which are not allowable, you will be required to remove the fill and restore the site to its original condition. I can be reached at 919-733-1786 if you have any questions about the 401 Certification process. Program cc: Raleigh DWQ Regional Office Central Files Nelson Paul; ECPS 970326.rovst Division of Water Quality • Environmental Sciences Branch Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper ::::::::: 11FNN ................. ...............:::::::::::::: ................................. ........................................................................ ........... rJ?OJVJe.??.vra ? coJVSUE rawrs,?.av ?sas?lr.r;?clulsrs 2 16 00BB/JII ?YdCE RAI ElGlf JVC 2.76674 1W_g1231-0636 npald?ljuna_ ?v/n April 16, 1997 WATER QUALITY PLANNNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES P.O. Box 29535 Raleigh, North Carolina 27626-0535 ATTN.: Mr. John Dorney Subject: APPROVED WETLAND DELINEATION ARBOR INVESTMENTS, L.L.C. JAMES JACKSON AVENUE NORTH MAYNARD ROAD/CARY PARKWAY CONNECTOR CARY, WAKE COUNTY, NORTH CAROLINA NATIONWIDE PERMIT 14 APPLICATION Gentlemen, Attached is the approved wetland delineation and data sheets relative to the above-mentioned project. Please review and call me at (919) 231-0636 or on my voice mail/pager (919) 406- 7562, if you have any questions. Cordially yours, ECPS, Inc. 4j"4-W, 4 - Pi Nelson G. Paul General Manager/Land Use Consultant otit t?Tq(ealys'i ,,Jack s DEM ID:rTL%?-? ACTION ID: Nationwide Permit Requested (Provide Nationwide Permit #): JOINT FORM FOR Nationwide permits that require notification to the Corps of Engineers Nationwide permits that require application for Section 401 certification WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY P.O. Box 1890 Wilmington, NC 28402-1890 ATTN: CESAW-CO-E Telephone (919) 251-4511 WATER QUALITY PLANNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES P.O. Box 29535 Raleigh, NC 27626-0535 ATTN: MR. JOHN DORNEY Telephone (919) 733-5083 ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS. SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: Arbor.Investments,_ T•.L..C. 2. Owners Address: 1005 High House Road, Cary, North Carolina 27513 3. Owners Phone Number (Home): (919) 481-1212 (Work): (919) 481-3000 4. If Applicable: Agent's name or responsible corporate official, address, phone number. ECPS, Inc., C/0 Nelson G. Paul 2216 Dobbin Place Raleigh, North Carolina 27604 (919) 231-0636 5. Location of work (MUST ATTACH MAP). County: Wake Nearest Town or City: Cary Specific Location (Include road numbers, landmarks, etc.): (see attached) 6. Name of Closest Stream/River: Coles Branch 7. River Basin: Neuse River/Crabtree Creek 8. Is this project located in a watershed classified as Trout, SA, HQW, ORW, W51, or WS II? YES [ ] NO [K 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO [g] If yes, explain. (not applicable) 10. Estimated total number of acres of waters of the U.S., including wetlands, located on project site: aDDroximately 1 to 2 acres 11. Number of acres of waters of the U.S., including wetlands, impacted by the proposed project: Filled: (see attached table Drained: Flooded: Excavated: Total Impacted: 12. Description of proposed work (Attach PLANS-8 1/2" X 11" drawings only): (see attached project plans) 13. Purpose of proposed work: (see attached) 14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures taken to minimize wetland impacts. (see attached) 15. You are required to contact the U.S. Fish, and Wildlife Service (USFWS) and/or National Marine Fisheries Service (NMFS) regarding the presence or any Federally listed or proposed for listing endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project. Have you done so? YES [X] NO [ ] RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS. 16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties in the permit area which may be affected by the proposed project? Have you done so? YES [X ] NO [ ] RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. 17. Additional information required by DEM: A. Wetland delineation map showing all wetlands, streams, and lakes on the property. B. If available, representative photograph of wetlands to be impacted by project. C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line. D. If a stormwater management plan is required for this project, attach copy. E. What is land use of surrounding property? mixed residential and undeveloped F. If applicable, what is proposed method of sewage disposal? (not applicable) _4'JVW 0NA/ENT.4L CONSUL TStNTS.4NOPL/7A1/TSPL CLAL/STS ARBOR INVESTMENTS, L.L.C. JAMES JACKSON AVENUE EXTENSION NATIONWIDE PERMIT 14 APPLICATION Question - Answer 5. The Project (see below) is located north of Coles Branch, east of the proposed Cary Parkway and west of the Town of Cary municipal offices. Access to the site is obtained from the end of the existing James Jackson Avenue, which connects to North Maynard Road. See attached site location map. 11. The projected impacts of the Project will only involve "Waters or the United States" (herein afterwards referred to as "Waters") in the upper limits of two unnamed streams. No wetlands are anticipated to be impacted by the proposed project. The impacts to Waters will be as follows: CROSSING CROSSING AREA DISTANCE WIDTH IMPACTED AREA FEET FEET SQUARE FEET 1 4 175 700 2 4 185 740 TOTALS 8 360 1440 ACRES 0.033 13. The purpose of the proposed Project ("Project" refers to the Waters crossings described above) is to connect North Maynard Road with the proposed Cary Parkway extension. James Jackson Road, the Cary Parkway extension and North Maynard Road are public thoroughfares that are on the approved thoroughfare plan of the Town of Cary and the NC Department of Transportation. The construction of James Jackson Avenue, in conjunction with other approved public thoroughfares of the Town of Cary and the NC Department of Transportation, has utility independent of any other non-transportation related development project and is able to function or meet its public transportation purpose independent of any other non-transportation related development activities. The waters impacted are the minimal necessary to construct the proposed Project. It is the understanding of Arbor Investments, L.L.C. that the construction of James Jackson Avenue will in no way prejudice the decision on an individual permit, should an individual permit be required for the development of any remaining properties held by Arbor Investments, L.L.C. Future applications for individual permits, if any, will include an analysis of the impacts of the entire project, including related activities authorized under this NWP. 14. No wetlands are to be impacted by the proposed Project. Page - 1 of 1 SOURCE: CARY, NC 7-1/2 MINUTE QUAD EIVD9AUA?A/FA/T.QL CONSUL rAA473' AOVV A*WA//T rsiracasrne a.cr?n we riav FIGURE 1 SITE LOCATION MAP JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA le j 50 C o a , o o o (NOT TO SCALE) FIGURE 2 INDEX MAP JAMES JACKSON CONSULT,avrs AVENUE EXTENSION VO ARBOR INVESTMENTS, L.L.C. R[EACK AC I1/7// s?c?acisrs,M! CARY, NORTH CAROLINA sl - '' ?? 1 `• cl LIMITS IF *4 CE P4C _ C rT' ''1 _ ' '. i •el? tea' I'?. ? I 1 SILT FENCE; ' ? ,? ? 1? t III NOTE: INFORMATION ON THES I MORR1,SVi HAS EITHER BEEN COPIED OR INTER RETI? ?JETJ f 1 1 FROM MAPS PREPARED BY WITHERS RA ' L OF CARY, NORTH CAROLINA. INF014AA ON PROVIDED IN THIS APPLICATION I) SCHEMATIC IN NATURE AN© it d qT Ir B UTILIZED FOR CONSTRU4T61 OUR OSE ? i l 1 Rti. I ? \ i SCALE: 1" = 100' E/W/RONAIENT.QL CONSUL TANTS ,WRA//T rr„nass w•l."cr .94CO rt Ar r,B.. STwCLQL/STS "7?WJ irrx r r ' t r t ? J O? II II ?! II ? ? 1 I 1 FIGURE 3 AREA 1 DETAIL JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA \ II 1'? 1 1 rT i U rT, O C) 1 r*1 1 y° i \ 1 l i ;6 O ? EXISTING 48" cmp 1 1. TO BE REMOVED _? SILT FENCE- 7T f SIL( F?NC ?wETLANDS LIMITS / l (Ii, NOTE: INFORMATION ON THESE DRAWINGS Of HAS EITHER BEEN COPIED OR INTERPRETED FROM MAPS PREPARED BY WITHERS & RAVENEL ? OF CARY, NORTH CAROLINA. INFORMATION f j I ? '? • PROVIDED IN THIS APPLICATION IS Il ; SCHEMATIC IN NATURE AND IS NOT TO BE I UTILIZED FOR CONSTRUCTION PURPOSES. SCALE: V _ 100' FIGURE 4 AREA 2 DETAIL JAMES JACKSON EN?lf70NMENTAL CONSULTANTS ANO AVENUE EXTENSION FLwAHT tr??ar?ovs?wc? ARBOR INVESTMENTS, L.L.C. S.PrCUCisrs .,....eK...a.. CARY, NORTH CAROLINA NOTE. INFORMATION REGARDING CULVERTS AND FILL HAS BEEN INTERPRETED FROM PROPOSED ROADWAY A MAP PREPARED BY WITHERS 8 RAVENE OF CARV, NORTH CAROLINA . INFORMATION N IS SCHEMATIC IN NATURE AND IS NOT TO BE UTILIZED FOR CONSTRUCTION PURPOSES. EXISTING GROUND CONTOURS 48 INCH CULVERT j. CROSS SECTION THROUGH ROAD CENTERLINE AT AREA 1 (N.T.S.) PROPOSED ROADWAY --` EARTHEN FILL - - EXISTING GROUND 15 INCH CULVERT -/ CONTOURS CROSS SECTION THROUGH ROAD CENTERLINE ATAREA 2 (N.T.S.) SCALE: (VARIES) ENf/1f70NAIENTitL CONSUL 7"rS A~O P11sOUB9W/3ACE ,WR"/T RAfel6m AC Jolrw SPLrC64L/STS ony.- -o"s ,r,.wr/&wAcAw FIGURE 5 TYPICAL CROSS SECTIONS JAMES JACKSON AVENUE EXTENSION ARBOR INVESTMENTS, L.L.C. CARY, NORTH CAROLINA ENl9RONA/ENTdL CONSUL T<INTS.4N0 PER./T S?CL4L/STS' 2?VS OOBB/NPY_ 4Ce AW eA TH NC 21604 IN19J 2." OS-767 npau/?juno. c»in April 7, 1997 WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY 6508 Falls of the Neuse Road, Suite 120 Raleigh, North Carolina 27615 ATTN.: CESAW-CO-E Subject: ARBOR INVESTMENTS, L.L.C. JAMES JACKSON AVENUE NORTH MAYNARD ROAD/CARY PARKWAY CONNECTOR CARY, WAKE COUNTY, NORTH CAROLINA NATIONWIDE PERMIT 14 APPLICATION Gentlemen, Attached is a permit application for a Nationwide Permit (NWP) 14 for the above-mentioned Project. This Project is not anticipated to impact wetlands or special aquatic sites, however, the application is being submitted as if the "Notification" general condition applies. Please review and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. Cordially yours, ECPS, Inc. Nelson G. Paul General Manager/Land Use Consultant April 7, 1997 WATER QUALITY PLANNNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES P.O. Box 29535 Raleigh, North Carolina 27626-0535 ATTN.: Mr. John Domey Subject: ARBOR INVESTMENTS, L.L.C. JAMES JACKSON AVENUE NORTH MAYNARD ROAD/CARY PARKWAY CONNECTOR CARY, WAKE COUNTY, NORTH CAROLINA NATIONWIDE PERMIT 14 APPLICATION Gentlemen, Attached is a permit application for a Nationwide Permit (NWP) 14 for the above-mentioned Project. This Project is not anticipated to impact wetlands or special aquatic sites, however, the application is being submitted as if the "Notification" general condition applies. Please review and call me at (919) 231-0636 or on my voice mail/pager (919) 406-7562, if you have any questions. Cordially yours, ECPS, Inc. VJ Nelson G. Paul General Manager/Land Use Consultant f- ...- _ *_-: =:=::::::__ ..........:::::::..........................._........._................._.._..................._..................__...........---...................................._.... ENY/i40AAoe,,v 4z CONSUL T.4NTs.4NQ PERMIT S!leCldLls7N 2P76 QOBB/N ?Y?QCE, RQLE/GH NC P7604 (N19/ 237-0636 npau/l?juna_ trim ENY/ROM",EW 4L C0A0'SULT4N7;F"Z7 /°E1?A01' T SFECIW ISIS 2216 OOBB11V APACE R4L E/GH NC 27604 [9191291-0636 npau/?/uno. mom April 7, 1997 U.S. Fish and Wildlife Service Raleigh Field Office P.O. Box 33726 Raleigh, North Carolina 27636-3726 National Marine Fisheries Service Habitat Conservation Division Pivers Island Beaufort, North Carolina 28516 State Historic Preservation Office N.C. Division of Archives and History 109 East Jones Street Raleigh, North Carolina 27601 Subject: ARBOR INVESTMENTS, L.L.C. JAMES JACKSON AVENUE NORTH MAYNARD ROAD/CARY PARKWAY CONNECTOR CARY, WAKE COUNTY, NORTH CAROLINA NATIONWIDE PERMIT 14 APPLICATION Gentlemen, This letter is to notify you of a proposed project, indicated above, under consideration by the U.S. Army Corps of Engineers for Nationwide Permit 14 authorization. Additionally, the State of North Carolina, Division of Environmental Management is considering this project for 401 General Certification. Please review this project for impacts relative to the specific area of expertise for which your agency is responsible. Please provide me with any comments your office may have regarding this project. Thank you for your assistance and please feel free to call me at (919) 231-0636 or through my voice mail/pager (919) 406-7562 if you have any questions. Cordially yours, ECPS, Inc. 4a?-? ? ?? Nelson G. Paul General Manager/Land Use Consultant ... ............................ ............................................................................................................................ ENS//4[?/?MEIVT.41 Cl7A+S'l/LT?IIVT?'.4,?#+Of?RMf,7rS?Cf.41/S7S' 22?'G ?4Q8fIV ?slG'E ?f1 £fGN /6?G' ??9f 2'.?1-???.?? npavl?'jr?no ?c?m March 20, 1997 Mr. Eric Alsmeyer, Field Coordinator U.S. Army Corps of Engineers Raleigh Regulatory Field Office 6508 Falls of the Neuse Road, Suite 120 Raleigh, North Carolina 27615 Subject: Arbor Investments, L.L.C. Request for Wetland Delineation Approval Dear Mr. Alsmeyer, Enclosed please find a survey of the wetland areas we discussed at the properties east of the Preston development on March 4, 1997. To support your wetland determination, wetland data sheets are also enclosed. Arbor Investments, L.L.C. recognizes some of the roadways shown on the plat have not yet been approved by your office and they are shown for reference purposes only. Please indicate your approval of the wetland delineation by signing in the space indicated on the plat and returning this to me. Two copies of the plat are provided for your files. Should you have any questions concerning this or any other related matter, please contact me at (919) 231- 0636 or through my voice mail/pager at (919) 406-7562. Cordially yours, ECPS, Inc. 1?? 'A.' ?J Nelson G. Paul MFG' General Manager/Land Use Consultant Q?*? enclosures /coq' • T9 ' •,,lts°F 4p RFc`???Fp /99J DATA FORM IFS ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) LA I-a I (I"(? - ?Ji-c, ,n1 Project/Site: ..;>{n,'J Date: Applicant/Owner: L o-, N v ?? rti a G. L. G County: Investigator: q:5GF-0 , ?C' . _ ,JC 5- 1 _D. a ?. l State: C? Do Normal Circumstances exist on the site? es No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: Is the area a potential Problem Area? Yes Plot ID: I (If needed, explain on reverse.) VEGETATION Dominant Plent Species Stratum Indicator Dominant Plant Species Stratum Indicator 1. L 'f--, )E+?lolrvrJ `'I,--u? T q??tC. 9. GorrJ".e GQ1 ( ? 2. 1 -4-arJ-5 OLLi?oN?c????_ F-A G(?'J 10. C-e"r ' 3.L ofa•?.4ati ?? r. 1-`?S T:-'AC- 11. F_c,.hw<i LJ? 5. NA 13. 7. 15. 16. Percent of Dominant Species that are OBL, FACW or FAC l ( s? exc uding FAC-). Remarks: HYDROLOGY Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: _ Stream, Lake, or Tide Gauge Primary Indicators: _ Aerial Photographs _ Inundated _ Other _ Saturated in Upper 12 Inches No Recorded Oats Available _ Water Marks _ Drift Lines _ Sediment Deposits Field Observations: _ Drainage Patterns in Wetlands Secondary Indicators (Z or more required): Depth of Surface Water: (in.) _ Oxidized Root Channels in Upper 12 Inches _ Water-Stained Leaves Depth to Free Water in Pit: (in.) _ Local Soil Survey Data _ FAC-Neutral Test Depth to Saturated Soil: (in.) _ Other (Explain in Remarks) Remarks: iv0 Vl?c?r_1 ir-1CJ :GOlLn 3-3 U I GJ??% J ?,I- ?, ,>J Gl, ti SOILS Map Unit Name r Q (?? (Series and Phase): C? Drainage Class: Feld Observations Taxonomy (Subgroup): Confirm Mapped Type? Yes No Profile Description: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, inches Horizon (Munsell Moist) (Munseil Moist) Abundance/Contrast Structure, etc. Hydric Soil Indicators: _ Histosol _ Concretions _ Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils _ Sulfidic Odor _ Organic Streaking in Sandy Soils _ Aquic Moisture Regime _ Listed on Local Hydric Soils List _ Reducing Conditions _ Listed on National Hydric Soils List Gleyed or Low-Chrome Colors _ Other (Explain in Remarks) Remarks: WETLAND DETERMINATION Hydrophytic Vegetation Present? Yes (Circle) (Circle) Wetland Hydrology Present? Yes Hydric Soils Present? Yes o Is this Sampling Point Within a Wetland? Yes, Remarks: 3-4 ?.1 ?r`t j-. J W ?Q?S DATA FORM r JJa(ti ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: ,?rT>Lt?a crF Pt"?arJ Date: _3 Applicant/Owner: County: q Q. Investigator: %E7C-V" , Lr1C_ - 0, `j?u l G a I State: G Do Normal Circumstances exist on the site? es No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: Is the area a potential Problem Area? Yes o Plot ID: (If needed, explain on reverse,) VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator P nluS 4Gc, Aei 1. V:-AL 9. O?c alE?l ru M crb, - Nil: n 2. Fes' S u i 10. -7,/v??(Gy _L'7nl? - r,1oy ln1 4 ?FAi_ 3. rAGu 11.x. ,emu -, -sf;N? 5`> FAC.ti 4._ 12.T+J:par. S ?/:rS;J'a?1a 5 D r'AGu S. (.1I ?v.? eel s T ,?, rACCLA 13. 6.?7rNV 5?oriolG j ??ua 14. 7. 15. 8. tO Percent of Dominant Species that ar e OBL. FACW or FAC (excluding FAC-11. Remarks: HYDROLOGY - Recorded Date (Describe in Remarks): Wetland Hydrology Indicators: Stream, Lake, or Tide Gauge Primary Indicators: _ Aerial Photographs _ Inundated _ Other _ Saturated in Upper 12 Inches No Recorded Data Available _ Water Marks _ Drift Lines _ Sediment Deposits Field Observations: _ Drainage Patterns in Wetlands Secondary Indicators (2 or more requiredl: Depth of Surface Water: (in.) _ Oxidized Root Channels in Upper 12 Inches _ Water-Stained Leaves Depth to Free Water in Pit: (in.) _ Local Soil Survey Data _ FAC-Neutral Test Cepth to Saturated Soil: (in.) _ Other (Explain in Remarks) Remarks: tJ 0 I??p1ro to r) 3-3 SOILS Map Unit Name 4- 4-19 ?j (Series and Phase): I Drainage Class: Feld Observations Taxonomy (Subgroup): Confirm Mapped Type? Yes No Profile Description: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, inches Horizon (Munsell Moist) (Munseil Moist) Abundance/Contrast Structure, etc. i ?- ? L " ? ? k ? (o ?A ?.? t? ? GIG `-, j p 4 ??" Hydric Soil Indicators: _ Histosol _ Concretions _ Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils _ Sulfidic Odor _ Organic Streaking in Sandy Soils _ Aquic Moisture Regime _ Listed on Local Hydric Soils List _ Reducing Conditions _ Listed on National Hydric Soils List _ Gleyed or Low-Chrome Colors _ Other (Explain in Remarks) Remarks: WETLAND DETERMINATION Hydrophytic Vegetation Present? Wetland Hydrology Present? Hydric Soils Present? Yes No (Circle) Yes Yes No Is this Sampling Point Within a Wetland? (Circle) Yes Q Remarks: proveo 3-4 DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Date: to X3'7 Applicant/Owner: - County: Q k? Investigator: ??(? 1 rJC a, - .1 State: ?f- Do Normal Circumstances exist on the site? es No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: Is the area a potential Problem Area? Yes No Plot ID: (If needed, explain on reverse.) I VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator Su,.1G ?? ?Z 1. 5 OIL _ ? 9. 2. 10. 3. 11. 4. 12. S. 13. 6. 14. 7. 15. a. 16. i Percent of Dominant Species that are OBL, FACW or FAC (excluding FAC-). J C? ?? Ao Remarks: HYDROLOGY Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: - Stream, Lake, or Tide Gauge Primary I icators: _ Aerial Photographs nundated _ Other Saturated in Upper 12 Inches No Recorded Onto Available _ Water Marks = Drift Lines Sediment Deposits Field Observations: = Drainage Patterns in Wetlands Seconds ndicators (2 or more required): Depth of Surface Water: ?o (in.) Oxidized Root Channels in Upper 12 Inches Depth to Free Water in Pit: tin.) _ Water-Stained Leaves _ Local Soil Survey Data FAC-Neutral Test Ceptn to Saturated Soil: tin.) _ _ Other (Explain in Remarks) Remarks: 3-3 SOILS Mao Unit Name (Series and Phase): Drainage Class: Feld Observations Taxonomy (Subgroup): Confirm Mapped Type? Yes o Profile Oescnction: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, inches Horizon (Munsell Moistt (Munsed Moist) AbundancelContrest Structure, etc. ' --. o "x?17 j T Cie, _ 1?a. ?? oy -11?ad o o G.,1r.I Q, Hydric Soil Indicators: _ Histosol _ Concretions _ Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils _ Sulfidic Odor _ Organic Streaking in Sandy Soils A is Moisture Regime _ Listed on Local Hydric Soils List educing Conditions _ Listed on National Hydric Soils List Gleyed or Low-Chrome Colors _ Other (Explain in Remarks) Rema ks: 0.1 r'-0 S flo.-rcl e A 5,-j S S - r ""?- a J" o- rl G 01 G ?i S e3 c, ?A Ge T J`w^L? .1'? T"i:7 a Cpl Q-A WETLAND DETERMINATION Hydrophytic Vegetation Present? s No (Circle) (Circle) Wetland Hydrology Present? a No Hydric Soils Present? es No Is this Sampling Point Within a Wetland? Yes No Remarks: Approvea by HQUSACE 2j92 3-4 DATA FORM Una ?? a r1 ?' : . ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: e- i Date: ? Co 19-1 Applicant/Owner: ?r 1?or 1::-" ?. 1, TT. G . County: t,JQ k Investigator: 'F-?. State: ;7C- Do Normal Circumstances exist on the site? Ye No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes o 1 Transect ID: 1 Is the area a potential Problem Area? Yes o Plot ID: (If needed, explain on reverse.) VEGETATION Domi ent Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator ` . 1. j°?? VVN.cYK 9. 2. 10. 3. 11. 4. 12. S. 13. 6. 14. 7. 15. a. 16. Percent of Dominant Species that are OBL, FACW or FAC (excluding F AC-). ( Remarks: HYDROLOGY Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: Stream, Lake, or Tide Gauge Primary I icators: _ Aerial Photographs _ Other ratedin Upper 12 Inches at No Recorded Data Available f aer Mark u ift ines diment Deposits Field Observations: _ Drainage Patterns in Wetlands D 7 Secondary Indicators (2 or more required): epth of Surface Water: i T (in.) _ Oxidized Root Channels in Upper 12 Inches _ Water-Stained Leaves Oeoth to Free Water in Pit: (in.) _ Local Soil Survey Data FAC-Neutral Test Ceptn to Saturated Soil: (in.) _ _ Other (Explain in Remarks) Remarks: i? rf?a . rl !i1 A --,S 1- 4-eA r.J a- (5 ..? !' COIP?? $:?nIC? GrJCA -f-] nn,N?'JA ?[7 3-3 SOILS Map Unit Name (Series and Phase): Drainage Class: Feld Observations Taxonomy (Subgroup): Confirm Mapped Type? Yes No Profile Description: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, s Honia n Munsell Moist (Munseil Moit) Abundance/Contrast Structure, etc. Z / t? CNv?, Q \ l ?T Hydric Soil Indicators: _ Histosoi _ Concretions _ Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils _ Sulfidic Odor _ Organic Streaking in Sandy Soils Aquic Moisture Regime _ Listed on Local Hydric Soils List _ Reducing Conditions _ Listed on National Hydric Soils List Gleyed or Low-Chrome Colors _ Other (Explain in Remarks) Remarks: i+ P?vJ I -{- f? 1n n rj . 0. n? 4--'t n [X3?? . WETLAND DETERMINATION Hydrophytic Vegetation Present? Yes '792.-) (Circle) (Circle) Wetland Hydrology Present? es No Hydric Soils Present? es No Is this Sampling Point Within a Wetland? Yes No Remarks: ?..t e . C7 rJ 1 Cis w < / . G rJ (-? e?_? "' r? r •J '' v,l „J v ?f o? n T p ?J Aoorovea ov 3-4 DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) alb .? 0_+? en sI I IAr,,_?, 1 4,, Project/Site: Date: 3 7 Applicant/Owner: Lo o r L? v? • ?,, ---f-1 . 17-C County: 7 Investigator: State: n1 C, Do Normal Circumstances exist on the site? es No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: Is the area a potential Problem Area? Yes o , Plot ID: (If needed, explain on reverse.) VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator 2. r 4P. CG C) t;L to. 3. 11. 4. 12. S. 13. 6. 14. 7. 15. 8• 16. Percent of Dominant Species that are OBL, FACW or FAC (excluding FAC-1. ?ao ?n Remarks: HYDROLOGY Recorded Data (Describe in Remarks): Wetland Hydro ogy Indicators: _ Stream, Lake, or Tide Gauge _ Aerial Photographs _ Other No Recorded Oats Available Primary I icators: ?/;aturatsd undated in Upper 12 Inches star Marks rift Lines Sediment Deposits Field Observations: - Drainage Patterns in Wetlands Depth of Surface Water: ?v lin.) Secondary Indicators (2 or more requiredl: /Oxidized Root Channels in Upper 12 Inches 3 Water-Stained Leaves Ceoth to Free Water in Pit: (in.) _ Local Soil Survey Date _ FAC•Neutral Test Cepth to Saturated Soil: tin.) _ Other (Explain in Remarks) t --t Remarks: -4-• 3-3 SOILS i,JCT lajJ As L I o-- Map Unit Name (Series and Phase): Drainage Class: Feld Observations Taxonomy (Subgrouoi: Confirm Mapped Type? Yes No Profile Description: Depth Matrix Color Mottle Colors Mottle Texture, Concretions, inches Horizon {Munaell Moist) (Munseil Moist) Abundance/Contrast Structure, etc. Hydric Soil Indicators: _ Histosol _ Concretions _ Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soils _ Suifidic Odor _ Organic Streaking in Sandy Soils _ Aquic Moisture Regime _ Listed on Local Hydric Soils List _ Reducing Conditions _ Listed on National Hydric Soils List _ Gleyad or low-Chrome Colors _ Other (Explain in Remarks) Remarks: ?? ? t'" , C.. J O l 1 P Q 1-/1 ??.? C?..?C? e)"' W? Q?? .? '? I O 0C4; '.rj ?1 ? lw JJ? 17?i O - ? WETLAND DETERMINATION Hydrophytic Vegetation Present? Wetland Hydrology Present? Hydric Soils Present? No (Circle) Is this Sampling Point Within a Wetland? (Circle) Yes No Remarks: oV H 3-4 ~ yH:ti `~X t l ( r.,,, ~~~1 " ~ ~L ~ \ l TORMWATER MANAGEMENT CONCEPT PLAN S i / ~ i a.. 4 ~ ? ~ i ` .....a 1 t ~ \ ~ ~ t r / ~ ~ N CALCULATIONS BIORETENTION AREA DESIG ~ ~ ~ BIORETENTION TOR C x AREA AREA @ 5% DRAINAGE C-FAC AREA OF C X AREA DRAINAGE t v~ ~ . ACS (ACS) (SF) AREA ID ( ) 1.31 80% 1.04 2,276 A 1.60 80% 1.28 2,787 B ~ 5.88 80% 4.70 10,241 C ~ ~ ~ 1.19 80% 0.96 2,082 D . I. 1.47 80% 1.18 2,568 . ~ '.+i E y''~y ~ 1.31 80% 1.05 2,279 F 4.57 80% 3.66 7,964 G 17.33 30,197 TOTAL e ~ ~ ~ Assumptions: I 1. ~ ~ j ~ 1 SITE PERCENT IMPERVIOUS IS 80% • ) / 2 A SAND BED WILL BE USED ~ ~ a ' ~ y , h~ V may` Or t ) AS AND BIORETENTION AREAS ARE APPROXIMATE t ~ -'mss` ~ s I . 1 ••N -••RY ~ I AGE ARE \ 3) DRAIN • ~ L DESIGN ~ DUSTED DURING FINA t ~ ` \ AND MAY BE AD ~ : E WITH ~ AL DESIGN WILL BE COMPLETED IN ACCORDANC ~ ~ 4) FIN ~ ~ ~ WATER BEST MANAGEMENT PRACTICES MANUAL ~ THE NCDENR STORM \ ~ ~ \ \ 1. \ ~ V~_ \ \ ~ •..,RK., ` .,,y` ? ~ ` \ ~ \ \ + ~ ~ \ ~ .i ~ ~ \,fi may \ \ ~'y °°0j• \ ~ . `'iii I . a? ~ ~ t \ h~~ \ \ M ~ i ; t i . .r: ~ . 17~ . AG .y - ~ f f ! y ~ \ ~`w ~ ti, ~ OR ~ ~ / \ ~ - ~ ~ ~ \ ~ `w, yam" y ~ r. ~ ~ i k o. ~ \ ~ 11 ~ ti f ~ ~ ~1- - . \ / i 't3 ~ lob' t 4 / _ ~ ~ / r ~ 1I / \ \ ~ F ~ .:....r.. ` 1 ~ i \ ~ ~ i / i 2~ o ; ; X4€3 ~ -C 1 ,4 ~ 1 j ~ i \ ~ ~ ~ \ / /la~ ~ 1 ~ ~ ~ ~ , ='til j ~ . ~ +~,~i ~ ~ ~ i1 i P i ~ t ! ~ kt t e p /n, . i _I ;s • gip., ~4-•-- t = E 1~, ! 1 . f~ - ~ 1 / ~ s , ~ J~ ~ lfi ~ f e ~ . 6 > / e 1 0 1• ~ ; - 34 R W EASEMNET 0 . , ~ ei f 1 i~ i ~ ° a • o i C4LONfAL PIPEI.I E .r.,..._.. . > . ~ ( 't r , i 1~ i ! ~l ° e • ~ ' e ~ p 1' , e f•, fe t \ / e e . ~ 1 e 1 ~ ,.,t ~e 1 i ' f • e J/;~ ~ ..,M; ~ ~ e ; e • _ ~ / a • i f • • i .•~iMllt""~"""'"w"•-~N~+*.y ti ...:'~+s.. _ .,y'""'" Mv+. wwM......, f e a • +rwM~•.O~~w.. w .,,,W.w •'••.u,.y" M,~'~.. r.r» ww~ ti•w••. ~NYN f ~ / ! ~ L \ / o ~ e• ~ ` e o ! ~ ~ • e ,..,..,,,w,.. ~ ' ~ ; ~ 1 s e • / i I ~ p ~ ~ i / I / J ~ e Y i~e.i 4 f i/~ f ~ i to I[i ~ /n % 1 % l~ ~/;'1 ~ • e• ter.. R / / q ~ f e t i ~ ~ tl • • • • W ~ \0 i ~ J ` 'iir\ y~.ti / ~ ~ der e . ar+~ . . j. " ~ S • may/ . ~r+~ • ~'~q • ~~'a' ~ ~r . • ~1I~~' ~ • - ~ • ' i f/ • o . -r?.. . ~ / \ • ~ Ir ~ '~wr »•r ..r. ~r Y•f ,,w ~ Vf /1~1M ~1Y .rM1M« y * 900 YFAR ~ , ~x~,r . ~ ~ e ~ / ~ "r' . 30 PU6 : C SANITARY w•••, ~ / ~ SEWER SEMENT . r .Q o ~ • a / ¢ i r• ~ y \ w r~ ~ / 0 YEAR 0 YEAR '4 ~--1'' ~ • ` ~ , • ~ * ~,oaDwAY ~ODWAY o ` ~ \ 80UNDARY \ UNDARY ~ ~ ~ 1 50 PUBLlC ° , / w.rw~? ~wiw~rm~ ~,,nw awMwwrs _ Y ,r.- ~REENWAY EASEMENT ~ 100 YEAR FLQQDPLAIN & FLOODWAY DIGITIZED , ~ ~ M A MAP ROVIDED BY DENNIS K, HOY GRAPHIC SCALE 1 =50 FRO ~P LE AND ASSOCIATES DATED 3/6/97 • 9 / 0 50 100 150 nil Revisions Designer Scale CAD File Dote ON EAST PLANNING o. Desch ton , Inc. PREST, STORMWATER MANAGEMENT CONCEPT PLAN W&R 100=50' L\= R 94105 Pro l)TKA o WITHERS En ir8 8nn : & SUrve Y 11g Drawn By Dote Sheet No. n Drive Catr, N. C. 27511 r»a 2tI .R0 10/30/98 :Checked By Job No. CARY WAKE COUNTY NORTH CAROM ATM var e~ 919-469-3340 jAX 919-461-6008 tH CAROLINA DW RO 94105 of . Ali-hr {{~yy-i 41- I _ { _ . 4- .r`, r ~ ! ~ s ~ ~ J STORMWATER MANAGEMENT CONCEPT PLAN 1 ~ ~ / / 1 \ I ~ 1 1, r ~ ~ i 1 BIORETENTION AREA DESIGN CALCULATIONS • ~ _ .w'~ a,.. ~ ~ ~ °rh` t ~ 1 ORETENTION BI . . ~ Y ~ ~ DRAINAGE C-FACTOR C x AREA AREA @ 5% r ~,,~h i \ . / hh E AREA OF C X AREA DRAINAG _ I ~ ID ACS (ACS) (SF) AREA ( ) 1.31 80% 1.04 2,276 A \ ` W, 1.60 80% 1.28 2,787 B '\~h y~\ 5.88 80°,~0 4.70 10,241 C G • ~ ti 1.19 80% 0.96 2,082 D 1.47 80% 1.18 2,568 , E 80% 1.05 2,279 F 1.31 h'~. 4.57 80% 3.66 7,964 G I i~ huh ~ 17.33 30,197 TOTAL • Assumptions: 1 SITE PERCENT IMPERVIOUS IS 80% ' 2 A SAND BED WILL BE USED 1 \ .~H. 4 ~ 1 ~ ` A ) ~ REAS AND BIORETENTION AREAS ARE APPROXIMATE ~ I 1 , , ~ ..f • I RAINAGE A b ~ ~ ~ 3) D AL DESIGN ~ ~ \ ~ ~ ~ ADJUSTED DURING FIN ~ AND MAYBE . NCE WITH ~ INAL DESIGN WILL BE COMPLETED IN ACCORDA 4) F • ' ~::1.. ~ ~ ORMWATER BEST MANAGEMENT PRACTICES MANUAL ~ \ THE NCDENR ST M1~ h~ t ,r' ~Y~ "`w \ , 1 \ \ 1 t i ~ • d 1 ?ti~ \ \ \ ~,Y ~ n ,,y,,`Y~, \ \ _ , ~ . ~ 1 Y . f ~ ~ ~ , I ~ I ~ i ~ / \ ~ ~ . /J( `~.1`. ~ r 1 ~ i" ~ i 2 ~ ,l ' ~ N ~ ~ I 1 , , ~ p Q OR , \ ~ I r r 2 ~ r ~q ` i, ~ mil, ++..w ..,,,w r..~'0' """.7~V ~ V ~ ~ GAMPaNY ~ _ ~ r. ~ \ ~h \ "w* •ti ~ J~ ~ . ? l ! ~ ,.1. ~ Q. \ f.• ' ri r : ~ , ~ r _ ' i`` \ 14 ~ - - _ - \ i - .w_ / I ~ < i / ~ I` ~ (z o ~ ~ r _ '`i ~ \ /r / ~ ~ ' 9 raj r ~ ~ ~ ~ 1 i 1 ~ ~ ~ ~ I ~ ~ J4 i ~i / ~ r i ! 4 !t , ? x r j • ~ ~1~ { j i P ~ r"' ` i j• , i ~f('i I 't ~y ! .l : i i Ii ~ t , Y t ~ i IC ~ ~ A ~ i , ~ 4- i ~~i tl 0 . r t . , ~ o il~~ r4 f r i o e jf1 i m - 1' EASEMNET 0 ~ . 30 R/W 1 ~ r' A t ~ J ~ A ' o ° ` y COLONIAL PIPELINE ' ° 3 ~ yw~ 'W' w.µ... wnw....YNOK • ~ ~ , * :t \ .w+w~ ,.,...r. wwmr rnr ; • Lwow ~ f,,,, . f I. _ ~ ~1 ~ ! 1 it ~ f ,l A • . e ~ r , A f#s t ~ c. ~ f r y • A .r• 1t ~ ! / A ,!f r 'f e 1 ~ , off. , ~ ~ ~ ' ' I. r ~ t rt A ~ ,.s ,t• ,ot r ~ ~ . A :-+w .....i. w`.........," ~ mow. , . . 1 , ~ / t o . : , , { ~ ~ ..eilRel,,,y~y+.wrMOi..,MMM.,Y ~ ...::~a• . ,y'4+~a ~M { ~::~.y,~ ..~muaa...nnyK~tii.'~, '~":x:.^~ .,,h - ..w~'° w"°r "'w... ~h'`... / ~ A 1 e a C ~ j / ~ ~ i y ~ ° ~~+n.,,.r~;'x..¢~~. .,.,„„;~:°.~•;.mvrR;,r~.'^.+~':«..~....~~•. w ~ wwyo m+...: j' ; ~ r A ° J e- ~ ow. ~ y..T a r~ 0, ~ 9 r r' A e ~ ~ i ~ i/~r r~ o W a • * :'xz.~, ro' mss;, w. . \ o i i r i r 1 r f+ 'r... ~ ~ is ; /i ~ ! ~ % ~l r ~r ~ A , • z a ° ° i 5 w„w r~ J~p ¢ f r~ B W ; a° Y e° a o \ rte. W ~,~o `1`"2'C rena, > ~ `V Y f .~~-r ~y . MAC ? '.+G ti. 1"+.r . `~T v` A "`...,,~"„o 'fit. `A 9~ r • e. 1 • ~ ~ M.W.. wrwr , MA 1"`"..,.. ~ ` ~ • a . ~ / 30 pUBLC SANITARY 1.00 Y ~,~...-l ~ i ,..M. .,d•'° ;Y SEWER SEMENT w..+~ f ,4 a ~ h a r-'" P."'. w.ti~ r • ~ " ~ / 70 YEAR 0 YEAR ,r- ~ . ~ ~ ~ ~ - \ \ - 80U?VDARY ~ b0' PUBIiC t / ~REENWAY EASEMENT' a ~ ° ~o. ~ ~ ~ ~ * 100 YEAR F1.OQDPtAIN & FLOODWAY DIGITIZED N , ~ EN GRAPHIC SCALE 1 =50 FROM A MAP ~PROVIDEI) BY D NfS I<. NOYLE anon a~.s~rrarFS narFr~ 3/~/A7 . • y;r'.~ 46 fQ ir t 0 50 100 150 I i ell „ , . Designer Scale CAD File Revisions r Dote Px%rjpj.ON EAST PLANNIN%X o. W&R 1"=50, . K: fAD0 94105 PJ eer ng & Surve rn Inc. Deson t,o~ W1THfRS R- En m y q~ STORMWATER MANAGEMENT CONCEPT PLAN Drown By Dote Sheet No. 1 1 1 Dave Cary, M.C. 17511 DW .R0 10/30/98 CARY WAKE COUNTY NORTH CAROLINA WITHERS 6 IL 919-469-5540 FAX 919-461-6008 Checked By Job No. 'H CAROLINA 94105 ~k ~!-if~~ ..y.~ .~~..,I~p.. Win:. fC.i,. - .~.s~_. ~_.,.-^+1Yr`fr~~.~fl~~~i'*1` ~~t-~~.. R i~AS.~ i, ~ Y Y I i % r'r 'r' L 0 L21 ~2 3 L24 6 r' i, i~ 18 4.' ' I r,r , L _1_ - ~5 ~ 3 i / /q 4 r I~ r~ I 1 ~ i w k' ~ \ `~0 ` r X27 / Llb r 0 ~ ~ r 1 0 ~ ~ t r / r I I ~ ~ ~ ~ 1 S 0 \ ~ ~ i ~ ~ 1 i ~ r L12 L13 L14 ri i r i' r ~ - r 1 h F R N ~ ?s , • ` ~ •0 ~ ~ s ) I ~ ~ _ 901 ~ ` I tN ~ 30/ ~ ~ '4Q ~ I ~ ~ ~ l 9 ~ , ~ , r~ I i ~ ~ . r w ~ r r i v ~ ~ ~ ~ ~ i' \ ~ 4• r it i!~ I~ 4' ( / 1 6 I , ~ ~ 1 ~ 'i. , ~ ~ ~ ~ ~ ~ h i ~ ~ fi~ ~ / ~ ~ I ~ f I / r , 1 11 \ \ ti`s ` ~ 1 ! , I I 4 ~ ; ~ 6 ~ r r ~ . \ I I A ~ i / 0 ~ r ~ .~.r ~ ~ 6 I , i ~ ~ r rr ~ ~ I c r ` ~ I I ~ A I~ ~ ~ ~ O ~ 1 I i ~ i~ ~ ~ I ~ 1 ~ ~ r V ~ 378 ~ I / ~ ~ ~ , . 0 r ~ ~ r . I ,W I 5 ~ ~ ~ r s ~ 5 ~ 'o i ~ \ ~ 1 r i/ ~ ~ ~ ~ + I ~ I I , ~ ~ ~ O ~ I` / ~ ~ 376 l r ~ ~ ~ 2.36~~- j / / ~ I ~ , ~ ~ ass Ac. , 1 ~ I ~ \ ~ ' / ~ i ~ ~ r ~ ~ \ ~ ~ - - ~r ~ ~ ~ ~ ~ ~ ~ ~ i I W r / % I ~ ® 1 ~ 1 i ~ 1~ i l f r ~ ~ .12A. I I 1 / , %i ! / r ®r rr / i ~ ~ ~ ~ ~ ' r I / ~ ~ °o, rr ~ ` v 1 V I a, I I r / ~ ~ ~ - ~ \ 1 ~ J \ ~ r J / r ~ ,r. i i ~ t ~ ~ ~ n / I I i ~ i I I A i'~ r i rr. i ~ i i ~ / 1 ' It r r I I / 1 t \ , / o ' ~ i ~ ~ 1 ~ t 1 1 ~ 1 1 ~ L, l ' J r 1~ ~ / \ - T T T ~ zap ~ i ~ / ~ ~ ~ c ~ 1 ~ ` ~ ---------ErTi1J W D NT~IQN ~ r~ 1 1 ~ i r i / - / + ~ / ~ a~ i ~ i ~ ~ ~ - F R PARC LS e+0o r o0 2 ' ~ / I / / O ~ ~ ~ .i n 1 ~ , r / ~ ' \ / i /eli ~ I ir. / t ,3- 1, d ) w i r i ) , ' / ' r r r / ~ ) r / r i ) ~i ~ ~ I r J, q I ~ 6 i ~ ~ ` ~ 1 1 I ti~ , ~ / / ~ ~ ~ , i / 'yi / l ~ r l ~ ~ / / ~ /r ~ l ~ i l ~ r 1 1 A ti r / x 6Y ~ / ~ / • fi ~ Fiy~ . ~ ~ / ~ / / 24i0 h ~ A r r 1 ti i ~f ii, r , 5 W ~ r ~ r I / ~ ~ ~r. / / r i r ~ / ~ ~ r / - i I ii : / ~ r ~ r ( ~ ~ ~ '.4 C ~s ( ` ~ ~ a ~ ~ 1 I C I 0 / i r 1 t t I t~ j ~ ~ / f v ~ v ~ / ~ / t , + i I I ~ I ~ ` ~ \ ~ I .O A l~,'' ~ ~ l ~ 1 v ~v ~ ~ / l I ~ ~ ~ / / ~ . ~ / / ~ 989.04' ~ ~ ~ ~ • ~ ~ ~ APPROX. DRAINAGE AREA FOR ~ ~ r / ! 1 / I ~ I I ~ ~ ~ 3 ~ W I I ~ ~ ~y . r: r rl ~ WET DETENTION POND \ , ~ ~ ~ / ' ' , / FOR PARCELS 9, 10, AND 11 ~ \ ~ ' r ~ ~ + i o' i I \ ~ \ , I, 1 j I I ~ Jl~ ~ ~ / r ' i , ' ~ A ~ ~ V ~ ' 1 r t m ~ A O / 1 @. ~ / ~ r' 1~ ~ ~ ~ ~ ~ + i I r I r ~ - 8 ly ; , ~ ~ t ~ ' ~ ,r~ , + ~ , I f , ~ r ~ _ - ~ \ 1 k I ! r l ~ J + h~ l 11 ~ 11 1 ~ ~ I I I I r ~ 'y - ~ r 1 1. ~ I ~ ST ( lrl 1' I ~ I r! , r ~ r ! l I I i o ORMWATER MANAGEMENT CONCEPT PLAN 2~S ' ~ ~ r~ r !d ~ + ~ r li 1~ r I I ~ r 1 ~ I ( WET DETENTION POND DESIGN CALCULATION ^ 1 rl I , W' 4 1 1? r ~ I ~ ~ - - > 9. 38 ~ i i 370 _ - - _ _ - ) ` - ~0 l ( I . I 11 1 Ir i ~ 1 i I ` i 'i ` \ ~ I I~, 3.27 _ - ~ j I I! IJ I I I W ` jr ~~rl ~ , f' ~ 1 ~ ' 1 0 ` i PERMANENT PERMANE ` / II 11 ( ~ I i ` i ~ ~ ~ I DRAINAGE NT TEMPORARY TEMPORARY 10- - _ ~ r ~ , WETLANDS - ~ "'l- ~ / ` W !1 I ~1l ( r,. 1 I ~ I ~ I ~ DRABQAGE POOL SANA POOL WATER U ~ s I _ ALITY YR STORM & ~ ~ \ , I r 111 ] ~ 1 i AREA IOYR Q WATER QUALITY EME 1\_-~' 11r 11 1r I 1 v. I I ~ ~ i i ' Q AREA DEPTH RATIO SURFACE POOL RGENCY TOTAL _ I ( V ~ BASIN # o STORAGE ~ tl 11 1 ~ (r 1 ' ~ , , t ~ t (ACRES) (CFS) /o IMPERVIOUS EE POOL STORAGE SPILLWAY DEPTH ~ I ~ I I ~ T) (TABLE 1.1 AREA SF v ~ ~ ~ ,~OC ~ r , / ~ . I 11 I r I r 1 I I I ) O (C~ DEPTH 1 r Il Ilr Ir I , t ~ ~ t v I ~ t 3,4,5,6 ]b.b 83,9 70% 3 DEPTH{FT) 1 / ~ ~ / ~ / l/ . 6 I j1' I Y i ~ 1 1 ~i ~ 1 ` 2.75 19,885 40,975 2.06 t I 12,13 3.73 ]$,9 70% 4 2 7.06 WET DETEN ION POND ~ ~ ~ I W / ' i I i 2.27 3,688 9,207 i ° 3 zs0 z aso FOR PARC S 12, 13 1 , 6 r ~ 1 p l fl I i l t 9,10,11 7.26 36.7 70% 3 1 ' U I ~ t\ ~ i I ' ' 1415 2.75 8,697 17,921 2,Ob 1 ' I _ I I ~21 I 11 1 4.69 23.7 70% 4 2.27 4 638 b.Ob / ! ~ 1 I ' ~ V ~ ~i / ~i~' ~ / ' f I ~ ~ 1 _ v ~ i 16 7.71 11,577 2.50 ~ ` 39.0 70% 2 8.50 r W / 1' \ 3 I I I 2.75 9,236 ~ i ~ ~ t I r I r ~ t ~ ] 9,031 2.06 S6'lb+L9I~ - ' . I ~ \ ~ I i I ~ 1 6.06 ~ rY OS EASI S , ' ~ I: ~ ` / ~ ( i t i ~ a ~ 1 ~00 19 ` ..Fj, r `I' ' ~ , . ~ 1 } 11 O 1 Q W D~J EA: _ ~_W'1 •o ~ \`I 1 t 1 ` RE IN UN ISTU 1 ~ ~ V ~ ~ ~ I 1 / ~ I ~~V 1 ~ ~ . . RE IN UN ISTURBED.I + + 1 ~ i ~ 1 ~ \ ' I / + r `a ~ W ~ I / f -F~- t~ ll aaa . t. ~ TYP. t ~1 ~ 1 ~ I `F `I. I \ 1 \ ( I t I , ~ r '~i r I + A ~ I ~ ~ TYP. ~ i i ~ I I - ~ ~ , . \ 1 / I ~ 1 \ s , ~ I ' ~ ~ `t' ~ . ~ ` II I ~ ~ I .a ~ , \ 1 ' ' ? •o \ ~ EXISTING PR ON EAST SEWER INTERCEPTOR OR ~ ~ ,E ~ ~ _ , /~i ii ` ~ N /I ' ~`aa:. \ \ - EST 1 , ~ _ \ (SEE AS BUILT DRAWINGS BY WITHERS & RAVENEL.) . 1 & RAVENEL.) o+ i i` ~ 6 - ~ _ ~ ~ ~~~i~'~ I ( II I ' /I `vim ~ , ~ \ Ih 1~1 11 ~ rj ~ `~„~ox 1 `ate A \ 14 1 i r N ~ I I `t,l aaa \ Y i t 1 a' II X / i I v I ~ `•a ~~\Y\. aaa _ ~ i N / I ~ oox ~ a . / WET DETENTION POND SCHEDULE ~ ~ AER / I ~ ~ ~ l / ~ r / ~ / ~ ~ i r 1 ~ / i ~ 1 ` •a. ate: ~ / '~`0 ^ ' PERMANENT TOP OF DAM B . / I BOTTOM OF I t r `ti. a 'i / / I _ ~ _ A i ~ r , r / ' / - ' rl' ~ 1 ~ ~ ~a a ~ # POND EL. POOL EL. EL. ' II I u . I I ~ C~ 1 ~ `cam as \ BASIN i ~ _ - , ' ~ r WETDETE 0 i i. , ~ ~ ~ t % / i- IiI' r', ~ t w ~ ~ '7 ~ . 3 a \ 371.0 WET DETENTI I ~ 1 r II ,J I ~ ^ r ~ ~ `a.. aaa . ~ ~ 3,4,5,6 364.0 367.0 I ~ N ~ ) r v 1 I II ! W t { r ovx~` aaa: \ ~ I ` 12,13 354.0 35s.0 362.5 FOR PARCEL FOR PARCELS 14 AND 15 ~ ! + ~ ~ ' ~ ` " ~ ~ ~ + ; ~ ' , ; li II ; ~ r ~ °g ' a~ . r ~ ~ 376.0 ~ \ . 1 370.0 373.0 I q I r ~ ~ 1 `c. ~ ~ v ~ 9,10,1 / , ~ i ~ - + I I' I~ i / ~A + I i r--- II r II ~ ~ w ~ tea. / ~ aa' \ \ ~ 358.0 362.0 364.5 IU ! I ~ ti ~ I 1 fi. ``ti 14,15 II I ` t x ; pp i ~f ~ ~ , - _ - ~ ~ J ~ II 1 N i ~ I ~ ~ `c•s ~ ~ \ `3s l6 338.0 341.0 344.0 J 1 I W \ ~ II I I \ ~ I \ \ I 11 n i ~ 1. a. C i I 4 \ I 1 J 1 II V ~ \ ~ .fix ~ \ I , ~ ~ f ~ I i i II I q. t I ~ I I Op ~ i ' 1 W ' I ~ ~ ~ v' ~ ~~a. \ APPROX DRAINAGE AREA FOR II ~ I ^ x ~ \ - + ~ ~ 1 <S E AREA FOR - ~ / , ` EME ~ J II 1 + A I I ~ ~ \ y` Yak.. 3s i \ ~ PORTION OF PARCEL 15 ~ 1, n 1 1 i I ~ ~ ~ ~ ~ 'aaa \ % / 1 i ,a r ~ - S egg. u 1 1 II 1 ~ ~ 3S `aa SERVED BY WET DETENTION P( II r ~ t \ ~ / ~fa,~ ys ~ `ate-, \ II , r „ ` ~ ~ FOR PARCELS 14 AND 15 DETENTION POND ~ i , 5 ~ _ / . ~ 1/ / 1 / i^.: AND 15 ; ' / y , ~ ~ ~ s ea~5o , 1 1 1 fl . ~ i I N ~ ~v ~ - `v. - / , ~ t ~ ~ / ~ --"i? 187.30 , ~ i ~ / ~ ACS u 1 I r N. ~ ~ ~ A MANA EM N ~ ~ 1~x--<- / I ~ FO SHOQp~NG CEt~-STORMW ItK G E~__~ ~ ~ ~ ss a ' \ i~ % i'//~/ + /0.9 -Z` v.~"/~-- i 1, I d N r I ~ ~ A ' N WITH THI SUBMFfAL `c `a - - - N 1 ` I n ~ , E "FF1E CONCEPTU C StTE._P1AN--1 6L1a0E6 S ) aaa ~ . . ~^•a \ ~ ~ i i iiZi ~ A _ ~ ~ ice' ~ • ! i II 1 J1 it . ~ L _ _ _ \ _ ~ - ~ ~Ox6 a ; ~ _ ' . _ II 1 y r ~ ~ ~ ~ 17.8 f .a ~o- ~a ~•'r.'" , J / O , • ~ / / ~ % L r . / / ~ ~ / r ~ ~ ~ 9. r" ; 86 l - ; ~ 9- ~ ~ ~ , l + , ; ~ 6 \ 1 /il . 34 ~ i i / v`~ U 1 'JV'll ? ~ t \ \ 4\ --,8 I I! ~ `•l. al `r . 1 ~I`~~~ I ` ~A ~ ~ ' r~ x ~ ~ ~ . ~ ~ \ lY 1 1 1 ~~y0 ; ~ 1 t \ a \ I' 1 1 i' i - I 11 I I o, ,,III ~ --t ~ II t li ~ I 1 3~ f ~ ! j1 ! q c~6 I N I ~ t 1 app '7 I ~a ~ \ 1 i J! I I ~ ~ ~ ~ ~ ~ STQRMWATER MANAGEMENT PLAN N T OES i , ~ , , ( c r"t-p 1 u i 1 f I ~ ~ o ~ - - 1. THIS STORMWATER MANAGEMENT PLAN HA5 BEEN PREPARED T M TH I M OF ~I I r 1 1 \ ~ 1 r! I 1 1 I i x ; ~ \ 1 ~ 1! ! W ETENTI N P D \ ,o ~ ~ - %'s 0 EET E REOU RE ENTS ~ 9,\ `o~~x .~a~ ~ ~ i RULE NCAC 2H .0506 PART (b) (5) FOR THE DENR 401 WATER QUALITY CERTIFICATION I i ' e I ~ i ` ' ~ ~A6 ii ~ r i, F R PARCEL 116 ` i ~ I I V I , I 1 ~ ~ , I I \'y 1 1` M II ~ i l Wu 1 y rr i! r I i I t~ I ~ ~ `~s ~o` \ 2.0z AC~~, - _ _ 2. THE STORMWATER MANAGEMENT PLAN WILL BE ACCOMPLISHED BY THE FOLLOWING SCHEDULE o ~ ~ a 1 r l i _ r I ` 1 ~ ~ i t ~ ~ z o ~ - , PARCE N0. 1 1 1 ~ ire 1 i - ~"r~ - I ! r i I I ~ , ~ 1,2 NO ON-SITE STORM WATER BMPS WILL BE REQUIRED ro 1 1 1 Ii : I Pr 't t, - - I I ~ G!~ i I ~ 1 1 1 II I ' ,1•'' ~ ' LOODW 1 ~ i i~ , r~ I I 1 ~ , , \ ~ ~ 1~~. ~ _ 7,8,9 INDIVIDUAL SWMP TO BE PREPARED AS PART OF FINAL SITE PLAN ~ I 1 1 1 ~ ' I \ t i _ _ - ,,,r,__ ~~1, I : i! ~ I ~ 7.71 ~ ~ ~ ~ _ _ _ _ ~~a . ~ , _ SC (SHOPPING CENTER) INDIVIDUAL SWMP TO BE PREPARED AS PART OF FNAL SITE PLAN 7.71 C. ~ \ ~ ~ ~~a.~ ~ ~ ~ o`~ ~ ~ ~ 3,4,5,6 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON ~ ~ ~ ~ ~ ~ c, f/' PARCELS 4,5 TO SERVE PARCELS 3, 4, 5, 6 ~ 1 1~~~~~ 1 I ~~~r' Vic,,.-•1' ' J 3 \ t L - i' ' ` ~ ~ ~ ~ \ ~ °o\k ~ ~ _ 14,15 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON ~ ~ ~ x ~ ~ ' ~ i ~ s, ~ a , PARCEL 14,15 TO SERVE PARCELS 14 AND 15 J . ~ - - ' -~l ' 4 \ ~ as • ' ' A WET DETENTI N P N WI I N N < ~ ~ / 9,10,11 0 0 D LL BE NSTALLED AS SHOW 0 ~ ~ ~ ~ PARCEL 11 TO SERVE PARCELS 9, 10, 11 ~ ~ ~ ~ as ~ / / 0) 1 1 1 II . t ~ 330 1 I \ \ ~ _ ~ ` \i A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON a\ ~ ~ ~ ~ 12,13 PARCEL 13 TO SERVE PARCELS 12 AND 1 8 , . a\ ~ o ~ 16 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON ~ 1 / PARCEL 16 TO SERVE PARCEL 16 ~ o x` ~a~ 3. DETAILED DESIGN AND MINOR REVISIONS OF THE STORMWATER BMPS WILL BE DEVELOPED AS _ 1 I II •t ( \ \ ter-. "~~-~•..u,.,, 1` _ ~ ~(11 ~ PART OF THE FINAL PLAN PREPARED FOR THE PARCEL WHICH CONTAINS THE BMP. ~ • ~ / ~ ~ ~ ` 4. ALTERNATE BMPS WHICH ACHIEVE 85~ TSS REMOVAL MAY BE USED IN REPLACE OF ~ ~ ~ 'f` a~~ra ~ a WET DETENTION PONDS IF THE ALTERNATE BMPS ARE MORE ADAPTABLE TO THE FINAL SITE PLAN. 1 1/1 N ~ /~~'~Vv~v ( - ~ • ~ ~ 1 ~ 340 \ - • ~ ~ ~ GRAPHIC SCALE ~ 1 / ~ ~ \ ~ 1 Ni i 1 N " ~ / '•1 ~ r ~ ~ I 1 II ` - li ~ 1 111 ~ _ ai - ~ ice. lJ c-1 ( IN FEET ) L 1 inch = 100 ft. Revisions Designer Scale GAD File No. Description Date B PRESTON EAST INDUSTRIAL PARK 'ARK OVERALL STORMWATER MANAGEMENT PLAN W&R 1"=100' Drawn By Date Sheet No. a Withers Ravenel Engineering and Surveying, Inc. 'cD D W&R 11/13/98 ° 110 E"p"EER5 111 MocKenon Drive, Cary NC 27511 Phone: 919-469-3340 Fax: 919-467-6008 CARY, NC Checked By Job No. W&R 94105 of . 0 „y^ } c r 6 ~ ? ' ` / L 1 L24 / E ' r i,%/ L17 I? ~ ? T- i - ` "'r""- u ~ ~ w" \ ~3gsz6 ~ E L16 , ? ? / ~ ~ t o p ~ ~ ~ ~ ~ 7 S O \ L12 113 L14 r~~ ? ? r ~ - ~ / rf r l ~ ~ ~ / I l h \ F `I'1 ~ ? I / / ~ ~ i tic. ~ ~ V 1 ~ w / V i RAI { ~ ry ~ ?9 ~ ~ ~ g r k ~ , _ 90 • I ~ \ Rp ~ ~ i ~ \ ~ ~ \ ~ ~ 4 <3~ ~oV`~~~~ A I I 1 , ~ f ~ , I I ~ ~ ~ ~ I \ \ / / ? 4 { r r ~ ~ ~ A ? I ~ v \v v ~ ~ ` ~ ~-I v / r ? ~ ~ ~ I ~ 1 ~ ` i ~ ~ l / I ? . ~ , ,p'h I ~ ~ / ~ _ 378 ~ ~ I I h r i ? / h ~ ~ L r , ~ . f I 1 ~ J ~ .~f I t ~ i ~ ~ ~ ~ ~ ? ~ ~ ~ ~ 376 I l 1 ~ ~ 2,36 ~'v ~ 1 i ' ~ / r ~ ~ ~ / / ~ ~ 1 .69 AC. l ~ , ~ , ~ ~ / ° _ 1 ~ r I I ~ ~ \ 1 + . ~ . c ~ ~ , ~ _ ~ ) l / I? s 1 , I t ~ ~ r t ~ I ~ , a / ~ ~ .12A. ~ I / \ \ ) . , , 1 1 A ~ I + \ / ~ ' / ,r ~ 1 ~ ~ ~ I I I I i , I ~ r t ~ r ~ /i / • ~ t / ~ I n / l / ? ,r. i 1 ' V ~ 1 ~ r ~ ~ ~ I i i ~ / + , ~ ~ ~ ~ 34 \ ~ ~~i ~ ? /i , ~ t t ~ 1 ~ / ~ ~ r 111 \ ~ ~ i r I r ~ i ° i ~ , ' ~ \ ~ t `.'MORRIS r ,J i I \ \ _ _ _ r ~ I l ~ - - v ~ ~ ~ , , I / - , ~ ~ j , ~ • , t ~ _ ` F R PARC LS ~0; +ao / ~ ~ _ J J 29+0~ r _ ` J / ~ .i ~ ~ n I ~ i / 4 ~ ~ ~ i i . / 1 \ - 1, ~ 0 ~ ~ / i ~.1s,~~ ~ ~ ~ / ~ , ~ 374 6 ~ / / / - ! / .v A ~ / J / ~ ~ J l / ~ j ` ~ ~ if ~ I 3~ A \ ~ ~ ~ ~ '7 ~ / ~ ~ ~ l r ~ ~ / ~ / ~ i / / 4 l - , ~ / / ~ , / ~ / / / ~ 'tii I / ~ ~ ~ ~ i~ ~ ~ O l l 1 A 6 / ~ i I / / ~ ' \ , ~ ,r . ~ • • ~ , / .,.,,1„•, ~ ~ ~ / J ~ , rr I M / ~ ~ ~ ; . / / 1 / ~ N ~9 24 ~ ~ r ' rr r r ~ 1 ti, ~ r f? ~ ~ r r , r05° W \ ~ r ~I i / r r - l"' / ~ ~ r ~ r r / 97 i i ! ~ • 1 ~ I ( Y~ ~ ? ~ / r ~ ~ , a r < ~ r I / >I I t 11 I l ,f l / , r ~ 1 i ~ 7/ ~ ~ ~ ~ , / r ~ / , / a ~ ~ / i I 1 i 1 A / / r t i \ ~ \ f I i~ ~ / / ~ . / / / / 989 ~ , ~ ~ ~ / / ~ ~ i. ~ l 4 V ~ ~ \ t r ~ r / ~ I 1 ~ ~ \ ~ / f / ! 1 ~ ti f ~ + I ~ ~ ~ ~ icy X38 \ I ' ~ ~ ~i ' / / ~ / APPROX. DRAINAGE AREA FOR ~ '``1~~~ ~ r / i ~ I I V A. ' A ~f ~.i ~ t + ~ ~ A \ ' w I I a / i~ r • l ~ WET DETENTION POND ~ ~ . ~ ~ , '1 I ~ ~ J ~ , ` ~ f FOR PARCELS 9 10 AND 11 ' ~ ~ / / ~ 1 ~ + + ~ ~ ~ u / ~ I r , I I ~ \ ~ \ t , ~ ~ . , _ ~ v ,i . ~ r / l / v ~ A ~ ~ ~ ~ ~ ~ /11 1 r ~ ~ / ~A r 1 r y~ • l ~ l ~ Ilr I 1 ~ l ~~i ~ ~ ~ ~ l / ~ ~ I I I I I / 1 ~ ~ ~ \ ~ - ~ r I ( ~ ~ ~'1 \ 1 r. r l I I 1 ~ l ~ 1 A V V , 1 ~ A ' Y rl ' F; 1 '1 ~ I r ~ r r I I ~ >>j i ' 1 I ~ , l , ~ I r1~ r I, i ~ ' I ' I I 1 ~ ~ o ~ , l,f r l I I I o~ ~ I ,,I f, ,J I ~ I 1 1 r ~ + ~ . i ! ~p 8 370 \ 1, I i 1 ~ '`mil ^7 r/ q l ~ I I I I ti - ~ w ~ I II 1 ~ ~ / a, ~ / I I 1 I S~ ~ 1 1 t. I I ~ 2• l~ Irl r ~ 11 r ~ , / J I I I o STORMWATER MANAGEMENT CONCEPT PLAN 2,~. ~ r r 1 ~ 1 ~ I ~ I ~ ,1 I 1 WET DETENTION POND DESIGN CAL r 1 1 ~ i CULATIONS ~ I 11 I ~ \ J w' l 4 1( 11 / I ~ ~ t ~ ~ + ~ ~ it 1 ~ - ~ _ _ , + ~ - ~ a 1 , J s i I 310 ~ +~~f 1' j ~ 4g. / 1 / Il 1 f1 ( 1 ~'Y~ ~ c~ r I ,,IJ, 1 w ~ I 3.27. - - ~ x ` I j! i ~ )jl ~ I ~ 1 1 1 0 1 I PERMANENT ` 1 t PERMANENT TEMPORARY ~ b J i•; I t l ~ t , 1 DRAWAGE TEMP 1 ~f' WETLANDS %'G ` y. , W w / Il 1 ~lf ; r• / I I t l l t 1 DRAINAGE POOL SAlDA POOL WATER U ORARY l0•YR STORM & ~ / I r 4) 1 9 I I l t 1 AREA lp. Q ALITY WA 1j r 1 11 ~ J w t t t t t l , Q YR AREA DEPTH RATIO TER QUALITY EMERGENCY TOTAL ~ c~• _ I ~ BASIN SURFACE PO \ • 11 • r ~ , 1 # ACRES o OL STORAGE / II fl' 1 I If ~ ' t , t 1 ( ) (CFS) /o IIv1lPERV10US (FEE POOL STORAGE SPILLWAY DEP ~ - lr Ill 1 r r , f 1 t 1 It t 3,4,5,6 (6.6 T) (TABLE L1) AREA (SF) (CF) DEPTH ~ , I 11 1 r , r ~ ~ t t I 83.9 70% DEPTH (FT) ~ ~ ~Ir l y ) 1 I I I t s t~ 3 2.75 19,885 40975 ~ 1 1 t j(~ ~ / w ~ I I ~ 1 12,13 3.73 18.9 70% 2.Ob 2 7.06 ' ~ l I / ~ t 1 4 z.z7 3,6sa WE:I' DETEN ION POND I 'I o / 1 1 , 1 9,10,11 726 36.7 70• 9,zo7 zso 2 a. FOR PARC S 12 13 > > 5 ~ / I 1 t ~ /0 3 2.75 50 ~ I , 4 \I ~ / i / ,~~i / / / ~ / / 1 `J I ~ I 14 ] 8,697 ] 7,921 I I . ~ ~21 , ~ 1 , 5 4.69 23.7 70% 2.06 1 6.D6 r I t I _ 4 4,638 , 2.27 11,577 2.50 ~ I ~ ` ~ ~ t 16 7.71 39.0 0 2 w I / ~ ~ ~ 70% 8.50 I I ~ , ~ 3 2.75 9 ~ ss~tb+ I- _ r r . r I ~ a ~ 1 , 11 1 ~ ,236 19,031 2.06 I I d ~ - ~ ` ~ g~ / ~aa ~ t 1 11 1 W 1 1 6.06 ~ ~ \ \ \ l ~ I ~ L9 r `I ~ ` , ` 1 O ` O W DS ~I S' ` ~ ~ 1_ ~ Op.. ``7`\, 1 ` \ 1 ~ l 1 \ w ~ r ' _F7_ t-_ ~~1 . ~ ~ RE N UNI STU~BE DS EAST SH { 1 ~ I: / ~ , r' I t I + ~ . N UN iSTURBED.I ~ 1 i { i ~ ~1 \ ~ + I i ~ ~ ~ ti + ~a ~ i ` ~ ~ ~ I ~ I + + f i ~ + I 1 r ~ ~ ~ ? ~ ~ ~ 1 i i ~ ~ V + \ . ~ { ~ ~ ~ I 1 ~ I% ~ i li ~ ~ ' I ET P ND + ~ ~ ~o`~ I rr ~ I i i 1 C.~ ~ 1 ~ ~ `~9 ! ~ ~ + l 1 , I °p \ EXISTING PRESTON EAST SEWER INTERCEPTOR TOR I i it I' , '1 ~ ) ~ \ ~ \ ' ~ ~ n~ ~ ~/i . / ~ n i II 1 1 v p /I ~ as ~ _ 1 I ~ ` ~ (SEE AS BUILT DRAWINGS BY WITHERS & RAVENEL) / a \ ~ . _ _ RAVENEL.) a i / ~i wr 360 ~ Q~ ~ ' I 1 1 t 1 . v~ 1 Ilk / i I 1 1 may`` `aea i n/ I I :'I I .~oo,,z L~ • ~j.--~'' •i WET DETENTION POND SCHEDULE I 1 ! ~ l ~ r r if BOTTOM OF PERMANENP TOP OF DAM / / / ~ / / / M ' ~ 1 1 ~ a. ~ II I ~ 1 . t I ~ c' ` ( u `x as ~ ~ BASIN # POND EL. POOL EL. / 1 1 \ I a / . I ~ I r F i f ~ ~ ) .3 ~ . ~ / 364.0 3° .0 371.0 WET DETENTION I q ~ . ~ r f \ 3,4,5,6 11 ~ 0 I II 1 w ' ~ rl `~~c oDxy` aa. ~ ~ ~ I 1213 354.0 35..0 362.5 FOR PARCELS ET DETENTION POND ; , . , ~ ~ t ~ ' ~ = _ 1 / / f ~R PARCELS 14 AND 15 i r / / , I , , ~ - 1 , { , , ~ II N ~ C' J l ~ a: I ~ I I 1 - I I 376.0 0 II t 1 1 ~ ~ ~ \ 9,10,11 370.0 37..0 ~U rr I u ~ ~ N ~ t , `.,Zl `a ~ 1415 358.0 36;'..0 364.5 I 1 8 1 ` I o \ ~ I 1 i i 1 0 °pxs ~`r \ ~ 344.0 J , i i i ~ ~ ~ ~ ~ I - - ~ r 1 ~ i I ~ - ~ / II H I 1 , 4 ` ~ \ 3s 16 338.0 341.0 / i 1 ~ / ~ ~ I ~ r / I ~ 1 ` ~ 3 ~ r. as I /I ~ 1 II \ t S4 ~ \ \ ` _ ~ it / 1, I 1 ~I ~ I 1 \ ~ / cy~ y.~ ~`a ' ~ ~ ~ r ~ ~ ( I-- o ~ _ , / ~ a r I ~ ~ . - APPROX DRAINAGE AREA FOR 1REA FOR ' ! / -~3~° / _ A , r1 _ r•' EME ~ 1 1 ~ y. ~ I , II ! , I ~ ~ ~ ~ PORTION OF PARCEL 15 a l l n I ~ ~ a ~ 3S ~ a ~ -r-.-~• i 745 65 ' II I I n i 1 I I ` ~ ~ \ 2 o x., as SERVED BY WET DETENTION PONC II I 1 II I ~ ~ ~ ( FOR PARCELS 14 AND 15 N / 1 / ~ _ _ S 199. TENTION POND ---_J - / I / ~ l S r 1 1 it : , 1 \ ~ _ 1 ~ / y , ~ / ~ , ~ _ . S 85'50'0 / / ~ .s`-7 f 87.30' U I I I / Y ~ ~ I -1 ~ 1 \ f0 SHO G CEIlTER -sfORMWAI~ MANAGEMEN _ _ ~ ~ ~ ~ • ` ~o,--<-' ez , - - - - _ _ _ _ _ _ p I ~ I u \ 1 ~ _ E ~E CONCEPTUAL`SiTE~'LAIl--IN6L-UDE6 WITH THIS SUBMF(AL 3~ ,i \ - _ ; ----J - - ~---r I I u i r / ~ i ~ ~ ~ --i II 1 I 1 II ~ ~ ~ ~ ~ ~ ~ ~ li 1 I 1 N ~ 1 L--- I. ~ ` ~ 17.8 ~ f e ~ ~x ~ i - „ ~ r C- ~ W , ~ / / J / O / ~ y I ( ~ e 1 ~ ~ ; s II 1 i 1 If i. 1~ ; ~ ~ \ _ ~ _ --,-J v P \ ~ i ,r h i ~5~, . 8' r II 1 I ( II 1 •1 Y ~ ~ - \ ~ / ~ -y iT i aa. t ~ ~ ~ ~ ~ ~ 1 1 ~ ~ II I ~ III. 1 \ ~ 3 ~ ~ I1 I- i":.. " ~ ~~yl II 1 I Y II ~ - - - - 7 1 II < 1 J+ 1 I h. 1 ~ 1 ~ f 7•. ' h. `~6 A\ ~ Off; ~ ~ ~ ly Iii F ,yo I rt 1 ~ ~ ~ I • ~ 1 I ` t ~ 71 I I I i 1 ~ ~ 34~ , i. i 3 56 1 I ~ ~ I ! i! i a0 I f ~ ~ ~ ~ ~ ~ ~ STORMWATER MAN I -ti AGEMENT PLAN NOTES r'"-t-P f p I i~ t~ i, w 11 ~ 1 ii it ~ t I ` } ~ I I I I I r 11 i ~ ~ \ 9 , o \ \ ~•~s ~ S STORMWATER MANAGEMENT PLAN HAS BEEN PREPARED TO MEET THE REQUIREMENTS OF ~ ~ ; ' / RULE NCAC 2H ,0506 PART (b) (5) FOR THE DENR 401 WATER QUALT(Y CERTIFlCAI'lON I 1 1 1 I i'' 1 ~ ~ i! i W f rDETENTI N P D I 111 ~ i 1 i, 11 ~ A6 i ~ i Fi P 1 ~ i ~ \ ~ \ I 1 1 II ; ~ • w r ~ ~ , 1 ARCEL 1 6 , ~ \ 1 j e II ~ I ~ qrr 11 li ~ I r /r~ ~ r I ~ I 1` ~ ~ ~ J~ ~ ~a' 2.@Z AC\ _ ' ` 2• THE STORMWATER MANAGEMENT PLAN WILL BE ACCOMPLISHED BY THE FOLLOWING SCHEDULE ~ ~ ~ I I II i ~ 9 : 1 \ 1 1 1 il. i t i •1 ~ - ~ + i' 1 i I I 11 I i!~ 1 \ ~ \ ~ PARCEL N0. I . r. _ M l ! ' 1 > 1 1 1 II ~ ~ 1! 1 1 t r,.r" ~ r I f 1 Q I 1 \ ~ \ , \ - - 1,2 NO ON-SfTE STORM WATER BMPS WILL BE REQUIRED 1 \ •~~v ~ A \ ~ A, ~ o- co I 1 A: I Il~r 1 1,O I I 136 1 ( .l~ f I I I I I •rr ~r^ _.J I I ~..r I r / ~ G!L , I ~ ~ 3g • ~ ~ ~ J;~ 7,8,9 INDIVIDUAL SWMP TO BE PREPARED AS PART OF FNAL SITE PLAN w I I I II • , i i Z'~a__ f r J i s t ~ 7.71 C. ~ ~ ~ SC (SHOPPING CENTER) INOMDUAL SWMP TO BE PREPARED AS PART OF FNAL SITE PLAN 7.71 C. ~ \ \ ~ ~ ~ . ~ \ ~ ~ 3,4,5,6 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON \ ~ \ ~ ~ ~ ~ ~ ~ • ~ ^ PARCELS 4,5 TO SERVE PARCELS 3, 4, 5, 6 \ ~ ~ a ~ ~ I r1r' II f rr.f' 1~. 3 ~ 1 L ~ _ _ ` _ ~i i i 1 1 1 \ °0xk \ : ~ ~ _ 14,15 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON ~ ~ ~ i / / sr ~ a' ~ PARCEL 14,15 TO SERVE PARCELS 14 AND 15 ~.c < ~ ` ~ 91011 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON ~ ~ ~ ~ ~ , ~ ~ / PARCEL 11 TO SERVE PARCELS 9, 10, 11 rn ~ I I u j%-~"~` i t~ ~ II xl ' ~ 1 Z~z~- 35p ~ ` 1 i A WET DETENTION POND WILL BE INSTALLED HOWN ON ~ 1 ~ ~~o 2, 3 PARCEL 1 T AS S =a~' ~ / : ~ ~ \ 25.0 ~ - , ~ \ , ~ ~y - 3 0 SERVE PARCELS 12 AND 13 ~ ~o ~ 16 A WET DETENTION POND WILL BE INSTALLED AS SHOWN ON r ~F it 1 ` - \ ~ = ~ - ~ 1 ~6 1 PARCEL 16 TO SERVE PARCEL 16 t ~ _ ~ ~ ~ 3. DETAILED DESIGN AND MINOR REVISION F TH 1 I ~ I it ~ 1 - I \ `t.- ~ ~ ~ ~ ~ S 0 E STORMWATER BMPS WILL BE DEVELOPED AS _ ~ ~ { PART OF THE FINAL PLAN PREPARED FOR THE PARCEL WHICH CONTAINS THE BMP. , ~ ~ ~y ~ 4, ALTERNATE BMPS WHICH ACHIEVE 8 T Sg N I - -ice i ~ ` ~ ~ , 1 _ `1~ _ °~x~`~ W 51e SS REMOVAL MAY BE USED IN REPLACE OF - _ \ ~ ~ p ~ ET DETENTION PONDS IF THE ALTERNATE BMPS ARE MORE ADAPTABLE TO THE FINAL SITE PLAN. ~n \ ~ I I I it ~ 1~1 1 1 ~ i I 1 II• w ~ -.~i~--~ ~ ~ j'"' PI 1 ~ 340 - • 1 ~ ~ ~ GRAPHIC SCALE I ~ ~ ~ \ 11~ loo 2 l ~ \ 0 50 100 200 400 I 1 n • _ ~ ~ ' + 111 _ m m ( IN FEET ) r N 1 inch = 100 ft. lfl Revisions Designer scale CAD File No. Description Date B Ravenel Withers a W&R "=100' ~RK OVERALL STORMWATER MANAGEMENT PLAN Drawn By Y DatSheet No. _cD 'A Engineering and Surveying, Inc. W&R 13 98 'ID CARY, NC 001 " a'p" 111 MacKenon Drive, Cary NC 27511 Phone: 919-469-3340 fax: 919-467-6008 Checked By Job W&R 105 of . / a 4 - _ U. 20i0u0~Y'-OOfMNioCD^~FN^OnCOaDV~Wh01010pn~-O)~-17~ ~OI'1MaDhOaDWnOi0f0^Mb^N^nbnN.-~}a}.-nvn.rv W W W W W W W 0,104)M4)^n 2hu):-ap ZroNNhONaMN~o,N 2vhm~ 2roo,i.Nh~heu~rn 247 2~r0^~rn~rrnio ~ moo^rnro0^Mro (r100'-7NO~oDNNtlO,~-1~f~t~riviNOiMI')I~0~-0~^O~Fd ~Nv1~'IOO~OMhh~-bbNO~n7hb411'1V7~f1NIOMONMMI'1~ n~~nl~Vn7^N~OnOiOQ10 Vl •~~t l~Vi l'npN 2~, M)~I~OIN U U, U U, U U Z'.,~4I iF ~-Oip tie} ^ as hv~MOiao,mN4)^N ro Q QMoOn~n QanNrn^OnnONNro QhnMa QOroMMOO~nN'an QnM QIgO)MNOWOn .O~-O~•-O~tOilOriCi~}I+jOioillll~ujoi7400'- h•~hl(jOU)OOMj I- F- I- 4- F- I- tifOh01`loilOfO~YOM fit^Of Olnan4) Vf 1047^4I ~I~t\l~Of~.-t; ~}eDNV~V~ r~riMrV aO N^I~Op Oi •~a0~^Na0 a t0havf~uj Oil uroMONMMMMnu)anu)NnMroau)NInOb VI^ t/1 2 VINOOnfDOnM4)h ~^NM^ ~^w~nfnae^nfnhroo afolDaN QMbMOONOINu)N Qapco ~NAWMNOfaa J ~ ^N ^N^N 0 3333333333333333333333333333333 Uz :33333333333333333333333 V WWW33WW ~ 33WW ~ WWWWWWWWWWWW ! 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WETLANDS MAPPING Drawn By Date Sheet No. CONSULTING ENGINEERS P.A. f MED 3/14/97 - (919) 469-3340, FAX (919 467-6008) Checked By Job No. MED 94105 of ~ 1 r ~ 1 :.M,...,,; ~ ~ I ...~L ~ t ~ rr ~ r',i ~ ~ f 1~ i ~ ~ / ,o ~ ~ l t l I t / ~ • ~ ~ ~ , 1 ~ 1 ~ _ ^ .1 ~ ~ ` . c. ' . I I ,,,._._Y \ _ . ~ ~ 'yin 4 y. ~ ~ ~ ~ ~ u ~ ~ , 3 ~ :~W b_.~t~ I~ ~ ~.i I. ~y ~ - 3 I '~a i . 1 ~ ~ ~ / l ~ ~ r. ~ , / ~ / ~ P ` fi ~ l ~ / ~R ~ ) ~ / .d' r ~ ` 1 \ ~ ~ \ \ \ ' \ ~ ~ + '1 \ ~ ~ ~-a. 1 ~y 1 + `ti ~ T \ V- ^ ~ ~ . 'w ~ I t \ ~ ~ , ti.; ~ ~ ~ \ , Y \ \ ~ \ ` ~ , `ti` ` \ r ~ ~ ~ ~ " ~ \ . `y 1 ~ s \ j / mow„ , :.w,,, ~ i • ~ ~ ~ ~ ~ `1 i r . 0 / . 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V 'r'te : -.r^"~ tJ d o ~ . l . rrr~ • ~ ~ . r ~ "'fir, ~ '1.7 m~°~ \ . \ ! • ~ V mod r~~ / ~ J ` /r m ~p 1 I • ~ / ~'1'' 30 PUB ANI • i~'~ . 100 YEAR . , ~ ~ SEWER EMENT ~ ~ t~NDARY • ,4 ,,r f . _ ° 4 ( . 1 .r' r / ~ ~ ~ , • ~ ~ oo Y~aR ? / ~ FLOOQWAY EAR ~'"r WAY / ~ l .r / ~ ~ OUN ARY ,4RY ~ _ • ~ 5D' PUBLIC ~ • praaot~rrw 'a°°r""ano'u eta ~ ~ ~REENWAY EASEMENT J \ , rrt ~ 1 ~ r00 YEAR F~.O DPLAlN & i=L00DWAY 4 u IGITIZED . ~ • r t • • t s ttt ~ • • ~ • t • t FROM A MAP ,PROVIDED BY DENNIS K, HOY~E GRAPHIC SCALE 1"=50' AND ASSOCIATES DATED 3/6/97 IL __j 0 50 100 150 Y Revisions WITHERS & RAVENEL Engineering & SurveYin9, Inc. No. Description Dote s PRESTON EAST PLANNING Designer Scale CAD File W&R 1"=50' K; CARD 94105 Pro D7WK ALt o ill MacKenon Drive • Cary, N.C. 27511 EXISTING CONDITIONS JULY 1998 Drawn By Dote Sheet No. OW RO 1Q/30/98 [IrMTHERS& 919-469-3340 FAX 919-461-6008 CARP WAKE COUNTY NORTH CAROLINA 'AROLINA Checked By Job No. DW/RO 94105 of . Y ~ ~ 4~ ~ ?Ii i yi . 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THIS STORMWATER MANAGEMENT PLAN HAS BEEN PREPARED TO MEET THE REQUIREMENTS OF \ i' / RULE NCAC 2H .0506 PART (b) (5) FOR THE DENR 401 WATER QUALITY CERTIFICATION I I Y 1 % ! I I I I I i a 1 1 1 d - f i I l i 1\>,, i 1 ~ yi r i I II I ~ i 1 / / I 1 1 1 q I 1 1 , 1 I I ~ j ~ \ \ a \ a ` 2. ACS. ~ 2• THE STORMWATER MANAGEMENT PLAN WILL BE ACCOMPLISHED BY THE FOLLOWING SCHEDULE ~ ~ ~ ~ ~ - m I I I q i . i i I I 1 ~ i ` ~ 1 1 ~ ~ t ~ ~ ~ r J, P N 1 \ ` \ . ~ \ ~ 1,2,7,8,9,14,15,16 INDMDUAL SWMP TO BE PREPARED AS PART OF FINAL SITE PLAN ° I I I a 1 1 Jr 1 1 - - ` ~'T ~ 1 f i I 1 1 . ~ , 1 \ ~ \ 1 ` ~ ~ 1 \ : SC (SHOPPING CENTER) INDMDUAL SWMP TO BE PREPARED AS PART OF FINAL SITE PLAN ca 1 1 1 p -~,°'C - ` _ I I , it / ~P I i- r \ 7.71 \ \ ,`a . ~ % •~i~ TO SERVE PARCELS 3 AND 4 L I I I I I -.r 1 1 ~ - r I! \ 1 I S ~ . ~ ~ _ . \ \ ~ ' 5 5,6 SWMP AREA WILL BE PIATTED AS SHOWN ON PARCEL 5 TO 1 ` ~ ~x ° \ ; TO SERVE PARCELS 5 AND 6 I - \ ~o' ~ ~ 9,10,11 SWMP AREA WILL BE PLATTED AS SHOWN ON PARCEL 11 TO ` ` ~ ~ ' ' TO SERVE PARCELS 9 10 AND 11 \ ` ~ ~ % / / / 12,13 SWMP AREA WILL BE PLATTED AS SHOWN ON PARCEL 13 TO \ ~ ~ ~ ~ - / TO SERVE PARCELS 1 AN i \ ~J-l ~ ~ ~ a 2 D 3 \ ~ ~ ~ a` /r- ~ ~ , ~ ~ 81 11 ~ y ~ ~ 300 3. FOR THE COMBINED PARCELS, THE SWMP WILL BE DEVELOPED AS PART OF THE FINAL SffE PLAN ` ~ - ~ l P ~ ~ \ , / REPARED FOR THE PARCEL WHICH CONTAINS THE PLATTED SWMP AREA Oi n 1 .lam • ~ ~ \ ~ ~y.= - _ ~ .c a - ? ~ ~ 1 L59 1 'cam ~ ~ a ,J~ ~ 1 ~ 1 ~ ~ • , , ~ \ , GRAPHIC SCALE / 2 ~ \ , ~ laa o so loo zao aoo ,I~ u~ _ ~ n - L N ( IN FEET ) O L 1 inch = 100 ft. L a Revisions Designer Scale CAD File No. Description Date B PRESTON EAST INDUSTRIAL PARK PARK OVERALL STORMWATER MANAGEMENT PLAN W&R 1°=100' Ravenel Withers a Drawn By Date Sheet No. W&R 11/13/98 0 Engineering and Surveying, IoaNEms 111 NacKenon Drive, Cary 1~ 21511 Phone: 919-469-3340 6CARY, NC LC hecked By Job No. W&R 94105 of . Y 4 _ } =INN .N