ML13080A366

Enclosure 1, Summer 2010 Compliance Survey for Watts Bar Nuclear Plant Outfall Passive Mixing Zone

ML13080A366
Person / Time
Site:	Watts Bar
Issue date:	03/18/2013
From:	Hopping P, Ruth B Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
References
Download: ML13080A366 (178)

Text

Enclosure I Summer 2010 Compliance Survey for Watts Bar Nuclear Plant Outfall Passive Mixing Zone El-I

TENNESSEE VALLEY AUTHORITY River Operations SUMMER 2010 COMPLIANCE SURVEY FOR WATTS BAR NUCLEAR PLANT OUTFALL 113 PASSIVE MIXING ZONE Prepared by Brandi L. Ruth and Paul N. Hopping Knoxville, Tennessee February 2011

EXECUTIVE

SUMMARY

The National Pollutant Discharge Elimination System (NPDES) Permit No. TN0020168 for Watts Bar Nuclear Plant (WBN) identifies the discharge of water to the Tennessee River from the Supplemental Condenser Cooling Water (SCCW) System as Outfall 113. Furthermore, the permit identifies that when there is no flow released from Watts Bar Dam (WBH), the effluent from Outfall 113 shall be regulated based on a passive mixing zone extending in the river from bank-to-bank and 1,000 feet downstream from the outfall. Compliance with the requirements for the passive mixing zone is to be made by two annual instream temperature surveys---one for winter conditions and one for summer conditions. Summarized in this report are the measurements, analyses, and results for the passive mixing zone survey conducted for 2010 summer conditions. The survey was conducted on August 25, 2010 between 07:00 CDT and 15:00 CDT (eight hours) and included the collection of temperature data at twelve temporary monitoring stations deployed across the downstream edge of the passive mixing zone during a period of no flow in the river. The data were analyzed to compute three compliance parameters:

the 1-hour average temperature at the downstream edge of mixing zone, Td; the 1-hour average temperature rise from upstream to the downstream edge of the mixing zone, AT; and the 1-hour average temperature rate-of-change at the downstream edge of the mixing zone, TROC. The measured parameters were compared to predicted values from the thermal plume model used by TVA to help determine the safe operation of Outfall 113. The results of the comparisons, in terms of maximum values observed during the no flow event, are as follows:

Parameter Model Measured NPDES Limit Maximum Td 80.1 OF 80.0°F 86.9 0 F Maximum AT 2.3 F0 1.5 F° 5.40 F Maximum ITROCI 1.5 F°/hour 0.6 F°/hour 3.6 F°/hr As shown, values predicted by the model were equal or larger to those measured in the survey.

Thus, for the conditions of the survey, the plume model was found to be good for enforcing the operation of Outfall 113 at levels of Td, AT, and TROC without exceeding the NPDES limits.

For Td and AT, these results are consistent with those of all the previous surveys for the passive mixing zone. For TROC, however, previous surveys have revealed that the model is capable of underpredicting measured values for TROC by as much as 0.3 F°/hour (e.g., see McCall and Hopping, 2006). Under these conditions, a factor of safety of 0.3 F°/hour is currently used in the plume model for predicting the maximum value of TROC. In this manner, the safe operation of Outfall 113 for the passive mixing zone is evaluated based on a maximum value of TROC of

+/-3.3 F°/hour rather than +/-3.6 FP/hour. This practice will continue until further notice.

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TABLE OF CONTENTS Pare No.

EX ECU TIV E SUM M A RY ............................................................................................................. i IN TROD U CTION .......................................................................................................................... I IN STREA M SURV EY ............................................................................................................ 2 RESU LTS ....................................................................................................................................... 3 River Conditions ......................................................................................................................... 3 SCCW Conditions ............................................................................................................... 3 Effluent Behavior ........................................................................................................................ 3 CO N CLU SIO N S ............................................................................................................................. 7 REFERE N CES ............................................................................................................................... 8 A PPEN D IX A ............................................................................................................................... 17 A PPEN D IX B ............................................................................................................................. 103 LIST OF FIGURES Figure 1. Watts Bar Nuclear Plant Outfall 113 (SCCW) Mixing Zones ................................... 9 Figure 2. Schematic of HOBO Water Temperature Monitoring Stations ............................... 10 Figure 3. Location of HO BO M onitoring Stations .................................................................. 10 Figure 4. River Conditions ........................................................................................................... 11 Figure 5. SCCW Conditions ................................................................................................... 12 Figure 6. HOBO Water Temperature Measurements During Survey ...................................... 13 Figure 7. Profiles of Instantaneous Compliance Temperature across Downstream End of Passive M ixing Zone .................................................................................................. 15 Figure 8. Measured and Computed Compliance Parameters for Passive Mixing Zone .......... 16 LIST OF TABLES Table 1. Tem perature Criteria for SCCW M ixing Zones .............................................................. 1 Table 2. Sources of Data for Passive M ixing Zone Survey ...................................................... 2 ii

SUMMER 2010 COMPLIANCE SURVEY FOR WATTS BAR NUCLEAR PLANT OUTFALL 113 PASSIVE MIXING ZONE INTRODUCTION Outfall 113 for the Watts Bar Nuclear Plant (WBN) includes the discharge of water to the Tennessee River from the Supplemental Condenser Cooling Water (SCCW) system. Due to the dynamic behavior of the thermal effluent in the river, the National Pollutant Discharge Elimination System (NPDES) Permit No. TN0020168 for the plant specifies two mixing zones for Outfall 113--one for active operation of the river and one for passive operation of the river (TDEC, 2010). The passive mixing zone corresponds to periods when the operation of Watts Bar Dam (WBH) produces no flow in the river (i.e., hydropower and/or spillway releases). The dimensions of the passive mixing zone extend from bank-to-bank and downstream 1,000 feet from the outfall. The active mixing zone applies to all other river flow conditions. The dimensions of the active mixing zone include the right-half of the river (facing downstream) and extend downstream 2,000 feet from the outfall. The passive and the active mixing zones are illustrated in Figure 1.

Table 1 summarizes the NPDES temperature limits for Outfall 113. The limits apply to both the active and passive mixing zones. Compliance for the active mixing zone is monitored by permanent instream water temperature stations situated in the right-half of the river. Due to navigation issues associated with placing permanent stations in the left-half of the river, a thermal plume model is used to determine the safe operation of Outfall 113 for the passive mixing zone. To verify the thermal plume model, the NPDES permit specifies that two instream temperature surveys shall be conducted each year-one for winter conditions and one for summer conditions. The purpose of this report is to present the results for the passive mixing zone temperature survey conducted for summer 2010 conditions. The survey was conducted on August 25, 2010 between 07:00 CDT and 15:00 CDT (eight hours) and included the deployment of temporary temperature stations at twelve locations across the downstream edge of the passive mixing zone. Data from these and other monitoring stations were analyzed to obtain measured values for the compliance parameters listed in Table 1 and to compare these with the corresponding values estimated from the SCCW thermal plume model. Summarized herein are descriptions of the survey method, results, and conclusions.

Table 1. Temperature Criteria for SCCW Mixing Zones Maximum Temperature, Downstream Edge of Mixing Zone, Td Running 1-hr 86.90 F Maximum Temperature Rise, Upstream to Downstream, AT Running 1-hr 5.4 F0 Maximum Temperature Rate-of-Change, TROC Running 1-hr +/-3.6 F0 /hr 1

INSTREAM SURVEY The method of conducting the instream survey is the same as that used for the first such survey, performed for winter conditions on May 6, 2005 (McCall and Hopping, 2005). Table 2 provides a summary of the sources of data for the survey. The WBN Environmental Data Station (EDS) provided measurements from existing permanent monitoring stations, including the upstream (ambient) river temperature, river water surface elevation, SCCW effluent temperature, SCCW effluent flow, and air temperature. WaterView, a hydroplant monitoring system, was used to provide measurements for the discharge from WBH.

The effluent plume for Outfall 113 was monitored by deploying twelve temporary monitoring stations at roughly equal intervals across the downstream edge of the passive mixing zone. The temporary water temperature monitoring stations recorded temperature profiles using HOBO water temperature sensors positioned at depths of 0.5, 3, 5, and 7 feet below the water surface.

Shown in Figure 2 is a schematic of the temporary monitoring stations, which included an assembly containing a tire float, a string of HOBO water temperature sensors, and anchor weights. The water temperature sensors have an accuracy of about +0.4 F0 and resolution of about 0.04 F', which is consistent with other temperature measurements used for TVA hydrothermal compliance. The HOBO devices include an internal data acquisition unit and were programmed to collect measurements once per minute. All the temperature probes used in the survey, including both the HOBOs and the thermistors at the permanent EDS monitoring stations, were calibrated by a quality program with equipment traceable to the National Institute of Standards and Technology (NIST). The calibration procedure is summarized in Appendix A.

The temporary monitoring stations were deployed on August 24, several hours before the beginning of the survey, and were retrieved at the end of the survey. A Global Positioning System (GPS) device was used to position the stations along the downstream edge of the passive mixing zone, as shown in Figure 3.

Table 2. Sources of Data for Passive Mixing Zone Survey Data Source Frequency River discharge from Watts Bar Dam WaterView 15 min River water surface elevation WBN EDS Station 30 (Tailwater at WBH) 15 min River ambient water temperature WBN EDS Station 30 (Tailwater at WBH) 15 min SCCW effluent discharge WBN EDS Station 32 (Outfall 113) 15 min SCCW effluent temperature WBN EDS Station 32 (Outfall 113) 15 min Air temperature WBN EDS Met Tower 15 min Passive mixing zone temperatures Temporary HOBO Monitors 1 min 2

RESULTS River Conditions Figure 4 shows the measured ambient conditions of the river during the survey; including the discharge, water surface elevation, and temperature of the river exiting Watts Bar Dam upstream of the plant. To provide a period of no flow in the river, releases from Watts Bar Dam were suspended between about 07:00 CDT and 15:00 CDT on August 25, a total of eight hours (daytime). When the releases were suspended, the river water surface elevation below WBH slightly dropped, but then slowly increased to 682.5 feet at 11:30 CDT, due to filling from the river downstream. Over the next hour, the elevation slowly decreased, but then between 12:45 CDT and 15:00 CDT, the water surface elevation rapidly decreased and increased for the last two hours of the survey. This was likely due to sloshing in Chickamauga Reservoir from routine hydro peaking at Watts Bar Dam and Chickamauga Dam. The water surface elevation at the end of the survey was 680.8 feet. The ambient river temperature was about 76.5'F at the beginning of the survey and increased to 78.97F by 13:15 CDT, due primarily to solar heating. The above-mentioned sloshing, which moves water in and out of the tailrace area, was probably responsible for the small fluctuations in water temperature observed beginning at about 12:45 CDT. At the end of the survey, the river temperature had decreased to 78. 17F.

SCCW Conditions During the survey, the SCCW system at WBN was thermally loaded and operating in "summer" mode. That is, the system was operating in a manner producing the largest possible heat load to the river. Shown in Figure 5 are the measured conditions of the SCCW system during the survey; including the discharge and temperature of the SCCW effluent. The SCCW discharge fluctuated between approximately 265 cfs and 296 cfs. The average discharge during the survey was about 285 cfs. The SCCW effluent temperature increased throughout the survey from about 80.5'F at the beginning of the survey to about 85.0°F by the end of the survey. This trend coincides with the air temperature, also shown in Figure 5 (i.e., the performance of the Unit I cooling tower is directly related to the air temperature). Relative to the upstream ambient river temperature, the temperature rise of the effluent exiting the SCCW system hovered around 4.07F for the first two hours of the survey, and then slowly increased, reaching 6.97F at the end of the survey.

Effluent Behavior Individual TemperatureStations Shown in Figure 6 are the readings from the HOBO temperature stations at the downstream end of the passive mixing zone. The stations are labeled consecutively from WB 1 to WB 12, with 3

WB I situated near the left shoreline of the river and WB 12 situated near the right shoreline of the river (i.e., facing downstream-see Figure 3). The following behaviors are noted:

• Throughout the survey, there was a steady increase in temperature at all stations and depths.

Even in the absence of the thermal effluent from Outfall 113, this is typical of daytime solar heating of the river (e.g., recall that the ambient river temperature increased by about 2.5°F during the survey). It took about three and a half hours for the warmest part of the effluent plume to spread across to the left-hand-side of the river and to the downstream edge of the passive mixing zone. During the first three hours of the survey, there was a slight increase in temperature of about 0.5°F at most stations at depths of 0.5 feet and 3 feet. However, the 5-foot and 7-foot depths remained fairly constant for the first three hours. In the following five hours, the temperature at all stations increased by as much as 3°F at the 0.5-foot depth, and as much as 2°F at the 7-foot depth. A temperature increase of only about 2'F at the 7-foot depth, which is consistent with the daytime solar heating, suggests that for the prevailing conditions of the river and WBN, most of the thermal effluent from Outfall 113 resides in the surface layer of the water column (i.e., the mid and bottom layers of the river are protected).

" During the period of no flow, the temperature for WB 12 at the 0.5-foot depth was higher than those for most of the stations. This is because prior to and at the beginning of the period of no flow, the effluent plume from Outfall 113 resided in the extreme fight-hand-side of the river where WB12 was located. Between 13:00 CDT and 14:00 CDT there was a decrease in temperature at WB9 through WB12 as the effluent plume shifted towards and filled the left-hand-side of the river. Reservoir sloshing also may be a contributing factor to this behavior.

But at the end of the survey, the temperature at these stations increased as the thermal front created by plume filling in the left-hand-side of the river finally began to build back into the right-hand-side of the river.

" At the end of the survey, the temperatures at the 0.5-foot depth for WB1 through WB7 were approximately 1°F higher than the temperatures for WB8 through WB112. This is because most of the effluent from Outfall 113 resided in the left-hand-side of the river in the surface layer of the water column at temperatures between 81 OF and 82°F. At a depth of 7 feet and below, the maximum temperature is in the neighborhood of 80'F, only about 1.50 F above the ambient river temperature.

DistributionAcross The Mixing Zone At each HOBO station, the instantaneous compliance temperature was determined by averaging the measurements for the sensors at the 3-foot, 5-foot, and 7-foot depths. Plotted in Figure 7 are the resulting temperatures across the downstream end of the passive mixing zone, measured at 4

the top of each hour from 07:00 CDT to 15:00 CDT on August 25. The following behaviors are noted:

" For the first three hours of the survey, between 07:00 CDT and 10:00 CDT, the temperature at all locations remained fairly constant with only small fluctuations between 0.1 F to 0.2°F.

" By 11:00 CDT, the effluent appears to have reached the downstream end of the passive mixing zone, increasing the temperature (along with solar heating) by about 0.6°F at most locations.

" Over the remainder of the survey, temperatures continued to increase. Between 12:00 CDT and 13:00 CDT, there were small temperature changes of about 0.1'F at WB5 through WB 12. However, at WB 1 through WB4, there were larger increases of almost 0.5°F. At this time, the majority of the thermal effluent resided in the left-hand-side of the river.

" From 13:00 CDT to 14:00 CDT, the river temperature increased an additional 0.5°F at all locations. The effluent still remained on the left-hand-side of the river showing warmer temperatures at WB 1 through WB5.

" By the end of the survey, at 15:00 CDT, the thermal effluent began to shift back toward the right-hand-side of the river with an increase in temperature of about 0.5°F at WB6 through WB9.

Compliance Parameters Since heat from the outfall is distributed across the full width of the river, data from all of the HOBO stations were used to compute the NPDES compliance parameters, which is consistent with the dimensions of the passive mixing zone (e.g., as shown in Figure 1). The compliance parameters examined include those given in Table 1-the temperature at the downstream edge of mixing zone, Td; the temperature rise from upstream to the downstream edge of the mixing zone, AT; and the temperature rate-of-change at the downstream edge of the mixing zone, TROC. The fundamental equations used to compute the compliance parameters are provided in Appendix B, based on the criteria specified in the NPDES permit. The temperature at the downstream end of the mixing zone was determined from the HOBO measurements (i.e., average of sensors at depths 3, 5, and 7 feet for all twelve HOBO stations). The temperature rise was computed as the difference between the temperature at the downstream end of the mixing zone and the upstream temperature measured at Station 30. The temperature rate-of-change was determined by the change in the temperature at the downstream end of the mixing zone from one hour to the next.

The data were averaged over a period of one hour using 15-minute readings, as specified in the NPDES permit, and compared with the WBN thermal plume model. The results are presented in 5

Figure 8, along with the results obtained by the thermal plume model. The following comments are provided.

• Temperature at the downstream edge of the passive mixing zone, Td: The maximum 1-hour average Td estimated by the thermal plume model was 80.1°F, whereas the maximum measured value was about 80.0°F. Thus, the model overpredicted the maximum measured Td by 0.1 °F. Compared to the measurements, the increase in river temperature due to the no flow event was predicted to occur much more rapidly by the model. This is because the model assumes impacts due to changes in the river and/or Outfall 113 are fully realized within one hour (i.e., the model time-step); whereas in reality, the actual time for the development of such impacts is much longer, at least for events with little or no river flow.

Both the predictions from the model and measurements from the survey were well below the NPDES limit of 86.9°F.

" Temperature rise, AT: The maximum 1-hour average AT predicted by the plume model was 2.3 FP, whereas the maximum measured value was about 1.5 F0 . Thus, the model overpredicted the maximum measured temperature rise by 0.8 F0 . For the reason cited above (i.e., computational time-step of one hour), the model predicted the temperature rise to occur sooner than that found by the measurements. Both the predictions from the model and measurements from the survey were well below the NPDES limit of 5.4 F0 .

" Temperature rate-of-change, TROC: The maximum 1-hour average TROC predicted by the plume model was 1.5 F0 /hour, whereas the maximum measured value was about 0.6 F0 /hour (absolute values). Thus, the model overpredicted the actual value of the temperature rate-of-change. Both the predictions from the model and measurements from the survey were well below the NPDES limit of +/-3.6 F°/hour.

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CONCLUSIONS The survey for 2010 summer conditions was successful in measuring the NPDES water temperature parameters for the Outfall 113 passive mixing zone. The measurements were compared with values predicted by the thermal plume model that currently is used to judge the safe operation of the SCCW system. Overall, for the conditions of the 2010 summer survey, the model was found to be good in estimating the impact of Outfall 113 on the temperature, Td, temperature rise, AT, and temperature rate-of-change, TROC, at the downstream end of the passive mixing zone. This is because the model overpredicted the maximum value measured for Td, AT, and TROC. Therefore, Outfall 113 can operate at levels of Td, AT, and TROC without exceeding the NPDES limits. For Td and AT, these results are consistent with those for all of the previous surveys for the passive mixing zone. The same is not true, however, for TROC.

Previous surveys have revealed that the model is capable of underpredicting measured values for TROC by as much as 0.3 F0/hour (e.g., see McCall and Hopping, 2006). Under these conditions, and despite the results summarized herein, a factor of safety of 0.3 F0 /hour is used in the plume model for predicting the maximum value of TROC. That is, the safe operation of Outfall 113 for the passive mixing zone will continue to be evaluated based on a maximum value of TROC of

+/-3.3 F0 /hour rather than +/-3.6 F°/hour. In general, this action will have only a very slight impact on the SCCW, since the operation of the SCCW tends to be controlled primarily by the NPDES limit for AT, not the limit for TROC.

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REFERENCES McCall, Michael J., and P.N. Hopping, "Summer 2005 Compliance Survey for Watts Bar Nuclear Plant Outfall 113 Passive Mixing Zone," TVA River Operations, Report No. WR2006-2-85-152, February 2006.

McCall, Michael J., and P.N. Hopping, "Winter 2005 Compliance Survey for Watts Bar Nuclear Plant Outfall 113 Passive Mixing Zone," TVA River Operations, Report No. WR2005-2-85-15 1, October 2005.

TDEC, State of Tennessee NPDES Permit No. TNO020168, Tennessee Department of Environment and Conservation, Issued June 2010.

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Figure 1. Watts Bar Nuclear Plant Outfall 113 (SCCW) Mixing Zones 9

Water Surface -- Marker Eesco

-- Tire Flot Temperature Sensom (see detal below)

Anchor (not on otom) " A n Chaov el So tto i (Not to Scale)

HOEO Temperatur, Sensor Detal Figure 2. Schematic of HOBO Water Temperature Monitoring Stations Figure 3. Location of HOBO Monitoring Stations 10

35 30 U" 25 a

a o 20 0 15 10 5

0 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 684SuvyPro -

683 S682 0

681 680 679 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 80 0 79

• .78 E

77 E

76 a.

75 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 August 25, 2010 (CDT)

Figure 4. River Conditions 11

350 300 ,

250 200 U

2.

0 150 U 100 50 0

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10' 70 65 60 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00

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.= 2 0

03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 August 25, 2010 (CDT)

Figure 5. SCCW Conditions 12

83 82 C81 80 C.

079 78 77 76 83 82

.81

. 80 E

• 79 9 78 77 76 83 C81

• 80 0

. 79 9 78 77 76 07:00 08:00 09000 10:00 1100 12:00 13:00 14:00 15:00 07:00 08:00 09:00 10:00 11.00 1200 13.00 14:00 15:00 August 25,2010 (CDT) August 25, 2010 (CDT)

Figure 6. HOBO Water Temperature Measurements During Survey 13

83 82 E' 81 SL S80 S

ES79 78 77 76 83 82

-*80I E'

S79 78 S

76 83N S81 o

E S79 dpl 773Wdh3 76 1, II 07:00 08.00 0:00 1&.00 11:00 12:00 13:00 14:00 15.00 07:00 08:00 MOO01000 11:00 1200 13:00 14:00 15:00 August 25,2010 (CDT) August 25, 2010 (CDT)

Figure 6 (Continued). HOBO Water Temperature Measurements During Survey 14

82 81 80 0

0 E 79 l--

a=

78 78 77 WB1 WB2 WB3 WB4 WB5 WB6 WB7 WB8 WB9 WB1O WB11 WB12 HOBO Monitoring Station (left bank to right bank, facing downstream)

Figure 7. Profiles of Instantaneous Compliance Temperature across Downstream End of Passive Mixing Zone (Average of Readings at 3-Foot, 5-Foot, and 7-Foot Depths) 15

Downstream Temperature, Td 88 86 02 82 E. 80 78 76 Temperature Rise, AT 6

5

- 5 S 4 E

a3 0

Temperature Rate-of-Change, TROC 4

3 I

• 2 o -2

-3

-4 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 August 25,22010 (CD Figure 8. Measured and Computed Compliance Parameters for Passive Mixing Zone 16

APPENDIX A (The following information is provided per request of Mike Kelly of TDEC on August 26, 2008)

All sensors used by TVA for monitoring compliance of NPDES water temperature requirements are certified and maintained to meet the following industry and regulatory standards:

" ISO/IEC 17025--Quality assurance requirements for the competence to carry out sampling, testing, and calibrations using standard, non-standard, and laboratory-developed methods (ISO=International Organization for Standardization, IEC=International Electrotechnical Commission).

"1 OCFR50 Appendix B-Quality assurance criteria for design, fabrication, construction, and testing of the structures, systems, and components of nuclear power plants (CFR=Code of Federal Regulations).

• 40CFR136--Guidelines establishing test procedures for the analysis of pollutants under the Clean Water Act.

" ANSI N45.2. 1971-Quality assurance requirements for Nuclear Power Plants (ANSI=

American National Standards Institute).

" ANSIINCSL Z540-1-1994--General requirements for calibration laboratories and equipment used for measurements and testing (NCSL=National Conference of Standards Laboratories).

The standard used to certify the thermistors for the permanent EDS stations and the temporary HOBO stations is traceable to the National Institute of Standards and Technology (NIST). The standard includes two pieces of equipment-a platinum resistance temperature detector (RTD) manufactured by Bums Engineering, Inc. and an ohmmeter manufactured by Azonix Inc. The latter is used to measure the resistance of the RTD (i.e., the resistance of platinum varies with temperature). The NTIS traceable calibration certificates for the Burns RTDs and the Azonix ohmmeter that were used to calibrate the HOBO probes are provided below. The end result of the RTD calibration is a set of International Temperature Scale 1990 (ITS 90) coefficients that are used to compute water temperature from the measured RTD resistance. Based on the calibration certificates, the accuracy of the system for the temperature standard is about +/-0.05'F.

The tolerance of the thermistors used for the WBN field survey is about +/-0.4°F, thus providing a calibration test accuracy ratio (TAR) of about 1:8. That is, the accuracy of temperature standard used for the sensor calibrations is 8 times greater than the minimum acceptable field accuracy of temperature sensors. This is twice the recommended maximum TAR of 1:4 for sensor calibrations.

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The TVA procedure to calibrate the HOBO water temperature probes, Instruction No. 450.01-020, is provided below. Briefly, the HOBO probes are immersed in a stirred temperature-controlled water bath along with the standard (i.e., along with the Bums RTD probe). After the bath stabilizes, temperature readings from the HOBO probes are compared to the temperature readings from the standard. Experience has shown that in nearly all cases, the readings from both the HOBO probes and the standard and are essentially constant, so that the 95 percent confidence interval of the readings is diminutive. Under these conditions, the accuracy of each HOBO probe is recorded simply as the difference between the HOBO reading and that of the standard (negative difference = HOBO reading low/below standard, positive difference = HOBO reading high/above standard). The HOBO probes are tested at three temperatures between 30'F and 100lF, covering the range of expected water temperature for natural river conditions.

Specifically, the three temperatures are at about the 10 percent, 50 percent, and 90 percent intervals, or 37'F, 65°F and 93°F, respectively. Any HOBO probe with measured accuracy (i.e.,

difference) in excess of the maximum allowable tolerance of +0.4°F for any one temperature fails the calibration test and is removed from the field survey inventory. In general, based on TVA experience, most HOBO probes that pass the calibration test usually have measured accuracies better than about +/-0.25'F for all three temperatures examined in the bath tests. The calibration certificates for HOBO probes used in field survey summarized herein are provided below. Included are certificates for both the pre- and post-survey calibration tests. A close examination of the certificates shows that all the HOBO probes passed the calibration test both before and after the field survey.

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Calibration Certificates for Burns Platinum Resistance Thermometer (RTD)

RTD ID No. 906535 was used for both pre-survey and post-survey calibrations.

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REPORT of CALIBRATION Asset ID: 906535 Certificate No: 17538 Page 1 of 6 Tennessee Valley Authority Central Laboratories Services MNailing .Aldres,: 1101 Mtarket . SrCiP-B-C(. ('haltanroga. TN 37402

.<hipping Adhirms: 4601 North Arcesi Road. Bhlg. A, (hartinrnoga. FN 3741.

]h'nI  : (423) 876-4318 fax; (423) 876-4137 Customer: QA RECORD CLS KNOXVILLE 400 W. SUMMIT HILL DR.

KNOXVILLE, TN 37902 Instrument Information: Calibration Information:

==

Description:==

RTD Cal Date: 12J1012009 Mlanufactuirer: BURNS Due Date: 12/1012010 NIlode: 3925 Interval: 12 Months Serial Number: Ciat Instruction: 307.04-004 As Found: Out of Tolerance As Left: In Tolerance - Adjusted AS FOUND OUT OF TOLERANCE Ambient Temperature: 721F +/- 91F Ambient Humidity: <-80% RH This is to certify that all instrumentation. testing methods and personnel used comply with the requirements of the Central Laboratonesl 5ervices ICLS) Quality Assurance Program whlich7is designed to meet (he requirements of ISOIIEC 17025. 10CFRSO3Appendix B. ANSI N145 2-1971. and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NISTI, officially recognized agencies. commeroially accepted practices or natural physical constants. This report shalt not be reproduced.

except in full,without the written approval of CIS.

"'Ichnical Remrks:

Standards Utilized TVA I.D. Mfg. Model No. Description Cal. Date Due Date 891602 ASL F17 TEMPERATURE MEASURING SYSTEM 0/8/2009 0812812010 891603 TINSLEY 56ee-A STANDARD RESISTOR.25 Ohms 1210912009 0610912010 905463 GUILDLUNE 9330 STANDARD RESISTOR 1210712009 1210712010 905E43 ISCITECH MERCURY CELL FIXED POINT CELL 12/08/2009 12/0612014 9'05644 HARTSCIENTIFIC WATER TRIPLE CELL TRIPLE POINT BATH & CELL 1210l82009 1210802014 906645 ISOrECH GALLIUM CELL FIXED POINT CELL 1200812009 12!08!2014 906646 ISOTECH TIN CELL qIXED POINT CELL 1210812009 1208f2014 906647 ISOTECH ZINC CELL FIXED POINTCELL .21DE/2009 i2,'0a201'i Coieti r: David R.Bird Approved By: SamBertramr 1211512009 Sr Metroloav Tech Cahbration Suov. Date Thu' report was electronieally approved using Edison Mudcats Metrology Suite Ver. 2.2.1.

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If~SfE 1"- 1-1 A.,.,.,W CENTRAL LABORATORIES SERVICES Cust. I.D. No.: 906535 CHATTANOOGA, TENNESSEE Page No.: 2 of 6 CALIBRATION REPORT Date of Report: 12/10/09 Remarks: Accuracy +/- 0.02 Degrees C.

Recalculated coefficients prior to As Left test to bring within tolerance.

For As Left data and coefficients refer to page 3 of 6.

AS FOUND TEST UUT STD ERROR

°C C C

-38.8536 -38.8344 0.0192 0.01000 0.0100 0.0000 29.7362 29.7646 0.0284 'Failed 231,9149 231.9280 0.0131 419,4449 419.5270 0.0821 'Failed As Found ITS 90 Coefficients Rtpw 100.032105 a5 -4.15854650E-04 b5 -1.55621388E-04 a8 -2.72593907E-04 b8 -2.28004426E-04 Test current ImA 21

Report for ITS-90 Coefficients Model: 3925 Serial: TVA 906535 Date: December 03,2009 TPW:

Reference ({C) UUT (Ohms) Residual (°C) 0.0100 100.0317 N/A Low Range:

Reference (°C) UUT (Ohms) Residual (°C)

-38.8344 84.4397 0.0026 29.7646 111.8350 -0.00(18 High Range:

Reference ((C') UIlT (Ohms) Residual (IC')

231.9280 189.2937 0.000 I 419.5270 256.8467 0.0000 Coefficients:

RTPW = 100.031701 Low Range:

a5 = -6.56647710 E-04 b5 =-4.73559772 E-03 High Range:

aS = - 1.32503333 E-04 b8 = -4.29922201 E-04 Page 3 of 6 906535 22

Model: 3925 Serial: NIVA 906535 ITS-90 Tempera~ture vs. Resistance Table

.C Resistance drIdT Resistance dr/dT oC Resistance dr/dT

-39.00 84.371755 0.4041701 20.00 107.98165 0.3964075 79.00 131.16111 0.3892309

-38.00 84.775925 0.4040197 21.00 108.37805 0.3962850 80.00 131.55034 0.3891100

-37.00 85.179945 0.4038700 22.00 108.77434 0.3961626 81.00 131 .93945 0.388989 1

-36.00 85.583815 0.4037209 23.00 109.17050 0.3960401 82.Ob 132.32844 0.3888683

-35.00 85.987536 0.4035724 24.00 109.56654 0.3959178 83.00 132.7 173 1 0.3887474

-34.00 86.391106 0.4034245 25.00 109.96246 0.3957954 84.00 133.10605 0.3886266

-33.00 86.794533 0.4032772 26.00 110.35826 0.3956731 85.00 133.49468 0.3885058

-32.00 87.197810 0.4031305 27.00 110.75393 0.3955508 86.00 133 .883 19 0.388385 1

-31.00 87.600940 0.4029843 28.00 111.14948 0.3954285 87.00 134.27157 0.3882643

-30.00 88.003925 0.4028387 29.00 111.54491 0.3953063 88.00 134.65984 0.3881436

-29.00 88.406764 0.4026937 30.00 111.94021 0.3951841 89.00 135.04798 0.3880229

-28.00 88.809457 0.4025492 31.00 112.33540 0.3950620 90.00 135.43600 0.3879022

-27.00 89.212006 0.4024052 32.00 112.73046 0.3949399 91.00 135.82391 0.38778 16

-26.00 89.614412 0.4022617 33.00 113.12540 0.3948178 92.00 136 .21169 0.3876609

-25.00 90.01 6673 0.4021187 34.00 113.52022 0.3946957 93.00 136 .59935 0.3875403

-24.00 90.418792 0.4019762 35.00 113.91491 0.3945737 94.00 136.98689 0.3874197

-23.00 90.820768 0.401834 1 36.00 114.30949 0.3944517 95.00 137.37431 0.3872992

-22.00 91.222602 0.40 16925 37.00 114.70394 0.3943297 96.00 137.76161 0.3871786

-21.00 91-624295 0.4015513 38.00 115.09827 0.3942078 97.00 138.14879 0 .387058 1

-20.00 92.025846 0.4014105 39.00 115.49248 0.3940859 98.00 138.53584 0.3869376

-19.00 92.427257 0.4012701 40.00 115.88656 0.3939640 99.00 138.92278 0.3868171

-18.00 92.828527 0.4011301 41.00 116.28053 0.3938422 100.00 139.30960 0.3866966

-17.00 93.229657 0.4009904 42.00 116.67437 0.3937204 101.00 139.69630 0.3865762

-16.00 93.630647 0.4008511 43.00 117.06809 0.3935986 102.00 140.08287 0.3864558

-15.00 94.031498 0.4007121 44.00 117.46169 0.3934768 103.00 140.46933 0.3863354

-14.00 94.432210 0.4005734 45.00 117.85516 0.3933551 104.00 140.85566 0.3862150

-13.00 94.832784 0.4004350 46.00 116.24852 0.3932334 105.00 141.24188 0.3860946

-12.00 95.233219 0.4002969 47.00 118.64175 0.3931117 106.00 14 1.62797 0.3859743

-11.00 95.633516 0.4001589 48.00 119.03486 0.3929900 107.00 142 .01 395 0.3858540

-10.00 96.033675 0.4000212 49.00 119.42785 0.3928684 108.00 142.39980 0.3857337

-9.00 96.433696 0.3998837 50.00 119.82072 0.3927468 109,00 142.78553 0.3856134

-8.00 96.833579 0.3997464 51.00 120.21347 0.3926252 110.00 143.17115 0 .385493 1

-7.00 97.233326 0.3996091 52.00 120.60609 0.3925037 111.00 143 .55664 0,3853729

-6.00 97.632935 0.3994720 53.00 120.99860 0.3923821 112.00 14 3.9420 1 0.3852527

-5.00 98.032407 0.3993350 54.00 121.39098 0.3922606 113.00 144.32727 0.3851325

-4.00 98.431742 0.3991981 55.00 121.78324 0.3921392 114.00 144.71240 0.3850124

-3.00 98.830940 0.39906 12 56.00 122.17538 0.3920177 115.00 145.0974 1 0.3848922

-2.00 99.230001 0.3989242 57.00 122.56740 0.3918963 116.00 14 5.48230 0.384772 1

-1.00 99 628926 0.3987873 58.00 122.95929 0.3917749 117.00 145.86708 0.3846520 0.00 100.02771 0.3988660 59.00 123.35107 0.3916535 118.00 146.25173 0.3845319 1.00 100.42658 0.3987426 60.00 123.74272 0.3915322 119.00 146.63626 0.3844118 2.00 100.82532 0.3986193 61.00 124.13425 0.3914108 120.00 147.02067 0.3842918 3.00 101.22394 0.3984961 62.00 124.52567 0.3912895 121.00 147.40496 0.384 17 18 4.00 101.62244 0.3983729 63.00 124.91696 0.3911682 122.00 147. 78913 0.3840518 5.00 102.02081 0.3982497 64.00 125.30812 0.3910470 123.00 148.17319 0.3839318 6.00 102.41906 0.3981266 65.00 125.69917 0.3909258 124.00 148.55712 0.3838119 7.00 102.81718 0.3980035 66.00 126.09010 0.3908045 125.00 148.94093 0.3836919 8.00 103.21519 0.3978805 67.00 126.48090 0.3906834 126.00 149.32462 0.3835720 9.00 103.61307 0.3977575 68.00 126.87158 0.3905622 127.00 149.70819 0.3834522 10.00 104.01083 0.3976346 69.00 127.26215 0.3904410 128.00 150.09165 0.3833323 11.00 -104.4084.6 0.3975117 70.00 127.65259. 0.3903199 129.00 150.47498 0.3832125 12.00 -104.80597, 0.3973889 P1.00 - 128.04291 0.3901988 130.00 150.85819 0.3830926 13.00 105.20336 '0.3972660 72.00 128.43311 0.3900778 131.00 151 .24128 0.3829728 14.00 105.60063 0.3971433 73.00 128.82318 0.3899567 132.00 151.62426 0. 382853 1 15.00 105.99777 0.3970206 74.00 129.21314 0.3898357 133.00 152.00711 0.3827333 16.00 106.39479 0.3968979 75.00 129.60298 0.3897147 134.00 152. 38984 0.3826 136 17.00 106.79169 0.3967752 76.00 129.99269 0.3895937 135.00 152.77246 0.3824939 18.00 107.18846 0.3966526 77.00 130.38228 0.3894727 136.00 153.15495 0.3823742 19.00 107.58512 0.3965300 78.00 130.77176 0,3893518 137.00 153.53732 0.3822545 23

Model: 3925 Serial: TVA 906535 Mode:325Sria:

Temperature IV 90535ITS-90vs. Resistance Table

.C Resistance drldT oC Resistance drldT .C Resistance drldT 138.00 153.91958 0.3821349 197.00 176 .26 160 0.3751159 256.00 198.19 174 0.368 1726 139.00 154,30171 0.3820 152 198.00 176.63671 0.3749976 257.00 198.55991 0.3680555 140.00 154.68373 0.3818957 199.00 177.01171 0.3748793 258.00 198.92797 0.3679384 141.00 155.06562 0. 38 1776 1 200.00 177.38659 0.3747611 2500b 199.29590 0.36782 13 142.00 155.44740 0.3816565 201.00 177 .76 135 0.3746429 260.00 199.66373 0.3677042 143.00 155.82906 0.3815370 202.00 178.13599 0.3745247 261.00 200.03 143 0.3675871 144.00 156.21059 0.3814175 203.00 178 .5 1052 0.3744065 262.00 200. 39902 0.3674701 145.00 156.59201 0.38 12980 204.00 178 .88493 0.3742884 263.00 200 .76649 0.367353 1 146.00 156.97331 0. 38 11785 205.00 179. 2592 1 0.3741702 264.00 20 1.13384 0.367236 1 147.00 157.35449 0.381059 1 206.00 179.63338 0 .374052 1 265.00 201.50108 0.3671191 148.00 157 73555 0 .3809397 207.00 180.00744 0.3739340 266.00 20 1.86820 0.367002 1 149.00 158.11649 0. 3808203 208.00 180.38137 0. 3738160 267.00 202. 23520 0. 3668851 150.00 15849731 0 .3807009 209.00 180.75519 0,3736979 268.00 202.60208 0.3667681 151.00 158.87801 0.3805815 210.00 18 1.12888 0.3735799 269.00 202 .968 85 0.3666512 152.00 159.25859 0.3804622 211.00 181. 50246 0.37 346 19 270.00 203. 33 550 0 .3665343 153.00 169.63905 0.3803429 212.00 181.87 593 0.3733439 271.00 203 .70 204 0.3664 174 154.00 160.01939 0.3802236 213.00 182.24927 0.3732259 272.00 204 .06845 0.3663005 155.00 160.39962 0.3801044 214.00 182.62250 0.3731080 273.00 204.43475 0.366 1836 156.00 100.77972 0.3799851 215.00 182.99560 0,3729901 274.00 204.80094 0.3660667 157.00 161'.15971 0.3798659 216.00 183.36859 0 .3728722 275.00 205.16700 0.3659498 158.00 161 53957 0.3797467 217.00 183.74 147 0.3727543 276.00 205.53295 0. 3658330 159.00 161.91932 0.3796275 218.00 184.11422 0.3726365 277.00 205.89879 0.3657 161 160.00 162.29895 0.3795084 219.00 184.48686 0.3725186 278.00 206.26450 0.3655993 161.00 162.67846 0.3793893 220.00 184.85938 0.3724008 279.00 206M6010 0.3654825 162.00 163.05785 0 .3792702 221.00 185. 23 178 0.3722830 280.00 206,99559 0.3653657 163.00 163.43712 0.3791511 222.00 185.60406 0.372 1653 281.00 20 7,36095 0 .3652489 164.00 163.81627 0.3790320 223.00 185.97622 0 .3720475 282.00 207,72620 0.365132 1 165.00 164.19530 0.3789130 224.00 186.34827 0.3719298 283.00 208 .09 133 0.3650154 166.00 164.57421 0.3787940 225.00 186.72020 0.37 18121 284.00 208.45635 0.3648986 167.00 164.95301 0.3786750 226.00 187 .0920 1 0.3716944 285.00 208.82125 0.3647819 168.00 165.33168 0.3785560 227.00 187.46371 0.37 15767 286.00 209.1 8603 0.3646651 169.00 165.71024 0.378437 1 228.00 187.83529 0 .37 14 591 287.00 209.55069 0.3645484 170.00 166.08867 0.3783 182 229.00 188.20674 0.37134 15 288.00 209.91524 0.3644317 171.00 166.46699 0.3781993 230.00 188.57809 0.3712238 289.00 210 .27967 0.36431 50 172.00 166.84519 0 .3780804 231.00 188.94931 0.3711063 290.00 210.64399 0,.364 1983 173.00 167.22327 0.3779615 232.00 189.32042 0.3709887 291.00 211.00819 0.36408 16 174.00 167.60123 0.3778427 233.00 189 .69 140 0.3708711 292.00 211.37227 0.3639649 175.00 167.97908 0,3777239 234.00 190.06228 0.3707536 293.00 211.73623 0.3638483 176.00 168.35680 0 .377605 1 235.00 190.43303 0.3706361 294.00 2 12.10008 0.36373 16 177.00 168.73440 0 .3774863 236.00 190.80367 0 .37051 86 295.00 212 .4638 1 0.3636150 178.00 169.11189 0.3773676 237.00 191.17418 0.3704011 296.00 212.82743 0.3634983 179.00 16948926 0.3772489 238.00 191.54459 0 .3702837 297.00 213. 19093 0.3633817 180.00 169.86651 0 .377 1302 239.00 19 1.91487 0.370 1662 298.00 213.55431 0.3632651 181.00 170.24364 0.3770115 240.00 192.28503 0.3700488 299.00 213 .917 57 0.3631484 182.00 170.62065 0.3768929 241.00 192.65508 0.36993 14 300.00 214.28072 0.3630318 183.00 170.99754 0 .3767743 242.00 193.02502 0.3698 141 301.00 214 .64375 0.3629152 184.00 171.37432 0.3766557 243.00 193.39483 0.3696967 302.00 2 15.00667 0.3627986 185.00 171.75097 0.376537 1 244.00 193.76453 0.3695793 303.00 215.36947 0.3626820 186.00 172.12751 0.3764 185 245.00 194.13411 0.3694620 304.00 215.73215 0.3625655 187.00 172.50393 0.3763000 246.00 194 .50357 0.3693447 305.00 216 .0947 1 0.3624489 188.00 172.88023 0.3 7,. 181 5 247.00 194.8729 1 0.3692274 306.00 216.4 5716 0.3623323 189.00 173.25641, 0.3760630 248.00 195.24214 0.3691102 307.00 216,81950 0.3622157 190.00 173 63247, 0.3759445 249.00 195.61125 0.3689929 308.00 2 17.18171 (1.3620992-191.00 174.00842 0 .3758261 250.00 195.98024 0.3688757 309.00 217 .5438 1 0.3619826 192.00 174.38424 0 .3757077 251.00 196.34912 0.3687584 310.00 217 .90579 0.361 8661 193.00 174.75995 0.3755893 252.00 196 .71788 0.3686412 311.00 2 18.26766 0.3617495 194.00 175.13554 0.3754709 253.00 197.08652 0.3685241 312.00 218 .6294 1 0.3616330 195.00 175.51101 0.3753525 254.00 197.45504 0.3684069 313.00 218 .99104 0 .36 15164 196.00 175.8~8636 0 .3752342 255.00 19 7.82345 0.3682897 314.00 2 19.35256 0.3613999 Page 5 of 6 Date: December 03.2009 24

Calibration Certificate for Azonix Ohmmeter Instrument used to read resistance of Bums RTD thermometers.

Azonix Ohmmeter ID No. 906527 was used for both pre-survey and post-survey calibrations.

25

REPORT of CALIBRATION Asset ID: 906527 Certificate No: 18904 Page 1 of 2 Tennessee Valley Authority Central Laboratories Services

%6ailing Address: 1101 Market Street. PSC-tI 8-C. Chattanooga, TN 37402 Shipping Address: 4601 North Areus%Road. Bldg. A, Chattanooga, TN 37415 I'hone: (423) 876-4318 Fax: (423) 876-4137 IIIIIIIIIIIIIIIIIIIIIIII1111liiilllli Customer: QA RECORD CLS KNOXVILLE 400 W. SUMMIT HILL DR.

KNOXVILLE. TN 37902 Instrument Information: Calibration Information:

Description:

DIGITAL THERMOMETER Cal I)atc: 0111112010 Manufacturer: AZONIX Due Dale: 0111112011 Model: A1011-RS-AO-RT41 Interval: 12 Months Serial Numher: Cal Instruction: 308.02-003 As Found: In Tolerance As Left: In Tolerance Ambient Temperature: 721F +1- 21F Ambient Humidity: <=50% RH This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/1lEC 17025. 10CFR50Appendix B, ANSII N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST),

officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced, except in full, without the written approval of CLS.

Technical Remarks:

Standards Utilized TVA I.D. Mfg. Model No. Description Cal. Date Due Date 259304 HONEYWELL 1190 RESISTANCE STANDARDI OHM 05125/2005 05W25/2010 906374 ERTCO ASTM 17F GLASS THERMOMETER 12/01/2009 12(0812010 E29099 GUILDLINE 6675A DC RESISTANCE BRIDGE 11/1012009 11/10/2010 (Calibrated by: Matthew R. Snyder Approved By: Sam Bertram 01112/2010 Sr Metroloov Tech Calibration Supv Date This report was electronically approved using Edison Mud'cats Metrology Suite Ver. 2.2.1.

26

Tennessee Valley Authority CENTRAL LABORATORIES SERVICES Cust. I. D.No.: 906527 CHATTANOOGA& TENNESSEE Page No.: 2 of 2 CALIBRATION REPORT Date of Report: 1(11(10 Remarks: Accuracy = 0 004 Ohms Certification is limited to channels 1 and 24 channels 3 and 4 are not certified.

Limited certification label is attached.

Left as found.

• Denotes out of tolerance.

AS FOUND Standard Resistance UUT Reading Probe (Ohms) (Ohms) Error (Ohms) 1 89.9999 90.001 0.001 100.0000 100.001 0.001 119.9999 120.002 0.002 2 89.9999 90.001 0.001 100.0000 100.001 . 0.001 119.9999 120.000 0.000 27

TVA Procedure for Calibration of HOBO Water Temperature Probes 28

TITLE Instruction No. 450.01-020 Rev. No. 0 Page No. 1 of 7 CENTRAL Certification of HOBO Water Temp Pro Data LABORATORIES Acquisition SystemsH2 0-001 SERVICES QUALITY PROGRAM INSTRUCTION Effective Date 5/19/03 LEVEL OF USE IJ Continuous Z Reference El Information QA RECORD Dennis T. Darby 5/19/03 Preparer Date Paul B. Loiseau, Jr. 5/19/03 Technical Reviewer Date Administrative Few 0 te APPROVAL Jerry D. Hubble 5/19/03 Department Manager Date 29

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-001 Rev. 0 Eff. Date 5M1903 Page 2 of 7 REVISION LOG Revision Effective Pages Number Date Affected Description of Revision 0 5119/03 J All Initial Issue.

_____ 1 ___ .1___ L_________________

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 30

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-001 Rev. 0 Eft. Date 5M19103 Page 3 of 7 1.0 PURPOSE To provide uniform and effective certifications of Hobo Water Temp Pro data acquisition systems meeting the accuracy and performance requirements of TVA's water temperature-monitoring programs. This technical instruction uses the method of comparison with a laboratory standard thermometer.

2.0 SCOPE This instruction applies to the certification of Hobo Water Temp Pro data loggers manufactured by Onset Computer Corporation of Bourne, Massachusetts. The Hobo Water Temp Pro is a data acquisition system containing a temperature sensor, data logger and battery sealed in a sinVge submersible case. The Hobo Water Temp Pro is programmed and data retrieved by use of an infrared interface located in one end of the case. Hobo Water Temp Pros are certified upon receipt from the manufacturer at no greater than 12 month intervals during use or when requested.

3.0

SUMMARY

In this three-point certification systems are tested as actually used over the historical water temperature range of 30' to 100'F and submerged in water. The three test points are 37', 65' and 93'F. The systems are required to perform within Onset Computer Corporation tolerances. System conformity at each temperature point is determined by comparing system temperature, logged by the Hobo Water Temp Pro and a laboratory standard thermometer.

Systems are programmed and submerged with a standard thermometer in a stiffed, temperature-controlled temperature bath. The systems are read after the test by an infrared interface adapter connected to a computer running Onset Computer Corporation's Boxcar Pro software. Traceability of the certification is through the thermometer.

'As-found" certifications are performed on new systems as an acceptance test and on sensors returned from field service. =As-left" certifications are performed before delivery for field service ifmore than 12 months has elapsed since the last certification. 'As-fonmd( and Xas4ert certifications may be combined on the same record ifthere is clear indication which type each system is undergoing.

Multiple HOBOs may be certified at the same time in the temperature bath.

31

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems HI0-001 Rev. 0 Eff. Date 5119103 Page 4 of 7

• Accuracy of -0.20 C at 25cC (0.330 Flat 70'F)

• Waterproof case, submersible to 100 feet

• Capacity to store up to 21.580 temperature measurements

• Selectable sampling interval from 1 second to 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> S Programmable start time/date

• Two data recording modes: Stop when full o wrap around when full.

• Two data offiload modes: Halt then offload or offload while logging.

• Nonvolatile EEPROM memory that retains data even if batteries fail

• Light-emitting diode (LED) operation, indicator, which can be disabled duiing logging by selecting "Stealth"1 mode

• High-speed IR conrniunications for offloading data; can readout full logger in less than 30 seconds while logging continues

• Battery life of 6 years with typical usage 4.0 PRACTICES/EXCEPTIONS N/A 5.0 SAFETY 5.1 Standard electrical equipment safety.

6.0 STANDARDS USED 6.1 Laboratory reference thermometer, range 30= to 100F or greater, 0.0 1F resolution,

0. VF accuracy or better, with current calibration sticker.

7.0 EQUIPMENT/APPARATUS 7.1 Temperature bath, stirred, temperature-controlled.

7.2 Computer with Onset Boxcar Pro software installed (version 4.3 or Cater) 7.3 IR Base station, Onset Part # BST -IR 8.0 PREREQUISITE ACTIONS 8.1 Turn on temperature bath and set for 37FF.

8.2 Check the IR interface to verify that it is plugged into the correct serial port on the PC.

Set the correct time on the PC.

8.3 Align the IR port on the Base station with the HOBO Water Temp Pro communications window. Place the logger no further than 4 to 5 inches away from the Base station (see Figure 2) and make sure the IR windows in both devices point at each other. There is a 30' acceptance angle for the IR beam, so some misalignment is acceptable.

32

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H2!0-001 Rev. 0 Eff. Date 5119103 Page 5 of 7 8.4 Start the Onset Box Car Software and select Logger then Hobo Water Temp Pro and Launch.

8.5 The computer will respond with a Est of loggers found. The serial number in this list should match the serial number printed on the side of the logger. If these numbers do not match, click the Refresh button. Record this serial number on the certification form.

Either wait or click the Stop Searching button. Using the mouse select the logger and click Me Launch button.

8.6 After a few seconds the screen will display the status of the HOBO Water Temp Pro.

Record the battery percentage on the certification form.

8.7 Verify that the Hobo is set to Fahrenheit and program it to a recording interval of 0:1:0 for a reading once a minute. Verify that the start logging immediately box is checked and that the set data logger clock with host launch is also checked.

8.8 Using the mouse dick the Launch Immediately button.

8.9 If last HOBO is programrmed dick the DONE button, else select the Launch Another and repeat steps 8.5 through 8.9.

9.0 TEST PROCEDURE/METHOD 9.1 On the certification form record the serial number of the laboratory reference thermometer.

9.2 Place the HOBO Water Temp Pro in the temperature bath, making sure the end opposite the IR vindovs is submerged, and allom the bath to stabilize at 37SF +/-0.5'F on the thermometer. Adjust the bath set point if needed. After the bath reaches the desired temperature allow 20 minutes 'soak time' for the HOBO to reach its final temperature.

9.3 Record the thermometer reading on the certification form and the lime. (The time will be needed to get the correct reading from the HOBO.)

9.4 Repeat steps 9.2 and 9.3 for bath settings of 65.0CF +/- 0.5'F and 93'F +/- 0.5'F.

9.5 Remove the HOBO from the temperature bath and align the IR port on the Base station with the HOBO Water Temp Pro communications window.

9.6 Restart Onset BoxCar Pro if it is not running and select Logger then Hobo Water Temp Pro and Readout.

9.7 The computer will respond with a list of loggers found. Using the mouse select the logger and click the Readout button. The computer will ask to download data and continue logging or the stop logging and offload data. Select the Stop Logging and Offload data. After a few seconds the computer will respond with a suggested file name. Select Save and allow the HOBO to transfer the data.

9.8 After a successful download click the OK button. The computer will then ask if the data should be displayed in Centigrade or Fahrenheit. Deselect °C and select 'F and click OK. The computer should display a graph of the collected data. Click the view details button (this is the button just left of the question mark button.)

33

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-001 Rev. 0 Eff. Date 5119103 Page 6 of 7 9.9 Scroll down the displayed list until the time recorded for the 37F point is found- Record the corresponding temperature on the certification form. Repeat this step for 655 and 93w 9.10 Close the view details windows and repeat steps 9.6 through 9.9 for additional HO6Os.

9.11 Fil out the rest of the certification form.

10.0 ACCEPTANCE CRITERIA 10.1 Based upon the manufacturer specifications the HOBO Water Temp Pro should be within +/-0.4=F over the range of 32F to 100'F. Any HOBO with an error of greater than

_0.50 F at any of the three measured points shall fail certification.

11.0 POST PROCEDURE ACTIVITY 11.1 Close the BoxCar Software.

12.0 RECORDS 12.1 Completed HOBO Water Temperature Pro Certification form and associated Report of Certification cover sheet is a QA record.

13.0 REFERENCE 13.1 HOBO Water Temp Pro Usefs Manual, version 1.0 or later 13.2 Onset BoxCar Pro4 Manual Version 1.0 or later 34

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systemrs H20-001 Rev. 0 Eff. Date 5119103 Page 7 of 7 TENNESSEE VALLEY AUTHORITY SN CENTRAL LABORATORIES SERVICES Page 400 W. Summit Kill Drive, Mail Stop SPB BA-K Date Knoxvile, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER TEMP PRO CALI BRAT] ON RECORD Date of Certifra*.icn: April 25, 20D1 Type of Certification: As-found As-Left X SENSOR 37 deg F 65 degF 93degF Baitery INFO BATH TEMP BATH TEMP BATH TEMP P F L For A A I As-Found Limits Limits Limits S I F List Plant 0.40 degF OBSVD 0.40 degF OBSVD 0.40 degF OBSVD S L E SIN& PLN1 -0.40 degF ERROR -0.40 degF ERROR -0.40 degF ERROR 1 0.00 0.00 0.00 '

2 0.00 0.00 0.00 ,

3 0.00 0.00 0.000 4 0.00 0.00 0.000 5 0.00 0.00 0.00 /

6 0.00 0.00 0.00 /

7 0.00 0.00 0.00 /

8 0.0 0.00 0.00 1/

9 1 0.00 0.00 0.00 1, 10 1 0.00 0.00 0.00 1 SENSOR TYPE: HOBO Water Temp Pro H-4)4-001 Remarks:

35

Calibration Certificates for HOBO Water Temperature Probes Table of HOBO Probes Used for the WBN Survey Summarized Herein Station Depth HOBO Logger Station Depth HOBO Logger (Figure 3) (feet) (Serial Number) (Figure 3) (feet) (Serial Number) 0.5 1305180 0.5 9790911 WBI 3 9776682 3 9790905 WB7 5 1305184 5 9790907 7 1304890 7 9790908 0.5 9674342 0.5 9791154 WB2 3 9674349 WB8 3 9791149 5 9674341 5 9791151 7 9776681 7 9791145 0.5 9790917 0.5 9791097 WB3 3 9790914 3 9791100 WB9 5 9790921 5 9791102 7 9790915 _____ 7 9791103 0.5 9790938 0.5 9791170 3 9790940 3 9791171 WB4 WB 10 5 9790943 5 9791172 7 9790941 7 9791174 0.5 9790931 0.5 9791196 WB5 3 9790926 WB 11 3 9791168 5 9790930 5 9791175 7 9790925 7 9791176 0.5 9790909 0.5 9791192 WB6 3 9790912 WB 12 3 9791191 5 9790932 5 9791190 L 7 9790924 7 9791130 36

Pre-Survey Calibrations TENNESSEE VALLEY AUTHORITY ID E43165 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 06128/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CAUBRATION Calibrated For:. Hydrothermal Compliance Date of Report: 06/28/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E43165 Manufacturer'. Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description Calibration Date I[ Calibration Due Date 906527 Azonix A101 l-RS-XX Therm/Ohmmeter 01/11/2010 01111/2011 906535 Bums Engineering 12001 PRT 12110/2009 12110/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix 8 and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ZoL .ýt hl Approved By: _ __ _

Date Approved:

S'/3/zoio A/

37

TENNESSEE VALLEY AUTHORITY ID E43165 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 06/28/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy -0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.955 64.993 92.952 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 dei F ERROR -0.40 de F ERROR WB1 - 7 ft t I I I I I I I I 113040901 36.94 -0.021 65.10 1 0.111 93.09 1 0.141 V 1 3.57 SENSOR Tr'YPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log. AJ*,A L,,,,-r ,, SP'- , T 38

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44406 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 06/30/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For Hydrothermal Compliance Date of Report: 06/30/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44406 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. j{ Description j[ Calibration Date ][ Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12110/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ., ,eAAAV Uti Approved By: _ _ _ _ _

Date Approved: 1/3/12-10 39

TENNESSEE VALLEY AUTHORITY ID E4-06 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SP8 BA-K Date 06/30/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (8W5) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100"F Accuracy i0.4°F 37 deg F 65 deaF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.948 64.997 92.953 A A I Sensor Umits Limits Umits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 d22 F ERROR WB 1-It 1305180 37.04 0.091.

65.10 I 0.111i 93.05 1 0.091 I I

I I

I 3.57 w25 It 974341 384 -0.111 64.97 I -0.021 92.90 -0.051 I 3.57 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log. VL41 J VU^.,i -r" SF=a4*,. "7w-wrT 40

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY lID E44407 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 06/30/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 06/30/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44407 Manufacturer. Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D.No. Description Calibration Date Calibration Due Date 906527 Azonix A10I11-RS-XX ThermlOhmmeter 01/11/2010 01/1112011 906535 Bums Engineeri* 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: Approved By:_____________

Date Approved: ' /3 /2..' 0 41

TENNESSEE VALLEY AUTHORITY ID E44407 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 06/3012010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy -0.4"F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.935 64.995 92.953 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 de ERROR -0.40 deg F ERROR -0.40 deg F ERROR I732 37.0 on s 65.10 I-5 09, WB2 - / ft SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long perod of time and no calibration label will be attached.

The current calibration report will be inthe Instrument Log. L./BpJ /- .2 ,.pgm.. el..14,- 7" 42

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44410 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 07/26/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 07/26/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44410 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No.. Description Calibration Date 1[ Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/1112011 906535 Bums Engineering 12001 PRT 12/10_2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: .J_ , Qý.' Approved By: Z' u 11F/

Date Approved:

43

TENNESSEE VALLEY AUTHORITY ID E44410 CENTRAL LABORATORIES SERVICES Page 2 of 2 400oW. Summit Hill Drive, Mail Stop SPB BA-K Date 07/2612010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100"F Accuracy *0.4"F 37 deg F 85 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.956 64.998 92.957 A A I Sensor 0.m4ts Bimits Limitsd S I F Serial 0.40 dog F OBSVD 0.40 dog F OBSVD 0.40 dog F OBSVD S L E Number -0.40 deg F ERROR F-0.40 ERROR -0.40 de RROR WB1 -5ft 1305184 37.08 0.13 633 1 0.23 93.19 1 0.231 V 3.60 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged In water for a long period of time and no calibration label will be attached.

The current calibration reoort will be in the Instrument Len.

The current calibration reDort vWIIbe in the Instrument Lon RFN Pm Clthrntdtn BFN Pre Calibration 44

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44414 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 07129/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4998 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CAUBRATION Calibrated For Hydrothermal Compliance Date of Report: 07129/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44414 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. 11 Description Calibration Date I[Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 4

• 4-I t 4 +

4 I +

This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which Is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: , A j Approved By:

Date Approved:

45

TENNESSEE VALLEY AUTHORITY ID E44414 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 07292010

" Knoxville, Tennessee 37902 on:(865)ý 63-2304 Fax: (865) 632-499 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy -0.4"F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.954 64.998 92.953 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F F . E -RROR -0.40 deg F ERROR WB2 - 7 ft 9776681 36.84 -0.11 64.93 1 -0.07 92.90 -0.051 v1 3.54 WB1 -3 ft 9776682 36.84 -0.11 64.93 -0.07 92.90 -0.05 1 3154 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label wIll be attached.

The current calibration report will be in the Instrument Log.

Initial pre calibration.

46

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44416 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 0712812010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 07/28/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44416 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. I Description ][ Calibration Date Calibration Due Date 906527 Azonix A10 1-RS-XX Therm/Ohmmeter 01111/2010 01/11/2011.

906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025. 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST). officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ,e/_Z4.L,1.l-- Approved By: __ _ __ _ __. _

9//c O Date Approved:

47

TENNESSEE VALLEY AUTHORITY ID E44416 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive. Mail Stop SPB BA-K Date 07/2612010 Knoxville, Tennessee 37902 Phone: (M65)632-2304 Fax. (115) 632-4896 WATER TEMPERATURE HOBO WATER PRO CAUBRATION RECORD Range 0 to 100 )-F Accuracy *0.4"F 37 dog F 65 degF BT 93degF Pany BATH TEMP BIATH TEMP BATH TEMP P F L 36.961 64.998 92.964 A A I isensor Limtfls Umbt Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 dea F ERROR -0.40 del F ERROR -0.40 deg F ERROR WB2-3 ft 9674349 36.94 -0.02 65.02 0.02 93.00 0.04 3.70 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remaft These Instruments are submerged In water for a long period of time and no calibration label will be attached.

The current callbration report will be inthe Instrument Log.

BFN Pm Calibration 48

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ,D E44417 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/0612010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 08106/2010 Item

Description:

HOBO WATER PRO ". 'VA-?.!D.'No.: E44417 Manufacturer Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description 11 Calibration Date II Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix 8 and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: Jjd...0.. Approved B y:

Date Approved: W~~~/o~

49

TENNESSEE VALLEY AUTHORITY ID E44417 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mall Stop SPB BA-K Date 08/06/2010 Knoxville, Tennessee 37902 Phone: (8W5) 632-2304 Fax: (865) 6324996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100"F Accuracy +/-O.4"F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.959 65.000 92.955 A A I fSensor Limits Limits Limits S I F Senral 0.40 deg F OBSVD 040 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB7-3 ft 197909051 36.81 -0.15 65.02 I 0.021 93.00 I 0.041 I I 3. I WB7 - 9790907 37.04 0.08 65.06 . 93.00 0.04 V 3.54 WB7-7ft 9790908 36.84 -0.12 64.93 -0.07 92.86 -0.10 ' 3.54 WB6 - 1/2 ft 9790909 36.99 0.03 65.06 0.06 93.00 0.04 1 3.57 WB7 - 3 ft 97909111 36.94 -0.021 85.02 0.02 93.00 -0.041 / 3.54 WB6 -3f ~ 97909121 36.80 1 .0.161 64.9 1 -0.11 92.86 1 -0.101 1 II 3.

SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

Initial Pro Calibration.

50

Pre-Survey Calibrations (Continued)

I I

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For Hydrothermal Compliance Date of Report: 08/06/2010 Item

Description:

HOBO WATER PRO TVA ID. No.: E44418 Manufacturer Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description Calibration Date Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01111/2011 906535 Bums Engineering 12001 PRT 12110/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: J . h4 e -I. J Approved By:

Date Approved: '// ),o 51

TENNESSEE VALLEY AUTHORITY ID E44418 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/06/2010 Knoxville, Tennessee 37902 Phone: (8W5) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORQ Range 0 to 100"F Accuracy i0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.959 65.000 92.955 A A I Sensor Umits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 dea F ERROR -0.40 de F ERROR.

WB3 - 3 ft 0.09 3.54 9790914 36.94 -0.02 6.06 0.06 93.05 WB3 - 7 ft 9790915 36.94 -0.02 65.02 0.02 92.95 0.00 V 3.54 WB3-Yft 197909171 36.89 II -0.071 65.02 1I 0.021 9300 1I~~~~ 0.041I VI I 354 I I

W3 197909211 37.04 0.08 I 65.10 1 0.101 93.09 1 0.141 V 1 1 3.5 I SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

Initial Pre Calibration.

52

Pre-Survey Calibrations (Continued)

I f

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 I

Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For-. Hydrothermal Compliance Date of Report: 08/09/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44419 Manufacturer:. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.0. No. Ij Description, I Calibration Date ]( Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: _j.L Ndl Approved By: /:

Date Approved: j 0O 53

f TENNESSEE VALLEY AUTHORITY ID E44419 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/09/2010 Knoxville, Tennessee 37902 Phone: (W85) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100*F Accuracy -0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.958 64.995 92.953 A A I Sensor Limits Limits Limbts S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERRORi WB6 - 7 ft 9790924 37.04 0.08 65.10 0.11 93.05 0.09 / 3.54 WB5 -7 ft 9790925 36.99 0.03 65.10 0.11 93.05 0.09 / 3.54 WB5 - 3 ft 9790926 36.99 0.03 65.10 0.11 93.05 0.09 v _ 3.54 WB5 - 5 It 9790930 36.94 -0.02 65.02 0.02 93.00 0.04 V 3.57 WB5 - Y ft 9790931 36.99 0.03 64.97 -0.02 92.90 -0.05 / 3.54 WB6 - 5 ft 9790932 36.64 -0.12 64.85 -0.15 92.71 -0.24 " 3.54 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

Initial Pre Calibration.

54

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44420 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mall Stop SPB BA-K Date 08/0612010 Knoxville, Tennessee 37902 Phone: (8Ik5) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For Hydmthernal Compliance Date of Report: 08106/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44420 Manufactuier Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. II Description J[ Calibration Date IICalibration Due Date]

906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/1112011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: _AI. km Approved By:  : _/*

I 9 1 1~L11()

Date Approved:

55

TENNESSEE VALLEY AUTHORITY ID E44420 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/06/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 6324996 WATER TEMPERATURE HOBO WATER PRO CALIBRATIONREOWD Range 0 to 100"F Accuracy +/-0.4"F 1 37 deg F 65 degF 93 degF F Battery ATIH T.MP BAIH ITMP RIITH ITEMP P L 3&958 64.995 92.953 A A I

+

Sensor Umits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E

.. flAndwu F: FRRAR -fl An ep,n FRRAR Number -0.40 dea F ERROR -0 40 d F ERROR 4 -0 40 d F ERROR I I w197909381 36.84 I -0.21 65.02 i o0.021 92.95 o.0 vI I . 1 W - 314 ft 9790940 36.99 0.031 65.06 0.06 93.00 0.04 V 1 3.57 WB4- 7 ft 9790941 37.04 0.08 65.10 0.11 93.05 0.09 V 3.54 w97909431 36.94 1 -0.021 64.97 I *0.021 92.90 i -0.051 / I I 3. I SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged In water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

Initial Pre Calibration.

56

Pre-Survey Calibrations (Continued)

-I TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CAUBRATION Calibrated For: Hydrothermal Compliance Date of Report: 08111/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44421 Manufacturer. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. I-Desction Calibration Date Calibration Due Date 906527 Azonix AlO1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOIIEC 17025. 10 CFR 50 Appendix 8 and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: AuxI Approved By:

Date Approved: )o0 57

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRQCA1JBB'ATION RECORD Range 0 to 100"F Accuracy *0.4"F 1 37 dea F 1 65 deaF 1 93 deoF Battery IO.nJ .re..n I 1BALI DP.Ifrl

&tr I.r-'"r 99I5 I5 II=MI P F L 64.999 92.955 A A I 36.955 Sensor Umits Limits Umits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD L S E Number -0.40 dea F ERROR -0.40 deo F ERROR -0.40 dao F ERROR 4 - - - -- -~ - - -

W

• 19791097 *ft W.99 0.031 65.10 0.10 93.00 0.04 1 I 5I WB9 - 3 ft 9791100 36.94 -0.02 65.10 0.10 93.09 0.14 1 3.54 W9791102 36.89 -0.06 64.97 -0.02 92.86 -0.10 V, 3.54 WB9 - 7 ft 9791103 36.99 0.03 65.06 0.06 93.00 0.04 V 3.54 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged In water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

initial Pre Calibralion.

58

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44895 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/11/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For. Hydrothermal Compliance Date of Report: 08/11/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44895 Manufacturer Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description Calibration Date FCalibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/111/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 E

This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: .1AA J 4 Approved By:_ _ _ _

Date Approved: _ _ _

59

TENNESSEE VALLEY AUTHORITY iD E44895 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mall Stop SPB BA-K Date 08/11/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 6324996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECOk" Range 0 to I00'F Accuracy -0.4*F 37 deg F 65 dngF 93 degF Battery BATHTEMP BATH TEMP BATH TEMP P F L 36.954 64.994 92.953 A A I Sensor Umits Limits Limits S I F serial 0.40 deg F OBSVD 0.40 degF OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 dNg F ERROR WB12 -l7ft F99130 1 35.9T 9 0.031 65.10 o1 0,1 93.0 I 0.091 -, I I 3.57 I 1

3....

1 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label wiH be attached.

The current c~alibration eoodt will be in the Instrument Loo.

Initial Pm Calration.

60

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY -ID E44897 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/12/2010 Knoxville, Tennessee 37902 Phone: (885) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For. Hydrothermal Compliance Date of Report: 08/12/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44897 Manufacturer. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description Calibration Date j[ Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12110/2009 12/10)2010 Ii This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: JO J ý Approved By:

Date Approved: '/x9/(f 61

TENNESSEE VALLEY AUTHORITY ID E44897 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08I12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100'F Accuracy -0.4"F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.954 64.997 92.954 A A I Sensor Limits Umits Umits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 degn F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB8 -7fIt 19791145 36.84 I -0.11 64.85 I -0.151 92.71 I -0.24 V 3.54 WB8 - 97911491 3.84 1 o-0i 4.93 I -0.071 92.90 I 11

-0.0o 40.5 3.54 WB8 9791151 37.04 0.08 65.10 0.11 93.05 1 0.091 V 1 1 3.5 WB8 - Y2 It 197911541 37.08 10.131 65.15 7 0.151 93.09 1 0.141 V 1 1 3.4 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be In the Instrument Log.

Initial Pre Calibration.

62

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44899 CENTRAL LABORATORIES SERVICES Page 1 of 2 I 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 08/12/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44899 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description J[ Calibration Date ]=Calibration Due Date 906527 IAzonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 4 4 4 4 4 4

4

.1. _________________________ L This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: Za L Ale, .- Approved By:

Date Approvedcl: _V '/

63

TENNESSEE VALLEY AUTHORITY ID E44899 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.956 64.998 92.954 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 dog F ERROR -0.40 deg F ERROR W1ll -3ft 9791168f 36.84 1 -0.11] 64.93 -0.07] 92.90 -0.051 1 3.54 1 WB10 - ft 9791170 36.84 -0.11 64.97 -0.02 92.90 -0o.05o 3.54 WB10- 3 ft 9791171 37.04 0.08 65.15 0.15 93.14 0.19 v' 3.57 WB10"- 5 9791172 36.89 -0.07 64.97 -0.02 92.90 -0.051 " 3.54 WB1- 9791174 37.04 0.08 65.10 0.10 93.05 0.09 1 3.57 WB11 - 5 ft 9791175 36.89 -0.07 65.02 0.02 92.95 o 0.00 3.57 WB11 -7ft 9791176 36.84 -0.11 64.93 -0.07 92.86 -0.10 " 3.54 SENSOR TYPE: HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

Initial Pre Calibration.

64

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For Hydrothermal Compliance Date of Report: 08/13/2010 item

Description:

HOBO WATER PRO TVA I.D. No.: E44901 Manufacturer Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description 11 Calibration Date I Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01111/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: _i Approved By: _& __

Date Approved: q //0 65

TENNESSEE VALLEY AUTHORITY ID E44901 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 08/13/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (885) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy :0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.957 64.999 92.954 A A I Sensor Limits Limits Limits S 1 F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 dog F OBSVD S L E Number -0.40 deg F ERROR .0.40 deg F ERROR -0.40 dog F ERROR WB12-5ft 9791190 6.9 0.03 65.06 0.061 93.00 0.04 V 3.54 WB12 - ft 9791191 37.04 0.08 65.06 0.06 93.00 0.04 1 3.54 WB12 - V2 I 9791192 36.94 -0.02 64.97 -0.02 92.86 -0.10 . 3.57 WB111/2 9791196 36.84 -0.121 64.93 1-0.071 92.86 -0.101 e1 3.54 SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

Initial Pre Calibration.

66

Post-Survey Calibrations TENNESSEE VALLEY AUTHORITY ID E4316 I CENTRAL LABORATORIES SERVICES Page 1 of 2I Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/0612010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E43165 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description Calibration Date Calibration Due Date 906527 Azonix A1011-RS-XX Thenm/Ohmmeler 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Duality Assurance Program vwlich is designed to meet the requirements of ISO/IEC 17025. 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except inlull, without the written approval of CLS.

Calibrated By: kloý_ Approved By: __

Date Approved: //i//

67

TENNESSEE VALLEY AUTHORITY ID E43165 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/06/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.957 64.998 92.955 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB1-7ft 1314901 37.04 0.08 65.10 1 .0.10 i 93.09 141 I 1 3.60 I SENSOR TYPE: HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

68

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID- E44406 CENTRAL LABORATORIES SERVICES page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 1=/0612010l Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/06/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44406 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description Calibration Date Calibration Due Date?

906527 JAzonix A1011-RS-XX Therm/Ohmmeter 1 01111/2010 J 01/11/2011 906535 1Bums Engineering 12001 PRT I 12/10/2009 1 12/10/2010 4 4 1-4 4 4 4 4 +

• 4 +

4 4 4 4 4 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025. 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSi/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full. without the written approval of CS.

Calibrated By: .0 " .. Approved By:

Date Approved: it I /ito 69

TENNESSEE VALLEY AUTHORITY ID E44406 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/06/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 6324996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.957 64.998 92.955 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB1 -%ft 1305180 37.04 0.08 65.10 0.10 93.05 1 0.09 "3.57 1 WB2 - 5 ft 9674341 36.89 -0.07 64.97 -0.02 92.90 -0.05 1" 3.57 SENSOR TYPE: HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

70

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 1010612010 Item Description. HOBO WATER PRO TVA I.D. No.: E44407 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

iD.DNo. Description j[ Calibration Date II CalLbration Due Date 906527 AzonIx A101 t-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSf/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: //4. 44Z7___ Approved By:

Date Approved: / ///

71

I id E44407 TENNESSEE VALLEY AUTHORITY Page 2 of 2 CENTRAL LABORATORIES SERVICES Date 10106/2010 400 W, Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone. (865) 632-2304 Fax: (865) 632-4996 CALIBRATION RECORD WATER TEMPERATURE HOBO WATER PRO Accuracy +/-O.4*F Range 0 to 1 00°F 93 de F Battery 37 deg F 65 djeF BATH TEMP P F L BATH TEMP BATH TEMP 92.955 A A I 36957 64.998 Limits S I F Sensor Limits Limits 0.40 deg F OBSVD S L E Serial 0.40 deg F OBSVD 0.40 deg F OBSVD Number -0.40 deg F II ERROR -0.40 deg F ERROR

-T F

-0.40 deg F ERROR 1 -

WB2 - Y2 ft PI *O 9b 1 -V4 4,A2 .I "ý SENSOR TYPE: HOBO Water Temp Pro U22-001 of time and no calibration label will be attached.

Remarks These Instruments are submerged in water for a long penod I he current calibration report will be in the Instrument Log, WBN Post Cal Summer 2010.

72

Post-Survey Calibrations (Continued)

I TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/0612010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44410 Manufacturer. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. I Description Calibration Date 1i Calibration Due Date 906527 jAzonix A1011-RS-XX Therm/Ohmmeter 01111/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010

-i +

t +

t +

This Is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: &Odie A"4 Z Approved By:

Date Approved: fill Ito 73

TENNESSEE VALLEY AUTHORITY id E44410 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/06/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax. (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-04°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L Sensor 36.957 Limits BS D 64.998 Limits 92.955 Limits A S AI FI Serial 0.40 deg F OBSVD 0.40 (leg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -040 deg F ERROR -0.40 ,deg F ERROR WBI-5ft 1305184 I 37.13 1 0.171 65.23 1 023

%93 1 SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calbration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

74

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/06/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44414 Manufacturer. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration In tolerance Standards Used Log.

lI.D. No. Description Calibration Date i[ Calibration Due Date 906527 Azonix A101o-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: " 4 Approved By:

Date Approved: l/I Io 75

TENNESSEE VALLEY AUTHORITY ID E44414 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/06/2010 Knoxville, Tennessee 37902 Phone, (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to I00°F Accuracy +/-0.4'F 37 deg F 65degF 93 deaF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.957 64.998 92.955 A A I Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -040 deo F ERROR -0eF ERROR -0.40 dea F ERROR WB2 - 7 ft 9776681 36.84 -0.21 64.93 -0.07] 92.90 -0.05 -/ 3.54 WB1 -3ff 9776682 36.84 -0.12j 64.93 -0.07] 92.86 -0.101 3.57 SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached The current calibration report will be in the Instrument Log WBN Post Cal Summer 2010, 76

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44416 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-Kh Date 10/06/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4998 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For.: Hydrothermal Compliance Date of Report: 10/06/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44416 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration In tolerance Standards Used Log:

SID.No. lDescription ][ Calibration Date 1j Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/1112010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSItNCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except In full, without the written approval of CLS.

Calibrated By: 44hJ..-A zz Approved By:

Date Approved: /1f/fo 77

TENNESSEE VALLEY AUTHORITY ID E44416 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/06/2010 Knoxville, Tennessee 37902 Phone. (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.4°F WB2 -3ft 96743491 36.94 I -00,1

-02 R~ 02 6502--

0021 93.00 1 0.041 /( 1 1 35 1

SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

78

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44417A CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mall Stop SPB BA-K Date 1010612010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (885) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/06/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44417 A Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

1.0. No. Description Calibration Date Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohm meter 01/11/2010 01/11/2011 905535 Sums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shell not be reproduced except in full, without the written approval of CLS.

Calibrated By: Z,9"A-.,. Approved By:

Date Approved: Ii I/o, 79

TENNESSEE VALLEY AUTHORITY ID E44417_A CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hilt Drive, Mail Stop SPB BA-K Date 10/06/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 1 001F Accuracy +/-0.4'F 37 deg F 65 deF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.957 64.998 92.955 A A I Sensor Limits LimiLs Limits S I F Serial 040 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -040 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB7 - 3 ft [97. 9090 36.9,.07~ 65.02 .2,30 ____

WB7- 5 ft 790907 36.99 0.031 65.06 0.061 93.00 -0.41 ,/ 3.54 WB7-7ft 19790908 36.84 -0.12[ 64.93 -0.071 92.86 1-0.101 v11 3,54 J II SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

Tre current calibration report will be in the Instrument Log.

WSN Post Cal Summer 2010.

80

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E4441 7B CENTRAL LABORATORIES SERVICES Page i of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For Hydrothermal Compliance Date of Report: 10/12/2010 Item

Description:

HOBO WATER PRO TVA ID. No.: E44417 B Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

ID. No.I Description Calibration Date Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/1112010 01/1112011 906535 Bums Engineering 12001 PRT 12110/2009 12110/2010 4 I.

f .4 I.

This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except Infull, without the written approval of CLS, Calibrated By: & 4 4 ..,.l Approved By:

Date Approved: 11 111 81

TENNESSEE VALLEY AUTHORITY ID E44417_B CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100-F Accuracy +/-0.41F 37 deg F 65 deciF 93 de F Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.952 64.993 92.952 A A I Sensor Limits Limits Limits S I F Sena! 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB6 - % ft 97909091 36.94 1 -0.01 65.06 I 0.07 93.00 I 0.01 9" 3.57 WB7 - 1/2 ft 19790911 36.94 -0.011 65.02 1 0.021 92.95 o.ol , L 1 WB6 - 3 ft 197909121 36.84 I -0.111 64.89 I -0.11 92.86 I -0.101 I I 3,57 I SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submeroed in water for a long period of lime and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

82

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY. ID E44418 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10112/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/12/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44418 Manufacturer Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450,01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Description {[ Calibration Date l[ Calibration Due Date 906527 LAzonixAl011-RS-XX Therm/Ohmmeter 01/11/2010 01/111/2011 906535 Baums Engineering 12001 PRT 12/10/2009 1211012010 4 +

I' 4 I' $

This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CPR 50 Appendix 9 and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST). officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: Att.i /. -21 Approved By:

Date Approved: 1(111(0 83

TENNESSEE VALLEY AUTHORITY iD E44418 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.41F 37 deq F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36952 64.993 92.952 A A I Limits Limits Limits S I F I Serial 040 deg F OBSV 040 CI deg F OBSVD 0.40 deg F OBSVD S L E Number -0 40 de9 F ERROR -0.40 deq F ERROR -0.40 deg F ERROR WB3- 3 ft 9790914 36.94 -0.01 65.06 0.07 93.05 0.09 ,' 3.57 WB3- 7 ft 9790915 36.94 -0.01 65.02 0.02 93.00 0.05 1 354 WB3-1/2ft J97909171 36684 -0.111 65.02 0.021 93.00 1 0.051` I 3.57 I WB3-5ft 19 7 90921 37,04 I 0.081 65.10 I 0.111 93.08 1 31 1 f 3 57 1 I

SENSOR TYPE, HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label wIll be attached.

The current calibration report will be in the Instrument Log WBN Post Cal Summer 2010.

84

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/1212010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44419 A Manufacturer. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration In tolerance Standards Used Log:

ID. No. Description Calibration Date I[ Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 0111/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLSI Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025. 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recogniZed agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ,_,, Approved By:

Date Approved: IIt/ f 85

TENNESSEE VALLEY AUTHORITY ID E44419_A CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone. (865) 632-2304 Fax, (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100*F Accuracy +/-0.4'F 37 deg F 65 decF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.952 64.993 92.952 A A I Sensor Limits Limits Limits S I F Serial 040 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deqF ERROR -0.40 de. F ERROR -0.40 dei F ERROR _

WB6 - 7 ft 9790924 37.04 0.08 65.10 0.11 93.04 0.081 V 3.54 WB5 -7 ft 9790925 36.94 -0.01 65.10 0.11 93.06 0,09 V _ 3.57 WB5 -3 ft 9790926 3704 0.08 65.10 0.11 93.00 0.05 -1 1 3.57 SENSOR TYPE HOBO Water Termp Pro U22-001 Remarks These Instruments are submerg3ed in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WI3N Post Cal Summer 2010.

86

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44419_B CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For-. Hydrothermal Compliance Date of Report: 10/12/2010 Item

Description:

HOBO WATER PRO TVA 1ID. No.: E44419 B Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. JI Description Calibration Date ][ Calibration Due Date 906527 Azonix A10 1J-RS-XX ThermnOhmmeter 0111112010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrLmentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Qualify Assurance Program which is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standaros and Technology INIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated 8y: ,C , Approved By:

Date Approved: 11(1110 87

TENNESSEE VALLEY AUTHORITY iD E44419_B CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.4°F A

37 deg F 65 deoF 93 deqF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.961 64.996 92.954 A A I Sensor Limits Limits Limits S I F Serial 040 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -040 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB5-5ft 9790930t 3694 -0.02 65.02 0.02 92.95 0.001 3.57 WB5 -Y2ft 9790931 3689

-0.07 64.97 -0.02 I--0,10111 3.54 WB6 - 5 ft 9790932 36.75 211 -0.21 64.80 -0.19 9271 I

-0.241

-/

357 SENSOR TYPE: HOBO Water Temp Pro U22-001 Remarks These instruments are submerged in water for a long period of t~me and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WON Post Cal Summer 2010.

88

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44420 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 1011212010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10112/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44420 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet DIspositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

ID. No. Description Calibration Date Calibration Due Date 906527 Azonix A101I1-RS-XX Therm/Ohmmeter 01/1112010 0111112011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are.traceable to the National Institute of Standards and Technology (NISTI, officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full. without the written approval of CLS, Calibrated By: Approved By:

Date Approved: !1/I /10 89

TENNESSEE VALLEY AUTHORITY ID E44420 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10112/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (8651 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100-F Accuracy -.0.4*F 37 deg F 65 deQF 93 de F Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.961 64.996 92A954 A A I Sensor Limits Limits Limits S I F Serial 0,40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -040 deg F ERROR WB4 - Y2 f197M09381 36.84 -0,12L. 64 97 -0.021 92.95 0.001 / 3.57 WB4 - 3 ft 19790940 36 94 -0021 65.06 1 0.061 92 95 0.001 V 3t5 WB4-77ft 9790941 36.99 0.021 6510 I 0.111 93.05 0.091 3.54 WB4 -5 ft 197909431 36.89 .0.071 64.97 1 -0,021 92.90 1 0.051 V 3,57 SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log WBN Post Cal Summer 2010.

90

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44421_A CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/12/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44421 A Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositloned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I N Description Calibration Date Calibration Due Date 906527 Azonix A1011-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/1012010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Servces (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ,* L =L.., Approved By: 2 )4 ý Date Approved: 1111110 91

TENNESSEE VALLEY AUTHORITY ID E44421 -A CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/12/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: 865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0.4°F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.961 64.996 92.954 A A Sensor Limits Limits Limits S I F Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB9 - Y ft 197910971 36.99 1 0.021 65.06 1 0.061 93.00 1 0.041 1 1 3.57 SENSOR TYPE: HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

92

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44421 B CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/1512010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/15/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44421 B Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.,o. Description Ii Calibration Date Calribration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Bums Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated BY: ,/-L. , Approved By:

Date Approved: 1 .

93

TENNESSEE VALLEY AUTHORITY ID E44421.B CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/15/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100'F Accuracy +/-0-4*F 37 de F 65 deqF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36958 l 64.998 92.957 A A I Serial 040 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deq F ERROR -0.40 d" F ERROR -0.40 deg F ERROR WB9 -3 ft 97911 OI 36.94 -0.021 65.10 0.10 93.05 0.091 3.57 WB9 - 5 ft 197911021 36.89 -0.07. 64.97 -0.02 92.86 -0.10 , 3.57 WB9 -7 ft 97911031 36.99 0.031 6506 0.061 93.00 0041 3.57 SENSOR TYPE. HOBO Water Temp Pro U22-001 Remarks 1 hose Instruments are submerged in water for a long period o0time and no calibration label will be attached.

The current calibration reoort will be in the Instrument Log.

WBN Post Cal Summer 2010.

94

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44895 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/18/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/1812010 Item

Description:

HOBO WATER PRO TVA ID. No.: E44895 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

ID. No. Descriplion ] Calibration Date I[ Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 I '1 I, This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIINCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies. commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Caliorated By: Approved By:

Date Approved: ftii/1 95

TENNESSEE VALLEY AUTHORITY ID E44895 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/18/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100'F Accuracy -0 4°F WBI2-7ft i 197911301 37.0 0.081 65,10 T 0.111 93.05 0.091 V'1

~~1~~ I 1 5 I

SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached, The current calibration report will be in the Instrument Log_

VVBN Post Cal Summer 2010.

96

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44897 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/1912010 Knoxville, Tennessee 37902 Phone: (865) 032-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/19/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44897 Manufacturer. Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Disposltioned to: CLS Norris Lab As-Left calibration in tolerance Standards used Log ID. NO. Description II Calibration Date-[ Calibration Due Date 906527 Azonrx A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12110/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, ano ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute o0 Standards anc Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants This teport shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ,4

• Approved By:

Date Approved: (/(//0 97

TENNESSEE VALLEY AUTHORITY ID E44897 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/19/2010 Knoxrville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100°F Accuracy +/-0 4*F 37 deg F 65deqF 93deqF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.956 64.996 92.956 A A I S Limits Limits 9791145 S I F Sertal 0 40 deg F OBSVD 0.40 deg F OBSVD 040 deg F OBSVD S L E

'Nmb -0,40 deq F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB8 -7 ft97 1 14 5 367S 1 -0.21

__021____8r__In_15.__2_1-1--024-V 4A I -01 92.71 I -0241 ,, 3154 WB8-3ft I97911491 3680 -0.161 64.93 1 -0.061 92 1 .0.051 V 1 1 3.57 I W38-5ft 19791151 3704 0.081 6510 i011 93.05 0.091 i 3.54 WEB8- %ft 119911541 3713 0.17T 6515 1 0,151 93,05 1 0.091 -'1 1 .5 SENSOR TYPE: HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label wIll be attached.

The currernt calibration report will be in the Instrument Log.

WI3N Post Cal Summer 2010 9R

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/20/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44899 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. II Description Calibration Date ]lCalibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/1112010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12110/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOIIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except In full, without the written approval of CLS.

Calibrated By: ,Z.t,... Approved By: 4 2 Date Approved: I I Io 99

TENNESSEE VALLEY AUTHORITY ID E44899 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 1 /20/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100-F Accuracy +/-0.41F F

37 deg F 65 deqF 93 deF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.956 64.994 92.953 A A I ISensor Limits Limits Limits S I F

.Serial 0.40 deg F OBSVD 0.40 deg F OBSVD 0-40 deg F OBSVD S L E Nlumber -0.40 deg F ERROR -0.40 deg F ERROR -0.40 deg F ERROR WB11 -3ft L99 1 36-84 *0.111 64.93 -0.061 92.86 -0 ,10 4,1 I 3.54 WB10-Y1/2ft 9791170 3684 -0.1! 64.97 -0.02 92.90 -0.051 3.57 WB10 - 3 ft 9791171 37.04 0.08 65.10 0.11 93.14 0.19 - 3.57 WB10-5ft 9791172 3689 -0.07 64.97 -0.02 92.86 -0.10 v, 3.57 WB10 -7 ft _717 37 04 0.08 65.10 011 9305 1 0.09 1 3.57 WB11 -5ft 9791175- 36.89 -0.07 64.97 -0,02 9290 -0.051 1,, 3.57 WB11 -7ft 97911761 3684 -0.11 64.89 j -011 92.81 1 -0.14 / 3.57 SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a Iong period oi time and no calibration label will be attached.

The current calibration report will be in the Instrument Log.

WBN Post Cal Summer 2010.

100

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 I

Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 10/21/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44901 Manufacturer: Onset Computer Corporation Model: U22-001 CLS Instruction No.: 450.01-020 SIN No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I[I.DZNo. Description Calibration Date I Calibration Due Date 906527 Azonix Al01 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

Callbraled By. __________________ Approved By:

Date Approved: l{ (ID 101

TENNESSEE VALLEY AUTHORITY ID E44901 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 10/21/2010 Knoxville, Tennesxee 37902 Phone: (M6) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range0 to 100°F Accuracy -O.4°F 37 dea F 65 deqF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.954 64.996 92.993 A A I Sensor Limits Limits Limits S I F

.Serial 040 deg F OBSVD 040 deg F OBSVD 040 deg F OBSVD S L E

[Number -0 40 den F E:RRO Jn An f*, ,.4 c omnC , .n ,C^ n WB12 - 5ft 19791190 36.99 0.03 65.06 0.06 93.00 0.00 357 WB12-3ft 9791191 36.94 0.04 65.06 006 93.00 0.00 1 354 WB12- Y ft j9791192 36.89 -0.06 64.93 -0.061 92.86 -0.14 ,/ 3.57 WEI11 - Y2ft [9719:11;E:36:8:0: 0.161 6493 0061 92.86 -0.14 .5 SENSOR TYPE HOBO Water Temp Pro U22-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

T7he current calibration report will be in the Instrument Log.

W8N Post Cal Summer 2010.

102

APPENDIX B WBN Outfall 113 NPDES Compliance Parameters

" Current Instantaneous Upstream Temperature:

Tu i (measured at EDS Station 30 by the first sensor below a depth of 5 feet)

" Current 1-Hour Average Upstream Temperature:

Tul1 Tui + Tui- +Tui_ 2 +Tui_ 3 +Tui_ 4 5

where the subscripts i, i-i, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of Tu

• Current Instantaneous Downstream Temperature:

Tdi== Td3i + Td5i + Td7i 3

where Td3i, Td5i , and Td7i denote the current measurements of river temperature at the downstream end of the mixing zone at water depths 3 feet, 5 feet, and 7 feet, respectively

" Current 1-Hour Average Downstream Temperature:

Tdl Tdi + Tdi 1 + Tdi 2 + Tdi_ 3 + Tdi_ 4 5

where the subscripts i, i-I, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of Td

" Current Instantaneous Temperature Rise:

ATi = Tdi - Tui 103

0 Current 1-Hour Average Temperature Rise:

AT1 ATi + ATi_ 1 + AT 2 + ATi_ 3 + ATi_ 4 5

where the subscripts i, i-1, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of AT Current Temperature Rate-of-Change:

Tdi -Tdi_ 4 TROCi = Ti-d- I hour

• Current 1-Hour Average Temperature Rate-of-Change:

TROCi + TROCi_ 1 + TROCi_ 2 + TROCi_ 3 + TROCi_ 4 TROC11 =

5 where the subscripts i, i-1, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of TROC 104

Enclosure 2 Winter 2010 Compliance Survey for Watts Bar Nuclear Plant Outfall Passive Mixing Zone E2-1

TENNESSEE VALLEY AUTHORITY River Operations WINTER 2010 COMPLIANCE SURVEY FOR WATTS BAR NUCLEAR PLANT OUTFALL 113 PASSIVE MIXING ZONE Prepared by Brandi L. Ruth and Paul N. Hopping Knoxville, Tennessee August 2010

EXECUTIVE

SUMMARY

The National Pollutant Discharge Elimination System (NPDES) Permit No. TNO020168 for Watts Bar Nuclear Plant (WBN) identifies the discharge of water to the Tennessee River from the Supplemental Condenser Cooling Water (SCCW) System as Outfall 113. Furthermore, the permit identifies that when there is no flow released from Watts Bar Dam (WBH), the effluent from Outfall 113 shall be regulated based on a passive mixing zone extending in the river from bank-to-bank and 1,000 feet downstream from the outfall. Compliance with the requirements for the passive mixing zone is to be made by two annual instream temperature surveys--one for winter conditions and one for summer conditions. Summarized in this report are the measurements, analyses, and results for the passive mixing zone survey conducted for 2010 winter conditions. The survey was conducted between 23:00 CST on March 3 and 05:00 CST on March 4 (six hours) and included the collection of temperature data at twelve temporary monitoring stations deployed across the downstream edge of the passive mixing zone during a period of no flow in the river. The data were analyzed to compute three compliance parameters:

the 1-hour average temperature at the downstream edge of mixing zone, Td; the 1-hour average temperature rise from upstream to the downstream edge of the mixing zone, AT; and the 1-hour average temperature rate-of-change at the downstream edge of the mixing zone, TROC. The measured parameters were compared to predicted values from the thermal plume model used by TVA to help determine the safe operation of Outfall 113. The results of the comparisons, in terms of maximum values observed during the no flow event, are as follows:

Parameter Model Measured NPDES Limit Maximum Td 46.1 OF 43.6 0 F 86.9 0 F Maximum AT 4.4 F0 2.1 F0 5.4 F0 Maximum ITROCI 1.0 F0 /hour 1.0 F0 /hour 3.6 F°/hr As shown, values predicted by the model were equal or larger to those measured in the survey.

Thus, for the conditions of the survey, the plume model was found to be good for enforcing the operation of Outfall 113 at levels of Td, AT, and TROC without exceeding the NPDES limits.

For Td and AT, these results are consistent with those of all the previous surveys for the passive mixing zone. For TROC, however, previous surveys have revealed that the model is capable of underpredicting measured values for TROC by as much as 0.3 F0 /hour (e.g., see McCall and Hopping, 2006). Under these conditions, a factor of safety of 0.3 F°/hour is currently used in the plume model for predicting the maximum value of TROC. In this manner, the safe operation of Outfall 113 for the passive mixing zone is evaluated based on a maximum value of TROC of

+/-3.3 F°/hour rather than +/-3.6 F0/hour. This practice will continue until further notice.

i

TABLE OF CONTENTS Paue No.

EX ECU TIV E SUM MARY ............................................................................................................. i IN TRO D U CTION .......................................................................................................................... 1 IN STREA M SURV EY ............................................................................................................ 2 RESU LTS ....................................................................................................................................... 3 River Conditions ......................................................................................................................... 3 SCCW Conditions ............................................................................................................... 3 Effluent Behavior ........................................................................................................................ 3 CON CLU SION S ............................................................................................................................. 7 REFEREN CES ............................................................................................................................... 8 A PPEN D IX A ............................................................................................................................... 17 A PPEN D IX B ............................................................................................................................... 65 LIST OF FIGURES Figure 1. Watts Bar Nuclear Plant Outfall 113 (SCCW) Mixing Zones .................................. 9 Figure 2. Schematic of HOBO Water Temperature Monitoring Stations ............................... 10 Figure 3. Location of HOBO M onitoring Stations .................................................................. 10 Figure 4. River Conditions ........................................................................................................... 11 Figure 5. SCCW Conditions ................................................................................................... 12 Figure 6. HOBO Water Temperature Measurements During Survey ...................................... 13 Figure 7. Profiles of Instantaneous Compliance Temperature across Downstream End of Passive M ixing Zone .................................................................................................. 15 Figure 8. Measured and Computed Compliance Parameters for Passive Mixing Zone .......... 16 LIST OF TABLES Table 1. Tem perature Criteria for SCCW M ixing Zones .............................................................. 1 Table 2. Sources of D ata for Passive M ixing Zone Survey ...................................................... 2 ii

WINTER 2010 COMPLIANCE SURVEY FOR WATTS BAR NUCLEAR PLANT OUTFALL 113 PASSIVE MIXING ZONE INTRODUCTION Outfall 113 for the Watts Bar Nuclear Plant (WBN) includes the discharge of water to the Tennessee River from the Supplemental Condenser Cooling Water (SCCW) system. Due to the dynamic behavior of the thermal effluent in the river, the National Pollutant Discharge Elimination System (NPDES) Permit No. TN0020168 for the plant specifies two mixing zones for Outfall 113--one for active operation of the river and one for passive operation of the river (TDEC, 2004). The passive mixing zone corresponds to periods when the operation of Watts Bar Dam (WBH) produces no flow in the river (i.e., hydropower and/or spillway releases). The dimensions of the passive mixing zone extend from bank-to-bank and downstream 1,000 feet from the outfall. The active mixing zone applies to all other river flow conditions. The dimensions of the active mixing zone include the right-half of the river (facing downstream) and extend downstream 2,000 feet from the outfall. The passive and the active mixing zones are illustrated in Figure 1.

Table 1 summarizes the NPDES temperature limits for Outfall 113. The limits apply to both the active and passive mixing zones. Compliance for the active mixing zone is monitored by permanent instream water temperature stations situated in the right-half of the river. Due to navigation issues associated with placing permanent stations in the left-half of the river, a thermal plume model is used to determine the safe operation of Outfall 113 for the passive mixing zone. To verify the thermal plume model, the NPDES permit specifies that two instream temperature surveys shall be conducted each year-one for winter conditions and one for summer conditions. The purpose of this report is to present the results for the passive mixing zone temperature survey conducted for winter 2010 conditions. The survey was conducted between 23:00 CST on March 3 and 05:00 CST on March 4 (six hours) and included the deployment of temporary temperature stations at twelve locations across the downstream edge of the passive mixing zone. Data from these and other monitoring stations were analyzed to obtain measured values for the compliance parameters listed in Table 1 and to compare these with the corresponding values estimated from the SCCW thermal plume model. Summarized herein are descriptions of the survey method, results, and conclusions.

Table 1. Temperature Criteria for SCCW Mixing Zones Maximum Temperature, Downstream Edge of Mixing Zone, Td Running 1-hr 86.9 0 F Maximum Temperature Rise, Upstream to Downstream, AT Running 1-hr 5.4 F0 Maximum Temperature Rate-of-Change, TROC Running I-hr +3.7 F°/hr I

INSTREAM SURVEY The method of conducting the instream survey is the same as that used for the first such survey, performed for winter conditions on May 6, 2005 (McCall and Hopping, 2005). Table 2 provides a summary of the sources of data for the survey. The WBN Environmental Data Station (EDS) provided measurements from existing permanent monitoring stations, including the upstream (ambient) river temperature, river water surface elevation, SCCW effluent temperature, SCCW effluent flow, and air temperature. WaterView, a hydroplant monitoring system, was used to provide measurements for the discharge from WBH.

The effluent plume for Outfall 113 was monitored by deploying twelve temporary monitoring stations at roughly equal intervals across the downstream edge of the passive mixing zone. The temporary water temperature monitoring stations recorded temperature profiles using HOBO water temperature sensors positioned at depths of 0.5, 3, 5, and 7 feet below the water surface.

Shown in Figure 2 is a schematic of the temporary monitoring stations, which included an assembly containing a tire float, a string of HOBO water temperature sensors, and anchor weights. The water temperature sensors have an accuracy of about +/-0.4 F0 and resolution of about 0.04 F', which is consistent with other temperature measurements used for TVA hydrothermal compliance. The HOBO devices include an internal data acquisition unit and were programmed to collect measurements once per minute. All the temperature probes used in the survey, including both the HOBOs and the thermistors at the permanent EDS monitoring stations, were calibrated by a quality program with equipment traceable to the National Institute of Standards and Technology (NIST). The calibration procedure is summarized in Appendix A.

The temporary monitoring stations were deployed on March 3, several hours before the beginning of the survey, and were retrieved at the end of the survey. A Global Positioning System (GPS) device was used to position the stations along the downstream edge of the passive mixing zone, as shown in Figure 3.

Table 2. Sources of Data for Passive Mixing Zone Survey Data Source Frequency River discharge from Watts Bar Dam WaterView 15 min River water surface elevation WBN EDS Station 30 (Tailwater at WBH) 15 min River ambient water temperature WBN EDS Station 30 (Tailwater at WBH) 15 min SCCW effluent discharge WBN EDS Station 32 (Outfall 113) 15 min SCCW effluent temperature WBN EDS Station 32 (Outfall 113) 15 min Air temperature WBN EDS Met Tower 15 min Passive mixing zone temperatures Temporary HOBO Monitors I min 2

RESULTS River Conditions Figure 4 shows the measured ambient conditions of the river during the survey; including the discharge, water surface elevation, and temperature of the river exiting Watts Bar Dam upstream of the plant. To provide a period of no flow in the river, releases from Watts Bar Dam were suspended between about 23:00 CST on March 3 and 05:00 CST on March 4, a total of six hours (nighttime). When the releases were suspended, the river water surface elevation below WBH first dropped, but then slowly increased, due to filling from the river downstream. The ambient river temperature was about 41.6°F at the beginning of the survey, and in effect, remained steady throughout the survey.

SCCW Conditions During the survey, the SCCW system at WBN was thermally loaded and operating in "summer" mode That is, the system was operating in a manner producing the largest possible thermal load to the river. Shown in Figure 5 are the measured conditions of the SCCW system during the survey; including the discharge and temperature of the SCCW effluent. The SCCW discharge fluctuated between approximately 184 cfs and 207 cfs. The average discharge during the survey was about 195 cfs. At the beginning of the survey, the SCCW effluent temperature decreased from about 63.0°F at the beginning of the survey to about 61.8°F at the 01:00 CST. The temperature then increased throughout most of the remaining part of the survey, reaching about 64.1°F at the end of the survey. This trend coincides with the air temperature, also shown in Figure 5 (i.e., the performance of the Unit 1 cooling tower is directly related to the air temperature). Relative to the upstream river temperature, the temperature rise of the effluent exiting the SCCW system decreased from about 21.4°F at the beginning of the survey to about 20.2'F at 01:00 CST, then increased to about 22.6°F at the end of the survey.

Effluent Behavior Individual TemperatureStations Shown in Figure 6 are the readings from the HOBO temperature stations at the downstream end of the passive mixing zone. The stations are labeled consecutively from WB1 to WB12, with WB 1 situated near the left shoreline of the river and WB 12 situated near the right shoreline of the river (i.e., facing downstream-see Figure 3). The following behaviors are noted:

The temperatures for WB 1 through WB7, located in the left-hand part of the river, were fairly steady for about the first 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> of the survey, at all the compliance depths of 0.5, 3, 5, and 7 feet. In the following 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />, the temperatures for these stations increased by about 4.5 0 F at the 0.5-foot depth and about 2'F at the 7-foot depth. This likely corresponds to the 3

leading edge of the effluent plume from Outfall 113 as it migrated across the river during the period of no flow. That is, for this event, it took about 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> for the warmest part of the effluent plume to spread across to the left-hand-side of the river and to the downstream edge of the passive mixing zone. A temperature increase of only about 2'F at the 7-foot depth demonstrates that for the prevailing conditions of the river and WBN, most of the thermal effluent from Outfall 113 resides in the surface layer of the water column (i.e., the mid and bottom layers of the river are protected).

• At the beginning of the period of no flow, the temperatures for WB I1and WB12 were higher than those for WB1 through WB7. This is because prior to and at the beginning of the period of no flow, the effluent plume from Outfall 113 resided in the extreme right-hand-side of the river where these stations were located. Afterwards, the temperatures for WB 11 and WB 12 cooled as the effluent plume shifted towards and filled the left-hand-side of the river. But at the end of the survey, the temperature at these stations increased as the thermal front created by plume filling in the left-hand-side of the river finally began to build to the right-hand-side of the river.

• The temperatures for WB8 through WB10 exhibited an increase in temperature within the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of the period of no flow, followed by a decrease in temperature, particularly at the 0.5 and 3 feet depths. This is due to the transport of effluent plume across the mixing zone from the right-hand-side to the left-hand-side of the river. Later, in the sixth and final hour of the period of no flow, the temperatures for these stations again increased as the thermal effluent began to build back across the river from the left-hand-side to the right-hand-side.

" At the end of the survey, the effluent from Outfall 113 was well distributed across the river, with most of the effluent residing in the surface layer of the water column at temperatures between 44'F and 46'F. At a depth of 7 feet and below, the maximum temperature is in the neighborhood of 43°F, only about 1.5'F above the ambient river temperature.

DistributionAcross The Mixing Zone At each HOBO station, the instantaneous compliance temperature was determined by averaging the measurements for the sensors at the 3-foot, 5-foot, and 7-foot depths. Plotted in Figure 7 are the resulting temperatures across the downstream end of the passive mixing zone, measured at the top of each hour from 23:00 CST on March 3 to 05:00 CST on March 4. The following behaviors are noted:

• At the beginning of the survey (23:00 CST of March 3), most of the effluent plume from Outfall 113 resided in the right-hand-side of the river, between WB 11 and WB 12. This is 4

noted by the higher water temperatures in this area. As the survey progressed, the water temperature for these stations slowly decreased as the thermal effluent shifted towards the left-hand-side of the river.

• In contrast, for the first 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> of the survey (until about 02:00 CST of March 3), there was very little change in water temperature in the left-hand-side of the river, between WB 1 and WB7. After 02:00 CST, the water temperatures in this area increased as the effluent plume spread into the left-hand-side of the river at the downstream edge of the passive mixing zone.

Between 02:00 CST and 05:00 CST, water temperatures in this area increased as much as 3 F'. By 05:00 CST, the effluent plume had spread back across to the right-hand-side of the river, reaching WB 12.

ComplianceParameters Since heat from the outfall is distributed across the full width of the river, data from all of the HOBO stations were used to compute the NPDES compliance parameters, which is consistent with the dimensions of the passive mixing zone (e.g., as shown in Figure 1). The compliance parameters examined include those given in Table 1-the temperature at the downstream edge of mixing zone, Td; the temperature rise from upstream to the downstream edge of the mixing zone, AT; and the temperature rate-of-change at the downstream edge of the mixing zone, TROC. The fundamental equations used to compute the compliance parameters are provided in Appendix B, based on the criteria specified in the NPDES permit. The temperature at the downstream end of the mixing zone was determined from the HOBO measurements (i.e., average of sensors at depths 3, 5, and 7 feet for all twelve HOBO stations). The temperature rise was computed as the difference between the temperature at the downstream end of the mixing zone and the upstream temperature measured at Station 30. The temperature rate-of-change was determined by the change in the temperature at the downstream end of the mixing zone from one hour to the next.

The data were averaged over a period of one hour using 15-minute readings, as specified in the NPDES permit, and compared with the WBN thermal plume model. The results are presented in Figure 8, along with the results obtained by the thermal plume model. The following comments are provided.

5

Temperature at the downstream edge of the passive mixing zone, Td: The maximum 1-hour average Td estimated by the thermal plume model was 46.1°F, whereas the maximum measured value was about 43.6 0 F. Thus, the model overpredicted the maximum measured Td by 2.5'F. Compared to the measurements, the increase in river temperature due to the no flow event was predicted to occur much more rapidly by the model. This is because the model assumes that impacts due to changes in the river and/or Outfall 113 are fully realized within one hour (i.e., the model time-step); whereas in reality, the actual time for the development of such impacts is much longer, at least for events with little or no river flow.

Both the predictions from the model and measurements from the survey were well below the NPDES limit of 86.9°F.

Temperature rise, AT: The maximum 1-hour average AT predicted by the plume model was 4.4 F0 , whereas the maximum measured value was about 2.1 F0 . Thus, the model overpredicted the maximum measured temperature rise by 2.3 F0 . For the reason cited above (i.e., computational time-step of one hour), the model predicted the temperature rise to occur sooner than that found by the measurements. Both the predictions from the model and measurements from the survey were well below the NPDES limit of 5.4 F0 .

Temperature rate-of-change, TROC: The maximum 1-hour average TROC predicted by the plume model was 1.0 F0 /hour, whereas the maximum measured value was about 1.0 F°/hour (absolute values). Thus, the model predicted the actual value of the temperature rate-of-change. Both the predictions from the model and measurements from the survey were well below the NPDES limit of +3.6°F.

6

CONCLUSIONS The survey for 2010 winter conditions was successful in measuring the NPDES water temperature parameters for the Outfall 113 passive mixing zone. The measurements were compared with values predicted by the thermal plume model that currently is used to determine the safe operation of the SCCW system. Overall, for the conditions of the 2010 winter survey, the model was found to be good in estimating the impact of Outfall 113 on the temperature, Td, temperature rise, AT, and temperature rate-of-change, TROC, at the downstream end of the passive mixing zone. This is because the model overpredicted the maximum value measured for Td and AT and predicted the maximum value measured for TROC. Therefore, Outfall 113 can operate at levels of Td, AT, and TROC without exceeding the NPDES limits. For Td and AT, these results are consistent with those for all of the previous surveys for the passive mixing zone.

The same is not true, however, for TROC. Previous surveys have revealed that the model is capable of underpredicting measured values for TROC by as much as 0.3 F°/hour (e.g., see McCall and Hopping, 2006). Under these conditions, and despite the results summarized herein, a factor of safety of 0.3 F°/hour is used in the plume model for predicting the maximum value of TROC. That is, the safe operation of Outfall 113 for the passive mixing zone will continue to be evaluated based on a maximum value of TROC of +/-3.3 F°/hour rather than +/-3.6 F°/hour. In general, this action will have only a very slight impact on the SCCW, since the operation of the SCCW tends to be controlled primarily by the NPDES limit for AT, not the limit for TROC.

7

REFERENCES McCall, Michael J., and P.N. Hopping, "Summer 2005 Compliance Survey for Watts Bar Nuclear Plant Outfall 113 Passive Mixing Zone," TVA River Operations, Report No. WR2006-2-85-152, February 2006.

McCall, Michael J., and P.N. Hopping, "Winter 2005 Compliance Survey for Watts Bar Nuclear Plant Outfall 113 Passive Mixing Zone," TVA River Operations, Report No. WR2005-2-85-151, October 2005.

TDEC, State of Tennessee NPDES Permit No. TNO020168, Tennessee Department of Environment and Conservation, November 2004.

8

Figure 1. Watts Bar Nuclear Plant Outfall 113 (SCCW) Mixing Zones 9

Water Surface M er Eeacon

-N'-- Tire Flost HOBO Temperature Sensors (see detail be"w) all Ancono I

-- Anchor Channel Bottom (Not to Scale)

HOEO Temperature Sensor Detal Figure 2. Schematic of HOBO Water Temperature Monitoring Stations Figure 3. Location of HOBO Monitoring Stations 10

25 20 U

8 o 15 0

0

" 10 a

i, 5 68 0

2 1:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 680 Survey Period 679 14

• 678 0

u 677 S676 675 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 44 E

I-42 E

w 41 Z;

40 -

21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 Mar 3, 2010O-+ Mar 4, 2010 (CST)

Figure 4. River Conditions 11

300 250 200 0

. - 150 U

'A S100 0

0 65 60 50 45 E 40 35 30 25 24020 20 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 30 25 30 0

21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 Mar23,0201 0 Mr4,210 (CST)

Figure 5. SCCW Conditions 12

47 46 45 1 44

& 43 E

. 42 41 40 39 lotdph.7fote 47 46 45 o 44 is43 42 no S41Ufot05foc 47 46 45

• 44 E

S42 41 40 39 23 000 00 200 300 400 500 2300 000 100 200 3ý00 4 00 500 M ..

o3,2010 M.a4, 2010 (CST) Mr3.2010 4* Mar4, 2010 (CST)

Figure 6. HOBO Water Temperature Measurements During Survey 13

47 46 i IaBI 45 IA.

,o44 0643 E

42 41 40 39 474 46  ::::: 1 WB I la WW 45 E 44 47 42 &A 46 W 41 05todph05fo et 45 43 40 55 39 40 0 40O0 500 23,O0 MarS, 2010 4.1*

000 100 2:00 Mar4, 2010 (CST) 30O0 40O0 50O0 23000 00O0 MarS, 2010 4.jP 200 Mar4, 2010 (CST) 3:00 Figure 6 (Continued). HOBO Water Temperature Measurements During Survey 14

50 49 48 47

" 46 0 45 E

I-44 43 42 41 40 WB1 WB2 WB3 WB4 WB5 WB6 WB7 WB8 WB9 WB1O WB11 WB12 HOBO Monitoring Station (left bank to right bank, facing downstream)

Figure 7. Profiles of Instantaneous Compliance Temperature across Downstream End of Passive Mixing Zone (Average of Readings at 3-Foot, 5-Foot, and 7-Foot Depths) 15

Downstream Temperature, Td 90 80 0 E 70 00

. 50 40 Temperature Rise, AT 6

U-

• 5 2 4 E 3

)2 0

Temperature Rate-of-Change, TROC 4

3 16 2 M 0 z* -2

-3

-4 23:00 0:00 1:00 2:00 3:00 4:00 5:00 Mar 3, 2010 4

• Mar 4, 2010 (CST)

Figure 8. Measured and Computed Compliance Parameters for Passive Mixing Zone 16

APPENDIX A (The following information is provided per request of Mike Kelly of TDEC on August 26, 2008)

All sensors used by TVA for monitoring compliance of NPDES water temperature requirements are certified and maintained to meet the following industry and regulatory standards:

" ISO/IEC 17025--Quality assurance requirements for the competence to carry out sampling, testing, and calibrations using standard, non-standard, and laboratory-developed methods (ISO=International Organization for Standardization, IEC=International Electrotechnical Commission).

" 10CFR50 Appendix B-Quality assurance criteria for design, fabrication, construction, and testing of the structures, systems, and components of nuclear power plants (CFR=Code of Federal Regulations).

" 40CFR136-Guidelines establishing test procedures for the analysis of pollutants under the Clean Water Act.

" ANSI N45.2. 1971--Quality assurance requirements for Nuclear Power Plants (ANSI=

American National Standards Institute).

" ANSI/NCSL Z540-1-1994--General requirements for calibration laboratories and equipment used for measurements and testing (NCSL=National Conference of Standards Laboratories).

The standard used to certify the thermistors for the permanent EDS stations and the temporary HOBO stations is traceable to the National Institute of Standards and Technology (NIST). The standard includes two pieces of equipment-a platinum resistance temperature detector (RTD) manufactured by Burns Engineering, Inc. and an ohmmeter manufactured by Azonix Inc. The latter is used to measure the resistance of the RTD (i.e., the resistance of platinum varies with temperature). The NTIS traceable calibration certificates for the Burns RTDs and the Azonix ohmmeter that were used to calibrate the HOBO probes are provided below. The end result of the RTD calibration is a set of International Temperature Scale 1990 (ITS 90) coefficients that are used to compute water temperature from the measured RTD resistance. Based on the calibration certificates, the accuracy of the system for the temperature standard is about +/-0.05°F.

The tolerance of the thermistors used for the WBN field survey is about +/-0.4°F, thus providing a calibration test accuracy ratio (TAR) of about 1:8. That is, the accuracy of temperature standard used for the sensor calibrations is 8 times greater than the minimum acceptable field accuracy of temperature sensors. This is twice the recommended maximum TAR of 1:4 for sensor calibrations.

17

The TVA procedure to calibrate the HOBO water temperature probes, Instruction No. 450.01-020, is provided below. Briefly, the HOBO probes are immersed in a stirred temperature-controlled water bath along with the standard (i.e., along with the Bums RTD probe). After the bath stabilizes, temperature readings from the HOBO probes are compared to the temperature readings from the standard. Experience has shown that in nearly all cases, the readings from both the HOBO probes and the standard and are essentially constant, so that the 95 percent confidence interval of the readings is diminutive. Under these conditions, the accuracy of each HOBO probe is recorded simply as the difference between the HOBO reading and that of the standard (negative difference = HOBO reading low/below standard, positive difference = HOBO reading high/above standard). The HOBO probes are tested at three temperatures between 30'F and 100°F, covering the range of expected water temperature for natural river conditions.

Specifically, the three temperatures are at about the 10 percent, 50 percent, and 90 percent intervals, or 37'F, 65'F and 93'F, respectively. Any HOBO probe with measured accuracy (i.e.,

difference) in excess of the maximum allowable tolerance of +/-0.4'F for any one temperature fails the calibration test and is removed from the field survey inventory. In general, based on TVA experience, most HOBO probes that pass the calibration test usually have measured accuracies better than about +0.25°F for all three temperatures examined in the bath tests. The calibration certificates for HOBO probes used in field survey summarized herein are provided below. Included are certificates for both the pre- and post-survey calibration tests. A close examination of the certificates shows that all the HOBO probes passed the calibration test both before and after the field survey.

18

Calibration Certificates for Burns Platinum Resistance Thermometer (RTD)

RTD with ID No. 906535 was used for both pre-survey and post-survey calibrations.

19

. I REPORT of CALIBRATION Asset ID: 906535 Certificate No: 17538 Page 1 of 6 Tennessee Valley Authority Central Laboratories Services

,lailing Addrms: 110t Market Street. PSC-I R-C. C'hattannooga.TN 37402 Shipping Addres: 4601 North Aecess Rand, Id5 . A, Chattanoo'a, rN 37415 1'h1mc: 423) 876-4318 Fax: (423)t8"76-4137 IIII111 GIllIII I11 III III II Customer: QA RECORD CLS KNOXVILLE 400 W. SUMMIT HILL DR.

KNOXVILLE, TN 37902 Instrument Information: Calibration Information:

I)escription: RTD Cal Dlate: 12/1012009 Manufacturer: BURNS Due Date: 12/1012010 Mod h,1: 3925 Interval: 12 Months Serial Number: Cal Instruction: 307.04-004 As Found: Out of Tolerance As Left: In Tolerance - Adjusted AS FOUND OUT OF TOLERANCE Ambient Temperature: 72*F +/- 9*F Ambient Humidity: <=80% RH This is to certify that all instrumentation. testing methods and personnel used comply with the requirements of the Central Laporatories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025. IOCFR50 Appendix B, ANSI N45.2-1971. and ANSI/NCSL Z540-1-1994. Standards used are Iraceable to the National Institute of Standards and Technology (NIST),

officially recognized agencies. commercially accepted practices or natural physical constants. This report shall not be reproduced, except in full. without the wrilten approval of CLS.

Technierl Itemxrks:

Standards Utilized TVAI.D. Mfg. Model No. Description Cal. Date Due Date 891602 ASL F17 TEMPERATURE MEASURING SYSTEM 08I2812009 08/28f2010 160 TINSLEY 5685-A STANDARD RESISTOR.25 Ohms 1210912009 0610912010

¢05463 GUILDLINE 9330 STANDARD RESISTOR 12,07/2009 12107/2010

,05643 ISOTECH MERCURY CELL FIXED POINT CELL 1210812009 12/0812014 509644 HART SCIENTIFIC WATER TRIPLE CELL TRIPLE POINT BATH& CELL 12/08/2009 1210812014 90g645- ISOTECH GALLIUMCELL FIXED POINT CELL 1215502009 12/08,2014 906646 ISOTECH TINCELL FIXED POINT CELL 12/0892009 121D8/2014 906647 ISOTECH ZINCCELL FIXEDPOINT CELL 12108/2009 1210912014 h

'alnited by: David R. Bird Sam Bertram 12/1512009 Sr Metroloxv Tech Calibration Supv. Date Approved By:

This report was electronically approved using Edison Mudcats Metrology Suite Ver. 2.2.1.

20

21

. - -e. ýv8 - W~t CENTRAL LABORATORIES SERVICES Cust. I.D. No.: 906535 CHATTANOOGA. TENNESSEE Page No.: 2 of 6 CALIBRATION REPORT Date of Report: 12/10/09 Remarks: Accuracy +1-0.02 Degrees C.

Recalculated coefficients prior to As Left test to bring within tolerance.

For As Left data and coefficients refer to page 3 of 6.

AS FOUND TEST UUT STD ERROR

°C cC oc

-38.8536 -38.8344 0.0192 0.01000 0.0100 0.0000 29.7362 29.7646 0.0284 'Failed 231.9149 231.9280 0.0131 419.4449 419.5270 0.0821 'Failed As Found ITS 90 Coefficients Rtpw 100.032105 a5 -4.15854650E-04 b5 -1.55621388E-04 a8 -2.72593907E-04 b8 -2.28004426E-04 Test current ImA 22

23 Report for ITS-90 Coefficients Model: 3925 Serial: TVA 906535 Date: December 03,2009 TPW:

Reference ('C) UUT (Ohms) Residual (°C) 0.0100 100.0317 N/A Low Range:

Reference (°C) UUT (Ohms) Residual (°(')

-38.8344 84.4397 0.0026 29.7646 111.8350 -0.0008 High Range:

Reference (*C') UUT (Ohms) Residual (0 C) 231.9280 189.2937 0.0001 419.5270 256.8467 0.0000 Coefficients:

RTPW = 100.0317(11 Low Range:

a5 = -6.566477 10 E-04 b5 =-4.73559772 E-03 High Range:

a8 = -1.32503333 E-04 hS=-4.29922201 E-04 Page 3 of"6 906535 24

Model: 3925 Serial: TVA 906535 ITS-90 Temperature vs. Resistance Table 0

C Resistance dr/dT °C Resistance drldT °C Ftesistance drldT

-39.00 84.371755 0.4041701 20.00 107.98165 0.3964075 79.00 131.16111 0.3892309

-38.00 84.775925 0.4040197 21.00 108.37805 0.3962850 80.00 131.55034 0.3891100

-37.00 85.179945 0.4038700 22.00 108.77434 0.3961626 81.00 131.93945 0.3889891

-36.00 85.583815 0.4037209 23.00 109.17050 0.3960401 82.Ob 132.32844 0.3888683

-35.00 85.987536 0.4035724 24.00 109.56654 0.3959178 83.00 132.71731 0.3887474

-34.00 86.391108 0.4034245 25.00 109.96246 0.3957954 84.00 133.10605 0.3886266

-33.00 86.794533 0.4032772 26.00 110.35826 0.3956731 85.00 133.49468 0.3885058

-32.00 87.197810 0.4031305 27.00 110.75393 0.3955508 86.00 133.88319 0.3883851

-31.00 87.600940 0.4029843 28.00 111.14948 0.3054285 87.00 134.27157 0.3882643

-30.00 88.003925 0.4028387 29.00 111.54491 0.3953063 88.00 134.65984 0.3881436

-29.00 88.406764 0.4026937 30.00 111.94021 0.3951841 89.00 135.04798 0.3880229

-28.00 88.809457 0.4025492 31.00 112.33540 0.3950620 90.00 135.43600 0.3879022

-27.00 89.212006 0.4024052 32.00 112.73046 0.3949399 91.00 135.82391 0.3877816

-26.00 89.614412 0.4022617 33.00 113.12540 0.3948178 92.00 136.21169 0.3876609

-25.00 90.016673 0.4021187 34.00 113.52022 0.3946957 93.00 136.59935 0.3875403

-24.00 90.418792 0.4019762 35.00 113.91491 0.3945737 94.00 136.98689 0.3874197

-23.00 90.820768 0.4018341 36.00 114.30949 0.3944517 95.00 137.37431 0.3872992

-22.00 91.222602 0.4016925 37.00 114.70394 0.3943297 96.00 137.76161 0.3871786

-21.00 91 *24295 0.4015513 38.00 115.09827 0.3942078 97.00 138.14879 0.3870581

-20.00 92.025846 0.4014105 39.00 115.49248 0.3940859 98.00 138.53584 0.3869376

-19.00 92.427257 0.4012701 40.00 115.88656 0.3939640 99.00 138.92278 0.3868171

-18.00 92.828527 0.4011301 41.00 116.28053 0.3938422 100.00 139.30960 0.3866966

-17.00 93.229657 0.4009904 42.00 116.67437 0.3937204 101.00 139.69630 0.3865762

-16.00 93.630647 0.4008511 43.00 117.06809 0.3935986 102.00 140.08287 0.3864558

-15.00 94.031498 0.4007121 44.00 117.46169 0.3934768 103.00 140.46933 0.3863354

-14.00 94.432210 0.4005734 45.00 117.85516 0.3933551 104.00 140.85566 0.3862150

-13.00 94.832784 0.4004350 46.00 118.24852 0.3932334 105.00 141.24188 0.3860946

-12.00 95.233219 0.4002969 47.00 118.64175 0.3931117 106.00 141.62797 0.3859743

-11.00 95.633516 0.4001589 48.00 119.03486 0.3929900 107.00 142.01395 0.3858540

-10.00 96.033675 0.4000212 49.00 119.42785 0.3928684 108.00 142.39980 0.3857337

-9.00 96.433696 0.3998837 50.00 119.82072 0.3927468 109.00 142.78553 0.3856134

-8.00 96.833579 0.3997464 51.00 120.21347 0.3926252 110.00 143.17115 0.3854931

-7.00 97.233326 0.3996091 52.00 120.60609 0.3925037 111.00 143.55664 0.3853729

-6.00 97.632935 0.3994720 53.00 120.99860 0.3923821 112.00 143.94201 0.3852527

-5.00 98.032407 0.3993350 54.00 121.39098 0.3922606 113.00 144.32727 0.3851325

-4.00 98.431742 0.3991981 55.00 121.78324 0.3921392 114.00 144.71240 0.3850124

-3.00 98.830940 0.3990612 56.00 122.17538 0.3920177 115.00 145.09741 0.3848922

-2.00 99.230001 0.3989242 57.00 122.56740 0.3918963 116.00 145.48230 0.3847721

-1.00 99.628926 0.3987873 58.00 122.95929 0.3917749 117.00 145.86708 0.3846520 0.00 100.02771 0.3988660 59.00 123.35107 0.3916535 118.00 146.25173 0.3845319 1.00 100.42658 0.3987426 60.00 123.74272 0.3915322 119.00 146.63626 0.3844118 2.00 100.82532 0.3986193 61.00 124.13425 0.3914108 120.00 147.02067 0.3842918 3.00 101.22394 0.3984961 62.00 124.52567 0.3912895 121.00 147.40496 0.3841718 4.00 101.62244 0.3983729 63.00 124.91696 0.3911682 122.00 147.78913 0.3840518 5.00 102.02081 0.3982497 64.00 125.30812 0.3910470 123.00 148.17319 0.3839318 6.00 102.41906 0.3981266 65.00 125.69917 0.3909258 124.00 148.55712 0.3838119 7.00 102.81718 0.3980035 66.00 126.09010 0.3908045 125.00 148.94093 0.3836919 8.00 103.21519 0.3978805 67.00 126.48090 0.3906834 126.00 149.32462 0.3835720 9.00 103.61307 0.3977575 68.00 126.87158 0.3905622 127.00 149.70819 0.3834522 10.00 104.01083 0.3976346 69.00 127.26215 0.3904410 128.00 150.09165 0.3833323 11.00 104.4084.6 0.3975117 70.00 . 127.65259 0.3903199 129.00 150.47498 0.3832125 12.00

• 104.80597 0.3973889 ;1.00 -128.04291 0.3901988 130.00 150.85819 0.3830926 13.00 105.20336 ' 0.3972660 72.00 128.43311 0.3900778 131.00 151.24128 0.3829728 14.00 105.60063 0.3971433 73.00 128.82318 0.3899567 132.00 151.62426 0.3828531 15.00 105.99777 0.3970206 74.00 129.21314 0.3898357 133.00 152.00711 0.3827333 16.00 106.39479 0.3968979 75.00 129.60298 0.3897147 134.00 152.38984 0.3826136 17.00 106.79169 0.3967752 76.00 129.99269 0.3895937 135.00 152.77246 0.3824939 18.00 107.18846 0.3966526 77.00 130.38228 0.3894727 136.00 153.15495 0.3823742 19.00 107.58512 0.3965300 78.00 130.77176 0.3893518 137.00 153.53732 0.3822545 25

26 Model: 3925 Serial: TVA 906535 Mode:325Sria:

Temperature TV90535ITS-90 vs. Resistance Table

.C Resistance drldT oC Resistance drldT .C Resistance drldT 138.00 153.91958 0.382 1349 197.00 176.26160 0.3751159 256.00 198.19 174 0.368 1726 139.00 154.30171 0.3820152 198.00 176.63671 0,3749976 257.00 198.55991 0.3680555 140.00 154.68373 0 .38 18957 199.00 177.01171 0,3748793 258.00 198.92797 0.3679384 141.00 155.06562 0.3817761 200.00 177.38659 0.3747611 259.bO 199.29590 0.3678213 142.00 155.44740 0.3816565 201.00 177.76135 0.3746429 260.00 199.66373 0 .3677042 143.00 155.82906 0.38 15370 202.00 178.13599 0 .374 524 7 261.00 200.03 143 0.3675871 144.00 156.21059 0 .38 141 75 203.00 178.51052 0.3744065 262.00 200.39902 0.3674701 145.00 156.59201 0.3812980 204.00 178.88493 0.3742884 263.00 200 .76649 0.367353 1 146.00 156.97331 0. 38 11785 205.00 179.25921 0.3741702 264.00 20 1.13384 0.367236 1 147.00 157.35449 0.3810591 206.00 179.63338 0.374052 1 265.00 201.50108 0. 367 119 1 148.00 157 73555 0.3809397 207.00 180.00744 0.3739340 266.00 201.86820 0.3670021 149.00 158.11649 0.3808203 208.00 18038137 0.3738 160 267.00 202.23520 0. 366885 1 150.00 15849731 0 .3807009 209.00 180.75519 0.3736979 268.00 202.60208 0.366768 1 151.00 158.87801 0.3805815 210.00 181.12888 0.3735799 269.00 202 .968 85 0.3666512 152.00 159.25859 0 .3804622 211.00 181.50246 0.3734619 270.00 203.33 550 0.3665343 153.00 159.63905 0.3803429 212.00 181.87593 0.3733439 271.00 203.70204 0.3664 174 154.00 160.01939 0. 3802236 213.00 182.24927 0.3732259 272.00 204.06845 0.3663005 155.00 160.39962 0.3801044 214.00 182.62250 0.3731080 273.00 204.43475 0.366 1836 156.00 160.77972 0.3799851 215.00 182.99560 0.3729901 274.00 204.80094 0.3660667 157.00 161'.15971 0.3798659 216.00 183.36859 0.3728722 275.00 205,16700 0.3659498 158.00 161.53957 0.3797467 217.00 183.74147 0. 372 7543 276.00 205.53295 0.3658330 159.00 161.91932 0.3796275 218.00 184.11422 0.3726365 277.00 205.89879 0.3657 161 160.00 162.29895 0.3795084 219.00 184.48686 0.3725186 278.00 206.26450 0.3655993 161.00 162.67846 0.3793893 220.00 184.85938 0.3724008 279.00 206.63010 0.3654825 162.00 163.05785 0.3792702 221.00 185.23178 0.3722830 280.00 206.99559 0.3653657 163.00 163.43712 0 .379 15 11 222.00 185.60406 0.372 1653 281.00 207.36095 0 .3652489 164.00 163.81627 0.3790320 223.00 185.97622 0.3720475 282.00 207.72620 0 .365132 1 165.00 164.19530 0.3789130 224.00 186.34827 0.37 19298 283.00 208.09133 0.3650154 166.00 164.57421 0.3787940 225.00 186.72020 0.37 18121 284.00 20B.45635 0.3648986 167.00 164.95301 0 .3786750 226.00 187.09201 0.37 16944 285.00 208.82125 0.36478 19 168.00 165.33168 0.3785560 227.00 187.46371 0.3715767 286.00 209.18603 0.3646651 169.00 165.71024 0.378437 1 228.00 187.83529 0.3714591 287.00 209.55069 0.3645484 170.00 166.08867 0.3783 182 229.00 188.20674 0.3713415 288.00 209.9 1524 0.3644317 171.00 166.46699 0.3781993 230.00 188.57809 0.3712238 289.00 210.27967 0.3643150 172.00 166.84519 0. 3780804 231.00 188.94931 0.3711063 290.00 210.64399 0. 364 1983 173.00 167.22327 0 .37 796 15 232.00 189.32042 0.3709887 291.00 211.00819 0 .36408 16 174.00 167.60123 0.3778427 233.00 189.69140 0.3708711 292.00 211.37227 0.3639649 175.00 167.97908 0.3777239 234.00 190.06228 0.3707536 293.00 211.73623 0.3638483 176.00 168.35680 0.3776051 235.00 190.43303 0 .370636 1 294.00 212 .10008 0 .36373 16 177.00 168.73440 0.3 774863 236.00 190.80367 0.3705186 295.00 212 .4 638 1 0.3636 150 178.00 169.11189 0 3773676 237.00 191.17418 0.3704011 296.00 2 12.82743 0.3634983 179.00 169.48926 0.3772489 238.00 191.54459 0.3702837 297.00 213. 19093 0 .36338 17 180.00 169.86651 0.377 1302 239.00 191.91487 0 .370 1662 298.00 213.55431 0.3632651 181.00 170.24364 0. 3770115 240.00 192.28503 0.3700488 299.00 213 .9 1757 0.3631484 182.00 170.62065 0.3768929 241.00 192.65508 0.36993 14 300.00 214.28072 0.3630318 183.00 170.99754 0.3767743 242.00 193.02502 0. 3698 14 1 301.00 214 .64375 0.3629152 184.00 171.37432 0.3766557 243.00 193.39483 0.3696967 302.00 2 15.00667 0.3627986 185.00 171.75097 0.376537 1 244.00 193.76453 0.3695793 303.00 2 15.36947 0.3626820 186.00 172.12751 0.3764185 245.00 194.13411 0.3694620 304.00 215.73215 0.3625655 187.00 172.50393 0.3763000 246.00 194.50357 0 .3693447 305.00 216 .094 71 0.3624489 188.00 172.88023 0.37.6p181 5 247.00 194.87291 0.3692274 306.00 216 .457 16 0 .3623323 189.00 173.25641. 0.3760630 248.00 195.24214 0.3691102 307.00 216.819 50 0.3622157 190.00 173.63247 0.3759445 249.00 195.61125 0.3689929 308.00 217.18 171 a1.3620992-191 .00 174.00842 0.37 58261 250.00 195.98024 0 .3688757 309.00 217. 5438B1 0.3619826 192.00 174.38424 0 .37 57077 251.00 196.34912 0.3687584 310.00 217 .90579 0.3618661 193.00 174.75995 0.3 755893 252.00 196.71788 0.3686412 311.00 218.26766 0.3617495 194.00 175.13554 0 3754709 253.00 197.08652 0.3685241 312.00 218.6294 1 0.3616330 195.00 175.51101 0. 3753525 254.00 197.45504 0.3684069 313.00 2 18.99104 0.3615164 196.00 175.88636 0 .3752342 255.00 197.82345 0.3682897 314.00 2 19.35256 0.3613999 Page 5 of 6 Date: December 03.2009 27

Calibration Certificate for Azonix Ohmmeter Instrument used to read resistance of Bums RTD thermometers.

28

Asset ID: 906527 REPORT of CALIBRATION Certificate No: 18904 Page 1 of 2 Tennessee Valley Authority Central Laboratories Services

%IMAiling Address: I 1ll ,Market $I reet, PSC-I a-C. Chhattanooga. I'N 37402 Shipping Address: 4601 North Access Road. Bldg. A. Chattanooga. TN 37415 11111 1111111l lllllllH IIII Phone: (423) N76-4318 Fas: (423) M76-4137 Customer: QA RECORD CLS KNOXVILLE 400 W. SUMMIT HILL DR.

KNOXVILLE, TN 37902 Instrument Information: Calibration Information:

Description:

DIGITAL THERMOMETER Cal Date: 0111112010

,Manufacturer: AZONIX Due Date: 01/11/2011 Model: A1011-RS-AO-RT41 Interval: 12 Months Serial Number: Cal Instruclion: 308.02-003 As Found: In Tolerance As Left: In Tolerance Ambient Temperature: 721F +/- 21F Ambient Humidity: -50% RH This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025. 10CFRSOAppendix B, ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST),

officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced, except in full, without the written approval of CLS.

'lrchniC2al Remarks:

Standards Utilized TVA I.D. Mfg. Model No. Description Cal. Date Due Date 259304 HONEYWELL 1190 RESISTANCE STANDARD,1 OHM 05/25/2005 05/25t2010 906374 ERTCO ASTM 17F GLASS THERMOMETER 12/08/2009 1210812010 E29099 GUILDLINE 6675A DC RESISTANCE BRIDGE 1111012009 11110r2010 Calibrated by: Matthew R. Snyder Approved By: Sam Bertram 01112/2010 Sr Metroloov Tech Calibration Supv Date This report -ias electronically approved using Edison Mud'cats Metrology Suite Ver. 2.2.1.

29

Tennessee Valley Authority CENTRAL LABORATORIES SERVICES Cust. I. D.No.: 906527 CHATT-ANOOGA, TENNESSEE Pg o:2o CALIBRATION REPORT Date of Report: 1/111/10 Remarks: Accuracy = 0.004 Ohms Certification is limited to channels 1 and 2; channels 3 and 4 are not certified.

Limited certification label is attached.

Left as found.

• Denotes out of tolerance.

AS FOUND Standard Resistance UUT Reading Probe (Ohms) (Ohms) Error (Ohms) 1 89.9999 90.001 0.001 100.0000 100.001 0.001 119.9999 120.002 0.002 2 89.9999 90.001 0.001 100.0000 100.001 0.001 F 119.9999 120,000 0.000 30

31 TVA Procedure for Calibration of HOBO Water Temperature Probes 32

TITLE Instruction No. 450.01-020 Rev. No. 0 Page No. 1 of 7 CENTRAL Certification of HOBO Water Temp Pro Data LABORATORIES Acquisition SystemsH20-001 SERVICES QUALITY PROGRAM INSTRUCTION Effectve Date 5/19/03 LEVEL OF USE El Continuous [ Reference El Information QA RECORD Dennis T. Darby 5/19/03 Preparer Date Paul B. Loiseau, Jr. 5/19/03 Technical Reviewer Date Admiinistrative R~~ew* 0 to APPROVAL Jerry D. Hubble 5/19/03 Department Manager Date 33

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-001 Rev. 0 Eft. Date 5119103 Page 2 of 7 REVISION LOG Revision Effective Pages Number Date Affected Description of Revision 0 5-19103 All Initial Issue.

I II I 4 4 4-i 4 4-4 4 .4-4 4 .4.

4 4 4-4 4 i 4 4 .4-4 4 4-4 4 4.

4 4 .4-4 4 4-4 4 +

4 4 .4-4 4 4-4 4 +

4 4 +

4 4 .4-34

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-O01 Rev. 0 Eft. Date 5&19103 Page 3 of 7 1.0 PURPOSE To provide uniform and effective certifications of Hobo Water Temp Pro data acquisition systems meeting the accuracy and perfomance requirements of TVA's water temperature-monitoring programs. This technical instruction uses the method of comparison with a laboratory standard thermometer.

2.0 SCOPE This instruction applies to the certification of Hobo Water Temp Pro data loggers manufactured by Onset Computer Corporation of Boume, Massachusetts. The Hobo Water Temp Pro is a data acquisition system containing a temperature sensor, data logger and battery sealed in a single submersible case. The Hobo Water Temp Pro is programmed and data retrieved by use of an infrared interface located in one end of the case. Hobo Water Temp Pros are certified upon receipt from the manufacturer at no greater than 12 month intervals during use or when requested.

3.0

SUMMARY

In this three-point certification systems are tested as actually used over the historical water temperature range of 30' to 100'F and submerged in water. The three test points are 37', 65' and 93cF. The systems are required to perform within Onset Computer Corporation tolerances. System conformity at each temperature point is determined by comparing system temperature, logged by the Hobo Water Temp Pro and a laboratory standard thermometer.

Systems are programmed and submerged with a standard thermometer in a stirred, temperature-controlled temperature bath. The systems are read after the test by an infrared interface adapter cornected to a computer running Onset Computer Corporation's Boxcar Pro softwvare. Traceability of the certification is through the thermometer.

"As-found" certifications are performed an new systems as an acceptance test and on sensors returned from field service. 'As-left' certifications are performed before delivery for field service ifmore than 12 months has elapsed since the last certification. *As-found' and 'as-tef certifications may be combined on the same record ifthere is clear indication which type each system is undergoing.

Multiple HOBOs may be certified at the same time in the temperature bath.

35

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-O01 Rev. 0 Eff. Date 5)19103 Page 4 of 7

• Accuracy of +/-'0.2°C at 25CC (0.33'Flat 70'F)

• Waterproof case, submersible to 100 feet

• Capacity to store up to 21:580 temperature measurements

• Selectable sampling interval from 1 second to 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />

• Programmable start time/date

• Two data recording modes: Stop when full or wrap around when full.

• Two data offload modes: Halt then offload or offioad while logging.

• Nonvolatile EEPROM memory that retains data even if batteries fail

• Light-enitting diode (LED) operation, indicator, which can be disabled during logging by selecting "Stealth"1 mode High-speed IR communications for offloading data; can readout full logger in less than 30 seconds while logging continues Battery life of 6 years with typical usage 4.0 PRACTICES[EXCEPTIONS NIA 5.0 SAFETY 5.1 Standard electrical equipment safety.

6.0 STANDARDS USED 6.1 Laboratory reference thermometer, range 3D' to 100'F or greater, 0.011F resolution, 0.1'F accuracy or better, with current calibration sticker.

7.0 EQUIPMENT/APPARATUS 7.1 Temperature bath, stirred, temperature-controlled.

7.2 Computer with Onset Boxcar Pro software instaged (version 4.3 or later) 7.3 IR Base station, Onset Part # BST -IR 8.0 PREREQUISITE ACTIONS 8.1 Turn on temperature bath and set for 37'F.

8.2 Check the IR interface to verify that it is plugged into the correct serial port on the PC.

Set the correct time on the PC.

8.3 Align the IR port on the Base station with the HOBO Water Temp Pro communications window. Place the logger no further than 4 to 5 inches away from the Base station (see Figure 2) and make sure the IR windows in both devices point at each other. There is a 30' acceptance angle for the IR beam, so some misalignment is acceptable.

36

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems HN0-001 Rev. 0 Eft. Date 5119J03 Page 5 of 7 8.4 Start the Onset Box Car Software and select Logger then Hobo Water Temp Pro and Launch.

8.5 The computer will respond with a Fist of loggers found. The serial number in this list should match the serial number printed on the side of the logger. If these numbers do not match, click the Refresh button. Record this serial number on the certification form.

Either wait or click the Stop Searching button. Using the mouse select the logger and click the Launch button.

8.6 After a few seconds the screen will display the status of the HOBO Water Temp Pro.

Record the battery percentage on the certification form.

8.7 Verify that the Hobo is set to Fahrenheit and program it to a recording interval of 0:1:0 for a reading once a minute. Verify that the start logging immediately box is checked and that the set data logger clock with host launch is also checked.

8.8 Using the mouse click the Launch Immediately button.

8.9 If last HOBO is programmed click the DONE button, else select the Launch Another and repeat steps 8.5 through 8.9.

9.0 TEST PROCEDUREIMETHOD 9.1 On the certification form record the serial number of the laboratory reference thermometer.

9.2 Place the HOBO Water Temp Pro in the temperature bath, making sure the end opposite the IR windows is submerged, and allow the bath to stabilize at 370 F +/-0.5'F on the thermometer. Adjust the bath set point if needed. After the bath reaches the desired temperature allow 20 minutes 'soak time' for the HOBO to reach its final temperature.

9.3 Record the thermometer reading on the certification form arid the time. IThe time will be needed to get the correct reading from the HOBO.)

9.4 Repeat steps 92 and 9.3 for bath settings of 65.00 F +/- 0.5'F and 93F +/- 0.5*F.

9.5 Remove the HOBO from the temperature bath and align the IR port on the Base station with the HOBO Water Temp Pro communications window.

9.6 Restart Onset BoxCar Pro if it is not running and select Logger then Hobo Water Temp Pro and Readout.

9.7 The computer will respond with a list of loggers found. Using the mouse select the logger and click the Readout button. The computer will ask to download data and continue logging or the stop logging and offiload data. Select the Stop Logging and Offload data. After a few seconds the computer will respond with a suggested file name. Select Save and allow the HOBO to transfer the data.

9.8 After a successful download click the OK button. The computer will then ask if the data should be displayed in Centigrade or Fahrenheit. Deselect 0 C and select 0 F and click OK. The computer should display a graph of the collected data. Click the view details button (this is the button just left of the question mark button.)

37

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems HsO-001 Rev. 0 Eft. Date 5119103 Page 6 of 7 9.9 Scroll down the displayed list until the time recorded for the 37F point is found- Record the corresponding temperature on the certification form. Repeat this step for 650 and 931."

9.10 Close the view details windows and repeat steps 9.6 through 9.9 for additional HOBOs.

9.11 FIll out the rest of the certification form.

10.0 ACCEPTANCE CRITERIA 10.1 Based upon the manufacturer specifications the HOBO Water Temp Pro should be

,jthin +/-0.4=F over the range of 32oF to 100cF. Any HOBO with an error of greater than i'0.5F at any of the three measured points shall fail cerfification.

11.0 POST PROCEDURE ACTMTY 11.1 Close the BoxCar Software.

12.0 RECORDS 12.1 Completed HOBO Water Temperature Pro Certification form and associated Report of Certification cover sheet is a QA record.

13.0 REFERENCE 13.1 HOBO Water Temp Pro Users Manual, version 1.0 or later 13.2 Onset BoxCar Pro4 Manual Version 1.0 or later 38

TITLE: Certification of HOBO Water Temp Pro Data Acquisition Instruction No. 450.01-020 Systems H20-001 Rev. 0 Eff. Date 519W03 Page 7 of 7 TENNESSEE VALLEY AUTHORITY SN CENTRAL LABORATORIES SERVICES Page 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER TEMP PRO CALIBRATI ON RECORD Date of Certific.lion: April 25. 2001 Type of Certification: As-found As-Left X SENSOR 37 dog F 65 de F 93 deiF Battery INFO BATH TEMP BATH TEMP BATH TEMP P F L For A A I As-Found Limits Limits Limits S I F List Plant 0.40 degF OBSVD 0.40 degF OBSVD 0.40 degF OBSVD S L E SfN & PLN' -0.40 degF ERROR -0.40 degF ERROR -0.40 degF ERROR 1 0.00 0.00 0.001 -1 2 0.00 0.00 0.00 3 0.00 0.00 0.00 V 4 0.00 0.00 0.00 1 5 0.00 0.00 0.00 V 6 0.00 0.00 0.00 7 0.00 0.00 0.00 /

8 0.00 0.00 0.00 / 1 9 1 1L-000 0.00 0.00 ,1 10 1 0.00 0.00 0.00 1" SENSOR TYPE: HOBO Water Temp Pro H20-001 Remarks:

39

Calibration Certificates for HOBO Water Temperature Probes Table of HOBO Probes Used for the WBN Survey Summarized Herein Station Depth HOBO Logger Station Depth HOBO Logger (Figure 3) (feet) (Serial Number) (Figure 3) (feet) (Serial Number) 0.5 1304864 0.5 1304856 WB1 3 1304872 WB7 3 1305160 5 WB7 1305147 5 1305177 7 1304860 7 1304890 0.5 1305152 0.5 1305139 WB2 3 1304888 WB8 3 WB8 1304886 5 1304891 5 1305174 7 1304874 7 1305143 0.5 1305159 0.5 1304866 B3 3 1305144 WB9 3 --

1305140 5 1304887 5 1305150 7 1304867 7 1304870 0.5 1305168 0.5 1304861 WB4 3 1304854 WB 10 3 1305156 5 1304865 5 1304877 7 1304889 7 1305179 0.5 1304882 0.5 1134040 WB5 3 1305164 WB 1 3 WBI 11305176 5 1304853 5 1304878 7 1305182 7 1305153 0.5 1304883 0.5 1305141 WB6 3 1304868 WBI12 3 1304851 5 1305161 5 1304857 L 7 1304863 1 7 1305155 40

Pre-Survey Calibrations TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 02/22/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E43163 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Siandaids Used Log ID. No. T Description i[ Calibration Date I! Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is desianed to meet the requirements of tSO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-19g4. Standards used are traceable to the National Institute of Standards and Technology (NIST). officially recognized agencies, commercially accepted practices or natural physical constants This report shall not be reproduced except in full, without the written approval oftCLS Calibrated By: .. * .J . ai.I1:--t Approved By: _ __ '"__ ..-- ___.. _

Date Approved: /q ho,o 41

TENNESSEE VALLEY AUTHORITY ID E43163 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive. Mail Stop SPF BA-K Date 02/22/2010 Knoxville. Tennessee 37902 Phone (865) 632-2304 Fax (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100'F Accuracy +/-0.4°F 3? deg F 65 degF 93 degF Battery BATH EMP BBATH TEMP ATH TEMP P F L 36 941, 64 986 92970 A A I Sensor LIMIt- .Limits Limits S I F 340 deg F OBSVD 040 deg F OBSVD 040 deg F OBSVD S L E Number -0 40 ded ERROR -040 deg F ERRORI -040 degF ERROR11 WB1 1 - ft 1/2

-4,D46 36.99 0.04, 5.06 0071 93.00 0.031, I1 357 WB12 - 3 ft WB5 - 5 ft WV4 - 3 ft 1304852 1334854 36.89 35 94 3694

-0.05 0.00i ooo 65.02 6506 6506 -

0 03ý 007 0.07 93.00 93.09 93.05 i 0.031 0 121 ___

008 1

___ V I

3.60 3 57 360 WB7 - Y2 ft 37 04 009 65.15 0.16 93.14 0.171 - 3.57 WB12 - 5 ft 1304957 37 08, 0 141 65.23 0.241 93 19 0.22.ý __1 37 3

WB1 -7ft 1274860i 36 99 004j 65 15 0.165 93 19 I 022 1 3357 U II WB10 - 1/ ft 1 304851 36 94 000 65 10 012, 9314 0 172 357 WB6 - 7 ft 1304863 26 89 -0.051 65 06 0 071 93.09 0.12: 360 WB1 - Yft 1304864 36 94 0.00 6510 0.12 93.09 0.12 . 3.60 SENSYO ~->*E HOBO Water Temp Pro H20-001 Remarks These instruments are submerged in water for a long period ot time and no calibration label will be attached he lihbration report will be in the Instrument Log_

crra<

___ 2 CSq 2~r_ __ _ _ _

42

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E43164 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 02/22/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 02/22/2010 Item

Description:

HOBO WATER PRO TVA I D. No.: E43164 Manufacturer: Onset Computer Corporation Modei: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to CLS Norris Lab As-Left calibration in tolerance Standards Used L:),2.

I.D. No. Description Calibration Oalo Calibration Due Date 906527 Azonix. l011-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 T

his is to cen;fy that 3ll instrumentatrin, testing methods and personnel useo cornply witn the requirrmer:s of the Central Laboratories Services (CLS Qaity Ass-urance Program which is designed ti meet the requirements of ISO/IEC 17025 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/I4CSL Z540-1-1994 Standards used are traceable to the National Institu:e of Standards and Technology (NIST). officially recognized agencies, commercially accepted practces or natural physcai conntarts This report shall not be reproduced except in full, without the writter, approval of CLS.

Calibrated By: ______________ _______ Approved By: ,; 'a1 /" " "

Date Approved: 3/q ,//,

43

TENNESSEE VALLEY AUTHORITY ID E43164 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W Summit Hill Drive, Mail Stop SPB BA-K Date 02/22/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (8651 632-4996 XVATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Ranqe 1I O' F Accuracy +/-0 4'F

-- 7 I-.ieq F 65 Jeff 93 degF BatLery P F L

/-r-EMP !BATH TEMP !BATH TEMP 64986 92 970 A A 4 r,' Limits Lmits S I F OBSVD , 0.40 de gF OBSVD 040 degF OBSVD S L E ERROR -040 de gF ERROR' -0.40 de* ERROR;L V ý6 0,22 3 5 WB4 - 5 ft 0 16i 93.19 021'3 51 004i 65.15 WB9 - 1/2 ft 0121 93 14 0 17 354 3b94 0 001 5510 _

WB3 - 7 ft 16 94 0001 65.06 0.071 93 09 0.121 3 1304867C -54 WB6 - 3 ft 1304872 36.94 0.00. 65 10 0122 93 14 C17' 348 WB9 - 7 ft 0 141 65.23 024i 93 23 026, _ 351 WB1 - 3ft 3689 -0.05 65.02 003* 93 05 008 ' _ 351 1304816$

WB2 - 7 ft 04 0 09, 65 19 0 20 93 23 026 -' 354 WB10 - 5 ft 36 84 -0 101 64 97 -001 9300 0.03 v 348 WB11 -5ft ,7 04 0.09 65 19 02C 93 23 026 - - 348

-7NSC7 YP-,r-HOBOC Wa`tei Temp Pro H20-01I Remarks riStrsurnents are submerged in water for a long penild of time and no calibration label will be attached Trairat ret eror willbe in the Instrument Log LAl c 7; ____

44

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 02/24/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E43165 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standaids Used Log. I ID. No. Description I Calibration Date Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/1112010 01/111/2011 906535 Burns Engineering 12001 PRT 12110/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLSl Quality Assurance Program which is designed to meet the requirements of ISOtIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST). officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not oe reproduced except in tull. without the written approval of CLS Calibrated By: 1:41- -al ~ J Approved By: a-Date Approved: 3 45

TENNESSEE VALLEY AUTHORITY ID E43165 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Dale 02/24/2010 Knoxville, Tennessee 37902 Phone. (865) 632-2304 Fax (865' 632-4996 T

!vATER TEMPERA URE HOBOC W*TER PRO CALIBRATION RECORD Range 11 1 Accuracy +/-0 4'F 65 deg)F 93 degF iMF 3

-BATHTEMP -- TBATH TEMP P 94ý 64988 92970 Limits Limits S 40 le F OBSVID 040 aeg F OBSVD 040 deg F OBSVD S 4C' Ie ; ERROR -0 40 deo F ERROR -040 dea F ERROR WB5 - Y2 ft 005 55 06 007; 93 09 0212 , 150 WB6 - Y2ft 17 0.191 6523 024 9319 0.221 WB8 - 3 ft 324586 36 94 0.00i 65.06 - oo0.07_ 93._05 006.o8, ' ] .... - 3

• _360 WB3 - 5 ft -787 C0e. 014! 6523 0.24 93 23 0---F126 30 3'

WB2 - 3 ft '30466 3094 0 00: 65 06 0 07 93 05 008 57 WB4- 7 ft 04689 i*7 4 309 65 15 _ 016 93 09 012 360 WB7 - 7 ft '304690 3694 000i 65 10 0GI 93109 3 12 WB2 - 5 ft i -303i 704 0 091 65 19 0 20 0 22, 3 60 WB8 - %ft 1305139 019 65 27 0.28! 93 28 031 - 30

, .N i -'¢ E HOBC Aatpr Temp Pro H20-001 Remarks Tese nstruents are subtoerged in water for a long period :t time and no calibiation label will be attached

- '- -: -* - *Iiira hor'iepo'I will be in the Instrum ent Log 46

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY 2- ' 1

,1 CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville. Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 02/24/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E-44444 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to; CLS Norris Lab As-Left calibration in tolerance Standards Used Log.

ID. No. }1Description Calibration Date JlCalibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSI/NCSL Z540-I-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in lull, without the written approval of CLS Calibrated By: ,&L..L, - Approved By:

Date Approved: - /

/'9 47

TENNESSEE VALLEY AUTHORITY ID ~ **

CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive. Mail Stop SPB BA-K Date 02/2412010 Knoxville, Tennessee 37902 Phone (865) 632-2304 Fax (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range3 tc 100 F Accuracy +/-0 4'F 37 F Feq 65 degF 93 degF Battery TEM BATH TEMP BATH TEMP P F ! L 3 5 94' 64.988 I 92.970 A A I Sena! 1 Limits Limits S I F deg F OBSVD I 0.40 deg F OBSVD S L E 0 40 OBSVD 0.40 P9nF Numoer* FER(RO -0 40 den, F FRRCRi -/1 41f1 ,ln F FPRflP WB9 -3 ft 130320 37080 14i 65 23- - 0 24: 9323 0.26 3.60 3694 0,00: 65.15 0D 16i 93.23 026 V _ 3.51 WB12 - 1/2/ft 1305141 WB8 - 7 ft 3684, __ -0.10

. . 64.97 -0.01i 93.00 0,03

• V __ 360 WB3- 3 ft !305144, 36,94 0.00 65.06 0,071 9305 0.08. 36 WB7-5 ft 13C5147 3694 0.00 65.10 0111 9309 0121 v I 3.60 WB9 -5 ft 1305150 36 84 -0.10 65.02 0031 9300 I 0031 - i 360 WB2 - %ft 1303152 3689 -005 65 10 011, 93 14 0 17  ; 360 WB11 -7ft 130c153 3694 0001 6506 007i 93 05 008 __ 3860 WB12 - 7 ft 1305 15. 36 94 0001 65 06 .0.07 93 05 0 08 1 3.60 WB10 - 3 ft 1305156 36 94 0.001 65.10 0.11 93.09 0,121 360 SENSOR T7PE HOBO Water Temp Pro H20-001 Remarks These nstruments are submerged in water for a long period of time and no calibration label will be attached TKe:.~&rvt cahLiratl report will be in the Instrument Log I- Lý -I 1 C-, 7-:k7 48

Pre-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44405 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 02/26/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 02/26/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44405 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Disposilioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Loa ID. No. Description Calibration Date I Calibration Due Dale 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the

,equirements of the Central Laboratories Services ICLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-1994 Standards used are traceable to the National institute of Standards and Technology (NIST), officially recognized agencies. commercially accepted practices or natural physical constants This report shall not be reproduced except in full, without the written approval ol CLS Calibrated By: 4_1 1ý__ Approved: By: "_______

Date Approved: t J1t0 49

TENNESSEE VALLEY AUTHORITY ID E44405 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 02126/2010 Knoxville, Tennessee 37902 Phone (865, 632-2304 Fax: (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100'F Accuracy +/-0,4'F 37 deg F 1 65 degF 1 93 degF Battery 367T TEMI 36 945 BATH TEMP 64 986 JBATH TEMP 192.969 i P A A F L I

zenso -L mIts I Limits Limits S F Oenar 0 40 deg F - OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVO S L E

.urnber -0.40 den F ERROR -0.40 den F ERROR -0.40 den F ERROR WB3 - % ft :305159 37 04 009{ 65 19 0201 93 19 0 22 - 360 WB7 -3 ft *305160 -0,011 91.09 3694 -0.011 64.97 0121 3.57 WB6 - 5 ft 1305161; 3694 -0.01 65.10 - ° 124-2-- 93,09 1 0.121 1 3,57 WB5 - 3 ft 305164 36 94 -0olj 6510 0 12 93.09 1 0.12 -' 357 i

WB4 - Y2 ft 1305168 36 94 -0,01 6506 007 93 09 I 0 121I 3 57 WB8 - 5 ft i 0ý221ý 1305174 37 04 009 65 19 020. 93.19 V 3 57 WB11 -3ft 1305176 37 13 0.19 6527 0 29i 9333 I 0361 v ,*bl WB1 - 5ft _89 1305-77 36 , 6502 0031 9300 0.03 3,57 SENSOR TAPE HOBO Wa~er Temp Pro H20-001 Remarks These instruments are submerged in water for a long period of time and no calibration label will be attached.

hu cunrrent Cahrlation repon will be in the Instrument Log.

50

Pre-Survey Calibrations (Continued)

CENTRAL LABORATORIES SERVICES i 400 W. Summit Hill VALLEY TENNESSEE Drive, Mail Stop SPB BA-K AUTHORITY Knoxville, Tennessee 37902 Phonei (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For Hydrothermal Compliance Date of Report: 02/26/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44406 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.. See Attached Sheet Dispositioneo to. CLS Norris Lab As-Left calibration in tolerance Standards Used Log 1.0. No. ] Description Calibration Date IICalibration Due Date 906527 Azon*x A10t I-RS-,X Therm/Ohmmeter 01/11/2010 01/11/2011 906535 Burns Engineering 12001 PRT 12/10/2009 12/10/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45 2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to ine National Institute of Standards and Technlogy (NIST), officially recognizeo agencies, commercially accepted practices or natural physicai constants This report shall not be reproduced except in full, without the written approval of CLS.

Calibrated By /

Date Approved:  % / ,

51

TENNESSEE VALLEY AUTHORITY JID E44406 CENTRAL LABORATORIES SERVICES !Page 2 of 2 400 W Summit Hill Drive Mail Stop SP8 BA-K iDate 02/26/2010 Knoxville. Tennessee 37902 Phone (865) 632-2304 Fax (865) 632-4996 A'IATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 :I0'0 F Accuracy +/-0 4ýF BL-T TEMP -

3- deg F BATH TEMP 65 degF J BATH TEMP 93 degF 1Ba P F Ttery L

36 945 64.986 . 92 Lim969

............ its - A S I FI Senso -. j it -. . Limits Seria 40 deg

• OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Nurnber 0 40 leg F ERROR -040 deg F ERROR -040 den F ERROR _ __

WB1O - 7 ft 1305179 3708 0.14 65.19 93.23 3 57 WB5 - 7 ft 1305182 3689 -0.05 65.06 93.09 0121 V 3,60 i

7 i __________

-- ~~ T-SENSOR TYPE HOBO Water Temp Pro H20-001 Remarks Tinese instrurnents are submerged in water for a long period of time and no calibration label will be attached The current calibration report will be in the Instrument Log.

52

Post-Survey Calibrations l1 TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 03/30/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E43163 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No-: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Stanoards Used Log ID. No. Description Calibration Date I Calibration Due Date 906527 Azonix A101 1-RS-XX Therm/Ohmmeter 12/30/2008 12/30/2009 906534 Burns Engineering 12001 PRT 01/12/2009 01/12/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025. 10 CFR 50 Appendix B and ANSI N45.2-1g71, and ANSI/NCSL Z540-1-1994 Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full. \ithcut the written approval of CLS Calibrated By: .-/*I . , Approved By: _______ ______

Date Approved: .//2.. I//0 53

TENNESSEE VALLEY AUTHORITY ID E43163 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W. Summit Hill Drive. Mail Stop SPB BA-K Date 03/30/2010 Knoxville, Tennessee 37902 Phone (865) 632-2304 Fax. (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 lu 100 F Accuracy +/-0 4'F

.. .I.. . .. .f

• 37 deg F 65 oeg- 93 diegr- Battery BATH TEMP [BATH TEMP TB6ATH TEMP P F L 36939 64987 92.967 A A Sensor L _rotls Limits Limits I F Serial 040 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Nui=ber 0 40 oeu F ERROR -0.40 deg F ERROR -0.40 deg F ERROR I WB11 -V2ft 11134040ý 36 99 0.05~ 65.06 0 071 93.00 003 I/ 3.60 WB12 - 3 ft 1304851 36.89 -0.05i 65.02 1 0,031 3i 91o0 0.03 / 3.60 WB5 - 5 ft 1 304853 36 94 0.00 65 06 I 0.07 9309 013 3.57 1-WB4- 3 ft 1304854 36.94 0.00 65.06  ! 0.07 93.05 0 08 I/

3 60 4

________ 360 WB7 - 12 ft 1304856 37 04 0.10 6515 0161 9314 0o171 V I 3 57 WB12-5ft 1304857 3708 014ý 65.23 024 93.23 0127 [ 3,57 WB1 - 7ft 1304860 37,04 0.10 65.19 0.201 93 19 0.22 v 3.57 WB10--2 ft 1304861 3694 000. 65.10 012 9314 0171 - 357 WB6 -7 ft 0 131,I 130486- 36.89 -0.05, 65 06 0 071 93.09 3 57 WB1 - 1ft 2-04864 0 12; 93 09 0.13! I 360 3, 89 -005 65 10 *J SENSOq -h 0 E HOBO Water Temp Pro H20-001 Remarks -,e-e insturnments are submerged in watei for a ong period oftime and no calibration label will be attached.

The C ieport will be in the

-uaation AhueI Instrument Log

........ ....... . _. C.'#, . . .______*'__-_L",,,_.

54

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E43164 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive. Mail Stop SPB BA-K Date 03/30/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 03/30/2010 Item Description HOBO WATER PRO TVA I.D. No.: E43164 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log ID. No .1 Description E Calibration Date If Calibration Due Date 906527 Azonix A101 1-RS-X.X Therm/Ohmmeter 12/30/2008 12/30/2009 906534 Burns Engineering 12001 PRT 01/12/2009 01/12/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

arid ANSI/rJCSL Z540-1-1994 Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants This report shall not be reproduced except in full, wilhout thewritten approval oftCLS Calibrated By: __/ . _ Approved By: ,

Date Approved:

I." {/;

55

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax. (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100' Accuracy +/-0.4°F 37 deg F 65 deaF 93 deaF F Battery I.------------ F L BATH TEMP BATH TEMP BATH TEMP P 36 939 64.987 92,967 A A I Sensor Limits Limits Limits S I F Serial 0,40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L I E Number -040 deg F ERROR -0.40 deo, F ERROR , -0,40 deo F ERROR .

WB4 - 5 ft 1304865' 3704 __ 0,10 65.15 0 16 9319 0.221 , 1 3.57 I + t +

WB9 - Y ft 13048661 36.94 000 65.10 012 93 14 0.171 V 1 3 60 WB3 - 7 f 1304867) 36,94 0 00 65.06 0.07 9309 0.13 ,/ 3.60 WB6-3ff 1304868; 36.94 0,00 0.12 93 14 0.171 v 65.10 3.57 WB9-7ft 1304870; 3708 0,14 65.23 0.24 93.23 0.27 3.60 WB1-3ft 1304872 3694 000 65 02 0.03 9305 0.08 3.60 WB32- 7ft 1304874 37 08 0.14 65.23 024i 93.23 0,27 I 3,60 WB10- 5ft 13048771 36.89 -0.05 65.02 0.031 93.00 0.031 3 57 WB11-5ft 13048_78' . 3704 _ 0.10 0.10 65.19 0201 93.23 0271

___ -3704 ___ 3 57

-1 SENSOR TYPE HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a lonq period of time and no calibration label will be attached.

The current calitratlion report will be in the Instrument Log Pe~r J~L ~

56

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W. Summit Hill Drive. Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 03/31/2010 Item Description HOBO WATER PRO TVA I.D. No.: E43165 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 SIN No-: See Attached Sheet Dispositioned to: CLS Norris Lab As-Lefl calibration in tolerance Standards Used Log.

ID. No. e Description Calibration Date II Calibration Due Date 906527 Azonix A1011-RS-XX ThermlOhmmete: 12/30/2008 12/30/2009 906534 Burns Engineering 12001 PRT 01/12/2009 01/12/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSIYNCSL Z540-1-1994 Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

A1o7 Calibrated By: A i Approved By:

u~4 Date Approved:

57

TENNESSEE VALLEY AUTHORITY CENTRAL LABORATORIES SERVICES 400 W Summit Hill Drive, Mail Stop SPB BA-K Knoxville, Tennessee 37902 Phone (865) 632-2304 Fax. (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100 F Accuracy +/-0 4'F 37 aeg F 65 aeaF -93 degF Battery Ez.TO TEMP IBATH TEMP BATH TEMP P F L 64,986 92,968 A A I 36,939 Se c I u-nts Limits Limits S F 0 40 de" W OBSVD 0.40 deg F OBSVD ; 0.40 deg F OBSVD S L E

- 40 de f ERROR -040 ERROR -040 dea F ERROR 4-4-i WB5 - Y2 ft 007 16 94 0.001 65.06 93.09 i 012 I/ 3.57 WB6 - Y2 ft 3 I 3048867 0, 19 1 65.23 0 241 93 19 0221 3 57 WB8 - 3 ft 1304886 36 94 0.00 65.06 0.07 93.09 0.121 V 3.57 WB3 - 5 ft 1304887 37 08 0 14 65.23 0.24 9-3.23 0.271 3,57 93.09 0.12; 3.57 WB2 - 3 ft 2304888 36 94 0 00 65 06 0,07 WB4- 7 ft 1C4889 3704 0 10ý 55 10 012 i 93.09 012 3 57 0_12i WB7 - 7 ft 1304890 35 94 0 001 65 10 93 09 0.12, - _ 3.57 WB2 - 5 ft 1304891 37 08 0.14, 6519 0 20 9323 0,271 v 360 WB8 - Y2 ft 130519 .. 37 13 0 191 65 27 9328 0311 357 SENSOP VPE HOBO, ater Temp Pro H20-001 Remarks ose instru-ments are submerged in water for a long periio ot time and no calibration label will be attached

-e 0.1r 2airatirn repor will be in the Instrument og.

t-af ~ I~jm~ *zo-_ _ _ _ _

58

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44404 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 03/31/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 03/31/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44404 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 SIN No., See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log 1.D. No Description Calibration Date Calibration Due Date 906527 [Azonix At10 11 -RS-X.X Therm/Ohmmeter 12/30/2008 12/30/2009 906534 1Burns Engineering 12001 PRT 01/12/2009 01/12/2010 5 t 4 +

__ I _______ I ___ I ___

This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of IS0/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST). officially recognized agencies, commercially accepted practices or natural physical constants. This repor shall not be reproduced except in full, without the written approval of CLS.

Calibrated By: ,'-..-- Approved By: _,

Date Approved:

59

TENNESSEE VALLEY AUTHORITY ID E44404 CENTRAL LABORATORIES SERVICES Page 2 of 2 400 W Summit Hill Drive, Mail Stop SPB BA-K Date 03!31/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax (865) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to IO00F Accuracy +/-0 4'F 37 deg F - 65 degF 93 degF Battery 5ATH TEMP BATH TEMP BATH TEMP P F L 36 939 64986 92 968 A A I Senso r nIts Limits Limits S I F Senal 0 40 deg F OBSVD 0.40 deg F OBSVD 040 deg F OBSVD S L E Number -0 40 deg F ERROR L -040 deg F ERROR, -040 degF ERROR WB9 - 3 ft 1305140 37 08 0.14 65.23 0.24 93.28 i 031i 11 3.57 WB12-/ 2 ft 1305141 36.94 000 65.15 0 16 93.23 0.271 ~ 3.57 WB8-7ft 1305143 36 84 -0.10 6497 -001 II93.00 00.03

. 3 I 3.57 3

008 WB3 - 3 ft 1305144 36 99 0.05 65.06 0.071 1 91.05 9.5 08 357 WB7 - 5ft 1305147 36.99 005 65.10 i 0.12 93.14 0171 1 3.60 i

-0.10

. 65.02 3* 0.081 i3 57 WB9 - 5 ft 1305150 36 84 0.03 93.05 W'B2-%f 1305152 36 89 -0.05 6510 012 93.19 022, 3 57 WB11 -71f 1305153 3694 0,001 6506 0 07 93 09 0 121, 3 57 WB12 -7 ft 1305155 36.94 0.00 65.06 0071 9305 008 1 3157 WB10-3ft 1305156 36 94 000 65 10 012ý 93 14 017 , 3 57 SENSOR TYPE HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached The current calibration report will be in the Instrument Log.

.... .... --JJ.A/ P*-r (,* *Y _- _7" 60

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44405 CENTRAL LABORATORIES SERVICES Page 1 of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 04/01/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING INSTRUMENTATION REPORT OF CALIBRATION Calibrated For: Hydrothermal Compliance Date of Report: 04/01/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44405 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.. See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log ID. No. Description Calibration Date I! Calibration Due Date 906527 Azonix A1011 -RS-XX Therm/Ohmmeter 12/30/2008 12/30/2009 906534 Burns Engineering 12001 PRT 01112/2009 01/12/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISOMIEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-197t, and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants This report shall not be reproduced except in full. without the written approval of CLS Approved By: /*;

A2 '*4"',

By *"/f" Calibrated By: týy.Z-

/I Date Approved:

61

TENNESSEE VALLEY AUTHORITY ID E44405 CENTRAL LABORATORIES SERVICES 1Page 2 of 2 400 W. Summit Hill Drive. Mail Stop SPB BA-K Date 04/0112010 Knoxville Tennessee 27902 Phone. (865) 632-2304 Fax (865) 632-4996 AATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Rancie 0 tu 100'F Accuracy +/-0 4'F 37 dieg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36 939 64 983 92 970 A A Sensor Lmins Limits Limits S I F deg F OBSVD 0.40 deg F OBSVD S L E Serial 0 40 deg F OBSVD 0.40 Nmiler -C 40 deq F ERROR I -0.40 deg F ERROR -0.40 deg F ERROR; WB3 - Y2 ft I325159 27 08 0141 6519 020 93.19 0.221 360 WB7 -3 ft 305' 0 3e 94 0001 65 10 012 9309 0121 V i 357 WB6 - 5 ft 1305161 3694 0.001 65.10 012 9309 0.121 1 j 357 WB5 - 3 ft 1305164 36 94 0.001 6510 3 12. 93 14 0.17 3.57 i i WB4 - Y2 ft 1305168 35 94 0001 6 5.06 008; 9309 0t12i 357 WB8 - 5 ft 105t74 37 04 0.10O 6 5 19 020 9319 022 3.57 WB11 -3ft 13051'6 37 08 0.14 6 5,27 0291 9333 036 1 37 WB1 - 5 ft 1305t 36 94 0003 6 5,02 0032 9300 o.o3ý 3 57 SENSOR TVPE HOBO WVater Temp Pro H20-001 Remarks 'T"ese nstriruments are submerged in water tor a Iona period of time and no calibration label will be attached ThtuCLJIIer: calihraton 'eport will be in the Instrument Log.

_ýc&f

-,~~~~~~~ .. ~~~~Ps7 ~ ~ _ _ _ __ _ _ _ _ _ _

62

Post-Survey Calibrations (Continued)

TENNESSEE VALLEY AUTHORITY ID E44406 CENTRAL LABORATORIES SERVICES Page I of 2 400 W. Summit Hill Drive, Mail Stop SPB BA-K Date 04/01/2010 Knoxville, Tennessee 37902 Phone: (865) 632-2304 Fax: (865) 632-4996 METEOROLOGICAL MONITORING ,NSTRUMENTATIOPd REPORT OF CALIBRATION KU Calibrated For. Hydrothermal Compliance Date of Report: 04/01/2010 Item

Description:

HOBO WATER PRO TVA I.D. No.: E44406 Manufacturer: Onset Computer Corporation Model: H20-001 CLS Instruction No.: 450.01-020 S/N No.: See Attached Sheet Dispositioned to: CLS Norris Lab As-Left calibration in tolerance Standards Used Log:

I.D. No. Descrition n Calibration Date Calibration Due Date 906527 AzonixA1011-RS-XX Therm/Ohmmeter 12/30/2008 12/30/2009 906534 Bums Engineerng 12001 PRT 01/12/2009 01/12/2010 This is to certify that all instrumentation, testing methods and personnel used comply with the requirements of the Central Laboratories Services (CLS) Quality Assurance Program which is designed to meet the requirements of ISO/IEC 17025, 10 CFR 50 Appendix B and ANSI N45.2-1971.

and ANSI/NCSL Z540-1-1994. Standards used are traceable to the National Institute of Standards and Technology (NIST), officially recognized agencies, commercially accepted practices or natural physical constants. This report shall not be reproduced except in full, without the written approval of CLS.

CalibratedBy: Approved By: ir,1eO Date Approved:_____ ______

63

TENNESSEE CENTRAL VALLEY AUTHORITYpalIDg LABORATORIES SERVICES Page E44406 400 W. SummitnxileHill TenseDrive, Mail Stop370SPB BA-K Date 04/121 Phone: (565) 632-2304 Fax: (865*) 632-4996 WATER TEMPERATURE HOBO WATER PRO CALIBRATION RECORD Range 0 to 100'F Accuracy +/-0.4"F 37 deg F 65 degF 93 degF Battery BATH TEMP BATH TEMP BATH TEMP P F L 36.939 64.983 92.970 A A I Sensor Limits Limits Limits S I F Senal 0.40 deg F OBSVD 0.40 deg F OBSVD 0.40 deg F OBSVD S L E Number -0.40 deg F ERROR -0.40 d F ERROR -0.40 deg F ERROR WB10-7ft 1305179 37.01 0.14 65.19 0.201 93.23 0.26 , 3.57 WB5 -7 ft 1305182 36.94 0.00 65.06 0.08 9309 0.121 1 3.60 I

SENSOR TYPE:HOBO Water Temp Pro H20-001 Remarks These Instruments are submerged in water for a long period of time and no calibration label will be attached.

The current calibration report will be in the Instrument Logi.

1305180 is an extra Hobo put into this calibration. Was not used at WBN.

64

APPENDIX B WBN Outfall 113 NPDES Compliance Parameters

• Current Instantaneous Upstream Temperature:

Tu i (measured at EDS Station 30 by the first sensor below a depth of 5 feet)

• Current 1-Hour Average Upstream Temperature:

Tul Tui + Tui + Tui 2 + Tui_ 3 + Tui_ 4 5

where the subscripts i, i-1, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of Tu

• Current Instantaneous Downstream Temperature:

Tdi== Td3i +Td5i +Td7i 1 3

where Td3i, Td5i, and Td7i denote the current measurements of river temperature at the downstream end of the mixing zone at water depths 3 feet, 5 feet, and 7 feet, respectively

• Current 1-Hour Average Downstream Temperature:

Tdlj = Tdi +Td- 11 +Tdi- 2 +Tdi- 3 +Tdi-4 5

where the subscripts i, i-1, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of Td

" Current Instantaneous Temperature Rise:

ATi = Tdi - Tui 65

0 Current 1-Hour Average Temperature Rise:

ATj + ATj~ + ATj- 2 + A1>- +ATI> 4 AT1i =

5 where the subscripts i, i- 1, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of AT

• Current Temperature Rate-of-Change:

TROCi = Tdi -Td 4 I hour

• Current 1-Hour Average Temperature Rate-of-Change:

TROCi + TROCi- 1 + TROCj- 2 + TROCj- 3 + TROCj- 4 TROC1i =

5 where the subscripts i, i-1, i-2, i-3, and i-4 denote the current and previous four 15-minute (0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />) values of TROC 66