CPSES-200600871, Transmittal of the Annual Radiological Environmental Operating Report for 2005
| ML061220745 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 04/28/2006 |
| From: | Madden F TXU Power |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| CPSES-200600871, RP-10, TXX-06081 | |
| Download: ML061220745 (57) | |
Text
dt'sk3 TXUJ Power TXU Power Mike Bevins Ref: IOCFR50.55 Comanche Peak Steam Senior Vice President &
Electric Station Chief Nuclear Officer P.O. Box 1002 (EO1)
Glen Rose. TX 76043 Tel: 254 897 5209 Fax: 254 897 6652 mike.blevins~txu.com CPSES-200600871 Log # TXX-06081 File# RP-10 April 28, 2006 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50-446 TRANSMITTAL OF THE ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 2005 Gentlemen:
Enclosed is one (1) copy of the Annual Radiological Environmental Operating Report for the CPSES Radiological Environmental Monitoring Program. This report is submitted pursuant to Section 5.6.2 of the CPSES Unit I and 2 Technical Specifications (Appendix A to Operating License Nos. NPF-87 and NPF-89). Th.
report covers the period from January 1, 2005 through December 31, 2005 and summarizes the results of measurements and analysis of data obtained from samples collected during this interval.
If there are any questions regarding this report, contact Bob Kidwell at (254) 897-5310 or Scott Bradley at (254) 897-5495.
61'?-S A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway
- Comanche Peak
- Diablo Canyon
- Palo Verde
- South Texas Project
- Wolf Creek
TXX-06081 Page 2 of 2 This communication contains no new licensing basis commitments regarding CPSES Units I and 2.
Sincerely, TXU Generation Company LP By: TXU Generation Management Company LLC Its General Partner Mike Blevins By: I.S t;2Lw
/Fred W. Madden Director, Regulatory Affairs RJK Enclosure c - B. S. Mallett, Region IV w/cncl M. C. Thadani, NRR (clo)
Resident Inspectors, CPSES w/encl
TXU POWER COMANCHE PEAK STEAM ELECTRIC STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 2005 JANUARY 1,2005 through DECEMBER 31,2005 TXU REVIEW and APPROVAL REVIEED BY: ISB)YnA R Xt2L414It p Bonnie Vaughan Date Radiation Protection Technician APPROVED BY: ERG Scott E. Bradley Date Health Physics Supervisor I
Table of Contents Section Title I. Introduction A. Sitc and Station I)escription page 5 B. Objectives and Overview of the CPSES Radiological Environmental Monitoring P rogram page 5 I]:. Program Descriptions and Results A. Sample Locations page 7 Table 1 - Comanche Peak Steam Electric Station Radiological Environmental Monitoring Program for 2005 Table 2 -- Key to Environmental Sampling Locations B. Direct Radiation Program page 11 Methods, Procedures and Result Summaries Exceptions to the Program Table 3 - 2005 Environmental Direct Radiation Results Table 14 -- 2005 Environmental TLD Trend C. Airborne Programi page 15 Methods, Procedures and Result Summaries Exceptions to the Program Table 4 - 2005 Environmental Airborne Particulate Gross Beta Results Graph 1- 2005 Environmental Air Sample Gross Beta Results -
Maximum and Minimum Table 5- 2005 Environmental Air Sample Iodine-131 Results Table 6 - 2005 Environmental Air Particulate Composite Gamma Isotopic Results 2
D. Surface Water lrogrampg page 2.1 Methods, Procedures and Result Summaries Exceptions to the Program Table 7 -- 2005 Environmental Surface Water Tritium and Gamma Isotopic Results Graph 2-- 2005 Environmental Surface Water Tritium Results E,. Surface Drinking Water Program page 25 Methods, Procedures and Result Summaries Exceptions to the Program Table 8 - 2005 Environmental Surface Drinking Water Tritium, Gross Beta and Gamma Isotopic Results Graph 3- Squaw Creek Maximum Tritium Values Graph 4-- 2005 Environmental Surface Drinking Water Tritium Results Graph 5-- 2005 Environmental Surface Drinking Water Gross Beta Results F. Grouiiidwatcr Program page 30 Methods, Procedures and Result Summaries Exceptions to the Program Table 9 -- 2005 Environmental Groundwater Tritium and Gamma Isotopic Results C. Sediment Program pagc 32 Methods, Procedures and Result Summaries Exceptions to the Program Table 10 -- 2005 Environmental Sediment Gamma Isotopic Results
- 11. Fish Programu page 34 Methods, Procedures and Result Summaries Exceptions to the Program Table II - 2005 Environmental Fish Gamma Isotopic Results 3
1--;j
- 1. Food Products Program 3 page 36 Methods, Procedures and Result Summaries Exceptions to the Program Table 12 - 2005 Environmental Food Products Gamma Isotopic Results J. Broadlcaf Program page 38 Methods, Procedures and Result Summaries Exceptions to the Program Table 13 - 2005 Environmental Broadleaf Iodine-131 and Gamma Isotopic Results K. Conclusions page 40 L. Intcrlaboratory Comparison and Cross Check Program page 40 Appendix A Comanche Peak Steam Electric Station Land Use Census 2005 page 43 4
I. Introduction Results of the Radiological Environmental Monitoring Program for the Comanche Peak Steam Electric Station (CPSES) for the year 2005 are contained within this report. This report covers the period from January 1, 2005 through December 31, 2005 and summarizes the results of measurements and analysis of data obtained from environmental samples collected during this same timeframe.
A. Site and Station Description CPSES consists of two pressurized water reactor units, each designed to operate at a power level of about 1150 megawatts (electrical). The Station is located on Squaw Creek reservoir in Somervell and Hood counties, about forty miles southwest of Fort Worth, Texas. Unit 1 received a low power operating license February 8, 1990 and achieved initial criticality on April 3, 1990. A full power license for Unit I was issued on April 17, 1990 and commercial operation was declared on August 13, 1990. Unit 2 achieved initial criticality on March 24, 1993 and synchronized to the electrical grid on April 9, 1993.
B. Objectives and Overviews of the CPSES Radiological Environmental Monitoring Program The United States Nuclear Regulatory Commission (USNRC) regulations require that nuclear power plants be designed, constructed, and operated to keep levels of radioactive material in effluents to unrestricted areas as low as reasonably achievable (ALARA). To assure that these criteria are met, each license authorizing reactor operation includes technical specifications governing the release of radioactive effluents.
In-plant monitoring is used to assure that these predetermined release limits are not exceeded. However, as a precaution against unexpected and undefined processes that might allow undue accumulation of radioactivity in any sector of the environment, a program for monitoring the plant environs is also included.
Sampling locations were selected on the basis of local ecology, meteorology, physical characteristics of the region, and demographic and land use features of the site vicinity. The radiological environmental monitoring program was designed on the basis of the USNRC Branch Technical Position "An Acceptable Radiological Environmental Monitoring Program" on radiological environmental monitoring issued by the Radiological Assessment Branch, Revision I (November 1979), the CPSES Technical Specification "Comanche Peak Steam Electric Station Units 1 and 2 Technical Specifications" and the "CPSES Offsite Dose Calculation Manual" (ODCM).
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In 2005, the Radiological Environmental Monitoring Program included the following:
- The measurement of ambient gamma radiation by thermoluminescent dosimetry;
- The determination of airborne gross beta, gamma emitters, and Iodine-i 31;
- The determination of tritium and gamma emitters in surface water;
- The determination of gross beta, tritium, lodine-131, and gamma emitters in drinking water;
- The determination oftritium and gamma emitters in ground water;
- The determination of gamma emitters in sediment and fish;
- The determination of gamma emitters in food products and;
- The determination of gamma emitters and lodine-I 31 in broadleaf vegetation.
The regulations governing the quantities of radioactivity in reactor effluents allow nuclear power plants to contribute, at most, only a small percentage increase above normal background radioactivity. Background levels at any one location are not constant but vary with time as they are influenced by external events such as cosmic ray bombardment, weapons test fallout, and seasonal variations. These levels also can vary spatially within relatively short distances reflecting variations in geological composition. To differentiate between background radiation levels and increases resulting from operation of CPSES, the radiological surveys of the plant environs were divided into pre-operational and operational phases.
The pre-operational phase ofthe program provided a general characterization of the radiation levels and concentrations prevalent in these areas prior to plant operation along with an indication of the degree of natural variation to be expected. The operational phase of the program obtains data which, when considered along with the data obtained in the pre-operational phase, assists in the evaluation of the radiological impact of plant operation.
Pre-operational measurements were conducted at CPSES from 1981 to 1989. These pre-operational measurements were performed to:
- Evaluate procedures, equipment, and techniques;
- Identify potentially important pathways to be monitored after plant operation;
- Measure background levels and the variations along potentially important pathways and; 6
- Provide baseline data for statistical comparisons with future operational analytical results.
The operational Radiological Environmental Monitoring Program is conducted to:
- Verify that measurable concentrations of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and modeling of the environmental exposure pathways;
- Verify the effectiveness of in-plant measures used for controlling the release of radioactive materials and;
- Identify changes in the areas at and beyond the site boundary that may impact the principal pathways of exposure.
This report documents the fourteenth year of operational measurements and is submitted in accordance with the requirements of the CPSES Offsite Dose Calculation Manual, Part I, Administrative Control 6.9.1.3.
- 11. Program Descriptions and Results A. Sample Locations Within a radius of twenty miles of the CPSES site there are seventy-two (72) sample locations included in the monitoring program for the year 2005. The number of sample points and the specific locations for the sample points were determined by considering locations where the highest off-site environmental concentrations have been predicted from plant effluent source terms, site hydrology, and site meteorological conditions.
Other factors considered were applicable regulations, population distribution, and ease of access to sampling stations, availability of samples at desired locations, security and future program integrity.
Additionally an annual land use census is conducted to identify changes in the areas surrounding the plant. If changes are identified that impact the principle pathways of exposure, appropriate changes to the radiological environmental monitoring program are implemented. A copy of the report "Comanche Peak Steam Electric Station Land Use Census 2005" is provided in Appendix A to this report.
Table 1 - Comanche Peak Steam Electric Station Radiological Environmental Monitoring Program for 2005 contains a brief outline of the current program. This table specifies the sample media type, the number of locations for each media type, the sector and distance identifier for each sample location, the sample frequency, the type of analysis required and the analytical frequency required.
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Table 2 - Key To Environmental Sampling Locations provides a reference that links the sampling point designations used in procedures and forms to the appropriate physical sample location (sector and distance) and to the correct sample type. This cross-reference enhances the ability to review data and tie the data to the correct sample points and to ensure all samples are collected and analyzed as specified.
Currently there are no milk sample locations within ten miles of the CPSES site and there are no milk sample locations within twenty miles that will participate in the environmental program. CPSES already samples extra broadleaf locations as required due to no milk locations within the ten-mile radius therefore, no changes to the program are necessary. Milk sampling will be resumed if any future annual land use census determines a dairy has been established within the specified area.
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Table I - Comanche Peak Steam Electric Station Radiological Environmental Monitoring Program for 2005 Media Number of Locations IIIII.LuI L.L. and M:s&nc :m-es Sampling Frequency (a)
Ans!ysis Analytical Frequency (a)
N-1.45; N-4.4; N-6.5; N-9.4; NNE-1.1; NNE-5.65; NE-1.7; NE-4.8; ENE-2.5; ENE-5.0; E-0.5; E-1.9; E-3.5; E-4.2; ESE-1.4; ESE-4.7; SE-1.3; Gamma SE-3.85; SE-4.6; SSE-1.3; SSE-4.4; SSE-4.5; ThermoluminescentQA Exposure 43 S-1.5; S-4.2; SSW-1.1; SSW-4.4; SW-0.9; Q, A Dosimetry QA SW-4.8; SW-12.3; WSW-1.0; WSW-5.35; WSW-7.0; W-1.0; W-2.0; W-5.5; WNW-1.0; WNW-5.0; WNW-6.7; NW-1.0; NW-5.7; NW-9.9; NNW-1.35; NNW-4.6 Gross Beta W Air Particulate N-9.4; E-3.5; SSW-4.5; SW-12.3; NW-1.0; Gamma Isotopic Filter QC Air Iodine 8 N-1.45; SWiWSW-0.95; S/SSW-1.2 W Gamma Isotopic W Charcoal Surface Water 4 N-19.3; ESE-1.4; N-1.5; NE-7.4 M(b) Gamma Isotopic M Tritium QC Gross Beta M Surface Gamma Isotopic M Water/Drinking 2 NNW-0.1; N-9.9 M(c) lodine-131 M Tritium QC Ground Water 5 SSE-4.6; W-1.2; WSW-0.1; N-9.8; N-1.45 Q Trtium Q Sediment 4 N-9.9; NNE-1.0; NE-7.4; SE-5.3 SA Gamma Isotopic SA Fish 2 NNE-8.0; ENE-2.0 SA Gamma Isotopic SA Food Products 1 ENE-9.0 MH Gamma Isotopic MH lodine-131 MH Broadleaf 3 N-1.45; SW-1.0; SW-13.5 M Gamma Isotopic M (a) Frequency codes are: W-Weekly; M-Monthly; Q-Quarterly; QC-Quarterly Composite; MH-Monthly at Harvest; SA-Semiannual; A-Annual (b) Surface water samples from Squaw Creek are monthly composites of weekly grab samples. Surface water samples from Lake Granbury are monthly grab samples.
(c) Surface water drinking samples are a monthly composite of weekly grab samples.
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Table 2 Key To Environmental Sampling Locations SAMPLUNG LOCATION SAMPLE SAMPLING LOCATION SAMP]LE POINT (SECTOR-MILE) TYPE* POINT (SECTOR-MILE) TYPE*
Al N-1.45 A R29 SW-12.3 R A2 N-9.4 A R30 WSW-I.0 R A3 E-3.5 A R31 WSW-5.35 R A4 SSE4.5 A R32 WSW-7.0 R A5 S/SSW-1.2 A R33 W-1.0 R A6 SW-12.3 A R34 W-2.0 R A7 SW/WSW-0.95 A R35 W-5.5 R A8 NW-1.0 A R36 WNW-1.0 R RI N-1.45 R R37 WNW-5.0 R R2 N-4.4 R R38 WNW-6.7 R R3 N-6.5 R R39 NW-1.0 R R4 N-9.4 R R40 NW-5.7 R R5 NNE-1.l R R41 NW-9.9 R R6 NNE-5.65 R R42 NNW-1.35 R R7 NE-1.7 R R43 NNW4.6 R R8 NE-4.8 R SWI N-1.5 SW R9 ENE-2.5 R SW2 N-9.9 SW/DW RIO ENE-5.0 R SW3 N-19.9 SW Rll E-0.5 R SW4 NE-7.4 SW R12 E-1.9 R SW5 ESE-1.4 SW R13 E-3.5 R SW6 NNW-0.1 SW/DW R14 E-4.2 R GWI W-1.2 GW/DW R15 ESE-1.4 R GW2 WSW-O.1 GW/DW R16 ESE-4.7 R GW3 SSE-4.6 GW/DW R17 SE-1.3 R GW4 N-9.8 GW/DW R18 SE-3.85 R GW5 N-1.45 GW/DW R19 SE-4.6 R SSI NNE-1.0 SS R20 SSE-1.3 R SS2 N-9.9 SS R21 SSE-4.4 R SS3 NE-7.4 Ss R22 SSE-4.5 R SS4 SE-5.3 s5 R23 S-1.5 R Fl ENE-2.0 F R24 S-4.2 R F2 NNE-8.0 F R25 SSW-1.1 R FP1 ENE-9.0 FP R26 SSW-4.4 R BLI N-1.45 BL R27 SW-0.9 R BL2 SW-I.O BL R28 SW-4.8 R BL3 SW-13.5 BL Sample Type* A - AIR SAMPLE GW - GROUND WATER F- FISII R- DIRECT RADIATION SS- SHORELINE SEDIMENT FP - FOOD PRODUCT SW- SURFACE WATER BL- BROADLEAF VEGETATION DW - DRINKING WATER 10
B. Direct Radiation Thermoluminescent dosimeters (TLDs) were used to determine the direct (ambient) radiation levels at the designated monitoring locations. The monitoring locations were chosen according to the criteria given in the USNRC Branch Technical Position on Radiation Monitoring (Revision 1, November 1979). The area around the station was divided into 16 radial sectors of 22-1/2 degrees each, corresponding to the cardinal points of the compass. TLDs were placed in each of these sectors. The thermoluminescent dosimeters were placed in two rings around the station.
An inner ring was located as close as possible to the site boundary and an outer ring was located at a distance of 4 to 6 miles from the station. Eleven additional TLDs were located at points of special interest, including two control locations. For routine direct radiation measurements, two sets of the Panasonic CaSO4:Dy TLDs were used at each of the 43 monitoring locations. One set of TLDs was exchanged on a quarterly basis and a second set of TLDs was exchanged on a yearly basis. Additional sets of in-transit TLD's were used as control TLDs for the quarterly and annual TLDs.
The thermoluminescent dosimeters were processed on-site by CPSES National Voluntary Laboratory Accreditation Program (NVLAP) Certified dosimetry personnel. Individual dosimeters were calibrated by exposure to an accurately known radiation field from a certified Cs-137 source. The year 2001 was the first year that CPSES used the Panasonic TLD System to supply all the required direct radiation (ambient) monitoring. Dosimetry data for the year 2005 provided consistent results in support of the year 2001 dosimetry results previously obtained with the onsite dosimetry processing system.
D. C. Oakley's report "National Radiation Exposure in the United States",
published in 1972, calculated a background radiation dose rate equivalent of 0.22 mr/day for the area surrounding Fort Worth, Texas. This calculated value varies widely with changes in location but represents an appropriate reference value to compare with actual measured TLD doses.
Using data from the pre-operational program for the two years prior to the startup of Unit I, the quarterly TLDs averaged a calculated dose rate of 0.14 mr/day while the yearly TLDs averaged a calculated dose rate of 0.16 mr/day. The range of measured values from this same two-year period varied from a minimum of 0.11 mr/day to a maximum of 0.22 mr/day.
Table 3 - 2005 Environmental Direct Radiation Results contains the measured dose (mr) for each quarterly TLD from each of the 43 monitoring locations. The corresponding quarterly calculated dose rate (mr/day) values are listed as well. The statistical average doses (mr) and dose rate (mr/day) values for each set of quarterly TLDs is also displayed.
Additionally, the table includes the total dose (mr) of all four quarters for each specific location. The table also includes the measured dose (mr) for 11
U- _ --- ---
each annual TLD from each of the 43 monitoring locations. The corresponding annual calculated dose rate (mr/day) values are listed as well. The statistical annual average dose (mr) for the entire set of annual TLDs is reported along with the average dose rate (mr/day) for the entire set of annual TLDs.
For the year 2005, the statistical average dose rate of all the quarterly TLD's was 0.058 mr/day. The quarterly measured dose rates ranged from a minimum of 0.0152 mr/day to a maximum of 0.1321 mr/day. The statistical average dose rate of all the annual TLDs was 0.0575 mr/day.
The annual measured dose rates ranged from a minimum of 0.0136 mr/day to a maximum of 0.0986 mr/day. There was good agreement between the sum of the measured doses of the individual quarterly TLDs and the measured dose of the annual TLDs. The summation of the individual quarterly measured doses averaged 21.05 mr for all the forty three monitoring stations while the annual measured dose averaged 20.66 mr for all the monitoring stations.
Comparing the pre-operational data and operational data collected through the year 2005 did not produce any anomalies. The direct radiation dose data for 2005 was consistently lower than previous years of data during both the pre-operational program and the previous years of the operational program. The implementation of the Panasonic TLD system and the algorithms used to process the data from this new type TLDs accounts for the lower values as well as different type holders for the TLD's.
During the year 2005, there was one exception to the Direct Radiation Program. All quarterly and annual TLDs were placed into the field at their proper locations and on the appropriate frequency. Collection of all TLDs occurred as specified with the exception of location R35. On 9/29/05, during the Quarterly change out, both the Quarterly and Annual TLDs for this location were missing due to construction. The new Quarterly TLD was placed into service on 9/29/05 and no data was received for the period of 6/30/05 through 9/29/05. The new Annual TLD was placed into service on 9/30/05 and data for the year is based on the time period from 9/30/05 through 12130/05. Smart form 2006-000580 was written to address this issue. No abnormal quarterly results were obtained by either CPSES or by the State of Texas, Bureau of Radiation Control.
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Table 3 -- 2005 Environmental Direct Radiation Results (Units of mr dose and mr/day dose rate) 1ST 2ND 3RD 4TH QTR Average QTR Average QTR Average QTR Average QTR Annual Average Location Total mr/day Total mr/day Total mr/day Total mr/day Total Total mrlday N-1.45 3.70 0.0420 4.70 0.0517 3.50 0.0380 4.80 0.0522 16.70 20.10 0.0551 N-4.4 7.20 0.0818 7.80 0.0861 10.30 0.1130 9.00 0.0978 34.30 30.10 0.0823 N-6.5 7.20 0.0813 5.60 0.0617 5.10 0.0560 6.70 0.0723 24.60 23.30 0.0637 N-9.4 4.30 0.0489 5.50 0.0611 4.80 0.0520 6.50 0.0707 21.10 23.20 0.0636 NNE-1.1 6.90 0.0770 1.90 0.0213 0.50 0.0050 2.20 0.0239 11.50 5.00 0.0136 NNE-5.65 3.30 0.0369 5.70 0.0628 5.70 0.0630 7.80 0.0848 22.50 23.20 0.0634 NE- 1.7 4.00 0.0449 1.40 0.0157 0.80 0.0080 1.70 0.0185 7.90 8.40 0.0230 NE-4.8 2.50 0.0284 6.00 0.0667 4.40 0.0480 6.50 0.0701 19.40 23.70 0.0649 ENE-2.5 4.60 0.0523 7.70 0.0850 6.40 0.0700 9.10 0.0984 27.80 29.20 0.0800 ENE-5.0 2.80 0.0313 8.90 0.0983 8.30 0.0910 12.20 0.1321 32.20 36.00 0.0986 E-0.5 5.20 0.0585 10.10 0.1122 5.80 0.0630 8.60 0.0935 29.70 25.70 0.0703 E-1.9 3.60 0.0409 3.40 0.0372 3.70 0.0400 4.20 0.0457 14.90 16.00 0.0438 E-3.5 3.80 0.0432 8.60 0.0956 8.00 0.0880 10.40 0.1125 30.80 35.30 0.0966 E-4.2 6.30 0.0716 7.40 0.0822 10.20 0.1120 8.80 0.0951 32.70 27.30 0.0748 ESE-1 .4 5.20 0.0585 5.10 0.0567 3.20 0.0350 5.50 0.0592 19.00 17.00 0.0466 ESE-4.7 4.90 0.0551 6.80 0.0756 5.50 0.0600 7.70 0.0837 24.90 28.40 0.0778 SE-1.3 4.20 0.0477 6.90 0.0761 5.60 0.0620 7.60 0.0821 24.30 28.90 0.0790 SE-3.85 4.40 0.0494 4.50 0.0500 4.60 0.0510 5.10 0.0554 18.60 17.20 0.0471 SE-4.6 2.70 0.0301 4.20 0.0467 5.00 0.0540 5.40 0.0582 17.30 19.00 0.0519 SSE-1 .3 4.80 0.0545 6.60 0.0733 3.90 0.0430 5.40 0.0587 20.70 17.90 0.0490 SSE-4.4 3.40 0.0386 5.70 0.0628 4.90 0.0540 5.70 0.0614 19.70 22.20 0.0607 SSE-4.5 5.80 0.0653 5.10 0.0567 7.10 0.0770 5.60 0.0609 23.60 18.30 0.0500 S-1.5 5.10 0.0574 3.70 0.0406 3.50 0.0380 4.90 0.0533 17.20 17.30 0.0474 S-4.2 1.60 0.0182 5.50 0.0611 5.10 0.0560 6.10 0.0658 18.30 19.90 0.0544 SSW-1.1 4.90 0.0557 5.50 0.0606 4.60 0.0510 7.10 0.0772 22.10 22.70 0.0621 SSW-4.8 4.00 0.0449 5.80 0.0644 4.90 0.0530 6.10 0.0658 20.80 18.70 0.0512 SW-O.9 7.10 0.0801 6.00 0.0667 4.80 0.0530 6.40 0.0696 24.30 16.20 0.0442 SW-4.8 5.80 0.0659 5.20 0.0572 3.70 0.0410 4.70 0.0511 19.40 15.60 0.0427 SW-12.3 Control 9.10 0.1028 6.10 0.0678 4.80 0.0520 5.50 0.0598 25.50 22.20 0.0608 WSW-1.0 5.90 0.0665 5.20 0.0572 5.30 0.0580 6.80 0.0739 23.20 23.30 0.0638 WSW-5.35 4.90 0.0551 6.30 0.0694 4.10 0.0450 5.30 0.0576 20.60 20.60 0.0563 WSW-7.0 Control 1.00 0.0114 6.50 0.0722 5.40 0.0590 7.20 0.0783 20.10 27.80 0.0762 W-1.0 2.70 0.0307 5.30 0.0583 2.30 0.0250 4.20 0.0457 14.50 13.80 0.0377 W-2.0 3.90 0.0438 2.70 0.0294 2.80 0.0300 3.80 0.0413 13.20 13.40 0.0367 W-5.5 5.90 0.0665 3.90 0.0433 4.70 0.0511 14.50 4.90 0.0533 WNW-1.0 6.30 0.0710 6.90 0.0767 6.00 0.0650 6.80 0.0739 26.00 26.50 0.0726 WNW-5.0 5.80 0.0659 5.60 0.0617 5.40 0.0590 6.00 0.0647 22.80 24.20 0.0662 WNW-6.7 4.90 0.0557 5.20 0.0578 5.00 0.0550 5.70 0.0614 20.80 20.10 0.0551 NW- 1.0 5.00 0.0568 4.70 0.0517 3.40 0.0370 4.80 0.0522 17.90 17.00 0.0464 NW-5.7 4.50 0.0511 5.40 0.0594 4.00 0.0440 6.30 0.0679 20.20 24.50 0.0670 NW-9.9 4.50 0.0506 3.60 0.0394 4.00 0.0440 4.80 0.0516 16.90 17.70 0.0485 NNW- 1.35 3.80 0.0427 1.40 0.0152 0.40 0.0040 0.60 0.0060 6.20 1.40 0.0037 NNW-4.6 5.80 0.0659 6.70 0.0739 6.80 0.0740 7.20 0.0777 26.50 25.00 0.0684 13
AVERAGES 4.73 0.0534 5.51 0.0609 4.85 0.0530 6.08 0.0659 21.05 20.66 0.0575 Table 14 -- Environmental TLD Trend Location 2D01 2002 2003 2004 2005 % Diff 2005 2001-2004 % Diff :2005 to 2004 mR Avg to Average R1 19.55 16.75 19.60 18.9 20.1 6% 18.70 7%
R2 32.75 29.25 32.30 33.7 30.05 -11% 32.00 -6%
R3 22.65 19.60 24.15 23.2 23.25 0% 22.40 4%
R4 22.60 21.00 26.10 25.75 23.2 -10% 23.86 -3%
R5 N/A 15.40 19.05 21.9 4.95 -126% 18.78 -117%
R6 22.75 22.55 N/A 27.65 23.15 -18% 24.32 -5%
R7 17.40 16.95 18.25 18.7 8.4 :-76% 17.83 -72%
R8 27.15 23.80 24.10 25.5 23.7 -7% 25.14 -6%
R9 35.90 28.50 30.30 32.6 29.2 -11% 31.83 -9%
R10 .41.85 36.20 41.90 41 36 -13% 40.24 -11%
R11 29.80 22.75 26.15 29.45 25.65 -14% 27.04 -5%
R12 13.05 9.15 10.20 33.8 16 -71% 16.55 -3%
R13 39.90 31.30 55.40 37.25 35.25 -6% 40.96 -15%
R14 33.75 27.60 29.15 32.45 27.3 -17% 30.74 -12%
R15 .21.30 16.95 20.55 21.5 17 -23% 20.08 -17%
R16 32.05 25.40 28.35 28.55 28.4 -1% 28.59 -1%
R17 =28.25 27.00 29.45 31.3 28.85 -8% 29.00 -1%
R18 17.85 15.70 19.75 19.35 17.2 -12% 18.16 -5%
R19 :20.25 21.70 21.85 20.7 18.95 -9% 21.13 -11%
R20 _21.70 16.75 18.25 22.65 17.9 -23% 19.84 -10%
R21 :21.75 21.15 25.15 24.25 22.15 -9% 23.08 -4%
R22 :20.15 17.75 21.50 22 18.25 -19% 20.35 -11%
R23 17.95 18.95 16.60 18.85 17.3 -9% 18.09 -4%
R24 18.10 17.55 21.10 25.45 19.85 -25% 20.55 -3%
R25 17.20 19.00 17.30 19.5 22.65 15% 18.25 22%
R26 :23.50 25.80 N/A 20.5 18.7 -9% 23.27 -22%
R27 N/A 22.30 18.50 22.55 16.15 -33% 21.12 -27%
R28 18.05 16.20 20.85 14 15.6 11% 17.28 -10%
R29 :21.50 21.75 24.10 24.4 22.2 -9% 22.94 -3%
R30 N/A 25.45 22.45 28.35 23.3 -20% 25.42 -9%
R31 19.75 18.70 23.05 24.7 20.55 -18% 21.55 -5%
R32 :22.20 25.60 26.65 25.1 27.8 10% 24.89 11%
R33 10.15 13.10 13.40 14.75 13.75 -7% 12.85 7%
R34 :21.15 11.90 13.70 13.9 13.4 -4% 15.16 -12%
R35 =18.45 14.65 18.00 17.95 19.4 8% 17.26 12%
R36 24.95 25.50 25.60 28.55 26.5 -7% 26.15 1%
R37 '21.35 22.85 23.45 22.95 24.15 5% 22.65 6%
R38 .22.00 21.10 23.65 23.1 20.1 -14% 22.46 -11%
R39 17.45 19.20 21.35 24.2 16.95 -35% 20.55 -19%
R40 :23.75 19.20 23.451 20.9 24.45 16% 21.83 11%
R41 17.15 14.95 17.35 19.65 17.7 -10% 17.28 2%
R42 2.05 5.20 6.70 5.95 1.35 -126% 4.98 -115%
R43 29.45 23.95 30.40 30.9 24.95 -21% 28.68 _-14%
R5 - All reading low, elements could have been wet Legend: < 50% Lower R7 - All reading low, elements could have been wet .- 25% Higher R12 - AnomaloUs reading from 2004 _______
14
I R42 - Location consistently low - bad statistics this low lI I I 15
C. Airborne Program Air particulate and air iodine samples were collected each week from the eight monitoring locations described in Table 1 - Comanche Peak Steam Electric Station Radiological Monitoring Program for 2005. Each air particulate sample was collected by drawing air through a 47millimeter-diameter glass-fiber filter. Air iodine was collected by drawing air through a TEDA impregnated charcoal cartridge which was connected in series behind the air particulate filter. Shipped to an independent laboratory, air particulate filters were analyzed weekly for gross beta activity and were composited quarterly for gamma spectrometry analysis.
Charcoal cartridges were analyzed weekly for Iodine-1 31.
For the year 2005, a total of 416 air particulate filters were collected and analyzed for gross beta activity. The reported gross beta activity ranged from a minimum value of 9.90E-03 pCi/m3 to a maximum value of 9.65E02 pCi/m3. Table 4 - 2005 Environmental Airborne Particulate Gross Beta Results contains the reported values of all samples. There were no anomalies noted in the data reported for 2005 when compared to pre-operational and previous operational data. Graph I - 2005 Environmental Air Sample Gross Beta Results - Maximum and Minimum trends the weekly high and low gross beta values to show the seasonal variation of the results as well as providing indication of consistency between the individual monitoring locations.
A total of 416 charcoal cartridges were analyzed for airborne Iodine-131.
No Iodine-131 was detected at any of the eight monitoring locations.
Table 5 - 2005 Environmental Air Sample Iodine-I 31 Results contains the reported values of each Iodine-131 analysis, all of which are less than the required lower limit of detection (LLD).
All air particulate filters were collected and composited quarterly and then analyzed by gamma spectrometry. The gamma isotopic data is presented in Table 6 - 2005 Environmental Air Particulate Composite Gamma Isotopic Results. Typical of pre-operational and previous operational data results, the only radioactive nuclide identified in all the samples was cosmogenic Beryllium-7, a naturally occurring isotope.
During the year 2005, there were no exceptions to the Airborne Program.
A review of all the State of Texas air sample data indicated no anomalies.
16
Table 4 -- 2005 Environmental Airborne Particulate Gross Beta Results (Units of pCi/m3)
Location NW-1 .0 SWfWSW-0.95 SISSW-1.2 SW-1 2.3 SSE-4.5 E-3.5 N-1.45 N-9.4 Date Control Control 0110412005 1.26e-02 1.23e-02 1.34e-02 1.33e-02 1.38e-02 1.04e-02 9.90e-03 ,.36e-02 01/1112005 3.01e-02 2.48e-02 2.81 e-02 3.23e-02 3.13e-02 3.28e-02 2.93e-02 3.92e-02 01/1812005 3.51 e-02 3.25e-02 3.73e-02 4.46e-02 4.07e-02 4.00e-02 3.46e-02 3.82e-02 0112512005 4.42e-02 4.26e-02 4.14e-02 5.04e-02 4.66e-02 4.43e-02 3.49e-02 5.1 Ie-02 02101/2005 1.54e-02 1.94e-02 2.35e-02 1.74e-02 1.93e-02 1.93e-02 2.23e-02 2.36e-02 02/0812005 2.43e-02 3.04e-02 3.23e-02 2.35e-02 2.53e-02 2.55e-02 3.14e-02 2.30e-02 02/1512005 2.51 e-02 3.23e-02 4.19e-02 3.41 e-02 3.36e-02 3.36e-02 3.72e-02 3.23e-02 02122/2005 2.06e-02 2.49e-02 3.29e-02 2.31 e-02 2.28e-02 2.50e-02 2.43e-02 2.36e-02 0310112005 2.09e-02 2.44e-02 3.30e-02 2.25e-02 2.86e-02 2.41 e-02 2.93e-02 2.48e-02 03/08/2005 2.25e-02 2.61 e-02 3.25e-02 2.26e-02 2.61 e-02 2.90e-02 2.98e-02 2.53e-02 03115/2005 1.92e-02 2.29e-02 2.33e-02 2.06e-02 1.92e-02 1.97e-02 1.93e-02 2.28e-02 03122/2005 2.42e-02 2.48e-02 2.69e-02 2.07e-02 2.24e-02 1.96e-02 2.51 e-02 2.37e-02 03/2912005 1.94e-02 1 .77e-02 2.06e-02 1.87e-02 1.67e-02 1.89e-02 1.56e-02 'I.78e-02 04/0512005 2.66e-02 2.24e-02 2.31 e-02 2.28e-02 2.23e-02 2.24e-02 2.14e-02 2.01 e-02 04/12/2005 2.89e-02 2.61 e-02 3.09e-02 2.58e-02 2.26e-02 2.61 e-02 2.71 e-02 2.33e-02 0411912005 2.60e-02 2.42e-02 2.76e-02 2.46e-02 2.56e-02 2.32e-02 1.77e-02 2.35e-02 04/2612005 2.08e-02 1.98e-02 2.91e-02 2.54e-02 1.96e-02 2.13e-02 1.93e-02 'I.94e-02 05103/2005 3.06e-02 2.82e-02 3.73e-02 3.06e-02 2.71 e-02 3.06e-02 2.91 e-02 2.75e-02 05110/2005 2.86e-02 2.77e-02 3.31 e-02 2.78e-02 2.87e-02 2.77e-02 2.76e-02 2.52e-02 05/17/2005 3.1 9e-02 2.96e-02 3.25e-02 2.98e-02 2.70e-02 3.05e-02 3.11e-02 2.98e-02 05/24/2005 3.23e-02 3.24e-02 3.99e-02 3.32e-02 3.21 e-02 3.37e-02 3.15e-02 2.95e-02 05131/2005 2.65e-02 1.96e-02 2.52e-02 2.12e-02 2.08e-02 2.45e-02 1.78e-02 'I.86e-02 06107/2005 2.22e-02 2.08e-02 2.55e-02 2.44e-02 1.85e-02 2.04e-02 1.92e-02 1.59e-02 06114/2005 2.21 e-02 1.63e-02 2.02e-02 1.81 e-02 1.45e-02 1.72e-02 1.66e-02 I1.58e-02 06/21/2005 2.32e-02 2.51 e-02 2.98e-02 2.58e-02 2.50e-02 2.42e-02 1.91 e-02 2.50e-02 06/28/2005 4.34e-02 3.45e-02 3.22e-02 3.65e-02 3.20e-02 2.97e-02 3.16e-02 3.32e-02 07/05/2005 2.04e-02 1.75e-02 1.63e-02 2.30e-02 1.66e-02 2.09e-02 1.27e-02 'I.89e-02 07/12/2005 2.73e-02 1.98e-02 2.63e-02 2.90e-02 2.53e-02 2.58e-02 2.21 e-02 2.52e-02 07/19/2005 1.1 9e-02 1 .33e-02 1.92e-02 2.35e-02 1.33e-02 1.79e-02 1.70e-02 1.87e-02 07/26/2005 1.83e-02 1 .72e-02 1.79e-02 2.25e-02 1.41 e-02 2.1 Oe-02 1.56e-02 I.94e-02 08102/2005 2.51 e-02 2.42e-02 2.63e-02 3.01e-02 1.94e-02 2.50e-02 2.55e-02 2.81 e-02 08/09/2005 2.54e-02 2.67e-02 2.70e-02 3.23e-02 1.90e-02 2.57e-02 2.09e-02 3.03e-02 08116/2005 1.84e-02 1.55e-02 1.85e-02 2.18e-02 1.45e-02 2.02e-02 1.78e-02 1.98e-02 08123/2005 1.33e-02 1.52e-02 1.41e-02 1.85e-02 1.25e-02 1.96e-02 1.51 e-02 1.68e-02 0813012005 2.26e-02 1.88e-02 2.27e-02 2.65e-02 1.56e-02 2.49e-02 2.21 e-02 2.65e-02 09/06/2005 5.05e-02 3.56e-02 4.95e-02 6.11 e-02 3.40e-02 5.26e-02 4.94e-02 4.83e-02 09/13/2005 4.1 6e-02 3.47e-02 4.22e-02 4.68e-02 3.43e-02 4.53e-02 3.64e-02 3.89e-02 09/20/2005 1.93e-02 1.85e-02 1.75e-02 2.05e-02 1.46e-02 1.90e-02 1.66e-02 'I.94e-02 09/27/2005 3.07e-02 2.31 e-02 2.89e-02 3.58e-02 1.90e-02 2.49e-02 2.79e-02 :3.00e-02 10/04/2005 3.23e-02 2.59e-02 3.09e-02 3.81 e-02 1.89e-02 3.27e-02 3.00e-02 :3.1 4e-02 10/1112005 2.1 3e-02 2.04e-02 2.30e-02 2.59e-02 1.70e-02 2.21 e-02 1.69e-02 2.08e-02 10118/2005 5.26e-02 4.1 5e-02 5.56e-02 6.48e-02 3.58e-02 5.17e-02 4.67e-02 5.43e-02 10/2512005 3.64e-02 3.13e-02 3.81 e-02 4.16e-02 2.32e-02 3.62e-02 3.12e-02 :3.77e-02 11/01/2005 4.22e-02 3.42e-02 4.22e-02 5.09e-02 3.06e-02 4.39e-02 3.91e-02 4.38e-02 11/08/2005 3.1 8e-02 2.68e-02 3.40e-02 3.98e-02 2.35e-02 3.76e-02 2.79e-02 3.39e-02 11/15/2005 2.65e-02 1.98e-02 2.71 e-02 3.38e-02 2.13e-02 2.79e-02 2.66e-02 2.25e-02 11/22/2005 2.25e-02 2.72e-02 2.83e-02 3.25e-02 2.33e-02 2.67e-02 2.32e-02 2.92e-02 11/2912005 4.41 e-02 4.09e-02 3.64e-02 4.64e-02 3.45e-02 3.64e-02 3.02e-02 4.54e-02 12/06/2005 5.29e-02 4.89e-02 4.50e-02 5.58e-02 3.58e-02 4.89e-02 4.53e-02 4.87e-02 12/1312005 4.05e-02 4.26e-02 4.13e-02 4.80e-02 3.34e-02 4.46e-02 4.18e-02 5.05e-02 12/20/2005 7.32e-02 3.62e-02 2.86e-02 4.44e-02 3.57e-02 4.69e-02 3.67e-02 4.71 e-02 12/27/2005 9.65e-02 5.57e-02 4.23e-02 5.14e-02 4.24e-02 5.67e-02 4.35e-02 5.57e-02 Required LLD's 1.OOE-02 17
18 I .....
Table 5- 2005 Environmental Air Sample Iodine-131 Results (Units of pCi/m3)
NW-1.0 SWrwSW-o.95 SISSW-1.2 SW-12.3 SSE-4.5 E-3.5 N-1.45 N-9.4 Date Control Control 0110412005 <4.0e-02 <4.1 e-02 <4.1 e-02 <4.6e-02 <4.6e-02 <5.0e-02 <4.6e-02 <5.6e-02 0111112005 <3.9e-02 <3.9e-02 <4.3e-02 <3.0e-02 <3.6e-02 <3.7e-02 <4.9e-02 <4.6e-02 01/11B2005 <3.1e-02 <3.1 e-02 <3.9e-02 <2.7e-02 <2.9e-02 <4.5e-02 <3.9e-02 <3.7e-02 0112512005 <1.4e-02 <5.0e-02 <5.3e-02 <5.3e-02 <5.2e-02 <4.8e-02 <4.6e-02 <4.3e-02 0210112005 <2.9e-02 <4.2e-02 <3.9e-02 <4.4e-02 <4.4e-02 <3.0e-02 <4.4e-02 <4.4e-02 0210812005 <4.2e-02 <4.1Ie-02 <4.1 e-02 <3.9e-02 <3.5e-02 <3.1 e-02 <4.8e-02 <4.5e-02 0211512005 <4.Oe-02 <5.4e-02 <3.9e-02 <4.7e-02 <3.9e-02 <3.9e-02 <5.1 e-02 <4.9e-02 0212212005 <4.Oe-02 <4.1le-02 <3.4e-02 <5.0e-02 <4.4e-02 <4.6e-02 <4.4e-02 <4.2e-02 0310112005 <4.8e-02 <3.5e-02 <4.9e-02 <4.4e-02 <4.8e-02 <3.5e-02 <5.0e-02 <4.4e-02 03/0812005 <4.5e-02 <4.2e-02 <3.2e-02 <4.7e-02 <3.6e-02 <3.6e-02 <5.6e-02 <4.0e-02 0311512005 <3.7e-02 <3.9e-02 <5.7e-02 <3.7e-02 <4.6e-02 <4.8e-02 <4.2e-02 <3.5e-02 03/2212005 <4.3e-02 <3.5e-02 <4.4e-02 <3.4e-02 <4.4e-02 <3.ge-02 <4.8e-02 <3.4e-02 03129/2005 <.5e-02 <3.0e-02 <2.8e-02 <2.5e-02 <3.1e-02 <3.1 e-02 <3.1 e-02 <2.6e-02 0410512005 <4.4e-02 <4.7e-02 <3.7e-02 <4.4e-02 <3.7e-02 <4.3e-02 <4.9e-02 <4.4e-02 04112/2005 <4.1e-02 <3.3e-02 <3.le-02 <3.4e-02 <3.6e-02 <4.6e-02 <4.0e-02 <4.5e-02 04/1912005 <4.3e-02 <4.4e-02 <2.6e-02 <3.9e-02 <4.4e-02 <4.7e-02 <3.6e-02 <4.3e-02 04126/2005 <4.1e-02 <2.4e-02 <4.5e-02 <4.2e-02 <4.4e-02 <4.4e-02 <3.8e-02 <4.8e-02 0510312005 <3.2e-02 <3.5e-02 <3.9e-02 <3.7e-02 <3.7e-02 <4.4e-02 <4.0e-02 <4.4e-02 05/1012005 <1.6e-02 <4.0e-02 <3.7e-02 <4.7e-02 <4.4e-02 <4.7e-02 <4.5e-02 <3.9e-02 0511712005 <3.6e-02 <3.3e-02 <3.5e-02 <4.2e-02 <3.7e-02 <2.8e-02 <3.3e-02 <3.8e-02 05/2412005 <4.6e-02 <4.2e-02 <4.4e-02 <3.7e-02 <4.2e-02 <4.6e-02 <4.0e-02 <5.1e-02 05/3112005 <1.3e-02 <4.7e-02 <4.9e-02 <4.7e-02 <4.0e-02 <4.0e-02 <4.9e-02 <4.6e-02 0610712005 <4.3e-02 <3.8e-02 <3.6e-02 <3.8e-02 <2.7e-02 <3.8e-02 <4.1e-02 <3.2e-02 0611412005 <.3.4e-02 <3.2e-02 <2.8e-02 <4.0e-02 <3.5e-02 <4.4e-02 <3.9e-02 <3.7e-02 0612112005 <4.Oe-02 <3.6e-02 <4.0e-02 <4.1 e-02 <4.6e-02 <3.6e-02 <4.1 e-02 <3.8e-02 06/28/2005 <4.6e-02 <3.6e-02 <3.7e-02 <3.9e-02 <3.4e-02 <3.9e-02 <4.6e-02 <4.2e-02 0710512005 <4.Oe-02 <2.8e-02 <4.0e-02 <4.3e-02 <4.5e-02 <3.5e-02 <3.0e-02 <4.2e-02 07/1212005 <:3.9e-02 <3.8e-02 <4.1 e-02 <4.4e-02 <3.3e-02 <3.6e-02 <3.5e-02 <4.6e-02 07/19/2005 <4.8e-02 <3.7e-02 <3.9e-02 <3.7e-02 <4.0e-02 <3.9e-02 <3.3e-02 <2.9e-02 07126/2005 <4.3e-02 <3.8e-02 <4.9e-02 <4.6e-02 <3.2e-02 <4.0e-02 <4.0e-02 <4.1e-02 08/0212005 <4.2e-02 <4.3e-02 <3.4e-02 <5.0e-02 <3.4e-02 <3.6e-02 <4.7e-02 <3.2e-02 0810912005 <3.5e-02 <3. 8e-02 <3.5e-02 <4.1 e-02 <3.4e-02 <3.5e-02 <3.2e-02 <2.9e-02 0811612005 <3.4e-02 <3.1 e-02 <3.5e-02 <3.4e-02 <4.2e-02 <3.7e-02 <2.6e-02 <4.2e-02 08123/2005 <4.Oe-02 <3.6e-02 <3.6e-02 <3.4e-02 <3.2e-02 <4.2e-02 <3.6e-02 <3.9e-02 0813012005 <3.6e-02 <4.4e-02 <3.9e-02 <3.0e-02 <3.9e-02 <3.7e-02 <4.7e-02 <4.2e-02 09106/2005 <:3.8e-02 <3.8e-02 <3.5e-02 <4.1 e-02 <3.7e-02 <3.3e-02 <3.1 e-02 <4.1 e-02 0911312005 <4.5e-02 <3.8e-02 <3.9e-02 <4.4e-02 <4.0e-02 <4.4e-02 <4.6e-02 <4.8e-02 09/2012005 <:3.8e-02 <4.5e-02 <4.3e-02 <4.6e-02 <3.6e-02 <4.5e-02 <3.1 e-02 <4.1 e-02 09127/2005 <4.9e-02 <4.2e-02 <4.3e-02 <4.5e-02 <4.3e-02 <4.7e-02 <5.1e-02 <5.2e-02 1010412005 <3.2e-02 <4.0e-02 <4.0e-02 <3.4e-02 <3.6e-02 <4.4e-02 <4.4e-02 <3.8e-02 1011112005 <4.1e-02 <4.3e-02 <3.8e-02 <4.6e-02 <3.8e-02 <4.2e-02 <3.8e-02 <2.8e-02 10/1812005 <5.7e-02 <6.2e-02 <5.5e-02 <3.7e-02 <4.7e-02 <5.3e-02 <6.3e-02 <4.1e-02 10125/2005 <5.2e-02 <3.8e-02 <3.2e-02 <4.6e-02 <4.5e-02 <4.8e-02 <4.6e-02 <4.0e-02 11101/2005 <3.4e-02 <4.2e-02 <4.0e-02 <3.8e-02 <3.7e-02 <3.5e-02 <4.2e-02 <4.5e-02 1110812005 :3.1 e-02 <4.6e-02 <4.5e-02 <4.5e-02 <5.6e-02 <4.2e-02 <4.3e-02 <4.2e-02 1111512005 <5.3e-02 <3.4e-02 <4.5e-02 <3.4e-02 <4.3e-02 <3.4e-02 <4.2e-02 <4.4e-02 1112212005 <4.1 e-02 <4.2e-02 <3.5e-02 <3.9e-02 <4.1e-02 <4.2e-02 <3.8e-02 <4.3e-02 1112912005 <4.3e-02 <4.2e-02 <3.8e-02 <5.0e-02 <4.4e-02 <4.2e-02 <4.3e-02 <4.7e-02 1210612005 <4.3e-02 <5.1 e-02 <4.3e-02 <5.3e-02 <4.7e-02 <4.4e-02 <3.9e-02 <4.0e-02 1211312005 <4.3e-02 <4.6e-02 <4.8e-02 <5.3e-02 <3.8e-02 <5.0Oe-02 <5.8e-02 <5.3e-02 12120/2005 <3.4e-02 <4.3e-02 <4.8e-02 <4.4e-02 <4.8e-02 <4.3e-02 <4.3e-02 <3.5e-02 12127/2005 <4.2e-02 <4.8e-02 <4.4e-02 <5.4e-02 <4.8e-02 <5.5 e-02 <4.3e-02 <4.3e-02 Required LLD 7.DOE-02 19
Table 6 - 2005 Environmential Air Partiriflatt Crmnnqite rammn entnno!c Pesou!ts (Units of pCI/m3)
Location NW-1.0 SWMWSW-0.95 SSW-1.2 SW-12.3 SSE-4.5 E-3.5 N-1.45 N-9.4 Nuclides Control Control Be-7 1.06E-01 1.05E-01 1.19E-01 1.13E-01 8.10E-02 1.29E-01 1.002-01 1.04E-01 K-40 <2.7E-02 <4.2E-02 <3.3E-02 <3.OE-02 <3.3E-02 <3.5E-02 <3.2E-02 <2.3E-02 Mn-54 <2.5E-03 <2.5E-03 <3.1 E-03 <2.9E-03 <3.3E-03 <2.2E-03 <1.6E-03 <1.6E-03 Co-57 <1.5E-03 <1.5E-03 <1.1E-03 <1.2E-03 <1.3E-03 <1.4E-03 <6.1 E-04 <6.9E-04 Composite Dates Co-58 <3.7E-03 <4.6E-03 <3.7E-03 <2.9E-03 <4.8E-03 <5.1 E-03 <2.9E-03 <3.8E-03 1ST QTR Fe-59 <1.5E-02 <1.6E-02 <7.8E-03 <9.9E-03 <1.1E-02 <1.1 E-02 <1.2E-02 <4.6E-03 O1(04105-03129105 Co-60 <3.1 E-03 <3.5E-03 <2.7E-03 <2.7E-03 <3.1 E-03 <2.1 E-03 <3.3E-03 <2.9E-03 Zn-65 <5.8E-03 <5.8E-03 <6.5E-03 <4.OE-03 <6.5E-03 <7.6E-03 <6.0E-03 <6.8E-03 Zr-95 <6.6E-03 <9.5E-03 <8.7E-03 <8.2E-03 <6.OE-03 <7.2E-03 <5.2E-03 <6.8E-03 Nb-95 <6.2E-03 <7.3E-03 <1.0E-02 <8.6E-03 <6.2E-03 <8.2E-03 <5.9E-03 <9.6E-03 Cs-134 <2.4E-03 <2.6E-03 <2.6E-03 <2.8E-03 <2.4E-03 <1.8E-03 <2.7E-03 <1.7E-03 Required LLD 5.0e-2 Cs-137 <2.8E-03 <2.0E-03 <2.2E-03 <2.6E-03 <3.1 E-03 <2.OE-03 <1.7E-03 <2.OE-03 Required LLD 6.0e-2 Ba-140 <3.7E-02 <4.6E-02 <5.4E-02 <3.7E-02 <3.7E-02 <4.7E-02 <1.3E-02 <3.8E-02 La-140 <4.2E-02 <5.3E-02 <6.2E-02 <4.2E-02 <4.2E-02 <5.3E-02 <1.5E-02 <4.4E-02 Be-7 1.59E-01 1.43E-01 1.95E-01 1.77E-01 1.33E-01 9.50E-02 1.53E-01 1.39E-01 K-40 <3.3E-02 <3.5E-02 <3.2E-02 <2.7E-02 <3.2E-02 <3.9E-02 <3.5E-02 <3.5E-02 Mn-54 <1.5E-03 <3.4E-03 <2.6E-03 <1.8E-03 <2.1 E-03 <1.5E-03 <1.5E-03 <3.1 E-03 Co-57 <1.5E-03 <1.6E-03 <1.2E-03 <1.5E-03 <1.6E-03 <1.3E-03 <1.5E-03 <1.4E-03 Co-58 <5.3E-03 <3.2E-03 <3.7E-03 <3.2E-03 <4.8E-03 <4.8E-03 <5.4E-03 <5.4E-03 2ND QTR Fe-59 <3.5E-03 <1.5E-02 <1.2E-02 <1.5E-02 <9.4E-03 <1.4E-02 <1.4E-02 <1.2E-02 03130105.r06128105 Co-60 <2.2E-03 <2.7E-03 <2.7E-03 <3.1 E-03 <3.5E-03 <7.4E-04 <3.8E-03 <2.7E-03 Zn-65 <6.9E-03 <5.2E-03 <5.2E-03 <7.9E-03 <6.OE-03 <1.5E-03 <6.7E-03 <7.4E-03 Zr-95 <8.4E-03 <8.8E-03 <1.0E-02 <8.2E-03 <7.5E-03 <9.4E-03 <9.4E-03 <8.2E-03 Nb-95 <8.7E-03 <9.7E-03 <1.OE-02 <7.7E-03 <9.7E-03 <1.IE-02 <8.5E-03 <9.8E-03 Cs-134 <2.4E-03 <3.3E-03 <1.9E-03 <3.1E-03 <3.3E-03 <2.4E-03 <3.1E-03 <2.6E-03 Required LLD 5.0e-2 Cs-137 <2.5E-03 <3.3E-03 <2.0E-03 <2.0E-03 <2.7E-03 <2.5E-03 <1.4E-03 <3.OE-03 Required LLD 6.0e-2 Ba-140 <8.9E-02 <6.9E-02 <2.5E-02 <6.9E-02 <8.7E-02 <8.7E-02 <8.7E-02 <1.0E-01 La-140 <1.OE-01 <7.9E-02 <2.9E-02 <7.9E-02 <1.0E-01 <1.OE-01 <1.0E-01 <1.2E-01 20
Table 6 - 2005 Environmental Air Particulate Comnonite Gamma Iontnnkt RPqifltn IrontiniiAdr (Units of pCilm3)
Location NW-1.0 SWJWSW-0.95 SSW-1.2 SW-12.3 SSE-4.5 E-3.5 N-1.45 N-9.4 Nuclides Control Control Be-7 1.49E-01 5.30E-02 1.66E-01 1.61E-01 1.36E-01 1.55E-01 1.68E-01 1.96E-01 K-40 <3.7E-02 <3.5E-02 <3.5E-02 <3.3E-02 <3.7E-02 <3.5E-02 <3.3E-02 <3.5E-02 Mn-54 <3.4E-03 <3.1 E-03 <2.5E-03 <2.9E-03 <2.9E-03 <3.9E-03 <2.5E-03 <2.9E-03 Co-57 <1.7E-03 <1.4E-03 <1.4E-03 <1.4E-03 <1.4E-03 <1.5E-03 <1.4E-03 <1.6E-03 Composite Dates Co-58 <4.8E-03 <3.9E-03 <3.9E-03 <5.9E-03 <4.3E-03 <4.3E-03 <4.6E-03 <4.6E-03 3RD QTR Fe-59 <9.OE-03 <1.3E-02 <1.1E-02 <1.3E-02 <1.IE-02 <1.IE-02 <1.5E-02 <1.5E-02 07105105-091271OS Co-60 <3.6E-03 <2.1 E-03 <3.5E-03 <2.1 E-03 <2.1 E-03 <3.1 E-03 <3.5E-03 <4.4E-03 Zn-65 <6.9E-03 <5.9E-03 <6.6E-03 <5.9E-03 <4.OE-03 <5.1E-03 <7.2E-03 <5.9E-03 Zr-95 <8.7E-03 <6.4E-03 <8.3E-03 <7.1 E-03 <1.OE-02 <5.5E-03 <7.1 E-03 <4.4E-03 Nb-95 <7.4E-03 <7.2E-03 <8.9E-03 <8.4E-03 <1.1E-02 <7.8E-03 <1.1E-02 <1.1E-02 Cs-I 34 <3.1 E-03 <2.1 E-03 <2.6E-03 <2.4E-03 <2.4E-03 <3.3E-03 <2.1E-03 <2.6E-03 Required LLD 5.0e-2 Cs-137 <2.OE-03 <3.1E-03 <2.9E-03 <3.1E-03 <2.5E-03 <2.4E-03 <2.4E-03 <2.6E-03 Required LLD 6.0e-2 Ba-140 <5.5E-02 <7.7E-02 <9.4E-02 <1.9E-02 <5.3E-02 <1.9E-02 <1.9E-02 <5.3E-02 La-140 <6.3E-02 <8.9E-02 <1.1E-01 <2.2E-02 <6.1E-02 <2.2E-02 <2.2E-02 <6.1E-02 Be-7 1.74E-01 1.38E-01 9.70E-02 1.84E-01 1.27E-01 1.85E-01 1.14E-01 1.91E-01 K-40 <3.OE-02 <3.9E-02 <3.5E-02 <3.2E-02 <3.7E-02 <2.9E-02 <3.7E-02 <3.2E-02 Mn-54 <3.OE-03 <2.6E-03 <2.3E-03 <3.4E-03 <3.2E-03 <3.4E-03 <3.4E-03 <2.3E-03 Co-57 <1.4E-03 <1.4E-03 <1.3E-03 <1.4E-03 <1.5E-03 <1.4E-03 <1.5E-03 <1.4E-03 Co-58 <4.6E-03 <3.8E-03 <4.6E-03 <5.4E-03 <4.4E-03 <5.1 E-03 <5.1 E-03 <3.4E-03 4TH QTR Fe-59 <1.4E-02 <1.5E-02 <1.5E-02 <1.7E-02 <1.5E-02 <1.7E-02 <2.6E-02 <1.3E-02 10/04105-l2J27/05 Co.60 <3.1 E-03 <2.7E-03 <2.1 E-03 <3.1 E-03 <3.1 E-03 <7.4E-04 <3.8E-03 <4.4E-03 Zn-65 <6.8E-03 <7.4E-03 <8.OE-03 <8.6E-03 <7.5E-03 <7.4E-03 <8.1E-03 <5.3E-03 Zr-95 <7.8E-03 <7.8E-03 <8.5E-03 <8.8E-03 <8.7E-03 <9.4E-03 <9.4E-03 <8.7E-03 Nb-95 <1.1 E-02 <1.3E-02 <9.5E-03 <1.3E-02 <1.3E-02 <1.1 E-02 <1.OE-02 <1.1E-02 Cs-134 <2.4E-03 <2.7E-03 <3.OE-03 <2.5E-03 <2.5E-03 <3.5E-03 <2.3E-03 <2.5E-03 Required LLD 5.Oe-2 Cs-137 <2.2E-03 <2.OE-03 <2.5E-03 <2.5E-03 <2.OE-03 <2.7E-03 <2.8E-03 <2.2E-03 Required LLD 6.0e-2 Ba-140 <1.1 E-01 <3.1 E-02 <1.4E-01 <3.5E-02 <9.5E-02 <1.4E-01 <2.OE-01 <9.5E-02 La-140 <1.2E-01 <3.5E-02 <1.6E-01 <4.OE-02 <1.1E-01 <1.6E-01 <2.2E-01 <1.1E-01 21
D. Surfacc Water Prograni Surface water monitoring stations are found at four locations as detailed in Table I - Comanche Peak Steam Electric Station Radiological Environmental Monitoring Program. Location N- 1.5 provides samples representative of Squaw Creek reservoir surface water at a location beyond significant influence of the plant discharge. Location ESE-1.4 provides samples representative of discharges from Squaw Creek reservoir downstream to Squaw Creek and to Lake Granbury via an installed return line. [NOTE: The installedreturn line to Lake Granburyhas never been Used to sendwater back to Lake Granbury.] Location NE-7.4 provides samples of Lake Granbury surface water downstream of the discharge from the return line from Squaw Creek reservoir. A control sample is obtained from the Brazos River, upstream of Lake Granbury at location N-19.3. Surface water samples from Squaw Creek reservoir locations were collected weekly and composited for monthly gamma isotopic analysis.
Samples from Lake Granbury locations were collected monthly and analyzed by gamma spectrometry. All surface water samples were also composited quarterly by location for tritium analysis.
For the year 2005, all surface water samples were collected as required.
Table 7 -- 2005 Environmental Surface Water Tritium and Gamma Isotopic Results contains the reported values. Forty-eight samples were analyzed by gamma spectrometry. All results for the required radionuclides were reported as less than the required LLDs. Sixteen quarterly composited samples were analyzed for tritium. The results of the reported tritium values for Squaw Creek reservoir were in line with expected concentrations. The tritium values ranged from a high of 1.60e+04 pCi/I to a low of 1.1 8e+04 pCi/l. The results from Lake Granbury were all less than the required LLDs as expected. The tritium concentration reported in Squaw Creek is well below the action level of 3.0e+4 pCi/l and is following the expected concentration variations based on fuel cycles, power histories and reservoir makeup due to rain and pump transfers from Lake Granbury. Graph 2 - 2005 Environmental Surface Water Tritium Results indicates the current results and the short-term trend of the tritium concentration in Squaw Creek reservoir. The tritium value varies only slightly and is leveling off which possibly indicates that equilibrium may have been reached or soon will be reached. Graph 3 -
Squaw Creek Maximum Tritium Values trends the reservoir tritium concentration since it was first detected in 1990 after Unit I startup. This long-term graph also indicates that equilibrium concentrations may have been obtained. Squaw Creek reservoir tritium is a direct product of the operation of CPSES and is the only consistent indicator detectable in the environment surrounding Comanche Peak. There should not be any significant changes in the tritium concentrations in the near future and no action levels are anticipated. A review of pre-operational and operational data indicated the 2005 results were both expected and consistent with previous data and that no anomalies had occurred.
22
For the year 2005, there was one exception to the Surface Water Program.
Samples for locations ESE-1.4 and N-1.5 composited on 11/29/05 leaked during shipment and were mixed. Samples were analyzed and reported as a mixture. Smart Form 2005-004864 was written to address this issue.
23
Table 7 - 2006 Environmental Surface Water Tritium and Gamma Isotopic Results (Units of pCIII)
H-3 Nuclides Date Location Be-7 K-40 Mn-54 Co-58 Fe-59 Co-6o Zn-65 Zr-9S Nb-95 1.131 Cs-134 Cs-137 Ba-140 La-140 01125105 ESE-1.4 <3.0E+01 2.1 0E+01 <3.2E+00 <3.8E+00 <9.5E+00 <3.0E+00 <7.5E+00 <5.3E+00 <3.9E+00 <1.4E+01 <3.6E+00 <3.2E+00 <6.3E+00 <7.3E+00 02122105 ESE-1.4 <3.1E+01 <4.6E+01 <2.9E+00 <3.2E+00 <9.3E+00 <2.8E+00 <6.1E+00 <5.8E+00 <4.3E+00 <1.5E+01 <2.9E+00 <2.7E+00 <9.5E+00 <1.1E+01 03129105 ESE-1.4 1.18E+04 <1.4E+01 <2.5E+01 <1.5E+Of c1 .7F+QQ <4 AF+nn <1_5E+f <33E+0_
04126105 ESE-1.4 <1.5E+01 2.10E+01 e3.2E400 e2.42&00 e9.9E-00 I.6EE00 ' 1.3E+0 - 5.2E+00 -6.S-SS-
<1.7E+00 <1.6E+00 <5.8E+00 <1.7E+00 <3.7E+00 <2.8E+00 <2.0E+00 <7.3E+00 <1.5E+00 <1.5E+00 05131105 ESE-1.4 <2.2E+01 <4.8E+00 <5.5E+00 4.20E+01 <2.3E+00 <2.7E+00 <7.4E+00 <2.3E+00 <5.7E+00 <4.8E+00 <3.7E+00 <1.2E+01 <2.5E+00 <2.2E+00 <7.1E+00 <8.1E+00 06/28105 ESE-1.4 1.48E+04 <2.7E+01 2.70E+01 <2.7E+00 <3.3E+00 <9.1 E+00 <3.3E+00 <6.9E+00 <6.2E+00 <4.6E+00 <1.4E+01 <3.4E+00 <2.6E+00 <7.2E+00 <8.3E+00 07/26/05 ESE-1.4 <2.4E+01 <5.0E+01 <3.1E+00 <3.1E+00 <8.3E+00 <3.2E+00 <6.1E+00 <4.7E+00 <3.2E+00 <8.3E+00 <3.0E+00 <2.8E+00 <7.1 E+00 <8.1 E+00 08130105 ESE-1.4 <2.6E+01 <4.0E+01 <2.4E+00 <2.7E+00 <7.8E+00 <3.1 E+00 <5.7E+OO <4.8E+00 <3.6E+00 <1.5E+01 <2.5E+00 <2.2E+00 <7.6E+00 <8.7E+00 09127105 ESE-1.4 1.25E+04 <3.1 E+01 <4.8E+01 <2.8E+00 <2.9E+00 <8.0E+00 <3.4E+00 <6.5E+00 <5.9E+00 <3.7E+00 <1.3E+01 <3.0E+00 <2.6E+00 <7.3E+00 <8.4E+00 10125/05 ESE21.4 <2.4E+01 2.40E+01 <3.0E+00 <3.4E+00 <7.1 E+00 <3.0E+00 <6.4E+00 <5.6E+00 <4.02+00 <1.OE+01 <2.7E+00 <2.8E+00 <8.5E+00 <9.8E+00 11129105 ESE-1.4 <2.3E+01 <3.8E+01 <2.3E+00 <2.7E+00 <5.9E+00 <2.3E+00 <7.8E+00 <4.5E+00 <4.5E+00 <1.4E+01 <2.4E+00 <2.1E+00 <8.1E+00 <9.3E+00 12127105 ESE-1.4 1.18E+04 <8.7E+00 1.47E+01 <7.5E-01 <8.7E-01 <2.1E+00 <9.9e-01 <2.6E+00 <1.6E+00 <1.7E+00 <7.5E+00 <8.3E-01 <7.9E-01 <3.4E+00 <3.9E+00 01125105 N-1.5 <2.5E+01 <4.3E+01 <2.7E+00 <3.2E+00 <9.5E+00 <2.9E+00 <6.5E+00 <5.1E+00 <3.3E+00 <1.4E+01 <2.6E+00 <2.9E+00 <8.9E+00 <1.0E+01 02122105 N-1.5 <2.9E+01 <4.8E+01 <3.3E+00 <3.4E+00 <9.3E+00 <3.8E+00 <6.3E+00 <5.7E+00 <4.5E+00 <1.4E+01 <3.5E+00 <3.0E+00 <8.4E+00 <9.6E+00 03129105 N-1.5 1.27E+04 <1.6E+01 <2.2E+01 <1.4E+00 <1.6E+00 <4.9E+00 <1.4E+00 <3.2E+00 <2.6E+00 <2.0E+00 <1.1E+01 <1.4E+00 <1.4E+00 <5.1E+00 <5.9E+00 04126105 N-1.5 <2.5E+01 <3.6E+01 <2.7E+00 <2.6E+00 <8.7E+00 <2.5E+00 <9.2E+OO <5.2E+00 <3.5E+00 <1.52+01 <2.6E+00 <2.4E+00 <7.0E+00 <8.0E+00 05131105 N-1.5 <2.2E+01 <3.5E+01 <2.3E+00 <2.5E+00 <7.5E+00 <2.4E+00 <5.3E+00 <4.5E+00 <3.2E+00 <1.2E+01 <2.4E+00 <2.3E+00 <7.4E+00 <8.5E+00 06128105 N-1.5 1.60E+04 <2.7E+01 <4.1 E+01 <2.9E+00 <2.9E+00 <9.2E+00 <2.6E+00 <6.8E+00 <5.0E+00 <3.6E+00 <1.4E+01 <3.0E+00 <2.9E+00 <8.9E+00 <1.0E+01 07126105 N-1.5 <2.2E+01 <4.5E+01 <2.6E+00 <3.0E+00 <7.9E+00 <3.0E+00 <6.5E+00 <4.7E+00 <3.8E+00 <8.4E+00 <2.9E+00 <2.7E+00 <6.1E+00 <7.1E+00 08130105 N-1.5 <2.1 E+01 2.60E+01 <2.3E+00 <2.6E+00 <7.0E+00 <2.3E+00 <5.3E+00 <4.6e+00 <3.3E+00 <1.4E+01 <2.4E+00 <2.2E+00 <7.5E+00 <8.7E+00 09127105 N-1.5 1.22E+04 <2.5E+01 <4.3E+01 <2.5E+00 <2.9E+00 <9.5E+00 <2.5E+00 <6.7E+00 <4.6E+00 <3.4E+00 <1.3E+01 <2.8E+00 <2.9E+00 <7.4E+00 <8.5E+00 10125105 N-1.5 <3.1E+01 <4.6E+01 <3.0E+00 <3.7E+00 <7.3E+00 <3.4E+00 <7.6E+00 <5.2E+00 <4.0E+00 <1.5E+01 <3.0E+00 <3.2E+00 <8.2E+00 <9.5E+00 11129105 N-1.5 <1.1 E+01 <2.0E+01 <1.2E+00 <1.3E+00 <2.8E+00 <1.1 E+00 <4.2E+00 <2.5E+00 <2.4E+00 <8.4E+00 <1.2E+00 <1.2E+00 <4.2E+00 <4.8E+00 12/27105 N-1.5 1.26E+04 <2.OE+01 <3.3E+01 <1.9E+00 <2.2E+00 <5.2E+00 <1.9E+00 <4.7E+00 <3.8E+00 <3.1E+00 <1.3E+01 <2.4E+00 <1.6E+00 <8.7E+00 <1.0E+01 01125t05 NE-7.4 <2.3E+01 <4.9E+01 <3.1 E+00 <3.1 E+00 <1.1 E+01 <3.8E+00 <8.5E+00 <6.2E+00 <4.3E+00 <6.0E+00 <4.3E+00 <3.4E+00 <4.4E+00 <5.1E+00 02/22105 NE-7.4 <3.9E+01 <7.0E+01 <5.0E+00 <4.4E+00 <1.7E+01 <5.8E+00 <1.3E+01 <8.8E+00 <5.5E+00 <9.1E+00 <5.7E+00 <5.1E+00 <7.1E+00 <8.2E+00 03/29105 NE-7.4 <9.5E+02 <5.1 E+01 <7.4E+01 <5.7E+00 <6.4E+00 <1.6E+01 <6.9E+00 <1.2E+01 <9.9E+00 <6.9E+00 <9.OE+00 <5.6E+00 <4.1E+00 <9.8E+00 <1.1E+01 04126105 NE-7.4 <4.6E+01 <8.6E+01 <5.5E+00 <7.2E+00 <1.6E+01 <8.5E+00 <1.2E+01 <1.2E+01 <6.4E+00 <1.OE+01 <5.9E+00 <5.4&+00 <8.7E+00 <1.0E+01 05131105 NE-7.4 <3.8E+01 <7.3E+01 <4.5E+00 <4.5E+00 <1.8E+01 <5.4E+00 <1.2E+01 <8.5E+00 <4.9E+00 <9.OE+00 <5.1E+00 <4.4E+00 <1.OE+01 <1.2E+01 06128105 NE-7.4 <1.3E+03 <3.3E+01 <6.8E+01 <3.7E+00 <4.3E+00 <1.4E+01 <5.1 E+00 <9.6E+00 <7.4E+00 <4.6E+00 <7.6E+00 <4.9E+00 <4.0E+00 <7.8E+00 <9.OE+00 07126105 NE-7.4 <2.9E+01 <6.3E+01 <3.9E+00 <3.8E+00 <1.2E+01 <3.7E+00 <7.4E+OO <6.6E+00 <3.9E+00 <7.4E+00 <3.7E+00 <3.4E+00 <6.1E+00 <7.1E+00 08/30105 NE-7.4 <8.0E+01 <1.1 E+02 <9.5E+00 <8.8E+00 <2.5E+01 <9.7E+00 <2.2E+01 <1.4E+01 <1.1E+01 <1.4E+01 <8.9E+00 <9.3E+00 <1.3E+01 <1.5E+01 09/27/05 NE-7.4 <1.2E+03 <2.7E+01 <5.3E+01 <3.2E+00 <3.1E+00 <7.1E+00 <3.6E+00 <7.4E+00 <5.6E+00 <3.5E+00 <8.9E+00 <3.3E+00 <3.7E+00 <7.7E+00 <8.9E+00 10125105 NE-7.4 <5.OE+01 <9.2E+01 <7.1E+00 <6.2E+00 <1.4E+01 <6.3E+00 <1.5E+01 <9.1E+00 <6.6E+00 <9.6E+00 <6.9E+00 <5.0E+00 <1.2E+01 <1.4E+01 11129105 NE-7.4 <5.1E+01 <1.1 E+02 <6.7E+00 <6.8E+00 <1.5E+01 <6.2E+00 <2.8E+01 <1.1E+01 <8.7E+00 <1.2E+01 <7.2E+00 <5.8E+00 <1.2E+01 <1.3E+01 12127105 NE-7.4 <1.4E+03 <5.2E+01 <6.6E+01 <5.1E+00 <4.9E+00 <1.1E+01 <6.6E+00 <1.2E+01 <7.9E+00 <7.3E+00 <1.3E+01 <5.5E+00 <5.2E+00 <1.1E+01 <1.3E+01 01125105 N-19.3 <3.4E+01 <4.6E+01 <3.1 E+00 <3.1 E+00 <7.9E+00 <3.7E+00 <8.9E+OO <4.9E+00 <3.2E+00 <7.1E+00 <3.8E+00 <3.4E+00 <4.8E+00 <5.5E+00 02122105 N-19.3 <4.4E+01 <6.7E+01 <5.9E+00 <6.0E+00 <1.3E+01 <6.5E+00 <1.5E+01 <1.1E+01 <5.9E+00 <9.5E+00 <5.6E+00 <5.2E+00 <8.8E+00 <1.0E+01 03129105 N-19.3 <9.5E+02 <3.8E+01 <5.7E+01 <4.6E+00 <4.4E+00 <1.3E+01 <5.1E+00 <1.1E+01 <6.8E+00 <4.9E+00 <9.OE+00 <4.3E+00 <4.4E+00 <8.4E+00 <9.7E+00 04/26/05 N-19.3 <4.0E+01 <1.OE+02 <5.2E+00 <5.0E+00 <1.9E+01 <6.9E+00 <1.7E+01 <1.4E+01 <6.6E+00 <8.3E+00 <6.9E+00 <5.3E+00 <1.3E+01 <1.4E+01 05/31105 N-19.3 <3.8E+01 <8.6E+01 <5.6E+00 <5.2E+00 <1.5E+01 <5.5E+00 <1.3E+01 <8.9E+00 <6.4E+00 <8.3E+00 <5.6E+00 <5.4E+00 <9.9E+00 <1.1E+01 06/28105 N-19.3 <1.2E+03 <5.4E+01 <9.8E+01 <5.4E+00 <6.1E+00 <1.4E+01 <7.0E+00 <1.2E+01 <1.2E+01 <8.0E+00 <1.1E+01 <5.9E+00 <5.9E+00 <9.2E+00 <1.1E+01 07/26/05 N-19.3 <2.2E+01 <4.4E+01 <2.7E+00 <2.6E+00 <7.4E+00 <2.9E+00 <6.3E+00 <4.9E+00 <3.0E+00 <5.3E+00 <3.0E+00 <2.8E+00 <4.6E+00 <5.2E+00 08/30105 N-19.3 <4.6E+01 <7.9E+01 <5.6E+00 <5.9E+00 <1.5E+01 <5.0E+00 <1.4E+01 <1.0E+01 <6.2E+00 <1.0E+01 <5.9E+00 <5.9E+00 <9.9E+00 <1.1E+01 09127105 N-19.3 <1.2E+03 <2.8E+01 <5.7E+01 <3.4E+00 <3.6E+00 <8.1 E+00 <3.8E+00 <7.8E+00 <4.9E+00 <4.22+00 <7.7E+00 <3.5E+00 <3.3E+00 <8.2E+00 <9.4E+00 10/25/05 N1-19.3 <4.9E+01 <9.1E+01 <6.4E+00 <6.7E+00 <1.3E+01 <6.7E+00 <1.4E+01 <1.0E+01 <7.7E+00 <1.2E+01 <7.0E+00 <6.2E+00 <1.2E+01 <1.4E+01 11129/05 N-19.3 <5.6E+01 <8.7E+01 <6.1E+00 <6.9E+00 <1.3E+01 <6.0E+00 <1.8E+01 <1.0E+01 <6.6E+00 <1.4E+01 <6.2E+00 <6.1E+00 <1.0E+01 <1.2E+01 42.12V7f !!-4. 7 ar.... S . tI.v .
- Sv - vv~J% _ .L.v- v, ;- 5.GE+00
-:O ;1.1Eivi ;:4.2Ei-v -v 4.BEirvG -.. 6Etu0-v 6.9E&vv Required LLD's 3.00E+03 1.50E+01 1.50E+01 3.002+01 1.50E+01 3.002+01 1.50E+01 1.50E+01 1.50E+01 1.50E+01 1.80E+01 1.50E+01 1.50E+01 Reportable Level 3.00E+04 1.002+03 1.002+03 4.00E+02 3.002+02 3.00E+02 4.002+02 4.00E+02 2.00E+01 3.002+01 5.002+01 2.OOE+02 2.002+02 24
Graph 2 -- 2005 Environmental Surface Water Tritium Results 20000 ! _ .. ! . . ....
_ 15000 LZN ------ .....
0._
o 10000 D0 5000 0 -,--- I Mar-05 Jun-05 Sep-05 Dec-05 Monthly/Composite Sample Dates 25
.E. Surface Drinking Water Programi Surface drinking water was collected at two monitoring locations. Table I
-- Comanche Peak Steam Electric Station Radiological Environmental Monitoring Program for 2005 details the location and types of analysis required. Samples of water from Squaw Creek reservoir were collected at the monitoring location NNW-0.1 and analyzed at detection levels required for drinking water standards even though the water is not allowed to be used as potable water. Monitoring location N-9.9 was used as a surface drinking water location based on the proximity of the City of Granbury intake to the Granbury potable water system. All surface drinking water samples were collected weekly and then composited for Iodine-131 analysis, gamma isotopic analysis, and gross beta analysis on a monthly basis. Tritium analysis was performed on a quarterly basis.
For the year 2005, all samples were analyzed for gamma emitting radionuclides. The results are reported in Table 8 - Environmental Surface Drinking Water Tritium. Gross Beta and Gamma Isotopic Results.
There were no gamma emitting radionuclides identified in any of the twenty-four composite samples. Tritium reported in Squaw Creek reservoir ranged froml.38E+04 pCi/I to 1.27e+04 pCi/l and averaged 1.33e+04 pCi/I. Tritium reported from all Lake Granbury water samples indicated less than the required LLD as expected. Graph 4 - 2005 Environmental Surface Drinking Water Tritium Results trends the results reported for the year 2005. Gross Beta results at the indicator location NNW-0.1 ranged from 1.21e+01 pCi/I to 2.06e+01 pCi/I with an average of 1.70e+01 pCi/I. Gross Beta results at the control location N-9.9 ranged from 2.01e+01 pCi/I to 3.52e+01 pCi/I with an average of 2.78e+01 pCi/l. Graph 5 - 2005 Environmental Surface Drinking Water Gross Beta Results trends the gross beta results for the two monitor locations and indicates no influence from Comanche Peak in the levels detected in the two different bodies of water. Past gross beta results for Lake Granbury have been as high as 83 pCi/I. The gross beta results received are within values previously reported and there is no reportable level for gross beta so no action is required at this time.
For the year 2005 there were no exceptions to the Surface Drinking Water Program.
26
Table 8- 2005 Environmental Surface Drinking Water Tritium, Gross Beta and Gamma Isotooic Results (Units of pCUI)
H-3 Gross Nucildes Beta Date Location Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131 Cs-134 Cs-137 Ba-140 La-140 01/25105 NNW-0.1 1.61E+01 <3.2E+00 <3.5E+00 <1.1E+01 <4.0E+00 <8.0E+00 <5.1E+00 <4.6E+00 <5.4E-01 <3.4E+00 <2.5E+00 <7.7E+00 <8.9E+00 02/22/05 NNW-0.1 1.72E+01 <3.2E+00 <4.2E+00 <1.3E+01 <3.9E+00 <9.OE+00 <6.3E+00 <4.0E+00 <9.OE-01 <3.4E+00 <4.0E+00 <1.2E+01 <1.3E+01 03/29/05 NNW-0.1 1.36E+04 1.88E+01 <1.6E+00 <2.1E+00 <7.2E+00 <2.1E+00 <3.6E+00 <3.6E+00 <3.0E+00 <7.7E-01 <1.8E+00 <1.7E+00 <8.8E+00 <1.0E+01 04/26105 NNW-0.1 1.72E+01 <4.1E+00 <3.5E+00 <1.IE+01 <5.1E+00 <6.4E+00 <6.8E+00 <4.7E+00 <9.7E-01 <3.7E+00 <3.9E+00 <1.2E+01 <1.4E+01 05/31/05 NNW-0.1 1.94E+01 <2.9E+00 <2.9E+00 <8.6E+00 <3.0E+00 <5.9E+00 <5.2E+00 <4.4E+00 <9.OE-01 <3.4E+00 <2.6E+00 <9.3E+00 <1.1E+01 06/28/05 NNW-0.1 1.38E+04 1.21E+01 <3.9E+00 <4.9E+O0 <1.2E+01 <4.5E+00 <1.1E+01 <8.5E+00 <5.7E+00 <4.6E+00
<5.9E-01 <4.1 E+00 <1.2E+01 <1.3E+01 07/26/05 NNW-0.1 1.78E+01 <3.5E+00 <3.5E+00 <1.OE+01 <3.8E+00 <9.8E+00 <6.8E+00 <4.1 E+00 <7.8E-01 <4.0E+00 <4.2E+00 <1.5E+01 <1.1E+01 08!30t05 NNW-0.1 1.58E+01 <2.9E+00 <3.9E+00 <1.3E+01 <3.2E+00 <7.2E+00 <5.9E+00 <4.5E+00 <4.4E-01 <3.0E+00 <2.7E+00 <1.2E+01 <1.4E+01 09/27/05 NNW-0.1 1.30E+04 1.85E+01 <3.12+00 <3.8E+00 <1.1E+01 <3.1E+00 <9.9E+00 <5.8E+00 <4.1 E+00 <6.7E-01 <3.2E+00 <3.3E+00 <9.7E+00 <1.1E+01 10/25/05 NNW-0.1 2.062+01 <3.4E+00 <3.4E+00 <8.0E+00 <3.1E+00 <7.9E+00 <6.0E+00 <4.3E+00 <4.4E-01 11/29105 <3.2E+00 <2.8E+00 <8.9E+00 <1.0E+01 NNW-0.1 1.18E+01 <2.8E+00 <3.0E+00 <7.1E+00 <3.2E+00 <9.OE+00 <5.6E+00 <4.0E+00 <9.8E-01 <3.3E+00 <2.9E+00 <1.1E+01 <1.2E+01 12/27/05 NNW-0.1 1.27E+04 1.21E+01 <2.8E+00 <3.3E+00 <7.3E+00 <2.2E+00 <7.3E+00 <5.8E+00 <4.5E+00 <8.3E-01 <3.1E+00 <3.2E+00 <1.1E+01 <1.3E+01 01125/05 N-9.9 3.052+01 <3.5E+00 <3.0E+00 <8.8E+00 <3.3E+00 <8.3E+00 <6.2E+00 <4.2E+00 <5.6E-01 <3.6E+00 <3.3E+00 <7.5E+00 <8.6E+00 02/22/05 N-9.9 2.83E+01 <2.7E+00 <3.6E+00 <1.2E+01 <3.6E+00 <8.3E+00 <7.2E+00 <4.4E+00 <8.5E-01 <3.7E+00 <3.0E+00 <1.1E+01 <1.3E+01 03/29/05 N-9.9 <9.6E+02 2.50E+01 <1.7E+00 <2.1 E+00 <6.8E+00 <1.9E+00 <3.9E+00 <2.9E+00
<4.0E+00 <6.4E-01 <1.8E+00 <1.5E+00 <9.4E+00 <1.1E+01 04/26/05 N-9.9 2.72E+01 <4.1E+00 <5.6E+00 <1.4E+01 <4.2E+00 <1.0E+01 <8.5E+00 <6.6E+00 <4.5E+00
<5.6E-01 <3.6E+00 <1.2E+01 <1.4E+01 05/31/05 N-9.9 2.53E+01 <3.1E+00 <3.3E+00 <1.1E+01 <3.6E+00 <7.2E+00 <6.3E+00 <4.4E+00 <7.9E-01 <3.5E+00 <2.7E+00 <1.1E+01 <1.2E+01 06/28/05 N.9.9 <1.3E+03 3.52E+01 <4.6E+00 <4.3E+00 <1.6E+01 <3.7E+00 <1.2E+01 <4.8E+00
<6.7E+00 <6.0E-01 <4.7E+00 <4.8E+00 <1.1E+01 <1.3E+01 07/26/05 N-9.9 3.26E+01 <4.3E+00 <5.1E+00 <1.2E+01 <4.9E+00 <9.1E+00 <7.9E+00 <5.1E+00 <7.0E-01 <4.6E+00 <3.8E+00 <8.9E+00 <1.0E+01 08/30/05 N-9.9 2.81E+01 <1.8E+00 <2.1E+00 <5.9E+00 <2.0E+00 <4.5E+00 <4.0E+00 <2.7E+00 <4.5E-01 <1.8E+00 <1.7E+00 <7.0E+00 <8.1 E+00 09127105 N-9.9 <1.2E+03 2.20E+01 <3.3E+00 <3.4E+00 <1.2E+01 <3.5E+00 <7.6E+00 <6.4E+00 <4.4E+00 <7.9E-01 <3.6E+00 <3.2E+00 <1.1E+01 <1.3E+01 10,25/05 N-9.9 3.09E+01 <3.0E+00 <3.3E+00 <7.1E+00 <3.7E+00 <6.9E+00 <4.1 E+00 <5.2E-01
<5.6E+00 <3.5E+00 <3.1 E+00 <1.OE+01 <1.2E+01 11/29105 N-9.9 2.01E+01 <2.7E+00 <3.0E+00 <7.1E+00 <2.7E+00 <9.2E+00 <5.4E+00 <5.3E+00 <9.3E-01 <3.1 E+00 <2.5E+00 <7.7E+00 <8.8E+00 12/27/05 N-9.9 <1.4E+03 2.88E+01 <2.5E+00 <2.7E+00 <6.0E+00 <2.5E+00 <5.2E+00 <4.8E+00 <3.7E+00 <8.2E-01 <2.6E+00 <2.3E+00 <1.1E+01 <1.3E+01 Required LLD's 2.00E+03 4.00E+00 1.50E+01 1.50E+01 3.00E+01 1.50E+01 3.00E+01 1.50E401 1.50E+01 1.00E+00 1.50E+01 1.80E+01 1.50E+01 1.50E+01 Reportable Level 2.00E+04 None 1.00E+03 1.00E+03 4.00E+02 3.00E+02 3.00E+02 4.00E+02 4.00E+02 2.00E+00 3.00E+01 5.00E+01 2.00E+02 2.00E+02 27
Graph 3 -- Squaw Creek Maximum Tritium Values 30000 .; -
.w .......
. 7 7
. p ....
7 r
7 25000 .
f ...................
T z
E
' F' r . -
. _ . _ . . , + . " ., '< ,, +] . - ..............
ffi . ' ' . ' .' 'r' u; " ' ' ' ' : . ; . '
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= ;.
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=
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1.
0
.. . r :: ., : . , , ,: .. .. - .
, X, , ............... . ,; . , ., - - . . .. . . .. - . . . . :.: g - : .. .. ,, - . -,
C, 15000 l o Maximum tritium
.. : ." .' ".__ .......... ;'_ ... T.'__. : ................ , ',., ' . . .... . - . ',, , ,. . -, , . '
I-' . E _ ... ' . f . . ... . _ _ + . ' ' . '
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_ '. , f, ,/ . ,";, ,,_, ,Y, ......................................... _ _s, ' . ; - .' . .' _' , ' . ..................................... ' . .
10000 -
- ' =: ._= : _ = ___.: , _: ....................... __ . : _ . . < . .........................................
s -' -.- 'M.- _< ' ;0 .. ' ; ' * ' ;' - f ' . i-' ' ' i t
- ^'.. * '6 . .t .. . , ' ' .' -' ' ' ' i .N.',' ', ', ' " . A., ' .'., . _ .
5000 -
_ ..... _.s_.._ ;. ' ._. ' '.:- f ... + .: . .; .. i.R ., _ . ',: ., ....
0 _-
' v
I, I
I I
I 5b.1 §Kb Kb Kb I0~
Yearly Maximum 28
Graph 4 - 2005 Environmental Surface Drinking Water Tritium Results 1.60E+04 -
1.40E+04 -
1.20E+04 -
% 1.OOE+04 - - N-_
0 8.OOE+03 - -,. --..
.E 6.OOE+03 -
4.OOE+03 - _ _ _ _ _ _ _ _ _ _ _ _ _ _
2.OOE+03 4.O0E+003,,r ..
Mar-05 Jun-05 Sep-05 Dec-05 Composite Sample Dates 29
Graph 5 -- 2005 Environmental Surface Drinking Water Gross Beta Results 4.OOE+01 A 3.50E+01 A-4 II--I U 3.OOE+01 0.
4- 2.50E+01 . N-9.9 0 2.OOE+01 (I) 1.50E+01 - NNW-O. 1
'6- 1.OOE+01 5.OOE+OO O.OOE+OO I I I I I I I I I Monthly Data Points 30
F. Ground Water Program Table I - Comanche Peak Steam Electric Station Radiological Environmental Monitoring Program for 2005 specifies the five groundwater monitoring locations. Groundwater supplies in the site area are not affected by plant effluents and are sampled only to provide confirmation that groundwater is not affected by plant discharges.
Groundwater samples were collected quarterly and analyzed for gamma isotopes and tritium at each location.
For the year 2005, a total of twenty groundwater samples were collected from the five different monitoring locations. There were no radionuclides identified in any of the samples. All required LLDs were met for each required gamma emitting radionuclide. Tritium analysis was performed on twenty samples, all indicated less than the required LLD. Results for all the groundwater analyses are reported in Table 9 - 2005 Environmental Groundwater Tritium and Gamma Isotopic Results. These results confirm that plant discharges are having no effect on groundwater in the area surrounding Comanche Peak.
For the year 2005, there were no exceptions to the Ground Water Program.
31
Table 9 - 2005 Environmental Groundwater Tritium and Gamma isotonic Results (Units of pCUI)
Nuclides H-3 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Date Location 03/29105 SSE-4.6 <1.OE+03 <2.8E+00 <3.4E+00 <9.6E+00 <3.5E+00 <8.2E+00 <6.1E+00 <4.1E+00 <1.4E+01 <3.5E+00 <2.8E+00 <8.4E+00 <9.7E+00 06128105 SSE-4.6 <1.4E+03 <6.6E+00 <6.4E+00 <2.1E+01 <6.8E+00 <1.5E+01 <1.2E+01 <7.1E+00 <1.2E+01 <5.8E+00 <6.7E+00 <1.1E+01 <1.3E+01 09127/05 SSE-4.6 <1.4E+03 <4.OE+00 <4.4E+00 <8.4E+00 <3.8E+00 <1.3E+01 <7.8E+00 <5.2E+00 <1.3E+01 <4.1E+00 <3.9E+00 <8.3E+00 <9.5E+00 12127/05 SSE-4.6 <1.5E+03 <6.6E+00 <6.7E+00 <1.5E+01 <8.4E+00 <2.OE+01 <1.1E+01 <7.8E+00 <1.1E+01 <7.0E+00 <7.1E+00 <9.3E+00 <1.IE+01 03129105 N-1.45 <1.OE+03 <4.2E+00 <3.1E+00 <1.9E+01 <6.6E+00 <1.2E+01 <8.4E+00 <7.1E+00 <9.4E+00 <5.7E+00 <5.0E+00 <8.9E+00 <1.OE+01 06128105 N-1.45 <1.3E+03 <6.0E+00 <7.2E+00 <1.9E+01 <8.9E+00 <1.4E+01 <1.0E+01 <7.5E+00 <1.OE+01 <6.3E+00 <6.2E+00 <1.3E+01 <1.4E+01 09127105 N-1.45 <1.4E+03 <3.8E+00 <3.8E+00 <9.4E+00 <3.8E+00 <9.6E+00 <6.6E+00 <5.3E+00 <1.1E+01 <4.2E+00 <3.6E+00 <7.1E+00 <8.2E+00 12V27105 N-1.45 <1.5E+03 <6.3E+00 <6.6E+00 <1.4E+01 <7.1E+00 <2.2E+01 <1.2E+01 <8.8E+00 <1.2E+01 <6.5E+00 <6.5E+00 <9.6E+00 <1.1E+01 03/29/05 N-9.8 <1.0E+03 <3.1E+00 <3.6E+00 <8.0E+00 <3.8E+00 <7.5E+00 <6.5E+00 <3.9E+00 <7.8E+00 <2.8E+00 <3.8E+00 <5.3E+00 <6.1E+00 06128105 N-9.8 <1.3E+03 <6.0E+00 <6.0E+00 <2.1E+01 <7.7E+00 <1.5E+01 <1.OE+01 <6.8E+00 <1.3E+01 <6.6E+00 <6.2E+00 <1.2E+01 <1.4E+01 09127105 N-9.8 <1.4E+03 <3.9E+00 <3.9E+00 <8.2E+00 <3.9E+00 <8.6E+00 <6.5E+00 <4.6E+00 <9.OE+00 <4.OE+00 <3.7E+00 <9.OE+00 <1.OE+01 12127105 N-9.8 <1.5E+03 <7.2E+00 <7.3E+00 <1.6E+01 <6.7E+00 <2.8E+01 <1.3E+01 <1.1E+01 <1.3E+01 <7.6E+00 <7.8E+00 <1.2E+01 <1.4E+01 03129105 W-1.2 <1.0E+03 <3.3E+00 <3.7E+00 <9.3E+00 <3.8E+00 <8.4E+00 <6.9E+00 <4.2E+00 <7.2E+00 <3.6E+00 <3.6E+00 <6.2E+00 <7.2E+00 06128105 W-1.2 <1.6E+03 <4.1E+00 <4.3E+00 <1.5E+01 <5.3E+00 <1.1E+01 <6.8E+01 <4.6E+00 <7.8E+00 <4.6E+00 <4.7E+00 <7.3E+00 <8.4E+00 09/27105 W-1.2 <1.4E+03 <4.2E+00 <4.7E+00 <1.1E+01 <4.4E+00 <1.1E+01 <8.8E+00 <6.1E+00 <1.3E+01 <4.2E+00 <4.3E+00 <9.7E+00 <1.1E+01 12127105 W-1.2 <1.5E+03 <8.2E+00 <6.8E+00 <1.5E+01 <7.7E+00 <2.4E+01 <1.3E+01 <8.1 E+00 <1.4E+01 <8.3E+00 <7.9E+00 <1.3E+01 <1.5E+01 03129105 WSW-0.1 <1.0E+03 <5.1E+00 <5.6E+00 <1.5E+01 <6.1E+00 <1.6E+01 <9.5E+00 <5.3E+00 <9.3E+00 <5.3E+00 <3.7E+00 <1.0E+01 <1.2E+01 06/28/05 WSW-0.1 <1.4E+03 <5.9E+00 <5.3E+00 <1.5E+01 <7.2E+00 <1.2E+01 <1.0E+01 <5.9E+00 <9.OE+00 <5.2E+00 <5.3E+00 <9.7E+00 <1.1E+01 09127105 WSW-0.1 <1.4E+03 <4.3E+00 <4.8E+00 <9.7E+00 <4.0E+00 <8.6E+00 <7.3E+00 <5.2E+00 <1.2E+01 <4.9E+00 <4.3E+00 <9.2E+00 <1.1E+01 12V27105 WSW-0.1 <1.5E+03 <7.6E+00 <7.5E+00 <1.4E+01 <7.2E+00 <1.9E+01 <1.5E+01 <1.0E+01 <1.3E+01 <7.4E+00 <7.2E+00 <1.2E+01 <1.4E+01 Required LLD's 3.OOE+03 1.50E+01 1.50E+01 3.00E+01 1.50E+01 3.OOE+01 1.50E+01 1.50E+01 1.50E+01 1.50E+01 1.80E+01 1.50E+01 1.50E+01 Reportable Levels 2.00E+04 1.00E+03 1.00E+03 4.00E+02 3.00E+02 3.00E+02 4.002+02 4.002+02 2.00E+01 3.OOE+01 5.00E+01 2.00E+02 2.00E+02 32
G. Sediment Prograi Shoreline sediments were collected at four different monitoring locations.
One sample locations is along the shore of Squaw Creek Reservoir, one sample location is on Squaw Creek down stream of the dam discharge and two locations are along Lake Granbury's shores. Each sample is collected on a six-month frequency and sent to the contract laboratory for analysis by gamma spectrometry.
The process of shoreline sedimentation is a complex evolution whereby potential radionuclides and stable elements may concentrate in the bottom sediment of particular bodies of water. The concentrations are effected by such things as colloidal particles combining with chelating agents and biological action of bacteria and other benthic organisms. Monitoring of the area shorelines provides one of the first and best indicators of radionuclide deposition.
For the year 2005 results from the gamma isotopic analysis of shoreline sediments is reported in Table 10 -- 2005 Environmental Sediment Gamma Isotopic Results. As expected and in agreement with previous results from both the pre-operational and operational programs, naturally occurring Potassium-40 was detected in all eight samples. Radioactive nuclides required to be analyzed for were performed and all samples indicated less than the required LLDs. During previous years, both pre-operational and operational, positive indications occasionally had been noted for Cesium-137 and during 2005 there were two positive Cesium-137 result reported. Both results were less than the required LLDs. The only other positive value reported for 2005 was for naturally occurring Beryllium-7. As expected, there were no results in any sediment sample that indicated any direct influence from CPSES discharges to the local environment.
For the year 2005, there were no exceptions to the Sediment Program.
33
Table 10- 2005 Environmental Sediment Gamma Isotonic Results (Units of pCilkg)
Nuclides Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Date Location 01111105 SE-5.3 5.00E+02 5.93E+03 <4.1E+01 <3.4E+01 <8.4E+01 <3.6E+01 <1.7E+02 <7.6E+03 <5.3E+01 <6.3E+01 <3.3E+01 <4.8E+01 <1.7E+02 <9.2E+01 01111105 NNE-1.0 <2.2E+02 2.10E+03 <2.7E+01 <2.7E+01 <3.8E+01 <2.4E+01 <1.2E+02 <7.4E+01 <3.5E+01 <3.7E+01 <2.3E+01 <2.4E+01 <1.2E+02 <6.2E+01 01111105 NE-7.4 <2.4E+02 6.41E+03 <3.2E+01 <3.3E+01 <7.3E+01 <3.5E+01 <1.2E+02 <9.2E+01 <5.1E+01 <5.3E+01 <1.2E+02 <3.4E+01 <1.4E+02 <8.1E+01 01111105 N-9.9 <2.6E+02 4.89E+03 <2.8E+01 <2.7E+01 <5.5E+01 <2.7E+01 <1.2E+02 <9.1E+01 <3.9E+01 <4.7E+01 <2.9E+01 <2.9E+01 <1.4E+02 <7.3E+01 07/105OS SE-5.3 1.06E+03 5.31E+03 <3.1E+01 <3.3E+01 <6.7E+01 <2.6E+01 <1.4E+02 <6.OE+01 <4.6E+01 <4.IE+01 <3.OE+01 6.60E+01 <1.3E+02 <7.lE+01 07.'05105 NNE-1.0 <1.5E+02 2.42E+03 <1.DE+01 <1.6E+01 <4.3E+01 <2.0E+01 <1.0E+02 <3.4E401 <2.6E+01 <3.2E401 <3.8E401 2.88E+01 <9.1E+01 <4.5E+01 07105105 NE-7.4 <1.3E+02 1.63E+03 <1.3E+01 <1.8E+01 <4.2E+01 <2.1E+01 <8.1E+01 <2.9E+01 <2.5E+01 <2.9E+01 <1.9E+01 <2.1E+01 <7.3E+01 <3.7E+01 07/05/05 N-9.9 <1.3E+02 2.78E+03 <2.OE+01 <1.7E+01 <3.9E+01 <1.9E+01 <5.9E+01 <3.OE+01 <2.OE+01 <2.3E+01 <1.8E+01 <1.9E+01 <8.OE+01 <3.9E+01 Required LLD's 1.50E+02 1.80E+02 Reportable Levels None None 34
IL. Fish Program Fish samples were collected at two locations during the year 2005. One monitoring location is an area approximately two miles east-northeast of the site on Squaw Creek Reservoir. The second location is on Lake Granbury approximately eight miles north-northeast of the site. Fish sampling is scheduled for the months of April and October. CPSES personnel along with local State Game Wardens collect the fish from these areas. The fish are now caught using rod and reels to eliminate the killing of rough fish and extra game fish that is associated with the past method of using gill nets to obtain the required fish. The collected fish are frozen and shipped to the independent laboratory where the edible portions are analyzed for gamma emitting radionuclides.
For the year 2005, the results of the analysis performed on the collected fish samples is reported in Table II -- 2005 Environmental Fish Gamma Isotopic Results. Catfish and bass samples were analyzed as indicated in the table. There were no positive results reported except for the expected Potassium40, which is naturally occurring in all living organisms. All required radionuclide results were reported as less than the required LLDs.
As a result of the fish-sampling program, there were no anomalies noted and no indication of any influence on the surrounding environment from Comanche Peak plant discharges.
For the year 2005, there was one exception to the Fish Program.
During the sampling period in April 2005, no fish were available from the Lake Granbury location. Smart Form 2005-0011585 was written to address this issue.
No abnormal results were reported by CPSES or by the State of Texas and as expected Potassium40 was the only positive isotope found.
35
Table 11 - 2005 Environmental Fish Gamma Isotopic Results (Units of pCikg wet)
Nuclides K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1.131 Cs.134 Cs-137 Ba.140 La-140 Fish Type Date Location 04/0512005 Squaw Creek 2.45E+03 <4.7E+01 <6.2E+01 <1.9E+02 <6.2E+01 <1.4E+02 <8.5E+01 <5.1E+01 <1.4E+02 <5.2E+01 <4.2E+01 <1.6E+02 <1.9E+02 Catfish 04/0512005 Squaw Creek 2.80E+03 <4.2E+01 <4.3E+01 <1.7E+02 <6.3E+01 <9.3E+01 <9.5E+01 <4.9E+01 <1.6E+02 <4.4E+01 <7.7E+01 <2.0E+02 <2.3E+02 Bass 10/1812005 Squaw Creek 2.52E+03 <3.8E+01 <2.8E+01 <8.6E+01 <3.9E+01 <7.7E+01 <5.OE+01 <4.4E+01 <1.2E+02 <3.6E+01 <3.42+01 <1.1E+02 <1.2E+02 Catfish 10/1812005 Squaw Creek 2.33E+03 <3.5E+01 <4.1E+01 <9.4E+01 <3.4E+01 <9.OE+01 <5.4E+01 <4.OE+01 <1.4E+02 <3.4E+01 <3.1E+01 <1.3E+02 <1.5E+02 Bass 04/05/2005 Lake Granbury 04/0512005 Lake Catfish Granbury 1011812005 Lake Granbury Bass 2.44E+03 <3.1E+01 <2.7E+01 <6.3E+01 <4.8E+01 <6.8E+01 <5.0E+01 <4.1E+01 <8.9E+01 <3.1E+01 <3.7E+01 <7.2E+01 <8.3E+01 Catfish 1011812005 Lake Granbury 2.88E+03 <2.8E+01 <2.8E+01 <5.9E+01 <2.7E+01 <5.7E+01 <5.2E+01 <3.4E+01 <8.8E+01 <2.8E+01 <3.0E+01 <5.4E+01 <6.2E+01 Bass Required LLD's 1.30E+02 1.302+02 2.60E+02 1.30E+02 2.60E+02 1.30E+02 1.50E+02 Reportable Levels 3.00E+04 3.OOE+04 1.00E+04 1.00E+04 2.002+04 1.00E+03 2.002+03 36
.1. Food Products Program Food products (pecan) were collected at the time of harvest. The samples are obtained at monitoring location ENE-9.0 and are shipped to the contract laboratory for gamma isotopic analysis.
For the year 2005, results of the gamma isotopic analysis are reported in Table 12 -- 2005 Environmental Food Products Gamma Isotopic Results.
Naturally occurring Potassium 40 was detected in the sample as expected and there were no other gamma emitting radionuclides identified.
For the year 2005, there were no exceptions to the Food Products program.
37
Tahhe 12i - ginn; Fnvirnnmanta! Fonro Prnrhoete nmmmn lentnit- PDnaumt*
(Units of pCi/kg wet)
Food Type - Pecans Nuclides 1-131 Be-7 K-40 Mn-54 Co-58 Fe-59 Co-SO Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 Date Location 11/08/05 ENE-9.0 <4.OE+01 <1.2E+02 3.80E+03 <1.4E+01 <1.4E+01 <3.1E+01 <1.6E+01 <2.9E+01 <2.4E+01 <1.7E+01 <1.4E+01 <1.4E+01 <2.6E+01 <3.OE+01 Required LLD's 6.00E+01 6.OOE+01 8.00E+01 Reportable Levels 1.OOE+02 1.OOE+03 2.OOE+03 38
.1. Broadleaf Program Broadleaf sample collection is conducted in accordance with the requirements of the Radiological Environmental Monitoring Program.
The program specifies the sampling based on the absence of milk monitoring locations. One broadleaf control location is located at SW-13.5 in the vicinity of the previous control milk location. The two indicator locations, N-1.45 and SW-1.0, are located near the site boundaries. The broadleaf samples consist of mainly native grasses and are analyzed for Iodine-] 31 and gamma emitting isotopes.
For the year 2005, all radionuclide analysis with the exception of one met their required LLDs and there was one indication of gamma emitting radionuclides. One positive value for Cs-137 at 7.80E+01 pci/kg was detected. This value is within the normal range for pre-operational and operational history. There were no indications oflodine-131 being detected. The naturally occurring radionuclide of Potassium-40 was found in 36 of 36 samples taken. The radionuclide Beryllium-7 was present in 36 of 36 samples.
For the year 2005, there were no exceptions to the Broadleaf Program.
39
Table 13 - 2005 Environmental Broadleaf lodine-131 and Gamma Isotopic Results (Units of pCi/kg wet)
Nuclides 1-131 Be.7 K.40 Mn.54 Co-58 Fe-59 Co-S0 Zn-65 Zr-95 Nb.95 Cs-134 Cs.137 Ba-140 La-140 Date Location u ,;2S;2vuU N-i.45 *2.2E'r0i i.uujE+03 2.20E+u3 <3.zE+ui <3J.ft+U1 <9.7E+01 <4.6E+01 <9.4E+01 <6.2E+01 <4.0E+01 <3.5E+01 <3.8E+01 <5.1 E+01 <5.8E+01 02/22/2005 N-1.45 <2.8E+01 1.54E+03 2.89E+03 <4.3E+01 <4.0E+01 <1.6E+02 <5.4E+01 <1.2E+02 <7.1E+01 <4.3E+01 <5.4E+01 <3.4E+01 <7.6E+01 <8.7E+01 03/2912005 N-1.45 <3.9E+01 9.19E+03 2.03E+03 <5.2E+01 <6.0E+01 <1.8E+02 <5.3E+01 <1.2E+02 <8.8E+01 <6.3E+01 <5.8E+01 7.80E+01 <1.6E+02 <1.9E+02 04/26/2005 N-1.45 <3.4E+01 2.33E+03 3.8SE+03 <3.BE+01 <3.7E+01 <1.4E+02 <5.1E+01 <8.5E+01 <5.5E+01 <4.5E+01 <3.7E+01 <3.2E+01 <7.0E+01 <8.0E+01 05/3112005 N-1.45 <4.4E+01 2.41E+03 3.61E+03 <2.3E+01 <3.0E+01 <8.8E+01 <2.5E+01 <5.6E+01 <5.2E+01 <4.8E+01 <2.4E+01 <2.0E+01 <1.7E+02 <1.9E+02 06/28/2005 N-1.45 <5.4E+01 2.50E+03 5.37E+03 <3.0E+01 <3.5E+01 <1.0E+02 <3.9E+01 <7.2E+01 <6.0E+01 <4.0E+01 <3.3E+01 <2.8E+01 <7.0E+01 <8.1E+01 07/2612005 N-1.45 <4.1E+01 3.20E+03 2.71E+03 <3.3E+01 <3.2E+01 <9.1 E+01 <3.2E+01 <1.1E+02 <5.6E+01 <4.7E+01 <3.4E+01 <2.8E+01 <6.9E+01 <8.0E+01 08/3012005 N-1.45 <4.8E+01 1.04E+03 2.67E+03 <4.9E+01 <6.8E+01 <1.5E+02 <6.8E+01 <1.5E+02 <1.4E+02 <8.9E+01 <5.6E+01 <7.0E+01 <1.2E+02 <1.4E+02 09/2712005 N-1.45 <2.5E+01 2.79E+03 7.80E+03 <4.1E+01 <5.3E+01 <1.1 E+02 <4.7E+01 <9.OE+01 <8.0E+01 <5.7E+01 <4.5E+01 <3.4E+01 <1.5E+02 <1.7E+02 10/25/2005 N-1.45 <4.3E+01 1.13E+03 3.89E+03 <3.3E+01 <3.8E+01 <8.0E+01 <3.7E+01 <8.4E+01 <6.3E+01 <4.7E+01 <3.8E+01 <3.5E+01 <7.9E+01 <9.0E+01 1112912005 N-1.45 <4.OE+01 7.20E+02 1.71E+03 <5.0E+01 <5.12+01 <1.1E+02 <5.2E+01 <1.3E+02 <9.5E+01 <5.9E+01 <5.0E+01 <4.6E+01 <9.5E+01 <1.1E+02 12127/2005 N.1.4s <5.4E+01 8.20E+02 3.12E+03 <5.7E+01 <4.4E+01 <9.5E+01 <5.0E+01 <1.2E+02 <7.8E+01 <4.2E+01 <4.3E+01 <5.0E+01 <7.4E+01 <8.5E+01 Control 01125/2005 SW-13.5 <2.0E+01 7.10E+02 8.76E+03 <5.2E+01 <6.1 E+01 <1.6E+02 <6.7E+01 <1.5E+02 <7.9E+01 <6.0E+01 <5.4E+01 <4.3E+01 <9.6E+01 <1.1E+02 0212212005 SW- 13.5 <4.1E+01 4.60E+02 4.88E+03 <2.8E+01 <4.1 E+01 <1.3E+02 <4.4E+01 <1.0E+02 <7.4E+01 <5.3E+01 <4.4E+01 <4.9E+01 <9.6E+01 <1.1E+02 03129/2005 SW-13.5 <3.1 E+01 1.02E+03 5.37E+03 <6.1E+01 <7.1E+01 <1.8E+02 <9.OE+01 <1.2E+02 <1.0E+02 <4.5E+01 <5.8E+01 <5.0E+01 <1.7E+02 <2.0E+02 0412612005 SW-13.5 <4.3E+01 4.90E+02 5.18E+03 <4.7E+01 <4.5E+01 <1.8E+02 <5.5E+01 <1.1E+02 <7.5E+01 <5.5E+01 <5.4E+01 <4.2E+01 <9.5E+01 <1.1E+02 05/3112005 SW-13.5 <5.2E+01 1.06E+03 2.54E+03 <4.3E+01 <4.5E+01 <1.7E+02 <3.9E+01 <1.1E+02 <9.8E+01 <7.6E+01 <4.4E+01 <3.5E+01 <2.2E+02 <2.5E+02 06/28/2005 SW-13.5 <5.3E+01 8.80E+02 7.06E+03 <3.3E+01 <3.0E+01 <1.1E+02 <3.5E+01 <9.1E+01 <5.7E+01 <3.4E+01 <3.0E+01 <2.6E+01 <7.4E+01 <8.5E+01 07/2612005 SW-1 3.5 <4.6E+01 1.29E+03 2.99E+03 <3.0E+01 <4.4E+01 <1.6E+02 <5.0E+01 <1.1E+02 <7.7E+01 <5.0E+01 <3.8E+01 <3.4E+01 <1.1 E+02 <1.2E+02 08/30/2005 SW-13.5 <5.0E+01 1.81E+03 5.51E+03 <5.9E+01 <5.6E+01 <1.8E+02 <5.6E+01 <2.1E+02 <1.0E+02 <9.OE+01 <5.8E+01 <4.7E+01 <8.6E+01 <9.9E+01 09/2712005 SW- 13.5 <3.1E+01 1.77R+03 1.07E+04 <5.4E+01 <5.9E+01 <1.5E+02 <5.6E+01 <1.4E+02 <1.1E+02 <9.1E+01 <5.3E+01 <4.9E+01 <1.7E+02 <1.9E+02 10/25/2005 SW- 13.5 <4.4E+01 2.02E+03 1.06E+04 <4.4E+01 <4.8E+01 <1.1E+02 <4.3E+01 <1.1E+02 <8.5E+01 <5.8E+01 <4.9E+01 <5.2E+01 <8.8E+01 <1.0E+02 11/2912005 SW- 13.5 <3.8E+01 7.60E+02 1.10E+04 <5.0E+01 <5.8E+01 <1.5E+02 <7.2E+01 <1.3E+02 <1.0E+02 <8.0E+01 <5.4E+01 <4.8E+01 <1.4E+02 <1.6E+02 12/2712005 SW- 13.5 <3.9E+01 1.09E+03 1.82E+03 <4.5E+01 <5.0E+01 <8.4E+01 <5.7E+01 <1.1E+02 <8.9E+01 <5.4E+01 <5.0E+01 <4.6E+01 <9.3+01 <1.1E+02 01/25/2005 SW-1.0 <2.3E+01 6.80E+02 1.92E+03 <2.9E+01 <2.7E+01 <1.1E+02 <4.6E+01 <8.7E+01 <5.9E+01 <4.0E+01 <2.2E+01 <4.0E+01 <5.9E+01 <6.8E+01 02/2212005 SW-1.0 <3.5E+01 5.88E+03 7.60E+02 <4.0E+01 <4.4E+01 <1.1E+02 <4.5E+01 <1.0E+02 <7.4E+01 <5.0E+01 <4.4E+01 <3.6E+01 <8.3E+01 <9.6E+01 03/2912005 SW-1.0 <4.0E+01 1.04E+04 4.10E+02 <3.5E+01 <4.0E+01 <1.22+02 <4.4E+01 <9.4E+01 <6.9E+01 <4.6E+01 <3.5E+01 <2.9E+01 <1.0E+02 <1.2E+02 04/26/2005 SW-1.0 <5.1 E+01 1.75E+03 2.96E+03 <4.0E+01 <4.1E+01 <1.2E+02 <4.3E+01 <9.2E+01 <7.2E+01 <4.7E+01 <3.6E+01 <3.0E+01 <8.6E+01 <9.9E+01 05/31t2005 SW-1.0 <4.6E+01 1.00E+03 2.93E+03 <5.1E+01 <5.4E+01 <2.3E+02 <3.7E+01 <1.3E+02 <1.3E+02 <9.3E+01 <4.7E+01 <4.0E+01 <2.5E+02 <2.9E+02 06/28/2005 SW-1.0 <5.6E+01 5.80E+02 3.36E+03 <5.0E+01 <5.9E+01 <1.5E+02 <6.2E+01 <1.2E+02 <8.7E+01 <6.6E+01 <5.2E+01 <3.9E+01 <1.6E+02 <1.8E+02 07/2612005 SW-1.0 <4.2E+01 6.122+02 3.49E+03 <3.0E+01 <2.8E+01 <9.5E+01 <3.9E+01 <7.8E+01 <4.7E+01 <4.0E+01 <2.8E+01 <2.7E+01 <6.4E+01 <7.4E+01 08/30/2005 SW-1.0 <5.4E+01 1.06E+03 4.25E+03 <5.7E+01 <6.3E+01 <1.4E+02 <5.8E+01 <1.2E+02 <1.2E+02 <7.3E+01 <5.8E+01 <5.3E+01 <9.2E+01 <1.1E+02 09/2712005 SW-1.0 <2.5E+01 8.40E+02 2.80E+03 <4.8E+01 <5.5E+01 <1.3E+02 <5.4E+01 <1.2E+02 <9.7E+01 <6.9E+01 <4.6E+01 <4.4E+01 <1.5E+02 <1.8E+02 10/25/2005 SW-1.0 <5.9E+01 1.14E+03 3.80E+03 <3.0E+01 <3.4E+01 <8.4E+01 <3.6E+01 <8.3E+01 <6.4E+01 <3.8E+01 <3.6E+01 <3.4E+01 <6.9E+01 <8.0E+01 11129/2005 SW-1.0 <2.6E+01 9.702+02 3.39E+03 <4.5E+01 <5.2E+01 <1.OE+02 <5.6E+01 <1.9E+02 <8.2E+01 <6.5E+01 <5.0E+01 <4.6E+01 <1.1E+02 <1.3E+02 12/27/2005 SW-1.0 <3.2E+01 5.40E+02 1.94E+03 <4.4E+01 <4.3E+01 <1.1E+02 <5.1E+01 <1.0E+02 <7.92+01 <5.4E+01 <4.9E+01 <3.6E+01 <9.1 E+01 <1.OE+02 Required LLD's 6.00E+01 6.00E+01 8.00E+01 Reportable Levels 1.002+02 1.00E+03 2.002+03 40
K. Conclusions For the year 2005, based on the results presented in this report and from comparisons with the pre-operational and operational program results from previous years, it can be concluded that the impact of Comanche Peak on the environment is very small. The only indication directly attributable to Comanche Peak is the tritium detected in Squaw Creek reservoir.
Gross beta trend indications concerning Squaw Creek Reservoir are consistent with previous values and do not indicated any increase due to influence from Comanche Peak. Future data will be evaluated as it is received and changes will be addressed as necessary.
The atmospheric environment was sampled for airborne particulate matter, radioiodine and direct radiation. The terrestrial environment was sampled using groundwater, surface drinking water, food products and broadleaf vegetation.
The aquatic environment was sampled using surface water, fish and shoreline sediments. The analyses of all these samples provided results that were below the measurement detection limits, or were indicative of expected natural terrestrial and cosmogenic levels, except for the tritium in the water samples of Squaw Creek reservoir. The tritium in Squaw Creek reservoir is reaching equilibrium and is expected to remain well below the reportable level.
There were no values reported during the year 2005 that exceeded any NRC reportable limit.
L. Interlahoratory Comparison and Cross Check Program Framatome ANP Environmental Laboratory is the independent contract laboratory that processes the radiological environmental monitoring samples collected by CPSES. The contract laboratory is required to participate in an Interlaboratory Comparison Program in accordance with the ODCM Control 3.12.3. Framatome participates in multiple programs to ensure all environmental media sent to them are analyzed to the proper standards.
Framatome recently published "Semi-Annual Quality Assurance Status Report January-June 2005"and "Semi-Annual Quality Assurance Status Report July-December 2005"which included current interlaboratory comparison results and two year trends as appropriate. These reports explain the Quality Control Program used by Framatome during their respective time periods. Interlaboratory and third party quality control programs included the Environmental Crosscheck Program administered by Analytics, Inc., the National Institute of Standards and Technology (NIST) Measurement Assurance Program (MAP), the Environmental Resource Associates (ERA) Proficiency Test (PT), the Department of Energy (DOE) Quality Assessment Program (QAP) and the Mixed Analyte Performance Evaluation Program (MAPEP). Framatome also conducts an internal Quality 41
Control Program that includes QC functions such as instrumentation checks, blank samples, instrumentation backgrounds, duplicates, staff qualification analysis and process controls.
There were no external audits performed during the first semi-annual period.
There was one internal audit during the first semi-annual reporting period.
Extensive details of the results of the various interlaboratory and cross check programs are contained in the reports mentioned above. A summary of each reporting period is reported below:
During the first semi-annual reporting period, there were 32 nuclides associated with various media types analyzed by means of the Laboratory's internal process control, DOE, NIST, ERA and Analytics quality control programs.
The Analytics Cross Check Program provided 169 individual environmental analyses for bias and 169 for precision. 98.2% fell within the Laboratory's acceptance criteria for bias and 100% were within tolerance limits for precision.
The ERA Program provided a total of 9 mean results evaluated by ERA with an 100% agreement.
Of the 337 internal process control analyses evaluated for bias, 100% met Laboratory acceptance criteria. Also, 100% of the 103 results for precision were found acceptable.
All 69 QC charcoals evaluated during this period reported positive activity as expected.
None of the 127 environmental analytical blanks analyzed reported positive activity greater than 3 times the standard deviation.
None of backgrounds processed reported activity above the 3 times the standard deviation limit.
The cumulative bias for the three programs evaluated to the internal Laboratory's performance criteria shows 99.5% of the 552 individual results fell within acceptance criteria for bias whilelO0% of the 317 analyses fell within the acceptance criteria for precision.
A review was performed of all Condition Reports (CR) listed in the report. 13 CRs were closed during this period and 14 CRs were issued. No adverse trend can be detected and the Laboratory is pursuing resolution of all open CRs.
During the second semi-annual reporting period, there were 28 nuclides associated with various media types analyzed by means of the Laboratory's 42
internal process control, DOE, NIST, ERA and Analytics quality control programs.
The Analytics Cross Check Program provided 158 individual environmental analyses for bias and 157 for precision. 100% fell within the Laboratory's acceptance criteria for bias and 100% were within tolerance limits for precision.
The ERA Program provided a total of 9 mean results evaluated by ERA and all came within agreement criteria.
Of the 302 internal process control analyses evaluated for bias, 100% met Laboratory acceptance criteria. Also, 100% of the 313 results for precision were found acceptable.
All 66 QC charcoals evaluated during this period reported positive activity as expected.
Two of the 65 environmental analytical blanks analyzed reported positive activity greater than 3 times the standard deviation. The two blanks, both gross beta measurements, were just slightly above the limit. All client samples affected were re-processed with an acceptable analytical blank.
None of the backgrounds processed reported any activity above the 3 times the standard deviation limit.
LQCAC blind duplicates resulted in greater than 99.5% of all paired measurements meeting the LQCAC acceptance criteria.
The cumulative bias for the three programs evaluated to the internal Laboratory's performance criteria shows 100% of the 520 individual results fell within acceptance criteria for bias while 100% of the 530 analyses fell within the acceptance criteria for precision.
A review was performed of all Condition Reports (CR) listed in the report. 7 CRs were closed during this period and 8 CRs were issued. No adverse trend can be detected and the Laboratory is pursuing resolution of all open CRs.
There was one internal audit during the second semi-annual reporting period.
The independent laboratory, Framatome, satisfies the requirements of the ODCM by their participation in the interlaboratory and cross check programs documented in their semi-annual reports.
43
Appendix A Comanche Peak Steam Electric Station Land Use Census 2005 COPY 44
COMANCHE PEAK STEAM ELECTRIC STATION LAND USE CENSUS 2005 The Land Use Census identified receptors within a five (5) mile radius of the plant in each of the sixteen (16) meteorological sectors. The Land Use Census was conducted July31, 2005 and August 1, 2005 and includes the following items:
- 1. Evaluation of the 2005 Land Use Census
- 2. Nearest Resident by Sector, Distance, X/Q and D/Q
- 3. Nearest Garden by Sector, Distance and D/Q
- 4. Nearest Milk Animal by Sector, Distance and D/Q
- 5. Population by Sector and Distance
- 6. Environmental Sample Locations Table
- 7. Environmental Monitoring Locations Map- 2 Mile Radius
- 8. Environmental Monitoring Locations Map- 20 Mile Radius*
- 9. 5 Mile Sector and Road Map with Field Data*
- These maps are vaulted along with this census; copies of this census will not contain a copy of these maps unless specifically requested.
45
Evaluation of the 2005 Land Use Census The results of the 2005 Land Use Census were reviewed for impact on the Radiological Environmental Monitoring Program (REMP). The specific areas reviewed, that could be affected by changes found in the land use census, were the sampling requirements for milk, broadleaf vegetation and food products.
Reviewing the milk sampling requirements from the ODCM Table 3.12-1 requires that samples are to be obtained from milking animals in three locations within a 5 km distance having the highest potential dose. If none are available, samples are acceptable from milking animals in locations 5 to 8 km distance where doses are calculated to be greater than I mrem per year. A sample is also required at a control location. There are currently no identified milking animals (cow or goat) within the specified distances therefore, there will be no milk sampled during the year 2005.
Since not all milk samples are available, the broadleaf vegetation sampling specified in ODCMl Table 3.12-1 is being performed. Broadleaf sample requirements are such that samples of broadleaf vegetation are to be collected from each of two offsite locations of the highest predicted annual average D/Q if milk sampling is not performed at all the required locations.
Currently, broadleaf vegetation samples are collected at two indicator locations (N - 1.45 and SW - 1.0) and one control location (SW - 13.5). These indicator locations are near the site boundary in sectors where broadleaf vegetation is available and D/Q is high. Therefore, no change to the broadleaf sampling program is required.
Food product sample requirements of ODCM Table 3.12-1 requires that one sample of each principal class of food product be collected from any area that is irrigated with water in which liquic plant waste has been discharged. Of the gardens identified in the land use census, no gardens are located in any area that irrigates with water in which liquid plant wastes are discharged. Currently, food products are sampled from one indicator location (ENE - 9.0) when in season. The indicator location for ENE-9.0 for pecans at time of harvest will be continued since it is a major source of food products sold to the public.
The 2005 Land Use Census did not identify any locations that are "available for sampling" and that would yield a calculated dose 20% greater than at the current sampling locations.
Calculated values for the associated X/Q and D/Q values for each controlling receptor location and pathway are included along with the receptor distances in the data tables of this land use census. The values used to determine potential dose due to radioactive effluent discharges are the highest calculated values based on annual average values. The annual average X/Q used for dose calculations is 3.30E-6, tritium X/Q is 4.36E-6, and the D/Q value is 3.34 E-8. All these values are conservative based on the 2004 Land Use Census data and therefore no changes are required in the dose calculation parameters as verified by the field data.
- X/Q units are Sec/cubic meter
- D/Q units are inverse square meters 46
Nearest Resident by Sector, Distance, X/Q and D/Q Sector Distance (Miles) X/Q D/Q N 2.2 9.28E-07 5.32E-09 NNE, 2.2 5.58E-07 2.90E-09 NE 2.2 3.92E-07 1.42E-09 ENE 2.4 2.58E-07 7.08E-10 E 2.4 3.02E-07 6.62E-10 ESE 2.0 4.70E-07 1.20E-09 SE 1.9 8.30E-07 3.40E-09 SSE 1.5 1.1 OE-06 6.60E-09 S 1.5 8.50E-07 5.20E-09 SSW 2.2 3.24E-07 1.41 E-09 SW 1.1 1.40E-06 5.50E-09 WSW 1.0 1.80E-06 6.50E-09 W 1.6 7.64E-07 2.50E-09 WN\V 3.0 3.76E-07 1.07E-09 NW 2.7 6.98E-07 2.24E-09 NNW 2.8 5.28E-07 2.1 OE-09 Note: The Annual Average X/Q used for dose calculations is 3.30E-06 sec/cubic meter.
The Tritium value X/Q used for dose calculations is 4.36E-06 sec/cubic meter.
The Annual Average D/Q used for dose calculations is 3.34E-08 inverse square meters.
47
Nearest Garden by Sector, Distance and D/Q ScrDistance (Miles) D/Q N None None NNE 3.6 8.92E-1OI NE4.2 3.12E-10 ENE 2.5 6.IOE-10 E None None ESE 4.9 2.05E-10 SE 2.6 1.51 E-09 SSE 3.4 9.45E-10 S None None SSW' None None SW 1.8 2.11E-9 WSxV None None W None None WNW None None NW None None NNW None None 48
Nearest Milk Animal by Sector, Distance and D/Q Sector Distance (Miles) D/Q N None None NNE. None None NE None None ENE None None E None None ESE None None SE None None SSE None None S None None SSW None None SW None None WSWV None None W None None WNWiV None None NW None None NNW None None 49
Population by Sector and Distance Sect r0-1 1-2 2-3 3-4 4-5 Total N l- 6 40 110 156 NNE - - 16 123 43 182 NE - - 93 123 314 530 ENE, - - 125 16 24 165 E - - 120 232 38 390 ESE - - 43 110 160 313 SE - 27 112 112 115 366 SSE - 48 99 64 2190 2401 S - 40 104 62 168 374 SSN- - 3 3 51 57 SW - 75 3 56 59 193 WSW - 338 6 16 - 360 W - 35 6 27 27 95 WN' - - - 59 80 139 NW - 8 - 3 11 NN\V - - 3 51 32 86 TOTAL - 563 747 1094 3414 5818 Based on an average of 2.66 residents per house. This average was obtained from North Central Texas Council of Governments for Hood and Somervell Counties and is derived from an average residents per house of 2.57 and 2.74, respectively.
50
Environmental Sample Locations Table Sampling Point Location Sample Type*
Al N-1.45 (Squaw Creek Park) A A2 N-9.4 (Granbury) A A3 E-3.5 (Children's Home) A A4 SSE-4.5 (Glen Rose) A A5 S/SSW-1.2 A A6 SW-12.3 (CONTROL) A A7 SW/WSW-0.95 A A8 NW-1.0 A RI N-1.45 (Squaw Creek Park) R R2 N-4.4 R R3 N-6.5 R R4 N-9.4 (Granbury) R R5 NNE-1.I R R6 NNE-5.65 R R7 NE-1.7 R R8 NE-4.8 R R9 ENE-2.5 R RIO ENE-5.0 R R 11 E-0.5 R Rl2 E-1.9 R R13 E-3.5 (Children's Home) R R14 E-4.2 R R15 ESE-1.4 R R16 ESE-4.7 R R17 SE-1.3 R R18 SE-3.85 R 51
Environmental Sample Locations Table (cont.)
Sampling Point Location Sample Type*
R19 SE-4.6 R R20 SSE-1.3 R R21 SSE-4.4 (Glen Rose) R R22 SSE-4.5 (Glen Rose) R R23 S-1.5 R R24 S-4.2 R R25 SSW-1.1 R R26 SSW-4.4 (State Park) R R27 SW-0.9 R R28 SW-4.8 (Girl Scout Camp) R R29 SW-12.3 (CONTROL) R R30 WSW-1.0 R R31 WSW-5.35 R R32 WSWN'-7.0 (CONTROL) R R33 W-1.0 R R34 W-2.0 R R35 W-5.5 R R36 WNW-1.0 R R37 WNW-5.0 R R38 WNW-6.7 R R39 NW-1.0 R R40 NW-5.7 R R41 NW-9.9 (Tolar) R R42 NNW-1.35 R R43 NNW-4.6 R 52
Environmental Sample Locations Table (cont.)
Sampling Point Location Sample Type*
SWI N-1.5 (Squaw Creek Reservoir Marina) SW SW2 N-9.9 (Lake Granbury) SW/DW' SW3 N-I 9.3 (CONTROL-Brazos River) SW SW4 NE-7.4 (Lake Granbury) SW SW5 ESE-1.4 (Squaw Creek Reservoir) SW2 SW6 NNW-0.1 (Squaw Creek Reservoir) SW/DW3 GW1 W-1.2 (NOSF Potable Water) GW GW2 WSW-0.1 (Plant Potable Water) GW3 4, GW3 SSE-4.6 (Glen Rose) GW4 GW4 N-9.8 (Granbury) GW'.4 GW5 N-1.45 (Squaw Creek Park) GW4 SSI NNE-1.0 (Squaw Creek Reservoir) SS SS2 N-9.9 (Lake Granbury) SS SS3 NE-7.4 (Lake Granbury) SS SS4 SE-5.3 (Squaw Creek) SS Fl ENE-2.0 (Squaw Creek Reservoir)
F2 NNE-8.0 (Lake Granbury) F FPI ENE-9.0 (Leonard Bros. Pecan Farm) FP BLI N-1.45 BL BL2 SW-1.0 BLs BL3 SW-13.5 (CONTROL) BL5 DW - Drinking Water GW - Ground Water; SS - Shoreline Sediments; fvi - Milk; F - Fish; FP - Food Products; BL - Broadleaf Vegetation.
53
I.--
NOTES:
1)The municipal water system for the City of Granbury is supplied by surface water from Lake Granbury (location SW2) and ground water (location GW4). Each of these supplies is sampled. These samples are not required for compliance with Radiological Effluent Control 3/4.12.1, Table 3.12-1, because they are not affected by plant discharges.
- 2) This sample (location SW6) is representative of discharges from Squaw Creek Reservoir both down Squaw Creek and to Lake Granbury via the return line to Lake Granbury if used.
- 3) Plant potable water could be supplied by surface water from Squaw Creek Reservoir (location SW6) but is normally supplied by ground water from onsite wells (location GW2). Each of these possible sources of water are sampled.
- 4) Ground water supplies in the plant site area are not affected by plant liquid effluents as discussed in CPSES FSAR Section 2.4.13 and are therefore not required to be monitored for radioactivity to meet the requirements of the Radiological Effluent Control 3/4.12.1, Table 3.12-1.
- 5) Broadleaf sampling will be performed at the specified locations if milk samples are unavailable from any location.
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Environmental Sample Locations Malp - 2 :Mile Raudius 55