U-602575, 1995 Radiological Environ Monitoring Rept

1995 Radiological Environ Monitoring Rept

ML20108B721
Person / Time
Site:	Clinton
Issue date:	12/31/1995
From:	Lyon M ILLINOIS POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L30-96(04-26)LP, L30-96(4-26)LP, U-602575, NUDOCS 9605060022
Download: ML20108B721 (168)

Text

lilanois Power Company Clinton Power Station P.O. Box 678 Clinton. IL 61727 Tel 217 935-8881 ILLINSIS PGWER Es'0 9l[.26 y 2

1 A.120 April 26, 1996 Docket No. 50-461 10CFR50,AppI Document Control Desk Nuclear Regulatory Commission Washington, D.C. 20555

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Clinton Power Station e

Annual Radiological Environmental Operating Report

Dear Sir:

Illinois Power is submitting the 1995 Annual Radiological Environmental Operating Report for Clinton Power Station. This submittalis provided in accordance with the requirements of Section 5.6.2 of Clinton Power Station Technical Specifications.

Sincerely yours, n

Michael W. Lyo Director-Licensing WSI/csm Attachment cc:

NRC Clinton Licensing Project Manager NRC Resident Office, V-690 Regional Administrator, Region III, USNRC Illinois Department ofNuclear Safety Or003 rgg5 I

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1995 RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT FOR THE CLINTON POWER STATION Prepared by Radiological Programs Group Plant Radiation Protection and Chemistry Department l

i May 1, 1996

TABLE OF CONTENTS ITEM PAGE LIST OF TABLES iii LIST OF FIGURES iv I.

EXECUTIVE

SUMMARY

1 II.

INTRODUCTION 3

A.

Characteristics of Radiation 3

B.

Sources of Radiation Exposure 5

C.

Description of the Clinton Power Station 12 D.

Nuclear Reactor Operations 13 i

E.

Containment of Radioactivity 17 F.

Sources of Radioactive Effluents 18 G.

Radioactive Waste Processing 19 III. RADIOIDGICAL ENVIRONMENTAL MON.TTORING PROGRAM (REMP) 21 A.

Program Description 21 B.

Direct Radiation Monitoring 43 C.

Atmospheric Monitoring 47 D.

Aquatic Monitoring 53 Fish 53 Shoreline sediments 54 Bottom Sediments 55 Aquatic Vegetation (Periphyton) 55 E.

Terrestrial Monitoring 57 j

Milk 57 Grass 58 Vegetables 58 Meat 61 Soil 61 F.

Water Monitoring 62 Drinking Water 62 Surface Water 65 Well Water 66 G.

Quality Assurance Program 70 H.

Changes to the REMP During 1995 70 IV.

ANNUAL LAND USE CENSUS 73 A.

Annual Land Use Census 73 Summary of Changes Identified in 1995 Annual Land Use Census 75 V.

LIST OF REFERENCES 77 i

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TABLE OF CONTENTS (Cont'd)

ITEM

.PAGE VI.

APPENDICES l

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A.

Exceptions to the REMP During 1995 A-1 B.

REMP Sample Collection and Analysis Methods B-1 C.

Glossary C-1 1

D.

CPS Radiological Environmental Monitoring Quality Control check Results 1995 D-1 E.

CPS Radiological Environmental Monitoring Results during 1995 E-1 l

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LIST OF TABLES TABLE SUBJECT PAGE i

1 Common Sources of Radiation 9

2 1995 Radionuclide Composition of CPS Effluents 19 3

Clinton Power Station Sample Codes 35 4

REMP Sample Locations 37 5

Average Quarterly TLD Results 47 6

Average Gross Beta Concentrations in Air Particulates 49 7

Average Monthly Gross Beta Concentrations in Air Particulates 50 8

Average Gross Beta Concentrations in Drinking, Surface and Well Water 69 l

9 1995 Annual Land Use Census 73 8

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iii

i LIST OF FIGURES FIGURE SUBJECT PAGE 1

Dose Contributions to the U. S. Population from Principal Sources of Radiation Exposure 9

2 Clinton Power Station Basic Plant Schematic 15 3

Potential Exposure Pathways of Man Due to Releases of Radioactive Material to the Environment 23 4

REMP Sample Locations within 1 Mile 27 5

REMP Sample Locations from 1 - 2 Miles 29 6

REMP Sample Locations from 2 - 5 Miles 31 7

REMP Sample Locations Greater than 5 Miles 33 8

Direct Radiation Comparison 45 9

Air Particulate Gross Beta Activity Comparison 51 10 Strontium-90 Activity in Milk 59 11 Drinking Water Gross Beta Activity Comparison 63 12 Surface Water Gross Beta Activity Comparison 67 1

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.l EXECUTIVE

SUMMARY

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EXECUTIVE

SUMMARY

i This report describes the Annual Radiological Environmental Monitoring Program (REMP) conducted near the Clinton Power Station (CPS) during the 1995 calendar year. The REMP was performed as required by the CPS Operating 1.icense issued by the United States Nuclear Regulatory Commission. The objective of the REMP is to assess any radiological impact upon the surrounding environment due to the operation of the Clinton Power Station.

During 1995, over 1,800 environmental samples were collected. These samples represented direct radiation; atmospheric, terrestrial, and aquatic environments; and Clinton Lake surface water and public drinking water supplies. More than 2300 analyses were performed on these environmental samples.

Results of the analyses showud natural radioactivity and radioactivity attributed to other 4

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historical nuclear events. The radioactivity levels detected were similar to the preoperational levels. The CPS Preoperational REMP Report documented natural background radionuclides and man-made radioactivity in the environment surrounding CPS prior to plant operations.

l Radiological environmental measurements taken during 1995 demonstrated that operational and engineered controls on the radioactive effluents released from the plant functioned as designed. Any radioactivity that was detected in the environment at indicator locations was appropriately compared with both the measurements at controllocations (sample locations not affected by station operations) and preoperational results.

i There were no radioactive liquid.eleases during 1995. Releases of gaseous radioactive materials were accurately measured in plant effluents. There were no gaseous releases that came close to approaching the limits specified in the CPS Offsite Dcse Calculation Manual (ODCM). The highest calculated total body dose received by a member of the public due to the i

release of radioactive materials in gaseous effluents from Clinton Power Station was 0.00313 mrem.

All comparisons among operational data and preoperational data showed that the operation of Clinton Power Station had no measurable effect upon the environmentin 1995.

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INTRODUCTION l

II.

INTRODUCTION 1

The Radiological Environmental Monitoring Program (REMP) at Clinton Power Station (CPS) is designed to monitor the environment surrounding the plant for any radioactive material that may be released by CPS as a result ofplant operations.

The primary concern is what

impact, if

any, the radioactive materials released from CPS have on the generalpublic. This report isprepared in a way that is useful to a

specialized scientific community.

However, this introduction, the explanations in later sections, and minimal use of technical terms are all designed to make this report understandable and useful to those with no background in environmental monitoring.

A.

CIIARACTERISTICS OF RADIATION Atoms whose nuclei contain an excess of energy are. called radioactive atoms.

They release this excess energy by expelling electromagnetic or particulate radiation from their atomic centers to become stable (non-radioactive).

This process is called " radioactive decay".

X-rays and gamma rays are examples of electromagnetic radiation and are similar in many ways to visible light, microwaves and radio-waves.

Particulate radiation may be either electrically charged such as alpha and beta particles, or has no charge, like neutrons.

The term " half-life" refers to the time required for half of a given amount of a radionuclide to decay.

Some radionuclides have a half-life as short as a fraction of a second, while others have a half-life as long as a million years.

Radionuclides may decay directly into stable elements or may undergo a series of decays which ultimately end up reaching a stable element.

Radionuclides are found in nature (e.g., radioactive uranium, thorium, carbon and potassium), and may also be produced artificially in accelerators and nuclear reactors (e.g., radioactive iodine, cesium and cobalt).

3

NATURALLY OCCURRING MAN-MADE RADIONUCLIDES RADIONUCLIDES Uranium Iodine Thorium Cesium Carbon Cobalt Potassium Strontium Lead Barium The activity of a radioactive source is the average number of nuclear disintegrations (decay) of the source per unit of time.

The unit of activity is called the curie.

A one curie radioactive source undergoes 2.2 trillion lisintegrations per minute, but in the realm of nuclear power plant effluents and environmental radioactivity, this is a

large unit.

Therefore, two fractional units, the microcurie and the picocurie, are more commonly used.

I curie (Ci) 2,220,000,000,000 disintegrations / minute

=

1 millicurie (mci) 2,220,000,000 disintegrations / minute

=

1 microcurie (pCi) 2,220,000 disin tegrations/ minute

=

I nanocurie (nCi) 2,220 disintegrations /minuto

=

1 picoenrie (pCl)

= 2.22 disintegrations / minute The microcurie (uci) is one millionth of a curie (C1) and represents 2.2 million decays per minute.

The picocurie (pci) is one millionth of a microcurie and represents 2.2 decays per minute.

Another way of comparing the pCi and the ci is by analogy with distances.

A picocurie would be the width of a pencil mark while a curie would be 100 trips around the earth.

Radioactivity is related to the half-life and the atomic mass of a radionuclide.

For example, Uranium-235 (U-235) with a half-life of 704 million years requires about 462,400 grams to obtain ari activity of one curie.

But iodine-131 (I-131) with a half-life of 8.04 days only requires about 0.000008 grams to produce an activity of one curie.

Any mechanism that can supply the energy necessary to ionize an atom, break a chemical bond, or alter the chemistry of a living cell are capable of producing biological damage.

Electromagnetic and particulate radiation can produce cellular damage in any of these ways.

In assessing the biological effects of radiation, 4

m.

.the - type,

energy, and amount of radiation must be considered.

External total body radiation involves exposure of all I

organs.

-Most background exposures are of this form.

When radioactive.

elements enter the body through inhalation or ingestion, their distribution may not be

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uniform.

TARGET TISSUE NUCLIDE Bone Strontium-90 Kidney.

Uranium-235 Thyroid-Iodine-131

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Muscle and Liver Tissue Cesium-137 Gastrointestinal Tract Cobalt-60 For example, radioiodine selectively concentrates in the thyroid gland, wheroas radiocesium' collects in muscle and liver tissue, and radiostrontium collects in mineralized i

bone.

The total dose to organs : by a given radionuclide is also influenced by the quantity and the duration of i

time that the radionuclide remains in the body.

Owing to radioactive decay and human metabolism factors, some radionuclides stay in the body for very short times while others remain for years.

j The amount of radiation do'se that an individual receives is expressed in rem.

Since human exposure to radiation usually involves very small exposures, the millirem (mrem) is the unit most commonly used.

One millirem is one thousandth'of a rem.

I millirem = 0.001 Rem B.

SOURCES OF RADIATION EXPOSURE.

Many sources of radiation exposure exist.

The most common and least controllable source-is natural background radiation from cosmic rays and the earth which mankind has always lived with and always will.

Every second of our lives, over seven thousand atoms undergo radioactive decay in the body of the average adult.

5

1 Radioactive elements have always been a part of our planet and everything that has come from the earth, including our own bodies is, therefore, naturally radioactive.

Natural Radionuclides In The Earth's Crust Potassium-40 (K-40)

Radium-226 (Ra-226)

Uranium-238 (U-238)

Radon-222 (Rn-222)

Thorium-232 (Th-232)

Lead-204 (Pb-204)

Examples of radioactive materials found in the Earth's crust today consists of radionuclides such as potassium-40, uranium-238, thorium-232, radium-226 and radon-222.

These radionuclides are introduced into the water, soil and air by such natural processes as volcanic activity, weathering, erosion and radioactive decay.

Some of the naturally occurring radionuclides, such as radon, are a significant source of radiation exposure to the general public.

Radioactive radon is a chemically inert gas produced naturally in the ground as a part of the uranium and thorium decay series.

Radon continues to undergo radioactive

decay, producing new naturally radioactive materials called " radon daughters".

These new materials, which are solid particles, not gases, can stick to surfaces such as dust particles in the air.

Concentrations of radon in air are variable and are affected by concentrations of uranium and thorium in soil, as well as, altitude, soil porosity, temperature,

pressure, soil

moisture, rainfall, snow

cover, atmospheric conditions, and season.

Radon can move through cracks and openings into basements of buildings and become trapped in a small air volume indoors.

Thus, indoor radon concentrations are usually higher than those found outdoors.

Building materials such as cinder blocks and concrete are radon sources.

Radon can also be dissolved in well water and contribute to airborne radon in houses when released through showers or washing.

Dust containing radon daughter particles can be inhaled and deposited on the surface of an individual's lung.

Radon daughters emit high energy alpha radiation dose to the lung lining.

Table 1

shows the average annual effective dose due to radon.

About three hundred cosmic rays originating from outer space pass through each person every second.

6

Cosmic-Ray-Activated Radionuclides Beryllium-7 (Be-7)

Tritium (H-3)

Beryllium-10 (Be-10)

Sodium-22 (Na-22)

Carbon-14 (C-14)

Phosphorus-32 (P-32)

'1he interaction of cosmic rays with atoms in the earth's atmosphere produces radionuclides such as Beryllium-7, Beryllium-10, carbon-14,

tritium, and Sodium-22.

Portions of these radionuclides become deposited on land or in water while the remainder stay suspended in the atmosphere.

Consequently, there are natural radioactive materials in the

soil, water, air and building materials that contribute to radiation doses to the human body.

Natural drinking water contains trace amounts of uranium and radium; milk contains measurable amounts of potassium-40.

Sources of natural radiation and their average contributing radiation doses are summarized in Table 1.

Figure 1 graphically shows the percentage contribution from principal sources of radiation exposure to the general population of the United States.

Radiation exposure levels from natural radiation fluctuate with time and also can vary widely from location to location.

The average individual in the United States receives approximately three hundred mrem per year from natural sources.

In some areas of the country, the dose from natural radiation is significantly higher.

Residents of

Colorado, five thousand feet above sea level, receive additional dose due to the increase in cosmic and terrestrial radiation levels.

In fact, for every one thousand feet in elevation above sea level, an individual will receive an additional one mrem per year from cosmic radiation.

In several areas of the

world, high concentrations of mineral deposits result in natural background radiation levels of several thousand mrem per year.

In addition to natural background radiation, the average individual is exposed to radiation from a number of man-made sources.

The largest of these sources come from medical diagnosis:

X-rays, CAT-scans, fluoroscopic examinations and radio-pharmaceuticals.

Approximately 160 million people in the United States are exposed to medical or dental X-rays in any given year.

The annual dose to an individual from such irradiation averages 53 mrem.

7

I l

TABLE 1 COMMON SOUlt('ES Oli ItADIATION A. Average Annual Effective Dose Equivalent to the U.S. Population

1. Natural Sources mrem

a. Radon 200

b. Cosmic, Terrestrial,Intemal 100

2. Man-Made Sources

_ mrem

a. Medical X-ray Diagnosis 39 Nuclear Medicine 14

b. ConsumerProducts 10

c. Occupational 1

d. Miscellaneous Environmental

<1

e. Nuclear Fuel Cycle

<1 Approximate Total 360 NCRP87a PERCENT AGE OF CONIRIBUTlON Consaner Products (3%)

r uclear Medcine (4%)

Radm(55%)

NATURAL MAN,yADE X-ray Diagnosis (11%)

OTHER (<1%)

• Misc. Environmental Sources

• Nuclear Fuel Cycle

• Ocetpational t

cosrne, Terrestnal Internal (27%)

FIGURE 1: DOSE CONTRIBUTIONS TO THE U.S. POPULA TION FROM PRINCIPAL SOURCES OF RADIA TION EXPOSURE 9

l l

Smaller doses from man-made sources come from consumer products (e.g.,

television, smoke detectors, fertilizers), fallout from prior nuclear weapons tests, and production of nuclear power and its associated fuel cycle.

" Fallout" commonly refers to the radioactive debris that settles to the surface of the earth following the detonation of nuclear weapons.

Fallout is dispersed throughout the environment but can be washed down to the Earth's surface by rain or snow.

Radionuclides Found in Fallout Iodine-131 (I-131)

Strontium-90 (Sr-90)

Strontium-89 (Sr-89)

Cesium-137 (Cs-137)

There are approximately two hundred radionuclides prod' iced in the nuclear weapon detonation process; a

number of these are detected in fallout.

The radionuclides found in fallout that produce most of the fallout radiation exposures to man are iodine-131, strontium-89, strontium-90, and cesium-137.

l 1

l 11 1

C DESCRIPTION OF TIIE CLINTON POWER STATION The Clinton Power Station is located in Harp Township, l

DeWitt County, Illinois.

It is approximately six miles east'of Clinton, Illinois.

The

station, its V-shaped cooling

lake, and the surrounding Illinois Power Company-owned land encloses 14,_32 acres.

This includes the 4,895-acre, man-made cooling lake and about 90 acres of privately owned property.

The plant is sited on approximately 150 acres on the northern arm of the lake.

The cooling water i

discharge flume, which discharges to the eastern arm of the lake, occupies an additional 130 acres.

Although the nuclear

reactor, supporting equipment, and associated electrical generation and distribution equipment lie in Harp Township, portions of the 14,182 acres lie in

Wilson, Rutledge,

DeWitt, Creek, Nixon and Santa Anna Townships.

The cooling lake was formed by constructing an earthen dam near the confluence of Salt Creek and the North Fork of Salt Creek.

The resulting lake has an average depth of 15.6 feet, and includes an ultimate heat sink of about 590 acre feet.

The ultimate heat sink provides sufficient water volume and cooling capacity for approximately thirty days of operation without makeup water.

Through arrangements with the Illinois Department of Conservation, Clinton Lake and much of the area immediately adjacent to the lake are used for public recreation activities, including

swimming, boating, water-skiing, hunting and fishing.

Recreational facilities exist at Clinton Lake and accommodate up to 11,460 people per day during peak usage periods.

The outflow from Clinton Lake falls into Salt Creek and flows in a westerly direction for about 56 miles before joining the Sangamon River.

The Sangamon River drains into the Illinois River which enters the Mississippi River near Grafton, Illinois.

The nearest use of downstream water for drinking purposes is 242 river miles downstream of Clinton Lake at Alton, Illinois, as verified from the Illinois Environmental Protection Agency Public Water Service.

Although some farms in the Salt Creek drainage area downstream of Clinton Lake use irrigation, the irrigation water is drawn from wells, not from the waters of Salt Creek.

Approximately 810,000 individuals live within 50 miles of the Clinton Power Station.

Over half are located in the major metropolitan centers of Bloomington-Normal (located about 23 miles north northwest),

Champaign-Urbana (located about 31 miles east), Decatur (located about 22 12

N miles south southwest) and Springfield (located about 48 miles west southwest).

The nearest city is Clinton, the county seat of DeWitt County. The estimated population.of Clinton is about 8,000 people.

Outside of the urban areas, most of the land within 50 miles of the Clinton Power Station is used for farming.

The principal crops grown are corn and, soybeans.

D.

NUCLEAR REACTOR OPERATIONS The fuel of a nuclear reactor is made of the element uranium in the form of uranium oxide.

The fuel produces power by tne process called " fission".

In fission, the uranium atom absorbs a neutron and splits to produce fission products, heat, radiation and free neutrons.

The j

free neutrons travel in the reactor core and further absorption of neutrons by uranium permits the fission process to continue.

As the fission process continues, more fission products, radiation, heat and neutrons are l

produced and a sustained reaction occurs.

The heat produced is extracted from the fuel to produce steam that drives a turbine generator to produce electricity.

The fission products are predominantly radioactive.

They are unstable elements that emit radiation as they change from unstable to stable elements.

Neutrons that are not absorbed by the uranium fuel may be absorbed by stable 1

atoms in the materials that make up the components and structures of the reactor.

In such cases, stable atoms often become radioactive.

This process is called

" activation" and the radioactive atoms which result are called " activation products".

Fission Products Activation Products

)

4 Cesium-134 (Cs-134)

Cobalt-60 (Co-60)

Cesium-137 (Cs-137)

Manganese-54 (Mn-54)

Ruthenium-106 (Ru-106)

Iron-55 (Fe-55)

Barium-140 (Ba-140)

Iron-59 (Fe-59)

Cerium-144 (Ce-144)

Zinc-65 (Zn-65)

Strontium-89 (Sr-90)

Tritium (H-3)

The reactor at the Clinton Power Station is a boiling water reactor (BWR).

Figure 2 provides a basic plant schematic for the Clinton Power Station and shows the separation of the cooling water from plant systems.

In this type of reactor the fuel is formed into small ceramic pellets that are loaded into sealed fuel rods.

13

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CLINTON POWER PLANT BASIC PLANT SCHEMA TIC

The fuel rods are arranged in arrays called bundles that are supported within a massive steel reactor vessel.

The spaces between the fuel rods are filled with water.

The heat released during the fission of fuel atoms is transferred to the water surrounding the fuel rods.

A type of pump that contains no moving parts (a jet pump),

and recirculation pumps are used to force the water to circulate through the fuel bundles to assure even cooling of the fuel rods.

As the water absorbs heat from the fuel rods some of it is changed to steam.

The steam is used to drive a turbine which is coupled to a generator, thereby completing the conversion of the energy released during fission to electricity.

After the steam passes through the turbine it is condensed back to water and returned to the reactor vessel to repeat the process.

As the water circulates through the reactor pressure vessel, corrosion allows trace quantities of the component and structure surfaces to get into the water.

The corroded material also contains radioactive substances known as activated corrosion products.

Radioactive fission and activation products are normally confined to the primary system although small leaks from the primary system may occur.

E.

CONTAINMENT OF RADIOACTIVITY During operating conditions, essentially all radioactivity is contained within the first of several barriers that collectively prevent escape of radioactivity to the environment.

The fuel cladding (metal tubes) provides the first barrier.

The ceramic fuel pellets are sealed within zircaloy metal tubes.

There is a small gap between the fuel and the cladding where the noble gases and volatile nuclides collect.

The reactor pressure vessel and the steel piping of the primary coolant system provide the second barrier.

The reactor pressure vessel is a seventy-foot high vessel with steel walls ranging from four to seven inches thick which encase the reactor core.

The reactor pressure vessel and the steel piping provide containment for all radionuclides in the primary coolant.

The Containment Building provides the third barrier.

The Containment Building has steel-lined, four-foot-thick reinforced concrete walls which completely enclose the reactor pressure vessel and vital auxiliary equipment.

This structure provides a third line of defense against i

17

the-uncontrolled release of radioactive materials to the environment.

The massive concrete walls also serve - to absorb much of the radiation emitted during. reactor operation or from radioactive materials created during reactor operations.

F.

SOURCES OF RADIOACTIVE EFFLUENTS In an operating nuclear power plant, most of the fission products are retained within the fuel and fuel cladding.

However, the fuel manufacturing process leaves traces of uranium on, the exterior of the fuel tubes.

Fission

. products from the eventual fission of these traces may be released to the primary coolant.

Other small-amounts of radioactive fission products are able to diffuse or migrate through the fuel cladding and into the primary I

coolant.

Trace quantities of the corrosion products from i

component and structural surfaces that have been activated, also get into the primary coolant.

i Many soluble fission and activation products such as radioactive iodines, strontiums, cobalts and cesiums are removed by demineralizers in the -water purification systems.

The noble gas -fission products, activated atmospheric gases introduced with reactor feedwater, and some of the volatile fission products such as iodine and.

bromine, are carried from the reactor pressure vessel to the condenser with the steam.

The steam jet air ejectors or the condenser vacuum pump remove the gases-from the condenser and transfer them to the off-gas treatment system.

In the off-gas treatment system, the gases are held up by adsorption on specially treated charcoal beds to allow the radioactive gases to decay before they are released through the main ventilation exhaust stack.

Small releases of radioactive liquids from

valves, piping, or equipment associated with the primary coolant i

system may occur in.the_ Containment, Auxiliary, Turbine, J

RadWaste and Fuel Building 1.

The noble gases become part i

of the gaseous wastes w'lile the remaining radioactive I

liquids are collected in sumps and processed for reuse.

Processed primary coolant water that. does not meet chemical specifications for reuse may also become waste water.

These represent the ' principal sources.of _ liquid effluents.

I Table 2 summarizes the composition of radioactive gaseous effluents released from the Clinton Power - Station during 1995. There were no liquid radioactive effluents released 1

during 1995.

The highest calculated total body dose received by.a member of the public due to the release of 18

1 these radioactive materials was 0.00313 mrem.

This is compared to the 93 mrem per year received in Central Illinois due to natural background radiation.

TABLE 2 1995 RADIONUCLIDE COMPOSITION OF CPS EFFLUENTS""

Gaseous Effluents Radionuclide Half-life (Curies)

Gross Alpha NA 0.000219 Tritium (H-3) 12.3 years 15.4 Iron-59 2.7 years 0.000056C Chromium-51 27.7 days 0.00348 Mangenese-54 312.7 days 0.000203 Cobalt-58 70.8 days 0.0000844 Cobalt-60 5.3 years 0.000120 Yttrium-91m 49.71 minutes 0.00106 Technetium-99m 6.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.0948 Sodium-24 15.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.00183 Strontium-89 50.6 days 0.0000516 Cesium-138 32.2 minutes 0.0224 Barium-139 83.1 minutes 0.0143 Xenon-135 9.11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br /> 0.152 lodine-131 8.0 days 0.0000975 lodine-133 20.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.000824 Total 16.7

• There were no liquki radioactive effluents reisseed during 1995.

G.

RADIOACTIVE WASTE PROCESSING i

In a normal operating nuclear power plant, radioactive liquid and gaseous wastes are collected, stored and processed through treatment systems to remove or reduce most of the radioactivity (excluding tritium) prior to reuse within the plant or discharge to the environment.

These processing systems are required by the Clinton Power Station Offsite Dose Calculation Manual to be installed and operable to help ensure all releases of radioactive liquid and gaseous effluents are As Low As Beasonably Achievable (ALARA).

19

The liquid waste treatment systems consist of filters, demineralizers and evaporators.

Liquid wastes are routed through the waste evaporators to~ be degassed and distilled thereby reducing their volume and~ concentrating their radioactivity.

The distillates are further treated through demineralizers and filters and transferred to the waste evaporator condensate storage tanks.

Liquid wastes are processed through the appropriate portions of the liquid waste treatment system to provide assurance that the releases of radioactive materials in liquid offluents will be kept ALARA.

Liquid wastes are discharged into the plant cooling water stream which varies from approximately 5,000 gallons per minute, when the plant is in shutdown, to 567,000 gallons per minute, when the plant is at full power.

The liquid effluents _ are thoroughly mixed with and diluted by the plant cooling water as it travels the 3.4 miles of the discharge canal before it enters Clinton Lake east of DeWitt County Road 14.

The Clinton Power Station Offsite Dose Calculation Manual requires that liquid effluents not contain a higher concentration of any radioisotope than that which is set for continuous exposure to the. general public.

This condition is satisfied' at the point the liquid effluent is first introduced into the cooling water flow.

The additional dilution that occurs in the cooling water canal reduces the concentrations of radioisotopes to between 1/73 (for mini =n= flow) and 1/1890 (for maxinnun flow) of their original value before the water enters Clinton Lake.

The concentrated radioactive solids captured in tim liquid waste treatment system are processed and stored on-site or shipped off-site for disposal at licensed low-level waste disposal facilities.

The gaseous effluents from the main condenser are held up in the off-gas charcoal beds for at least 46 hours5.324074e-4 days <br />0.0128 hours <br />7.60582e-5 weeks <br />1.7503e-5 months <br />.

This provides time for the decay of most of the radionuclides present since most have a half-life of less than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

If gaseous effluents in the ventilation exhaust system for the Containment Building and for the Secondary containment structure exceed conservatively set levels, they are processed through charcoal beds and. high efficiency particulate air filters in the Standby Gas Treatment system before being discharged to the environment.

This combination of filters and charcoal beds is rated to be 95% efficient for removing iodines and greater than 99% efficient for removing particulate material larger than one micron (one millionth of an inch) in diameter.

20

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g RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

1 III.

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM A.

PROGRAM DESCRIPTION The Clinton Power Station is required to maintain a radiological environmental monitoring program in accordance with the Code of Federal Regulations (CFR)

Title 10, Section 20.1501 and Criterion 64 of CFR Title 10, Part 50, Appendix A.

The program was dqveloped using the following guidance published by the United States Nuclear Regulatory Commission (USNRC):

=> Regulatory Guide 4.1,

" Programs for Monitoring Radioactivity in the Environs of Nuclear Power Plants"

=> USNRC Radiological Assessment Branch Technical Position on Radiological Environmental Monitoring (1979)

The Radiological Environmental Monitoring Program is an extensive program of sampling, measuring and analyzing that was instituted to monitor the radiological impact of reactor operation on' the environment.

Objectives of the program include:

0 identification, measurement and evaluation of existing radionuclides in the environs of the Clinton Power Station and fluctuations in radioactivity levels which may occur 0 evaluation of the measurements to determine the impact of Clinton Power Statinn operations on the local radiation environment 0 collection of data needed to refine environmental radiation transport models used in offsite dose calculations 0 verification that radioactive material containment systems are functioning to minimize environmental releases to levels that are ALARA 0 demonstration of compliance with regulations and the Clinton Power Station Offsite Dose Calculation Manual.

Implicit in these objectives are tne requirements to trend and assess radiation exposure rates and radioactivity concentrations in the environment that may contribute to radiation exposure to the public.

The program consists of two phases, preoperational (preop) and operational.

21

s 1

L The.preoperational portion of the program was initiated in i

May, 1980 and was completed on February 27, 1987 to j

establish the~

baseline for the local radiation environment.

Assessment of the operational impact of the Clinton Power Station on the radiation environment is based on data collected since the beginning of reactor operation.

The operational phase implements confirmatory i

measurements to verify that the in-station controls for the release - of radioactive material are functioning as j

designed.

Illinois Power Company maintains a contract with Teledyne Browna Engineering Environmental Services Midwest Laboratory (TBEESML), formerly Teledyne Isotopes. Midwest Laboratory (TIML),

for analysis of all radiological i

environmental samples.

TBEESML is located in Northbrook, Illinois.

Samples are collected by Illinois Power Company' t

personnel and shipped to TBEESML for analysis.

After analysis, environmental samples are saved at TBEESML-for a-3 i

specified period of time in case additional analysis is required.

Analytical results are ' reported monthly to company radiation protection personnel.

Current regulatory guidance recommends evaluating direct

pathways, or the highest trophic level in a dietary i

pathway, _that contribute to an individual's dose.

Figure 3

shows the basic pathways of gaseous and liquid radioactive effluents to an individual.

The "important-1 pathways" selected are based primarily on how j.

radionuclides move through the environment and eventually expose individuals, as well as man's use-of the environment.

The scope of the program includes the monitoring of five environmental compartments:

direct radiation atmospheric aquatic terrestrial environments ground and surface water.

Each pathway is monitored at " indicator" and " control" locations.

Indicator locations are generally within the 10-mile radius of the station.

Control locations are located at least ten miles from the plant, far enough to be unaffected by plant operations.

An increase in dose i

rate or radioactive material concentration at an indicator location may be due to plant operations.

1 l

22

________._.___-._.._.____.._._._______..___.._.-..-_-_.-._-.._.___.._...m__.-._..______.._..__.____

i RELEASES DILUTED BY ATMOSPHERE 7

AIRBORNE ANIMALS RELEASES CLINTON POWER (MILK, MEAT)

PLUME EXPOSURE STATION i

AND INHALATION y

l l

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LIQUID i

U PEOPLE RELEASES CONSUMED DILUTED i

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BY ANIMALS

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r Locations of sampling stations are shown on maps in Figures 4 through 7.

Table 3 provides a list of the sample codes for each sample medium.

Table 4 provides information on sample location, media sampled at each location, and a brief description of each location where samples are taken.

The location is listed according to distance (in miles) and the compass sector relative to the Station Heating, Ventilation and Air Conditioning (HVAC) stack.

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TABLE 3 CLINTON POWER STATION SAMPLE CODES i

CODE SAMPLEMEDIUM i

AP I

Airborne Particulate l

AI Airborne Iodine TLD Direct Radiation I

M Milk DW Drinking Water j

SW Surface Water i

WW Well Water j

VE Green Leafy Vegetables t.

i F

Fish i

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BS Bottom Sediments a

SS Shoreline Sediments So Soil

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36

F TABLE 4 REMP SAMPLE LOCATIONS

• Station Sample Code Medium Location Description CL-1 AP,Al,TLD,SO,G 1.8 miles W Nearthe gate to Camp Quest, S of Birkbeck CL-2 AP,Al,TLD,SO,G 0.7 miles NNE Located on site's main access road.

Collocated with CL-70 and CL-71.

CL-3 AP,Al,TLD,SO 0.7 miles NE Located on site's secondary access road.

Collocated with CL-69.

i l

CL-4 AP,A1,TLD SO 0.8 miles SW Located on fa~m SE ofIllinois Power r

l Recreation Area. Collocated with CL-67.

l CL-5 TLD 0.7 miles NNE Located on site's main access road

• i CL 6 AP,Al,TLD,SO 0.8 miles WSW Located near the Illinois Power Recreation Area softball field. Collocated with CL-66.

l CL-7 AP,Al,TLD,SO 2.3 miles SE Located in the Mascoutin State Recreation Area i

CL-7B SS,SL 2.1 miles SE SE of site on Clinton Lake CL-7C BS,SL,SS 1.3 miles SE SE of site on Clinton Lake i

CL-70 VWV 2.3 miles ESE Located in Illinois Power Department of i

1 Conservation office at the Mascoutin State Recreation Area CL-8 AP,Al,TLD,SO,G 2.2 miles E Located at DeWitt Cemetery L

CL-9 SW.SL 2.7 miles ESE Located on NE side of DeWitt County Route 14 bridge CL-10c SW(1),BS,SS,SL 5.0 miles ENE Located on SE side of Illinois Route 48 bridge CL-11c AP,Al,TLD SO,G 16 miles S Located SW of Argenta at the lilinois Power Substation CL-12 WN i 6 miles E Located at the DeWitt pumphouse i

CL-13 SW 3.6 miles SW Located near the Salt Creek bridge on Illinois Route 10 CL-13A BS 5.0 miles SW Located on San Creek at the Route 1300E bridge CL-14 DW Plant Service Located in the Plant Service Building Building 37

1 TABLE 4 (Cont'd)

Station Sample Code Medium Location Description I

CL-15 AP,Al,TLD 0.9 miles N Located north of CPS on Route 900N CL-16 SO 0.6 miles ESE Located ESE of CPS just north of discharge fiume i

CL-17 BS 3.5 miles SW Located on the lake side of Clinton Lake i

dam CL-19 F,BS.SS,SL 3.4 miles E Located E of site at the end of the discharge fiume CL-20 TLD 9.1 miles ENE Located at the Campground Cemetery W of Farmer Cty

~

f CL-21 TLD 0.9 miles NNE Located at the intersection of Illinois Route 54 and the site's secondary access road i

CL-22 TLD 0.6 miles NE Located on the sne's secondary access road CL-23 TLD 0.5 miles ENE Located on the site's secondary access road CL44 TLD 0.5 miles E Located on the site's secondary access road CL 25 TLD 0.4 miles ESE Located on the Owner Controlled Area fence CL-26 TLD 0.3 miles SE Located on the Owner Controlled Area fence CL-27 TLD 0.6 miles SSE Located on the Owner Controlled Area fence near the Meteorological Tower CL-28 TLD 0.5 miles S Located on the Owner Controlled Area fence CL-29 TLD 0.6 miles SSW Located on the Owner Controlled Area fence CL-30 TLD 0.7 miles SW Located on the Owner Controlled Area fence at the entrance to Illinois Power Recreation Area 3

i CL-31 TLD 0.8 miles WSW Located on the Owner Controlled Area fence near the lilinois Power Recreation Area softball field CL-32 TLD 0.7 miles WSW Located on the Owner Controlled Area fence near Clinton Lake CL-33c TLD 11.7 miles SW Located in Maroa at family residence 1

38 y

r-w-

o-

TABLE 4 (Cont'd)

Station Sample Code Medium Location -

Description CL-34 TLD 0.8 miles WNW Located near CPS Visitors Center CL-35 TLD 0.7 miles NW Located near CPS Visitors Center near Illinois Route 54 bridge CL-36 TLD 0.6 miles N Located on Illinois Route 54 near intersection with site's main access road CL-37 TLD 3.6 miles N Located N of site CL-38 TLD 3.6 miles NNE Located near microwave tower N of site CL-39 TLD 3.8 miles NE Located 2 miles N of DeWrtt CL-40 TLD 3.5 miles NE Located 0.6 miles N of DeWitt CL-41 TLD 2.4 miles E Located at S DeWitt city limit CL-42 TLD 2.8 miles ESE Located S of DeWitt County Route 14 bridge CL-43 TLD 2.8 miles SE Located on Clinton Marina access road i

CL-44 TLD 2.3 miles SSE Located near Clinton Marine Boat Sales CL-45 TLD 2.8 miles S Located at Lane Day Use Area CL-46 TLD 2.8 miles SSW Located at Peninsula Day Use Area CL-47 TLD 3.3 miles GW Located near Clinton Lake Dam Access Road CL 48 TLD 2.3 miles WSW Located at residence on West Side Access Road CL-49 TLD 3.5 miles W Located W of site along Illinois Route 54 CL-50 TLD 3.2 miles WNW Located WNW of site CL-51 TLD 4.4 miles NW Located NW of site j

CL-52 TLD 4.3 miles NNW Located NNW of site

~

CL-53 TLD 4.3 miles E Located E of site CL-54 '

TLD 4.0 miles ESE Located 2 miles N of Weldon CL-55 TLD 4.1 miles SE Located 1.5 miles W of Weldon CL-56 TLD 4.1 miles SSE Located SSE of site 39

TABLE 4 (Cont'd)

Station Sample Code Medium Location Description CL-57 TLD 4.6 miles S Located S of site CL-58 TLD 4.3 miles SSW Located in ruralLane CL-59 TLD 3.3 miles SSW Located near Lane city limit CL-60 TLD 4.5 miles SW Located SWof Clinton Lake Dam near Salt Creek CL-61 TLD-4.5 miles WSW Located WSWof site CL-62 TLD 1.9 miles NW Located NW of site CL-63 TLD 1.3 miles NNW Located at North Fork Boat Access CL-64 TLD 2.1 miles WNW Located 0.5 miles N of Birkbeck CL-65 TLD

' 2.6 miles ENE Loca ted at residence in DeWrtt.

CL-66.

TLD 0.8 miles WSW Located near the Illinois Power Recreation Area softball field. Collocated with CL-6, CL-67 TLD 0.8 miles SW.

Located on farm SE ofIllinois Power Recreation Area. Collocated with CL-4.

CL-68 TLD 4.6 miles N Located N of site. Collocated with CL-112.

I CL-69 TLD 0.7 miles NE Located on site's secondary access road.

Collocated with CL-3.

CL-70 TLD 0.7 miles NNE tccated on site's secondary access road.

Collocated with CL-2 and CL-71.

CL-71 TLD 0.7 miles NNE Located on site's secondary access road.

Collocated with CL-2 and CL-70.

CL-72 TLD 4.5 miles NNE Located NNE of site. Collocated with CL-77.

CL-73 TLD 5.1 miles ENE Located near the MidAmerica Commodrties plant on lilinois Route 48. Collocated with CL-113.

CL-74 TLD 1.9 miles W Located at Camp Quest CL-75 TLD 0.9 miles N Located N of site CL-76 TLD 4.6 miles N Located N of site CL-77 TLD 4.5 miles NNE Located NNE of site Collocated with CL-72.

40 1

l l

TABLE 4 (Cont'd)

Station Sample Code Medium Location Description CL-78 TLD 4.8 miles NE Located NE of site CL-79 TLD 4.5 miles ENE Located ENE of site CL-80 TLD 4.1 miles W Located W of site CL-81 TLD 4.5 miles WNW Located WNW of site CL-82 TLD 0.9 miles W Located at Illinois Power Recreation Area l

l CL-83 TLD 0.5 miles NNW Located near lilinois Route 54 E of the bndge CL-84 TLD 0.6 miles E Located on Old Clinton Road between DeWrtt end site. Collocated with CL-94 and CL-86.

CL-85 TLD 0.6 miles ESE Located ESE of site

{

CL-86 TLD 0.6 miles E Located on Old Clinton Road between DeWitt and site. Collocated with CL-84 and CL-94.

CL-87 TLD 0 6 miles SE Located near discharge fiume road

~

CL-88 SS 2.4 miles SE Located SE of site CL-89 BS,SS 3 6 miles NNE Located NNE of site CL-90 SW 0.4 miles SE Located at start of discharge flume CL-91 SW 6.1 miles ENE Located at Parnell Boat Access CL-92 SW 0.1 miles NW Located at CPS Intake Screenhouse CL-94 AP,Al,SO 0.6 miles E Located on Old Clinton Road between DeWitt and site. Collocated with CL-84 and CL-86.

CL-95c TLD 10.5 miles W Located at a family residence west of Clinton CL-96c TLD 10.9 miles WSW Located at a family residence SW of Clinton CL-97c TLD 10.3 miles SSW Located on Macon County Road 1400E SE of Maroa CL-98 M

3.7 miles SSW Located at a farrff residence SSWof site CL-99 SW 3.5 miles NNE Located atine North Fork Canoe Access Area CL-105c F.SS,BS SL 50 miles S Located at Lake Shelbyville 41

1 TABLE 4 (Cont'd)

Station Sample Q

Medium Location Description CL-106 ME 2.0 miles NNE Located NNE of site CL-109 TLD 0.7 miles WSW Located on the Owner Controlled Area fence 1

i near Shooting Range CL-110 TLD 0.8 miles SW Located on the Owner Controlled Area fence

{

t CL-111 TLD 0.6 miles NE Located near site's secondary access road I

1 CL-112 TLD 4.6 miles N Located N of site. Collocated with CL-68.

CL-113 TLD 5.1 miles ENE Located near the MidAmerica Commodities plant on Illinois Route 48. Collocated with CL-73. "

CL-114e VE 12.5 miles SSE Located S of Cisco I

CL-115 VE-

. 0.7 miles NE Located on site's secondary access road

(

I CL-116c M,G 14 miles WSW Located in rural Kenney I

CL-117 VF1 0.9 miles N Located N of site I

CL-118 VE 0.7 miles NNE Located on Illinois Route 54 nearintersection with main access road Sample location is listed by station code, loc 9 tion and number. Station Code is Clinton (CL)-

(site's number designator). Location is listed by distance in miles and directional sector from the l

Station HVAC stack.

4 Controllocation; all other locations are indicators.

f c

(1)

Control location for surface water only.

1 l

i I

l 1

42

l f

B.

Direct. Radiation Monitoring Radionuclides present in the air, and those deposited in or on the ground cause human exposure by immersion in the atmosphere or by deposition on-the Jround.

TLDs (thermoluminescent dosimeters) are _ used to measure the ambient gamma radiation field at many locations around the Clinton Power Station.

TLDs are crystalline devices that store energy when they are exposed to radiation.

They can be processed months after exposure with minimal loss of information.

This makes them well suited for quarterly environmental radiation measurements.

During processing, the stored energy is released as light and measured by a TLD reader.

The light intensity is proportional to the radiation dose the TLD received.

The TLDS used in monitoring around the Clinton Power Station are easily capable. of measuring environmental levels of radiation, approximately 20 mrem per quarter.

Monitoring stations are placed near the site boundary and approximately five miles from the reactor, in locations representing the sixteen compass sectors.

Other locations are chosen to measure the radiation field at places of special interest such as nearby residences, meeting places and population centers.

Control sites are located further than ten miles from the

site, in areas that should not be affected by plant operations.

TLD measurements register the gamma ray exposure in milliroentgen (mR).

For reporting purposes mR is numerically equivalent to mrem.

Consequently the terms are used interchangeably.

A total of 344 TLD measurements were made in 1995.

The average quarterly dose at indicator locations was 17.9 i

mrem.

These quarterly measurements ranged from 11.8 to 25.0 mrem.

At control locations the average quarterly dose was 17.8 mrem. These quarterly control measurements

}

ranged from 14.2 to 22.4 mrem.

Figure 8 compares the 1995 quarterly TLD results with preoperational TLD quarterly averages.

Average doses (i2 standard deviations), broken down by calendar quarter, are shown in Table 5 for both indicator and control locations.

43

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30 28 a Preop Data 26 a1995 Indicator a1995 Control l

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4 FIGURE 8: DIRECT RADIATION COMPARISON

TABLE 5 AVERAGE OUARTERLY TLD RESULTS 1995 1994 PREOP OUARTER INDICATOR INDICATOR ALL SITES 1st 17.0 3.1 17.7 2.9 16.4 2.9 2nd 16.7 i2.9 17.7 2.9 18.8 3.2 3rd 17.9 3.5 19.2 3.6 19.1 z4.7 4th 20.2 4.2 18.3 23.4 17.8 2.2 1995 1994 PREOP OUARTER CONTROL CONTROL ALL SITES 1st 17.0 3.8 17.6 2.4 16.4 2.9 2nd 16.8 2.8 17.2 t3.1 18.8 3.2 3rd 17.9 3.7 19.0 z3.0 19.1 4.7 4th 19.6 4.3 17.3 2.6 17.8 t2.2 Site CL-83, located 0.5 miles NNW of the

station, registered the highest annualized dose:

82.6 mrem during j

1995.

From these observations, no increase in environmental gamma radiation levels resulted from operation of the Clinton Power Station during 1995.

j i

C.

Atmospheric Monitorina The inhalation and ingestion of radionuclides in the air is a direct exposure pathway to man.

A network of ten active air samplers around the Clinton Power Station monitors this pathway.

There are nine indicator air sampling stations strategically located in areas which are most likely to indicate effects due to the release of radioactive effluents from the Clinton Power Station.

The control location is located approximately 16 miles south of the plant in an area which is likely to be independent of the effects of station operations.

Historical meteorological data indicates this control location is normally upwind from the plant.

No contribution

.to the general level of airborne particulate radioactivity could be identified as a result of station operations during 1995.

The radioactivity that i

was detected is normally found in the environment and is consistent with

. expected concentrations of natural radioactivity and fallout from prior atmospheric nuclear weapons testing.

47

i Mechanical air samplers are used to. draw a continuous volume of air through a filter and charcoal cartridge to collect particulates and radioiodines present in the atmosphere.

The samplers are : equipped with a pressure-sensing flow regulator to maintain a constant. sampling flow rate of about one. cubic. foot per minute.- The total volume.is calculated based on the amount of time the air sampler ran and its flow, rate.

The air sampling equipment is maintained'and calibrated by the Clinton Power Station personnel using reference standards traceable. to the National Institute of Standards and Technology.

Air samples are collected weekly and analyzed for gross beta and I-131 activities.

Quarterly, all air particulate filters collected during that period are combined and counted for gamma isotopic activity.

Since the intent of particulate sampling is to measure airborne radioactivity released from the plant, the counting of' short-lived daughters produced by the decay of natural rados and thoron may mask plant. contributions.

Therefore, the filters are not analyzed for at least five days after their' collection to allow for the decay of the short-lived daughters, thereby. reducing their. contribution to gross beta activity.

I Results of the gross beta airborne particulate - analyses provided comparisons between

' indicator

.and control

-locations for the year, as well as comparisons between locations in relation to spatial and temporal differences.

The calculated annual average was - 0.021 pCi/m3 for all indicator locations and 0.021 pCi/m3 for the control location.

These.

results are consistent with the preoperational averages for both indicator and control locations which were 0.027 pCi/m3, The. location with the highest calculated annual average was indicator' station CL-3 located 0.7 miles northeast of the Clinton' Power Station.

This location had an average concentration of 0.022 pCi/m3 Individual location averages for the year are presented in Table 6.

Minor fluctuations in the gross beta concentrations were noted throughout the year.

The general trend for average weekly gross beta concentrations in the-indicator locations correlated to the ' trend for control ' locations throughout the monitoring period.

This correlation is evidenced by the similarity of the trends in the average monthly gross beta. concentrations displayed in Figure 9.

No significant difference was indicated between individual locations.

Monthly averages for indicator and control locations for the year are presented in Table 7.

48

All gross beta concentrations for 1995 were within normal background levels and no increases were noted as a result of the operation of the Clinton Power Station.

1 Naturally occurring Be-7 was the only gamma-emitting radionuclide. detected in analyses of particulate filters.

{

TMM 6 AVERAGE GROSS BETA CONCENTRATIONS 3

4 3

IN AIR PARTICULATES 1994 1995 Average i 20 Average 20 Station Description 3

reci/m 5 trei/m3)

CL-1 Camp Quest (Birkbeck) 0.019 i 0.014 0.019 i 0.014 CL-2 CPS Main Access Road 0.020 0.014 0.020 0.016 CL-3 CPS Secondary Access 0.021 i 0.015 0.022 i 0.016 Road i

CL-4 0.8 miles SW 0.021 i 0.015 0.021 t 0.017 i

CL-6 IP Recreation Area 0.021 i 0.015 0.021 i 0.015 1

i CL-7 Mascoutin State 0.017 0.014 0.019 0.015 l

Recreation Area CL-8 DeWitt Cemetery 0.020 i 0.014 0.021 0.016 4

CL-11a IP Substation 0.020 i 0.013 0.021 1 0.016 (Argenta)

CL 0.9 miles N 0.020 0.014 0.020 i 0.015 CL-94 Old Clinton Road 0.020 0.015 0.021 0.016 (0.6 miles E)

(a)

Control Station 49

TABLE 7 AVERAGE MONTHLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATES" 1995 1994 1995 1994 Indicator Indicator control control Month pv.r g. e s o) pv.r g. s a o) meer g.

• so) ge.r g.

• s o)

January 0.022 0.002 0.029 20.004 0.021 z0.015 0.029 0.005 February 0.022 0.003 0.022 0.005 0.021 20.010 0.022 20.002 March 0.018 20.004 0.019 0.002 0.018 *0.015 0.017 *0.003 April 0.014 *0.002 0.014 0.001 0.015 so.007 0.015 0.003 May 0.011 *0.002 0.011 20.003 0.012 0.004 0.011 0.006 June 0.017 20.004 0.016 0.003 0.018 0.012 0.019 0.006 July 0.020 0.003 0.016 0'.003 0.020 0.009 0.018 to.006 August 0.023 0.004 0.019 20.004 0.024 0.024 0.018 20.007 September 0.025 20.003 0.021 20.004 0.022 20.008 0.021 0.012 October 0.025 20.004 0.019 20.003 0.025 *0.020 0.019 20.004 i

November 0.023 10.004 0.020 *0.002 0.028 0.014 0.021 *0.003 December 0.026 0.004 0.033 20.004 0.027 0.018 0.032 *0.013

• Concentrations are in pCi/m 3

50

0.052

, PREOP ALL SITES

-*-1995 CONTROL 0.042

-*-1995 INDICATOR 3

I g 0.0=

U2 g

E O.022

~

u, o

N

/

00,2 1

m2 j

BRONTH FIGURE 9: AIR PARTICULATE GROSS BETA ACTIVITY COMPARISON

D.

Acuatic Monitorino The Clinton Power Station utilizes a man-made lake as the source of cooling water and returns the used cooling water to the same lake while most nuclear power stations use once-through flow from a river, the ocean or a body of water much larger than Clinton Lake.

When radioactive liquid effluents are discharged from the Clinton Power Station into the cooling water outfall, radioisotopes with long half-lives could build up as the same water is reused on successive trips through the plant.

This water travels from the plant, into the eastern arm of the lake, then into the northern arm of the lake and back into the plant.

Although the only user of Clinton Lake as a source of drinking water is the Clinton Power. Station, the lake is a major recreational facility, used for fishing, swimming, water skiing, boating and hunting.

Clinton Lake constitutes the primary. environmental exposure pathway for radioactive materials in liquid effluents.

Aquatic monitoring provides for the collection of fish, shoreline and bottom sediments, and periphyton samples to detect the presence of any radioisotopes related to operation of the Clinton Power Station.

These samples are analyzed for naturally occurring and man-made radioactiva materials.

Both indicator and control locations were sampled during 1995.

Indicator samples were taken from various locations on Clinton Lake and the control samples were taken at Lake Shelbyville which is approximately 50 miles south of Clinton Power Station.

Aquatic monitoring samples are collected by personnel from the Field Biology Laboratory of the Environmental Resources Department of Illinois Power Company.

Fish Samples of fish are collected from Clinton Lake and Lake Shelbyville.

In both lakes the samples include largemouth bass, crappie, carp and bluegill.

These species are the fish most commonly harvested from the lakes by sport fishermen.

Fish ingest sediments during bottom feeding, or prey on other organisms which ingest sediments or otherwise retain radionuclides.

Radiological analyses of these fish samples provide information on the potential ingestion of radionuclides by humans via the aquatic pathway.

These samples are collected semiannually and analyzed by gamma spectroscopy.

The results of gamma isotopic analysis on the fish samples showed the presence of naturally occurring K-40 in all 1995 samples ranging from 2.16 to 3.26 pCi/g (wet).

Preoperational K-40 concentrations ranged from 1.71 to 4.61 pCi/g (wet).

All other analytical results were less 53

- - - - ~

than the lower limit of detection (LLD),

for each radionuclide.

Shoreline Sedhnants Samples of shoreline sediments are collected at six locations from Clinton Lake and at one location from Lake Shelbyville.

Radiological analyses of shoreline sediments-provide information on the potential shoreline exposure to j

humans' and for determining long-term trends and accumulation of long-lived radionuclides

_in the j

environment.

Samples are collected semiannually and i

analyzed for gross _ beta, gross alpha, Sr-90 and gamma isotopic activities.

Shoreline sediment samples are dried prior to analysis and the results are reported in pCi/g dry weight.

Naturally occurring radioisotopes, such as K-40, Ra-226 and Pb-212, were present in samples, taken at both indicator and control Llocations.

Cesium-137, _ a fission product, was detected at an indicator location.

The activity detected i

was not substantially different from that measured during the'preoperational program.

The presence of these fission products -is attributed to i

previous nuclear weapons testing and atmospheric fallout from the accident at chernobyl..

Preop Range' 1995 Range 1994 Range (oci/a drv)

(oci/c drv)

(nci/a drv)

Cs-137 0.016 - 0.045 0.021 - 0.046 0.016 - 0.047 Gross alpha activity in samples of shoreline sediments collected from all locations ranged from 1.56 to 7.40 pCi/g (dry) during 1995.

This activity was attributed to naturally occurring radioisotopes and decay products present in soil.

These values compare closely with the activity detected in the preoperational program which ranged from 3.8 to 8.0 pCi/g (dry).

Gross beta activity in samples of shoreline sediments collected from all locations ranged from 4.63 to 16.45 pCi/g.(dry) during 1995.

The majority of this activity was attributed to naturally occurring K-40.

These values are comparable with the gross beta activity detected in the -preoperational program which ranged from 7.0 to 17.2 pCi/g (dry).

54 w

Bottom Sediments Samples of bottom sedhnents are collected from Clinton Lake at six locations and Lake Shelbyville at one location.

Radiological analyses of bottom sediments primarily provide information about the amount of radionuclides available to predators who feed on the organisms found in bottom sediments.

Samples are collected semiannually and analyzed for gross beta, gross alpha, Sr-90 and gamma isotopic activities.

Bottom sediment samples are dried prior to analysis and the results are reported in pCi/g dry weight.

Naturally occurring radioisotopes, such as K-40 and Pb-212, were present in all 1995 control and indicator sample locations.

i Cs-137 and Sr-90 was detected in samples from both indicator and control locations.

Both radioisotopes are j

fission products.

Preop Range 1995 Range 1994 Range (DCi/o dry) foci /o dry)

(DCi/o drv)

Sr-90 0.011'- 0.056 0.010 - 0.025 0.011 - 0.021 Cs-137 0.008 - 1.39 0.008 - 0.41 0.017 - 0.38 The presence of these fission products is attributed to previous nuclear weapons testing and atmospheric fallout from the accident at Chernobyl.

Gross alpha activity in samples of bottom sediments collected from both lakes ranged from 4.56 to 15.94 pCi/g (dry) during 1995.

This activity was attributed to naturally occurring radium isotopes and decay products present in soil.

The preoperational gross alpha activity ranged from 4.4 to 14.7 pCi/g (dry).

Gross beta activity in samples of bottom sediments collected from both lakes ranged from 9.01 to 30.01 pci/g (dry) during 1995.

The majority of this activity was

' attributed to naturally occurring K-40.

The preoperational gross beta activity ranged from 8.3 to 27.7 pCi/g (dry).

Acuatic Vecetation (Perichyton)

Samples of periphyton are collected from five locations in Clinton Lake and one location in Lake Shelbyville.

Periphyton (attached algae) are collected' from the 55 l

submerged surface of the permanently - anchored _ buoys or natural substrate.

Periphpton absorb trace elements and radionuclides directly from water, often concentrating them to levels much higher than the dilute concentrations that occur. in the aquatic environment.

This is because most algae are coated with a carbohydrate jelly.and have a large surface-to-volume ratio.

Cell divisiori usually occurs once every one or two days and, as a result, half of the cell' wall is

-a new surface for sorption.

Periphyton represent one of the earliest links in the food

~

chain and provide information about the amounts of radionuclides available to predators further up the food chain.

Samples of periphyton are collected every two months between April and October (during the colder months growth is limited)' at the indicator locations and semiannually at the control location and analyzed by gamma spectroscopy.

Periphyton analyses are included in the Clinton Power Station Environmental Monitoring Program because of their sensitivity to.the presence of radionuclides in the aquatic environment due to bio-magnification.

l t

Using periphyton as biomonitors for radionuclides in aquatic systems can be a

highly sensitive and qualitatively effective means of environmental monitgring around nuclear power plants that ' release' radioactive effluents to aquatic systems.

It enables the Radiological Environmental Monitoring Program to determine the relative presence of radioactivity before it becomes a problem.

The results of the gamma isotopic analyses on periphyton samples showed the following concentrations of naturally occurring radioisotopes:

Preop Range 1995 Range 1994 Range (DC1/a drvi (oCi/a drv)

(DCi/c drv)

Be-7 0.38

- 1.07 0.39

- 2.27 0.10

- 1.42 K-40 0.74

- 6.82 0.60

- 5.46 0.25

- 4.76 Cs-137 0.042 - 0.15 0.025 - 0.088 0.026 - 0.085 One fission product, Cs-137, was detected in several periphyton samples.

Concentrations for Cs-137 in 1995 ranged from 0.025 to 0.088 pCi/g (wet).

Preoperational results for Cs-137 showed concentrations ranging from 0.042 to 0.15 pCi/g (wet).

The presence of Cs-137 is attributed to previous nuclear weapons testing and atmospheric fallout from the accident at Chernobyl.

56

-l E.

Terrestrial Monitorino In addition'to the direct radiation, radionuclides present in the -atmosphere e'xpose individuals when deposited on surfaces (e.g.,

plants and soil) and are subsequently ingested directly by man or indirectly by consumption of 2

animal products (e.g.,

meat and milk).

To monitor this food pathway, samples of green leafy vegetables, grass, 4

L milk and meat are analyzed.

4 Surface soil. samples are collected and analyzed annually

{

at the sewage sludge application site to ensure radionuclides attributed to the operation of Clinton Power Station are not being land applied with the processed sewage. sludge.

Every three years, samples are taken at j

nine.other locations to monitor the potential buildup of l

atmospherically deposited radionuclides.

I-Surface vegetation samples are collected from a' number of locations for the purpose of monitoring the potential i

buildup of atmospherically deposited

. radionuclides.

Because the radionuclides of interest, with respect to the l

Clinton Power Station operations, are also present-in the environment as a result of several decades of worldwide 1

fallout or because they are naturally occurring, the l

presence of these radionuclides is expected in all of the l

samples collected.

The possible contributions of radionuclides from the i

operation of the Clinton Power Station are assessed by comparing the results of samples collected in prevalent downwind locations (north to north north-east of the plant) with control samples and samples collected in locations generally upwind of the plant.

In addition, the results of samples collected during 1995 were compared with the results of samples collected during the preoperational program.

In addition to naturally occurring radioisotopes, Sr-90 was found in a number of 1995 samples..

However, the concentrations of radionuclides in samples collected near the Clinton Power Station were comparable to the concentrations in samples collected at locations remote from the station.

The presence of this fission product is attributable to previous nuclear weapons testing and fallout from the accident at Chernobyl.

The operation of Clinton Power Station had no measurable contribution to the radioactive concentration of the terrestrial environment.

Milk There is no known commercial production of milk for human consumption within a five-mile radius of the Clinton Power 57

l Station.

Milk samples are collected from a dairy located about 14 miles west southwest of the station and goat milk l

is collected from a family residence 3.5 miles south southwest of the station (twice a month during May through October and once a month during November through April).

These samples are analyzed for I-131, Sr-90 and gamma isotopic activities.

The results of the analyses showed positive concentrations of.K-40 and Sr-90 in all 1995 samples with a range of 1100 to 2160 pCi/l for K-40 and 0.9 to 2.4 pCi/l for Sr-90.

Preoperational activity of K-40 in milk ranged from 706 to 1375 pCi/1.

Strontium-90 analysis in milk was added to the REMP during the operational phase of the program, therefore there were no preoperational data for this isotope.

I-131 was not detected in any milk sample ~

obtained during 1995.

Figure 10 presents the Sr-90 results graphically.

Grass In addition to milk samples, grass samples are collected at three indicator locations and at two control locations.

These samples are collected twice a month during May through October and once a month during November through April (when available).

These samples are analyzed for gamma isotopic activity including I-131.

i The results of the analyses showed only naturally occurring Be-7 and K-40 in all 1995 samples.

Iodine-131 was not detected in any grass samples obtained during 1994.

Preop Range 1995 Range 1994 Range (DCi/o wet)

(DCi/o wet)

(DCi/c wet)

Be-7 0.022 - 14.0 0.28 - 12.24 0.21 - 22.12 K-40 0.22 - 14.5 1.45 - 11.79 0.60 - 22.08 Veoetables The Clinton Power Station obtains broadleaf vegetable samples from three indicator locations and at one control location.

The indicator locations are located in the sectors with the highest potential for surface deposition and the control location is in a sector and at a distance which is considered to be Tffected by plant operations.

Samples are collected oncu a month during the growing season (Jane through September) and analyzed for gross beta anc gamma isotopic activities including I-131.

l 58

10.0 9.0 8.0

+1995 Indicator (Goat Milk) 7.0

+1995 Control (Cow Milk)

Un v ea nkator Madon 6.0 b

Q.

5.0 N

'5 4.0 4

3.0 A

2.0 "

[

5

~

K_

y r

0.0 01/25 2/22* 3/29* 4/26* 05/10 05/24 06/07 06/21 07/05 07/19 08/02 08/16 08/30 09/13 09/27 10/11 10/25 11/29 12/27 DATE FIGURE 10: STRONTIUM-90 ACTIVITY IN MILK

1 l

The results of the' gamma isotopic analysis showed only naturally occurring K-40 and Be-7.

Preop Range 1995 Range 1994 Range (oCi/a wet)

(DCi/o wet)

(oCi/o wetl Be-7 0.082 - 0.69 0.07 - 0.42 0.010 - 0.67 K-40 1.45 - 7.00 1.48 - 9.14 1.99 - 8.59 Gross Beta 0.87 - 8.80 2.15 - 10.13 1.86 - 14.74 lodine-131 was not detected in any vegetable samples during 1995.

14 eat As an additional check on the presence of radioactive materials in terrestrial exposure pathways, annual samples of beef liver, beef thyroid and edible beef portions are collected from an animal raised near the Clinton Power Station.

These samples are analyzed for gamma isotopic activity including I-131.

The results of the gamma isotopic analysis showed only naturally occurring K-40 in the liver and the edible beef portions at 2.36 and 2.53 pCi/g (wet) respectively..

Preoperational activity ranged from 1.95 to 2.78 pCi/g (wet).

I-131 was not detected in the meat samples during 1995.

S.9AL one soil sample was collected from an area where Clinton Power Station land applies processed sewage sludge from the Clinton Power Station Sewage Treatment Plant.

1 Soil samples are sifted to remove any stones or debris, then dried and analyzed.

All soil samples are analyzed for gross beta, gross alpha and gamma isotopic activities.

l The results of the gross beta activity was 21.86 pCi/g (dry).

Gross alpha activity was 1.03 pCi/g (dry).

Gamma isotopic activity indicated several naturally occurring isotopes, such as K-40, Bi-214 and Pb-212.

1 Preop Range 1995 Results 1994 Results (pci/a drv)

(pci/a dry)

(oci/o dry)

Gross Beta 17.7 - 24.7 21.86 19.24 - 25.0 Gross Alpha 6.2 - 10.4 12.03 6.58 - 12.92 t

61

r-s i

i F.

Water Monitorina l

Water monitoring provides for the collection of drinking water, surface water and ground water (well water) samples to detect the presence of any radioisotopes related to the operation of the Clinton Power Station.

The only identified user of water from Clinton Lake for domestic purposes is the Clinton Power Station; all others potentially exposed to any radioisotopes released into l

surface or ground water would not be affected for several years.

Samples taken were analyzed for naturally occurring and man-made radioactive isotopes.

Average gross beta concentrations in ' surface, drinking and well water are presented in Table 8 at the end of this section.

Drinkina Water A composite water sampler located in the Service Building collects a small, fixed' volume sample at hourly intervals.

The sampler discharges each sample into a common sample l

collection bottle.

Therefore, the monthly sample analyzed by the contracted laboratory service is a composite of the individual samples collected throughout the month.

The monthly composite sample is analyzed for gross alpha, gross beta and gamma isotopic activities.

A portion of each monthly sample is mixed with the other monthly samples collected during each calendar quarter.

The i

quarterly composite sample is analyzed for tritium.

Gross beta activity ranged from 1.2 to 2.3 pCi/1.

These levels are attributed to very fine particles of sediment containing K-40 which are not removed during the chlorinating and filtration process.

Monthly drinking water gross beta concentrations are presented in Figure 11.

One gross alpha analysis indicated 0.6 pCi/1.

Preoperational result were all below the lower limits of detection except for one result which was 0.4 pCi/1. This result can be attributed to naturally occurring radioisotopes, such as U-238 and Ra-226, suspended as fine sediment particles in water.

The results of all analyses for tritium and gamma-emitting radioisotopes were all less than the lower limit of detection.

These results show no measurable offects on drinking water resulting from operation of the Clinton Power Station during 1995.

62

5.0 4.5

-E-1995 Activity 4.0 -

--+-Preop Activity 3.5 Sample rea dt s: LLD - - - - - - -.

3.0 -

.d Oo.

w 2.5 -

g A

A

_F-0 2.0 - -- _------- _----

O 4C T.

W A.

1.5

---

^ ------------

1.0 - ----------------------------------------------------------------------------------------------------<

0.5 -

0.0 JAN FEB MAR

• APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH FIGURE 11: DRINKING WATER GROSS BETA COMPARISON

l l

Surface Water Composite water samplers are installed in four locations to sample surface water from Clinton Lake.

These samplers collect a small volume of water at regular intervals and discharge it to a large sample collection bottle.

These l

bottles are collected monthly.

Two of the composite samplers are located upstream from Clinton Power Station and are unaffected by plant liquid releases downstream.

The two other composite samplers are positioned at the locations most likely to be affected by plant operations (one samples the intake water to the Circulating Water Intake Structure and the other samples the water at the start of the plant discharge flurr.e).

j l

Monthly grab samples are collected from two indicator locations and one control location on Clinton Lake.

Surface water samples are analyzed for gross beta, gamma isotopic and tritium activities.

Additional analyses for gross alpha activity are performed on the upstream water samples.

Additional analyses for gross alpha activity and I-131 activity are performed on water samples taken from the discharge flume.

Tritium analyses are performed monthly on samples from the intake structure water samples and the upstream composite water samples, and quarterly from composites of monthly samples at the other locations.

The 1995 results of the gross beta analyses ranged from 1.2 to 5.2 pCi/l at the indicator locations and 1.0 to 3.1 pCi/l at the control location.

Preoperational gross beta activity ranged from 1.1 to 7.6 pCi/1.

These results are attributed to naturally occurring K-40 suspended as fine sediment particles in water.

Other types of samples have confirmed the presence of K-40 in Clinton Lake shoreline and bottom sediments.

Monthly surface water gross beta activity for the control and indicator locations are presented graphically in Figure 12.

Tritium analyses performed on samples were all less than LLD.

The preoperational tritium concentrations ranged from 220 to 330 pCi/1.

As noted in reference (EI87),

previous nuclear weapons testing increased the pre-1960 levels of tritium (6-24 pCi/1) by a

factor of approximately fifty (300-1200).

Gamma-emitting radioisotopes were all below the lower limits of detection, and there was no iodine-131 detected in any surface water sample during 1995.

i Gross alpha activity was detected in several of the l

surface water samples analyzed.

These results ranged from l

0.7 to 4.2 pCi/1.

Preoperational gross alpha activity ranged from 1.3 to 1.9 pCi/1.

These results were 65

attributed to naturally occurring radioisotopes, such as U-238 and Ra-226, suspended as fine sediment particles in i

water.

These results show. no measurable change in radioactive material concentration in surface water due to-operation of the Clinton Power Station during 1995.

Well Water l

l Every two weeks samples are collected from the well I

l serving the Village of DeWitt (both treated and untreated

{

samples are obtained) and from a well serving the Illinois j

nepartment of Conservation at the Mascoutin State Recreational Area.

Each sample is analyzed for I-131.

All samples drawn from the same well during a particular i

month are combined and analyzed for gross alpha, gross j

l beta and gamma isotopic activities.

In

addition, a

portion of each monthly composite is added to the quarterly composite sample and is analyzed for tritium.

l The 1995 results of the gross beta analyses ranged from 1.2 to 4.7 pCi/l.

Preoperational gross beta activity l

ranged from 1.1 to 5.1 pCi/1.

The gross beta activity was attributed to naturally occurring K-40 suspended as fine i

sediment particles in water Gross alpha activities in well water samples ranged from i

1.3 to 2.3 pCi/1.

Preoperational gross alpha activity ranged from 0.9 to'1.8 pCi/1.

Gross alpha activity can be attributed to naturally occurring radioisotopes, such as, i

U-238 and Ra-226, suspended as fine sediment particles in l

water.

Gamma-emitting radioisotopes were all below the lower limits of detection.

Tritium and I-131 were not detected in any well water samples taken during 1995.

These results show no measurable change in radioactive material concentration in well water resulting from operation of the Clinton Power Station during 1995.

i h

l t

66

10.0 9.0 -

--+-- 19951NDICATOR 1995 COMOL 8.0 -

-*-PREOP INDICATOR 7.0 -

c 6.0 -

---

~~----------------------------------------------------------------

U O.

v y 5.0 -

---

------------------------------------------~~---------------------------------------

D 4.0 -

m N

3.0 - -------------------------------.-_----- h ---------------

U 5

2.0 -

. M ----- "-------

T------

7--------------------

[

1.0 -

0.0 I

4 4

4 5

5 5

I 5

g JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH FIGURE 12: SURFACE WATER GROSS BETA ACTIVITY COMPARISON

l l

l TABLE 8 AVERAGE GROSS BETA CONCENTRATIONS IN DRINKING, SURFACE AND WM L WATER 1994 1995 l

Average 20 Average 20 Station Description (DC.1/1)

(DCi/1)

Drinking Water _

l CL-14 CPS (Service Building) 2.0 0.5 1.9 0.6 Surface Water CL-9 DeWitt Road Bridge 2.9 1.9 2.3 1.2 CL-10(c)

IL 48 Bridge 2.7 z 1.5 2.2 z 1.3 CL-13 Salt Creek (below dam) 2.8 0.9 2.2 1.2 CL-90 CPS Discharge Flume 2.6 0.7 2.8 z 2.8 CL-91 Parnell Boat Access 2.1 1.0 2.5 1.2 CL-92 CPS Intake Screenhouse 2.7 1.3 2.3 1.0 CL-99 North Fork Canoe Access 3.1 4.2 2.5 1.5 Well Water CL-7D Mascoutin State Recreation Area 1.4 0.6 1.4 0.3 j

l CL-12(T)

DeWitt Pump Station 2.2 1.0 2.9 2.0 CL-12(U)

DeWitt Pump Station 1.9 1.3 3.3 2.4 (U) Untreated (T) Treated (c)

Control location; all others are indicators I

3 69

l G.

Quality Assurance Procram To establish confidence that data developed and reported l

are accurate and

precise, all REMP activities are l

incorporated into the Illinois Power Company Quality Assurance (QA) program of audits and surveillances.

The Quality Assurance program requires:

Participation in intercomparison programs, such as the EPA cross-check program.

An annual audit of the analysis laboratory functions and facilities.

Periodic review of the Clinton Power Station l

procedures specifying sampling techniques.

Duplicate analysis of every tenth sample assayed (not including TLDs).

This requirement is to check laboratory precision.

The routine counting of quality control samples.

Approximately ten percent of the total number of counts performed are to be quality control counts.

The analytical results provided by the laboratory were routinely reviewed by the Radiological Environmental Group of the Radiation Protection Department to ensure the required minimum sensitivities have been achieved and the proper analyses have been performed.

Teledyne Brown Engineering Environmental Services Midwest Laboratory (TBEESML) participates in the Environmental Protection Agency cross-check program.

The TBEESML participant code in the cross-check program is CA.

Participation in this program provides assurance that the laboratory is capable of meeting widely-accepted criteria for radioactivity analysis.

Results of the 1995 cross-check program are shown in Appendix D.

H.

Chances to the REMP Durino 1995 Occasionally changes to the Radiological Environmental Monitoring Program are necessary to improve the monitoring of the environmental exposure pathways.

These changes may result from items identified during the performance of the i

Annual Land Use

Census, revised or new regulatory requirements, Quality Assurance audits or supplemental periodic and long-term sampling and analyses.

70

-~

5 t

i I

.During

1995, CL-92 and CL-93 were deleted from the program.

Also, an additional type of broadleaf vegetation (collard greens) was grown to supplement the current types of vegetation grown (cabbage, lettuce, Swiss chard, kale p

greens and spinach).

1 4

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ANNUAL LAND USE CENSUS

l IV.

ANNUAL LAND USE CENSUS A land,use census is performed to ensure that changes in the use of areas at and beyond the site boundary are identified and that any necessary modifications to the REMP hre made.

The land use census is performed to identify within a

distance of 5 miles (8 km), the locations in each of the 16 meteorological sectors of ' the nearest milk animalo, the nearest residence and the nearest garden of greater tnan 500 square feet producing broadleaf vegetation.

Also, the census shall identify within a distance of 3 miles (5 km),

the location in each of the 16 meteorological sectors of all milk animals and all gardens of greater than 500 square feet producing broadleaf vegetation.

TABLE 9 1995 ANNUAL LAND USE CENSUS Nearest Nearest Nearest sector Residence (km)

Garden (km)

Milk Animal (km)

N 1.68 1.68 1.68 NNE 1.71 1.71 2.14

]

NE 2.07 3.46 3.46 ENE 2.78 4.21 7.54 E

1.42 3.95

~*

ESE 5.14 5.14 SE 4.73 4.73 SSE 2.74 3.96 3.72 S

4.78 4.78 SSW 4.68 4.68 5.36 SW 1.13 5.87 5.87 WSW 2.47 4.45 5.53 W

2.63 2.63 3.35 WNW 2.66 0.80 NW 2.79 3.11 NNW 2.85 2.85 1.74

• None identified within 8 kilcuneters of CPS in this meteorological sector.

The 1995 Land Use Census was conducted during the growing season satisfying the CPS Offsite Dose Calculation Manual requirements.

Over 170 residences were surveyed by either direct contact, mailed in questionnaire, telephone, or direct observation.

Data for this report was obtained using the following means:

Performed door-to-door solicitation of residences / land o

owners identified in the 1994 Annual Land Use Census and i

the 1994 DeWitt County plat book.

If a resident was 1

73

unavailable' for questioning, a questionnaire was placed on their door to have them fill out and mail back.

Performed telephone solicitation of persons who were o

unavailable during the door-to-door survey and didn't mail back their questionnaire.

By direct observation of land. when the aforementioned o

methods were unsuccessful.

If an individual was unable to be contacted, data from the previous year was used.

• Contacted several state and local agencies.

The 1995 Land Use Census results were examined to ensure that the REMP will.

provide representative measurements of radiation and radioactive materials in those exposure pathways and for those radionuclides that lead to the highest potential radiation exposures to the general public resulting from Clinton Power Station operations ~.

On the basis of the examination of the 1995 Annual Land Use Census results, no changes to the REMP were made.

1 r

O.

l l

1 74 i

- - -i

I Summary of Changes Identified in i

1995 Annual Land Use Census

\\

Warest Residence Three changes were identified for the nearest residence.

These changes are shown below:

1995 Census Location 1994 Census Location 2.07 km NE 3.07 km NE 1.42 km E 1.58 km E 2.85 km NNW 2.50 km ImW l

Nearest Garden A total of 100 gardens were identified in the 16 sectors within a 5-mile (8 km) radius of Clinton Power Station of which 60 produced broad leaf vegetation m2. (e. g.,

lettuce and cabbage) and were greater than 50 In most cases,

tomatoes, sweet corn and beans were grown in gardens identified.

Citanges in census locations for the nearest garden were identified in 7 of the 16 sectors and are shown below:

1995 Census Location 1994 Census Location 1.71 km NNE 3.76 km NNE 3.46 km NE 5.56 km NE 4.21 km ENE 2.78 km ENE 3.96 km SSE 4.19 km SSE 5.87 km SW 6.73 km SW 4.45 km WSW 4.32 km WSW 2.85 km NNW 3.76 km tmW Nearest Livestock / Dairy Milking animals within 5 miles (8 km) were located in the 16 sectors surrounding CPS. The cattle were used for nursing of calves and meat production (both own use and meat production).

Goats were found at one location that used the milk for human consumption.

Changes in the census locations for the nearest livestock / dairy were identified in 2 of the 16 sectors and are shown below:

i 1995 Census Location 1994 Census Location 3.46 km NE 5.63 km NE

>8 km S 6.49 km S 75

.f d.

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,; u,3 LIST OF REFERENCES i

i 1

V.

LIST OF REFERENCES ANSI 75 American National Standards

. Institute, Inc.,

1

" Performance, Testing and Procedural Specifications for Thermoluminescent Dosimetry," ANSI N545-1975.

ASTM 75 American Society for Testing and Materials, i

" Standard Recommended Practice for Dealing with l

Outlying Observations," ASTM E178-75.

4 CFR Code of. Federal Regulations, Title 10, Part 20 i

(Nuclear Regulatory Commission).

CL95 CPS 1995 Radioactive Effluent Release Report.

i 1

EI87

" Environmental Radioactivity," M. Eisenbud, 1987.

l EPA 72

" Natural Radon Exposure in the United States,"

Donald T.

Oakley, U.S.

Environmental Protection

'{

Agency.

ORP/SID 72-1, June 1972.

FRC60 Federal Radiation Council Report No. 1,

" Background Material for the-Development of Radiation Protection Standards," May 13, 1960.

ICRP77.

International Commission on Radiological Protection, Publication 2,

" Report of Committee II on Permissible Dose for Internal Radiation," (1959)_

with 1962 Supplement issued in ICRP Publication 6; l

Publication 9,

" Recommendations on Radiation

. Exposure,"

(1965);

ICRP Publication 7

(1965),

amplifying specific recommendations of Publication 26 (1977).

ICRP84 International Commission on Radiation Protection, Publication No. 39 (1984), " Principles of Limiting Exposure to the Public to Natural Sources of Radiation."

KA84

" Radioactivity in the Environment:

Sources, Distribution and Surveillance," Ronald L.

Kathren, 1984.

NCRP59 National Council on Radiation Protection and Measurements, Report No. 22, " Maximum Permissible Body Burdens and Maximum Permissible Concentrations of Radionuclides in Air and Water for Occupational Exposure,"

(Published as National' Bureau of Standards Handbook 69, issued June

1959, superseding Handbook 52).

77

i NCRP71 National Council on Radiation Protection and Measurements, Report No.

39,

" Basic Radiation

~

Protection Criteria," January 1971.

i NCRP75 National Council on Radiation Protection and Measurements, Report No.

44,

" Krypton-85 in the Atmosphere - Accumulation, Biological Significance, and control Technology," July 1975.

NCRP87a National Council on Radiation Protection and

-Measurements, Report No. 91,

" Recommendations-on Limits for Exposure to Ionizing Radiation," June 1987.

NCRP87b National Council on Radiation Protection and Measurements, Report No. 93,

" Ionizing Radiation Exposure of the Population of the United Statos,"

September 1987.

1 l

NR90 National Research

Council, 1990, Committee on Biological Effects of Ionizing Radiation (BEIR V),

Board on Radiation Effects Research on Life i

Sciences, "The Effects of Exposure to Low Levels of i

Ionizing Radiation".

NRC74 United States Nuclear Regulatory Commission, Regulatory Guide 5.36,

" Recommended Practice for 4

Dealing with Outlying Observations," June 1974.

NRC75 United States Nuclear Regulatory Commission, Regulatory Guide 4.1,

" Programs for Monitoring

' Radioactivity in the Environs of Nuclear Power Plants," Revision 1, April 1975. -

NRC77a United States Nuclear Regulatory Commission, i

Regulatory Guide 4.13,

" Performance, Testing and Procedural Specifications for Thermoluminescence Dosimetry:

Environmental Applications," Revision 1, July 1977.

NRC77b United Staties Nuclear Regulatory Commission, Regulatory Guide 1.109, " Calculation of Annual Dose to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR Part 50, Appendix I," Revision 1, October 1977.

NRC79a United States Nuclear Regulatory Commission Branch Technical

Position, "An Acceptable Radiological Environmental Monitoring Program,"

Revision 1,

' November 1979.

78

l NRC79b United States Nuclear Regulatory Commission Regulatory Guide 4.15,

" Quality Assurance for Radiological Monitoring Programs (Norm Operations)

- Effluent Streams and the Environment," Revision 1, February 1979.

NUREG86 Technical Specification, Clinton Power

Station, l

Unit No.

1, Docket No. 50-461, Office of Nuclear Reactor Regulation, 1986.

PERI 88 "The Use of Diatoms (Periphyton) in Monitoring Light Water Reactor Radioactive Liquid Effluence in the Susquehanna River," Ruth Patrick and John M.

Palms, 1988.

I TEPM Analytical Procedures

Manual, Teledyne Brown Engineering Environmental Services Midwest Laboratory (Northbrook, Illinois).

i USAR Illinois

Power, Clinton Power

Station, Updated Safety Analysis Report.

J i

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APPENDICES i

1 i

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1 1

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a a

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APPENDIX A I

Exceptions to the REMP During 1995

)

l

)

b A-1

Exceptions to the REMP During 1995 Data from the radiological analysis of environmental samples are routinely reviewed and evaluated by the Clinton Power Station Radiological Environmental Group.

This data is checked for LLD compliance, anomalous values, quality control sample agreement, and any positive results which are inconsistent with expected results or which exceed any Offsite Dose Calculation Manual reporting levels.

Reporting i

levels for radioactivity concentrations in environmental samples required by the Clinton Power Station Offsite Dose Calculation Manual are listed in Table A-1.

If an inconsistent result

occurs, an investigation is initiated which may consist of some of the following actions:

Examine the collection data sheets ~

for any indication of collection or delivery

errors, tampering, vandalism and equipment calibration or malfunctions due to electrical power

failore, weather conditions, etc.

Perform statistical tests Examine previous data for trends Review other results from same sample media and different sample media Review control station data Review quality control or duplicate sample data j

Review CPS effluent reports i

Recount and/or reanalyze the sample Collect additional samples as necessary During 1995, no investigations were performed as a result of reaching any Offsite pose calculation Manual (ODCM) reporting levels.

A?1 sample analysis required by the ODCH achieved the LLDs specified by ODCM Table 5.1-3.

Sampling 'and analysis exceptions are listed in Table A-2 of this appendix.

i A-2

TABLE A-1

'1 1

CPS REMP REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES

{

Water Airt)ome Particulate Fish Milk Food Products 3

i Analysis (pcin) orGases(pcvm )

(pci/kg, wet)

(pcin)

(pcukg, wet)

H-3 20,000a Mn-54 1,000 30,000 Fe-59 400 10,000 i

Co-58 1,000 30,000 Co-60 300 10,000 j

Zn-65 300 20,000 Zr/Nb-95 400 I-131 2'

O.9 3

100 Cs-134 30 10 1,000 60 1,000 Cs-137 50 20 2,000 70 2,000 Be/La 140 200 300 For drinking water samples. This is the 40 CFR Part 141 value. If no drinking water pathway exists, a value of a

30,000 pCin may be used.

b if no drinking water pathway exists, a value of 20 pCill may be used.

c Total for parent and daughter.

j d

This list does not mean these nuclides are the only ones considered. Other nuclides are identified and reported when applicable.

l A-3

TABLE A-2 SAMPLING AND numLYSIS EXCEPTIONS FOR 1995 1.

January 4 CL-6 air sampler elapsed timer malfunctioned. Actual time was used for sample volume calculation.

An operability check was performed the next day and the timer was working satisfactorily.

CL-7 air sampler found with the pump not running due to a blown fuse.

The fuse was replaced.

Elapsed timer indicated 166.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> of operation.

The sample was analyzed and determined to be reliable and considered

~

valid.

2.

January 18 CL-6 air sampler elapsed timer malfunctioned.

Actual time was used for sample volume determination and timer was replaced.

q 3.

January 25 CL-4 air sampler elapsed timer malfunctioned.

Actual time was used for sample volume determination.

4.

February 1 Air sampler elapsed timers off at CL-15 and CL-94 by 2.7 and 5.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> respectively due to a power outage caused by an ice storm during the sample period.

The elapsed timers were used for sample volume calculations.

5.

February 15 Air sampler pump at CL-94 found not working.

Light filter loading indicative of little run-time.

Discarded the sample and replaced the air sample pump.

6.

February 22 CL-94 air sampler found with filter head disconnected.

Discarded the sample and replaced the quick disconnect fitting.

Air sampler timer off at CL-6 by 8.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> due to a loss of power while maintenance was being performed on the 12 KV loop.

The elapsed timer was used for the sample volume calculation.

A-4

Milk unavailable at CL-98 due.to goats

" drying up" during the winter months.

7.

March 1 Air sampler timer off at CL-6 by 32.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> due to a loss of power while maintenance was being performed on the 12 KV loop.

The elapsed timer was used for the sample volume calculation.

8.

March 8 Air sampler elapsed timers off at CL-94 and CL-3 by 3.0 and 2.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> each.

The reason is due to loss of power while maintenance was performed on the power lines by the electric utility. The elapsed timers were used for the sample volume calculations.

Air sampler timer off at CL-6 by 4 9. 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> due to a defective timer.

Actual time was used for sample volume calculation and timer was replaced.

9.

March 15 Air sampler elapsed timer off at CL-6 by 2.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> due to a power outage caused by thunderstorms during the sample period.

The elapsed timer was used for sample volume calculation.

10.

March 29 CL-4 air sample elapsed timer was found not working.

A new timer was installed.

Actual time used for sample volume calculation.

Milk unavailable at CL-98 due to goats

" drying up" during the winter months.

11.

April 26 Air sampler elapsed timers off at CL-4 and CL-6 by 11.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> due to a power outage caused by thunderstorms during the sample period.

The elapsed timers were used for sample volume calculations.

Milk unavailable at CL-98 due to goats

" drying up" during the winter months.

12.

May 17 Air sampler elapsed timer off at CL-1, CL-4 and CL-6 by 5.0, 2.9 and 2.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> due to a power outage caused by thunderstorms during the sample period.

The elapsed timers were used for sample volume calculations.

A-5 I

1 l

13.

May 31 Air sampler elapsed timers off at CL-94 and CL-15 by 6.3 and 6.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> due to a

power outage caused by thunderstorms during the sample period.

The elapsed timers were used for sample volume calculations.

14.

June 21 Air sampler elapsed timer off at CL-8 by 4.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> due to a power outage caused by thunderstorms during the sample period.

The elapsed timer was used for sample volume calculation.

15.

June 28 Air sampler elapsed timer off at CL-15 by 1.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> due to a power outage caused by thunderstorms during the sample period.

The elapsed timer was used for sample volume calculation.

Unable to obtain vegetation samples at CL-115 due to inadequate plant growth.

Slowed plant growth was attributed to herbicide carryover from an adjacent cornfield.

16.

July 12 Air sampler at CL-6 found with elapsed timer off by 3.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />.

The reason for this was unknown.

The elapsed timer was used for sample volume calculation.

17.

July 19 Air sampler at CL-6 found de-energized with 66.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> of operation.

Cause (tampering) determined to be related to power being shut off manually at-the electrical safety switch.

The sample was considered invalid and discarded due to having an inadequate volume collected.

18.

August 9 Air sampler elapsed timers off at CL-4 and CL-6 by 4.2 and 4.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> due to a

power outage caused by thunderstorms during the sample period.

The elapsed timers were used for sample volume calculations.

19.

August 16 Air sampler elapsed timers off at CL-1 by 3.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, and CL-4 and CL-6 by 0.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> due to a power outage caused A4 i

by thunderstorms during.the sample period.

The elapsed timers were used for sample volume calculations.

20.

August 23 CL-15 air sarapler elapsed timer was found not working.

Actual time was used for sample volume calculation and a new timer was installed.

Air sampler at CL-8 found recently seized. Replaced air sample pump.

As left values used for sample volume 3

calculation.

Analysis result was consistent with other stations' air sample results and considered valid.

21.

September 13 CL-15 air sampler elapsed timer was found not working.

Replaced air sample pump.

Due to light filter loading, filter media was discarded.

4 22.

September 27 CL-2 was found with the particulate filter paper damaged i

causing it to be effectively by-passed.

The analysis of i

the data indicated the sample to be unreliable and inconsistent with other air sample results for the sampling period.

23.

October 18 Air sampler elapsed timer of f at CL-8 by 13.4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> due to a power outage for maintenance in the area.

The elapsed timer was used for sample volume calculation.

Air sampler at CL-2 found with elapsed timer off by 0.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.

The reason for this was unknown.

The elapsed timer was used for sample volume calculation.

24.

October 25 i

Air sampler at CL-6 found running with an elapsed timer value of 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br />.

The reason for this is a power outage due to maintenance on the 12 KV bus.

The sample was considered invalid and discarded due to having an inadequate volume collected.

25.

November 1 Air sampler at CL-94 found with elapsed timer off by 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />.

The reason for this was unknown.

The elapsed timer was used for sample volume calculation.

A-7

/

l 26.

November 8 j

Review of air sample analysis results for CL-6.not consistent with other air sample stations.

Analysis Lab contacted and the filter was found to be damaged causing it to be effectively by-passed.

The analysis of the data indicated the sample to be unreliable and inconsistent with other air sample results for the sampling period.

27.

November 15 4

Air sample pump at CL-6 found not running with 88 hours0.00102 days <br />0.0244 hours <br />1.455026e-4 weeks <br />3.3484e-5 months <br /> on the elapsed timer.

Replaced air sample pump.

The.

sample was considered invalid and discarded due to having an inadequate volume collected.

28.

November 29 Air sample pump at CL-1 found seized.

The analysis of the data indicated the sample to be unreliable and inconsistent with other air' sample results for the sampling period.

29.

December 6 Air sample pump at CL-2 found seized.

The analysis of the' data indicated the sample to be unreliable and inconsistent with other air sample results for the

)

sampling period.

30.

Air sample pump at CL-6 found with a very low flowrate.

The exact cause was unknown. The analysis of the data indicated the sample to be unreliable and inconsistent with other air sample results for the sampling period.

31.

December 27 No grass samples collected due to snow cover I

A-8

1 l

i AlPENDIX B REMP Sample Collection and Analysis Methods i

l l

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v

TABLE B-1 CLINTON POWER STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

OF SAMPLE CCLLECTION AND ANALYSIS METHODS Approximate Teledyne Sample Sampling Sample Size Procedure Procedure Analysis Medium Method Collected Number Abstract Gross Beta AP Continuous air 280m3 TIML-AP-02 Sample counted !n a low sampling level gas flow proportional through filter counter media WN Grab 7.6 (

TIML-W(DS)-01 Sample evaporated on a stainless steel planchette for low-level gas flow proportional counting SW Grab 3.8 (

TIML-W(DS)-01 Sample evaporated on a stainless steel planchette for low-level gas flow proportional counting SW Composite 38(

TIML-W(DS)-01 ' Sample evaporeted on a stainless steel planchette forlow-leve gas flow proportional counting VE Grab 2.5kg TIML-AB-01 Sample ashed forlow-level gas flow proportional counting I

l BS Grab 1.5-2.0kg TIML-AB-01 Sample pulverized and i

dried for low-level gas flow l

proportional counting SS Grab 1.5-2.0kg TIML-AB-01 Sample pulverized and dried for low-level gas flow proportional counting DN Composite 3.8 (

TIML-W(DS)-01 Sample evaporated on a stainless steel planchette for low-level gas flow proportional counting SO Grab 1.Okg TIML-AB-01 Sample pulverized and dried for low-level gas flow proportional counting B-3

i i

l TABLE B-1 (Cont'd)

Approximate Teledyne i

Sample Samplen0 Sample Size Procedure Procedure Analysis Medium Method Collected Number Abstract Gamma AP Composite 3640m3 TIML-GS 01 Germanium gamma isotopic Spectroscopy analysis G

Grab 1.Okg TIML-GS-01 Germanium gamma isotopic analysis WN Grab 7.6 (

TIML-GS-01 Germanium gamma isotopic analysis SW Composite 3.8 (

TIML-GS-01 Germanium gamma isotopic analysis l

VE Grab 2.5kg TIML-GS-01 Germanium gamma isotopic analysis BS Grab 1.5 - 2.0kg TIML-GS-01 Germanium gamma isotopic analysis j

1 SS Grab 1.5 - 2.0kg TIML-GS-01 Germanium gamma isotopic analysis SL Grab 0.3 - 6.Okg TIML-GS-01 Germanium gamma isotopic analysis F

Grab -

2.5kg TIML-GS-01 Germanium gamma isotopic analysis j

ME Grab 3.0kg TIML-GS-01 Germanium 3amma isotopic l

i analysis DN Composite 3.8 ( -

TIML-GS-01 Germanium gamma isotopic analysis SW Grab 3.8 (

TIML-GC-01 Germanium gamma isotopic analysis SO Grab 1.0kg TIML-GS-01 Germanium gamma isotopic analysis M

Grab 38(

TIML-GS-01 Germanium gamma isotopic analysis Direct TLD Continuous FM TIMu-TLD-01 Integratic7 of thermally Radiation Exposure stimulated visible photons B-4

TABLE B-1 fCont'd)

Approximate Teledyne l

Sample Samplino Sample Size Procedure Procedure Analysis Medium Method Collected Number Abstract Gross Alpha SW Composite 3.8 (

TIML-W(DS)-01 Sample evaporated on a (cont'd) stainless steel planchette for low-level gas flow proportional counting l

l WW Grab 7.6 (

TIML-W(DS)-01 Sample evaporated on a stainless steel planchette for low-level gas flow proportional counting BS Grab 1.5 - 2.0kg TIML-AB-01 Sample pulverized and dried for low-level gas flow proportional counting DW Composite 3.8 (

TIML-W(DS)-01 Sample evaporated on stainless steel planchette for low-level gas flow proportional counting SO Grab 1.0kg TIML-AB-01 Sample pulverized and dried for low-level gas flow proportional counting SS Grab 1.5 - 2.Okg TIML-AB-01 Sample pulverized and dried for low-level gas flow proportional counting Sr-90 BS Grab 1.5 - 2.0kg TIML-SR-06 Hydrochloric acid leach and low-level gas flow proportional counting i

SS-Grab 1.5 - 2.0kg TIML-SR-06 Hydrochloric acid teach and j

. Iow-level gas flow I

proportional counting M

Grab 38(

TIML-SR-07 Sample chemically separcted and dried for low-level gas flow proportional counting Tritium SW Composite 38(

TIML-T-02 Distillation followed by counting in a liquid scintillation counter DN Composite 38(

TIM L-T-02 Distillation followed by counting in a liquid scintillation counter B-5

. _ ~ ~ _ _.

TABLE B-1 iCont'd) l Approximate Teledyne Sample Sampling Sample Size Pmeedure Procedure -

Analysis Medium Method Collected Number Abstract l

Tritium SW Grab 11.4(

TIML-T-02 Distillation followed by (cont'd) counting in a liquid scintillation counter j

WW Grab 22.8(

TIML-T-02 Distillation followed by counting in a liquid scintillation counter l

SW Grab 3.8 (

TIML-T-02 Distillation followed by counting in a liquid scintillation counter l-131 NE Grab 1.4kg TIML-GS-01 Germanium gamma isotopic analysis Al Continuous air 280m3 TIML-l-131-02 Germanium gamma isotopic sampling analysis through filter media SW Grab 3.8 (

TIML-l-131-03 lon exchange and proportional beta counting VWV Grab 7.6 (

TIML-i-131-03 lon exchange and l

proportional beta counting G

Grab 1.Okg TIML-GS-01 Germanium gamma isotopic analysis M

Grab 3.8 (

TIML-l-131-01 lon exchange and proportional beta counting i

B-6

i TABLE B-2 1995 REMP SAMPLING AND ANALYSIS FREQUENCY

SUMMARY

l

\\

i Number of Number of Number of j

Sample Sampling Collection Samples Type of Analysm Samples 1

Type Locations Frequency Colleded Analysis Frequency Analyzed

• Air Particulate 10 Weekly 519 Gross Beta Weekly 519 j --

Gamma Isotopic Quarterly Composite 40 Air lodine 10 -

Weekly 519 lodiae-131 Weeldy 519 1

Dired Radiation 86 Quarterly 344 Gamme Exposure Quarterty 344 (TLD) -

( ontinuous)

Surface Water 3

Monthly 36 Gamrna Isotopic Monthly 36 (Grab)

Tritiuma a

Quarterly Composite 32 Gross Beta Monthly 36

]

I Surface Water 1

Monthly 10 Gamma Isotopic Monthly 10 l

(Intake Composite)

Tritium Monthly 10 Gross Beta Monthly 10 Surface Water i

Monthly 12 C:mma Isdtopic Monthly 12 (Emuent Composite)

Gross Beta Monthly 12 Gross Alpha Monthly 12 i

Tritium.

Quarterly Composite - 4 lodine-131 Monthly 12 Surface Water 2

Monthly 24 Gamma Isotopic Monthly 24 (Upstream Composite)

Gross Beta Monthly 24 Gross A!pha Monthly 24 Tritium Quarterly Composite B

Well Water 2a Semimonthly 78 lodine-131 Semimonthly 78 Gross Alpha Monthly Composite 36 Gross Beta Monthly Composite 36 Gamma Isotopic Monthly Composite 36 Tritium Quarterly Composite 12 Drinking Water 1

Monthly 12 Gross Alpha Monthly 12 Gross Beta Monthly 12 Gamma Isotopic Monthly 12 Tritium Guarterly Composite 4

Bottom Sediments 7

Semiannually 15 Gross Alpha Semiannually 15 Gross Beta Semiannually 15 Gamma tsotopic Semiannually 15 St-90 Semiannually 15 B-7

._=

TABLE B-2 (Cont'd)

Number of Number of Number of Sample Sampling Collection Samples Type of Analysis Samples Type Locations Frequency Collected Analysis Frequenry Analyzed

• Shoreline 7

Semiannually 14 Gross Alpha Semiannually 14 Sediment Gross Beta Semiannually 14 Gamma Isotopic Semiannually 14 Sr-90 Semiannually 14 b

Aquatic 6

Semiannually / Bimonthly 22 Gamma Isotopic Semiannually / Bimonthly 22 Vegetation Grass 5

Monthly / Semimonthly 90 Gamma Isotopic Monthly /Semimonthiy 90 C

(including 1-131)

Vegetables 4

Monthly (during growing 4

Gross Beta Monthly 45 season)

Gamma isotopic Monthly 4

(including 1-131)

Fish 2

Semiannually 16 Gamma isotopic Semiannually 16 Milk 2

Monthly /Semimonthlyc 34 Gamma Isotopic Monthly / Semimonthly 34 lodine-131 Monthly / Semimonthly 34 Sr-90 Monthly / Semimonthly 34 Meat 1

Annually (when available) 3 Gamma isotopic Annually 3

(including 1-131) d Soit 10 Triannually/ Annually 1

Gross Alpha Triannually/ Annually 1

Gross Beta 1

Gamma Isotopic 1

Number of samples ant'yzed does not include duplicate analysis, recounts or reanalysis.

Samples coliected at CL-12 are taken prior to water treatment and after water treatment.

a b

Samples are collected semiannually at CL 105 and bimonthly at all other locations from April through Odober.

Sampfes are collected monthly from November through Apnl and semimonthly May through October, c

d Samples are collected annually at CL-16, triennially at all other locations.

B-8

. - ~.

TABLE B-3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility: Clinton Power Station Docket Nq.50-461 Location of Facility: DeWitt, Ilhnois Reporting Period January 1 - December 31,1995 (county, state)

Medium er Type of lower Limit AllIndicalor location with Control Number of Pathway Sampled Analysis d

Locations:

Highest Annual Mean locations:

Nonroutine (Unit of Total Number Detection Mean (f)

Name Mean(O Mean (O Reported Measurement)

Performed (U D)

(Range)

Distance and Direction (Range)

(Range)

Measurements IMrect Radiation HD NA 17.9(324324)

Cb83 20.7(4'4)

• 17.8(20/20) 0 (mR/qtr) 344 (l1.8-25.0) 0.5 miles NNW (19.0 - 22.7)

(14.2 22.4)

Air Particulates Gross Beta NA 0.021(466/466,-

Cb3 0.022(52'52) 0.021(53/53) 0 l

3 (pCl/m )

519 (0.006 0.04) 0.7 miles NE (0.010 - 0.044)

(0.008- 0.042)

]

Gamma Spec 40 Ile-7 NA 0.086(36/36)

Cb4 0.099(4/4) 0.079(4'4) 0 (0.048-0.136) 0.8 miles SW (0.066 0.136)

(0.063 0.089)

K-40 0.028 IID 11D llD 0

Co-60 0.0012 LID IlD UD 0

Nb-95 0.0060 LID IlD UD 0

Zr-95 0.0022 IID IlD LID 0

Ru-103 0.0018 UD UD llD 0

Ru-106 0.0105 IID IID 11D 0

Cs 134 0.0012 IlD UD llD 0

Cs-137 0.0008 IID IID llD 0

Ce-141 0.0031 UD LID LID 0

Ce-144 0.0065 llD UD 11D 0

Air Indine 1131 0 07 11D UD LID 0

3 (pC1/m )

519 Surface Water Gross Eleta

3. 5 2.4(66/70)

Cb90 2.8(12/12) 2.2(12'12) 0 (pC11) 82 (1.2 - 5.2 )

0.4 miles SE (1.2 - 5.2)

(1.0 3.1)

Gross Alpha 3.0 1.8(7/36)

C L99 2.3(3/12)

NA 0

36 (0.7 4.2) 3.5 miles NNE (1.1 42)

Tritium 173 UD UD llD 0

34 Note: Column explanations at the end of Table B-3.

B-9

l l

TABLE B-3 (cont'd_1 t

I l

Medrum or Type of Lower Lirnit AllIndicator location with Control Number of Pathway Sampled Analysis

.of locations:

Highest AnnualMean locations:

Nonroutine (Unit of Total Number Detection Mean (f)

Name Mean(O Mean (f)

Reported Mresurement)

Perfonned (LIE)

(Range)

Distance and Direction (Range)

(Ran;;e)

Measurements l

Surface Water I-131 0.5 llD 11D LLD 0

l (tunt'd) 12 Gamam Spec 82 l

Ik.7 34.0 LID IlD llD 0

i K-40 46.6 IlD 11D UD 0

Mn-54 2.8 IlD LLD UD.

O Fe-59 7.3 IID LLD llD 0

Co-58 3.0 llD IID llD 0

Co-60 3.4 U.D LLD llD 0

Zn45 6.4 IlD IlD 11D 0

Nb-95 3.8 LID IID llD 0

Zr-95 7.7 IJD IID llD 0

Cs-134 3.4 UD UD 11D 0

Cs 137 3.3 LID UD UD 0

11a.140 11.4 UD IID llD 0

La-140 6.9 LID IID IlD 0

Cc-144 43.4 UD IID llD -

0 Drinking Water Gross lleta 2.3 1.9(11/12)

CL 14 1.9(l l'l 2)

KA 0

(pWI) 12 (1.2 - 2.3)

O miles (1.2 - 2.3)

Gross Alpha 1.3 0 6(1/12) 0 6(l'12)

NA 0

12 Tritium 1 73 11D llD NA 0

4 Gamma Spec 12 ik.7 29.2 IID IlD NA 0

I K-40 44.0 IID

' *)

NA 0

l i

Mn-54 2.5 llD IlD NA 0

Fe-59 6.2 LID IJD NA 0

Co-58 2.9 IlD IID NA 0

Co-60 3.0 llD LID NA 0

7a-65 5.6 IlD IJD NA 0

i Nb-95

3. 2 IlD UD NA 0

Zr 95 6.0 LID UD NA 0

Cs134 3.1 IID UD NA 0

Cs-137 2.6 IID IlD NA 0

i i

Ba-140 9.3 LID IID NA 0

i 1.a-140 50 IJD IID NA 0

B-10

_ _. ~.._... -. --

a i

TABLE B-3 icont'd)

I l

Medium or Type of lower Umit AllIndicator location with Control Number of j

Pathway Sampled Analysis d

laations:

liighest Annual Mean Imations:

Nonroutine i

(Unit of Total Number Detection Mean (f)

Name Mean(f)

Mean (f)

Reported Measurement) performed (UD)

(Range)

Distance and Direction (Range)

(Range)

Measurements 1

Drinidng Water Cc-144 43.3 UD UD NA

'O (cent'd)

Well Water Gross Beta 3.6 2.4(11/36)

Cl-12U c 3 3(3/12)

NA 0

l (pCl/l) 36 (l.2 - 4.7) 1.6 miles E (2.6 - 4.7) l Gms: Alpha 4.0 1.7(3/36)

Cl 12T 2.3(1/12)

NA 0

36 (1.3 23) 1.6 miles E t

!.131 0.5 UD UD NA 0

78 Tritium 1 73 UD LLD NA 0

12 l

l Gamma Spec 36 l

Ik-7 31.2 LID LID NA 0

l 1

K-40 45.7 UD LID NA 0

Mn-54 3.4

' Lib UD' NA ~

0

)

l Fe 59 7.6 UD' LLD NA 0

Co-58 3.3 UD UD NA 0

Co-60 3.4 llD LID NA 0

Zn45 6.3 LLD UD NA 0

f Nb-95 4.1 UD IID NA 0

1 Zr-95 7.2 LID UD NA 0

Cs-134 3.1 LID LLD NA 0

Cs 137 2.9 UD UD NA 0

Ih-140 9.5 llD UD NA 0

La 140 6.0 UD llD NA 0

Ce-144 43.2 UD llD NA 0

Milk (pCL1) 1131 0.6 UD UD UD 0

34 Sr-90 NA 1.5(16/16)

Cl 98 1.5(16/16) 1.5(19/19) 0 34 (0.9 2.4) 3.7 miles SSW (0.9 - 2.4)

(0.9 2.2)

Gamma Spec 34 Ek-7 32.3 UD LlD UD 0

K-40 1949(16/16)

Cl 98 1949(16/16) 1347(19/19) 0 (1400- 2160) 3.7 miles SSW (1400 - 2160)

(1810- 1420)

Mn-54 3.4 UD LlD IID 0

Fe-59

8. I UD UD LID 0

Co 58 3.4 IID IJD UD 0

B-11

TABLE B-3 (Cont'd)

Medium or Type of lowerlimit AllIndicator location with Control Number of Pathway Sampled Analysis d

locations:

Ifighest AnnualMean locations:

Nonroutine (Unit of Total Number Detection Mean (O Name Mean(0 Mean(O Reported Measurement)

Performed (ILD)

(Range)

Distance and Direction (Range)

(Range)

Measurements Milk (cont'd)

Co-60 5.4 11D 11D LID 0

Zn45 9.6 11D IID Ul) 0 Nb-95 3.7 UD IlD llD 0

Zr 95 8.1 IID UD IID 0

Cs 134 4.3 11D IID 11D 0

Cs-137 4.0 11D IlD UD 0

ih-140 12.5 IID IID 11D 0

12-140 3.3 11D UD 11D 0

Ce 144 48.3 UD IID llD 0

1%h (p Cl /g net)

Gamma Spec

=

16 Ik-7 0.13 IlD 11D 11D 0

K-40 2.85(&T)

Cl-19 2 85(&'8) 2.76(& 8) 0 (2.16 3.25) 3.4 miles E (2.16 - 3.25)

(2.16 3.26)

Mn-54 0.012 IlD LLD IlD 0

Fe-59 0.036 llD IJD UD 0

Co-58 0.012 UD IlD 11D 0

Co-60 0.011 11D UD llD 0

Zn-65 0.021 IlD UD Ul) 0 Nb-95 0.016 11D LID llD 0

Zr 95 0.028 IlD IlD UD 0

Ru-103 0.016 IlD UD 11D 0

Ru-106 0.078 LID UD LID 0

Cs 134 0.012 IID LID 11D 0

Cs-137 0.012 LlD LID 11D 0

Ba-140 0.036 IJD llD 11D 0

12-140 0.007 11D LLD 11D 0

Ce-141 0.030 IID UD UD 0

Cc-144 0 058 IID 11D llD 0

Bottom Gross Deta 9.01 17.77(13/13)

Cl-105 2669(17) 26.69(2 2)

O Sediments 15 (9.01 26.77) 50 miles S (23 36 - 30.0I)

(23.36 - 30 01) i (pO/g dry)

Gross Alpha 5 47 9.86(8/13)

Cl-10 15.59(2/2) 13.97(2'2) 0 15 (4.56 - 15.94) 5.0 miles ENE (15.23 - 15.94)

(12.03 15.91)

Sr 90 0.013 0.015(5/13)

Cl,105 0 018(2/2) 0018(22) 0 15 (0.010- 0.025) 50 miles S (0 015- 0.020)

(0.015 0.020) l l

Gamma Spec 15 I

l B-12 l

TABLE B-3 (Cont'd)

Medium or Type of lower limit AllIndicator location with Control Numberof Pathway Sampled Analysis d

Locations:

liighes' Annual Mean locations:

Nonroutine (Unit of Total Number Detection Mean (f)

.Name Mean(f)

~ Mean (f)

Reported Measurement)

Performed (LID)

(Range)

Distance and Direction (Range)

(Range)

Measurements Bottom Be-7 0.42 0.30(5/13)

Cl-7C 0.32(3/3)

UD 0

Sediments (0.22 0.48) 1.3 miles SE (0.22 -0.48)

(cont'd) l K-40 15.24(13/13)

Cl 105 21.54(2/2) 21.54(2/2) 0 l

(8.93 - 20.06) 50 miles S (20.35 - 22.72)

(20.35 - 22.72)

Mn-54 0.050 LID UD UD 0

Fe 59 0.080 IlD IID 11D 0

Co-58 0.038 IID L1D IID 0

Co-60 0.076 IID IID llD 0

2n45 0.16 llD LLD L1D 0

Nb-95 0.076 11D 11D UD 0

l Zr-95 0.140 llD UD UD 0

Cs 134 0.073 UD UD UD 0

l Cs 137 0.022 0.15(9/13)

CL 105 0.39(2/2) 0.39(2/2) 0 (0.008 - 0.32; 50 miles S (0.36- 0.41)

(0.36 0.41) th-140 0.14 UD IID LID 0

La-140 0.036 LLD IlD llD 0

Ce-144 0.28 llD 11D LID 0

Ac-228 0.74(13/13)

C1-105 1.40(2/2) 1.40(2.2) 0 (0.26 134) 50 nules S (1.32-1.47)

(1.32 1.47)

Di-212 0,.23 0.78(11/13)

Cl 105 1.35(27) 1.35(2/2) 0 (0.15-1.33) 50 miles S (1.35)

(1.35 )

Di 214 0.49(13/13)

CL 105 0.99(2/2) 0.99(2"2) 0 (0.13 0.96) 50 miles S (0.59-1.38)

(0.59 1.38)

Pb-212 0.72(13/13)

C1-105 1.48(2/2) 1.48(l'2) 0 (0.19-1.30) 50 miles S (1.28-1.67)

(1.28-1.67)

Pb-214 0.59(13/13)

Cl-105 1.23(T2) 1.23(2'2) 0 (0.20-1.18) 50 mtles S (0.94-1.51)

(094 1.51)

Ra-226 0 42 1.24(12/13)

Cl 105 2.29(2/2) 2.29(2'2) 0 (0.31-2.23) 50 miles S (1.86-2.71)

(l.86-2.71)

TI-208 0 23(13/13)

Cl-105 0.51(2/2) 0.51(2'2) 0 (0.07-0.42) 50 miles S (0 45- 0.56)

(0 45-0.56)

Shoreline Gross Deta 9.03(12/12)

CL 89 12.75(2/2) 10.85(2/2)

O Sediment 14 (4 63 16.45) 3.6 nules NNE (9.04 - 16.45)

(9.98-11.72)

(pCl/gdn)

Gross Alpha 5.99 3 60(5/12)

CL-89 4 85(2/2) 11D 0

14 (l.56 7.40) 3.6 miles NNE (2.29 7.40)

Sr-90 0 012 11D UD LJD 0

Gamma Spec 14 B-13 l

l 1

2 _

_._______._..-_____m..

TABLE B-3 iCont'd)

Medmm w Type of lower Limit AllIndicator location with Control Number of Pathway Sampled Analysis cf locations:

Highest Annual Mean locations:

Nonroutine (Unit of Total Number Detection Mean (f)

Name Mean(f)

Mean (O Repwted Measurement)

Performed (LLD)

(Range)

Distance and Direction (Range)

(Range)

Measurements Sherdine He 7 0.20 -

0.23(3/12)

Cbs9 0.26(2 2) 11D

.O i

. Sedimients -

(0.18 0.27) 3.6 miles NNI 0.25-0.27)

(cent'd) j K-40 9.62(12/12)

CL 7B 12.99(2'2) 10.36(2/2) 0 (5.84 14.89) 2.1 miles SE (12.43 13.54). (9.78 - 10.94)

Mn-54 0.022 IlD IlD llD 0

I Fe 59 0.078 IlD UD 11D 0

Co-58 0.039 IlD UD UD 0

Co-60 0.026 llD LlD llD 0

Zn-65 0.098 UD UD llD 0

Nb-95 0.037 IlD IlD IID 0

Zr-95 0.064 UD-UD IlD 0

Cs-134 0.047 IlD LLD LID 0

7 Cs-137 0.031 0.034(2/12)

CL-89 0.034(1 2)

LLD 0

i (0.021- 0.046) 3.6 miles N3E (0.021 0.046) th 140 0.061 UD UD llD 0

12 140 0.027 LID LID UD 0

Ce-144 0.19 IlD llD llD 0

i Ac 228 0.28(12/12)

CL-7D 0.55(2 2) 0.16(2/2) 0 (0.12- 0.63) 2.i miles SE (0 46- 0.63)

(0.15 0.16)

Di-.212 0.42 0,32(7/12)

Cle7B 0.53(l 2)

Q 17(2'2) 0 (0.16 0.63) 2.1 miles SE (0.17) l l

Di-214 0.18(12/12)

Cl 89 0.30(2 2) 0.10(2/2) 0 (0.065 0.41) 3.6 miles NNE (0.19- 0 41)

(0.10) ~

Pb-212 0.24(12/12)

Cl-7B 0.48(2 2)

~ 0.13(11) 0 (0.08 -0.60) 2.1 miles SE (0.40 - 0.56)

(O. I1 - 0.15)

Pb-214 0.21(12/12)

Cl 89 0.36(2 2) 0.13(1 2) 0 (0.09 0.49) 3.6 miles NNE - (0.22 - 0.49)

(0.11- 0 I5)

Ra 226 0.67 0.45(9/12).

Cl,7B 0.95(1 2) 0.28(1 2) 0 (021 1.14) 2.1 miles SE (0.26 0.30)

T1-208 0.09(12/12)

CL 89 0.15(2 2) 0.06(2'2) 0 (O.03 - 0.20) 3.6 nules NNE (0.09 0.20)

. (0.05 0.06) i Aquatic Gamma Spec

+

Vegetation 22 (PCVg wet) i 1

\\

Ik-7 0.90 LO6(14/20)

Cl,9 I.36(3 4) 0.39(1/2) 0 (0.43 - 2.27) 2.7 miles ESE (0.55 2.27)

K-40 1.02 2.07(19/20)

C1,19 2.70(4 4) 1.63(2 2) 0 (0.60- 5.46) 3.4 mito E (1.21-5.46)

(1.57-1.68) l Mn-54 0 045 llD IlD UD 0

I~e ',9 0.16 llD IlD llD 0

cc 58 0.041 UD UD llD 0

B-14

\\

TABLE B-3 (Cont'd) l Medium or Type of lower Umit AllIndicator location with Contro Numberof Pathway Sampled Analysis d

locations:

liighest Annual Mean locations:

Nonrouthw (Unit of Total Number Detection Mean (f)

Name Mean(f)

Mean (f)

Reported Measurenent)

Performed (LLD)

(Range)

Distance and Direction (Range)

(Range)

Measurements l

l i

Aquatic Co-60 0.048 UD 11D 11D 0

Vegetation i

(cont'd)

Zn-63 0.11 IID IlD LID 0

Nb-95 0.079 IlD 11D 11D 0

Zr-95 0.093 IlD IlD LID 0

Cs-134 0.050 llD IlD UD 0

Cs-137 0.051 0.050(9/20)

C1 19 0.0 70(2/2) 0.028(2/4) 0 (0.028 - 0.088) 3.4 miles E (0.052-0.088)

(0.025 0.030)

Ih-140 0.12 UD IID LID 0

La 140 0.042 LID UD llD 0

Cc-144 0 21 UD 11D llD 0

Vegetables Gross Beta 4.51(33/33)

Clel18 5.24(12/12) 4.07(1112) 0 (pC1/g wet) 45 (2.34 -10.13) 0.7 miles NNE (2.53 - 10.13)

(2.15 6.98)

Gamma Spec 45 Ik 7 0.15 0.19(2133) ~

C1,115 0.22(6/9) 0.16(10 12) 0 (0.09 - 0.42) 0.7 miles NE (0.09 - 0.42)

(0.07 - 0.25)

K-40 4 24(33'33)

Cl 118 4.85(12/12) 3 95(12 12) 0 (1 48 - 9.14) 0.7 miles NNE (1.48-9.14)

(2.19-6 40)

Mn-54 0.012 UD 11D llD 0

Fe-59 0.025 LID UD 11D 0

Co-58 0.015 llD LID llD 0

Co-60 0.016 ilD IlD LLD 0

Zn45 0.029 11D UD LID 0

Nb-95 0.015 11D UD L1D 0

Zr-95 0.022 LID IID UD 0

1 131 0.028 IlD 11D llD 0

Cs-134 0.015 11D IlD llD 0

Cs137 0.013 LID IlD LID 0

th 140 0.037 11D llD llD 0

12-140 0.019 LID 11D LlD 0

cc-144 0.17 llD LID IID 0

Grass (pCVg wet) Gamma Spec 90 Ik-7 3.61(54/54)

Clell6 3.97(18/18) 3.82(36 36) 0 (0.35 - 1If 5) 14 miles WSW (0.60 - 12.20)

(0.28 12.24) j K-40 5.65(54/54)

Cl 8 6.20(l8/18) 6.06(36 36) 0 (2.23-10.61) 2.2 miles E (2.59 - 10.61)

(1.45-11.79)

Mn-54 0.020 llD UD IID 0

1 B-15

TABLE B-3 (Cont'd) hiedium or Type of lower Umit AllIndicator

' location with Control Number of Pathway Sampled Analysis d

locations:

liighest Annual Afcan locations:

Nonroutine (Unit of Total Number Detection Mean (0 Name Mean(f)

Mean (f)

Reported Measurement)

Performed (llD)

(Range)

Distance and Direction (Range)

(Range)

Measurements Crass (cont'd)

Fe-59 0.034 IlD UD UD 0

Co-58 0.017 11D UD 11D 0

Co 60 0.026 11D UD UD 0

Zn45 0.072 11D UD UD 0

Nb-95 0.033 llD IID 11D 0

Zr-95 0.041 LID UD llD 0

1-131 0.049 UD I1D UD 0

Cs-134 0.028 IlD 11D llD 0

Cs 137 0.069 LID UD llD 0

lla-140 0.073 llD LID UD 0

la.140 0.021 UD IlD llD 0

Cc-144 0.16 IlD LLD llD 0

Meat (pCVg w et)

Gamma Spec 3

Be-7 0.43 11D UD O

i K-40 1.40 2.45(2/3)

C1,106 2.45(2/3)

NA 0

(2.36-2.53) 2.0 miles NNE (236 2.53)

Mn-54 0.042 UD UD NA 0

Fe-59 0.089 llD IID NA 0

Co-58 0.063 11D llD NA 0

Co-60 0.046 llD IlD NA 0

Ins 5 0.15 llD llD NA 0

Nb-95 0.042 IID llD NA 0

Zr-95 0.056 IID 11D NA C

Ru-103 0 042 UD UD NA 0

Ru-106 0.320 llD LID NA 0

1 131 0.18 11D LID NA 0

Cs-134 0.048 IID UD NA 0

Cs-137 0.038 LID 11D NA 0

Da 140 0.14 LID IID NA 0

la 140 0 019 UD LID NA 0

Cc-141 0.082 11D IID NA 0

Ce 144

0. I 8 IlD 11D NA 0

Soll(pO/g dry)

Gross lieta 21.86(1/l)

Cl-I t<

21 86(1/l)

NA 0

1 0.6 miles ESE Gross Alpha 12.03(1/1)

CL t K 12 01(1/l)

NA 0

1 0 6 miles ESE Gamma Spec 1

lie-7 0.18 UD llD NA 0

{

K.40 17.71(1/l)

Cl,1K 17.71(1/1)

NA 0

0.6 nules ESE B-16

i l

TABLE B-3 (Coat'd)

Medium or Type of lowerIJmit AllIndicator Location with Control Number of l

Pathway Sampled Analysis d

locations:

liighest Annual Mean locations:

Nonroutine (Unit of Total Number Detection Mean (O ~

Name Mean(f)

Mean (O Reposted Measurement)

Performed (LLD)

(Range)

Distance and Direction (Range)

(Range)

Measurements i

SoE (cent'd)

Mn-54 0.015 UD UD NA 0

Fe-59 0 033 UD IID NA 0

Co-58 0.017 UD LID NA 0

Co-60 0.019 11D UD NA 0

Zn-65 0.070 IID UD NA 0

Nb-95 0.042 IID UD NA 0

Zr-95 0.036 UD UD NA 0

Cs-134 0.022 UD UD NA 0

Cs 137 0.018 IID llD NA 0

ih-140 0.056 IlD UD NA 0

La 140 0.012 IlD UD NA 0

Ce-144 0.11 IID IID NA 0

Ac-228 0.79(1/1)

Cl-16C 0.79(1/l)

NA 0

0.6 miles ESE Ili 212 0.50(1/1)

CL-16C 0.50(1/l)

NA 0

0.6 miles ESE ili-214 0.56(1/1)

CL-16C 0.56(1.1)

NA 0

0.6 miles ESE Pb-212 0.81(1/1)

Cl-16C 0.81(1/1)

NA 0

0.6 miles ESE j

Pb-214 -

0.59(1/l)

Cl-16C 0.59(1/l)

NA 0

0.6 miles ESE Ra 226 1.34(1/l)

Cl-16C 1.34(1/l)

NA 0

0.6 miles ESE TI-208 0.26(1/1)

Cl-16C 0.26(1/l)

NA 0

0.6 miles ESE a

Hghest quarterly mean b

Values excluded due to insufficient sample volume collected (T) Treated well water sample or (U) Untreated well water sample c

B-17 1

TABLE B-3 fCont'd1 Medarn or Type of Iower Limit AllIndicator location with Control Number of Pathway Sampled Analysis d

locations:

liighest Annual Mean Locations:

Nonroutine (Unit of Total Number Detection Mean (f)

Name Mean(f)

Mean (f)

Reported Measurement)

Performed (LLD)

(Range)

Distanceand Direction (Range)

(Range)

Measurements Column I Column 2 Column 3

( o!umn 4 Column 5 Column 6 Column 7 T'.BLE EXPLANATIONS:

Column 1:

The Unit of Measurement describes all the numerical values for LLD, Mean and Range reported for a particular sample medium. For example: the Gross Beta LLD in AIR PARTICULATES is 0.010 pCl/m3 3

Abbreviations used are: pCi/m,

picocurie per cubic meter of sampled air; mR/ quarter = exposure measured for calendar quarter period; pCi/1 = picoeurie per liter of sample; pCi/g = picoeurie per gram of sample.

Column 2:

The Types of Analyses are det.cribed as follows. Gamma Spec = measurement of each radioisotope in a sample using Gamma Spectroscopy; Gross Betas and Gross Alphas = measurement of the radioactivity in a sample by measurement of emitted betas and alphas - no determination of individual radioisotopes is possible; Tritium = measurement of tritium (H-3) is sample by liquid scintillation counting method; TLD = direct measurement of gamma exposure using thermoluminescent dosimeters.

Column 3:

LLD reported is the highest of those reported for each of analysis during the year; tf all analyses reported positive values, no LLD is reported.

Column 4:

Samples taken at Indicator Locations during an operational radiological environmental monitonng program (REMP) reliably measure the quantities of any radioisotopes cycling through the pathways to man from the nuclear station. The

~

reported values are the mean or average for the year of all samples of that type which had values greater than the LLD.

"f' is the fraction of all the samples taken at all indicator locations for the medium which reported values greater than the LLD. Example: 7 results greater than LLD out of 15 samples taken would be reported 7/15. The Range is the values of the lowest to highest sample results greater than LLD reported at all the indictor locations for that medium.

Column 5:

The Mean, f-fraction and Range along with the name of the location, distance from the CPS gaseous efnuent stack in miles, and the letter (s) name of the compass sector in the diraction of the sample location from the CPS gaseous effluent stack. The location wth the highest annual mean is comparcJ to both indicator and control locations of the medium samples.

Column 6:

Control locations are sited in areas with low relative deposition and/or dispersion fadors Sample results are used as reference for the ce ntrollocation.

4 Column 7:

NRC Regulations (Branch Technical Position, Rev.1, November 1979) include a table of radioisotope concentrations that, if exceeded by confirmed sample measurements, indicate that a Nonroutine Reported Measurement exists. Such measurements require further investigation to validate the source.

s B-18 i

j

APPENDIX C Glossary C-1 I

i l

~.

GLOSSARY activation the process in which stable atoms become radioactive atoms by absorbing neutrons.

ALARA - acronym for' "As Low As Reasonably Achievable" which applies to many facets of nuclear power, i.e.,

radiation exposure for personnel kept low, minimizes number / activity of effluent discharges.

alpha particle - a charged particle emitted from the nucleus of an atom having a mass and charge equal in magnitude to a helium nucleus which has two protons and two neutrons.

atom the smallest component of an element having all the properties of that element.

Comprised of protons, neutrons and electrons such that the number of protons determines the element.

background radiation source of radiation that mankind has no control

over, such as cosmic (from the sun) and terrestrial (naturally occurring radioactive elements).

beta particle - a charged particle egoivalent to an electron if negative or a positron if positive, originating near the nucleus of an atom during radioactive decay or fission._

i control location - a sample collection location considered to be far enough away from Clinton Power Station so as not to be affected by station operations.

cosmic radiation - penetrating ionizing radiation originating in outer space.

curie (ci) - the unit of radioactivity equal to 2.2 trillion disintegrations per minute.

dead water - water that contains no tritium.

dose a

quantity (total or accumulated) of ionizing radiation received.

dose equivalent a quantity used in radiation protection which expresses all radiations on a

common scale for calculating the effective absorbed dose (the unit of dose equivalent is the rem).

ecology a branch of biology dealing with the relations between organisms and their environment.

C-2

l electromagnetic radiation - a traveling wave motion resulting i

from changing electric or magnetic fields.

Familiar sources of electromagnetic radiation range from x-rays (and gamma j

rays) of short wavelength, through the ultraviolet, visible and infrared regions, to radar and radiowaves of relatively long wavelength..

All electromagnetic radiation travels in a vacuum at the speed of light.

element - one of 103 knowl chemical substances that cannot be broken down further without changing its chemical properties.

environment the aggregate

.of surrounding

things, conditions, or influences.

i exposure - a measure of the ionization produced in air by x-ray or gamma radiation.

Acute exposure is generally accepted to be large exposure received over a short period of l

time.

Chronic exposure is exposure received over a long period of time.

fission - process by which an atomic nucleus splits into two smaller nuclei and releases neutrons and energy.

fission products the nuclei formed as part of the fissioning of an atomic nucleus.

~

high energy, short wavelength electromagnetic gamma rays radiation emitted from the nucleus.

half-life - the time required for half of a given amount of a radionuclide to decay, indicator location - a sample collection strategically placed to monitor dcse rate or radioactive material that may be the result of Clinton Power Station operations, ionization - the process by which a neutral atom or molecule acquires a positive or negative charge.

irradiation - exposure to radiation.

Lower Limit of Detection (LLD) the smallest amount of sample activity that will give a net count for which there is a confidence at a predetermined level that the activity is present.

microcurie one millionth of a curie and represents 2.2 million decays per minute.

neutron - one of the three basic parts of an atom which has I

no charge and is normally found in the nucleus (center) of an l

atom.

l l

C-3

-- q 1

l nucleus the center of an atom containing protons and neutrons;' determines the atomic weight and contributes to the net positive charge of an atom.

nuclei (plural) nuclides - atoms which all have the same atomic number and mass number.

periphyton - water plant life (i.e., algae).

radiation the process by which energy is emitted from a nucleus as particles (alpha, beta, neutron) or weves (gamma).

radionuclide - a radioactive species of an atom characterized by the constitution of its nucleus.

The nuclear constitution is specified by the number of protons, number of neutrons, and energy content.

the unit of dose of any ionizing radiation that rem produces the same biological effects as a unit of absorbed dose of ordinary x-rays.

Acronym for Roentgen Equivalent Man.

roentgen - a measure of ionization produced in air by x-ray j

or gamma radiation.

1 statistics the science that deals with the collection, classification, analysis and interpretation of numerical data by use of mathematical theories of probabilities.

target tissue any tissue or organ of the body in which radiation is absorbed.

terrestrial radiation - source of radiation pertaining to the ground (Earth's crust).

wind rose a graphic representation indicating from which direction and speed the wind blew.

high

energy, short wavelength electromagnetic x-rays radiation, emitted frota the electron shells of an atom.

i i

C-4

l l

t l

I l

1 APPENDIX D Teledyne 1995 EPA Intercomparison Results l

I l

l D-1

I.

I 1

TABLE D-1 l

'U.

S.

EPA CROSSCHECK PROGRAMa Concentration in pCill Lab Sample Date TBEESML EPA Result

• Code Type Collected Analysis Result e2a

• 10, N=1 Control Limits 6

STW-723 Water Jan 1995 Sr-89 17.711.5 20.015.0 11.3-28.7 l

Sr-90 13.710.6 15.015.0 6.3-23.7 l

SW-724 Water Jan 1995 Gr. Alpha 4.3t0.6 5.015.0 0.0-13.7 Gr. Beta 4.710.6 5.015.0 0.0-13.7 l

SW-725 Water Feb 1995 I-131 99.014.4 100.0110.0 82.7-117.3 SW-726 Water Feb 1995 Ra-226 19.210.4 19.112.9 14.1-24.1 j

Ra-228 19.212.0 20.015.0 11.3-28.7 r

Uranium 24.910.2 25.513.0 20.3-30.7 SW-727 Water Mar 1995 H-3 7460.0187.2 7435.01744.0 6144.2-8725.8 l

SW-728 Water Mar 1995 Pu-239 11.010.6 11.111.1 9.2-13.0 i

SW-729 Water Apr 1995 Gr. Alpha 41.'710.6 47.5111.9 26.9-68.1 Ra-226 13.410.5 14.912.2 11.1-18.7

- Ra-228 13.112.4 15.8f4.0 8.9-22.7 l

Uranium 9.510.6 10.013.0 4.8-15.2 l

SW-730 Water Apr 1995 Co-60 29.011.7 29.015.0 20.3-37.7 Cs-134 17.311.2 20.015.0 11.3-28.7 l

Cs-137 11.011.0 11.015.0 2.3-19.7 l

Gr. Beta 74.823.2 86.6110.0 69.3-103.9 Sr-89 17.010.0 20.015.0 11.3-28.7 Sr-90 12.711.2 15.015.0 6.3-23.7 SW-732 Water Jun 1995 Ra-226 14.7 f 0.3 14.812.2 11.0-18.6 Ra-228 11.910.6 15.013.8 8.4-21.6 Uranium 13.910.3 15.213.0 10.0-20.4 l

SW-735 Water Jul 1995 Gr. Alpha 16.412.4 27.516.9 15.5-39.5 Gr. Beta 16.811.0 19.415.0 10.7-28.1 SW-736 Water Aug 1995 H-3 4773.7149.9 4872.01487.0 4027.1-5716.9

(

• Results obtained by Teledyne's Midwest Laboratory as a participant in the environmental

)

sample crosscheck program operated by the Intercomparison and Calibration Section, Quality j

Assurance Branch, Environmental Monitoring and Sup;crt Laboratory, U.S.

Environmental Protection Agency (EPA), Las Vegas Nevada.

D-2 l

TABLE D-1 (Cont'dl Lab Sample Date TBEESML EPA Result

• Code Type Collected Analysis Result *2a*

• 10, N=1 Control Limits

• Unless otherwise indicated, the Teledyne. results are given as the mean 12 standard deviations for three determinations.

• U.S. EPA results are presented as the known values and expected laboratory precision (1s, 1 determination) and control limits are defined by the EPA.

l l

D-3

APPENDIX E CPS Radiological Environmental Monitoring Results During 1995 E-1

W-*4-JpLM.

.mae M M.4 4-A4s-...L&*A.eh 1-4 4

i if 4

e d

d i

e 2

4 3

4 4

l' e

e 4

(

J 4

d f

4

)

4 k

4 i

4 J

e 1i 4

.?

S

-I 1

4 I

4 r

4 3

a, 1'

2 t

i 5

h i

-A 9

1 3 -

1 i

i e

1

.a a

E-2

TABLE E-1

)

1 GROSS BETA AND IODINE-131 ACTIVITY

{

IN AIR PARTICULATES FOR 1995a 3

(pci/m 120)

DATE COLLECTED CL-1 CL-2 CL-3 CL-4 CL-6 1

01A)4 0.023 0.003 0.023 0.003 0.024 1 0.003 0.025 2 0.003 0 023 0.003 01/11 0.031 0.003 0.034 2 0.004 0.030 2 0.004 0.034 2 0.004 0.033 t 0.004 01/18 0.014 2 0.003 0.015 2 0.003 0.014 2 0.003 0.014 2 0.003 0 013 2 0.003 01/25 0.017 2 0.003 0.018 2 0.003 0.016 2 0.003 0.019 2 0.003 0.018 0.003 0201 0.023 t 0.003 0.023 0.003 0.030 t 0.004 0.029 t 0.004 0 029 2 0.004 02M8 0.025 2 0.003 0020 t 0.003 0.027 t 0.003 0.023 t 0.003 0.026 0.003 02/15 0.017 t 0.003 0.016 2 0.003 0.021 t 0.003 0.022 2 0.003 0 021 0.003 02n2 0.026 0.003 0.028 2 0.004 0.032 2 0.004 0.031 0.004 0031 i 0.004 0301 0.013 2 0.003 0.016 2 0.003 0.013 2 0.003 0.015 2 0.003 0.020 0.004 0308 0.017 0.003 0.019 0.003 0.020 0.003 0.017 0.003 0.019 0.003 i

03/15 0.024 t 0.003 0.021 2 0.003 0.028 e 0.003 0.029 2 0.003

'.029 t 0.004 03/22 0.019 0.003 0.020 t 0.003 0.021 2 0 003 0.019 2 0.003 0 021

• 0.003 03/29 0.008 2 0.003 0.008 2 0.003 0.010 0.003 0.008 t 0.003 0011 2 0.003 04/05 0.019 0.003 0.019 2 0.003 0.023 t 0 003 0.019 t 0.003 0.018 2 0.003 04/12 0.017 2 0.003 0.017 0.003 0.018 2 0.003 0.016 t 0.003 0 016 0.003 04/19 0.011 2 0.003 0.012 2 0.003 0.012 2 0.003 0.012 2 0.003 0011 1 0.003 04/26 0.011 1 0.003 0.010 0.003 0.013 2 0 003 0.009 i 0.003 0 011 0 003 0503 0.012 0.003 0009 t 0.003 0 012 2 0.003 0.011 2 0.003 0010 2 0.003 05/10 0.013 2 0 003 0.013 2 0.003 0.016 2 0 003 0 015 2 0.003 0 017 2 0.003 05/17 0.009 0.003 0.011 1 0.003 0.012 2 0 003 0.011 0.003 0 013 0.003 05/24 0.010 0.003 0 012 2 0.003 0012 20003 0.011 2 0.003 0.012 2 0.003 05/31 0.011 0.003 0.010 0.003 0.010 2 0.003 0.010 0 003 0 010 2 0.003 06/07 0.013 t 0.003 0.014 0.003 0.014 0.003 0.014 2 0.003 0 015 2 0.003 06/14 0.010 2 0.002 0.012 t 0.003 0 012 2 0.003 0 013 2 0.003 0011 2 0.003 06/21 0.023 2 0.003 0.022 2 0.003 0.027 0.003 0.024 2 0.003 0026 2 0.003 06/28 0.016 0.003 0.019 0.003 0 022 0.003 0.021 0.003 0 018 0.003 07/05 0.011 2 0.003 0.014 2 0.003 0015 20003 0.015 0.003 0.014 2 0.003 07/12 0.016 0.003 0 016 0.003 0.020 2 0 003 0.019 2 0.003 0023 2 0.003 07/19 0.026 0.004 0.028 0.004 0 031 0 004 0.023 0.003 0 029 i 0.004 07/26 0.016 2 0.003 0.018 0.003 0.022 i 0 003 0.018 i 0.003 0 020 0.003 08/02 0 019 0.003 0.019 0.003 0 025 0.003 0 018 i 0 003 0020 2 0.003 0809 0.011 t 0.003 0.013 0.003 0 014 20003 0 009 2 0.003 0 014 0.003 08/16 0.019 to.003 0.023 20.003 0 027 20.004 0.024 10.003 0 022 i 0.003 E-3

l l

TABLE E-1 fCont'd)

DATE COLLECTED CL-1 CL-2 CL-3 CL-4 CL-6 l

08G3 0.013 0.003 0.015 0.003 0 018 2 0.003 0.015 t0.003 0.016 t0.003 0800 0.037 t 0.004 0.043 1 0.004 0 044 2 0.004 0.044 0.004 0.043. t 0.004 0946 0.030 2 0.004 0.035 2 0.004 0.032 t 0.004 0.036 2 0.004 0.033 2 0.004 09/13 0.021 2 0.003 0.023 2 0.003 0.021 0.003 0.024 t 0.003 0.022 t0.003 09G0 0.016

• 0.003 0.022 t 0.003 0.020 2 0.003 0.021 0.003 0.022 0.003 09G7 0.019 2 0.003 PO 0.024 0.003 0.022 2 0.003 0.021 t 0.003 1044 0.034 0.004 0.039 t 0.004 0.038 2 0.004 0.038 2 0.004 0.041 t 0.004 10/11 0.022 2 0.003 0.025 2 0 003 0.028 t 0.003 0.023 2 0.003 0.021 0.003 10/13 0.026 t 0.003 0.026 0.003 0.028 2 0.004 0.030 0.004 0.030 t 0.004 10/25 0.014 2 0 003 0.016 t 0.003 0.016 0.003 0.013 0.003 to 1141 0.018 t 0.003 0.019 0.003 0.019 t0.003 0 020

• 0.003 0.018 t 0.003

.1128 0.018 t 0 003 0.026 2 0.004 0.018 0.003 0 021 0.003 f0 11/15 0.018 t 0.003 0.020 2 0.003 0.021 2 0.003 0 023 2 0.003 to 11/22 0.021 2 0.003 0.023 2 0.003 0 028 2 0.004 0.029 2 0.004 0.022 1 0.004 11/29 f0 0.025 2 0.003 0030 t 0.003 0.029

• 0 003 0.023

• 0.003 12/06 0.024 2 0.003 to

' O.026 2 0.003 0.026 1 0 003 0.020 2 0.003 l

12/13 0.026 t 0.003 0.021 2 0.003 0.030 2 0.004 0.024 2 0.003 0.019 1 0.003 12/20 0.037

• 0 003 0.038 2 0.004 0041 t 0.004 0.040 2 0.004 f0 12/27 0.017 1 0.003 0.019 2 0.003 0.019 2 0 CJ3 0.019 0.003 0.019 2 0.003 j

010386 0020 t 0.003 0.025 t 0.004 0.026 2 0.004 0.028 2 0.004 0.023 2 0.003 DATE COLLECTED CL-7 CL-8 CL-11b CL-15 CL-94 01/04 0.024 2 0.003 0.022 t 0.003 0.022 2 0.003 0.026 2 0 003 0.024 2 0.003 01/11 0.026 2 0.004 0 028 2 0.004 0.030 2 0.004 0.028 2 0.003 0.031 t 0.004 01/18 0.015 t 0.003 0.013 0.003 0.012 t 0.003 0.012 2 0.003 0 012 0.003 01/25 0.019 2 0.003 0 018 2 0.003 0.016 2 0.003 0.018 2 0.003 0.019 i 0.003 02/01 0f 23 2 0.003 0.026 i 0.003 0.026 2 0.003 0.027 2 0 004 0.027 2 0.004 02/08 0.024 0.003 0.026 2 0.003 0.020 2 0.003 0.024 2 0.003 0 022

• 0.003 02/15 0.018 2 0.003 0.018 2 0 003 0.020 2 0.003 0.018 2 0 003 to

~

02/22 0026 20003 0.028 2 0.004 0.028 2 0.004 0.026 2 0.003 ID i

03/01 0.012 2 0 003 0.015 2 0.003 0.016

• 0.003 0016 10003 0.016 2 0.003 0308 0.013 1 0.003 0.019 2 0.003 0.017 2 0.003 0 018 2 0,003 0.021 1 0.003 i

E-4

[

T i

TjgtLE E-1 (Cont'd)

DATE COLLECTED CL-7 CL-8 CL-ll CL-15 CL-94 b

03/15 0.021 t 0.003 0.026 0.003 0.024 2 0.003 0.026 t 0.003 0.025 t 0.003 03/22 0.016 2 0.003 0.023 0.003 0.024 0.003 0.020 t 0.003 0.024 2 0.003 l

03/29 0.008 0.003 0.009 t 0.003 0.008 2 0 003 0.007 t 0.003 0.008 t 0.003 0405 0.018 t 0.003 0.019 2 0.003 0.020 2 0.003 0.017 2 0.003 0.022 t 0.003 04/12 0.018 2 0.003 0.019 2 0.003 0.016 0.003 0.017

• 0.003 0.018 2 0.003 04/19 0.013 2 0.003 0.012 t 0.003 0.013 2 0.003 0.012 2 0.003 0.014 2 0.003 04/26 0.010 0.003 0.011 2 0.003 0.011 i 0.003 0.009 2 0.002 0.013 2 0.003 05/03 0.011 2 0.003 0.012 2 0.003 0.013 0.003 0.009 2 0.003 0.013 2 0.003 05/10 0.014 t 0.003 0.013

• 0.003 0.015 2 0.003 0.014 2 0 003 0 013 0.003 05/17 0 008 0.002 0.012 0.003 0 011 0.003 0.010 2 0 003 0.011 2 0.003 05/24 0.010 0.003 0.011 2 0.003 0 011

• 0.003 0.013 2 0.003 0.000 t 0.002 05/31 0.007 2 0.002 0.009

• 0.003 0.011 2 0.003 0.011 2 0.003 0.012 i 0.003 0607 0 010 0.003 0.016 0.003 0.014 0.003 0.015 t 0.003 0.013 0.003 06/14 0.010 0.002 0.010 0.002 0.012 2 0.003 0.009 0 002 0.013 1 0.003 06/21 0.017 2 0.003 0.074 t 0.003 0 025 2 0.003 0.021 2 0 003 0028 20003 06/28 -

0.013 0.003 0 018

• 0 003 0.021 0 003 0.019 t 0.003 0.024 t 0.003 07/05 0 012 0.003 0.012 0.003 0.015

• 0.003 0.013 2 0.003 0 014 2 0.003 07/12 0.015 0 003 0.020 t 0.003 0.017 0.003 0.018 2 0.003 0.018 e 0.003 07/19 0.026 2 0.003 0.029 i 0.004 0 027 2 0.003 0.030 2 0 004 t0 07/26 0.017 2 0.003 0.017 2 0 003 0.019 0 003 0.021 t 0.003 0020 t 0003 08/02 0.017 2 0.003 0 021 2 0.003 0 022

• 0.003 0.022 2 0 003 0023 t 0.003 08/09 0.010 0.003 0 012 0.003 0.014 2 0.003 0.011 t 0.003 0 013 0.003 08/16 0.023 0.003 0.020 t 0.003 0.023 t 0.003 0.026 2 0.003 0.026 0.003 08/23 0.017 2 0.003 0.010 2 C.003 0.019 2 0.003 0.016 2 0.003 0.011 2 0.003 08/30 0 042

• 0 004 0039 t 0.004 0.041 t 0.004 0.044 2 0 004 0.044 2 0.004 09/06 0.029 2 0.004 0 032 2 0.004 0.021

• 0.003 0.033 2 0.004 0.034 t 0.004 09/13 0.024 2 0 003 0026 20003 0.020 2 0 003 to 0.024 0.003 09/20 0.019 2 0.003 0.022 0 003 0.018 0003 0.020 2 0.003 0 018 2 0.003 09/27 0.022 0 003 0.023 2 0.003 0.027 2 0 003 0.023 1 0 003 0 021 1 0.003 10/04 J.0312 0 004 0043 20004 0 040 2 0.004 0.036 2 0 004 0.039 20.004 10/11 0 022 2 0.003 0032 20004 0.025 i 0 003 0.021 2 0 003 0 029 2 0.004 10/18 0.027 2 0.003 0.026 2 0 003 0 028 t 0.004 0.027 2 0.003 0.027 t 0.003 10/25 0015 t 0.003 0 014 2 0.003 0014 20003 0.014 t 0.003 0.016 2 0.003 11/01 0 016

• 0 003 0.018 2 0 003 0017 20001 0019 20003 0 019 2 0.003 1

E-5

._._.._.________m.

___.__...m.

i s

TABLE E-1 (Cont'd)

I DATE COLLECTED CL-7 CL-8 CL-11" CL-15 CL-94

[

i L

t 11/08 0.019 2 0.003 0.021

• 0.003 0.023 2 0.003 0.019 2 0.003 0.020 2 0 003 11/15 0.019 2 0.003 0.020 2 0.003 0.023 2 0.003 0.018 t0.003 0.020 2 0 003 11/22 0.023 2 0.004 0.030 2 0 004 0.029 t 0.004 0.025 2 0.003 0.026 2 0.004 f

11/29 0.029 2 0.003 0.028 2 0.003 0.038 0.004 0032 t 0.003 0.029 2 0.003 12/06 0.028 2 0.003 0.028 1 0.003 0.026

• 0.003 0.026

• 0.003 0.026 2 0 003 12/13 0.023 2 0.003 0.025 0.003 0.027 2 0.003 0.025 2 0.003 0.025 2 0 003 12/20 0.038 2 0.004 0.039 2 0.004 0.042 2 0.004 0.033 2 0.004 0.034 t 0.004 j

12/27 0.019 i 0.003 0 020 0.003 0.018 0 003 0.018 t 0.003 0.019 2 0 003 01/03/96 0.022 2 0.003 0.022 2 0.003 0.024 2 0.004 0.025 2 0.003 0.025 0 003 all I-131 activity was <0.07 pci/m' I

a l

b control location, all other locations are indicators ND No data i

l l

I t

e i

I

\\

E4

TABLE E-2 GAMMA ISOTOPIC ACTIVITY IN AIR PARTICULATES FOR 1995 (pCi/m' *2 o)

SITE ISGTOPE 1" QTR fQTR 3"QTR 4* QTR CL-1 Bc 'I 0.074*0.010 0.097t 0.012 0.0901 0.011 0.048* 0.011 i

K-46

<0.020

<0.020

<0.017

<0.024 L

Co-60

<0.0008

<0.0004

<0.0006

<0.0003

{

Nb-95

<0.0005

<0.0005

<0.0011

<0.0007 Zr 95

<0.0009

<0.0014

<0.0011

<0.0005 Ru-103

<0.0005

<0.0008

<0.0008

<0.0005 Ru-106

<0.0021

<0.0018

<0.0054

.<0.0054 Cs-134

<0.0003

<0.0002

<0.0004

<0.0004 Cs-137

<0.0005

<0.0008

<0.0004

<0.0002 Cc-141

<0.0009

<0.0011

<0.0015

<0.0019 Cc-144

<0.0036

<0.0037

<0.0036

<0.0042 CL-2 Be-7 0.081* 0.010 0.097* 0.013 0.10l* 0.016 0.061* 0.013 K-40

<0.020

<0.020

<0.024

<0.024 Co-60

<0.0007

<0.0005

<0.0006

<0.0005 I

Nb-95

<0.0008

<0.0006

<0.0010

<0.0007 Zr-95

<0.0007

<0.0005

<0.0009

<0.0006 Ru-103

<0.0008

<0 0008

<0.0012

<0.00( 7 J

Ru-106

<0.0038

<0.0037

<0.0046

<0.0028 Cs-134

<0.0005

<0.0003

<0.0012

_ 0.0004 Cs 137

<0.0004

<0 0003

<0.0008

<0.0005 Cc I41

<0.0008

<0 0007

<0.0030,

<0.0013 Ce-144

<0.0021

<0 0041

<0,0019

<0.0046 CL-3 Be-7 0.0861 0.012 0.1061 0.011 0.1081 0.015 0.068t 0.012 K-40

<0.020

<0.019

<0.024

<0.024 Co-60

<0.0U18

<0.0003

<0.0003

<0.0003 Nb-95

<0.0004

<0.0008

<0.0008

<0.0006 Zr-95

<0.0008

<0.0022

<0.0007

<0.0004 Ru-103

<0.0005

<0.0007

<0.0011

<0.0009 Ru-106

<0.0022

<0.0054

<0.0062

<0.0105 Cs-134

<0.0007

<0.0009

<0.0004

<0.0002 Cs-137

<0.0005

<0.0004

<0.0005

<0.0005 i

Ce-141

<0.0010

<0.0012

<0.0009

<0.0017 Ce-144

<0.0030

<0.0018

<0.0038

<0.0035 E-7 J

_.m TABLE E-2 (Cont'd)

SITE ISOTOPE 1"QTR 2* QTR 3"QTR 4* QTR CIA Be-7 0.089i 0.010 0.1041 0.013 0.1361 0.017 0.0661 0.013 K-40

<0.020

<0.020

<0.024

<0.025 Co-60

<0.000

<0.0003

<0.0006

<0.0006 Nb-95

<0.0007

<0.0006

<0.0009

<0.0006 Zr-95

<0.0002

<0.0007

<0.0007

<0.0011 Ru-103

<0.0008

<0.0007

<0.0018

<0.0004 Ru-106

<0.0034

<0.0055

<0.0058

<0.0025 Cs-134

<0.0006

<0.0004

<0.0004

<0.0006 Cs-137

<0.0003

<0.0006

<0.0006

<0.0003 Ce-141

<0.0013

<0.0014

<0.0015

<0.0013 Cc-144

<0.0033

<0.0039

<0.0025

<0.0033 Cle6 Be-7 0.0861 0.010 0.1111 0.016 0.1231 0.019 0.070i 0.014 K-40

<0.021

<0.020

<0.024

<0.028 Co-60

<0.0009

<0.0005

<0.0004

<0.0003 Nb-95

<0.0008

<0.0007

<0.0004

<0.0003 Zr-95

<0.0008

<0.0015

<0.0007

<0.0007 Ru-103

<0.0007

<0.0008

<0.0007

<0.0009 i

Ru-106

<0.0037

<0.0054

<0.0066

<0.0020 Cs-134

<0.0007

<0.0006

<0.0002

<0.0007 Cs-137

<0.0006

<0.0006

<0.0005

<0.0004 Ce-141

<0.0012

<0.0016

<0.0019

<0.0018 Ce-144

<0.0017

<0.0038

<0.0042

<0.0040 CL-7 Be-7 0.0641 0.010 0.077 0.010 0.1011 0.014 0.0591 0.011 K-40

' 0.020

<0.020

<0.023

<0.024 Co-60

<0.0008

<0.0004

<0.0004

<0.0003 Nb-95

<0.0004

<0.0004

<0.0010

<0.0012 Zr-95.

<0.0010

<0.0015

<0.0008

<0.0009 Ru-103

<0.0010

<0.0008

<0.0007

<0.0009 Ru-106

<0.0035

<0.0028

<0.0065

<0.0058 Cs-134

<0.0004

<0.0006

<0.0008

<0.0002 Cs-137

<0.0003

<0.0003

<0.0007

<0.0006 Ce-141

<0.00%

<0.0015

<0.0013

<0.0018 Ce-144

<0.0037

<0.0032

<0.0049

<0.0030 CL-8 Be-7 0.080i 0.011 0.0921 0.011 0.1141 0.014 0.067i 0.012 K-40

<0.019

<0.020

<0.024

<0.025 Co-60

<0.0008

.<0.0005

<0.0006

<0.0004 Nb-95

<0.0006

<0.0007

<0.0005

<0.0010 Zr-95

<0.0008

<0.0012

<0.0013

<0.0006 Ru-103

<0.0004

<0.0008

<0.0012

<0.0008 Ru-106

<0.0041

<0.0062

<0.0048

<0.0036 Cs-134

<0.0006

<0.0(Kr7

<0.0003

<0.0003 Cs-137

<0.0003

<0.0006

<0.0004

<0.0004 Cc-141

<0.0013

<0.0007

<0.0031

<0.0016 Cc-144

<0.0015

<0.0020

<0.0042

<0.0033 E-8

L 1

l TABLE E-2 (Cont'd)

SITE ISOTOPE 1" QTR 2* QTR 3""QTR 4" QTR CL-11 Be-7 0.0761 0.010 0.089i 0.011 0.0871 0.013 0.063i 0.011 i

K-40

<0.020

<0.020

<0.020

<0.024 Co-60

<0.0008

<0.0003

<0.0005

<0.0005 l

Nb-95

<0.0005

<0.0006

<0.0010

<0.0003 Zr-95

<0.0014

<0.0009

<0.0014

<0.0005 Ru-103

<0.0007

<0.0009

<0.0007

<0.0004 Ru-1%

<0.0050

<0.0056

<0.0028

<0.0059 i

Cs-134

<0.0004

<0.0006

<0.0007

<0.0007 I

Cs-137

<0.0002

<0.0006

<0.0005

<0.0003 Ce-141

<0.0012

<0.0014

<0.0012

<0.0016 Ce-144

<0.0032

<0.0065

<0.0039

<0.0049 j

CL-15 Be-7 0.0691 0.009 0.095 0.011 0.0841 0.013 0.%1i0.010 l

K-40

<0.020

<0.020

<0.027

<0.024 l

Co-60

<0.0009

<0.0003

<0.0006

<0.0003 l

Nb-95

<0.0006

<0.0004

<0.0006

<0.0006

(

Zr-95

<0.0008

<0.0011

<0.0013

<0.0005 l

Ru-103

<0.0007

<0.0010

<0.0008

<0.0007 Ru-106

<0.0034

<0.0039

<0.0084

<0.0030 Cs-134

<0.0004

<0.0006

<0.0004

<0.0006 Cs-137

<0.0004

<0.0003

<0.0008

<0.0004 i

Ce-141

<0.0010

<0.0012

- <0.0016

<0.0007 Ce-144

<0.0016

<0.0040

<0.0040

<0.0038 CL-94 Be-7 0.M710.011 0.102 0.012 0.089-i 0.015 0.0591 0.012 K-40

<0.023

<0.020

<0.022

<0.024 Co-60

<0.0012

<0.0005

<0.0005

<0.0007 Nb-95

<0.0007

<0.0011

<0.0005

<0.0005 Zr-95

<0.0012

<0.0015

<0.0008

<0.0008 Ru-103

<0.0006

<0.0004

<0.0009

<0.0008 l

Ru-106

<0.0060

<0.0036

<0.0054

<0.0073 Cs-134

<0.00%

<0.0007

<0.0005

<0.0005 Cs-137

<0.0005

<0.0005

<0.0005

<0.0008 Ce-141

<0.0015

<0.0008

<0.0014

<0.0007 Ce-144

<0.0033

<0.0024

<0.0021

<0.0043 i

?

E-9 t

l TABLE E-3 '

1995 CPS REMP OUARTERLY TLD RESULTS (mR/ quarter Net Exposure) location 1" OTR 2'" OTR 3") OTR 4'" U I K CL-1 153103 17310.2 16.11 0.2 20.610.2 Cb2 16.9103 17310.2 16.li 0.2 20.6103 Cb3 16210.2 16310.2 16.7i 0.2 20.110.2 CL-4 16.7i 0.6 15.6103 16.7i 03 18.110.3 Cb5 18.01 0.5 17.0i 0.2 17.81 0.2 20.210.2 Cb6 143103 14.li 0.2 14.0i 0.2 15310.2 CL-7 16.5i 0.4 14.81 0.2 15.7i 0.2 17.2103 Cb8 14.7i 0.2 15.0i 03 16 3i 0.2 17.010.2 CL-11 14.2i 0.2 14.9i 0.2 15.4i 0.2 17.010.2 CL-15 12.7i 0.4 14.11 0.2 14.7i 0.2 16.210.2 CL-20 18.91 0.2 18.71 0.2 18.81 0.2 21.410.2 CL-21 19.01 0.2 17.11 0.2' 18.91 0.2 20.110.2 C U22 18.61 0.2 15.4i 0.4 16.7i 0.2 18.110.4 Cb23 14.7i 0 3 12.81 0.2 13.1103 15.710.2 CL-24 17.01 0.6 15.7i 0.2 16.91 0.4 18.610.4 CL-25 11.8i 0.4 13.0i 03 13.11 0.2 15310.2 CL-26 14.81 0.2 13.6i 0.2 14.8i 0.2 15.6i0.2 CL-27 153103 15.5i 03 15.21 0.2 18.210 3 Cb28 16.51 0.3 163i 0.2 17.21 0.4 20.li0.2 CL-29 17.4103 17.Si 0.2 18.9 0.2 20.Si0.2 CL-30 17.01 0.4 17.010.2 18.41 0.2 20.010.2 Cb31 14.2i 0.2 14.51 0.2 14.01 0.2 17310.2 C b32 15.6103 15.5103 15.81 0.2 17.9 0.2 CL-33 18.2i 0.6 17.51 0.2 18.61 0.2 20.7i0.2 C b34 15.61 0.2 18310.2 18.4i 0.2 22.110.2 C b35 17.11 0.4 15.0i 03 16.5103 18.0i0.2 Cb36 16.7i 03 15.71 0.4 18.51 0.2 18.710.4 C b37 173i 0.4 15.8i 0.4 18310.2 19.710.2 CL-38 16.91 0.5 17.11 0.2 19.6103 19.610.2 Cb39 16.51 0.3 14.6103 16.81 0.2 18.410.2 CL40 16310.4 16.Si 0.6 17.61 0.2 18310.2 CL-41 18.41 0.7 16310.2 18.81 0.2 20.0 0.2 CL-42 17.li 0.4 14.91 0.2 18310.2 18.0103 CL-43 17.7i 0.2 17.1i 0.2 19.11 0.2 20.410.2 CL-44 18.91 0.2 17.21 0.2 18.81 0.2 20.010.2 CL-45 17.51 0.2 18.61 0.2 20.4103 21.7 0.2 CL-46 15.81 0.2 17.11 0.2 17.0 0.4 18.7 0.4 CL-47 17.91 0.5 17.51 0.2 17.91 0.2 20.9 0.2 CL-48 17.11 0.4 17.9i 0.2 18.41 0.2 21.710.2 CL-49 18.8103 17.81 0.2 20.0 0.4 22.6 0.2 CL-50 18.61 0.2 17.7103 19310.2 25.010 3 CL-51 16.9103 17.71 0.2 18.11 0.2 22.510 3 CL-52 17.6i 0.2 16.81 0.2 18310.2 20.4103 CL-53 16.li 03 15.41 0.2 17.91 0.2 20.5103 E-10

TABLE E-3 (Cont'd) location 15 OTR 2* OTR 3* OTR 4 OTR CL-54 16.7 03 15.71 0.2 16.910.2 19.610.2 CL-55 17.11 0.4 17310.2 185103 20.910.2 CL-56 18.91 0.2 17.51 0.2 18.7i0.2 22.410.3 Cb57 19310.2 15.81 0.3 19510.2 20.010.2 Cb58 19310.2 17.7i 0.2 19.4i0.2 20.7io.2 CL-59 18.91 0.2 18310.2 18310.2 22.510.4 CL40 18.8i 0.2 17.91 0.3 19.8 0.2 22.6103 C b61 19.1t 0.2 17.51 0.2 19.4103 22.5103 Cb62 17.9i 0.4 17.91 0.2 18.6i0.2 22.liO3 CL-63 19.7i 0.2 18.11 0.2 20.110.5 24.010.2 CL-64 17.5i 0.2 17.91 0.2 19.0i0.2 23.410.6 CL-65 19.0i 03 18.5i 0.2 20.5i0.2 22.610.2 C b66 14.7103 14.7i O3 15.210 3 18.2i0.2 CL-67 17.li 0.4 16.51 0.2 18.4 0.2 20.210.2 CL-68 15.6i 03 15.9i 0 3 16.810.2 20.110.2 CL-69 15.5i 0.4 15.6i 0.4 16.110.2 18.210.3 CL-70 16.6i 03 15.71 0.2 17.7i0.2 193i0.2 CL-71 153103 15.91 0.2 15.9103 20.110.2 CL-72 17.01 0.5 17.11 0.2 19.010.2 21.1103 CL-73 193103 17.51 0.3 21310.2 22.510.4 CL-74 17.21 0.3 17.91 0.2 18.210.2 213103 CL-75 18310.2 1.7.91 0.2 19.6i0.2 21.5i0 3 CL-76 18.81 0.2 19.41 0.2 19.610.2 22.0103 CL-77 163103 17.81 0.2 17.9 0.2 21.1103 CL-78 16210.4 18.9i 0.2 17.810.2 233 0.6 CL-79 17.2i 03 183103 19.910.5 21.4i0.2 CL-80 18.41 0.2 16.41 0.2 20.410.2 20.0iO3 CL-81 17310.4 18.91 0.2 18.8103 22.7103 CL-82 16.81 0.4 15.7i 0.2 18.910.2 19.8iO3 CL-83 19.5103 19.0103 21.4fD.2 22.7io.2 CL-84 16.8t 0.5 15.9103 18.210.2 19.411.8 CL-85 17.11 0.3 17.61 0.2 19.7i0.4 20.0i0.2 CL-86 17.21 0.5 15.6103 18310.2 17.6i03 CL-87 16310.2 175103 18.6i0.2 22.010.2 CL-95 17.410.4 18.0103 20.110.4 18.010.4 CL-%

16.0i 0.4 15.7103 16.7i0.2 22.4103 CL-97 19.01 0.2 17.9103 18.510.2 20.0i0.2 CL-109 15.li 0.2 15.5103 16.110.2 17.8103 CL-110 163103 17.7i 0.2 17.610.6 21.810.2 C b111 18.8i 0.3 18.9103 18.910.2 24.010.2 CL-112 16.7i 03 15.7103 16.710.2 19.8103 CL-113 17.11 0.4 16310.2 17.810.2 20.410.2 E-11

,... _.. - ~. -. -...

~ -.- ~

-. ~...

I-i TABLE E-4 SURFACEWATERBETA ANDGAMMAISOTOPIC ACTIVITY (pCi/l) - CL-9 Date Collected 01-25-95 02-22 03-29-95 04-26-95 05-31-95 06-28-95 Gross Beta 2310.6 1.9i 0.6 1.7i 0.4 1.8i 0.6 2.9i 0.6 2.51 0.4 Be-7

< 14.6

< 103

<9.8

< 17.2

< 15.7

< 203 e

K-40

< 33.4

< 33.1

< 23.9

< 333

< 29.2

< 31.9 Mn-54

< 0.7

<1.6

<1.2

<2.0

<13

<1.5

. Fe-59

<2.8

<3.2

<2.1

< 2.1

<2.0

<2.7 Co-58

< 0.8

<1.1

< 0.6

<1.8

< 2.0

< 2.1 Co40

<1.5

<2.1

<1.6

<2.0

<1.8

<1.7

-Zn-65

<2.4

<1.8

<1.4

< 2.5

< 2.5

<3.5 Nb-95

< 1.9

<2.1

< 0.9

<2.1

< 1.9

<2.4 '

Zr-95

<1.7

<5.3

<23

<2.5

<4.0

<2.4 Cs-134

<1.7

<1.2

<1.7

<1.0

< 2.0

<2.1 Cs-137

< 2.0

< 1.8

<1.8

<2.6

< 2.2

<1.2 I

Ba-14&

< 6.6

<63

<2.9

<4.2

< 5.6

< 7.0 La-14&

< 0.9

<1.6

<1.0

<1.6

<1.7

<1.1 Ce-144

< 27.5

< 9.7

< 233

< 19.2

< 27.0

< 21.8 Date Collected 07-26-95 08-30-95 09-27-95 10-25-95 11-29-95 12-27-95 Gross Beta 1.61 0.6 2.4i 0.6 3.01 0.6 1.61 0.6 3.01 0.6 3.2i 0.9

.[

Be-7

< 10.1

< 20.1

< 17.8

< 23.6

< 14.8

< 23.6 K-40

< 27.0

< 34.4

< 272

< 37.1

< 24.4

< 383 Mn-54

<1.7

<1.7

<1.9

<1.1

< 0.8

< 2.6 Fe-59

<4.2

<4.1

<3.4

<5.9

< 1.7

<4.5 Co-58

< 1.0

< 2.0

< 1.8

<2.6

<1.5

<1.8 Co-60

<2.0

<1.7

<2.2

<1.4

< 1.1

<3.0 Zn-65

<3.0

<3.4

<3.2

<1.9

<3.9

<5.4 Nb-95

< 2.6

< 2.6

<2.0

<3.1

<1.2

< 2.8 Zr-95

<4.2

<4.1

<2.6

< 6.1

<3.7

< 5.6 Cs-134

< 1.9

<1.1

< 2.2

< 2.4

<1.5

<2.6 Cs-137

<1.8

<1.8

<1.8

<1.1

< 1.6

<2.8 Ba-147

<73

< 6.8

<33

< 7.2

< 5.0

< 9.9 La-147

<1.4

<2.2

<1.5

< 0.9

<1.2

<4.1 Ce-144

< 29.2

< 303

< 26.0

< 32.7

< 23.7

< 17.4

^

LLD at time of counting.

i 4

I k

E-12

l

\\

1 i

i l

TABLE E-5 l

l SIRFACE WATER BETA AND GAMMA ISOTOPIC ACTIVITY-(pCi/l) - CL-10 ( control) l Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-31-95 06-28-95 j

Gross Beta 1.81 0.6 1.7i 0.6 1.51 0.5 1.0i 0.6 2.8i 0.6 2.7i 0.6 Be-7

< 13.6

< 21.7

< 12.9

< 15.6

< 21.3

< 22.3 K-40

< 46.6

< 38.9

< 27.6

< 27.9

< 33.7

< 39.0 Mn-54

<2.0

<2.5

<1.1

<1.9

<1.3

<2.7 Fe-59

<4.8

< 5.2

<3.0

<4.3

<2.0

<3.7 Co-58

<2.1

<2.8

<1.3

<1.1

<1.9

<1.4 Co-60

<1.2

<2.4

< 1.4

< 0.9

< 2.6

< 1.8 Zn45

<2.3

<4.9

<2.5

<4.0

<3.4

<2.4 l

Nb-95

<2.6

<3.0

<1.4

<2.2

<2.1

< 2.6 Zr-95

<4.8

<5.6

<1.4

<3.8

< 5.4

<5.3 Cs-134

<1.3

<3.0

< 1.0 -

<1.9

< 1.3

<3.1 Cs-137

< 2.1

<2.4

<1.2

< 1.9

<1.4

<3.0 Ba-14(f

<4.1

< 9.9

< 5.0

< 6.3

< 8.2

<9.3 La-14(f

<2.0

<1.0

< 0.9

< 2.0

< 0.9

<3.2 Ce-144

< 33.2

< 24.8

< 18.6

< 28.8

< 19.5

< 16.4 i

l Date Collected 07-26 95 08-30-95 09-27-95 10-25-95 11-29-95 12-27-95

~

Gross Beta 2.41 0.6 2.51 0.6 2.71 0.6 3.11 0.6 2.51 0.6 1.91 0.6 l

Be-7

< 14.1

< 27.7

< 24.6

< 23.5

< 12.8

< 19.6 K-40

< 40.7

< 41.5

< 37.0

< 28.7

< 20.2

< 32.8 Mn-54

<2.4

< 2.7

< 2.0

<2.2

< 0.6

<1.8 Fe-59

<6.4

<3.3

< 4.4

< 2.6

<3.0

<5.1 Co-58

<2.4

< 2.2

< 2.2

<1.2

<1.3

<2.0 l

Co-60

<2.7

< 2.7

< 2.4

<1.8

< 1.3

<1.9 Zn-65

<2.3

<2.5

< 2.4

<3.5

< 4.6

< 4.0 Nb-95

<3.2

<2.0

< 2.9

<3.2

< 2.1

<2.8 Zr-95

<4.2

<4.9

< 2.5

<4.5

<1.5

<3.0 Cs-134

<2.0

<2.7

< 2.1

<1.9

<1.4

<2.1 Cs-137

<2.5

< 2.3

< 2.1

<1.7

<1.4

<2.2 l

Ba-140'

< 8.0

< 8.7

<6.3

<3.7

<3.3

< 6.4 i

La-14(f

< 2.9

<2.5

<1.9

<1.8

<1.7

<3.5 Ce-144

<18.5

< 25.0

< 30.2

< 28.9

< 18.5

< 32.4 l

^LLD at time of counting.

I 1

l i

E-13

~..

i f

l TABLE E-6 SURFACE WATER BETA AND GAMMA ISOTOPIC ACTIVITY (pCi/l) - CL-13 Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-31-95 06-28-95 i

Gross Beta 1310.6' 2.21 0.6 1.8i 0.6 1.41 0.6 2.01 0.6 3.01 0.6 l

Be-7

< 12.7

<11.8

< 28.2

< 203

< 13.5

< 20.1 K-40

< 33.5

< 42.9

< 28.9

< 312

< 42.6

< 32.7 Mn-54

< 1.0

<2.8

<2.7

<2.1

<2.4

<23 Fe-59

< 1.8

<4.0

<4.6

<5,1

< 6.0

< 23 Co-58

<1.2

<13

<1.4

<1.0

<2.6

< 2.0 Co-60

< 1.9

<1.8

<2.6

<1.1

<2.5

<1.7 Zn-65

<5.1

<2.2

<5.3

<3.0

<6.4

<3.2 Nb-95

<1.8

<2.8

< 1.8

<2.1

< 2.9

<23 Zr-95

<3.8

<5.0

<3.6

< 5.2

<3.3

<2.4 Cs-134

<1.8

<3.3

<23

<1.5

<3.1

<2.2 Cs-137

<1.5

<1.5

<2.9

<1.7

< 2.0

<2.4 Ba-14(f

<5.8

< 10.0

< 7.1

<6.0

< 4.5

<7.2 La-14(f

<13

<2.5

< 1.8

<1.8

< 2.5

< 2.1 Cc-144

< 27.7

< 39.4

< 25.8

< 13.2

< 24.9

< 203 Date Collected -

07-26 95 08-30-95 09-27 95 10-25-95 11-29-95 12-27 95 Gross Beta 2~1 1 0.6 2.2i 0.6 3.01 0.6 2310.6 2310.4 3.2113 I

Be-7

< 20.8

< 21.8

< 25.8

< 21.4

< 7.7

< 28.7 K-40

< 32.0

< 31.6

< 35.9

< 31.6

< 19.4

< 40.9 Mn-54

<1.5

< 2.1

<2.2

<2.0

<1.0

<2.5 i

Fe-59

<3.8

<2.4

<2.7

<4.9

<1.5

< 73 Co-58

<1.8

<23

<3.0

<2.1

< 0.9

<1.7 Co-60

<2.4

<2.1

<2.9

<1.8

< 1.0

<3.0 Zn-65

<2.0

<3.0

<2.3

<3.9

< 2.4

<4.7 1

Nb-95

< 2.7

<1.5

<3.6

<1.5

<1.7

<2.8 Zr-95

<3.8

<2.7

<5.5

<3.6

< 3.2

<43 Cs-134

<13

<2.6

<2.6

<23

<1.3

<2.8 Cs.137

<2.9

<2.2

<3.0

<1.1

< 1.4

<3.1 Ba 140"

<3.9

< 7.9 '

< 10.1

< 7.5

<3.8

<8.7 La-14tf

< 0.9

<1.6

<2.1

<2.2

<1.6

<63 Ce-144

< 19.1

< 22.1

< 22.4

< 22.6

< 17.0

< 43.4 8LLD at time of counting, i

E-14 i

__m__

l t

t TABLE E-7 SURFACE WATER GROSS BETA, GROSS ALPHA.1-131 AND GAMMA ISOTOPIC ACTIVITY (pCi/D-CL-90 Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-31-95

% 95 Gross Alpha -

< 0.7

<1.5

<2.1

< 0.7

_ < 0.9

< 0.6 i

Gross Beta 1.21 0.6 3.8i 1.1 3.6i1.5 1.71 0.5-1310.7 2.110.5 Iodine-131

< 0.4

<0.4

< 0.5

< 0.4

< 0.2

<0.3 Be-7

<63

< 16.0

<163

< 29.0

< 25.1

< 17.5 K-40

< 24.7

< 29.0

< 33.1

< 37.4

< 33.5

< 32.9

{

Mn-54

<1.0

<1.2

<2.2

<2.4

<1.6

<1.8 Fe-59

<23

<3.6

<3.7

< 4.7

<4.0

<3.7 3

Co-58

< 0.8

<1.7

<1.7

< 2.5

<1.2

< 0.9 Co-60

<1.4

< 2.0

<1.4

<1.8

< 2.8

<1.8 l

Zn-65

<2.3

<33

<2.6

< 2.5

<2.7

<1.9 r

Nb-95

<13

< 1.9

< 2.3

< 2.4

<23

<2.2 Zr-95

<2.2

<3.6

<5.4

< 5.9

<5.3

<4.0-Cs-134

<1.3

<2.1

<1.8

<3.4

<2.5

< 1.9 Cs-137

<1.5

< 2.6

<1.2

< 2.6

<3.0

<1.4 Ba-140'

< 23

<6.8

< 8.1

< 11.4

< 5.5

< 4.6 t

La-140'

< 0.6

< 2.0

<1.6

<3.3

<1.7

< 1.7 Cc-144

< 22.4

< 12.1

< 19.7

< 25.4

< 24.3

< 18.7 Date Colhded 07-26-95 08-30-95 09-27 95 10-25-95 11-29-95 12-27-95 Gross Alpha

< 1.1

<0.9

<2.0 1.6i 0.9 2.7i1.2

<3.0 Gross Beta 2.Si13 2311.2'

<3.4 4.5i13 5.21 1.4

<3.5 lodine-131

<03

<03

<0.5

< 0.4

< 0.4

< 0.4 Be-7

< 23.4

< 26.1

< 24.2

< 14.0

< 17.6

< 16.8 i

K-40

< 38.4

< 42.8

< 40.2

< 42.7

< 36.1

< 303 j

Mn-54

< 2.6

<2.1

<2.8

< 1.7

<1.5

<1.9 Fe-59

< 5.5

< 4.6

<4.3

<4.7

<3.5

<1.6 Co-58

<2.4

< 2.5

<23

< 2.4

<1.0

<1.8 Co-60

<2.3

<3.1

<3.0

<23

<2.2

<2.2 Zn-65

< 5.0

< 2.6

<2.7

<5.5

<2.1

<2.1 Nb-95

< 1.8

<3.4

<1.8

< 2.5

<2.2

< 1.9 l

Zr-95

< 5.6

< 5.7

<3.3

< 6.2

<4.5

<3.8 Cs-134

<2.2

<2.2

<2.2

<3.4

<1.2

<13 Cs-137

< 2.4

<2.0

< 1.5

< 2.0

<2.1

< 1.8 Ba-140'

< 9.6

<6.2

< 7.7

<5.1

<5.1

< 8.1 La-140'

< 1.1

<13

<1.2

<3.2

<1.7

< 1.1 j

Ce-144

< 15.2

< 18.0

< 23.8

< 20.

< 30.4

< 28.5 dLLD at time of counting.

E-15

TABLE E-8 SURFACE WATER GROSS BETA, GROSS ALPHA,1-131 AND GAMMA ISOTOPIC ACTIVITY (pCi/l)- CL-91 Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-31-95 06-28-95 Gross Alpha 0.91 0.5

< 0.9

<23

<1.0

<1.9

<0.7 i

Gross Beta 2.01 0.6 2.51 0.6 2.01 1.4 2.51 0.7 4.01 2.0 1.91 0.6 Be-7

< 6.8

< 19.0

< 18.4

< 13.8

< 24.8

< 18.9 K-40

< 24.0

< 35.2

< 46.6

< 21.0

< 34.6

< 405 Mn-54

<1.6

< 1.7

<23

<1.0

<2.4

<2.4 Fe-59

<3.2

<3.7

<2.8

<3.0

<4.8

<5.5 Co-58

<1.2

<13

<1.1

<1.5

< 1.1

<25 Co-60

<1.6

<1.8

<1.9

<1.2

<1.7

<3.4 Zn-65

<2.5

<3.8

< 4.6

<3.7

< 1.8

<4.0 Nb-95

<1.2

< 2.2

<2.2

< 0.7

< 2.4

<3.0 Zr-95

<3.5

<4.6

< 2.5

<2.4

<5.1

<5.4 Cs-134

<1.5

< 2.6

< 1.6

<1.1

<2.2

<2.8 Cs-137

< 1.6

< 2.0

< 2.6

<13

<2.5

<3.2 Ba-140'

<5.5

<3.7

< 7.9

<4.6

<8.4

< 9.1 La-14W

< 0.8

<1.6

<2.5

< 0.7

< 2.2

< 2.2 Cc-144

< 23.8

< 20.1

< 20.2

< 17.9

< 37.9

< 23.4 Date Collected 07-26-95 08-30-95 09-27 95 10-25-95 11-29-95 12-27-95 Gross Alpha

<1.1 0.7i 0.5

<0.6

<0.7

<0.9

<1.6 GrossBeta

<1.7 1.91 0.6 2.21 0.7 2.80.5 23f 0.8 2.91 1.0 Be-7

< 17.8

< 20.9

< 28.0

< 22 6

< 25.1

< 233 K-40

< 26.2

< 313

< 38.0

< 36.4

< 34.4

< 32.9 Mn-54

<1.4

< 2.1

<1.9

<13b

<1.6

<2.0 Fe-59

<3.0

<4.0

< 5.7

< 2.9b

<3.6

<4.7 Co-58

< 1.9

< 1.6

<2.4

<23

<1.7

<1.7 Co-60

<1.2

< 1.8

<3.0

<2.1

<3.2

<1.1 Zn-65

<2.9

< 2.9

<2.6

<3.5

<2.8

<2.5 Nb-95

<1.7

<13

<1.6

< 1.9

<3.4

<2.8 Zr-95

<3.1

< 4.9

< 6.9

<5.6

<53

< 5.0 Cs-134

<1.6

< 2.0

< 1.8

< 2.1

<1.9

< 2.4 Cs-137

<13

< 2.2

<2.4

<1.4

< 2.7

<2.0 Ba-140'

< 5.0

< 7.2

< 7.5

< 4.8

<4.7

<5.5 La-14&

<1.0

< 1.6

<1.2

.<1.2

<2.8

<3.0 Ce-144

< 273

< 22.0

< 26.1

< 24.7

< 25.9

< 31.6 d LLD at time of counting.

E-16

I TABLE E-9 SURFACE WATER GROSS BETA, TRITIUM, AND GAMMA ISOTOPIC ACTIVITY (pCi/l) - CL-92 '

t Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-31-95 06-28-95 Gross Beta 1.91 0.4 2.71 0.6 2.81 0.6 13i0.6 2310.6 2.11 0.4 H-3

< 159

< 157

< 173

< 168

< 143

< 165 l

Be-7

< 8.7

< 11.2

< 10.6

< 21.0

< 13.9

< 22.9 K-40

< 33.5

< 20.4

< 29.6

< 33.4

< 30.9

< 30.5 Mn-54

<1.5

<1.0

<1.4

<1.8

<2.0

<2.1 Fe-59

<3.2

< 2.9

<1.7

< 2.0

<4.7

<1.9 Co-58

< 0.9

<1.1

<1.5

<1.7

<1.7

<1.9 Co-60

<1.4

<1.0

<1.5

< 2.1

<2.4

<2.6 Zn-65

< 1.4

<4.0

<3.5

< 2.0

<3.7

<3.8 Nb-95

<1.3

<1.6

<1.3

< 2.4

<2.0

< 2.6 Zr-95

<3.6

<1.6

<3.6

<5.3

<3.5

<5.9 Cs-134

<1.4

<1.4

< 2.0

<1.9

<2.4

<1.2 Cs-137

< 1.4

<1.4

<1.7

<1.4

<1.9

<2.1 Ba-140"

<3.3

<5.5

< 6.0

< 8.9

< 7.7

<5.3 i

La-140"

<1.6

<1.3

<1.8

< 1.1

<2.2

< 1.9 -

t Ce-144

< 11.8

< 23.9

< 11.2

< 295

< 21.9

< 11.4 Date Collected 07-26-95 08-30-95 09-27-95 10-25-95 11-29-95 12-27-95

[

Gross Beta 2.71 0.8 1.8i 66 2.6i 0.6 2.5i 0.6 H-3

< 169

< 156

< 153

< 149 I

Be-7

< 10.2

< 10.5

< 18.4

< 28.0 K-40

< 25.2

< 34.0

< 33.6

< 33.0 Mn-54

<1.9

<2.0

<1.9

<1.2 j

Fe-59

<3.7

<3.6

<4.0

<3.3 i

Co-58

< 23

<1.2

<2.5

< 2.5 Co-60

<1.6

<2.0

<23

<2.0 Zn-65

< 2.8

<3.1

<3.6

< 2.5 Nb-95

<1.4

<2.1

< 2.7

< 2.7 Zr-95

<2.7

<43

< 4.5

< 5.6 Cs-134

<1.7

< 2.1

< 2.6

<1.9 Cs-137

<23

< 1.8

< 2.5

<1.9 Ba-140"

<3.6

< 7.7

<4.5

<5.0 La-140"

<1.6

<1.0

< 1.8

< 1.7 i

Ce-144

< 27.4

< 17.6

< 24.5

< 21.0

" LLD at time of counting.

j l

1 E-17

I 1

TABLE E-10 I

SURFACE WATER GROSS BETA.TRITIUht AND GAMMA ISOTOPIC ACTIVITY (oCi/l) - Cl 99 Date Colkded 01-25-95 02-22-95 03-29-95 04-26-95 05-31-95 06-28-95 Gross Alpha

<0.8

< 0.9

<2.2

<1.1

<1.5

< 0.9 Gross Beta 1.8-10.6 25i0.7 2.51 1.5 2210.8 1.7113 1.7i 0.8 Be-7

< 29.2

<6.4

< 225

< 13.7

< 233

< 28.7 r

- K-40

< 43.2

< 19.8

< 33.5

< 32.0

< 403

< 41.6 Mn-54

- < 2.8

<0.9

<1.1

<2.1

<2.5

<23 Fe-59

<5.9

<2.0

<4.2

<4.2'

<5.7

< 6.4 l

Co-58

<1.9

<1.2

<1.0

<1.9

<2.2

<1.6 Co-60

<2.2

<1.4

<2.2-

<2.0

<2.1

<2.5 Zn-65

< 5.8

<3.4

<1.6

<3.4

< 5.0

<6.1 Nb-95

<3.1

<1.4

<1.9

<2.2

< 2.0

<2.7 Zr-95

<3.0

<3.2

<2.5

< 2.3

< 6.8

<5.4-

. Cs-134

<2.1

<1.0

<2.0

< 1.8

<33

<2.9 Cs-137

<2.9

<1.5

<1.8

<2.0

<3.1

<3.1 Ba-14(f

< 9.9

<3.0

< 8.0

<8.2

< 10.4

< 8.9 La-147

< 2.5

< 0.6

<1.9

<0.9

< 2.5

< 2.1 Ce-144

< 263

< 23.1

< 34.5

< 36.5

< 43.2

< 20.5 Date Collected 07-26-95 08-30-95 09-27-95 10-25-95 11-29 95 12-27-95 Cross Alpha 4.21 1.0 1.11 0.7

<1.1 1.71 1.1

< 1.4

<2.1 Gross Beta 4.41 0.9 2.4i 0.8 2.4t 0.9 2.8i 0.9 3.111.0

< 2.4 Be-7

< 303

< 23.4

< 253

< 34.0

< 16.1

< 283 K-40

< 41.2

< 36.8

< 40.1

< 35.5

< 37.7

< 41.6 i

Mn-54

<2.8

<1.6

<1.9

<1.6

< 2.1

<2.5 Fe-59

< 6.8

<2.5

<4.5

<5.5

< 5.2

<5.5 Co-58

<1.4

<2.9

< 2.8

< 2.9

<2.0

<1.4 Co-60

<23

< 2.7

<3.0

<33

< 2.1

<2.8 Zn-65

<4.4

<3.7

<4.6

<5.0

< 2.4

< 6.1 Nb-95

<1.6

<2.7

<2.9

<3.5

< 2.8

<3.8 Zr-95

< 5.8

<5.5

< 6.6

<7.7

<3.7

<4.8 i

Cs-134

<3.2

< 2.9

<23

< 2.5

<13

<33 Cs-137

<33

< 2.8

<2.0

<2.9

<23

<2.4 Ba-14&

< 9.4

< 9.8

< 11.1

< 10.9

< 8.0

<8.4 La-14(f

<1.9

<2.7

<23

<1.9

< 0.9

<6.9 Cc-144

< 22.9

< 20.2

< 22.8

< 21.0

< 33.8

< 23.5 d LLD at time of counting.

E-18

.. _... ~... -..

l I

TABLE E-12 l

SURFACE WATER OUARTERLY TRITIUM COMPOSITE (pCi/l) i l

l l

1995 Glc,9 CL-10"

_CL-D CL-90

_C_L-91 CL-99 '

1st Quarter

<173

<173

<173

<173

<173

<173 2nd Quarter

<164

<164

<164

<164

<164

<164

. 3rd Quarter

<153

<153

<153

<153

<153

<153 4th Quarter

<157

<157

<157

<157

<157

<157-l-

a controllocation L

TABLE E-13 WELL. WATER OUARTERLY TRfflUM COMPOSITE (pCi/1) 1995 CL-7D CL-12 (Untreated)

CL-12 (T-eated) 1st Qdarter

<173

<173

<173 2nd Quarter

<164

<164

<164 3rd Quarter

<153

<153

<153.

4th Quarter

<157

<157

<157 TABLE E-14 DRINKING WATER OU ARTERLY TRFFIUM COMPOSITE (pCi/l) f:

1995 1st Quarter

<173 2nd Quarter

<164 3rd Quarter

<153 4th Quarter

<157 l

i E-19

TABLE E-15 WELL WATER SEMIMONTHLY IODINE ACTIVITY

'l (pCi/l) l l

Dple CL-ZD CL-12 Untreated CL-12 Treated 01/11/95

<0.4

<0.3

<0.5 01/25/95

<0.4

<0.4

<0.4 02/08/95~

<0.2

<0.2

<0.2 02/22/95

<0.4

<0.3

<0.3 03/08/95

<0.4

<0.4

<0.5 03/22/95

<0.4

<0.4

<0.4 04/05/95

<0.5

<0.4

<0.5 04/19/95

<0.2

<0.2

<0.2

]

05/03/95

<0.3

<0.2

<0.2 05/17/95

<0.2

<0.2

<0.2

)

05/31/95

<0.2

<0.2

<0.2 06/14/95

<0.2

<0.2

<0.2 06/28/95

<0.3

<0.3

<0.3

{

07/12/95

<0.4

<0.3

<0.4 -

07/26/95

<0.3

<0.3

<0.3 08/09/95

<0.5

<0.5

<0.5 08/23/95

<0.3

<0.3

<0.3 09/06/95

<0.4

<0.4

<0.4 09/20/95

<0.2

<0.2

<0.2 10/04/95

<0.3

<0.3

<0.3 10/18/95

<0.4

<0,5

<0.5 11/01/95

<0.4

<0.4

<0.5 l

11/15/95

<0.4

<0.4

<0.4 11/29/95

<0.4

<0.4

<0.4 12/13/95

<0.4

<0.5

<0.2 12/27/95

<0.3

<0.4

<0.4

~

t E-20

TABLE E-16 WELL WATER MONTHLY COMPOSITE ACTIVITY CL-7D (DCi/l)

Collection Period Ianuary February March April May lure Gmss Alpha

<1.4

< 0.'l

<1.8

<1.1

<1.6

- <1.0 Gross Beta 1.5i 0.7 1.4f 0.6

<1.8

<1.4

<2.3

<1.2 Be-7

< 23.9

< 12.5

< 16.4

< 14.1

< 7.6

<12.9 K-40

< 41.5

< 21.1

< 32.7

< 37.0

< 23.9

<34.3 Mn-54

<1.9

< 1.0

< 2.2

<2.6

< 0.7

<2.3 Fe-59

<3.9

<3.0

<2.0-

<6.3

<2.4

<2.0 Co-58

< 1.6

<1.3

<1.9

< 2.6

<1.3

<1.9 Co-60

< 1.8

<1.4

< 0.8

< 2.0

<1.2

<1.5 Zn-65

< 2.7

<1.3

<3.5

<6.3

<3.6

<3.5 Nb-95

<3.9

<1.8

<2.5

< 2.6

<1.1

<2.7 Zr-95

< 5.5

<2.3

<4.6

<6.8

<2.7

<5.2 Cs-134

< 2.4

<1.3

<1.1

<2.9

<1.8

<1.3 Cs-137

<1.9

<1.4

<1.1

< 2.8

<1.6

<2.5 Ba-140" -

< 6.6

<4.1

<7.3

< 9.5

<5.7

<7.4 La-14&.

< 2.5

<1.4

<2.1

<1.9

<1.4

<1.2 Cc-144

< 17.4

< 19.7

< 19.8

< 18.1

< 26.2

<31.6

)

Collection Period fulv Aucust September October November December Gross Alpha 1.41 0.7

< 0.7

<1.0 '

<1.2

<1.4 1.31 0.8 Gross Beta 1.2i 0.7

< 1.2

<1.2

<1.3 1.50.9 1.6i 0.8 Be-7

< 15.2

<9.9

< 20.3

< 25.0

< 11.1

<22.5 j

K-40

< M.4

< 20.5

< 20.0

< 352

< 28.2

<23.9 Mn-54

< 2.2

< 0.8

<1.2

< 2.0

<1.6

<2.0 '

Fe-59

<3.4

<2.9

< 2.7

< 4.7

<4.4

<5.1 Co-58

<1.8

<1.4

< 1.2

<1.4

< 2.1

<2.0 i

Co-60

< 2.6

<1.1

<1.5

<1.6

<2.1

<1.8 Zn-65

<3.9

<1.3

<4.1

<5.8

<2.8

<3.5 Nb-95

< 2.8

<1.6

<1.2

<1.6

<2.3

<2.7 Zr-95

<6.1

<1.7

<2.0

< 4.9

<3.5

<3.6 i

Cs-134

< 1.2

< 1.4

<1.6

< 2.5

<2.3

<2.2 Cs-137

<1.3

<1.6

<1.1

< 2.2

< 1.9

<2.2 Ba-140'

< 7.7

< 5.3

<4.9

<5.5

<7.3

<8.3 La-14&

<1.3

< 0.9

<1.3

< 1.7

<1.8

<4.8 Cc-144

< 20.6

< 16.9

< 17.0

< 33.6

< 29.5

<13.4

^ LLD at time of courding.

~

E-21

- - - ~

~_ - _

i TABLE E-17 f

WELL WATER MONTHLY COMPOSITE ACTIVITY l

k CL-12 UNTREATED (DCi/l)

I Collection Period ' lanuary Februarv March April Mav lune t

Gross Alpha

<3.0

<1.7

<4.0

<2.4

<1.9

< 2.4 Gross Beta

<2.5 2.6t l.2

<3.6 4.11.9

<2.6

<23 Be-7

< 17.5

< 18.8

<183

< 253

<13.0

<223 K 40

< 34.1

< 32.6

< 33.6

< 35.2

<24.7

<32.2 Mn-54

<2.4

< 1.8

<1.8

<2.4

<1.4

<2.2 I

Fe-59

<3.0

< 5.4

<3.5

<3.8

<1.5

<23 Co 58

<1.4

<2.2

<2.1

<23

<1.3

<1.2 Co-60

< 2.2

<1.0

<1.6

<3.0

<1.7

<2.5 -

Zn <2.2

<4.2

<3.4

<4.9

<2.7

<3.6 '

Nb-95

<2.6-

< 2.9

< 2.4

<3.4

<1.6

<2.8

- Zr-95

<5.6

< 5.0

<2.6

<7.2

<3.6

<63 L

Cs-134

<1.4

<2.2

<1.9

<2.6

<1.8

<2.6 Cs-137

< 2.1

<1.8

<2.2

<2.9

<1.8

<2.5 l

Ba-140'

<3.7

<6.2-

<5.2

<4.4

<53

<6.0 i

La-140'

< 1.2

<1.6

<1.0

<2.6

<1.4

<0.9 l

Ce-144

<16.0

<11.4

< 21.5

< 34.8

<25.6

<22.0 Collection Period lulv August Scotember Odober November December

. Gross Alpha

<2.1

<1.7

<1.9

<2.0

<3.2

<2.9

- Gross Beta

<2.4

<23

<2.3 2.71 1.6

<3.0

<2.4 Be-7

< 8.9

< 23.5

< 19

< 203

<313

<28.2 i

K-40

< 20.4

< 30.5

< 30.1

< 32.8

<24.7

<40.7 Mn-54

< 1.0

< 2.0

<23

<1.2

< 2.8

<1.9 Fe-59

<2.8

<5.1

<2.0

<5.1

< 5.5

<53 Co-58

<1.5

<2.0

<1.6

<1.1

< 2.4

<2.3 Co-60

<1.5

<2.6

<2.1

<2.0

<3.4

<3.1 Zn-65

< 2.1

<3.8

<2.5

<3.6

< 5.9

<4.5 Nb < 0.8

<2.7

< 2.1

<2.7

<4.1

<3.4 Zr-95

<2.9

<3.9

<3.5

< 4.8

< 7.1

<5.5 Cs-134

<1.4

< 2.6

<2.3

<1.1

< 2.8

<3.1 Cs-137

<1.1

< 2.7

<2.0

<1.7

< 2.4

<2.8 Ba-140'

<4.7

< 7.9

<7.5

< 7.6

<5.6

<8.7 La-14(f

< 1.0

<2.3

<2.6

<1.5

<1.0

<6.0 Ce-144

< 9.9

< 23.1

< 24.9

< 133

<173

<21.1 q

d LLD at time of countmg.

j l

l E-22 l

m__.

.. ~ _.

~. _.

TABLE E-18 WELL WATER MONTHLY COMPOSITE ACTIVITY CL-12 TREATED (DCi/1)

Collection Period Ianuary Februan March April May Tune Gross Alpha

<3.1

<1.7

<3.8

<2.8

< 2.0

< 2.2 Gross Beta

< 2.6 2.51 1.2

<3.#

2.21 1.2

<2.5

< 2.4 Be-7

< 20.6

<11.8

<17.#

< 14.2

<17.5

<143 l

K-40

< 31.2

< 31.7

< 40.1

< 39.5

<32.7

<45.7 Mn-54

<1.8

<2.0

<2.3

<2.4

<1.0

<2.7 Fe-59

<5.3

<3.9

<4.6

<4.7

<3.2

<2.9 Co-58

<2.4

<2.3

<2.3

< 2.0

< 2.1

<2.1 Co-60

<1.7

<2.2

<2.4

<1.2

<2.2

<2.7 Zn-65

<3.1

<3.9

<4.2

<3.8

<4.5

<2.5 Nb-95

<1.3

< 2.4

< 2.5

< 2.6

< 1.7

<3.3 Zr-95

<6.2

<5.1

< 2.7

<3.1

<4.2

<6.6 Cs-134

<1.9

<2.6

<3.1

<2.2

< 1.2

<1.7 Cs-137

<23

<1.7

< 2.7

<1.8

<1.8

<1.9 Ba-140'

<53

<5.2

< 8.9

<4.5

< 7.5

- <7.0 La-140"

<13

< 2.0

<1.2

<1.0

<1.5

<33.

Ce-144

< 323

< 32.7

< 16.1

< 14.5

<27.8

<43.2 Collection Period lulv Aucust September October November December j

Gross Alpha

<2.4

<1.9

<2.2

< 2.5

<3.2 2311.7 Gross Beta

<2.4

<2.2

<2.4

<2.4

<3.0 4.11 1.6 Be-7

< 20.0

< 153

< 233

< 13.9

< 8.9

<21.4 K-40

< 33.0

< 45.5

< 42.0

< 35.6

<19.8

<29.2 Mn-54

< 2.1

<3.4

< 2.6

< 2.1

<1.2

<1.9 Fe-59

<5.2

< 2.7

<5.2

< 7.6

<1.9

<4.4 Co-58

<2.0

<2.2

<2.1

<33

<1.0

<2.2 Co-60

< 1.9

< 2.4

< 2.1

<23

< 1.1

<2.1 Zn-65

<3.5

<2.3

<5.3

<4.5

<4.0

<3.0 Nb-95

< 2.0

<2.8

<2.7

<1.9

<1.3

<3.2 Zr-95

<3.5

<5.9

< 2.9

<3.7

<3.0

<6.2 Cs-134

<1.6

<1.8

<1.5

' 2.4

<1.4

<1.2 Cs-137

<1.8

< 2.6

< 2.9

<13

<13

<1.4 Ba-140'

< 6.2

< 8.9

< 5.4

< 8.5

<4.0

<8.7 La-140'

<2.1

<1.3

<2.6

<2.4

< 0.5

<43 Cc-144

< 30.0

< 22.6

< 41.8

< 143

<18.0

<39.1 d LLD at time of counting.

E-23

+n i

1 i

TABLE E-19 DRINKING WATER ACTIVITY - CL-14 (DCi/l) l Date Collected -

01-25-95 02-22-95' 03-29-95 04-26-95 05-31-95 06-28-95 Gross Alpha

< 0.4

<0.3

<13

<0.4

< 0.7

< 0.4 Gross Beta 1.9i03 1.91- 03

<23 1.81 0.4 1.5i 0.5 2.0103 Be-7

<9.0

< 21.7

< 15.'

< 23.0

< 18.1

< 10.5 K-40

< 35.0

< 39.9

< 35.0

< 44.0

< 32.5

< 29.0 Mn-54

- <13

<2.5-

<2.0

<2.2

<1.8

<1.5 Fe-59

<1.7

<6.2

<3.1

<4.1

<3.9

<3.1 i

Co-58

<1.6

<1.2

<1.6

.<2.6

<2.2

<2.0 Co-60

<1.7

<2.6

<2.0

<3.0

<2.1

-<2.0 Zn-65

<2.7

<23

<2.3

<3.0

<5.4

<23 Nb-95

<1.9

<3.2

<13

<1.7

<2.5

<1.0 Zr-95

< 2.0

<5.2

<4.8

<6.0

<4.4

<3.6 Cs 134

<1.9

<1.9

<2.4 L

<3.1

<23'

<1.2 l

Cs-137

<2.0

<2.6

<23

<23.

<1.9

< 2.2 Ba-140'

<4.4

< 9.0

<5.5

<5.6

<3.8

-e6.0 La-14&

< 0.8

<1.9

<2.1

<3.2

< 2.1

<2.2 i

Cc-144

< 233

< 433

< 18.3

< 193

.< 23.6

< 28.8 Date Collected 07-26-95 08-30 45 09-27-95 10-25-95 11-29-95 12-27-95 Gross Alpha

<0.3

< 0.4

< 0.8 0.6103

<0.5

<0.3 Gross Beta 1.2103 2.0103 1.8i 0.6 23103 2310.4 1.8i 03 Be-7

< 20.6

< 193

< 29.2

< 12.2

< 27.4

< 14.4 K-40

< 33.4

< 32.7

< 37.0

< 19.6

< 31.9

< 31.7 Mn-54

<13

< 0.

<2.2

<1.2

<1.9

< 2.0 Fe-59

<4.1

<4.1

<3.5

<2.8

< 2.6

< 5.5 Co-58

<2.6

<1.5

< 2.9

<1.4

< 2.8

< 2.0 Co-60

<2.2

<1.9

<2.7

<1.2

<1.9

< 2.4 Zn-65

<4.0

<4.0

<5.6

< 4.0

< 4.5

<4.1 Nb-95

<3.1

<1.9

<3.0

<1.5

< 2.8

<2.3 Zr-95

<2.8

<5.7

<5.8-

< 2.2

< 3.5

< 2.7 Cs-134

<1.9

< 2.0

<2.8

<1.0

<2.3

<2.7 Cs-137

<1.6

< 2.1

<2.6

<13

<2.1

<2.2 Ba-140'

<53

<6.1

<5.8

<4.3

< 7.4

<93 La-147

<1.1

<2.2

<1.5

<1.5

<1.2

< 5.0 Ce-144

< 19.9

< 20.0

< 13.0

< 16.6

< 14.2

< 17.0

^ LLD at time of counting.

E-24 e

_ _ _.. _ _ _..... ~.. _. ~.. _ _ _ _.

1 1

l..

TABLE E-20 MILK ACTIVITY - CL-98' foci /1) i Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-10-95 Sr-90 1.9i 0.4 NS" NS' '

NS6 1.5i 0.6 I-131

< 0.4

< 0.4 Be-7

<163

< 21.5 i

K-40 19501 80 14001 60 Mn-54

<2.5

< 2.5 Fe-59

<3.7

<53 Co-58

<3.4

<1.5 Co-60

<5.0

<3.5 Zn-65

< 7.8

<4.9 j

Nb-95

<3.7

<3.0 Zr-95

<5.7

<5.1 Cs-134

<4.0

'<2.8 Cs-137

<3.5

< 2.6 Ba 147

< 10.7

<43 La-14&

<1.2

<1.1 Ce-144 -

< 18.1

< 37.5 Date Collected 05-24-95 06-07-93 06-21-95 07-05-95 07-19-95 Sr-90 1.4 i 0.4 13103 1.7i 0.4 1.5103 2.01 0.5

)

I-131

<0.2

< 0.4

<03

< 0.4

< 0.2 Be-7

< 15.5

< 24.0

< 19.6

< 17.5

< 25.5 K-40 15101 60 1990 80 18901 70 18801 80 2150t 90 i

Mn-54

<23

<3.1

<1.4

<3.0

<3.4 Fe-59

<5.2

< 7.1

<43

<4.0

< 8.1 Co-58

<2.2

<2.8

<1.6

< 2.6

<3.0 Co-60

<33

<3.5

<3.5

<3.9

<3.6 Zn-65

<4.1

<3.7

<6.1

<4.7

< 9.6 Nb-95

<2.2

<2.0

<2.6

< 2.5

<2.9 Zr-95

<3.0

<5.4

<5.4

<5.2

< 6.7 Cs-134

<2.8

<1.5

<23

< 1.7

<2.0 Cs-137

< 2.8

< 2.4

<2.7

<1.8

<33 Ba-147

< 8.8

<6.5

<4.3

< 83

< 103 i

La-147

< 2.5

<13

<2.1

<1.4

< 2.2 Ce-144

< 193

< 18.7

< 21.0

< 17.6

< 24.0 a LLD at time of counting.

'l b NS = No sample; sample not available.

)

E-25

TABLE E-20 (Cont'd)

Date Collected 08-02-95 08-16-95 08-30-95 09-13-95 09-27-95 Sr-90 13i0.4 1.2i 03 1.21 0.6 0.9103 2.4105 I-131

<0.2

< 0.2

< 0.4

< 0.4

< 03 Be-7

< 24.1

< 22.0

< 12.0

< 13.8

< 16.5 K-40 2090i 80 21201 80 19501 70 19901 90 2030i 90 Mn-54

<3.2

<3.1

<2.5

< 2.7

<2.9 Fe-59

<4.0

< 73

<6.3

<4.8

<6.7 Co-58

< 2.7

<1.7

<1.1

<2.7

<3.3 Co-60

<4.2

<4.6

<3.2

< 2.8

<2.1 Zn-65

<7.9

< 8.8

< 7.0

<4.5

<6.5 Nb-95

< 3.1

<3.1

<2.3

<2.7

<3.1 Zr-95

< 7.8

<7.3

<5.1

<5.3

<8.1 Cs-134

<3.6

<2.3

<3.1

<3.9

<3.9 Cs-137

<2.9

<3.7

<2.7

< 3.8

<3.6 Ba-14(f

< 7.1

< 11.8

< 7.6

< 10.1

<8.5 La-14(f

<1.6

<1.2

<13

<33

<1.4 Ce-144

< 273

< 233

< 28.2

< 483

< 30.9 Date Collected 10-11-95 10-25-95 11-24-95 12-27-95 Sr-90 1.4i 0.4 1310.4 1.41 0.5 1.8i 0.4 I-131

< 0.4

< 0.4

<0.5

<0.6 Be-7

< 303

< 21.5

< 20.2

< 323 K-40 1920i 100 2010i 80 21401 90 21601 90 Mn-54

<1.8

< 1.2

<2.7

< 2.5 Fe-59

< 7.5

<5.1

<33

< 7.4 Co-58

<3.4

< 2.7

<2.8

< 2.5 Co-60

< 5.4

<3.8

<5.2

<4.9 Zn-65

< 5.2

< 5.6

< 9.0

< 5.5 Nb-95

<33

< 2.7

<3.0

< 2.1 Zr-95

< 7.9

<3.8

< 7.9

<3.5 Cs-134

<4.3

<1.3

<23

<3.9 Cs-137

<4.0

< 2.6

<4.0

< 3.8 Ba-14(f

< 11.9

< 8.1

< 11.5

< 11. 4 La-14(f

<1.2

< 1.0

<2.7

< 2.9 Ce-144

< 38.6

< 32.7

< 22.9

< 30.1 a LLD at time of counting.

E-26

TABLE E-21 MILK ACTIVITY - CL-116 (control)(DCi/l)

I Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-10-95 Sr-90 1.01 0.3 1.0i 0.4 1.71 0.4 1.6i 0.5 1.7i03 1-131

< 0.4

< 03

< 0.4

<0.2

<03 Be-7

< 22.6

< 20.1

< 19.5

< 12.7

< 19.1 l

K-40 1340i 60 11101 70 13001 50 1370160 1380150 Mn-54

<1.6

<3.0

<1.6

<2.0

< 2.1 j

Fe-59

<3.9

<5.9

<4.3

<5.6

<3.9 Co-58

< 1.7

<3.1

< 1.6

<1.5

<2.1 Co-60

<1.7

< 2.7

<2.7

<3.3

<3.4 i

Zn-65

< 3.1

< 6.7

<4.5

< 5.5

< 2.8 Nb-95

<1.1

<3.2

<1.4

<2.4

<3.0 Zr-95

< 4.4

<53

< 4.2

<4.6

<4.4 Cs-134

<1.7

<33

<2.1

<2.7

<2.3 Cs-137

< 2.6

<3.1

< 2.6

<2.4

< 2.8 Ba.140'

<6.0

< 7.4

<83

< 9.6

< 8.0 La-14(f

<1.8

<2.0

<1.4

<1.9

<1.0 Ce-144

< 20.2

< 17.7

< 23.4

< 25.0

< 17.0 Date Collected 05-24 95 06-07 95 06-21-95 07-05-95 07-19-95 Sr-90 1.9i 0.4 2.2i 0.6 0.9t 03 1310.4 1.9i 0.5 1-131

< 0.3

< 0.4

<0.3

<03

< 0.2 Be-7

< 26.0

< 25.6

< 25.4

< 18.2

< 19.7 K-40 1360i 70 1410 60 13401 80 1370i 70 1310t 60 Mn-54

< 2.7

<2.0

< 2.6

<13

< 2.6 Fe-59

<5.9

<3.1

<6.5

<6.2

< 2.4 Co-58

<3.0

<2.7

< 1.7

<2.0

< 2.1 Co-60

< 2.9

<3.2

<4.1

<3.1

<3.0 Zn-65

< 6.2

<3.7

< 5.0

<5.9

< 5.4 Nb-95

<1.4

< 2.6

<3.0

<1.1

< 2.6 Zr-95

< 5.6

< 6.4

<7.2

< 2.6

<4.0 Cs-134

<3.2

< 2.8

<3.6

<2.4

<2.8 Cs-137

< 2.7

<13

<3.6

<2.0

< 2.0 Ba-140"

< 105

< 9.8

<8.8

<4.9

< 8.0 La-14(f

< 2.0

< 2.0

<1.9

<1.7

< 2.5 Ce-144

< 213

< 36.6

< 173

< 29.6

< 203 dLLD at time of counting.

E-27

..~.~....- -.

h TABLE E-21 (cont'dJ.

Date Collected 08-02 08-16-95 08-30-95 09-13-95 09-27-95 Sr-90 1.41 0.4 1.51 03' 1.1: 03 13i0.4 1.5i 0.4 I

I-131

<0.2

< 0.4

< 03.

<0.4

<03 i

Be-7

< 10.6

< 17.9

<14.7

< 10.8

<19.1 r

K-40 13301 60 1310t 60 1380: 50 1380t 70 13401 60

+

Mn-54

<2.6

<2.2

<1.7

<1.7

<1.2 Fe-59

<5.9

<4.6

<3.2

<3.0

<4.9 Co-58

< 2.6

<1.8

<1.7

<13

<2.5-Co-60

<3.2

<3.2

< 1.7

<2.6

<2.8 Zn 65

<2.6

<4.7

<3.1

<43

<2.9 Nb-95

<2.6

<1.6

<1.8

<2.1

<2.2 Zr-95

<5.2

< 2.9

<4.0

<3.9

<5.5 Cs-134

<3.0

<2.4

<1.5

<3.1

<1.7 Cs-137

< 2.1

<2.3

<2.0

<2.5

<2.5 Ba-140'

< 9.1

. < 9.6

<6.4

<6.2

<9.1 La-140'

<1.8

< 1.5 -

<1.2

<1.4

<1.2

{

Ce-144

< 37.9

< 15.0

< 26.4

< 19.4

< 33.7 Mollected 10-11-95 10-25-95 11-24-95 12-27-95 Sr-90 1.91 0.4 1.6i 0.4 2.2:0.5 1.0i03 l

I-131

< 0.4

< 0.4

<0.4

<03 Be-7

< 31.9

< 12.6 -

< 23.7

< 19.9 K-40 14001 80 1390i 50 1420- 70 1360i 70 Mn-54

<2.7.

<1.2

<2.8

<3.0 4

Fe-59

<6.2

<2.9

<5.6

<3.0 1

Co-58

<1.9

<1.5

<2.7

<2.7 i

Co-60

<3.9

< 2.2

<3.2

<3.1

{

Zn-65

<3.7

<3.2

< 3.6

< 7.6 j

Nb-95

<3.7

< 1.7

<1.2

<2.2 Zr-95

<3.8

< 1.6

< 5.6

<6.9 Cs-134

<2.6

<1.7

<2.2

< 1.8 j

Cs-137

<33

<1.9

<2.7

<3.6 Ba-140'

< 12.5

< 6.5

< 8.6

< 10.2 La-140'

<3.2

< 0.7

<1.9

<2.8 Ce-144

< 26.2

< 18.2

< 18.7

< 21.2 aLLD at time of counting.

E-28

~. _ _

m 1

i TABLE'E-22 j

GRASS ACTIVITY - CL-1 (DCi/c wet) 4 Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-10-95 Be-7 11.47i 0.28 6.% i 0.20 10.261 0.23 2.5810.11 1.10 i 0.06 K-40 2.99 i 0.25 2.74 i 022 2.61 i 0.22 6.28 i 0.18 4.84 i 0.12 i

Mn-54

< 0.009

< 0.008

< 0.013

< 0.007

< 0.005 1

l Fe-59

< 0.012

< 0.021

< 0.023

< 0.013

< 0.005 Co-58

< 0.012

< 0.010

< 0.013

< 0.008

< 0.004 Co 60

< 0.015

< 0.006

< 0.015

< 0.008

< 0.006 Zn-65

< 0.024

< 0.017

< 0.013

< 0.023

< 0.005

\\

Nb-95

< 0.012

< 0.011

< 0.006

< 0.006

< 0.005 I

Zr-95

< 0.013

< 0.018

< 0.025

< 0.013

< 0.006 l-131

< 0.009

< 0.012

< 0.018

< 0.007

< 0.007 Cs-134

< 0.014

< 0.011

< 0.015

< 0.008

< 0.006 Cs-137

< 0.013

< 0.012

< 0.013

< 0.008

< 0.006 1

i Ba-14& -

< 0.038

< 0.033

< 0.027

< 0.024

< 0.015 La-14&

< 0.005

< 0.006

< 0.012

< 0.003

< 0.002 Cc-144

< 0.10

< 0.089

< 0.066

< 0.085

< 0.029 i

1 i

i i

i Date Collected 05-24-95 06-07-95 06-21-95 07-05-95 07-19-95

~

Be-7 1.091 0.07 2.151 0.09 1.601 0.07 2.721 0.12 1.27i 0.11 l

K-40 3.081 0.14 4.49 0.14 3.381 0.13 4.331 0.20 6.34i 0.27 Mn-54

< 0.004

< 0.005

< 0.005

< 0.007

< 0.007 i

Fe-59

< 0.005

< 0.012

< 0.005

< 0.009

< 0.025 j

Co-58

< 0.005

< 0.005

< 0.003

< 0.004

< 0.005 i

Co < 0.007

< 0.007

< 0.008

< 0.009

< 0.011 Zn-65

< 0.011

< 0.014

< 0.013

< 0.011

< 0.025 Nb-95

< 0.004

< 0.005

< 0.006

< 0.004

< 0.011 Zr-95

<0.0%

< 0.006

< 0.011

< 0.017

< 0.014 1-131

< 0.007

< 0.005

< 0.006

< 0.010

< 0.010 Cs-134

< 0.005

< 0.007

< 0.004

< 0.006

< 0.010

{

Cs-137

<0.0%

< 0.005

< 0.007

< 0.007

< 0.010 l

Ba-147

< 0.011

< 0.019

< 0.009

< 0.030

< 0.035 La-147

< 0.004

< 0.005

< 0.003

< 0.006

< 0.003 l

Ce-144

< 0.032

< 0.084

< 0.034

< 0.054

< 0.066 dLLD at time of counting.

E-29 e

1 i

4 1

TABLE E-22 iContidl i

Date Collected 08-02-95 08-16-95 08-30-95 09-13-95 09-27-95 Be-7 2.00i 0.09 2.21i 0.10 3.141 0.18 3.251 0.12 3.511 0.13 4

K-40 5.34i 0.18 8.% i 0.22 537i 0.30 4.99i 0.19 5.641 0.22 Mn-54

< 0.006

< 0.005

< 0.010

< 0.006

< 0.010 3

Fe-59

' < 0.016

< 0.017

< 0.015

< 0 012

< 0.008 Co-58

< 0.007

< 0.003

< 0.006

< 0.007

< 0.004 Co-60

< 0.008

< 0.009

< 0.014

< 0.010

< 0.011 J

Zn-65

< 0.023

< 0.015

< 0.021

< 0.026

< 0.021 4

Nb-95

< 0.006

< 0.008

< 0.007

< 0.007

< 0.010 Zr-95

< 0.010

< 0.008

< 0.025

< 0.014

< 0.018 i

1-131

< 0.005

< 0.010'

< 0.016

< 0.010

<0.013 Cs-134

< 0.006

< 0.008

< 0.013

< 0.008

< 0.006 Cs-137

< 0.007

< 0.008

< 0.013

< 0.008

< 0.009 3

Ba-14&

< 0.015

< 0.025

< 0.(40

< 0.024

< 0.033 La-147

< 0.004

< 0.006

< 0.010

< 0.004

< 0.007 Ce-144

< 0.042

< 0.055

< 0.089

< 0.040

< 0.071 Date Collected 10-11-95 10-25-95 11-29-95 12-27-95 Be-7 3.18i 0.18 1.011 0.92 5.72 0.28.

NS6 K-40 4.75i 0.27 6.251 0.24 6.23 0.35 Mn-54

< 0.011

< 0.008

<0.013 Fe-59

< 0.015

< 0.016

< 0.021 Co-58

< 0.010

< 0.007

< 0.016 Co-60

< 0.013

< 0.011

< 0.018 Zn < 0.022

< 0.016

< 0.058 l

Nb-95

< 0.033

< 0.009

< 0.010 Zr-95

< 0.022

< 0.009

< 0.022 I-131

< 0.017

< 0.007

<0.0M t

Cs-134

< 0.015

< 0.010

< 0.017 Cs-137

< 0.014

< 0.008

< 0.018 Ba-147

< 0.045

< 0.029

< 0.056 La-147

< 0.009

< 0.003

< 0.010 Ce-144

< 0.091

< 0.064

< 0.14 aLLD at time of counting.

6NS= No sample: sample not available 1

1 E-30 I

l l

TABLE E-23 GRASS ACTIVITY - CL-2 (DCi/a wet)

Date Collected 01-25-95 02-22 95 03-29-95 04-26-95 05-10-95 Be-7 834i 0.16 9.611 0.25 933i 0.21 1.551 0.10 0.681 0.06 K-40 2.51i 0.14 2.231 0.20' 2.67i 0.18 6.441 0.22 4371 0.15

. Mn-54

< 0.007

< 0.010

< 0.011

< 0.007

< 0.006 Fe-59

< 0.006

< 0.023

< 0.018

'< 0.018

< 0.011 l

Co-58

< 0.006

< 0.010

< 0.006

< 0.005

< 0.004

- Co-60

< 0.008

< 0.014

< 0.012

< 0.009

< 0.008 f

Zn-65

< 0.013

< 0.033

< 0.014

< 0.021

< 0.015 Nb-95

< 0.007

< 0.011

< 0.009

< 0.005

< 0.006 Zr-95

< 0.012

< 0.020

< 0.013

< 0.010

< 0.009 1-131

< 0.007

< 0.009

< 0.015

< 0.007

< 0.008 Cs-134

< 0.008

< 0.011

< 0.011

< 0.010

< 0.007 Cs-137

< 0.007

< 0.010

< 0.011

< 0.006

< 0.005 Ba-147

< 0.016

< 0.020

< 0.042

< 0.015

< 0.019 La-147

< 0.005

< 0.005

< 0.009

< 0.007

< 0.005 Cc-144

< 0.048

< 0.073

< 0.11

< 0.054

< 0.045 Date Collected 05-24 06-07 95 06-21-95 07-05-95 07-19-95 Be-7 0.951 0.63 0.841 0.07 1.141 0.07 1.92i 0.11 2.45i 0.*/8 K-40 4311 0.15 6.191 0.15 6.85i 0.15 6.89 0.25 9.541 0.17

- Mn-54

< 0.004

< 0.005

< 0.004

< 0.009

< 0.005 Fe-59

< 0.007

< 0.013

< 0.006

< 0.015

< 0.009 Co-58

< 0.004

< 0.004

< 0.005

< 0.008

< 0.005 Co-60

< 0.008

< 0.005

< 0.008

< 0.013

< 0.008 1

Zn-65

< 0.012

< 0.010

< 0.009

< 0.021

< 0.018 Nb-95

< 0.003

< 0.005

< 0.005

< 0.006

<0.0%

Zr-95

< 0.010

< 0.011

< 0.006

< 0.013

< 0.011 1-131

< 0.008

< 0.005

< 0.005

< 0.009

< 0.004 Cs-134

< 0.006

< 0.007

< 0.005

< 0.009

<0.0%

Cs-137

< 0.0 %

< 0.006

< 0.006

< 0.007

< 0.004 Ba-14&

< 0.022

< 0.018

< 0.019

< 0.019

< 0.017 La-14&

< 0.004

< 0.004

< 0.003

< 0.004

< 0.003 Ce-144

< 0.045

< 0.032

< 0.051

< 0.062

< 0.018 dLLD at time of counting.

d E-31

TABLE E-23 (Cont'd)

Date Collected 08-02-95 08-16-95 08-30-95 09-13-95 09-27-95 Be-7 6.58f 0.19 0.941 0.09 1.63 0.09 3.591 0.17 5.001 0.19 K-40 6.391 0.28 7.751 0.25 8.69 0.22 5.711 0.25 5.66i 0.29 Mn-54

< 0.010

< 0.008

< 0.008

< 0.010

< 0.010 Fe-59

< 0.011

< 0.017

< 0.017

< 0.025

< 0.022 I

Co-58

< 0.006

< 0.007

< 0.003

< 0.010

< 0.009 Co-60

< 0.014

< 0.013

< 0.011

< 0.015

< 0.016 Zn-65

< 0.026

< 0.018

< 0.024

< 0.019

< 0.021 Nb-95

< 0.005

< 0.008

<0.067

< 0.007

< 0.014 Zr-95

< 0.014

< 0.012

< 0.010

< 0.013

< 0.023 I-131

< 0.015

< 0.009

< 0.009

< 0.015

< 0.017 Cs-134

< 0.013

< 0.008

< 0.009

< 0.012

< 0.007 Cs-137

< 0.012

< 0.009

< 0.007

< 0.006

< 0.013 Ba-14(f

< 0.034

< 0.025

< 0.025

< 0.038

< 0.023 La-14(f

< 0.007

< 0.004

<0.002

< 0.005

< 0.008 Ce-144

< 0.080

< 0.035

< 0.(46

< 0.070

< 0.083 Date Collected 10-11-95 10-25-95 11-20 45 12-27-95 Be-7 5.041 0.22 4.281 0.13 5.68: 0.23 NS*

K-40 6.081 0.30 5.371 0.20 7.19: 0.37 Mn-54

< 0.015

< 0.007

< 0.020

~

Fe-59

< 0.030

< 0.013

< 0.028 Co-58

< 0.014

<0.0%

< 0.011 Co-60

< 0.015

< 0.007

< 0.026 Zn-65

< 0.024

< 0.022

<0.035 Nb-95

< 0.011

< 0.005

< 0.019 Zr-95

<0.037

<0.014

< 0.041 I-131

< 0.019

< 0.007

< 0.034 Cs-134

< 0.014

< 0.008

< 0.016 Cs-137

< 0.013

< 0.007

< 0.023 Ba-14(f

< 0.M6

< 0.023

< 0.%9 La-14(f

< 0.012

< 0.005

< 0.009 Cc-144

< 0.13

< 0.M3

< 0.12 "LLD at time of counting.

bNS = No sample; sample not available.

E-32

r l

t l

l l

TABLE E 24 GRASS ACTIVITY - CL-8 (DCi/a wet)

Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-10-95 Be-7 7.601 0.24 11.661 0.19 9.77i 0.17 1.191 0.14 0.71i 0.07 1

K-40 4.581 0.28 3.011 0.16 2.59i 0.17 6.44i 0.30 4.67i 0.13 Mn-54

< 0.011

< 0.006

< 0.008

< 0.013

< 0.006 Fe-59

< 0.026

< 0.021

< 0.008

< 0.025

< 0.010 i

Co-58

< 0.011

< 0.006

< 0.008

< 0.010

< 0.005 Co-60

< 0.010

< 0.013

< 0.010

< 0.007

< 0.006 Zn-65

< 0.014

< 0.040

< 0.029

< 0.014

< 0.006 j

Nb-95

< 0.009

< 0.009

< 0.009

< 0.011

< 0.006 Zr-95

< 0.016

< 0.013

< 0.025

< 0.022

<0.0%

I-131

< 0.011

< 0.017

< 0.014

< 0.013

< 0.008 Cs-134

< 0.012

< 0.012

< 0.010

< 0.008

< 0.005 Cs-137

< 0.010

< 0.014

< 0.010

< 0.010

<0.0%

Ba-140'

< 0.021

< 0.035

< 0.020

< 0.043

< 0.017 i

La-140'

< 0.008

< 0.006

< 0.008

< 0.007

< 0.003 Ce-144

< 0.009

< 0.087

< 0.054

< 0.047

< 0.031 Date Collected 05-24-95 06-07-95 06-21 95 07-05-9; 07-19-95 l

Be-7 1.091 0.07 1.041 0.09 1.891 0.08 2.481 0.11 2.601 0.12 K-40 4.621 0.15 6.06 0.20 5.231 0.17 8.091 0.21 8.611 0.25 Mn-54

< 0.005

< 0.007

< 0.006

< 0.004

< 0.008 Fe-59

< 0.014

< 0.017

< 0.013

< 0.013

< 0.016 Co-58

< 0.006

< 0.004

< 0.005

< 0.006

< 0.008 Co-60

< 0.008

< 0.010

< 0.009

< 0.011

< 0.013 Zn-65

< 0.021

< 0.026

<0.014

< 0.027

< 0.028 Nb-95

< 0.006

< 0.008

< 0.005

< 0.008

< 0.007 Zr-95

< 0.017

< 0.019

< 0.011

< 0.011

< 0.017 1-131

< 0.006

< 0.005

< 0.004

< 0.009

< 0.011 Cs-134

< 0.007

< 0.010

< 0.008

< 0.006

< 0.008 Cs-137

< 0.006

< 0.007

< 0.007

< 0.008

< 0.009 Ba-140'

< 0.015

< 0.026

< 0.020

< 0.020

< 0.030 La-140'

< 0.005

< 0.003

< 0.004

< 0.003

< 0.005 Ce-144

< 0.029

< 0.040

< 0.038

< 0.056

< 0.066 "LLD at time of counting.

i l

E-33

... _. _. _. _ _ _ _ _ ~ _. _. -. _... _ _..

m -.

q l

TABLE E-24 (cont'd)

Date Collected 08-02-95 08-16-95 08-30-95 09-13-95 09-27-95 Be-7 0351 0.07 2.54i 0.08 038i 0.10 4.07i 0.18 4.251 0.14 K-40 6.531 0.22 732i0.16 6.921 0.27 6.11t 0.29 621 0.22 I

Mn-54

< 0.007

< 0.004

< 0.004

< 0.011

< 0.009 Fe-59

< 0.015

< 0.011

< 0.020

< 0.012

< 0.017 Co-58

< 0.008

< 0.003

< 0.005

< 0.010

< 0.004 Co < 0.009

< 0.008

' < 0.007

< 0.012

< 0.009 Zn-65

< 0.009

< 0.021

< 0.016

< 0.017

< 0.013 Nb-95

< 0.005

< 0.006

< 0.010

< 0.009

< 0.009 l

Zr-95

< 0.018

< 0.009

< 0.020

< 0.022

< 0.016 1-131

< 0.006

< 0.004

< 0.011

< 0.013

< 0.008 l

Cs-134

< 0.010

< 0.005

< 0.011

< 0.013

< 0.008 Cs-137

< 0.007

< 0.006

< 0.009

< 0.012

< 0.009 Ba-140'

< 0.028

< 0.015

< 0.034

< 0.026

< 0.028 La-140'

< 0.005

< 0.004

< 0.003

< 0.004

< 0.003 Cc-144

< 0.032

< 0.030

< 0.037

< 0.062

< 0.050 Date Collected 10-11-95 10-25-95 11-29-95 12-27-95 Be-7 3.69i 0.15 2.11 0.13 2.821 0.24 NS6 K-40 4.571 0.20 933i 030 10.611 0.46 Mn-54

< 0.005

< 0.007

< 0.016 Fe-59

< 0.016

< 0.019

< 0.034 Co-58

< 0.004

< 0.011

< 0.008 l

Co-60

< C.o12

< 0.014

< 0.022 I

Zn-65

< 0.028

< 0.022

< 0.034 Nb-95

< 0.008

< 0.010

< 0.017 Zr-95

< 0.012

< 0.014

< 0.027 1-131

< 0.012

< 0.007

< 0.019

-Cs-134

< 0.010

< 0.012

< 0.016 Cs-137

< 0.010

< 0.010

< 0.020 Ba-140'

< 0.017

< 0.036

< 0.062 La-140'

< 0.003

< 0.009

< 0.010 Ce-144

< 0.050

< 0.047

< 0.12 dLLD at time of counting.

bNS - No sample; sample not available.

E-34

TABLE E-25 GRASS ACTIVITY - CL-11 (DCi/c weti Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-10-95 Be-7 12.241 0.19 7.761 0.25 6.441 0.18 1.841 0.10 1.95i 0.08 K-40 1.45i 0.14 2.27i 0.20 3.261 0.21 7.141 0.23 3.991 0.14 Mn-54

< 0.008

< 0.008

< 0.010

< 0.007

< 0.005 Fe-59

< 0.014

< 0.016

< 0.018

< 0.018

< 0.008 Co-58

< 0.004

< 0.012

< 0.009

< 0.007

< 0.005 Co40

< 0.007

< 0.014

< 0.013

< 0.010

< 0.004 Zn45

< 0.026

< 0.M0

< 0.035

< 0.010

< 0.011 Nb-95

< 0.008

< 0.013

< 0.009

< 0.009

< 0.005 Zr-95

< 0.009

< 0.034

< 0.014

< 0.017

< 0.008 I-131

< 0.012

< 0.020

< 0.016

< 0.009

< 0.003 Cs-134

< 0.009

< 0.013

< 0.011

< 0.011

< 0.005 Cs-137

< 0.009

< 0.013

< 0.012

< 0.010

< 0.005 Ba-14(T

< 0.019

< 0.022

< 0.M4

< 0.027

< 0.017 La-140'

<0.0M

< 0.011

< 0.008

< 0.006

< 0.002 Ce-144

< 0.084

< 0.087

< 0.070

< 0.058

< 0.036 Date Collected 05-24-95 06-07 95 06-21-95 07-05-95 07-19-95 Be-7 2.441 0.09 1.401 0.07 1.66 0.06 3.101 0.14 2.65i 0.07 K-40 2.02i 0.12 7.081 0.16 4.891 0.12 537 0.24 1039i 0.17 Mn-54

< 0.005

< 0.006

< 0.004

< 0.008

< 0.006 Fe-59

< 0.009

< 0.003

< 0.008

< 0.019

< 0.012 Co-58

< 0.003

< 0.0M

<0.003

< 0.009

< 0.003 Co40

< 0.007

< 0.007

< 0.007

< 0.010

< 0.009 Zn45

< 0.009

< 0.016

< 0.018

< 0.019

< 0.019 Nb-95

< 0.006

< 0.005

< 0.005

< 0.010

<0.0%

Zr-95

< 0.012

< 0.014

< 0.008

< 0.011

< 0.013 1-131

< 0.008

< 0.006

< 0.006

< 0.008

< 0.006 Cs-134

< 0.006

< 0.008

< 0.005

< 0.010

< 0.006 Cs-137

<0.0%

< 0.006

< 0.006

< 0.010

< 0.006 Ba-14(f

< 0.009

< 0.012

< 0.019

< 0.026

< 0.017 La-14(f

< 0.003

< 0.003

< 0.002

< 0.007

< 0.004 Ce-144

< 0.052

< 0.022

< 0.068

< 0.055

< 0.043 d LLD at time of counting.

E-35

TABLE E-25 (Cont'd)

Date Collected 08-02-95 0416-95 0 & 30-95 09-13-95 09-27-95 Be-7 0.60i 0.08 0.281 0.06

0. % i 0.11 132i0.13 2.981 0.15 K-40 8.00t 0.02 6.101 0.20 9.49i 0.30 7.50i 031 11.791 031 Mn-54

< 0.006

< 0.007

< 0.009

< 0.013

< 0.009 Fe-59

< 0.015

< 0.014

< 0.021

< 0.022

< 0.018 Co-58

< 0.007

< 0.006

< 0.010

< 0.012

< 0.009 Co-60

< 0.010

< 0.009

< 0.015

< 0.018

< 0.010 Zn-65

< 0.009

< 0.016

< 0.027

< 0.029

< 0.012 Nb-95

< 0.008

< 0.005

< 0.008

< 0.013

< 0.011 Zr-95

< 0.017

< 0.014

< 0.018

< 0.016

< 0.018 1-131

< 0.006

< 0.008

< 0.006

< 0.016

< 0.013 Cs-134

< 0.009

< 0.007

< 0.012

< 0.013

< 0.011 Cs-137

< 0.007

< 0.007

< 0.007

< 0.011

< 0.010 Ba-14(f

< 0.021

< 0.021

< 0.029

< 0.021

< 0.032 La-14(f

< 0.005

< 0.006

< 0.004

< 0.005

< 0.007 Cc-144

< 0.067

< 0.022

< 0.052

< 0.085

< 0.039 Date Collected 10-11-95 10-25-95 11-29-95 12-27-95 Be-7 2.621 0.18 4301 0.12 11.57i 039 NS6 K-40 7.451 031 7.65i 0.21 5.051 0.42 Mn-54

< 0.015

< 0.007

< 0.017 Fe-59

< 0.020

< 0.017

< 0.030 Co-58

< 0.008

< 0.007

< 0.017 Co40

< 0.017

< 0.009

< 0.025 Zn-65

< 0.032

< 0.027

< 0.072 Nb-95

< 0.012

< 0.007

< 0.028 Zr-95

< 0.019

< 0.010

< 0.028 I-131

< 0.020

< 0.011

< 0.049 Cs-134

< 0.015

< 0.008

< 0.028 Cs-137

< 0.016

< 0.007 0.069 i 0.023 Ba-140a

< 0.030

< 0.023

<0.073 La-140a

< 0.008

< 0.005

< 0.021 Cc-144

< 0.094

< 0.052

< 0.16 dLLD at time of counting.

b NS = No sample; sample not available.

E 36

TABLE E-26 GRASS ACTIVITY - CL-Il6 (DCi/o wet)

Date Collected 01-25-95 02-22-95 03-29-95 04-26-95 05-10-95 Be-7 11.441 0.25 11.791 034 12.20i 0.21 1.66i 0.13 1.24i 0. %

K-40 2.27i 0.20 3.001 030 1.82i o.15 7.41i 0.24 4391 0.12 Mn-54

< 0.009

< 0.015

< 0.007

< 0.009

< 0.005 Fe-59

< 0.022

< 0.018

< 0.015

<0.019

< 0.010 Co-58 e 0.011

< 0.014

< 0.008

< 0.009

<0.0M Co-60

<0.013

< 0.019

< 0.008

< 0.010

< 0.006 Zn-65

<0.032

< 0.052

< 0.028

< 0.026

< 0.014 Nb-95

< 0.012

< 0.009

< 0.011

<0.0M

< 0.004 Zr-95

< 0.024

< 0.027

< 0.011

< 0.012

< 0.009 l-131

< 0.015

< 0.020

< 0.014

< 0.011

< 0.003 Cs-134

< 0.011

< 0.016

< 0.011

< 0.011

< 0.006 Cs-137

< 0.010

<0.020

< 0.008

< 0.010

< 0.004 Ba-14(f

< 0.038

< 0.062

< 0.038

< 0.028

< 0.014 La-140'

< 0.008

< 0.007

< 0.005

< 0.004

< 0.002 Ce-144

< 0.11

< 0.11

< 0.057

< 0.065

< 0.027 Date Collected 05-24-95 06-07 95 06-21-95 07-05-95 07-19-95 Be-7 0.991 0.09 1.501 0.08 1.601 0.08 2.981 0.10 3.93t 0.17 K-40 4.15 0.19 6.871 0.21 5.291 0.16 6.911 0.19 7.911 030 Mn-54

< 0.007

< 0.007

< 0.005

< 0.007

< 0.009 Fe-59

< 0.012

< 0.009

< 0.013

< 0.012

< 0.017 Co-58

< 0.003

< 0.006

< 0.006

< 0.004

< 0.005 Co-60

< 0.008

< 0.007

< 0.009

< 0.009

< 0.017

?n-65

< 0.008

< 0.022

< 0.009

< 0.022

< 0.023 i o-95

< 0.006

< 0.007

< 0.005

< 0.006

< 0.009 Zr-95

< 0.008

< 0.014

< 0.007

< 0.009

< 0.015 1-131

< 0.006

< 0.008

< 0.008

< 0.008

< 0.007 Cs-134

<0.008

< 0.009

< 9.005

< 0.007

< 0.012 Cs-137

< 0.008

< 0.007

< 9.004

< 0.007

< 0.009 Ba-140'

< 0.024

<0.023

<0.020

< 0.019

< 0.037 La-14(f

< 0.004

<0.0M

< 0.006

< 0.003

< 0.005 Ce-144

<0.034

< 0.035

< 0.037

< 0.071

< 0.055 d LLD at time of counting.

E-37

TABLE E-26 (Cont'd)

Date Collected 08-02-95 08-16-95 08-30-95 09-13-95 09-27-95 Be-7 3.56i 0.15 0.60i 0.06 1.141 0.08 1.691 0.14 2.491 0.15 K-40 3.981 0.21 9.811 0.20 92710.20 7.981 0.28 6.901 031 Mn-54

< 0.008

< 0.006

< 0.003

< 0.010

< 0.006 Fe-59

< 0.013

< 0.008

< 0.010

< 0.012

< 0.014 Co-58

< 0.010

< 0.006

< 0.005

< 0.011

< 0.010 Co40

< 0.011

< 0.009

< 0.004

< 0.012

< 0.017 Zn-65

< 0.017

< 0.009

< 0.023

< 0.012

< 0.025 Nb-95

< 0.006

< 0.006

<0.0%

< 0.009

< 0.012 Zr-95

< 0.012

< 0.012

< 0.008

< 0.016

< 0.012 1-131

< 0.012

< 0.007

< 0.005

< 0.014

< 0.017 Cs-134

< 0.011

< 0.006

< 0.008

< 0.007

< 0.013 Cs-137

< 0.011

< 0.007

< 0.006

< 0.010

< 0.008 Ba-14(f

< 0.038

< 0.012

< 0.024

< 0.032

<0.021 La-14(f

< 0.006

< 0.002

< 0.002

< 0.007

< 0.009 Cc-144

< 0.075

< 0.022

< 0.036

< 0.087

< 0.041 Date Collected 10-11-95 10-25-95 11-29-95 12-27-95 Be-7 3.131 0.17 2.091 0.12 7.46 0.27 NSb K-40 6331 0.31 5.47i 0.23 7.43 0.38 Mn-54

< 0.009

< 0.008 ~

< 0.015 Fe-59

< 0.028

< 0.009

< 0.031 Co-58

< 0.011

< 0.006

< 0.008 Co-60

< 0.010

< 0.007

< 0.017 Zn-65

< 0.029

< 0.024

< 0.019 Nb-95

< 0.013

< 0.008

< 0.010 Zr-95

< 0.021

< 0.013

< 0.022 I-131

< 0.012

< 0.012

< 0.027 Cs-134

< 0.014

< 0.010

< 0.015 Cs-137

< 0.014

< 0.007

< 0.018 Ba-14(f

< 0.045

< 0.016

< 0.055 La-14(f

< 0.005

< 0.006

< 0.007 Ce-144

< 0.082

< 0.043

< 0.098 d LLD at time of counting.

b NS = No sample; sarnple not available.

E-38

TABLE E-27 GREEN LEAFY VEGETABLE ACTIVITY - CL-114 (control)(DCi/1)

SampleType Chard Lettuce Cabbage Chard lettuce Cabbage Date Collected 06-28-95 06-28-95 06-28-95 07-26-95 07-26-95 07-26-95 Gross Beta 6.51i 0.21 3.491 0.14 4.211 0.14 5.08i 0.18 3.40i 0.12 2.15* 0.06 Be-7 0.221 0.09 0.25i 0.07

< 0.064 0.191 0.04 0.1 9i 0.06

<0.080 K-40 6.40i 0.26 3.491 0.16 430i0.20 6.19i 0.15 3.21i 0.15 2.61i0.14 Mn-54

< 0.012

<0.0%

< 0.005

< 0.003

< 0.005

<0.007 Fe-59

< 0.025

< 0.008

< 0.018

< 0.005

< 0.015

<0.020 Co-58

< 0.009

< 0.003

< 0.006

< 0.005

< 0.004

<0.009 Co-60

< 0.016

< 0.007

< 0.007

< 0.007

< 0.004

<0.0%

Zn-65

< 0.024

< 0.023

< 0.017

< 0.009

< 0.013

<0.007 Nb-95

< 0.012

< 0.008

< 0.005

< 0.006

< 0.004

<0.010 Zr-95

< 0.019

< 0.008

< 0.019

< 0.005

< 0.007

<0.010 1-131

< 0.008

< 0.007

< 0.005

< 0.008

< 0.008

<0.013 Cs-134

< 0.007

< 0.007

< 0.008

< 0.005

< 0.005

<0.007 Cs-137

< 0.013

< 0.008

< 0.007

<0.0%

< 0.006

<0.007 Ba-140'

< 0.036

< 0.019

< 0.028

< 0.009

< 0.019

<0.019 La-140'

< 0.005

< 0.004

< 0.005

< 0.003

< 0.004

<0.003 Ce-144

< 0.071

< 0.019

< 0.029

< 0.049

< 0.%2

<0.044 Sample Tyne Chard Cabbace Collards Chard Cabbace Kale Date Collected 08-30-95 08-30-95 08-30-95 09-27-95 09-27-95 09-27-95 Gross Beta 6.981 0.24 2.781 0.08 4.13i 0.12 3.891 0.13 2.251 0.08 3.9210.15 Be-7 0.101 0.03 0.091 0.03 0.199 0.03 0.092 0.03 0.071 0.03 0.17i 0.05 K-40 4.03 0.10 2.441 0.07 4.631 0.08 4.36i 0.12 2.191 0.09 3.601 0.13 Mn-54

< 0.002

< 0.003

< 0.003

< 0.003

<0.003 c0.005 Fe-59

< 0.008

< 0.007

< 0.007

< 0.010

<0.006

<0.012 Co-58

< 0.002

< 0.003

< 0.003

<0.0N

<0.003

<0.004 Co-60

< 0.006

< 0.003

< 0.005

< 0.005

<0.005

<0.005 Zn-65

< 0.009

< 0.009

< 0.007

< 0.005

<0.008

<0.010 Nb-95

< 0.002

< 0.003

< 0.003

< 0.004

<0.004

<0.005 Zr-95

< 0.006

< 0.009

< 0.005

< 0.008

<0.005

<0.010 1-131

< 0.003

< 0.004

< 0.003

< 0.007

<0.005

<0.004 Cs-134

< 0.004

< 0.003

< 0.004

< 0.005

<0.002

<0.0%

Cs-137

< 0.002

< 0.004

< 0.004

< 0.004

<0.004

<0.006 Ba-140'

< 0.012

< 0.011

< 0.009

< 0.012

<0.009

<0.011 La-140'

< 0.002

< 0.003

< 0.001

< 0.002

<0.003

<0.0N Ce-144

< 0.042

< 0.031

< 0.020

< 0.018

<0.026

<0.033 d LLD at time of counting.

E-39

- - - - - ~ - - - - - - - - - - - - - - - - - - - - - - - - - ~ - ~ - ~ -

_ TABLE E-28 GREEN LEAFY VEGETABLE ACTIVITY - CL-115 (DCi/l)

Sample Type NS Lettuce Cabbace Kale Cabbane 6

Date Collected 06-28-95 07-26-95 07-26-95 07-26-95 08-30-95 Gross Beta 3.391 0.13 3.601 0.13 5.28i 0.18 2.99i 0.10 Be-7 0.42i 0.08

< 0.098 0.1110.M

<0.044 K-40 3.76i 0.17 2.591 0.18 4381 0.13 3.21i 0.13 Mn-54

< 0.006

< 0.008

< 0.005

< 0.005 fe-59

< 0.016

< 0.014

< 0.008

< 0.011 Co-58

< 0.007

< 0.011

< 0.005

< 0.006 Co-60

< 0.010

< 0.008

< 0.006

< 0.008 Zn-65

< 0.025

< 0.010

< 0.008

< 0.008 Nb-95

< 0.007

< 0.015

< 0.003

< 0.005 Zr-95

< 0.008

< 0.022

< 0.003

< 0.007 I-131

< 0.007

< 0.017

< 0.005

<0.0M Cs-134

< 0.008

< 0.012

< 0.006

< 0.006 Cs-137

< 0.008

< 0.011

< 0.003

< 0.005 Ba-140'

< 0.030

< 0.029

< 0.006

< 0.017 La-14(f

<0.008

< 0.005

< 0.003

< 0.002 C-144

< 0.046

< 0.17

< 0.014

< 0.044 Sample Type Kale Collards Cabbace Collards Kale Date Collected 08-30-95 08-30-95 09-27-95 09-27-95 09-27-95 Gross Beta 3.66i 0.14 4.011 0.15 3.061 0.10 4.651 0.19 5.66i 0.20 Be-7 0.10t 0.05 0.0910.M

< 0.045 0.36i 0.06 0.21i 0.05 K-40 4.001 0.19 3.851 0.16 3.181 0.15 4.391 0.20 4.60i 0.14 Mn-54

< 0.008

< 0.005

< 0.005

< 0.007

< 0.005 Fe-59

< 0.016

< 0.014

< 0.012

< 0.018

< 0.006 Co-58

< 0.003

< 0.009

< 0.002

< 0.006

< 0.003 Co-60

< 0.010

< 0.009

< 0.007

< 0.010

< 0.007 Zn-65

< 0.018

< 0.007

< 0.012

< 0.012

< 0.009 Nb-95

< 0.007

< 0.003

< 0.005

< 0.003

<0.013 Zr-95

< 0.019

< 0.012

< 0.012

< 0.017

< 0.004 1-131

< 0.010

< 0.007

< 0.009

< 0.011

< 0.008 Cs-134

< 0.005

< 0.006

< 0.006

< 0.009

< 0.006 Cs-137

< 0.008

< 0.006

< 0.005

< 0.008

< 0.006 Ba-140'

< 0.024

< 0.017

< 0.020

< 0.027

< 0.020 La-14(f

< 0.003

< 0.005

< 0.003

<0.003

< 0.004 Ce-144

< 0.044

< 0.036

< 0.023

< 0.060

< 0.045 d LLD at time of counting.

bNS=no sample; sample unavailable E-40

TABLE E-29 GREEN LEAFY VEGETABLE ACTIVITY - CL-117 (DCi/l)

SampleType Cabbace Kale Collards Collards Cabbage Lettuce Date Collected 06-28-95

% 95 06-28-95 07-26-95 07-26-95 07-26-95 Gross Beta 43910.14 4.841 0.17 3.801 0.14 8.191 0.23 234i 0.06 5.65i 0.19 Be-7

< 0.045

< 0.052 0.10i 0.04 0.10i 0.05

< 0.049 0.28i 0.09 K-40 4.181 0.13 4331 0.19 4.571 0.14 5.87i 0.17 2.79i 0.09 5.87i 0.23 Mn-54

< 0.004

< 0.004

< 0.006

< 0.005

< 0.005

< 0.008 Fe-59

< 0.011

< 0.016

< 0.006

< 0.013

< 0.013

< 0.016 Co-58

< 0.005

< 0.005

< 0.004

< 0.006

< 0.005

< 0.009 Co-60

< 0.008

< 0.011

< 0.009

< 0.007

< 0.007

< 0.009 Zn-65

< 0.018

< 0.017

<0.014

< 0.008

< 0.009

< 0.021 Nb-95

< 0.005

< 0.007 s 0.007

< 0.005

< 0.006

< 0.009 Zr-95

< 0.013

< 0.007

< 0.007

< 0.013

< 0.006

< 0.011 1-131

< 0.005

< 0.004

< 0.007

< 0.006

< 0.007

< 0.007 Cs-134

< 0.011

< 0.004

< 0.006

< 0.007

< 0.004

< 0.005 Cs-137

< 0.005

< 0.007

< 0.006

< 0.006

< 0.006

< 0.008 Ba-14(f

< 0.010

< 0.020

< 0.020

< 0.019

< 0.009

< 0.037 La-14(f

< 0.004

< 0.003

< 0.005

< 0.003

< 0.003

< 0.005 Cc-144

< 0.040

< 0.024

< 0.024

< 0.033

< 0.036

< 0.069

~

Sample Type Cabbace Kale Collards Kale Cabbage Collards Date Collected 08-30-95 08-30-95 08-30-95 09-27-95 09-27-95 09-27-95 Gross Beta 2.57* 0.08 3.161 0.13 4.291 0.15 4.79i 0.17 234i 0.07 3.37i 0.14 Be-7

<0.042 0.181 0.01 0.181 0.03 0.171 0.06

<0.051 0.171 0.06 K-40 2.791 0.13 436i 0.14 3.831 0.10 4.011 0.19 1.901 0.11 336i 0.15 Mn-54

< 0.003

< 0.005

< 0.004

< 0.007

< 0.005

< 0.006 Fe-59

< 0.013

< 0.011

< 0.004

< 0.016

< 0.009

< 0.012 Co-58

< 0.006

< 0.004

< 0.004

< 0.007

< 0.005

< 0.007 Co-60

< 0.007

< 0.007

< 0.006

< 0.009

< 0.006

< 0.006 Zn-65

< 0.008

< 0.016

< 0.009

< 0.011

< 0.006

< 0.011 Nb-95

< 0.004

< 0.003

< 0.004

< 0.003

< 0.003

< 0.004 Zr-95

< 0.012

< 0.009

< 0.008

< 0.014

< 0.010

< 0.015 1-131

< 0.008

< 0.004

< 0.005

< 0.004

< 0.008

< 0.006 Cs-134

< 0.006

< 0.005

< 0.005

< 0.008

< 0.005

< 0.007 Cs-137

< 0.006

< 0.005

< 0.005

< 0.006

< 0.005

< 0.004 Ba-14(f

< 0.015

< 0.009

< 0.013

< 0.015

< 0.016

< 0.011 La-14(f

< 0.005

< 0.003

< 0.001

< 0.002

< 0.005

< 0.005 Ce-144

< 0.041

< 0.038

<0.015

< 0.035

< 0.049

< 0.048 LLD at time of counting.

E-41

TABLE E-30 GREEN LEAFY VEGETABLE ACTIVITY - CL-118 (DCi/l)

Sample Type Chard Kate Collards Chard Lettuce Cabbace Date Collected 06-28-95 06-28-95 06-28-95 07-26-95 07-26-95 07-26-95 Cross Beta 7.031 0.21 5.53i 0.19 4.521 0.20 10.131030 4.641 0.14 2.53i 0.09 Be-7 0.281 0.08 0.131 0.05 0.141 0.06 0331 0.07 031 0.06

< 0.15 K-40 6.65i 0.25 5.Mi 0.15 4.17i 0.14 9.141 0.24 5.571 0.15 1.48i 0.26 Mn-54

< 0.009

< 0.005

< 0.006

< 0.008

< 0.005

< 0.011 Fe-59

< 0.018

< 0.009

< 0.006

< 0.014

< 0.010

< 0.020 Co-58

< 0.009

< 0.005

< 0.005

< 0.006

< 0.002

<. 0.015 Co-60

< 0.015

< 0.008

< 0.008

< 0.009

< 0.007

< 0.013 Zn-65

< 0.020

< 0.019

< 0.014

< 0.015

< 0.019

< 0.026 Nb-95

< 0.005

< 0.005

< 0.007

< 0.008

< 0.006

< 0.014 Zr-95

< 0.017

< 0.010

< 0.016

<0.008

< 0.019

< 0.015 1-131

< 0.009

< 0.005

< 0.009

< 0.005

< 0.007

< 0.028 Cs-134

< 0.010

< 0.006

< 0.005

< 0.004

< 0.006

< 0.015 Cs-137

< 0.008

<0.0%

< 0.007

< 0.007

< 0.006

< 0.009 Ba-14(f

< 0.035

< 0.010

< 0.023

< 0.025

< 0.018

< 0.029 La-14(f

< 0.008

< 0.002

< 0.003

< 0.002

< 0.003

< 0.019 Ce-144

< 0.07

< 0.035

< 0.053

< 0.073

< 0.076

< 0.15 Sample Type Chard Cabbace Kale Kale Cabbace Collards Date Collected 08-30-95 08-30-95 08-30-95 09-27-95 09-27-95 09-27-95 Gross Beta 7.751 0.22 2.63i 0.11 5.50 0.16 4.441 0.17 2.71 0.09 5.45i 0.21 Be-7

<0.054 0.111 0.05 0.111 0.04 0.151 0.08

< 0.053 0.17i 0.05 K-40 5.47i 0.16 3.271 0.15 5.27 0.13 4.261 0.22 2.47i 0.13 5.451 0.19 Mn-54

< 0.004

<0.0M

< 0.005

< 0.007

< 0.006

<0.0M Fe-59

< 0.013

< 0.007

< 0.009

< 0.010

< 0.014

< 0.015 Co-58

< 0.006

<0.0M

< 0.003

< 0.011

<0.0M

< 0.007 Co-60

< 0.005

< 0.008

< 0.006

< 0.015

< 0.007

< 0.009 Zn-65

< 0.013

< 0.009

< 0.015

< 0.029

< 0.006

< 0.016 Nb-95

< 0.005

< 0.005

< 0.003

< 0.012

< 0.006

< 0.008 Zr-95

< 0.011

< 0.007

< 0.006

< 0.014

< 0.011

< 0.008 1-131

< 0.007

< 0.005

< 0.008

< 0.014

< 0.008

< 0.012 Cs-134

< 0.007

< 0.006

< 0.005

< 0.006

< 0.007

< 0.006 Cs-137

< 0.005

< 0.006

< 0.005

< 0.012

< 0.006

< 0.007 Ba-14(f

< 0.017

< 0.020

< 0.020

< 0.026

< 0.012

< 0.018 La-14(f

< 0.003

< 0.005

< 0.002

< 0.007

< 0.005

< 0.002 Ce-144

< 0.038

< 0.035

<0.036

<0.082

< 0.043

< 0.042 dLLD at time of counting.

E-42

TABLE E-31 MEAT ACTIVITY - CL-106 (oCi/o wet)

Date Collected 1/20/95

'i/20/95 1/20/95 Type Bovine Thyroid Bovine Liver Beef (Edible Portions)

Be-7

< 0.43

< 0.064

< 0.% 7 K-40

<1.40 2.53i 0.17 2.361 0.13 Mn-54

< 0.042

< 0.007

< 0.004 Fe-59

< 0.089

< 0.016

< 0.007 Co-58

< 0.063

< 0.007

< 0.005 Co-60

< 0.(M6

< 0.009

< 0.005 Zn-65

< 0.15

< 0.008

< 0.010 Nb-95

< 0.042

< 0.012

< 0.007 Zr-95

< 0.056

< 0.020

< 0.009 Ru-103

< 0.042

< 0.010

< 0.009 Ru-106

< 0.320

< 0.067

< 0,055 I-131

< 0.18

< 0.029

< 0.040 Cs-134

< 0.048

<0.008

< 0.006 Cs-137

< 0.038

< 0.007

< 0.004 Ba-140'

< 0.14

< 0.018

< 0.016 La-140'

< 0.019

< 0.006

< 0.004 Ce-141

< 0.082

< 0.018

< 0.013 Ce-144

< 0.18

< 0.048

< 0.031 a LLD at time or counting.

E-43

5 TABLE E-32 FISH ACTIVITY - CL-19 (DCi/o wet)

Date Collected M-06-95 04-06-95 M-06-95 04-06-95 Type B1ue Gill Crappie Carp Largemouth Bass Be-7

< 0.065

< 0.076

< 0.059

< 0.073 K-40 2.641 0.15 2.941 0.18 2.87i 0.02 3.25i 0.18 Mn-54

< 0.004

< 0.007

< 0.005

< 0.007 Fe-59

< 0.010

< 0.015

< 0.016

< 0.010 Co-58

< 0.007

<0.0M

< 0.007

< 0.005 Co-60

< 0.006

< 0.009

< 0.007

< 0.007 Zn-65

< 0.014

< 0.013

< 0.014

< 0.01 Nb-95

< 0.007

< 0.010

< 0.008

< 0.008 Zr-95

< 0.009

< 0.011

< 0.016

< 0.019 Ru-103

< 0.006

< 0.009

< 0.008

< 0.005 Ru-106

< 0.037

< 0.063

< 0.032

< 0.036 Cs-134

< 0.007

< 0.008

< 0.006

< 0.005 Cs-137

< 0.005

< 0.007

< 0.003

< 0.008 Ba-140'

< 0.020

< 0.013

< 0.020

< 0.027 La-14(f

<0.0M

< 0.006

< 0.005

< 0.007 Ce-141

<0.0%

< 0.016

< 0.011

< 0.013 Ce-144

< 0.036

< 0.048

<0.021

< 0.M6 Date Collected 10-16-95 10-16-95 10-16 95 10-16-45 Type Blue Giu Crappie Carp Largemouth Bass Be-7

< 0.13

< 0.077

< 0.037

< 0.N1 K-40 2.16i 0.21 3.211 0.18 2.691 0.10 3.071 0.15 Mn-54

< 0.012

< 0.008

< 0.003

< 0.006 Fe-59

< 0.024

< 0.027

< 0.013

< 0.011 Co-58

<0.012 c 0.006

< 0.003

< 0.005 Co-60

< 0.011

< 0.009

< 0.006

< 0.007 Zn-65

< 0.015

< 0.021

< 0.009

<0.013 Nb-95

< 0.016

< 0.013

< 0.007

< 0.005 Zr-95

< 0.027

< 0.015

< 0.007

< 0.008 Ru-103

< 0.016

< 0.005

< 0.008

<0.003 Ru-106

< 0.064

< 0.030

< 0.043

< 0.052 Cs-134

< 0.012

< 0.006

< 0.003

< 0.007 Cs-137

< 0.012

< 0.006

< 0.005

< 0.006 Ba-140'

< 0.019

< 0.011

< 0.013

< 0.018 La-14(f

< 0.005

< 0.006

< 0.003

< 0.002 Cc-141

< 0.030

< 0.018

< 0.009

< 0.009 Ce-144

< 0.058

< 0.042

< 0.036

< 0.022 a LLD at time of counting.

E-44

TABLE E-33 FISH ACTIVITY - CL-105 (control)(DCi/o wet)

Date Collected M-07-95 04-07-95 04-07-95 04-07-95 Type Largemouth Bass Carp Crappie Blue Gill Be-7

< 0.033

< 0.048

< 0.055

< 0.054 K-40 2.97i 0.15 3.261 0.14 3.10i 0.16 2.231 0.14 Mn-54

< 0.005

< 0.005

< 0.007

< 0.005 Fe-59

< 0.009

< 0.006

< 0.016

< 0.014 Co-58

< 0.007

< 0.004

< 0.005

< 0.007 Co-60

< 0.008

< 0.006

< 0.007

< 0.006 Zn-65

< 0.007

< 0.019

< 0.011

< 0.01 Nb-95

< 0.006

< 0.006

< 0.008

< 0.009 Zr-95

< 0.014

< 0.008

< 0.017

< 0.012 Ru-103

< 0.008

< 0.005

< 0.007

< 0.007 Ru-1%

< 0.045

< 0.028

< 0.058

< 0.048 Cs-134

< 0.007

< 0.005

< 0.006

< 0.005 Cs-137

<0.0M

<0.0%

< 0.007

< 0.007 Ba-140'

< 0.015

< 0.011

< 0.023

< 0.016 La-140"

< 0.003

< 0.002

< 0.005

< 0.005 Ce-141

< 0.008

< 0.007

< 0.009

< 0.011 Ce-144

< 0.041

< 0.038

< 0.M 2

< 0.025

~

Date Collected 10-17 95 10-17-95 10-17-95 10-17 Type Largemouth Bass Carp Crappie Blue Gill Be-7

< 0.076

< 0.10

< 0.094

< 0.088 K-40 2.921 0.15 2.72 0.17 2.701 0.21 2.16i 0.14 Mn-54

< 0.007

< 0.009

< 0.009

< 0.005 Fe-59

< 0.019

< 0.012

< 0.036

< 0.021 Co-58

< 0.006

< 0.008

< 0.012

< 0.007 Co-60

< 0.008

< 0.009

< 0.006

< 0.008 Zn-65

< 0.019

< 0.016

< 0.013

< 0.014 Nb-95

< 0.011

< 0.013

< 0.008

< 0.012 Zr-95

< 0.009

< 0.019

< 0.028

< 0.018 Ru-103

< 0.011

< 0.010

< 0.014

< 0.009 Ru-106

< 0.038

< 0.037

< 0.078

< 0.042 Cs-134

< 0.007

< 0.009

< 0.010

< 0.004 Cs-137

< 0.007

< 0.008

< 0.010

<0.0M Ba-140'

< 0.019

< 0.025

< 0.036

< 0.022 La-14(f

< 0.003

<0.0M

< 0.005

< 0.004 Ce-141

< 0.015

< 0.021

< 0.014

< 0.021 Ce-144

< 0.028

< 0.039

< 0.056

< 0.043 a LLD at time of counting.

E-45

TABLE E-34 AOUATIC VEGETATION ACTIVITY - (DCi/o wet) location CL-7B CL-7C CL-9 CL-10 Date Collected 04-06-95 04-06-95 N-06-95 04-06-95 Be-7 0.901 0.26

< 0.44 0.551 0.25 0.661 0.30 K-40 1.671 0.38

<1.02 0.801 0.46 2.521 0.55 Mn-54

< 0.021

< 0.045

< 0.020

< 0.031 Fe-59

< 0.041

< 0.070

< 0.063

< 0.033 Co-58

< 0.012

< 0.029

< 0.023

< 0.026 Co-60

< 0,028

< 0.048

< 0.029

< 0.039 Zn-65

< 0.079

< 0.065

< 0.089

< 0.11 Nb-95

< 0.028

< 0.040

< 0.029

< 0.039 Zr-95

< 0.026

< 0.090

< 0.033

< 0.063 Cs-134

< 0.027

< 0.050

< 0.033

< 0.029 Cs-137 0.0361 0.021

< 0.051

< 0.029 0.0331 0.026 Ba-140'

< 0.076

< 0.089

< 0.075

< 0.084 La-14(f

< 0.012

< 0.M2

< 0.010

< 0.020 Ce-144

< 0.12

< 0.15

< 0.078

< 0.16 Location CL-19 CL-105 Date Collected 04-06-95 04-06-95 De-7 0.521 0.16

< 0.24 K-40 1.21i 0.28 1.57i 0.29 Mn-54

< 0.017

< 0.016 Fe-59

< 0.013

< 0.037 Co-58

< 0.017

< 0.022 Co-60

< 0.020

< 0.031 Zn-65

< 0.027

< 0.037 Nb-95

< 0.023

< 0.013 Zr-95

< 0.019

< 0.032 Cs-134

< 0.017

< 0.026 Cs-137

< 0.024 0.030i 0.014 Ba-14(f

< 0.063

< 0.079 La-14(f

< 0.008

< 0.024 Ce-144

< 0.076

< 0.088 a LLD at time of counting.

E-16

TABLE E-34 (Cont'd)

Location CL-7B CL-7C CL-9 CL-10 Date Collected 06-15-95 06-15-95 06-15-95 06-15-95 l

Be-7 0.84i 0.27 1.21t 0.43 2.27i 0.63

< 0.69 l

K-40 1.981 0.36

< 0.85 356i 0.53 1.881 0.63 Mn-54

< 0.022

< 0.028

< 0.027

< 0.044 Fe-59

< 0.055

< 0.049

< 0.084

< 0.16 Co-58

< 0.029

< 0.037

< 0.041 -

< 0.040 Co-60

< 0.017

< 0.030

< 0.032

< 0.033 Zn45

< 0.031

< 0.11

< 0.11

< 0.086 Nb-95

< 0.034

< 0.079

< 0.051

< 0.058 Zr-95

< 0.064

< 0.062

< 0.088

< 0.065 Cs-134

< 0.028

< 0.037

< 0.036

< 0.029 Cs-137

< 0.028

<0.031 0.0691 0.037

<0.M5 i

Ba-140'

< 0.051

< 0.10

< 0.12

< 0.074 La-140'

< 0.014

< 0.015

< 0.032

< 0.028 Co-144

< 0.070

< 0.21

< 0.19

< 0.13 Location CL-19 l

Date Collected 06-15-95 Bea7 1.48i 0.44 K-40 2.371 036 Mn-54

< 0.023 Fe-59

< 0.10 Co-58

< 0.030 Co-60

< 0.029 Zn-65

< 0.078 Nb-95

< 0.M1 Zr-95

< 0.093 '

Cs-134

< 0.029 Cs-137 0.052i 0.023 B-140'

< 0.092 La-140'

<0.022 Ce-144

< 0.16 a LLD at time of counting.

l E-17

TABLE E-34 (Cont'd)

Location CL-7B CL-7C CL-9 CL-10 Date Collected 08-28-95 08-28-95 0 & 28-95 08-28-95 Be-7 0.831 025 0.431 0.16 1.271 024 054i 0.32 K-40 2.791 0.46 0.68i 0.35 3.121 035 2.081 0.41 Mn-54

< 0.030

< 0.020

< 0.020

< 0.026 Fe-59

< 0.061

< 0.039

< 0.026

< 0.04 Co-58

< 0.023

< 0.019

< 0.011

< 0.029 Co-60

< 0.031

< 0.021

< 0.023

< 0.026 Zn-65

< 0.10

< 0.034

< 0.%7

< 0.11 Nb-95

< 0.041

< 0.025

< 0.021

< 0.039 Zr-95

< 0.034

< 0D17

< 0.042

< 0.080 Cs-134

< 0.030

< 0.023

< 0.021

< 0.033 Cs-137

< 0.030

< 0.022 0.%0i0.018 0.0531 0.025 Ba-14(f

< 0.10

< 0.052

< 0.069

< 0.10 La-14(f

< 0.017

< 0.014

< 0.013

< 0.0.'<.2 Ce-144

< 0.18

< 0.065

< 0.079

< 0.I' Location CL-19 Date Cc!!ected 08-28-95 Be-7 2.21i 0.32 K-40 5.46i 0.55 Mn-54

< 0.030 Fe < 0.06 Co-58

<0.030 Co-60

< 0.028 Zn-65

< 0.089 Nb-95

< 0.025 Zr-95

< 0.089 Cs-134

< 0.027 Cs-137 0.0881 0.026 Ba-14(f

< 0.084 La-14(f

< 0.022 Ce-144

< 0.13 a LLD at time of counting.

E-48

TABLE E-34 (Cont'd)

Location CL-7B CL-7C CL-9 CL-10 Date Collected 10-16-95 1(L16-95 10-16-95 10-16-95 Be-7

< 0.26

< 0.21

< 0.28

< 0.29 K-40 0.601 0.28 1.46 031 1.651 034 2.98i 0.40 Mn-54

< 0.024

< 0.015

< 0.026

< 0.011 Fe-59

< 0.M8

<0.0M

< 0.047

< 0.05 Co-58

< 0.014

< 0.020

< 0.031

< 0.028 Co-60

< 0.029

< 0.021

< 0.026

< 0.025 Zn-65

< 0.024b

< 0.024

< 0.073

< 0.08 Nb-95

< 0.032

< 0.027

< 0.040

< 0.M7 Zr295

< 0.048

< 0.040

< 0.078

< 0.028 Cs-134

< 0.026

< 0.020

< 0.030

< 0.026 Cs-137

< 0.022

< 0.021

< 0.021

< 0.030 Ba-14(f

< 0.081

< 0.059

< 0.093

< 0.070 La-14(f

< 0.011

< 0.017

< 0.007

< 0.020 Ce-144

< 0.12

< 0.M2

< 0.092

< 0.12 Location CL-19 CL-105 Date Colhded 10-16-95 10-16-95 Be-7 1.191 0.27 0.39: 0.23 K-40 1.74i 037 1.68: 0.40 Mn-54

< 0.020

< 0.025 Fe-59

< 0.04

< 0.07 Co-58

< 0.017

< 0.027 Co-60

< 0.025

< 0.028 Zn-65

< 0.025

< 0.079 Nb-95

< 0.030

< 0.017 Zr-95

< 0.042

< 0.030 Cs-134

< 0.023

< 0.024 Cs-137

< 0.025

< 0.025 Ba-14(f

< 0.057

< 0.065 La-14(f

< 0.007

< 0.014 Ce-144

< 0.075

< 0.15 a LLD at time of counting.

E-49 l

TABLE E-35 SHORELINE SEDIMENT ACTIVITY - (DCi/c drv) lecation CL-7B CL-7C CL-10 CL-19 Date Collected 04- % -95 0'-06-95 M-06-95 04-06-95 Gross Alpha 2.621 134

< 3.50

< 0.99 1.56.t 1.10 Gross Beta 10.78i 1.40 7.53i 233 6.87f 1.93 8.721 139 Sr-90

<0.011

<0.007

<0.011

<0.008 Be-7

< 0.16

< 0.076

< 0.095

< 0.092 K-40 13.541 0.70 5.841 0.23 730i 0.26 9.081 0.27 Mn-54

< 0.022

< 0.009

< 0.006

< 0.009 Fe-59

< 0.078

< 0.019

< 0.019

< 0.016 Co-58

<0.039

< 0.013

< 0.012

< 0.011 Co40

< 0.026

< 0.009

< 0.009

< 0.010 Zn-65

< 0.098

< 0.029

<0.037

< 0.034 Nb-95

< 0.037

< 0.012

<0.012

< 0.013 Zr-95

< 0.037

< 0.013

< 0.016

< 0.008 Cs-134

< 0.047

< 0.013

< 0.015

< 0.015 Cs-137

< 0.031

< 0.007

<0.0M

< 0.009 Ba-14(f

< 0.060

< 0.030

< 0.018

< 0.024 La-14tf

< 0.027

< 0.004

<0.0M

< 0.003 Ce-144

< 0.19

< 0.057

< 0.046

< 0.058 Ac-228 0.461 0.11 0.12i 0.03 0.13i 0.03 0.2010.M Di-212

< 0.42

< 0.13 0.21t 0.09

< 0.13 Bi-214 0.281 0.05 0.% 51 0.018 0.0881 0.017 0.141 0.02 Pb-212 0.40i 0.05 0.11i 0.01 0.141 0.02 0.18i 0.02 Pb-214 033t 0.07 0.11 i 0.02 0.15i 0.02 0.16i 0.02 Ra-226

< 0.67 0.211 0.12 0.24i 0.12 0.311 0.01 TI-208 0.10i 0.03 0.0321 0.010 0.0511 0.012 0.057i 0.012 a LLD at time of counting.

E-50

TABLE E-35 (Cont'd)

Location CL-88 CL-89 CL-105 Date Collected 04-06-95 04-06-95 04-06-95 Gross Alpha

< 3.20 2.291 1.07

< 0.99 Gross Beta 4.631 2.05 16.45i 2.51 9.981 1.98 Sr-90

<0.009

<0.008

<0.007 Be-7

< 0.20 0.271 0.09

< 0.084 K-40 7341 0.47 14.891 036 10.94i 0.27 Mn-54

< 0.018

< 0.010

< 0.011 Fe-59

< 0.M1

< 0.031

< 0.032 Co-58

< 0.020

< 0.011

< 0.015 Co-60

< 0.025

<0.014

< 0.011 Zn-65

< 0.073

< 0.M9

< 0.033 Nb-95

< 0.028

< 0.022

< 0.012 Zr-95

< 0.064

< 0.015

< 0.018 Cs-134

< 0.031

< 0.022

< 0.014 Cs-137

< 0.021 0.046i 0.013

< 0.011 Ba-14(f

< 0.061

< 0.029

< 0.030 La-14(f

< 0.007

<0.013

< 0.007 Ce-144

< 0.097

< 0.075

< 0.026 Ac-228 0.161 0.08 0.631 0.05 0.1610.M

~

Bi-212

< 0.28 0.631 0.12 0.171 0.09 Bi-214 0.171 0.05 0.41i 0.02 0.101 0.02 Pb-212 0.111 0.03 0.601 0.02 0.151 0.01 Pb-214 0.1210.M 0.491 0.03 0.15t o.M Ra-226

< 0.45 1.141 0.15 03010.14 TI-208 0.160i 0.080 0.201 0.02 0.060i 0.014 a LLD at time of counting.

E-51

TABLE E-35 (Cont'd)

Location CL-7B CL-7C CL-10 CL-19 Date Collected 10-16-95 10-16-95 10-16 95 10-16-95 Gross Alpha

<5.99

< 5.b

< 3.09

<5.93 Gross Beta 10.97i 330 8.25i 3.27 8.08i 2.17 9.61i 3.25 Sr-90

<0.012

<0.008

<0.009

<0.011 Be-7 0.181 0.10

< 0.064

< 0.%5

< 0.084 K-40 12.431 038 7.861 0.26 8.57i 0.26 11.021 032 Mn-54

< 0.010

< 0.007

< 0.005

< 0.008 Fe-59

< 0.022

< 0.020

< 0.019

< 0.026 Co-58

< 0.018

< 0.005

< 0.007

< 0.015 Co40

< 0.013

< 0.007

< 0.006

< 0.007 Zn-65

< 0.050

<0.032

< 0.031

< 0.039 Nb-95

< 0.021

<0.ON

< 0.009

< 0.009 Zr-95

< 0.017

< 0.008

< 0.008

< 0.020 Cyr134

< 0.024

< 0.013

< 0.015

< 0.019 Cs-137

< 0.010

< 0.006

< 0.006

< 0.008 Ba-140'

< 0.037

< 0.024

< 0.020

< 0.028 La-140"

< 0.003

< 0.004

< 0.005

< 0.004 Ce-144

< 0.074

< 0.031

< 0.044

< 0.059 Ac-228 0.631 0.05 0.161 0.04 0.161 0.03 0.23i 0.N Bi-212 0531 0.13

< 0.11 0.16i 0.07 0.22 0.11 Bi-214 0311 0.03 0.07f 0.02 0.12 i 0.01 0.141 0.02 Pb-212 056i 0.03 0.08i 0.01 0.13 0.01 0.1610.02 Pb-214 0351 0.03 0.091 0.02 0.151 0.02 0.141 0.02 Ra-226 0.95i 0.17

< 0.16 0.21i 0.10 03210.13 TI-208 0.191 0.02 0.031 0.01 0.041 0 01 0.061 0.01 a LLD at time of counting.

E-52

TABLE E-35 (Cont'd) location CL-88 CL-89 CL-105 Date Collected 10-16-95 10-16-95 10-16-95 Gross Alpha 4.13i 2.73 7.40i 3.12

< 4.42 Gross Beta 7.471 2.18 9.041 223 11.72i 3.27 Sr-90

<0.010.

<0.008

<0.007 Be-7

< 0.084 0251 0.10

< 0.076 K-40 8.20t 0.27 936i 0.29 9.78i 026 Mn-54

< 0.008 -

< 0.009

< 0.007 Fe-59

< 0.023

< 0.024

< 0.024 Co-58

< 0.010

< 0.007

< 0.012 Co-60

< 0.009

< 0.009

< 0.006 Zn-65

< 0.037

< 0.041

< 0.029 Nb-95

'< 0.008

< 0.020

< 0.005 Zr-95 '

< 0.015 -

< 0.020

< 0.007 Cs-134

< 0.016

< 0.018

< 0.014 Cs-137

< 0.008 0.0211 0.008

< 0.005 Ba-140'

< 0.018

< 0.024

< 0.017 La-140"

< 0.003

< 0.002

< 0.002

. Ce-144

< 0.027

< 0.057

<0.050 Ac-228 0.21i 0.04 0.29i 0.01 0.15i 0.03 Bi-212 0.201 0.11 0.271 0.14 0.17i 0.07 Bi-214 0.131 0.02 0.191 0.02 0.1 0i 0.01 Pb-212 0.16i 0.02 026i0.02 0.11t 0.01 Pb-214 0.15i 0.02 0.22i 0.03 0.11 i 0.02 Ra-226 03210.12 039i0.12 0.261 0.10 TI-208 0.05i 0.01 0.09 0.01 0.05 i 0.01 a LLD at time of counting.

E-53

TABLE E-36 BOTTOM SEDIMENT ACTIVITY - (DCi/a drv)

Location CL-7C CL-10 CL-13A CL-17 t

Date Collected 04-06-95 04-06-95 04-06-95 04-06-95 i

Gross Alpha 4.561 138 15.23i 2.26

<1.02 4.84i 138.

Gross Beta 21.58i 2.75 26.771 1.69 10.51 2.23 2220i 2.64 Sr-90 0.01010.005 0.01310.006

<0.012

<0.009 Be-7 0.221 0.12 0.22i 0.12

< 0.073

< 0.12 K-40 18.601 0.41 18.90i 0.41 10.81: 027 18.55i 036 Mn-54 '

< 0.014

< 0.015

< 0.009

< 0.013 Fe-59

< 0.034

< 0.034

< 0.021

< 0.033 Co-58

< 0.021

< 0.020

< 0.009

< 0.008 Co-60

< 0.016b

< 0.013

< 0.011

< 0.013

[

Zn-65

< 0.059

< 0.064

< 0.034

< 0.048 Nb-95

< 0.028

< 0.028

< 0.014

< 0.023 Zr-95

< 0.029

< 0.027

< 0.014

< 0.021 1

Cs-134

< 0.032

< 0.032

< 0.015

< 0.027 Cs-137 0.17 0.02 03210.03

< 0.009 0.0 % i 0.013 Ba-140'

< 0.023

< 0.051

< 0.025

< 0.031 I

La-140'

< 0.015

< 0.017

< 0.003

< 0.013 Ce-144

< 0.11

< 0.13

< 0.052

< 0.084 Ac-228 1.05i 0.06 1.23t 0.07 0.27 0.03 0.88i 0.05 i

Bi-212 0.981 0.20 131 0.21 0.28 0.10 0.87i 0.15 Bi.214 0.801 0.03 0.69i 0.03 0.201 0.02 0.631 0.03 i

Pb-212 1.071 0.03 1.231 0.03 0.27: 0.01 0.92i 0.03 i

Pb-214 0.881 0.04 0.881 0.04 0.22 0.02 0.69i 0.03 Ra-226 1.84i 0.28 2.031 0.02 032:0.11 1.471 0.19 TI-208 0341 0.02 0390i 0.020 0.089 0.010 0.2801 0.190 t

'LLD at time of counting.

r

[

E-54 i

TABLE E-36 (Cont'd)

Location CL-19 CL-89 CL-105 Date Collected 10-16-95 10-16-95 10-16-95 Gross Alpha 5.761 1.76

<1.24 15.91i 235 Gross Beta 11.091 1.42 9.461 2.12 30.011 1.80 Sr-90

<0.007

<0.009 0.01510.006 Be-7 032i 0.17

< 0.18

<037 K-40 13.241 036 8.93 0.48 20351 0.94 Mn-54

< 0.015

< 0.018

< 0.050 Fe-59

< 0.022

< 0.034

< 0.080 Co-58

< 0.010

< 0.013

< 0.021 Co-60

< 0.017

< 0.018

< 0.031 Zn-65

< 0.039

<0.M3

< 0.16 Nb-95

< 0.019

< 0.029

< 0.067 Zr-95

< 0.031

< 0.016

< 0.14 Cs-134

< 0.021

< 0.029

< 0.073 Cs-137 0.0521 0.019

< 0.022 036i 0.07 Ba-140'

< 0.046

< 0.068

< 0.14 La-140'

< 0.014

< 0.013

< 0.036 Ce-144

< 0.089

< 0.14

< 0.28 Ac-228 0.501 0.05 0.27 0.07 132i0.16 Bi-212 0.49l 0.10

< 0.23

- 135i 0.49 Bi-214 0.271 0.02 0.18 0.03 0.591 0.08 Pb-212 0.441 0.02 0.291 0.03 1.281 0.07 Pb-214 034i 0.04 0.22 0.05 0.941 0.09 Ra-226 0.641 0.19

< 0.42 1.86 0.07 TI-208 0.151 0.02 0.091: 0.025 0.451 0.06 aLLD at time of counting.

E-55

I TABLE E-36 (Cont'd)

Location CL-7C CL-7C CL-10 CL-13A CL-17 Date CollMed 10-16-95 10-16-95 10-16 95 10-16-95 10-16-95 Gross Alpha 8.121 4.91 1537i 5.84 15.941 4.41

< 3.76 9.081 5.10 Gross Beta 2335i 430 26.34i 4.07 23.62 2.87 9.01i 2.36 25.491 432 Sr-90 0.0151 0.006 0.0251 0.012

<0.011

<0.009 0.0121 0.005 Be-7 0.27i 0.12 0.481 0.18

<0.19

< 0.09

< 0.12 K-40 18.03i 0.45 20.06i 0.57 18.401 028 9.741 0.29 1634i 0.43 Mn-54

< 0.022

< 0.017

< 0.015

< 0.008

< 0.013 Fe-59

< 0.030

< 0.035

< 0.024

< 0.016

< 0.038 Co-58

< 0.010

< 0.029

< 0.021

< 0.004

< 0.009 Co-60

< 0.016

< 0.016

< 0.015

< 0.076

< 0.010 Zn-65

< 0.065

< 0.091

< 0.064

< 0.040

< 0.063 Nb-95

< 0.024

< 0.047

< 0.045

< 0.011

< 0.027 Zr-95

< 0.031

< 0.023

< 0.038

< 0.015

< 0.024 Cs-134

< 0.017

< 0.048

< 0.036

< 0.017

< 0.032 Cs-137 0.13i 0.02 0.22i 0.03 031t 0.01

< 0.008 0.094i 0.015 Ba,14(f

< 0.034

< 0.037

< 0.031

< 0.028

< 0.046 l

La-14(f

< 0.018

< 0.012

< 0.016

< 0.004

< 0.007 j

Ce-144

< 0.11

< 0.12

<0.110

< 0.%5

< 0.059 l

Ac-228 0.991 0.06 134i 0.09 1.191 0.05 0.261 0.03 0.831 0.06 Bi-212 0.771 0.24 120i0.21 1331 0.16 0.151 0.09 0.791 0.26 Bi-214 0.601 0.03 0.% i 0.04 0.%i0.02 0.131 0.02 0.471 0.03 Pb-212 0.92i 0.03 1.25 i 0.05 1.30t 0.02 0.191 0.02 0.80i 0.03 Pb-214 0.731 0.04 1.18i 0.06 1.08i 0.03 0.201 0.02 0.651 0.05 Ra-226 1.491 0.26 2.00i 0.30 2.23i 0.16 031i 0.12 1.23 0.21 TI-208 03010.02 0.42i 0.03 0.40f 0.02 0.071 0.01 0.27i 0.02 aLLD at time of counting.

4 E-56

TABLE E-36 (Cont'd)

Locadon CL-19 CL-89 CL-105 Date Collected 10-16-95 10-16-95 10-16-95 Gross Alpha

< 4.76

< 5.47 12.031 5.80 Gross Beta 1138i 3.21 10.22 3.27 2336f 421 Sr-90

<0.013

<0.008 0.0201 0.008 Be-7

< 0.11

< 0.21

< 0.42 K-40 13.011 038 13.49 0.51 22.721 0.72 Mn-54

< 0.012

< 0.018

< 0.032 Fe-59

< 0.014

< 0.040

< 0.051 Co-58

< 0.010

< 0.030

< 0.038 Co-60

< 0.011

< 0.027

< 0.022 Zn-65

< 0.050

< 0.063

< 0.13 Nb-95

< 0.008

< 0.020

< 0.076 Zr-95

< 0.022

< 0.046

< 0.041 Cs-134

< 0.022

< 0.034

< 0.065 Cs-137

< 0.011

< 0.022 0.41i 0.04 Ba-14(f

< 0.032

< 0.068

< 0.084 La-14(f

< 0.003

< 0.014

< 0.032 Ce-144

< 0.075

< 0.11

< 0.18 Ac-228 0331 0.05 0.47 0.07 1.47i 0.14 Bi-212

< 0.15 0.42: 0.02 135i034 Bi-214 0.21i 0.02 032:0.03 13810.72 Pb-212 0.24t 0.02 0.46: 0.03 1.67t o.06 Pb-214 0.221 0.03 037:0.04 1.51 i 0.08 Ra-226 0.57i 0.15 0.72: 0.20 2.711 0.40 TI-208 0.08i 0.02 0.16: 0.02 0.56i 0.04 aLLD at time of counting.

E-57

TABLE E-37 SOIL ACTIVITY - (DCi/c dry)

Imcation CL-16C Date Collected 11-08-95 Gross Alpha 12.03i 4.20 Gross Beta 21.861 3.02 Be-7

< 0.18 K-40 17.71i 0.42 Mn-54

< 0.015 Fe-59

< 0.033 Co-58

< 0.017 Co-60

< 0.019 Zn-65

< 0.070 Nb-95

< 0.042 Zr-95

< 0.036 Cs-134

< 0.022 Cs-137

< 0.018 Ba-140'

< 0.056 La-140'

< 0.012 Ce-144

< 0.11 Ac-228 0.791 0.07 Bi-212 0.50i 0.21 Bi-21$

0.561 0.04 Pb-212 0.811 0.03 Pb-214 0.591 0.04 Ra-226 1.341 0.19 TI-208 0.261 0.02 a LLD at time of counting E-58

FOR MOREINFORMATION, CALL OR WRITE The Radiation Protection Department Clinton Power Station LLINGIS Cki ton 11 nols 61727 (217) 935-8881

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