20030147 Ver 2_2023 Water Quality Compliance Report_20240401

(� DUKE
ENERGY
April 1, 2024
The Honorable Debbie -Anne Reese, Acting 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)
2023 Water Quality Compliance Report
Dear Acting Secretary Reese:
WATER STRATEGY, HYDRO LICENSING AND
LAKE SERVICES
Duke Energy Corporation
Regulated and Renewable Energy
525 South Tryon Street / Mail Code DEP-35B
Charlotte, NC 28202
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 2023 Water Quality Compliance Report required
annually for the Project by Article 402 of the New License.
Please contact me at [phone] (John. Crutchfieldkduke-energy com) if you have questions
or require additional information.
Sincerely,
4'/'IAV 61_'�_ 0
John Crutchfield
Project Manager II
Water Strategy, Hydro Licensing, and Lake Services
Duke Energy
Enclosure
cc w/enclosure: Stephanie Goss, NCDEQ
Chonticha McDaniel, NCDEQ
Fred Tarver, NCDEQ
Jeff Lineberger
Jason Brown
Lynne Dunn
Justin Dycus
Alan Madewell
David Scott
Phil Fragapane

Yadkin -Pee Dee Hydroelectric Project
FERC Proj ect No. 2206
2023 Water Quality Compliance Report
Duke Energy Progress, LLC
April zoza
(> DUKE
ENERGY.

Yadkin -Pee Dee Hydroelectric Project
FERC Project No. 2206
2023 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 (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 (NC DWR). During
December 2022, Duke Energy updated the Compliance Plan, as part of a License non -capacity
amendment for replacing Tillery Units 1 and 3 with aerating runners. FERC subsequently approved the
revised Compliance Plan on August 24, 2023 (Duke Energy Progress, LLC 2022)1.
This report fulfills the annual water quality compliance reporting requirement outlined in the WQC for
monitoring conducted in 2023. The data reported here conform to requirements outlined in the revised
Compliance Plan, Section 6.0 — Compliance Monitoring and Reporting (Duke Energy Progress, LLC
2022).
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, 2023, in the tailwaters of the Tillery and Blewett Falls Developments:
• Dissolved oxygen (DO), mg/L
Water temperature, °C
• Gage height (river stage), ft
Measurements were carried out by the United States Geological Survey (USGS) as required by Section
5.0 of the Compliance Plan, at the following locations:
1FERC E-Library Accession No. 20230824-3048.

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
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 6.0 of the revised Compliance Plan. This report and the
associated Excel file provide the following results for data collected May 1 through November 30, 2023:
• DO and water temperature recorded at 15-minute intervals
• Daily minimum, average, and maximum DO values
0 Daily minimum, average, and maximum water temperature values
Calculations for percent DO saturation (% saturation) 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
2023.x1sx.
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
collected during the 2023 monitoring period was 99.1% for the USGS station at Blewett Falls
Development (USGS No. 0212880025) and 99.9% for the USGS station at Tillery Development (USGS
No. 0212378405).
The USGS switched monitoring equipment to In -Situ Aqua Troll 600 Multiparameter sondes equipped
with Aqua Troll 0063450 RDO sensors for compliance water quality monitoring in April 2021. This
2

equipment replaced the previous sondes deployed at the monitoring sites specified in the FERC approved
2012 Compliance Plan (i.e., YSI 600 OMS V2 sondes equipped with YSI 6150+ ROX Optical DO
Probes) (Progress Energy Carolinas, Inc. 2012). The In -Situ equipment description was included in the
updated DO Compliance Plan approved by FERC on August 24, 2023 (see Section 5.2) (Duke Energy
Progress, LLC 2022).
Table 3 documents the dates during the monitoring period when the USGS performed routine calibration
and maintenance of the field instrumentation.
3.1 Compliance with Water Quality Standards
The WQC issued by NC 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, 2023), the daily average DO concentrations in the
Tillery Development and Blewett Falls Development tailwaters remained above the state standard of
5.0 mg/L (Figures 1 and 2).
Instantaneous DO Standard
During the monitoring period (May 1 - November 30, 2023), the instantaneous DO concentration in the
Tillery Development and Blewett Falls Development tailwaters remained above the state standard of
4.0 mg/L (Figures 1 and 2).
4.0 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.
Duke Energy Progress, LLC. 2022. Yadkin Pee -Dee Hydroelectric Project No. 2206, Tillery and Blewett
Falls Developments, Dissolved Oxygen Compliance Implementation Plan, Revision 1, December 2022.
Progress Energy Carolinas, Inc., Charlotte, North Carolina.
4

Figure 1. Daily average and minimum DO concentrations downstream of the Tillery Development (USGS Station No. 0212378405),
May 1- November 30, 2023.
12.0
10.0
8.0
J
o�uo 6.0
4.0
2023 Tillery Dissolved Oxygen
----------------------------------
0.0 1
5/1/2023
6/1/2023 7/1/2023 8/1/2023 9/1/2023 10/1/2023 11/1/2023 12/1/2023
Date
Daily Average DO Minimum Daily DO — — Average DO Standard — — Minimum DO Standard
5

Figure 2. Daily average, and minimum DO concentrations downstream of the Blewett Falls Development (USGS Station No. 212880025),
May 1 - November 30, 2023.
2023 Blewett Falls Dissolved Oxygen
12.0
10.0
8.0
J
txo 6.0
E
4.0 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
2.0
0.0
5/1/2023 6/1/2023 7/1/2023 8/1/2023 9/1/2023 10/1/2023 11/1/2023 12/1/2023
Date
Daily Average DO Minimum Daily DO — — Average DO Standard — — Minimum DO Standard
ro

Figure 3. Daily average, minimum, and maximum water temperatures downstream of the Tillery Development (USGS Station No.
0212378405), May 1 - November 30, 2023.
2023 Tillery Water Temperature
35.0
30.0
25.0
U 20.0
N
G1
G1
L
NO
15.0
10.0
5.0
0.0
5/1/2023 6/1/2023 7/1/2023 8/1/2023 9/1/2023 10/1/2023 11/1/2023 12/1/2023
Date
Daily Average Temperature Daily Minimum Temperature Daily Maximum Temperature

Figure 4. Daily average, minimum, and maximum water temperatures downstream of the Blewett Falls Development (USGS Station No.
0212880025), May 1 - November 30, 2023.
2023 Blewett Falls Water Temperature
35.0
30.0
25.0
v 20.0
N
GJ
GJ
bA
GJ
15.0
10.0
5.0
0.0
5/1/2023 6/1/2023 7/1/2023 8/1/2023 9/1/2023 10/1/2023 11/1/2023 12/1/2023
Date
Daily Average Temperature Daily Minimum Temperature Daily Maximum Temperature

Table 1. Daily average, minimum, and maximum DO (mg/L) and water temperature (Deg Q
downstream of the Tillery Development (USGS Station No. 0212378405) May 1 -
November 30, 2023.
Table 1: Tillery Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
5/1/2023
18.4
17.9
20.7
9.1
8.5
10.9
96
5/2/2023
18.1
17.8
18.4
8.9
8.3
9.5
96
5/3/2023
18.1
17.8
18.4
9.4
8.8
10.1
96
5/4/2023
18.1
17.0
18.7
9.4
7.3
10.4
96
5/5/2023
18.1
17.5
18.4
9.3
7.4
10.2
96
5/6/2023
18.0
17.3
18.7
9.1
7.5
10.4
96
5/7/2023
18.1
17.5
18.5
8.8
7.4
10.0
96
5/8/2023
18.4
18.0
18.7
8.6
7.2
9.9
96
5/9/2023
19.1
18.4
19.6
8.8
6.8
10.3
96
5/10/2023
19.6
19.1
20.0
8.7
6.2
10.3
96
5/11/2023
19.4
18.7
22.9
8.9
6.4
11.8
96
5/12/2023
18.9
18.6
19.3
8.7
6.8
9.8
96
5/13/2023
18.9
18.6
19.4
8.4
6.8
9.9
96
5/14/2023
19.7
19.1
20.5
8.3
6.5
10.1
96
5/15/2023
20.0
19.3
20.7
8.6
6.3
10.1
96
5/16/2023
20.3
19.1
23.6
9.0
7.8
11.6
96
5/17/2023
20.8
19.4
24.9
8.5
6.5
10.7
94
5/18/2023
20.4
19.9
21.4
7.7
6.0
8.5
96
5/19/2023
20.6
20.0
22.2
7.7
6.3
9.8
96
5/20/2023
21.6
19.8
23.4
8.2
6.9
9.9
96
5/21/2023
21.2
19.8
24.9
7.6
6.1
10.6
96
5/22/2023
21.1
20.2
24.5
7.6
6.2
10.3
96
5/23/2023
21.6
20.2
24.5
7.9
6.0
10.5
96
5/24/2023
21.5
20.2
24.9
7.8
6.1
10.0
96
5/25/2023
21.2
20.2
23.0
7.7
6.2
10.0
96
5/26/2023
20.9
20.4
22.2
7.6
6.4
9.9
96
5/27/2023
20.8
20.2
21.3
8.0
6.5
9.7
96
5/28/2023
20.3
20.0
21.0
7.7
6.6
9.3
96
5/29/2023
20.5
19.9
22.5
7.6
6.6
9.7
96
5/30/2023
20.1
20.0
20.4
7.1
6.6
8.5
96
5/31/2023
20.2
20.0
20.5
7.4
6.6
8.0
96
6/1/2023
20.5
20.0
21.0
7.7
6.5
8.6
96
6/2/2023
21.4
20.6
24.8
7.6
6.3
9.2
96
6/3/2023
22.1
20.8
26.0
8.0
7.2
9.5
96

Table 1: Tillery Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
6/4/2023
21.6
20.8
23.2
7.5
6.1
9.6
96
6/5/2023
21.3
20.6
23.4
7.4
6.1
9.6
96
6/6/2023
21.5
20.6
24.7
7.5
6.2
9.6
96
6/7/2023
21.7
20.9
24.5
7.5
6.4
9.4
96
6/8/2023
22.3
21.1
25.3
7.6
6.3
9.3
96
6/9/2023
22.3
21.2
25.9
7.3
6.2
8.9
96
6/10/2023
22.2
21.2
25.6
7.3
6.2
8.9
96
6/11/2023
21.9
20.9
24.6
6.9
5.3
8.9
96
6/12/2023
21.3
20.7
21.8
6.3
5.6
7.4
96
6/13/2023
22.4
21.7
25.6
7.1
6.0
9.2
96
6/14/2023
22.2
21.5
25.3
7.0
6.0
9.1
96
6/15/2023
22.3
21.7
24.8
7.0
6.1
9.2
96
6/16/2023
22.5
22.0
25.4
7.0
6.2
9.0
96
6/17/2023
23.6
22.3
27.2
7.4
6.2
8.9
96
6/18/2023
23.1
22.1
26.7
6.8
5.7
8.6
96
6/19/2023
22.3
21.6
23.6
6.6
5.8
8.3
96
6/20/2023
22.3
21.8
22.7
6.7
6.0
7.7
96
6/21/2023
22.9
22.6
23.4
7.2
6.9
8.0
96
6/22/2023
23.0
22.7
23.4
6.9
6.1
7.8
96
6/23/2023
22.9
22.7
23.0
6.9
6.3
7.5
96
6/24/2023
23.0
22.8
23.2
7.1
6.8
7.4
96
6/25/2023
23.4
23.1
23.7
7.2
7.0
7.5
96
6/26/2023
23.3
23.2
23.5
6.9
6.3
7.2
96
6/27/2023
24.0
23.3
25.3
7.4
6.8
8.1
96
6/28/2023
24.1
23.9
24.5
7.0
6.5
7.3
96
6/29/2023
24.2
24.0
25.0
6.7
6.4
7.4
96
6/30/2023
24.4
23.8
26.2
6.9
5.6
8.7
96
7/1/2023
24.8
23.8
26.8
7.2
5.4
9.1
96
7/2/2023
25.1
24.2
27.2
7.2
5.4
9.1
96
7/3/2023
24.7
24.0
25.9
6.8
5.5
9.1
96
7/4/2023
25.6
24.8
28.2
7.1
5.5
9.3
96
7/5/2023
25.6
24.5
27.4
7.0
5.6
9.2
96
7/6/2023
25.8
24.8
28.0
7.0
5.3
9.1
96
7/7/2023
26.2
25.0
28.8
7.0
5.3
8.9
96
7/8/2023
26.0
25.0
27.4
7.1
5.5
9.1
96
7/9/2023
26.3
25.3
29.0
7.1
5.8
8.9
96
7/10/2023
26.0
25.0
27.4
6.4
5.0
8.4
96
7/11/2023
26.1
25.2
28.0
6.8
5.3
8.7
96
10

Table 1: Tillery Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
7/12/2023
26.3
25.2
27.7
7.1
5.0
8.7
96
7/13/2023
26.1
25.0
27.6
7.1
4.9
8.7
96
7/14/2023
25.9
25.0
28.0
6.5
4.6
8.6
96
7/15/2023
26.0
25.2
27.9
6.9
5.6
8.4
96
7/16/2023
26.5
25.4
28.7
6.9
5.5
8.5
96
7/17/2023
27.1
25.8
28.5
6.7
5.5
8.2
96
7/18/2023
26.2
25.5
27.4
6.2
5.4
7.7
96
7/19/2023
26.2
25.6
26.7
6.1
5.1
7.0
96
7/20/2023
26.6
26.2
27.5
6.1
4.8
7.4
96
7/21/2023
26.7
26.1
27.2
6.4
5.0
7.5
96
7/22/2023
27.4
26.4
28.8
6.2
5.0
7.4
96
7/23/2023
27.7
26.9
29.0
6.4
5.4
7.6
96
7/24/2023
27.7
26.5
31.0
6.1
5.0
7.6
96
7/25/2023
27.1
26.5
28.7
5.9
5.1
7.4
96
7/26/2023
27.2
26.6
29.6
5.9
5.0
7.3
96
7/27/2023
26.9
26.4
28.9
5.7
4.9
7.8
96
7/28/2023
27.2
26.4
29.2
6.2
5.0
7.9
96
7/29/2023
27.3
26.7
29.0
6.6
5.5
8.0
96
7/30/2023
28.2
27.2
30.2
6.2
5.0
7.4
96
7/31/2023
28.6
27.0
30.3
6.1
4.9
7.3
96
8/1/2023
27.9
27.2
29.5
6.3
5.3
7.6
94
8/2/2023
28.5
27.4
30.0
6.5
5.5
7.5
96
8/3/2023
27.3
26.7
27.8
6.2
5.0
7.2
96
8/4/2023
27.5
26.8
28.7
6.5
5.4
7.4
96
8/5/2023
28.3
27.3
29.9
6.4
5.4
7.4
96
8/6/2023
27.9
26.9
29.4
6.3
5.5
7.2
96
8/7/2023
27.5
27.0
29.4
6.3
5.6
7.5
96
8/8/2023
27.6
27.2
28.0
6.7
5.4
7.7
96
8/9/2023
27.6
27.4
28.0
6.3
6.1
6.6
96
8/10/2023
27.7
27.5
28.2
6.0
5.3
7.1
96
8/11/2023
27.8
27.2
29.3
6.1
5.2
7.4
96
8/12/2023
28.1
27.4
29.7
6.2
5.1
7.4
96
8/13/2023
28.5
27.6
30.0
6.2
5.0
7.3
96
8/14/2023
28.5
27.9
29.8
6.2
5.2
7.0
96
8/15/2023
28.0
27.6
28.9
5.8
5.0
7.1
96
8/16/2023
28.8
27.7
30.6
6.2
5.2
7.0
96
8/17/2023
28.9
28.2
29.9
6.0
5.2
6.9
96
8/18/2023
28.7
27.7
29.7
6.1
5.3
7.1
96
8/19/2023
28.8
28.0
30.2
6.4
5.4
7.3
96
8/20/2023
29.1
28.1
30.7
6.2
5.4
7.0
96
11

Table 1: Tillery Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
8/21/2023
28.8
28.2
30.2
6.2
5.4
7.4
96
8/22/2023
29.0
28.4
30.6
6.1
5.2
7.2
96
8/23/2023
29.0
28.4
30.4
6.1
5.3
7.2
96
8/24/2023
28.9
28.1
30.5
6.0
5.3
7.2
96
8/25/2023
29.1
28.4
30.7
6.0
5.2
7.1
96
8/26/2023
29.1
28.2
30.5
6.1
5.2
7.3
96
8/27/2023
29.3
28.4
30.9
6.1
5.0
7.2
96
8/28/2023
29.0
28.3
30.4
6.3
5.3
7.2
96
8/29/2023
29.0
28.4
30.2
6.2
5.5
7.5
96
8/30/2023
28.7
28.5
29.0
5.9
5.3
6.9
96
8/31/2023
28.5
28.0
29.2
6.2
5.6
7.3
96
9/1/2023
28.4
27.8
29.4
6.0
5.0
7.4
96
9/2/2023
28.3
27.4
29.5
6.7
5.9
7.6
96
9/3/2023
28.4
27.4
29.7
6.6
5.2
7.7
96
9/4/2023
28.1
27.4
28.5
5.9
5.3
7.4
96
9/5/2023
28.3
27.8
28.7
5.9
5.2
7.4
96
9/6/2023
28.5
28.0
29.2
6.0
5.0
7.0
96
9/7/2023
28.3
28.1
28.8
5.9
4.5
7.3
96
9/8/2023
28.3
27.6
29.8
6.4
5.4
7.4
96
9/9/2023
28.0
27.7
28.7
6.4
5.6
7.4
90
9/10/2023
28.2
27.6
29.4
6.3
5.6
7.5
96
9/11/2023
28.3
27.7
29.0
6.2
5.3
7.0
96
9/12/2023
28.2
27.8
28.9
6.2
5.3
7.2
91
9/13/2023
28.0
27.6
28.6
6.2
5.6
7.2
96
9/14/2023
28.1
27.7
28.6
6.4
5.7
7.4
96
9/15/2023
28.0
27.7
28.2
6.3
5.6
7.0
96
9/16/2023
27.6
26.7
28.9
6.2
5.5
7.6
96
9/17/2023
27.2
26.7
27.7
6.0
5.6
6.9
96
9/18/2023
27.1
26.5
28.2
6.3
5.7
7.7
96
9/19/2023
27.1
26.2
28.4
6.6
5.9
7.8
96
9/20/2023
26.9
26.2
28.3
6.6
5.5
8.1
96
9/21/2023
26.6
26.0
27.8
6.9
5.9
8.2
96
9/22/2023
26.1
25.3
26.8
6.9
5.8
8.4
95
9/23/2023
25.1
24.6
25.7
7.0
6.0
8.0
96
9/24/2023
25.7
24.9
26.9
7.1
5.9
8.3
96
9/25/2023
26.0
25.0
28.1
7.1
6.0
8.9
91
9/26/2023
25.4
24.9
26.2
6.7
6.0
8.7
96
9/27/2023
24.9
24.4
25.5
6.6
6.1
8.7
96
12

Table 1: Tillery Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
9/28/2023
24.6
24.0
26.0
7.1
6.3
9.0
96
9/29/2023
25.0
24.0
27.4
7.2
6.2
8.9
96
9/30/2023
24.5
23.8
25.9
7.3
6.2
9.1
96
10/1/2023
24.7
23.6
26.7
7.5
6.6
9.0
96
10/2/2023
24.4
23.5
26.1
7.2
6.5
9.0
96
10/3/2023
24.7
23.5
27.0
7.4
6.4
9.1
96
10/4/2023
24.6
23.6
26.6
7.3
6.5
9.1
96
10/5/2023
24.3
23.3
26.3
7.1
6.3
9.0
96
10/6/2023
24.5
24.0
26.0
7.1
6.3
9.1
96
10/7/2023
24.1
22.7
25.6
7.4
6.3
9.0
96
10/8/2023
23.3
22.2
25.0
7.6
6.6
9.2
96
10/9/2023
23.1
21.8
25.1
7.5
6.6
9.1
96
10/10/2023
23.2
22.0
25.3
7.6
6.3
9.4
96
10/11/2023
22.8
21.9
23.9
7.2
6.2
9.0
96
10/12/2023
23.0
22.2
24.5
7.5
6.0
9.5
96
10/13/2023
23.0
21.7
25.3
7.6
6.0
9.4
96
10/14/2023
22.6
22.2
23.4
7.3
5.9
9.3
96
10/15/2023
21.7
21.0
22.4
7.7
6.2
9.3
96
10/16/2023
21.6
20.4
22.6
7.7
6.6
9.6
96
10/17/2023
21.7
19.8
23.9
7.8
6.5
9.7
96
10/18/2023
21.8
21.1
23.1
8.2
7.0
9.8
96
10/19/2023
21.5
20.4
22.8
8.0
7.1
9.8
96
10/20/2023
21.2
20.6
22.0
7.8
6.9
9.8
95
10/21/2023
21.3
19.9
22.9
7.9
6.8
9.9
96
10/22/2023
20.9
19.4
22.0
8.0
6.8
9.8
96
10/23/2023
20.8
19.6
22.4
8.5
7.3
10.0
96
10/24/2023
20.4
19.1
22.3
8.5
7.2
10.2
96
10/25/2023
20.4
19.1
22.4
8.5
7.2
10.2
96
10/26/2023
20.3
19.3
22.4
8.5
6.9
10.3
96
10/27/2023
20.3
19.4
22.4
8.4
6.8
10.4
96
10/28/2023
20.3
19.3
22.4
8.5
6.9
10.4
96
10/29/2023
20.3
19.4
22.2
8.6
6.9
10.4
96
10/30/2023
20.5
19.6
22.2
8.4
6.7
10.3
96
10/31/2023
19.9
19.5
20.3
8.0
7.1
9.2
96
11/1/2023
18.9
17.8
19.6
8.7
7.4
10.2
96
11/2/2023
18.5
17.4
20.0
8.9
7.7
10.6
96
11/3/2023
18.5
17.1
20.2
8.9
7.7
10.6
96
11/4/2023
18.2
16.6
20.0
9.0
7.9
10.6
96
13

Table 1: Tillery Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
11/5/2023
18.2
17.1
19.8
8.9
8.1
10.6
100a
11/6/2023
18.2
17.2
20.0
8.9
7.7
10.9
94
11/7/2023
18.0
17.0
20.0
9.2
7.9
11.0
96
11/8/2023
18.0
17.0
19.9
9.3
8.0
11.2
96
11/9/2023
17.9
17.0
19.8
9.2
7.7
11.2
96
11/10/2023
17.8
17.3
19.2
9.2
8.1
11.1
96
11/11/2023
17.4
17.1
17.6
9.1
8.0
10.6
96
11/12/2023
17.3
16.6
18.4
9.5
8.2
11.3
96
11/13/2023
17.2
16.3
18.8
9.4
8.2
11.2
96
11/14/2023
17.0
16.0
18.6
9.5
8.2
11.3
96
11/15/2023
16.7
16.0
17.5
9.5
8.1
11.3
96
11/16/2023
16.9
16.2
18.2
9.6
8.4
11.4
96
11/17/2023
17.0
16.2
18.4
9.5
8.3
11.4
96
11/18/2023
17.3
16.5
19.0
9.4
8.3
11.0
96
11/19/2023
16.7
15.7
18.3
9.5
8.2
11.3
96
11/20/2023
16.4
15.4
17.8
9.6
8.3
11.5
96
11/21/2023
16.3
15.9
16.8
9.2
8.2
10.5
96
11/22/2023
16.4
15.6
17.5
9.6
8.9
11.2
96
11/23/2023
16.0
15.2
17.7
9.8
9.0
11.3
96
11/24/2023
15.6
15.2
16.4
9.9
9.0
11.3
96
11/25/2023
15.4
14.8
16.7
10.0
9.2
11.6
96
11/26/2023
15.0
14.5
15.7
9.9
9.2
11.5
96
11/27/2023
15.1
14.2
16.3
10.0
9.3
11.4
96
11/28/2023
14.5
13.9
15.6
10.0
8.7
11.4
96
11/29/2023
14.2
13.4
15.1
10.0
8.6
11.5
96
11/30/2023
14.2
12.4
16.2
9.7
8.3
11.6
96
'Daylight savings time.
14

Table 2. Daily average, minimum, and maximum DO (mg/L) and water temperature (Deg Q
measured downstream of the Blewett Falls Development (USGS Station No.
0212880025) May 1- November 30, 2023.
Table 2: Blewett Falls Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
5/1/2023
18.1
17.8
18.3
8.4
8.2
8.8
96
5/2/2023
18.1
18.0
18.3
8.2
8.0
8.4
96
5/3/2023
18.0
17.7
18.4
8.3
8.1
8.6
96
5/4/2023
18.2
17.7
18.9
8.8
8.4
9.4
96
5/5/2023
18.2
18.1
18.3
8.8
8.5
9.1
96
5/6/2023
18.7
18.1
19.1
8.9
8.5
9.4
96
5/7/2023
19.5
18.8
20.3
9.5
8.7
10.5
96
5/8/2023
20.4
19.9
21.1
9.5
8.9
10.3
96
5/9/2023
21.0
20.4
21.8
9.4
8.7
10.4
96
5/10/2023
21.2
21.0
21.4
9.0
8.5
9.5
96
5/11/2023
21.4
21.2
21.8
8.6
7.9
9.1
96
5/12/2023
21.6
21.2
22.0
8.4
7.7
9.2
96
5/13/2023
22.0
21.6
22.4
8.0
7.0
8.8
96
5/14/2023
22.6
22.2
23.3
8.4
7.7
9.6
96
5/15/2023
22.7
22.3
23.0
8.1
7.6
8.6
96
5/16/2023
22.8
22.4
23.3
8.5
8.1
9.1
96
5/17/2023
23.3
22.7
23.8
7.7
7.0
8.5
96
5/18/2023
22.9
22.7
23.3
7.1
6.5
7.6
96
5/19/2023
22.4
22.0
23.0
8.0
7.5
8.4
92
5/20/2023
21.7
21.5
22.0
8.4
8.1
9.1
96
5/21/2023
21.5
21.2
21.8
8.0
7.5
8.5
96
5/22/2023
21.8
21.5
22.2
8.3
7.6
9.2
96
5/23/2023
22.3
22.0
22.5
8.8
8.0
9.2
96
5/24/2023
22.6
22.4
22.9
9.4
8.9
10.2
96
5/25/2023
22.4
22.1
22.7
8.9
8.4
9.5
96
5/26/2023
21.9
21.3
22.2
9.1
8.4
9.7
96
5/27/2023
20.6
20.0
21.3
8.7
8.3
9.4
96
5/28/2023
19.6
19.5
20.0
8.3
8.2
8.6
96
5/29/2023
19.6
19.4
19.9
8.4
8.1
8.8
96
5/30/2023
19.7
19.5
20.4
8.5
8.1
9.5
96
5/31/2023
20.6
20.3
21.1
8.6
8.0
9.4
96
6/1/2023
21.3
20.9
21.9
8.1
7.8
8.6
96
6/2/2023
21.8
21.6
22.3
8.1
7.7
8.9
96
6/3/2023
22.5
22.3
22.8
8.8
8.4
9.2
96
15

Table 2: Blewett Falls Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
6/4/2023
23.1
22.7
23.4
8.6
8.2
9.1
96
6/5/2023
23.1
22.9
23.3
8.4
7.9
8.9
96
6/6/2023
22.9
22.5
23.8
8.4
7.3
9.9
96
6/7/2023
22.9
22.5
23.5
9.1
8.2
10.1
96
6/8/2023
23.3
22.9
24.0
9.2
8.7
10.5
96
6/9/2023
23.4
23.0
23.8
8.6
8.0
9.1
96
6/10/2023
23.3
22.9
23.6
8.5
8.1
9.0
96
6/11/2023
22.9
22.7
23.1
7.7
7.2
8.5
95
6/12/2023
23.5
22.9
24.7
8.2
7.1
10.0
95
6/13/2023
24.6
24.2
25.2
8.5
7.9
9.4
96
6/14/2023
24.4
23.9
24.8
7.8
7.0
8.8
96
6/15/2023
24.3
24.0
24.5
7.8
7.3
8.3
96
6/16/2023
24.6
24.0
25.4
8.2
7.2
9.4
96
6/17/2023
25.2
24.7
26.0
8.8
7.8
9.9
96
6/18/2023
25.1
24.7
25.7
8.2
6.9
9.3
96
6/19/2023
24.9
24.5
25.6
7.6
6.6
8.8
96
6/20/2023
25.5
24.5
25.9
8.7
8.1
9.3
95
6/21/2023
23.3
23.0
24.5
7.7
7.2
8.1
95
6/22/2023
23.0
22.8
23.3
7.2
6.9
7.4
96
6/23/2023
23.2
23.1
23.3
7.2
7.0
7.5
95
6/24/2023
23.2
23.0
23.6
7.0
6.8
7.2
96
6/25/2023
23.6
23.4
23.9
7.0
6.7
7.3
96
6/26/2023
24.4
23.9
25.0
7.1
6.9
7.6
96
6/27/2023
25.3
24.7
26.2
7.4
7.0
8.1
96
6/28/2023
25.5
25.0
26.2
7.4
6.9
8.5
96
6/29/2023
25.9
25.8
26.2
7.3
7.0
7.7
95
6/30/2023
25.8
25.5
26.0
6.8
6.3
7.3
96
7/1/2023
25.7
25.5
26.0
6.8
6.2
7.5
96
7/2/2023
26.0
25.6
26.5
7.0
6.4
7.6
96
7/3/2023
26.5
25.9
27.0
6.8
6.2
7.6
95
7/4/2023
27.6
26.7
28.7
6.9
6.0
8.1
95
7/5/2023
27.7
27.4
28.0
6.4
5.8
7.0
96
7/6/2023
27.9
27.6
28.2
6.6
6.3
7.0
96
7/7/2023
28.0
27.7
28.4
6.6
5.8
7.2
96
7/8/2023
28.2
27.7
28.7
6.3
5.4
6.8
96
7/9/2023
28.2
27.7
29.0
6.0
5.1
7.4
96
7/10/2023
28.3
28.0
28.8
5.7
4.5
6.8
96
7/11/2023
28.1
27.9
28.4
6.3
4.9
7.0
96
7/12/2023
27.9
27.4
28.3
6.3
5.7
7.2
94
16

Table 2: Blewett Falls Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
7/13/2023
27.6
27.1
28.1
6.3
5.7
7.2
96
7/14/2023
27.9
27.5
28.5
6.0
5.3
6.9
96
7/15/2023
28.5
28.1
29.0
6.1
5.5
6.9
94
7/16/2023
28.9
28.3
29.6
6.5
5.7
7.4
96
7/17/2023
28.9
28.6
29.4
6.9
6.0
8.1
96
7/18/2023
28.7
28.2
29.0
6.6
5.6
7.5
95
7/19/2023
28.8
28.3
29.4
7.6
6.8
8.7
95
7/20/2023
28.7
28.3
29.1
7.5
7.2
8.0
96
7/21/2023
28.8
28.2
29.4
8.3
7.1
9.4
95
7/22/2023
28.7
28.5
29.0
7.8
7.1
8.5
95
7/23/2023
28.4
28.0
28.7
7.2
6.2
8.0
96
7/24/2023
28.1
27.8
28.6
6.9
5.6
8.4
95
7/25/2023
28.4
28.1
28.9
7.3
6.5
8.7
96
7/26/2023
28.8
28.3
29.3
7.9
6.8
9.3
95
7/27/2023
28.9
28.5
29.2
7.1
6.5
7.7
96
7/28/2023
29.1
28.6
29.4
7.3
6.6
8.2
96
7/29/2023
29.2
28.8
29.5
7.0
6.1
8.0
96
7/30/2023
29.6
28.9
30.3
7.1
6.1
8.1
96
7/31/2023
29.6
29.2
29.9
6.1
5.5
6.7
96
8/1/2023
29.1
29.0
29.3
6.0
5.2
6.7
96
8/2/2023
28.9
28.7
29.1
6.3
5.4
7.3
96
8/3/2023
28.6
28.5
28.8
6.7
5.8
7.6
96
8/4/2023
28.4
28.3
28.5
7.3
7.0
7.5
96
8/5/2023
28.2
28.0
28.5
7.1
6.6
7.8
96
8/6/2023
27.8
27.6
28.0
6.5
6.3
6.8
95
8/7/2023
28.1
27.6
29.1
7.0
5.9
9.2
96
8/8/2023
28.8
28.4
29.5
8.2
7.2
9.4
95
8/9/2023
29.0
28.7
29.3
7.8
7.0
8.5
96
8/10/2023
28.7
28.5
28.9
7.6
6.8
8.8
96
8/11/2023
28.5
28.3
28.6
7.5
7.0
7.9
95
8/12/2023
28.4
28.2
28.6
6.7
6.3
7.2
96
8/13/2023
28.8
28.3
29.5
6.8
5.6
8.5
94
8/14/2023
29.0
28.4
29.6
6.3
6.3
6.3
1b
8/15/2023
29.5
28.8
30.2
7.2
6.3
7.8
53'
8/16/2023
30.0
29.7
30.2
6.8
6.3
7.2
96
8/17/2023
29.8
29.6
30.0
5.9
5.6
6.4
96
8/18/2023
29.6
29.3
30.0
6.4
5.8
7.1
96
8/19/2023
29.4
29.2
29.7
6.9
6.3
7.3
95
8/20/2023
29.2
29.0
29.6
7.1
6.4
7.8
95
17

Table 2: Blewett Falls Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
8/21/2023
29.4
29.0
30.1
7.2
6.1
8.8
96
8/22/2023
29.8
29.6
30.3
7.6
6.8
8.2
96
8/23/2023
29.8
29.6
30.0
7.0
6.3
7.5
96
8/24/2023
29.6
29.4
30.2
6.9
6.0
8.5
96
8/25/2023
29.4
29.2
29.7
6.8
6.2
7.6
96
8/26/2023
29.3
29.1
29.7
6.5
5.9
7.4
95
8/27/2023
29.7
29.4
30.0
6.9
6.0
7.7
96
8/28/2023
29.7
29.4
30.0
6.3
5.3
7.3
96
8/29/2023
29.9
29.7
30.2
6.1
5.5
6.7
96
8/30/2023
29.3
28.8
29.7
5.5
5.1
6.7
95
8/31/2023
28.1
27.8
28.8
5.9
5.5
6.1
96
9/1/2023
27.5
27.3
27.9
5.9
5.7
6.1
96
9/2/2023
27.4
27.2
27.7
6.2
5.8
6.7
96
9/3/2023
27.2
27.0
27.4
6.2
6.0
6.4
95
9/4/2023
27.4
27.0
28.1
6.7
5.6
8.6
96
9/5/2023
27.7
27.2
28.3
6.8
6.2
7.8
96
9/6/2023
28.4
28.1
28.8
6.9
6.4
7.5
96
9/7/2023
28.9
28.6
29.3
6.1
4.9
6.8
96
9/8/2023
29.1
28.8
29.4
6.8
5.3
7.6
96
9/9/2023
28.9
28.8
29.1
6.0
5.2
6.9
96
9/10/2023
28.8
28.6
29.0
6.1
5.5
6.6
96
9/11/2023
28.3
28.2
28.5
6.8
5.8
7.8
96
9/12/2023
27.7
27.2
28.2
5.8
5.1
6.8
96
9/13/2023
27.6
27.3
28.1
6.3
5.5
7.5
95
9/14/2023
27.8
27.7
28.0
6.5
5.9
7.2
95
9/15/2023
27.6
27.4
27.8
7.0
6.0
7.9
96
9/16/2023
27.1
26.8
27.4
7.0
6.5
7.4
96
9/17/2023
26.7
26.6
26.8
6.7
6.2
7.1
96
9/18/2023
26.5
26.2
26.7
7.0
6.6
7.5
96
9/19/2023
26.1
25.8
26.4
6.7
6.3
7.2
96
9/20/2023
25.8
25.6
26.0
6.7
6.1
7.8
95
9/21/2023
25.8
25.7
25.9
7.1
6.5
7.9
88
9/22/2023
25.5
25.0
25.7
7.8
6.9
8.3
96
9/23/2023
24.3
24.1
25.0
7.6
7.5
7.8
96
9/24/2023
24.0
23.8
24.1
7.5
7.3
7.6
96
9/25/2023
24.1
23.8
24.6
7.3
6.9
8.0
96
9/26/2023
24.1
24.0
24.3
7.3
6.8
7.8
96
9/27/2023
24.1
24.0
24.2
7.6
7.2
8.0
96
9/28/2023
23.7
23.6
23.9
7.5
7.3
7.8
95
18

Table 2: Blewett Falls Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
9/29/2023
23.8
23.6
24.0
7.6
7.2
8.2
96
9/30/2023
23.7
23.6
23.8
7.3
7.0
7.6
96
10/1/2023
23.5
23.4
23.8
7.4
7.0
7.8
96
10/2/2023
23.5
23.3
23.8
7.5
7.2
8.2
96
10/3/2023
23.5
23.4
23.8
7.7
7.2
8.3
96
10/4/2023
23.7
23.4
24.0
7.8
7.0
8.6
95
10/5/2023
23.7
23.5
24.0
7.9
7.1
8.6
96
10/6/2023
24.0
23.6
24.4
8.4
7.1
9.6
96
10/7/2023
24.1
23.7
24.3
8.2
7.0
9.1
96
10/8/2023
23.3
23.1
23.7
8.1
7.7
8.5
96
10/9/2023
22.6
22.4
23.0
7.9
7.6
8.3
96
10/10/2023
22.2
21.8
22.4
7.6
7.1
7.8
96
10/11/2023
21.7
21.6
21.8
7.2
6.8
7.5
96
10/12/2023
21.4
21.3
21.6
7.0
6.8
7.4
95
10/13/2023
21.3
21.1
21.4
7.3
6.9
7.6
96
10/14/2023
21.1
21.0
21.3
7.6
7.2
8.1
96
10/15/2023
21.0
20.7
21.2
7.8
7.5
8.0
96
10/16/2023
20.4
20.2
20.7
7.7
7.5
7.9
96
10/17/2023
19.9
19.7
20.2
7.9
7.4
8.4
96
10/18/2023
19.8
19.6
19.9
7.8
7.6
8.0
96
10/19/2023
19.4
19.3
19.6
7.8
7.4
8.2
96
10/20/2023
19.4
19.3
19.6
8.2
7.9
8.7
96
10/21/2023
19.5
19.4
19.7
8.5
8.3
8.7
96
10/22/2023
19.6
19.4
19.8
8.2
8.0
8.5
96
10/23/2023
19.5
19.4
19.8
8.0
7.8
8.1
96
10/24/2023
19.4
19.2
19.6
7.9
7.6
8.3
96
10/25/2023
19.2
19.0
19.5
8.1
7.8
8.6
96
10/26/2023
19.1
18.9
19.4
8.2
7.9
8.7
95
10/27/2023
19.1
19.0
19.3
7.9
7.6
8.2
96
10/28/2023
19.3
19.1
19.7
7.8
7.5
8.4
96
10/29/2023
19.7
19.3
20.3
8.0
7.2
9.1
96
10/30/2023
20.0
19.5
20.6
8.1
6.9
9.2
96
10/31/2023
20.1
19.8
20.3
8.3
7.7
8.8
94
11/1/2023
19.2
18.6
19.8
8.5
8.3
8.8
95
11/2/2023
18.3
18.0
18.6
8.7
8.5
9.0
96
11/3/2023
17.5
17.1
18.0
8.7
8.4
8.9
96
11/4/2023
16.6
16.3
17.0
8.6
8.2
9.0
96
19

Table 2: Blewett Falls Development
Date
Daily
Avg Temp
(Deg Q
Daily
Min Temp
(Deg Q
Daily
Max Temp
(Deg Q
Daily
Avg DO
(mg/L)
Daily
Min DO
(mg/L)
Daily
Max DO
(mg/L)
N
11/5/2023
16.1
15.9
16.3
8.9
8.5
9.4
99a
11/6/2023
15.7
15.5
16.0
8.8
8.6
9.1
96
11/7/2023
15.5
15.3
15.7
8.8
8.4
9.2
95
11/8/2023
15.6
15.4
15.9
9.1
8.7
9.4
95
11/9/2023
15.7
15.6
15.9
8.8
8.4
9.3
96
11/10/2023
16.3
15.8
16.8
9.1
8.6
9.7
96
11/11/2023
16.6
16.5
16.7
9.1
8.5
9.4
96
11/12/2023
16.5
16.3
16.6
8.6
8.3
8.8
96
11/13/2023
16.2
16.0
16.4
8.7
8.4
9.0
95
11/14/2023
16.0
15.9
16.2
8.6
8.4
8.8
96
11/15/2023
15.7
15.6
15.9
8.4
8.2
8.6
96
11/16/2023
15.5
15.3
15.6
8.3
8.0
8.5
96
11/17/2023
15.3
15.2
15.6
8.2
7.9
8.6
96
11/18/2023
15.8
15.4
16.4
8.6
8.1
9.3
95
11/19/2023
15.7
15.4
15.9
8.4
8.1
8.7
96
11/20/2023
15.3
15.2
15.5
8.4
8.0
8.8
96
11/21/2023
15.2
15.2
15.3
8.5
8.4
8.6
96
11/22/2023
15.5
15.3
15.7
8.6
8.3
8.9
95
11/23/2023
15.3
15.2
15.6
8.6
8.4
8.8
96
11/24/2023
15.1
15.0
15.2
8.4
8.2
8.6
96
11/25/2023
14.8
14.5
15.0
8.5
8.4
8.6
96
11/26/2023
14.2
13.9
14.5
8.5
8.4
8.7
96
11/27/2023
13.8
13.6
14.0
8.6
8.4
8.8
95
11/28/2023
13.3
13.0
13.6
8.7
8.6
8.8
96
11/29/2023
12.6
12.2
13.0
8.7
8.5
8.8
96
11/30/2023
11.8
11.3
12.2
8.5
8.2
8.8
96
'Daylight savings time.
'Please note the DO monitoring sonde experienced biofouling on these dates which resulted in
missing data after USGS data review (See Table 3 for description of sonde field examination.).
20

Table 3. Maintenance/calibration dates for USGS water quality stations at the Tillery and
Blewett Falls developments during the 2023 water quality monitoring period.
Tillery Development: USGS Station No. 0212378405
Date
Time
Explanation
2023-01-06
11:49:00-05:00
Site visit to close out GH for Duke records, mmt75, dcp battery 13.6v
(13.2v under load), taped diver 0.78ft (same as last, left at 0.78ft), s13 gave
gps antenna not detected status error even though last sync to gps was at
1/6/23 16:56, since there are random missed TXs as well - decided to
remove s13-1807119 and deploy sl3-1807179, confirmed good gps sync on
new s13, replaced dcp battery, new battery 14.4v, downloaded
diver/baro/dcp data.
2023-01-11
10:34:00-05:00
Routine site visit to get baseflow mmt 76, no svc on diver/baro since it was
taken care of during visit on 1/6/23, dcp battery 14.7v (13.7v under load),
downloaded dcp data.
2023-03-30
09:20:00-05:00
Routine service/mmt 77, removed 1 35amp/hr battery and deployed 2
fresh 35amp/hr batteries, inventory: sl3-1807179, rls-300292877, taped
diver 0.78ft (same as last, left at 0.78ft), downloaded diver/baro/dcp data,
changed baro from 15min fixed to 5min fixed.
2023-04-13
08:43:00-05:00
Deploy QW sonde at request of Duke, dcp battery 14.4v (13.8v under
load), used field sonde SN 733343 using DO 818917, temp 738356;
deployed sonde SN 733212 using DO 818934, temp 784041; brushed out
sonde deployment tube, gave at least 10min acclimation time for final
readings, sonde wiper set to every 30min, taped diver 0.78ft (same as last,
left at 0.78ft), downloaded diver/baro/dcp data, confirmed with RROC
they were receiving DO values.
2023-05-17
08:56:00-05:00
Routine service/mmt78/QW probe swap/QW cross section, taped diver
0.78ft (same as last, left at 0.78ft), downloaded diver/baro/dcp data, dcp
battery 13.8v (13.5v under load). Minor biofouling on outside of
sonde/probe faces.
2023-08-01
08:26:00-05:00
Routine service/qw maintenance & probe swap/mmt 79, dcp battery 14.2v
(13.3v under load), taped diver 0.78ft (same as last, left at 0.78ft),
downloaded diver/baro/dcp data. Minor biofouling on outside of
sonde/probe faces.
2023-09-25
09:04:00-05:00
Routine service/qw probe swap/replace low sonde batteries/investigate
comms drop outs recently, dcp battery 14.5v (13.7v under load), sdi no
reply errors on 9/9, 9/10, 9/12, telemetry status shows no failed TXs,
downloaded s13 diagnostics, removed 2 35amp/hr agm batteries, deployed
146amp/hr LiFePO4 battery, updated solar regulator for lithium,
downloaded dcp data, removed sl3-1807179, deployed sl31-23020445,
sonde by shows on sl31 as 11.75v, verified good gps sync, verified good TX,
found sonde at site having comms issues and "instrument open" errors,
replaced sonde at site, verified sonde batteries still at 81% capacity, set to
log internally every 15min set to phone time EDT, mmt 80, taped diver
0.78ft (same as last, left at 0.78ft), downloaded diver/baro data, confirmed
with RROC they are receiving good DO values, confirmed with Wendi good
TXs. Moderate biofouling on outside of sonde and probe faces.
21

Table 3. (continued)
Tillery Develo ment: USGS Station No. 0212378405
Date
Time
Explanation
2023-11-06
10:28:00-05:00
Routine service/qw probe swap/mmt 81, dcp battery 14.2v (14v under
load), downloaded data, downloaded sonde log, qw readings side by side
in river given —5min acclimation time, started new log after qw probe
swap, no diver kit in truck - no service on diver/baro this visit, verified
good QW mmts at sl3l. Minor biofouling mainly on outside of sonde.
2023-12-07
09:32:00-05:00
Remove sonde for end of QW season/QW cross section, dcp battery 13.6v
(13.3v under load), no service on diver/baro this visit, downloaded dcp
data. Removed sonde for end of qw season. Capped end of sonde cable
and applied dielectric water proofing. filler to connection. Little to no
fouling found on sonde.
22

Table 3. (continued)
Blewett Falls Development: USGS Station No. 0212880025
Date
Time
Explanation
2023-01-06
10:39:00-05:00
Site visit to close out GH for Duke records, dcp battery 13.4v (13.Ov
under load), taped diver 0.72ft (same as last, left at 0.72ft),
downloaded diver/baro/dcp data, partial site inventory: susle-
1912080, sucb-1901137, It15g-10011. Site visit for routine temp probe
swap, no svc on diver/baro, gh readings taken during dam generation,
dcp battery 13.4v (13.1v under load), downloaded dcp data. Minor
biofouling on outside of sonde and on probe faces - cleaned.
2023-03-22
11:31:00-05:00
Conducted readings with site sonde removed from tube and side -by -
side with field sonde with several minutes of equilibration time
between readings, brushed out sonde tube. only temp probe swap -
no DO probe. Minor very minor biofouling on outside of sonde and
even less on probes. brushed and cleaned anyways.
2023-04-12
09:17:00-05:00
Deploy DO sensor for season at request of Duke, field sonde SN
733343 using DO 818917, temp 738356. site sonde as found 733172
using temp 783632, upgraded site sonde from firmware 2.29 to 2.32,
deployed temp 748085, DO 751625, set to wipe every 30min, gave
10min acclimation for final readings, taped diver 0.71ft (0.72ft before,
left at 0.71ft), downloaded diver/baro/dcp data, dcp battery 13.3v
(13v under load), called and confirmed good DO read with RROC.
Removed logs piled up around site sonde deployment pipe, cleaned
sonde and brushed out sonde tube. Sonde brush good. took all
readings side -by -side outside deployment tube. Minor biofouling on
sonde/probe faces - cleaned.
2023-05-19
09:50:00-05:00
Routine service/qw probe swap, taped diver 0.71ft (same as last, left
at 0.71ft), downloaded diver/baro/dcp data, dcp battery 13.1v (12.9v
under load), hardware error 5134 no gps detected occurred 2 times -
will monitor. Brushed out sonde tube.
Moderate biofouling/algae/worms on outside of sonde,
moderate/heavy on probe faces.
2023-07-12
0:05:00-05:00
Routine service and probe swap, all readings side by side from floating
platform edge, 10min given for acclimation each read, taped diver
0.71ft (same as last, left at 0.71ft), downloaded diver/baro/dcp data,
dcp battery 13v (12.7 under load). Moderate biofouling on outside of
sonde. Some worms on probe faces. Cleaned.
2023-08-15
09:04:00-05:00
Sonde swap and check for Duke per request. Changed sensors from
sonde with new calibrated ones. Moderate bio fouling and silt/mud.
2023-09-21
09:24:00-05:00
Routine service and qw maintenance/probe swap, QW cross section,
taped diver 0.71ft (same as last, left atO.71ft), downloaded
diver/baro/dcp data. Moderate biofouling on outside of sonde,
worms/silt on probe faces, pics taken.
23

Table 3. (continued)
Blewett Falls Development: USGS Station No. 0212880025 1
Date
Time
Explanation
2023-10-31
1:52:00-05:00
Routine service, qw probe swap, readings done side by side off
platform, given 5-10min acclimation time, diver kit missing from truck
- no service on diver/baro, dcp battery 13.2v (12.9v under load),
downloaded dcp data, upgraded firmware from 8R.47 r 3493 to 8.51 r
3517, verified good mmts at s13, antenna on platform keeps falling
over, took unused antenna at gage and replaced platform antenna.
Brushed out sonde deployment tube. Moderate biofouling on outside
of sonde and sonde probes, cleaned. Pics taken as found.
2023-12-06
2:15:00-05:00
Remove DO probe for end of QW season (left in temp), QW cross
section, started internal log on qw sonde that was swapped in, dcp
battery 13.3v (13v under load), updated s13 with new config with
removed DO, downloaded dcp data, no service on diver/baro this visit.
Minor biofouling on outside of sonde and probe faces - cleaned.
24