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HomeMy WebLinkAboutSW8120408_HISTORICAL FILE_20120604STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW_$l�il�j'&YJ DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD Central Files: APS SWP 06/04/12 Permit Number SW8120408 Permit Tracking Slip Program Category Status Project Type State SW Active New Project Permit Type Version Permit Classification State Stormwater 1.00 Individual Primary Reviewer kelly.johnson Coastal SW Rule Coastal Stormwater - 2008 Permitted Flow Permit Contact Affiliation Facility Facility Name Major/Minor Region GOGAS #20 Southport Minor Wilmington Location Address 4456 Long Beach Rd Southport INC 28461 Owner County Brunswick Facility Contact Affiliation Owner Name Owner Type Gogas Corporation Non -Government Owner Affiliation Jasper Willetts 3301 Burnt Mill Or Dates/Events Wilmington NC 28403 Scheduled Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 06/04/12 04/19/12 06/04/12 06/04/12 06/04/20 Regulated Activities RequestedlReceived Events State Stormwater - HD - Infiltration " Deed restriction requested Deed restriction received Additional information requested 05/23/12 Additional information received 05/23/12 Additional information requested 05/31/12 Additional information received 06/04/12 Outfall NULL waterbody Name Stream Index Number Current Class Subbasin 1127 Floral Parkway Suite 400 Wilmington, NC 28403 (910)343-9653 (910) 343-9604 Fax John S. Tunstall, P.E. May 31, 2012 Norris & Tunstall Consulting Engineers, P.C. Ms. Kelly Johnson NC DENR Division of Water Quality Surface Water Protection 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re: GoGas #20 SW8 120408 Brunswick County Request for Additional Information Response NT Project No. 11106 Dear Ms. Johnson: 1429 Ash -Little River Road Ash, NC 28420 (910) 287-5900 (910) 287-5902 Fax J. Phillip Norris, P.E. We are responding to your letter of May 31, 2012 regarding the subject project as follows: 1. Per the attached guidance from Linda Lewis we are only required to demonstrate that the 10 year 24 hour storm with infiltrate without overtopping at half the reported rate. Our calculations demonstrate that will work here. 2. There are no wetlands on the site. This has been indicated on the plans. 3. It was our understanding that the existing material from the existing pond bottom to the SHWT was to be removed and replaced with clean sand. That is why our detail on Sheet C4 shows 2 feet of clean sand between elevation 12.0 and 10.0. The existing pond bottom is at 12.0, the SHWT is at 10.0. 4. The SHWT is at 10.0. Please fix that on the supplement. We will email you the plan Sheet C2 with the wetland note and put 2 copies in the mail. Please contact us if you have any additional questions or comments. Thank you for your assistance on this project. Sincerely, NORRIS & TUNSTALL CONSULTING ENGINEERS P.C. PAlporris,.E. JPN/neh 11106 05-31-12-s-sw-resp-ltr cc: Mr. Kit Austin / GoGas Corporation Mr. Reggie Stanley / GoGas Corporation JUN 0 4 2012 BY NCBELS License C-3641 Nancy Howell From: Jody Bland Ubland@ritengineers_com] Sent: Thursday, May 31. 2012 12:00 PM To: Phil Norris; 'Amy Norris'; 'John Tunstall' Subject: FW: Infiltration Basin Question Phil, Please see the correspondence below between Linda Lewis and myself regarding the option to infiltrate the 10yr storm @ Y2 of the reported rate. She explicitly talks about option 4 does not refer to active volume. We have already received several other permits utilizing this method. These were located in NCDENR's and the City of Wilmington's jurisdiction. "PLEASE BE AWARE THAT MY EMAILADDRESS HAS CHANGED TO 1BLANDC�_N NGINEERS.COM. SHORTLY WE WILL DISCONTINUE USE OF OUR NMNG EMAIL ADDRESSES. PLEASE UPDATE YOUR CONTACT LISTING. Thanks, Jody Bland Norris & Tunstall Consulting Engineers, P.C. Wilmington QfY'iCC - 910-343-9653 Brunswick Office - gio-287-5900 Mobile - 910-512-8148 It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release_ It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Morris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers. P.C. and Norris. Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. Confidentiality Notice This message is intended exclusively for the individual or entity to which it is addressed. This communication may contain information that is proprietary, privileged, confidential or otherwise legally exempt from disclosure, If you are not the .named addressee, you are not authorized to read, print, retain, copy or disseminate this message or any part of it. If you have received this message in error, please notify the sender immediately either by phone (910-287-5900) or reply to this e-mail and delete all copies of this message. From: Lewis,bnda [mailto:linda.lewis@ncdenr.govj � Sent: Monday, August 01, 2011 5:45 PM To: 3ody Bland Subject: RE: Infiltration Basin Question - Carquest ILM JIUN 0 4 2012 Jody- BY: -Yati will,proU6bl} be able to set it at the lower elevation. Does the.22000 0u calculate take the volume inf lli atetf during"(he 24 hour storm event into account? The foufth option -,only requires. you demons -hate that -the 1.0'year'24°hour stornnyolume•can:--be irifiltrated in•the-.system'without,overtopping; } _ -, � ,. . � - . � � ._ _ ' r� .i 7! "� � , ,� f� � � � � ,I '' i _. �: _ �. Option #4, starts with a minimum system design that can accommodate either the pre/post or the 1.5", whichever is applicable, based on the applicable rule and the classification of the receiving stream. From there you go on to demonstrate that the system can also accommodate the 10 year 24 hour volume without overtopping. With option #4 only, you get to route the storm and include the volume that infiltrates during the 24 hour storrri_ 'event (at % the infiltration rate), and subtract that volume from the 10 year 24 hour total volume. This id probal,ly best demonstrated via the HydroCAD anatysis! I would use the equation in 16.3.6 to determine the amount of area needed to infiltrate those volumes in 24 hours, i.e_, T = 1 day. If you can't provide the calculated area, then add the leftover uninfiltrated volume to your minimum volume to store, i.e., pre/post difference or 1.5", and provide additional storage volume in the system, and set your weir at the elevation where you meet the new volume required. Linda Lewis NC Division of Water Quality 127 Cardinal Drive Ext. Wilmington, NC 28405 910-796-7215 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Jody Bland fmaiIto: iblandCalntengine-ers..r�m] Sent: Monday, August 01, 2011 3:SS PM To: Lewis,Unda; 'Phil Norris' Subject: Infiltration Basin Question - Carquest ILM "- Good Afternoon Linda, I have a question regarding the ability to waive the bypass and LS/VFS requirements per section 16.3.9.4 We have project that has a natural low area onsite and we are planning to construct a berm around the area to create a natural infiltration area. We have received our soils report and infiltration rates are good within the proposed basin (8 in/hr). Using the simple method I find the 10yr storm volume = 22,000cf; to provide active storage for this volume 1 must set the top of my outlet structure at 52.60'. Running this drainage model in HydroCad with Y2 of the specified infiltration rate (4 in/hr), I get a peak of 51.85' +/-. Based on the above information is it allowable to set the outlet structure @ the peak elevation or must I set it at the total active storage volume elevation of 52.60'? I appreciate your help. *PLEASE BE AWARE THAT MY EMAIL ADDRESS HAS CHANGED TO „IBL DD@NTENG,INEERS.COM, SHORTLY WE WILL DISCONTINUE USE OF OUR NKTENG EMAIL ADDRESSES- PLEASE UPDATE YOUR CONTACT LISTING. Thanks, Jody Bland Norris & Tunstall Consulting Engineers, P.C. Wilmington Office - 910-343-9653 JUN 0 4 2012 2 BY: / S0S I D: 1106402 f Date Filed: 1I312011 1:55:00 PM CO-479 (39) /Business..Corporation North Carolina Ann Elaine F. Marshall 10-2H$North Carolina Secretary' of State This report maybe flied online at the Secretary of State websitel: wwm.tetnc.c CA201103900559 V ! Name of Business Corporation: GOGAS CORPORATION Fiscal Year Ending: 09 30 10 State of Incorporation: NC Month / Day / Yew Secretary of State ID Number: 1106402 [] I hereby certly that the information requested below (required by NCGS 55-16-22) has not changed since the most recently filed annual report and is therefore Complete, Nature of Business: SALES Registered Agent: KERMIT E. AUSTIN, JR Registered Office Mailing Address: 3301 BURNT MILL DRIVE County: City: State: ZIP Code: NEW HANOVER, WILMINGTON, NC 28403 Registered Oflice Street Address: 3301 BURNT MILL DRIVE County: City: State: ZIP Code: NEW HANOVER, WILMINGTON, NC 28403 Signature of New Registered Agent: ISFpnsture eana8wtsa consent to the &PWntmentl Principal Office Telephone Number: 910-762-4700 Principal Office Mailing Address: 3301 BURNT MILL DRIVE City: State: ZIP Code: WILMINGTON, NC 28403 Principal Office Street Address: 3301 BURNT MILL DRIVE City: State: ZIP Code: WILMINGTON, NC 28403 1me. Title. and Business Address of Principal Officers: Name: Title: KERMIT E. AUSTIN, JR. PRESIDENT Address: PO BOX 4087 WILMINGTON, NC 28406 City: State: ZIP_ Name: Title: Address: Ct : State: ZIP: Name: Title: Address: State: ZIP! Certification of annual rs o (Mustb ompleted by all Business Corporations). r/ � p�A4st�[(F-orm mu" tx 4y an officers oaporstlon) Data K ily &-r r-) 1[ti PRESIDENT 969511 00.18.M GOGAS Corporation etiY :.- t GAS7z�.ovidln7..fuel since 9947! ,%Y April 12, 2012 North Carolina Department of Energy and Natural Resources To whom it may concern: I do hereby approve and certify Jasper Willetts to sign and execute any necessary documents pertaining to the State Stormwater Permit Application associated with the GOGAS 20 project located at 4456 Long Beach Road, Southport, NC. Should you have any questions with regards to this matter, please do not hesitate to give me a call. Sincerely, <c J,4;" K. E. Austin, Jr. President/CEO GOGAS Corporation fa FIEGEIVE' . APR 16 2012 SY: 3301 Burnt Mill Dave ieieonone 910-762--700 email: intop;gogas.net Wilm;rciton. NC 28s03 fax 910-762-0075 %"'w"v.goaas.rei Completeness Review Checklist Project Name: �� �f Q Received Date: Project Location:Qvn�i���c1L% t}[ktL/,Z Accepted Date: \` Rule(s) 008 Coastal F-11995 Coastal Phase II (WiRO) Universal 01988 Coastal Type of Permit• Ne Jr Mod or PR Existing Permit # (Mod or PR): PE Cert on File? Density: HD or LID Type: C merci I or Residential �NCG: %: g, (3'o OK?) Stream Class: 6r-.�5��1t>L SA Map OOffsite to SW8 Subdivided?: Subdivision or S nele Lot I—IORW Man nExemot Paperwork Emailed Engineer on: laupplement(s) (1 original per BMP) BMP Type(s): InQ,\ 1-Jul.,iN �d!�Xtnnl &M with correct/original signatures (1 original per BMP except LS/VFS and swaies) Application with correct/original signatures -1 Corp or LLC: Sig. Auth. per SoS or letter Note to Reviewer: [�05 (within 6mo) Soils Report with SHWT Ctet,X4c'N(�ti � —tralculations (signed/sealed) � 4 - q 6 As Car r� oro�}7cx� ' u.�.'71N �No obvious errors Density includes common areas, etc �beed Restrictions, if subdivided: _� _ Sttt-'p OV 7 El5igned &Notarized Correct Template (Comm/Res & HD/LD) or De ACovenants & Rest. Plans -.... �pIL... ►(gyp +MG�}�n Onk`S 22 Sets El Details (roads, cul-de-sacs, curbs, sidewalks, BMPs, Buildings, etc) Cia#oor OV MAR^) Grading Wetlands: Delineated or No Wetlands Vicinity Map Layout (proposed BUA dimensions) Legend �DA Maps 1-1 Project Boundaries Infiltration Wet Pond Offsite oils Report Soils Report �PE Cert for Master Lot #: SHWT: SHWT: Deed Rest for Master Lot # Matches Master Bottom: 11PP: BUA Permitted (Master): sf Additional Information: Permitted Proposed: Proposed: Proposed: BUA (sf) DA (sf) PP (el) SHWT (el) Depth (ft) SA (sf) Johnson, Kelly From: .Johnson, Kelly Sent: Wednesday, May 23, 2012 8.00 AM To: 'Nancy Howell' Cc: Lewis, Vincent Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Phil & Nancy, Has Vince gone out there again since his 4/19/12 visit? On that report he said that there was an old pond that would be backfilled with clean sand and that the bottom of the infiltration basin would be at the top of the new clean sand. What will be the change from that scenario? KJ From: Nancy Howell[mailto:nhowel[@ntengineers.com] Sent: Tuesday, May 22, 2012 5:41 PM To: Johnson, Kelly Subject: GoGas No.20 (NT #11106) Ms. Johnson, We met on site with Mr. Vince Lewis and he recommend a slight change to the plans for the above subject project. Do you want us to revise the plans showing this slight change and submit them to you? Phil Please note my new address is pnorris@ntengineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. Johnson, Kell From: Johnson, Kelly Sent: Wednesday, April 18, 2012 3:20 PM To: 'Phil Norris' Cc: Lewis, Vincent Subject: RE: GoGas#20, Southport Phil, We need Vince's site visit report before we can accept it and get it logged in. He has been out of the office since Friday. Normally, he leaves a note about when he will be back. But, I don't see one on the calendar. Let's give it a couple days and see if he can work it in. Kelly From: Phil Norris[mailto:pnorris(&nten4ineers.com]. Sent: Wednesday, April 18, 2012 2:33 PM To: Johnson, Kelly Subject: RE: GoGas#20, Southport Kelly, This is to a new permit for GoGas. Vince has not been to the site yet. Phil Please note my new address is pnorrisj2n ten gineers. com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. From: Johnson, Kelly [mailto:kell , ."ohnson ncdenr. ov] Sent: Wednesday, April 18, 2012 10:53 AM To: Phil Norris Subject: GoGas#20, Southport Phil, We received this permit and I have a couple of questions for you: 1.) Is this a new permit or a mod? That part was inadvertently left blank on the application. 2.) Soils: Has Vince Lewis been to this site yet? He isn't here, and I don't see his soils site visit report on file. Thanks, KJ *** My email has changed to kellv.P.iohnson@ncdenr.eov K.eLLW OkI 1AS0In. Kelly Johnson Environmental Engineer Division of Water Quality 5tormwater Permitting 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Office: 910.796.7331 Fax: 910.350.2004 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2411/4944 - Release Date: 04/18/12 K `. sosm:llo6aoz Date Filed: 7/13/2009 9:54:00 AM Elaine F. Marshall North Carolina Seeretarf• of State C200918800279 ARTICLES OF INCORPORATION OF GOGAS CoRPoRATioN 1, the undersigned natural person of the age of eighteen years or more, do hereby organize a business corporation under the laws of the State of North Carolina, as contained in Chapter 55 of the General Statutes of North Carolina, entitled "North Carolina Business Corporation Act", and all amendments thereto, and to that end do hereby set forth the following: I. NAME The name of the corporation is GOGAS Corporation. U. PURPOSE The purpose for which the corporation is organized is to engage in any lawful act or activity for which the corporation may be organized under the North Carolina Business Corporation Act. III. CAPITAL STOCK The total number of shares the corporation shall have authority to issue is One Hundred Thousand (100,000). These shares shall be all of one class, designated as common stock, with no par value. IV. REGISTERED OFFICE AND AGENT The street address and county of the initial registered office of the corporation are 3301 Burnt Mill Drive, Wilmington, New Hanover County, North Carolina 28403 and the name of the initial registered agent at such address is K.E. Austin, Jr. The mailing address of the initial registered office is 3301 Burnt Mill Drive, Wilmington, New Hanover County, North Carolina 28403. V. PRINCIPAL OFFICE The street address and county of the principal office of the corporation is 3301 Burnt Mill Drive, Wilmington, New Hanover County, North Carolina 28403. VI. NAME AND ADDRESS OF INCORPORATOR The name and street address of the incorporator are: "RE G E R V E . Name Street Address All 1 5 2012 K.E. Austin, Jr. 3301 Burnt Mill Drive BY: Wilmington, NC 28403 90726 VII. LIMITATION OF LIABILITY No director of the corporation shall have personal liability arising out of an action whether by or in the right of the corporation or otherwise for monetary damages for breach of any duty as a director, provided, however, that the foregoing shall not limit or eliminate the personal liability of a director with respect to (i) acts or omissions that such director at the time of such breach knew or believed were clearly in conflict with the best interests of the corporation, (ii) any liability under Section 55-8-33 of the North Carolina General Statutes or any successor provision, (iii) any transaction from which such director derived an improper personal benefit, or (iv) acts or omissions occurring prior to the date of the effectiveness of this Article VII. As used in this Article VII, the term "improper personal benefit" does not include a director's reasonable compensation or other reasonable incidental benefit for or on account of his or her services as a director, officer, employee, independent contractor, attorney, or consultant of the corporation. Furthermore, notwithstanding the foregoing provision, in the event that Section 55-2-02 or any other provision of the North Carolina General Statutes is amended or enacted to permit further limitation or elimination of the personal liability of directors of corporations, the personal liability of the corporation's directors shall be limited or eliminated to the fullest extent permitted by the applicable law. This Article VII shall not affect any provision permitted under the North Carolina General Statutes in the articles of incorporation, bylaws or contract or resolution of the corporation indemnifying or agreeing to indemnify a director against personal liability. Any repeal or modification of this Article VII shall not adversely affect any limitation hereunder on the personal liability of the director with respect to acts or omissions occurring prior to such repeal or modification. ARTICLE VIU. EFFECTIVE DATE These articles of incorporation shall be effective upon filing. IN TESTIMONY WHEREOF, I have hereunto set my hand and seal to these Articles of Incorporation of GOGAS Corporation This the �day of 75u L 2009. (SEAL) K.E. Austin, Jr., Incorporat 9M6 Johnson, Kell From: Phil Norris [pnorris@ntengineers.com) Sent: Monday, June 04, 2012 2:16 PM To: Johnson, Kelly Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Attachments: 11106 06-04-12 s-sw calcs.pdf Kelly, We have attached additional calculations that documents that the system will work. The wetlands note is on Sheet C2. Thanks, Phil Please note my new address is pnorrisOntengineers.com J. Phillip Norris, P.E. !Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. From: Johnson, Kelly[mailto:kelly.p.johnson@ncdenr.gov] �OiD %1,46 -tk2, Sent: Monday, June 04, 2012 8:53 AM To: Phil Norris Subject: FW: GoGas No.20 (NT #11106), SW8 120408 Phil, 1.) 10yr24hr Volume: I asked Linda about her email, and she told me that her intent was that the minimum size of the infiltration system would be for the 1.5" volume or the pre/post"difference (call that volume X). Then, in order to waive the VFS, offline bypass and not have to increase the volume of the system, the applicant also calculates the 10 yr 24 hr volume via the Simple method (call that volume Y) and then calculates the volume that infiltrates through the bottom during that 24 hours at % the reported infiltration rate (call that volume Z). If volume Y can infiltrate within the system designed for volume X at % the reported infiltration rate within 24 hours, without overtopping (discharging), or if the leftover volume (Y minus Z) after 24 hours is less than X, then it's OK. The system doesn't have to be sized to "contain" the 10 yr 24 hour storm. If the leftover volume (Y minus Z) is larger than X, then the minimum volume of the system has to be increased from X to (Y minus Z). I see the stage and volume 10yr24hr information from CAD, but I don't see the 10yr24hr storm volume per Simple Method following this procedure? I think that the design will work from my talcs, it is just a matter of documentation for the file because the 10r24hr volume (per the Simple Method) goes into the permit text. 2.j Wetlands: Where is the wetlands note? I have to run to a meeting so I haven't gone back through this thoroughly. 3.) Bottom of Basin: OK. I talked to Vince, and what you are proposing is in line with what he wanted. I just didn't understand that from his site visit report. 4.) SHWT: OK KJ From: Phil Norris [mailto: norris nten ineers.com] Sent: Thursday, May 31, 2012 2:57 PM To: Johnson, Kelly Subject: RE: GoGas No.20 (NT #11106), 5W8 120408 Kelly, Attached is our response. The original is in the mail to your attention. Phil Please note my new address is pnorris@ntengineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C, and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. From: Johnson, Kelly [mailto:kelly p.iohnson@ncdenr.govI Sent: Thursday, May 31, 2012 9:38 AM To: Phil Norris Subject: FW: GoGas No.20 (NT #11106), SW8 120408 Phil, The attached letter will be mailed today. This is pretty simple. I have drafted the permit and can turn it around fairly quickly once I hear back from you. IX From: Johnson, Kelly Sent: Wednesday, May 23, 2012 12:31 PM To: 'Phil Norris' Cc: Scott, Georgette Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Phil, I try to avoid these types of project delays by not accepting projects that are incomplete. When all of the necessary documents are submitted, I trust that the package is believed to be complete. If I had known that there was a discrepancy between what was designed and what Vince found in the field I would have returned the package. Please see attached. KJ From: Phil Norris(mailto:pnorris(aIntengineers.com] Sent: Wednesday, May 23, 2012 11:19 AM To: Johnson, Kelly Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Kelly, No, Vince has not been to the site since the April 19th but the plan that you have does not reflect his comments and we wanted to know if you would like the revised plan that reflects his comments. Please let us know. Thank you, Phil Please note my new address is pnorris@ntenaineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. From: Johnson, Kelly [mailto:kelly_p.iohnson@ncdenr.gov] Sent: Wednesday, May 23, 2012 8:00 AM To: Nancy Howell Cc: Lewis, Vincent Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Phil & Nancy, Has Vince gone out there again since his 4/19/12 visit? On that report he said that there was an old pond that would be backfilled with clean sand and that the bottom of the infiltration basin would be at the top of the new clean sand. What will be the change from that scenario? ICI From: Nancy Howell[maiIto:nhowell@ntengineers.com] Sent: Tuesday, May 22, 2012 5:41 PM To: Johnson, Kelly Subject: GoGas No.20 (NT #11106) Ms. Johnson, We met on site with Mr. Vince Lewis and he recommend a slight change to the plans for the above subject project. Do you want us to revise the plans showing this slight change and submit them to you? Phil Please note my new address is pnorris@ntenaineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900(phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2171 / Virus Database: 2425/5017 - Release Date: 05/23/12 No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2171 / Virus Database: 2425/5036 - Release Date: 05/31/12 No virus found in this message. Checked by AVG - www.avp,.com Version: 2012.0.2178 / Virus Database: 2425/5044 - Release Date: 06/04/12 1127 Floral Parkway Suite 400 Wilmington, NC 28403 (910) 343-9653 (910) 343-9604 Fax John S. Tunstall, P.E. May 31, 2012 Norris & Tunstall Consulting Engineers, P.C. Ms. Kelly Johnson NC DENR Division of Water Quality Surface Water Protection 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re: GoGas #20 SW8 12D408 Brunswick County Request for Additional Information Response NT Project No. 11106 Dear Ms. Johnson: 1429 Ash -little River Road Ash, NC 28420 (910) 287-5900 (910) 287-5902 Fax J. Phillip Norris, PE. We are responding to your letter of May 31, 2012 regarding the subject project as follows: 1. Per the attached guidance from Linda Lewis we are only required to demonstrate that the 10 year 24 hour storm with infiltrate without overtopping at half the reported rate_ Our calculations demonstrate that will work here. 2. There are no wetlands on the site. This has been indicated on the plans. 3. It was our understanding that the existing material from the existing pond bottom to the SHWT was to be removed and replaced with clean sand. That is why our detail on Sheet C4 shows 2 feet of clean sand between elevation 12.0 and 10.0. The existing pond bottom is at 12.0, the SHWT is at 10.0. 4. The SHWT is at 10.0. Please fix that on the supplement. We will email you the plan Sheet C2 with the wetland note and put 2 copies in the mail. Please contact us if you have any additional questions or comments. Thank you for your assistance on this project. Sincerely, NORRIS & TUNSTALL CONSULTING ENGINEERS P.C. JPhi orris, .E. JPN/neh a 1108 05-31-12-a-ew-res�a cc: Mr. Kit Austin / GoGas Corporation Mr. Reggie Stanley / GoGas Corporation NCBEI.S Licease C-3641 Nancy Howell From: Jody Bland fibland@Intengineers.com] Sent: Thursday, May 31. 2012 12:00 PM To: Phil Norris: 'Amy Norris': 'John Tunstair Subject: FW: Infiltration Basin Question Phil, Please see the correspondence below between Linda Lewis and myself regarding the option to infiltrate the 10yr storm @ 36 of the reported rate. She explicitly talks about option 4 does not refer to active volume. We have already received several other permits utilizing this method. These were located in NCDENR's and the City of Wilmington's jurisdiction. "PLEASE BE AWARE THAT MY EMAIL ADDRESS HAS CHANGED TO JULANDOWUNGINEEMSOM. SHORTLYWE WILL DISCONTINUE USE OF OUR N1KTENG EMAIL ADDRESSES. PLEASE UPDATE YOUR CONTACT LISTING. Thanks, Jody Bland Norris & Tunstall Consulting Engineers, P.C. Wilmington Office- 910-343-9653 Brunswick Office - gio-Z 7-5goo Mobile - 910-511-8148 It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers. Ina that this electronic information provides design information current as of the date of its release. it shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers. P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers. P.G. and Norris. Kuske & Tunstall Consulting Engineers, Inc. In the preparation of such data. Confldentialtty Notice This message is intended exclusively for the individual or entity to which it is addressed. This c ommmunicabon may contain information that is proprietary, privileged, confidential or otherwise legally exempt from disclosure H you are not the named addressee, you are not authorized to read, print, retain, copy or disseminate this message or any part of it If you have received this message in error, please notify the sender immediately either by phone (910-287-5900) or reply to this e-mail and delete all copies of this message. From., Lewis,Unda [maiito:llnda.kwis@rtcdenr.gov] Sent, Monday, August 01, 2011 5,45 PM To: Jody Bland Subject: RE: Infiltration Basin Question - Carquest ILM Jody - You will probably be able to set it at the lower elevation. Do infiltrated dunng the 24 hour storm event into account? deinaristratia-tltial'lfie;�0 year`? `hi}0r slrarrri.vvluirie cah-'be !tisrfeportt�d;estimsled-ir 411raiion-rate.- v the 22000 you calculate take the volume The,four#ti optian^onlyrrequires!,you.tb . _ rated in, the, system wiIho, uI.ove_rtopping,.at,'�,6f Option #4, starts with a minimum system design that can accommodate either the pre/post or the 1.5', whichever is applicable, based on the applicable rule and the classification of the receiving stream. From there you go on to demonstrate that the system can also accommodate the 10 year 24 hour volume without overtopping. With option #4 only, you get to route the storm and -include the volume that infiltrates during the 24'hour storm event (at %2 the infiltration rate), and subtract that volume from the 10 year 24, hour -total volume. This is probably best demonstrated via the HydroCAD_analysis. I would use the equation In 16.3.6 to determine the amount of area needed to infiltrate those volumes in 24 hours, i.e., T = 1 day. If you can't provide the calculated area, then add the leftover uninfiltrated volume to your minimum volume to store, i.e., pre/post difference or 1.5", and provide additional storage volume in the system, and set your weir at the elevation where you meet the new volume required. Linda Lewis NC Division of Water Quality 127 Cardinal Drive Ext. Wilmington, NC Z8405 910-796-7215 E-mail correspondence to and franc this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties_ From: Jody Bland [mailto:ibland@nterAtn�xs.cam_ 1 Sent: Monday, August 01, 201L3:55 PM To: Lewis,Unda; 'Phil Norris' Subject: Infiltration Basin Question - Carquest ILM Good Afternoon Linda, I have a question regarding the ability to waive the bypass and LSNFS requirements per section 16.3.9.4 We have project that has a natural low area onsite and we are planning to construct a berm around the area to create a natural Infiltration area. We have received our suits report and Infiltration rates are good within the proposed basin (8 in/hr). Using the simple method i find the 10yr storm volume = 22,000cf; to provide active storage for this volume I must set the top of my outlet structure at 52.60'. Running this drainage model In HydroCad with % of the specified infiltration rate (4 in/hr), I get a peak of 51.85' +/-. Based on the above information is it allowable to set the outlet structure @ the peak elevation or must 1 set it at the total active storage volume elevation of 52.60'? I appreciate your help. "PLEASE BE AWARE THAT MY EMAIL. ADDRESS HAS CHANGED TO BI LAND@NTENGINEERS.COM. SHORTLY WE WILL DISCONTINUE USE OF OUR NKTENG EMAIL ADDRESSES. PLEASE UPDATE YOUR CONTACT LISTING. Thanks, Jody Bland Norris & Tunstall Consulting Engineers, P.C. Wilmington Office - 910-343-9653 SiTEwr r— �� I I I I _ AllIE I ,IF ' I° IE �I I E e m.� LLW IE a IIE E, d SEEMA7 MUMEoUow n.wm, o s cis r rc; n V.F364 r1 } III ism rs. t Bpi AI�B��9� mow „ r M V M 1 Y1.6 oA o I o , EmIMI ou IT mom` I! �01 Pro" � 4 F w*a 00 s all LEGEND i' SCALE_ 1''Y 24 n I C2 Johnson, Kelly From: Phil Norris (pnorris@ntengineers.coml Sent: Thursday, May 31, 2012 2:57 PM To: Johnson, Kelly Subject: RE: GoGas No.20 (NT #11106). SW8 120408 Attachments: 11106 05-31-12 s-sw rwsp-Itr.pdf Kelly, Attached is our response. The original is in the mail to your attention. Phil Please note my new address is pnorris@ntengineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. From: Johnson, Kelly [mailto:kelly.p.johnson@ncdenr.gov] Sent: Thursday, May 31, 2012 9:38 AM To: Phil Norris Subject: FW: GoGas No.20 (NT #11106), SW8 120408 Phil, The attached letter will be mailed today. This is pretty simple. I have drafted the permit and can turn it around fairly quickly once I hear back from you. KJ From: Johnson, Kelly Sent: Wednesday, May 23, 2012 12:31 PM To: 'Phil Norris' Cc: Scott, Georgette Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Phil, I try to avoid these types of project delays by not accepting projects that are incomplete. When all of the necessary documents are submitted, I trust that the package is believed to be complete. If I had known that there was a discrepancy between what was designed and what Vince found in the field I would have returned the package. Please see attached. N From: Phil Norris [mailto:pnorris(antengineers.com] Sent: Wednesday, May 23, 2012 11:19 AM To: Johnson, Kelly Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Kelly, No, Vince has not been to the site since the April 191h but the plan that you have does not reflect his comments and we wanted to know if you would like the revised plan that reflects his comments. Please let us know. Thank you, Phil Please note my new address is pnorris@ntengineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. From: Johnson, Kelly [mailto:keliy_p.tohnson@ncdenr.govI Sent: Wednesday, May 23, 2012 8:00 AM To: Nancy Howell Cc: Lewis, Vincent Subject: RE: GoGas No.20 (NT #11106), SW8 120408 Phil & Nancy, Has Vince gone out there again since his 4/19/12 visit? On that report he said that there was an old pond that would be backfilled with clean sand and that the bottom of the infiltration basin would be at the top of the new clean sand. What will be the change from that scenario? KJ From: Nancy Howell [mailto:nhowell@ntenginee rs.coml Sent: Tuesday, May 22, 2012 5:41 PM To: Johnson, Kelly Subject: GoGas No.20 (NT #11106) Ms. Johnson, We met on site with Mr. Vince Lewis and he recommend a slight change to the plans for the above subject project. Do you want us to revise the plans showing this slight change and submit them to you? Phil Please note my new address is pnorrisC@ntengineers.com J. Phillip Norris, P.E. Norris & Tunstall Consulting Engineers, P.C. 1429 Ash Little River Road Ash, NC 28420 910-287-5900 (phone) 910-287-5902 (fax) It is the professional opinion of Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. that this electronic information provides design information current as of the date of its release. It shall be the responsibility of the party receiving the data to examine it to see that it contains the necessary files and information requested. In transferring the files in electronic media format, Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. makes no representations as to the usability or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by Norris & Tunstall Consulting Engineers, P.C. and Norris, Kuske & Tunstall Consulting Engineers, Inc. in the preparation of such data. No virus found in this message. Checked by AVG - www.avv-.com Version: 2012.0.2171 / Virus Database: 2425/5017 - Release Date: 05/23/12 No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2171 / Virus Database: 2425/5036 - Release Date: 05/31/12 Al T:#—Ill& 078" 04' 30.00" W 078' 04' 00.00" W 078° 03' 30M- W 078" 03' 00.00" W 078° 02' 30.00" W 35 1`• '�' — -i' ��+ � \` - i �'++ _ � �- .! .cam- � � } 25- Certi a f cws 1 Church 6! c Z "��" -� �� -y •`\ 1 miv 1 f [!! f ! � PeBArt 34 Chl'�•�. IR. f �. - •mil �' F 'F.lq` J I Z - - -y r f !. / a� ,� 4rtii` / ul co i _ 1 f P \� 1 _ F / CDo sk 25 C3 CD jo to -f t1i0;1 �• rY 1 RPORT Saw 79 Stevens all s 81ciK� -10 1 — / ���� Z - - - t � fl r- - _ '.�" " � _ , - � .�_ • _ �-INTiLgCOq�rTA1 � �rueL � �-b ••i.• �" � •ir. r - '1111 wArE CD En �'-b ' .Ib + + - ,. r+e Co t C 2008 To 078° 04' 30.00" W 078' 04' 00.00" W 078° 03' 30.00" W 078° 03' 00.00" W 078' 02' 30.00" W �] rx� GEFVE, APR 16 2012 By- %WMIL i 1z -4f 1127 Floral Parkway Suite 400 Wilmington, NC 28403 (910)343-9653 (910)343-9604 Fax John S. Tunstall, P.E. May 23, 2012 Norris & Tunstall Consulting Engineers, P.C. Ms. Kelly Johnson NC DENR Division of Water Quality Surface Water Protection 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re: Go Gas #20 Stormwater Permit No. SW8 120408 Request for Additional Information Response NT Project No. 11106 Dear Ms. Johnson: 1429 Ash -Little River Road Ash, NC 28420 (910)287-5900 (910)287-5902 Fax J. Phillip Norris, P.E. We are responding to your request for additional information by enclosing two (2) sets of the plans showing the information requested by Vince Lewis. We could have sent this in sooner but could not determine who was assigned to the project. Please contact us if you have any additional questions or comments. Thank you for your assistance on this project. Sincerely, NORRIS & TUNSTALL Jh SULTING ENGINEER P.C. ' orris, E. 11106 05-23-12 s-sw-resp-I#r cc: Kit Austin / GoGas Corporation Reggie Stanley / GoGas Corporation MAY 2 4 2012 BY.— NCBELS License C-3641 A:t41 & 7joiA NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Governor Director May 23, 2012 Mr. Kermit E. Austin, Jr, President c/o Jasper Willetts, Facility & Construction Manager 3301 Burnt Mill Drive Wilmington, NC 28403 Subject: Request for Additional Information Stormwater Project No. SW8120408 GOGAS #20 Brunswick County Dear Mr. Austin: Dee Freeman Secretary The Wilmington Regional Office received and accepted a State Stormwater Management Permit Application for GOGAS #20 on April 19, 2012. 1 was notified today that the design accepted on this date is in conflict with the State's Soil Scientist's findings from the same date, and that redesign will be necessary. The application submitted on April 19, 2012 therefore has not been reviewed. Review will be delayed pending the redesign submittal. Please 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 June 25, 2012, 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. 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 originai 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) 796-7215 or email me at kelly.p.johnson@ncdenr.gov. Sinc eiy, OT— �— Kelly Johnson Environmental Engineer GDSlkpj: S:IWQSIStormwaterlPermits & Projects120121120408 HD12012 05 addinfo 120408 cc: Phil Norris, PE Wilmington Regional Office Stormwater File Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One Phone: 910-796-72151 FAX: 910-350-20041 DENR Assistance: 1-877-623-6748 NorthCarolina Intemet: www.ncwaterquality.org 'JVatum" ly An Equal Opportunity 4 ArfrmaUve Action Employer 1127 Floral Parkway Suite 400 Wilmington, NC 28403 (910) 343-9653 (910) 343-9604 Fax John S. Tunstall, P.E. April 13, 2012 Norris & Tunstall Consulting Engineers, P.C. Ms. Jo Casmer NC DENR 1 Division of Water Quality Water Quality Section 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re: State Stormwater Permit Submittal GoGas No. 20 Brunswick County, NC N&T Project No. 11106 Dear Ms. Casmer: 1429 Ash -Little River Road Ash, NC 28420 (910) 287-5900 (910) 287-5902 Fax J. Phillip Norris, P.E. Enclosed are two (2) sets of plans for the above referenced project, which include the drainage area plans, one (1) set of calculations, one (1) copy of the stormwater narrative, one (1) USGS map, one (1) copy of the soils 1 infiltration system report (1) copy of the Articles of Organization, the original Division of Water Quality Stormwater Management Permit application, the original SW-401 Infiltration Basin Supplement form, the original Infiltration Basin Operation and Maintenance Agreement and a $505.00 check for the permit review fee. Please review this information for approval and contact us with any questions or comments you may have. Thank you for your assistance on this project. Sincerely, NORRIS & TUNSTALL CONSULTING ENGINEERS .C. Ph ' orris, E. JPN/neh 11106 04-13-12-s-sw-Itr Enclosures cc: Mr. Kit Austin 1 GOGAS Corporation F—CEIVA APR 16 �01� BY: NCBELS License C-3641 NA NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Governor Director May 31, 2012 Mr, Kermit E. Austin, Jr, President c/o Jasper Willetts, Facility & Construction Manager 3301 Burnt Mill Drive Wilmington, NC 28403 Subject: Request for Additional Information Stormwater Project No. SW8120408 GOGAS #20 Brunswick County Dear Mr. Austin: Dee Freeman Secretary The Wilmington Regional Office received and accepted a State Stormwater Management Permit Application for the subject project most recently on May 23, 2012. A preliminary in-depth review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1,) 10Year14Hour Storm: Please provide the 10yr24hr simple method volume calculation and the drawdown time for this volume. Please show that this volume can infiltrate at half the reported rate per Option 4 of page 16-9 of the BMP Manual. 2.) Wetlands: Please either delineate wetlands on the plan or include a note that there are no wetlands onsite. 3.) Bottom of Basin: The State Soil Scientist's report shows that there is an existing manmade pond onsite that will be backfilled with clean sand, and that the bottom of the proposed infiltration basin will be located at the elevation of the top of the clean sand (at the top of the old pond). Please confirm that the top of the old pond=top of the "new" backfilled sand=bottom of proposed infiltration basin=12.Omsl. 4.) SHWT: There appears to be a typo on the supplement which says that the SHWT is at 1.0msl. The plans say that it is at 10.Omsl. I will fix the supplement to show 10.Omsl and initial the change unless you have objections Please 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 June 13, 2012, 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. 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. Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One 1 Phone: 910-796-72151 FAX: 910-350-20041 DENR Assistance: 1-877-623-6748 No thCarofina Internet: www.n[waferquality.org Naturally An Equal Opportunity 1Af{irmatNeAclion Employer 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) 796-7215 or email me at kelly.p.johnson@ncdenr.gov. Vohon vJro Enviroental gineer GDSlkpj: S:MQ&Stormwate6Permits & Projects120121120408 HD12012 05 addinfo 120408_2 cc: Phil Norris, PE Wilmington Regional Office Stormwater File Page 2 of 2