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Home My WebLink About20100752_Stormwater Outfall_R-2237C_Bill's Lane_20160909 Carpenter,Kristi From:Smarshallcpa <smarshallcpa@aol.com> Sent:Friday, September 09, 2016 12:30 PM To:Wanucha, Dave Subject:Re: Stormwater Outfall_R-2237C_Bill's Lane Follow Up Flag:Follow Up Due By:Friday, September 09, 2016 12:50 PM Flag Status:Flagged Dave: Thank you very much sir. You have been very responsive and helpful. Have a good weekend. Best regards, Shannon Sent from my iPhone On Sep 9, 2016, at 11:03 AM, Wanucha, Dave <dave.wanucha@ncdenr.gov> wrote: Hi Shannon, I’m confident that DOT will get back to you. It took Marc a few days to get back to me last week. Let me know if they do not. DWR collects water quality data (chemical, physical and biological) throughout the Yadkin River Basin at a number of locations on a regular basis. I’ve provided links to the reports and data. Unfortunately, there are no monitoring locations near your property. However, you can get an idea of the kind of data we collect. These data could be used for comparison purposes if you decide to conduct any water quality monitoring in Bailey Camp Creek. Our intensive survey unit conducts special studies across the state. I do not believe they would be able to conduct baseline data collection at your location, but I will inquire. I’m sure you know there are consultants that can collect these data for you. In terms of water quality, benthic macroinvertebrate assemblages (aquatic insects) are one of the best measures for indicating water quality of streams. DWR uses benthics to assign bioclassifications as part of our basinwide assessment reports (see links) and other reports to the EPA. Physical measurements of specific conductance, dissolved oxygen, temperature and pH are standard parameters collected during benthic collections. Measuring flow requires a velocity meter or flow can be estimated using USGS’s stream stats website (see link). You simply click on your location and flow stats are provided based on estimated drainage area. Monitoring bank erosion can be simply done by installing bank pins and monitoring soil loss over time. The last link below is to NCSU’s stream restoration program. It has a lot of technical information related to stream stability measurements and geomorphology in general. I hope this information is useful to you. If I can be of further assistance let me know. I’ll get back to you next week once I consult with our Intensive Survey Unit. Have a good weekend. 1 http://water.usgs.gov/osw/streamstats/north_carolina.html https://ncdenr.s3.amazonaws.com/s3fs- public/Water%20Quality/Environmental%20Sciences/Reports/Yadkin2012Ambient.pdf https://ncdenr.s3.amazonaws.com/s3fs- public/Water%20Quality/Environmental%20Sciences/Reports/Yad_11Final_withtemplates.pdf http://www.bae.ncsu.edu/programs/extension/wqg/srp/index.html Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha@ncdenr.gov NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 <image003.png> Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Smarshallcpa \[mailto:smarshallcpa@aol.com\] Sent: Thursday, September 08, 2016 8:36 PM To: Wanucha, Dave <dave.wanucha@ncdenr.gov> Subject: Re: Stormwater Outfall_R-2237C_Bill's Lane Dave: Thank you for the feedback. I have reached out to my contact at DOT for specific data requests and have received no response from anyone. This level of response and urgency is not consistent with that encountered prior to engaging DEQ. I would like to benchmark the flow and water quality at my property. Is this something that your department can help me with? If this is on me to do, can your department give me guidance as to the most qualitative benchmark measurements? Thank you for your support and help in this matter. Best regards Shannon Sent from my iPad 2 On Sep 8, 2016, at 8:45 AM, Wanucha, Dave <dave.wanucha@ncdenr.gov> wrote: Hi Marshall, I met with DOT staff yesterday at the location of the outfall. Marc Shown provided the data (see attached) used to design the pipe and outfall. Note the drainage area estimates. As I understand it, the catchment area upstream of the staked outfall draining to the stream is 204 acres. Of that, 6.7 acres are captured by the pipe system. DOT thinks that the small amount of drainage area captured by the stormwater pipe system will not likely cause further downstream instability. Much of the energy will be dissipated as it moves through the piping system. Marc is working on quantifying impacts to the stream and stream bank as a result of the riprap pad and piping system. A permit modification may be required as well as mitigation to compensate for the impacts. If mitigation is required, DOT will likely work through the Division of Mitigation Services to satisfy mitigation requirements. Marc will be happy to talk with you concerning the data. His number is 919-707- 6751. Email is mshown@ncdot.gov. I appreciate you contacting our office with your concerns. Call me at my office if you would like to discuss further or send me an email. I plan to be at my office later this afternoon. Thanks. Dave W. Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha@ncdenr.gov NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 <image002.png> Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. <Outfall_data_.pdf> 3