20030147 Ver 2_2019 Water Quality Compliance Report_20200402

WATER STRATEGY, HYDRO
LICENSING AND LAKE SERVICES

Duke Energy Corporation
526 South Church Street
Charlotte, NC 28202

April 2, 2020

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)
2019 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 2019 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

cc w/enclosure: Paul Wojoski, NCDEQ
Chonticha McDaniel, NCDEQ
Fred Tarver, NCDEQ

cc w/o enclosure: Tami Styer
Lynne Dunn
David Scott
Phil Fragapane

Yadkin-Pee Dee Hydroelectric Project

FERC Project No. 2206

2019 Water Quality Compliance Report

Duke Energy Progress, LLC

April 2020

ii

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1

Yadkin-Pee Dee Hydroelectric Project
FERC Project No. 2206

2019 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 2019. 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, 2019, 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, 2019:
• 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
2019.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 2019 season were 99.8% for the USGS station at Blewett Falls Development (No.
0212880025) and 99.7% for the USGS station at Tillery Development (No. 0212378405).

For both water quality stations, 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.

4.0 Compliance with Water Quality Standards

3

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

Daily Average DO Standard
During the monitoring period (May 1 - November 30, 2019), the Tillery Development daily average DO
concentrations in the tailwaters remained above the state standard of 5.0 mg/L (see Figure 1).

During Hurricane Florence in September 2018, Blewett Falls Hydro Station was flooded and has been out
of service since that time. The Station is currently scheduled to return to service in June 2020. Duke
Energy notified the Commission of the impacts of this storm on October 5 and October 19, 2018, and
FERC acknowledged these notifications on October 29, 2018. Duke Energy notified the Commission
again on February 7 and March 1, 2019, of the potential deviations from license compliance requirements
that could occur as a result of inoperable generating units. FERC acknowledged these notifications on
March 20, 2019.
In the notification to the Commission, Duke Energy explained that the Blewett Falls Station enhances DO
levels by utilizing vent valves to aerate the flow release while the generating units are operating. Without
operable units, providing hydro unit aeration to meet the DO standard at Blewett Falls is not possible.
Duke Energy also explained that water spilling over the spillway should keep the DO levels above the
standard, but the flow may not reach the DO monitoring equipment in the tailrace. This could result in
low DO readings if the water in the tailrace is not being mixed with the spillway flow. Without the
generating units, there is no means of enhancing the DO levels in the tailrace. FERC agreed with the
potential for a large number of license deviations with regards to water quality standards and granted
Duke Energy's request to report deviations from the dissolved oxygen standard in the annual water quality
report as opposed to within five days of each deviation as required by the NC WQC or ten days of each
deviation as required by the license.

4

During the monitoring period (May 1 - November 30, 2019), the Blewett Falls Development experienced
multiple days where the daily average DO concentrations in the tailwaters was below the state standard of
5.0 mg/L (see Figure 2). Most of these occurred in August 2019.

Instantaneous DO Standard
During the 2019 monitoring season, the instantaneous DO concentrations in the tailwaters of the Tillery
Development did not fall below the 4.0 mg/L standard (see Figure 1).

At the Blewett Falls Development, there were numerous deviations from the instantaneous DO standard
for the same reasons as described above. Most of these deviations occurred in the July - August
timeframe (see Figure 2).

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, 2019

0.0
2.0
4.0
6.0
8.0
10.0
12.0
5/1/2019 5/31/2019 6/30/2019 7/30/2019 8/29/2019 9/28/2019 10/28/2019 11/27/2019
2019 Tillery Dissolved Oxygen Average DO
Minimum Daily DO
Average Daily DO Standard
Instantaneous DO Standard
6

Figure 2: Daily average, and minimum DO concentrations downstream of the Blewett Falls Development (USGS Station No. 0212880025), May
1 - November 30, 2019
0.0
2.0
4.0
6.0
8.0
10.0
12.0
5/1/2019 5/31/2019 6/30/2019 7/30/2019 8/29/2019 9/28/2019 10/28/2019 11/27/2019
2019 Blewett Falls Dissolved Oxygen Average DO
Minimum Daily DO
Average Daily DO Standard
Instantaneous DO Standard
7

Figure 3: Daily average, minimum, and maximum water temperatures downstream of the Tillery Development (USGS Station No. 0212378405),
May 1 - November 30, 2019
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
5/1/2019 5/31/2019 6/30/2019 7/30/2019 8/29/2019 9/28/2019 10/28/2019 11/27/2019
2019 Tillery Water Temperature Daily Average Daily Maximum Daily Minimum
8

Figure 4: Daily average, minimum, and maximum water temperatures downstream of the Blewett Falls Development (USGS Station No.
0212880025), May 1 - November 30, 2019
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
5/1/2019 5/31/2019 6/30/2019 7/30/2019 8/29/2019 9/28/2019 10/28/2019 11/27/2019
2019 Blewett Falls Water Temperature Daily Average Daily Maximum Daily Minimum
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, 2019

Table 1: Tillery Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
5/1/2019 18.6 18.4 18.8 7.8 7.4 8.1 96
5/2/2019 19.7 18.4 24.0 8.8 6.8 12.7 96
5/3/2019 19.7 18.7 23.7 8.5 6.6 12.7 96
5/4/2019 19.8 19.0 23.7 8.1 6.6 12.1 96
5/5/2019 19.4 18.9 20.8 7.9 6.8 11.4 95
5/6/2019 20.5 19.6 24.8 8.3 6.8 12.0 95
5/7/2019 19.8 19.4 20.4 7.6 7.0 8.7 96
5/8/2019 19.6 19.4 19.8 7.2 6.9 7.4 95
5/9/2019 19.7 19.5 19.9 7.3 7.0 7.6 95
5/10/2019 20.3 19.7 21.6 7.9 6.5 11.0 96
5/11/2019 20.8 20.2 23.0 7.9 6.9 11.0 96
5/12/2019 20.4 19.8 21.4 7.8 6.5 10.2 95
5/13/2019 21.2 19.9 24.1 8.3 6.5 10.9 95
5/14/2019 21.3 20.4 24.2 8.0 6.6 10.5 96
5/15/2019 21.4 20.6 25.1 8.1 6.5 10.7 96
5/16/2019 21.4 20.0 25.4 7.9 6.2 11.0 96
5/17/2019 21.2 20.2 24.4 8.0 6.4 11.3 96
5/18/2019 21.7 20.9 25.0 8.0 6.6 10.7 96
5/19/2019 21.9 20.8 26.4 7.5 6.1 10.5 96
5/20/2019 22.1 20.7 26.1 8.0 6.3 10.8 96
5/21/2019 22.8 21.6 27.5 7.7 6.1 10.2 95
5/22/2019 22.9 21.7 26.2 7.7 6.0 10.2 95
5/23/2019 22.5 21.8 24.9 7.5 6.2 9.9 96
5/24/2019 23.6 21.7 28.7 7.5 5.9 9.7 95
5/25/2019 24.1 22.2 27.8 7.5 5.7 9.2 94
5/26/2019 24.1 22.1 28.8 7.0 5.3 9.4 96
5/27/2019 24.6 22.6 29.3 6.8 5.2 9.1 95
5/28/2019 23.5 22.7 26.5 6.7 5.3 8.3 96
5/29/2019 23.2 22.4 25.4 6.5 5.4 8.0 96
5/30/2019 23.5 22.7 27.3 6.4 5.1 8.2 96
5/31/2019 23.5 22.8 25.4 6.1 4.9 7.7 96
6/1/2019 24.3 23.4 27.3 6.7 4.4 8.2 96
6/2/2019 24.2 23.3 26.6 6.4 5.3 8.0 95
6/3/2019 24.9 23.7 27.7 6.9 5.3 8.4 96
6/4/2019 24.7 23.7 28.0 6.7 4.4 8.7 96
6/5/2019 24.1 23.4 26.4 6.3 5.0 8.8 95
6/6/2019 24.3 23.5 26.0 6.6 5.5 8.4 96
10

Table 1: Tillery Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
6/7/2019 23.8 23.6 24.4 5.5 5.0 6.9 96
6/8/2019 24.2 23.8 27.1 5.6 4.7 7.7 96
6/9/2019 24.2 23.8 24.8 5.5 4.7 7.4 95
6/10/2019 24.8 24.6 24.9 7.1 6.1 7.7 96
6/11/2019 25.0 24.6 25.4 7.1 6.3 7.6 96
6/12/2019 24.9 24.7 25.1 7.0 6.7 7.3 96
6/13/2019 24.8 24.7 24.9 7.1 6.9 7.2 96
6/14/2019 24.8 24.5 25.1 7.2 6.9 7.7 95
6/15/2019 24.6 24.4 24.9 7.1 6.7 7.4 95
6/16/2019 24.6 24.3 24.8 6.8 6.5 7.3 95
6/17/2019 25.0 24.5 28.2 7.2 6.8 7.8 95
6/18/2019 24.8 24.7 25.0 7.2 6.9 7.6 95
6/19/2019 25.2 25.0 25.4 7.4 7.0 8.0 96
6/20/2019 25.2 25.0 25.7 7.2 6.9 7.6 95
6/21/2019 25.6 24.9 26.3 7.6 6.9 8.5 96
6/22/2019 25.4 25.2 25.7 7.4 7.0 7.9 94
6/23/2019 25.3 25.1 25.6 7.3 6.8 7.7 95
6/24/2019 25.6 25.4 26.2 7.5 6.9 7.9 95
6/25/2019 25.8 25.4 26.4 7.1 6.6 7.6 96
6/26/2019 26.0 25.7 26.5 7.0 6.5 7.6 96
6/27/2019 26.0 25.6 28.4 6.8 6.1 7.6 95
6/28/2019 26.6 25.1 30.8 6.9 5.1 8.5 96
6/29/2019 27.3 25.8 31.2 7.4 5.3 8.8 96
6/30/2019 27.3 25.7 31.4 7.0 4.5 9.1 95
7/1/2019 27.5 26.3 31.2 6.9 5.0 8.5 96
7/2/2019 27.7 26.5 32.1 6.6 5.0 8.8 96
7/3/2019 27.5 26.8 31.1 6.6 5.3 9.2 95
7/4/2019 27.4 26.4 31.6 6.2 5.0 9.0 96
7/5/2019 26.8 26.4 27.8 6.4 5.3 8.8 96
7/6/2019 27.0 26.5 29.2 7.3 5.8 9.6 96
7/7/2019 27.4 26.4 30.8 7.1 5.4 9.4 96
7/8/2019 27.3 26.4 30.6 6.7 5.4 9.2 95
7/9/2019 27.5 26.9 29.2 6.2 5.0 8.4 96
7/10/2019 27.5 26.8 29.9 6.3 5.0 9.0 95
7/11/2019 27.2 26.6 29.7 6.3 5.0 9.2 96
7/12/2019 27.4 26.7 29.3 6.5 5.4 9.2 95
7/13/2019 28.1 27.2 32.2 7.0 5.5 9.3 96
7/14/2019 28.2 27.0 31.9 6.4 4.8 8.9 96
7/15/2019 28.5 27.5 33.0 6.5 4.6 9.2 96
7/16/2019 28.6 27.6 32.4 6.5 5.0 9.5 95
7/17/2019 28.7 27.5 32.2 6.5 4.9 9.2 95
11

Table 1: Tillery Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
7/18/2019 27.9 27.5 28.6 5.4 4.3 7.9 95
7/19/2019 28.0 27.8 28.5 5.7 5.0 7.6 96
7/20/2019 28.4 27.6 31.2 6.2 5.0 8.3 95
7/21/2019 28.9 27.9 31.6 6.3 4.9 8.6 93
7/22/2019 28.8 27.5 31.2 6.6 4.9 8.9 96
7/23/2019 28.2 27.3 29.9 6.0 4.7 8.7 96
7/24/2019 28.7 27.5 30.8 6.7 4.8 8.3 96
7/25/2019 28.6 27.6 30.9 6.6 4.7 8.2 96
7/26/2019 27.9 27.3 29.2 5.9 4.8 8.2 96
7/27/2019 28.6 27.1 31.5 6.8 4.9 8.7 96
7/28/2019 28.5 27.1 31.5 6.2 4.8 8.6 96
7/29/2019 27.8 27.0 28.7 5.6 4.8 8.1 95
7/30/2019 27.9 27.0 28.4 5.4 4.6 7.0 96
7/31/2019 27.8 27.1 28.4 5.6 5.0 7.0 96
8/1/2019 27.9 27.2 28.6 6.0 5.0 7.0 95
8/2/2019 28.0 27.3 28.8 6.3 5.0 8.3 96
8/3/2019 28.5 27.6 31.4 6.3 4.8 8.0 96
8/4/2019 28.5 27.8 30.6 6.1 4.8 8.2 96
8/5/2019 28.1 27.6 28.5 5.8 4.9 7.5 96
8/6/2019 28.3 27.4 30.6 6.3 5.3 8.1 96
8/7/2019 28.3 27.5 30.1 5.7 5.0 8.2 96
8/8/2019 28.7 27.4 32.1 6.0 5.0 8.1 96
8/9/2019 29.0 27.9 31.9 5.9 5.0 8.1 96
8/10/2019 28.8 28.1 30.1 6.3 4.9 8.0 96
8/11/2019 29.0 28.1 31.5 6.1 5.0 8.0 96
8/12/2019 29.7 28.1 32.6 6.3 4.8 8.4 95
8/13/2019 28.6 28.2 30.5 5.5 4.6 8.1 96
8/14/2019 28.8 27.6 31.8 6.3 5.1 8.2 96
8/15/2019 28.9 28.2 32.0 6.1 5.1 8.8 96
8/16/2019 28.8 28.0 30.9 6.2 5.1 8.6 96
8/17/2019 28.7 28.0 31.7 6.0 5.0 8.4 95
8/18/2019 29.1 27.8 32.0 6.2 5.0 8.2 95
8/19/2019 28.9 28.1 31.7 6.1 5.1 8.1 96
8/20/2019 28.6 28.0 29.4 5.7 5.1 7.9 96
8/21/2019 28.4 27.6 29.1 5.9 5.3 7.7 95
8/22/2019 28.8 28.4 29.4 5.9 5.1 7.8 96
8/23/2019 29.0 28.2 31.6 6.1 5.1 8.0 96
8/24/2019 28.4 27.8 28.8 6.4 5.3 7.3 96
8/25/2019 27.9 27.2 29.2 6.8 5.5 8.5 96
8/26/2019 28.1 26.9 30.6 6.3 5.5 8.5 96
8/27/2019 28.0 27.2 29.9 6.1 5.3 8.3 96
12

Table 1: Tillery Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
8/28/2019 28.1 27.5 29.3 5.9 5.5 8.3 96
8/29/2019 28.0 26.9 29.8 6.3 5.4 8.2 96
8/30/2019 27.7 26.4 30.8 6.3 5.3 8.5 96
8/31/2019 28.2 26.8 31.1 7.0 5.1 8.6 96
9/1/2019 27.7 26.4 30.6 6.4 4.8 9.1 96
9/2/2019 28.0 26.8 30.8 6.4 5.0 8.7 96
9/3/2019 28.2 27.0 31.4 6.2 4.9 8.7 96
9/4/2019 28.1 27.0 31.2 6.2 5.0 8.9 96
9/5/2019 27.5 26.6 28.1 5.9 5.0 7.3 96
9/6/2019 27.6 26.1 30.6 6.8 5.7 8.5 95
9/7/2019 27.7 26.7 30.1 6.9 6.0 8.6 96
9/8/2019 28.1 26.7 30.5 6.5 5.2 8.2 96
9/9/2019 27.9 27.0 31.4 6.1 4.7 8.9 96
9/10/2019 28.2 27.0 31.2 6.4 5.0 9.1 96
9/11/2019 28.1 26.8 31.6 6.3 5.0 9.1 96
9/12/2019 28.3 26.9 31.6 6.2 5.0 8.8 95
9/13/2019 27.9 27.0 30.4 5.9 5.0 8.7 95
9/14/2019 28.1 27.1 30.1 6.4 4.9 8.5 96
9/15/2019 28.3 27.1 30.5 6.2 5.0 8.3 95
9/16/2019 28.3 26.8 31.2 6.1 4.8 8.1 96
9/17/2019 28.3 26.8 31.4 6.2 4.9 8.3 96
9/18/2019 27.7 26.6 29.4 6.3 5.0 8.6 96
9/19/2019 27.1 25.6 29.4 6.3 4.9 8.3 95
9/20/2019 26.7 25.0 28.9 6.2 5.4 8.5 95
9/21/2019 26.8 25.1 29.6 6.5 5.2 8.3 96
9/22/2019 26.8 25.6 29.0 6.3 5.0 8.5 96
9/23/2019 26.8 25.4 28.3 6.8 4.7 8.6 96
9/24/2019 27.1 25.7 29.5 5.9 4.9 8.5 95
9/25/2019 26.8 25.0 29.6 6.9 5.3 9.1 96
9/26/2019 26.7 25.6 29.6 6.3 5.2 9.2 96
9/27/2019 26.9 25.9 29.5 6.2 5.0 8.8 96
9/28/2019 27.0 25.9 29.6 6.3 4.7 8.8 95
9/29/2019 27.1 25.8 30.1 6.4 4.8 8.9 96
9/30/2019 26.9 26.4 28.4 6.2 5.3 8.6 96
10/1/2019 27.3 26.6 29.7 6.4 5.3 8.5 95
10/2/2019 27.3 26.1 30.1 6.3 5.0 8.5 96
10/3/2019 27.3 25.9 30.3 6.3 5.0 8.5 95
10/4/2019 27.2 25.8 30.0 6.2 5.1 8.2 96
10/5/2019 26.4 25.7 26.9 6.2 4.6 8.0 96
10/6/2019 26.1 24.9 27.3 6.6 5.3 8.5 96
10/7/2019 26.1 25.1 27.4 6.3 5.1 8.3 96
13

Table 1: Tillery Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
10/8/2019 25.7 24.7 26.4 6.5 5.5 8.6 96
10/9/2019 26.0 24.3 27.8 6.8 5.5 8.7 96
10/10/2019 25.4 23.8 27.5 6.8 5.6 8.9 96
10/11/2019 25.3 23.4 27.9 7.0 5.7 9.0 96
10/12/2019 25.2 23.4 27.6 7.1 5.7 9.2 96
10/13/2019 24.7 24.1 25.4 6.8 5.6 8.7 96
10/14/2019 24.9 23.5 26.9 7.1 5.8 9.3 96
10/15/2019 24.4 22.7 26.3 7.2 5.8 9.3 96
10/16/2019 23.8 22.4 24.4 6.9 5.9 8.8 96
10/17/2019 23.2 21.7 24.9 7.5 6.1 9.3 96
10/18/2019 23.1 21.2 25.2 7.5 6.2 9.5 96
10/19/2019 22.3 21.0 23.3 7.4 6.1 9.1 96
10/20/2019 22.2 21.6 22.8 7.7 6.6 9.4 94
10/21/2019 22.8 21.4 25.2 7.8 6.4 9.7 96
10/22/2019 22.5 21.3 24.0 7.6 6.3 9.5 96
10/23/2019 21.6 20.4 23.1 8.0 6.5 9.7 95
10/24/2019 21.7 20.0 24.1 7.9 6.5 9.8 95
10/25/2019 21.8 20.4 23.9 7.8 6.2 10.0 96
10/26/2019 21.8 20.6 23.8 7.7 5.9 9.8 96
10/27/2019 22.1 21.1 24.4 7.5 6.0 9.7 95
10/28/2019 21.9 20.4 24.4 7.8 6.3 9.9 96
10/29/2019 21.5 21.2 22.3 7.4 6.3 9.9 95
10/30/2019 21.4 21.1 21.8 7.8 6.4 8.9 96
10/31/2019 21.6 21.3 21.8 8.6 8.0 9.1 96
11/1/2019 21.1 20.7 21.3 9.1 8.7 9.3 96
11/2/2019 21.0 20.9 21.2 9.2 9.0 9.4 96
11/3/2019 20.6 20.3 20.9 9.2 9.1 9.4 100
11/4/2019 20.2 20.0 20.4 9.3 9.2 9.4 96
11/5/2019 19.6 18.6 20.2 8.9 7.7 9.6 96
11/6/2019 19.3 18.3 19.9 9.0 7.9 9.7 96
11/7/2019 18.7 17.5 19.6 9.0 8.1 9.7 96
11/8/2019 18.9 17.8 19.2 9.2 8.0 9.8 95
11/9/2019 18.2 16.6 18.8 9.3 8.2 9.9 96
11/10/2019 18.2 18.0 18.6 9.5 9.3 10.1 96
11/11/2019 18.0 17.8 18.4 9.6 9.3 10.1 96
11/12/2019 17.4 16.4 17.8 9.5 9.3 9.7 96
11/13/2019 16.7 16.3 16.8 10.0 9.5 10.3 95
11/14/2019 16.3 16.1 16.5 10.0 9.9 10.3 96
11/15/2019 15.9 15.7 16.1 9.8 9.3 10.2 96
11/16/2019 15.0 14.0 15.7 9.4 8.7 11.0 96
11/17/2019 14.8 13.5 16.2 9.4 8.8 10.8 96
14

Table 1: Tillery Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
11/18/2019 14.7 14.2 15.0 9.5 8.5 11.1 96
11/19/2019 14.1 13.5 14.8 9.6 8.6 11.3 96
11/20/2019 14.3 13.2 16.0 9.9 8.8 11.5 96
11/21/2019 14.0 12.8 16.3 9.7 8.8 11.7 96
11/22/2019 14.1 13.4 15.6 9.5 8.3 11.7 96
11/23/2019 13.9 13.7 14.0 9.2 8.4 10.6 96
11/24/2019 14.0 13.0 15.3 9.8 8.8 11.5 96
11/25/2019 13.8 12.5 16.0 9.8 8.7 11.6 96
11/26/2019 13.7 12.4 15.6 9.8 8.6 11.9 96
11/27/2019 13.6 12.9 14.6 9.6 8.6 11.6 96
11/28/2019 13.6 12.5 15.3 9.9 8.8 11.8 96
11/29/2019 13.5 12.2 15.5 10.1 9.0 12.1 96
11/30/2019 13.2 12.8 13.5 9.6 8.8 11.5 96

15

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,
2019

Table 2: Blewett Falls Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
5/1/2019 20.8 20.1 22.2 8.6 8.1 9.1 96
5/2/2019 21.5 20.6 22.4 8.6 8.0 9.6 96
5/3/2019 21.6 21.0 22.7 8.0 7.3 8.7 96
5/4/2019 22.0 21.3 23.5 8.1 7.5 8.7 96
5/5/2019 22.2 21.5 23.4 8.0 7.4 8.6 96
5/6/2019 22.4 21.9 23.0 7.9 7.4 8.5 96
5/7/2019 22.3 21.6 23.0 7.8 7.5 8.3 95
5/8/2019 22.2 21.7 23.1 7.7 7.3 8.2 96
5/9/2019 22.3 21.8 23.2 7.7 7.3 8.1 96
5/10/2019 22.0 21.8 22.6 7.6 7.1 8.0 96
5/11/2019 21.6 21.4 22.1 7.4 6.5 8.2 96
5/12/2019 21.5 21.2 21.8 8.0 7.2 8.3 95
5/13/2019 21.5 21.0 22.5 7.9 7.5 8.4 95
5/14/2019 21.4 20.7 22.3 7.7 7.4 7.9 96
5/15/2019 21.8 21.0 23.2 7.7 7.3 8.3 96
5/16/2019 21.9 21.1 23.3 8.0 6.8 8.5 96
5/17/2019 22.6 21.4 24.1 7.7 6.7 8.3 96
5/18/2019 23.3 22.1 24.6 7.9 6.7 9.0 95
5/19/2019 23.5 22.8 24.4 7.8 6.6 9.1 96
5/20/2019 24.6 23.2 26.6 7.8 7.1 9.3 95
5/21/2019 25.4 24.1 26.8 7.8 6.5 9.6 95
5/22/2019 25.0 24.5 25.7 7.1 6.2 7.7 96
5/23/2019 24.8 24.1 26.2 6.9 6.0 8.1 96
5/24/2019 25.7 24.3 27.8 7.1 5.9 9.0 95
5/25/2019 25.9 25.1 26.5 7.4 5.7 9.2 96
5/26/2019 26.6 25.0 28.9 7.5 6.1 9.2 95
5/27/2019 27.6 26.0 29.3 7.3 5.5 9.3 96
5/28/2019 28.1 26.4 30.0 6.8 4.9 8.5 96
5/29/2019 27.8 26.3 29.6 6.9 5.6 8.4 96
5/30/2019 27.8 26.3 29.4 7.0 5.4 8.8 96
5/31/2019 27.4 26.5 28.9 6.7 5.5 8.4 96
6/1/2019 27.0 26.0 28.1 6.9 4.8 9.2 96
6/2/2019 26.7 26.0 27.4 6.6 5.1 8.2 96
6/3/2019 26.6 25.8 27.8 6.7 4.8 9.0 95
6/4/2019 26.2 25.6 26.7 6.1 4.4 7.6 96
16

Table 2: Blewett Falls Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
6/5/2019 25.8 25.2 26.8 5.9 4.4 8.1 96
6/6/2019 26.1 25.3 26.9 6.5 4.9 8.4 96
6/7/2019 25.8 25.7 26.1 5.8 3.6 7.0 96
6/8/2019 25.8 25.5 26.4 6.5 5.9 7.3 96
6/9/2019 25.4 25.1 25.9 7.1 6.1 7.9 96
6/10/2019 25.4 24.9 26.3 7.7 7.2 8.5 96
6/11/2019 25.8 25.2 26.5 8.0 7.5 8.8 96
6/12/2019 25.2 24.8 25.7 7.2 6.7 7.8 96
6/13/2019 24.9 24.6 25.5 7.5 6.8 7.9 95
6/14/2019 25.1 24.3 26.1 8.1 7.4 8.8 95
6/15/2019 25.2 24.4 26.2 7.9 7.4 8.6 96
6/16/2019 25.5 24.7 26.7 7.9 7.2 9.4 96
6/17/2019 26.1 25.2 27.4 7.8 7.1 9.1 96
6/18/2019 26.5 25.8 27.3 8.2 7.0 9.7 95
6/19/2019 26.6 26.1 27.2 8.3 7.9 8.8 95
6/20/2019 26.5 26.0 27.2 8.2 7.7 8.6 95
6/21/2019 26.7 26.0 27.8 8.1 7.4 9.2 96
6/22/2019 27.0 26.3 27.9 8.2 7.5 9.8 96
6/23/2019 26.9 26.4 27.6 8.0 7.5 9.1 95
6/24/2019 27.0 26.4 27.9 8.2 7.4 9.8 96
6/25/2019 27.3 26.4 28.4 8.3 7.3 10.3 96
6/26/2019 27.6 26.8 28.5 8.2 6.8 11.2 93
6/27/2019 27.5 26.9 28.2 8.2 6.9 10.0 96
6/28/2019 27.6 26.9 28.6 7.7 5.7 9.9 96
6/29/2019 27.9 27.0 29.1 7.8 5.8 10.8 95
6/30/2019 28.8 27.3 30.7 7.7 5.8 10.8 96
7/1/2019 29.4 28.4 30.3 7.2 5.4 9.8 96
7/2/2019 29.2 28.2 30.0 7.0 5.3 9.2 96
7/3/2019 29.7 28.4 31.3 7.3 5.4 9.4 96
7/4/2019 29.3 28.7 30.0 6.7 5.4 8.5 96
7/5/2019 28.9 28.4 29.8 6.4 5.5 8.3 95
7/6/2019 28.6 28.0 29.5 6.9 5.0 8.5 96
7/7/2019 28.4 28.0 29.0 6.6 4.9 8.1 96
7/8/2019 28.4 28.0 29.5 6.5 5.6 7.7 96
7/9/2019 28.0 27.8 28.4 6.0 3.6 7.1 96
7/10/2019 28.3 27.5 29.4 5.7 4.4 7.4 96
7/11/2019 28.5 27.9 29.8 6.4 4.3 8.1 96
7/12/2019 28.9 28.1 30.0 6.8 5.4 8.7 96
7/13/2019 29.1 28.4 30.2 7.1 5.8 8.7 96
7/14/2019 29.1 28.1 30.2 7.4 6.0 9.5 96
17

Table 2: Blewett Falls Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
7/15/2019 29.8 28.8 30.9 7.4 4.7 11.1 96
7/16/2019 30.1 29.2 31.3 7.0 4.0 10.9 96
7/17/2019 30.1 29.1 31.5 6.7 4.4 9.6 96
7/18/2019 30.5 29.4 31.9 5.4 2.2 8.9 95
7/19/2019 30.3 29.7 31.7 5.9 4.4 9.4 96
7/20/2019 30.3 29.4 31.6 6.4 2.3 8.2 94
7/21/2019 30.6 29.4 32.1 5.5 2.1 8.7 94
7/22/2019 30.4 29.5 31.4 5.9 1.6 8.8 95
7/23/2019 29.8 28.8 30.7 5.6 3.9 7.7 96
7/24/2019 29.2 28.1 30.3 5.6 0.9 7.6 96
7/25/2019 29.2 28.5 30.0 6.0 1.7 8.2 96
7/26/2019 28.8 28.0 29.7 5.4 2.7 7.5 96
7/27/2019 28.5 27.8 29.4 6.8 3.1 9.3 95
7/28/2019 28.7 27.7 29.9 5.6 3.0 8.2 95
7/29/2019 28.6 27.6 29.7 6.2 3.2 9.8 96
7/30/2019 28.7 27.7 29.8 7.2 5.2 9.8 96
7/31/2019 29.0 28.3 30.1 6.5 4.1 8.5 96
8/1/2019 29.1 28.4 30.3 6.0 3.2 8.1 96
8/2/2019 28.8 28.2 29.7 5.5 2.8 7.0 95
8/3/2019 28.8 28.2 29.6 5.5 1.5 7.0 95
8/4/2019 28.7 28.3 29.5 5.5 3.2 6.8 96
8/5/2019 28.8 28.2 29.6 5.1 2.8 6.5 96
8/6/2019 28.8 28.2 29.7 5.4 2.6 7.3 96
8/7/2019 29.2 28.0 30.6 5.5 2.7 8.2 96
8/8/2019 29.7 28.7 31.2 5.7 1.7 9.5 96
8/9/2019 30.0 28.9 31.1 4.7 1.7 9.6 95
8/10/2019 29.8 29.1 30.4 3.7 0.3 6.3 96
8/11/2019 29.9 29.0 30.9 4.5 0.5 8.0 96
8/12/2019 30.0 29.3 30.7 4.7 1.5 8.0 96
8/13/2019 29.9 29.1 31.0 4.0 0.5 6.8 96
8/14/2019 29.9 29.0 31.4 6.6 4.4 8.9 96
8/15/2019 29.9 29.2 31.1 5.9 4.4 8.3 96
8/16/2019 29.8 29.3 30.6 5.3 3.6 8.3 96
8/17/2019 29.7 28.8 31.0 5.7 4.4 8.2 96
8/18/2019 30.0 29.1 31.2 5.6 3.5 8.9 95
8/19/2019 30.0 29.4 30.9 4.9 2.0 8.3 96
8/20/2019 29.9 29.2 30.7 5.9 4.2 8.7 96
8/21/2019 30.0 29.2 31.2 5.4 3.1 7.9 95
8/22/2019 30.0 29.4 30.8 5.1 2.5 8.2 95
8/23/2019 29.9 29.1 31.1 6.3 3.2 9.5 95
18

Table 2: Blewett Falls Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
8/24/2019 28.8 28.0 29.6 4.7 1.7 6.2 96
8/25/2019 27.8 27.5 28.1 4.5 0.8 5.8 96
8/26/2019 27.5 26.8 28.3 3.4 1.0 6.1 94
8/27/2019 27.3 26.6 28.0 3.7 1.4 6.6 96
8/28/2019 27.6 26.6 28.9 5.6 2.7 9.5 95
8/29/2019 27.6 26.6 28.4 7.3 5.7 9.6 96
8/30/2019 27.6 26.6 28.7 7.4 5.8 10.0 96
8/31/2019 27.8 27.0 28.9 7.1 5.5 8.8 95
9/1/2019 28.0 27.0 29.0 7.1 5.3 9.0 96
9/2/2019 28.4 27.5 29.6 7.2 5.4 9.7 96
9/3/2019 28.6 27.7 29.8 7.1 5.2 9.4 94
9/4/2019 28.6 27.9 29.3 7.4 6.7 8.8 95
9/5/2019 27.8 27.2 28.4 6.7 6.2 7.4 95
9/6/2019 27.7 26.7 28.8 6.6 5.7 7.7 96
9/7/2019 27.8 27.0 28.8 6.4 5.2 7.8 95
9/8/2019 28.0 26.9 29.0 7.4 5.7 10.1 96
9/9/2019 28.8 27.6 30.2 7.7 5.8 10.8 96
9/10/2019 29.0 28.0 29.9 7.0 5.4 9.4 96
9/11/2019 29.3 28.2 30.6 6.6 4.9 9.6 96
9/12/2019 29.3 28.3 30.4 6.4 3.9 8.7 96
9/13/2019 28.5 27.4 29.9 6.1 4.5 8.1 96
9/14/2019 28.3 27.5 29.4 5.4 4.7 6.5 96
9/15/2019 28.7 27.8 29.6 5.4 3.9 7.2 96
9/16/2019 28.8 27.8 29.8 6.0 3.6 8.4 95
9/17/2019 28.7 27.9 29.6 6.6 5.6 9.1 96
9/18/2019 28.0 27.4 28.6 6.3 4.9 8.2 96
9/19/2019 27.2 26.4 28.1 6.5 4.9 8.1 96
9/20/2019 26.7 25.7 27.9 6.6 5.2 9.4 96
9/21/2019 26.3 25.3 27.4 6.8 5.0 8.1 96
9/22/2019 26.2 25.2 27.4 6.7 4.8 9.8 96
9/23/2019 26.1 25.1 27.2 6.9 5.3 9.1 96
9/24/2019 26.4 25.4 27.6 7.5 4.9 10.6 96
9/25/2019 26.6 26.1 27.1 7.2 5.4 9.1 96
9/26/2019 26.8 26.0 28.0 6.2 3.9 8.3 96
9/27/2019 26.9 26.2 27.7 6.1 4.1 7.9 96
9/28/2019 27.2 26.4 28.1 6.4 4.5 9.1 96
9/29/2019 27.6 26.6 28.9 6.4 3.6 8.9 96
9/30/2019 27.7 27.3 28.3 5.9 3.9 7.1 95
10/1/2019 27.9 27.4 28.7 5.7 2.1 7.9 96
10/2/2019 27.9 27.1 28.9 5.7 2.8 7.9 96
19

Table 2: Blewett Falls Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
10/3/2019 28.0 27.1 29.0 6.2 4.6 8.1 96
10/4/2019 28.2 27.1 29.5 6.6 3.8 8.8 96
10/5/2019 26.6 25.9 28.1 6.4 6.0 7.0 96
10/6/2019 26.0 25.2 26.9 5.5 2.2 6.7 96
10/7/2019 25.8 25.2 26.3 4.5 2.1 6.9 96
10/8/2019 25.4 24.9 25.7 5.5 2.3 6.6 96
10/9/2019 24.8 23.9 25.6 5.9 4.8 7.2 96
10/10/2019 24.3 23.5 25.2 6.8 4.0 8.4 96
10/11/2019 24.0 23.0 24.9 7.2 5.6 8.6 96
10/12/2019 23.7 22.5 24.9 7.1 4.5 8.6 95
10/13/2019 23.5 23.0 23.8 6.5 4.4 7.9 96
10/14/2019 23.6 22.8 24.6 6.8 5.3 8.0 96
10/15/2019 23.0 22.2 23.8 6.1 3.5 7.8 96
10/16/2019 22.6 22.1 23.0 6.6 4.4 7.8 96
10/17/2019 21.6 20.9 22.5 7.1 5.5 8.5 96
10/18/2019 21.1 20.1 22.4 7.3 5.7 8.3 96
10/19/2019 20.4 19.8 21.0 7.3 5.8 8.3 96
10/20/2019 20.2 20.0 20.5 7.7 6.2 8.2 96
10/21/2019 20.2 19.4 21.0 7.0 5.0 8.6 96
10/22/2019 20.3 19.9 21.0 7.7 6.7 8.6 96
10/23/2019 19.9 19.1 21.1 7.8 6.7 8.8 96
10/24/2019 19.7 18.8 20.6 7.9 6.1 8.7 96
10/25/2019 19.8 19.2 20.6 7.8 6.0 9.1 96
10/26/2019 19.8 19.2 20.3 7.8 5.9 8.7 96
10/27/2019 20.8 19.9 22.3 7.8 6.5 8.9 96
10/28/2019 20.7 20.1 21.4 7.7 5.9 9.8 96
10/29/2019 20.8 20.4 21.3 8.3 5.4 9.8 95
10/30/2019 21.0 20.8 21.1 8.5 8.1 9.0 96
10/31/2019 21.3 20.9 22.0 8.2 7.4 8.9 96
11/1/2019 20.6 20.1 21.2 8.7 8.0 9.6 96
11/2/2019 20.2 19.9 20.6 9.1 8.7 9.9 96
11/3/2019 19.5 19.1 20.1 9.1 8.8 9.8 100
11/4/2019 18.9 18.6 19.4 9.2 8.7 9.9 96
11/5/2019 18.8 18.4 19.1 9.2 8.6 9.9 96
11/6/2019 18.8 18.5 19.3 9.0 8.7 9.4 96
11/7/2019 18.7 18.1 19.6 9.0 8.5 9.8 96
11/8/2019 18.4 17.4 18.9 8.7 8.3 9.3 96
11/9/2019 17.1 16.6 17.7 9.3 8.7 9.9 96
11/10/2019 16.6 16.2 17.3 9.4 9.0 10.2 96
11/11/2019 16.0 15.5 16.7 9.5 9.1 10.1 96
20

Table 2: Blewett Falls Development
Daily Daily Daily Daily Daily Daily
Avg
Temp
Min
Temp
Max
Temp Avg DO Min DO Max DO
Date Deg C Deg C Deg C mg/ml mg/ml mg/ml N
11/12/2019 15.4 14.4 15.7 9.4 9.2 9.7 96
11/13/2019 13.9 13.3 14.4 9.7 9.2 10.1 96
11/14/2019 13.6 13.3 13.8 10.2 10.0 10.5 96
11/15/2019 13.4 13.2 13.5 10.2 10.0 10.4 96
11/16/2019 13.0 12.6 13.3 10.1 10.0 10.3 96
11/17/2019 12.6 12.1 13.3 10.1 10.0 10.4 96
11/18/2019 12.4 12.3 12.6 10.2 9.8 10.6 96
11/19/2019 12.4 12.2 12.7 10.1 9.6 10.6 96
11/20/2019 12.5 11.9 13.4 9.9 9.4 10.3 96
11/21/2019 12.5 12.0 13.4 10.1 9.7 10.6 96
11/22/2019 12.6 12.1 13.2 10.0 9.6 10.4 96
11/23/2019 12.8 12.7 13.0 9.9 9.5 10.2 96
11/24/2019 13.0 12.6 13.6 9.8 9.4 10.3 96
11/25/2019 12.9 12.5 13.8 10.1 9.8 10.3 96
11/26/2019 13.0 12.7 13.5 10.1 9.7 10.4 96
11/27/2019 13.0 12.6 13.5 9.9 9.6 10.2 95
11/28/2019 12.9 12.5 13.4 10.0 9.5 10.6 96
11/29/2019 12.7 12.2 13.3 10.0 9.4 10.5 96
11/30/2019 12.6 12.4 12.7 9.6 8.9 10.4 96

21

Table 3: Maintenance/calibration dates for USGS Water Quality Stations at the Tillery and Blewett
Falls Developments during the 2019 Water Quality Monitoring Season

Tillery Development: USGS Station No. 0212378405
Date Time Explanation
04/06/2019 07:50 Sonde deployment
06/27/2019 09:04 Upgraded SL3 firmware to v8.26
09/20/2019 09:57 Replaced sonde and calibration
12/06/2019 13:28 Removed sonde for the season
Blewett Falls Development: USGS Station No. 0212880025
Date Time Explanation
04/04/2019 10:43 Sonde deployment
06/18/2019 09:11 Upgraded SL3 firmware to v8.26
09/03/2019 11:20
upgraded SL3 to firmware 8.27 and Calibration
(sonde swap)
09/17/2019 11:43 Visit to do QW cross section
10/29/2019 10:04 Sonde swap and calibration
12/03/2019 14:01 Calibration check and sonde removal