NC0090212_Other_20231113 (2)

Weaver, John C
From: Weaver, John C
Sent: Wednesday, November 2, 2022 9:55 PM
To: [e-mail]
Cc: [e-mail]; Montebello, Michael J; Dowden, Doug; Litzenberger, Kristin S; Denard,
Derek; Albertin, Klaus P; Weaver, John C
Subject: RESEND... RE: USGS response to DWR USGS Low Flows request # 2023-239 (dated 2022/10/12) for
Kings Creek Cleveland County ... RE: [EXTERNAL] Low -flow request approval
RESEND due to corrected subject line. Apologies for the confusion.
JCWeaver
J. Curtis Weaver, Hydrologist, PE Email: icweaver0usns.aov
USGS South Atlantic Water Science Center Online: httns://www.usns.aov/centers/sa-water
North Carolina - South Carolina - Georgia
3916 Sunset Ridge Road
Raleigh, NC 27607
Phone: [phone] // Fax: [phone]
From: Weaver, John C <[e-mail]>
Sent: Wednesday, November 2, 2022 9:40 PM
To: [e-mail]
Cc: [e-mail]; Montebello, Michael J <[e-mail]>; Dowden, Doug
<[e-mail]>; Litzenberger, Kristin S <[e-mail]>; Denard, Derek
<[e-mail]>; Albertin, Klaus P <[e-mail]>; Weaver, John C <[e-mail]>
Subject: USGS response to DWR USGS Low Flows request # 2023-239 (dated 2022/07/21) for Leepers Creek Lincoln
County... RE: [EXTERNAL] Low -flow request approval
Ms. Curling,
In response to your inquiry about the low -flow characteristics for a location on Kings Creek adjacent an industrial waste
pond and approximately 1,200 feet upstream from Interstate 85 near Kings Mountain in southeastern Cleveland 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 specific point of interest, identified by the lat/long coordinates (35.214398, -
81.353251) provided via email dated 10/12/2022 from the DWR USGS Low Flows portal following your request
submission. However, the low -flow files do indicate previous low -flow determinations for nearby locations on Kings
Creek. Completed prior to 1990 and again most recently in March 2018 and August 2020, the low -flow characteristics
were determined by transfer of flow characteristics from nearby index sites.
No USGS discharge records are 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, or cfsm) at nearby sites where estimates have been determined.
A basin delineation completed using the online USGS StreamStats application for North Carolina
(https://streamstats.usgs.gov/ss/) indicates the drainage area for the point of interest (StreamStats adjusted
coordinates 35.21361,-81.35392 NAD83) is 2.06 sgmi, which confirms the drainage area submitted as part of the
request information.
For streams in southeastern Cleveland 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 https://pubs.usgs.gov/wsp/2403/report.pdf. 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 sgmi and not considered
or known to be affected by regulation and/or diversions.
(2) The second is a statewide report published in March 2015. It is 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 https://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.
Low -flow characteristics estimated for point of interest:
Inspection of the above two reports indicates the presence of ten (10) nearby selected USGS partial -record sites (10) and
continuous -record streamgages (0) across southeastern Cleveland County and western Gaston County in the general
vicinity of the point of interest where low -flow characteristics were published. Among these 10 index sites, the low -flow
discharge yields for the indicated flow statistics are as follows:
Annual 7Q10 low -flow yields =_> from 0.13 to 0.38 cfsm (average about 0.19 cfsm, median about 0.17 cfsm)
Annual 30Q2 low -flow yields =_> from 0.35 to 0.68 cfsm (average about 0.47 cfsm, median about 0.44 cfsm)
Winter 7Q10 low -flow yields =_> from 0.23 to 0.58 cfsm (average about 0.35 cfsm, median about 0.33 cfsm)
Annual 7Q2 low -flow yields ==> from 0.26 to 0.6 cfsm (average about 0.37 cfsm, median about 0.34 cfsm)
Average annual discharge yields ==> from 1.2 to 1.4 cfsm (both average and median about 1.3 cfsm)
For the record: Low -flow estimates were determined for nearby locations on Kings Creek (downstream location above
Bethlehem Road) and nearby Dixon Branch in response to a March 2018 low -flow request. The group of index sites used
for the 2018 response included 3 partial -record sites in southeastern Cleveland County and 1 partial -record site in
northwestern Gaston County. For this request, the group of nearby index sites was expanded with 6 additional partial -
record sites across southeastern Cleveland County and western Gaston County. Averages of the low -flow yields from
this expanded group were a little bit lower than the averages applied to the low -estimates in the 2018 response, but the
larger group of index sites provides some additional levels of confidence in the estimated low -flow characteristics
provided above.
Application of the above range in yields to the drainage area (2.06 sgmi) for the point of interest results in the following
estimated low -flow discharges:
Annual 7Q10 low -flow discharges ==> from 0.27 to 0.78 cfs (average about 0.39 cfs, median about 0.35 cfs)

Annual 30Q2 low -flow discharges =_> from 0.72 to 1.4 cfs (average about 0.97 cfs, median about 0.91 cfs)
Winter 7Q10 low -flow discharges =_> from 0.47 to 1.2 cfs (average about 0.72 cfs, median about 0.68 cfs)
Annual 7Q2 low -flow discharges ==> from 0.54 to 1.2 cfs (average about 0.76 cfs, median about 0.7 cfs)
Average annual discharge discharges ==> from 2.5 to 2.9 cfs (both average and median about 2.7 cfs)
Please note:
(1) The estimated flows are provided in units of cubic feet per second (cfs).
(2) The low -flow yields provided above are rounded to 2 significant figures. Estimated low -flow discharges less than 1
cfs are rounded to 2 significant figures. If between 1 and 100 cfs, then rounded to 1 decimal place; if greater than 100,
then rounded to the nearest whole number (zero decimal places).
(3) The information provided in this message is based on a preliminary assessment and considered provisional, subject
to revision pending collection of future data and further analyses.
These provisional streamflow statistics are provided via the DWR USGS Low Flows cooperative agreement between
the USGS and the N.C. Department of Environmental Quality, Division of Water Resources.
Hope this information is helpful.
Thank you.
Curtis Weaver
J. Curtis Weaver, Hydrologist, PE Email: [e-mail]
USGS South Atlantic Water Science Center Online: https://www.usas.aov/centers/sa-water
North Carolina - South Carolina - Georgia
3916 Sunset Ridge Road
Raleigh, NC 27607
Phone: [phone] // Fax: [phone]
From: Albertin, Klaus P <[e-mail]>
Sent: Wednesday, October 12, 2022 11:18 AM
To: [e-mail]
Cc: Albertin, Klaus P <[e-mail]>; [e-mail]; Weaver, John C <[e-mail]>;
Montebello, Michael J<[e-mail]>; Dowden, Doug <[e-mail]>; Litzenberger,
Kristin S <[e-mail]>; Denard, Derek <[e-mail]>
Subject: [EXTERNAL] Low -flow request approval
This email has been received from outside of DOI - Use caution before clicking on links, opening attachments, or responding.
Your request has been approved and will be forwarded to USGS. A response from USGS usually takes 7 - 10 business
days.

Request Flow Statistic Approval
Request ID: 239
Requestor: Molly Curling
Requestor e-mail:[e-mail]
Requestor Phone: [phone]
Local Government:
Public Water Supply:
Consultant:
Contact: Curtis Weaver
Reason: Permit
River/Stream: Kings Creek
Drainage Area (sq. mi.): 2.06 sq miles
Latitude: 35.214398
Longitude:-81.353251
Other Information: Kings Creek in Cleveland County, NC
Statististics: ["Average Annual","7Q2","30Q2","7Q10 - Winter","7Q10"]
Approved by: Albertin, Klaus P
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