20080915 Ver 1_Draft Quality Assurance Plan_20080421

Pagb Duke
Energy.
April 18, 2008
08- 0 916
PAT,
Mr. John Dorney
North Carolina Department of Environment
And Natural Resources
Division of Water Quality
2321 Crabtree Blvd
Raleigh, NC 27604
Re: Catawba-Wateree Relicensing Project (FERC No. 2232)
Draft Quality Assurance Project Plan (QAPP)
Dear Mr. Dorney:
As you know, Duke Energy Carolinsa, LLC (Duke) will be submitting a 401 Water
Quality Certification Application in early June of 2008 as part of the relicensing process
associated with our Catawba-Wateree Hydroelectric Project. Per our discussion in late
January, we have developed a draft Quality Assurance Project Plan as required by the
regulations. We would like to request your review of the draft QAPP prior to the
submission of the formal 401 application in hopes that your comments would help us
provide a more complete application.
Please contact me at [phone] if you would like to discuss this further or you may
send comments to me at tsstyer(?
,duke-energy.com. We appreciate your assistance and
look forward to your comments.
Regards,
T ara Styer, Project Man ager
Hydro Licensing and Lake Services
Duke Energy Carolinas, LLC
Attachment - QAPP
xc w/o att: Mark Oakley
Diane Reid - NCDWQ
1617 Mail Service Center
Raleigh, NC 27699-1617
w rm Do
APR ? 1 2008
DENk - `NA I Eii Q0AU It
WETLANDS AND STORYMAIr `R kOANCH
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
CATAWBA-WATEREE TAILWATER DISSOLVED OXYGEN
MONITORING
FERC PROJECT NO. 2232
QUALITY ASSURANCE PROJECT PLAN (QAPP)
DRAFT
Effective Date:
Revision No.
?Energya
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
QUALITY ASSURANCE PROJECT PLAN
CATAWBA-WATEREE PROJECT, FERC No. 2232
Effective Date: TBD
DOCUMENT APPROVAL PAGE
Enter name of Duke Project Manager sianature
Enter his or her title(s) below
Enter name of Duke Quality Assurance Manager signature
Enter his or her title(s) below (independent from data collection organization)
Enter name of another important party
(Hydro Central Manager)
Enter his or her title(s) below
singa
Enter name of another important party siknature
(NCDWQ representative)
Enter his or her title(s) below
Enter name of Field Monitoring Manager si ng a
(Field Monitoring Manager)
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
TABLE OF CONTENTS
GROUP A - PROJECT MANAGEMENT
ALO .......................................................................................................Distribution List
A2.0 ................................................................................................ Project Organization
A3.0 ................................................................................ Project Definition/Background
A4.0 ..........................................................................................Project Task Description
A5.0 ............................................................................... Quality Objectives and Criteria
A6.0 ................................................................................. Special Training/Certification
ATO .......................................................................................... Documents and Records
GROUP B - DATA GENERATION AND ACQUISITION
131.0 .................................................................................Study Design
B2.0 ........................................................................... Sampling Methods
B3.0 .............................................................Sample Handling and Custody
B4.0 ..........................................................................Analytical Methods
B5.0 ............................................................................. Quality Control
B6.0 ........................ Instrument/Equipment Testing, Inspection and Maintenance
B7.0 .....................................Instrument/Equipment Calibration and Frequency
B8.0 ................................. Inspection/Acceptance of Supplies and Consumables
B9.0 .................................................................Non-Direct Measurements
1310.0 .........................................................................Data Management
GROUP C - ASSESSMENT AND OVERSIGHT
C 1.0 .......................................................Assessment and Response Actions
C2.0 ........................................................................ Report Management
GROUP D - DATA VALIDATION AND USABILITY
D1.0 ..............................................Data Review Verification and Validation
D2.0 ...................................................Verification and Validation Methods
D3.0 .................................................Reconciliation with User Requirements
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
REFERENCES
APPENDIX A - Standard Operating Procedures for In-Situ Compliance Monitoring
APPENDIX B - Supplemental Trout Habitat Monitoring
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
LIST OF TABLES
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
LIST OF FIGURES
Duke Energy Carolinas
GROUP A - PROJECT MANAGEMENT
A1.0 Distribution List
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
This Quality Assurance Project Plan (QAPP) will be distributed to the following agencies
and entities with an interest or role in water quality monitoring conducted by Duke
Energy Carolinas, LLC (Duke or Licensee) for the Catawba-Wateree Hydroelectric
Project (FERC No. 2232).
Table 1: Contacts Receiving Duke Energy Catawba-Wateree QAPP
Dianne Reid North Carolina Division of Water Quality
John Dorney North Carolina Division of Water Quality
Heather Preston South Carolina Department of Health and Environmental Control
Chuck Hightower South Carolina Department of Health and Environmental Control
Rusty Weneri ,, South Carolina Department of Health and Environmental Control
Ben West U.S Environmental Protection Agency
Scott Holland Duke Energy Corporation
Mark Oakley Duke Energy Corporation
George Galleher Duke Energy Corporation
Scott Fletcher Devine Tarbell and Associates
Steve Johnson Devine Tarbell and Associates
Jon Knight Devine Tarbell and Associates
v
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
A2.0 Project Organization
The Duke Energy Carolinas, LLC (Duke) Hydro Operations Compliance Engineer will
serve as the Project Manager (PM) and is responsible for overseeing all aspects of the
continuous dissolved oxygen (DO) monitoring program in the Catawba-Wateree Project
tailwaters, including oversight of the subcontractor collecting the data in accordance with
the Water Quality Monitoring Plan (WQMP) (Appendix A) for the Project and this
QAPP. The Duke PM is responsible for reporting data to the North Carolina Division of
Water Quality (NCDWQ) and the South Carolina Department of Health and
Environmental Control (SCDHEC) as described in Section A4.
The Duke Hydro Operations Compliance Engineer also acts as the Project Quality
Assurance (QA) Manager and is responsible for maintaining the QAPP and Quality
Assurance/Quality Control (QA/QC) files. The Duke PM/QA Manager does not
supervise or manage the personnel responsible for collecting the data. The Duke PM/QA
Manager is responsible for the final review of documentation for the QA/QC file and that
data collection is consistent with this QAPP.
The Monitoring Field Manager (subcontractor) is responsible for the review of data and
supporting documentation prior to submittal to the Duke PM/QA Manager. The
Monitoring Field Manager is also responsible for directly overseeing the Monitoring
Field Staff (subcontractor) and the day-to-day coordination of field collection and
equipment maintenance in accordance with this QAPP, the Water Quality Monitoring
Plan (WQMP) and all associated Standard Operating Procedures (SOPs). The Monitoring
Field Manager is responsible for reporting any equipment/calibration issues to the Data
Processor and for making decisions related to corrective action related to
equipment/calibration issues encountered by Monitoring Field Staff. The Monitoring
Field Manager also makes recommendations for flagging data that may be affected due to
known equipment/calibration issues.
The Monitoring Field Staff (subcontractor) are responsible for maintaining functioning
instruments, performing calibration procedures as required, collecting and downloading
data, and maintenance of field log books in accordance with this QAPP, the WQMP and
all associated SOPs. Field Staff are responsible for reporting any equipment/calibration
issues to the Monitoring Field Manager.
The Data Processor is responsible for the data that are processed into an annual database
and electronic spreadsheets. The Data Processor is responsible for software support and
maintaining the interface between the instruments and the receiving station, for reviewing
selected portions of the individual data files and for maintaining records of changes or
flagging of data in the database.
The organizational relationship of these functions is presented in Figure 1.
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Duke
Project Manager/Quality
Assurance Manager
(PM/QA Manager)
_]? Monitoring Field Manager
Data Processor (Subcontractor)
Monitoring Field Staff
(Subcontractor)
Figure 1: Program Organization Chart
A3.0 Project Definition/Background
A3.1 Background
Duke Energy Carolinas, LLC (Duke) is applying for a new operating license from the
Federal Energy Regulatory Commission (FERC) for the Catawba-Wateree Hydro Project
(all eleven impoundments and thirteen powerhouses are included in the Catawba-Wateree
License, see Figure 2). Along with development of its license application, Duke has
developed a Comprehensive Relicensing Agreement (CRA) along with stakeholders to
address many Project-related issues.
One of the proposed license articles in the Application for New License stipulates a Flow
and Water Quality Implementation Plan (FWQIP) to enhance the aquatic resources by
improving flow conditions for fish and wildlife and by meeting state dissolved oxygen
standards. Even though Duke has previously modified many of the turbines to increase
the capacity to aerate the downstream releases, additional plant modifications are
necessary to enhance the aeration capacity and/or meet the minimum flow requirements
stipulated in the CRA. The FWQIP describes the additional physical modifications, the
schedule for completion of the modifications, and any interim measures prior to the
physical installation of the equipment. This document is available in Appendix ? of the
401 Water Quality Certification Application.
An additional proposed article for the new license is the Water Quality Monitoring Plan
(WQMP). This proposed article describes a monitoring program at each hydroelectric
station. The WQMP discusses two major activities for water quality monitoring. The
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
first activity is the measurement and reporting of dissolved oxygen concentrations (DO)
for the duration of the license (this activity is the focus of this QAPP). The second
activity is the measurement of temperature and flow downstream of the Bridgewater
project to verify the computer modeling used to establish the flow release patterns into
the bypassed reach and the downstream river channel (discussed in Appendix B).
The purpose of this QAPP is to provide a quality assurance/quality control program for
the proposed DO monitoring described in the WQMP. This QAPP documents the data
collection procedures and database management activities to ensure that valid data are
used by Duke, NCDWQ, and SCDHEC to evaluate compliance to state dissolved oxygen
(DO) standards. This QAPP was developed in accordance with the USEPA guidance
document "Guidance for Quality Assurance Project Plans, EPA QA/G-5" dated
December 2002.
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Figure 2: Catawba-Wateree Project Location Map
LENOIR '
LAKE JAMES
SHOALS LAKE
LAKE RHODHISS
LINCOLNTON
MTN. ISLAND LAKE
WE NORMAN
MOORESVILLE
NORTH CAROUNA GASTONIA
SOUTH CAROLINA CHARLOTTE
LAKE WY LIE
FORT MILL
I
ROCK HILL
i
(CHESTER
.?_ NORTH CAROLINA
SOUTH CAROLINA
CREEK LAKE
ULS LAKE
:REEK LAKE
LAKE WATEREE
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
3.2 Problem Statement
The goal of the Catawba-Wateree QAPP/WQMP is to provide quality, real-time
dissolved oxygen (DO) and temperature data for the project releases. This real-time data
will be used by operators to adjust hydro operations to maintain compliance with state
DO standards and the requirements of the FERC license. In addition, this data will be
used for reporting compliance, and/or non-compliance events to appropriate agencies, as
well as conducting on-going evaluations regarding equipment performance and
operational guidelines.
A4.0 Project Task Description
Duke's Monitoring Field Staff will collect DO and water temperature data in accordance
with the WQMP. Table 2 summarizes the tasks anticipated to occur under the WQMP
and this QAPP. The QAPP will become effective upon final 401 Water Quality
Certification by NCDWQ and SCDHEC.
The following is a general schedule for the monitoring activities discussed here:
Table 2. Water Quality Monitoring Schedule
Task Timeframe Notes
Water 12 months after FERC At several locations, the installation of water
Quality approves the FWQIP quality monitors will precede the installation
Monitor (subject to approval in NC of the equipment modifications necessary to
installation and SC 401 Water Quality achieve compliance. In these cases, the
Certification) per CRA, monitors will assist Duke in the
Appendix M implementation of interim measures per the
FWQIP. However, these monitor results are
not suitable for compliance assessments until
the necessary equipment modifications have
been implemented (refer to CRA Section
13.2)
DO April 1 -November 30 Each year for the term of the license, per
Monitoring WQMP/FWQIP
Temperature April 1- November 30 Each year for the term of the license, per
Monitoring WQMP/FWQIP
Annual June 30 The annual report will reflect previous year's
Report data; annual reports submitted for the term of
Submitted the license
A5.0 Quality Objectives and Criteria
M
The objectives of data measurement, collection, and retention are to provide real-time,
continuous information to hydro operators to ensure compliance with applicable State
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Water Quality Standards and FERC license requirements and to provide historical
information to operators for continuous improvement of procedures and operations. The
following considerations are necessary that the DO sensor be:
a. representative of water quality conditions during all Project operations;
b. secure (minimize probability of vandalism);
c. accessible for maintenance at all flows; and;
d. at a distance downstream to achieve a small time-lag between changes
in Project operations and monitor response
e. maintained to enable a performance within the manufacture's stated
accuracy
Calibrated and well maintained water quality sensors usually provide more accurate
readings than those given by the manufacturer. Routine maintenance and calibration of
oxygen sensors is critical since the DO probes are prone to fouling (biological and
chemical), which typically results in readings of lower DO concentrations than actually
exist. The maintenance and calibration procedures (see Section B7.0) are designed to
keep the measurements well within the limits specified by the manufacturer.
A6.0 Special Training/Certification
All personnel responsible for field monitoring must be familiar with this QAPP and the
attached Standard Operating Procedures (SOP).
The Monitoring Field Manager will review, and, if necessary, train the Monitoring Field
Staff prior to each monitoring season. The training will consist of
• Current field procedures and SOP's
• Changes, if any, from previous years
• Continuous improvement items identified from past data analysis
The Monitoring Field Manager will observe the field techniques of the Field Staff at
periodic intervals throughout the monitoring season. Any issues with technique will be
corrected at that time and documented in the appropriate field log book.
All personnel responsible for field monitoring must complete safety training as required
by regulating agencies and Duke. Completion of this training will be required on an
annual basis will be documented. All training records will be maintained by the Duke
PM/QA Manager.
A7.0 Documents and Records
All personnel with a role in implementing the WQMP will receive the most recently
approved QAPP and associated documents. These documents will be updated as
necessary by the Duke PM/QA Manager and distributed to all parties listed in Section
Al. Any revisions to the QAPP will be noted on the title page with the revision number
and effective date. Only the Duke PM/QA Manager will have access to making revisions
to the electronic copy of the QAPP, Duke's PM/QA manager is also responsible for
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
obtaining appropriate revision approvals by NCDWQ and SCDHEC and retention of all
revisions to the QAPP.
Revisions to the QAPP may include but not limited to:
• Procedural changes due to continuous improvement activities identified
throughout the course of monitoring
• Procedural changes due to technological changes and/or improvements
• FERC License revisions or requirements
• Water quality agency revisions or requirements
As specified in the SOP's, during the monitoring season, the Monitoring Field Staff will:
• maintain records of calibration
• maintain records of maintenance,
• maintain records of instrument failure
• maintain records of corrective action
• any other field notes/information in field log books
The field staff will transfer these records electronically to the Monitoring Field Manager
on a periodic basis as specified in the SOP'S.
The Monitoring Field Manager will summarize all field staff records and monitoring data
on a periodic basis throughout the monitoring season. These electronic summaries will be
reviewed by the Field Manager and transferred to the Duke PM/QA Manager periodically
throughout the monitoring season. All original raw data records (paper and electronic)
collected by the field staff during the monitoring season will be transferred to the Duke
PM/QA Manager at the end of the monitoring season. The Duke PM/QA Manager will
maintain copies of these records in the QA/QC files for this monitoring project for the
term of the Catawba-Wateree Project FERC License.
The Monitoring Field Manager will maintain scans of all forms and all data files in
electronic format for five years. Access to these files is controlled by the Monitoring
Field Manager.
All non-compliance communications and annual compliance reports submitted to
NCDWQ and SCDHEC (see Section A4) will also be maintained in hard copy and
electronic format by the Duke PM/QA Manager for the term of the new License.
Details of electronic data management are further described in Section B 10 of this QAPP.
GROUP B - DATA GENERATION AND ACQUISITION
B1.0 Study Design
The purpose of monitoring temperature and dissolved oxygen in the water released from
the hydro is to ensure that the DO concentration in that water meets or exceeds applicable
state WQ standards. The study design was based upon the work by Wagner et al. (2000)
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
and modified to meet specific monitoring objectives described in the License
Application. The basic components of the monitoring system are (1) sensors that
measure the temperature and dissolved oxygen, (2) a means of getting the sensor data to
an appropriate database, and (3) a database capable of meeting the operational and
reporting requirements.
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Figure 3: System Overview - this configuration will be provided at each hydro facility
Located in the Tailrace
Lightening Rod
Note:
Dashed Lines Indicate
for Calibration only,
one system used
at all sites
1211
Power
S Pb
i
-? I
Field
Data Log"
I
Underwater Cable -
I
Calibration
Water Quality
Monitor
SCADA
Wave
Radio
Located at the Hydro
Quality Assurance Project Plan
Located in Charlotte
(Hydro Central)
s
station Pi
Wave A -? Operation Database
Radio Computer
Underwater Cable
Programs for:
e Operational Decisions
• Compliance Reporting
Perforated Standpipe
Tailrace Water Quality
Monitor
I
I
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Component Description
Tailwater Water Quality Monitor
The DO sensor utilizes the most current, practical technology to measure
dissolved oxygen. Currently, a luminescence quenching sensor (LDO) to measure
dissolved oxygen is planned for tailrace monitoring. This type of sensor is the
latest technology which drastically reduces the frequency of maintenance and
calibration of the DO electrode (contrasted to the traditional Clark Cell). The
monitor also has a temperature sensor. The sensor has a Modbus communication
protocol for direct connection to the SCADA wave radio (no additional
programming is necessary).
Perforated Standpipe
This 6-inch diameter, PVC pipe is attached to a structure (concrete wall, bridge
piling, etc.) to provide a permanent housing for the sensor. This pipe, perforated
on the lower end allows for free exchange of water and protects the sensor and
cables from physical damage, vandalism, and lightening.
Tailwater Sensor Cables
Standard, off-the-shelf, cables are supplied by the sensor vendor. These cables
allow power to be supplied to the instrument as well as data transmittal to the
SCADA wave radio. Each cable end has a specified fitting for the designated
mated end. These cables were chosen (in lieu of custom fabrication of wiring
components) to allow rapid troubleshooting and replacement (if necessary).
Power Supply, 12 v
Supplies power to SCADA wave radio and sensors
SCADA Wave Radio
This is the standard Duke radio link to send and receive data. The SCADA radio
transfers data from remote sensors to the Fix32 system computer. Line of sight
clearance is required between radio links.
Station Computer
The tailrace water quality monitoring data is received by the current operating
program at all Catawba Hydros, the system receives sensor input (all plant
sensors) and displays the readings. The tailrace water quality monitoring data is
integrated into plant operations and is part of the display that the operators are
accustomed. In addition, the station computer serves as a backup database.
PI Database
This is the database currently used by Duke for storing all generation data from all
facilities. PI has the ability to record and store data at specified intervals.
Standard software extracts data from PI to be used in display formats for
operators and/or reporting.
The first criteria for the placement of the water quality monitors follows the requirements
of the Catawba-Wateree Comprehensive Relicensing Agreement. A schematic of the
Catawba River (Figure 4) illustrates the various developments, water release points, and
required monitoring locations.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Figure 4: Schematic Drawing of the Catawba River
Catawba River
•-- u
of Lake James
e
dba Paddy Ck Paddy Ck E
? I
Paddy creek
------------------±-------------:
Catawba River Bypassed Reach
J Muddy /
Creek
Notes:
1. Overflow spillway
2. Gated spillway
COMPLIA NCE MONITORING LEGEND
USGS gage (flow)
Duke gage (flow)
Reservoir Level
Water Quality (Temp & DO)
USGS type Staff gage Plate
LEGEND

? Powerhouse release
- - Recreation release
--+ Continuous release
-? Regulated reach or
River tributary inflow
- - - -00. Bypassed reach
Lake Resrevoir
Dam Structure

Arm of
Linville River
River
Catawba River
Dam' I Powerhouse
Lake Hickory
Oxford Oxford
Powerhouse Dame
Catawba River
Lookout Shoals Lake
Lookout Lookout
Shoals Dam' Shoals PH
Lake Norman
Cowans Cowans
Ford PH Ford Dame
Mountain Island Lake
Mountain Mountain
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
South Fork
Catawba
River
Notes:
1. Overflow spillway
2. Gated spillway
3. With flash boards
Fishing
Creek
(Continued )
is
Mountain Island Lake
Mountain Mountain
Island PH Island Dam'
Aft
Lake Wylie
Wylie Wylie
Dam2 Powerhouse
Catawba River
Fishing Creek Lake
Fishing Fishing
Great Falls Reservoir .E N

Great Falls Great Falls Dearborn Great Falls N
A
Great Falls
Powerhouse Dam Powerhouse Headwork'.3 Diversion' 3
I
Rocky Short
Creek Bypass
.' Long
Bypass
V t
Cedar Creek Reservoir
Rocky Rocky Crk Cedar
ou n__1,2 rll__i. nu
4 0 f
Lake Wateree
Wateree Wateree
Powerhouse Dam'
Wateree River
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
The figures below show the proposed locations and discuss the rationale of the
monitoring equipment location at each of the Catawba-Wateree Developments. The
specific locations are based upon the criteria identified in Section A5.0 and downstream
field testing.
Figure 5: Bridgewater Water Quality Monitoring Location
Approximate
Map Data Recommended Distance Comments Data Collection
Location Location Downstream
(miles)
Wireless
Bypassed Telemetry to
Reach Minimum Catawba Dam 0
00 Flow sensor at Station
Continuous . flow release valve Computer and
Flows Staff Gage for
Visual
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map
Location Data Recommended
Location Distance
Downstream Comments Data Collection
(miles)
Minimum
Continuous
Flows Downstream of USGS Gage and

2
Recreational 1 St Bridge
0
65 USGS Gage Turbine

Flows Powerhouse . (New Gage) Generation

Project Hourly Road Records
Flows
1 St Bridge
Powerhouse In Situ - Pipe and

Temperature
Road
Instruments on Wireless

3
Dissolved
Linville River
0.25
Bridge Telemetry to

Oxygen
Downstream
(NCDOT approval Station

Bridgewater
required) Computer
Hydro

4

Reservoir Levels
Bridgewater

n/a Current Device on

the Intake
Wired to Station
Forebay
Structure Computer
Device Location Rationale
The valve at the Catawba Dam will be designed to supply seasonal minimum continuous
flows in the Catawba River Bypassed Reach (Location 1). A sensor in the flow pipe or
valve, calibrated for flow, will provide a continuous reading of the flow being released
into the Catawba River Bypassed Reach. Since the sensor is located directly on the valve
or flow pipe, which is on the dam, the sensor should be secure from vandals.
The channel configuration at the proposed site for the new USGS gage is ideally suited
for the expected range of flows originating from the Linville Dam. The site is located on
private property providing a measure of security.
The previous water quality monitoring site was located on the downstream side of the
powerhouse. Even though that site adequately represented the turbine flow water quality,
the future configuration of the Bridgewater Powerhouse is not known, and, therefore, the
recommendation for the future water quality monitoring location is at the first
downstream bridge (on Powerhouse Road). The bridge provides an existing structure to
place the water quality monitor in the center of the narrow river channel. The temporary
monitors placed at this site during the Bridgewater downstream investigations (Knight
2003) illustrated similar water quality values to the tailrace monitor at all flows except
the 50 cfs leakage flows that will be replaced by 75, 95 or 145 cfs minimum continuous
flows in the future depending on the month. This site will represent the water quality
conditions of any combination of hydro unit flow (including minimum flow). In
addition, the site would be accessible under all Project flows, and would provide a rapid
response at the station to water quality conditions. Security from vandals is a concern at
this site.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan

Map
Location
Data
Recommended
Location Approximate
Distance
Downstream
(miles)
Comments
Data Collection
In Situ - Pipe in
Temperature Rhodhiss Road Center of Channel Wireless
1 Dissolved Bridge 0
35 and Instruments Telemetry to
Oxygen Downstream . Mounted on Station
Rhodhiss Hydro Bridge (NCDOT Computer
approval required)

2
Reservoir Levels
Rhodhiss
n/a Current Device on
the Intake
Wired to Station
Forebay
oreb y Structure Computer
Device Location Rationale
The previous water quality monitoring site was located on the south corner on the
downstream side of the powerhouse. That site adequately represented the water quality
of the turbine flow when all the units were identical, however, the turbine venting tests
(Duke Power 2005a), indicated that this location was not representative of the combined
flows from units with differing aeration capability. Therefore, the monitor should be
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
moved to the center of the river channel at the downstream bridge (Location 1). The
bridge not only provides an existing structure to place the water quality monitor in the
center of the channel, but this site represents the water quality conditions of any
combination of hydro unit flows (Duke Power, 2005a). This site is accessible under all
Project flows, and may provide a rapid response at the station to water quality conditions.
Security from vandals may be a slight concern at this site.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Location

F"a

ta# .
Proposed Flow
Valve Monitor
o
Reservoir Level
Monitor
c-4AAA'"'
V
Proposed j
WO Monitor USGS type
Staff gage
1
? xF
s t a . !.'
x
WA 4
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map Data Recommended Distance Comments Data Collection
Location Location Downstream
(miles)
In Situ - Pipe

Highway 16 South Channel
Wireless
Temperature
Bridge and Instruments
Telemetry to
1 Dissolved
Downstream 0.15 Mounted on
Station
Oxygen Oxford Hydro Bridge Computer
(NCDOT approval
required)
Minimum Wireless
2 Continuous Oxford Dam 0
00 Flow sensor at Telemetry to
Flows . flow release valve Station
Computer
Recreational Staff Gage for

3 Flows Riverbend Park
0.30 USGS-Type Plate Visual and
Turbine
Project Hourly Turbine Records Gage Generation
Flows Records
Current Device on Wired to Station
4 Reservoir Levels Oxford Forebay n/a the Intake

Structure Computer
Device Location Rationale
An aerating flow valve will be designed to supply and measure a constant minimum
continuous flow in the downstream channel (Location 2). A sensor in the discharge pipe
or valve, calibrated for flow, will provide a continuous reading of the flow being released
into the river channel. Since the sensor is located directly on the valve or flow pipe,
which is on the dam, the sensor should be secure from vandals. The flow valve will
provide the minimum continuous flow during periods of no hydro unit generation.
Generation and recreational flow requirements will be recorded from the generation
records for each turbine. A manually read, USGS type plate staff gage will be placed at
the boat put-in at Riverbend Park (Location 3) for independent verification.
The previous water quality monitoring site was located in the corner of the powerhouse
and wingwall. That site adequately represented the water quality of the turbine flow
when all the units were identical and prior to the recent installation of the tailrace
buttresses. However, this site would probably not be representative of the combined
flows from hydro units with differing aeration capability and the buttresses would
effectively prevent Unit 2 water from reaching the sensor when Unit 1 was generating.
Therefore, the monitor should be moved to the Highway 16 Bridge immediately
downstream of the turbines (Location 1). The bridge not only provides an existing
structure to place the water quality monitor in the channel, but this site will represent the
water quality conditions of any combination of hydro unit flows. This site will be
accessible under all Project flows, and will provide a rapid response of the station to
water quality conditions. Security from vandals may be a concern at this site.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map Data Recommended Distance Comments Data Collection
Location Location Downstream
(miles)
Temperature East W
l - In Situ - Pipe,
Wired to Station
1 Dissolved Tailrace race 0.01 Monitor Location Computer
Oxygen Unchanged
Minimum
Continuous Turbine
2 Flows Turbine Records n/a n/a Generation
Project Hourly Records
Flows
Current Device on Wired to Station
3 Reservoir Levels Lookout Forebay n/a the Intake Computer
Structure
Device Location Rationale
The minimum continuous flow will be provided by either one of the small auxiliary
hydro units (Location 2) during periods when the larger hydro units are not operating.
The configuration of the Lookout Shoals tailrace (large pool upstream of first
downstream hydraulic control) exhibits very little stage change with or without the
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
auxiliary hydro unit generation. In addition, the elevation of the tailrace is also a function
of Lake Norman's reservoir level (at full pond, the reservoir level extends upstream of
the hydraulic control). Therefore, the minimum continuous flow and hourly flow rates
would be best monitored by the individual generation records of each hydro unit at
Lookout Shoals Hydro.
The previous water quality monitoring site was located on the east wingwall downstream
of Unit 1. That site adequately represented the water quality of the turbine flow when all
the hydro units were identical. The nearest downstream structure to place a monitor in
the center of the channel is the I-40 Bridge which is 1.3 miles downstream. The I-40
Bridge site is strongly influenced by Lake Norman's reservoir level, and the long travel
time of the minimum flow would influence the water quality at minimum flow.
Therefore, the I-40 Bridge location is not preferred for water quality monitoring. Since
no other downstream structure exists to place a monitor in the center of the river, the
wingwall site (Location 1) represents the best logistical option available for water quality
monitoring. This wingwall site will be accessible under all Project flows, and will
provide a rapid response of the station to water quality conditions. The monitor will be
secure since it is located inside the security fence.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan

Map
Location
Data
Recommended
Location Approximate
Distance
Downstream
(miles)
Comments
Data Collection
In Situ - Pipe West

Temperature Railroad Bridge Channeland
Instruments Wireless
1 Dissolved Downstream 0
50 Mounted on Telemetry to
Oxygen Cowans Ford . Bridge
n Station
Hydro (Railroad
approval Computer
required)

2
Reservoir Levels Cowans Ford
n/a Current Device on Wired to Station
Forebay Intake Structure Computer
Device Location Rationale
Even though the previous monitor was placed on the tail-deck of the hydro, this location
probably represented the water quality of the released flow. However, under multi-unit
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
operation, the monitor would only record data from the hydro unit flows adjacent to the
monitor. In addition, security at the Cowans Ford Hydro facility is controlled by the
McGuire Nuclear site (Nuclear Regulatory Commission guidelines) and is difficult to
enter when operators are not present. This security issue limits maintenance accessibility.
Therefore, the recommended site for the future temperature and dissolved oxygen
monitoring is at the railroad bridge 0.5 miles downstream (Location 1). This site would
enable the monitor to measure water quality from the high-volume hydro unit flow as
well as provide a somewhat secure and accessible site. Location of the monitor just west
of the downstream tip of the island would insure that the monitor would be out of the
influence of the wastewater discharge from McGuire Nuclear Station.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map Data Recommended Distance Comments Data Collection
Location Location Downstream
(miles)
Temperature
Tail Deck - In Situ - Pipe,
Wired to Station
1 Dissolved Tailrace 0.00 Monitor Location Computer
Oxygen Unchanged

2
Reservoir Levels Mt. Island
n?a Current Device on Wired to Station
Forebay Intake Structure Computer
Device Location Rationale
Even though the present monitor is on the tail-deck of the hydro (Location 1), this
location probably represents the water quality of the released flow. However, under
multi-unit operation, the monitor would only record data from the hydro unit flows
adjacent to the monitor. Since no other structure, (e.g., bridge), exists in the center of
Mountain Island's tailrace, this tail-deck location represents the best logistical location
available. It is secure and provides ready access for maintenance.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan

Map
Location
Data
Recommended
Location Approximate
Distance
Downstream
(miles)
Comments
Data Collection
Flow-Through
Temperature 12 mile System Auto Wireless
1 Dissolved Downstream 0
50 Calibration Sensor Telemetry to
Oxygen from Hydro (pier . (Island property
' Station
on Ferrell Island) owner
s approval Computer
required)
Small Unit USGS Gage USGS Gage and
Minimum Turbine Records 0
00 (Catawba River Turbine
2 Continuous Highway 21 .
3.60 near Rock Hill, Generation
Flows USGS Gage ) Records
(02146
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan

Map
Location
Data
Recommended
Location Approximate
Distance
Downstream
(miles)
Comments
Data Collection
Recreational USGS Gage USGS Gage and

Flows Turbine Records 0
00 (Catawba River Turbine
3
Project Hourly
Y Highway 21 .
3.60 near Rock Hill,
Generation

Flows
USGS Gage
SC
)
Records
(02146000)
Current Device on Wired to Station
4 Reservoir Levels Wylie Forebay n/a the Intake Computer
Structure
Device Location Rationale
The USGS gage at the Highway 21 Bridge (Location 2/3) is well established and will be
used for verification of minimum continuous flow, recreational flows, and hourly Project
flows. In addition, generation records will be used to supplement the USGS data.
The previous water quality monitoring site was located in the corner of the powerhouse
and wingwall. Extensive monitoring of dissolved oxygen concentrations in the Wylie
tailrace was conducted during the 2002 turbine venting test (Duke 2005a). These results
indicated that the proposed monitoring location was the closest point to the hydro that
best represented the water quality of the multi-unit flows (Location 1). This test
included detailed water quality sampling along several downstream transects, as opposed
to just at the monitoring site. Furthermore, the Wylie tailrace is very complicated since
the island immediately downstream of the powerhouse splits the water released from the
hydro. The flow, from either a single unit or multiple unit operation, moves around the
island and finally merges just upstream of the small island across the channel from the
proposed monitoring location. Use of this location is contingent on being able to get
permission for access from the property owner and on obtaining any necessary
easements. Security from vandals is of some concern at this site.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan

Map
Location
Data
Recommended
Location Approximate
Distance
Downstream
(miles)
Comments
Data
Collection
In Situ - Pipe
Highway 97/200 West Channel Wireless
Temperature Bridge and Instruments Telemetry
1 Dissolved
Downstream Fishing 0.15 mounted on
to Station
Oxygen Creek Hydro Bridge Computer
(SCDOT approval
required)
Reservoir Fishing Creek Existing Device Wired
2 Levels Forebay N/A on the Intake to Station
Structure Computer
Device Location Rationale
The previous water quality monitoring site was located on the wingwall, west of the
Fishing Creek Powerhouse. That site adequately represented the water quality
(temperature and dissolved oxygen) of the turbine flow when all the hydro units were
identical and prior to the recent installation of the tailrace buttresses. However, this site
would probably not be representative of the combined flows from hydro units with
differing aeration capability since the flows will be directed downstream due to the newly
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
installed buttresses. Therefore, the monitor will be moved to the Highway 97/200 Bridge
immediately downstream of the turbines (Location 1). The bridge not only provides an
existing structure to place the water quality monitor in the channel, but this site will
represent the water quality conditions of any combination of hydro unit flows. This site is
accessible under all Project flows, and will provide a rapid response of the station to
water quality conditions. Security from vandals may be a concern at this site.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
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Figure 13: Great Falls / Dearborn
Diversion Dam
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Headworks
Main Dam
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map
Data Recommended Distance
Comments Data
Location Location Downstream Collection
(miles)
Pressure Sensor
Bypassed calibrated to Wireless

Reaches Diversion Dam correspond to
Telemetry
Minimum Long Bypassed 0.25 mi. from minimum continuous to Station
1 Continuous Reach
Downstream Fishing Creek pond level. Pressure
l. Computer
Flows

Recreational
Fishing Creek Dam
Sensor calibrated to and

Staff Gage
Flows Hydro correspond to for visual
recreational flows and
pond level.
Gate Position Sensor
calibrated to gate
Bypassed Headworks opening Wireless
Reaches Short Bypassed corresponding to Telemetry
Minimum Reach 1.95 mi. from minimum continuous to Station
2 Continuous
Downstream Fishing Creek flow. Computer
Flows
Fishing Creek Dam Pressure Sensor and
Recreational
Hydro calibrated to Staff Gage
Flows correspond to for visual
recreational flows and
pond level.
Temperature Duke Bridge 0.1 mi. from In Situ - Pipe, Wired to
3 Dissolved Downstream of Great Falls - Monitor Location Station
Oxygen Hydros Dearborn Dam Unchanged Computer
Reservoir Great Falls Existing Device Wired
4 Levels Forebay N/A on the Intake to Station
Structure Computer
Device Location Rationale
Ideally, measurement of the minimum continuous flows and recreational flows in the
Great Falls Long and Short Bypassed Reaches would be taken directly in the respective
channels. However, the irregular channel configuration in both reaches prevents accurate
flow measurements from stage changes. In addition, the difficult access to the bypassed
reaches poses substantial personnel safety limitations to the calibration and maintenance
of the gages. Therefore, the best measurement of the flow in the bypassed reaches is at
the source of the flows (Locations 1 and 2).
Although the exact design of the minimum continuous flow delivery mechanism has not
been completed, the measurement of flow will be a stage-discharge relationship between
the pond level and the flow being delivered. Continuous flow monitoring for the Long
Bypass will be located at the Great Falls Diversion Dam immediately downstream of
Fishing Creek Hydro (Location 1). The continuous flow monitoring for the Short
Bypassed Reach will be provided at the Great Falls Headworks spillway, both upstream
and downstream of the headworks structure (hence a flow measurement system upstream
and downstream of the headworks) (Location 2).
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Recreational flows will be provided as spill over the Great Falls Diversion Dam and the
Great Falls Headworks. Again, the water level over the spillways will be measured and
stage-discharge equations will relate stage to flow. Manually read, new USGS type plate
staff gages will be placed at the Great Falls Diversion Dam and upstream of the Great
Falls Headworks.
The previous water quality monitor mounted on the Duke Energy bridge immediately
downstream of Great Falls and Dearborn Hydros is ideally located since it is in the center
of the channel (Location 3). This position captures the water quality (temperature and
dissolved oxygen) from both hydros and is in a secure location.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map
Location Data Recommended
Location Distance
Downstream Comments Data Collection
(miles)
Temperature Downstream In Situ - Pipe

1
Dissolved
Face of Cedar
0.00 ,
Monitor Location
Wired to Station
Oxygen Creek Unchanged Computer
Powerhouse

2
Reservoir Levels
Cedar Creek
n/a Current Device on
the Intake
Wired to Station
Forebay Structure Computer
Device Location Rationale
The previous water quality monitor is located in the center of the Cedar Creek tailrace. It
was mounted directly on the powerhouse. Since the hydro units at Cedar Creek were
identical, the temperature and dissolved oxygen monitor adequately measured the water
quality released from Cedar Creek Powerhouse (Location 1).
The water quality of the Cedar Creek hydro flow represents the overall tailrace water
quality since:
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Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
• Cedar Creek Powerhouse flow is significantly greater than Rocky Creek
Powerhouse flow and dominates the downstream flow (capacity of Cedar Creek
units is three times the capacity of the Rocky Creek units).
• Rocky Creek Hydro is operated infrequently; it is operated only after Cedar Creek
Reservoir pond level cannot be maintained by Cedar Creek Hydro (three Units at
Cedar Creek).
• Both hydros draw water from the same forebay and the water quality is similar.
Thus, no water quality monitoring device is necessary at the Rocky Creek Hydro. Unlike
Great Falls-Dearborn, there is no structure downstream of Cedar Creek Powerhouse to
mount a water quality monitor in the center of the channel.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan

Map
Location
Data
Recommended
Location Approximate
Distance
Downstream
(miles)
Comments
Data Collection
Temperature Probably Flow-

1
Dissolved West Platform -
0'02 Through System Wired to Station

Oxygen Tailrace Auto Calibration Computer
Sensor
USGS Gage USGS Gage and
Minimum Highway 1/601 (Wateree River Turbine
2 Continuous USGS Gage 7.4 near Camden, Generation
Flows SC)
Records
(02148000)
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Approximate
Map Data Recommended Distance Comments Data Collection
Location Location Downstream
(miles)
Recreational USGS Gage USGS Gage and

Flows Turbine Records (Wateree River
Turbine
3
ject Hourl
Project
Y Highway 1/601 7.4 near Camden,
Generation
Flows USGS Gage SC
) Records
(02148000)
Wateree Current Device on Wired to Station
4 Reservoir Levels Forebay n/a the Intake Computer
Structure
Device Location Rationale
The USGS gage at Highway 1/601 (Location 2/3) is well-established and will be used for
verification of minimum continuous flow, recreational flows, and hourly Project flows.
Generation records will be used to supplement the USGS data.
The Wateree tailrace is a relatively simple channel, with the flows from the various hydro
units moving directly downstream. However, the tailrace does not lend itself to simple
water quality monitoring due to the various aeration capabilities of the individual hydro
units and subsequent multi-unit flow patterns (Duke Power 2005a). Moving the monitor
location downstream to capture a multi-unit flow is not an option because, at flows
greater than provided by 2-3 unit operations, a significant volume of water flows out of
the main channel to the east within a few hundred yards of the powerhouse.
The existing monitor location (Location 1) was built to extend a short distance into the
tailrace with the goal of better measurements than at the face of the powerhouse. The
existing monitor location is the best logistical location available to measure water quality
because no structure exists in the center of the channel, nor is the east side of the channel
a viable option because that area is heavily used by fisherman (creating damage and
security issues) and is prone to flooding and further potential damage or loss.
The next available location at the Highway 1/601 Bridge is not suitable because of its
distance from the Powerhouse and the presence of aquatic plants and shoals between the
Powerhouse and bridge that significantly influence the DO levels.
132.0 Sampling Methods
All dissolved oxygen and temperature data will be collected In Situ using submerged
instruments within standpipes attached to a permanent structure in the tailrace. The
instruments will be powered by an external power source and data transmitted to the
station operational computer. The data are available in real-time for operational
decisions regarding aeration.
The tailrace data will be collected between April 1 and November 30 each year, with an
annual report available June 30 of the following year. This monitoring period was
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
selected based upon the 10-year monitoring presented in the License Application. At no
time were dissolved oxygen concentrations less than 5 mg/l during the period December
through March.
B3.0 Sample Handling and Custody
No samples will be collected, transported, or stored since all dissolved oxygen and water
temperature measurements will be recorded in situ.
B4.0 Analytical Methods
The Winkler determination for dissolved oxygen is the only chemical analytical method
employed for the monitoring. This technique forms the basis of all instrument
calibrations.
B5.0 Quality Control
Quality control measures for Dissolved Oxygen and Temperature measurements will
include proper calibration and regular tracking and servicing of instruments (see Sections
B6 and 137). Quality assurance activities include documentation of field procedures, data
back-up, automatic data logging, training, etc.
B6.0 Instrument/Equipment Testing, Inspection, and Maintenance
The Monitoring Field Manager is responsible for establishing the proper procedures for
testing, inspection, calibration, and maintenance of all water quality instruments. The
procedures will include a thorough evaluation of instrument performance; evaluations
will include sensor response times for large concentration differences and linearity
checks of instrument calibration from less than 10% DO saturation to greater than 100%
saturation.
Quality control charts will be maintained for each instrument (tracked by serial number)
for response times and linearity over the lifetime of the instrument. In addition to
obvious problems, these charts will be used to evaluate the suitability of instrument
deployment, instrument repair, and/or return for manufacturer servicing.
All maintenance and servicing of instruments will be recorded by the field staff in a
maintenance log book and in an established electronic format.
B7.0 Instrument/Equipment Calibration and Frequency
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Calibration of the Dissolved Oxygen Sensor(s) consists of either a primary calibration or
a secondary calibration.
Primary Dissolved Oxygen Calibration
This calibration consists of adjusting an instrument to read at the primary standard
concentration (manufacturer calibration method). This calibration is performed in the
laboratory by adjusting all instruments to a known concentration of oxygen, as
determined by the Winkler method. Each instrument, prior to deployment in a tailrace,
shall be calibrated to the Winkler standard.
Secondary Dissolved Oxygen Calibration
This calibration is reserved for evaluation of whether an instrument that has been
deployed shall remain deployed or taken back to the laboratory for maintenance. One
designated instrument (primary calibration performed that same day) shall be used at all
sites that day to compare its readings side-by-side with the deployed. If the differences
between the two instruments are greater than the manufacturers' tolerances, the deployed
instrument shall be calibrated to the recently calibrated instrument. If the deployed
instrument does not calibrate or the differences are greater than the control chart limits
(see next paragraph), the deployed instrument shall be returned to the laboratory for
maintenance and be replaced with a recently calibrated (primary) instrument.
Quality control charts shall be maintained for all comparisons of instruments. These
charts shall be maintained by individual instruments and by location. This data shall be
used to determine the limits of out of calibration tolerance for instrument field calibration
criteria.
Initially, calibrations and checks on calibration will be conducted weekly. However, over
time the quality control charts will be used to adjust calibration frequency, especially if
the technologically advanced sensors require far less maintenance than conventional
sensors. ? ) o A
B8.0 Inspection/Acceptance of Supplies and Consumables
The Monitoring Field Manager approves all orders for supplies required for instrument
maintenance and calibration. Upon receipt, all supplies will be inspected for damage.
All supplies and equipment ordered will be stored and documented in accordance with
Duke's Chemical Inventory and approved through Duke's chemical approval process.
B9.0 Non-Direct Measurements
Measurement data not obtained directly under the DO Monitoring Plan and this QAPP,
including hydro plant generating data, reservoir elevation data, National Weather Service
weather data, and U.S. Geological Survey (USGS) gage stream flow data, may be used
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
for interpretation of continuous DO monitoring data. Data collected by regulatory and
governmental agencies will be used and considered as valid data since these agencies
have independent QA/QC programs to ensure valid data. Catawba-Wateree Project
generation data will be acquired through Duke Energy's Hydro Fleet Operations.
Data from universities, non-governmental organizations, or industries may be used to
analyze continuous monitoring results depending upon methods, sampling design, and
QA/QC limitations. Citations will be made when such data are used.
1310.0 Data Management
The continuous DO and water temperature data are collected and monitored on a real
time basis. As the sensor detects the concentrations, the data is automatically transmitted
to the PI data system via the station computer. The PI database provides for permanent
records storage while the station computer temporarily stores the data should the transfer
link to the PI system fail. Once in the PI data system, the data, or its derivatives, will be
provided to Duke's real time Hydro Operations Center.
The protocol for data transmission, storage, and retrieval is controlled by the Plant
Information (PI) database management team. Data files are stored for the duration of the
project on the PI data server, which is backed up electronically on a daily basis.
GROUP C - ASSESSMENT AND OVERSIGHT
C1.0 Assessment and Response Actions
The Monitoring Field Manager or a qualified QA/QC Auditor appointed by the
Monitoring Field Manager will perform an annual (after the field monitoring season)
internal self-assessment of the QA program to ensure the QA/QC records are complete
and accountable. The self-assessment results will be documented and provided to the
Duke PM/QA Manager for the project QA/QC files. Any corrective actions, as required,
will be implemented and documented.
The Duke PM/QA Manager provides additional oversight through the review of the
QA/QC records generated for the continuous DO and water temperature monitoring. The
Duke PM/QA Manager will review and verify field data collection, data processing and
data file submittals; submittal of QA records to the QA/QC file; corrections or revisions
to data files and any subsequent documentation in the QA/QC file; and self-assessment
results.
The Monitoring Field Manager will observe the field techniques of the Field Staff at
periodic intervals throughout the monitoring season. Any issues with technique will be
corrected at that time and documented in the appropriate field log book.
C2.0 Reports to Management
Duke Energy Carolinas
Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
The process for reporting significant issues will follow a chain of command structure.
The Monitoring Field Manager will report problems to the Duke PM/QA Manager and
will address the problem.
The Duke PM/QA Manager will receive annual reports, copies of log books, and
calibration forms for review and will ensure that these records are maintained in a
designated QA/QC file.
GROUP D - DATA VALIDATION AND USABILITY
D1.0 Data Review, Verification, and Validation
Throughout the monitoring season, the Monitoring Field Staff or Monitoring Field
Manager will periodically transfer data from the PI system to software designed to
perform provisional data summaries and trend analysis. Calibration and maintenance data
will be incorporated into this program/database.
The Monitoring Field Manager will review this data for completeness and flag suspect
data and/or evaluate anomalies, trends, compliance issues, etc and will provide the
provisional data, along with recommendations, to the Duke PM/QA Manager after it is
processed. Only the Monitoring Field Manager has access to the database to change or
correct data. The Monitoring Filed Manager will provide the Duke PM/QA Manager
with a copy of the final Annual Database at the end of the field monitoring season.
Supporting calibration forms and maintenance records will be transferred to the Duke
PM/QA Manager.
D2.0 Verification and Validation Methods
Throughout the entire monitoring season the database is archived systematically to ensure
no loss of data and to guarantee database integrity. At the end of the field monitoring
season, all forms, original data, and the database will be archived in electronic format on
digital media; and stored in an electronic storage format as well as by the Duke PM/QA
Manager.
D3.0 Reconciliation with User Requirements
The real time data will be available in the Hydro Operating Center which will be
displayed with real-time trending analysis "process book" and PI related calculation
tools. The real time presentation allows for quick identification of instrument and or
operational issues with the data and allows for immediate problem identification and
resolution.
Duke Energy Carolinas Catawba-Wateree Project No. 2232
Quality Assurance Project Plan
Data collected during the Catawba-Wateree Compliance Monitoring program will be
used to adjust hydro operations to comply with the requirements of the 401 Water Quality
Certification and the FERC license and provide water quality data for reporting
compliance, and/or non-compliance events to appropriate agencies, as well as conducting
on-going evaluations regarding equipment performance and operational guidelines.
In the event that anomalies are found in the data, the Duke PM/QA Manager will review
the field notes taken by the Monitoring Field Manager and look for storm events or
unusual watershed conditions and assess their effects on data.
Data collected for each monitoring season will be put in report form and provided to
NCDWQ, SCDHEC, Duke and FERC, as well as archived in the PI system. Any
anomalies and analysis for any peaks or changes in data throughout the year will be
documented in the reports provided by the Field Manager to the Duke PM/QA Manager.
Any sampling design modifications will be considered only after consultation with
NCDWQ/SCDHEC.
REFERENCES
Duke Energy. 2006. Catawba-Wateree Project FERC # 2232 Application for New
License Exhibit E - Water Quantity, Quality, and Aquatic Resources, Study
Reports. Duke Energy. Charlotte, NC.
Wagner, R.J., H.C. Mattraw, G.F. Ritz, and R.A. Smith. 2000. Guidelines and Standard
Procedures for Continuous Water-Quality Monitors: Site Selection, Field
Operation, Calibration, Record Computation, and Reporting. U. S. Geological
Survey, Water-Resources Investigations Report 00=4252. Reston, Virginia.
United States Environmental Protection Agency. 2001. EPA Requirements for Quality
Assurance Project Plans. EPA QA/R-5, EPA/240/B-01/003. USEPA, Office of
Environmental Information, Washington D.C.
APPENDIX A
Standard Operating Procedures
for In Situ Compliance Monitoring
(to be completed upon receiving equipment and manufacturer's operating manuals)
1. Laboratory Evaluation of Water Quality Sensor Performance
(make sure sensor performs as designed)
2. Configuration and Calibration of Water Quality Sensors Prior to Field Deployment
(setup and calibration of instrument before deployed in tailrace)
3. Determination of Dissolved Oxygen Using the Winkler Method.
(used for laboratory calibration of sensors)
4. Routine Maintenance of Water Quality Sensor After Field Deployment
(cleaning, troubleshooting, and storing instrument between field deployments)
5. In-field Instrument Performance Check, Calibration, and Criteria for Instrument
Replacement (verification of instruments calibration while deployed and/or
instrument replacement)
APPENDIX B
Bridgewater Development
Supplemental Trout Habitat Monitoring
The Catawba River Bypassed Reach and Bridgewater minimum continuous flows have
been selected and evaluated to provide flows and water temperatures suitable for
protection and enhancement of mussels in the bypassed reach and the maintenance of
a stocked trout fishery downstream of Bridgewater Hydro. The volume of warmwater
flows provided to the Catawba River Bypassed Reach to maintain mussel habitat are
balanced against the coldwater minimum flow from the Linville Dam to maintain suitable
temperatures for trout downstream of the confluence of the Catawba River Bypassed
Reach and the Linville River. The flows and temperatures provided to each channel to
achieve the desired, but conflicting temperature requirements were analyzed by the CE-
QUAL-W2 reservoir model and the River Modeling System (RMS). The results of these
computer models were evaluated by the Aquatics/Terrestrial and Water Quality
Resource Committees. Bypassed Reach and Linville Dam minimum continuous flows
stated in the CRA are the result of the recommendations from the evaluations by the
resource committees.
Monitoring
Due to the hydraulic complexity and apparent conflicts of resource management
interests (differing trout and mussel temperature preference) in this area, supplemental
monitoring will be used to support future evaluations of whether trout management goals
in the mainstem Catawba River continue to be supported. This supplemental trout
habitat monitoring will commence after the Bridgewater Powerhouse has been replaced
with either a new powerhouse or valve system and compliance operations have begun.
This measurement and evaluation will continue through the next cycle of NCDWQ
Catawba River Basinwide Assessment period, but not beyond Year 2019. Results of this
monitoring are not intended to be used for water quality certification compliance
purposes, but for continued aquatic resource assessments. These monitoring results
may be used to determine if flow reductions need to be made in the Catawba River
Bypassed Reach.
Sensor Locations
The temperature and level logger placement is designed to be able to record
temperatures, flow (level logger with stage-discharge relationship) from the inflows, and
empirically determine the temperatures at the appropriate downstream river reaches. An
additional temperature and level logger will be provided at the Watermill Bridge (RM
271.7) in Glen Alpine, NC which is in the middle of the primary trout habitat.

Level loggers (devices to record river stage from which a stage-discharge relationship
may be developed to calculate flow) and temperature loggers will be placed in the river
and periodically downloaded to obtain the respective data. Stage-discharge curves will
be developed at the level logger sites.
Rer)ortina Requirements
Annual reports will be provided to NCDWQ and NCWRC (30 April) for the duration of the
supplemental trout habitat monitoring detailing the previous calendar year's
temperatures and levels. Flow-weighted temperatures will be calculated for the
downstream sites.
Bridgewater Supplemental Trout Habitat Monitoring