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SW8080128_HISTORICAL FILE_20080626
STORMWATER DIVISION CODING SHEET POST-CONSTRUCTION PERMITS PERMIT NO. FSW8 6`d :2_V DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS © HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2 o o g p,,, 2 YYYYMMDD pF `N AT, Michael F. Easley,Governor V Q William G.Ross Jr.,Secretary 0 Y North Carolina Department of Environment and Natural Resources j Coleen H. Sullins, Director H p � Division of Water Quality June 26, 2008 Mr. Ken Fenton, President Petroleum Fuel & Terminal Company Subsidiary of Apex Oil 8235 Forsyth Blvd., Fourth Floor St. Louis, Missouri 63105-1623 Subject: State Stormwater Permit No. SW8 080128 Apex Oil Tank Expansion High Density Project New Hanover County Dear Mr. Fenton: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Apex Oil Tank Expansion on June 25, 2008. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2006-246 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 080128 dated June 26, 2008, for the construction of the subject project. This permit shall be effective from the date of issuance until June 26, 2018, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within sixty (60) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact sha Lau, or me at (910) 796-7215. Si erely, d and Beck Regional Supervisor Surface Water Protection Section ENB/ahl: S:\WQS\STORMWATER\PERMIT\080128.jun08 cc: Ms. Carrie Cranwill, Anderson & Associates, Inc. New Hanover County Building Inspections City of Wilmington Development Services Beth E. Wetherill, New Hanover County Engineering GW. .ilmington_Regional`Office Central Files 127 Cardinal Drive Extension,Wilmington,North Carolina 28405-3845 One Phone: 910-796-72151 Fax, 910-350-20041Internet: h2o,encstate,nc.us NorthCaroltna An Equal Opportunity/Affirmative Action Employer-50%Recycled/10%Post Consumer Paper Naturally State Stormwater Management Systems Permit No. SW8080128 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY COMMERCIAL DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Mr. Ken Fenton and Petroleum Fuel & Terminal Company Subsidiary of Apex Oil Apex Oil Tank Expansion 3329 River Road, Wilmington, New Hanover County FOR THE construction, operation and maintenance of 2 infiltration basins in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until June 26, 2018, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater controls have been designed to handle the runoff from 447,372.13 square feet of impervious area. 3. This basin must be operated with a 30' vegetated filter. 4. The tract will be limited to the amount of built-upon area indicated on page 3 of this permit, and per approved plans. The built-upon area for the future development is limited to 0 square feet. 5. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 6. The runoff from all built-upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 2 of 7 State Stormwater Management Systems Permit No. SW8080128 7. The following design criteria have been permitted for the infiltration basin and must be provided and maintained at design condition: Drainage Area #1 Drainage Area #2 a.Draina a Area, acres: 6.61 3.66 Onsite, ft 201,957.07 159,546.86 Off site, ft 0 0 b.Total Impervious Surfaces, ft : 201,957.07 62,710.70 c.Desi n Storm, inches: 1.5 1.5 d.Basin Depth, feet: 2.5 9 e.Bottom Elevation, FMSL: 31 25 f.Bottom Surface Area, ft : 4,949 5,037.7 g.Bypass Weir Elevation, FMSL: N/A N/A h.Permitted Storage Volume, ft : 881,469.50 400,827.00 i.Type of Soil: sand sand '.Expected Infiltration Rate, in/hr: 5.9 5.9 k.Seasonal High Water Table, FMSL: 29 22 (.Time to Draw Down, hours: 24 24 m.Receivin Stream/River Basin: Cape Fear River/ Cape Fear Basin n.Stream Index Number: 18-(71) o.Classification of Water Body: "SC" II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built-upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency: The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. G. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of bypass structure, infiltration media, flow spreader, catch basins, piping and vegetated filter. g. A clear access path to the bypass structure must be available at all times. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. Page 3 of 7 State Stormwater Management Systems Permit No. SW8080128 6. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 8. Access to the stormwater facilities shall be maintained via appropriate recorded easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built-upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built-upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. Prior to the construction of any permitted future areas shown on the approved plans, the permittee shall submit final site layout and grading plans to the Division for approval. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS 1 . This permit is not transferable to any person or entity except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change form to the Division of Water Quality, signed by both parties, and accompanied by the supporting documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Page 4of7 State Stormwater Management Systems Permit No. SW8080128 3. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit remains in force and effect until modified, revoked, terminated, or renewed. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance, renewal or termination does not stay any permit condition. 8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The permittee shall notify the Division in writing of any name, ownership or mailing address changes at least 30 days prior to making such changes. 11. The permittee shall submit a permit renewal application at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate documentation and the processing fee. Permit issued this e 26th day of June, 2008. NOR CAROLINA E VIRONMENTAL MANAGEMENT COMMISSION for Coleen H. Sullins, Director Division of Water Quality . By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No. SW8080128 Apex Oil Tank Expansion Stormwater Permit No. SW8 080128 New Hanover County Designer's Certification I, as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: SEAL Signature Registration Number Date Page 6 of 7 State Stormwater Management Systems Permit No. SW8080128 Certification Requirements: 1 . The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built-upon area. 3. All the built-upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/ bypass structure weir elevation is per the approved plan. 6. The outlet / bypass structure is located per the approved plans. 7. A Trash Rack is provided on the outlet/ bypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. 'All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. 15. All components of the stormwater BMP are located in either recorded common areas or recorded easements. cc: NCDENR-DWQ Regional Office New Hanover County Building Inspections Page 7 of 7 OFFICE USE ONLY. Date Received Fee Paid Permit Number , a 1 Sw eq 8 lz ��ees : W12ose"5- State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may he photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation,individual,etc.who owns the project): Petroleum Fuel & Terminal Company Subsidiary of Apex Oil 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Ken Fenton p���jtlJ�f.11 3. Mailing Address for person listed in item 2 above: 8235 Forsyth Blvd. , Fourth Floor City: St. Louis State: Missouri Zip: 63105-1623 Telephone Number: ( 314 ) 889-9610 4. Project Name (subdivision, facility,or establishment name-should be consistent with project name on plans, specifications,letters,operation and maintenance agreements,etc.): Apex Oil Tank Exoanion 5. Location of Project (street address): 3329 River Road City: Wilmington, NC 28412 County: New Hanover 6. Directions to project (from nearest major intersection): Site is south of the intersection of Shipyard Blvd. & River Road, near the State Port Authority. 7. Latitude: 34.13 Longitude: -77.92 of project 8. Contact person who can answer questions about the project: Name: Carrie Cranwill Telephone Number: ( 336 ) 931-0910 II. PERMIT INFORMATION: 1. Specify whether project is (check one): _x New Renewal Modification Form SWU-101 Version 3.99 Page I of 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its Issue date (if known) 3. Specify the type of project (check one): Low Density x High Density _Redevelop General Permit Other 4. Additional Project Requirements (check applicable blanks): CAMA Major X Sedimentation/Erasion Control 404/401 Permit NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION I. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project . Existing tank site and proposed expansion area will be treated with infiltration. 2. Stormwater runoff from this project drains to the Infiltrates on site River basin. 3. Total Project Area: 10.23 acres 4. Project Built Upon Area: 68.56 % 5. How many drainage areas does the project have? 5 (Existing a Proposed) 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area I Drainage Area 2 Receiving Stream Name Cape Fear River Basin Cape Fear River Basin Receiving Stream Class SC sc Drainage Area 287,825.27 sf 159,546.86 sf Existing Impervious* Area 0 AC 22,559.92 sf Proposed lmpervious*Area 201, 957.07 sf 40,150.78 sf %Impervious*Area (total) 70.0% 1 39.3% Impervious*Surface Area Drainage Area I Drainage Area 2 On-site Buildings 0 0 On-site Streets 0 0 On-site Parking 0 0 On-site Sidewalks 0 0 Other oil-site 201, 957.07 sf 62,710.7 sf Off-site 0 0 Total: 201, 957.07 sf Total: 62, 710.7 sf Impervious area is defined as the built upon area including, but not limited to, buildings, roads,parking areas, sidewalks,gravel areas, etc. Form SWU-101 Version 3.99 Page 2 of 7. How was the off-site impervious area listed above derived? Site visit, aerial mapping, and planimetric mapping. IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions,outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number,size and the allowable built-upon area for each lot must be provided as an attachment. 1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality. These covenants may not be changed or deleted without the consent of the State. 2. No more than square feet of any lot shall be covered by structures or impervious materials. Impervious materials include asphalt,gravel, concrete, brick,stone,slate or similar material but do not include wood decking or the water surface of swimming pools. 3. Swales shall not be filled in,piped, or altered except as necessary to provide driveway crossings. 4. Built-upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction. 5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below,you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above,that the covenants will be binding on all parties and persons claiming under them, that they will run with the land,that the required covenants cannot be changed or deleted without concurrence from the State,and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off-Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form SWU-101 Version 3.99 Page 3 of VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality(DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Regional Office. 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. Initials • Original and one copy of the Stormwater Management Permit Application Form 01X_ AGCNf • One copy of the applicable Supplement Form(s) for each BMP 0,('. Pcr-N> • Permit application processing fee of$420 (payable to NCDENR) (° (nP/�r Detailed narrative description of stormwater treatment/management cff • Two copies of plans and specifications, including: -Development/Project name -Engineer and firm -Legend -North arrow -Scale -Revision number& date -Mean high water line -Dimensioned property/project boundary -Location map with named streets or NCSR numbers -Original contours,proposed contours,spot elevations, finished Floor elevations -Details of roads, drainage features,collection systems,and stormwater control measures -Wetlands delineated,or a note on plans that none exist -Existing drainage (including off-site),drainage easements, pipe sizes,runoff calculations -Drainage areas delineated -Vegetated buffers (where required) VIL AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent(individual or firm): Anderson & Associates, Inc. Mailing Address: 406 Gallimore Dairy Rd. City: Greensboro State: HC Zip: 27409 Phone: ( 336 ) 931-0910 Fax: ( 336 ) 931-0990 VIII. APPLICANT'S CERTIFICATION I. (print or type narne of person listed in General Information, item 2) kern FC-6'LTON certify that the information included on this permit application form is,to the best of my knowledge,correct and that the project will be constructed in conformance with the approved plans,that the required deed restrictions and protective covenants will be recorded,and that the proposed project complies with the requirements of 15A NCAC 2H.1000. Signature: Date: Form SWU-101 Version 3.99 Page 4 of 4 Basin Information Drainage Area 3 Drainage Area 4 Draina e Area 5 Receiving Stream Name Cape Fear River Basin Cape Fear River Basin Cape Fear River Basin Receiving Stream Class Sc Sc Sc Drainage Area 21,606.97 SF 9,484.0 SF 36234.77 SF Existing Impervious Area 0 0 0 Proposed Impervious Area 10,259.69 SF 8,112.0 SF 22520.42SF % Impervious Area 47.50% 85.50% 62.15% Drainage Area 3 Drainage Area 4 Drainage Area 5 Impervious Surface Area 0 0 0 On-site Buildings 0 0 0 On-site Streets 0 0 0 On-site Sidewalks 0 0 0 Other on-site 10,259.69 SF 8,112.0 SF 22520.42 SF Off-site 0 0 0 Total: 10,259.69 SF Total: 8,112.0 SF Total: 22,520.42 SF RE:Apex Oil Tank Expansion-Wilmington Subject: RE: Apex Oil Tank Expansion - Wilmington From: "Cranwill, Carrie" <Cranwill@andassoc.com> Date: Wed, 25 Jun 2008 06:51:22 -0400 To: "Aisha Lau" <Aisha.Lau@ncmail.net> Aisha, The answer to question 5 is probably not clear on the drawings. The 100 year volume on the 11x17 sketches accounts for the volume of the tanks. We took the volume of stormwater and tank volume and adjusted the 100 year elevation. You should have gotten revised drawings last week. Thanks, Carrie -----Original Message----- From: Aisha Lau [mailto:Aisha.Lau@ncmail.net] Sent: Tuesday, June 03, 2008 5:34 PM To: Cranwill, Carrie Subject: Re: Apex.Oil Tank Expansion - Wilmington Hello Carrie, I am sorry that it has taken me longer than anticipated to get back to you. After reviewing the additional information and altered project plans I have some new additional information requests. / 1) The calculations provided show that there is enough volume in the I }nfiltration basins to infiltrate the design storm in 2 days, however it l ,'IrIM ' doesn't show that- the pumps will pump it that quickly. Please provide this calculation as well. ?j ) It appears that Infiltration Basin 41's overflow goes into Infiltration Basin 42, possibly contributing to its treatment volume. W*Since treatment units cannot overflow into other units it would likely be better to combine the two infiltration basins into a single basin or alter the overflow path to drain away from the other unit. 3) Dimensions are required even on irregular shaped structures. Please /provide the dimensions for at least one of the reported elevations for each infiltration basin, and show it on the plans. v4) Please provide' at least one cross-section for each infiltration basin on the plans so that the slopes can be shown. 5) The calculations show how the volume of the 100 year storm was calculated based on conical values at each elevation. Were the volumes of the tanks subtracted from these values somewhere? I was'unable to find it. Please provide the requested information by June 25, 2008 or the project will be returned as incomplete. If you have any additional questions don't hesitate to call or e-mail me. Take care, Aisha Cranwill, Carrie wrote: Aisha, 1 of 2 6/25/2008 9:48 AM RE: Apex Oil Tank Expansion-Wilmington I wanted to follow up and see if you had any questions etc. that we needed to discuss concerning the Apex Oil project. Please let me know if you would like to have a conference call as I mentioned below to clear up any questions or concerns. Thanks, Carrie ------------------------------------------------------------------------ *From:* Cranwill, Carrie *Sent:* Friday, May 02, 2008 12 :23 PM *To:* ' aisha.lau@ncmail.net' *Subject:* Apex Oil Tank Expansion - Wilmington Aisha, You will be receiving the drawings today (if you have not already) and John Joyner is dropping off new maintenance agreements. We had to prepare stormwater calcs for you and for the city. There were 3 sheets of pre and post cn values that did not get included in your booklet that I think you will need - they were in the Wilmington booklet. I have attached them with this email just in case. If you have any questions or. concerns when you review the drawings please give us a call. This site does not fit "in the box" and it might be easier to have a conference call that I would like to include Jim Billups in to discuss the site when you get a chance. Thanks Carrie Cranwill, RLA, EI, Project Manager */Anderson & Associates, Inc./* 406 Gallimore Dairy Road Greensboro, NC 27409 Phone:336/931-0910 Fax:336/931-0990 cranwill@andassoc.com web: www.andassoc.com gis: www.webgis.net 2 of 2 6/25/2008 9:48 AM RECEIVED JUN 17 2008 A®, BY: Q 1 ❑LISPS ❑UPS ®Attached ANDERSON a ASSOCIATES, INC. LETTER OF TRANSMITTAL PROFESSIONAL DESIGN SERVICES 406 GALLIMORE DAIRY ROAD.,GREENSBORO,NC 27409 Phone 336-931-0910 FAX 336-931-0990 DATE 06/16/08 JOB NO. 25692 TO: NCDENR Wilmington Regional Office A I I LN I IUN Aisha H. Lau RE: Apex Oil Wilmington Site Expansio 127 Cardinal Drive Extension Wilmington, NC 28405 U Phone# 910-796-7215 We are sending you ®Attached ❑Under separate cover via the following items: ❑Shop drawings ❑Prints ®Plans ❑Samples ❑Specifications ❑Copy of Letter ❑Change Order ❑ Copies Date No. Description 1 06/16/08 25692 Stormwater Calculations/Narrative 2 06/16/08 25692 Sets of Site Review Drawings THESE ARE TRANSMITTED as checked below ❑For approval ❑Approved as submitted ❑Resubmit_copies for approval ®For your use ❑Approved as noted ❑Submit_copies for distribution ❑As requested ❑Returned for corrections ❑Return —corrected prints ®For review and comment ❑ ❑For Bids Due ❑Prints returned after loan to us Remarks Copy to file Signed STORMWATER MANAGEMENT PLAN DWQ PETROLEUM FUEL AND TERMINAL COMPANY APEX OIL SITE EXPANSION 3329 RIVER ROAD WILMINGTON, NC RECEIVED Prepared by: JUN 17 2008 James R. Billups, PE Anderson & Associates, Inc. 406 Gallimore Dairy Road Greensboro, NC 27409 \,.��o�z"Ilc Phone: 336-931 -0910 ;� �, oFesSEAL s;•�� % 007416 May 1 , 2008 %9� �O ONE g A&A Project No. 25692.00 ' d� —/— �o0fj 6 � /6 - zDoB „ Stormwater Narrative Owner: Apex Oil 8235 Forsyth Blvd. Fourth Floor St. Louis,Missouri 63105-1623 (314) 889-9610 Local Terminal Manaeer: . John Joyner Apex Oil 3314 River Road Wilmington N.C. 28412 (910)799-0030 Designer: Anderson &Associates, htc. 406 Gallimore Dairy Road Greensboro,N.C. 27409 (336) 931-0910 Site Location: Project site is located at 3329 River Road, Wilmington Road,N.C. Purpose of land disturbingactivity: Proposed disturbance is for the expansion and repair of an existing tank storage facility. The expansion includes the construction of 3 new fuel storage tanks and the required containment area.The repair area is the dike system around the existing tanks. Upon analysis of the existing dike area it was determined that the existing dikes have eroded and are no longer able to contain the required volume. For this reason the existing tank area dikes are being restored to contain the required volume necessary to hold 110 percent of the largest tank. The existing dikes and the proposed dikes will be stabilized with a layer of clay and crushed concrete. Project explanation: The site is partially developed with two existing fuel storage tanks located on the front portion of the site adjacent to River Road and the rear portion is currently wooded and undeveloped.The topography of the site is such that the front area is contained within a dike and the undeveloped portion is essentially a"bowl' shape with a low spot contained in the wooded area. Probably due to the development of the adjacent properties the natural drainage through the property was cut off,creating essentially a bowl for stormwater to collect in. An isolated wetland is located on-site in one area of the basin. The wetlands have been reviewed by the Corp of Engineers and are less than the acreage regulated by NCDENR. Due to the design criteria required for a tank storage farm, the bowl shaped area is increasing to achieve the volume required. Storm drainage from on-site and the majority of the off-site water will continue to collect on the proposed expansion area. In order to address the need for containment and stormwater treatment, the stormwater will be collected and held in the proposed dike area.The proposed dike area will be lined with a layer of clay. The water will be pumped through an oil & water separator(pre-treatment)at a controlled rate and released to an infiltration area. Soil Description: Based on available mapping the soils on site consist of: UR—Urban Land, Hydrologic group not identified LY—Lynn Haven, Hydrologic group B/D BE—Baymeade Fine Sand, Hydrologic group A Based on a Soils Report from Terraquest dated October 5, 2007; the predominate soil lithology on the site up to a depth of 15' BGL is a loose to very loose to moderately dense fine grained Sand (SC) with varying colors of tan, orange, white,brown,grey, and black. Site observations show freely draining soils, with the exception of the small area containing Lynn Haven soils, where the isolated wetlands occur. Therefore, the Urban Land portion of the site is considered to be soils of Hydrologic Group A,taken from surrounding sandy soils. An Infiltration Evaluation was performed by ECS Carolinas, LLP dated March 18, 2008. This report was prepared to confirm the ability to use infiltration as the ultimate stormwater BMP for the newly developed portion of the site, and to confirm the continued use of infiltration as the method for stormwater control for the existing development portion of the site. It should be noted that the existing portion of the site has never had an outlet,and there is no evidence that stormwater has ever exited the site by overtopping of the diked areas for the entire time the existing development site has been diked, a time estimated to be about 30 years,despite several major hurricane strikes in the project area.. Storm Water Run Off: Dike Area#1 The stormwater volumes calculated for the proposed dike area at the rear of the site are based on the SCS Method and calculated using Hydraflow. A weighted CN number was determined based on proposed and existing site conditions. The interior floor of the proposed dike will have a 8" clay and 8"crushed concrete liner,so all calculations are based on dike area#1 being considered impervious/impermeable Stormwater runoff to the diked area will be totally contained within the diked area, until the stormwater is manually released. The dike area can contain far greater than the 100 year storm, and the Hydraflow hydrograph exhibits include a model of the containment area as a"pond", with storm events up to the 100-year event routed to the"pond" to show that the design storms are totally contained with a safety factor greater than 2. Thus,there is no need for an emergency overflow from the diked area. For a storm event that could possibly result in overflow of the diked area, the more likely failure scenario would be breaching of the dike from flooding outside of the containment area. Stormwater collected within the dike area will be retained until physically inspected to ensure there are no petroleum contaminants in the stormwater. The stormwater will then be pumped to an oil water separator, having a maximum capacity of 200 gallons per minute(gpm) of flow rate, and then discharge to the infiltration basin area. Pumps will have a maximum discharge rate of 200 gpm(less than 0.5 cfs). . Should petroleum constituents be observed in stormwater runoff, the facility will be required to follow procedures found in its approved SPCC plan for mitigation and remediation prior to discharge to the infiltration area. Dike Area#2 As noted previously, this area has infiltrated naturally for over 30 years from all stormwater runoff events. Repair of the existing dike will occur without construction traffic being allowed over the infiltration area. Hydraflow runoff hydrographs were prepared, and the dike area modeled as a pond,to show that the 100-year storm event is well contained within the dike area, with no allowance for infiltration in the storage calculations. No emergency overflow will be provided,as a storm event of such great magnitude to be able to fill the dike area will likely destroy the dike area from the outside, rather than the dike breaching from overtopping of the contained stormwater runoff.' . Pre and Post drainage areas are shown on the detail sheet. Stormwater Runoff calculations are based on the assumption that the area of the site expansion within the proposed dike area#1 being impervious and existing dike area#2 continuing with on- site infiltration. Off-site drainage area was determined based on available mapping and is shown on the detail sheets of the construction package. Vegetation on site: The existing containment dikes for the front of the property are maintained in a"relatively vegetative free state." The site is sprayed at least once a year to kill any plant growth that could pose a hazard to the facility. Based on current site conditions for the existing developed area and the regulations discouraging vegetation, the site will consist of crushed concrete covered dikes and floor over a clay liner for dike area#1 and crushed concrete covered dikes and a sand floor for the existing dike area#2. As previously documented for the City OF Wilmington Board of Adjustment, the site will be kept free of vegetation. The removal of existing vegetation and maintaining a clear site is addressed in the following code references. From the API Standard 2610, Design,Construction, Operation,Maintenance,and Inspection of Terminal &Tank Facilities: Section 5—Fire Prevention and Protection, 5.2.5—'The dike area and the area around storage tanks shall be kept clean of combustible materials that potentially could be a source of fire exposure to the tank". Section 7—Dikes and Berms, 7.2.11 Weed Control "Measures shall be taken to ensure that any vegetation adjacent to or within the diked area is kept to a level that does not pose a threat to successful fire control'. From the North Carolina Fire Prevention Code: Section 304—Combustible Waste Material—304.1.2 Vegetation. "Weeds, grass, vines or other growth that is capable of being ignited and endangers property, shall be cut down and removed by the owner or occupant of the premises". Section 3404 Storage—3404.2.6 Separation from incompatible materials. "Grass, weeds, combustible materials and waste class I,II, or IIIA liquids shall not be accumulated in an unsafe manner at a storage site". Vegetation off-site (Adjacent Property): All disturbed areas will be seeded and amended as noted on the construction drawings. Construction Sequence: Construction sequence is noted on the detail sheets of the construction drawings. ANDERSON JOBWC/1l_ IA [LM 1 R�f e SHEET NO. / OF ANY AS L� ASSOCIATES PROFESSIONAL DESIGN SERVICES CALCULATED BY /1/✓ DATE-1 �7 LI'V d 406 GALLIMORE DAIRY RD. GREENSBORO.NC 27409 (336)931-0910 FAX(336)931-0990 CHECKED BY DATE SCALE P - CnruS)" (,� olu .... G CC�N ¢V,' tUlG`7�c� . ,.......... fly G�c �Jep�?pt1 vNd NGQcci GRcJ �l b1� -5O des. ... _.. I , ........... s CN QRf1J�G ,aQ� s C�lob , c fz� :.. .......... �3Ux 'ssUJ + (ha�C 3,W`1J eOeANDERSON JOB Af-r- V WuAiwa)lu AND SHEET NO. OF ASSOCIATES PROFESSIONAL DESIGN SERVICES CALCULATED BY DATE 4J-Q� 406 GALLIMORE DAIRY RD. GREENSBORO. 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Orr ............ - ........... ........................ ..................I .......... ....... t i . . . ...................... .......... ....................... .... ....................... ... Hydrograph Summary Report Hydraflow Hydrographs by lntelisolve v9.23 Hyd. Hydrograph Peak Time Time to Hyd. Inflow Maximum Total Hydrograph No. type flow Interval peak volume hyd(s) elevation strge used description (origin) (cfs) (min) (min) (tuft) (ft) (tuft) 1 SCS Runoff 0.005 2 1444 69 ---- ------ ------ Apex Wilmington Pre Area 1 2 SCS Runoff 3.894 2 738 20.086 --- ------ ------ Apex Wilmington Pre Area 2 3 SCS Runoff 6.882 2 728 26,481 ---- ------ ------ Apex Wilmington Post Area 2 4 SCS Runoff 8.966 2 738 44,318 --•- •—•-- ------ Apex Wilmington Post Area 1 6 Reservoir 0.000 2 n/a 0 4 32.33 44,318 Area 1 Containment 7 Reservoir 0.000 2 n/a 0 3 27.31 26,481 Area 2 Containment apexwilmington2dwq_ponds.gpw Return Period: 1 Year Thursday, May 1, 2008 2 Hydrograph Plot Hydraflow Hydrographs by Intelisolve Wednesday,Apr 30 2008, 11:30 AM Hyd. No. 1 Apex Wilmington Pre Area 1 Hydrograph type = SCS Runoff Peak discharge = 0.01 cfs Storm frequency = 1 yrs Time interval = 2 min Drainage area = 6.650 ac Curve number = 35.7 Basin Slope = 1.3 % Hydraulic length . = 1116 ft Tc method = LAG Time of conc. (Tc) = 99.67 min Total precip. = 3.83 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Hydrograph Volume=69 cult Apex Wilmington Pre Area 1 Q (cfs) Hyd. No. 1 -- 1 Yr Q (cfs) 0.10 0.10 0.09 0.09 0.08 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.01 0.01 0.00 0.00 0 3 5 8 11 13 16 19 21 24 27 — Hyd No. 1 Time (hrs) Hydrograph Plot 2 Hydraflow Hydrographs by Intelisolve Wednesday,Apr 30 2008,6:38 PM Hyd. No. 4 Apex Wilmington Post Area 1 Hydrograph type = SCS Runoff Peak discharge = 8.97 cfs Storm frequency = 1 yrs Time interval = 2 min Drainage area = 6.600 ac Curve number = 79.7 Basin Slope = 1.7 % Hydraulic length = 1007 ft Tc method = LAG Time of conc. (Tc) = 24.79 min Total precip. = 3.83 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Hydrograph Volume=44,318 cuft Apex Wilmington Post Area 1 Q (cfs) Hyd. No. 4-- 1 Yr Q (cfs) 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 2 5 7 9 12 14 16 19 21 23 26 — Hyd No. 4 Time (hrs) Hydrograph Plot 2 Hydraflow Hydrographs by Intellsolve Wednesday,Apr 30 2008, 11:30 AM Hyd. No. 2 Apex Wilmington Pre Area 2 Hydrograph type = SCS Runoff Peak discharge = 3.89 cfs Storm frequency = 1 yrs Time interval = 2 min Drainage area = 5.000 ac Curve number = 67.8 Basin Slope = 2.0 % Hydraulic length = 630 ft Tc method = LAG Time of conc. (Tc) = 22.02 min Total precip. = 3.83 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Hydrograph Volume=20,086 curt Apex Wilmington Pre Area 2 Q (cfs) Hyd. No. 2-- 1 Yr Q (cfs) 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 2 5 7 9 12 14 16 19 21 23 26 Hyd No. 2 Time (hrs) - Hydrograph Plot 2 Hydraflow Hydrographs by Intelisolve Wednesday,Apr 30 2008,6:38 PM Hyd. No. 3 Apex Wilmington Post Area 2 Hydrograph type = SCS Runoff Peak discharge = 6.88 cfs Storm frequency = 1 yrs Time interval = 2 min Drainage area = 3.660 ac Curve number = 80.4 Basin Slope = 1.9 % Hydraulic length = 508 ft Tc method = LAG Time of conc. (Tc) = 13.27 min Total precip. = 3.83 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Hydrograph Volume=26,481 cuff Apex Wilmington Post Area 2 Q (cfs) Hyd. No. 3-- 1 Yr Q (cfs) 7.00 7.00 6.00 6.00 5.00 5.00 4.00 . 4.00 _ . _........ _._- 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 2 5 7 9 12 14 16 19 21 23 26 — Hyd No. 3 Time (hrs) Hydrograph Summary Report Hydraflow Hydrographs by lntelisolve v9.23 Hyd. Hydrograph Peak Time Time to Hyd. Inflow MaximumFstrge Total Hydrograph No. type flow Interval peak volume hyd(s) elevation used description (origin) (cfs) (min) (min) (cult) (ft) (cuft) 1 SCS Runoff 5.908 2 796 72,492 ---- ------ ----- Apex Wilmington Pre Area 1 2 SCS Runoff 32.15 2 736 153,066 ---- ------ ------ Apex Wilmington Pre Area 2 3 SCS Runoff 34.68 2 728 138,281 -•-- ------ ------ Apex Wilmington Post Area 2 4 SCS Runoff 46.18 2 736 235,753 ---- ------ ----- Apex Wilmington Post Area 1 6 Reservoir 0.000 2 n/a 0 4 _ 34.89 235,753 Area 1 Containment 7 Reservoir 0.000 2 n/a 0 3 29.99 138,281 Area 2 Containment apexwilmington2dwq_ponds.gpw Return Period: 100 Year Thursday, May 1, 2008 Hydrograph Report ' Hydraflow Hydrographs by Intelisolve v9.23 Thursday,May 1,2008 Hyd. No. 6 Area 1 Containment Hydrograph type = Reservoir Peak discharge = 0.000 cfs Storm frequency = 100 yrs Time to peak = n/a Time interval = 2 min Hyd. volume = 0 cuft Inflow hyd. No. = 4 - Apex Wilmington Post Area 1 Max. Elevation = 34.89 ft Reservoir name = Area 1 New Containment Max. Storage = 235,753 cuft Storage Indication method used. Area 1 Containment Q (cfs) Q(cfs) Hyd. No. 6 -- 100 Year 50.00 50.00 40.00 40.00 30.00 30.00 20.00 20.00 10.00 10.00 0.00 1 Rim— 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) — Hyd No. 6 — Hyd No. 4 ( Total storage used = 235,753 cuff Pond Report 2 Hydraflow Hydrographs by Intelisolve v9.23 Thursday.May 1,2008 Pond No. 2 - Area 1 New Containment Pond Data Contours-User-defined contour areas.Conic method used for volume calculation. Begining Elevation=31.00 ft Stage/Storage Table Stage(ft) Elevation(ft) Contour area(sgft) Incr.Storage(tuft) Total storage(tuft) 0.00 31.00 21,693 0 0 1.00 32.00 37,448 29,211 29,211 2.00 33.00 55,301 46,081 75,292 3.00 34.00 87,415 70,741 146,033 4.00 35.00 114,764 100,779 246.812 5.00 36.00 121,565 118.147 364,959 6.00 37.00 125,951 123,739 488,698 7.00 38.00 130,255 128,084 616,782 8.00 39.00 134,659 132,438 749.220 9.00 40.00 139,054 136,837 886,057 10.00 41.00 143,321 141,168 1,027,225 Culvert/Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise(in) = 0.00 0.00 0.00 0.00 Crest Len(ft) = 0.00 0.00 0.00 0.00 Span(in) = 0.00 0.00 0.00 0.00 Crest El.(I ft) = 0.00 0.00 0.00 0.00 No. Barrels = 0 0 0 0 Weir Coeff. = 0.00 0.00 0.00 0.00 Invert El.(ft) = 0.00 0.00 0.00 0.00 Weir Type = --- --- --- --- Length(ft) = 0.00 0.00 0.00 0.00 Multi-Stage = No No No No Slope(%) = 0.00 0.00 0.00 n/a N-Value = .000 .000 .000 n/a Orifice Coeff. = 0.00 0.00 0.00 0.00 Exfil.(Infhr) = 0.000(by Contour) Multi-Stage = n/a No No No TIN Elev.(ft) = 0.00 Note:Culved/Ndtice oudlows are analyzed under inlet(ic)and outlet(m)control. Weir risers checked tw oritim oendilions(ic)and submergence(a). Stage(ft) Stage/Discharge Elev(ft) 10.00 41.00 8.00 39.00 6.00 37.00 4.00 35.00 2.00 33.00 F:::::E 0.00 31.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 - Total O Discharge(cfs) Hydrograph Report 3 HydraFlow Hydrographs by Intelisolve v9.23 Thursday,May 1,2008 Hyd. No. 7 Area 2 Containment Hydrograph type = Reservoir Peak discharge = 0.000 cfs Storm frequency = 100 yrs Time to peak = n/a Time interval = 2 min Hyd. volume = 0 cuft Inflow hyd. No. = 3 - Apex Wilmington Post Area 2 Max. Elevation = 29.99 ft Reservoir name = Area 2 Existing Containment Max. Storage = 138,281 cuft Storage Indication method used. Area 2 Containment Q(cfs) Hyd. No. 7-- 100 Year Q (cfs) 35.00 35.00 30.00 30.00 25.00 1 1 1 1 1 1 1 25.00 20.00 20.00 15.00 15.00 10.00 10.00 5.00 5.00 ftw—vi 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) — Hyd No. 7 — Hyd No. 3 Total storage used= 138,281 cuff Pond Report 4 • Hydraflow Hydrographs by Intelisolve v9.23 Thursday,May 1,2008 Pond No. 1 - Area 2 Existing Containment Pond Data Contours-User-defined contour areas.Conic method used for volume calculation.Begining Elevation=24.00 it Stage/Storage Table Stage(ft) Elevation(ft) Contour area(scift) Incr.Storage(curt) Total storage(curt) 0.00 24.00 00 0 0 1.00 25.00 5,038 1,679 1,679 2.00 26.00 8,784 6,824 8,503 3.00 27.00 13,842 11,216 19,720 4.00 28.00 30,447 21,604 41,324 5.00 29.00 50,035 39,834 81,157 6.00 30.00 66,315 57,978 139,136 7.00 31.00 69,211 67,751 206,887 8.00 32.00 97,972 83,168 290,055 9.00 33.00 105,512 101,709 391,763 10.00 34.00 119,027 112,190 503,954 Culvert/Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise(in) = 0.00 0.00 0.00 0.00 Crest Len(ft) = 0.00 0.00 0.00 0.00 Span(in) = 0.00 0.00 0.00 0.00 Crest El.(ft) = 0.00 0.00 0.00 0.00 No.Barrels = 0 0 0 0 Weir CoeH. = 0.00 0.00 0.00 0.00 Invert El.(ft) = 0.00 0.00 0.00 0.00 Weir Type = --- --- --- --- Length(ft) = 0.00 0.00 0.00 0.00 Multi-Stage = No No No No Slope(%) = 0.00 0.00 0.00 n/a N-Value = .000 .000 .000 n/a - Orifice Coeff. = 0.00 0.00 0.00 0.00 Exfil.(Infhr) = 0.000(by Wet area) Multi-Stage = n/a No No No TW Elev.(ft) = 0.00 Note:Culven/0ilice oudlors are analyzed under Inlet(to)and outlet(w)control. Weir riaers checked for orifice conditions(ic)and suMrergence(a). Stage(ft) Stage/Discharge Elev(ft) 10.00 34.00 8.00 32.00 6.00 30.00 4.00 28.00 2.00 26.00 0.00 24.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 Total O Discharge(cfs) Phone 336-931-0910 FAX 336-931-0990 MAY 0 2 1 � ,❑ PS ❑UPS ®Attached ANDERSON &ASSOCIATES, INC. Q�'' L E T ER OF TRANSMITTAL PROFESSIONAL DESIGN SERVICES 406 GALLIMORE DAIRY ROAD.,GREENSBORO,NC 27409 DATE 5/2/08 JOB NO. 25692 TO: NCDENR Wilmington Regional Office Aisha H. Lau G G 127 Cardinal Drive Extension Re Apex Oil Wilmington Site Expansion Wilmington, NC 28405 Phone# 910-796-7215 We are sending you ®Attached ❑Under separate cover via the following items: ❑Shop drawings ❑Prints ®Plans ❑Samples Specifications ❑Copy of Letter ❑Change Order ❑ Copies Date No. Description 2 5/2/08 25692 Sand Filter Maintenance Agreement 1original/1copy) 2 5/2/08 25692 Sand Filter Maintenance Agreement (1 original/1 copy) THESE ARE TRANSMITTED as checked below ❑For approval ❑Approved as submitted ❑Resubmit copies for approval ®For your use [--]Approved as noted []Submit_copies for distribution ❑As requested ❑Retumed for corrections ❑Return_corrected prints ®For review and comment ❑ ❑For Bids Due ❑Prints returned after loan to us Remarks Copy to file Signed i U10 s('1V0 �olz � ® ® ❑USPS ❑UPS ®Attached ANDERSON s ASSOCIATES, INC. LETTER OF TRANSMITTAL PROFESSIONAL DESIGN SERVICES 406 GALLIMORE DAIRY ROAD.,GREENSBORO, NC 27409 Phone 336-931-0910 FAX 336-931-0990 DATE 05/01/08 JOB NO. 25692 TO: NCDENR Wilmington Regional Office AishaH. Lau JVJ RE: Apex Oil Wilmington Site Expansion 127 Cardinal Drive Extension Wilmington, NC 28405 D MAY Phone# 910-796-7215 We are sending you ®Attached []Under separate cover via the following items: ❑Shop drawings ❑Prints ®Plans ❑Samples ❑Specifications ❑Copy of Letter ❑Change Order ❑ nCo ies Date No. Description 2 1/8/08 25692 Revised Application Form Loriginal/1 Co 1 10/5/07 25692 Soils Report New Report) 1 4/30/08 25692 Stormwater Calculations/Narrative 2 5/1/08 25692 Sets of Site Review Drawings 1 4/30/08 25992 Infiltration Supplement Area 1 & Area 2 incl. w/calcs THESE ARE TRANSMITTED as checked below ❑For approval ❑Approved as submitted ❑Resubmit_copies for approval ®For your use ❑Approved as noted []Submit_copies for distribution ❑As requested ❑Returned for corrections ❑Return _corrected prints ®For review and comment ❑ ❑For Bids Due ❑Prints returned after loan to us Remarks Copy to file Signed Re:Apex Oil- Wilmington- deadline extension Subject: Re: Apex Oil - Wilmington - deadline extension From: Aisha Lau <Aisha.Lau@ncm ail.net> Date: Wed, 02 Apr 2008 13:14:24 -0400 To: "Cranwill, Carrie" <Cranwill@andassoe.com> Hello Carrie, I will be looking for your additional information by May 5th, which is 30 days from your original due date of April 4, 2008. If I don't have the application by then, or if the submission is not permittable by the time that I receive it, I will have to return the application. I also double checked with my coworker, and confirmed that there is no "maximum" BUA limit. The only limitation on the amount of BUA a site has after it has crossed the high density threshold is the space requirement of the BMPs designed to treat all of that BUA. Take care, Aisha Cranwill, Carrie wrote: Aisha, As per our phone conversation yesterday, I would like to request the 30 day extension for re-submittal on the Apex Wilmington site. We are addressing some additional site issues. If I calculated correctly we need to have revised drawings to you by May 5th, please confirm if that is correct (although we hope to have them in sooner). Also I wanted to see if you found out anything about the impervious limits? Thanks, Carrie Cranwill, RLA, El, Project Manager Anderson & Associates, Inc. 406 Gallimore Dairy Road Greensboro,NC 27409 Phone:336/93 1-0910 Fax:336/931-0990 cranwil l 2,andassoc.com web:www.andassoc.com gis: www.webgis.net 1 of 1 4/2/2008 2:48 PM F ----7rM R-9-P ECS CAROLINAS, LLP VwRk a Geotechnical < Construction Materials •Environmental •Facilitie March 18,2008 Ms.Carrie Cmnwill,RLS,EI Anderson&Associates Inc. 406 Gallimore Dairy Road Greensboro,North Carolina 27409 Re: Infiltration Evaluation Apex Oil Wilmington,North Carolina ECS Project No. 22.13878 Dear Ms. Cranwill, ECS Carolinas, LLP (ECS) recently conducted an infiltration evaluation for the proposed infiltration area at the site located at 3329 River Road in Wilmington, North Carolina. This letter,with attachments,is the report of our evaluation. Field Testing On March 14, 2008 ECS conducted an exploration of the subsurface soil and ground water conditions at six requested locations shown on the attached Site Diagram. ECS field located the test locations by utilizing a scaled site map provided by Anderson & Associates. The purpose of this exploration was to obtain subsurface information of the suitability of the in-place soils for the proposed infiltration area. We explored the subsurface soil and ground water conditions by advancing one hand auger boring into the existing ground surface at the six requested boring locations. We visually classified the subsurface soils and obtained representative samples of each soil type encountered. We also recorded the ground water level observed at the time of each hand auger boring. The attached Infiltration Evaluation Form provides a summary of the subsurface conditions encountered at each hand auger boring location. The ground water level and the seasonal high ground water level (SHWL) were estimated at each boring location below the existing grade elevation. Below is a summary of each boring location. Location Water Level SHWL - 1 > 108 inches 60 inches 2 > 108 inches 32 inches 3 > 108 inches , 48 inches `-q— -�— > 108 inches %�`24 inches 5 70 inches %T'-20 inches��l� 6 50 inches �� 24 inches /' 7211 Ogden Business Park •Suite 201 •Wilmington,NC 29411 •(910)686-9114 •Fax(910)686-9666 •www.ecslimited.com Asheville,NC•Charlotte.NC•Greensboro.NC-Greenville,SC-Raleigh.NC-Swansboro,NC* Wilmington,NC *testing services only Infiltration Evaluation Apex Oil Wilmington,North Carolina ECS Project No.22.13878 We have conducted six infiltration tests using a compact constant head permeameter near the hand auger borings to estimate the infiltration rate for the subsurface soils. The infiltration tests are typically conducted at two feet above the SHWL. Field Test Results Below is a summary of the infiltration test results: Location Description Depth Inches/hour Inches/minute 1 Tan fine SAND 36 inches 12.4 0.20 2 Grey fine to 10 inches 17.5 0.29 med. SAND 3 Tan/yellow fine 24 inches 16.7 0.28 SAND 4 Brown fine 10 inches 12.9 0.24 SAND 5 White medium 10 inches 28.5 0.50 SAND 6 Brown fine 10 inches 5.9 0.10 SAND Infiltration rates and SHWL may vary within the site due to changes in elevation and subsurface conditions. If you have any questions regarding this report,please contact us at (910)686-9114. Respectfully, ECS CAROLINAS,LLP K.Brooks Wall Walyd M. Sobh,P.E. Staff Geologist Principal Engineer NC License No. 22983 Attachments: Site Diagram hifiltration Evaluation i p \\ � } ° \ > ') \ 4a l /, 2 \® |.| , a,SmIe FIGURE i Test Location Map . � . Test Location Apex Oil 25� ��# wAm me . LL@ m &as KB« c�ko�■��■ Infiltration Evaluation Apex Oil Wilmington, North Carolina ECS Project No. 22.13878 March 14, 2008 Location Depth Soil Description 1 0-48" Tan fine SAND 48"-108" Orange fine SAND Seasonal High Water Table was estimated to be at 60 inches below the existing grade elevation. Infiltration Rate: 0.20 inches per minute (12.4 inches per hour) Test was conducted at 36 inches below existing grade elevation Ground water was not encountered up to 108 inches below the existing grade elevation. Location Depth Soil Description 2 0-6" Tan fine SAND 6"-32" Grey fine to medium SAND 32"-34" Hard Pan 34"-108" Tan/grey fine to medium SAND Seasonal High Water Table was estimated to be at 32 inches below the existing grade elevation. Infiltration Rate: 0.29 inches per minute (17.5 inches per hour) Test was conducted at 10 inches below existing grade elevation Ground water was not encountered up to 108 inches below the existing grade elevation Location Depth Soil Description 3 0-48" Tan/yellow fine SAND 48"-108" Grey/brown fine to medium SAND Seasonal High Water Table was estimated to be at 48 inches below the existing grade elevation. Infiltration Rate: 0.28 inches per minute (16.7 inches per hour) Test was conducted at 24 inches below existing grade elevation Ground water was not encountered up to 108 inches below the existing grade elevation Infiltration Evaluation Apex Oil Wilmington, North Carolina ECS Project No. 22.13878 March 14, 2008 Location Depth Soil Description 4 0-18" Brown fine SAND 1 8"-24" Orange fine SAND w/little clay 24"-46" Tan fine to medium SAND 46"-90" Brown/grey fine SAND w/ some clay 90"-108" Tan fine SAND Seasonal High Water Table was estimated to be at 24 inches below the existing grade elevation. Infiltration Rate: 0.24 inches per minute (12.9 inches per hour) Test was conducted at 10 inches below existing grade elevation Ground water was not encountered up to 108 inches below the existing grade elevation Location Depth Soil Description 5 0-20" White medium SAND 20"-38" Hardpan 38"-70" Tan fine SAND Seasonal High Water Table was estimated to be at 20 inches below the existing grade elevation. Infiltration Rate: 0.50 inches per minute (28.5 inches per hour) Test was conducted at 10 inches below existing grade elevation Ground water was encountered at 70 inches below the existing grade elevation Location Depth Soil Description 6 0-10" Hardpan 10"-40" Brown fine SAND 40"-50" Tan fine SAND w/little clay 501 -60" Brown medium to coarse SAND Seasonal High Water Table was estimated to be at 24 inches below the existing grade elevation. Infiltration Rate: 0.10 inches per minute (5.9 inches per hour) Test was conducted at 10 inches below existing grade elevation Ground water was encountered at 50 inches below the existing grade elevation OF\NArFq Michael F.Easley,Governor William G.Ross Jr.,Secretary North Carolina Department of Environment and Natural Resources > Coleen H.Sullins,Director QO ,c Division of Water Quality March 7, 2008 Mr. Ken Fenton Petroleum Fuel & Terminal Company Subsidiary of Apex Oil 8235 Forsyth Blvd., Fourth Floor St. Louis, MO 63105-1623 Subject: Request for Additional Information Stormwater Project No. SW8 080128 Apex Oil Tank Expansion New Hanover County Dear Mr. Fenton: The Wilmington Regional Office received a State Stormwater Management Permit Application for Apex Oil Tank Expansion on January 30, 2008. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Please complete the required sand filter supplement, which you can find and complete online at (http://h2o.enr.state.nc.us/su/bmp_forms.htm). 2. Please indicate sand filter depths on the plans. 3. Enclosed you will find the checklist that we use when reviewing sand filter applications. As it indicates, please report all areas in square feet instead of acres on the application form. 4. Please ensure that measurements line up properly on the drawings. The dimensions of the sand filters on the plans appear to be askew. 5. Please add the requested title on section 1.2 of the application form. 6. Please initial the lines indicating that the listed information has been provided at the top of page 4 of the application. 7. Please print the signer of the application's name at the bottom of page four. 8. Remember that a change to one number may have a domino effect on other numbers. Please check all plans, calculations and forms and make changes as needed. Note that this request for additional information is in response to a preliminary review. The requested information should be received in this Office prior to April 4, 2008, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail, email or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required-information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. 127 Cardinal Drive Extension,Wilmington,North Carolina 28405-3845 One Phone: 910-796-7215/Fax: 910-350-2004/Internet: h2oancstate.nc.us NorthCarolina An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper ;Vatura!!rf Mr. Ken Fenton March 7, 2008 Stormwater Application No SW8 080128 The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7331 or email me at aisha.lau@ncmail.net. Sincerely, Aisha H. Lau Environmental Engineer ENB/ahl: S:\WQS\STORMWATER\ADDINFO\2008\080128.mar08 cc: Ms. Carrie Cranwill WiRO file Page 2 of 2 O�0F W A 7Fi9 Michael F.Easley,Governor William G.Ross Jr.,Secretary rI ' 'n\ North Carolina/Department of Environment and Natural Resources O Y Ifr ll r / Coleen H.Sullins,P.E.Director Division of Water Quality e ' r January 23, 2008 To: Carrie Cranwill Anderson &Associates, Inc. 406 Gallimore Dairy Rd. Greensboro, NC 27409 From: Jo Casmer NC DENR—Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 (910)796-7245 Re: Apex Oil Wilmington Site Expansion Stormwate -PermltAppllcatlon " is kS lr !✓., y. a stm y' o- Zt �p�'`w .5. [r ..7 h,y� a hr , I'tIF1 sot 4�'' �_-s i u k R at.,� We are return ApexOil Company cfieck#062992 Inahe,amounYof$420 whlchwas Inclutled with the - application. Please note that the Stormwater Permit Fees ihcreased September=1", 2007Yto;$505. ? Y, '''. Please remit a check in the amount of$505 to the above attention and address as soon as possible so that we may proceed with processing of the application. • Nox hCarolma X tura//y North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington,NC 28405 Phone(910)796-7215 Customer Service Wilmington Regional Office Internet: www.ncwaterguaiitv.org Fax (910)350-2004 1.877.623.6748 �f A®, ❑USPS ❑UPS ®Attached ANDERSON &ASSOCIATES, INC. LETTER OF TRANSMITTAL PROFESSIONAL DESIGN SERVICES 406 GALLIMORE DAIRY ROAD.,GREENSBORO, NC 27409 Phone 336-931-0910 FAX 336-931-0990 DATE 1/22/08 JOB NO. 25652 TO NCDENR Wilmington Regional Office Rhonda Hall GJJ VV JJLG 127 Cardinal Drive Extension RE: Apex Oil Wilmington Site Expansion Wilmington NC 28405 Ii,.TE+ j) 0 Phone# 910-796-7215 We are sending you ®Attached [:]Under separate cover via the following items: ❑Shop drawings ❑Prints ®Plans ❑Samples ❑Specifications []Copy of Letter ❑Change Order ❑ Copies Date No. Description 2 1/8/08 25692 Application Form lori inal/1Co & $420 fee Ch#062942 1 10/5/07 25692 Soils Report 1 1/22/08 25692 Stormwater Calculations/Narrative 1 6-18-07 25692 Wetlands Corps Sheet 2 1/15/08 25692 Sand Filter Maintenance Agreement Lori inal/1co 2 1/14/08 25692 Sets of Site Review Drawings THESE ARE TRANSMITTED as checked below ❑For approval []Approved as submitted ❑Resubmit_copies for approval ®For your use ❑Approved as noted ❑Submit_copies for distribution ❑As requested ❑Returned for corrections ❑Return _corrected prints ®For review and comment ❑ ❑For Bids Due ❑Prints returned after loan to us Remarks Copy to file Signed r! I TERRA uest ENVIRONMENTAL CONSULTANTS,P.C. October 5, 2007 John Joyner Apex Oil Company, Inc. Post Office Box 3127 Wilmington, NC 28406 Re: Soil Lithology and Groundwater Elevation Letter Report Apex Oil Property— Proposed AST Locations 3329 River Road Wilmington, NC TerraQuest Project No. 07107 Dear Mr. Joyner: TerraQuest Environmental Consultants, P.C. (TerraQuest), has completed a soil-lithology and groundwater-depth assessment of the 3329 River Road property located in Wilmington, NC. The assessment was completed to comply with the building permit requirements of the City of Wilmington, NC. The subject property is a 10.23-acre tract with two aboveground storage tanks occupying a cleared 4.20-acre western portion of the tract. The portion of the subject property to be developed is the eastern 6-acre portion of the tract. The 6-acre portion currently has a surface cover of scrub pines, oaks, and grasses. The location of the subject property is depicted on the United States Geological Survey Topographic Map of Wilmington, NC in the attached Figure 1. TerraQuest personnel supervised the installation of three piezometers (PZ1 through PZ3) and three soil borings (61 through 133) to determine the depth to groundwater and soil lithologies across the subject property, respectively. Piezometer PZ1 was installed in the southwest corner of the subject property that is currently developed. Piezometer PZ2 was installed along the eastern property boundary of the subject property, and piezometer PZ3 was installed along the northern property boundary in the middle of the subject property near the tree line between the cleared and wooded portion of the subject property. Boring B1 was installed south of piezometer PZ3 along the southern property boundary of the subject property. Boring B2 was installed along the southern property boundary in the middle of the undeveloped portion of the subject property. Boring B3 was installed in the southeast corner of the subject property near the southern property boundary. The attached Figure 2 depicts the piezometer and soil boring locations. The piezometers and soil borings were installed by a licensed North Carolina Well Contractor (Carolina Drilling of Wilmington, NC, License # 2393) using an All-Terrain-Vehicle Hollow-Stem Auger drilling rig. The piezometers were constructed of 1-inch diameter Schedule 40 PVC. The native sand was used for a gravel pack since it flowed into the bore hole as soon as the augers were removed. Piezometers PZ1 and PZ2 were installed to a depth of fifteen feet below ground level (BGL). Piezometer PZ3 was installed to a depth of twelve feet BGL. After the piezometers were installed, depth-to-groundwater measurements were collected from each of the piezometers after the water levels were allowed to stabilize. The depth-to-groundwater measurements were collected using a SlopeTm electric cable water-level indicator. The average depth to water across the subject property was 11.37 feet BGL. The piezometer construction 209 East Main Street -Carrboro, North Carolina 27510 Telephone (919) 932-1590 -Facsimile (919) 932-1594 www.terraquestpc.com Page 2 John Joyner Apex Oil Company October 5, 2007 and depth-to-groundwater measurements are listed in the attached Table 1. The piezometer construction details are also provided in the well construction records attached as Appendix A. The predominate soil lithology encountered at the subject property up to a depth of fifteen feet BGL is a loose to very loose to moderately dense fine-grained Sand (SC) with varying colors of tan, orange, white, brown, grey, and black. Organics are present at the ground surface and within the first couple inches. These organics consist mainly of grasses, wood twigs, and leaves. This soil lithology is typical of a coastal river flood-plain environment. The New Hanover County Soil Survey produced by the US Department of Agriculture Soil Conservation Service maps the soils in the site vicinity as part of the Kureb-Baymeade-Rimini association. These excessively drained and well drained soils have a sand surface layer and a sand fine sandy loam to loamy fine sand subsoil layer. Soil lithologies encountered in the piezometers and soil borings are provided in the well construction records/soil boring logs attached as Appendix A. Infiltration rate is the measure of the rate at which soils are able to absorb rainfall or irrigation and is measured in inches per hour. Infiltration is affected by the ease of entry into the soil, storage capacity, and transmission rate through the soil. The soil texture and structure, vegetation types and cover, water content of the soil, soil temperature, and rainfall intensity also affect the infiltration rate and capacity. The sand lithology of the subject property has large spaces between the grains and allows water to enter easily and rapidly. Based upon a review of the soil types encountered during the installation of the piezometers and a review of New Hanover County Soil Survey, TerraQuest estimates the'ihfiltration rate at the subject property to be between 6 and 20 inches per hour. If you have any questions regarding the soil-lithology and groundwater depth assessment, please call me at (919) 932-1590. Thank you for allowing TerraQuest to provide our services. Sincerely, TERRAQUEST ENVIRONMENTAL CONSULTANTS, P.C. c INK _ � 1A9.1 s TQ GAP, Jonathan R. Grubbs, P.G. Vice President Attachments Table 1: Well Construction Information & Sept. 28, 2007 Groundwater Elevation Data Figure 1: Site Location Map Figure 2: Site Layout & Piezometer/Soil Boring Locations Map Appendix A: Well Construction Records & Soil Boring Logs Table 1 WELL CONSTRUCTION INFORMATION &SEPTEMBER 28, 2007 GROUNDWATER ELEVATION DATA 10/1/2007 Apex Oil 3329 River Road Pro ert , Wilmin ton, NC Depth to Date Water Water from Level Well.Casing Depth Screened Interval Bottom of Well Top of Casing Well ID Date Installed Measured feet BGS - x to y feet BGS feet BGS feet Comments PZ1 9/27/2007 9/28/2007 5 5-15 15 12.95 1-Inch Piezometer PZ2 9/28/2007 9/28/2007 10 10-15 15 . 13.00 1-Inch Piezometer PZ3 9/28/2007 9/28/2007 7 7-12 12 8.15 1-Inch Piezometer Notes: 1. "BGS"= below ground surface, Uest BORING LOG/MONITORING WELL INSTALLATION DETAIL ft�� rnntrantmr- Carol on D natp qtnrtprl- q/27/117 Boring Number: nrUl Mpthnd- natp F6no%hpd- q/27K) PZ1 nmi— rnrnp Rrirtnor I �gg-d hy- .1 Cruh 'a Blow OVM Depth E E Completion Litholog) Description Counts (ppm) Feet Organics&Grass Sand(SC) V. Very loose(0,25'-5')to loose(5'-1 5'), tan(0'-3')/dark brown(3'-8)[grey(8'-1 0'), mostly fine grained sand,moisture @-12 feet BGL. NA / 0 Boring Terminated @ 15 feet BGL. NA 5 X o b, NA % NA 10 xl�5 V NA -(Mv 15 Scale as shown; Hatch pattern denotes soil sample depth; Site: Solid denotes lab sample depth:Lithology hatch pattern legend is attached: New AST Locations Well Construction 3329 River Rd Wilmington , NC 28412 1"diameter Sch.40 PVC; .010"slotted screen Client: Sand:no.2 sand;Grout: poured portland;Bentonite:poured pellets Apex Oil Company, Inc. Manhole:flush 8"diameter steel if constructed N4 River Rd. NA-Not Applicable;BGL-Below Ground Level Wilmington, NC 28412 Project No.: 07107 Page 1 Itie� e BORING LOG/MONITORING WELL INSTALLATION DETAIL Boring Number: PZ2 ENVIAOXYFNA1l CUNSYIiANSS,P.C. o Blow OVIA Depth Completion tnolog Description m Counts (ppm) Feet rn Orangics&Grass ^X' . Sand(SC) °.1 X Very loose(0'-3')to loose(3'-6')to mod.dense(6'-7.5')to �� loose 7 ( ( )/:." ( .5'-10'), brown(0.25-3)/while 3.5-10)/black 10' -15', �,,/f mostly fine grained sand, moisture @-12 feet BGL. NA Boring Terminated @ 15 feet BGL. 9/ NA 5 ' /> " NA R NA 10 !n 4 'f r NA 15 Scale as shown; Hatch pattern denotes soil sample depth; Site: Solid denotes lab sample depth; Lithology hatch pattern legend is attached; New AST Locations Well Construction 3329 River Rd Wilmington , NC 28412 1"diameter Sch.40 PVC; .010"slotted screen Client: Sand: no.2 sand;Grout: poured portland; Bentonite:poured pellets Apex Oil Company, Inc. Manhole:flush 8"diameter steel if constructed 04 River Rd. NA-Not Applicable;BGL-Below Ground Level Wilmington, NC 28412 Project No.: 07107 Page 1 uest BORING LOG/MONITORING WELL INSTALLATION DETAIL � Cnntrart r- Carolina Drill np Inc. natp qfartpd- q/27/07 — Boring Number: nroll Mpthnd- Datp Fin4�hpd- 912ZI07 PZ3 rl,ill.r- rpnrnp Rririnpr I d by. .1 Gruhhs Blow Completion OVM Depth itholog� Description E Counts (ppm) Feet rn Urangics&Grass Sand(SC) x Very loose(02-75)to mod.dense(7.5'-15'),orange (0.25'-3')/dark grey(3'-6')/black(6'-1 0)/white(l U-1 5'), mostly fine grained sand, moisture @-7.5 feet BGL. NA V., Boring Terminated @ 12 feet BGL. NA 5 NA NA 10 NA 15 Scale as shown; Hatch pattern denotes soil sample depth; Site: Solid denotes lab sample depth; Lithology hatch pattern legend is attached; New AST Locations Well Construction 3329 River Rd Wilmington , INC 28412 1"diameter Sch.40 PVC; .010"slotted screen Client: Sand: no.2 sand; Grout:poured portland: Bentonite: poured pellets Apex Oil Company, Inc. Manhole:flush 8"diameter steel if constructed N4 River Rd. NA-Not Applicable; BGL-Below Ground Level Wilmington, INC 28412 Project No.: 07107 Page 1 uest BORING LOG Boring Number: O' B 1 EXVRoNvEmm COMSuLTAll .P.C. n Blow OVIA Depth m Counts (ppm) Feet Lithology Description to Organics, Grass and very loose(0'-3')to loose(3'-10'),orange(1'-6')/grey(6'-10'), mostly /,,9' .•_°r'� fine-grained sand,moisture @-6 feet BGL. fj!J jl°/ Boring Terminated @ 10 feet BGL. NA � / ` r / NX of e NA Fes!^ , ; it4u 5 f fFr Ya NA NA r!, 10 Scale as shown: Hatch pattern denotes soil sample depth; Site: Solid denotes lab sample depth; Lithology hatch pattern legend is attached; New AST Locations NA-Not Applicable; BGL-Below Groundlevel 3329 River Rd Wilmington , NC Client: p�ex Oil Company, Inc. 3314 River Rd. Wilmington, NC 28412 Project No.: 07107 Page 1 uesl BORING LOG Boring Number:. B2 ENVIRONMENTAL CONSULTANTS, C. o. Blow CIVM Depth Lithology Description m Counts (ppm) Feet rn Organics,Grass Sand(SC) very loose,black(1'-2.5')/dark brown (2.6-10'), mostly fine-grained sand,organics 1'-25,moisture @—8 feet BGL. Boring Terminated @ 10 feel BGL. i�/ - ` NA NA �ff/ ; � °/ if F 9° 2.1 NA NA f ' 10 Scale as shown: Hatch pattern denotes soil sample depth; Site: Solid denotes lab sample depth; Lithology hatch pattern legend is attached; New AST Locations NA-Not Applicable; BGL-Below Groundlevel 3329 River Rd Wilmington , NC Client: pex it Company, Inc. 3p14 River Rd. Wilmington, NC 28412 Project No.: 07107 Page 1 uest BORING LOG Boring Number: EnRONMEMTIL COMSOLTNMiS,Y.C. o. Blow OVM Depth Counts (ppm) Feet Lithology Description rn 5/' q; i Organics, Grass Sand(SC) V � very loose(0'-5')to loose(5'-10'),white(1'-5.5'&8.5-10')Idark brown (6'-7.5'), mostly fine-grained sand,organics 1'-25, moisture @-8.5 feet BGL. Vl,r e��/ Boring Terminated @ 10 feet BGL. NA !e it V �a oy NA /o 5 /e NA f� f° l NA 10 Scale as shown: Hatch pattern denotes soil sample depth: Site: Solid denotes lab sample depth; Lithology hatch pattern legend is attached; New AST Locations NA-Not Applicable; BGL-Below Groundlevel 3329 River Rd Wilmington , NC Client: pJ pe—Oil Cogpany, Inc. 3314 River Rd. Wilmington, NC 28412 Project No.: 07107 Page 1 Permit No.�.__-- __-- State of North Carolina Department of Environiinent and Natural Resourczs Division of Water Quality WATER QUALITY CLASSIFICATION REQUEST FORM This form clay be pflofocopied far use as an odginA !. PROJECT INFORMATION in order to determine whether a State Stormwatef Management Permlt willbe required fur d project,, in a non-coastal county, the classification of the closest downslope surface waters (the surface waters that any sheet flow or overflow from the project would flow toward) must be determined. Please complete Sectipns I and it below. DQW Staff will determine the receiving stream classification, complete Section III, and return the completed form to you. 1. Project Name: Apex Oil site Expansion County: New Hanover 2.. Contact Person: Carrie Cranwill Anderson & Associates 3. M3)ling Address:_ 406 Gallimore Dairy Road 4 Ci ty Greensboro Stag'' NC Zip 27409 Phone, No. 336-931-0910 5. Name of closest downstope s 1sf waters: Cape Fear River 6 n; Q. Signature at contact perso -/�CO�i, l�[� Date: 8/29/07 7. is a Sedimentation Erosion Contrpl Plan o� a CAMA Maior Permit required? MYES []NO (Erosion ontrol Requ red, CAMA Not Required) It. REQUIRED ITEMS An E.5"x 11"copy of the=appropriate-portion of a-tJ�,f..S rtuar met showing tha pi4jeCt; property boundaries, receiving stream, major roads or State Roads numbers, and nearest town or city must be attached. l Ili. CLASS IFICATIOlitREQtJEST{ro be-c npWedh)t-PagiOnal°J€Gceparsannet) N' J t. Name of surface waters. - C i9oE �rrz �vHt 2. River Basin: d,4 � A&tk Index No. 3. Ciassificatton(aa etAaWtAred bg Sc, 4. Proposed Classification, if applicable:--- pplicable:_ N A State StosmwaterManageme Permit required-? ES [} lO & Signature of Regional Offtce.personnel: __. _-- Date Q I 0'1 Cc Linda Lewis Engineer Building Inspector Central Fles Form SWU-411 Verslon 40.99, I A®, ❑USPS ❑UPS ®Attached ANDERSON a ASSOCIATES, INC. LETTER OF TRANSMITTAL PROFESSIONAL DESIGN SERVICES 406 GALLIMORE DAIRY ROAD.,GREENSBORO,NC 27409 Phone 336-931-0910 FAX 336-931-0990 DATE 8/29/07 JOB No. 25692 TO: NCDENR Wilmington Regional Office A11LN11UNRPisnde H311 RE:127 Cardinal Drive Extension Water Quality Classification Form Wilmington, NC 28405 Phone# 910-796-7215 We are sending you NAttached ❑Under separate cover via the following items: ❑Shop drawings ❑Prints NPIans ❑Samples ❑Specifications ❑Copy of Letter ❑Change Order ❑ Copies Date No. Description 1 25692 Application Form 1 25692 8.5 x 11 quad sheet 1 25692 aerial THESE ARE TRANSMITTED as checked below El For approval ❑Approved as submitted ❑Resubmit_copies for approval NFor your use ❑Approved as noted ❑Submit_copies for distribution ❑As requested ❑Returned for corrections ❑Return_corrected prints ❑For review and comment ❑ ❑For Bids Due ❑Prints returned after loan to us Remarks Copy to file Signed ` U.S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action Id. SAW-2007-1412-065 County: New Hanover U.S.G.S. Quad: Wilmington NOTIFICATION OF JURISDICTIONAL DETERMINATION Property Owner/Agent: Petroleum Fuel Terminal Companv Address: Attn: Property Tax Department 8235 Forsvth Blvd 400 Clayton,MO 63105-1623 Telephone No.: _ Property description: Size(acres) 10_23 Nearest Town Wilmington Nearest Waterway Cape Fear River Basin Cape Fear USGS HUC 03030005 Coordinates N 34.1870 W 77.9480 Location description The project area is located at 3314 River Road south of Shipyard Boulevard north south and east of existing fuel tanks, near the Cape Fear River, in Wilmin ton NC Indicate Which of the Following Apply: A. Preliminary Determination _ Based on preliminary information,there may be wetlands on the above described property. We strongly suggest you have this property inspected to determine the extent of Department of the Army(DA)jurisdiction. To be considered final, a jurisdictional determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process(Reference 33 CFR Part 331). B. Approved Determination _ There are Navigable Waters of the United States within the above described property subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations,this determination may be relied upon for a period not to exceed five years from the date of this notification. _ There are waters of the U.S. including wetlands on the above described property subject to the permit requirements of Section 404 of the Clean Water Act(CWA)(33 USC § 1344), Unless there is a change in the law or our published regulations,this determination may be relied upon for a period not to exceed five years from the date of this notification. _ We strongly suggest you have the wetlands on your property delineated. Due to the size of your property and/or our present workload,the Corps may not be able to accomplish this wetland delineation in a timely manner. For a more timely delineation,you may wish to obtain a consultant. To be considered final, any delineation must be verified by the Corps. _ The wetland on your property have been delineated and the delineation has been verified by the Corps. We strongly suggest you have this delineation surveyed. Upon completion,this survey should be reviewed and verified by the Corps. Once verified,this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which,provided there is no change in the law or our published regulations,may be relied upon for a period not to exceed five years. The waters of the U.S. including wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Corps Regulatory Official identified below on_. Unless there is a change in the law or our published regulations,this determination may be relied upon for a period not to exceed five years from the date of this notification. X There are no waters of the U.S.,to include wetlands, present on the above described project area which are subject to the permit requirements of Section 404 of the Clean Water Act(33 USC 1344). Unless there is a change in the law or our published regulations,this determination may be relied upon for a period not to exceed five years from the date of this notification. X The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA). You should contact the Division of Coastal Management in Wilmington,NC, at(910) 796-7215 to determine their requirements. Page 1 of 2 Action ID: gA14J aoo'4 - lyld • omS Placement of dredged or fill material within waters of the US and/or wetlands without a Department of the Army permit may constitute a violation of Section 301 of the Clean Water Act(33 USC § 1311). If you have any questions regarding this determination and/or the Corps regulatory program,please contact Jennifer Frye at 910-251-4923. C. Basis For Determination Please be aware that this property contains non-jurisdictional isolated wetlands Please contact the North Carolina Division of Water Quality at(919)733-1786 to discuss the State's regulations and requirements for these waters It was determined that these wetlands are not bordering neighboring or contiguous with anv Section 404 jurisdictional waters. This determination is based on information submitted by Walton Engineering on 1/18/2007 and a site visit by Jennifer Frye on 3/27/2007. D. Remarks E. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B. above) This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this determination,you may request an administrative appeal under Corps regulations at 33 CFR part 331. Enclosed you will find a Notification of Appeal Process(NAP)fact sheet and request for appeal (RFA)form. If you request to appeal this determination you must submit a completed RFA form to the South Atlantic Division, Division Office at the Following address: Mr. Michael F. Bell,Administrative Appeal Review Officer CESAD-ET-CO-R U.S. Army Corps of Engineers, South Atlantic Division 60 Forsyth Street, Room 9M 15 Atlanta, Georgia 30303-8801 In order for an RFA to be accepted by the Corps,the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you decide to submit an RFA form, it must be received at the above address by 6/18/2007. **It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence.** Corps Regulatory Official: . Date 04/18/2007 Expiration Date 04 88/2012 The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so,please complete the attached customer Satisfaction Survey or visit hLtp://www.saw.usace.army.miI/WETLANDS/index.htmI to complete the survey online. Copy furnished: Joanne Steenhuis,DENR-DWQ, Wilmington Regional Office, 127 Cardinal Drive Ext., Wilmington,NC 28405 Forrest Hair,Apex Oil Company,3314 River Road, Wilmington,NC 28412 Adrian Moon, Walton Engineering, PO Box 895, Burgaw,NC 28425 Page 2 of 2 II.\� Y t 1 d ' Applicant: Petroleum Fuel Terminal Co. File Number: SAW-2007-1412- Date: 4/18/2007 065 Attached is: See Section below INITIAL PROFFERED PERMIT (Standard Permit or Letter of A ermission) PROFFERED PERMIT (Standard Permit or Letter ofpermission) B PERMIT DENIAL C APPROVED JURISDICTIONAL DETERMINATION D PRELIMINARY JURISDICTIONAL DETERMINATION E YCW ng a es ,u-11:0*X Y$q.W 'x�! w3My:vu SECT ON he foflowrngtldentlfies your#nght an sophonskegardmgN an1a�mtmstrattve'anpeal of the above 5 fit d�.,a^icy3 1`�YAY';� �r+�':`uf� t`r�`ubl`..t<.n$'G7?sus ran".,�v T•��`kn�i ,'�"'uei'?'ii.� �i d '".'?sW-.'i�;: �dectsron �A�dittonalnnfozmarionpmay�befound,at�hftD//www-usace armu rrullmet/functtons/cw/cecwo/regcnr°t�xys= A'�(s�v�7'-s"ASw�'' ���'k'`'k.�`'3a x .as�,..�.vss,',qp`�Ft.,, Ay�f'"" F' 4R^Pq �w�"z',..,g ,e•�,1' A: INITIAL PROFFERED PERMIT. You may accept or object to the permit. • ACCEPT: If you received a Standard Permit,you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission(LOP),you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. • OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that the permit be modified accordingly. You must complete Section Il of this form and return the form to the district engineer. Your objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify the permit having determined that the permit should be issued as previously written. After evaluating your objections, the district engineer will send you a proffered permit for your reconsideration, as indicated in Section B below. B: PROFFERED PERMIT: You may accept or appeal the permit • ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP),you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. • APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein, you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or provide new information. • ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD. • APPEAL: If you disagree with the approved JD,you may appeal the approved JD under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps regarding the preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an approved JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new information for further consideration by the Corps to reevaluate the JD. 'ue7 aC23"-a "ks tv, r T ,. .,� h .i...:a.ce ^x Aart svT '4�pl.iei cnr�a+��y,�T tr `t"er n n' I 'a. YaM .u,yM �.yg,ryY''h�IH.a.�� rrs i5 CIA ^ �f r C)1r�T�7I; ,RE,» 'ES;FFQR�''.a_P,E�Lor„OB7EC,TI®1`7SIT�0"ANnTNITIAIROFFEREDPERIVZ'I..T _ u rlrr.,, REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an initial proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons or objections are addressed in the administrative record.) ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record. However, you may provide additional information to clarify the location of information that is already in the administrative record. `P�OIN' aOF NT��@Tt ,OR}'t r STZOI�IS ®R INF,OR'MA ON" u " ' NI-Ma If you have questions regarding this decision If you only have questions regarding the appeal process you and/or the appeal process you may contact: may also contact: USAGE, WILMINGTON DISTRICT Mr. Michael F. Bell,Administrative Appeal Review Officer PO BOX 1890 CESAD-ET-CO-R WILMINGTON, NC 28402 U.S.Army Corps of Engineers, South Atlantic Division 60 Forsyth Street, Room 9M15 Atlanta, Georgia 30303-8801 RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15 day notice of any site investigation, and will have the opportunity to participate in all site investigations. Date: Telephone number: Signature of appellant or agent. DIVISION ENGINEER: Commander U.S. Army Engineer Division, South Atlantic 60 Forsyth Street, Room 9M15 Atlanta, Georgia 30303-3490 1 INVISTA S.a.i.I. BOOK 5071, PAGE 92 ONING HM — HEAVY INDUSTRIAL USE: TANK FARM DIKE AREA #1 100 YEAR 24 HR STORM - - VOLUME .= ELEV. 35. 76 UMITS - - , _ - - F DISTURBANCE- S857 _ - 97-97 `` a2 - -- — 43� bEGETATIVE . I I p }1 Ile I 1 / tyll t ♦ � � � l I�/ ( o \ l��/� r % � -- mil _ -- - - -�4— — .' i I PROPOSED TANKI I ( / FFE: 37.0 11 i 1 I \ P POSED TANK ( 1 17,203.3 SF III I I'�� \ FF : 3y.0 /Ili 1 17,20313 SF ti° I I v . 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