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HomeMy WebLinkAbout20130701 Ver 1_BMP Summary_20130814EEP NUTRIENT OFFSET PROJECT SUMMARY River Bend BMP Stormwater Wetland EEP #668 Synopsis EEP's River Bend BMP site (EEP #668) is a stormwater wetland BMP located in River Bend, North Carolina within the Neuse River basin CU 03020204. The project was initiated by NCEEP to offset nutrient loading as a third -party credit provider in the Neuse River basin (15A NCAC 02B .0240). This site was selected because it will treat a large, fully developed watershed. There was an existing undersized, under- performing BMP at the site that was expanded and modified for improved water quality benefit to the receiving water. The current property owner (Town of River Bend) was strongly supportive of the project. A stormwater treatment wetland works well in the area because of a consistent water source from the large watershed. The visual appeal of a wetland is a significant benefit as the site is heavily trafficked. NCSU recommended this site to EEP as it was a rare opportunity to find a location in the Neuse River Basin that can treat 115 acres at such a low cost and with property owner cooperation. The stormwater wetland is designed to remove 193.73 lbs /year of nitrogen, generating a 30 -year credit value of 5811.9 lbs reduuctiori of '1L'otaIl Nitrogen. Additionally, the project is designed to reduce 785.4 lbs of total phosphorous (TP) over 30 years; however, TP reduction credit is not available in the Neuse River basin. Site Location River Basin: Neuse CU: 03020204 14 -digit HUC: 03020204010100 County: Craven Municipality: Town of River Bend Receiving Waters: Trent River; 27- 101 -(31); 030411 Use Support Rating: Trent River — FS Project History MOA /CE: December 2005 Final Design: March 2006 Construction: February /March 2007 Planting: June 2007 Annual Inspection: TBD Project Participants Source Agency: Project Management: Designer: Construction: Landowner: BMP Management: BMP Design Parameters BMP Type: Watershed Area: Watershed Description Percent Impervious: BMP Storage Volume: Max Storm Depth Capt NC Ecosystem Enhancement Program NC Ecosystem Enhancement Program NCSU Biological and Agricultural Engineering Pete Rollins and Associates Town of River Bend Town of River Bend Stormwater Wetland 115 acres Primarily residential with some golf course and commercial areas 23% 4,300 cubic feet ured: 1.3 inch rain event Nutrient Removal (TN = Total Nitrogen; TP = Total Phosphorous) Pre BMP TN Loading: Post BMP TN Loading: 30 -yr TN Removal: Pre BMP TP Loading: Post TP Loading: 30 -yr TP Removal: 484.33 lb /yr (4.21 lb /ac /yr) 290.60 lb /yr (2.53 lb /ac /yr) 5811.9 lbs 74.81 lb /yr (0.65 lb /ac /yr) 48.63 lb /yr (0.42 lb /ac /yr) 785.4 lbs Property Protection & Maintenance Property Protection Method: The State of NC has a contract /Memorandum of Agreement with the Town of River Bend that requires them to operate and maintain the BMP for a minimum of 30 years. Maintenance: Town of River Bend is to conduct regular maintenance /inspections and submit reports to EEP every two years. Attachments: • Project Statement (Site location map, watershed map) • Memorandum of Agreement with the Town of River Bend • Project Plan Sheets • Nutrient Reduction Calculations • Red -lined construction drawings (no formal as- builts were produced) • Letter from the Town regarding maintenance and inspections • Photos 2 Project Statement RIVER BEND PROJECT STATEMENT Site Location River Basin: Neuse CU: 03020204 14 -digit HU: 03020204010100 County: Craven Municipality: River Bend Receiving Water: Unnamed tributary to the Trent River; 27- 101 -(31); 030411 DWQ Classification of Receiving Water: Trent - SB Sw NSW Use Support Rating for Receiving Water: Trent - FS (See attached site location map, Figure 1) Watershed Description Drainage Area: 115 acres Soils: Mostly Conetoe; Some Tarboro, Goldsboro, Udorthents, Masontown Land Use: Primarily '/z acre residential, with some golf course and commercial areas Average Watershed Slope: 1.5% Pre -BMP Nutrient Loading Estimate: TN- 4841b /yr, TP- 75 lb /yr (See attached watershed view, Figure 2) Site Description Current Property Owners: Town of River Bend Owners Willing to Cooperate: Yes Land Area Available: 0.8 acres Accessibility: Accessible from Plantation Dr. Site Constraints: There is a 6 inch water line running through the middle of the available area, 5 -6 feet deep (See attached site layout, Figure 3) I r 1 � i hr 1 RA VI, �� 1V �"qJ' i " CfSCI'P�EFCIW�N AWM 1/2 BMP Recommendation Type of BMP Recommended: Stormwater treatment wetland Approximate BMP Surface Area: '/4 acre Permits Required: None expected (note: existing BMP being altered, drains to tidal water) Post -BMP Nutrient Export Estimate lb /yr (35% reduction) TN- 291 lb /yr (40% reduction), TP- 49 Project Notes: This site was selected because it will treat a large, fully developed watershed. There is currently an undersized, under- performing BMP at the site that can be expanded and modified for improved water quality benefit to the receiving water. The current property owner (Town of River Bend) is strongly supportive of the project. A Stormwater treatment wetland would work well in the area because of a consistent water source from the large watershed. The visual appeal of a wetland is a significant benefit as the site is heavily trafficked. The BMP could likely fit on one side of the existing water line crossing the site, but it could easily expand to another cell on the other side of the line since the line is so deep. NCSU strongly recommends this site. It is a rare opportunity to find a location in the Neuse River Basin that can treat 115 acres at such a low cost, with property owner cooperation. �.JJ.1 r11..lJ1Jt lil 2/2 WwNy Mfl ii iii li V' COMRATIVE MUM EV N51 PDF created with FinePrint pdfFactory Pro trial version httD: / /www.Ddffactory.co Figure 2. Watershed View N Watershed Size - 115 acres A Content - Mostly 1/2 acre residential, 1 inch = 500 feet some golf course, commercial PDF created with FinePrint pdfFactory Pro trial version httr)-//www.r)dff M Figure 3. Site Layout PDF created with FinePrint pdfFactory Pro trial version httD: / /www.Ddffactory.co Memorandum of Agreement A74LA.. NCDENR INortl �Ffr °oli;;� �op0r����t;�� Environment and Natural RoSG-UrCeS DIVISION OF PURCHASE AND SERVICES Michael F. Easley, Governor Michael G. Bryant, Director William G. Ross, Jr., Secretary March 8, 2006 John R. Kirkland Town of River Bend 45 Shoreline Dr River Bend, NC 28562 -8970 Dear Mr. Kirkland: Enclosed is a fully executed copy of Contract No. D06024 between Town of River Bend and the Department of Environment and Natural Resources. Invoices or matters regarding work to be performed should be directed to the Contract Administrator, Jeff Jurek, DENR -EEP, 1652 Mail Service Center, Raleigh, NC 27699- 1652, 919- 715 -1157. Please include Contract No. D06024 on invoices submitted for payment. Should you have any questions regarding the contract, you may contact me at (919) 715 -3880. Sincerely, T. Mike Brendle, Chief Purchase and Contract Section Enclosure MB/mw cc: Sharon Jones, DENR -EEP Controller's Office One 1605 Mail Service Center, Raleigh, North Carolina 27699 -1605 NofthCarohna Phone: 919. 733.97461 FAX: 919 - 715.06841 Internet: www. admin. enr.state.nc �Vaturally An Equal opportunity ! Affirmative Action Employer -50% Recycled 110% Post Consumer Paper CONTRACT NO, 006024 STATE OF NORTH CAROLINA CONTRACTOR'S FEDERAL I.D. COUNTY OF WAKE 56- 1291141 CFDA CODE: NIA THIS AGREEMENT, made and entered into this 25th day of January, 2006, by and between Town of River Bend, hereinafter referred to as "CONTRACTOR ", and North Carolina Department of Environment and Natural Resources, hereinafter referred to as "DEPARTMENT "; WITNESSETH.- THAT WHEREAS, the CONTRACTOR has submitted to the DEPARTMENT a proposal for the performance of certain technical or professional services; and WHEREAS, the DEPARTMENT desires to enter into a contract with the CONTRACTOR to perform the services set out in the proposal; NOW, THEREFORE, for and in consideration of the mutual promises to each other, as hereinafter set forth, the parties hereto do mutually agree as follows: 1. . The CONTRACTOR hereby agrees to perform, in a manner satisfactory to the DEPARTMENT, services for the proper maintenance of a Stormwater BMP constructed on property owned by the Town of River Bend for a period of thirty (30) years from the completion of construction, as described in Attachment A which is incorporated as part of this contract. 2. The services of the CONTRACTOR are to commence on the 1st day of February, 2006 and shall be undertaken and completed in such sequence as to assure their expeditious completion in the light of the purposes of this agreement, but in any event, all of the services required hereunder shall be completed by the 31st day of January, 2036. 3. The DEPARTMENT hereby agrees to pay the CONTRACTOR a sum of money not to exceed ZERO DOLLARS ($0.00), said sum to be full and complete compensation for services rendered under this agreement. (a) Payment for services will be made upon receipt and approval of invoice(s) from the CONTRACTOR documenting the costs incurred in the performance of work under this contract. (b) All travel, lodging, and subsistence costs are included in the contract total and no additional payments will be made in excess of the contract amount indicated above. Contractor must adhere to the travel, lodging and subsistence rates established in the Budget Manual for the State of North Carolina. (c) Invoices are to be submitted to the Contract Administrator at least quarterly. Final invoice must be received by the DEPARTMENT within 45 days after the end of the contract period. (d) Amended or corrected invoices must be received by the Office of the Controller within six months after the end of the contract period. Invoices received more than six months after the end of the contract period will be returned without action. 1 of 5 CONTRACT NO. D06024 4. The Contractor shall be considered to be an independent contractor and as such shall be wholly responsible for the work to be performed and for the supervision of its employees. The Contractor represents that it has, or will secure at its own expense, all personnel required in performing the services under this agreement. Such employees shall not be employees of, or have any individual contractual relationship with the DEPARTMENT. 5. The CONTRACTOR shall not substitute key personnel assigned to the performance of this contract without prior approval by the Contract Administrator. The following individual is designated key personnel for purposes of this contract: John R. Kirkland. 6. None of the work to be performed under this contract which involves the specialized skill or expertise of the CONTRACTOR or his employees shall be subcontracted without prior approval of the Contract Administrator. In the event the CONTRACTOR subcontracts for any or all of the services or activities covered by this contract: (a) the CONTRACTOR is not relieved of any of the duties and responsibilities provided in this contract; (b) the subcontractor agrees to abide by the standards contained herein or to provide such information as to allow the CONTRACTOR to comply with these standards, and; (c) the subcontractor agrees to allow state and federal authorized representatives access to any records pertinent to its role as a subcontractor. 7. The CONTRACTOR'shall comply with all laws, ordinances, codes, rules, regulations, and licensing requirements that are applicable to the conduct of its business, including those of federal, state; and local agencies having jurisdiction and /or authority. 8. The CONTRACTOR shall take affirmative action in complying with all federal and state requirements concerning fair employment and employment of people with disabilities, and concerning the treatment of all employees without regard to discrimination by reason of race, color, religion, sex, national origin, or disability. 9. If, through any cause, the CONTRACTOR shall fail to fulfill in timely and proper manner the obligations under this agreement, the DEPARTMENT shall there upon have the right to terminate this contract by giving written notice to the CONTRACTOR of such termination and specifying the reason thereof and the effective date thereof. In that event, all finished or unfinished documents, data, studies, surveys, drawings, maps, models, photographs, and reports prepared by the CONTRACTOR shall, at the option of the DEPARTMENT, become its property, and the CONTRACTOR shall be entitled to receive just and equitable compensation for any satisfactory work completed on such documents and other materials. The CONTRACTOR shall not be relieved of liability to the DEPARTMENT for damages sustained by the DEPARTMENT by virtue of any breach of this agreement, and the DEPARTMENT may withhold payment to the CONTRACTOR for the purpose of set off until such time as the exact amount of damages due the DEPARTMENT from such breach can be determined. 10. This contract may be terminated by either party upon thirty (30) days notice given in writing by one party to the other. If the contract is terminated, all finished or unfinished documents and other materials shall, at the option of the DEPARTMENT, become its property. Termination of the contract by the CONTRACTOR shall not prohibit the DEPARTMENT from seeking remedy for additional. costs consequential to the termination, which are incurred by the DEPARTMENT. If the contract is terminated by the DEPARTMENT as provided herein, the CONTRACTOR will be paid in an amount which bears the same ratio to the total compensation as the services actually performed bear to the total services of the CONTRACTOR covered by this agreement; for costs of work 2 of 5 CONTRACT NO. D06024 performed by subcontractors for the CONTRACTOR provided that such subcontracts have been approved as provided herein; or for each full day of services performed where compensation is based on each full day of services performed, less payment of compensation previously made. The CONTRACTOR shall repay to the DEPARTMENT any compensation he has received which is in excess of the payment to which he is entitled herein. 11. The parties to this contract agree and understand that the payment of the sums specified in this contract is dependent and contingent upon and subject to the appropriation, allocation, and availability of funds for this purpose to the DEPARTMENT. 12. The CONTRACTOR shall hold and save the State, its officers, agents, and employees, harmless from liability of any kind, including all claims and losses, with the exception of consequential damages, accruing or resulting to any other person, firm, or corporation furnishing or supplying work, services, materials, or supplies in connection with the performance of this contract, and from any and all claims and losses accruing or resulting to any person, firm, or corporation that may be injured or damaged by the CONTRACTOR in the performance of this contract and that are attributable to the negligence or intentionally tortuous acts of the CONTRACTOR provided that the CONTRACTOR is notified in writing within 30 days that the State has knowledge of such claims. The CONTRACTOR represents and warrants that it shall make no claim of any kind or nature against the State's agents who are involved in the delivery or processing of CONTRACTOR goods to the State. The representation and warranty in the preceding sentence shall survive the termination or expiration of this contract. 13. Any CONTRACTOR receiving at least $15,000 but less than $500,000 in state funds from the DEPARTMENT within any fiscal year is required to file with each funding state agency a sworn accounting of receipts and expenditures of state funds in the format approved by the State Auditor. This accounting must be attested to by the CONTRACTOR fiscal officer and one other authorizing officer of the CONTRACTOR. This accounting must be filed with each funding state agency within six months after the end of the CONTRACTOR'S operating year. If the CONTRACTOR receives STATE funds of $500,000 or more during its fiscal year, it must file with the State Auditor and each funding agency its audited financial statements in accordance with the standards and formats prescribed by the State Auditor in Memorandum NGO -2 "Grantee Audit Reports." If the CONTRACTOR receives $500,000 or more in FEDERAL awards during its fiscal year from any source, including federal funds passed through the State or other grantors, it must obtain a single audit or program- specific audit conducted in accordance with the Federal Office of Management and Budget's Circular A -133 "Audits of States, Local Government and Non - Profit Organizations." If the above amounts are not met by one single funding agency, but rather any combination of funding agencies, then the appropriate reports shall be sent to the Office of the State Auditor and to the DEPARTMENT. Also, a corrective action plan for any audit findings and recommendations must be submitted along with the audit report or within the period specified by the applicable OMB Circular or Memorandum. 14. The DEPARTMENT may, from time to time, request changes in the scope of the services of the CONTRACTOR to be performed under this agreement. Such changes, including any increase or decrease in the amount of the CONTRACTOR'S compensation, which are mutually agreed upon by and between the CONTRACTOR and the DEPARTMENT, shall be incorporated in written amendments to this contract. 15. Any information, data, instruments, documents studies or reports given to or prepared or assembled by the CONTRACTOR under this agreement may be published by the CONTRACTOR or its employees, or distributed by the CONTRACTOR to any other individual or organization. Prior to entering into an agreement to publish, or prior to 3of5 CONTRACT NO. D06024 publishing, the CONTRACTOR or its employees shall give the DEPARTMENT a reasonable opportunity to review any such proposed publication solely for the purpose of determining if the DEPARTMENT wishes to be given credit for its funding role in the preparation of any such information, data, instruments, documents, studies, or reports. If the DEPARTMENT determines that it wishes to be given credit, then CONTRACTOR shall take all necessary steps to assure that credit is given by the publisher. Otherwise, the CONTRACTOR may proceed to enter into any agreement to publish, or may publish, but shall not acknowledge any participation by the DEPARTMENT. 16. The CONTRACTOR shall ensure that all publications produced as a result of this contract are printed double -sided on recycled paper. 17. Upon the entering of a judgment of bankruptcy or insolvency by or against the CONTRACTOR, the DEPARTMENT may terminate this agreement for cause. 18. Neither party shall be deemed to be in default of its obligations hereunder if and so long as it is prevented from performing such obligations by any act of war, hostile foreign action, nuclear explosion, riot, strikes, civil insurrection, earthquake, hurricane, tornado, or other catastrophic natural event or act of God. 19. The CONTRACTOR shall not assign or transfer any interest in this agreement. 20. No reports, maps or other documents produced in whole or in.part under this agreement shall be the subject of an application for copyright by or on behalf of the CONTRACTOR. 21. The place of this contract, its situs and forum, shall be Wake County, North Carolina, where all matters, whether sounding in contract or tort, relating to its validity, construction, interpretation and enforcement shall be determined. 22. The State Auditor shall have access to persons and records as a result of all contracts and grants entered into by State agencies or political subdivisions in accordance with General Statute 147 -64.7. The Contractor shall retain all records for a period of three years following completion of the contract or until any audits begun during this period are completed and findings resolved, whichever is later. 23. The CONTRACTOR agrees that he shall be responsible for the proper custody and care of any State owned property furnished him for use in connection with the performance of his contract and will reimburse the State for its loss or damage. 24. Jeff Jurek is designated as the Contract Administrator (project administrator) for the State. However, any changes in the scope of the contract which will increase or decrease the CONTRACTOR'S compensation shall not be effective until they have been approved by the DEPARTMENT Head or Authorized Agent. 4 of 5 CONTRACT N0, D06024 IN WITNESS WHEREOF, the CONTRACTOR and the DEPARTMENT have executed this agreement in four originals, one (1) of which is retained by the CONTRACTOR and three (3) of which are retained by the DEPARTMENT, the day and year first above written. TOWN OF RIVER BEND John R. Kirkland Typed Name avor WITNESS: Title 1 Si nature Approved as to Form: Attorney General of North Carolina NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES illiam G. Ross, Jr., Secretary Director /Division of Purchase & Services By Depar t"Head' Signature or Authorized Agent WITNESS: ignature ORIGINAL 5of5 SCOPE OF WORK A. Introduction The mission of the NCDENR Ecosystem Enhancement Program (EEP) is to restore, enhance, and preserve wetlands, streams, and riparian buffer areas, and to reduce the discharge of nutrients into surface waters throughout North Carolina's 17 major river basins with the overall goals of improving water quality, in- stream and riparian habitat. EEP is interested in restoring and protecting the watershed functions of the Trent River Drainage area, which includes the Town of RIVER BEND (TORB). The construction of stormwater treatment systems, commonly referred to as Stormwater Best Management Practices ( Stormwater BMPs) is an accepted method of improving water quality by reducing nutrient discharges into surface waters of the State. This scope of work (SOW) will be used to develop a Memorandum of Agreement (MOA) between EEP and TORB for a Stormwater BMP to be located on property owned by TORB. B. Background The purpose of this SOW is to define and set forth the responsibilities of TORB and EEP for the design, construction and maintenance of a Stormwater BMP. The entire costs - associated with the design and construction of the Stormwater BMP will be funded by EEP through other contracts. Maintenance of the Stormwater BMP to ensure proper function will be the responsibility of TORB and no monies will be paid to TORB. The Stormwater BMP will be constructed on a parcel of land located near the intersection of Plantation Drive and Shoreline Drive in River Bend, Craven County, North Carolina. The project site is identified as PIN # 8- 201 -040 in the Craven County Register of Deeds. The Project is intended to enhance water quality within the Trent River Drainage Area (Cataloging Unit # 03020204, Hydrologic Unit 03020204010100) through the reduction of nitrogen and phosphorous discharges into surface waters within the watershed. This reduction is to be accomplished through the use of a Stormwater Wetland BMP as outlined in the RIVER BEND PROJECT STATEMENT, a copy of which is attached hereto as ATTACHMENT 1. It is anticipated that the Stormwater Wetland BMP will reduce Total Nitrogen discharges from the 115 acre sub - watershed by approximately 40 %, or 194 pounds per year, and Total Phosphorous discharges by approximately 35 %, or 26 pounds per year. C. Scope of Work Tasks and Responsibilities for TOWN OF RIVER BEND The Project is located entirely on property owned by and within the jurisdiction of TORE. The primary responsibilities of TORB during and after construction of the Project will be: A ATTACH MENT-A To work cooperatively to develop and implement a esign plan that is agreeable to :7 0 both entities. Both entities also agree to work cooperatively to develop a remedial action plan (RAP) that is agreeable to both entities in the event that post - construction, remedial activities are necessary. Details related to the implementation of the RAP will be jointly discussed by both entities as necessary. 2. To provide a designated contact person from TORB to coordinate and review all aspects of the Project with EEP and its contractors or consultants. TORB will respond in writing to any Project approval request within thirty (30) days frorn the date of request. If TORB fails to respond within thirty (30) days of the request, the request will be deemed approved by the TORB. 3. To provide and ensure that EEP, its contractors and its consultants will be allowed reasonable access to the Stormwater BMP Project work site during normal working hours. 4. To provide for public safety and work place security ' by keeping work areas closed to the public as necessary throughout the constructions phases of the Project. Contractors will follow standard OSHA guidelines and will post the construction site. 5. TORB will designate a contact person and/or Public ' Information Officer that will notify or consult with EEP prior to issuing news releases relating to the Project.. 6. To meet with EEP and/or its contractors and consultants at least every two months to review and assess the Project's plans and progress. TORB will submit a Stonnwater BMP maintenance and inspection report to EEP every two (2) years for a period of thirty (30) years at no cost to EEP. TORB will maintain the Stormwater BMP to ensure functionality for a period of 30- Y ears at no cost to EEP. Tasks and Res onsibilitles for Ecas stun Enhancement Pro ram The primary responsibilities of EEP during and after this project will be: I . To work cooperatively to develop and implement a design plan that is agreeable to both entities. Both entities also agree to work cooperatively to develop a remedial action plan (RAP) that is agreeable to both entities in the event that post-construction remedial activities are necessary. Details related to the implementation of the RAP will be jointly discussed by both entities as necessary, 2. To design and construct the stormwater BMP at no cost to TORB. 3. To consult with TORB's designated contact person and/or Public Information Officer and staff prior to issuing news releases relating to the Project. ATTAfC,HMENT_A,,_ 4. To meet with TORB staff to review and assess the project's progress, as specified in Section 3, item No. 5 of this SOW. A minimum of Four (4) meetings will be held with TORB to discuss the Project and receive input. These meetings will be held after preparation of the Draft Design Plan (30% complete design), after preparation of the Final Design Plan, prior to the Pre - Construction Meeting and prior to the Post - Construction Meeting. 5. To obtain any state, federal or local permits necessary for construction of the Project. D. Timeline and Duration of this A reement The Project shall commence on the date a Memorandum of Agreement (MOA) is signed by all parties. The site maintenance phase of the Project will commence upon completion of the Stormwater BMP construction. TORB agrees to maintain the constructed Stormwater BMP site for a 30 -year period and submit site maintenance and inspection reports to EEP every two (2) years for a period of thirty (30) years following completion of the construction phase of the project. E. Limitations 1 The MOA will not transfer the ownership of the Iand or the management and maintenance responsibilities for the Project from TORB to EEP. All provisions of the MOA will be consistent with such understanding. 2. If either party fails to perform or comply with any condition of the MOA, and should such failure continue more than 30 -days after written notice from the other party, and if the non - compliant party should not within 30 -days commence to cure the failure with due diligence, the aggrieved party may terminate the MOA on written notice to the non- compliant party, termination to be effective not less than 15 days from the date of the written termination notice. 3. The failure of either party to insist on strict performance of any condition of the MOA shall not be construed as a waiver of the right to insist on the performance of that condition in any other instance. 4. The MOA may be modified or terminated by mutual agreement of the parties as long as such modification or termination is made in writing and signed by authorized officers or agents for each of the parties. ATTACHMENT 1 RIVER BEND PROJECT STA'T'EMENT Site Location River Basin: Neuse CU: 03020204 14 -digit HU: 03020204010100 County: Craven Municipality: River Bend Receiving Water: Unnamed tributary to the Trent River; 27- 101 -(31); 030411 DWQ Classification-of Receiving Water: Trent - SB Sw NSW Use Support Rating for Receiving Water: Trent - FS (See attached site location map, Figure 1) Watershed Description Drainage Area: 115 acres Soils: Mostly Conetoe; Some Tarboro, Goldsboro, Udorthents; Masontown Land Use: Primarily 1/2 acre residential, with some golf course and commercial areas Average Watershed Slope: 1.5% Pre -BMP Nutrient Loading Estimate: TN- 484 lb1yr, TP- 75 lb /yr (See attached watershed view, Figure 2) Site Description Current Property Owners: Town of River Bend owners Willing to Cooperate: Yes Land Area Available: 0.8 acres Accessibility: Accessible from Plantation Dr. Site Constraints: There is a 6 inch water line running through the middle of the available area, 5 -6 feet deep (See attached site layout, Figure 3) Y � f h Iftq � ' i Y ,,.,. RAT coo"w►rnri =omnswk 112 BMP Recommendation Type of BMP Recommended: Stormwater treatment wetland Approximate BLIP Surface Area: !/4 acre Permits Required: None expected (note: existing BMP being altered, drains to tidal water) Post -BMP Nutrient Export Estimate: lb /yr (35% reduction) TN- 291 lb /yr (40% reduction), TP- 49 Project Notes: This site was selected because it will treat a large, fully developed watershed. There is currently an undersized, under - performing BMP at the site that can be expanded and modified for improved water quality benefit to the receiving water. The current property owner (Town of River Bend) is strongly supportive of the project. A stormwater treatment wetland would work well in the area because of a consistent water source from the large watershed. The visual appeal of a wetland is a significant benefit as the site is heavily trafficked. The BMP could likely fit on one side of the existing water line crossing the site, but it could easily expand to another cell on the other side of the line since the line is so deep. NCSU strongly recommends this site. It is a rare opportunity to find a location in the Neuse River Basin that can treat 115 acres at such a low cost, with property owner cooperation. I r ��. 1 '� -• "r:i�`"i�ri iii 1 DMNSIOH 2/2 r '49 4 A Figure 2. Watershed View N Watershed Size - 115 acres 1 inch = 500 feet Content - Mostly 112 acre residential, some golf course, commercial PDF created with FinePrint adfFactory Pro trial version httn- / /www.n8ffactnry rnm 0 ATI'A"C'HMENT 7n n CD CD ZT, Cl) CD CD =r cr 0 tz. c 70 CD CD CD n 11) 0 0 ATI'A"C'HMENT V" "o 0 . -V� , 41M 7n CD ZT, Cl) CD cr 0 tz. c CD CL V" "o 0 . -V� , 41M 7n CD Cl) CD 0 tz. c r Plan Sheets 0- 'cosystel 111 iolo9i 18 ea unrai Enei ring m� m COOPERWIV'E dVNVNMCik e"ENSION EEP Contacts Kriste Corson Project Manager 919.7151954 Lin Xu Review Coordinator 919.715 7571 NCSU BAE Contacts: Ryan Sm th Desgn /Construction 919.515 8595 Kris Bass Design 919.515 8245 Bill Hunt Design 919.515 6751 Additional Contacts: Charley Humphrey - Craven County Coop Ext. 252.633.1477 Ritter Field Stormwater Wetland Craven County 45 Shoreline Dr. River Bend, NC 28562 Parking A/ 9 Plnygrountl �n Qrb Ritter Fieltl Disturbed Area - 0.9 ac. Site Map Index of Sheets 1 Cover 2 Site Grading 3 Details (1) 4 Details (2) 5 Details (3) J y A Vicinity Map 35.07° N 77.156 W Erosion and Sediment Control Filter fabric will be laid over the -- crest of the existing wooden outlet structure. The designer MR then attach a piece of ply wood to the structure with large holes cut in it. Washed 57 stone MR then be placed up and down stream of the ply wood for flow - - control and filtration (Detail on sheet 4). When construction is complete, apply centipede grass seed to all disturbed areas with slopes less than 3 :L, cover with straw and tack the area. Use ProPlus Tack Down or similar alternative (to be approved by designer), Ritter Field mixed 70% water, 30% Tack ➢own and apply liberally. On slopes 3 :1 or steeper (banks), apply centipede grass seed, cover with erosion control blanket and staple. Use North American Green SL50BN erosion control blanket or similar (to be approved by designer). Apply blanket per manufactures instructions using staple pattern A (Detail on sheet 5). Normal Pool Water Surface - 98.2' Flood Pool Water Surface - 98.7' Drawdown Time - 2 days 30 0 30 60 Note All elevations in plans relative to designer's benchmark ' V q' be la t wood st and mo ti be left In place and nodlfled 96° CMP by designer invert 97.21' U A A� Q� 2� Q n0 h 36° RCP A ]nvert 99.38' 99.2' 9i A, P' General Construction Sequence ■Remain within disturbance limits staked by designer (Detail on sheet 4) ■Implement all erosion control measures as described in Erosion and Sediment Control section (Sheet 2) ■Remove and discard shrubs existing on the eastern bank of the existing wetland ■Scrape top 6" of soil within the disturbance limits and stockpile for reapplication in the wetland and Ritter field area after grading is complete ■Pump water from existing wetland ■Excavate eastern bank of existing wetland and apply cut to fill areas in the wetland. Leave a drainage channel in the wetland for construction, if necessary .Excess cut can be temporarily piled or spread on Ritter Field, within the staked disturbance limits, with a final grade that will allow the field to drain ■Apply 3' of topsoil to all disturbed areas ■Fine grade new wetland banks to a 3 :1 slope, pools to a 2 :L slope and grade wetland bottom to elevations shown ■Apply 2 -3' of organic amendment (to be selected by designer) to wetland bottom ■Plant wetland as described in Planting section (Sheet 3) ■Cover disturbed areas as described in Erosion and Sediment Control section (Sheet 2) Drawn by: RAS Scale Designed b RAS Date: 10 /2005 W 9 y H: 1' = 30' Sheet 2 A w eo"eanTUwE Reviewed b WFH, KLB File Name: nver_bend.dwg AIMM EXT @M61QW =" y' V. N/A I'il r ^f i , ^JM =II r 99,00 98,00 97,00 — 96,00 — 95,00 — DATUM ELE V 94.00 0,00 GROUP BOTTOM SECTION A-A' Wetland Profile Wetland ho I I on d pool elevation - 9e 7' Normal pool elevation - 98 L' 20,00 40,00 60,00 80,00 100,00 120,00 140,00 160,00 180,00 200 ,00 Scale H: 1 = 30' V: 1 3' Material. Estimates Water Lily - 9 Spatterdock - 9 wPickereLweed - 555 .Lizard's tail - 455 .Arrow arum - 455 .Duck potato 355 -Rush - 450 xWooLgrass - 450 -Soft s tem bulrush - 455 .Marsh mallow - 20 Cardinal Flower - 35 .Pink fetterloush - 15 .Sweet pepperlou s In - 5 w480 cy OF so![ applied to Ritter Field .Centipede seed - for 213 ac :Straw - for 213 ac Tacking - 1 c ase (5 gal. total) .Erosion control blanket - 6 100' roles, standard width -Staples - 1 100. OF 1000 .Organic Amendment - 65 cy .Fertilizer - For 7200 sF :57 stone - 700 Llos (1/2 ton) FIL t er fabric - 100 sF Planting .In deep pools plant water Lily and spatterdock, 2 each per pool. .In elevations g 7.95-98.2' plant pickereLweed (Pontederia cordata), Lizard's tail (Saururus cernuus), arrow arrum (PeLtandra virginica), duck potato (Sagittaria LatiFolia), rush (Juncus effusus), woolgrass (Scirpus cyperinus), soft stem bulrush (Scirpus vaLidus). Plant an 18' centers in groups of 7-10 and randomize the groups .On banks, around elevation 100', plant cardinal Flower (Lobelia cardinalls), marsh mallows (Hiloiscus moscheutas), pink fetterloush (Lyonia lucida) and sweet pepperloush (CLethra alnifoLia) spaced around 4' apart. .Fertilize within 24 hours OF planting with no imminent rainfall using 10-10-10 at 20 llos per 1000 sF. Drown by: RAS Designed by: RAS Date: 10/2005 COOPIRATIVE, Reviewed by: WFH, KLB File Name: river—bend.dwg Planting Zones ter /Shallow land plants pool I'loni," m j1plon') IJ ''I'l" lho.11ovv wo.te .r/ shoAlow land plants uv!U he plan lard ro.ndomly within the shown are.o. o.nd wilil re.disarlioute. o.nd riti-lin na, haroAly. N.T.S Scale: See details �id i Sheet 3 PI'Vor R � K Sediment and Erosion Control Structure Fitt— fabrc MLL be placed over the plyxood and an the s round, an each s ide of td Washed 5] tone ILL then be placed n the 3/4' plyxood Fabrc — each 'id. EL. 99.3' 1.25' hales N.T.S Scale: 1" = 50' Disturbance Limit Parking A� Q7 Playgroup nQ Ritter Field \, yF Disturbed Area - 0.9 ac. " — Drawn by: RAS ( l 1,� Designed by: RAS Date: 10/2005 Scale: Sheet 4 dTIV � � � File Name:river_bend . dw 1, �CO4PENM7gYL Reviewed 6y: WFH, KLB 9 See details I'iii � I'i l l N "il"u�i"I IIX7AIM &IOM " I i L�r 17 I I I I'.: I NORTH AMERICAN GREEN Pmduc[s Guaranteed , 14649 HIGHWAY 44 NORM -, IN JJ25 WO -JJ2 -2(140 nc9rcen.cam Erosion Control Blanket SLOPE INSTALLATION 1. PREPARE SOIL BEFORE INSTALLING ROLLED EROSION CONTROL PRODUCTS (RECP's), INCLUDING MY NECESSARY APPUCATON OF LIME, FERTILIZER, AND SEED. NOTE: WHEN USING CELL -O -SEED DO NOT SEED PREPARED AREA. CELL -O -SEED MUST BE INSTALLED WITH PAPER SIDE DOWN. 2. BEGIN AT THE TOP OF ME SLOPE BY ANCHORING ME RECPS IN A 6" (15 CM) DEEP X 6" (IS CN1 WIDE TRENCH WITH APPROXIMATELY 12' (30cm) OF RECP's EXTENDED BEYOND ME UP -SLOPE PORTION OF ME TRENCH. ANCHOR THE RECP's WITH A ROW OF STAP LES /STAKES APPROXIMATELY 12' (30 CM) MART IN ME BOTTOM OF TILE TRENCH. BACKFlLL AND COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30 CM) PORTION OF RECP's BACK OVER SEED AND COMPACTED SOIL. SECURE RECP's OVER COMPACTED SOIL WITH A ROW OF STAPLES /STAKES SPACED APPROXIMATELY 12" (30 CM) APART ACROSS ME WIDTH OF THE RECP's. 3. ROLL ME RECP's (A.) DOWN OR (B.) HORIZONTALLY ACROSS THE SLOPE. RECP's WILL UNROLL WITH APPROPRIATE SIDE AGAINST ME SOIL SURFACE. ALL RECPS MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES /STAKES IN APPROPRIATE LOCATI ONS AS SHOWN IN THE STAPLE PATTERN GUIDE. WHEN USING THE DOT SYSTEM` STAPLES /STAKES SHOULD BE PLACED THROUGH EACH OF ME COLORED DOTS CORRESPONDING TO ME APPROPRIATE STAPLE PATTERN. 4. ME EDGES OF PARALLEL RECP's MUST BE STAPLED WITH APPROXIMATELY 2" - 5" (5 CM - 12.5 CM) OVERLAP DEPENDING ON RECP'e TYPE. 5. CONSECUTIVE RECP'e SPLICED DOWN ME SLOPE MUST BE PLACEO END OVER END (SHINGLE STYLE) WITH AN APPROXIMATE 3" (J.5 CN) OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY 12" (30 CM) MART ACROSS ENTIRE RECP's WIDTH. NOTE: -IN LOOSE SOIL CONDITIONS, ME USE OF STAPLE OR STAKE LENGTHS GREATER MAN 6' (15 CM) MAY BE NECESSARY TO PROPERLY SECURE ME RECP's. NORTH AMERICAN GREEN - 3 (, om) I - s' lo 1-1 - O O 1.15 STAPLES PER SO, YD. (1.35 STAPLES PER S0, M) O -) Q('j�' 2 ° m T200 (0 -) O O O O O 3.4 STAPLES PER 50. 2. (4.1 STAPLES PER S0. M) STAPLE PATTERN GUIDE 6.67' (2.03 M) WIDE ROLLS OO O 0J 57APLE3 PER 50. YD. (O.S STAPLES PER S0. M) s ros -) 2 (0.6m) -) -0 O O 1.7 STAPLES PER S0. YD. (2.0 STAPLES PER S0, M) O a (1.2 -) - O O -11 ' 10.25-) O Q Q. P.5 -P 0 0 3 ]5 STAPLES (4.5 STAPLES PER SO. YD. PER S0. M) ' %" _ �......... Drawn by: RAS Scale: r ` I t e AMM Designed b RAS Date: 10 /2005 N =I rr Sheet 5 9 Y H: N.T.S C'G'GPiRplffdYi a Reviewed b WFH, KLB File Name:river_bend . dwg Y V: N.T.S I ,i .,V IE,IC1EIhYSY/IM i 1S I:. IIx m 1 I ; mm Design Calculations Tar - Pamlico Stormwater Rule 15A NCAC 2B .0258 Last Modified 8/8/2013 Introduction The set of Nvorksheets included in this file will enable stormwater permit applicants to comply with, and local governments to administer, the nutrient loading requirements of the Tar - Pamlico StormNvater Rule, 15A NCAC 213 .0258. The file contains a set of Nvorksheets for estimating nitrogen and phosphorus export from a development project prior to and following development, and following the installation of best management practices (BMPs) on the development. Supporting information on the design of the Nvorksheets can be found in the document, Tar- Pamlico River Basin: Model S'tormwater Program for Nutrient Control, available from local governments implementing the stormwater rule and the NC Division of Water Quality staff contact for the Tar - Pamlico nutrient strategy, in the Nonpoint Source Unit of the central DWQ office, Raleigh, NC. The information may also be downloaded from the Division of Water Quality's Tar - Pamlico web page at http:// h2o. enr.state.ne.us /nps /tarpam.htm. This file contains Nvorksheets with the following elements: 1. Definitions of Land Use Terms Used in Spreadsheets (this page) 2. Residential Worksheet when Footprints are not Shown (1 pg.) 3. Export Calculation Worksheet for Coastal Plain Communities (1 pg.) 4. BMP Removal Calculation Worksheet for Coastal Plain Communities (3 pp.) Definitions of Land Use Terms Used in Spreadsheets Transportation impervious: The portion of the development that is taken up by roads, driveways, parking areas, Nvash pads or any other facility designed for vehicular use, maintenance or storage. Transportation impervious includes areas covered in pavement, gravel, pavers and dirt. Roof impervious: The portion of the development that consists of roofs of buildings and garages that serve single - family homes. Commercial parking garages shall be considered as transportation impervious. Managed pervious: The portion of the development that consists of vegetated areas that the landowner could manage by moNving, logging, applying fertilizer, etc. Although residential development may include pervious areas that are initially undisturbed, these areas must be considered as managed pervious (instead of Nvooded pervious) unless they have conservation easements or another mechanism to insure they will not be managed. Also, the land in Zone 2 (the outer 20 feet) of a protected riparian buffer must be considered as managed pervious area unless it is protected by a conservation mechanism. Wooded pervious: The portion of the development that consists of forested areas that are permanently protected by a conservation easement or other binding conservation mechanism. Also, wetlands and the land in Zone 1 of a protected riparian buffer (the first 30 feet adjacent to a stream) may be considered as Nvooded pervious area. Tar - Pamlico Stormwater Rule 15A NCAC 2B .0258 Last Modified 8/8/2013 Residential Worksheet when Footprints are not Shown Use this worksheet when building footprints are not known to determine the acreage in each of the four categories - transportation impervious, roof impervious, managedpervious, and woodedpervious - in the development. You will need these acreages for both the "Export before BMPs" and "Export after BMPs" worksheets. For the "Export after BMPs" worksheet, you will need to subtract the acreage occupied by BMPs from the managed pervious acreage produced by this worksheet. Also for the "Export after BMPs" worksheet, if the development contains more than one catchment, use this worksheet for each catchment. Project Name: Date: By : Directions: > In the two green spaces in the box below, enter the average lot size and the percent of the right -of -way that is impervious within the development. > In the table below, for the type of land cover listed for each column, enter acreages in the green boxes beneath. > In the "Lot Area" column, be sure to enter acreage within lots that is protected by a conservation easement, the Tar - Pamlico buffer rule, or ivetland rules in the green box in the lower lefthand corner (enter "0" if there is none). If lots are drawn to exclude protected lands that are part of the total development acreage, enter the acreage of those protected lands as wooded pervious in the "Community Areas" column. > The spreadsheet will compute all values in the light blue shaded boxes. > NOTE: In the "Community Areas" column, v ou will need to ensure that the various component acreages sum to the value in the "TOTAL" box at the top. The spreadsheet will not correct for inconsistencies. Any inconsistency between the total value and the sum of individual acreages will carry over to column (5). Average lot size = 0.5 ac (Must show building footprints if lot size < 0.13 ac.) % impervious in right -of -way = 50 % ........................... :( k} .:.:. :.:.:.:.:.:.:.:.:.:�2):.:.:.:.: .......... :.:.:.:.:(3j:.:.:.:.: ..................... :. :.:.:.:(4�:::::::::::::::::. {): Type 4L•antf 1'b er; ::::::::::: Lot:arCfl:::::: :RigYit =gf� 'a- area; :�`riiriiriairit }':Hieas ; :: S:urri cif 0.616 - ri :::(aEj:::::::: ................ ................. TOTAL 80.30 15.30 19.40 115.00 :Tj 4fiS]pX►Xiiltln11:1]1]PC vi0i6 :: 9.97 7.65 1.15 18.77 Rnf itiipexigU 6.61 0.50 7.11 lVian ged:e:i�iu§ : 63.72 7.65 17.45 88.82 ieX� j�us:::::::: 0.00 0.30 0.30 Tar - Pamlico Stormwater Rule 15A NCAC 2B .0258 Last Modified 8/8/2013 Tar - Pamlico Storm water Rule 15A NCAC 2B .0258 Coastal Plain of the Tar - Pamlico River Basin: Includes Greenville and Washington as well as Pitt and Beaufort Counties Last Modified 8/8/2013 Total Nitrogen and Total Phosphorus Loading Calculation Worksheet (Automated) Proj eet Name: Date: By: Checked By: Directions (same for pre - development and post - development tables): Enter the acres of each type of land cover in the green boxes. The spreadsheet will calculate all of the values in light blue. Compare total areas of development in pre- and post - tables for consistency (bottom of column (2)), and also for consistency with the site plans. If all of these values are not the same, there is an error that must be corrected. �� Unless drainage onto the development from offsite is diverted around or through the site, offsite catchment area draining in must be included in the acreage values and treated. Pre - development: :::: O :::::::::: ::::::::::2):::::::::::(3}::::: ::::::O:::::: ::::: 5)::: ::::::::( :::::::::::(7)::::: i 4e gt:L'aiia:Coyei :Area : :S.IVT Iiairriuli Avei�iwe EMC - : Coluinii- : - :AverAgg :EMC Cbliinin: - : acmes :: 0:31G + 9:1 L' uf: tN in6fL • 2): *: 3 4 : ut E ht� > : 2 3.4.6 lrspUrtn.UiyiiviouS 2.60 0.19 . :Ruirf i]iiliel,�:iotis; 1.95 0.11 Maiia�ed derv. pir: la�n7anilscz�' . c� 1.42 0.28 ::: M� vo~ded ikr,eibtis:::::: : • c. o- 1 u►d 4.23 1.23 hii iaecl ppr, ioiic 2.04 0.62 : wao'deil.pei-yl�ius::: , : , : , 0.95 0.14 ................ :1 LaCEibii �fri ei yioiis: ....... ....... JN �L4adlu� ........ ::: T1':Lkiaiiig .�.:.:. ................ Toliil -A ea:of b Ce t;liifiierit -.:: ............... : T1�T:>� jr :Cbefl: : TP:EaIi ;Cpeif. ::.(lbiaC %r):= Post - development: ............................ . . . . . : : (�) ............................... :T1pe Laitd Coiei: :Ar• i : :S.lv> >F61?ni. . .Ak-.e �c 11MC : C�liiIna.: .. 40 �e:Fmc. ::::Coluinii; , ; : •acmes • : 0:51 � 9.1:h : : o:f:TN • in, FYQ : 2.: *: 3 4 : :of TP' ni6 > ::: ::^ 3 :' 6 : •Triig, oekit;ibn:ithliein;iirUs : ; : 2.60 0.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ro'uf. irhl.io�ts; : ; : 1.95 0.11 ManagedZei �ibits.::: 1.42 0.28 WAoded. 0.94 0.14 :F> aC4iuix Iiri ei'i76AS: . .TN I:�acli. 9 : T.. . .iil. (ll... r }= ::: (1bl�rX :TIiT Es1r :CbefT :)'ly:t0 ;Cpeff. .T. . . et. .Ile exopii[ent -: : . :.(1biaC /•:i): r :(lla �cJ.v>) Note: The nutrient loading goals are 4.0 lb ac yr for IN and 0.4 lb ac yr for TP. If the post - development nutrient loading is below these levels, then no BMW is necessary. Otherwise, the next worksheet calculates post - development IN and TP loadings after BMPs are installed. Tar - Pamlico Stormwater Rule 15A NCAC 2B .0258 Coastal Plain of the Tar - Pamlico River Basin: Includes Greenville and Washington as well as Pitt and Beaufort Counties Last Modified 5/23/03 BMP Removal Calculation Worksheet (Automated) Project Name: Date: 13v: Checked BN Directions: � It may be advantageous to split the development into separate catchments to be handled by separate BnIPs. The tables below allow the development to be split into as many as three catchments, and can be copied for greater than three. NOTE: Unless runoff flowing onto the development from ofs;ite is routed separately around or through the site, the ofs;ite catchment area draining in must be included in the acreage values of the appropriate land use(s) and treated. Above each table: Enter the catchment acreage in the top green blank. Based on a comparison of the post - development TN and TP export coefficients you calculated above to the rule requirements of 4.0 lb ac NT TN and 0.4 lb ac NT TR select BnIP(s) from the list for treating the catchment runoff. Enter the chosen BnIP(s) nutrient removal rates in the green blanks. If more than one BnIP is to be used in series, the combined removal rates will be calculated automaticath, in the blue blanks. Catchment Tables: Enter the acres of each type of land cover in the green boxes. The spreadsheet will calculate all of the light blue boxes. NOTE: Compare the Total Catchment Acreage for the Development (final table) to the value yon established in the pre -BnIP worksheet tables, and also to the site plans, for consistency. All of these values need to be the same . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • :� . . . . :TJ':::: . . . . . . . . . . . . . . . . . . . . . . . . . . Desk i t,~gcl��rl::::::::: BMP ' :��`e't;1leten'tion Poillf ::: 25 40 NC BAIP Alanual Nutrient :: �i4r °nrs,, :fit °etiagd : : 40 35 NC BAIP Alanual Removal : ' Sa" Filter . . . 35 45 NC BAIP Alanual Rates : 'Biure'tention: ' : ' : ' : 35 � NC BAIP Alanual Grass:Sivales 20 20 NC BAIP Alanual :veget. led:F.ilter:S&ip tiff /. 20 35 NC BAIP Alanual 1 evel:Spreader: ::pit:�etegtipri:::::: 10 10 NC BAIP Alanual Catchment 1: Total acreage of catchment I = 115 ac First BnIP's TN removal rate = 40 ° o First BnIP's TP removal rate = 35 ° o Second BnIP's TN removal rate = ° o Second BnIP's TP removal rate = ° o Third BAIP's TN removal rate = ° o Third BAIP's TP removal rate = 00 TOTAL TN REI\IOy 'AL RATE = 40 °'o TOTAL TP REI\I(_)\'AL RATE = 35 °'o ::::0) .. ::::::::: . :::O:::: ::•:•( 3�:• :•:•:•'•'i4�:•:•:•:•:•:(5)•:•:• •' '•:�6)•:•:•: :•:•�Z):•:•: T} r� of 4'14(4 C'otel'.: - : - : - C'fLlOnlegti szNI; Covyma l :1ter ?ge. 1t1C; :::: E'piUpU? : A,''8i•age'E : ::C'olumtX :;rre :r .b:�k +:9•lY 4T n L.* 3: *' :4TP:n? /:: z::3:G: :: T .rains.pp-tation:inipervious::: 18.77 2.56 2.60 124.80 0.19 9.12 ::I2o�f 1ptpe }.1o�s ::::::: 7.11 2.56 1.95 35.45 0.11 2.00 Itl5n5ged :rei•yiouv ::: • : • 88.82 2.56 1.42 322.59 0.28 63.61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "ooxlexl:per�ious::: 2.56 0.94 0.00 0.14 0.00 0.30 2.56 1.95 1.50 0.11 0.08 Fi action:Ifinpewioirs:(i) _:::: 0.23 • :'eFBIP TN: 484.33 :: PI'e:BIp.11' 74.81 •I o$il (IU /n l3 = :: I aC (IbtyC)= :. eta7 Area of Devel trierit: =; : 115.00 P�••e= BNIP:TN• 4.21 • : •Pre =BLIP . 0.65 . Ezgurt:(1bFic }'r} E�noi t Itb%ae /ai :PBtiTst- N l?ost -BAIIV TP L.oid' {Ib /vij= 290.60 :Lmut�I�lcc):= 48.63 ::l?bst:B1tIPTN Past:B1tlP•1. 2.53 0.42 llor't:(j4�licY }`� Ey irit(Ili /�7cA Tar - Pamlico Stormwater Rule 15A NCAC 28 .0258 Last Modified 5/23/03 Catchment 2: Total acreage of catchment 2 = ac First Bn4P's TN removal rate = ° o First Bn4P's TP removal rate = ° o Second Bn4P's TN removal rate = ° o Second Bn4P's TP removal rate = ° o Third BA4P's TN removal rate = ° o Third BA4P's TP removal rate = ° o T(_)TAL TN REI\IO \'AL RATE = 0 °'o T(_)TAL TP REI\I(_) \'AL RATE = 0 °'o • T..:re of I acid Co«i•• : Ctitchnierit• S31: Eorinidai :1i'errge;E1tIC': ; : ; :C'olunin : • • �ierage EBIG : : •C'olum+i - : crew 'e '0:�1 +:9.14)- of TN •u•'L -: 2 (3:* #: : �of-TP: ni•li :: '2:# ,1 : *: G.: Tr:aigsfEoilatioh•ihipe�vipu5 : • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.60 0.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rooflnirejgiouy . ; : 1.95 0.11 Man iced {rei vious : ; : : 1.42 0.28 �Vj -0eU. pe"' ipuj - ; - ; - ; - 0.94 0.14 1i•ea tal&n:u0!) }: Bi\TP: : • : 1.95 0.11 Fi Oction:Itii el i ruin• i ' . �. e. B. .TPA . Pi e;Bb IP ; . (1b7;rc }= : . }I i}P I P 4064 Atet of fvel '- o hieit:= : tiror:(i� Ki";} Lzngrtirli tf.,j : •Post- III\IP:TN• . : -Cosl-PPAIP:I'P :L• . oa4 (Ili / i) _: I oN[ flbl r %):= :Post:. . . : • Po t;BAIP TP Eipoct;(]h/ac7FC Export (M /aC!• }l ) Catchment 3: Total acreage of catchment > = ac First Bn4P's TN removal rate = ° o First Bn4P's TP removal rate = ° o Second Bn4P's TN removal rate = ° o Second Bn4P's TP removal rate = ° o Third BA4P's TN removal rate = ° o Third BA4P's TP removal rate = ° o T(_)TAL TN REI\IO \'AL RATE = 0 °'o TOTAL TP REI\I(_A'AL RATE = 0 °'o . :�) . . :(2) . . . . j (l).:•:•:•:•:•f. . . ::•:•( :•:•:• •:•:E�) T. };pe of L uxl E E atchinent: S.\I: Foi ninla : _1rer:i : EMC; : . ; : • Coluimi :vei•z�ge ]E-Ik ; • :C'oliintir : - : crew' e: - • 0:11 -x-2.1 h : - :of TN n� • /L) : 2 # '3 : *:: ::of:TP ni' /li 2 :* .3 :* .6 ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.60 0.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . :Rnofiurper:tious 1.95 0.11 Rlana�ged Iieriious 1.42 0.28 : - NVood;ed:p&Viohs: • : • : • : 0.94 0.14 xi•'ea:takeh.up bd.B14IP : 1.95 0.11 Fl acfion ?m ei vibti I P Pre: B IP:TN : ; Pre -BI\IP TE .(jam•:;: :iod(lli }1) °: Lardflhir.):= . . . . . . . . . . . . r I\, I.: TN : ri e slip Tr :Tot4 _-Vr a of I1 velepnlen[t:— .Esport;(lb /�m7tr.) Eport�Klr /ac % }�) :l?bst:B1t1P TN: Pust:B1tIP 1 P Eost= BitIP:TN :Post =B SIP TE Export:(lhhic }r Etjroit�Eli1tc /vi Tar-Pamlico Stormwater Rule 15A NCA C 2B .0258 Weighted A veraze of NutrieutLoadim-s from the Catchments: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 'BAIIV: : :TN-Loading: • : : 'F]P'E ':ij . . . . . . . . . . . . . . . . . . . . . . . . . . . . H :Qatchyk, ( 1: : : : : : : : : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115.00 2.53 0.42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.00 0.00 0.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : - : -: -: - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.00 0.00 0.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . lbi:�-f F61i 66-F-,E6kt"T: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.-,.00 2.53 0.42 Last Modified 5/23/03 Note: The nutrient loading goals are 4.0 lb ac NT for TN and 0.4 lb ac NT for TP. If the post-development nutrient loading is below these levels, then the BI\lF`s planned are adequate. Otherwise, additional BI\lF`s and or modifications in development plans are required. Red-lined Construction Drawings i A lapel I a ��I ericuliwnl Eneinenrlrie E 0- 17 WCOOPERATIVE AMMM EXTENSION EEP Contacts) Krlstle Corson - Project Manager 919.7151954 Lin Xu - Review Coordinator 919.715,7571 NCSU BAE Contacts, Ryan Snith Design /Construction 919,515 0595 Kris Bass Design 919.5M8245 Bill Hunt Design 919,515 6751 Addltional Contacts, Charley Humphrey - Craven County Coop Ext. 252.633.1477 Ritter Field Stormwatc r We-t�anol plpophf -1 Craven County 45 Shoreline Dr,�` \R4 0L River Bend, NC 28562 �nr h Playground °no Inolex of Sheets ]. Cover j \ 2 Site Grading 9 3 Details (1) 41,Q � 4 Details (2) i 5 Detail Fed s C3) 11,11M x Ritter Field 4 I t� Disturbed Area - 0,9 ac Site Map A Erosion and Sediment Control Fitter fabric will be laid over the crest of the existing wooden outlet structure. The designer will then attach a piece of ply 1. t S19" wood to the structure with large 00 holes cut In It. Washed 57 stone "Y x will then be placed up and clown I stream of the ply wood for flow control and flltrntlonom (Betall on A sheet 4) 01 m- Pu:, When apply (centipede grass'seed to all disturbed areas wIth's(opes less than 3Q, cover with straw and L, tack the area, Use ProPlus TackD own or similar alternative Ritter Field (to he approved by designer), I mixed 70% water, 30% TackDown and apply liberally, slopes 3,1 or steeper (banks), apply A M on sto ., centipede grass seed, cover with 4//� I erosion control blanket and staple, Use North American Green S150BN erosion control blanketlor U,,,, similar (to be approved by 4' J--, designer). Apply blanket per 111 —60 1 manufactures Instructions using General Construction Sequence staple pattern A (Detail on sheet t xRembin within disturbance limits staked by designer 5). i ( Detall on sheet 4) *implement alt erosion control measures as described In Erosion as nd Sediment Control. section (Sheet 2) wRemove nd discard shrubs existing on the eastern bank Surface face 98 Water u �; stockplie for reapplication In the wetland and Ritter fletcl Normal Pool, Wat r Surface 982' of the existing wetland Flood t000l Pool Water urface 9&7' Drawdown lime r 2 days V wScrape top 6' of soll. within the disturbance limits and area after grading Is complete xPump water from existing wetland *Excavate eastern bank of existing wetland and apply cut to fill areas In the wetland. Leave a drainage channel In the wetland for construction, If necessary KExcess cut can he temporarily pied or spread on Ritter Field, within the staked disturbance limits, with a final *Apply �,hat will allow the field to drain w ppty , of topsoil to all disturbed areas 30 0 3,_ 0 GO wFlne grade new wetland banks to a 311 slope, pools to a 211 slope ..Qnd- grQde we.tlanoL.JbQttcm to elevations shown xAppiyr2 '-3' of organic amenclment-'.�to be selected by All Oevations in pians A, I ,q design�r� To we"�Vand --bottbm Note, I,ft Pt"', —d #Piant wet�ancl as described In Planting section (Sheet 3) relative to designer's benchmark I 1 97 ;T �Cover disturbed areas as described In Erosion and Sediment Control section (Sheet 2) NCMP9,R,AT1V1 MEMO CE N ON ANN= Drawn by, RAS Designed by: RAS Reviewed by: WFH KI-B Date: 10/2005 File Name: river—berd.dwg Scale: S�tc, C),r-r.1c-,flrq H: 1 30' Sheet 2 Rlttel� rk"I, wetland V. N/A River kmd, MC 99.00 98,00 97,00 96 00 95,C0 DATUM ELEV 94.00 0.00 GROUP BOTTOM SECTION A - -A' Wetland Profile Ide Llano' oot too -aad pool e�.PVat nn 98 P I I C , _ I I Nor Gl - ,r,��l , ir,�a F [ �F- 0.,) 0 1C.0C eO CO 80,00 100.00 P0.00 140,00 1,O OD 180 00 ?00.00 Scale H 1 - 30' _.. _..._. -... V: 1" 3'...._. Material Est.i!mates WWater lily x•(7. .\ *Spatterdock -_ 1 xPickerelweed *Lizard's tall - 455 #Arrow arum - 455 wDuck potato 355r� N(Rush - 450 W.Woolgrass - '450,',Cy WSoft stem bulrush - 455 wMarsh mallow - 20 wCardlnal- flower -_35, .8 xPlnk-- fetterbush 15) wSweet pepperbush Syr) A480 cy of soli applied to Ritter Field *Centipede seed - for 2/3 ac wStraw - for 2/3 ac xTacking - 1 case (5 gat, total) )KErosion control blanket - 6 100' roles, standard width xStaples - 1 box of 1000 KDrganlc Amendment - 65 cy xFertl(lzer - for 7200 sf 'K57 stone - 700 lbs (1/3 ton) wFliter fabric - 100 sf NC@0"PIbN E mom / Planting /f )KIn deep pools plant water lity and l spatterclock, 3 each per pool. wIn etc vatlons 97,95 - .98.2' plant pickerelweed (Pontederla cordata), lizard's tall (Saururus c rnuus), arrow w arrum (Peltandra virglnica), duck potato (Sagittarin latifolla), rush (Juncus effusus), woolgrass (Sclrpus cyperinus), soft stem bulrush (Sclrpus ill valldus). Plant on 18" centers In Y w' groups of 7 -10 and randomize the groups KDn banks, around elevation 100', plant cardinal flower (Lobella cardinalis), marsh mallows (Hibiscus moscheutos), pink fetterbush (lyonla lucida) and sweet pepperbush (Clethra alnifo(la) spaced around 4' apart Il Fertilize within 24 hours of planting with no imminent rainfall using 10- 1.0- -30 Drawn by: RAS Designed by: RAS Reviewed by: WFH, KLB Date: 1O /2005 File Name: river_bend.dwg P.lQntinq �Zor1es ihallov land planU ,, .,,_ upland F,la� -,1� ✓/ /i i�l` /a X wShaUow water / shallow land �� plants will be planted randomly within the shown area and will redistribute and fill -In naturally. N T,S Scale: D e[ a i I s t I/ Sheet 3 See details Hitte, Eerld Wea raid River Bend, W Sediment and Erosion Control Structure 57 stone and £liter fabric Hit— fubrlc will be placed o er thls plywood and on the ground o ach side of It. Wnshed 57 stone will then be placed on the 3/4' plywood fabric on each side EL. 99.3' 1.25' hales N.T.S NCCOOPERATIVE WVIIVII EXTEN &ION III ,a'l l,.�.�,u..�, Drawn by: RAS Designed by: RAS Reviewed by: WFH, KLB Disturbance Limit Parking \ \ Playgrdun �hKq I l Scale: 1 " =50' Date: 10 /2005 File Name: river_bend.dwg {/ Disturbed Area - 0.9 ac. Scale: D% a I I �' ` 2 Sheet 4 See details lilt\, Field Wetland i5,ar Bend, IVC Plywood Eslsting structure 57 stone and £liter fabric Hit— fubrlc will be placed o er thls plywood and on the ground o ach side of It. Wnshed 57 stone will then be placed on the 3/4' plywood fabric on each side EL. 99.3' 1.25' hales N.T.S NCCOOPERATIVE WVIIVII EXTEN &ION III ,a'l l,.�.�,u..�, Drawn by: RAS Designed by: RAS Reviewed by: WFH, KLB Disturbance Limit Parking \ \ Playgrdun �hKq I l Scale: 1 " =50' Date: 10 /2005 File Name: river_bend.dwg {/ Disturbed Area - 0.9 ac. Scale: D% a I I �' ` 2 Sheet 4 See details lilt\, Field Wetland i5,ar Bend, IVC NORTH AMERICAN GREEN EROSION CON'T'ROL Products . rooted S01. UTIONS 14648 HIGHWAY 41 NORTH EVANBALLE IN 4])25 9e00 )>2 -2040 nagn.a. Ego >lon Cortro. Islarkc t SLOPE INSTALLATION NORT "H AMERICAN GREEN FRS , , Lan -3o_ 1-1, Guam..I I ;o11 PI1 s 11919 HI—AY 4 1 Jnn, L c, n �L ' ro9,a 0 1.15 STAPLS PER so, YO. (1 S5 5F'N'uS P, SO. M) STAPLE PATTERN GUIDE 6.67' (2.03 M) WIDE ROLLS 1. PREPARE SOIL BEFORE INSTALLING ROLLED EROSION CONTROL PRODUCTS (RECP'e), INCLUDING ANY NECESSARY APPUCA1*N OF LIME, FERTILIZER, AND SEED. NOTE: WHEN USING CELL -O -SEED DO NOT SEED PREPARED AREA, CELL-O -SEED MUST BE INSTALLED WITH PAPER SIDE DOWN. 2, BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE RECP's IN A 6" (15 CM) DEEP X 6" (15 CM) WIDE TRENCH , WITH APPROXIMATELY 12" (30a OF RECP UP -SLO 'a EXTENDED BEYOND THE PE PORTION OF THE TRENCH. ANCHOR THE 01 RECP'e WITH A ROW OF STAPLE /STAKES APPROXIMATELY 12" (30 CM) APART IN THE BOTTOM OF THE TRENCH. PORTION F COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30 CM) PORTION OF RECP's BACK OVER SEED AND COMPACTED SOIL. SECURE RECP's OVER COMPACTED SOIL WITH A ROW OF 3. ROLL THE RECP', (A.) DOWN OR (B.) HORIZONTALLY ACROSS THE SLOPE. RECP'a WILL UNROLL WITH APPROPRIATE SIDE ^ ( ) TAPLES STAKE$ SPACED APPROXIMATELY 12" 30 CM APART ACROSS THE WIDTH OF THE ftECP'e. AGAINST THE SOIL SURFACE. ALL RECP'a MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES STAKES )U IN APPROPRIATE LOCATIONS H SHOWN IN THE STAPLE PATTERN GUIDE.. WHEN USING THE DOT SYSTEM" STAPLES /STAKES ) SHOULD BE PLACED THROUGH EACH OF ME COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN. 4. THE EDGES OF PARALLEL RECP'a MUST BE STAPLED WITH APPROXIMATELY 2" - 5" (5 CM ON RECP'a TYPE. - 12.5 CM) OVERLAP DEPENDING 5, CONSECUTIVE RECP'e SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END (SHINGLE STYLE) WITH AN APPROXIMATE. 3" (T,5 CM) OVERLAP. STAPLE THROUGH OVERIAPPED AREA, APPROXIMATELY 12" (3O CM) APART ACROSS ENURE () () O O RECP's WIDTH. NOTE IN LOOSE TH SOIL CONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER AN 6" (15 CM) MAY BE NECESSARY TO PROPERLY SECURE THE RECP's. APLES PE:R S0. , (4 .1 STAP' ESTER SD M) Ey 3'(eGm) (% I 111ES PER iC. YV. ;UX STAPLES PrR SG_ M) I1 (1-) I (� — C) � 6• Casml osm) O 0 0 O T ,IO r O t ! STAPFI I'ER S0. M M) ) ;2.0 SfAPIFS 'ER SQ, F O 0 ,IO r .S.]5 SFAPLES ;4.5 SIAIIES PER PER 51,1- vU. S0. M) Drawn by: RAS nnMEW EXTENSION .+^^ Designed by: RAS Date: 10/2005 Scale: D e t c � < NICCOOPERAT VE Reviewed b y' WFIF, KLB File Name: river_bend.dw g N: N.T.S Sheet V: N.T.S Rift r Hold WetPalyd ,o Kiver Li r:ru^1, NC, 0313012007 11:50 252-432-4%-7 Elan J. Cdodney. tvl,D- COASTAL PLAIN CONSERVATION NURSERY, INC. 3067 Conners Drive Edenton, North Carolina 27932 252 -48&5707 (office) 252 -a' 3-7009 iceliular) 252-482-4987 [tcx) Pete Rollins 3755 Hwy 55W New Bern NC 28562 phnrie',15�--637-2949 95'2-299-944? fm 12.526: 74. 41 Page 21? 3V30/07 11:48-30 Am �v > IY deliver 2 pm Wesday 17 south of New Barn. Left of Riverbend sign (pond there). 114 mile of water lank rnd-,e R. gc'200 gets and take street to right- go I block to site. DFLIVERED , "J I , I fl G S C total for plants $3,037.80 delivery by nursery $182-CX) TOTAL $3,217.80 payment by check $3,2 t 920 CURRENT BALANCE THIS ORDER Maintenance and Inspection Information ,q. July 24, 2013 Ms. Kristin E. Miguez, Project Manager North Carolina Ecosystem Enhancement Program 1652 Mail Service Center Raleigh, NC 27699 -1652 Dear Ms. Miguez: 45 Shoreline Drive River Bond, NC 26662 T 252.6383870 . F 252.638.2580 www.riverbendnc.org I am writing to respond to your request for an inspection and maintenance record for the Ecosystem Enhancement Program (EEP) project constructed in the Town of River Bend just off Plantation Drive. We regret that this report is tardy; however, the Town is aware of its responsibility to maintain this structure in accordance with the January 25, 2006 contract. The project is located across a recreation field that is adjacent to Town Hall and is inspected frequently. The condition can be described as follows: 1. There has been no encroachment on the structure. 2. The side slopes of the site are stable. 3. There is no construction taking place in the watershed that feeds this wetland. 4. There is no evidence of silting occurring in the project area. 5. The Town recently posted an updated sign explaining the wetlands project for the educational value of residents who use an adjacent walking trail. 6. NC State University has established a water quality monitoring station at the entrance point for stormwater and also at the discharge point from the wetland. We have recently requested to receive periodic updates of the results of this monitoring effort. 7. The Town has scheduled the maintenance excavation of the "fore bay" to be accomplished during the current budget year. We find that this project has advanced our citizens' understanding of stormwater issues. This educational aspect of the project is helpful as we address stormwater issues throughout the Town. If we can provide any additional input to you and your staff, please contact us. We appreciate your office's interest in BMP stormwater management, and we wish to be a good partner. Sincerely, of n rrkla` d° Mayor c: William F. Hunt, Ph.D., P.E., NC State University � u, Photos � Ilill� Il��j I J� ✓urt,? � Yxnye c , Jv is p�xn J'rM1,d✓ u.pF e�11w >h�Jd /�y'v u. Ppnv�p +. N N: J�Ye MN6 p IV Mk ':. yy��vr tl dM V fl Y 1 4y r � r u eva ioryJF, Ytl AWew� ux rv9ix`, MFu2r Y sra,✓,y River Bend BMP - Construction 2007 , 117101 w, ..0 .. a y ....... i Wn mreNl ,m...,r..JU�JrcuZtuA nvrn f. N I 1�M����pp�I�µ�N /sic �E eUm. �,yn 4 +, acklylu+ „rrt �i, e. rf t U rvVlnw v.. rla.d - ld nY a.l xO " gf .qf a Fined nV uwM:r. m nr .o- 'v Y 1 1 ry �lv a w1 w•Yao +',vp . w k4u'0 %;. ! ✓� ✓y J+a,✓ N✓n;rrt ,rvYm P ve�Y� vu clrw �mA y Vine y„ rN yrvltl i 8n �rwvp,yi m uVli��Y fl Fn Dui. River Bend BMP - Educational Signage River Bend BMP — Wooden Inlet Structure, 2009 River Bend BMP — Forebay (looking downstream), 2013 River Bend BMP — Lower end (looking upstream), 2013 River Bend BMP — Wooden outlet structure, 2009 River Bend BMP — Wooden outlet structure, 2013