Text

Annual Environmental & Annual Radiological Environmental Operating Reports
	ML021260072
Person / Time
Site:	South Texas
Issue date:	04/29/2002
From:	Gerry Powell; South Texas
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	NOC-AE-02001314
	Download: ML021260072 (55)
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SEwmlwM Nuclear Operating Company South Texs ProjectElectrc Genemrain Station PO. Box 289 Wadsworth Texas 77483 -AAv-April 29, 2002 NOC-AE-02001314 10CFR50.36b U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 South Texas Project Units 1 and 2 Docket Nos. STN 50-498, STN 50-499 2001 Annual Environmental and Annual Radiological Environmental Operating Reports Pursuant to the South Texas Project (STP) Unit 1 Operating License NPF-76, Unit 2 Operating License NPF-80 Appendix B, Environmental Protection Plan (Nonradiological), and Technical Specification 6.9.1.3, attached are the 2001 Annual Environmental and Annual Radiological Environmental Operating Reports.

If you have any questions, please contact J. D. Sherwood at (361) 972-8766 or me at (361) 972-7566.

G.T. Powell Manager, Health Physics RDP

Attachment:

2001 Annual Environmental and Annual Radiological Environmental Operating Reports.

O:WP\NL\NRC-AP\RREP-2002\02001314 STI 31439136

NOC-AE-02001314 Page 2 cc:

(paper copy) (electronic copy)

Ellis W. Merschoff A. H. Gutterman, Esquire

Regional Administrator, Region IV Morgan, Lewis & Bockius LLP U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 M. T. HardtlW. C. Gunst

Arlington, Texas 76011-8064 City Public Service U. S. Nuclear Regulatory Commission Mohan C. Thadani

Attention: Document Control Desk U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike R. L. Balcom

Rockville, MD 20852 Reliant Energy, Inc.

Richard A. Ratliff A. Ramirez

Bureau of Radiation Control City of Austin Texas Department of Health 1100 West 49th Street C. A. Johnson*

Austin, TX 78756-3189 AEP - Central Power and Light Company Cornelius F. O'Keefe Jon C. Wood

U. S. Nuclear Regulatory Commission Matthews & Branscomb P. 0. Box 289, Mail Code: MN116 Wadsworth, TX 77483 C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704

Attachment not included with electronic copies O:WP\NL\NRC-AP\RREP-2002\02001314 STI 31439136

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-flu Please visit our web site at http://www.stpnoc.comn T he 2001 one Annual report Environmental the requirements forOperating Report the Annual for the SouthOperating Environmental Texas Project Electric Report foundGenerating Station in Appendix B tocombines in Operating License Nos. NPF-76 and NPF-80 and requirements for the Annual Radiological Environmental Operating Report found in part A of the station's Offsite Dose Calculation Manual.

Photographs By: Steve Antonio Graphics Design & Layout: Ana M. Perez Gwenna Kelton Faith V. Perez Carolyn Smith STP Photo Library

Completed in accordance with Technical Specifications for United States Nuclear Regulatory Commission License Nos.

NPF-76 & NPF-80 April 2001 Authored by:

Gordon E. Williams, CHP Health Physicist Health Physics Division and P eW n TrAis, J.D., CHM Staff Consultant Chemistry Division Technical Review:

Leonard M. Earls, Ph.D., CHP Health Physicist Health Physics Division Approved by:

Gerald T. Powell Manager Health Physics Division 2001 Annual Environmental Operating Report SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

Tabf of Contents S7 Page Executive Summary ...................................................................................................................... 1-1 Site and Area Description ............................................................................................................. 2-1 N on-Radiological Environm ental Introduction and Summary ......................................................... 3-1 Non-Radiological Environm ental Operating Report ...................................................................... 4-1 V Environmental Conditions

Aquatic and Ecological M onitoring ........................................................................... 4-1

Water Quality M anagem ent ..................................................................................... 4-2

Air Quality M anagem ent ....................................................................................... 4-5

N on-Radioactive Waste M anagem ent ...................................................................... 4-6

Chem ical Control and Managem ent .......................................................................... 4-8 V Environm ental Protection Plan Status .............................................................................. 4-9 Radiological Environm ental Introduction and Summary ................................................................. 5-1 Radiological Environm ental Operating Report ............................................................................... 6-1 V Program Description ....................................................................................................... 6-1 V Analysis of Results and Trends ........................................................................................ 6-5 V Land U se Census .......................................................... .......................................... 6-8 V Quality Assurance ........................................................................................................... 6-9 List of Tables V Table 1: Radiological Environm ental Monitoring Program .............................................. 6-11 V Table 2: Sample M edia and Location Descriptions ........................................................ 6-13 V Table 3: 2001 Radiological Environmental M onitoring Program Analysis Summ ary .......................................................................... 6-17 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

Tab e of Contents Page List of Figures Figure 4-1: 1997 Groundwater Pumpage Matagorda County ........................................... 4-2 Figure 4-2: Historical Groundwater Usage ....................................................................... 4-3 Figure 4-3: 2001 Water U se Sources .............................................................................. 4-3 Figure 4-4: 2001 Non-Radioactive Waste Management ................................................... 4-6 Figure 4-5: Hazardous Waste Generation H istorical C om parison ................................................................................... 4-7 Figure 4-6: 2001 Non-Radioactive Waste Generation ...................................................... 4-8 Figure 6-1: Radiological Environmental Monitoring Program Designated Sample Location Map (Off Site) .................................... 6-2 Figure 6-2: Radiological Environmental Monitoring Program Designated Sample Location Map (on Site) ..................................... 6-3 Figure 6-3: Radiological Environmental Monitoring Program Zone Location M ap ......................................................................... 6-4 Figure 6-4: Historical Comparison of Average Quarterly B eta Activity ................................................................................... 6-5 Figure 6-5: Environmental Dosimeter Comparisons .......................................................... 6-5 Figure 6-6: Historical Comparison of Cobalt-58 and Cobalt-60 in Main Cooling Reservoir Sediment .............................................................. 6-6 Figure 6-7: Calculated Cumulative Curies of Cobalt-60 in the M ain Cooling Reservoir ........................................................................ 6-6 Figure 6-8: Historical Comparison of Tritium Added to and Remaining in the Main Cooling Reservoir ................................................ 6-7 Figure 6-9: Historical Comparison of Tritium Activity in Surface Water ............................................................................................ 6-8 Figure 6-10: 2001 Radiological Laboratory Quality Assurance Program Performance .................................................................................... 6-9 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

I Ai Executive Summary his report describes environmental the monitoring programs, radiological and non-radiological, conducted at the South Texas Project during 2001. Included in this report are the Environmental Protection Plan Status, the results of the Radio logical Environmental Monitoring Program and the Land Use Census.

Radiation and radioactivity in the environment are constantly monitored within a 15-mile radius baseline values to determine if detect small changes in the envi of the South Texas Project. Sam changes in radioactivity levels are ronment. The United States pling locations are selected using attributable to station operations Nuclear Regulatory Commission weather, land use and water use or other causes such as previous also has a required "reporting information. Two types of sam nuclear weapons testing programs level." Licensed nuclear facilities pling locations are used. The first and natural variations. must prepare a special report and type, control stations, are located Radioactivity levels in the increase their sampling if any mea in areas that are beyond measur South Texas Project's environ sured radiation level is equal to or able influence of the South Texas ment frequently fall below the greater than this reporting level.

Project or any other nuclear facil minimum detection capabilities of No sample from the South Texas ity. The sample results from these the state-of-the-art scientific in Project has ever reached or ex stations are used to explain radia struments. Samples with radiation ceeded a reporting level.

tion from sources other than the levels that cannot be detected are Measurements made are di South Texas Project. Indicator below the Lower Limits ofDetec vided into four categories or path stations are the second type of sta tion. The United States Nuclear ways based upon how the results tions. The samples from these sta Regulatory Commission requires may affect the public. Airborne, tions measure any radiation con that equipment used for radiologi waterborne, ingestion and direct tributed to the environment by the cal monitoring must be able to radiation are the four pathways project. Indicator stations are lo detect specified minimum limits for that are sampled. Each pathway cated in areas close to the South certain types of samples. This is described below.

Texas Project where any plant re ensures that radiation measure V The airborne pathway is leases would be at the highest con ments are sufficiently sensitive to sampled in areas around the centration.

Prior to initial operation of the TEASOE TAM PEFRAC I South Texas Project, samples During 2001, as in each previ this dose may be compared to the were collected and analyzed to ous year, operation of the South 360 millirem average annual radia determine the amount of radioac Texas Project created no ad tion exposure to people in the tivity present in the area. These verse environmental effects or United States from natural and results are used as a "pre-opera health risks. The maximum ra medical sources. Natural radiation diation exposure calculated for sources in the environment contrib tional baseline." Results from the a hypothetical person living at the ute most of the radiation exposure indicator stations are compared to boundary of the South Texas to humans while nuclear energy both current control sample re Project during 2001 was less operations contribute less than one sults and the pre-operational than one millirem. For reference, millirem.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 Environmentaf Report South Texas Project by mea tope consistently detected in show no radioactivity from the suring radioactivity of iodine water samples and was mea South Texas Project. This in and particulate air filters. The sured in the shallow aquifer, dicates that the station pro 2001 airborne results were the Main Cooling Reservoir duces no detectable effect similar to pre-operational lev and other bodies of water offsite from this pathway.

els with only naturally occur onsite. The average tritium V The ingestion pathway in ring radioactive material unre level changed very little in the cludes broadleaf vegetation, lated to the operation of the Main Cooling Reservoir over agricultural products and food South Texas Project detected. the past year and remained products. Naturally occurring V The waterborne pathway in below United States Nuclear isotopes were detected at av cludes samples taken from Regulatory Commission re erage environmental levels in surface water, ground water porting limits and within the samples. Man-made iso and drinking water. Also in United States Environmental topes found in the samples cluded in this path are sedi Protection Agency drinking were consistent with values ment samples taken from the water standards. Sediment found in pre-operational Main Cooling Reservoir and samples from the Main Cool samples.

the Colorado River. Iodine ing Reservoir continue to V The direct exposure pathway 131 was identified in the indi show traces of plant-related measures environmental ra cator station on the Colorado isotopes. The amount of diation doses using thermolu River but was also identified plant-related isotopes found in minescent dosimeters. These in the control station above reservoir bottom sediment results are consistent with the the Bay City Dam on the samples has decreased since readings from previous years Colorado River. This dem 1992 because less Cobalt-60 and continue to show no ef onstrates that the Iodine- 131 has been added to the reser fect from plant operations.

was added to the Colorado voir by plant effluents than has The South Texas Project con River by an industrial or medi undergone radioactive decay. tinues to operate with no negative cal user of the isotope prior As expected, the Cobalt-58 effect on the population or the en to reaching the environs of the has decreased to below de vironment. The exposure for South Texas Project. Tritium tectable levels. Offsite sedi people living in the area is main was the only man-made iso- ment samples continue to tained at less than one millirem per year. Environmental programs at the site monitor known and pre dictable relationships between the operation of the South Texas Project and the surrounding area.

These monitoring programs verify that the operation of the South Texas Project has no detectable impact offsite and is well within state and federal regulations and guide lines. These programs are verified by the state of Texas through col lection and analysis of samples and placement of the state's thermolu minescent dosimeters.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

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,e South Texas Project is 21, 1987, obtained initial critical the reactor produces the heat.

'7ocated on 12,220 acres in ity on March 8, 1988, and was The fuel for a nuclear reactor I Matagorda County Texas, declared commercially operational is uranium. It is formed into cylin approximately 15 miles southwest on August 25, 1988. Unit 2 re drical ceramic pellets, each about of Bay City along the west bank ceived a low-power testing license the size ofthe end ofyour little fin ofthe Colorado River. The South on December 16, 1988, obtained ger. One pellet has the energy Texas Project isjointly owned by initial criticality on March 12, potential of about a ton of coal.

Reliant Energy - Houston Light 1989, and was declared commer Millions of these pellets are ing & Power Company, Central cially operational on June 19, stacked in fuel rods that are ar Power and Light Company, the 1989. Both units together produce ranged into assemblies that make City of Austin, TX and the City enough electricity to serve over a up the core of the reactor. The e Public Service Board of San An use ofuranium allows us to con tonio. Until late 1997, the Hous m the South Texas serve natural gas, oil and coal and ton Lighting & Power Company 4%roject Works to avoid the associated produc was the designated Project Man Fossil-fueled and nuclear tion of greenhouse gases.

ager for the owners. In Novem powered steam generating plants A reactor starts operating ber of 1997, the STP Nuclear Op operate on the same principle. when control rods in the core are crating Company assumed opera Fuel is used to produce heat to withdrawn and fissionbegins. The tional control of the South Texas convert water into high-pressure fuel rods heat water circulating in Project and responsibility for steam. The steam is directed sealed, stainless steel piping that implementation of all environmen through a turbine to tum a gen passes through large heat ex tal programs. erator. In a fossil fuel plant, bum changers called steam generators.

The South Texas Project has ing coal, lignite, oil or natural gas The water in the reactor is pres two 1,250 megawatt-electric in a boiler produces the heat. In a surized to prevent boiling. This is Westinghouse pressurized water nuclear plant, the reactor replaces why the South Texas Project's reactors. Unit 1 received a low the boiler and the "fissioning" or reactors are called "pressurized power testing license on August splitting of uranium atoms inside water reactors."

SECONDARYLOOP "GENERAT To I-CIRCULATING PUMP

.1_ CONDENSATE PUMP RESERVOIR (7000 ACRE LAKE)

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2001 Environmentaf Reyort gas emissions. The International Chamber of Commerce's support reaffirms the significant carbon re ductions achieved by nuclear en LA fK ergy in many countries. Nuclear power plants produce approxi 4- Y mately 20 percent of the nation's electricity while saving the equiva lent of approximately 164 million metric tons of carbon, as well as 2.4 million tons of nitrogen oxide emissions and 5.1 million tons of sulfur doxide, from entering the ea osphere annually.

The Site This hot, pressurized water Late in 1998 and again in Sixty-five of the entire 12,220 heats a separate supply of water 2001, in a continuation of strong acres at the South Texas Project in the steam generators to pro business and industry support for are occupied by the two power duce steam that is directed through nuclear energy, the International plants. Plant facilities include a the blades of a turbine generator Chamber of Commerce recom 7,000-acre main cooling reservoir to produce electricity. The steam mended that delegates at the and a 47-acre essential cooling is then fed to a condenser where United Nations negotiations on pond. Many smaller bodies of a separate supply of cooling wa global climate change include water onsite include wetlands, ter from the reservoir turns it back nuclear energy as an option for Kelly Lake, drainage ditches, into water that is then pumped meeting increased electricity de sloughs and depressions. Much back to the steam generator for mand while avoiding greenhouse of the land east of the cooling res-reuse. A diagram of the plant water systems is on the preceding page.

In addition to its safety sys tems, the South Texas Project has many built-in physical barriers that would prevent the release of ra dioactive materials in the unlikely event of an accident. The most visible ones are the 200-foot-tall, domed containment buildings with steel-reinforced walls four feet thick. Inside each of these mas sive structures, two more concrete walls provide another 11 feet of shielding. The reactor vessel itself has steel walls six inches thick, and the fuel pellets inside itare sheathed in hardened metal tubes.

SOUTH TEXAS PROJECT ELECTRIC GENERATINS STATION

Site Area Descrittion ervoir is leased for cattle grazing. Mexico. Currently shrimp, oys species of tern, have found that Approximately 1,700 acres re ters, and crab are the predomi the plant's 7,000-acre cooling res main in a more natural state as a nant commercial fish while fin ervoir provides a good resting lowland habitat. A 110-acre wet fishes have been commercially less place during their migrations. The land habitat area was established important in recent years. station also established a man in 1996 on previously unused land Although the surrounding area made wetland habitat in 1996 that located northeast of the power is heavily cultivated, significant attracts an increasing diversity of plants. The area surrounding the amounts of woodlands, thicket, migratory fowl and other wildlife.

South Texas Project is character brush, fields, marsh and open Since 1997, the 15-mile-wide ized by coastal plain with farmland water exist to support wildlife. area that includes the South Texas and pasture predominating. Local The area lies in the southern re Project has had the highest num relief of the area is characterized gion of the central flyway and is ber of bird species nationwide in by flat lnd, approximately 23 feet host to an abundance of migratory the National Audubon Society's ab a level. birds. The local estuary environ annual Christmas Bird Count.

The Area ments provide the necessary habi The climate of the region is The economic base for this tat for a variety of fish types to subtropical maritime, with conti area primarily is agricultural re complete their life cycles. The nental influence. It is character lated. Most of the land near the area also affords opportunity for ized by short, mild winters and site is used for the production of recreational hunting and fishing. long, hot and humid summers.

five major agricultural products: The South Texas Project is home Rainfall is usually abundant beef, rice, grain sorghum, soy to many species of animals. Our throughout the year with an annual beans and cotton. In addition to inhabitants include American alli average of approximately the agriculture industry, there is gators, a family of osprey, bald forty-two inches. The prevailing commercial fishing in the lower eagles and deer. In winter, literally wind direction is from the south Colorado River, East and West hundreds of thousands of water southeast, shifting to north-north Matagorda Bays, Intracoastal fowl, principally migratory geese east for short intervals during the Waterway and the Gulf of as well as white pelicans and many winter months.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

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Non-RadlofogicafEnvironmentafIntroduction and Summanry he South Texas Project is ommitted to the produc tion of electricity in a safe, reliable, and economical manner using nuclear energy. The station's programs, policies and business plan objectives also incorporate a com mitment to environmental excellence and sound environmental manage ment. The dedication ofstationper sonnel who develop, implement and monitor site environmental protec tion programs and compliance ex emplify this commitment.

The station's commitment to sound environmental management is illustrated by the following en ance with laws and regulations to vironmental successes in 200 1: encompass the integration of Significant reductions in non sound environmental practices into radiological waste generation our daily operational and business Nonradiological environmental Responsible management and decisions. The people at the conditions and performance at the conservation of water and air South Texas Project understand South Texas Project during 2001 remained satisfactory and demon resources. the need to balance economic, strated that the South Texas Everyone has a responsibility operational and environmental is Project continued to operate in an to protect the environment. Com sues for the benefit of the station environmentally responsible man mitment to environmental respon and the public. The South Texas ner. The South Texas Project sibility is an integral component of Project understands that we must achieved and maintained expected high standards of environmental the South Texas Project operat hold ourselves to the highest prin performance and compliance ing policy. This responsibility ciples ofresponsibility for our envi throughout 2001.

reaches further than mere compli- ronmental and station activities. V SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

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Non-Radaofogicaf Environmentaf Oyerating Ryort A Environmental Conditions ing conditions. Ecological condi cies have been observed during describes the South Texas tions onsite in 2001 remained gen informal surveys of the site's di his section Project's of the report erally unchanged and satisfactory.

non-radiological verse natural and man-made habi environmental program perfor In 1996, the South Texas tats.

mance and environmental condi Project and Houston Industries The South Texas Project con tions from January 1through De Incorporated (now Reliant En tinues to provide vital habitat for cember 31, 2001. The STP ergy- HL&P) initiated ajoint ef more than 125 different species of Nuclear Operating Company en fort with Ducks Unlimited, Texas wintering and resident birds, in vironmental staff closely monitors Parks and Wildlife, the United cluding several species of tern environmental conditions and per States Fish and Wildlife Service, and white pelicans. In 1998, a formance at the South Texas and the United States Department small number of black skimmers Project. Reliant Energy, Inc. pro of Agriculture Natural Resources established nests on a remote vided support and technical as Conservation Service to establish parking lot at the station. Special sistance to the South Texas a 110-acre wetland habitat for precautions were taken to protect Proj ect migratory waterfowl at the station. the black skimmers' nesting area QUATIC AND This habitat area immediately at in hopes that this species would COLOGICAL tracted a variety of bird species continue to return to the site. In ONITORING and other wildlife and has contin 1999, the skimmers and a small The South Texas Project lo ued to support an increasing di population of least terns did re cation falls within the Texas Land versity of plants and animals. The turn in increased numbers. The Resource Area designation as wetland project received the nesting populations of the return coastal prairie and can be divided Ducks Unlimited Habitat Conser ing skimmers and least terns ap into two broad ecological areas vation Award in 1996 and a peared relatively stable in 2001.

based on topography, soils and United States Department of Ag Intensive bird nesting continues vegetation. The bottomland area riculture Conservation Award in throughout the lowland habitat, is a swampy, marshy area that oc 1999 for habitat preservation. An particularly in a heron rookery cupies approximately 1,700 acres observation trail adjacent to the around the perimeter of Kelly of the site near the Colorado wetland habitat allows easy ac Lake. U. S. Fish and Wildlife River. This area provides an im cess and viewing by visitors. Service biologists estimate that portant habitat for birds and other The South Texas Project and over half of Texas' breeding adult wildlife. A spoil impoundment the wetland habitat project are Gull-billed Tern population nest constructed in 1972 by the United located on the state-sponsored on the internal dikes of the Main States Army Corps of Engineers Great Texas Coastal Birding Trail Cooling Reservoir. The U. S.Fish is included in this area. In addi that spans the entire Texas Gulf and Wildlife Service considers tion, a 110-acre wetland habitat Coast from Brownsville to the nesting of Gull-billed Terns in area that attracts a variety of bird Louisiana border. Several bird Texas uncommon.

groups and other wildlife was es species listed on the state and fed Although no specific site tablished in 1996 on previously eral threatened or endangered aquatic monitoring studies were unused land located northeast of species lists have been observed required in 2001 by the United the power plants. The remaining at the wetland habitat and else States Environmental Protection area of the site offers diverse habi where onsite. These include the Agency or the State of Texas, the tats for mammals and several types bald eagle, peregrine falcon, wood South Texas Project continues to of birds. South Texas Project en stork, white-faced ibis, wood ibis monitor important wildlife species vironmental staff regularly moni and white-tailed hawk. Additional to detect population changes.

tor the site's environs for chang- migratory and resident bird spe- These observations indicate that SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

the Essential Cooling Pond, and 1997 Matagorda County Groundwater Pumpage (Texas Water Development Board) is used for other industrial pur poses onsite. Surface water from the Main Cooling Reservoir and the Essential Cooling Pond is used 34%

as cooling water for plant activi ties. Water from the Colorado I I Municipat River replenishes the Main Cool ing Reservoir via intermittent pumping periods. Surface water

Manufacturing diverted to the Main Cooling Res 4o/o [ Steanm-Eleccmn ervoir from the Colorado River 11% 2%/ *Mining 10/6 11 %

Imgation accounted for approximately 98 MLivestock percent of the water used at the South Texas Project in 2001.

Figure 4-1 Figure 4-1 illustrates the vari the site provides high-quality habi onsite are regulated under the Safe ous users of groundwater sources tat in which a wide range of ani Drinking Water Act, the Federal in Matagorda County in 1997 mals live. The site also continues Clean Water Act and the Texas based on information distributed to attract extensive wildlife popu Water Quality Act. Collectively, by the Texas Water Development lations, offering a refuge for resi these acts provide for the safe Board. At that time, the South dent species as well as seasonal guarding of public drinking water Texas Project accounted for only migrants. The lowland habitat lo supplies and maintaining the integ 10 percent of the county's cated between the Colorado rity of state and federal waters. groundwater usage. Consistent River and the east bank of the The SouthTexas Projectuses both with station environmental prin Main Cooling Reservoir offers a surface water and groundwater ciples encoumging efficient water significant source of water year for station purposes. Groundwa usage and conservation, the sta round. These natural resource terprovides onsite drinking water tion has carefully managed its areas, in concert with numerous for station personnel, replenishes groundwater usage over the last additional wetland and grassland areas, offer the key ingredients necessary to sustain the extensive wildlife population at the South TERUALectT TRQUALITY 4AGEMENT Water is an essential compo nent in electricity production, and all electric utilities must comply with extensive federal, state and local water regulations. These regulations govern virtually every aspect of business operations at the South Texas Project. Water usage and wastewater treatment SOUTH TEXAS PRflEJT ELECTRIC SENERATtNS STATION A C'-'<,

ýI Non-Raafofogicaf Environmentaf Oyerating Reyort from the Colorado River in 2001 Historical Groundwater Usage for the Main Cooling Reservoir fill South Texas Project operations while preserving ad equate freshwater flow conditions 1500 for downstream bay and estuarine 1450 environments.

1400 Existing federal and state P 1350 water quality standards are imple S1300 mented and enforced through the 1250 National Pollutant Discharge Elimi nation System (NPDES) and the 1200 Texas Pollutant Discharge Elimi 1150 -- --

1996 1997 1998 1999 2000 2001 nation System (TPDES) permit Year programs to restore and maintain the nation's and state's waters. In Figure 4-2 1998, the State of Texas assumed five years in order to conserve this feet of water. Various water rights authority to administer and imple important resource. Station permits, contractual agreements ment the federal NPDES pro groundwater usage remained con and compliance documents autho gram. Accordingly, the federal and sistent with previous years. (Ref rize the South Texas Project to state requirements were consoli erence Figure 4-2) Groundwater maintain these reservoirs, impound dated in November of 2000 into usage only accounted for approxi water diverted from the Colorado one wastewater discharge permit mately two percent of the water River, and to circulate, divert and for the station under the TPDES utilized in 2001 by the South Texas use water from the reservoirs for permit program. Under this per Project. (Reference Figure 4-3) industrial purposes to operate the mit program, the South Texas Most of the water used by plant. These permits also limit the Project monitors, records and re the South Texas Project is needed rate of diversion from the Colo ports the types and quantities of to condense steam and provide rado River. The South Texas pollutants from wastewater dis cooling for plant generating sys Project diverted 62,255 acre-feet charges to ensure that we meet or tems. The majority of this water is drawn from and returned to the 2001 Water Use Sources station's Main Cooling Reservoir.

South Texas Project The Main Cooling Reservoir is a 7,000-acre, above grade, off Surface Water channel reservoir capable of im 98%

pounding 202,600 acre-feet of water at its maximum level. Res ervoir makeup water is withdrawn intermittently from the adjacent Colorado River. In addition, the Essential Cooling Pond, a 47 acre, below grade, off-channel Groundwater reservoir that supplies water to 2%

cool crucial plant components is capable of impounding 388 acre-Figure 4-3 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 EnvironmentafReort exceed the stringent levels set in South Texas Project is processed in storm water runoff. In Sep the permit. A monthly monitoring and discharged to the onsite Main tember of 1998, the United States report is submitted to the Texas Cooling Reservoir to be re-used Environmental Protection Agency Natural Resource Conservation by the station as cooling water for modified the storm water permit Commission for wastewater dis plant systems. No water was re program to require facilities, such charges. Reports identifying leased from the reservoir in 2001. as the South Texas Project, per ground and surface water use are The station continued its outstand mitted under the baseline general also submitted to the Texas Natu ing wastewater discharge compli permit to obtain permit coverage ral Resource Conservation Com ance performance record in 2001. under a multi-sector general storm mission and Texas Water Devel Wastewater discharges met state water permit. Accordingly, the opment Board. and federal water quality standards station filed a Notice of Intent for The South Texas Project un demonstrating a 100 percent com transfer from the General Permit derstands that the water resources pliance record for the year while to the Multi-Sector General Per of the state are a critical natural conserving and maximizing efficient mit with the United States Envi-

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M777'7ý G, resource requiring careful manage water usage at the station. ronmental Protection Agency in ment and conservation to preserve In addition to the wastewa 1998. The Texas Natural Re water quality and availability. Ac ter discharge permit programs dis source Conservation Commission cordingly, the station in 1998 cussed above, the Federal Clean issued a TPDES Multi-Sector joined efforts with other organi Water Act, as amended in 1987, General Pen-nit in August of 2001.

zations-including the Colorado requires permits for storm water The station filed a Notice of In River Basin regional water plan discharges associated with indus tent in November of 2001 to ob ning group and the Lower Colo trial activity. The South Texas tain coverage under the state per rado River Valley Federation Project Storm Water Pollution mit and the station's Storm Water that also seek to achieve these Prevention Plan, implemented Pollution Prevention Plan was goals. The South Texas Project since October of 1993, ensures modified accordingly to reflect continues to explore and support that potential pollution sources at these changes. This plan is a efforts focusing on the efficient use the site are evaluated, and that ap working document that is revised of water resources and reduction propriate measures are selected whenever there is a change in de of water waste. and implemented to prevent or sign, construction, operation or Wastewater generated at the control the discharge ofpollutants maintenance that has a significant SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

Non-Radhofogicaf Environmentaf Oyerating Reyort a significant contributor to the preservation of our community's clean air resources. The South Texas Project uses small amounts of fossil fuel for backup and emer gency equipment. The major regulated air emission sources at the South Texas Project include one fossil-fueled boiler and vari ous emergency diesel generators.

The South Texas Project has one oil-fired auxiliary steam boiler available to furnish steam when it is not available from the nuclear steam supply system. In addition effect on the potential for the dis _ IR QUALITY to the auxiliary steam boiler, a charge of pollutants from the S tANAGEMENT number of fossil-fueled diesel gen station. Ali & ission sources at the erators are located onsite. These Following a severe drought in South Texas Project fall under the diesels are designed to provide 1996, the Texas Legislature scope of air pollution regulations emergency power to various plant recognized the need to address promulgated under the Texas systems or buildings in the event a wide range of state water re Clean Air Act and the Federal of a loss of power. This equip source management issues. In Clean Air Act and the numerous ment is not normally needed for 1997, the Texas Senate drafted associated amendments. The pur daily operations and the station legislation known as Senate Bill 1 pose of these regulations is to pro does not use it to produce elec to address these issues and to tect air resources from pollution tricity for distribution. Routine develop a comprehensive state by controlling or abating air pol maintenance runs are made to water policy. Towards this end, lution and emissions. Regulated ensure availability if needed this legislation required that the emission sources at the South and for equipment mainte Texas Water Development Board Texas Project include fossil-fuel nance.

create a statewide water plan that boilers and emergency diesel gen V Fire-Fighting Activities emphasizes regional planning. Six erators, fire-fighting training and The South Texas Project teen planning regions were cre other minor maintenance activities. conducts onsite training of se ated, each tasked to prepare a V Fossil-Fueled lected employees on proper regional plan for the orderly de Emission Sources fire-fighting techniques. Most velopment, management and con Unlike conventional electri onsite instruction consists of servation of water resources. cal generating stations, nuclear training on the proper use of a These plans are to be incorpo power plants do not burn petro fire extinguisher. Advance no rated into a State Water Plan in leum fuel. Therefore, the South tification of firefighting training the year 2002. The South Texas Texas Project produces virtually sessions is provided to the Project was chosen to represent no greenhouse gases or other air Matagorda County Environ the electric generating utility pollutants that are the typical mental Services and the Texas interest for the water-planning by-products of industrial pro Natural Resource Conservation region that encompasses the duction processes. The use of Commission as required by Colorado River Basin. emissions-free nuclear power is state regulation.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

V Title V Federal that wastes are properly Natural Resource Conservation Operating Permit dispositioned in accordance with Commission regulations require In 1990, amendments to the applicable federal, state and local that industrial solid wastes gener Federal Clean Air Act mandated environmental and health regula ated at the South Texas Project a new permitting program to tions. By regulatory definition, be identified to the Commission clearly define applicable air qual solid waste includes solid, semi and these are listed in the Texas ity requirements for affected facili solid, liquid and gaseous waste Natural Resource Conservation ties such as the South Texas material. The Texas Natural Re Commission Notice of Registra Project. This progmm iscommonly source Conservation Commis tion for the South Texas Project.

known as the Title V Operating sion, which administers the Texas The registration is revised when Permit Program and is adminis Solid Waste Disposal Act and also ever there is a change in waste tered by the state. The Texas the federal Resource Conserva management practices at the site.

Natural Resource Conservation tion and Recovery Act program, Waste handling and disposal ac Commission issued a Federal is the primary agency regulating tivities are summarized and docu Operating Permit in January of non-radioactive wastes generated mented in a waste summary re 2000 for the South Texas Project at the South Texas Project. The port for the South Texas Project granting authority to operate iden Texas Natural Resource Conser that is submitted annually to the tified emission units at the station vation Commission also regulates Texas Natural Resource Conser in accordance with applicable per the collection, handling, storage vation Commission.

mit and regulatory requirements. and disposal of solid wastes, in Hazardous waste accumula In accordance with the South cluding hazardous wastes. The tion at the South Texas Project is Texas Project's Federal Operat transportation of waste materials limited to amaximum holding pe ing Permit's reporting require is regulated by the United States niod of 90 days. The Resource ments, the station reported two Department of Transportation. Conservation and Recovery Act minor deviations that occurred in The South Texas Project is and Texas Solid Waste Disposal 2001. In October of 2001, a tem registered with the Texas Natural Act also require the use of proper porary instrument malfunction oc Resource Conservation Commis storage and shipping containers, curred during operation of the sion as a large quantity generator labels, manifests, reports, person station's Auxiliary Boiler. The of industrial solid wastes, includ nel training, a spill control plan and condition was promptly corrected ing hazardous wastes. Texas an accident contingency plan.

and no emission limits were ex ceeded. The second deviation 2001 Nonradioactive Waste Management occurred in November 2001 South Texas Project when fire extinguisher training for firewatch personnel was inadvert Recycle ently conducted on a day not iden 74.3%

tified in the station's open bum notification to the Matagorda Coun~ihnvironmental Services.

4-RADIOACTIVE "4

44MANAGEMENT waste management lincnieratio. & Landfill procedures for hazardous and Fuel Blending 18.3%

7.4%

non-hazardous wastes generated at the South Texas Project ensure Figure 4-4 c-b SOUTH TEXAS PROJECT ELECTRIC GENERATINE STATION 4

Non-Radaofogicaf Environmentaf Oyerating Reyort Hazardous Waste Generation Historical Comparison South Texas Project 70 60 50 S40 10-)__

0 1996 1997 1998 1999 2000 2001 El Hazardous Waste from Cleanup of an Onsite Spill El Hazardous Waste Figure 4-5 Plant personnel routinely inspect dor for re-processing. Lead-acid panded or initiated.

areas throughout the site to ensure batteries are returned, when pos Non-radioactive solid waste wastes are not stored or accumu sible, to the original manufacturer that cannot be shipped for recy lated inappropriately. for recycling or are shipped to a cling is shipped for disposal.

Station policies and regula registered battery recycler, thereby Municipal-type trash is trans tions encourage the recycling, re reducing the volume of hazardous ported to the county landfill trans covery or re-use of waste when waste that might otherwise be gen fer station for appropriate dispo possible to reduce the amount of erated. An extensive site paper sition. Construction-related non waste generated or disposed of in recycling program results in the combustible, inert debris, if gen landfills. Approximately 74 per collection of several tons of pa erated, is placed in the onsite cent of the non-radioactive waste per each year. In 2001, the sta landfill. Waste minimization and generated at the South Texas tion collected approximately 58 source reduction efforts by em Project was recycled or pro tons of paper for recycling. Ev ployees allowed the South Texas cessed for re-use in 2001. The ery ton of paper recycled saves Project to achieve approximately South Texas Project ships waste approximately 17 trees, eliminates a 27 percent reduction in normal oil, grease, electrohydraulic fluid, approximately three cubic yards hazardous waste generated at the sealants, adhesives, liquid paint of landfill material and saves site during 2001 (Reference Fig and solvent for fuel blending and enough energy to power the av ure 4-5). The volume of hazard thermal energy recovery. Used erage home for six months. The ous waste generated at the station oil, diesel fuels and antifreeze so station continues to explore new is sufficiently low to allow the sta lutions are sent to a recycling ven- areas where recycling may be ex- tion to seek re-classification as a SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 Nonradioactive Waste Generation South Texas Project Non-Hazardous Waste 94.3%

Universal Waste Hazardous Waste 1.0%

2.4%

Used Batteries 2.3%

Figure 4-6 small-quantity generator (Refer CAL CONTROL The South Texas Project em ence Figure 4-6). This option will N AGEMENT phasizes awareness training for be farther evaluated in the follow The South Texas Project spill prevention and maintains sta ing year. The station faces spe uses standard operating proce tion readiness to respond should cial challenges during 2002 due to dures, policies and programs to a spill occur. Spill response team planned maintenance and the re mnimize the generation ofwaste members receive annual refresher placement of steam generators in materials, control chemical usage training in hazardous material inci Unit 2. The station, however, is and prevent spills. dent response. No significant or cn prepared to provide the needed The South Texas Project also sequential spills occurredin 2001.

focus and attention to continue to evaluates chemicals and products achieve station goals and expec proposed for use, which could tations in minimizing non-radioac come in contact with plant com five waste generation and reduc ponents. Site procedures ad ing sources of hazardous waste. dress the evaluation, storage, use, Hazardous waste accounts for spill control, and disposal re only a small portion of the waste quirements of chemicals. These generated at the South Texas guidelines assist in reducing Project; however, minimization wastes, ensure proper packag and reduction of hazardous waste ing for disposal and mitigate the generation where feasible remains consequences of inadvertent an important goal at the station. spillage.

Non-Radaofogicaf Environmentaf Oyerating Reyort A Environmental Protection Plan Status pact appraisals, or in any agencies other than the Nuclear U.. . Environmental Protection decisions of the Atomic Regulatory Commission are Plan he was issued South Texas in Project's March Safety and Licensing Board; reported in accordance with of 1989 to provide for the or, the applicable reporting re protection of non-radiological A significant change in efflu quirements. The Nuclear Regu environmental values during ents or power level; or, latory Commission is provided operation of the South Texas A matter not previously re with a copy of any such report Project. This section reviews viewed and evaluated in the at the time it is submitted to Environmental Protection Plan documents specified in (1) the cognizant agency. If a non non-compliances identified by above, that may have a signifi routine event occurs and a the plant in 2001 and the associ cant adverse environmental report is not required by an ated corrective actions taken to impact. other agency, then a 30-day prevent their recurrence. Po report to the Nuclear Regulatory tential nonconformities are No unreviewed environ Commission is required by the promptly addressed, as iden mental questions were identified Environmental Protection Plan.

tified, to maintain operations in in 2001. No such 30-day or other non an environmentally acceptable Events that require re routine report of this type was manner. The station uses its ports to federal, state or local required in 2001. V Corrective Action Program to document these conditions and track corrective actions to completion. Internal assess ments, reviews and inspections are also used to document plant compliance.

This section also reviews non-routine reports submitted by plant personnel and any activities that involved a po tentially significant unreviewed environmental question. A pro posed change, test or experiment is considered to present an unreviewed environmental questions if it concerns:

7I A matter that may result in a significant increase in any adverse environmental im pact previously evaluated in the Final Environmental Statement related to the Operation of South Texas Project, Units 1 and 2 (Docket Nos. 50-498 and 50-499), environmental im-SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

'C t-)

I.-

I -Sm Ra4aeo 6wtranmen (at

'2ntzodacr&m and Sccnnta4

Radiofo icaf EnvironmentafIntroduction and Summary here were three items of interest identified by this program during 2001. A short description of them follows.

7 Cobalt-60 levels in reservoir bottom sediment samples vary but remain within the expected range. The amount of Cobalt 60 in the Main Cooling Res ervoir has decreased because of additional equipment in stalled to reduce radioactive effluents.

V Low level tritium was moni tored in shallow aquifer ground water samples. The of the South Texas Project. 360 millirems average annual ra shallow well was located Iodine- 13 1 is routinely used diation exposure to people in the within approximately seventy for geological and medical United States from natural and five yards of the Main Cool procedures. medical sources.

ing Reservoir dike base. The Operation of the South Texas concentration increased dur Project continues to have no de ing the year, as anticipated, but tectable radiological impact offsite.

remained less than in the Main Samples analyzed from the off-site Cooling Reservoir. sampling stations continue to show V Iodine- 131 was identified in no radiological contribution from the indicator and the control plant operation. The radiological The purpose of the Radiologi station on the Colorado River. doses received by the general cal Environmental Monitoring This means that the Iodine public from plant operations were Program is to verify that the 131 was added to the river less than one millirem which is in South Texas Project is oper prior to reaching the environs significant when compared to the ating within its design param eters and to assure that plant effluents do not result in a sig nificant radiological dose to individuals off-site. This ob jective is accomplished by thoroughly evaluating known and predictable relationships between the plant and the en vironment, and performing additional evaluations where unique relationships may exist.

Approximately 900 analyses of air, water, sediment, veg etation and meat samples were performed during 2001.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

Ra4dvzme OAeuWsqý ReAftr

Radtofogicaf Environmentaf Oyerating Reyort

XPROGRAM meteorology, Colorado River hy tration ofradionuclides and direct DESCRIPTION drology, local demography and radiation exposure at indicator sta The South Texas Project ini land use. Sampling locations are tions are evaluated in relation to tiated a comprehensive pre-op further evaluated and modified historical data and against the con erational Radiological Environ according to field and analysis ex trol stations. Indicator stations are mental Monitoring Program in July perience. Table 1 lists the mini compared with characteristics iden 1985. That program terminated mum sampling locations and fire tified during the pre-operational on March 7, 1988, when the op quency of collection. program to monitor for radiologi erational program was imple Sampling locations consist of cal effects from plant operation.

mented. The pre-operational indicator and control stations. In Several sample identification monitoring program data forms the dicator stations are locations on methods are used to implement baseline against which operational or off the site that may be influ the program. Figures 6-1 and 6 changes are measured. enced by plant discharges during 2 are maps that identify perma Critical pathway analysis re plant operation. Control stations nent sample stations. Descriptions quires that samples be taken from are located beyond the measur of sample stations shown on Fig water, air, and land environments. able influence of the South Texas ure 6-1 and 6-2 are found in Table These samples are obtained to Project or any other nuclear facil 2. Table 2 also includes additional evaluate potential radiation expo ity. Although most samples ana sampling locations and media sure. Sample types are based on lyzed are accompanied by a con types that may be used for addi established pathways and experi trol sample, it should be noted that tional information. Figure 6-3 il ence gained at other nuclear fa this practice is not always possible lustrates the zones used when col cilities. Sample locations were or meaningful with all sample lection locations are not perma determined after considering site types. Fluctuations in the concen- nent sample stations.

SOUTH TEXAS PROJECT ELECTRIC SENERATING STATION

J 4

Designated Sample Locations e

E-OI4.DW0 Figure6-1

I 1

J1 *.I J Designated Sample Locations (On Site Sample Locations)

ON SITE SAMPLE LOCATIONS 2X SCALE Figure 6-2 i,

S Zone Location Map The zone station number is determined in the following manner.

" The first character of the station number is 'Z' to identify it as a zone station

" The second character is the direction coordinate numbers 1-8

" The third character is the distance from Figure 6-3 site numbers 1-6.

SOUTH TEXAS PROJECT ELECTRIC OENcRATING STATION

,2

1k- I I'1 i 11, .f- -1 5n TRENDS YSLSOF RESULTS En onmental samples from 22 Environmental Dosimeter Comparisons areas surrounding the South Texas 6 Project continue to indicate no sig 20 a

nificant radiological effects from a plant operation. Analytical values I from offsite indicator sample sta 16 tions continue to trend with the o 4 control stations. Onsite indicator samples continued to increase or IS decrease in measured values at #1 Thn.uty 03)O8/R2 Thit#2 Cn,Uty 03112)89 their expected rates. i Average quarterly beta activ Results by Quarter ity from three onsite indicator sta Figure 6-5 tions and a single control station based on the prevailing wind di thermoluminescent dosimeters lo for air particulate samples have rection. The beta activity mea cated at 43 sites around the South been compared historically from sured in the air particulate samples Texas Project. The natural direct 1988 through 2001 (see Figure is from natural radioactive mate gamma radiation varies according 6-4). The average of the onsite rial. As a routine part ofthe pro to location because of differences indicators trends closely with the gram, we perform gamuma analy in the natural radioactive materi offsite control values. The com sis on quarterly composites of the als in the soil, its moisture content parison illustrates that plant opera air particulate samples to deter and the vegetation cover. Figure tions are not having an impact on mine if any activity is from the 6-5 compares the amount of di air particulate activity even at the South Texas Project. The gamma rect gamma radiation measured at Sensitive Indicator Stations (#1, analysis revealed that it was all the plant since the fourth quarter

15, and#16). These stations are natural radioactivity. of 1985 for three different types located near the plant and are lo Direct gamma radiation is of stations. The Control Stations cated downwind from the plant monitored in the environment by are greater than 10 miles from the site and are in the direction of the Historical Comparison of Average Quarterly Beta least prevailing winds (Stations Activity from Indicator and Control Air Samples 1988 - 2001 #23 and #37). The Sensitive In dicator Stations are in the direc 0035 tions that the wind blows most often and are one mile from the power plants on Farm-to-Market Road 521 (Stations #1, #15 and

16). The Indicator Stations are

.- I the remainder of the stations ex cluding stations 38, 40 and 42.

The values plotted are the aver ages for all of the stations accord

[8s2 989 I' 1990 l I992 I'l 1993 9' 4 5 1996 097 199S 1999 2.00 2Il 1

ing to type. Figure 6-5 indicates changing conditions in the area of Figure 6-4 the individual stations. The aver-W SnUTH TEXAS PRDJCT ELECTRIC SENERA.EINc STATIN

S' Historical Comparison of Cobalt58 & Cobalt-60 in probably not the source of Ce Main Cooling Reservoir Sediment 1986 - 2001 sium-137 in these samples. The Cesium-137 measured in the Main Cooling Reservoir does not 1400 suggest an increase due to plant I 001Lt C~huIt-5R FIt.l~*i

ea operation.

I t:* c H

/4 a ........ A trace of Iodine-131 was measured in the Colorado River both upstream and downstream from the South Texas Project over

.,lrc~~ly~lCml a two-week period. Since Iodine 131 is a commonly used radio pharmaceutical, the source was likely a municipal sewage treat Figure 6-6 ment facility upstream from the age of the Control Stations is sured in one of two Main Cooling South Texas Project. The factthat higher than the other stations be Reservoir bottom sediment one of the three positive samples cause station #23 is in an area that samples and in two of three indi was taken above the Bay City has a slightly higher natural back cator shoreline sediment samples dam, fourteen miles upstream of ground radiation, probably due to on the Colorado River. However, the South Texas Project, strength the soil composition. The trends Cesium-137 was present in the ens this conclusion.

of Figure 6-5 clearly show that the environment before the operation Tritium is a radioactive iso power plants are not adding to the of the South Texas Project and the tope of hydrogen and is produced direct radiation rnthe environment. sample concentrations were ap during plant operation. Tritium Bottom sediment samples are proximately equal to pre-opera produced in the reactors is a part taken from the Main Cooling Res tional values. No other isotopes of the water molecule. Wastewa ervoir each year. Figure 6-6 released from the plant were iden ter is treated to remove impurities shows the positive results from tified in the shoreline samples, before release, but tritium cannot two plant-produced radioactive which indicates that the plant was be removed because it is chemi-materials, Cobalt-58 and Cobalt

60. The Cobalt-58 and Cobalt Calculated Cumulative Curies of Cobalt-60 in the 60 inventory in the reservoir has Main Cooling Reservoir decreased since 1992 because of equipment installed to reduce ra dioactive effluents. The amount of Cobalt-58 has decreased be low levels that can be reliably de =

tected. The concentration of Co balt-60 in the reservoir bottom sediment samples varies but is within the expected range. Fig otw 200 ure 6-7 demonstrates the decline ASS -M ,IONS: "

R*,o*llv *cys,Sbe ofiy meltanisni Ibr emoyw ftc. ,,heM,, C.,oling e,*e~ir in the total amount of Cobalt-60 in the reservoir.

Cesium-137 was also mea- Figure 6-7 SOUTH TEXAS PROJECT ELECTRIC GENERATIN STATION

j, -I cally part of the water molecule. changed very little in 2001 as ex concentration should continue to Some ofthe tritium is released into pected. Tritium enters the sloughs rise if it follows the trends ob the atmosphere and the remain and ditches of the site as runoff served in other relief wells.

der is released into the Main Cool from the relief wells that surround The drinking water onsite is ing Reservoir. The tritiunm escapes the reservoir. The tritium concen pumped from deep aquifer wells from the Main Cooling Reservoir tration in eight surface water and is tested quarterly to verify by evaporation and by percola sample points for 1988 through tritium is not present. The waters tion from the reliefwells that are a 2001 is shown in Figure 6-9. The in the reservoir and other surface part of the dike's stabilization sys specific sample point locations can bodies of water onsite are not tem. Figure 6-8 shows the be found in Table 2. Tritium levels used as drinking water. The only amount of tritium released to the in the onsite sloughs and ditches way tritium could be introduced Main Cooling Reservoir each have increased and are expected into humans is by eating fish from year and the amount present dur to continue increasing until they are the reservoir, which is not permit ing the last quarter of each year. near equilibrium with reservoir lev ted. If a person ate forty pounds This indicates that almost half of els. The tritium concentration has of fish a year from water that con the tritium is removed from the increased in the sloughs and tained the United States Nuclear reservoir annually. The majority ditches through 2001 because it Regulatory Commission reporting of the tritium escapes from the takes several years for water to level (30,000 picoCuries per ki reservoir by evaporation because move from the reservoir to the logram), that personwould receive the flow from the relief wells is in reliefwells. less than one millirem. This is in sufficient to account for the titium Tritium was identified in a significant compared to the almost removed. Rainwater was col shallow (ten to thirty feet deep) twenty millirem a year everyone lected during 1992, 1993, 1994, aquifer test well approximately receives from naturally occurring 2000 and 2001 to determine if the seventy-five yards south of the radioactive potassium in the body.

tritium remained in the local area. reservoir dike base during 1999. The current reservoir concentra Tritium was not found in any rain In 2001, the concentration con tion is less than 1/3 the reporting water samples. tinued to increase in this well and level.

The concentration oftritum in reached about 1/3 the concentra Some samples are collected the Main Cooling Reservoir tion oftithml in the reservoir. The and analyzed in addition to those required by our licensing docu ments or internal procedures.

These samples are obtained to give additional assurance that the public and the environment are protected from any adverse ef fects from the plant. These samples include wildlife, pasture grass, rain water, water samples from various ditches and sloughs onsite, and air samples near com munities or other areas of inter est. The results ofthese analyses indicate that there is no detectable radiological effect on the environ Figure 6-8 ment by plant operation.

0ýSOUTH TEXAS PROJECT ELECTRIC GENERATING STATION A

WPM Historical Comparison of Tritium Activity in Surface Water 1988-2001 30,ooo pk ne pe!Kio, . Nidlei, R~g*l.tey C~mi*oai *rC*ng TA*e A

25000

'UC.

I 9I31o9o

.1 1996 a River S-ampl Upsteam of Plant (OflUite) RQ02 *River Sample Dovosream of plant (Offite) #QOI

West Branch of ver (onsite) #213 iUffleRobbins Slough (Onsite) #212

East Branch ofLittle robbins Slougrh Cosite) #211 Ditch NE ofMain Cooling Reservoir (Onsite) #229 SMain Cooling Reservoir Blowdown (Onsite) #237

Mat Cooling Reseiwoir (Onsioe) #216 Figure 6-9

,"n USE CENSUS whether any changes are needed In addition, a survey is

' nualLand Use Cen in the Radiological Environmental performed to verify the nearest sus is perormed to determine Monitoring Program. The census residents within five miles ofthe if any changes have occurred is performed by contacting area South Texas Project generating in the location of residents and residents and local government units in each of 16 sectors. The the use of the land within five agencies that provide the informa nine sectors that have residents miles of the South Texas tion. The results of the survey in within five miles and the distance Project generating units. The dicated that no changes were re to the nearest residence in each nffornation is used to determine quired. sector are listed below.

Sector Distance Location (approx. miles)

ESE 3.5 Selkirk Island "SE 3.5 Selkirk Island SW 4.5 Citrus Grove WSW 2.5 FM 521 W 4.5 FM 1095*

WNW 4.0 A~hby-Bnckeyo Road NW 4.5 Mondrik Road NNW 3.5 Runnells Ranch (FM 468)

N 3.5 Runnells Ranch( FM 1468)

SOUTH TEXAS PROJECT ELECTRIC GrNERATIG STAT.IO

'S J

S .3 J' O' The following items of inter Quality V The South Texas Project est were noted during the census V Periodic surveillances ofspecific participates in an inter-util V A l10-acre wetland prairie acvities oign theyear ity measurement assurance project continues to provide V Comprehensive audits are program.

a habitat for migratory birds performed. V Environmental media blind and waterfowl. The habitat is Laboratory Quality Assurance samples are measured.

located northeast of the Program. The South Texas Project is pe power plants and is easily ac "V Routine instrument control riodically reviewed by outside cessible to the public. checks, including calibrations organizations or agencies, in V Colorado River water from and calibration verification, cluding the United States below the Bay City Dam has were conducted. Nuclear Regulatory Commis not been used to irrigate crops. "V Analysts' abilities are tested sion, American Nuclear Insur V No commercial dairy oper annually. ers, etc.

ates in Matagorda County "V Intra-laboratory quality control V The programmatic content and there isno agiiculturil milk analysesofsanplesareprtbrimed and effectiveness of the Ra sounce within the five-mile zone. "V Quality control activities are diological Environmental V There were no identified self-assessed. Monitoring Program is re commecial vegetable fmns lo Inter-laboratory Measurement viewed to assure license com catedwithin the five-mile zone. Assurance Programs are con pliance and to gauge the de V A commercial fish farm con ducted to ensure consistency gree of compliance with se tinues to operate 2 miles west with the rest of the industry. lect operational guidelines.

a plant Qe near FM 521 "V The South Texas Project par ticipates in the Nuclear En Reviews, suveillan* and audits SSURANCE ergyInstitute/NationalInstitute have determined that the programs, a ity assurance encom of Standards and Technology procedures and personnel are ad passes planned and systematic Measurement Assurance Pro equate and perform satisfactorily.

actions to ensure that an item or gran for the Nuclear Industry. Quality audits and indepen facility will perform satisfactorily. "V We also participate in the dent technical reviews help to de Quality assurance for the Radio Battelle Pacific Northwest termine areas that need attention logical Laboratory is measured and Laboratories' Measurement and re-evaluation. Areas that need assessed by four distinct methods. Assurance Program. attention are addressed in accor dance with the station's Correc 2001 Radiological Laboratory Quality Assurance Program Performance five Action Program.

The measurement capabilities ofthe Radiological Laboratory are demonstrated by participating in inter-laboratory measurement as surance programs. These pro grams provide samples that are similar in matrix and size to those measured for the Radiological 1.1.% Difference EnvirowmetalMonitaingProgram Figure 6-10 summarizes the 78 Total Analyses results of these inter-comparison Figure 6-10 programs. Analyses consisted of i SOUTH TEXAS PROJECT ELECTRIC GENERATINS STATION

2001 EnvironmentafReyort knowledged and explained in this report. During 2001, the following samples were not collected or were unaccept able for analysis:

V Seven out of 260 weekly air samples did not meet the minimum detection require ments because equipment failure prevented the col lection of sufficient sample.

V Five out of thirty-six re quired broadleaf vegetation samples were not collected due to seasonal unavailabil radiochemical measurements and quirements at the lower level of ity (January and February).

measurement of direct radiation detection for environmental The minimum Radiological through the use ofthermolumines samples. These stringent re Environmental Monitoring Pro cent dosimeters. In addition, ap quirements were met in all gram is presented in Table 1. The proximately twenty percent of the samples taken in 2001 except as table is organized by exposure analyses made are quality control described in the following para pathway. Specific requirements samples that consist of duplicate, graj like location, sampling method, split and blind samples. 4M DEVIATIONS collection frequency, and Radiochemical measure Dvi*ations from the sam analyses are given for each ments must meet sensitivity re- pling program must be ac- pathway. y iii 7i2> 7 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

Radofoglicaf Environ*entaf Oyerating Reyort The minimum Radiological Environmental Monitoring Program is presented in Table 1. The table is organized by exposure pathway. Specific requirements like location, sampling method, collection frequency and analyses are given for each pathway.

Table 1 Radiological Environmental Monitoring Program EXPOSURE: DIRECT RADIATION 40 TOTAL SAMPLING STATIONS Sample Media, Number, Approximate Location and Distance of Routine Sampling Sampling and Analysis Minimum Sample Stations from Containment. Mode Collection Type Analysis

[Frequency Frequency Exposure Media: TLD 16- Located in all 16 meteorological sectors, 0.2* to 4 miles. Continuously Quarterly Gamma dose Quarterly 16- Located in all 16 meteorological sectors, 2 to 7 miles.

6 Located in special interest areas (e.g. school, population centers), within 14 miles.

2- Control stations located in areas of minimal wind direction (WSWENE), 10-16 miles.

The inner ring of stations in the southern sectors are located within 1 mile because of the main cooling reservoir EXPOSURE: AIRBORNE 5 TOTAL SAMPLING STATIONS Sample Media, Number, Approximate Location, and Distance of Routine Sampling Nominal Analysis Minimum Sample Stations from Containment. Mode Collection Type Analysis Frequency Frequency Charcoal and Particulate Filters 3 Located at the exclusion zone, N, NNW, NW Sectors, 1 mile. Continuous Weekly or Radioiodine Weekly sampler more Canister.

1- Located in Bay City, 14 miles. operations frequently if 1-131 1- Control Station, located in a minimal wind direction (WSW), required by Particulate 10 miles. dust loading Sampler:

Gross Beta Following Activity filter change Gamma- Quarterly Isotopic of composite (by location)

EXPOSURE: WATERBORNE 9 TOTAL SAMPLING STATIONS Sample Media, Number And Approximate Location of Sample Routine Sampling Nominal Analysis Minimum Stations Mode Collection Type Analysis Frequency Frequency Surface 1_- Located in MCR at the MCR blowdown structure. Composite sample Monthly Gamma- Monthly Over a 1 month Isotopic 1- Located above the site on the Colorado River not influenced period (grab if by plant discharge (control), not available) Tritium Quarterly 1- Located downstream from blow down entrance into the Composite Colorado River.

Ground 1- Located at well down gradient in the shallow aquifer. Grab Quarterly Gamma- Quarterly Isotopic &

Tritium SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 EnvironmentafReport Table 1 Radiological Environmental Monitoring Program EXPOSURE: WATERBORNE (CONTINUED)

Sample Media, Number And Approximate Location of Sample Routine Sampling Nominal Analysis Minimum Stations Mode Collection Type Analysis Frequency Frequency Drinking Water Grab Monthly Gross Beta Monthly 1- Located on site.

& Gamma 1- Located at a control station. Isotopic Tritium Quarterly Sediment Composites 1- Located above the site on the Colorado River, not influenced Grab Semi-annually Gamma- Semi-annually by plant discharge. Isotopic 1_-Located downstream from blowdown entrance into the Colorado River.

1- Located in MCR.

No municipal water systems are affected by STP. This sample taken from deep aquifer supplying drinking water to employees while at work.

7 TOTAL SAMPLING STATIONS EXPOSURE: INGESTION Sample Media, Number And Approximate Location of Sample Routine Sampling Nominal Analysis Minimum Stations Mode Collection Type Analysis L Frequency Frequency Milk Grab Semi-monthly Gamma- Semi-monthly when animals Isotopic when animals are on and 1-131 are on pasture; pasture; monthly at monthly at Broadleaf Vegetation* other times. other times.

2- Located at the exclusion zone, N, NW, or NNW sectors. Grab Gamma 1- Located in a minimal wind direction. Monthly during Isotopic As collect growing season and 1-131 (When available)

Limited source of sample in vicinity of the South Texas Project- (Attempts will be made to obtain samples when available.)

Three different kinds of broadleaf vegetation are to be collected over the growing season, not each collection period EXPOSURE: INGESTION (continued)

Sample Media, Number And Approximate Location of Sample Routine Sampling Nominal Analysis Minimum Stations Mode Collection Type Analysis Frequency Frequency Fish and Invertebrates (edible portions) 1- Representing commercially or recreational important species Grab Sample semi- Gamma- As collected in vicinity of STP that maybe influenced by plant operation- annually Isotopic on edible I- Same or analogous species in area not influenced by STP. portions 1- Same or analogous species in the MCR.

Agricultural Products Grab At time of Gamma- As collected harvest Isotopic Analysis in Domestic Meat edible portion 1- Represents domestic stock fed on crops grown exclusively Grab Gamma- As collected within 10 miles of the plant. Annually Isotopic No sample stations have been identified in the vicinity of the site. Presently no agricultural land is irrigated by water into which liquid plant wastes will be discharged. Agricultural products will be considered if these conditions change.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

Radiofogicaf Environmentaf Oyerating Ryort Table 2 Sample Media and Location Descriptions AIRBORNE RADIOIODINE CABBAGE AIRBORNE PARTICULATE COLLARD GREENS RESIDENT DABBLER DUCK BEEF MEAT RESIDENT DIVER DUCK POULTRY MEAT MIGRATORY DABBLER DUCK WILD SWINE MIGRATORY DIVER DUCK DOMESTIC SWINE GOOSE EGGS DOVE GAME DEER QUAIL ALLIGATOR PIGEON RABBIT CRUSTACEAN CRAB OYSTER CRUSTACEAN SHRIMP SOIL DIRECT RADIATION SEDIMENT - SHORELINE FISH - PISCIVOROUS SEDIMENT - BOTTOM FISH - CRUSTACEAN &INSECT FEEDERS PASTURE GRASS FISH - PLANTIVORES &DETRITUS FEEDERS DRINKING WATER BANANA LEAVES GROUND WATER CANA LEAVES SURFACE WATER TURNIP GREENS RELIEF WELL WATER SOUTH TEXAS PROJECT ELECTRIC SENERATING STATION

2001 Environmentaf Reyort Table 2 Sample Media and Location Descriptions MEDIA CODE STATION VECTOR LOCATION DESCRIPTION CODE (Approximate)

DRAI AP VB VP SO 001 1 mile N FM 521 DR 002 1 mile NNE FM 521 DR 003 1 mile NE FM 521 DR 004 1 mile ENE FM 521 DR 005 1 mile E STP Visitor Center on FM 521 DR AI AP SO 006 3.5 miles ESE Site near Reservoir Makeup Pumping Facility DR 007 3.5 miles SE MCR Dike DR 008 0.25 mile SSE MCR Dike DR 009 0.25 mile S MCR Dike DR 010 0.25 mile SSW MCR Dike DR 011 0.5 mile SW MCR Dike DR 012 1.5 mile WSW MCR Dike DR 013 1.5 mile W FM 521 DR 014 1.5 mile WNW FM 521 DRAI AP VB SO VP 015 1 mile NW FM 521 DRAI AP VB SO VP 016 1 mile NNW FM 521 DR 017 6.5 miles N Buckeye - FM 1468 DR AI AP SO 018 5.5 miles NNE Celanese Plant - FM 3057 DR 019 5.5 miles NE FM 2668 DR 020 5 miles ENE FM 2668 & FM 2078 DR 021 5 miles E FM 521& FM 2668 DR 022 7 miles E Equistar Chemical Plant DR 023

16 miles ENE Intersection of FM 521 and FM 2540 MCR-STP Main Cooling Reservoir STP-South Texas Project Media codes typed in bold satisfy collection requirements described in Table I.

Control Station SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

1 1 Radrofo jicaf Environmentaf Oyerating Reyort Table 2 Sample Media and Location Descriptions MEDIA CODE STATION VECTOR LOCATION DESCRIPTION

_ __ _ CODE (Approximate)

DR 024 4 miles SSE MCR Dike DR 025 4 miles S MCR Dike DR 026 4 miles SSW MCR Dike DR 027 2.5 miles SW MCR Dike DR 028 5 miles WSW FM 1095 & Ellis Road DR SO 029 4.5 miles W FM 1095 DR 030 6 miles WNW Tres Palacios Oaks, FM 2853 DR 031 5.5 miles NW Wilson Creek Road DR 032 3.5 miles NNW FM 1468 DR Al AP SO 033 14 miles NNE Microwave Tower at end of Kilowatt Road in Bay City DR 034 7.5 miles ENE Wadsworth Water Supply Pump Station DR AI AP SO 035 8.5 miles SSE Matagorda DR 036 9 miles WSW College Port DR Al AP VB VP SO 037* 10 miles WSW Palacios CP&L Substation DR 038 10.5 miles NW CP&L Substation on TX 71 near Blessing DR Al AP 50 039 9 miles NW TX 35 under High Voltage Power lines near TieanHihSol Tidlehaven High School DR 040 4.5 miles SW Citrus Grove DR 041 2.0 miles ESE MCR Dike DR 042 8.5 miles NW FM 459 at Tidehaven Intermediate School DR 043 4.5 miles SE Site boundary at blowdown outlet WS 209 2 miles ESE Kelly Lake WD 210 On Site Approved drinking water supply from STP WS 51 211 3.5 miles S Site, E. Branch Little Robbins Slough MCR-STP Main Cooling Reservoir STP-South Texas Project Media codes typed in bold satisfy collection requirements described in Table 1.

Control Station SOUTH TEXAS PROJECT ELECTRIC SENERATING STATION

2001 EnvironmentafReyort Table 2 Sample Media and Location Descriptions MEDIA CODE STATION VECTOR LOCATION DESCRIPTION CODE (Approximate)

WS S1 212 4 miles S Little Robbins Slough WS 51 213 4 miles SE West Branch Colorado River F (1,2, or 3) CC 214 2.5 miles SE MCR at Makeup Water Discharge S2 215 0.5 mile SW MCR at Circulating Water Discharge WS S2 216 3.5 miles SSE MCR at blowdown structure F (1, 2, or 3) CC CS 222 >10 miles West Matagorda Bay OY WS S(11 or 2) 227 5-6 miles SE West bank of Colorado River downstream of STP across from channel marker #22 WD 228* 14 miles NNE Le Tulle Park public water supply Drainage ditch north of the reservoir that empties WS 51 229 2-3 miles ESE into Colorado River upstream of the reservoir makeup pumping facility Coloradomte River at point where drainage ditch S(1 or 2) 230 3.5 miles ESE (29 empties into

(#229) noi it Colorado River where t MCR blowdown discharge S(1 or 2) WS 233 4.5 miles SE canlepisit empties into it.

channel WG 235 3.8 miles S Well B-3 directly south from MCR B8 236 N/A STP Protected Area WS 237 3.7 miles SSE Blowdown discharge channel from MCR S(1 or 2) WS 242* >10 miles N Colorado River where it intersects Highway 35 Colorado River upstream of Bay City Dam at the Lower Colorado River Authority pumping station WS 247 <1 mile E Essential Cooling Pond F(1,2, or 3) 249* N/A Control sample purchased from a local retailer so 250 0.75 miles NW Sewage sludge land farming area F(1,2,or 3) CC S2 300 S STP Main Cooling Reservoir WW 701 4 miles S MCR Relief Well # 440 Quarterly composite of station #227 and/or WS Q01 N/A altermate #233 WS Q02 N/A Quarterly composite of station #243 and/or WI I NA altermate #242 MCR-STP Main Cooling Reservoir STP-South Texas Project Media codes typed in bold satisfy collection requirements described in Table I.

Control Station SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

RadaofogicafEnvironmentaf Oyerating Reyort T :2001 Radiological top left of each page, and the units vironmental Samples.) The

<tt nmental Monitoring of measurement are printed at the "LOWERLIMITOFDEFECHON' Program Analysis top right. The first column lists the column lists the measurement An analysis summary for all of type of radioactivity or specific sensitivities achieved which were the required samples is given in radionuclide for which each more sensitive than specified bythe Table 3. The table has been for sample was analyzed. The second Nuclear Regulatory Commis matted to resemble a United column gives the total number of sion.

States Nuclear Regulatory Com analyses performed and the total A set of statistical parameters mission industry standard. Modi number of non-routine analyses is listed for each radionuclide in fications have been made for the for each indicated nuclide. (A non the remaining columns. The pa sole purpose of reading ease. routine measurement is a sample rameters contain information from Only positive values are given in whose measured activity is greater the indicator locations, the location this table. than the reporting levels for Ra having the highest annual mean, Media type is printed at the dioactivity Concentrations in En- and information from the control stations. Some sample types do not have control stations. When this is the case, "no samples" is listed in the control location col umn. For each of these groups of data, the following is calculated:

77 The mean value of positive real values.

V The number of positive real measurements / the total num ber of analyses.

V The lowest and highest values for the analysis.

The data placed in the table are from the samples listed in Table 1. Additional thermolumi nescent dosimeters were utilized each quarter for quality purposes.

The minimum number of other analyses required by Table 1were supplemented in 2001 by eleven surface water samples, two ground water samples, two drinking wa ter samples, four rainwater samples, one shoreline sediment sample, and three bottom sedi ment samples. Fish, vegetation, and wildlife samples vary in num ber according to availability but also exceeded the minimum num ber required by Table 1.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 Environmentaf Report TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Direct Radiation Units: milliRoentgen/Standard Quarter TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS ANALYSIS NONROUTINE LOWER LIMIT MEAN (f0 LOCATION MEAN (f)* MEAN (0)'

TYPE MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE 174/0 - 1.5E+01 ( 166 166) 1 mile W l.9E+-01 (5 /5) 1.5E-01 ( 8, 8)

Gamma

( 1.1E 2.0E-01 ) (#013) (1.7E 01 -2.OE+01) ( 1.3E-01 - 1.8E+01)

(f) Number of positis e measurements /total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Air Iodine Units: picoCuries per Cubic Meter ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS NONROUTINE LOWER LIMIT MEAN (i* LOCATION MEAN (f0* MEAN (fl*

TYPE MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Iodine-131 254/0 8.9E-03 --- ( 0V 202) ---...... ( 0, 52)

(I) Number of positiVe measurements/ total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Airborne Particulate Units: picoCuries per Cubic Meter ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANINLUAL MEAN CONTROL LOCATIONS TYPE ,NONROUTINE LOWER LIMIT MEAN (f)* LOCATION MIEAN (f)* MEAN (0 MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Gross Beta 254A0 1.5E-03 2.4E-02(201 , 202) 1 mile N 2.5E-02 ( 46/ 46) 2.4E-02 52, 52)

(IE 6.4E-02) (#001) ( 1.3E 6.4E-02) ( I.E-02 - 6.5E-02) 20A0 2.SE-04 --- ( 0' 16) -- --- --- ( 0, 4)

Cesium-134 Cesium-137 20/0 2,5E-04 --- ( 0i 16) --- --- - 0 4)

Mlanganese-54 20/0 3.IE-04 --- ( 0/ 16) --- --- ( 0, 4)

Iron-59 20/0 1.7E-04 --- ( 0 16) -- -- --- ( 0 4)

Cobalt-58 20'0 4.5E-04 --- ( 0, 16) -- --- --- ( 0 4)

Cobalt-60 20,0 3.OE-04 --- ( 0 16) -- --- ( 0 4) 20/0 6.7E-04 --- (0, 16) --- --- ( 0 4)

Zinc-65 Zirconium-95 20/0 8.3E-04 --- ( 0i 16) -----( 0 4)

Niobium-95 20/0 8.2E-04 --- ( 0 16) --- --- ( 0 4)

Lanthanum-140 20/0 5.3E-03 --- ( 0 16) --- --- ( 0 4)

Barium-140

(f) Number of positive measurements total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

I I Radofogicaf Environmentaf Oyerating Reyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Surface Water U nits: nicfCuriesn or kni1,-crr ANALYSIS TOTAL ANALYSES INDICATOR EOC,\TIONS LOCATION WITHI IIIGHESTANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER IAMIT MI'AN (N)W LOCATION MEAN (f)N MiAN In MNILASURENMENTS OF I)ETECTION RANGE INFORMATION RANGE RANGE Hydrogen-3 12 0 2.6E+02 9.1EE+03( 4 S) 3milesSSE 9.1E03( 4 4) --- ( 0 4)

(_8.2E 9.6E+03) (#216) 8.2E 9.6+03)

Iodine-131 47 0 8.4E+00 2.3E--00( 2 30) 6 miles SE 2.7E+00 ( 1 9) 4E-00 ( 1 17)

_______ 47E0 27E-00)

-12.00 (-227) (2.7E 2.7E-00) I.4E 1.E+00) 2 Cesiurn134 40 .OE-00 --- 1 0 30) --- 0 17 Cesium-137 47, 0 1.9E-00 --- 0 30) - 0 17)

Manganese-54 47 0 I.SE+00 --- 0 30) - 0 17)

Iron-59 47,0 5.7E+00 --- 0 30) ---.--- 0--17) 2 Coball-58 47,0 .0E-00 --- 0 30) --- ( 0 171 Cobali-60 47 0 1.9E-00 --- 0 30) --- -- 0 17)

Zinc-65 47,0 3.9E-00 --- 0 30) --- - 0 17)

Zirconium-95 47'0 3.5E+00 --- 0 30) --- - 0 17)

Niobium-95 47,0 2.4E-00 --- 0 30) --- - 0 17)

Lanthanum- 140 47,0 3.5E-00 --- 0 30) --- 0 17)

Barium- 140 (f) Number of positiN e measurelments total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Rain Water I Ii -- ;,(. ; . ;I p co ur esuper aiguIui[

ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS ILOCATION WTIH ttIGHEST ANNUAL ME AN CONTROL LOCATIONS TYPEO NONROUTINE LOW ER LINIIT MEAN (1t) LOCATION MEAN (f)* %,lEAN(f*

MEASURELILENTS OF DETECTION RANGE INFORMATION RANGE RANGE Hydrogen-3 4 0 2.6E-02 - 0 4) no samples Iodine- 131 4 0 8.4E+00 --- 0 4) no samples Cesiu-m--134 4 0 2.OE-00 - 0 4) no samples Cesium-137 4 0 1.9E-00 --- 0 4) --- no samples lang'inese-4 4 0 80 00 0 )------ no samples Iron-59 4 0 5.7E-00 --- 0 4) --- no samples Cobalt 58 4 0 200-- 4---- no samples Cnbnels-6 4 0 18E-00 --- 0 4) --- no samples ZInc-65 4 0 3.9E-00 --- 0 4) ----- nosamples Zirconm9 4, 0 3.5E-00)--- no samples Niobiuma9- 4 0 2.4E+00 --- ( 0 4) --- no samples LCnlbanum-140 4 0 3.5E-00 --- 0 4) no samples Barium-140 (1) ,*umiiiier OHpositive measuremenlts, total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 Environmentaf Reyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

1iA~a,-,,.,. *.*,. \X/*s* llni-t' nir-oCuirie* ner Kilogr~am ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (f)" LOCATION MEAN (f)* MEAN (f)*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Hydrogen-3 6/0 2.6E+02 1.9E+03 ( 6/ 6) 3.8 miles S I.9E+03 ( 6 / 6) no samples 1.2E+'03 - 3.6E+03) (#235) ( 1.2E+03 - 3.6E+03 )

Iodine-131 6/0 8.4E+00 --- ( 0/ 6) --- no samples Cesium-134 6/0 2.0E+00 --- ( 0 6) --- no samples Cesium-137 6!"0 1.9E+00 --- ( 0 6) --- no samples Manganese-54 6/0 1.8E+00 --- ( 0 6) --- no samples Iron-59 6/0 5.7E+00 --- / 6) f0 ...... no samples Cobalt-58 6/0 2.OE+00 --- ( 0 6) --- no samples Cobalt-60 6/0 1.9E+00 --- ( 0 6) --- no samples Zinc-65 6/0 3.9E+00 --- ( 0 6) --- -- no samples Zirconium-95 6/0 3.5E+00 --- ( 0 6) --- --- no samples Niobium-95 6/0 2.4E+00 --- ( 0/ 6) --- --- no samples Lanthanum-140 6/0 3.5E+00 --- ( 0/ 6) --- no samples Barium-140

(f) Number of positive measurements total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Drinking Water Units: picoCuries per Kilogram ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE INONROUTINE LOWER LIMIT MEAN (f)' LOCATION MEAN (f)* MEAN (f)*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Gross Beta 26/0 1.2E+00 3.1E+00 ( 7/ 14) 14 miles NTNE 3.5E+00 ( 11/ 12) 3.5E+00 ( 11 / 12)

(_1.9E+00 - 4.2E+00) (#228) (2.4E+00 - 4.8E+00 (2.4E+00 - 4.8E+00)

Hydro gen -3 8 /0 2.6 E +02 --- ( 0 ' 4 ) .... ... ( 0 / 4)

Iodine-131 26/0 5.4E-+00 --- ( 0/ 14) --- --- -- ( 0/ 12)

Cesium-134 26/0 2.OE+00 --- ( 0/ 14) ---.- --- ( 0/ 12)

Cesium-137 26/0 1.9E+00 --- ( 0/ 14) --- ( 0- 12)

Manganese-54 26/0 1.8E+00 --- ( 0/ 14) --- --- - 0/ 12)

Iron-59 26/0 5.7E+00 --- ( 0 / 14) --- ( 0 / 12)

Cobalt-58 26/0 2.OE+00 --- ( 0/ 14) .......-- ( 0/ 12)

Cobalt-60 26/0 1.9E+00 --- ( 0/ 14) --- --- -- ( 0 12)

Zinc-65 26/0 3.9E+00 --- ( 0/ 14) ---.-- -- ( 0/ 12)

Zirconium-95 26/0 3.5E+00 --- ( 0 14) ---.--- ( 0/ 12)

Niobium-95 26/0 2.4E+00 --- ( 0 14) --- --- --- ( 0/ 12)

Lanthanum-140 26/0 3.5E-00 ( 0 14) ........ ( 0/ 12)

Baninm140

ýt) unt er o pos , ve measuremen s to a measuremen s a spec e oca ons.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

t aj Raaqofogicaf Environmentaf Oyerating Reyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Sediment-Shoreline I busnitmrifnluijej nor Wiln-oram Hex wxioht ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MIEAN (f* LOCATION \IEAN (fV MEAN (t)*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 510 2.5E+01 --- 0( 3) ......... ( 0, 2)

Cesium-137 50 2.OE+01 3.5E-0I ( 2 3) 6 miles SE 3.5E-01 ( 2 3) 2.8E+01 ( 2, 2)

(3.2E-01 -3.SE-01 ) _(227) 3.2E 3.E+01)I 2.2E 3.4E+0I)

Manganese-54 5 1.5E-01 --- 0 3) ...---. ( 0, 2)

Iron-59 5,0 8. IE-01 --- 0 3) ---....-- 0 2)

Cobalt-58 5,'0 2.3E-01 --- 0 3) ---.....- 0 2)

Cobalt-60 5'0 1.3E-01 - 0 3 --- ( 0 2)

Zinc-65 5/0 4.9E-01 --- ( 0 3) ---..-- -- 0, 2)

Zirconium-95 5,'0 5.OE-01 --- 0 3) ---.. --- V0,21 Niobium-95 5/0 4.6E-01 --- 0 3) ---...--- ( 0 2)

Lanthanum-140 5,0 1.9E-02 --- 0 3) ---.....- 0 2)

Barium- 140

(f)Number of positive measurements total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Sediment-Bottom [Units: nicoCuries noer Kiiogram dry weioht ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION Wk`ITH HIGHEST ANNUAL \IEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (fn* LOCATION MEAN (0* MEAN (f)*

\MEASURENIENTS OF DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 5;0 2.5E+01 --- ( 0"5 --- -- no samples Cesium-137 5,0 2.OF-01 1.1E-02 ( 1 5) 3 miles SSE 1.1E-02 ( 1 , 2) no samples

1. 1E+02 - 1.1E 02) (;216) ( 1.)E 1.1E-02 Manganese-54 5/0 1.5E-01 --- 0, 5) no samples Iron-59 5,'0 8.IE-01 --- ( 0, 5) ---... no samples Cobalt-58 5A0 2.3E-01 --- 0, 5) -- --- no samples Cobalt-60 50 1.3E-01 4.2E+01 ( 2), 5) 3 miles SSE 4.2E+01 (2 2) no samples S1.5E+01 - 6.9E-01 ) (1216) (1.5 E+ 1- 6.9E-01 )

Zinc-65 5,'0 4.9E-01 --- 0 5)---... no samples Zirconium-95 5/0 5.OE+01 --- 0 , 5) --- no samples Niobium-95 5/0 4.6E+01 --- ( 0, 5) --.--- no samples Lanthanum-140 5/0 1.9E+02 --- 0 5) -- --- no samples Barium-140

() Number of positie measurements," total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC SENERATING STATION

2001 EnvironmentafReyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Banana Leaves Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LOWER LIMIT MEAN (0)* LOCATION MEAN (0)* MEAN (1*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Iodine-131 20/0 7.7E+00 --- ( 0/ 13) ---...--- ( 0/ 7)

Cesium-134 20/0 2.OE+00 --- ( 0/ 13) ........- ( 0V 7)

Cesium-137 20/0 1.7E 00 --- ( 0/ 13) ---.--- -- ( 0/ 7)

Manganese-54 20/0 .9E+00 ( 0! 13) --. (0 7)

Iron-59 20/0 8.0E 00 --- ( 0/ 13) --- --- --- 0/ 7)

Cobalt-58 20/0 2.OE+00 --- ( 0/ 13) --- --- -- ( 0/ 7)

Cobalt-60 20/0 2.2E+00 --- ( 0/ 13) --- -- ( 0/ 7)

Zinc-65 20/0 5.5E-00 --- ( 0/ 13) --- --- - ( 0/ 7)

Zirconium-95 20/0 3.5E-00 --- ( 0/ 13) ---...--- ( 0/ 7)

Niobium-95 20/0 2.4E+00 --- ( 0/ 13) --- -- -( 0/ 7)

Lanthanum- 140 20/0 3.6E+00 --- (0/ 13) - --- --- ( 0/ 7)

Barium-140 (0) Number of positive measurements 'total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Cana Leaves Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LOWER LIMIT MEAN (f)* LOCATION MEAN (f0* MEAN (fn*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Iodine-131 10/0 7.7E+00 --- 0/ 7) ---.--- -- ( 01 3)

Cesium-134 10/ 0 2.OE+00 --- ( 0/ 7) --- -- ( 0/ 3)

Cesium-137 10/0 1.7E+00 --- ( 0/ 7) --- --- - ( 0i 3)

Manganese-54 10/0 1.9E+00 --- ( 0/ 7) ---.--- -- ( 0' 3)

Iron-59 10/0 8.0E1+00 --- ( 0/ 7) ---.--- --- 0/ 3)

Cobalt-58 10/0 2.OE+00 --- ( 0/ 7) --- --- - ( 0/ 3)

Cobalt-60 10/0 2.2E+00 --- ( 0/ 7) ---.--- -- ( 0/ 3)

Zinc-65 10/0 5.5E+00 --- ( 0/ 7) ---.--- --- 0/ 3)

Zirconium-95 10/0 3.5E+00 --- ( 0/ 7) --- -- ( 0/ 3)

Niobium-95 10/0 2.4E+00 --- ( 0/ 7) --- -- ( 0i 3)

Lanthanum-140 10/0 3.6E+00 --- ( 0/ 7) --- --- - ( 0/ 3)

Barium- 140 -1 1

(f) Number of positive measurements / total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC SENERATING STATION

I I Radiofogicaf Environmentaf Oyerating Ryort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Collard Greens Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNU AL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT M'EAN (f* LOCATION MEAN (f'V MEAN (f)*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Iodine-1311 0 4.6E+00 --- 0. 1) ...... no samples Cesium-134 L;0 8.2E-01 --- 0" 1) no samples Cesium-137 1,0 6.21-01 --- 0 1) no samples Manganese-54 10 7.6E-01 --- 0" 1 ) no samples Iron-59 1/0 3.8E+00 --- 0, 1) no samples Cobalt-58 1.0 8.6E-01 --- ( 0 1) --- no samples Cobalt-60 L'0 9.3E-01 --- 0 1) --- no samples Zinc-65 10 2.5E-00 --- 0 1) --- no samples Zirconium-95 110 1.5E-00 --- 0 1 )---... no samples Niobium-95 F0 1.IE-00 --- 0 I) no samples Lanthanum-140 1' 0 1.6E-00 --- 0 I) no samples Barium- 140

(f) Number of positiv e measurements total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Fish - Piscivorous Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (t)* LOCATION MEAN (1"* \IEAN (f)

MEASUREMENTS OF DETECTION RANGE INFORMIATION RANGE RANGE Cesium-134 7T0 2.8E-01 --- 0 )

5.......--- 0" 2)

Cesium-137 7T0 1.7E-01 --- 0 5) --- --- - 0 2)

Manganese-54 720 2.6E-01 --- 0 51 --- ( 0, 2)

Iron-59 7'0 8.4E-01 --- 0 5) -.-- --- ( 0,, 2)

Cobalt-58 7/0 3.0E-01 --- 0 5) ---......- 0, 2)

Cobalt-60 '0 2.7E-01 --- 0" ( 0 ' 2)

Zinc-65 7T0 5.7E-01 --- 0 5) ( 0 1-- 2)

Zirconium-95 70 5.5E+01 --- 0 5) ...... ( 0 2)

Niobium-95 70 4.3E+01 --- 0,' --- -- ( 0 2)

Lanthanum-140 70 1.3E+02 --- 0V 5) --- --- 0 2)

Barium- 140

() Number of positive measurements total measurements at specified locations.

""I'll3 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

-, A-

2001 EnvironmentafReyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Fish -Crustacean & Insect Feeder Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (t)* LOCATION MEAN (0* MEAN (f)*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 3/0 2.8E-01 --- ( 01/ 3) --- no samples Cesium-137 3/0 2.7E+01 --- ( 0/ 3) -- --- no samples Manganese-54 3/0 2.6E+01 --- ( 0 / 3) --.--- no samples Iron-59 3/0 8.4E+-01 --- ( 0/ 3 --- --- no samples Cobalt-58 3/0 3.0E+0 --- ( 0/ 3) --.--- no samples Cobalt-60 3Y0 2.7E-01 --- ( 0/ 3) --- -- no samples Zinc-65 3 0 5.7E+01 --- ( 0/ 3) --.--- nosamples Zirconium-95 3/0 5.5E-01 --- ( 0 3) --- --- no samples Niobium-95 3/0 4.3E+01 --- ( 0 3) --- -- no samples Lanthanum-140 3/0 1.3E+02 --- ( 0 3) --.--- no samples Barium-140

(f) Number of positive measurements total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Crustacean Shrimp Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE 'NONROUTINE LOWER LIMIT MEAN (0)* LOCATION MEAN (0* MEAN (0*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 4/0 2.8E+01 --- ( 0/ 3) ---...--- ( 0/ 1)

Cesium-137 4/0 2.7E+01 --- 0/ 3 --- --- --- ( 0/ I)

Manganese-54 4/0 2.6E+-01 --- ( 0/ 3) --- -- --- ( 0/ 1)

Iron-59 4/0 8.4E 0 --- ( 0/ 3) --- ( 0! 1)

Cobalt-58 4/0 3.OE-01 --- ( 0 3) --- -- --- ( 0 1)

Cobalt-60 4/0 2.7E+01 --- ( 0/ 3) --- --- --( 0/ 1)

Zinc-65 4/0 5.7E+01 --- ( 0/ 3) --- --- -- ( 0/ 1)

Zirconium-95 4/0 5.5E+01 --- ( 0/ 3) --- --- --( 0/ 1)

Niobium-95 4/0 4.3E+0 --- ( 0/ 3) ---.-- --- ( 0 1)

Lanthanum-140 4/0 1.3E+02 --- ( 0 3) ---.--- --- 0 1)

Barium- 140 (f) Number ot positive measurements/ total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC SENERATING STATION 4r

Radiofogicaf Environmentaf Oyerating Reyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

MM;i~r.0 IMo,-f Mert I nits: nico*Curies nor Kilogram wet wxeioht ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITHtIIGIHIEST ANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (f)- LOCATION MEAN (f0 MEAN (1f*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 1110 2.8E-01 no samples --- --- --- 0 1)

Cesium-137 1.0 2.7F-01 no samples --- (0 1)

Manganese-54 10 2.6E+01 no samples --- ( 0 1)

Iron-59 t 0 8.4E+01 no samples ---- ( 0 I)

Cobalt-58 1. 0 3.OE-01 no samples ---- ( 0" 1)

Cobalt-60 1110 2.7E-01 no samples ---- ( 0 It Zinc-65 10 5.7E-01 nosamples ----- 0V I Zirconium-95 10 5.5E-01 no samples --- --- ( 0 1, Niobium-95 1,'0 4.3E+-01 no samples ---- 0" 1 Lanthanum-140 10 1.3E+02 no samples ---- ( 0 ,1 )

Barium-140 (ff Number of positi e measurements,' total measurements at specified locations.

TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Game Deer Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MIEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (0* LOCATION MEAN (0* MEAN (f)*

tMEASUREMENTS OF DETECTION RANGE INFORMATION RANGE R-ANGE Cesium-134 2'0 2.8E+01 --- (0, 2) nosamples Cesium-137 2. 0 2.7E+01 --- 0 2) --- no samples Manganese-54 2,' 0 2.6E-01 --- 0.. 21 no samples lron-59 2' 0 8.4E-01 --- ( 0 2) --- --- no samples Cobalt-58 2' 0 3.0E-01 --- 0 2) no samples Cobalt-60 2. 0 2.7E+01 --- 1 0 2) ---... no samples Zinc-65 2,0 5.7E+01 --- 1 0 2 --- --- no samples Zirconium-95 2.'0 5.5E+-01 --- (0 2) --- no samples Niobium-95 2,0 4.3E-01 --- (0 2) --- no samples Lanthanum-140 2'0 1.3E-02 --- 0 2 )---... no samples Barium-140 I

(1)Number of positive measurements , total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

2001 EnvironmentafReyort TABLE 3 2001 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Quail Units: picoCuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE NONROUTINE LOWER LIMIT MEAN (f3* LOCATION MEAN (0)* MEAN (f)*

MEASUREMENTS OF DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 110 2.8E-01 --- ( 0 1) --- -- nosamples Cesium-137 1/0 2.7E-01 --- ( 0 1) --- no samples Manganese-54 1/0 2.6E-01 --- ( 0 1) --- --- no samples Iron-59 IP0 8.4E+-0I --- ( 0 1) --- no samples Cobalt-58 I/0 3.0E+01 --- ( 0! 1) --- -- no samples Cobalt-60 1/0 2.7E+ 01 --- ( 0 1) -.--- no samples Zinc-65 1/0 5.7E+01 --- ( 0 1)---... no samples Zirconium-95 1/0 5.5E+01 - 0 1) --- --- no samples Niobium-95 1/0 4.3E+0 I ( 0, 1 --- --- no samples Lanthanum-140 110 1.3E+02 --- ( 0 1) --.--- no samples Barium-140

(f) Number of positive measurements /total measurements at specified locations.

SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION

NOC-AE-02001314, Annual Environmental & Annual Radiological Environmental Operating Reports

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