20030147 Ver 2_2017 Water Compliance Report_20180326

WATER STRATEGY, HYDRO
LICENSING AND LAKE SERVICES
Duke Energy Corporation
526 South Church Street
Charlotte, NC 28202

March 26, 2018

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)
2017 Water Quality Compliance Report

Dear Secretary Bose:

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 (Project, FERC No. 2206) on April 1,
2015. Enclosed is the 2017 Water Quality Compliance Report required annually for the Project by
Article 402 of the New License.

Please contact Tami Styer at [phone] ([e-mail]) 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, 2017 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
Lynne Dunn
David Scott
Phil Fragapane

Yadkin-Pee Dee Hydroelectric Project

FERC Project No. 2206

2017 Water Quality Compliance Report

Duke Energy Progress, LLC

March 2018

ii

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1
Yadkin-Pee Dee Hydroelectric Project
FERC Project No. 2206
2017 Water Quality Compliance Report
1.0 Background
On April 1, 2015, the Federal Energy Regulatory Commission (FERC; Commission) issued Duke Energy
Progress, LLC (Duke Energy) a New License for the Yadkin-Pee Dee Hydroelectric Project (Project,
FERC Project No. 2206). License Article 402 approved 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 Division of Water Resources (DWR).
This report fulfills the annual water quality compliance reporting requirement outlined in the WQC for
monitoring conducted in 2017. 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, 2017, in the tailwaters of the Tillery and Blewett Falls Developments:
•Dissolved oxygen, (DO), mg/L
•Water temperature, oC
•Gage height (river stage), 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:
Development USGS Station Number USGS Station 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
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, 2017:
•DO and water temperature recorded at 15-minute intervals
•Daily minimum, average, and maximum DO values
•Daily minimum, average, and maximum water temperature values.
Calculations for percent DO saturation (% sat) along with DO, water temperature, and gage height (river
stage) data measured at 15-minute intervals at the USGS monitoring locations described above are
reported in the Excel file associated with this report: Yadkin-Pee Dee Project Water Quality Data
2017.xlsx.
Daily minimum, average, and maximum DO concentration and water temperature data are reported in
Table 1 for the Tillery Development and in Table 2 for the Blewett Falls Development. Daily minimum
and average DO values are graphed for the Tillery Development in Figure 1 and for the Blewett Falls
Development in Figure 2. Daily minimum, average, and maximum water temperature values are graphed
in Figure 3 for the Tillery Development and Figure 4 for the Blewett Falls Development.
Data Recovery
Water temperature, DO and gage height were measured at 15-minute intervals, generally resulting in a
total of 96 observations per day. Overall recovery rates for approved continuous DO monitoring data
during the 2017 season were 96.0% for the station at Blewett Falls Development (No. 0212880025) and
99.96% for the station at Tillery Development (No. 0212378405). For either water quality station, routine
calibration and replacements of the monitoring instrumentation by USGS field staff typically resulted in
no more than one or two missing observations per event. Table 3 documents dates during the monitoring
period when the USGS performed routine calibration and maintenance of the field instrumentation.
On April 28, 2017, Duke Energy notified the Commission and DWR of a monitoring equipment
malfunction resulting in a delay in the start of water quality monitoring at the Blewett Falls Development
(No. 0212880025).1 Because of high inflow conditions, it was not safe to access the monitoring
equipment in the tailrace until water levels receded. Duke Energy notified the Commission and DWR
1 FERC E-library Accession No. 20170428-5102
3
again on May 22, 2017, that the equipment had been repaired on May 10, 2017, and was functioning
properly.2 In response to the notification, Duke Energy was informed by FERC on June 2, 2017, the
delay in the start of monitoring would not be considered a violation of the Project license.3
4.0 Compliance with Water Quality Standards
The WQC issued by DWR (Appendix A of the New License) specifies that DO concentrations in Project
tailwaters will comply with the applicable North Carolina water quality standards which are as follows
(NCDENR-DWQ, 2007):
Standard for instantaneous DO concentration, minimum: 4.0 mg/L
Standard for daily (24-hour) average DO concentration, minimum: 5.0 mg/L
In no case during the monitoring period (May 1 - November 30, 2017) did daily average DO
concentrations in the tailwaters of the Tillery or Blewett Falls Developments fall below the state standard
of 5.0 mg/L (see Figures 1 and 2). Similarly, instantaneous DO concentrations in the tailwaters of the
Blewett Falls Development did not fall below the 4.0 mg/L standard during the monitoring period (see
Figure 2).
The only instance of recorded DO values below the state instantaneous standard occurred at the Tillery
Development on Tuesday, July 11, 2017, when USGS Station No. 0212378405 recorded a single DO
value of 3.9 mg/l, at 19:45 while the hydro station was operating. The liquid oxygen system was in
operation and functioning as designed prior to the start of hydro station generation on July 11, 2017 at
16:00. Duke Energy notified FERC and DWR on July 14, 2017, that this single DO value was not likely
a result of project operations.4 In response to the notification, Duke Energy was informed by FERC on
August 25, 2017, that the deviation would not be considered a violation of the Project license.5
2 FERC E-library Accession No. 20170522-5065
3 FERC E-library Accession No. 20170602-3004
4 FERC E-library Accession No. 20170717-5008
5 FERC E-library Accession No. 20170825-3002
4
5.0 References
NCDENR-DWQ. 2007. NCDENR-Division of Water Quality Redbook. Surface waters and wetlands
standards. North Carolina Administrative Code 15A NCAC 02B.0100, .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.
5 Figure 1: Daily average and minimum DO concentrations downstream of the Tillery Development (USGS Station No. 0212378405), May 1 - November 30, 2017 2.03.04.05.06.07.08.09.010.011.05/1/20176/5/2017 7/10/2017 8/14/2017 9/18/2017 10/23/2017 11/27/2017Dissolved Oxygen, mg/lDate2017 Dissolved Oxygen - Tillery DevelopmentDaily Average DO StandardInstantaneous DO StandardDaily DO AverageDaily Minimum DO
6 Figure 2: Daily average, and minimum DO concentrations downstream of the Blewett Falls Development (USGS Station No. 0212880025), May 1 - November 30, 2017 2.03.04.05.06.07.08.09.010.011.05/1/2017 6/5/2017 7/10/2017 8/14/2017 9/18/2017 10/23/2017 11/27/2017Dissolved Oxygen, mg/lDate2017 Dissolved Oxygen - Blewett Falls DevelopmentDaily Average DO StandardInstantaneous DO StandardDaily Average DODaily Minimum DO
7 Figure 3: Daily average, minimum, and maximum water temperatures downstream of the Tillery Development (USGS Station No. 0212378405), May 1 - November 30, 2017 10.015.020.025.030.035.05/1/20176/5/20177/10/2017 8/14/2017 9/18/2017 10/23/2017 11/27/2017Temperature, OCDate2017 Water Temperature - Tillery Development Daily Average TemperatureDaily Minimum TemperatureDaily Maximum Temperature
8 Figure 4: Daily average, minimum, and maximum water temperatures downstream of the Blewett Falls Development (USGS Station No. 0212880025), May 1 - November 30, 2017 1015202530355/1/20176/5/20177/10/2017 8/14/2017 9/18/2017 10/23/2017 11/27/2017Temperature, oCDate2017 Water Temperature, Blewett Falls Development Daily Average TemperatureDaily Minimum TemperatureDaily Maximum Temperature
9
Table 1: Daily average, minimum, and maximum DO and water temperature downstream of the Tillery
Development (USGS Station No. 0212378405) May 1 - November 30, 2017
Table 1: Tillery Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
5/1/2017 17.4 17.2 18.0 92 8.6 8.1 8.9 92
5/2/2017 18.2 17.2 19.0 96 9.0 8.8 9.4 96
5/3/2017 19.2 18.4 22.7 96 9.0 8.4 10.6 96
5/4/2017 18.3 17.8 18.8 96 8.1 7.4 9.2 96
5/5/2017 18.4 17.6 18.8 96 7.9 7.4 8.4 96
5/6/2017 19.1 18.3 19.7 96 8.3 7.4 8.8 96
5/7/2017 19.0 18.2 19.4 96 8.0 7.4 8.4 96
5/8/2017 18.9 18.0 19.6 96 7.9 7.1 8.5 96
5/9/2017 18.7 18.4 18.9 96 7.6 7.2 7.9 96
5/10/2017 18.8 18.3 19.2 96 7.7 6.7 8.1 96
5/11/2017 19.1 18.5 20.5 96 7.9 6.9 9.6 96
5/12/2017 19.2 18.8 19.9 96 7.8 7.0 9.2 96
5/13/2017 20.1 18.8 22.7 96 8.3 7.0 10.0 96
5/14/2017 20.5 19.0 23.8 96 8.3 6.8 10.5 96
5/15/2017 20.6 18.8 24.2 96 8.5 6.5 11.0 96
5/16/2017 20.2 19.6 23.8 96 7.7 6.3 11.3 96
5/17/2017 19.9 19.2 22.3 96 7.3 6.1 11.1 96
5/18/2017 19.7 19.2 22.2 96 7.4 6.0 11.6 96
5/19/2017 20.9 19.5 24.8 96 8.2 6.2 11.8 96
5/20/2017 21.7 20.4 25.3 96 8.1 6.3 11.6 96
5/21/2017 21.7 20.2 24.5 96 7.8 5.8 11.7 96
5/22/2017 21.6 20.4 25.2 96 7.4 5.8 10.9 96
5/23/2017 21.1 20.3 22.0 96 6.7 5.9 8.9 96
5/24/2017 20.8 20.3 21.3 96 7.0 5.4 8.4 96
5/25/2017 21.5 21.4 21.7 96 7.6 6.4 8.7 96
5/26/2017 21.4 21.1 21.8 96 8.6 8.2 8.9 96
5/27/2017 21.4 20.9 21.8 96 8.5 7.0 8.9 96
5/28/2017 21.8 21.5 22.2 96 8.3 6.6 9.0 96
5/29/2017 22.4 22.0 23.8 96 7.9 6.0 9.0 96
5/30/2017 22.6 22.0 23.4 96 7.7 5.7 8.7 96
5/31/2017 22.3 22.0 22.7 96 7.2 6.1 8.0 96
6/1/2017 22.6 22.2 23.9 96 7.2 6.1 8.7 96
6/2/2017 22.8 22.4 23.2 96 7.3 6.2 7.9 96
6/3/2017 24.0 22.6 27.3 96 7.2 5.9 8.8 96
6/4/2017 23.7 22.4 27.2 96 6.8 5.7 9.0 96
6/5/2017 23.1 22.5 24.1 96 6.6 5.9 8.5 96
6/6/2017 23.5 23.1 24.3 96 6.6 6.0 8.1 96
6/7/2017 23.7 23.1 25.4 96 6.8 5.8 8.4 96
6/8/2017 23.8 22.5 26.4 96 7.2 5.8 8.9 96
6/9/2017 24.2 23.0 27.5 96 6.9 5.7 9.0 96
6/10/2017 24.1 22.9 27.4 96 7.0 5.2 9.3 96
10

Table 1: Tillery Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
6/11/2017 23.7 22.7 26.8 96 7.1 5.8 9.3 96
6/12/2017 23.6 23.2 25.3 96 6.5 5.5 8.9 96
6/13/2017 23.6 23.1 24.2 96 6.4 5.6 8.4 96
6/14/2017 24.6 23.6 27.1 96 6.8 5.8 8.9 96
6/15/2017 24.8 23.7 27.7 96 6.6 5.6 8.7 96
6/16/2017 24.0 23.6 25.7 96 6.2 5.0 8.5 96
6/17/2017 24.5 23.8 27.0 96 6.7 5.2 8.8 96
6/18/2017 24.8 23.8 27.2 96 6.8 5.1 8.8 96
6/19/2017 24.4 23.6 26.8 96 6.7 4.5 8.9 96
6/20/2017 24.2 23.6 24.6 96 5.6 4.6 6.8 96
6/21/2017 24.6 24.4 24.9 96 5.4 4.8 6.1 96
6/22/2017 24.7 24.3 24.9 96 6.2 4.6 7.7 96
6/23/2017 25.4 24.5 27.7 96 6.9 4.8 8.5 96
6/24/2017 25.4 24.6 27.5 96 7.0 5.9 8.7 96
6/25/2017 26.0 25.5 28.1 96 6.7 6.0 8.6 96
6/26/2017 26.2 25.4 29.0 96 6.7 5.0 8.0 96
6/27/2017 26.0 24.8 29.8 94 6.6 4.9 8.0 94
6/28/2017 25.8 24.4 29.5 96 6.5 5.1 8.0 96
6/29/2017 26.1 24.3 29.7 96 6.5 4.6 8.1 96
6/30/2017 25.7 25.1 27.1 96 7.0 4.7 8.4 96
7/1/2017 25.9 25.1 29.6 96 6.8 4.5 8.6 96
7/2/2017 26.9 25.3 31.1 96 6.6 4.4 8.2 96
7/3/2017 27.0 25.5 30.4 96 6.3 5.0 8.1 96
7/4/2017 26.8 25.7 30.0 96 6.3 5.2 8.2 96
7/5/2017 26.7 26.2 29.5 96 5.8 5.0 8.0 96
7/6/2017 27.3 26.1 30.8 96 6.0 4.8 7.8 96
7/7/2017 27.2 26.2 29.8 96 6.0 4.9 8.1 96
7/8/2017 27.7 26.2 31.2 96 5.9 4.6 8.0 96
7/9/2017 27.6 26.6 30.9 96 5.8 4.5 8.0 96
7/10/2017 27.4 26.3 30.7 96 5.6 4.5 8.1 96
7/11/2017 27.2 26.2 30.3 96 6.0 3.9 8.3 96
7/12/2017 27.9 26.6 31.7 94 6.3 5.1 8.1 94
7/13/2017 27.7 27.0 31.1 96 5.8 4.9 8.2 96
7/14/2017 27.9 27.0 30.8 96 6.2 5.0 7.7 96
7/15/2017 28.3 27.4 31.5 96 5.9 4.9 7.8 96
7/16/2017 28.6 27.2 31.2 96 6.3 4.9 7.8 96
7/17/2017 27.9 26.9 31.1 96 6.4 5.0 8.0 96
7/18/2017 28.6 26.8 32.9 96 6.2 4.8 8.2 96
7/19/2017 28.0 26.9 31.3 96 6.0 4.7 7.8 96
7/20/2017 28.5 27.6 32.0 96 5.8 4.6 7.5 96
7/21/2017 28.7 27.6 32.1 96 5.9 4.6 7.5 96
7/22/2017 28.4 27.4 30.8 96 5.8 4.1 7.7 96
7/23/2017 28.5 27.5 31.5 96 5.9 4.8 7.9 96
7/24/2017 28.5 27.5 31.6 96 5.8 4.5 7.7 96
7/25/2017 28.8 27.6 31.3 96 5.8 4.4 7.7 96
7/26/2017 28.9 27.8 31.0 96 6.2 4.7 7.4 96
11

Table 1: Tillery Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
7/27/2017 28.5 27.6 31.1 96 5.8 4.5 7.5 96
7/28/2017 28.7 27.7 30.6 96 6.2 4.6 7.5 96
7/29/2017 29.3 28.3 31.5 96 6.2 4.6 7.4 96
7/30/2017 28.8 27.4 31.6 96 5.5 4.2 7.2 96
7/31/2017 28.5 26.8 31.6 96 5.6 4.3 7.1 96
8/1/2017 28.4 26.6 31.7 96 5.7 4.4 7.3 96
8/2/2017 28.3 26.9 31.2 96 5.8 4.6 7.6 96
8/3/2017 28.3 27.3 31.2 96 5.6 4.4 7.5 96
8/4/2017 27.9 26.6 30.0 96 5.7 4.5 7.5 96
8/5/2017 28.8 26.8 31.7 96 5.8 4.4 7.7 96
8/6/2017 28.5 26.9 32.0 96 5.9 4.4 7.6 96
8/7/2017 28.3 27.4 30.7 96 5.7 4.4 7.7 96
8/8/2017 27.9 27.1 29.9 96 5.7 4.6 8.0 96
8/9/2017 28.0 26.8 30.7 96 5.8 4.5 7.9 96
8/10/2017 28.1 26.5 31.6 96 5.8 4.5 7.9 96
8/11/2017 28.1 26.8 31.2 96 6.1 4.5 8.1 96
8/12/2017 28.9 27.8 31.2 96 6.5 4.7 7.9 96
8/13/2017 28.8 27.4 32.1 96 5.9 4.4 7.8 96
8/14/2017 28.8 27.5 31.4 96 6.0 4.2 7.7 96
8/15/2017 29.1 27.9 32.3 96 5.7 4.1 7.5 96
8/16/2017 28.8 28.1 29.7 96 6.4 4.4 7.6 96
8/17/2017 29.1 28.3 30.7 96 6.7 5.1 7.4 96
8/18/2017 28.9 27.8 32.6 96 5.9 4.5 7.6 96
8/19/2017 29.2 28.2 32.4 96 6.1 4.5 7.7 96
8/20/2017 29.6 28.2 33.1 96 6.0 4.4 7.6 96
8/21/2017 29.3 28.0 32.2 96 5.9 4.4 7.4 96
8/22/2017 29.0 27.7 32.4 96 6.1 4.6 7.9 96
8/23/2017 29.0 27.9 31.2 96 6.3 4.4 7.9 96
8/24/2017 28.8 28.0 30.3 96 5.8 4.3 7.5 96
8/25/2017 28.8 27.6 31.0 96 5.9 4.5 7.9 96
8/26/2017 29.1 27.8 31.0 96 6.1 4.4 7.8 96
8/27/2017 28.2 26.8 31.1 96 5.8 4.2 8.2 96
8/28/2017 27.4 26.1 29.2 96 5.6 4.4 8.2 96
8/29/2017 26.6 25.9 27.8 96 5.8 4.5 8.1 96
8/30/2017 27.5 25.6 30.6 96 6.1 4.8 8.1 96
8/31/2017 27.2 26.6 28.4 96 5.9 4.6 8.3 96
9/1/2017 27.3 26.4 29.8 96 6.3 4.8 8.3 96
9/2/2017 27.2 26.0 30.2 96 6.5 5.0 8.6 96
9/3/2017 27.1 25.6 30.6 96 6.4 5.0 8.5 96
9/4/2017 27.0 25.3 30.2 96 6.6 5.0 8.9 96
9/5/2017 26.7 25.2 30.0 96 6.2 5.1 8.9 96
9/6/2017 26.2 25.3 27.2 96 5.7 5.0 7.5 96
9/7/2017 26.0 24.1 28.9 96 7.0 5.3 8.7 96
9/8/2017 26.0 24.1 29.1 96 6.7 5.4 8.8 96
9/9/2017 26.1 24.8 28.5 96 6.9 4.8 8.9 96
9/10/2017 24.8 23.7 26.0 96 6.8 4.8 9.4 96
12

Table 1: Tillery Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
9/11/2017 24.0 23.0 25.3 96 6.4 5.6 7.9 96
9/12/2017 24.5 23.5 26.9 96 6.5 4.8 8.8 96
9/13/2017 24.6 22.9 27.5 96 6.6 4.6 9.2 96
9/14/2017 24.4 23.4 27.3 96 6.4 4.7 9.5 96
9/15/2017 24.7 23.1 28.8 96 6.5 4.7 9.4 96
9/16/2017 24.6 23.2 27.8 96 6.4 4.7 9.2 96
9/17/2017 24.9 23.5 28.1 96 6.4 4.6 9.0 96
9/18/2017 24.9 23.5 28.3 95 6.4 4.6 9.2 95
9/19/2017 25.1 23.5 28.9 96 6.3 4.5 9.3 96
9/20/2017 25.2 23.6 28.6 96 6.5 4.6 9.3 96
9/21/2017 25.5 23.9 29.3 96 6.7 5.0 9.1 96
9/22/2017 25.5 24.1 29.1 96 6.6 5.3 9.4 96
9/23/2017 25.5 24.3 29.1 96 6.4 5.1 9.4 96
9/24/2017 25.6 24.4 28.2 96 6.6 5.1 9.3 96
9/25/2017 25.5 24.7 28.3 96 6.5 5.1 9.5 96
9/26/2017 25.6 24.6 28.0 96 6.3 5.1 8.8 96
9/27/2017 25.9 25.0 29.5 96 6.2 5.1 8.8 96
9/28/2017 25.9 24.6 29.3 96 6.1 4.7 8.6 96
9/29/2017 25.5 24.5 28.5 96 6.2 4.3 9.1 96
9/30/2017 25.1 23.8 27.6 96 6.5 4.9 9.0 96
10/1/2017 24.3 22.7 26.8 96 6.9 5.1 9.4 96
10/2/2017 24.2 21.9 27.7 96 6.7 4.7 9.6 96
10/3/2017 24.2 22.1 27.2 96 7.2 4.7 9.8 96
10/4/2017 24.2 22.3 27.3 96 7.3 4.4 9.9 96
10/5/2017 24.1 22.4 27.8 96 6.9 5.1 9.9 96
10/6/2017 23.8 22.3 27.4 96 6.7 4.8 9.6 96
10/7/2017 23.8 22.8 25.4 96 6.7 5.0 9.2 96
10/8/2017 24.5 23.8 25.9 96 7.0 5.3 9.5 96
10/9/2017 24.7 23.8 26.6 96 7.2 5.0 9.7 96
10/10/2017 24.7 23.9 26.1 96 6.8 4.8 9.4 96
10/11/2017 24.5 23.9 27.8 96 6.3 5.0 9.7 96
10/12/2017 24.5 23.6 26.7 96 6.5 5.1 9.3 96
10/13/2017 24.0 23.6 24.6 96 6.5 5.4 8.7 96
10/14/2017 23.7 22.9 25.9 96 6.4 5.4 8.5 96
10/15/2017 24.0 22.8 26.9 96 6.8 4.9 9.5 96
10/16/2017 23.2 22.0 24.0 96 7.2 5.4 9.4 96
10/17/2017 22.4 20.5 24.6 96 7.7 6.2 9.9 96
10/18/2017 22.7 20.3 25.1 96 7.6 6.3 9.7 96
10/19/2017 22.0 19.9 25.1 96 7.8 6.1 10.0 96
10/20/2017 22.1 20.1 25.2 96 7.7 6.0 10.1 96
10/21/2017 22.3 20.4 25.1 96 7.7 5.8 10.3 96
10/22/2017 22.3 20.6 24.8 96 7.6 5.6 10.2 96
10/23/2017 22.1 21.8 22.6 96 7.2 6.0 9.0 96
10/24/2017 22.0 20.8 24.2 96 7.7 5.8 9.9 96
10/25/2017 20.9 19.5 23.3 96 8.1 6.5 10.2 96
10/26/2017 20.8 19.2 22.9 96 8.0 6.7 9.8 96
13

Table 1: Tillery Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
10/27/2017 20.9 19.0 21.9 96 7.4 6.7 8.5 96
10/28/2017 20.6 19.1 22.6 96 8.1 6.5 10.1 96
10/29/2017 20.6 18.6 21.9 96 7.9 6.4 10.0 96
10/30/2017 19.3 17.6 21.4 96 8.2 6.9 10.5 96
10/31/2017 19.9 17.8 22.3 96 7.9 6.8 10.1 96
11/1/2017 20.1 18.2 22.4 96 8.1 6.6 10.5 96
11/2/2017 20.1 19.1 22.6 96 8.2 6.6 10.7 96
11/3/2017 19.8 18.4 22.6 96 8.3 6.5 10.9 96
11/4/2017 19.8 18.8 21.5 96 8.5 6.6 11.0 96
11/5/2017
Change to
Eastern
Standard
Time (EST) 19.6 19.1 20.6 100 8.3 6.8 10.9 100
11/6/2017 19.5 18.9 21.4 96 8.0 6.7 11.0 96
11/7/2017 19.7 19.1 20.2 96 8.0 6.7 9.9 96
11/8/2017 18.7 17.9 19.5 96 7.9 7.1 9.5 96
11/9/2017 18.3 17.5 19.0 96 8.1 7.0 10.1 96
11/10/2017 18.6 17.0 20.2 96 8.4 7.3 10.4 96
11/11/2017 17.8 15.7 19.2 96 8.6 7.4 11.0 96
11/12/2017 17.3 16.0 18.0 96 8.5 7.4 10.6 96
11/13/2017 17.4 16.2 19.2 96 8.8 7.5 11.1 96
11/14/2017 16.9 15.6 18.3 96 9.1 7.4 11.5 96
11/15/2017 16.7 14.9 18.3 96 9.0 7.6 11.4 96
11/16/2017 16.5 14.9 18.7 96 8.9 7.6 11.3 96
11/17/2017 16.0 14.4 18.4 96 9.4 8.1 11.8 96
11/18/2017 16.0 14.2 17.9 96 9.5 7.9 11.7 96
11/19/2017 15.6 14.3 17.1 96 9.7 8.5 11.8 96
11/20/2017 15.3 13.6 17.6 96 9.6 8.3 11.9 96
11/21/2017 15.2 13.5 16.7 96 9.7 8.7 12.1 96
11/22/2017 15.5 14.4 17.0 96 9.9 8.4 12.1 96
11/23/2017 14.6 13.4 16.3 96 9.9 8.7 12.3 96
11/24/2017 14.6 13.0 16.9 96 10.0 8.7 12.2 96
11/25/2017 14.5 13.0 16.4 96 10.0 8.6 12.4 96
11/26/2017 14.3 13.0 16.3 96 10.1 8.4 12.5 96
11/27/2017 14.2 12.7 16.5 96 9.8 8.8 12.2 96
11/28/2017 14.2 12.5 16.5 96 10.2 8.6 12.7 96
11/29/2017 14.4 13.1 16.8 96 10.2 8.4 12.8 96
11/30/2017 14.2 12.6 16.4 96 10.2 8.5 12.7 96

14

Table 2: Daily average, minimum, and maximum DO (mg/L) and water temperature (oC) measured
downstream of the Blewett Falls Development (USGS Station No. 0212880025) May 1 - November 30,
2017

Table 2: Blewett Falls Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
5/1/2017 0 0
5/2/2017 0 0
5/3/2017 0 0
5/4/2017 0 0
5/5/2017 0 0
5/6/2017 0 0
5/7/2017 0 0
5/8/2017 0 0
5/9/2017 0 0
5/10/2017 19.8 19.4 20.2 48 7.9 7.6 8.3 48
5/11/2017 20.3 19.5 21.2 96 7.6 7.2 8.3 96
5/12/2017 20.3 20.0 20.5 96 7.1 6.9 7.4 96
5/13/2017 20.2 19.9 20.4 96 7.4 7.2 7.7 96
5/14/2017 20.3 19.7 21.5 96 7.9 7.3 9.1 96
5/15/2017 20.8 19.8 22.1 96 7.7 6.7 9.3 96
5/16/2017 21.8 21.3 22.6 96 7.8 7.1 8.6 96
5/17/2017 22.5 21.6 23.5 96 7.9 7.1 9.0 96
5/18/2017 23.4 23.0 23.8 96 8.2 7.8 8.7 96
5/19/2017 23.1 22.6 23.5 96 8.1 7.6 8.6 96
5/20/2017 23.2 22.5 24.7 96 7.8 6.9 9.3 96
5/21/2017 23.1 22.7 23.8 96 7.2 6.9 7.8 96
5/22/2017 24.4 23.5 25.2 96 8.2 7.2 9.1 96
5/23/2017 23.6 23.2 23.9 96 7.7 7.1 8.1 96
5/24/2017 22.1 21.2 23.2 96 6.5 6.0 7.2 96
5/25/2017 21.2 20.8 21.7 96 7.0 6.1 7.3 96
5/26/2017 21.4 21.0 21.9 96 7.2 6.9 7.7 96
5/27/2017 21.8 21.5 22.2 96 7.6 7.4 7.8 96
5/28/2017 22.5 21.6 23.4 96 7.6 7.2 8.2 96
5/29/2017 23.3 22.5 24.3 96 7.8 7.3 8.4 96
5/30/2017 23.7 23.2 24.5 96 7.7 7.3 8.3 96
5/31/2017 23.7 23.4 24.3 96 7.9 7.4 8.7 96
6/1/2017 23.8 23.4 24.5 96 7.5 7.1 8.1 96
6/2/2017 24.1 23.5 25.0 96 7.5 6.9 8.8 96
6/3/2017 24.5 24.1 25.4 96 7.2 6.7 8.0 96
6/4/2017 24.4 24.0 25.0 96 7.0 6.1 8.3 96
6/5/2017 24.4 24.1 24.8 96 6.8 6.2 7.6 96
6/6/2017 23.9 23.6 24.6 96 6.2 5.9 6.6 96
6/7/2017 23.8 23.6 24.0 96 6.5 6.0 6.7 96
6/8/2017 23.5 23.1 23.8 96 6.5 6.3 7.0 96
6/9/2017 23.9 23.3 24.8 96 7.1 6.5 7.8 96
6/10/2017 23.9 23.2 24.7 96 6.8 5.7 8.1 96
15

Table 2: Blewett Falls Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
6/11/2017 24.7 23.9 25.8 96 7.4 5.8 9.4 96
6/12/2017 25.7 25.0 26.3 96 7.2 6.3 8.1 96
6/13/2017 26.1 25.8 26.7 96 7.7 6.9 9.1 96
6/14/2017 25.8 25.3 26.5 96 7.9 7.2 9.0 96
6/15/2017 25.7 25.0 26.8 96 7.1 6.4 8.0 96
6/16/2017 26.2 25.5 26.6 96 7.1 6.1 7.8 96
6/17/2017 26.5 26.0 26.8 96 6.2 5.2 6.8 96
6/18/2017 26.4 25.8 26.8 96 5.8 5.1 6.5 96
6/19/2017 26.4 25.8 27.2 96 6.3 5.6 6.9 96
6/20/2017 27.1 26.6 27.3 96 6.7 5.9 7.4 96
6/21/2017 25.3 24.9 26.7 96 6.4 6.0 7.1 96
6/22/2017 24.9 24.8 25.2 96 6.0 5.6 6.4 96
6/23/2017 24.8 24.6 25.4 96 5.6 5.4 6.0 96
6/24/2017 25.7 24.7 26.8 96 6.4 5.5 7.5 96
6/25/2017 26.5 25.9 27.2 96 6.7 6.0 7.5 96
6/26/2017 26.9 26.6 27.4 96 7.1 6.5 8.5 96
6/27/2017 27.0 26.6 27.6 96 7.5 6.4 9.5 96
6/28/2017 27.0 26.8 27.2 96 7.4 7.0 8.2 96
6/29/2017 26.5 26.2 26.9 96 6.8 5.9 7.8 96
6/30/2017 26.6 26.2 27.4 96 6.5 5.5 8.6 96
7/1/2017 26.8 26.3 27.8 96 6.2 4.9 8.0 96
7/2/2017 27.8 27.0 28.8 96 6.8 5.9 7.7 96
7/3/2017 27.5 27.2 28.0 96 5.8 5.0 6.9 96
7/4/2017 28.1 27.4 28.9 96 6.7 5.4 7.7 96
7/5/2017 28.7 28.2 29.6 96 7.1 5.9 9.1 96
7/6/2017 28.6 28.1 29.3 96 6.9 5.5 8.3 96
7/7/2017 28.9 28.4 29.7 96 7.0 6.0 9.1 96
7/8/2017 28.9 28.4 29.7 96 7.0 5.8 9.0 96
7/9/2017 28.9 28.7 29.3 96 6.9 6.0 7.8 96
7/10/2017 28.7 28.4 29.2 96 6.3 5.2 8.0 96
7/11/2017 28.7 28.4 29.0 96 5.9 5.0 6.6 96
7/12/2017 29.0 28.6 29.6 95 6.5 5.3 8.1 95
7/13/2017 28.9 28.6 29.6 96 6.0 5.1 7.3 96
7/14/2017 29.4 28.6 30.5 96 6.9 4.9 9.1 96
7/15/2017 30.0 29.4 31.0 96 7.1 5.9 9.0 96
7/16/2017 29.7 29.3 30.1 96 6.3 5.2 7.2 96
7/17/2017 29.4 29.3 29.7 96 5.8 5.1 7.2 96
7/18/2017 29.6 29.3 30.1 96 6.4 5.5 7.8 96
7/19/2017 29.6 29.2 30.2 96 6.7 5.8 8.0 96
7/20/2017 29.6 29.3 30.0 96 6.4 5.2 7.5 96
7/21/2017 29.8 29.4 30.7 96 6.5 5.3 8.6 96
7/22/2017 30.0 29.7 30.4 96 6.1 5.2 7.1 96
7/23/2017 30.2 29.8 30.9 96 6.2 5.1 7.5 96
7/24/2017 30.0 29.8 30.2 96 5.7 4.8 6.2 96
7/25/2017 30.1 29.7 30.8 96 6.0 4.9 7.2 96
7/26/2017 29.9 29.8 30.1 96 5.7 5.0 6.1 96
16

Table 2: Blewett Falls Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
7/27/2017 29.8 29.6 30.0 96 5.9 5.2 6.6 96
7/28/2017 29.8 29.5 30.1 96 6.7 5.6 7.6 96
7/29/2017 30.0 29.7 30.4 96 7.0 5.3 8.6 96
7/30/2017 29.6 29.3 30.0 96 7.0 6.4 7.7 96
7/31/2017 29.2 28.9 29.6 96 6.6 6.0 7.3 96
8/1/2017 28.7 28.5 29.0 96 6.1 5.7 7.2 96
8/2/2017 28.4 28.1 29.0 96 6.5 5.7 8.1 96
8/3/2017 28.3 28.1 28.4 96 6.0 4.8 6.6 96
8/4/2017 28.3 28.0 28.8 96 6.9 5.7 8.2 96
8/5/2017 28.7 28.3 29.2 96 7.1 6.0 8.1 96
8/6/2017 28.6 28.3 29.1 96 6.3 5.1 7.9 96
8/7/2017 28.5 28.2 29.0 96 6.0 4.2 7.6 96
8/8/2017 28.6 28.4 28.8 96 6.3 5.1 7.6 96
8/9/2017 28.5 28.3 28.7 96 5.9 5.2 6.7 96
8/10/2017 28.3 28.1 28.5 96 5.8 5.4 6.3 96
8/11/2017 28.2 28.0 28.4 96 6.0 5.3 7.2 96
8/12/2017 28.4 28.1 28.8 96 5.9 5.0 6.8 96
8/13/2017 28.8 28.4 29.7 96 6.3 5.4 8.5 96
8/14/2017 28.9 28.4 29.6 96 6.1 5.3 7.7 96
8/15/2017 29.7 28.8 31.1 96 7.1 5.1 10.1 96
8/16/2017 30.0 29.5 30.4 96 6.7 5.2 8.2 96
8/17/2017 29.5 28.7 29.9 96 5.7 5.1 6.5 96
8/18/2017 29.0 28.5 29.9 96 6.3 5.4 8.1 96
8/19/2017 29.6 29.2 30.4 96 6.8 6.0 8.7 96
8/20/2017 29.8 29.3 30.5 96 6.6 5.0 8.2 96
8/21/2017 29.5 29.4 29.8 96 5.8 5.1 6.2 96
8/22/2017 29.8 29.5 30.1 96 6.1 4.8 7.2 96
8/23/2017 30.2 29.7 31.0 96 6.5 4.9 8.4 96
8/24/2017 30.0 29.7 30.4 96 5.9 5.1 6.7 96
8/25/2017 29.6 29.4 29.8 96 6.0 5.3 6.5 96
8/26/2017 29.3 29.1 29.5 96 6.0 5.3 6.7 96
8/27/2017 29.0 28.7 29.1 96 5.7 5.3 6.1 96
8/28/2017 28.4 28.2 28.7 96 6.1 5.6 6.5 96
8/29/2017 27.6 27.0 28.1 96 6.2 5.8 6.6 96
8/30/2017 26.7 26.3 27.0 96 6.2 5.5 6.7 96
8/31/2017 26.2 26.0 26.6 96 6.0 5.4 7.4 96
9/1/2017 26.1 26.0 26.3 96 5.8 5.4 6.6 96
9/2/2017 26.2 26.0 26.6 96 6.3 5.3 7.6 96
9/3/2017 26.7 26.3 27.4 96 7.4 6.2 8.6 96
9/4/2017 26.8 26.5 27.0 96 7.3 6.7 8.0 96
9/5/2017 26.7 26.4 27.0 96 6.3 5.5 7.4 96
9/6/2017 26.9 26.8 27.1 95 6.8 5.8 7.7 94
9/7/2017 26.7 26.5 27.0 96 7.3 6.8 7.9 96
9/8/2017 26.2 25.9 26.6 96 6.9 6.6 7.2 96
9/9/2017 25.6 25.1 26.0 96 7.1 6.6 7.5 96
9/10/2017 24.9 24.5 25.1 96 7.4 7.1 7.7 96
17

Table 2: Blewett Falls Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
9/11/2017 23.9 23.3 24.5 96 7.4 7.2 7.5 96
9/12/2017 22.9 22.5 23.3 96 7.4 7.0 7.5 96
9/13/2017 22.5 22.4 22.7 96 7.3 7.2 7.6 96
9/14/2017 22.8 22.4 23.6 96 7.7 6.9 8.9 96
9/15/2017 24.0 23.4 24.8 96 8.8 7.9 9.9 96
9/16/2017 24.6 24.1 24.9 96 9.0 8.2 9.8 96
9/17/2017 24.9 24.4 25.4 96 9.2 8.3 10.1 96
9/18/2017 25.1 24.7 25.8 96 9.1 8.4 10.3 96
9/19/2017 25.4 24.8 26.2 96 8.7 7.9 10.1 96
9/20/2017 25.4 24.9 26.0 96 7.7 6.7 8.9 96
9/21/2017 25.4 25.0 26.4 96 7.4 6.1 9.3 96
9/22/2017 25.7 25.3 26.1 96 7.7 6.7 8.9 96
9/23/2017 26.0 25.6 26.5 96 7.8 6.5 9.3 96
9/24/2017 26.3 25.8 26.8 96 8.4 6.8 9.6 96
9/25/2017 26.2 26.0 26.5 96 7.6 6.6 8.7 96
9/26/2017 26.3 26.1 26.6 96 7.8 6.9 8.6 96
9/27/2017 26.5 26.2 27.0 96 8.0 7.0 9.4 96
9/28/2017 26.5 26.2 27.0 96 7.9 7.2 9.1 96
9/29/2017 26.2 26.1 26.6 96 7.4 6.6 8.1 96
9/30/2017 26.1 25.9 26.3 96 7.9 7.3 8.4 96
10/1/2017 25.4 24.8 25.9 96 7.5 7.1 8.0 96
10/2/2017 24.6 24.3 24.8 96 7.3 7.0 7.6 96
10/3/2017 24.1 23.9 24.3 96 7.5 6.9 8.0 96
10/4/2017 24.0 23.8 24.2 96 7.8 7.4 8.4 96
10/5/2017 23.8 23.5 24.0 96 7.6 7.1 8.1 96
10/6/2017 23.5 23.2 24.0 96 7.7 6.8 9.0 96
10/7/2017 23.4 23.3 23.6 96 7.5 6.5 8.5 96
10/8/2017 23.6 23.4 23.8 96 6.5 5.4 7.4 96
10/9/2017 24.3 23.4 25.2 96 6.9 5.5 8.6 96
10/10/2017 24.9 24.5 25.5 96 7.5 6.7 8.4 96
10/11/2017 25.2 25.0 25.5 96 7.0 6.4 7.5 96
10/12/2017 25.5 25.2 26.1 96 6.9 6.1 8.3 96
10/13/2017 25.9 25.7 26.1 96 7.5 6.8 8.3 96
10/14/2017 25.3 25.0 25.7 96 6.4 5.8 7.4 96
10/15/2017 24.8 24.5 25.0 96 6.1 5.8 6.5 96
10/16/2017 24.1 23.8 24.5 96 6.5 6.0 7.5 96
10/17/2017 23.2 22.8 23.8 96 7.4 7.1 7.6 96
10/18/2017 22.5 21.9 22.8 96 7.3 7.0 7.8 96
10/19/2017 21.7 21.4 22.0 96 8.0 7.3 9.1 96
10/20/2017 21.2 20.9 21.6 96 8.1 7.6 9.0 96
10/21/2017 20.7 20.6 21.0 96 7.8 7.3 8.4 96
10/22/2017 20.4 20.2 20.6 96 7.9 7.6 8.3 96
10/23/2017 20.2 20.1 20.4 96 7.3 6.8 8.0 96
10/24/2017 20.5 20.3 20.6 96 8.2 7.7 8.6 96
10/25/2017 20.4 20.2 20.6 96 8.7 8.2 9.4 96
10/26/2017 20.2 20.0 20.4 96 8.9 8.4 9.6 96
18

Table 2: Blewett Falls Development
Date Water Temperature oC Dissolved Oxygen, mg/L
Average Minimum Maximum N Average Minimum Maximum N
10/27/2017 19.7 19.4 20.0 96 8.5 8.1 8.9 96
10/28/2017 19.3 18.9 19.4 96 7.9 7.3 8.2 96
10/29/2017 19.0 18.8 19.2 96 7.9 7.4 8.7 96
10/30/2017 18.5 18.2 18.9 96 8.7 8.3 9.2 96
10/31/2017 18.0 17.8 18.2 96 8.7 8.5 9.1 96
11/1/2017 17.7 17.5 17.8 96 8.3 8.1 8.6 96
11/2/2017 17.9 17.6 18.4 96 8.6 8.2 9.2 96
11/3/2017 18.5 18.1 19.0 96 8.4 7.9 8.8 96
11/4/2017 19.0 18.6 19.3 96 8.4 7.6 9.0 96
11/5/2017
Change to
Eastern
Standard
Time (EST) 19.6 19.1 20.2 100 9.1 8.3 9.8 100
11/6/2017 19.6 19.3 19.8 96 8.4 7.6 9.2 96
11/7/2017 19.7 19.4 20.1 96 8.0 7.1 9.0 96
11/8/2017 19.5 18.9 20.1 96 8.4 8.2 9.0 96
11/9/2017 18.4 17.9 18.9 96 8.2 8.1 8.3 96
11/10/2017 17.5 17.1 17.9 96 8.3 8.2 8.5 96
11/11/2017 16.6 16.2 17.1 96 8.5 8.4 8.8 96
11/12/2017 15.8 15.6 16.2 96 8.8 8.7 9.0 96
11/13/2017 15.5 15.5 15.6 96 9.0 8.8 9.1 96
11/14/2017 15.3 15.2 15.5 96 9.1 8.9 9.2 96
11/15/2017 15.2 15.1 15.2 96 9.1 9.0 9.2 96
11/16/2017 15.1 14.9 15.4 96 9.1 8.9 9.4 96
11/17/2017 14.8 14.6 15.0 96 9.1 8.9 9.2 96
11/18/2017 14.5 14.4 14.6 96 9.1 9.0 9.2 96
11/19/2017 14.5 14.3 14.7 96 9.4 9.1 9.7 96
11/20/2017 14.2 14.0 14.5 96 9.7 9.6 10.0 96
11/21/2017 13.9 13.7 14.1 96 9.7 9.6 9.8 96
11/22/2017 13.9 13.7 14.2 96 10.0 9.7 10.2 96
11/23/2017 13.7 13.4 14.0 96 10.0 9.7 10.1 96
11/24/2017 13.4 13.2 13.5 96 9.9 9.6 10.1 96
11/25/2017 13.0 12.9 13.2 96 9.7 9.5 9.9 96
11/26/2017 13.0 12.8 13.1 96 9.8 9.4 10.1 96
11/27/2017 12.7 12.4 12.9 96 10.1 9.9 10.4 96
11/28/2017 12.3 12.2 12.5 96 9.8 9.6 10.1 96
11/29/2017 12.1 12.0 12.4 96 9.8 9.7 10.0 96
11/30/2017 12.2 12.0 12.7 96 10.2 9.7 10.9 96

19

Table 3: Maintenance/calibration dates for USGS Water Quality Stations at the Tillery and Blewett
Falls Developments during the 2017 Water Quality Monitoring Season

Tillery Development: USGS Station No. 0212378405
Date Time Explanation
4/20/2017 10:21 EDT Sonde deployment
6/27/2017 09:51 EDT Calibration (sonde swap)
7/12/2017 11:10 EDT Calibration (sonde swap)
9/18/2017 11:54 EDT Calibration (sonde swap)
12/4/2017 10:40 EST Calibration check and sonde removal
Blewett Falls Development: USGS Station No. 0212880025
Date Time Explanation
4/21/2017 10:33 EDT Sonde deployment
5/10/2017 11:33 EDT Cleaned & calibration check
7/12/2017 12:58 EDT Calibration (sonde swap)
9/6/2017 10:29 EDT Calibration (sonde swap)
12/5/2017 10:40 EST Calibration check and sonde removal