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Home My WebLink AboutNC0058416_Additional Information Requested_20180216South Granville Water and Sewer Authority February 9, 2018 Board Staff Members Members Herman Dear Brianna Young, Wilkerson Edgar Lindsay L. Smoak Mize, Vice -Chair Director I have attached the results for five days of Total Hardness data for the water Bill treatment plant effluent from Outfall 001. As well as an email from Mr. J. Beverly Birdsong Curtis Weaver giving us the 7Q10 and 30Q2 data that you have requested as Beal, well. Secretary Jimmy Gooch Kenneth McLamb Tim Karan Thank you, Leanna Shiver Herman Wilkerson Leanna Shiver Archer Wilkins Water Chemist RECEIVED/DENR/DWR FEB A 6 2018 Water Resources Permitting Section South Granville Water and Sewer Authority 415 Central Avenue, Suite B Butner, NC 27509 (919) 575-3118 phone (919) 575-4547 fax 415 Central Avenue, Suite B, Butner 27509 (919) 575-3367 FAX (919) 575-4547 www.sgwasa.org Contact: Fred Dancy Client: SGWASA-WTP 415 Central Ave. #B Butner, NC 27509 Meritech, Inc. Environmental Laboratory Laboratory Certification No. 165 Meritech Work Order # 01261823 Parameters Results Report Date: 2/7/2018 Date Sample Rcvd: 1/26/2018 Sample: Outfall Effluent 1/22/18 Analysis Date Reporting Limit Method Hardness (titration) 16 mg/L 2/1/18 1 mg/L SM 2340C Meritech Work Order # 01261824 Sample: Outfall Effluent 1/23/18 Parameters Results Analysis Date Reporting Limit Method Hardness (titration) 20 mg/L 2/1/18 1 mg/L SM 2340C Meritech Work Order # 01261825 Sample: Outfall Effluent 1/24/18 Parameters Results Analysis Date Reporting Limit Method Hardness (titration) 20 mg/L 2/1/18 1 mg/L SM 2340C Meritech Work Order # 01261826 Sample: Outfall Effluent 1/25/18 Parameters Results Analysis Date Reporting Limit Method Hardness (titration) 16 mg/L 2/1/18 1 mg/L SM 2340C Meritech Work Order # 01261827 Sample: Outfall Effluent 1/26/18 Parameter Results Analysis Date Reporting Limit Method Total Suspended Solids 78 mg/L 1/30/18 2.5 mg/L SM 2540 D Hardness (titration) 24 mg/L 2/1/18 1 mg/L SM 2340C Turbidity 14.3 NTU 1/26/18 1.0 NTU EPA 180.1 I hereby certrfy that I have reviewed and approve these data, Representative 642 Tamco Road, Reidsville, North Carolina 27320 tel.(336)342-4748 fhm(336)342-1522 Mail - Ishiver@sgwasa.org M https //outlook.office365 com/owa/9rea1m=sgwasa FW: Response from USGS concerning low -flow characteristics for tributary to Knap of Reeds Creek ... Re: Fred Dancy Fri 2/9/2018 10 53 AM To Leanna Shiver <Ishiver@sgwasa org>, FYI From: Weaver, John [mailto:Jcweaver@usgs.gov] Sent: Friday, February 09, 2018 10:37 AM To: Fred Dancy Cc: Lindsay Mize; Jeanne Robbins; John C Weaver Subject: Response from USGS concerning low -flow characteristics for tributary to Knap of Reeds Creek... Re: Mr. Dancy, In response to your inquiry about the 7Q10 and 30Q2 low -flow discharges for an outfall location that drains to an unnamed tributary to Knap of Reeds Creek at Butner in southwestern Granville County, the following information is provided A check of the low -flow files here at the USGS South Atlantic Water Science Center (Raleigh office) does not indicate a previous low -flow determination for the point of interest identified by the lat/long coordinates (36 08 27 N // 78 46 08 W) listed on the map attached to your email dated February 7, 2017 No USGS discharge records are likewise known to exist for the point of interest In the absence of site-specific discharge records sufficient for a low -flow analysis, estimates of low -flow characteristics at ungaged locations are determined by assessing a range in the low -flow yields (expressed as flow per square mile drainage area, of cfsm) at nearby sites where estimates have been determined For streams in southwestern Granville County, low -flow characteristics published by the USGS are provided in the following reports (1) The first is a statewide report completed in the early 1990's It is USGS Water -Supply Paper 2403, "Low -flow characteristics of streams in North Carolina" (Giese and Mason, 1993) An online version of the report is available at http //pubs usgs gov/wsp/2403/report pd f The report provides the low - flow characteristics (based on data through 1988) via regional relations and at -site values for sites with drainage basins between 1 and 400 sqmi and not considered or known to be affected by regulation and/or diversions (2) The second is a basin -wide report for the Neuse River basin published in 1998 It is USGS Water -Resources Investigations Report 98-4135, "Low -flow characteristics and discharge profiles for selected streams in the Neuse River basin, North Carolina" (Weaver, 1998) The report is available online at http //pubs usgs gov/wn/1998/4135/report pd f This report provides low -flow characteristics (based on data through 1996) for USGS continuous- and partial -record sites in the Neuse River basin where sufficient data was available for analyses However, the report does not provide statistical relations for estimating low -flow characteristics at ungaged locations (3) The third is a statewide report published in March 2015 Itis USGS Scientific Investigations Report 2015-5001, "Low -flow characteristics and flow - duration statistics for selected USGS continuous -record streamgaging stations in North Carolina through 2012" (Weaver, 2015) The report is available online at http ////pubs usgs gov/sir/2015/5001/ The report provides updated low -flow characteristics and flow -duration statistics for 266 active (as of 2012 water year) and discontinued streamgages across the state where a minimum of 10 climatic years discharge records were available for flow analyses Visual inspection of the stream location on a topographical map suggests very little to almost no basin area upstream from the point of interest Efforts to complete a drainage -area delineation using the USGS StreamStats application for North Carolina (http //water usgs gov/osw/streamstats/north carolma html) 1 of 2 2/9/2018,11:02 Mail - lshiver@sgwasa.org https:Houtlook.office365.com/owa/9reahn=sgwasa org&exsvurl=1&11-.. resulted in a value well less than 0 01 sgmi Consideration of the extremely small drainage area results in a conclusion that (1) the 7Q10 discharge for the point of interest is zero flow and (2) the 30Q2 is very likely zero flow (but less than 0 05 cfs) Please understand the information provided in this message is based on a preliminary assessment and considered provisional Hope this information is helpful. Thank you. Curtis Weaver 3. Curtis Weaver, Hydrologist, PE USGS South Atlantic Water Science Center North Carolina - South Carolina - Georgia 3916 Sunset Ridge Road Raleigh, NC 27607 Email: icweaver@usgs.00v Online: httos•//www.usas.aov/centers/sa-water Phone: (919) 571-4043 // Fax: (919) 571-4041 On Wed, Feb 7, 2018 at 11:49 AM, Fred Dancy <fdancy(a�sgwasa.org> wrote. Mr. Weaver Attached is letter from the Compliance and Expedited Permitting Unit to the SGWASA requesting additional information to completed our NPDES permit renewal application. The second informational request is for 7Q10 and 30Q2 at our Outfall location. I have attached a copy of the request and the facility location sheet from my current permit. Please review this information and provide me any information you have on file. Any information that you can provide will be greatly appreciated. Fred Dancy Utilities Director SGWASA 919-575-3118 — Office 919-339-0055 - Cell )f 2 2/9/2018,11-02 AM