20030147 Ver 2_2015 WQ Compliance Report_20160411

April 11, 2016
The Honorable Kimberly D. Bose, Secretary
Federal Energy Regulatory Commission
888 First Street N. E.
Washington, DC 20426
Re: Duke Energy Progress, LLC
Yadkin -Pee Dee Hydroelectric Project (FERC No. 2206)
2015 Water Quality Compliance Report
Dear Secretary Bose:
Duke Energy Corporation
526 South Church Street
Charlotte, NC 28202
Mailing Address:
EC12Y/P.O. Box 1006
Duke Energy Progress, LLC (Duke Energy) was issued a New License by the Federal Energy Regulatory
Commission (FERC) for the Yadkin -Pee Dee Hydroelectric Project (Pro)ect, FERC No. 2206) on April 1,
2015. Enclosed is the 2015 Water Quality Compliance Report required to be submitted annually for the
Project by Article 402 of the New License and the 401 Water Quality Certificate (WQC), Condition 9
(Appendix A of the New License).
Please contact Tami Styer at [phone] (Tami.Styerkduke-energy.com) if you have questions or
required additional information.
Sincerely,
Jeffrey G. Lineberger, P.E.
Director, Water Strategy and Hydro Licensing
Duke Energy
Enclosure: Yadkin -Pee Dee Hydroelectric Project, 2015 Water Quality Compliance Report
cc w/enclosure: Ms. Karen Higgins, Environmental Program Supervisor
Division of Water Resources, 401 Permitting Unit
North Carolina Department of Environmental Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
cc w/o enclosure: Tami Styer
George Galleher
Lynne Dunn
David Scott

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Yadkin -Pee Dee Hydroelectric Project
FERC Project No. 2206
2015 Water Quality Compliance Report
Duke Energy Progress, LLC
April 2016

Yadkin -Pee Dee Hydroelectric Project
FERC Project No. 2206
2015 Water Quality Compliance Report
1.0 Background
On April 1, 2015, the Federal Energy Regulatory Commission (FERC) issued Duke Energy Progress,
LLC (Duke Energy) a New License for the Yadkin -Pee Dee Hydroelectric Project (Pro)ect, FERC Project
No. 2206). License Article 402 contains FERC approval of Duke Energy's Dissolved Oxygen
Compliance Implementation Plan (Compliance Plan), filed with FERC on January 20, 2012, to meet the
water quality monitoring requirements outlined in Sections III.A.2 and III.B.2 of the 401 Water Quality
Certification (WQC) issued by the North Carolina Department of Environment and Natural Resources,
Division of Water Quality (NCDENR-DWQ)'.
This report fulfills the annual water quality compliance reporting requirement outlined in the WQC for
monitoring conducted in 2015. The data reported here conform to requirements outlined in the
Compliance Plan, Section 8.0 — Compliance Monitoring and Reporting.
2.0 Compliance Monitoring
As required in the Compliance Plan, the following parameters were measured at 15 -minute intervals from
May 1 through November 30, 2015, in the tailwaters of the Tillery and Blewett Falls Developments:
• Dissolved oxygen, mg/L
• Dissolved oxygen, % saturation
• Temperature, °C
• River stage height, feet
Measurements were carried out by the United States Geological Survey (USGS) as required by Section
7.0 of the Compliance Plan, at the following locations:
' The North Carolina Department of Environment and Natural Resources (NCDENR) became the NC Department
of Environmental Quality (NCDEQ) on September 18, 2015. A consolidation between the NC Division of Water
Quality (NCDWQ) and NC Division of Water Resources (NCDWR) in August of 2013, changed the name of the
NCDWQ to NCDWR.
2
USGS Gage
Development
Number
USGS Gage Description
Tillery
0212378405
Pee Dee River at Highway 731 below Lake Tillery near Norwood,
North Carolina
Blewett Falls
0212880025
Pee Dee River below Powerhouse Dam near Pee Dee, North Carolina
' The North Carolina Department of Environment and Natural Resources (NCDENR) became the NC Department
of Environmental Quality (NCDEQ) on September 18, 2015. A consolidation between the NC Division of Water
Quality (NCDWQ) and NC Division of Water Resources (NCDWR) in August of 2013, changed the name of the
NCDWQ to NCDWR.
2

3.0 Compliance Reporting
Results reported here are based on approved data provided to Duke Energy by USGS after their final
quality assurance review, as specified in Section 8.0 of the Compliance Plan.
This report and the associated Excel file provide the following results for data collected May 1 through
November 30, 2015, consistent with requirements outlined in the Dissolved Oxygen Compliance
Implementation Plan:
• Dissolved oxygen and temperature recorded at 15 -minute intervals
• Daily minimum, maximum, and average dissolved oxygen values
• Daily minimum, maximum, and average temperature values.
Dissolved oxygen, temperature, and river stage height data measured at 15 -minute intervals at the USGS
monitoring locations in the tailwaters of the Tillery and Blewett Falls Developments are reported in the
Excel file associated with this report: Tillery and Blewett Falls Tailwaters Water Quality Data 2015.xlsx.
Daily average, minimum, and maximum dissolved oxygen and temperature data are reported in Table 1
for the Tillery Development and in Table 2 for the Blewett Falls Development. Daily average, minimum,
and maximum dissolved oxygen values are plotted in Figure 1 (Tillery Development) and Figure 2
(Blewett Falls Development). Daily average, minimum, and maximum temperature values are plotted in
Figure 3 (Tillery Development) and Figure 4 (Blewett Falls Development).
Missing Data
Dissolved oxygen, temperature, and stage height were measured at 15 -minute intervals, generally
resulting in a total of 96 observations per day. Table 3 documents dates during the study period for which
fewer than 96 observations per day were recorded, as well as explanations from USGS of why data were
missing. According to USGS, water disturbance occurred at times when calibration of the
instrumentation occurs and sondes were swapped out, resulting in the occasional occurrence of one or two
missing observations per day (Table 3) for both USGS gages.
On June 16, 2015, the dissolved oxygen monitor at the Blewett Falls Development (USGS Gage No.
0212880025) began to malfunction due to fouling of the dissolved oxygen probe. Fouling resulted in a
loss of dissolved oxygen data from 21:15 EDT on June 16 through 11:45 EDT on June 18 (see below for
discussion of compliance during this period). Four missing observations at Blewett Falls (Gage No.
0212880025) on June 25, 2015, were attributed to a communication error from the buoy to the data logger
but the radio signal continued to transmit the data to the station Performance Information (PI) System.
On November 9, 2015, 06:00-11:30 EST (twenty-three observations), the USGS gage below the Tillery
Development (No. 0212378405) experienced low battery voltage which resulted in missing data from
0600 hours to 1130 hours. The dissolved oxygen concentrations during this time of year are well above
the state water quality standards under natural conditions (see Figure 1) and the station did not deviate
from normal operations.
3

4.0 Compliance with Water Quality Standards
The WQC issued by NCDWR (Appendix A of the New License) specifies that dissolved oxygen
concentrations in Project tailwaters will comply with North Carolina water quality standards for dissolved
oxygen. Applicable water quality standards are as follows (NCDENR-DWQ 2007, as cited in Progress
Energy Carolinas, Inc. 2012):
Standard for instantaneous dissolved oxygen concentration: 4.0 mg/L
Standard for daily (24-hour) average dissolved oxygen concentration: 5.0 mg/L
In no case during the monitoring period (May 1 through November 30, 2015) did instantaneous
dissolved oxygen concentrations fall below 4.0 mg/L at either the Tillery Development or Blewett
Falls Development, as documented in final, approved USGS data sets. Similarly, daily 24-hour
average dissolved oxygen concentrations in the tailwaters of Tillery and Blewett Falls Developments
did not fall below 5.0 mg/L during the monitoring period (Figures 1 and 2; Tables 1 and 2).
On June 16, 2015, at 21:15 EDT, the dissolved oxygen monitor in the Blewett Falls tailrace began to
malfunction due to fouling, as previously noted. Dissolved oxygen values below 4.0 mg/L were recorded
early on June 17. Measurement of dissolved oxygen by Duke Energy Environmental Services personnel
confirmed that the monitor was malfunctioning, and that dissolved oxygen values were at or above 7.5
mg/L. USGS was notified of the malfunction on June 17, and monitoring equipment was replaced on
June 18. USGS determined that dissolved oxygen data collected from 21:15 EDT on June 16 through
11:45 EDT on June 18, 2015 were invalid, and excluded these data from the final, approved USGS data
set. NCDEQ-DWR and FERC were notified of this issue on June 23, 2015, as the erroneous low
dissolved oxygen concentrations resulted in a deviation from the minimum flow requirement. In response
to the notification, Duke Energy was informed by FERC on September 2, 2015, that the deviation would
not be considered a violation of the Project license or of NCDEQ-DWRs Water Quality Certification.
5.0 References
NCDENR-DWQ. 2007. NCDENR-Division of Water Quality — Redbook. Surface waters and wetlands
standards. North Carolina Administrative Code 15A NCAC 0213.0 100, .0200 & .0300. Amended
effective: May 1, 2007. North Carolina Department of Environment and Natural Resources, Division of
Water Quality, Raleigh, North Carolina. (as cited in Progress Energy Carolinas, Inc. 2012)
Progress Energy Carolinas, Inc. 2012. Yadkin Pee -Dee Hydroelectric Project No. 2206, Tillery and
Blewett Falls Developments, Dissolved Oxygen Compliance Implementation Plan, January 20, 2012.
Progress Energy Carolinas, Inc., Charlotte, North Carolina.
4

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Table 1 (page 1 of 5). Daily average, minimum, and maximum dissolved oxygen (mg/L) and
temperature (°C) observed May 1 - November 30, 2015, at the Tillery Development.
Data were collected every 15 minutes by USGS at USGS Gage No. 0212378405, located at
Highway 731 near Norwood, NC.
E
Tillery
Development
Dissolved Oxygen,
mg/L
Temperature, °C
Date
Average
Minimum
Maximum
N
Average
Minimum Maximum
N
5/1/2015
9.7
7.2
13.5
96
17.2
16.1
18.3
96
5/2/2015
10.0
7.0
14.9
96
17.7
15.8
22.2
96
5/3/2015
11.0
7.0
16.0
96
18.8
16.0
22.9
96
5/4/2015
8.1
7.0
13.0
96
17.0
16.5
17.6
96
5/5/2015
8.5
6.7
13.0
96
17.3
16.4
20.0
96
5/6/2015
8.8
6.7
15.9
96
17.4
16.2
20.5
96
5/7/2015
7.7
6.7
8.5
96
17.8
17.1
18.2
96
5/8/2015
7.7
6.2
10.3
96
18.4
17.8
19.0
96
5/9/2015
8.0
5.9
13.8
96
19.3
18.2
23.5
96
5/10/2015
7.7
6.0
12.5
96
19.8
19.1
22.3
96
5/11/2015
8.0
5.8
13.8
96
20.0
18.3
25.7
96
5/12/2015
6.9
5.9
7.8
96
18.8
18.4
19.1
96
5/13/2015
7.5
6.0
12.5
96
19.7
19.0
21.5
96
5/14/2015
8.5
6.0
14.0
96
20.4
19.2
24.9
96
5/15/2015
8.9
6.2
13.6
96
20.9
19.2
23.6
96
5/16/2015
7.5
5.6
13.6
96
20.0
19.0
24.7
96
5/17/2015
8.5
6.0
14.0
96
20.6
19.1
25.8
96
5/18/2015
8.4
5.6
13.3
96
21.6
19.5
26.8
96
5/19/2015
7.2
5.6
12.6
95
21.0
19.7
24.5
95
5/20/2015
7.8
5.5
12.7
95
22.1
20.1
27.5
95
5/21/2015
8.2
5.1
12.0
96
23.2
21.3
26.3
96
5/22/2015
8.1
5.0
11.6
96
23.6
20.8
27.2
96
5/23/2015
8.3
5.2
11.7
96
23.2
20.4
27.1
96
5/24/2015
8.4
5.5
11.7
96
22.9
20.2
26.8
96
5/25/2015
8.3
5.2
11.8
96
22.3
19.9
26.6
96
5/26/2015
7.2
5.4
11.1
96
21.6
19.7
26.4
96
5/27/2015
6.8
5.5
10.9
94
21.6
20.2
25.4
94
5/28/2015
7.1
5.6
10.0
96
21.5
20.3
24.3
96
5/29/2015
6.5
5.1
10.1
96
21.8
20.7
26.1
96
5/30/2015
7.1
5.6
10.3
96
22.3
20.7
26.6
96
5/31/2015
7.0
5.5
10.2
96
22.9
20.7
27.8
96
6/1/2015
7.0
5.4
10.4
96
22.4
20.9
26.2
96
6/2/2015
7.1
5.7
10.3
96
22.8
21.5
27.6
96
6/3/2015
7.0
5.6
9.5
96
23.0
22.4
24.1
96
6/4/2015
6.8
5.6
9.4
96
22.8
21.6
24.3
96
6/5/2015
6.7
5.6
9.5
96
23.2
21.8
28.0
96
6/6/2015
6.6
5.0
9.1
96
23.6
21.7
28.9
96
6/7/2015
6.6
5.1
9.1
96
23.5
21.6
28.2
96
6/8/2015
6.5
4.3
9.4
96
22.7
21.4
26.6
96
6/9/2015
7.5
5.8
9.4
96
24.4
22.3
28.0
96
6/10/2015
7.0
5.8
9.2
96
24.0
21.8
28.4
96
6/11/2015
6.6
5.2
8.9
96
23.6
21.8
28.6
96
6/12/2015
6.7
5.3
9.0
96
23.4
22.0
26.8
96
6/13/2015
6.9
5.4
8.6
96
25.9
23.2
29.2
96
E

Table 1 (page 2 of 5). Daily average, minimum, and maximum dissolved oxygen (mg/L) and
temperature (°C) observed May 1 - November 30, 2015, at the Tillery Development.
Data were collected every 15 minutes by USGS at USGS Gage No. 0212378405, located at
Highway 731 near Norwood, NC.
Tille
10
Dissolved Oxygen,
mg/L
Temperature, °C
Date
Average
Minimum
Maximum
N
Average
Minimum Maximum
N
6/14/2015
6.8
5.4
8.4
96
26.9
24.2
30.6
96
6/15/2015
6.3
5.0
8.5
96
25.5
22.5
31.0
96
6/16/2015
5.9
4.7
8.3
96
25.2
22.6
30.6
96
6/17/2015
5.7
4.7
8.3
96
25.1
22.8
30.4
96
6/18/2015
6.0
4.4
8.4
95
25.0
22.6
30.6
95
6/19/2015
6.5
5.5
8.5
96
25.1
22.8
30.2
96
6/20/2015
6.7
5.5
8.2
96
27.0
25.1
30.2
96
6/21/2015
6.9
5.3
8.5
96
27.1
24.3
30.8
96
6/22/2015
6.2
5.2
8.2
96
26.3
23.2
31.6
96
6/23/2015
6.3
5.2
8.4
96
26.2
23.2
31.1
96
6/24/2015
5.8
4.7
8.3
96
24.8
23.2
29.9
96
6/25/2015
5.8
4.4
8.1
96
25.4
23.2
30.7
96
6/26/2015
6.6
5.4
8.3
96
27.3
24.4
31.6
96
6/27/2015
6.5
4.1
8.5
96
25.6
23.2
29.6
96
6/28/2015
6.4
5.2
8.3
96
26.1
23.6
30.9
96
6/29/2015
6.3
5.3
8.2
96
26.2
24.1
30.9
96
6/30/2015
6.0
4.6
8.1
96
25.5
23.6
29.9
96
7/1/2015
6.2
4.8
8.8
96
25.1
23.9
29.2
96
7/2/2015
6.1
5.1
8.3
96
25.5
24.2
29.0
96
7/3/2015
6.1
4.6
8.2
96
25.0
23.8
26.9
96
7/4/2015
6.4
5.4
8.5
96
25.3
24.5
27.6
96
7/5/2015
6.3
5.0
8.4
96
25.6
24.2
29.9
96
7/6/2015
6.4
4.7
8.5
96
25.6
24.3
29.8
96
7/7/2015
6.3
4.7
8.5
96
26.1
24.4
30.8
96
7/8/2015
6.2
5.2
8.5
96
25.9
24.3
30.0
96
7/9/2015
6.3
5.2
8.3
96
26.7
25.1
31.2
96
7/10/2015
6.2
5.1
8.3
96
27.2
25.5
31.4
96
7/11/2015
6.1
5.1
8.0
96
27.6
25.5
31.6
96
7/12/2015
6.1
4.9
8.0
96
27.9
25.2
32.2
96
7/13/2015
6.1
4.8
8.1
96
27.2
25.0
31.4
96
7/14/2015
6.0
4.3
8.2
96
26.4
25.0
30.2
96
7/15/2015
6.3
5.2
8.1
96
26.8
25.8
30.0
96
7/16/2015
6.0
5.0
8.0
96
27.3
25.5
31.0
96
7/17/2015
6.1
5.2
8.2
94
27.2
25.6
32.0
94
7/18/2015
6.1
5.3
8.3
96
26.7
25.4
31.0
96
7/19/2015
5.9
4.4
8.2
96
26.8
25.7
31.3
96
7/20/2015
5.8
4.3
8.2
96
26.8
25.5
31.4
96
7/21/2015
5.8
4.8
8.1
96
26.8
25.6
31.0
96
7/22/2015
5.9
4.8
8.0
96
27.5
26.0
31.9
96
7/23/2015
6.1
5.0
8.2
96
28.2
26.8
30.9
96
7/24/2015
6.3
4.8
8.2
96
28.2
26.2
30.4
96
7/25/2015
6.0
4.6
8.4
96
27.5
25.9
32.0
96
7/26/2015
6.0
4.8
8.5
96
26.9
25.8
30.3
96
10

Table 1 (page 3 of 5). Daily average, minimum, and maximum dissolved oxygen (mg/L) and
temperature (°C) observed May 1 - November 30, 2015, at the Tillery Development.
Data were collected every 15 minutes by USGS at USGS Gage No. 0212378405, located at
Highway 731 near Norwood, NC.
11
Tillery Development
Dissolved Oxygen, mg/L
Temperature, °C
Date
Average
Minimum
Maximum
N
Average
Minimum Maximum
N
7/27/2015
6.0
4.2
8.5
96
27.6
26.2
32.2
96
7/28/2015
6.0
4.8
8.7
96
27.4
26.1
31.4
96
7/29/2015
6.0
4.8
8.6
96
27.5
26.3
31.5
96
7/30/2015
5.9
4.4
8.8
96
27.7
26.5
32.2
96
7/31/2015
6.2
4.9
8.4
96
28.6
27.0
32.6
96
8/1/2015
6.1
4.9
8.5
96
28.3
26.7
32.8
96
8/2/2015
6.3
5.0
8.8
96
28.2
26.4
32.6
96
8/3/2015
6.1
4.8
9.0
95
27.9
26.7
31.5
95
8/4/2015
6.2
4.3
9.1
96
28.0
26.6
32.6
96
8/5/2015
5.9
4.9
8.8
96
27.8
27.0
32.2
96
8/6/2015
6.0
4.4
8.8
96
27.8
26.7
31.1
96
8/7/2015
6.4
5.2
8.8
96
27.5
27.0
30.0
96
8/8/2015
6.3
5.1
8.6
96
28.0
27.1
31.2
96
8/9/2015
6.2
5.1
8.8
96
28.0
27.0
31.4
96
8/10/2015
6.0
5.1
8.8
96
27.2
26.7
29.4
96
8/11/2015
5.9
4.7
8.5
96
27.1
26.9
28.5
96
8/12/2015
6.4
5.2
8.7
96
27.5
26.4
31.0
96
8/13/2015
6.7
5.1
8.8
96
28.1
26.1
30.9
96
8/14/2015
6.7
5.5
9.2
96
28.0
26.4
31.6
96
8/15/2015
6.9
5.4
9.5
96
28.0
26.3
31.4
96
8/16/2015
7.0
5.3
9.3
96
28.4
26.7
31.4
96
8/17/2015
7.0
4.1
9.7
96
28.5
26.8
31.8
96
8/18/2015
6.1
4.4
8.8
96
27.4
26.8
28.8
96
8/19/2015
6.0
4.3
8.8
94
27.3
26.6
30.6
94
8/20/2015
6.1
5.2
8.8
96
27.4
26.8
30.1
96
8/21/2015
6.8
5.3
8.8
96
28.6
26.9
31.6
96
8/22/2015
6.8
5.2
8.8
96
28.9
27.1
31.8
96
8/23/2015
6.0
5.1
8.8
96
27.6
27.1
29.9
96
8/24/2015
6.1
5.0
8.7
96
27.9
27.0
31.6
96
8/25/2015
6.4
4.9
8.9
96
27.9
26.8
31.4
96
8/26/2015
6.3
5.1
8.9
96
27.7
26.6
31.0
96
8/27/2015
6.9
5.3
8.9
96
27.9
26.8
30.1
96
8/28/2015
6.3
5.0
7.7
96
27.5
26.1
29.0
96
8/29/2015
7.1
5.6
9.1
96
27.4
25.7
29.8
96
8/30/2015
6.6
5.0
8.7
96
27.1
26.2
28.5
96
8/31/2015
6.3
4.8
8.9
96
26.8
25.5
28.9
96
9/1/2015
6.4
5.0
9.1
96
27.6
26.0
31.8
96
9/2/2015
6.1
5.1
8.8
96
27.3
26.2
29.8
96
9/3/2015
6.2
5.0
8.9
96
27.6
26.4
31.4
96
9/4/2015
6.2
5.0
8.8
96
27.8
26.4
31.1
96
9/5/2015
6.5
5.1
8.9
96
27.6
26.7
30.2
96
9/6/2015
6.4
4.8
8.8
96
27.6
26.4
30.2
96
9/7/2015
6.1
4.8
8.8
96
27.4
26.8
29.4
96
11

Table 1 (page 4 of 5). Daily average, minimum, and maximum dissolved oxygen (mg/L) and
temperature (°C) observed May 1 - November 30, 2015, at the Tillery Development.
Data were collected every 15 minutes by USGS at USGS Gage No. 0212378405, located at
Highway 731 near Norwood, NC.
12
Tillery Development
Dissolved Oxygen, mg/L
Temperature, °C
Date
Average
Minimum
Maximum
N
Average
Minimum Maximum
N
9/8/2015
6.3
5.1
8.9
96
27.6
26.5
30.9
96
9/9/2015
6.3
4.8
9.0
96
27.7
26.6
31.0
96
9/10/2015
6.4
5.1
9.1
96
27.7
26.8
31.1
96
9/11/2015
5.9
4.8
8.9
95
27.4
26.5
29.7
95
9/12/2015
6.0
4.9
8.5
96
26.8
26.2
27.7
96
9/13/2015
6.9
5.4
8.9
96
25.8
23.8
28.0
96
9/14/2015
6.9
5.4
9.1
96
26.1
23.7
29.8
96
9/15/2015
7.2
5.5
9.4
96
26.0
23.4
29.7
96
9/16/2015
6.9
5.3
9.8
96
25.5
23.7
27.8
96
9/17/2015
6.6
5.3
9.4
96
25.7
24.2
28.0
96
9/18/2015
6.6
5.1
9.2
96
25.9
24.1
29.7
96
9/19/2015
6.4
5.1
9.2
96
25.8
24.2
29.4
96
9/20/2015
6.6
5.1
9.1
96
26.2
24.5
30.3
96
9/21/2015
6.4
5.4
9.2
96
25.8
25.0
26.9
96
9/22/2015
7.0
5.3
9.1
96
25.2
24.4
26.7
96
9/23/2015
7.4
5.8
9.6
96
25.2
23.8
27.4
96
9/24/2015
6.9
5.9
9.2
96
24.3
23.3
25.4
96
9/25/2015
7.2
5.8
9.1
96
24.2
23.6
24.9
96
9/26/2015
7.0
5.4
9.2
96
24.2
23.7
24.9
96
9/27/2015
7.0
5.7
9.2
96
24.1
23.4
24.8
96
9/28/2015
6.7
5.6
9.5
96
24.5
24.0
25.7
96
9/29/2015
6.8
5.3
9.7
96
24.8
24.2
26.7
96
9/30/2015
6.6
5.5
9.8
96
24.7
24.1
27.3
96
10/1/2015
6.7
5.8
9.0
96
23.9
23.5
24.3
96
10/2/2015
6.8
6.5
7.0
96
23.7
23.3
24.0
96
10/3/2015
6.9
6.7
7.1
96
23.0
22.6
23.3
96
10/4/2015
7.1
6.7
8.4
96
22.4
22.1
22.6
96
10/5/2015
7.6
7.0
9.1
96
21.7
21.3
22.0
96
10/6/2015
7.8
6.6
9.8
96
21.1
20.0
23.9
96
10/7/2015
7.5
6.7
8.9
96
20.3
19.4
20.8
96
10/8/2015
7.6
6.7
10.0
96
20.6
19.6
23.8
96
10/9/2015
7.8
6.6
10.1
96
20.7
19.5
24.4
96
10/10/2015
7.4
6.9
9.2
96
20.5
20.4
20.6
96
10/11/2015
7.7
6.8
8.3
96
20.7
20.4
21.0
96
10/12/2015
7.6
6.5
9.8
96
20.6
19.3
23.7
96
10/13/2015
7.2
6.3
10.0
96
20.4
19.6
22.4
96
10/14/2015
7.7
6.0
10.2
96
21.2
19.3
24.2
96
10/15/2015
7.1
5.9
8.8
96
20.2
18.8
21.4
96
10/16/2015
7.6
6.4
10.7
96
20.0
18.7
22.3
96
10/17/2015
7.3
6.5
8.2
96
19.7
18.1
20.7
96
10/18/2015
8.1
6.5
9.8
96
19.4
17.4
20.9
96
10/19/2015
8.2
7.1
10.8
96
19.6
17.2
22.2
96
10/20/2015
8.2
6.9
11.3
96
19.4
17.1
22.6
96
12

Table 1 (page 5 of 5). Daily average, minimum, and maximum dissolved oxygen (mg/L) and
temperature (°C) observed May 1 - November 30, 2015, at the Tillery Development.
Data were collected every 15 minutes by USGS at USGS Gage No. 0212378405, located at
Highway 731 near Norwood, NC.
ment
13
Dissolved Oxygen,
mg/L
Temperature, °C
Date
Average
Minimum
Maximum
N
Average
Minimum Maximum
N
10/21/2015
8.7
7.0
11.6
95
19.6
17.2
22.8
95
10/22/2015
9.3
7.4
12.3
96
19.5
17.3
22.8
96
10/23/2015
9.4
7.4
12.5
96
19.3
17.4
22.6
96
10/24/2015
9.4
7.4
12.6
96
19.4
18.0
22.1
96
10/25/2015
9.3
7.3
12.7
96
19.4
18.2
21.6
96
10/26/2015
8.8
7.5
11.4
96
18.8
18.1
19.2
96
10/27/2015
8.9
7.7
11.1
96
18.0
17.4
18.8
96
10/28/2015
8.8
7.7
11.1
96
19.1
18.5
20.8
96
10/29/2015
9.1
7.5
11.8
96
19.2
18.3
21.0
96
10/30/2015
8.9
7.7
11.4
96
19.0
17.8
21.3
96
10/31/2015
8.8
7.3
11.5
96
18.5
16.9
20.0
96
11/1/2015
8.1
7.4
9.6
100
18.4
17.9
18.7
100
11/2/2015
8.2
7.7
9.4
96
18.5
18.5
18.6
96
11/3/2015
8.2
7.9
8.4
96
18.5
18.4
18.5
96
11/4/2015
8.4
7.9
10.2
95
18.2
17.9
18.7
96
11/5/2015
8.6
7.8
10.0
96
17.9
17.8
18.0
96
11/6/2015
8.2
7.7
8.8
96
17.8
17.7
18.1
96
11/7/2015
8.3
7.8
8.8
96
17.8
17.7
18.0
96
11/8/2015
8.5
7.9
8.9
96
17.8
17.1
18.0
96
11/9/2015
8.8
8.0
9.8
73
17.5
16.6
17.8
73
11/10/2015
9.8
8.8
10.2
96
17.2
16.7
17.5
96
11/11/2015
9.8
9.3
10.4
96
16.5
16.2
16.7
96
11/12/2015
9.4
9.0
9.5
95
16.2
15.2
16.4
95
11/13/2015
9.5
8.9
10.3
96
16.3
15.5
17.4
96
11/14/2015
9.3
8.7
10.4
96
16.0
14.4
17.4
96
11/15/2015
9.4
8.7
10.8
96
15.8
14.1
17.5
96
11/16/2015
9.1
8.6
10.4
96
15.3
13.9
17.2
96
11/17/2015
9.4
8.6
11.0
96
15.5
14.2
17.3
96
11/18/2015
9.3
8.6
10.9
96
15.4
14.6
17.0
96
11/19/2015
8.9
8.8
9.0
96
15.1
15.0
15.2
96
11/20/2015
9.2
8.9
10.0
96
15.2
15.1
15.4
96
11/21/2015
9.2
9.0
9.5
96
15.0
14.8
15.2
96
11/22/2015
9.0
8.8
9.3
96
14.7
14.3
14.9
96
11/23/2015
9.3
8.8
11.0
96
14.3
12.8
15.4
96
11/24/2015
9.5
8.6
11.5
96
14.4
12.5
16.2
96
11/25/2015
9.0
8.6
10.7
96
13.7
12.5
15.2
96
11/26/2015
9.6
8.7
11.6
96
14.0
12.5
16.3
96
11/27/2015
9.3
8.7
11.0
96
13.7
12.8
15.1
96
11/28/2015
9.6
8.8
11.7
96
13.7
12.9
15.3
96
11/29/2015
9.8
8.7
12.0
96
13.9
13.2
16.0
96
11/30/2015
9.4
8.8
10.7
96
13.5
13.2
13.9
96
13

41
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N N N N N N N N N N N N N N N N N N N N N N N .. N N N N N N N N N N N N N N N N N N N
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N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N W W N N N N
J J J 00 J J J J J J J J 00 J J J GO 00 00 00 00 GO GO J GO 00 00 00 00 GO �O �O �O �O �O �O �O O O �O �O �O �O
a1 Oo � O �-. O O -. w W a, � w .P O •P O •P N O O O O �O -. •P a, � a, � w .P a1 Oo N •P oo w -. .P w O O
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N W W W W W W W W W W N W
GO X X 11O X �l X �l �l X �l X X X �l X X 11O X X X GO GO GO GO 11O 11O 11O X 111:1 "O
� •P J w J Go O vi a1 O �c D1 J a1 J — co •p Oo D1 •p a1 J a1 �c O w — �O vi �O w Oo a1 •P vi O J N
41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 cn 01 41 41 41 41 01 01 01 01 41 41 41 41 •p 01 01 01 41 41 41 41 01 01

0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 o 0 0 0 o
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N N N N N N N N
O �O Go J O, cn •P w N � O � Oo J O, cn .P w N � O � Oo J a1 vi .P w N � O � Go J a1 vi •P w N � O � Go
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
J J J 01 01 J J J J 01 01 01 01 41 41 J J O1 O1 J C1 0, 0, 0, 0, C1 J J � J GO GO C1 O1 O1 O1 O1 C1 -A C1 01 1-11 C1
J O1 W �O Oo O N cn o0 0o J �O •P a1 �c O, O N — •P •P •P �O O J O a1 a1 O a1 X W W .p O a1 N co O1 —
o, o, 0, 0, 0, 0, 0, 0, o, o, 0, 0, --1 --1 o, o, v, 1-11 v 0, 0, 0, 0, 0, �1 X 0, v o, o, v, 'A -A P P v v
W lJ O n P a1 v�c O J" W J a1 J W cn " �O O, J N O N P cn " cn J Go N a1 P O X �O W a a O lJ
GO 00 00 J J GO J J J J J J J J J J J J J X �1 41 J 41 J J J X11:1 IC O c Go J O, J x 01 01 Go Go J J
J Oo O1 W O1 J vi .P W Oo O1 O O O a1 J W O O N a1 •P a1 vi O, W O, cn O W •P N J J O — co vi �— GO O x
41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 � 41 01 01
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
Go 0o 0 0 0 Cl Cl Cl Cl 0 O co co J O w w w w w w P p p v v, v v v v v, v, C1 C1 J J co co J J
w Oo O, N W Vi Vi .P •P J O O, � Vi � � � •P � Oo cn .P W a1 O W �O v, �O a1 � a1 Vi J �O v, �O w J � N J �O
y
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
Go 0o 0 0 0 0 0 0 0 0 0 0 O O Go J a oo w w w w w w •p •p v, v, v v v v v, v, C1 C1 J J J J J J
O •P W W N N W GO — cn W cn J �— J �--a1 Go a1 •P cn
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
Go 0 0 0 0 0 0 0 0 O O co J w •P- w w w w •P •P- v v C1 v 171 171 171 cn C1 C1 J J J co co J X
C1 w w O1 �c Go J J O �O Vi Vi GO — (�A N Oo O �c Go N O X — J W a1 �c Go �c �c O,
41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 41 41 01 01 01 01 41 41 � 41 01 01
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Table 2 (page 5 of 5). Daily average, minimum, and maximum dissolved oxygen (mg/L) and
temperature (°C) observed May 1 - November 30, 2015, at the Blewett Falls Development.
Data were collected every 15 minutes by USGS at USGS Gage No. 0212880025, located on
the Pee Dee River near Pee Dee, NC.
m
Blewett Falls Development
Dissolved Oxygen, mg/L
Temperature, °C
Date
Average
Minimum
Maximum
N
Average
Minimum Maximum
N
10/21/2015
8.3
7.6
9.6
95
17.9
17.7
18.1
95
10/22/2015
9.0
8.6
9.7
96
18.0
17.8
18.5
96
10/23/2015
9.0
8.2
9.8
96
18.2
17.9
18.7
96
10/24/2015
9.1
8.6
9.7
96
18.2
18.1
18.4
96
10/25/2015
9.0
8.3
9.7
96
18.5
18.2
19.0
96
10/26/2015
8.9
8.1
9.6
96
18.6
18.4
18.8
96
10/27/2015
9.1
8.1
9.6
96
18.4
18.3
18.6
96
10/28/2015
8.4
8.2
8.7
96
18.2
18.1
18.3
96
10/29/2015
8.3
8.0
8.8
96
18.3
18.2
18.6
96
10/30/2015
8.6
8.2
8.9
96
18.7
18.4
19.1
96
10/31/2015
7.9
7.4
8.4
96
18.6
18.2
19.0
96
11/1/2015
7.0
6.8
7.4
100
18.1
18.0
18.3
100
11/2/2015
7.6
7.1
8.0
96
18.0
17.9
18.0
96
11/3/2015
7.6
7.3
8.0
96
17.5
17.3
17.8
96
11/4/2015
7.3
7.2
7.5
96
17.6
17.5
17.7
96
11/5/2015
7.0
6.7
7.2
96
17.7
17.4
18.0
96
11/6/2015
7.2
6.8
7.6
96
18.1
17.9
18.2
96
11/7/2015
7.4
7.2
7.7
95
18.3
18.2
18.4
95
11/8/2015
7.5
7.2
7.6
96
18.0
17.8
18.3
96
11/9/2015
7.5
7.3
7.9
96
17.5
17.0
17.8
96
11/10/2015
8.5
7.7
8.8
96
16.2
16.0
17.0
96
11/11/2015
8.7
8.4
8.8
96
15.8
15.5
16.0
96
11/12/2015
8.0
7.8
8.4
96
15.3
15.0
15.5
96
11/13/2015
8.5
8.0
8.8
96
15.7
15.3
15.9
96
11/14/2015
8.3
8.1
8.5
96
15.4
15.0
15.6
96
11/15/2015
8.4
8.1
8.7
96
14.5
14.4
15.0
96
11/16/2015
8.6
8.4
8.8
96
14.4
14.2
14.5
96
11/17/2015
8.6
8.4
8.8
96
14.4
14.2
14.6
96
11/18/2015
8.6
8.4
8.8
96
14.5
14.4
14.6
96
11/19/2015
8.7
8.2
8.9
96
15.3
14.6
15.9
96
11/20/2015
7.9
7.6
8.3
96
15.9
15.6
16.0
96
11/21/2015
7.8
7.4
8.1
96
15.2
14.9
15.6
96
11/22/2015
8.0
7.5
8.4
96
14.5
14.1
14.9
96
11/23/2015
8.3
8.1
8.4
96
13.5
13.2
14.1
96
11/24/2015
8.5
8.3
8.6
96
12.9
12.5
13.3
96
11/25/2015
8.6
8.4
8.8
96
12.5
12.3
12.6
96
11/26/2015
8.8
8.6
8.9
96
12.6
12.4
12.9
96
11/27/2015
8.6
8.4
8.9
96
13.2
12.9
13.8
96
11/28/2015
8.6
8.2
8.9
96
13.2
12.9
13.4
96
11/29/2015
8.5
8.3
8.7
96
13.4
13.1
13.8
96
11/30/2015
8.3
8.2
8.5
96
13.8
13.6
14.0
96
m

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