NOC-AE-04001719, 2003 Annual Environmental and Annual Radiological Environmental Operating Reports

2003 Annual Environmental and Annual Radiological Environmental Operating Reports

ML041280247
Person / Time
Site:	South Texas
Issue date:	04/29/2004
From:	Bullard W South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-04001719, STI: 31739784
Download: ML041280247 (49)

Text

Nuclear Operating Company South Teas JI'h EkdicP Gncnatfn9 Statko ldsmhdh, Tx- 7748' P..0.

289 April 29, 2004 NOC-AE-04001719 10CFR50.36b STI: 31739784 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 2003 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 2003 Annual Environmental and Annual Radiological Enviromnental Operating Reports.

If you have any questions, please contact J. D. Sherwood at (361) 972-8766 or me at (361) 972-7130.

W. T. Bullard Manager, Health Physics MKJ

Attachment:

2003 Annual Environmental and Annual Radiological Environmental Operating Reports.

O:WP\NL\NRC-AP\RREP-2003\04001719

NOC-AE-0400 1719 Page 2 cc:

(paper copy) (electronic copy)

Bruce S. Mallett -'A. H. Gutterman, Esquire Regional Administrator, Region IV Morgan, Lewis & Bockius LLP U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 L. D. Blaylock Arlington, Texas 76011-8064 -City Public Service U. S. Nuclear Regulatory Commission Michael K. Jaffe Attention: Document Control Desk U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike R. L. Balcom Rockville, MD 20852 Texas Genco, LP 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 Texas Central Company Jeffrey Cruz Jon C. Wood U. S. Nuclear Regulatory Commission Matthews & Branscomb P. 0. Box 289, Mail Code: MN1 16 Wadsworth, TX 77483 C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 O:WP\NL\NRC-AP\RREP-2003\0400 17 19

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I Table of Contents A Executive Summary ................................................... 1-1 Site and Area Description ................................................... 2-1 Non-Radiological Environmental Introduction and Summary ........................................ 3-1 Non-Radiological Environmental Operating Report ................................................... 4-1 Environmental Conditions

• Aquatic and Ecological Monitoring ................................................... 4-1

• Water Quality Management ................................................... 4-2

• Air Quality Management .................................................... 4-4....

• Non-Radioactive Waste Management ................................................... 4-4

• Chemical Control and Management ...................... ............................. 4-5 Environmental Protection Plan Status ................................................... 4-6 Radiological Environmental Introduction and Summary ............................................... 5-1 Radiological Environmental Operating Report ................................................... 6-1

• Program Description .................................................... 66-1

• Analysis of Results and Trends ................................................... 6-1

• Land Use Census ................................................... 6-9

• Quality Assurance ................................................... 6-8

• Program Deviation ................................................... 6-10 List of Tables Table 1: Radiological Environmental Monitoring Program .............. .............. 6-11 Table 2: Sample Media and Location Descriptions ......................................... 6-13 Table 3: 2003 Radiological Environmental Monitoring Program Analysis Summary ................................................... 6-18 STP rNclear OperatingCompany

-2003 EnvironmentalReport List of Figures Page Figure 4-1: 2003 Nonradioactive Waste Manag'e'ment ................................. 4-5 Figure 4-2: 2003 Nonradioactive Waste Generation .................................... 4-6 Figure 4-3: Hazardous Waste Generation Historical Comparison .................................... 4-6 Figure 6-1: Radiological Environmental Monitoring Program Designated Sample Location Map (Off Site) ................ 6-2 Figure 2: Radiological Environmental Monitoring Program Designated Sample Location Map (On Site) ................ 6-3 Figure 6-3: Radiological EnVirohnmental Monitoring Program Zone Location Map .................................... 6-4 Figure 6-4: Historical Comparison ofAverage Quarterly Beta Activity.............................................................. 6-5 Figure 6-5: Environmental Dosimeter Comparisons .................................... 6-6 Figure 6-6: Historical Comparison of Cobalt-58 and Cobalt-60 In Main Cooling Reservoir Sediment .................................... 6-7 Figure 6-7: Calculated Cumulative Curies of Cobalt-60 In the Main Cooling Reservoir ................................. 6-7 Figure 6-8: Historical Comparison of Tritium Added to And Remaining in the Main Cooling Reservoir ......................... 6-8 Figure 6-9: Historical Compapsonhof Tritium Activity In Surface Water ................................. 6-8 Figure 6-10: 2003 Radiological Laboratory Quality; Assurance Program Performance ................................. 6-10 STP Xrclear Operating Comripany ii

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II Executive Summary d - o I T his report describes the environmental moni-Indicator stations are the second type of stations. The samples frequently fall below the min-imum detection capabilities of toring programs, radio- from these stations measure the state-of-the-art scientific logical and non-radio- any radiation contributed to instruments. Samples with ra-logical, conducted at the South the environment by the project. diation levels that cannot be Texas Project during 2003. In- Indicator stations are located detected are below the Lower cluded in this report are the in areas close to the South Texas Limits of Detection. The United Environmental Protection Plan Project where any plant releases States Nuclear Regulatory Com-Status, the results of the Radio- would be at the highest concen- mission requires that equipment logical Environmental Monitoring tration. used for radiological monitoring Program and the Land Use Census. Prior to initial operation of must be able to detect specified Radiation and radioactivity the South Texas Project, samples minimum limits for certain types in the environment are constantly were collected and analyzed of samples. This ensures that monitored within a 15-mile radius to determine the amount of ra- radiation measurements are suf-of the South Texas Project. dioactivity present in the area. ficiently sensitive to detect small Sampling locations are selected These results are used as a "pre- changes in the environment.

using weather, land use and operational baseline." Results The United States Nuclear Reg-water use information. Two from the indicator stations are ulatory Commission also has types of sampling locations are compared to both current control a required "reporting level."

used. The first type, control sample results and the pre-operational Licensed nuclear facilities must stations, are located in areas baseline values to determine prepare a special report and that are beyond measurable in- if changes in radioactivity levels increase their sampling if any fluence of the South Texas Project are attributable to station opera- measured radiation level is equal or any other nuclear facility. tions or other causes such as to or greater than this reporting The sample results from these previous nuclear weapons testing level. No sample from the South stations are used to explain programs and natural variations. Texas Project has ever reached radiation from sources other Radioactivity levels in the or exceeded a reporting level.

than the South Texas Project. South Texas Project's environment STPeVNuclear OperatingCompany 1 -1

CZ-Executive Summary Measurements made are divided into four categories or pathways based upon how the results may affect the public. Airborne, waterborne, ingestion and direct radiation are the four pathways that are sampled. Each pathway is described below.

• The airborne pathway is sampled in areas around the South Texas Project by measuring radioactivity of iodine and particulate air filters. The 2003 airborne results were similar to preoperational levels with only naturally occurring radioactive material unrelated to the operation of the South Texas Project detected.

o The waterborne pathway includes samples taken from surface water, ground water and drinking water. Also included in this'path are sediment samples taken from the Main Cooling Reservoir and the Colorado River. Tritium was the only man-made isotope consistently detected in water samples and was measured in the shallow aquifer, the Main Cooling Reservoir and other bodies of water onsite. The average tritium level decreased in the Main Cooling Reservoir over the past year and remained below United States Nuclear Regulatory Commission reporting limits and within United States En-vironmental Protection Agency drinking water standards. Sediment samples from the Main Cooling Reservoir continue to show traces of plant-related isotopes. The amount of plant-related isotopes found in reservoir bottom sediment samples has decreased since 1992 because less Cobalt-60 has been added to the reservoir by plant effluents than has undergone radioactive decay. Offsite sediment samples continue to show no radioactivity from the South Texas Project. This indicates that the station produces no detectable effect offsite from this pathway.

o The ingestion pathway includes broadleaf vegetation, agricultural products and food products. Naturally occurring isotopes were detected at average environmental levels in the samples.

o The direct exposure pathway measures environmental radiation doses using thermo-luminescent dosimeters. These results are consistent with the readings from previous years and continue to show no effect from plant operations.

The South Texas Project continues to operate without a negative effect on the population or the environment. The exposure for people living in the area is maintained at less than one millirem per year. Environmental programs at the site monitor known and predictable 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 guidelines.

These programs are verified by the state of Texas through collection and analysis of samples and placement of the state's thermoluminescent dosimeters.

STP Nuclear OperatingCompany 1 -2

Site Area Description Thhe South Texas Project is located on 12,220 acres in Matagorda County, Texas, approximately 15 miles southwest of Bay Fossil-fueled and nuclear-powered City along the west bank of steam generating plants operate on the Colorado River. The South Texas the same principle. Fuel is used Project is jointly owned by Texas to produce heat to convert water Genco, LP, AEP Texas Central Company, into high-pressure steam. The steam the City of Austin and the City of is directed through a turbine to turn San Antonio. Until late 1997, the a generator. In a fossil fuel plant, Houston Lighting & Power Company burning coal, lignite, oil or natural steel piping that passes through large was the designated Project Manager gas in a boiler produces the heat. heat exchangers called steam generators.

for the owners. In November of 1997, In a nuclear plant, the reactor replaces The water in the reactor is pressurized the STP Nuclear Operating Company the boiler and the "fissioning" or to prevent boiling. This is why the assumed operational control of the splitting of uranium atoms inside South Texas Project's reactors are South Texas Project and responsibility the reactor produces the heat. called "pressurized water reactors."

for implementation of all environmental The fuel for a nuclear reactor This hot, pressurized water heats programs. is uranium. It is formed into cylindrical a separate supply of water in the The South Texas Project has two ceramic pellets, each about the size steam generators to produce steam 1,250 megawatt-electric Westinghouse of the end of your little finger. One that is directed through the blades pressurized water reactors. Unit I pellet has the energy potential of of a turbine generator to produce received a low-power testing license about a ton of coal. Millions of electricity. The steam is then fed on August 21, 1987, obtained initial these pellets are stacked in fuel rods to a condenser where a separate supply criticality on March 8, 1988, and that are arranged into assemblies of cooling water from the reservoir was declared commercially operational that make up the core of the reactor. turns it back into water that is then on August 25, 1988. Unit 2 received The use of uranium allows us to conserve pumped back to the steam generator a low-power testing license on December natural gas, oil and coal and to avoid for reuse. A diagram of the plant 16, 1988, obtained initial criticality the associated production of greenhouse water systems is shown below. In on March 12, 1989, and was declared gases. addition to its safety systems, the commercially operational on June A reactor starts operating when South Texas Project has many built-19, 1989. Both units together produce control rods in the core are withdrawn in physical barriers that would prevent enough electricity to serve over a and fission begins. The fuel rods the release of radioactive materials million homes. heat water circulating in sealed, stainless in the unlikely event of an accident.

SECONDARY LOOP

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-2 003 En vironmnental Report are beginning to be developed in the area with the main crop being catfish.

Although the surrounding area is heavily cultivated, significant amounts of woodlands, thicket, brush, fields, marsh and open water exist to support wildlife. The area lies in the southern region of the central flyway and is host to an abundance of migratory birds. The local estuary environments provide the necessary habitat for a variety of fish types to complete their life cycles. The area also affords opportunity for recrea-tional hunting and fishing.

The South Texas Project is home to many species of animals. Inhabitants include American alligators, ospreys, bald eagles and several hundred deer.

In winter, literally hundreds of thousands of waterfowl, principally migratory The most visible ones are the 200- wetlands, Kelly Lake, drainage ditches, geese as well as white pelicans and foot-tall, domed containment buildings sloughs and depressions. Much of the common tern, have found that with steel-reinforced walls four feet the land east of the cooling reservoir the plant's 7,000-acre cooling reservoir thick. Inside each of these massive is leased for cattle grazing. Approximately provides a good resting place during structures, two more concrete walls 1,700 acres remain in a more natural their migrations. The station also provide another 11 feet of shielding. state as a lowland habitat. A 110- established a man-made wetland habitat The reactor vessel itself has steel acre wetland habitat area was establish- in 1996 that attracts an increasing walls six inches thick, and the fuel ed in 1996 on previously unused diversity of migratory fowl and other pellets inside it are sheathed in hardened land located northeast of the power wildlife. Since 1997, the 15-mile-metal tubes. plants. The area surrounding the wide area that includes the South South Texas Project is characterized Texas Project has had the highest Nuclear power plants produce approximately 20 percent of the nation's by coastal plain with farmland and number of bird species nationwide electricity while saving the equivalent pasture pre-dominating. Local relief in the National Audubon Society's of approximately 164 million metric of the area is characterized by flat annual Christmas Bird Count.

tons of carbon, as well as 2.4 million land, approximately 23 feet above The climate ofthe region is subtropical tons of nitrogen oxide emissions sea level maritime, with continental influence.

and 5.1 million tons of sulfur dioxide, It is characterized by short, mild from entering the earth's atmosphere ire I. ~--- winters and long, hot and humid annually. Between 1973 and 2001, summers. Rainfall is usually abundant nuclear generation in the United throughout the year with an annual The economic base for this area States prevented the emission of average of approximately forty-two primarily is agricultural related. Most inches. The prevailing wind direction approximately 2.97 billion tons of of the land near the site is used for carbon, 35.6 million tons of nitrogen is from the south-southeast, shifting the production of five major agricultural oxide and 70.3 million tons of sulfur to north-northeast for short intervals products: beef, rice, grain sorghum, during the winter months.

dioxide. soybeans and cotton. In addition

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" is commercial fishing in the lower Colorado River, East and West Mata- Ad-- T - -

• Sixty-five of the entire 12,220 gorda Bays,'Intracoastal Waterway acres at the South Texas Project are and the Gulf of Mexico. Currently occupied by the two power plants. shrimp, oysters, crab and fin fishes Plant facilities include a 7,000-acre such as catfish and striped bass are main cooling reservoir and a 47- the predominant commercial fish in acre essential cooling pond. Many the county. The Aquaculture farms smaller bodies of water onsite include STP Nuclear Operating Company 2 -2

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I I Non-RadiologicalEnvironmental- Itrrozductionl and Sunmary he South Tex- The station's commitment to sound environmental management is illustrated as Project is by the following environmental successes in 2003:

committed to the production o Continued classification as a high performer by the of electricity in a safe, Texas Commission on Environmental Quality based on reliable, and economi- the station's above-average environmental compliance cal manner using nuc- record in all areas considered, including water quality, lear energy. The station's waste management and air quality compliance programs, policies and o Station involvement in community efforts to increase business plan objectives public safety awareness, collect hazardous and non-also incorporate a com- hazardous waste for proper disposal and responsibly mitment to environmen- manage regional water resources Continued reductions tal excellence and sound in non-radiological waste generation at the station.

environmental man-agement. The dedica- Everyone has a responsibility to protect the environment. Commitment tion of station personnel to environmental responsibility is an integral component of the South who develop, imple- Texas Project operating policy. This responsibility reaches further ment and monitor site than mere compliance with laws and regulations to encompass the environmental protec- integration of sound environmental practices into our daily operational tion programs and com- and business decisions. The people at the South Texas Project understand pliance exemplify this the need to balance economic, operational and environmental issues commitment. for the benefit of the station and the public. The South Texas Project understands that we must hold ourselves to the highest principles of responsibility for our environmental and station activities.

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, ,i',,describesthe South Texas t'a common' goal to prtect the state P,]roject',snon-radiological~' air,'wateran'd aiand resources-s a" Te e ment pam partner in'the CLEAN TEXAS program,'

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'ltrough December 1 2003 Theimprovement goals, maint

.STPNuc 1er Op erati ng Company improving internal programs and conung

'environmenta1 staffcloselyzmonitors communlityenvironmental outreach environmental conditions and per programs.anrid projects. In .2003 formiance'at the South Texas Proj ect SouthTexkasProjectvolunteers participated

-Reliaiit Resources, lInc -'1provides in the atagorda-County Communiity-

.support'.and technical hassistance. SafetyAwareness dayand the Matagord.

to the'South Texas'Project.'-In;2003,' .c.County Househoid Ha'zado'us'ate§

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- mental Quality condu~icted a wastewater "-, ",-The Tekas Commission on Environ-disc argepermitcompliance ,in- .'.>mental-Quiaiity.-classified the Soiuthn i-peCtl n at the stati on No 'di s -Texas Projc in 2003 as a high performer crepancies were foiund.-X- z ' based onfthe station s above-average 4In 2002,the South Texas Projectj Menvironmental compliance record applieddfor recog'nition as a-partner iFaciitiessuch as the So'uth.Texas in the CLEAN TEXAS program ad7 "IProject are clssified y the state

-ministered by the Texas Commission '.>as a high performer, average performer on Environmental -Quality.-- -The :,-- orpoorperformer based on that facility s

.:tate 'sub seq-uentlygranted approval , compliancehistory.The state's classification

.of the station's application..: CLEANT--6f the-South- TexasiProject as'a hight

.TEXAS i a voluntaryenvirohnmental.'P-perforier.was u based on the station's l adershipuprogram compris e of 1.environmental peformance overthe indinstriesononprofit groups, coun->e-lastfV earpdi16dj' Photo by: Gwenna Kelton AQUATIC AND ECOLOGICAL MONITORING he location of the South remaining area of the site offers diverse Department ofAgriculture Conservation

' Texas Project falls within habitats for mammals and several 'Award in 1999 for habitat preservation.

the Texas Land Resource types of birds. -- The South Texas This habitat area immediately attracted Area designation as coastal Project-environmental staff regularly a variety of bird species-and other prairie and can be divided monitor the site's environs for changing wildlife and has continued to support

• intotwo broad ecological areas based conditions:-.Ecological conditions an increasing diversity of plants and on topography, soils and vegetation. -onsite in 2003-remained generally animals. An observation trail adjacent The bottomland area is a swampy, unchanged'and satisfactory. to the wetland habitat allows easy marshy area that occupies approx- In 1996,;the SouthfTexasProject access and viewing by visitors.

imately 1,700 acres of the site near and Houston Industries Incorporated The South Texas Project is located the Colorado River. This area provides initiated a joint effort with Ducks on the state-sponsored Great Texas an important habitat for birds and Unlimited, Texas Parks and Wildlife, Coastal Birding Trail that spans the other wildlife. A spoil impoundment 'the United'States Fish and Wildlife entire Texas Gulf Coast from Brownsville constructed in 1972 by the United Service, and theUnited States De- *to the Louisiana border. Several States Army Corps of Engineers is partment of Agriculture Natural Re- bird species listed on the state and included in this area. In addition, sources Conservation Service to es- federal threatened or endangered species a 110-acre wetland habitat area that tablish a '10-acre-wetland habitat lists have been observed at the wetland attracts a variety of bird groups and for migratory waterfowl at the station. habitat and elsewhere onsite. These other wildlife' was established'in The wetland pr6ject received the include the bald eagle, peregrine 1996 on previously unused land located Ducks Unlimited Habitat'Conservation falcon, wood stork, white-faced ibis, northeast of the power plants. 'The Award in:1996 and a United States wood ibis and white-tailed hawk.

STP Nuclear Operating Company 4-1

-2OO3'Environmental Report Additional migratory and resident Water Quality Management bird species such as a variety of Cooling Reservoir .The Main Cooling J!Water is an essential ducks, geese, turkey and pheasant in! electricity ~production, and -'all 2'Reservoir is a 7,000-acre above g have been observed during informal eltric ;utilities must complywith off-channel reseryoir capableo ht surveys of the site's diverse natural .

kte~sive t._}A federal,^ _-i.

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and man-made habitats. water'regulations. Theseregulations Sati-ts maximum'level. Reservoir The South Texas Project continues govern virtually every aspect of9bu- 'makeup water is withdrawn inter-to provide vital habitat for more than 125 different species of wintering ines' Te~, ,,.,,,,op'rations 2w r'2#"i '-! '.'4 atthe

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Project Water usage and-wastev'ati tInIaRiver ldditiontheEssential and-resident birds, including the treatment onsite are regulated iindet ;Cooling:Po'id;aia-46.9.7adre,-eldoT common tern and white pelicans. th Safe Drinkin'g.Water Actjthe grade'off-channelr servo su In 1998, a small number of black Federal'Clean WaterAct and the Texas plies water~to cool'ruciM lanit com-skimmers and least terns established u.,.ae H f <;<XSi.--i;<b..-+

Water Quality, ActCollectively' ponents:'is -cabi ofimponding nests on a remote parking lot at these acts provide for the safeguardig-388 acre-feet f ae Various 'water the station. Special precautions of6:public' drinking iwater supplies rights permits, contractual agreements were taken to protect the nesting a ndmaintaining -- ;,A>

the--integrity of state and conpliance locuments autho." ^;vg<.

area and a small, but growing population q 1-'-j,?t\,-i.S,,

Urizethe'South'exas Project to main'T 2-and federal waters :!-The South Texas of both species has continued to roject uses both surface water and tam these reservoirs; impound water return each year to the site. Intensive groundwater for st-atio purpose

- dm s qn ivert? .r-ithedado Riv er bird nesting continues throughout roundwater provides onsite drinkingocand to irculatedivert and use water the lowland habitat; particularly- water for station personnel, replenishes from :the res ervoiirsfor- industrial in a heron'rookery around the periimeter theiEssential Cooling Pond, and is .- purposes to operate the plant <.These' of Kelly Lake. U. S. Fish and Wildlife sed for other industrial purposes permits dlso'limit the rate of diversionP Service biologists estimate that disite 'Surface water,,from the Main'. Sfrom the 'Colorado t Rive'r. -- l;,;a;xJ over half of Texas' breeding adult Existiii federal and water 1 Cooling R-servoir and the Essental Gull-billed Tern population nest ooing fothCooaoPond is used River~.,s:-6lng replnish Dcar r~iiatiofSyte (PDS nqualityiitnd on the internal dikes of the Main v 9for- plant activities.Watr and enforced through the Texas Pollutant Cooling Reservoir. The U. S. Fish and Wildlife Service considers nesting the-Main Cooling;'Reservoir via permit program torestore andini of Gull-billed Terns in Texas uncommon. ntermittent pumping petiods.; S tam s a s In ,1,99 The South Texas Project continues SlMost'~of 'thr.-water'used. byhe 'the State.fof Y6,a'.assumedjauth1 to monitor important wildlife species Sot iTxs ,,Piodjectsis nqee~'ded~-o'~rity 't-oadmrinister &i'~ip-rnnt to detect population changes. Informal ondense steamifandeerovide cooling the. fedefal NationaJPollutaIt'Di observations by station and Reliant forlplant generating 'sysfen~i&. The ;.charge Eliiniiiatin Systeni(NPDES)

Resources, Inc. personnel continue ii'ajbrity of thiswater is drawnfrom'--.. program. :Accordingly,'federal an'd to indicate that the site provides iiid~returned toihthestton's 'Maim- state requiren'ents'were'coisolidated high-quality habitat in which a wide range of animals live. The site continues to attract extensive wildlife populations, offering a refuge for resident species as well as seasonal migrants. The lowland habitat located between the Colorado River and the east bank of the Main Cooling Reservoir offers a significant sourceof water year-round. These natural resource areas, in concert with numerous additional wetland and grassland areas, offer the key ingredients necessary to sustain the extensive wildlife pop-ulation at the South Texas Project. '4.'

STP Nuclear Operating Company 4 -2

IR Non-RadiologicalEnvironmentalw prail Rpr of Intent for transfer from the Gener-al Permit to the Multi-Sector General Permit with the United States Environ-mental Protection Agency in 1998.

The Texas Natural Resource Conservation Commission issued a TPDES Multi-Sector General Permit in August of 2001. The station filed a Notice of Intent in November of 2001 to obtain coverage under the state permit and the station's Storm Water Pollution Prevention Plan was modified accord-ingly to reflect these changes. This plan is a working document that is revised whenever there is a change in design, construction, operation or maintenance that has a significant effect on the potential for the discharge of pollutants from the station.

In order to regulate storm water pollution resulting from construction activities, the Texas Commission in November of 2000 into one waste- charge permits or otherwise. Wastewater on Environmental Quality further water discharge permit for the station discharges met state and federal water requires authorization of storm water under the TPDES permit program. quality standards demonstrating a discharges from construction activities Under this permit program, the South 100 per-cent compliance record for that entail the disturbance of one Texas Project monitors, records and the year while conserving and maximizing or more acres of land. Accordingly, reports the types and quantities of efficient water usage at the station. a separate Storm Water Pollution pollutants from wastewater discharges No discrepancies were noted in the Prevention plan was developed for to ensure that we meet or exceed wastewater discharge permit compliance the construction of a three-lane vehicle the stringent levels set in the permit. inspection conducted by the Texas pull offarea with an additional overflow A monthly monitoring report is submitt- Commission on Environmental Quality parking area along the main plant ed to the Texas Commission on Environ- at the station in 2003. access road that commenced in November mental Quality for wastewater dis- In addition to the wastewater of 2003.

charges. Reports identifying ground discharge permit program, the Federal Following a severe drought in and surface water use are also submitted Clean WaterAct, as amended in 1987, 1996, the Texas Legislature recognized annually to the Texas Commission requires permits for storm water dis- the need to address a wide range on Environmental Quality and Texas charges associated with industrial of state water resource management Water Development Board. activity. The South Texas Project issues. In 1997, the Texas Senate Wastewater generated at the South Storm Water Pollution Prevention drafted legislation known as Senate Texas Project is processed and dis- Plan, implemented in October of 1993, Bill I to address these issues and charged to the onsite Main Cooling ensures that potential pollution sources to develop a comprehensive state Reservoir to be re-used by the station at the site are evaluated, and that water policy. Towards this end, this as cooling water for plant systems. appropriate measures are selected legislation required that the Texas No water was released from the re- and implemented to prevent or control Water Development Board create a servoir in 2003. The station con- the discharge of pollutants in storm statewide water plan that emphasiz-tinued its outstanding wastewater water runoff. In September of 1998, es regional planning. Sixteen plan-discharge compliance performance the United States Environmental Pro- ning regions were created, each task-record in 2003. Station conditions tection Agency modified the storm ed to prepare a regional plan for did not require site aquatic monitoring water permit program to require facilities, the orderly development, manage-studies be conducted in 2003 nor such as the South Texas Project, permitted ment and conservation of water re-were any additional studies required under the baseline general permit sources. The South Texas Project by the United States Environmental to obtain permit coverage under a was chosen to represent the electric Protection Agency or the State of multisector general storm water permit. generating utility interest for the Texas either by way of station dis- Accordingly, the station filed a Notice water-planning region that encom-STP Nuclear Operating Company 4 -3

2003 EnvironmentalReport Air Quality-Management passes the lower Colorado River Basin. amounts of fossil fuel for backup of firefighting training sessions is Plans subsequently submitted by each and emergency equipment. Air emission provided to the Matagorda County planning region were incorporated sources at the South Texas Project Environmental Services and the Texas into a State Water Plan in the year fall under the scope of air pollution Commission on Environmental Quality.

2001. However, water resource plann- regulations promulgated under the On five occasions, onsite fire extinguisher ing is a continuous process and the Texas Clean Air Act, the Federal Clean training was conducted for short periods Regional and State water plans must Air Act and numerous associated amend- on days not identified in the associated be updated every five years. The ments that protect air resources from open burn notifications. These permit South Texas Project continues to pollution by controlling or abating condition deviations were subsequently' actively participate in the Lower air pollution an'd emissions. 'The reported to the Texas Commission Colorado Regional Water Planning major regulated air emission sources on Environmental Quality.

Group to update the existing-plan at the South Texas. Prject include Title V Federal Operating by 2006. Additional information one fossil-fueled boiler and various Permit regarding regional water planning emergency diesel generators. In 1990, amendments to the Federal in Texas can be found on the website The South Texas Project has one Clean Air Act mandated a new per-maintained by the Texas Water Develop- oil-fired auxiliary steam boiler available mitting program to clearly define ment Board at http://www.twdb.state.- to furnish steam for deaerator startup, applicable air quality requirements tx.us/or at regionk.org. turbine gland'seals and radioactive for affected facilities such as the The South Texas Project understands liquid waste processing when steam South Texas Project. This program that the water resources of the state is not available from the nuclear is commonly known as the Title V are a critical natural resource requiring steam supply system. On two occasions Operating Permit Program and is ad-careful management and conservation in March of 2003 during operation ministered by the state. The Texas to preserve water quality and availability. of the station's auxiliary boiler, flue Natural Resource Conservation Com-Accordingly, the station continues gas excess oxygen levels intermittently mission (now known as the Texas to explore and support efforts focusing fluctuated above the permit established Commission on Environmental Quality) on the efficient use of water resources range for manual operations. The issued a Federal Operating Permit and reduction of water waste. excess flue gas oxygen range establish- in January of 2000 for the South Air Quality Management ed in the permit is a control parameter Texas Project granting authority to Air emission sources at the South for operation of the auxiliary boiler. operate identified emission units Texas Project fall under the scope The condition-was corrected and no at the station in accordance with of air pollution regulations promulgated emission limits were exceeded. Correc- applicable permit and regulatory under the Texas Clean Air Act and tive actions were taken to prevent requirements. The Texas Commission the Federal Clean Air Act and the occurrence. These permit condition on Environmental Quality revised numerous associated amendments. deviations were subsequently reported the permit in July of 2003 to add The purpose of these regulations to the Texas Commission on Environmen- applicable requirements regarding is to protect air resources from pollution tal Quality. In addition to the auxiliary minor new source review authoriza-by controlling or abating air pollution steam boiler, a number of fossil-fuel- tions. In accordance with the South and emissions. Regulated emission ed diesel generators are located onsite. Texas Project's Federal Operating sources at the South Texas Project These diesels are designed to pro- Permit's reporting requirements, those include a fossil-fuel boiler, emergency vide emergency power to various deviations from permit conditions diesel generators, fire-fighting train- plant systems-or buildings in the discussed previously were reported ing and other minor maintenance event of a loss of power. This equip- to the Texas Commission on Environ-equipment and activities. ment is not normally needed for daily mental Quality.

Fossil-Fueled Emission Sources operations and the station does not Non-Radioactive Waste Unlike conventional electrical use it to produce electricity for distribu- Management generating stations, nuclear power tion. Routine maintenance runs are Solid waste management procedures plants do not burn petroleum fuel. conducted to ensure availability if for hazardous.and non-hazardous Therefore, the South Texas Project needed and for equipment mainte- wastes generated at the South Texas produces virtually no greenhouse nance. - Project ensure that wastes are properly gases or other air pollutants that Fire-Fighting Activities dispositioned in accordance with are the typical by-products of industrial The South Texas Project conducts applicable federal, state~and local production processes. The use of onsite training of selected employees environmental and health regulations.

emissions-free' nuclear power is a on proper fire-fighting techniques. By regulatory definition, solid waste significant contributor to the preservation Most onsite instruction consists of includes solid, semi-solid, liquid of our community's clean air resources. training on the proper use of a fire and gaseous waste material. The The South Texas Project uses small extinguisher. Advance notification Texas Commission on Environmental STP Nuclear Operating Company 4 -4

Non-RadiologicalEnvironmental .

Operating Report tion of several tons of paper each 2003 Nonradioactive Waste Management year. In 2003, the station collected South Texas Project approximately 36 tons of paper for recycling. Every ton of paper recycled saves approximately 17 trees, el-Recycle iminates approximately three cubic 76.0% yards of landfill material and saves enough energy to power the average home for six months. The station continues to explore new areas where recycling may be expanded or initiated.

Non-radioactive solid waste that cannot be shipped for recycling is shipped for disposal. Municipal-type trash is transported to the county Incineration & Landfill 19.2% landfill transfer station for appro-Fuel Blending 4.8% priate disposition. Construction-related non-combustible, inert debris, if generated, is placed in the onsite Figure 4-1 landfill. Waste minimization and Quality, which administers the Texas at the South Texas Project in 2003 source reduction efforts by employees Solid Waste Disposal Act and also was limited to a maximum holding allowed the South Texas Project to the federal Resource Conservation period of 90 days. The Resource achieve approximately an 8 1 percent and Recovery Act program, is the Conservation and Recovery Act and reduction in normal hazardous waste primary agency regulating non-radioac- Texas Solid Waste Disposal Act also generated at the site during 2003.

tive wastes generated at the South require the use of proper storage The volume of hazardous waste gen-Texas Project. The Texas Commission and shipping containers, labels, mani- erated at the station was sufficiently on Environmental Quality also regulates fests, reports, personnel training, low in 2003 to allow the station the collection, handling, storage and a spill control plan and an accident to re-classify as a small-quantity disposal of solid wastes, including contingency plan. Plant personnel generator early in 2004. Hazardous hazardous wastes. The transportation routinely inspect areas throughout waste accounts for only a small portion of waste materials is regulated by the site to ensure wastes are not stored of the waste generated at the South the United States Department of Trans- or accumulated inappropriately. Texas Project; however, minimization portation. Station policies and regulations and reduction of hazardous waste The South Texas Project was register- encourage the recycling, recovery generated where feasible remains ed with the Texas Commission on or reuse of waste when possible to an important goal at the station.

Environmental Quality as a large reduce the amount of waste generated (Reference Figures 4-2 and 4-3 )

quantity generator of industrial solid or disposed of in landfills. Approxi-wastes in 2003, including hazardous mately 76 percent of the industrial wastes. Texas Commission on Environ- non-radioactive waste generated at mental Quality regulations require the South Texas Project was recycled that indust-rial solid wastes generated or processed for re-use in 2003. (Ref-at the South Texas Project be identified erence Figure 4-1) The South Texas to the Commission and these are Project ships waste oil, grease, electro-listed in the Texas Commission on hydraulic fluid, adhesives, liquid Environmental Quality Notice of Regis- paint and solvent for fuel blending tration for the South Texas Project. and thermal energy recovery. Used The registration is revised whenever oil, diesel fuels and antifreeze solu-there is a change in waste management tions are sent to a recycling vendor practices at the site. Waste handling for reprocessing. Lead-acid batteries and disposal activities are summarized are returned, when possible, to the and documented in a waste summary original manufacturer for recycling report for the South Texas Project or are shipped to a registered battery that is submitted annually to the recycler, thereby reducing the volume Texas Commission on Environmental of hazardous waste that might other-Quality. wise be generated. A site paper re-Hazardous waste accumulation cycling program results in the collec-STP Nuclear Operating Company 4 -5

'% 2003 EnvironmentalReport Chemical Control Management The South Texas Project uses 2003 Nonradioactive Waste Generation standard operating procedures, policies South Texas Project and programs to minimize the generation of waste materials, control chemical Non-Hazardous usage and prevent spills. Waste The South Texas Project also evaluat- 96.2% -

es chemicals and products proposed for use, which could come in contact with plant components. Site procedur-es address the evaluation, storage, use, spill control, and disposal require-ments of chemicals. These guidelines assist in reducing wastes, ensure proper Universal Waste packaging for disposal and mitigate 0.6%

the consequences of inadvertent spillage.

Hazardous Waste Used Batteries The South Texas Project empha- 0.2% 3.0%

sizes awareness training for spill prevention and maintains station Figure 4-2 readiness to respond should a spill occur. Spill response team members Hazardous Waste Generation Historical receive annual refresher training in Comparison South Texas Project hazardous material incident response.

No significant or consequential spills occurred in 2003.

25 20 1015 Environmental Protection Plan Status lo5 The South Texas Project's Environ- 0 1997 1998 1999 2000 2001 2002 2003 mental Protection Plan was issued in March of 1989 to provide for the O Hazardous Waste from Cleanup of an Onsite Spill protection of non-radiological environ-

• Hazardous Waste mental values during operation of the South Texas Project. This report Figue 4-3 reviews Environmental Protection unreviewed environmental questions No unreviewed environmental Plan non-compliances identified by if it concerns: questions were identified in 2003.

the plant in 2003 and the associated I) A matter that may result in Events that require reports to federal, corrective actions taken to prevent a significant increase in any state or local agencies other than their recurrence. Potential nonconfor- adverse environmental impact the Nuclear Regulatory Commission mities are promptly addressed, as previously evaluated in the such as the Title V Operating Permit identified, to maintain operations Final Environmental Statement program deviations discussed earlier in an environmentally acceptable related to the Operation of in this report are reported in accord-manner. The station uses its Correc- South Texas Project, Units ance with the applicable reporting tive Action Program to document I and 2 (Docket Nos. 50-498 requirements. The Nuclear Regula-these conditions and track corrective and 50-499), environmental tory Commission is provided with actions to completion. Internal assess- impact appraisals, or in any a copy of any such report at the ments, reviews and inspections are decisions of the Atomic Safety time it is submitted to the cognizant also used to document plant compliance. and Licensing Board; or, agency. If a non-routine event occurs This report also reviews non- 2) A significant change in eff- and a report is not required by another routine reports submitted by plant luents or power level; or, agency, then a 30-day report to the personnel and any activities that 3) A matter not previously reviewed Nuclear Regulatory Commission is involved a potentially significant and evaluated in the documents required by the Environmental Protec-unreviewed environmental question. specified in (1) above, that tion Plan. No such 30-day or other A proposed change, test or experi- may have a significant adverse non-routine report of this type was ment is considered to present an environmental impact. required in 2003.

STP Nuclear Operating Company

U RadiologicalEnvironmentalI-ntroduction and Summary here were two items of interest identifie'd by this program during 2003. A short Tdescription of them follows.

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

• Low level tritium was monitored in shallow aquifer ground water samples.

The shallow. well was located within approximately seventy-five yards of the Main Cooling Reservoir dike base. The positive values, measured since 1999, increased during the year, as anticipated; but remained less' than in the Main Cooling Reservoir. -

Operation of the South Texas Project continues to have no detectable radiological impact offsite. Samples analyzed from the off-site sampling stations continue to show no radiological contribution from' plant operation. The radiological doses received by.the general public from plant operations were less than one millirem which is insignificant when comparedito the 360 millirems average annual radiation exposure to people in the United States from natural and medical sources.

STP Nuclear Operating Company 5 -1

71- " 1 Radiologica tEnvironmentalIOperatingReport Program: Des~cription he South Texas Project initiat-. the minimum sampling locations and be noted that this practice is not

• -ed a comprehensive preopera- frequency oficollection. always possible or meaningful with tional Radiological Environ- Sampling locations consist of indicator all sample types. Fluctuations in fl mental Monitoring Program and control stations. Indicator stations the concentration of radionuclides S in July 1985. That program are locations'on or off the site that and direct radiation exposure at in-terminated on March 7, 1988, when may be infliuenc'ed by plant discharges dicator stations are evaluated in relation the operational program was implement-. during plant operation. Control stations to historical data and against the ed. The pre-operational monitoring are located beyond the measurable control stations. Indicator stations program data forms the baseline against influencexof thie-South Texas Project are compared with characteristics which operational changes are measured. or'any other nuclear facility. Although identified during the pre-operational Critical pathway analysis requires most samples analyzed are accompani- program to monitor for radiological that samples be taken from water, ed by a control sample, it should effects from plant operation. Several air, and land environ- sample'identification ments. These samples lmethods are used to are obtained to evaluate - 'implement the pro-potential radiation gram. Figures 6-1 exposure. -Sample and 6-2 are maps that types are based on identify permanent established pathways sample stations. Des-and experience gain- _ cripions of sample ed at other nuclear stations shown onFigure facilities. Sample 6-1 and 6-2 are found locations were deter- in Table 2. Table 2 mined after consider- also includes addicc ing site meteorology, tional sampling loc-Colorado Riverhydro- ations and media types logylocaldemography that may be used for andlanduse. Sampling additional informa-locations are furthere tion. Figure 6-3 illu-evaluated and modifi- strates the zones used ed according to field when collection loca--

and analysis exper- tions are not perma-ience. Table i lists nent sample stations.

flflybbUITVULbUUL ni iiUU

. nvironmental saiples-from .comparisonillustratesthatplantoperationiV scent dosirneters located at 43 sites

-i.-areas surrounding th Sotth

• arenothavinganimpactonairparticulate& The'natural direct gamma nlatlo Texas roject5iniiet6mhlcate activity even at the Sensitie Indicato varesaccording to location because no1significant radiobogicaleffectsjStations (#1s,#1'5,- and#16).The-se ,ofdiffer6ncesinthenaturalradioactive o'into'rto.-Anaiyticais,,t'at'ic'ns' are'elo'c-at'e'd:'nea'r thse pla~nCtifa~ilin1~t-osu

'valti&frd'offsite indicator sample ->.and are Ilocated

.:.r 1;4sam *,~ - t d' downwindI fe fromfthe

. l.  : R.

the

-content anda~hyge5-f,D

vetaifoncover.

-. =.;-.i .. ..-;tidw;cov.

• t .

siatonsd ontinue to trend!wlth jtheD  %:Fplani e on`t epgura6-5; icoiparesi _th etamount

,control stations. ,Ons iti indicator Fdirectidh>nThe betahativity-measured .of directgamma 'adiaiion measure

's-?iitinueidto ;w'c're' 'o dsaipl in'thKeairjparticulate sapples isfrm t the plant in6ethe o'urt 'quarteri edcres'e iifinmeasu'red v liiesttleir natuAl taaioivehaterialSs 6ff 8 'fothre&'ifferennt'typesire pes expadtedrra ad i o ac -J exp cte a ra te s -prfh. inTh-e' 9otions: rta We t Control -hStation's]

Av--eeragerquarterybeta activityprform gamma analysis on quarterly aregreater than miles fr e from three onsite indicator stations composites of the airparticulate samples -',,site and are in the idrection 'of the anda singlecontroilstation foraair t'odeterm'in if'an a6ctivity is from leastprevailingwinds (Stations 23 particulate samples have been compared "the South S Texas Proj ect The gamma and #37),The Sensitive In historically from 1988 through 2003' -analysis 1 revealedthat it was all natural -Stations are in the 'directions that (see'Figur'e 6-4)'Te average of radioactivity the wnd blows most often'andlare the onsite indicatorstre'nds-closely Directga7 radiatiois monitore on mi e fromerplants onw with th offsite control vhiue'sThe in the environmentiby thermolumineii- Fam mto' 'Market Road 521 (Stations j-,;,b.^.i~eoro

v.. .?! i .--ti STPNuclear

OperatingCompany 6 -1

'2003 EnvironmentalReport Designated Sample Locations

• L <*

I I

,i .

'44.

-b _,X~

A*

Figure 6-1 STP Nuclear Operating Company 6 -2

Radiological Environmental d)erating Report Designated Sample Locations (On Site Sample Locations)

Figure 6-2 STP Nuclear Operating Company 6 -3

a2003 EnvironmentalReport Zone Location Map N

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 site numbers 1-6.

Figure 6-3 STP Nuclear Operating Company 6 -4

RadiologicalEnvironmental OperatingReport Analysis of Results and Trends (Continued from page 6-1)

Historical Comparison of Average Quarterly Beta Activity from Indicator and Control Air Samples 1988 - 2003 0.03500 0.03000 ......----

t 0.02500- 1 : 050 _ ______ A AA AA t 0.02000 - A m 0.01500 U3 0.01000 0.00500 -- ~ L-_ _ -

ro 0.00000 1988 1991 1994 1997 2000 2003

-Station #001, #015 & #016 Average of Onsite Indicators

-Station #037 Offsite Control Figure 6-4 STP Nuclear Operating Company 6 -5

=>->2003EnvironmentalReport Environmental Dosimeter Comparisons 22

-Average of Indicator Stations Average of Control Stations Sensitive Indicator Stations 20 18 16 o 14

~12 Unit #1 Criticality - 03/08/88 Unit #2 Criticality - 03/12/89 10 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Results by Quarter Figure 6-5 STP Nuclear Operating Company 6 -6

RadiologicalEnvironmental aperauingReport Historical Comparison of Cobalt-58 & Cobalt-60 in Main Cooling Reservoir Sediment 1986 - 2003 1800

- Station #215:

1600 Cobalt-58 Plant Discharge 1400 Station #215:

Cobalt-60 Plant a Discharge

' 1200 ___

en s ...... hThe Cobalt-58 activity inthe reservoir has decreased to

• c'

- 800 -_____b_ below levels that can be detected. Statistical variations typical of material in a a 600 particulate form are seen in 1996 & 1997 Cobalt-60 values. The inventory of 400 - Cobalt-60 has decreased since 1992 due to radioactive decay and reduced liquid effluents.

200 -----------

0 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Figure 6-6 Calculated Cumulative Curies of Cobalt-60 in the Main Cooling Reservoir 3t60 ASSUMPTIONS:

1. Radioactive decay is the only mechanism for removal from the Main Cooling Reservoir.

2. The initial time for calculating the remaining radioactivity is July I of the year released.

Figure 6-7 STP Nuclear Operating Company 6 -7

i 2003 EnvironmentalReport Historical Comparison of Tritium Added to and Remaining in the Main Cooling Reservoir 1989 - 2003 4000 3500 3000 2500 C 1500 1000 500 0

1989 1990 1991 1"92 1993 1994 1995 196 1997 198 199 2000 2001 2002 2003 UTritium Released to the Main Cooling Reservoir *Tritium Measured in the Main Cooling Reservoir Figure 6-8 Historical Comparison of Tritium Activity in Surface Water 1988 - 2003 30000 E 25000 0

20000 EW

19&

15000 I-10000 5000-1908 1989 199 1991 9W2 1993 1994 1995 I96 W97 999 1999 2099 2001 2902 2003 r E River Sam.ple Upstream of Plant (Offsite) #Q02

• River Sample Downstream of Plant (Offsite) #QO I

• West Branch of River (Onsite) #213 *Little Robbins Slough (Onsite) #212

• East Branch of Little Robbins Slough (Onsite) #211 I Ditch NE of Main Cooling Reservoir (Onsite) #229 llMain Cooling Reservoir Blowdown (Onsite) #237

• Main Coolina Reservoir (Onsite) #216 Figure 6-9 STP Nuclear Operating Company 6 -8

RadiologicalEnvironmmental 3p7 tratigReport T The Annual Land Use Census is performed to determine if any changes have occurred changes are needed in the Radiological Environmental Monitoring Program.

The census is performed by contacting to verify the nearest residents within five miles of the South Texas Project generating units in each of 16 sectors.

in the location of residents area residents and local government The nine sectors that have residents and the use of the land within five agencies that provide the information. within five miles and the distance miles of the South Texas Project The results of the survey indicated to the nearest residence in each sector generating units. The information that no changes were required. are listed below.

is used to determine whether any In addition, a survey is performed Nearest Residentsn Sector Distance Location '

a r miles) apE p r> - _ _ _ _ _ _ __;-_ _ _ _ _ _ _ _ _ _ _- _ _ _ _ _ _

ESE- 3.561i SE W 3-.

5 ~--SelkirkIsland e SWrk -~ 45 --CitruGrve~

WSW 25  : -. -= --

_W 45 F4i095.

V1NW44 ~ _4.0 AsbyBucke -Road NW 4 .Mondrik R6Sid=Z NWSW--;' Ru R 1ls`Ranch (FM 1468) - -

The following items of interest were noted du-ring the census 1 A 110 -acre wetland prairie project. the second is five miles southwest inter-laboratory measurement assurance continues to provide a habitat of the 'plant. The water supply programs. These programs provide for migratory birds and waterfowl. for the ponds is not affected by samples that are similar in matrix The habitat is located northeast the operation of the STP power and size to those measured for the of the power plants and is easily plants. Radiological Environmental Monitoring accessible to the public. Quality Assurance Program.

Figure 6-10 summarizes the

• Colorado River water from below Quality assurance encompasses results of these intercomparison pro-the Bay City Dam has not been planned and systematic actions to grams. Analyses consisted of radiochem-used to irrigate crops. . --

ensure that an item or facility will ical measurements and'measurement perform satisfactorily. Reviews, surveil- of direct radiation through the use

• No commercial dairy operates in lance and'iudits' have determined of thermoluminescent dosimeters.

Matagorda County and there is that the prograams, procedures and In addition, approximately twenty no agricultural milk source within personnel perform satisfactorily. percent of the analyses made are the five-mile Zone.' Quality; audits and independent quality control samples that consist technical reviews help to determine of duplicate, split and blind samples.

• There were no identified commercial areas that'need attention and re- Radiochemical measurements vegetable farms located within evaluation. Areas that need attention must meet sensitivity requirements the five-mile Zone. are addressed-in accordance with at the lower level of detection for the station's Corrective Action Program. environmental samples. These stringent 1 Two commercial fish farms continue The measurement capabilities requirements were met in all samples to operate. One-is two miles west of the Radiological-Laboratory are presented in this report.

of the plant near FM 521 and demonstrated by participating in STP Nuclear Operating Company 6 -9

-- 2003 EnvironmentalReport 2003 Radiological Laboratory Quality Assurance Program Performance 0-5% Difference 5-10% Difference 10-15% Difference 83 Total Analyses Figure 6-10 Program Deviations Deviations from the sampling pro-gram must be acknowledged and ex-plained in this report. During 2003 the following samples were not collect-ed or were unacceptable for analysis:

• Three out of thirty-six required broadleaf vegetation samples were not collected due to seasonal unavailability in February.

• Fourteen out of two hundred and sixty air samples were not con-tinuously collected for the full time interval due to equipment and power failures. However, all but two air particulate and one air iodine samples met the LLD requirements and the results are included in Table 3.

STP Nuclear Operating Company 6 -10

I RadiologicalEnvironmentaliwraingReport 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 (WSW,ENE), 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 SamDler:

Gross Beta Following Activity filter change Gamnma- 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 I- 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

.- 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 STP Nuclear Operating Company 6 -11

02003 EnvironmentalReport Table I 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 Drinkina Water 1- Located on site. Grab Monthly Gross Beta Monthly

& 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.

EXPOSURE: INGESTION 7 TOTAL SAMPLING STATIONS Sample Media, Number And Approximate Location of Sample K Routine Sampling Nominal Analysis Minimum Stations Mode Collection Type Analysis

- 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 Veaetation - 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 durng Isotopic As collected 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 Isoopicon Is c

- . edible J- Same or analogous species In area not Influenced by STP. portions

- Same or analogous species In the MCR. i Agricultural Products Grab At time of Gamma- As collected

• havestIsotopic

-harvest 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.

S TP Nuclear Operating Company 6 -12

RadiologicalEnvironmental OperalingReport Table 2 Sample Media and Location Description AI AIRBORNE RADIOIODINE -L5 CABBAGE AP -AIRBORNE PARTICULATE L6 COLL RDGREENS-Bf1RESIDENT DABBLER DUCK-- M BEEF MEAT.;

B2 RESIDENT DIVER'DUCK M2 POULTRY MEAT, B3 MIGRATORY-DABBLER-DUC. M3, WILD SWINE 1B4 MIGRATORY DIVER DUCK M4' DOMESTIC SWINE

'B5 GOOSE M5 EGGS B6'- DOVE M6 GAME DEER B. .QUAIL M7 ALLIGA

-B8 PIGEON,'. t r i ' M8 RABBIT,,

CC CRUSTACEAN CROY 'OYSTER'..

CS CRUSTACEAN SHRIMP..' - -SOSOIL DR fDIRECT RADIATION;, S1 SEDIMENT - SHORELINE-F1'- l FISH

-. PISCIVOROUS 5 - . .'9 ' .~ --

-- S2 SEDIMENT.-BOTTOMa=-a

- .= ., ~- -

FISH- CRUSTACEAN & iNSECT- - -;

F2 PASTUREGRS

- FEEDERS - 4-----

F3 FISH "PLANTIVORES & DETRITUS. W DR N WTER - .'-

FEEDERS .--

LI BANANA LEAVES WGGROUND WAR L2 CANA LEAVES WS SURFACE.WATER .-

L4 TURNIP l~~I GREENS G E N L ;-t0. WW

-f--  ;;4~,,nRELIEF WELL-WATER

. .-<->f=<;AI

6 -13 STP Nuclear Operating Company

_6-2OO0 3. En vironnme ntal1 R ep ort Table 2 Sample Media and Location Description MEDIA CODE STATION i,.VECTOR: LOCATION DESCRIPTION

- CODE (Apprximate)

DR AlAPVB VP SO 001 ~1miieN FM21 R002 imileNNE FM 52 1 DR~ 003,- imileNE- FMS21, DR.004 4A !ril'N~~ FM 521 DR005 mieE 1 STPVisitor Center onFM 521 DR Al AP SO 06 3.5 fiiilesESE -Site near, Reservoir Makeup PumigFclt DR 00 1SilsE MCR Dike DR 008 0.5iijeSE MCRIDik DR ~ 009_,. ~~0.25inile S ~kMCR Dk DR ~ 010 MO.25 i1e&SSW -MCR:Dike~

DR 011 0.5 16~eSW `MCR Dike.

R02 1.5 mile WSWj ;MCR~Dike.,z,,

R '1 u-.mileW F 521 014:-l4 A1.5mfile WNW -FM52l1-6,.e---

DR AlAP.VBSO VP *'-015 Miie M 521,_

DAlIAP VBSOV -ilfilile NNW" FM 521 DR-07 6.5 mie Bucky-M16 DRAIP .018 16.5ieNNEc CelaniesePlant-FM[3057.

DR K 19 5.5 milesNE Ž~ FM2668 DR 020 -5 miesEE FM2668&FM2078~'_,,-__

DR021 5ieE. ~FM 521&FM2668 DR'-022,7 mslesE0_2 quistar Chemiical Plant DR 23

• 1 ei1s >Itreto fN 521 and FM 24 oFM MCR-STP Main Cooling Reservoir STP-South Texas Project Media codes typed in bold satisfy collection requirements described in Table 1.

• Control Station STP Nuclear Operating Company 6 -14

Radio logical Environmental tiraug Report ITable 2 Sample Media and Location Description MEDIA CODE STATION VETRLCIODSRPIN

____________CODE (Apiomae DR .024 4 Miles SSE~ MCR Dike DR 054mieS MCRI~ike~

DR 026 4fmiles SSW_.- MCR Dike DR .~.027, 2.5Mifle SW~:i MCR Dike DR:02 5 Miles .WSW FM 1095 & lisRa DR S0 02 .5mileks W -I FM 1095 DR00 6iles WNW-- Tres Palacios Oas FM 285-3 DR -,031 .5miesNWZ ison reek oad-DR ~032 - ;3.5 rnilesNNW FM 1468 DR AlAPSO 03 14 miles NNE Microwave Tower at end of Kilowatt Road in BayC DR 34 7.5mles ENE Wadsworth Water Suppl Pum Station>

DR AI AP SO ->035 8.5 mil es SSE Magrd DR 036 9 ie S< olge Port DR Al AP VB VP SO 037* 10 miles WS Palacios CP&L Substation-DR 038~ _10.5 ml, NW~ CP&L Substation on TX71narBesg DROT P 39 9 mfles NW rTX 35 under High Voltage Power lines near DR040 `4.5 miles SW, Citrus rv .

DR 041 2.0 miiiis-ESE MCR Dike -

DR042 85mlsNW .- FM 459 at Tidhve nermnedite School DR .. 43 4.5 mifes SE Sie bonarit blowdownf outlet Ws 209 2 Miles ESE Kelly Lake WD 10 n Site. Appovddrikn water supplyfo T WSS12113.5 miles S- Sie, EBranch Little Robbins Slouigh MCR-STP Main Cooling Reservoir STP-South Texas Project Media codes typed in bold satisfy collection requi~rements described in Table 1.

• Control Station 6-15 STP Nuclear Operating Company

-2003Enviro'nmental Report Table 2 Sample Media and.LoCation Description MEDIA CODE STATION iECTOR LOCATION DESCRIPTION CODE - (Appoiae Ws Si 212 _4 mile'S~ Little Robbins Slough WSS 213' 4mniuies EE; West BranchColdrado River FI (12,or 3) CC: ~ 24 2.5 -miles SE MCR at Makeup Water Discharge S2 , 250 ieS MCR a-t Circulating Water Dischare WS S2 ~ 216` -3.milesSSE MCR at blowdown structure-F(19 2,or 3) CC CS QY 222 >0mls WtMagoda a Wetban of Colorado Rver dwtreamoST WS S(l or 2)22 5-6mieS arss frmchainel marke #22 WD 228*  : 14 miles NNE_ LieTulle Park public water supply 1 Drainage ditch north of the reservoir thatlempties into:

WsSi 229 :2 3 miles ESE Colorado River upstream of the reservoir makeup,~-

___ ____ ___ ___ pumping facility S~i Colorado River at point where drainage ditch (#229)

~

or 2 230 35Smiles ESE emteinot SCI 2WS 23 Y 4mileSE - Colorado River where MCR blowdown discharge or, -~channel emptiies into it.

WG235 `3 8mile S:I Well B-3 directly south fromn MCR B8 236 N/ASTP Protected Area.

WS'___ 237 3.7 miles SSE Blowdown discharge channel from MCR 5(1 or 2) WS242 `>10milesN- Colorado River where it intersects Highway 35 WS * ~ -~Colorado River upstream of Bay City Dam at the, 24 ne ~ Lower Colorado River Authority pumping station-Ws -247 <1mile E~ Essential Cooling Pond F(1,2, or 3) 249* dNA ontrol sample purchased from a local retailer SO 250 -0.75 mile NWiz Sewag sludge land farmigae (1,2,or 3) CC 2300  :~5:i __STP Main Cooling Reservoir, WW701 >4ilesi-z- MCR ReliefWell#4 ---

WS QO N/AJ~~IQuarterly composite of station #227 and/or altermate WS Q02N/A~~ Quarterly composite of station #243'and/or altermate:

MCR-STP Main Cooling Reservoir STP-South Texas Project Media codes typed in bold satisfy collection requirements described in Table 1.

• Control Station STP Nuclear Operating Company 6 -16

I I RadiologicalEnvironmental 3 7raung i Report 2003 Radiological Environmental Monitoring Program Analysis Summary An analysis summary for all of the required samples is given in Table 3. The table has been formatted to resemble a United States Nuclear Regulatory Commission industry standard. Modifications have been made for the sole purpose of reading ease. Only positive values are given in this table.

Media types are printed at the top left of each table, and the units of measurement are printed at the top right. The first column lists the type of radioactivity or specific radionuclide for which each sample was analyzed. The second column gives the total number of analyses performed and the total number of non-routine analyses for each indicated nuclide. (A non-routine measurement is a sample whose measured activity is greater than the reporting levels for Radioactivity Concentrations in Environmental Samples.)

The "LOWER LIMIT OF DETECTION" column lists the normal measurement sensitivities achieved which were more sensitive than specified by the Nuclear Regulatory Commission.

A set of statistical parameters is listed for each radionuclide in the remaining columns. The parameters contain information from the indicator locations, the location having the highest annual mean, 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 column. For each of these groups of data, the following is calculated:

m The mean value of positive real values.

I The number of positive real measurements / the total number of analyses.

• The lowest and highest values for the analysis.

The data placed in the table are from the samples listed in Table 1. Additional thermoluminescent dosimeters were utilized each quarter for quality purposes. The minimum number of other analyses required by Table 1 were supplemented in 2003 by four surface water samples, two groundwater samples, one drinking water sample, four rainwater samples and one shoreline sediment sample. Fish, vegetation, and wildlife samples vary in number according to availability but normally exceeded the minimum number required by Table 1.

TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Direct Radiation Units: Milliroentgen/Standard Quarter ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMIT OF MEAN (f) LOCATION MEAN (f) l MEAN (f)'

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Gamma 174/0 _ 1.4E+01 ( 165/ 165) I mile W 1.8E+01 (5/5) 1.6E+0I ( 9/ 9) l(.2E+01 - 2.OE+- IO) (#013) (1.7E+01 -2.0E1+01) (1.4E+01- 1.8E+01)

• (0 Number of positive measurements / total measurements at specified locations.

TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Airborne Radioiodine Units: Picocuries per Cubic Meter ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMIT OF MEAN (0* LOCATION MEAN (f)- MEAN (0' MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Iodine-131 259/0 8.5E-03 -- ( 0/207) -- ( 0/ 52)

• (f) Number ofpositive measurements / total measurements at specified locations.

STP Nuclear Operating Company 6 -17

_-2003 EnvironmentalReport TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Airborne Particulate - Units: Picocuries per Cubic Meter ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS - LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE INONROUTINE, LIMIT OF MEAN (f)* LOCATION MEAN (f)* MEAN (f)'

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE GrossBeta 258/0 1.5E-03 2.3E-02(206/206) 14 milesNNE 2.4E-02( 52/ 52) 2.3E-02( 52/ 52) 7.4E 6.1E-02) - (#033) (7.4E 5.7E-02) (7.5E 6.4E-02)

Cesium-134 20/0 3.4E-03 - ( Of16) _ ( 0/

Of 4)

Cesium-137 20/0 3.0E-04 - ( 0/ 16) ( Of 0/ 4)

Manganese-54 20/0 3.3E-04 - 0/16) - ( Of 4) 0/

Iron-59 20/0 I.SE-04 _- ( 0/l6) _ -( 0/ f- 4)

Cobalt-58 20/0 4.8E-04 . ( 01 16)  : ( O 0/ 4)

Cobalt-60 20/ 0 3.4E-04 ( 0/16)

Of - -( 01 4)

Zinc-65 20/0 7.7E-04 _. ( 0/16) _ _ _ ( 0/ O 4)

Zirconium-95 20/0 9.2E-04 _ ( 0/16) 0 f-( 4)

Niobium-95 20/0 8.4E-04 -( 0/116) ( 0/O f- 4)

Lanthanum-140 20/0 4.4E-03 -- ( 0/16) ( 0/

O f- 4)

Barium-140 ' --

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

TABLE 3

- 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Surface Water Units: PicoCuries per Kilogram ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS - LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE INONROUTINE LIMIT OF MEAN (f)* LOCATION MEAN (f)- MEAN (f)*

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Hydrogen-3 12/0 1.7E+02 9.9E03( 4/ 8) 3milesSSE 9.9E03( 4/ 4) - 0 O( 4)

(8.1 E03 - 1.1 E04) (#216) (8.1E03 - 1.1E04)

Iodine-131 40/0 4.5E+00 -( 0/ 27) _- -( 0/ 13)

Cesium-134 40/0 1.7E+00 0/27):

O-( .- ( 0/13)

Cesium-137 40/0 1.6E+00 - ( 0/27) - - - ( 0/13)

Manganese-54 40/0 1.5E+00 - ( 0/27) -( 0O f 13)

Iron-59 40/0 4.9E+00 - ( 0/27) ( 0O f 13)

Cobalt-58 40/ 0 1.6E+00 ( 0/27) -_ - ( 0/13)

Cobalt-60 40/0 1.6E+00 (0 1 27) . -(0/13) O f Zinc-65 ' 40/0 3.3E+00 '-( 0/27) i - - -( 013)

Zirconium-95 - 40/0 2.9E+00 - ( 0/27)- -- -( 0/ 13)

Niobium-95 40/0 1.9E+00 '-(

0127) - , - ( 0/13)

Lanthanum-140 40/0 3.8E+00 - 0 27)

O( - ( 0 f- 13)

Barium-140 ____maumn totalmeasurementsatspecifiedlocations.'mr

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

STP Nuclear Operating Company 6 -18

II RadiologicallEnvironmental OfPeratingReport TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Drinking Water Units: PicoCuries per Kilogram ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE INONROUTINE LIMIT OF MEAN (O- LOCATION MEAN (f). MEAN (f)'

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE GrossBeta 2510 2.0E+00 3.4E00( 91 13) 14milesNNE 3.4E00( 121 12) 3.4E00( 12/ 12)

(2.5EOO - 4.6E00) (#228) (2.4E00 - 4.4E00) (2.4E00 - 4.4E00)

Hydrogen-3 8/0 2.6E+02 -( 0/ 4) _ _ _ ( 01 4)

Iodine-131 25/0 3.3E+00 _ ( 0/13) _ _ ( 0/ 12)

Cesium-134 25/0 2.OE+00 _ ( 0/ 13) _ _ ( 0/12)

Cesium-137 25/0 I.8E+00 _ ( 0/13) _ _ ( 0/ 12)

Manganese-54 25/0 1.8E+00 _ ( 0/ 13) _ _ ( 0/ 12)

Iron-59 25/0 5.OE+00 _ ( 0/ 13) _ _ _ ( 0/ 12)

Cobalt-58 25/0 1.8E+00 _ ( 0/ 13) _ _ _ ( 0/ 12)

Cobalt-60 2510 1.9E+00 _ ( 0/13) --- ( 0 12)

Zinc-65 25/0 3.8E+00 _ ( 01 13) _ _ _ ( 0 12)

Zirconium-95 25/0 3.2E+00 _ ( 0/ 13) --- -( 0 12)

Niobium-95 25/0 2.IE+00 _ ( 0/ 13) _ ( 0/ 12)

Lanthanum-140 25/0 3.2E+00 _ ( 0/ 13) _ _ ( 0/ 12)

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

TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Sediment-Shoreline Units: Picocuries per Kilogram dry weight ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITHI HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMITOF MEAN (fI LOCATION MEAN (f) MEAN (f)-

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 5/0 2.0E+01 - ( 0/ 3) -_ 0/ 2)

Cesium-137 510 1.2E+01 2.0E01( I/ 3) 6 miles SE 2.OEO1( I/ 3) ( 01 2)

(2.OEO I - 2.OEO ) (#227) (2.OEO I - 2.OEO I Manganese-54 510 1.6E+01 -( 0/ 3) _ _ _ ( 0/ 2)

Iron-59 510 7.9E+0I _ ( 0/ 3) _ _ ( 0/ 2)

Cobalt-58 510 I.9E+0I _ ( 0/ 3) _ _ _ ( 01 2)

Cobalt-60 510 I.9E+0I _- ( 0/ 3) _ ( 0/ 2)

Zinc-65 5/0 4.OE+01 -( 0/ 3) _ _ ( 0/ 2)

Zirconium-95 5/0 4.IE+01 -( 0/ 3) _ _ ( 01 2)

Niobium-95 5/0 4.OE+01 _ ( 0/ 3) _. _ ( 0/ 2)

Lanthanun-140 5/0 1.8E+02 -( 0/ 3) _ _ ( 0/ 2)

Barium-140 (f) Number o0positive measurements I total measurements at specifed Iocations.

STP Nuclear Operating Company 6 -19

-w2003Environmental[Report TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Rain Water _ - Units: PicoCuries per Kilogram ANALYSIS TOTALANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE INONROUTINE LIMIT OF MEAN (1)* LOCATION MEAN (f)- MEAN (ft' MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Hydrogen-3 310 2.5E+02 -- ( O/ 3) . _ no samples Iodine-131 410 4.5E+00 _ ( 01 4) . . no samples Cesium-134 410 I.9E+00 -( 01 4) . no samples Ccsium-137 410 1.8E+00 - ( 0t 4) , . - nosamples Manganese-54 4/0 1.7E+00 (-(-01 4) - _ nosamples Iron-59 410 4.7E+00 -( 01 4) - nosamples Cobalt-58 410 1.8E+00 -( 01 4)  ; no samples Cobalt-60 4/0 1.8E+00 - 0 4)

O( no samples Zinc-65 4/0 3.6E+00 -( 0 4) . no samples Zirconium-95 4/0 3.3E+00 -( 01 4) - no samples Niobium-95 4/0 2.OE+00 -( 01 4) . - no samples Lanthanum-140 4/0 3.7E+00 -( 01 4) . nosamples Barium-140  : i  :

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

TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Ground Water (On site test well) Units: PicoCuries per Kilogram ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCAnON WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE INONROUTINE LIMITOF MEAN (f) , LOCATION MEAN (f)* MEAN (f)

MEASUREMENTS DETECTION RANGE -INFORMATION RANGE RANGE Hydrogen-3 6/0 2.6E+02 1.2E03 ( 6/ 6)- 3.8 miles S 12E03( 6/ 6) no samples

(.0E02 - l.8E03) (#235) (8.0E02 -1.8E03)

Iodine-131 6/0 4.1E+00 -( 01 6) - nosamples Cesium-134 6/0 1.9E+00 -( 0l 6) . _ nosamples Cesium-137 6/0 1.7E+O0 -( 0/-6) - _ no samples Manganese-54 610 1.7E+00 -( 0/ 6)  : . no samples Iron-59 610 4.9E+00 -( 01 6) . . no samples Cobalt-58 - 6/0 1.7E+00 - 0 O( 6) _ no samples Cobalt-60 6/0 1.7E+00 - O(

0 6) - no samples Zinc-65 6/0 3.5E+00 -( 0l 6) - no samples Zirconium-95 6/0 3.1E+00 - ( 0/,6))% ' - no samples Niobium-95 6/0 2.OE+00 _ ( 0/ 6) ._ no samples Lanthanum-140 - 6/0 3.5E+00 _ ( 01 6) - . _ no samples Barium-140 _ __

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

STP Nuclear Operating Company 6 -20

I I RadiologicalEnvironmental-OperautigReport TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Mediumn: Sediment-Bottom _ Units: Picocuries per Kilogram dry weight ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WIMh HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMIT OF MEAN (1)* LOCATION MEAN (f)- MEAN (f)

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 2/ 0 2.9E+01 - ( 0/ 2) _ no samples Cesium- 13 7 210 2.9E+0I1 4.0E01 ( I/ 2) I mile SW 4.0E01( I / 2) no samples (4.0E01 - 4.0E01) (#215) (4.OEOI- 4.OEO I Manganese-54 2V0 2.2E+01 _ ( 0/ 2) _. no samples Iron-59 2V0 8.IE+01 _ ( 0/ 2) _. no samples Cobalt-58 2/0 2.4E+OlI. ( 0/ 2) __ nosamples Cobalt-60 2/0 I.9E+01 2.5E01 ( 2/ 2) 1 mile SW 2.5E01 ( 2/ 2) no samples (2.2E01- 2.9E01 ) (#215) (2.2E01 - 2.9E01 )

Zinc-65 2/0 4.9E1+0 1 _ ( 01 2) _ _ no samples Zirconium-95 2/0 5.1E+01 __ ( 0/ 2) no samples Niobiuma-95 2/0 4.4E+01 -( 0/ 2) _ _. nosamples Lanthanum-140 2/0 1.3E+02 -( 0/ 2) _ no samples Barium -140 _ _ ___

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

TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Banana Leaves Units: Picocuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMITOF MEAN (f LOCATION MEAN (0- MEAN (f)

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Iodine-131 220 1.2E+01 _ ( 0/ 15) _ _ _. ( 0/ 7)

Cesium-134 22/0 1.6E+00 - ( /I15) -- ( 0/ 7)

Cesium-137 22/0 1.3E+00 ( 0/ 15) ._ _

-( 0/ 7)

Manganese-54 22/0 1.5E+00 ( 01 15) ._ _ _-( 01 7)

Iron-59 22/0 76E+00 _ ( 01 15) ._ _ ( 0/ 7)

Cobalt-58 22/0 1.8E+00 - ( 0/15) __ _ ( 0/ 7)

Cobalt-60 22V0 2.5E+00 _ j 0115) _ _ ( 0/ 7)

Zinc-65 22/0 4.7E+00 ( 0/ 15) ._ _ _.( 0/ 7)

Zirronium-95 22V0 3.2E4+00 __ ( 0/15) -( 0/ 7)

Niobium-95 2210 2.3E+00 __ ( 0/I1) _-- ( 0/ 7)

Lanthanum. 140 22V0 4.4E+00 __ ( 0115) _ _. _- ( 0/ 7)

Barium-140

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

STP Nuclear Operating Company 6 -21

a2003 EnvironmentalReport TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Cana Leaves _ _ _-___ ._Units: Picocuries per Kilogram wet weight ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE tNONROUTINE LIMITOF MEAN (f)* LOCATION MEAN (0, MEAN (f' MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Iodine-131 9/0 9.5E+00 _ (0,6), - , ,. -- . -. - ( 0/ 3)

Cesium-134 9/0 2.8E+00 *_ ( 0t6) , , - __ ( o/ 3)

Cesium-137 9/0 2.3E+00 -(0t 6) _ - __( 0/ 3)

Manganese-54 9/0 2.6E+O0 - ( 0/6), _ - ( 0/ 3)

Iron-59 9/0 1.2E+0I -(0/.6) - _ . -( 0/3)

Cobalt-58 9/0 2.9E+-0 -( 0t 6) - - -( 0tf. 3)

Cobalt-60 9/0 4.5E+00 -( 0/ 6)

• _ ( 0/ 3)

Zinc-65 9/0 8.0E+00 -(0/ 6) _ - (0/ Of 3)

Zirconium-95 9/0 4.9E+00 -( 0/ 6) - - - ( 0/ 3)

Niobium-95 9/0 3.4E4-00 ( 0/ 6) ,, . - ( 0/ 3)

Lanthanum-140 9/0 4.6E+00 _ ( 0/ 6) , ,, - _ 0/ 3)

Barium-140  ; .

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

- ~.TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Collard Greens _ ._,_._-,___-___Units:Picocuries per Kilogram wet weight ANALYSIS OTAL ANALYSE' LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMIT OF MEAN (f) -, LOCATION MEAN (f) MEAN (f)'

IMEASUREMENTS DETECTION RANGE - INFORMATION RANGE RANGE Iodine-131 3/0 I.4E+0I -- (j0/ 2) -- __ _ ( 0/ 1)

Cesium-134 3/0 92E-01 -.-( ,0/ 2) -- --- -( 0/ 1)

Cesium-137 310 7.7E-01 --- ( °2) Of 1)_17 Manganesc-54 3/0 8.8E-01 _. (.0! 2) - , -- 0/ 1)

Of(

Iron-59 3/0 4.9E+00 _(0/ 2) - -* _--(

- 0/1)

Cobalt-58 3/0 I.IE+00 -- ( 0/2) ,. ,. - -- (0/ 1)

Cobalt-60 3/0 1.5E+00 (,0/ 2) -. - _-(0° 1)

Zinc-65 3/0 2.7E+00 _ (0/ 2) --- -- -- 0./ _1)

Zirconium-95 3/0 2.0E+O0 __ ( 0/12)  ; - - . ( 0/ 1)

Niobium-95 3/0 1.6E+00 - ( 01 2) _ - -- , ( 0/ 1)

Lanthanum-140 3/0 3.7E+00 --- (0 2) , _ _ ( 0/ 1)

Barium-140 _ , ., . .

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

STP Nuclear Operating Company 6 -22

IN RadiologicalEnvironmental 3erating Report TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS SUIMIARY Medium: Piscivorous - Fishh Units: Picocuries er Kilogram wet weight ANALYSIS TOTALANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHESTANNUAL MEAN CONTROL LOCATIONS TYPE 'NONROUTINE LIMIT OF MEAN (0- LOCATION MEAN (f)- MEAN (t)-

MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 610 2.4E+01 __ ( 01 4) _ _ ( 01 2)

Cesium-137 6/0 2.3E+01 _ ( 0/ 4) -- ( 0/ 2)

Manganese-54 6/0 2.3E+01 -- ( 0/ 4) _ _ ( 0/ 2)

Iron-59 6/0 8.0E+01 ( 0/ 4) _ -- ( 0/2)

Cobalt-58 610 25E+01 ( 0 4) _ _ ( 0/2)

Cobalt-60 610 2.7E+0I -( 0 4) _ _ ( 0/ 2)

Zinc-65 6/0 5.3E+01 -( 0/ 4) _ -( 01 2)

Zirconium-95 6/0 4.6E+01 __ ( 0/ 4) _ -( 01 2)

Niobium-95 6/ 0 3.2E+01 __ ( 0/ 4) _ _ _ ( 0/ 2)

Lanthanum-140 6/0 8.3E+01 ( 0/ 4) _ ( 0/ 2)

Barium-140

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

TABLE 3 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANALYSIS

SUMMARY

Medium: Crustacean Shrimp Units: Picocuries r Kilogram wet weight ANALYSIS TOTAL ANALYSES LOWER INDICATOR LOCATIONS LOCATION WITH HIGHEST ANNUAL MEAN CONTROL LOCATIONS TYPE /NONROUTINE LIMITOF MEAN (f) LOCATION MEAN (f MEANtO MEASUREMENTS DETECTION RANGE INFORMATION RANGE RANGE Cesium-134 7/0 3.1E+01 ( 0/ 4) _ ( 0/3)

Cesium-137 7/0 2.8E+01 _ ( 0/ 4) _ _ ( 0/ 3)

Manganese-54 7/0 2.7E+01 -( 01 4) _ _ _ ( 0/ 3)

Iron-59 7/0 8.3E+01 -( 0/ 4) _ _ ( 0/ 3)

Cobalt-58 7/0 2.7E+01 -( 0/ 4) _ _ ( 0/ 3)

Cobalt-60 710 3.0E+01 _ ( 0/ 4) _ _ ( 0/ 3)

Zinc-65 7/0 6.0E+01 _ ( 01 4) _ _ _ ( 01 3)

Zirconium-95 7/0 5.0E+01 _ ( 0/ 4) _ ( 0/ 3)

Niobium-95 7/0 3.2E+0I _ ( 0! 4) _ ( 01 3)

Lanthanum-140 7/0 5.9E+01 -( 0/ 4) _ _ ( 0/ 3)

Barium-140

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

STP Nuclear Operating Company 6 -23

11 -