Text

Radioactive Effluent Release Report
	ML13168A039
Person / Time
Site:	South Texas
Issue date:	04/30/2013
From:	Reynolds K; South Texas
To:	; Office of Nuclear Reactor Regulation
References
	NOC-AE-13003000, STI: 33689068
	Download: ML13168A039 (120)
	v • d • e

2012 Radioactive Effluent Release Report SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION Completed by Generation in accordance with Technical Specifications for United States Nuclear Regulatory Commission License Nos.

NPF-76 & NPF-80 April 2013 Authored by: Kim W. Reynolds Effluent Chemist Chemistry Division Technical Review: James Wirths, IV Staff Chemist Chemistry Division Approved by: _______________________________________

Daniel J. Bryant Manager Chemistry Division 0PGP03ZX0007, Preparation of the Radioactive Effluent Release Report South Texas Identification (STI): 33672694

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT TABLE OF CONTENTS TABLE OF CONTENTS PAGE

SUMMARY

TAB Summary and Introduction ....................................................................................................................1-1 EFFLUENT PROGRAM TAB Supplemental Information for Effluent and Waste Disposal...............................................................2-1 Regulatory Limits Effluent Concentrations Limits Average Energy (Million Electron Volts/Disintegration)

Measurement and Approximations of Total Activity Batch Releases Abnormal (Unplanned) Releases Estimate of Total Error Solid Waste Shipments Radiological Impact on Man Meteorological Data Lower Limit of Detection Dose to Members of the Public Technical Specifications and Offsite Dose Calculation Manual Controls Reporting Requirements............................................................................................................................................3-1 Offsite Dose Calculation Manual Changes Annual Land Use Census Radioactive Waste Treatment System Design Modification Description Inoperable Effluent Monitoring Instrumentation Explanation Gas Storage Tank Curie Limit Violation Description Unprotected Outdoor Tank Curie Limit Violation Description Abnormal (Unplanned) Release Description Radioactive Waste Process Control Program Changes RADIOLOGICAL DATA Gaseous Effluents.....................................................................................................................................4-1 Liquid Effluents .......................................................................................................................................5-1 Solid Waste and Irradiated Fuel Shipments..........................................................................................6-1 i

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT TABLE OF CONTENTS TABLE OF CONTENTS PAGE DOSE DATA TAB Dose Accumulations.................................................................................................................................7-1 Results of the Direct Radiation Measurement Program ......................................................................8-1 METEOROLOGICAL DATA TAB Joint Frequency Tables ...........................................................................................................................9-1 Joint Frequency Tables for First Quarter Joint Frequency Tables for Second Quarter Joint Frequency Tables for Third Quarter Joint Frequency Tables for Fourth Quarter Joint Frequency Tables for First Quarter Batch Release Joint Frequency Tables for Second Quarter Batch Release (Omitted)(1)

Joint Frequency Tables for Third Quarter Batch Release (Omitted)(1)

Joint Frequency Tables for Fourth Quarter Batch Release (1)

Gaseous Batch Releases were not performed during the second and third quarters of 2012 as the values of these tables would be null or zero.

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RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Summary Tab Summary Tab

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Summary Tab INTENTIONALLY LEFT BLANK

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Summary and Introduction consumes 21 kilograms (46 pounds) of fish taken from Little Robbins Slough. This individual receives a submersion dose from noble gases and dose from inhaled radioactive particulates, radioiodines, carbon-14, and tritium. This hypothetical adult is assumed to consume 64 kilograms (140 pounds) of vegetables grown at the residence and consumes 110 kilograms (240 pounds) of meat from livestock grazed at the residence. This estimated total body dose is calculated using models and exposure pathways described in our Offsite Dose Calculation Manual for a hypothetical individual offsite. Other dose estimates for Members of the Public onsite are listed in the report using exposure pathways not addressed by standard dose calculation methods.

Doses from releases to the environment at the South Texas Project Electric Generating Station have historically been and continue to be well below regulatory limits as shown in the following figure. Carbon-14 accounted for over seventy percent of the Total Body Dose reported in gaseous effluents. Members of the public received negligible additional radiation due to the operation of the South Texas Project. This Radioactive Effluent Release Report summarizes the data describing the radioactive liquid and gaseous releases from the South Texas Project Electric Generating Station during 2012. The radioactive effluents from the South Texas Project are effectively monitored and controlled in accordance with regulatory requirements.

0.260 0.240 1% of REGULATORY LIMIT (25 0.220 millirem) 40CFR190 0.200 0.180 0.160 millirem 0.140 0.120 0.100 0.080 0.060 0.040 0.027 0.022 0.017 0.016 0.023 0.023 0.023 0.013 0.012 0.014 0.014 0.009 0.018 0.017 0.006 0.010 0.016 0.017 0.020 0.000 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 YEAR FIGURE 1-2 THEORETICAL TOTAL BODY DOSE FOR ALL PATHWAYS Liquid and gaseous discharges from the South Texas Project are continuously monitored for radioactive content. Samples are also collected from ventilation systems and liquid discharges and analyzed for radioactivity. The sample and analysis methods are verified and augmented using an environmental laboratory. Radioactivity monitors continuously sample the ventilation exhaust systems. On the liquid discharge lines, radioactivity monitors automatically divert or isolate liquid effluents if the radioactivity is higher than expected.

These monitors are also equipped with remote alarm indications in the control rooms and health physics offices.

Prior to and during power operation, the South Texas Project is required to evaluate radioactive material in the environment. We are committed to sampling and analyzing 1-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Summary and Introduction environmental samples for radioactivity to support our Radiological Environmental Monitoring Program. The results of these environmental samples are reported in our Annual Environmental Operating Report. These environmental measurements affirm the accuracy of our sampling and analysis program.

The radiation monitors and the sampling and analysis program, provide an accurate determination of the type and quantity of radioactive materials released in plant effluents.

Liquid effluents are directed to the Main Cooling Reservoir that is located entirely within the site boundary. The South Texas Project continues to aggressively pursue the reduction of radioactive material in liquid effluents consistent with prudent industry practices.

Each year, the effluent monitoring results are summarized in this report and a hypothetical radiation dose to the population in the surrounding area is calculated based on gaseous radioactive effluents, meteorological conditions and liquid radioactive effluents. The hypothetical dose assumes credible paths for radioactive material to reach a member of the public, such as consumption of vegetables from a garden, fish from the river, inhalation, and direct exposure. The highest potential hypothetical dose to an individual at the site boundary was calculated to be less than one millirem or approximately an additional day of radiation exposure from natural radiation sources. The information presented in this report demonstrates that plant operation is consistently controlled to ensure that radioactive effluents remain below regulatory limits and to ensure protection of the public and the environment.

INTRODUCTION This Radioactive Effluent Release Report is submitted for the period January 1, 2012, through December 31, 2012, in accordance with Appendix A of License Nos. NPF-76 and NPF-80, Technical Specifications and the Offsite Dose Calculation Manual.

A single submittal is made for both units combining those sections that are common.

Separate tables of releases and release totals are included where separate processing systems exist.

This report includes an annual summary of hourly meteorological measurements taken during each quarter. This data appears as tables of wind direction and wind speed by atmospheric stability class. All assessments of radiation doses are performed in accordance with the Offsite Dose Calculation Manual.

Minimal quantities of radioactivity were released during 2012. Liquid effluents are discharged to the on-site Main Cooling Reservoir and subsequently released offsite. The radioactivity released in liquids beyond the site boundary was estimated using the South Texas Project Electric Generating Station Offsite Dose Calculation Manual. Solid radioactive waste is shipped offsite for disposal. Table 1-1 lists a brief summary of the radioactive effluents and solid waste attributable to the station.

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RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Summary and Introduction Table 1-1 TYPE OF EFFLUENT TYPE DESTINATION VOLUME CUBIC CURIES RADIOACTIVE METER MATERIAL NOBLE GAS GAS OFFSITE 6.0E+09(2) 4.5E+00 PARTICULATE AND GAS OFFSITE 6.0E+09(2) 2.8E-04 IODINES TRITIUM &

GAS OFFSITE 6.0E+09(2) 1.4E+02 CARBON-14 (3)

TRITIUM LIQUID OFFSITE 4.8E+06 2.2E+02(5)

FISSION AND ACTIVATION LIQUID OFFSITE 4.8E+06(3) 2.2E-04(5)

PRODUCTS TRITIUM LIQUID ON-SITE 3.2E+04(4) 1.7E+03 FISSION AND ACTIVATION LIQUID ON-SITE 3.2E+04(4) 1.2E-02 PRODUCTS(1)

SPENT RESINS AND SOLID FOR BURIAL 1.8E+01 9.0E+00 FILTERS DRY COMPRESSIBLE SOLID FOR BURIAL 4.8E+01 1.6E+00 WASTE Low Level Exempt Quantities of SOLID FOR BURIAL 3.1E+01 1.2E-06 secondary resin, sludge, and oily sludge (1)

Excludes dissolved and entrained gases.

(2)

Unit Vent Release Volume for Units 1 and 2.

(3)

Estimated MCR seepage to identified receptors.

(4)

Total volume of liquid radioactive effluents discharged to the MCR.

(5)

Reference ODCM, Table B4-1 for Matagorda Bay.

Tritium was the largest contributor to the offsite doses from radioactive liquid effluents.

The offsite doses are well below any regulatory limit and significantly less than the average annual radiation exposure to people in the United States from all sources (620 millirem).

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RADIOACTIVE EFFLUENT RELEASE REPORT 2010 SOUTH TEXAS PROJECT Effluent Program Tab Effluent Program Tab

RADIOACTIVE EFFLUENT RELEASE REPORT 2010 SOUTH TEXAS PROJECT Effluent Program Tab INTENTIONALLY LEFT BLANK

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal Supplemental Information for Effluent and Waste Disposal 2-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal Supplemental Information for Effluent and Waste Disposal The South Texas Project Electric Generating Station is located on 49,500,000 square meters (12,220 acres) in Matagorda County, Texas, approximately 24,000 meters (15 miles) southwest of Bay City along the west bank of the Colorado River. The South Texas Project is currently owned by NRG Energy, Inc., Austin Energy, and CPS Energy as tenants in common. The Houston Lighting & Power Company was the original project manager of the South Texas Project and was responsible for the engineering, design, licensing, construction, startup, and initial operation of the two unit facility. In 1997, the STP Nuclear Operating Company, assumed operational control of the South Texas Project and responsibility for implementation of the Radioactive Effluent Control Program.

The South Texas Project has two Westinghouse pressurized water reactors. The nominal net electrical capacity of each unit is 1,250 megawatts-electric (MWe). Unit 1 received a low-power testing license on August 21, 1987, obtained initial criticality on March 8, 1988, and was declared commercially operational on August 25, 1988. Unit 2 received a low-power testing license on December 16, 1988, obtained initial criticality on March 12, 1989, and was declared commercially operational on June 19, 1989. The South Texas Project initiated project activities in 2008 to pursue renewal of the operating licenses for Units 1 and 2 from the Nuclear Regulatory Commission (NRC). The license renewal application was submitted to the Nuclear Regulatory Commission in October of 2010 to request authorization to operate STP, Units 1 and 2, for an additional 20 years beyond the period specified in the current licenses. The Nuclear Regulatory Commission determined that the South Texas Project submittal was sufficient to enable them to undertake a review of the application. The Nuclear Regulatory Commission review process is intended to ensure that the plants original design and current conditions and programs can allow the facility to continue operating safely beyond its original license. The combined units currently produce enough electricity to serve more than two million homes and businesses throughout Texas. With nearly 1,200 baseline employees, the STP Nuclear Operating Company is the largest employer and source of revenue for Matagorda County.

Regulatory Limits Fission and Activation Gases The air dose due to noble gases released in gaseous effluents from each unit to areas at and beyond the Site Boundary shall be limited to the following:

During any calendar quarter: Less than or equal to 5 millirads for gamma radiation and less than or equal to 10 millirads for beta radiation, and During any calendar year: Less than or equal to 10 millirads for gamma radiation and less than or equal to 20 millirads for beta radiation.

Iodines and Particulates, Half-Lives > 8 days The dose to a Member of the Public from Iodine-131, Iodine-133, tritium, and all radionuclides in particulate form with half-lives greater than eight days in gaseous effluents released, from each unit, to areas at and beyond the Site Boundary shall be limited to the following:

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RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal During any calendar quarter: Less than or equal to 7.5 millirems to any organ; and During any calendar year: Less than or equal to 15 millirems to any organ.

Liquid Effluents The dose or dose commitment to a Member of the Public from radioactive materials in liquid effluents released from each unit to Unrestricted Areas shall be limited to:

During any calendar quarter: Less than or equal to 1.5 millirems to the whole body and to less than or equal to 5 millirems to any organ; and During any calendar year: Less than or equal to 3 millirems to the whole body and to less than or equal to 10 millirems to any organ.

Effluent Concentrations Limits Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site to areas at and beyond the Site Boundary shall be limited to the following:

For noble gases: Less than or equal to 500 millirems/year to the whole body and less than or equal to 3000 millirems/year to the skin; and For Iodine-131, Iodine-133, tritium and all radionuclides in particulate form with half-lives greater than eight days: Less than or equal to 1500 millirems/year to any organ.

Liquid Effluents The concentration of radioactive material released in liquid effluents to Unrestricted Areas shall be limited to 10 times the concentrations specified in 10CFR, Part 20, Appendix B, Table II, Column 2, for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2.0E-04 microcurie/milliliter total activity.

Average Energy (Million Electron Volts/Disintegration)

The Average Energy (or E-bar) shall be the average (weighted in proportion to the concentration of each radionuclide in the reactor coolant at the time of sampling) of the sum of the average beta and gamma energies per disintegration for the isotopes other than Iodines, with half-lives greater than 15 minutes, making up at least 95% of the total non-iodine activity in the coolant. The following average energy values are based on grab sample analyses from each reactor coolant system with both samples being collected during October 2012.

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RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal Reactor Coolant Liquid including tritium, fission products (excluding radioiodines), and corrosion and activation products E-bar (Million Electron Volts/Disintegration) 0.135 Unit 1 0.091 Unit 2 The average energy (E-bar) values of the radionuclide mixture in gaseous releases of fission and activation gases are based on noble gases released during the reporting period.

Gaseous Effluents only Noble Gases E-bar (Million Electron Volts/Disintegration) 1.17 Unit 1 0.96 Unit 2 Measurement and Approximations of Total Activity The following discussions detail the methods used to measure and approximate total activity for the following:

Gaseous Effluents: Fission and Activation Gases, Tritium, Iodines and Particulates Liquid Effluents: Fission and Activation Products, Tritium, Dissolved and Entrained Gases Tables A3-1 and A4-1 of the South Texas Project Electric Generating Station Offsite Dose Calculation Manual give sampling frequencies and lower limit of detection requirements for the analysis of liquid and gaseous effluent streams.

Gaseous Effluents Analytical Methods For Gaseous Releases from the Reactor Containment Building Monthly pre-release grab samples are collected from the plant Reactor Containment Building atmosphere. These samples are analyzed on a Gamma Spectroscopy System utilizing high purity germanium detectors for noble gas, iodine and particulate activity. Tritium specific radioactivity is measured using Liquid Scintillation Counting techniques.

The radionuclide concentrations obtained are used in conjunction with the gross noble gas release rate monitoring data collected by the radiation monitoring system to estimate the release rate of each radionuclide in the effluent streams. The noble gas release rate data collected by the unit vent radiation monitor is quantified and reported as continuous mode of release. The data from the unit vent radiation monitor in conjunction with the grab sample results of the Reactor Containment Building atmosphere are used to quantify the radioactive material released.

Analytical Methods For Continuous Gaseous Releases Periodic noble gas and tritium grab samples are taken from the continuous release points such as the Unit Vent. Continuous sampling for particulates and iodine is also performed on effluent streams. These samples are analyzed for tritium and gamma radionuclides, as 2-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal described above for gaseous releases. Strontium-89, Strontium-90, and gross alpha analyses were performed by the on-site Radiological Services Laboratory.

Noble gas quantification is performed by the plant radiation monitoring system using noble gas grab sample results and the gross noble gas release rate monitor.

The methodology used for estimating the quantity of carbon-14 released to the environment is described in the following section Dose to Member of the Public from Radioactive Effluents Including Carbon-14.

Secondary system liquid grab samples in conjunction with the mass of the secondary coolant lost are used for quantifying secondary steam releases. The radioactive material in the steam is based on grab sample results of the secondary liquid. The secondary liquid is analyzed for gamma emitters and tritium.

Liquid Effluents Analytical Methods For Liquid Releases Liquid batch releases include waste liquid treated by the liquid waste processing system and secondary system chemical regeneration waste. Liquid effluents resulting from primary to secondary leakage or other plant operations are continuously monitored and are tracked as continuous releases. For batch releases, representative pre-release grab samples are taken and analyzed in accordance with Table A3-1 of the Offsite Dose Calculation Manual. For continuous releases, representative samples are collected weekly and analyzed. Radionuclide analyses are performed using a Gamma Spectroscopy System. Aliquots of each pre-release batch sample are composited in accordance with the requirements in Table A3-1 of the Offsite Dose Calculation Manual. Tritium concentrations are determined using Liquid Scintillation Counting techniques. Dissolved and entrained gas concentrations are determined by counting grab samples on the Gamma Spectroscopy System. Strontium-89, Strontium-90, gross alpha, Iron-55, and Nickel-63 determinations are performed by the on-site Radiological Services Laboratory. The radionuclide concentrations obtained are used with the total volume for each batch release.

Batch Releases Liquid and gaseous summaries are compiled from permits generated using a computer-based effluent management system and plant procedures. Liquid batch releases are accounted for by individual permits. Gaseous batch releases are accounted for by monthly permits and consist of reactor containment purges for the purpose of reducing radioactive material concentrations.

Batch times represent the actual period of releases and the periods that the purge valves were open.

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RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal Liquid (Unit 1)

Liquid (Unit 1) Quarter 1 Quarter 2 Quarter 3 Quarter 4

a. Number of batch releases 31 14 22 33

b. Total time period for batch releases (minutes) 1923 887 1382 2066

c. Maximum time period for a batch release (minutes) 68 69 68 71

d. Average time period for batch releases (minutes) 62 63 63 63

e. Minimum time period for a batch release (minutes) 57 55 55 49 Gaseous (Unit 1)

Gaseous (Unit 1) Quarter 1 Quarter 2 Quarter 3 Quarter 4

a. Number of batch releases 0 0 0 6

b. Total time period for batch releases (minutes) 0 0 0 49800

c. Maximum time period for a batch release (minutes) 0 0 0 27060

d. Average time period for batch releases (minutes) 0 0 0 8300

e. Minimum time period for a batch release (minutes) 0 0 0 300 Liquid (Unit 2)

Liquid (Unit 2) Quarter 1 Quarter 2 Quarter 3 Quarter 4

a. Number of batch releases 3 16 5 5

b. Total time period for batch releases (minutes) 178 971 312 310

c. Maximum time period for a batch release (minutes) 60 64 63 62

d. Average time period for batch releases (minutes) 59 61 62 62

e. Minimum time period for a batch release (minutes) 59 51 61 62 2-6

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal Gaseous (Unit 2)

Gaseous (Unit 2) Quarter 1 Quarter 2 Quarter 3 Quarter 4

a. Number of batch releases 1 0 0 0

b. Total time period for batch releases (minutes) 720 0 0 0

c. Maximum time period for a batch release (minutes) 720 0 0 0

d. Average time period for batch releases (minutes) 720 0 0 0

e. Minimum time period for a batch release (minutes) 720 0 0 0 Abnormal (Unplanned) Releases No abnormal releases occurred during this reporting period.

Estimate of Total Error Estimate of Error for Liquid Effluents The maximum error associated with volume and flow measurements, based upon plant calibration practice, is estimated to be + 1.27%. The error associated with the flow measurement is small in relation to the counting uncertainty of the radionuclide concentration analysis.

The average uncertainty associated with counting measurements is 10% or less at the 95%

confidence interval.

The error associated with dilution volume is estimated to be + 10%.

Estimate of Error for Gaseous Effluents The maximum error associated with monitor readings, sample flow, vent flow, sample collection, monitor calibration and laboratory procedures are collectively estimated to be:

Fission and Activation Gases Low Activity (less than 10 microcurie per second) + 100%

Fission and Activation Gases High Activity (greater than or equal to 10 microcurie per second) + 20%

Iodines + 25%

Particulates + 25%

Tritium + 50%

The average uncertainty associated with counting measurements is 10% or less at the 95%

confidence interval for fission and activation gases, iodines, particulates and tritium.

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RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal Estimate of Error for Solid Radioactive Waste The error associated with determining the volume of solid radioactive waste shipments is estimated to be + 1%. The error associated with determining the filter media, spent primary resins, and spent secondary resins radioactivity and radioactivity from other solid radioactive waste shipments is estimated to be within a factor of two of the real value and is due primarily to waste stream sampling uncertainty. The error associated with determining the radioactivity of dry active solid radioactive waste shipments is estimated to be within a factor of three of the real value.

Solid Waste Shipments A total of nine shipments of radioactive filter media, spent resins, dry active and other wastes were made during the reporting period. Additionally two shipments of exempt quantities were made to an industrial landfill in Texas. A summary of the data is provided in Section 6, Solid Waste and Irradiated Fuel Shipments. This data is based upon waste generated from Units 1 and 2.

Radiological Impact on Man The data for the period January 1, 2012, through December 31, 2012, is provided in the Dose Accumulation (Section 7) and the Summary of Direct Radiation Table 8-1 (Section 8). The following dilution factors and dilution water flows were used for assessing the radiation doses due to radioactive liquid effluents released to unrestricted areas.

Receptor Location ODCM(1) Dilution Water Flow Dilution Water Dilution Water Dilution Factor Cubic Feet/Second Flow Liters/Year Flow Liters/Quarter Colorado River 1.00E+00 6.00E+02 5.36E+11 1.34E+11 Matagorda Bay 1.63E+02 9.78E+04 8.73E+13 2.18E+13 Little Robbins 3.05E-02 1.83E+01 1.63E+10 4.08E+09 Slough Area (1)

Offsite Dose Calculation Manual factor The dilution water flow used to estimate the individual dose due to ingestion of saltwater fish and saltwater invertebrates (shrimp) harvested from the Colorado River was 5.36E+11 liters per year for the years of 1989 through 2012. The dilution water flow used to estimate the individual dose due to ingestion of saltwater fish and saltwater invertebrates harvested from the Matagorda Bay was 8.73E+13 liters per year for the years of 1993 through 2012 as the result of a diversion channel that routes the Colorado River into Matagorda Bay. The dilution water flow used to estimate the individual dose due to ingestion of freshwater fish from the Little Robbins Slough Area was 1.63E+10 liters per year for the years 1989 through 2012. These dilution water flows were also used for estimating individual dose due to shoreline deposits. The radioactive material reported in the Liquid Effluent tables is the amount released to the Main Cooling Reservoir and does not contribute to dose until the radioactive material is released to unrestricted areas. In order to estimate the doses due to liquid effluents, the radioactive material reported must be 2-8

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal adjusted by the values listed in the Offsite Dose Calculation Manual, Table B4-1, Radionuclide Fractions N(i), Reaching Off-site Bodies of Water.

Meteorological Data The 2012 meteorological data is presented in the form of joint frequency tables. Each quarter contains eight tables, one for each stability class and one for all classes combined.

A second set of joint frequency tables is provided for time periods when the reactor containment building fans were operating to remove radioactive material from the containment for personnel protection reasons. These containment purges are classified as batch releases. Batch releases were not performed during the second and third quarters. These joint frequency tables for first and third quarters were omitted as the values were null or zero.

Lower Limit of Detection The Lower Limit of Detection (an a priori limit) is defined as the smallest concentration of radioactive material in a sample that will yield a net count above system background that will be detected with 95% probability, and only a 5% probability of falsely concluding that a blank observation represents a "real" signal. A zero (0) value in the attached tables indicates no activity detected.

Dose to Member of the Public Dose to Member of the Public from Direct Radiation Outside the Site Boundary The Offsite Dose Calculation Manual includes the direct radiation from plant structures as a component to the dose to a hypothetical, highest exposed Member of the Public located off site due to plant operations. The Offsite Dose Calculation Manual allows measurements made near the plant structures to be used in these calculations following suitable adjustments for distance and exposure time. In 2012, Thermoluminescent Dosimeters were placed along the protected area fence or the concrete intrusion barriers surrounding Units 1 and 2 of the South Texas Project, on the fence of the Onsite Staging Facility (Outside Storage), along the walls of OSF Warehouse D, and around the Old Steam Generator Storage Facility as pictured in Figure 8-1 of Section 8. The results of these measurements are summarized in Table 8-1 of Section 8. The table shows that in 2012, Thermoluminescent Dosimeter measurements were typical of previous years readings.

In accordance with the ODCM, the dose due to direct radiation can be estimated taking the highest TLD measurement, less background, and correcting for the distance to the site boundary using Dosedirect = TLD * (PA)2 / (RD)2 Where TLD = background corrected TLD annual dose, mR/yr PA = distance from source of radiation to the TLD location, meters RD = distance from the source of radiation to the closest site boundary, meters 2-9

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal The TLD average dose rate is the average of the four quarterly values for the highest location less the quarterly average background at the site boundary. The highest average TLD dose rate was 18.2 mR/quarter for station #22 which is located in the vicinity of the Onsite Staging Facility (outside storage), as shown in Figure 8-1. The value for TLD may be calculated as shown below where the historical site boundary background of 15.4 mR/quarter is used to find the net rate attributable to waste stored onsite.

TLD = 18.2 - 15.4 = 2.8 mR/quarter or TLD = (2.8 mR/quarter) * (4 quarters/yr) = 11.2 mrem/yr assuming a mR is about equal to a mrem The approximate distances PA and RD are estimated using field measurements and global positioning satellite technology. The total dose to a hypothetical member of the public at the site boundary could be calculated as below:

Dosedirect = (11.2 mrem/yr) * (24.4 meters)2 / (960 meters)2 = 0.007 mrem/yr This assumes someone is positioned permanently at the fence near the Onsite Storage Facility. A real person might traverse this area twice daily (to and from work) for a total exposure time of Exposure time (hypothetical person) = (250 work days per year) * (4 minutes per trip) *

(2 trips per day)

Exposure time (hypothetical person) = 2000 minutes = 0.00381 yr Dosedirect = 0.007 mrem/yr

0.00381 yr = 0.000028 mrem in 2012 In summary, a realistic dose of 0.000028 mrem was possible to a member of the public offsite in 2012 although a hypothetical maximum annual dose rate of 0.007 mrem/yr was calculated at the nearest offsite location.

Dose to Member of the Public from Direct Radiation Inside the Site Boundary A hypothetical Member of the Public inside the site boundary but outside the protected area fence could receive less than one millirem from direct radiation. The most exposed employee on site who is also a member of the public would be a grounds keeper whose job required him to work in the vicinity of Warehouse D for radioactive waste. If such an individual worked 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months once a quarter at the fence where the dose rate was highest, their direct radiation dose could be calculated as follows:

Dose (mrem) = 40 * [(28.2-15.4)+(17.1-15.4)+(18.1-15.4)+(18.2-15.4)] / 366 / 24 = 0.091 mrem where 40 = 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months per quarter times four quarters 28.2 = average dose rate in first quarter, mrem/quarter 17.1 = average dose rate in second quarter, mrem/quarter 18.1 = average dose rate in third quarter, mrem/quarter 18.2 = average dose rate in fourth quarter, mrem/quarter 15.4 = average pre-operation dose rate, mrem/quarter 2-10

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal 366 = days in a year 24 = hours per day Hence, in 2012 a hypothetical member of the public with the highest exposure to direct radiation received about 0.09 mrem from direct radiation.

Dose to Member of the Public from Direct Radiation and Radioactive Effluents Inside the Site Boundary A hypothetical Member of the Public outside the protected area fence but inside the site boundary could receive approximately 0.70 millirem from radioactive effluents due to inhalation and immersion. This dose plus the direct radiation dose would yield 0.79 millirem, a small fraction of the 10 C.F.R. §20.1301 annual limit.

Dose to Member of the Public from Radioactive Effluents Outside the Site Boundary using ODCM Exposure Pathways During 2012, the estimated total body dose to a hypothetical Member of the Public with the highest probability for exposure from radioactive effluents and direct radiation was 0.023 millirem. This total represents approximately 0.09% of the limits of 40 C.F.R. §190. Based on our 2012 Land Use Census, real individuals reside in the West by Southwest Sector, approximately 4,000 meters (2.5 miles) from the site. For dose calculation purposes, the residents at this location are characterized as the theoretically highest exposed individual with regard to food consumption, occupancy, and other uses of the areas in the plant vicinity.

Our dose model assumes that this theoretically highest exposed individual may consume the maximum amount of food with all the food being grown or grazed at the residence. This individual receives shoreline exposure from Little Robbins Slough for 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months per year and consumes 21 kilograms (46 pounds) of fish taken from Little Robbins Slough. This individual receives a submersion dose from noble gases and dose from inhaled radioactive particulates, radioiodines, carbon-14, and tritium. This hypothetical adult is assumed to consume 64 kilograms (140 pounds) of vegetables grown at the residence and consumes 110 kilograms (240 pounds) of meat from livestock grazed at the residence. This estimated total body dose is calculated using models and exposure pathways described in our Offsite Dose Calculation Manual for a hypothetical individual offsite. Other dose estimates for Members of the Public onsite are listed in the report using exposure pathways not addressed by standard dose calculation methods.

Dose to Member of the Public from Radioactive Effluents Outside the Site Boundary using Liquid to Gaseous Receptor Exposure Pathways Consistent with normal operation of the units, approximately nineteen hundred curies of tritium were released to the Main Cooling Reservoir during 2012. Since some portion of the tritium released in liquid effluents evaporates from the Main Cooling Reservoir, this section is included to provide an estimate of offsite dose from that gaseous source per section 4.10 of the ODCM. The Main Cooling Reservoir, with a surface area of about 28,300,000 square meters (7000 acres), is an area source and contributes tritium to the atmosphere. The atmospheric dispersion factor for the WSW sector at 4000 meters was estimated to be 4.01E-07 seconds per cubic meter using the EPA code Iclt3 and 2004 meteorological data. The 2-11

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Supplemental Information for Effluent and Waste Disposal product of X/Q, tritium released to the MCR, and the dose factor for a population age group (87.9, 91.7, 114.2 or 20.5 millirem-cubic meter per second-curie for age groups adult, teen, child and infant, respectively) generated an estimated whole body dose of 0.1 millirem for the highest exposed population group, a small fraction of the limits of 40 C.F.R. §190.

Dose to Member of the Public from Radioactive Effluents including Carbon-14 Carbon-14 was reported as a radioactive effluent in 2010 for the first time. Carbon-14 is a naturally occurring isotope of carbon. Carbon-14 is formed naturally in the upper atmosphere and is also formed in an operating nuclear reactor, primarily through activation of oxygen molecules. The quantity of carbon-14 produced by operating nuclear reactors is significantly less than that produced naturally or from weapons testing.

The NRC published Regulatory Guide 1.21 Revision 1, Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants in 1974. This regulatory guidance recommends the content and format of this report. This report follows the recommendations of Regulatory Guide 1.21, Revision 1. In 2009 the NRC published revision 2 of Regulatory Guide 1.21 based on a risk-informed perspective for reporting principal radionuclides . This document recommended methods for estimating and reporting the quantity of carbon-14 released in gaseous effluents. The quantity of carbon-14 released from each unit was estimated using NUREG-0017, Calculation of Releases of Radioactive Materials in Gaseous and Liquid Effluents from Pressurized Water Reactors PWR-GALE Code, April 1985. A value of 7.3 curies of carbon-14 was used for each unit. The Semiannual Summation of All Releases by Quarter for All Airborne Effluents found in section 4-2 of this report lists carbon-14 in a similar manner as tritium.

ODCM dose factors were used for estimating doses to members of the public and the doses due to carbon-14 are included in the Dose Accumulations, Section 7-1 of this report. EPRI Report TR-105715, Characterization of Carbon-14 Generated by the Nuclear Power Industry, November 1995 concluded that the molecular form of carbon-14 produced in gaseous effluent is 75 to 90 percent hydrocarbons (primarily methane) with the remainder in inorganic form (carbon dioxide or carbon monoxide in gas or carbonates in liquid). This report listed the measured molecular forms of carbon-14 in gaseous effluents from two U.S.

and six German commercial pressurized water reactors. The average fraction of inorganic carbon-14 was determined to be 20 percent and the average organic fraction was determined to be 80 percent. The pathway doses were calculated using the average ratio of 1:5 for ingestion pathways, as carbon in the form of hydrocarbons is not absorbed by plants. The radiation doses from STPEGS to the public (including carbon-14) are much lower than regulatory limits and are a very small contributor to the total radiation dose the American public receives each year from natural and manmade sources.

2-12

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Technical Specifications and Offsite Dose Calculation Manual Controls Reporting Requirements Technical Specifications and Offsite Dose Calculation Manual Controls Reporting Requirements 3-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Technical Specifications and Offsite Dose Calculation Manual Controls Reporting Requirements Offsite Dose Calculation Manual Changes (reference, Technical Specifications, 6.13)

The ODCM was not revised in 2012.

Annual Land Use Census (reference, Offsite Dose Calculation Manual Controls, 3.12.2.a)

The Land Use Census verified current nearest residents within five miles. No new residents or receptors were identified within five miles of the site. A diary goat was identified approximately 8,000 meters (5 miles) from the site in the southeast sector. A dose evaluation was performed and this evaluation determined that sampling of dairy milk was not required. The goat milk pathway was activated and was used in the dose calculation model as described in our ODCM.

Radioactive Waste Treatment System Design Modification Description (reference, Offsite Dose Calculation Manual Controls, 6.15)

A review of the work history for 2012 for the solid, liquid and gaseous waste processing systems revealed that no major modifications were installed on these systems in 2012.

Inoperable Effluent Monitoring Instrumentation Explanation (reference, Offsite Dose Calculation Manual Controls, 6.9.1.4)

For 2012, inoperable liquid effluent monitoring instruments were corrected within the time specified in Sections 3.3.3.10 of Offsite Dose Calculation Manual Controls.

For 2012, inoperable gaseous effluent monitoring instruments were corrected within the time specified in Sections 3.3.3.11 of Offsite Dose Calculation Manual Controls.

Gas Storage Tank Curie Limit Violation Description (reference, Offsite Dose Calculation Manual Controls, 6.9.1.4)

The Reactor Coolant System Vacuum Degassing System was not used during this reporting period. Therefore, the quantity of radioactive material in the Reactor Coolant System Vacuum Degassing System Storage Tanks did not exceed the limits set forth in Section 3.11.2.6 of Technical Specifications.

Unprotected Outdoor Tank Curie Limit Violation Description (reference, Offsite Dose Calculation Manual Controls, 6.9.1.4)

There are no Unprotected Outdoor Tanks at South Texas Project Electric Generating Station.

Therefore the quantity of radioactive material in any unprotected outdoor tank did not exceed the limit set forth in Section 3.11.1.4 of Technical Specifications.

Abnormal (Unplanned) Release Description (reference, Offsite Dose Calculation Manual, 6.9.1.4)

No abnormal (unplanned) releases occurred during this reporting period.

3-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Technical Specifications and Offsite Dose Calculation Manual Controls Reporting Requirements Radioactive Waste Process Control Program Changes (reference, Technical Specifications, 6.13)

There were no changes to the Radioactive Waste Process Control Program during this reporting period.

3-3

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Technical Specifications and Offsite Dose Calculation Manual Controls Reporting Requirements INTENTIONALLY LEFT BLANK 3-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Radiological Data Tab Radiological Data Tab

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Radiological Data Tab INTENTIONALLY LEFT BLANK

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents GASEOUS EFFLUENTS 4-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL AIRBORNE EFFLUENTS Unit: 1 Starting : 1-Jan-2012 Ending : 30-Jun-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 1 QUARTER 2 ERROR A. FISSION & ACTIVATION GASES

1. TOTAL RELEASE CURIES 3.71E-01 4.02E-01 100

2. AVERAGE RELEASE uCi/sec 4.72E-02 5.11E-02 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 4.92E-05 5.33E-05 (9.60E+04 uCi/sec)

B. RADIOIODINES

1. IODINE-131 CURIES 0.00E+00 1.60E-09 25

2. AVERAGE RELEASE uCi/sec 0.00E+00 2.03E-10 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 0.00E+00 5.08E-07 (4.00E-02 uCi/sec)

C. PARTICULATES

1. PARTICULATES(HALF-CURIES 3.07E-05 5.17E-05 25 LIVES>8 DAYS)

2. AVERAGE RELEASE uCi/sec 3.91E-06 6.58E-06 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 1.30E-03 2.19E-03 (3.00E-01 uCi/sec)

4. GROSS ALPHA CURIES 0.00E+00 0.00E+00 RADIOACTIVITY D. TRITIUM

1. TOTAL RELEASE CURIES 1.58E+01 2.43E+01 50

2. AVERAGE RELEASE uCi/sec 2.01E+00 3.09E+00 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 1.12E-03 1.72E-03 (1.80E+05 uCi/sec)

E. CARBON-14

1. TOTAL RELEASE CURIES 1.82E+00 1.81E+00 None

2. AVERAGE RELEASE uCi/sec 2.31E-01 2.30E-01 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 2.97E-03 2.95E-03 (7.8E+03 uCi/sec) 4-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY Unit 1 REPORT CATEGORY: SEMIANNUAL AIRBORNE GROUND LEVEL CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: FISSION GASES, IODINES, AND PARTICULATES REPORTING PERIOD: QUARTER # 1 AND QUARTER # 2 YEAR 2012 CONTINUOUS MODE BATCH MODE NUCLIDES UNITS QUARTER 1 QUARTER 2 QUARTER 1 QUARTER 2 RELEASED FISSION GASES Argon-41 CURIES 2.01E-01 2.32E-01 0.00E+00 0.00E+00 Xenon-133 CURIES 1.70E-01 1.69E-01 0.00E+00 0.00E+00 Xenon-135 CURIES 6.99E-04 7.77E-04 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 3.71E-01 4.02E-01 0.00E+00 0.00E+00 IODINES Iodine-131 CURIES 0.00E+00 1.60E-09 0.00E+00 1.60E-09 Iodine-133 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 0.00E+00 1.60E-09 0.00E+00 1.60E-09 PARTICULATES Beryllium-7 CURIES 3.07E-05 5.17E-05 0.00E+00 0.00E+00 Cobalt-58 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cobalt-60 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Chromium-51 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Mercury-203 CURIES 2.15E-09 2.55E-09 0.00E+00 0.00E+00 Manganese-54 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Niobium-95 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Selenium-75 CURIES 1.30E-09 1.06E-09 0.00E+00 0.00E+00 Zirconium-95 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 3.07E-05 5.17E-05 0.00E+00 0.00E+00 OTHER Carbon-14 CURIES 1.82E+00 1.81E+00 0.00E+00 0.00E+00 Hydrogen-3 (Tritium) CURIES 1.58E+01 2.43E+01 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 1.76E+01 2.61E+01 0.00E+00 0.00E+00 4-3

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL AIRBORNE EFFLUENTS Unit: 1 Starting : 1-Jul-2012 Ending : 31-Dec-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 3 QUARTER 4 ERROR A. FISSION & ACTIVATION GASES

1. TOTAL RELEASE CURIES 4.00E-01 1.32E+00 100

2. AVERAGE RELEASE uCi/sec 5.03E-02 1.67E-01 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 5.24E-05 1.73E-04 (9.60E+04 uCi/sec)

B. RADIOIODINES

1. IODINE-131 CURIES 0.00E+00 1.02E-07 25

2. AVERAGE RELEASE uCi/sec 0.00E+00 1.28E-08 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 0.00E+00 3.20E-05 (4.00E-02 uCi/sec)

C. PARTICULATES

1. PARTICULATES(HALF-CURIES 4.04E-05 5.92E-05 25 LIVES>8 DAYS)

2. AVERAGE RELEASE uCi/sec 5.08E-06 7.44E-06 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 1.69E-03 2.48E-03 (3.00E-01 uCi/sec)

4. GROSS ALPHA CURIES 0.00E+00 0.00E+00 RADIOACTIVITY D. TRITIUM

1. TOTAL RELEASE CURIES 1.49E+01 1.55E+01 50

2. AVERAGE RELEASE uCi/sec 1.88E+00 1.95E+00 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 1.04E-03 1.09E-03 (1.80E+05 uCi/sec)

E. CARBON-14

1. TOTAL RELEASE CURIES 1.83E+00 1.84E+00 None

2. AVERAGE RELEASE uCi/sec 2.30E-01 2.31E-01 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 2.95E-03 2.96E-03 (7.8E+03 uCi/sec) 4-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY Unit 1 REPORT CATEGORY: SEMIANNUAL AIRBORNE GROUND LEVEL CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: FISSION GASES, IODINES, AND PARTICULATES REPORTING PERIOD: QUARTER # 3 AND QUARTER # 4 YEAR 2012 CONTINUOUS MODE BATCH MODE NUCLIDES UNITS QUARTER 3 QUARTER 4 QUARTER 3 QUARTER 4 RELEASED FISSION GASES Argon-41 CURIES 2.13E-01 1.69E-01 0.00E+00 7.64E-01 Xenon-133 CURIES 1.86E-01 1.44E-01 0.00E+00 2.47E-01 Xenon-135 CURIES 8.05E-04 3.35E-05 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 4.00E-01 3.13E-01 0.00E+00 1.01E+00 IODINES Iodine-131 CURIES 0.00E+00 0.00E+00 0.00E+00 1.02E-07 Iodine-133 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 0.00E+00 0.00E+00 0.00E+00 1.02E-07 PARTICULATES Beryllium-7 CURIES 4.04E-05 2.15E-05 0.00E+00 1.53E-05 Cobalt-58 CURIES 0.00E+00 2.27E-07 0.00E+00 5.31E-06 Cobalt-60 CURIES 0.00E+00 7.42E-08 0.00E+00 4.26E-06 Chromium-51 CURIES 0.00E+00 5.46E-07 0.00E+00 1.02E-05 Mercury-203 CURIES 4.00E-09 2.85E-09 0.00E+00 4.97E-08 Manganese-54 CURIES 0.00E+00 8.74E-09 0.00E+00 3.52E-07 Niobium-95 CURIES 0.00E+00 2.28E-08 0.00E+00 1.15E-06 Selenium-75 CURIES 1.47E-09 8.85E-09 0.00E+00 1.52E-07 Zirconium-95 CURIES 0.00E+00 1.25E-08 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 4.04E-05 2.24E-05 0.00E+00 3.67E-05 OTHER Carbon-14 CURIES 1.83E+00 1.13E+00 0.00E+00 7.07E-01 Hydrogen-3 (Tritium) CURIES 1.49E+01 5.29E+00 0.00E+00 1.02E+01 TOTAL FOR PERIOD CURIES 1.68E+01 6.42E+00 0.00E+00 1.09E+01 4-5

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL AIRBORNE EFFLUENTS Unit: 2 Starting : 1-Jan-2012 Ending : 30-Jun-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 1 QUARTER 2 ERROR A. FISSION & ACTIVATION GASES

1. TOTAL RELEASE CURIES 4.42E-01 4.87E-01 100

2. AVERAGE RELEASE uCi/sec 5.62E-02 6.19E-02 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 5.85E-05 6.45E-05 (9.60E+04 uCi/sec)

B. RADIOIODINES

1. IODINE-131 CURIES 0.00E+00 1.18E-07 25

2. AVERAGE RELEASE uCi/sec 0.00E+00 1.51E-08 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 0.00E+00 3.76E-05 (4.00E-02 uCi/sec)

C. PARTICULATES

1. PARTICULATES(HALF-CURIES 1.17E-05 3.36E-05 25 LIVES>8 DAYS)

2. AVERAGE RELEASE uCi/sec 1.49E-06 4.27E-06 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 4.96E-04 1.42E-03 (3.00E-01 uCi/sec)

4. GROSS ALPHA CURIES 0.00E+00 0.00E+00 RADIOACTIVITY D. TRITIUM

1. TOTAL RELEASE CURIES 4.71E+00 6.51E+00 50

2. AVERAGE RELEASE uCi/sec 5.99E-01 8.28E-01 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 3.33E-04 4.60E-04 (1.80E+05 uCi/sec)

E. CARBON-14

1. TOTAL RELEASE CURIES 1.81E+00 1.82E+00 None

2. AVERAGE RELEASE uCi/sec 2.30E-01 2.31E-01 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 2.95E-03 2.97E-03 (7.8E+03 uCi/sec) 4-6

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY Unit 2 REPORT CATEGORY: SEMIANNUAL AIRBORNE GROUND LEVEL CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: FISSION GASES, IODINES, AND PARTICULATES REPORTING PERIOD: QUARTER # 1 AND QUARTER # 2 YEAR 2012 CONTINUOUS MODE BATCH MODE NUCLIDES UNITS QUARTER 1 QUARTER 2 QUARTER 1 QUARTER 2 RELEASED FISSION GASES Argon-41 CURIES 0.00E+00 2.84E-01 0.00E+00 0.00E+00 Xenon-133 CURIES 3.12E-01 2.02E-01 1.30E-01 0.00E+00 Xenon-135 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 3.12E-01 4.87E-01 1.30E-01 0.00E+00 IODINES Iodine-131 CURIES 0.00E+00 1.18E-07 0.00E+00 0.00E+00 Iodine-133 CURIES 0.00E+00 7.20E-07 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 0.00E+00 8.39E-07 0.00E+00 0.00E+00 PARTICULATES Beryllium-7 CURIES 1.17E-05 3.36E-05 0.00E+00 0.00E+00 Cobalt-58 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cobalt-60 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Chromium-51 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Mercury-203 CURIES 0.00E+00 7.27E-10 0.00E+00 0.00E+00 Manganese-54 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Niobium-95 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Selenium-75 CURIES 0.00E+00 1.85E-09 0.00E+00 0.00E+00 Zirconium-95 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 1.17E-05 3.36E-05 0.00E+00 0.00E+00 OTHER Carbon-14 CURIES 1.80E+00 1.82E+00 1.05E-02 0.00E+00 Hydrogen-3 (Tritium) CURIES 4.69E+00 6.51E+00 2.48E-02 0.00E+00 TOTAL FOR PERIOD CURIES 6.49E+00 8.32E+00 3.53E-02 0.00E+00 4-7

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL AIRBORNE EFFLUENTS Unit: 2 Starting : 1-Jul-2012 Ending : 31-Dec-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 3 QUARTER 4 ERROR A. FISSION & ACTIVATION GASES

1. TOTAL RELEASE CURIES 5.71E-01 5.34E-01 100

2. AVERAGE RELEASE uCi/sec 7.19E-02 6.72E-02 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 7.49E-05 7.00E-05 (9.60E+04 uCi/sec)

B. RADIOIODINES

1. IODINE-131 CURIES 5.03E-07 2.81E-07 25

2. AVERAGE RELEASE uCi/sec 6.33E-08 3.53E-08 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 1.58E-04 8.82E-05 (4.00E-02 uCi/sec)

C. PARTICULATES

1. PARTICULATES(HALF-CURIES 1.78E-05 2.76E-05 25 LIVES>8 DAYS)

2. AVERAGE RELEASE uCi/sec 2.24E-06 3.47E-06 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 7.47E-04 1.16E-03 (3.00E-01 uCi/sec)

4. GROSS ALPHA CURIES 0.00E+00 0.00E+00 RADIOACTIVITY D. TRITIUM

1. TOTAL RELEASE CURIES 2.04E+01 2.05E+01 50

2. AVERAGE RELEASE uCi/sec 2.57E+00 2.57E+00 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 1.43E-03 1.43E-03 (1.80E+05 uCi/sec)

E. CARBON-14

1. TOTAL RELEASE CURIES 1.84E+00 1.83E+00 None

2. AVERAGE RELEASE uCi/sec 2.31E-01 2.30E-01 RATE FOR PERIOD

3. PERCENT OF LIMIT

% 2.97E-03 2.95E-03 (7.8E+03 uCi/sec) 4-8

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY Unit 2 REPORT CATEGORY: SEMIANNUAL AIRBORNE GROUND LEVEL CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: FISSION GASES, IODINES, AND PARTICULATES REPORTING PERIOD: QUARTER # 3 AND QUARTER # 4 YEAR 2012 CONTINUOUS MODE BATCH MODE NUCLIDES UNITS QUARTER 3 QUARTER 4 QUARTER 3 QUARTER 4 RELEASED FISSION GASES Argon-41 CURIES 3.74E-01 3.56E-01 0.00E+00 0.00E+00 Xenon-133 CURIES 1.97E-01 1.78E-01 0.00E+00 0.00E+00 Xenon-135 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 5.71E-01 5.34E-01 0.00E+00 0.00E+00 IODINES Iodine-131 CURIES 5.03E-07 2.80E-07 0.00E+00 0.00E+00 Iodine-133 CURIES 3.02E-06 1.20E-06 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 3.52E-06 1.48E-06 0.00E+00 0.00E+00 PARTICULATES Beryllium-7 CURIES 1.78E-05 2.75E-05 0.00E+00 0.00E+00 Cobalt-58 CURIES 2.77E-09 2.32E-08 0.00E+00 0.00E+00 Cobalt-60 CURIES 0.00E+00 7.74E-09 0.00E+00 0.00E+00 Chromium-51 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Mercury-203 CURIES 2.57E-09 9.54E-10 0.00E+00 0.00E+00 Manganese-54 CURIES 5.92E-09 1.80E-08 0.00E+00 0.00E+00 Niobium-95 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Selenium-75 CURIES 3.10E-09 1.15E-09 0.00E+00 0.00E+00 Zirconium-95 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 1.78E-05 2.76E-05 0.00E+00 0.00E+00 OTHER Carbon-14 CURIES 1.84E+00 1.83E+00 0.00E+00 0.00E+00 Hydrogen-3 (Tritium) CURIES 2.04E+01 2.05E+01 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 2.23E+01 2.23E+01 0.00E+00 0.00E+00 4-9

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Gaseous Effluents STP NUCLEAR OPERATING COMPANY Unit 1 plus 2 Total REPORT CATEGORY: ANNUAL AIRBORNE GROUND LEVEL RELEASES.

TOTALS FOR EACH NUCLIDE RELEASED. FOR ALL OF 2012 NUCLIDES UNIT 1 UNIT 2 TOTAL UNITS RELEASED 2012 2012 2012 FISSION GASES Argon-41 CURIES 1.57E+00 1.00E+00 2.58E+00 Xenon-133 CURIES 9.14E-01 1.02E+00 1.93E+00 Xenon-135 CURIES 2.31E-03 0.00E+00 2.31E-03 TOTAL FOR PERIOD CURIES 2.49E+00 2.02E+00 4.51E+00 IODINES Iodine-131 CURIES 1.03E-07 8.96E-07 9.99E-07 Iodine-133 CURIES 0.00E+00 4.93E-06 4.93E-06 TOTAL FOR PERIOD CURIES 1.03E-07 5.82E-06 5.93E-06 PARTICULATES Beryllium-7 CURIES 1.60E-04 9.06E-05 2.50E-04 Cobalt-58 CURIES 5.54E-06 2.49E-08 5.56E-06 Cobalt-60 CURIES 4.34E-06 6.45E-09 4.35E-06 Chromium-51 CURIES 1.07E-05 0.00E+00 1.07E-05 Mercury-203 CURIES 6.12E-08 4.25E-09 6.55E-08 Manganese-54 CURIES 3.61E-07 2.22E-08 3.83E-07 Niobium-95 CURIES 1.18E-06 0.00E+00 1.18E-06 Selenium-75 CURIES 1.65E-07 6.10E-09 1.71E-07 Zirconium-95 CURIES 1.25E-08 0.00E+00 1.25E-08 TOTAL FOR PERIOD CURIES 1.82E-04 9.07E-05 2.73E-04 OTHER Carbon-14 CURIES 7.28E+00 7.28E+00 1.46E+01 Hydrogen-3 (Tritium) CURIES 7.06E+01 5.19E+01 1.23E+02 TOTAL FOR PERIOD CURIES 7.78E+01 5.92E+01 1.37E+02 4-10

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents LIQUID EFFLUENTS 5-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL LIQUID EFFLUENTS Unit: 1 Starting : 1-Jan-2012 Ending : 30-Jun-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 1 QUARTER 2 ERROR A. FISSION & ACTIVATION PRODUCTS

1. TOTAL RELEASE (NOT INCLUDING TRITIUM, GASES, CURIES 3.803E-03 8.362E-04 10 ALPHA)

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 1.335E-09 5.495E-10 PERIOD

3. PERCENT OF EC* LIMIT (FRACTIONAL)

% 1.376E-03 4.779E-04 B. TRITIUM

1. TOTAL RELEASE CURIES 3.725E+02 2.284E+02 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 1.307E-04 1.501E-04 PERIOD

3. % OF LIMIT (1.00E-02 uCi/mL) % 1.307E+00 1.501E+00 C. DISSOLVED AND ENTRAINED GASES

1. TOTAL RELEASE CURIES 1.237E-04 1.174E-03 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 4.341E-11 7.715E-10 PERIOD

3. PERCENT OF LIMIT (2.00E-04 uCi/mL)

% 2.170E-05 3.858E-04 D. GROSS ALPHA RADIOACTIVITY

1. TOTAL RELEASE CURIES 0.000E+00 0.000E+00 10 E. WASTE VOL RELEASED

1. TOTAL PRE-DILUTION VOLUME LITERS 4.580E+06 3.788E+06 1

2. BATCH PRE-DILUTION VOLUME LITERS 1.737E+06 7.577E+05 1 F. VOLUME OF DILUTION WATER USED**

LITERS 2.845E+09 1.518E+09 10

EC= Effluent Concentration

- Volume of dilution water used means the volume of water circulated through the main condenser during the actual time of release. Liquid effluent releases ultimately dilute into the volume of the onsite main cooling reservoir and then into offsite water bodies as described in Section 2, subsection Radiological Impact on Man of this report.

5-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY Unit 1 REPORT CATEGORY: SEMIANNUAL LIQUID CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: ALL RADIONUCLIDES REPORTING PERIOD: QUARTER # 1 AND QUARTER # 2 YEAR 2012 CONTINUOUS RELEASES BATCH RELEASES NUCLIDES UNITS QUARTER 1 QUARTER 2 QUARTER 1 QUARTER 2 RELEASED ALL NUCLIDES Cerium-143 CURIES 0.00E+00 0.00E+00 1.10E-07 0.00E+00 Cobalt-58 CURIES 0.00E+00 0.00E+00 9.06E-06 2.24E-06 Cobalt-60 CURIES 0.00E+00 0.00E+00 1.03E-03 1.79E-04 Cesium-134 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cesium-137 CURIES 0.00E+00 0.00E+00 1.52E-05 1.46E-06 Iron-55 CURIES 0.00E+00 0.00E+00 7.64E-04 1.10E-04 Tritium CURIES 3.07E-02 1.88E-02 3.72E+02 2.28E+02 Krypton-85 CURIES 0.00E+00 0.00E+00 0.00E+00 3.76E-04 Manganese-54 CURIES 0.00E+00 0.00E+00 4.69E-05 0.00E+00 Nickel-63 CURIES 0.00E+00 0.00E+00 1.79E-03 3.28E-04 Antimony-124 CURIES 0.00E+00 0.00E+00 3.43E-06 0.00E+00 Antimony-125 CURIES 0.00E+00 0.00E+00 1.35E-04 2.16E-04 Tin-117M CURIES 0.00E+00 0.00E+00 4.84E-06 0.00E+00 Tellurium-125M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-133 CURIES 0.00E+00 0.00E+00 1.20E-04 7.66E-04 Xenon-133M CURIES 0.00E+00 0.00E+00 0.00E+00 1.34E-05 Xenon-135 CURIES 0.00E+00 0.00E+00 4.12E-06 1.87E-05 TOTAL FOR PERIOD CURIES 3.07E-02 1.88E-02 3.72E+02 2.28E+02 5-3

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL LIQUID EFFLUENTS Unit: 1 Starting : 1-Jul-2012 Ending : 31-Dec-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 3 QUARTER 4 ERROR A. FISSION & ACTIVATION PRODUCTS

1. TOTAL RELEASE (NOT INCLUDING TRITIUM, CURIES 2.327E-03 1.927E-03 10 GASES, ALPHA)

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 9.822E-10 6.665E-10 PERIOD

3. PERCENT OF EC* LIMIT (FRACTIONAL)

% 8.088E-04 5.173E-04 B. TRITIUM

1. TOTAL RELEASE CURIES 6.158E+02 3.914E+02 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 2.599E-04 1.354E-04 PERIOD

3. % OF LIMIT (1.00E-02 uCi/mL) % 2.600E+00 1.354E+00 C. DISSOLVED AND ENTRAINED GASES

1. TOTAL RELEASE CURIES 9.561E-04 3.580E-03 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 4.036E-10 1.238E-09 PERIOD

3. PERCENT OF LIMIT (2.00E-04 uCi/mL)

% 2.018E-04 6.190E-04 D. GROSS ALPHA RADIOACTIVITY

1. TOTAL RELEASE CURIES 0.000E+00 0.000E+00 10 E. WASTE VOL RELEASED

1. TOTAL PRE-DILUTION VOLUME LITERS 4.164E+06 6.279E+06 1

2. BATCH PRE-DILUTION VOLUME LITERS 1.232E+06 1.821E+06 1 F. VOLUME OF DILUTION WATER USED**

LITERS 2.365E+09 2.885E+09 10

EC= Effluent Concentration

- Volume of dilution water used means the volume of water circulated through the main condenser during the actual time of release. Liquid effluent releases ultimately dilute into the volume of the onsite main cooling reservoir and then into offsite water bodies as described in Section 2, subsection Radiological Impact on Man of this report.

5-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY Unit 1 REPORT CATEGORY: SEMIANNUAL LIQUID CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: ALL RADIONUCLIDES REPORTING PERIOD: QUARTER # 3 AND QUARTER # 4 YEAR 2012 CONTINUOUS RELEASES BATCH RELEASES NUCLIDES UNITS QUARTER 3 QUARTER 4 QUARTER 3 QUARTER 4 RELEASED ALL NUCLIDES Cerium-143 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cobalt-58 CURIES 0.00E+00 0.00E+00 1.22E-05 3.75E-04 Cobalt-60 CURIES 0.00E+00 0.00E+00 4.57E-04 3.12E-04 Cesium-134 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cesium-137 CURIES 0.00E+00 0.00E+00 1.15E-05 6.76E-06 Iron-55 CURIES 0.00E+00 0.00E+00 3.17E-04 5.20E-04 Tritium CURIES 1.34E-02 7.57E-03 6.16E+02 3.91E+02 Krypton-85 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Manganese-54 CURIES 0.00E+00 0.00E+00 3.62E-05 0.00E+00 Nickel-63 CURIES 0.00E+00 0.00E+00 1.22E-03 4.44E-04 Antimony-124 CURIES 0.00E+00 0.00E+00 0.00E+00 1.31E-05 Antimony-125 CURIES 0.00E+00 0.00E+00 1.79E-04 2.56E-04 Tin-117M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tellurium-125M CURIES 0.00E+00 0.00E+00 9.36E-05 0.00E+00 Xenon-133 CURIES 0.00E+00 0.00E+00 9.44E-04 2.93E-03 Xenon-133M CURIES 0.00E+00 0.00E+00 8.26E-06 1.01E-04 Xenon-135 CURIES 0.00E+00 0.00E+00 3.63E-06 5.45E-04 TOTAL FOR PERIOD CURIES 1.34E-02 7.57E-03 6.16E+02 3.91E+02 5-5

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL LIQUID EFFLUENTS Unit: 2 Starting : 1-Jan-2012 Ending : 30-Jun-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 1 QUARTER 2 ERROR A. FISSION & ACTIVATION PRODUCTS

1. TOTAL RELEASE (NOT INCLUDING TRITIUM, CURIES 3.099E-04 1.272E-03 10 GASES, ALPHA)

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 1.343E-09 7.641E-10 PERIOD

3. PERCENT OF EC* LIMIT (FRACTIONAL)

% 8.470E-04 1.015E-03 B. TRITIUM

1. TOTAL RELEASE CURIES 4.556E+00 2.904E+01 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 1.974E-05 1.745E-05 PERIOD

3. % OF LIMIT (1.00E-02 uCi/mL) % 1.974E-01 1.744E-01 C. DISSOLVED AND ENTRAINED GASES

1. TOTAL RELEASE CURIES 0.000E+00 5.206E-06 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 0.000E+00 3.127E-12 PERIOD

3. PERCENT OF LIMIT (2.00E-04 uCi/mL)

% 0.000E+00 1.563E-06 D. GROSS ALPHA RADIOACTIVITY

1. TOTAL RELEASE CURIES 0.000E+00 0.000E+00 10 E. WASTE VOL RELEASED

1. TOTAL PRE-DILUTION VOLUME LITERS 2.391E+06 3.631E+06 1

2. BATCH PRE-DILUTION VOLUME LITERS 1.709E+05 8.784E+05 1 F. VOLUME OF DILUTION WATER USED**

LITERS 2.284E+08 1.661E+09 10

EC= Effluent Concentration

- Volume of dilution water used means the volume of water circulated through the main condenser during the actual time of release. Liquid effluent releases ultimately dilute into the volume of the onsite main cooling reservoir and then into offsite water bodies as described in Section 2, subsection Radiological Impact on Man of this report.

5-6

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY Unit 2 REPORT CATEGORY: SEMIANNUAL LIQUID CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: ALL RADIONUCLIDES REPORTING PERIOD: QUARTER # 1 AND QUARTER # 2 YEAR 2012 CONTINUOUS RELEASES BATCH RELEASES NUCLIDES UNITS QUARTER 1 QUARTER 2 QUARTER 1 QUARTER 2 RELEASED ALL NUCLIDES Cerium-143 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cobalt-58 CURIES 0.00E+00 0.00E+00 4.25E-05 9.36E-05 Cobalt-60 CURIES 0.00E+00 0.00E+00 2.41E-05 2.76E-04 Cesium-134 CURIES 0.00E+00 0.00E+00 0.00E+00 8.58E-06 Cesium-137 CURIES 0.00E+00 0.00E+00 0.00E+00 3.54E-05 Iron-55 CURIES 0.00E+00 0.00E+00 3.29E-05 8.75E-05 Tritium CURIES 1.32E-03 6.00E-03 4.55E+00 2.90E+01 Krypton-85 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Manganese-54 CURIES 0.00E+00 0.00E+00 3.02E-06 1.16E-05 Nickel-63 CURIES 0.00E+00 0.00E+00 6.56E-05 2.25E-04 Antimony-124 CURIES 0.00E+00 0.00E+00 3.28E-05 5.56E-05 Antimony-125 CURIES 0.00E+00 0.00E+00 1.09E-04 4.79E-04 Tin-117M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tellurium-125M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-133 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-133M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-135 CURIES 0.00E+00 0.00E+00 0.00E+00 5.21E-06 TOTAL FOR PERIOD CURIES 1.32E-03 6.00E-03 4.55E+00 2.90E+01 5-7

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY SEMIANNUAL SUMMATION OF ALL RELEASES BY QUARTER ALL LIQUID EFFLUENTS Unit: 2 Starting : 1-Jul-2012 Ending : 31-Dec-2012 EST. TOT TYPE OF EFFLUENT UNITS QUARTER 3 QUARTER 4 ERROR A. FISSION & ACTIVATION PRODUCTS

1. TOTAL RELEASE (NOT INCLUDING TRITIUM, CURIES 7.613E-04 4.622E-04 10 GASES, ALPHA)

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 1.417E-09 9.107E-10 PERIOD

3. PERCENT OF EC* LIMIT (FRACTIONAL)

% 2.370E-03 1.831E-03 B. TRITIUM

1. TOTAL RELEASE CURIES 8.600E+00 3.483E+01 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 1.601E-05 6.863E-05 PERIOD

3. % OF LIMIT (1.00E-02 uCi/mL) % 1.600E-01 6.862E-01 C. DISSOLVED AND ENTRAINED GASES

1. TOTAL RELEASE CURIES 0.000E+00 0.000E+00 10

2. AVERAGE DILUTED CONCENTRATION DURING uCi/mL 0.000E+00 0.000E+00 PERIOD

3. PERCENT OF LIMIT (2.00E-04 uCi/mL)

% 0.000E+00 0.000E+00 D. GROSS ALPHA RADIOACTIVITY

1. TOTAL RELEASE CURIES 0.000E+00 0.000E+00 10 E. WASTE VOL RELEASED

1. TOTAL PRE-DILUTION VOLUME LITERS 3.508E+06 3.637E+06 1

2. BATCH PRE-DILUTION VOLUME LITERS 2.875E+05 2.872E+05 1 F. VOLUME OF DILUTION WATER USED**

LITERS 5.338E+08 5.039E+08 10

EC= Effluent Concentration

- Volume of dilution water used means the volume of water circulated through the main condenser during the actual time of release. Liquid effluent releases ultimately dilute into the volume of the onsite main cooling reservoir and then into offsite water bodies as described in Section 2, subsection Radiological Impact on Man of this report.

5-8

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY Unit 2 REPORT CATEGORY: SEMIANNUAL LIQUID CONTINUOUS AND BATCH RELEASES. TOTALS FOR EACH NUCLIDE RELEASED.

TYPE OF ACTIVITY: ALL RADIONUCLIDES REPORTING PERIOD: QUARTER # 3 AND QUARTER # 4 YEAR 2012 CONTINUOUS RELEASES BATCH RELEASES NUCLIDES UNITS QUARTER 3 QUARTER 4 QUARTER 3 QUARTER 4 RELEASED ALL NUCLIDES Cerium-143 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cobalt-58 CURIES 0.00E+00 0.00E+00 1.95E-05 1.81E-06 Cobalt-60 CURIES 0.00E+00 0.00E+00 1.59E-04 7.39E-05 Cesium-134 CURIES 0.00E+00 0.00E+00 1.71E-05 1.13E-05 Cesium-137 CURIES 0.00E+00 0.00E+00 4.32E-05 4.87E-05 Iron-55 CURIES 0.00E+00 0.00E+00 7.44E-05 5.56E-05 Tritium CURIES 1.67E-02 1.83E-02 8.58E+00 3.48E+01 Krypton-85 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Manganese-54 CURIES 0.00E+00 0.00E+00 7.06E-06 0.00E+00 Nickel-63 CURIES 0.00E+00 0.00E+00 2.04E-04 1.12E-04 Antimony-124 CURIES 0.00E+00 0.00E+00 2.58E-06 0.00E+00 Antimony-125 CURIES 0.00E+00 0.00E+00 2.35E-04 1.59E-04 Tin-117M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tellurium-125M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-133 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-133M CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xenon-135 CURIES 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL FOR PERIOD CURIES 1.67E-02 1.83E-02 8.58E+00 3.48E+01 5-9

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Liquid Effluents STP NUCLEAR OPERATING COMPANY Unit 1 plus 2 Total REPORT CATEGORY: ANNUAL LIQUID RELEASES. TOTALS FOR EACH NUCLIDE RELEASED. FOR ALL OF 2012 NUCLIDES UNIT 1 UNIT 2 TOTAL UNITS RELEASED 2012 2012 2012 ALL NUCLIDES Cerium-143 CURIES 1.10E-07 0.00E+00 1.10E-07 Cobalt-58 CURIES 3.99E-04 1.57E-04 5.56E-04 Cobalt-60 CURIES 1.98E-03 5.33E-04 2.51E-03 Cesium-134 CURIES 0.00E+00 3.70E-05 3.70E-05 Cesium-137 CURIES 3.49E-05 1.27E-04 1.62E-04 Iron-55 CURIES 1.71E-03 2.50E-04 1.96E-03 Tritium CURIES 1.61E+03 7.70E+01 1.69E+03 Krypton-85 CURIES 3.76E-04 0.00E+00 3.76E-04 Manganese-54 CURIES 8.31E-05 2.16E-05 1.05E-04 Nickel-63 CURIES 3.79E-03 6.06E-04 4.39E-03 Antimony-124 CURIES 1.65E-05 9.10E-05 1.07E-04 Antimony-125 CURIES 7.86E-04 9.82E-04 1.77E-03 Tin-117M CURIES 4.84E-06 0.00E+00 4.84E-06 Tellurium-125M CURIES 9.36E-05 0.00E+00 9.36E-05 Xenon-133 CURIES 4.76E-03 0.00E+00 4.76E-03 Xenon-133M CURIES 1.23E-04 0.00E+00 1.23E-04 Xenon-135 CURIES 5.72E-04 5.21E-06 5.77E-04 TOTAL FOR PERIOD CURIES 1.61E+03 7.70E+01 1.69E+03 TOTAL Noble Gases CURIES 5.83E-03 5.21E-06 5.84E-03 TOTAL Excluding CURIES 8.90E-03 2.80E-03 1.17E-02 Tritium & Noble Gases 5-10

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Solid Waste and Irradiated Fuel Shipments Solid Waste and Irradiated Fuel Shipments 6-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Solid Waste and Irradiated Fuel Shipments A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not Irradiated Fuel)

1. Type of Waste Units 12-Month 12-Month Est. Total Error, %

Period Shipped Period Buried

a. Spent resins, filter sludges, m3 1.85E+01 1.85E+01 -1.00E+00 1.00E+00 evaporator bottoms, etc.

Ci 9.05E+00 9.05E+00 -5.00E+01 1.50E+02

b. Dry compressible waste, m3 2.43E+02 4.85E+01 -1.00E+00 1.00E+00 contaminated equip., etc.

Ci 1.40E+00 1.55E+00 -6.60E+01 2.00E+02

c. Irradiated components, control m3 None None N/A N/A rods, etc.

Ci None None N/A N/A

d. Other (Large Reactor Components m3 None None N/A N/A and Associated Commodities)

Ci None None N/A N/A

e. Low Level Exempt Quantities of m3 3.13E+01 3.13E+01 -1.00E+00 1.00E+00 secondary resin, sludge, and oily sludge. Ci 1.16E-06 1.16E-06 -2.00E+01 2.00E+01

2. Estimate of major nuclide composition (by type of waste)

a. Spent resins, filter Shipped sludges, evaporator bottoms, etc. %

Curie (Ci)

Nickel-63 5.263 58.1%

Iron-55 1.587 17.5%

Cobalt-60 1.347 14.9%

Cobalt-58 0.279 3.1%

Cesium-137 0.177 2.0%

Manganese-54 0.099 1.1%

Hydrogen-3 0.076 0.8%

Antimony-125 0.065 0.7%

Cesium-134 0.049 0.5%

b. Dry compressible Shipped waste, contaminated equip., etc. %

Curie (Ci)

Iron-55 0.802 57.3%

Cobalt-60 0.191 13.7%

Nickel-63 0.129 9.2%

Antimony-125 0.113 8.1%

Cobalt-58 0.069 5.0%

Chromium-51 0.036 2.5%

Manganese-54 0.020 1.4%

Zirconium-95 0.014 1.0%

6-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Solid Waste and Irradiated Fuel Shipments

b. Dry compressible Shipped waste, contaminated equip., etc. Curie (Ci) continued Niobium-95 0.007 0.5%

Cesium-137 0.004 0.3%

Iron-59 0.001 0.1%

Cobalt-57 0.001 0.0%

c. Irradiated None N/A components, control rods, etc.

d. Other (Large Reactor Components None N/A and Associated Commodities)

Shipped

e. Low Level Exempt Quantities of %

Curie (Ci) sewage sludge, resin and oily sludge Cobalt-60 6.85E-07 59.2%

Be-7 4.72E-07 40.8%

3. Solid Waste Disposition Number of Mode of Type of Waste Destination Shipments Transportation

a. Spent resins, filter sludges, Energy Solutions - Duratek Services evaporator bottoms, etc. 1560 Bear Creek Road 6 Truck

b. Dry compressible waste, Oak Ridge, TN 37830 contaminated equip., etc.

Energy Solutions - Clive Disposal Facility

a. Spent resins, filter sludges, Interstate 80, Exit 49 3 Truck evaporator bottoms, etc.

Clive, UT 84029 Republic Services *

e. Low Level Exempt Blueridge Landfill 2 Truck Quantities 2200 FM 521 Fresno, Texas 77545 Note: *Shipped per Texas Commission on Environmental Quality exemption to industrial landfill.

6-3

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Solid Waste and Irradiated Fuel Shipments

4. Class of Solid Waste:

A

5. Type of Containers Used for Shipment:

General Design, Type A Containers

6. Solidifying Agent:

N/A B. IRRADIATED FUEL SHIPMENTS (Disposal)

No shipments made during this period.

6-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Dose Data Tab Dose Data Tab

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Dose Data Tab INTENTIONALLY LEFT BLANK

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Dose Accumulations DOSE ACCUMULATIONS 7-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Dose Accumulations STP NUCLEAR OPERATING COMPANY

SUMMARY

OF MAXIMUM INDIVIDUAL DOSES Unit: 1 TOTAL ACCUMULATION FOR PERIODS:

for LIQUID, GASEOUS AND AIR Starting: 1-Jan-2012 Ending: 31-Dec-2012 LIMIT ESTIMATED LOCATION % OF APPLICABLE AGE (mrad EFFLUENT DOSE DIST DIR APPLICABLE ORGAN GROUP or (mrem) (m) (TOWARD) LIMIT mrem)

LITTLE TOTAL LIQUID 9.25E-03 ADULT ROBBINS 3.08E-01 3 BODY SLOUGH(5)

LITTLE LIQUID LIVER 9.28E-03 ADULT ROBBINS 9.28E-02 10 SLOUGH(5)

AIR DOSE NOBLE GAS 1.89E-03 2160m W 1.89E-02 10 (gamma-mrad)

AIR DOSE NOBLE GAS 6.99E-04 2160m W 3.49E-03 20 (beta-mrad)

TOTAL NOBLE GAS 1.26E-03 ALL(1) 2160m W 2.52E-02 5 BODY TOTAL NOBLE GAS 3.70E-04 ALL(2) 4000m WSW 7.40E-03 5 BODY NOBLE GAS SKIN 2.03E-03 ALL(1) 2160m W 1.35E-02 15 NOBLE GAS SKIN 5.96E-04 ALL(2) 4000m WSW 3.98E-03 15 IODINE, PARTICULATES, BONE 3.29E-01 CHILD(1) 1720m NW 2.20E+00 15 TRITIUM & C-14 IODINE, PARTICULATES, BONE 6.73E-02 CHILD(2) 4000m WSW 4.48E-01 15 TRITIUM & C-14

SUMMARY

OF POPULATION DOSES FOR 2012 ESTIMATED AVERAGE DOSE TO EFFLUENT APPLICABLE ORGAN POPULATION DOSE POPULATION (rem per person)

(person-rem)

LIQUID TOTAL BODY 6.23E-04 1.39E-07(3)

GASEOUS TOTAL BODY 5.60E-02 4.45E-09(4)

NOTES:

(1)

Doses were calculated for HYPOTHETICAL receptors at the site boundary.

(2)

Highest dose for nearest individual or receptor. This individual is assumed to reside at this location.

(3)

Calculation based on a population of 303,500 for shore line exposure and for salt water invertebrate ingestion and 3,800 for salt water sport fish ingestion.

(4)

Calculation based on a population of 299,000 within fifty (50) miles of South Texas Project Electric Generating Station.

(5)

Receptor at this location is an adult ingesting fresh water sport fish and receiving shoreline exposure from the Little Robbins Slough Area.

7-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Dose Accumulations STP NUCLEAR OPERATING COMPANY

SUMMARY

OF MAXIMUM INDIVIDUAL DOSES Unit: 2 TOTAL ACCUMULATION FOR PERIODS:

for LIQUID, GASEOUS, AND AIR Starting: 1-Jan-2012 Ending: 31-Dec-2012 LOCATION LIMIT ESTIMATED % OF APPLICABLE DIST DIR (mrad EFFLUENT DOSE AGE GROUP APPLICABL ORGAN (m) or (mrem) E LIMIT (TOWARD) mrem)

LITTLE TOTAL LIQUID 4.48E-04 ADULT ROBBINS 1.49E-02 3 BODY SLOUGH(5)

LITTLE LIQUID LIVER 4.52E-04 ADULT ROBBINS 4.52E-03 10 SLOUGH(5)

AIR DOSE NOBLE GAS 4.93E-04 1540m NNW 4.93E-03 10 (gamma-mrad)

AIR DOSE NOBLE GAS 2.28E-04 1540m NNW 1.14E-03 20 (beta-mrad)

TOTAL NOBLE GAS 3.26E-04 ALL(1) 1540m NNW 6.53E-03 5 BODY TOTAL NOBLE GAS 1.15E-04 ALL(2) 7200m SW 2.30E-03 5 BODY NOBLE GAS SKIN 5.38E-04 ALL(1) 1540m NNW 3.59E-03 15 NOBLE GAS SKIN 1.86E-04 ALL(2) 7200m SW 1.24E-03 15 IODINE, PARTICULATES, BONE 3.28E-01 CHILD(1) 1720m NW 2.18E+00 15 TRITIUM & C-14 IODINE, PARTICULATES, BONE 6.68E-02 CHILD(2) 4000m WSW 4.45E-01 15 TRITIUM & C-14

SUMMARY

OF POPULATION DOSES FOR 2012 ESTIMATED AVERAGE DOSE TO EFFLUENT APPLICABLE ORGAN POPULATION DOSE POPULATION (rem per person)

(person-rem)

LIQUID TOTAL BODY 3.98E-05 6.89E-09(3)

GASEOUS TOTAL BODY 5.16E-02 4.11E-09(4)

NOTES:

(1)

Doses were calculated for HYPOTHETICAL receptors at the site boundary.

(2)

Highest dose for nearest individual or receptor. This individual is assumed to reside at this location.

(3)

Calculation based on a population of 303,500 for shore line exposure and for salt water invertebrate ingestion and 3,800 for salt water sport fish ingestion.

(4)

Calculation based on a population of 299,000 within fifty (50) miles of South Texas Project Electric Generating Station.

(5)

Receptor at this location is an adult ingesting fresh water sport fish and receiving shoreline exposure from the Little Robbins Slough Area.

7-3

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Dose Accumulations STP NUCLEAR OPERATING COMPANY

SUMMARY

OF MAXIMUM INDIVIDUAL DOSES Unit: 1 plus 2 TOTAL ACCUMULATION FOR PERIODS:

for LIQUID, GASEOUS, AND AIR Starting: 1-Jan-2012 Ending: 31-Dec-2012 UNIT 1 UNIT 2 TOTAL 1+2 LOCATION APPLICABLE ESTIMATED ESTIMATED AGE EFFLUENT ESTIMATED DIST DIR ORGAN DOSE DOSE GROUP DOSE (mrem) (m) (TOWARD)

(mrem) (mrem)

LITTLE TOTAL LIQUID 9.25E-03 4.48E-04 9.70E-03 ADULT ROBBINS BODY SLOUGH(5)

LITTLE LIQUID LIVER 9.28E-03 4.52E-04 9.73E-03 ADULT ROBBINS SLOUGH(5)

AIR DOSE NOBLE GAS 1.89E-03 2.51E-04 2.15E-03 2160m W (gamma-mrad)

AIR DOSE NOBLE GAS 6.99E-04 1.10E-04 8.09E-04 2160m W (beta-mrad)

TOTAL NOBLE GAS 1.26E-03 1.66E-04 1.43E-03 ALL(1) 2160m W BODY TOTAL NOBLE GAS 3.70E-04 7.86E-05 4.49E-04 ALL(2) 4000m WSW BODY NOBLE GAS SKIN 2.03E-03 2.72E-04 2.30E-03 ALL(1) 2160m W NOBLE GAS SKIN 5.96E-04 1.29E-04 7.26E-04 ALL(2) 4000m WSW IODINE, PARTICULATES, BONE 3.29E-01 3.28E-01 6.57E-01 CHILD(1) 1540m NNW TRITIUM & C-14 IODINE, PARTICULATES, BONE 6.73E-02 6.68E-02 1.34E-01 CHILD(2) 4000m WSW TRITIUM & C-14 IODINE, TOTAL PARTICULATES, 6.56E-03 6.22E-03 1.28E-02 ADULT(2) 4000m WSW BODY TRITIUM & C-14

SUMMARY

OF POPULATION DOSES FOR 2012 ESTIMATED AVERAGE DOSE TO EFFLUENT APPLICABLE ORGAN POPULATION DOSE POPULATION (rem per person)

(person-rem)

LIQUID TOTAL BODY 6.63E-04 1.46E-07(3)

GASEOUS TOTAL BODY 1.08-01 6.80E-09(4)

NOTES:

(1)

Doses were calculated for HYPOTHETICAL receptors at the site boundary.

(2)

Highest dose for nearest individual or receptor. This individual is assumed to reside at this location.

(3)

Calculation based on a population of 303,500 for shore line exposure and for salt water invertebrate ingestion and 3,800 for salt water sport fish ingestion.

(4)

Calculation based on a population of 299,000 within fifty (50) miles of South Texas Project Electric Generating Station.

(5)

Receptor at this location is an adult ingesting fresh water sport fish and receiving shoreline exposure from the Little Robbins Slough Area.

7-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Results of Direct Radiation Measurements RESULTS OF DIRECT RADIATION MEASUREMENTS PROGRAM 8-1

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Results of Direct Radiation Measurements STP NUCLEAR OPERATING COMPANY Onsite Direct Radiation Measurements REPORT CATEGORY: THERMOLUMINESCENT DOSIMETER MONITORING STATIONS QUARTERLY RESULTS FOR 2010 TABLE 8-1 MONITORING STATION QUARTER QUARTER QUARTER QUARTER AVERAGE AVERAGE NUMBER (Noted 1 2 3 4 RATE NET RATE on Figure 8-1) milliroentgen milliroentgen milliroentgen milliroentgen milliroentgen milliroentgen UNITS per quarter per hour PROTECTED AREA 1 12.3 13.4 12.4 12.9 12.8 0.0058 2 11.9 13.7 12.0 12.8 12.6 0.0058 3 11.9 12.9 12.1 12.4 12.3 0.0056 4 12.3 12.8 12.9 13.0 12.8 0.0058 5 13.0 14.2 12.7 12.8 13.2 0.0060 6 15.2 16.3 16.6 16.4 16.1 0.0074 7 15.3 17.1 18.1 16.1 16.7 0.0076 8 14.4 16.0 14.5 14.1 14.8 0.0068 9 13.1 13.7 12.7 13.5 13.3 0.0061 10 12.0 12.5 11.8 12.8 12.3 0.0056 11 11.3 10.5 09.8 09.8 10.4 0.0047 12 11.7 11.9 10.2 10.8 11.2 0.0051 13 10.9 11.1 10.9 10.5 10.9 0.0050 14 11.4 12.5 11.6 12.0 11.9 0.0054 15 12.7 13.5 14.1 14.5 13.7 0.0063 16 12.3 12.7 13.9 14.6 13.4 0.0061 ONSITE STAGING FACILITY (OUTSIDE STORAGE) 17 12.0 12.0 11.1 11.5 11.7 0.0053 18 11.4 11.9 11.2 11.8 11.6 0.0053 19 11.3 11.9 10.9 11.8 11.5 0.0053 20 13.5 14.6 14.2 14.4 14.2 0.0065 ONSITE STAGING FACILITY (WAREHOUSE D) 21 16.1 15.0 12.9 15.4 14.9 0.0068 22 26.5 15.0 13.2 18.2 18.2 0.0083 23 13.7 11.9 11.1 12.0 12.2 0.0056 24 28.2 12.7 12.1 13.7 16.7 0.0076 OLD STEAM GENERATOR STORAGE FACILITY 25 12.2 12.6 13.2 12.6 12.7 0.0058 26 15.2 15.3 16.6 16.1 15.8 0.0072 27 13.6 13.7 14.9 14.9 14.3 0.0065 28 14.3 15.7 14.7 14.3 14.8 0.0068 8-2

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Results of Direct Radiation Measurements Notes for Onsite Direct Radiation Measurements Measurement Results Individual values normalized to a 91 day quarter.

Only the calcium sulfate elements were used in these averages.

Average Net Rate:

Difference between the 2012 exposure rate and the 1986 measured rate due to natural background (average rate - 15.4 mR background) / 91 days / 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months per day The pre-operational background rate of 15.4 mR at the site boundary in 1986 has been used to reflect the background baseline exposure rate for STP. Historically the exposure rates measured near the protected area fence have been lower than the historical background at the site boundary. However, dosimeter stations 6 and 7 have at times exceeded this background rate due to radioactive waste processing activities on the south side of Units 1 and 2.

Zero:

Zero (0 or 0.00) indicate background levels Milliroentgen:

Miliroentgen or mR is a unit of exposure for X-rays and gamma rays.

8-3

RADIOACTIVE EFFLEUNT RELEASE REPORT 2012 SOUTH TEXAS PROJECT x

13.8KV EMERGENCY TRANSFORMER FIGURE 8-1 36 35 16 x

x OLD STEAM GENERATOR STORAGE 10 1'

FACILITY 27 WAREHOUSE D x x x x x x x 1480' x x x x x x x x x 461 SGS OSF ENTER x

5 30' BARRIERS 28 x

CONTRACTOR CONTRACTOR 26 PARKING PARKING LOT 10 PARKING x

x x

EXIT 18 x x x 7 30' BARRIERS 25 x x SUB 6 22 x x x x 15 285 PARKING LOT 7 57 463 3 14 317 318 AVENUE E EMPTY x x x x x x x x WAREHOUSE E 56 L.L. 55 54 53 52 52A SURPLUS AREA 21 STORAGE 10 9 30' BARRIERS COMMUNICATIONS CONTRACTOR SEC. SHELT. # 1 METLAB x

FACILITY WAREHOUSE C WAREHOUSE B ASSEMBLY 23 x

E. C. W.

AREA INTAKE STRUCTURE 24 x

x x x x x x x x x SUB 5 x

x x S&C SWITCH PARKING LOT 8 340 x

N SKID x 5TH STREET 95 x

13 x

H SKID 12 LOAD x x x x x NORTH GATE CENTER 50 x x x 5

x x x x BLDG 26 SEC. SHELT. # 6 x x x 11 ECW x AVENUE D AVENUE B HYDRO EMPTY 17 TANK NDE LAB EMPTY 20 RECORDS 21 x

PARKING LOT 6 VAULT R5' T-TRAL45 1

x SUB 2 SEC.

R5' PARKING LOT 3 STNDBY SEC. 301 MAKEUP MAKEUP XFMR 71 PARKING LOT 2 TANK TANK SEC. SHELT. # 2 HAZ-MAT STNDBY FAB GUARD XFMR L.L.

x EMPTY REFERENCE DRAWINGS C SITE DRAINAGE PLAN C CONCRETE PAVING & SECTIONS S FOUNDATION PLAN 18 S FOUNDATION SECTIONS S FOUNDATION SECTIONS S FOUNDATION SECTIONS & DETAILS (MISC. BERM)

S FOUNDATION DETAILS S FOUNDATION SECTIONS & DETAILS (MISC. BERM) x FACILITY MAIN MAIN SUB 7 49 XFMR XFMR STORAGE ACID/ ACID/

SHOP x

OPEN OPEN 654 BSU YWR 725 OPEN OPEN OPEN BALCOM BOHNER GEIGER AUX AUX x x CAUSTIC CAUSTIC x

XFMR TANKS XFMR TANKS M.O.S.T.

20 x x MAIN MAIN 4TH STREET XFMR XFMR x x x

x x TGB-2 TDS TSS DGB TGB-1 TDS TSS DGB x

x 33 TANKS TANKS AVENUE C EMPTY x x PEDESTRIAN PEDESTRIAN WALKWAY WALKWAY EAST OSF 19 WEST GATE PEDE PEDESTRIAN WALKWAY WALKWAY 41 STRI PARKING LOT 1 x x PEDESTRIAN AN SUB 13-A WALK 48 WAY 11 59'-5" AOV/MOV GATE 21'-9" 13.8-4.16 13.8-4.16 45 AY 31 KV KV WALKW PEDESTRIAN PEDESTRIAN WALKWAY WALKWAY 49'-6" 9'-11" TRIAN MOF PEDES SHOP 4 XMFRS XMFRS OUTSIDE x x x 49'-6" ACCESS 45' PORTAL 94 29'-8" 44'-7" EMPTY X 8' 9'-11" 129'-9" X 8' 1 HOUR x

x x 19'-10" 8'-8" MAINTENANCE CCL CCL STORAGE 3RD STREET SEC. SHELT. # 5 23 22 DELUGE VALVE HOUSES 21 AUX. E.S.F.

XMFRS 13 12 DELUGE VALVE HOUSES 11 AUX. E.S.F.

XMFRS OPERATIONS x

x 2967 squa re FACILITY ft x x x SUB 13 x x x

DGB AUX.

DGB x x

270'-9" (TYP. 10 SPACES)

AUX. FEED IVC IVC 10 (TYP. 4 SPACES)

FEED WATER SUB 9 OSS OSS WATER TANK TANK x

2 1 ICES SERV DOC. MT&E OPS x

x PARKING LOT 5 x DRAIN SAFETY FAC FAC E/M I/C M/M MOST IMT OPS SEC x SLOGAN ASPHALT WALKWAY x SEC x

MENT DOCU ROL UNIT 2 FLAMABLE LUBE OIL CONT UNIT 1 BLDG.

x STORAGE x SLAB SLAB ASSIGNED PARKING SUB 8 1 2 3 4 5 6 7 8 9 10 11 12 RCB 9'-11" x

RCB x

2 4'-11" x x 13 14 15 16 17 18 19 20 21 22 23 24 25 x

x ASSIGNED PARKING E44760' N61565' x MEAB E45360' N61565' MEAB NRC NRC NRC CAR POOL OPEN MOTORCYCLE 93 27 29 TIE INTO EXISTING 2ND STREET SIDEWALK/CROSSWALK N 61448 x

DEMIN.

E N 46100 61448 F/W STOR.

225'-5" E 46100 BLDG TANK x

SUB 4 x WAREHOUSE 32 x

WAREHOUSE FHB FHB #1 PROVER FIRE ANNEX 1 EQUAL.

x x

TANK BASIN PUMP x x x HOUSE x

RADIOLOGICAL RADIOLOGICAL #2 POT WATER x

x AREA AREA x N-61,244' x

2 E-42,529' x

x LOAD PROVER x

NPOD-41 SEC. SHELT. # 3 x

TANK PLANT CENTER E44267' N61235' CONCRETE WASTE x x

9 MONITORING TANKS x x x WASHOUT x x

x x x x x x x POND GAS STG. RACKS 1 LOAD CEMENT W/WATER LOAD NO PARKING RAMP LTG UNLOAD CENTER CAR LOAD CENTER P/W A

NEW BLDG.

SETTLING RIVER PLANT OLD VEH MGR DGB AMMONIUM CENTER TANKS 8845 DEPT BASIN HYDROXIDE PLANT WASH VEH 8853 ICAP HAND FLAMMABLE VEH OIL 6553 OR STORAGE LOADING GAS PUMP TANKS VISIT DOCK AREA VEH ORGANIC AIR NSC WEST 6037 OR ISLAND VISIT STORAGE 19 STOR BLOWER OPEN PARKING GAS STATION OPEN OIL DEMIN OR GREEN PARKING VISIT 133 OPEN SALT SEP. SER SUMP 2x6x6 OR AUX.

BALL VALVES VISIT WASTE WATER 6" SPEED BUMP ALL AROUND OPEN WTR 2'

1' OR VISIT OIL WASH PAD CYCLE TANKS BOILER 24' S

ORGANICS TREAT STOR FOAM LRS 601 S SLOPE FIRE PROTECTION TK INSULATOR'S 16' BASIN TO DITCH HOUSE CAR WASH 1/4"=1' INORGANIC EXIT ENTER ONLY ONLY SHOP BASIN NEUTRALIZATION FUEL OIL SEC. SHELT. # 4 BASIN STOR.

8 3 MCWW SUBSYSTEM 7

x ACID & CAUSTIC 6

TANKS x

5 HEAVY HAUL ROAD 4 E46100' N60880' VACUUM PRIMING SLAB R

2-H R

2-H 2-H R

R 2-H R

2-H R

2-H R 2-H R 2-H R

2-H 2-H R 2-H R 2-H 2-H R

R 2-H R R

2-H R 2-H NSC 2-H

-PO R OL

-PO OL NSC

-- DIRECT RADIATION MONITORING STATONS SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION BAY CITY, TEXAS A.R.E. - SITE MAP SCALE: FACILITY LAYOUT NUMBER FIG. NO. PLOT DATE: 04-28-2013 N.T.S. NSCGRA\EROMAPS\A.R.E.-KIM CADD FILE#: ARESITEMAP.DWG 8-4

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Meteorological Data Tab Meteorological Data Tab

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Meteorological Data Tab INTENTIONALLY LEFT BLANK

RADIOACTIVE EFFLUENT RELEASE REPORT 2012 SOUTH TEXAS PROJECT Joint Frequency Tables JOINT FREQUENCY TABLES 9-1

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER 9-2

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS A Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNE 0 0 0 1 1 0 0 0 2 2.0% 10.5 NE 0 0 0 0 0 0 0 0 0 0.0% 0.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SE 0 0 1 1 2 0 0 0 4 3.9% 11.1 SSE 0 0 1 5 3 1 0 0 10 9.8% 12.2 S 0 1 0 18 7 0 0 0 26 25.5% 11.2 SSW 0 0 4 14 0 0 0 0 18 17.6% 8.2 SW 0 0 1 12 3 0 0 0 16 15.7% 10.1 WSW 0 0 2 1 0 0 0 0 3 2.9% 6.7 W 0 0 0 2 0 0 0 0 2 2.0% 8.1 WNW 0 0 1 2 0 0 0 0 3 2.9% 7.7 NW 0 0 4 3 8 0 0 0 15 14.7% 11.2 NNW 0 0 2 1 0 0 0 0 3 2.9% 6.0 Total 0 1 16 60 24 1 0 0 102

% Of Total 0.0% 1.0% 15.7% 58.8% 23.5% 1.0% 0.0% 0.0%

Average speed for this table (MPH): 10.1 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-3

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS B Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 1 1 5 1 0 0 8 8.6% 14.8 NNE 0 0 0 6 3 0 0 0 9 9.7% 12.0 NE 0 0 1 1 0 0 0 0 2 2.2% 6.2 ENE 0 0 0 1 0 0 0 0 1 1.1% 12.1 E 0 0 0 2 0 0 0 0 2 2.2% 10.5 ESE 0 0 0 1 0 0 0 0 1 1.1% 10.4 SE 0 1 0 3 2 1 0 0 7 7.5% 12.4 SSE 0 0 1 6 9 3 0 0 19 20.4% 13.8 S 0 0 5 9 2 0 0 0 16 17.2% 9.3 SSW 0 0 6 1 0 0 0 0 7 7.5% 5.9 SW 0 0 2 0 0 0 0 0 2 2.2% 5.5 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 2 1 0 0 0 0 3 3.2% 6.9 WNW 0 0 1 2 1 0 0 0 4 4.3% 9.9 NW 0 0 1 2 3 0 0 0 6 6.5% 10.8 NNW 0 0 1 1 2 2 0 0 6 6.5% 14.6 Total 0 1 21 37 27 7 0 0 93

% Of Total 0.0% 1.1% 22.6% 39.8% 29.0% 7.5% 0.0% 0.0%

Average speed for this table (MPH): 11.2 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-4

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS C Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 4 4 2 1 0 0 11 9.8% 10.2 NNE 0 1 1 7 5 0 0 0 14 12.5% 10.9 NE 0 0 0 3 1 0 0 0 4 3.6% 10.4 ENE 0 0 0 1 0 0 0 0 1 0.9% 11.7 E 0 0 2 1 0 0 0 0 3 2.7% 6.8 ESE 0 0 1 3 1 0 0 0 5 4.5% 10.2 SE 0 0 4 8 4 3 0 0 19 17.0% 11.7 SSE 0 0 1 8 9 2 0 0 20 17.9% 13.6 S 0 1 9 2 2 0 0 0 14 12.5% 7.4 SSW 0 0 7 0 0 0 0 0 7 6.3% 6.5 SW 0 0 5 0 0 0 0 0 5 4.5% 4.7 WSW 0 0 3 0 0 0 0 0 3 2.7% 4.4 W 0 0 1 0 0 0 0 0 1 0.9% 4.2 WNW 0 0 1 0 0 0 0 0 1 0.9% 3.9 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 1 1 1 1 0 0 4 3.6% 12.6 Total 0 2 40 38 25 7 0 0 112

% Of Total 0.0% 1.8% 35.7% 33.9% 22.3% 6.3% 0.0% 0.0%

Average speed for this table (MPH): 10.1 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-5

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS D Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 2 15 41 38 6 0 0 102 11.8% 12.0 NNE 0 2 14 29 17 1 0 0 63 7.3% 10.2 NE 0 1 9 19 3 0 0 0 32 3.7% 8.8 ENE 0 1 14 31 7 0 0 0 53 6.1% 9.5 E 0 2 7 16 7 0 0 0 32 3.7% 9.9 ESE 0 4 7 27 15 0 0 0 53 6.1% 10.6 SE 0 0 8 93 63 13 0 0 177 20.5% 12.5 SSE 0 1 11 53 53 14 0 0 132 15.3% 13.0 S 0 5 27 22 8 0 0 0 62 7.2% 8.1 SSW 0 3 11 7 0 0 0 0 21 2.4% 6.3 SW 0 2 12 8 0 0 0 0 22 2.5% 7.1 WSW 0 0 7 3 0 0 0 0 10 1.2% 6.5 W 0 3 8 1 0 0 0 0 12 1.4% 5.3 WNW 0 3 4 3 2 0 0 0 12 1.4% 7.6 NW 0 0 3 4 20 1 0 0 28 3.2% 13.7 NNW 0 4 9 16 20 5 0 0 54 6.2% 11.5 Total 0 33 166 373 253 40 0 0 865

% Of Total 0.0% 3.8% 19.2% 43.1% 29.2% 4.6% 0.0% 0.0%

Average speed for this table (MPH): 11.0 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-6

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS E Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 3 18 34 6 0 0 0 61 9.6% 8.8 NNE 0 7 24 17 1 0 0 0 49 7.7% 6.5 NE 0 4 4 3 0 0 0 0 11 1.7% 5.2 ENE 0 5 8 5 0 0 0 0 18 2.8% 5.7 E 0 8 15 12 3 0 0 0 38 6.0% 6.8 ESE 1 7 21 8 7 0 0 0 44 6.9% 7.0 SE 0 7 44 33 14 0 0 0 98 15.4% 8.2 SSE 0 0 37 30 17 1 0 0 85 13.3% 9.2 S 0 10 61 36 0 0 0 0 107 16.8% 6.7 SSW 0 11 25 8 0 0 0 0 44 6.9% 5.5 SW 0 4 5 13 1 0 0 0 23 3.6% 7.4 WSW 0 4 2 1 0 0 0 0 7 1.1% 3.8 W 0 4 3 1 0 0 0 0 8 1.3% 4.5 WNW 0 2 8 2 1 0 0 0 13 2.0% 5.9 NW 0 0 6 3 1 0 0 0 10 1.6% 7.8 NNW 0 2 6 11 2 0 0 0 21 3.3% 7.6 Total 1 78 287 217 53 1 0 0 637

% Of Total 0.2% 12.2% 45.1% 34.1% 8.3% 0.2% 0.0% 0.0%

Average speed for this table (MPH): 7.3 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-7

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS F Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 3 6 1 0 0 0 0 10 5.8% 4.8 NNE 0 0 1 6 0 0 0 0 7 4.1% 7.5 NE 0 4 7 0 0 0 0 0 11 6.4% 3.7 ENE 0 1 8 0 0 0 0 0 9 5.3% 4.2 E 0 10 6 1 0 0 0 0 17 9.9% 4.0 ESE 0 7 5 0 0 0 0 0 12 7.0% 3.6 SE 0 8 16 0 0 0 0 0 24 14.0% 4.6 SSE 0 15 23 1 0 0 0 0 39 22.8% 4.7 S 0 4 9 0 0 0 0 0 13 7.6% 4.6 SSW 0 0 1 0 0 0 0 0 1 0.6% 4.8 SW 0 1 2 0 0 0 0 0 3 1.8% 4.3 WSW 0 0 3 0 0 0 0 0 3 1.8% 5.0 W 0 1 1 0 0 0 0 0 2 1.2% 3.8 WNW 0 3 0 0 0 0 0 0 3 1.8% 2.1 NW 0 3 2 1 0 0 0 0 6 3.5% 4.1 NNW 0 2 8 1 0 0 0 0 11 6.4% 5.4 Total 0 62 98 11 0 0 0 0 171

% Of Total 0.0% 36.3% 57.3% 6.4% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 4.5 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-8

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS G Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 6 3 0 0 0 0 0 9 4.5% 3.9 NNE 2 4 14 0 0 0 0 0 20 9.9% 3.8 NE 0 13 12 0 0 0 0 0 25 12.4% 3.4 ENE 2 15 7 0 0 0 0 0 24 11.9% 2.8 E 0 18 8 0 0 0 0 0 26 12.9% 3.3 ESE 1 13 5 0 0 0 0 0 19 9.4% 3.0 SE 0 20 9 0 0 0 0 0 29 14.4% 3.4 SSE 0 4 1 0 0 0 0 0 5 2.5% 3.0 S 0 0 3 0 0 0 0 0 3 1.5% 3.9 SSW 0 1 0 0 0 0 0 0 1 0.5% 3.5 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 1 0 0 0 0 0 0 1 0.5% 1.6 W 0 0 9 0 0 0 0 0 9 4.5% 4.6 WNW 0 7 2 0 0 0 0 0 9 4.5% 3.1 NW 0 8 2 0 0 0 0 0 10 5.0% 2.7 NNW 0 8 4 0 0 0 0 0 12 5.9% 3.3 Total 5 118 79 0 0 0 0 0 202

% Of Total 2.5% 58.4% 39.1% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 3.3 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-9

Radioactive Release Effluent Report - RDRJFCA South Texas Project Joint Frequency Tables First Quarter 2012 Joint Frequency Table From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER ALL STABILITY CLASSES COMBINED Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 14 47 81 51 8 0 0 201 9.2% 10.3 NNE 2 14 54 66 27 1 0 0 164 7.5% 8.4 NE 0 22 33 26 4 0 0 0 85 3.9% 6.1 ENE 2 22 37 38 7 0 0 0 106 4.9% 6.9 E 0 38 38 32 10 0 0 0 118 5.4% 6.5 ESE 2 31 39 39 23 0 0 0 134 6.1% 7.7 SE 0 36 82 138 85 17 0 0 358 16.4% 10.0 SSE 0 20 75 103 91 21 0 0 310 14.2% 10.8 S 0 21 114 87 19 0 0 0 241 11.0% 7.6 SSW 0 15 54 30 0 0 0 0 99 4.5% 6.2 SW 0 7 27 33 4 0 0 0 71 3.3% 7.5 WSW 0 5 17 5 0 0 0 0 27 1.2% 5.3 W 0 8 24 5 0 0 0 0 37 1.7% 5.1 WNW 0 15 17 9 4 0 0 0 45 2.1% 6.0 NW 0 11 18 13 32 1 0 0 75 3.4% 9.9 NNW 0 16 31 31 25 8 0 0 111 5.1% 9.3 Total 6 295 707 736 382 56 0 0 2182

% Of Total 0.3% 13.5% 32.4% 33.7% 17.5% 2.6% 0.0% 0.0%

Average speed for this table (MPH): 8.6 Hours in above table with variable direction : 0 Total number of CALMs : 6 Total number of Invalid hours : 2 Total number of Valid hours : 2182 Total number of hours for period : 2184 9-10

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER 9-11

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS A Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 2 1 0 0 0 0 3 1.5% 7.0 NNE 0 0 2 2 0 0 0 0 4 2.0% 7.3 NE 0 0 6 2 0 0 0 0 8 3.9% 6.8 ENE 0 1 0 0 0 0 0 0 1 0.5% 1.5 E 0 0 0 2 0 0 0 0 2 1.0% 8.7 ESE 0 0 0 1 0 0 0 0 1 0.5% 7.7 SE 0 0 1 18 14 2 0 0 35 17.2% 12.7 SSE 0 0 0 26 9 0 0 0 35 17.2% 11.5 S 0 0 5 78 15 0 0 0 98 48.0% 10.2 SSW 0 0 1 6 0 0 0 0 7 3.4% 8.4 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 1 0 0 0 0 1 0.5% 8.4 WNW 0 0 1 0 0 0 0 0 1 0.5% 6.5 NW 0 0 1 2 0 0 0 0 3 1.5% 7.6 NNW 0 0 0 5 0 0 0 0 5 2.5% 9.8 Total 0 1 19 144 38 2 0 0 204

% Of Total 0.0% 0.5% 9.3% 70.6% 18.6% 1.0% 0.0% 0.0%

Average speed for this table (MPH): 10.4 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-12

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS B Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 5 0 0 0 0 0 5 3.2% 5.8 NNE 0 0 5 2 0 0 0 0 7 4.5% 7.5 NE 0 1 6 5 0 0 0 0 12 7.7% 7.2 ENE 0 0 8 2 1 0 0 0 11 7.1% 7.3 E 0 1 0 1 0 0 0 0 2 1.3% 5.7 ESE 0 0 0 5 4 0 0 0 9 5.8% 11.4 SE 0 0 3 22 17 0 0 0 42 26.9% 12.1 SSE 0 0 1 16 3 0 0 0 20 12.8% 10.8 S 0 0 5 22 4 0 0 0 31 19.9% 9.5 SSW 0 0 4 0 0 0 0 0 4 2.6% 5.5 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 1 0 0 0 0 0 1 0.6% 5.9 W 0 0 2 0 0 0 0 0 2 1.3% 5.5 WNW 0 0 1 0 0 0 0 0 1 0.6% 5.8 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 2 3 0 4 0 0 9 5.8% 12.8 Total 0 2 43 78 29 4 0 0 156

% Of Total 0.0% 1.3% 27.6% 50.0% 18.6% 2.6% 0.0% 0.0%

Average speed for this table (MPH): 9.9 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-13

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS C Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 6 1 0 0 0 0 7 3.7% 6.3 NNE 0 2 5 8 1 0 0 0 16 8.4% 7.7 NE 0 2 8 4 0 0 0 0 14 7.3% 6.1 ENE 0 0 3 3 1 0 0 0 7 3.7% 7.6 E 0 0 6 3 1 0 0 0 10 5.2% 7.4 ESE 0 0 9 5 4 0 0 0 18 9.4% 9.2 SE 0 0 4 26 9 0 0 0 39 20.4% 11.2 SSE 0 1 1 23 5 0 0 0 30 15.7% 10.4 S 0 0 10 12 10 0 0 0 32 16.8% 10.1 SSW 0 0 4 0 0 0 0 0 4 2.1% 5.8 SW 0 1 0 0 0 0 0 0 1 0.5% 2.6 WSW 0 0 0 1 0 0 0 0 1 0.5% 9.8 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 1 4 1 0 0 0 0 6 3.1% 5.8 NNW 0 0 1 3 2 0 0 0 6 3.1% 10.9 Total 0 7 61 90 33 0 0 0 191

% Of Total 0.0% 3.7% 31.9% 47.1% 17.3% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 9.2 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-14

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS D Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 2 15 10 0 0 0 0 27 5.0% 6.9 NNE 0 0 9 18 1 0 0 0 28 5.1% 8.5 NE 0 2 7 11 0 0 0 0 20 3.7% 7.6 ENE 0 8 10 2 0 0 0 0 20 3.7% 4.9 E 0 2 5 9 0 0 0 0 16 2.9% 7.7 ESE 0 1 10 18 16 0 0 0 45 8.3% 10.9 SE 0 0 17 82 52 11 0 0 162 29.8% 12.0 SSE 0 1 29 57 19 13 0 0 119 21.9% 10.8 S 0 1 16 31 6 0 0 0 54 9.9% 9.0 SSW 0 3 7 1 0 0 0 0 11 2.0% 4.9 SW 0 0 3 1 0 0 0 0 4 0.7% 6.2 WSW 0 0 0 1 0 0 0 0 1 0.2% 9.7 W 0 0 1 1 0 0 0 0 2 0.4% 6.7 WNW 0 0 1 0 0 0 0 0 1 0.2% 6.0 NW 0 1 7 1 0 0 0 0 9 1.7% 5.4 NNW 0 4 8 7 6 0 0 0 25 4.6% 8.7 Total 0 25 145 250 100 24 0 0 544

% Of Total 0.0% 4.6% 26.7% 46.0% 18.4% 4.4% 0.0% 0.0%

Average speed for this table (MPH): 9.9 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-15

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS E Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 3 12 2 0 0 0 0 17 2.9% 5.8 NNE 0 2 10 1 0 0 0 0 13 2.2% 5.4 NE 0 3 11 5 0 0 0 0 19 3.2% 6.1 ENE 0 3 11 0 0 0 0 0 14 2.4% 4.4 E 0 4 10 3 1 0 0 0 18 3.1% 6.3 ESE 0 2 18 7 1 0 0 0 28 4.8% 6.8 SE 1 5 61 63 10 1 0 0 141 23.9% 8.0 SSE 0 3 91 69 13 0 0 0 176 29.9% 8.1 S 0 1 42 44 3 0 0 0 90 15.3% 8.2 SSW 0 6 15 1 0 0 0 0 22 3.7% 4.9 SW 0 0 12 0 0 0 0 0 12 2.0% 5.8 WSW 0 2 0 0 0 0 0 0 2 0.3% 3.5 W 0 0 1 0 0 0 0 0 1 0.2% 4.1 WNW 0 4 0 0 0 0 0 0 4 0.7% 2.8 NW 0 3 3 3 3 0 0 0 12 2.0% 8.3 NNW 0 4 11 5 0 0 0 0 20 3.4% 6.5 Total 1 45 308 203 31 1 0 0 589

% Of Total 0.2% 7.6% 52.3% 34.5% 5.3% 0.2% 0.0% 0.0%

Average speed for this table (MPH): 7.4 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-16

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS F Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 4 1 1 0 0 0 0 6 2.7% 3.4 NNE 0 11 8 0 0 0 0 0 19 8.6% 3.4 NE 0 18 7 0 0 0 0 0 25 11.3% 3.1 ENE 1 11 4 0 0 0 0 0 16 7.2% 2.9 E 1 18 5 0 0 0 0 0 24 10.9% 2.6 ESE 0 27 9 1 0 0 0 0 37 16.7% 2.9 SE 0 20 24 1 1 0 0 0 46 20.8% 4.3 SSE 0 4 9 0 0 0 0 0 13 5.9% 4.2 S 0 1 1 0 0 0 0 0 2 0.9% 3.5 SSW 0 1 1 0 0 0 0 0 2 0.9% 4.2 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 1 0 0 0 0 0 0 1 0.5% 1.6 W 0 7 1 0 0 0 0 0 8 3.6% 2.6 WNW 1 5 0 0 0 0 0 0 6 2.7% 2.3 NW 0 5 4 0 0 0 0 0 9 4.1% 3.5 NNW 0 4 3 0 0 0 0 0 7 3.2% 3.9 Total 3 137 77 3 1 0 0 0 221

% Of Total 1.4% 62.0% 34.8% 1.4% 0.5% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 3.4 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-17

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER STABILITY CLASS G Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 12 4 0 0 0 0 0 16 6.7% 2.7 NNE 0 28 2 0 0 0 0 0 30 12.5% 2.5 NE 2 33 1 0 0 0 0 0 36 15.0% 2.1 ENE 1 10 2 0 0 0 0 0 13 5.4% 2.5 E 2 32 1 0 0 0 0 0 35 14.6% 1.8 ESE 1 29 0 0 0 0 0 0 30 12.5% 2.1 SE 1 26 1 0 0 0 0 0 28 11.7% 2.4 SSE 0 3 0 0 0 0 0 0 3 1.3% 2.2 S 0 0 0 0 0 0 0 0 0 0.0% 0.0 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 1 0 0 0 0 0 0 1 0.4% 2.1 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 1 13 0 0 0 0 0 0 14 5.8% 2.4 NW 0 9 2 0 0 0 0 0 11 4.6% 2.8 NNW 0 17 6 0 0 0 0 0 23 9.6% 3.2 Total 8 213 19 0 0 0 0 0 240

% Of Total 3.3% 88.8% 7.9% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 2.4 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-18

Radioactive Release Effluent Report - RDRJFCA South Texas Project Joint Frequency Tables Second Quarter 2012 Joint Frequency Table From : 04/01/2012 00:00 To : 06/30/2012 23:00 PRIMARY TOWER ALL STABILITY CLASSES COMBINED Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 21 45 15 0 0 0 0 81 3.8% 5.5 NNE 0 43 41 31 2 0 0 0 117 5.5% 5.6 NE 2 59 46 27 0 0 0 0 134 6.2% 4.8 ENE 2 33 38 7 2 0 0 0 82 3.8% 4.6 E 3 57 27 18 2 0 0 0 107 5.0% 4.4 ESE 1 59 46 37 25 0 0 0 168 7.8% 6.7 SE 2 51 111 212 103 14 0 0 493 23.0% 9.6 SSE 0 12 131 191 49 13 0 0 396 18.5% 9.4 S 0 3 79 187 38 0 0 0 307 14.3% 9.3 SSW 0 10 32 8 0 0 0 0 50 2.3% 5.5 SW 0 1 15 1 0 0 0 0 17 0.8% 5.7 WSW 0 4 1 2 0 0 0 0 7 0.3% 5.1 W 0 7 5 2 0 0 0 0 14 0.7% 4.1 WNW 2 22 3 0 0 0 0 0 27 1.3% 2.8 NW 0 19 21 7 3 0 0 0 50 2.3% 5.4 NNW 0 29 31 23 8 4 0 0 95 4.4% 7.1 Total 12 430 672 768 232 31 0 0 2145

% Of Total 0.6% 20.0% 31.3% 35.8% 10.8% 1.4% 0.0% 0.0%

Average speed for this table (MPH): 7.3 Hours in above table with variable direction : 0 Total number of CALMs : 12 Total number of Invalid hours : 39 Total number of Valid hours : 2145 Total number of hours for period : 2184 9-19

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER 9-20

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS A Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 1 1 0 0 0 2 1.2% 11.6 NNE 0 0 0 3 0 0 0 0 3 1.8% 9.4 NE 0 0 1 2 0 0 0 0 3 1.8% 8.6 ENE 0 0 1 0 0 0 0 0 1 0.6% 5.1 E 0 0 1 0 0 0 0 0 1 0.6% 4.9 ESE 0 0 0 0 3 0 0 0 3 1.8% 13.6 SE 0 0 0 5 3 0 0 0 8 4.8% 11.9 SSE 0 0 3 13 1 0 0 0 17 10.2% 9.6 S 0 0 5 52 0 0 0 0 57 34.1% 9.1 SSW 0 1 9 32 0 0 0 0 42 25.1% 8.1 SW 0 0 5 9 0 0 0 0 14 8.4% 8.1 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 3 0 0 0 0 0 3 1.8% 5.7 WNW 0 0 2 1 0 0 0 0 3 1.8% 7.5 NW 0 0 0 1 0 0 0 0 1 0.6% 8.6 NNW 0 0 1 5 3 0 0 0 9 5.4% 10.8 Total 0 1 31 124 11 0 0 0 167

% Of Total 0.0% 0.6% 18.6% 74.3% 6.6% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 9.0 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-21

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS B Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 1 5 0 0 0 0 6 5.5% 8.3 NNE 0 0 1 2 0 0 0 0 3 2.8% 7.6 NE 0 0 1 4 0 0 0 0 5 4.6% 8.4 ENE 0 0 1 0 0 0 0 0 1 0.9% 7.3 E 0 0 0 0 1 0 0 0 1 0.9% 14.5 ESE 0 0 0 3 3 0 0 0 6 5.5% 12.9 SE 0 0 1 11 1 0 0 0 13 11.9% 10.2 SSE 0 0 0 7 0 0 0 0 7 6.4% 10.8 S 0 0 8 28 0 0 0 0 36 33.0% 8.6 SSW 0 0 7 5 0 0 0 0 12 11.0% 7.5 SW 0 0 3 4 0 0 0 0 7 6.4% 7.4 WSW 0 0 4 0 0 0 0 0 4 3.7% 6.9 W 0 0 1 0 0 0 0 0 1 0.9% 7.5 WNW 0 0 1 0 0 0 0 0 1 0.9% 6.9 NW 0 0 1 1 0 0 0 0 2 1.8% 7.7 NNW 0 0 0 3 1 0 0 0 4 3.7% 10.9 Total 0 0 30 73 6 0 0 0 109

% Of Total 0.0% 0.0% 27.5% 67.0% 5.5% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 8.9 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-22

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS C Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 1 3 0 0 0 0 4 3.2% 8.7 NNE 0 0 3 0 0 0 0 0 3 2.4% 6.2 NE 0 0 4 0 0 0 0 0 4 3.2% 6.8 ENE 0 0 5 0 0 0 0 0 5 4.0% 6.2 E 0 0 1 1 0 0 0 0 2 1.6% 7.4 ESE 0 0 1 2 2 0 0 0 5 4.0% 10.3 SE 0 0 2 15 2 0 0 0 19 15.1% 10.5 SSE 0 0 5 16 0 0 0 0 21 16.7% 8.8 S 0 0 10 17 0 0 0 0 27 21.4% 8.0 SSW 0 0 6 4 0 0 0 0 10 7.9% 7.0 SW 0 0 7 3 0 0 0 0 10 7.9% 7.4 WSW 0 0 1 1 0 0 0 0 2 1.6% 7.7 W 0 0 3 0 0 0 0 0 3 2.4% 5.2 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 3 0 1 0 0 0 4 3.2% 9.1 NNW 0 0 1 6 0 0 0 0 7 5.6% 8.5 Total 0 0 53 68 5 0 0 0 126

% Of Total 0.0% 0.0% 42.1% 54.0% 4.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 8.3 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-23

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS D Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 3 11 13 0 0 0 0 27 5.9% 6.9 NNE 0 1 14 5 0 0 0 0 20 4.4% 6.1 NE 0 4 15 3 0 0 0 0 22 4.8% 5.5 ENE 0 2 24 0 0 0 0 0 26 5.7% 5.1 E 0 3 8 6 1 0 0 0 18 3.9% 6.6 ESE 0 0 11 13 2 0 0 0 26 5.7% 8.7 SE 0 0 23 45 2 0 0 0 70 15.3% 8.7 SSE 0 3 15 35 1 0 0 0 54 11.8% 7.8 S 0 0 29 50 0 0 0 0 79 17.2% 7.8 SSW 0 2 23 5 0 0 0 0 30 6.6% 6.0 SW 0 3 14 2 0 0 0 0 19 4.1% 5.6 WSW 0 1 7 0 0 0 0 0 8 1.7% 5.7 W 0 3 4 0 0 0 0 0 7 1.5% 4.0 WNW 0 3 4 4 0 0 0 0 11 2.4% 6.2 NW 0 1 6 1 3 1 0 0 12 2.6% 9.8 NNW 0 0 17 9 3 0 0 0 29 6.3% 8.0 Total 0 29 225 191 12 1 0 0 458

% Of Total 0.0% 6.3% 49.1% 41.7% 2.6% 0.2% 0.0% 0.0%

Average speed for this table (MPH): 7.3 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-24

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS E Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 1 9 2 0 0 0 0 12 2.1% 6.3 NNE 0 3 16 2 0 0 0 0 21 3.7% 5.5 NE 0 4 13 0 0 0 0 0 17 3.0% 4.6 ENE 0 4 9 0 0 0 0 0 13 2.3% 4.6 E 0 4 10 6 0 0 0 0 20 3.5% 6.1 ESE 0 1 18 1 0 0 0 0 20 3.5% 5.3 SE 0 2 49 11 0 0 0 0 62 10.8% 6.2 SSE 0 2 77 26 0 0 0 0 105 18.3% 6.6 S 0 2 115 43 0 0 0 0 160 27.8% 6.6 SSW 0 4 66 11 0 0 0 0 81 14.1% 6.1 SW 0 0 21 9 0 0 0 0 30 5.2% 6.9 WSW 0 0 4 1 0 0 0 0 5 0.9% 5.4 W 0 0 1 0 0 0 0 0 1 0.2% 5.9 WNW 0 3 0 0 0 0 0 0 3 0.5% 2.7 NW 0 0 7 0 0 0 0 0 7 1.2% 4.9 NNW 0 4 10 3 1 0 0 0 18 3.1% 6.3 Total 0 34 425 115 1 0 0 0 575

% Of Total 0.0% 5.9% 73.9% 20.0% 0.2% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 6.2 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-25

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS F Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 6 10 0 0 0 0 0 16 6.1% 4.0 NNE 0 8 9 0 0 0 0 0 17 6.4% 3.7 NE 1 8 4 0 0 0 0 0 13 4.9% 3.0 ENE 0 12 3 0 0 0 0 0 15 5.7% 3.0 E 0 14 10 1 0 0 0 0 25 9.5% 3.8 ESE 0 20 13 0 0 0 0 0 33 12.5% 3.4 SE 0 29 39 1 0 0 0 0 69 26.1% 4.0 SSE 0 5 39 1 0 0 0 0 45 17.0% 5.1 S 0 1 1 0 0 0 0 0 2 0.8% 3.6 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 3 0 0 0 0 0 0 3 1.1% 2.2 WNW 0 6 1 0 0 0 0 0 7 2.7% 2.9 NW 0 8 3 0 0 0 0 0 11 4.2% 2.9 NNW 0 5 3 0 0 0 0 0 8 3.0% 3.9 Total 1 125 135 3 0 0 0 0 264

% Of Total 0.4% 47.3% 51.1% 1.1% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 3.9 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-26

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER STABILITY CLASS G Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 9 2 0 0 0 0 0 11 6.6% 2.5 NNE 0 37 5 0 0 0 0 0 42 25.3% 2.9 NE 0 35 6 0 0 0 0 0 41 24.7% 2.9 ENE 0 13 2 0 0 0 0 0 15 9.0% 2.5 E 1 12 1 0 0 0 0 0 14 8.4% 2.4 ESE 0 4 0 0 0 0 0 0 4 2.4% 2.8 SE 0 0 2 0 0 0 0 0 2 1.2% 4.1 SSE 0 1 0 0 0 0 0 0 1 0.6% 2.9 S 0 0 0 0 0 0 0 0 0 0.0% 0.0 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 1 9 2 0 0 0 0 0 12 7.2% 2.6 NW 0 4 5 0 0 0 0 0 9 5.4% 3.7 NNW 0 10 5 0 0 0 0 0 15 9.0% 3.2 Total 2 134 30 0 0 0 0 0 166

% Of Total 1.2% 80.7% 18.1% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 2.9 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-27

Radioactive Release Effluent Report - RDRJFCA South Texas Project Joint Frequency Tables Third Quarter 2012 Joint Frequency Table From : 07/01/2012 00:00 To : 09/30/2012 23:00 PRIMARY TOWER ALL STABILITY CLASSES COMBINED Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 19 34 24 1 0 0 0 78 4.2% 5.9 NNE 0 49 48 12 0 0 0 0 109 5.8% 4.5 NE 1 51 44 9 0 0 0 0 105 5.6% 4.3 ENE 0 31 45 0 0 0 0 0 76 4.1% 4.2 E 1 33 31 14 2 0 0 0 81 4.3% 5.0 ESE 0 25 43 19 10 0 0 0 97 5.2% 6.5 SE 0 31 116 88 8 0 0 0 243 13.0% 7.0 SSE 0 11 139 98 2 0 0 0 250 13.4% 7.1 S 0 3 168 190 0 0 0 0 361 19.4% 7.6 SSW 0 7 111 57 0 0 0 0 175 9.4% 6.7 SW 0 3 50 27 0 0 0 0 80 4.3% 6.9 WSW 0 1 16 2 0 0 0 0 19 1.0% 6.1 W 0 6 12 0 0 0 0 0 18 1.0% 4.5 WNW 1 21 10 5 0 0 0 0 37 2.0% 4.2 NW 0 13 25 3 4 1 0 0 46 2.5% 6.0 NNW 0 19 37 26 8 0 0 0 90 4.8% 6.9 Total 3 323 929 574 35 1 0 0 1865

% Of Total 0.2% 17.3% 49.8% 30.8% 1.9% 0.1% 0.0% 0.0%

Average speed for this table (MPH): 6.4 Hours in above table with variable direction : 0 Total number of CALMs : 3 Total number of Invalid hours : 343 Total number of Valid hours : 1865 Total number of hours for period : 2208 9-28

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER 9-29

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS A Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 7 12 0 0 0 19 7.7% 13.2 NNE 0 0 3 13 3 0 0 0 19 7.7% 9.8 NE 0 0 4 5 1 0 0 0 10 4.0% 8.2 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 4 4 0 0 0 8 3.2% 11.9 ESE 0 0 0 3 0 0 0 0 3 1.2% 10.3 SE 0 1 0 13 11 0 0 0 25 10.1% 11.8 SSE 0 0 1 22 14 0 0 0 37 14.9% 12.1 S 0 0 5 53 7 0 0 0 65 26.2% 10.0 SSW 0 0 1 17 0 0 0 0 18 7.3% 9.4 SW 0 0 0 5 0 0 0 0 5 2.0% 9.6 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 1 0 1 0 0 0 2 0.8% 10.0 WNW 0 1 1 2 2 1 0 0 7 2.8% 10.4 NW 0 0 1 6 4 0 0 0 11 4.4% 11.1 NNW 0 0 2 5 9 3 0 0 19 7.7% 14.0 Total 0 2 19 155 68 4 0 0 248

% Of Total 0.0% 0.8% 7.7% 62.5% 27.4% 1.6% 0.0% 0.0%

Average speed for this table (MPH): 11.0 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-30

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS B Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 1 5 4 0 0 0 10 7.9% 10.4 NNE 0 0 5 5 1 0 0 0 11 8.7% 7.9 NE 0 0 5 4 3 0 0 0 12 9.5% 9.4 ENE 0 0 3 3 1 0 0 0 7 5.6% 8.6 E 0 0 0 0 1 0 0 0 1 0.8% 12.6 ESE 0 0 1 1 1 0 0 0 3 2.4% 9.5 SE 0 0 0 10 8 0 0 0 18 14.3% 12.3 SSE 0 0 1 7 5 0 0 0 13 10.3% 11.6 S 0 0 6 12 0 0 0 0 18 14.3% 8.1 SSW 0 0 3 3 0 0 0 0 6 4.8% 7.1 SW 0 0 2 0 0 1 0 0 3 2.4% 9.4 WSW 0 0 3 0 0 0 0 0 3 2.4% 5.2 W 0 0 1 0 0 0 0 0 1 0.8% 4.0 WNW 0 0 1 1 0 0 0 0 2 1.6% 6.0 NW 0 0 1 1 0 1 0 0 3 2.4% 12.0 NNW 0 0 5 3 6 1 0 0 15 11.9% 11.4 Total 0 0 38 55 30 3 0 0 126

% Of Total 0.0% 0.0% 30.2% 43.7% 23.8% 2.4% 0.0% 0.0%

Average speed for this table (MPH): 9.8 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-31

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS C Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 3 1 0 0 0 0 4 3.3% 8.4 NNE 0 0 5 6 0 0 0 0 11 8.9% 7.9 NE 0 0 10 6 2 0 0 0 18 14.6% 7.7 ENE 0 0 4 1 0 0 0 0 5 4.1% 6.5 E 0 0 1 3 1 0 0 0 5 4.1% 10.6 ESE 0 0 1 3 0 0 0 0 4 3.3% 9.0 SE 0 0 2 6 4 0 0 0 12 9.8% 10.6 SSE 0 0 3 3 7 0 0 0 13 10.6% 11.2 S 0 0 11 7 3 0 0 0 21 17.1% 8.5 SSW 0 1 5 2 1 0 0 0 9 7.3% 7.2 SW 0 0 1 1 0 0 0 0 2 1.6% 6.9 WSW 0 0 1 0 0 0 0 0 1 0.8% 5.1 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 1 1 0 0 0 0 0 2 1.6% 5.0 NNW 0 1 2 3 7 3 0 0 16 13.0% 13.1 Total 0 3 50 42 25 3 0 0 123

% Of Total 0.0% 2.4% 40.7% 34.1% 20.3% 2.4% 0.0% 0.0%

Average speed for this table (MPH): 9.2 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-32

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS D Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 1 8 27 18 0 0 0 54 11.6% 10.7 NNE 0 5 19 21 3 0 0 0 48 10.3% 7.6 NE 0 5 15 14 1 0 0 0 35 7.5% 6.5 ENE 0 4 8 10 0 0 0 0 22 4.7% 6.9 E 0 4 11 8 1 0 0 0 24 5.2% 6.9 ESE 0 3 6 12 1 0 0 0 22 4.7% 7.7 SE 0 1 11 48 8 0 0 0 68 14.6% 9.7 SSE 0 2 5 27 6 0 0 0 40 8.6% 10.1 S 0 0 31 17 3 0 0 0 51 10.9% 7.4 SSW 0 1 13 2 0 0 0 0 16 3.4% 6.3 SW 0 1 1 0 0 0 0 0 2 0.4% 2.8 WSW 0 1 1 1 0 0 0 0 3 0.6% 5.4 W 0 1 1 0 0 0 0 0 2 0.4% 4.3 WNW 0 2 2 2 0 0 0 0 6 1.3% 6.2 NW 1 1 2 7 1 3 0 0 15 3.2% 10.4 NNW 0 4 6 16 20 11 1 0 58 12.4% 13.5 Total 1 36 140 212 62 14 1 0 466

% Of Total 0.2% 7.7% 30.0% 45.5% 13.3% 3.0% 0.2% 0.0%

Average speed for this table (MPH): 9.0 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-33

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS E Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 3 25 14 1 0 0 0 43 7.8% 7.0 NNE 0 5 30 13 1 0 0 0 49 8.9% 6.2 NE 0 4 16 3 0 0 0 0 23 4.2% 5.4 ENE 0 5 15 3 0 0 0 0 23 4.2% 5.2 E 0 1 12 0 1 0 0 0 14 2.5% 5.7 ESE 0 0 20 6 1 0 0 0 27 4.9% 6.9 SE 0 3 36 42 2 0 0 0 83 15.1% 7.6 SSE 0 2 39 66 7 0 0 0 114 20.7% 8.5 S 0 6 34 15 1 0 0 0 56 10.2% 6.2 SSW 0 11 16 3 0 0 0 0 30 5.5% 4.6 SW 0 2 7 2 0 0 0 0 11 2.0% 5.8 WSW 0 2 6 0 0 0 0 0 8 1.5% 4.4 W 0 1 2 0 0 0 0 0 3 0.5% 4.8 WNW 0 1 7 0 0 0 0 0 8 1.5% 5.3 NW 0 0 6 4 0 0 0 0 10 1.8% 7.0 NNW 0 3 23 18 2 2 0 0 48 8.7% 7.7 Total 0 49 294 189 16 2 0 0 550

% Of Total 0.0% 8.9% 53.5% 34.4% 2.9% 0.4% 0.0% 0.0%

Average speed for this table (MPH): 6.9 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-34

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS F Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 6 10 1 0 0 0 0 17 6.3% 4.3 NNE 0 4 13 3 0 0 0 0 20 7.5% 5.5 NE 0 10 3 1 0 0 0 0 14 5.2% 3.9 ENE 1 13 8 0 0 0 0 0 22 8.2% 3.1 E 0 10 15 1 0 0 0 0 26 9.7% 4.1 ESE 0 9 28 0 0 0 0 0 37 13.8% 4.4 SE 0 10 50 5 0 0 0 0 65 24.3% 5.1 SSE 0 7 22 1 0 0 0 0 30 11.2% 4.4 S 0 4 2 0 0 0 0 0 6 2.2% 3.1 SSW 0 3 5 0 0 0 0 0 8 3.0% 3.5 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 1 0 0 0 0 0 1 0.4% 4.4 WNW 0 3 3 0 0 0 0 0 6 2.2% 3.3 NW 1 2 8 0 0 0 0 0 11 4.1% 4.1 NNW 0 1 4 0 0 0 0 0 5 1.9% 4.2 Total 2 82 172 12 0 0 0 0 268

% Of Total 0.7% 30.6% 64.2% 4.5% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 4.4 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-35

Radioactive Release Effluent Report - RDRJFC South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS G Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 1 13 12 0 0 0 0 0 26 6.3% 3.5 NNE 1 22 29 1 0 0 0 0 53 12.8% 4.1 NE 0 56 26 0 0 0 0 0 82 19.8% 3.1 ENE 2 51 8 0 0 0 0 0 61 14.7% 2.6 E 1 36 15 0 0 0 0 0 52 12.5% 2.9 ESE 0 27 14 0 0 0 0 0 41 9.9% 3.2 SE 0 25 10 0 0 0 0 0 35 8.4% 3.1 SSE 0 9 1 0 0 0 0 0 10 2.4% 2.6 S 0 5 1 0 0 0 0 0 6 1.4% 2.7 SSW 0 2 0 0 0 0 0 0 2 0.5% 2.3 SW 0 1 0 0 0 0 0 0 1 0.2% 1.5 WSW 0 1 0 0 0 0 0 0 1 0.2% 1.4 W 0 1 1 0 0 0 0 0 2 0.5% 2.6 WNW 0 6 1 0 0 0 0 0 7 1.7% 2.6 NW 0 8 7 0 0 0 0 0 15 3.6% 3.6 NNW 1 14 5 0 0 0 0 0 20 4.8% 2.8 0 1 0 0 0 0 0 0 1 0.2% 3.1 Total 6 278 130 1 0 0 0 0 415

% Of Total 1.4% 67.0% 31.3% 0.2% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 3.1 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-36

Radioactive Release Effluent Report - RDRJFCA South Texas Project Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER ALL STABILITY CLASSES COMBINED Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 1 23 59 55 35 0 0 0 173 7.9% 8.3 NNE 1 36 104 62 8 0 0 0 211 9.6% 6.4 NE 0 75 79 33 7 0 0 0 194 8.8% 5.1 ENE 3 73 46 17 1 0 0 0 140 6.4% 4.2 E 1 51 54 16 8 0 0 0 130 5.9% 5.1 ESE 0 39 70 25 3 0 0 0 137 6.2% 5.4 SE 0 40 109 124 33 0 0 0 306 13.9% 7.8 SSE 0 20 72 126 39 0 0 0 257 11.7% 8.8 S 0 15 90 104 14 0 0 0 223 10.2% 7.8 SSW 0 18 43 27 1 0 0 0 89 4.1% 6.2 SW 0 4 11 8 0 1 0 0 24 1.1% 6.7 WSW 0 4 11 1 0 0 0 0 16 0.7% 4.6 W 0 3 7 0 1 0 0 0 11 0.5% 5.1 WNW 0 13 15 5 2 1 0 0 36 1.6% 5.6 NW 2 12 26 18 5 4 0 0 67 3.1% 7.4 NNW 1 23 47 45 44 20 1 0 181 8.2% 10.4 0 1 0 0 0 0 0 0 1 0.0% 3.1 Total 9 450 843 666 201 26 1 0 2196

% Of Total 0.4% 20.5% 38.4% 30.3% 9.2% 1.2% 0.0% 0.0%

Average speed for this table (MPH): 7.1 Hours in above table with variable direction : 0 Total number of CALMs : 9 Total number of Invalid hours : 12 Total number of Valid hours : 2196 Total number of hours for period : 2208 9-37

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER 9-38

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS A Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 ****** 0.0 NNE 0 0 0 0 0 0 0 0 0 ****** 0.0 NE 0 0 0 0 0 0 0 0 0 ****** 0.0 ENE 0 0 0 0 0 0 0 0 0 ****** 0.0 E 0 0 0 0 0 0 0 0 0 ****** 0.0 ESE 0 0 0 0 0 0 0 0 0 ****** 0.0 SE 0 0 0 0 0 0 0 0 0 ****** 0.0 SSE 0 0 0 0 0 0 0 0 0 ****** 0.0 S 0 0 0 0 0 0 0 0 0 ****** 0.0 SSW 0 0 0 0 0 0 0 0 0 ****** 0.0 SW 0 0 0 0 0 0 0 0 0 ****** 0.0 WSW 0 0 0 0 0 0 0 0 0 ****** 0.0 W 0 0 0 0 0 0 0 0 0 ****** 0.0 WNW 0 0 0 0 0 0 0 0 0 ****** 0.0 NW 0 0 0 0 0 0 0 0 0 ****** 0.0 NNW 0 0 0 0 0 0 0 0 0 ****** 0.0 Total 0 0 0 0 0 0 0 0 0

% Of Total ******** ******** ******** ******** ******** ******** ******** ********

Average speed for this table (MPH): 0.0 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-39

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS B Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 ****** 0.0 NNE 0 0 0 0 0 0 0 0 0 ****** 0.0 NE 0 0 0 0 0 0 0 0 0 ****** 0.0 ENE 0 0 0 0 0 0 0 0 0 ****** 0.0 E 0 0 0 0 0 0 0 0 0 ****** 0.0 ESE 0 0 0 0 0 0 0 0 0 ****** 0.0 SE 0 0 0 0 0 0 0 0 0 ****** 0.0 SSE 0 0 0 0 0 0 0 0 0 ****** 0.0 S 0 0 0 0 0 0 0 0 0 ****** 0.0 SSW 0 0 0 0 0 0 0 0 0 ****** 0.0 SW 0 0 0 0 0 0 0 0 0 ****** 0.0 WSW 0 0 0 0 0 0 0 0 0 ****** 0.0 W 0 0 0 0 0 0 0 0 0 ****** 0.0 WNW 0 0 0 0 0 0 0 0 0 ****** 0.0 NW 0 0 0 0 0 0 0 0 0 ****** 0.0 NNW 0 0 0 0 0 0 0 0 0 ****** 0.0 Total 0 0 0 0 0 0 0 0 0

% Of Total ******** ******** ******** ******** ******** ******** ******** ********

Average speed for this table (MPH): 0.0 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-40

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS C Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 ****** 0.0 NNE 0 0 0 0 0 0 0 0 0 ****** 0.0 NE 0 0 0 0 0 0 0 0 0 ****** 0.0 ENE 0 0 0 0 0 0 0 0 0 ****** 0.0 E 0 0 0 0 0 0 0 0 0 ****** 0.0 ESE 0 0 0 0 0 0 0 0 0 ****** 0.0 SE 0 0 0 0 0 0 0 0 0 ****** 0.0 SSE 0 0 0 0 0 0 0 0 0 ****** 0.0 S 0 0 0 0 0 0 0 0 0 ****** 0.0 SSW 0 0 0 0 0 0 0 0 0 ****** 0.0 SW 0 0 0 0 0 0 0 0 0 ****** 0.0 WSW 0 0 0 0 0 0 0 0 0 ****** 0.0 W 0 0 0 0 0 0 0 0 0 ****** 0.0 WNW 0 0 0 0 0 0 0 0 0 ****** 0.0 NW 0 0 0 0 0 0 0 0 0 ****** 0.0 NNW 0 0 0 0 0 0 0 0 0 ****** 0.0 Total 0 0 0 0 0 0 0 0 0

% Of Total ******** ******** ******** ******** ******** ******** ******** ********

Average speed for this table (MPH): 0.0 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-41

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS D Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNE 0 0 0 0 0 0 0 0 0 0.0% 0.0 NE 0 0 0 0 0 0 0 0 0 0.0% 0.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SSE 0 0 0 0 0 0 0 0 0 0.0% 0.0 S 0 0 1 0 0 0 0 0 1 100.0%* 7.3 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 Total 0 0 1 0 0 0 0 0 1

% Of Total 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 7.3 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-42

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS E Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNE 0 0 0 0 0 0 0 0 0 0.0% 0.0 NE 0 0 0 0 0 0 0 0 0 0.0% 0.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SSE 0 0 0 0 0 0 0 0 0 0.0% 0.0 S 0 0 2 0 0 0 0 0 2 100.0%* 5.7 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 Total 0 0 2 0 0 0 0 0 2

% Of Total 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 5.7 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-43

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS F Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNE 0 0 0 0 0 0 0 0 0 0.0% 0.0 NE 0 0 0 0 0 0 0 0 0 0.0% 0.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SE 0 0 0 0 0 0 0 0 0 0.0% 0.0 SSE 0 1 3 0 0 0 0 0 4 57.1% 4.7 S 0 1 2 0 0 0 0 0 3 42.9% 4.5 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 Total 0 2 5 0 0 0 0 0 7

% Of Total 0.0% 28.6% 71.4% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 4.6 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-44

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER STABILITY CLASS G Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNE 0 0 0 0 0 0 0 0 0 0.0% 0.0 NE 0 0 0 0 0 0 0 0 0 0.0% 0.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 1 0 0 0 0 0 0 1 50.0% 2.1 SE 0 1 0 0 0 0 0 0 1 50.0% 3.1 SSE 0 0 0 0 0 0 0 0 0 0.0% 0.0 S 0 0 0 0 0 0 0 0 0 0.0% 0.0 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 Total 0 2 0 0 0 0 0 0 2

% Of Total 0.0% 100.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 2.6 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-45

Radioactive Release Effluent Report - RDRJFBA South Texas Project Batch Release Joint Frequency Tables First Quarter 2012 Joint Frequency Table - Batch Release Hours From : 01/01/2012 00:00 To : 03/31/2012 23:00 PRIMARY TOWER ALL STABILITY CLASSES COMBINED Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNE 0 0 0 0 0 0 0 0 0 0.0% 0.0 NE 0 0 0 0 0 0 0 0 0 0.0% 0.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 1 0 0 0 0 0 0 1 8.3% 2.1 SE 0 1 0 0 0 0 0 0 1 8.3% 3.1 SSE 0 1 3 0 0 0 0 0 4 33.3% 4.7 S 0 1 5 0 0 0 0 0 6 50.0% 5.4 SSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 Total 0 4 8 0 0 0 0 0 12

% Of Total 0.0% 33.3% 66.7% 0.0% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 4.7 Hours in above table with variable direction : 0 Total number of CALMs : 0 Total number of Invalid hours : 0 Total number of Valid hours : 12 Total number of hours for period : 12 9-46

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER 9-47

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS A Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 0 6 8 0 0 0 14 13.9% 12.7 NNE 0 0 0 6 3 0 0 0 9 8.9% 11.7 NE 0 0 2 1 0 0 0 0 3 3.0% 7.0 ENE 0 0 0 0 0 0 0 0 0 0.0% 0.0 E 0 0 0 1 0 0 0 0 1 1.0% 9.4 ESE 0 0 0 2 0 0 0 0 2 2.0% 10.0 SE 0 1 0 9 6 0 0 0 16 15.8% 11.0 SSE 0 0 0 15 10 0 0 0 25 24.8% 12.4 S 0 0 3 18 1 0 0 0 22 21.8% 9.2 SSW 0 0 1 0 0 0 0 0 1 1.0% 5.6 SW 0 0 0 1 0 0 0 0 1 1.0% 7.9 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 1 0 0 0 0 0 1 1.0% 4.6 WNW 0 0 1 0 0 0 0 0 1 1.0% 3.6 NW 0 0 1 0 0 0 0 0 1 1.0% 6.9 NNW 0 0 2 1 1 0 0 0 4 4.0% 9.7 Total 0 1 11 60 29 0 0 0 101

% Of Total 0.0% 1.0% 10.9% 59.4% 28.7% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 10.8 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-48

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS B Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 1 2 0 0 0 0 3 5.3% 8.0 NNE 0 0 1 5 0 0 0 0 6 10.5% 8.2 NE 0 0 1 2 1 0 0 0 4 7.0% 9.9 ENE 0 0 2 1 1 0 0 0 4 7.0% 8.7 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 0 1 0 0 0 0 0 1 1.8% 6.1 SE 0 0 0 6 3 0 0 0 9 15.8% 11.3 SSE 0 0 0 6 3 0 0 0 9 15.8% 11.7 S 0 0 4 5 0 0 0 0 9 15.8% 7.5 SSW 0 0 2 0 0 0 0 0 2 3.5% 5.0 SW 0 0 2 0 0 0 0 0 2 3.5% 4.3 WSW 0 0 2 0 0 0 0 0 2 3.5% 5.1 W 0 0 1 0 0 0 0 0 1 1.8% 4.0 WNW 0 0 1 0 0 0 0 0 1 1.8% 4.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 0 4 0 0 0 0 0 4 7.0% 6.4 Total 0 0 22 27 8 0 0 0 57

% Of Total 0.0% 0.0% 38.6% 47.4% 14.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 8.6 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-49

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS C Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 0 1 1 0 0 0 0 2 4.0% 9.7 NNE 0 0 2 1 0 0 0 0 3 6.0% 7.3 NE 0 0 5 3 1 0 0 0 9 18.0% 7.9 ENE 0 0 2 1 0 0 0 0 3 6.0% 6.8 E 0 0 0 0 0 0 0 0 0 0.0% 0.0 ESE 0 0 0 1 0 0 0 0 1 2.0% 8.9 SE 0 0 1 3 2 0 0 0 6 12.0% 10.3 SSE 0 0 1 3 3 0 0 0 7 14.0% 10.8 S 0 0 6 1 2 0 0 0 9 18.0% 8.3 SSW 0 1 4 0 0 0 0 0 5 10.0% 4.4 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 1 0 0 0 0 0 0 1 2.0% 2.5 NNW 0 0 2 1 1 0 0 0 4 8.0% 8.2 Total 0 2 24 15 9 0 0 0 50

% Of Total 0.0% 4.0% 48.0% 30.0% 18.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 8.2 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-50

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS D Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 1 5 7 6 0 0 0 19 15.8% 9.8 NNE 0 3 6 7 1 0 0 0 17 14.2% 7.0 NE 0 1 6 2 1 0 0 0 10 8.3% 6.5 ENE 0 1 0 0 0 0 0 0 1 0.8% 3.1 E 0 1 3 0 0 0 0 0 4 3.3% 4.9 ESE 0 1 2 3 0 0 0 0 6 5.0% 6.7 SE 0 0 4 11 3 0 0 0 18 15.0% 9.7 SSE 0 0 1 9 2 0 0 0 12 10.0% 10.6 S 0 0 9 3 2 0 0 0 14 11.7% 7.8 SSW 0 1 2 0 0 0 0 0 3 2.5% 4.6 SW 0 1 1 0 0 0 0 0 2 1.7% 2.8 WSW 0 1 1 0 0 0 0 0 2 1.7% 3.8 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 2 0 0 0 0 0 0 2 1.7% 2.3 NW 0 0 1 1 0 0 0 0 2 1.7% 6.9 NNW 0 4 1 3 0 0 0 0 8 6.7% 6.1 Total 0 17 42 46 15 0 0 0 120

% Of Total 0.0% 14.2% 35.0% 38.3% 12.5% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 7.8 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-51

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS E Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 1 9 5 1 0 0 0 16 10.1% 6.9 NNE 0 3 15 11 1 0 0 0 30 18.9% 6.7 NE 0 2 3 2 0 0 0 0 7 4.4% 6.0 ENE 0 3 3 0 0 0 0 0 6 3.8% 3.8 E 0 0 3 0 0 0 0 0 3 1.9% 4.5 ESE 0 0 4 1 0 0 0 0 5 3.1% 6.5 SE 0 2 16 25 2 0 0 0 45 28.3% 7.9 SSE 0 0 6 16 5 0 0 0 27 17.0% 9.6 S 0 0 6 0 0 0 0 0 6 3.8% 5.5 SSW 0 0 2 0 0 0 0 0 2 1.3% 6.5 SW 0 0 2 0 0 0 0 0 2 1.3% 5.7 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 1 0 0 0 0 0 1 0.6% 6.4 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NNW 0 1 7 1 0 0 0 0 9 5.7% 5.6 Total 0 12 77 61 9 0 0 0 159

% Of Total 0.0% 7.5% 48.4% 38.4% 5.7% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 7.2 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-52

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS F Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 0 2 5 1 0 0 0 0 8 7.2% 5.1 NNE 0 2 3 0 0 0 0 0 5 4.5% 3.9 NE 0 4 2 0 0 0 0 0 6 5.4% 4.2 ENE 1 3 3 0 0 0 0 0 7 6.3% 2.8 E 0 3 5 0 0 0 0 0 8 7.2% 4.2 ESE 0 5 10 0 0 0 0 0 15 13.5% 4.2 SE 0 5 29 5 0 0 0 0 39 35.1% 5.6 SSE 0 4 10 1 0 0 0 0 15 13.5% 4.3 S 0 3 0 0 0 0 0 0 3 2.7% 2.5 SSW 0 2 0 0 0 0 0 0 2 1.8% 2.5 SW 0 0 0 0 0 0 0 0 0 0.0% 0.0 WSW 0 0 0 0 0 0 0 0 0 0.0% 0.0 W 0 0 0 0 0 0 0 0 0 0.0% 0.0 WNW 0 0 0 0 0 0 0 0 0 0.0% 0.0 NW 1 1 0 0 0 0 0 0 2 1.8% 1.5 NNW 0 0 1 0 0 0 0 0 1 0.9% 5.0 Total 2 34 68 7 0 0 0 0 111

% Of Total 1.8% 30.6% 61.3% 6.3% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 4.5 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-53

Radioactive Release Effluent Report - RDRJFB South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER STABILITY CLASS G Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 1 7 4 0 0 0 0 0 12 5.4% 3.4 NNE 1 9 21 1 0 0 0 0 32 14.3% 4.4 NE 0 30 7 0 0 0 0 0 37 16.5% 2.6 ENE 2 31 2 0 0 0 0 0 35 15.6% 2.3 E 1 24 9 0 0 0 0 0 34 15.2% 2.9 ESE 0 15 3 0 0 0 0 0 18 8.0% 2.6 SE 0 19 6 0 0 0 0 0 25 11.2% 3.1 SSE 0 8 1 0 0 0 0 0 9 4.0% 2.5 S 0 3 0 0 0 0 0 0 3 1.3% 1.9 SSW 0 2 0 0 0 0 0 0 2 0.9% 2.3 SW 0 1 0 0 0 0 0 0 1 0.4% 1.5 WSW 0 1 0 0 0 0 0 0 1 0.4% 1.4 W 0 1 0 0 0 0 0 0 1 0.4% 1.5 WNW 0 1 0 0 0 0 0 0 1 0.4% 1.6 NW 0 5 0 0 0 0 0 0 5 2.2% 2.1 NNW 1 7 0 0 0 0 0 0 8 3.6% 2.1 Total 6 164 53 1 0 0 0 0 224

% Of Total 2.7% 73.2% 23.7% 0.4% 0.0% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 2.9 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-54

Radioactive Release Effluent Report - RDRJFBA South Texas Project Batch Release Joint Frequency Tables Fourth Quarter 2012 Joint Frequency Table - Batch Release Hours From : 10/01/2012 00:00 To : 12/31/2012 23:00 PRIMARY TOWER ALL STABILITY CLASSES COMBINED Wind Speed (1) (2) (3) (4) (5) (6) (7) (8)

(MPH) -> CALM 1.0 3.6 7.6 12.6 18.6 24.6 32.6 + Total % Of Avg.

- 3.5 - 7.5 - 12.5 - 18.5 - 24.5 - 32.5 Total Sector Speed N 1 11 25 22 15 0 0 0 74 9.0% 8.1 NNE 1 17 48 31 5 0 0 0 102 12.4% 6.4 NE 0 37 26 10 3 0 0 0 76 9.2% 4.8 ENE 3 38 12 2 1 0 0 0 56 6.8% 3.2 E 1 28 20 1 0 0 0 0 50 6.1% 3.5 ESE 0 21 20 7 0 0 0 0 48 5.8% 4.5 SE 0 27 56 59 16 0 0 0 158 19.2% 7.4 SSE 0 12 19 50 23 0 0 0 104 12.7% 9.3 S 0 6 28 27 5 0 0 0 66 8.0% 7.6 SSW 0 6 11 0 0 0 0 0 17 2.1% 4.3 SW 0 2 5 1 0 0 0 0 8 1.0% 4.4 WSW 0 2 3 0 0 0 0 0 5 0.6% 3.8 W 0 1 3 0 0 0 0 0 4 0.5% 4.1 WNW 0 3 2 0 0 0 0 0 5 0.6% 2.8 NW 1 7 2 1 0 0 0 0 11 1.3% 3.3 NNW 1 12 17 6 2 0 0 0 38 4.6% 5.7 Total 8 230 297 217 70 0 0 0 822

% Of Total 1.0% 28.0% 36.1% 26.4% 8.5% 0.0% 0.0% 0.0%

Average speed for this table (MPH): 6.4 Hours in above table with variable direction : 0 Total number of CALMs : 8 Total number of Invalid hours : 8 Total number of Valid hours : 822 Total number of hours for period : 830 9-55

v t e Letter Sequence Request
TAC:ME4938, (Approved, Closed)
Initiation Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request Acceptance Administration Meeting Questions 6 July 2011 4 August 2011 18 August 2011 18 August 2011 1 September 2011 28 September 2011 29 February 2012 14 February 2012 29 February 2012 25 June 2012 Answers 22 September 2011 18 October 2011 5 July 2011 5 July 2011 23 August 2011 6 September 2011 12 September 2011 17 November 2011 19 January 2012 16 February 2012 12 March 2012 6 March 2013 Results Approval, Approval, Approval, Approval Other: ML110872079, ML11145A064, ML11256A057, ML11256A058, ML12086A081, ML12264A642, ML13029A497, ML13063A071, ML13198A056, ML13253A163, ML16118A311, NOC-AE-12002780, Clarification of Information in Support of the Review of the License Renewal Application, NOC-AE-13002945, Update to License Renewal Application - Environmental Permits
MONTHYEAR2012-11-30 [Table View]

NOC-AE-13003000, Radioactive Effluent Release Report

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NOC-AE-13003000, Radioactive Effluent Release Report

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