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Home My WebLink About20131013 Ver 1_Staff Comments_20131016Strickland, Bev From: Devane, Boyd Sent: Wednesday, October 16, 2013 9:32 AM To: Jeff Harbour Cc: Smith, Cherri L; Strickland, Bev Subject: RE: Thomas Allen Driveway project in Franklin County #20131013. In thinking about your concern about the amount of information needed for a driveway, I was wondering why the land owner wanted a 20' roadway for his single family residence. That seems very unusual. If, for example, he had chosen a 10' roadway, he might have been able to get out of the requirement to obtain a DWR permit by disturbing less than 25' stream buffer at the crossing. If he disturbs more than the 25' of stream bank, he must show that the newly created stormwater discharge will cross the buffer in a diffuse manner. Boyd DeVane NC Division of Water Resources 1617 Mail Service Center Raleigh, NC 27699 -1617 919 - 807 -6373 Fax: (919) 807 -6494 NEW Webslte: http: / /portal.ncdenr.org /web /wq /ws /su Notice: E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and therefore may be disclosed to third parties. From: Jeff Harbour [mailto:jharbour @ESINC.CC] Sent: Thursday, October 10, 2013 2:14 PM To: Devane, Boyd Cc: Smith, Cherri L Subject: RE: Thomas Allen Driveway project in Franklin County #20131013. Forwarded your request to the engineer. Didn't realize the amount of detail necessary for a single family driveway. Whew... Thanks for your assistance. ENVIRONMENTAL N. Asst. Vice President/Senior Manager 524 S. New .., Road I Raleigh, 0 919-212-1760 Phone 919-212-1707 Fax 919-805-4208 Cr ESI Website I Read ESI News I Follow Us on Twitter I ESI Green News Blog Confidentiality Notice: The information and all attachments contained in this electronic communication are privileged and confidential information, and intended only for the use of the intended recipient(s). If the reader of this message is not an intended recipient, you are hereby notified that any review, use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately of the error by return e -mail and please permanently remove any copies of this message from your system and do not retain any copies, whether in electronic or physical form or otherwise. Thank you. From: Devane, Boyd [ mailto:boyd.devaneCa)ncdenr.Qov] Sent: Thursday, October 10, 2013 1:43 PM To: Jeff Harbour Cc: Smith, Cherri L; Devane, Boyd Subject: RE: Thomas Allen Driveway project in Franklin County #20131013. I did find the full -sized drawings today that you submitted earlier. Unfortunately, the two DWR staff who could have located the original drawings for me were on extended sick leave. When I sent you the October 4t" email (see below), I asked for information showing how you can meet the diffuse flow requirements of any new stormwater discharge resulting from the road and the crossing. Since your response did not mention how you would address the "diffuse" flow requirement, I figured that that information was included in the other drawings that I had not seen. After looking at the larger drawings, I see that the information that I asked for in my October 4t" email is not included. Therefore, you need to get me the information I need so I can certify that the requirements that only diffuse, and non - erosive stormwater will flow across the 50' Tar - Pamlico buffer. Although there are various ways to provide that information, my basic needs are: 1. Show on a drawing what the final elevations and slope of the road will be so I will know what flows are going across the buffers at the crossing and what flows are diffused across the landscape 2. Show on a drawing if swales or ditches will line the road or if runoff from the road will flow in a diffuse manner across the landscape. 3. Show on a drawing the drainage area that is contributing stormwater to the buffer area. 4. Calculation of velocity of stormwater going across the buffer and how the Diffuse Flow Requirement of the Tar - Pamlico buffer rules will be met. The Tar - Pamlico buffer rules can be found at this link. DOC I will look forward to working with you to get the proper approvals for this project. If you have any questions, please call me at 919 - 807 -6373 On Oct 4, 2013, at 9:16 AM, " Devane, Boyd" <boyd.devane @ncdenr.gov> wrote: I work with the NC Division of Water Resources in Raleigh, NC and have the responsibility for reviewing certain engineering practices regarding stormwater discharges. I am working with Cherri Smith on the review of the Thomas Allen Driveway project in Franklin County #2013 -1013. The Tar - Pamlico buffer rules require DWR to certify that stormwater discharges from the bridge and any created stormwater drainage ways associated with roads at the stream crossing meet the rule's diffuse flow buffer requirements. The two(very small) site drawings that I received do not contain information that enables me to certify that only diffuse flow across the stream buffers will occur. Per the requirements of the Tar - Pamlico Riparian Buffer Rule, you must show that the site meets the diffuse flow requirements with a level spreader- vegetated filter strip or other BMP per Chapter 8 of the BMP Manual (see http: / /Portal.ncdenr.org /web /wq /ws /su /bmp- manual). I cannot make the determination without having information (preferably engineered drawings) showing final grading elevations, stormwater drainage patterns and the presence of any ditches or swales. If you have questions, please email me or contact me by phone at the number below. Boyd DeVane NC Division of Water Resources 1617 Mail Service Center Raleigh, NC 27699 -1617 919 - 807 -6373 Fax: (919) 807 -6494 NEW Webslte: http: / /portal.ncdenr.org /web /wq /ws /su Notice: E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and therefore may be disclosed to third parties. From: Jeff Harbour [mailto:jharbour(a)ESINC.CC] Sent: Monday, October 07, 2013 2:56 PM To: Smith, Cherri L; Devane, Boyd Subject: RE: Thomas Allen Driveway project in Franklin County #20131013. Boyd, Have you located the full size plans I sent? ESI Website I Read ESI News I Follow Us on Twitter I ESI Green News Blog Confidentiality Notice: The information and all attachments contained in this electronic communication are privileged and confidential information, and intended only for the use of the intended recipient(s). If the reader of this message is not an intended recipient, you are hereby notified that any review, use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately of the error by return e -mail and please permanently remove any copies of this message from your system and do not retain any copies, whether in electronic or physical form or otherwise. Thank you. From: Smith, Cherri L [ mai Ito: cherri.smith(a)ncdenr.Qov] Sent: Friday, October 04, 2013 11:22 AM To: Devane, Boyd; Jeff Harbour Subject: RE: Thomas Allen Driveway project in Franklin County #20131013. I just have the 11" x 17" copies as well. The full -sized copy may have been filed in the Central Office files so I'm sure Boyd is checking on that. From: Devane, Boyd Sent: Friday, October 04, 2013 10:30 AM To: Jeff Harbour Cc: Smith, Cherri L Subject: RE: Thomas Allen Driveway project in Franklin County #20131013. Thanks. I'll check on it further. The only thing I have is the two -page 11 "x17" "Stocks Engineering" sheets. Boyd D U;iil Service Cetter Raleigh, NC 27699 -1617 919 - 807 -6373 Fax: (919) 807 -6494 NEW Webslte: http: / /portal.ncdenr.org /web /wq /ws /su 3 Notice: E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and therefore may be disclosed to third parties. From: Jeff Harbour [mailto:jharbourCa)ESINC.CC] Sent: Friday, October 04, 2013 10:26 AM To: Devane, Boyd Cc: Smith, Cherri L; Strickland, Bev Subject: Re: Thomas Allen Driveway project in Franklin County #20131013. Full size drawings were submitted with the original package. Cherri -can you check on this? Jeff Sent from my iPhone On Oct 4, 2013, at 9:16 AM, " Devane, Boyd" <boyd.devane @ncdenr.gov> wrote: I work with the NC Division of Water Resources in Raleigh, NC and have the responsibility for reviewing certain engineering practices regarding stormwater discharges. I am working with Cherri Smith on the review of the Thomas Allen Driveway project in Franklin County #2013 -1013. The Tar - Pamlico buffer rules require DWR to certify that stormwater discharges from the bridge and any created stormwater drainage ways associated with roads at the stream crossing meet the rule's diffuse flow buffer requirements. The two(very small) site drawings that I received do not contain information that enables me to certify that only diffuse flow across the stream buffers will occur. Per the requirements of the Tar - Pamlico Riparian Buffer Rule, you must show that the site meets the diffuse flow requirements with a level spreader- vegetated filter strip or other BMP per Chapter 8 of the BMP Manual (see http: / /Portal.ncdenr.org /web /wq /ws /su /bmp- manual). I cannot make the determination without having information (preferably engineered drawings) showing final grading elevations, stormwater drainage patterns and the presence of any ditches or swales. If you have questions, please email me or contact me by phone at the number below. Boyd DeVane NC Division of Water Resources 1617 Mail Service Center Raleigh, NC 27699 -1617 919 - 807 -6373 Fax: (919) 807 -6494 NEW Website: http: / /portal.ncdenr.org /web /wq /ws /su Notice: E-mail correspondence to and from this address may be subject to the North Carolina Publ "N'ecords Law and therefore may be disclosed to third parties.