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Home My WebLink About20220990 Ver 1_RE: [External] RE: 2809 Connector Drive_20220720CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. <mailto:report.spam@nc.gov> Hi Colleen, I left a voicemail for you late afternoon yesterday to figure out how to best proceed with our permit application. I see what you are asking and apologize for the misunderstanding. We would need to state that the fixes the City doing are permanent bank stabilization and not temporary in our ePCN. Rip-rap would be keyed in along the base of the stream channel and continue to the top of bank. This rip-rap would not continue into the buffer and would be placed in the stream channel to stabilize it (see screenshot of work below). We would not be impacting anymore than 150 feet for stream stabilization. Please give me a call if we are missing something and how best to proceed with changing the impacts in the ePCN from temporary to permanent stream stabilization. We will pass on the note to the City of Raleigh about the geotextile in streams and wetlands being devoid of plastic. We realize this is general conditions of the WQGC4276 certificate. From: Cohn, Colleen M <colleen.cohn@ncdenr.gov> Sent: Tuesday, July 19, 2022 4:14 PM To: Tisdale, Jessica <Jessica.Tisdale@hdrinc.com>; George.L.Phillips@usace.army.mil Cc: Montalvo, Sheri A <sheri.montalvo@ncdenr.gov>; Brice, Mary <Mary.Brice@hdrinc.com>; Murphy, Michael <Michael.H.Murphy@hdrinc.com> Subject: RE: [External] RE: 2809 Connector Drive CAUTION: [EXTERNAL] This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. I am still not understanding based on what was submitted. Rip rap is a permanent bank stabilization impact, and it is unclear if rip rap is being placed within the stream channel. Additionally, rip rap placed within the buffer for streambank stabilization for the protection of publicly owned utility lines requires a buffer authorization for greater than 150 feet of streambank disturbance. Additionally, geotextile fabric that contains plastic should not be used within streams and wetlands. It is unclear if the geotextile fabric referred to in the application contains plastic. Colleen Cohn Environmental Specialist II North Carolina Department of Environmental Quality Division of Water Resources Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Office: 919-791-4258 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: Tisdale, Jessica <Jessica.Tisdale@hdrinc.com> Sent: Tuesday, July 19, 2022 3:59 PM To: Cohn, Colleen M <colleen.cohn@ncdenr.gov>; George.L.Phillips@usace.army.mil Cc: Montalvo, Sheri A <sheri.montalvo@ncdenr.gov>; Brice, Mary <Mary.Brice@hdrinc.com>; Murphy, Michael <Michael.H.Murphy@hdrinc.com> Subject: [External] RE: 2809 Connector Drive CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. <mailto:report.spam@nc.gov> Hi Colleen, Thank you for reaching out. Please see my notes below and let me know if you are Lyle have any further questions. Our engineers are copied on this email as well. Jessica From: Cohn, Colleen M <colleen.cohn@ncdenr.gov <mailto:colleen.cohn@ncdenr.gov> > Sent: Tuesday, July 12, 2022 1:59 PM To: Tisdale, Jessica <Jessica.Tisdale@hdrinc.com <mailto:Jessica.Tisdale@hdrinc.com> >; George.L.Phillips@usace.army.mil <mailto:George.L.Phillips@usace.army.mil> Cc: Montalvo, Sheri A <sheri.montalvo@ncdenr.gov <mailto:sheri.montalvo@ncdenr.gov> > Subject: 2809 Connector Drive CAUTION: [EXTERNAL] This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi Jessica, We are working on processing the application that was submitted as a Courtesy Copy to DWR and had a couple of questions. 1. I see that 150 linear feet of temporary impacts are proposed for Streambank Stabilization, but it sounds like some permanent streambank stabilization measures, such as rip rap/boulders/rock are being proposed. Are there any permanent impacts? There are no permanent impacts as these bank stabilization measures will be used on the banks on two locations of this stream to protect the sewer manholes. We added a stream bank stabilization detail to the submittal. 2. What are the buffer impacts for the project? I don’t see any buffer impacts shown on the maps. The application states that the project will impact a “total of approximately 1,500 square feet of streambank” and it is unclear if this is stream impacts or buffer impacts. There are no trees as this site has been cleared for development prior. The impacts to the streambank would occur in the stream channel and we assessed these impacts as temporary stream impacts. See photos during the site visit in which the stream was unfortunately very silty/clayey due to other development in the vicinity not associated with City activities. Thanks, Colleen Cohn Environmental Specialist II North Carolina Department of Environmental Quality Division of Water Resources Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Office: 919-791-4258 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.