ML20101N275

1995 Annual Radiological Environ Operating Rept

ML20101N275
Person / Time
Site:	Grand Gulf
Issue date:	12/31/1995
From:	Hutchinson C ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GNRO-96-00034, GNRO-96-34, NUDOCS 9604080324
Download: ML20101N275 (157)

Text

.

Entsrgy Opsrausns,Inc.

_ ENTERGY eo so 758 Port G;bson. MS 39150 Te! 601437 2800 C. R. Hutchinson Vre hesdent April 5, 1996

$%D m,,som U.S. Nuclear Regulatory Comunission Mail Station P1-37 Washington, D.C.

20555 Attention:

Document Control v7,sk

Subject:

Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF-29 Annual Radiological Environmental Operating Report for 1995 GNRO-9 6/ 00034 l

Gentlemen In accordance with the Grand Gulf Nuclear Station Unit 1 Technical Specification 5.6.2, attached is the Annual Radiolocical Environmental Operatina Report for the period January 1, 1995 through December 31, 1995.

Yours trul g

M CRH/MJL/ams attachment:

1995 Annual Radiological Environmencal Operating Report cc:

(See Next Page) 080107

/

9604080324 951231 h'

PDR ADOCK 05000416 R

8 pyg t

April 5, 1996 GNRO-96/00034 Page 2 of 3 I

l cca Mr. J. E. Tedrow (w/a)

Mr. R. B. McGehee (w/a)

Mr. N. S. Reynolds (w/a)

Mr. H. L. Thomas (w/o)

Mr. J. W. Yelverton (w/o)

Mr. L. J. Callan (w/a)

Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 Mr.

J. N. Donohew, Project Manager (w/2)

Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 13H3 Washington, D.C.

20555 coussus a

• • d

-An a

w4au-1 i

l l

GRAND GULF NUCLEAR STATION l

l f

1995 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

+

l i

I I

1 l

l 1

s i

k i

1 I

(

_ _ _ = _ - -

Summary The Annual Radiological Environmental Operating Report (AREOR) j presents Grand Gulf Nuclear Station (GGNS) Environmental Surveillance Program (ESP) data obtained through analyses of environmental samples i

collected for the period January 1,1995 through December 31,1995. The AREOR fulfills the requirements of GGNS Technical Specifications 5.6.2.

During 1995 and as in previous years, GGNS detected plant-related radionuclides in the discharge basin surface water (Manganese-54, Cobalt-60 and Tritium) and barge slip sediment (Manganese-54, Cobalt-58, Cobalt-60 and Cesium-137). GGNS personnel routinely monitor results from these areas to note any trends. Their 1995 review of these areas over previous years indicates the following:

l Manganese-54 and Cobalt-60 levels in the discharge basin surface l

water are not demonstrating any increase above the required lower i

l limits of detection values outlined in the Offsite Dose Calculation Manual (ODCM) Specifications.

Tritium levels in the discharge basin surface water have increased l

due to increased levels in the reactor coolant and radioactive i

efIluents caused by stress corrosion cracking of control blade i

absorber tubes. This has resulted in a pathway for the release of boron. Subsequently, tritium production results from the neutron activation. Reduction in tritium levels can be expected as control l

blades are gradually replaced and the number of blades above 20%

depletion is reduced. No regulatory limits for radioactive efiluents have been exceeded.

l 4

k ii I

2 9

Radionuclides in the barge slip sediment appear to be stabilizing as compared to previous years.

Section 2.0 of this report provides a discussion of these results.

GGNS personnel also made modifications to the ESP during 1995 as result of updating the atmospheric deposition rates and evaluation of historical data obtained from supplementallocations. These included:

Relocating air sampling stations AS-6 RS (Sector C, Radius 0.5 miles) and AS-7 MT (Sector A, Radius 0.9 miles) to AS-6 BF (Sector K, Radius 0.4 miles) and AS-7 UH (Sector H, Radius 0.5 miles),

respectively.

Relocating Sector R garden to Sector H.

Discontinuing supplemental air sampling stations AS-4 GJOE, AS-8 WR, AS-10 HR and AS-11 BB.

Environmental Surveillance Proeram GGNS established the ESP in 1978 before the station became operational (1985) to provide data on background radiation and radioactivity not mally present in the area. GGNS has continued to monitor the environment by sampling air, milk, water, vegetation, sediment and fish, as well as measuring radiation directly.

The ESP includes sampling indicator and control locations within an 18-mile radius of the plant. The ESP utilizes indicator locations near the site to show any increases or buildup of radioactivity that might occur due to station operation, and control locations farther away from the site to indicate the presence of only naturally occurring radioactivity. GGNS personnel compare indicator results with control and preoperational results to assess any impact GGNS operation might have had on the surrounding environment.

1 iii t

r-Excluding duplicate samples, GGNS personnel collected 1,028 environmental samples during 1995 and had them analyzed for radioactivity.

They compared results ofindicator locations with control locations and previous studies, and concluded that overall no significant relationship exists between GGNS operation and effect on the plant environs. Their review of 1995 data, l

in many cases, showed undetectable radiation levels in the environment and near l

background levels in significant pathways associated with GGNS, with exception l

of the tritium levels detected in the discharge basin surface water. Therefore, they concluded that GGNS operation has had no harmful effects or irreversible damage l

to the environment.

Attachments Attachment I contains results of air, milk, water, vegetation, sediment and fish samples collected in 1995 and analyzed by Entergy Services, Inc.,

(ESI) System Chemistry Section. It also includes ESI System Chemistry's results in the Environmental Protection Agency (EPA) interlaboratory Comparison Program.

Attachment II contains results of thermoluminescent dosimeicts (TLDs) collected in 1995 and analyzed by Waterford3's Dosimetry Section.

l iv t

l 1

l TABLE OF CONTENTS 1

l Summary.

ii l

List of Tables.

vii l

List of Figures..

viii List of Attachments.....

ix Section Ip. git 1.0 Introduction.

1-i i

1.1 Radiation..

1-1 1.2 Benefits of Radiation..

1-1 1.3 Radiation Perspectives...

1-2 1.4 Environmental Surveil!ance Program 1

Purpose and Design Criteria.

1-2 1

1.5 Dose Pathways Associated with GGNS..

1-3 l

1.6 Pathways Monitored.......

1-3 l

1.7 Previous Data Comparison..

1-4 l

2.0 Environmental Sun'eillance Program.

2-i 2.1 Air Particulates and Radioiodines..

2-1 2.2 Thermoluminescent Dosimetry..

2-6 2.3 Milk..

2-13 2.4 W ater..

2-15 l

2.5 Vegetation.

2-21 2.6 Sediment.....

2-23 l

2.7 Fish.

2-27 l

2.8 Special Samples.

2-29 l

i l.

2.9 Annual Land Use Census..

2-31 I

l l

I 1

i Y

l i

TABLE OF CONTENTS Section M

T Pagg 3.0 Analytical Program Technical Description.

3-i 3.1 Sample Handling and Treatment....

3-1 3.2 Gross Beta Air Sample Analysis.

3-2 3.3 Gross Beta Water Sample Analysis.

3-2 3.4 Tritium Water Sample Analysis.....

3-2 3.5 Iodine-131 Sample Analysis.

3-3 3.6 Gamma Isotopic Sample Analysis.

3-3 3.7 Thermoluminescent Dosimetry..

3-5 3.8 Data Reporting Conventions.

3-6 4.0 Environmental Surveillance Program Summary....

4-i 4.1 1995 Program Results Summary....

4-1 5.0 Quality Control Data...

5-i 5.1 Crosscheck Program Results..

5-1 5.2 Duplicate Samples..

5-1 6.0 1995 Sampling and Analytical Results.

6-i 6.1 1995 Data.

6-1 6.2 Lower Limit of Detection...

6-1 6.3 Reporting Levels.

6-1 6.4 Sampling Deviations.

6-1 6.5 Radioactivity Not Attributable to GGNS.

6-3 6.6 Sampling Relocation.

6-3 6.7 Comparison to Federal and State Programs.

6-3 6.8 Unavailable Results.

6-4 6.9 Harmful Effects or Irreversible Damage.

6-4 vi

LIST OF TABLES Table No.

Title

_P_agg 1-1 Radiation Risks..

1-5 l

1-2 Air Sample Locations..

1-6 l-3 TLD Locations.

1-7 1-4 Milk and Water Locations..

1-12 1

1-5 Vegetation, Sediment and Fish Locations.

1-14 2-1 Average TLD Dose Rates..

. 2-9 2-2 Barge Slip Sediment Analytical Summary.

2-26 2-3 1994-1995 Land Use Census Changu.

2-34 2-4 1995 Land Use Census.

... 2-3 5 4-1 Environmental Monitoring Program Summary.

4-2 4-2 Indicator & Control Locations..

4-12 1

1

)

4 i

\\

1 Ykk I

r

r l

LIST OF FIGURES l

l Finure No.

Title fagg 1-1 Exposure Pathways.

1-16 l-2 Sample Collection Sites - 5 Mile Map..

1-17 1-3 Sample Collection Sites - 10 Mile Map.

1-18 2-1 Air Sample Gross Beta Concentrations..

2-4 2-2 TLD Radiation Dose.

2-10 2-3 GGNS and NRC TLDs.

2-12 l

2-4 Discharge Basin Tritium Results..

2-20 j

5-1 EPA Intercomparison Study.

5-3 l

l 1

1 Viii i

l f

LIST OF ATTACHMENTS Attachment Title g

i I

1995 Environmental Sampling and Analytical Report.

I_i II 1995 Thermoluminescent Dosimetry Report....

II-i l

l l

I l

l l

l i

\\

i 1

ix

I SECTION

1.0 INTRODUCTION

i 1

1-i

?

1

1.1 Radiation People are always subjected to natural radiation. This radiation exposure comes from the sun and naturally occurring radioactive materials present in the earth, structures we inhabit, and in the food and water we consume. There are radioactive gases in the air we breathe and our bodies are themselves radioactive. The levels of natural or background radiation vary greatly from location to location. The average United States resident receives approximately 300 millirem a year from natural background as shown in Table 1-1.

In addition, man-made sources of radiation, such as X-rays, radiation for medical purposes, fallout from nuclear explosives testing and radioactive materials from nuclear power plants contribute additional exposure. However, as shown in Table 1-1, an individual receives the major portion of dose from natural background and other sources with nuclear power plants contributing <l.0 millirem. This would also be the case for individuals living around or next to GGNS.

1.2 Benefits of Radiation Nuclear power plays an important part in meeting today's electricity needs and will continue to serve as an important source of energy well into the future. In addition, other uses of radiation have brought tremendous benefits to our everyday lives during the past 20 or 30 years. Radioisotopes and controlled radiation are used, for example, to sterilize medical supplies, to improve the keeping qualities of foods, in industrial processes, in medical science, and in the study of environmental pollution, agriculture and hydrology. Medical diagnosis and treatment are the main sources of public exposure to man-made radiation, but the benefit in terms of human lives and health is enormous.

1-1 1

m.

1.3 Radiation Perspectives Although it is not generally realized, radioactive materials from nuclear power plants are strictly regulated, while naturally occurring radiation is to the most part, unregulated; however, as shown in Table 1-1, the public receives more exposure to naturally occurring radiation. For example, a person living near a 1000 MWe coal fired plant could receive 7.2 millirem in a year from naturally occurnng radioactive materials contained in the coal that is burned. A person living adjacent to a similar sized nuclear plant is expected to receive

<l.0 millirem in a year.

In addition, radioactive elements lose their radioactivity, and 1

resulting toxicity, with time. In comparison, potentially toxic non-radioactive materials, such as lead and mercury, can present a danger to humans until properly treated, stabilized, and disposed.

1.4 Environmental Surveillance Program Purpose and Desien Criteria GGNS established the ESP to minimize any associated radiation endangerment to human health or the environment by ensuring that plant

)

operating controls function properly. The ESP purpose involves:

Evaluating environmental sampling procedures, equipment and techniques Measuring radiation levels and their variations in environmental e

media in the area surrounding the plant Determining average levels of radiation and radioactive material in various environmental media i

Detecting effects, if any, of GGNS operation on the environmental e

radiation levels and concentrations.

l-2 i

The ESP design griteria includes:

r Analyzing important pathways for anticipated types and quantities of radionuclides released into the environment Considering the possibility of a buildup oflong-lived e

i i

radionuclides in the environment and identifying physical and biological accumulations that may contribute to human exposures Considering the potential radiation exposure to plant and animal life in the environment surrounding GGNS Correlating levels of radiation and radioactivity in the environment with radioactive releases from station operation.

l 1.5 Dose Pathways Associated with GGNS Figure 1-1 shows potential exposure pathways that could occur as a result of a nuclear power plant. However, direct dose from gaseous effluent and thyroid dose from ingesting milk involves the most significant environmental dose pathways from a nuclear power station.

l GGNS operations have little, if any, impact on these pathways due to l

very low levels of radiation released, remote location and absence of milking animals within five miles of GGNS. In addition, the GGNS Final Environmental Report lists the first use of drinking water from l

the Mississippi River as more than 200 miles downstream. Therefore, GGNS operations have little, if any, impact on this pathway.

i 1.6 Pathways Monitored The ESP includes the sampling program for monitoring airborne, waterborne, ingestion and direct radiation pathways as required by Table 6.12.1-1 in the ODCM. GGNS supplements this program with additional i

i 4

1-3 l

l sampling in order to provide a comprehensive and well-balanced program.

t l

l Tables 1-2 through 1-5 provide a description of the GGNS ESP sample t

l locations. Only sample locations required by the ODCM are keyed to Figures 1-2 and 1-3 as shown in the Tables.

1.7 Previous Data Comoerison i

GGNS personnel observed only one significant change between 1995 results and those from previous years. Tritium levels in the discharge basin continue to be elevated due to stress corrosion cracking l

l of the control blade absorber tubes. This has resulted in a pathway for l

the release of boron into the reactor water, thereby producing tritium.

All other REMP results remained at levels similar to those of previous years. Such results confirm proper functioning of GGNS effluent controls and equipment.

l l

l i

1-4 4

1 A

]

TABLE 11 Radiation Risks i

i Radiation Risks in Perspective EstimatedLoss of Average Llie i

Radiation Dose Comparisons Expectancy From Various Health Risks i

Estimated Days roximate 1

AgEM/ Year of Life Expectancy j

Natural Background Health Risk Lost (average)

{

Average U.S. Resident..

.300 Smeking 20 Cigarettes / Day M70 tas eev.

s 1

Average Denver Resident....

-380 Overwe. htterw:

985 a.ines)

g 1

Radon in average households All Accidents Combined

__.435 tu se s) i New York /New Jersey _

..~.. 360 i

Massachusetts 475 Auto Accidents 200 l

Medical Exposure Atcohol Consumption (us.herage) 130 l

Average U.S. Citzen.............

.50 Home Accidents 95 j

Typical Medical Examination Drowning 41 Dental X-Rays tuwuro....

3,000 (sun Chest X. Rays........_....

10 (sm; Natural Background Radation 8

j Gastro. intestinal Series tume4 %.........1,400Is"'

Medical Diagnostic X Rays tus.mersee;__6 l

Occupational Exposure All Catastrophes (secousw.an.)

3.5 Average Pilgrim Station Radiation Worker reac, rmon

-600unsamr One REM Radiation 1

d i

l Background Radiation Sources 1

i i

Radon 55%

j i

5 I

l i

Cosmic 8%

Terres: rial 8%

• --- Nuclear Medicine 4%

• - Consumer Produe:s 3%

r intemal 11%

• Otner <1%

Occupational 0.3%

Fallout 0.3%

r Medica! X. Rays 11%

Nuclear Fuel 0.1%

Miscellaneous 0.1%

Tne percentage contribution of various radiation sources to the total ave. age eMective dcse equivalent in the U.S. p

$ Y$

1-5

TABLE 1-2 Air Sample IAcations Air Sampler Number figgrg Location l

AS-1 PG l-3 Southeast of GGNS at the Port Gibson City Barn (Sector G, Radius 5.5 miles) l AS-3 61VA 1-3 North-northeast of GGNS on Hwy 61, north of the Vicksburg Airport (Sector B, Radius 18 miles)

AS-4 GJOE Not Southwest of GGNS, Glodjo property on Shown Bald Hill Road (Sector L, Radius 0.9 miles)

AS-5 TC 1-2 South of GGNS at the former Training Center (Sector J, Radius 0.4 miles)

AS-6 RS Not Northeast of GGNS, south side of Grand Shown Gulf Road (Sector C, Radius 0.5 miles)

AS-6 BF 1-2 South-southwest of GGNS at the GGNS Ball Field (Sector K, Radius 0.4 miles)

AS-7 MT Not North-northwest ofGGNS, located next Shown to the Meteorological Tower (Sector A, Radius 0.9 miles)

AS-7 UH 1-2 South-southeast of GGNS at the IBEW Union Hall (Sector H, Radius 0.5 miles)

AS-8 WR Not East of GGNS, located on Bald Hill Road Shown near the eastern SITE BOUNDARY (Sector E, Radius 0.6 miles)

AS-10 HR Not Near County Road / Heavy Haul Road Shown intersection (Sector P, Radius 0.8 miles)

AS-11 BB Not Near influent end of Basin B (Sector M, Shown Radius 0.3 miles) l-6

TABLE l-3 TLD Locations 1

TLD No.

Location Finure Sss1E Mils M-00 Maintained in lead shield l

during the exposure period M-01 Across the road from Lake Claiborne entry gate 1-2 E

3.5 M-07 AS-1 PG, Port Gibson City Barn 1-3 G

5.5 M-09 Warner Tully Y-Camp 1-2 D

3.5 M-10 Grand Gulf Military Park 1-2 A

1.5 j

i M-14 AS-3-61VA, Hwy 61, north (Control) of Vicksburg Airport 1-3 B

18.0 M-16 Meteorological Tower 1-2 A

0.9 1

l M-17 South side, Grand Gulf Road 1-2 C

0.5 M-19 Eastern SITE BOUNDARY property line, NNE ofHWSA 1-2 E

0.5 l

l M-20 Hazardous waste storage area (HWSA) 1-2 F

0.5 l

M-21 AS-5-TC, near former Training Center Building, on Bald Hill Road 1-2 J

0.4 M-22 Former RR entrance crossing on l

Bald Hill Road 1-2 G

0.5 M-23 Gin Lake Road 50 yards north of Heavy Haul Road on power pole 1-2 Q

0.5 l

l-7 1

'I TABLE 1-3 TLD Locations TLD No.

Location Figure Sggigr Mile M-25 Radial Well Number 1 1-2 N

1.6 M-27 WSW near SITE BOUNDARY property line, (Near Bucksnort Road) 1-2 M

1.5 M-28 Former Glodjo residence 1-2 L

0.9 M-31 Duplicate TLD installed quarterly at varying locations M-32 Duplicate TLD installed quarterly at varying locations M-33 Newellton, Louisiana, Water (Control)

Tower 1-3 P

12.5 M-36 Curve on HW 608, point nearest GGNS at power pole 1-2 P

5.0 M-38 Lake Bmin State Park, entrance road 1-3 M

9.5 M-39 St. Joseph, Louisiana, Aux.

Water Tank 1-3 M

13.0 M-40 International Paper Road, South of River Mile Marker 1-2 M

5.0 M-41 Radial Well Number 4 1-2 P

1.3 M-45 Old Visitor Center gate 1-2 D

0.5 1-8

I TABLE 1-3 TLD Locations TLD No.

Location Figure Sector Mile i

M-47 Bridge 0.6 miles west of Rodney-Westside Road /

Mont Gomer Road 4

intersection, north side 1-3 L

5.2 M-48 0.4 miles South on Mont Gomer Road on west side 1-2 K

4.8 M-49 Fork in Bessie Weathers Road /

Shaifer Road 1-2 H

4.5 M-50 Panola Hunting Club entrance 1-3 B

5.3 M-51 Ingelside Karnac Ferry Road between Deer Camp Road and Y-Camp Road 1-2 C

4.2 M-55 Near Ingelside Karnac Ferry Road /

Ashland Road Intersection 1-2 D

5.0 M-56 H.W. Watson Elementary and syunior High School 1-2 G

4.2 M-57 Hwy 61, behind the Welcome to Port Gibson sign at Glensdale Subdivision 1-2 F

4.5 M-58 Hwy 61, Big Bayou Pierre bridge, southeast end 1-2 E

5.0 M-59 Offlevee at Winter Quarters Hunting camp 1-3 N

5.1 M-60 Duplicate TLD installed quarterly at varying locations 1-9

i TABLE 1-3 TLD Location TLD No.

Location Figure Sggigr Mjilt M-61 Protected area fence Not D

Onsite Shown l

M-62 Protected area fence Not E

Onsite l

Shown M-63 Protected area fence Not N

Onsite Shown M-64 Protected area fence Not M

Onsite Shown M-65 Protected area fence Not L

Onsite Shown M-66 Protected area fence Not K

Onsite i

Shown l

M-67 Protected area fence Not J

Onsite

)

Shown M-68 Protected area fence Not H

Onsite Shown M-69 Protected area fence Not G

Onsite Shown M-70 Protected area fence Not F

Onsite Shown M-71 Protected area fence Not C

Onsite Shown l

M-72 Protected area fence Not B

Onsite l

Shown 1-10 i

i

TABLE l-3 TLD Locations TLD No.

Location Figure Sggigr Mile i

M-74 Protected area fence Not P

Onsite Shown M-76 Protected area fence Not A

Onsite Shown i

M-77 Protected area fence Not R

Onsite Shown M-81 Administration Building Not Q

Onsite i

Shown M-86 North Site Access Road entrance near SITE BOUNDARY l-2 B

0.5 M-88 River mile marker 409.5 1-2 A

4.2 M-89 Middle Ground Island 1-2 R

4.4 M-90 Across from Middle Ground Island, near Louisiana State Line (Yucatan cutoff of 1929) 1-2 Q

3.5 i

M-91 Transmission line by pond (Off Shaifer Road near Widows Creek) 1-2 J

4.5 i

M-92 Fence behind orchard (Bald Hill Road) 12 K

0.4 M-93 Underground cable sign (Bald Hill Road) 1-2 H

0.4 M-94 Sector R near Meteorological Tower 1-2 R

0.8 1-11

,M, m

a.-

.L y

l 1

l i

TABLE 1-4 Milk and Water Locations i

)

l Milk (Control Location)

Eiggrf Location l

ALCONT l-3 Located south-southwest of GGNS at Alcorn State l

University (Sector K, Radius J

l 10.5 miles) l l

Cistern Water l

McGee Cisterr.

1-2 Located north of GGNS at the McGee house on Frazier Road (Sector A, Radius 0.9 miles)

Willis Cistern 1-3 Located at the C. E. Willis house on Shiloh Road east-northeast of GGNS near the the Shiloh Baptist Church (Sector D, Radius 6.0 miles)

Grand Gulf Road Not Located at Hiram Wells (Alternate Location)

Shown residence on Grand Gulf Road (Sector E, Radius 0.7 miles)

Surface Water Upstream 1-2 At least 4500 fl upstream of the GGNS discharge point into the Mississippi River to allow adequate mixing of the Mississippi and Big Black Rivers (Sector Q-R,1.8 miles) 1-12

TABLE 1-4 Milk and Water lecations Surface Water (cont'd)

Eigp_rt Location Downstream 1-2 At least 5000 ft downstream of the GGNS discharge point into the Mississippi River near Radial Well No.1 (Sector N,1.6 miles)

Discharge Basin 1-2 West-northwest of GGNS in parking lot, YRD-133-PKG-LOT A (Sector P,0.2 miles)

Groundwater PGWELL l-2 PORT GIBSON Wl!LLS -

Taken from distribution system or one of the five wells (Sector G, Radius 5.0 miles)

AAWELL 1-2 Arnold Acres Well(Sector J, Radius 1.1 miles)

)

l 1-13

TABLE l-5 Venetation. Sediment and Fish Locations Venetation Figure Location BroadleafVegetation 1-2 South of GGNS near former Training Center on Bald Hill Road (Sector J,0.4 miles) 1-2 North-northwest of GGNS near the Meteorological Tower (Sector R,1.0 miles) l-2 South-southeast of GGNS l

between the former training center and the IREW Union I

Hall on Bald Hill Road (Sector H,0.4 miles) l-3 Alcorn State University

(

or 1 5 mi e ) when available, otherwise a l

location 15-30 km distant l

Sediment t

SEDHAM l-2 Downstream of the GGNS discharge point in the Mississippi River near Hamilton Lake outlet (Sector N,1.6 miles)

SEDBAR Not Barge slip (Sector Q, Shown 1.5 miles)

SEDCONT Not Upstream from the GGNS Shown discharge point into the Mississippi River in the vicinity ofupper Grand Gulf Landing (Sector R,2.0 miles) l-14

TABLE 1-5 Venetation. Sediment and Fish Locations Fish Figure Location Fish and Invertebrates 1-2 Downstream of the GGNS discharge point into the Mississippi River 1-2 Upstream of the GGNS discharge point into the Mississippi River uninfluenced by plant operations i

l I

l-15

FIGURE 1-1 Exposure Pathways EFrLUENTS LIQUID EFFLUENTS l

~$1

}*

A

'=

f Direct h,?

s m

4 3

J_

Irradiation y

[

W W

Transport of Fuel and Waste Irradiation ei l

,.9 eU [ ', Picnic) r gge s

hg,g (it5 o

\\*

1 s.

5

,e 1

o.

i

)

e 0 'g\\t9' Svteming A

d @ d di n $

1 cA w

\\\\

ll$m= & &

w

- = _ =

p -- -@

Ingestion l

_p

._ q 1-16

FIGURE 1-3 x

Samnie Collection Sites - 5 Mile Man N

R

,,. '.A C

aaA'.)'.c a.

.g

.s""'..

s.

t i

se

.,o N/f o..._

\\

..e. y ;...

[_

,/,

,s a

i I

/

l.%54=

N, g

g j

l poeat g

ou

+y f

\\

\\.

,c', f.

.a.

\\

a

+ -

• me

,V

O

• e%

e v

/

l

/

~.,,,.

s..

.../

.K.

~

d.

t T

."2 '.,,

4

,t 1

(

i.

)

D L

... s g_

'/

.s.

s.

J,,'l' !

_.g s.

-tag

.7 s

ou

/ L

\\'}l t k

O.9 9.t,g a.

e>

• Lt h.

. ~.

y

.n

.e

.- 7 s p-.-,o n

+

.=

.~

e@f

.t

~

a.

'g 9

e

. l.,)

4 G

~

g

(

j

..s a

e m.

o-

.-f ts eq \\

y

.g m

1

=_

<s p

.g i e

s,

,e

(

- y.

. - - - ~

e.,

\\11SSISSIPPI % ",,~~~(..

..:, x

/

n

% b'g.i 4 :y '

\\

a,i c-

.~

u "cino

""Q 3 G4,,,,

g q

+

O

'-'1lrd

~

f M

))y' f

g; F

EOCNNMC'

,3

/

e g

.\\ '

i,

.g

/

t

. swa 1

F/

3 n

'g '

onano aut, nuettan star o=

~

q"l

l.,

• • • o s u.e t

.r.a*

oi e

s s

o-u l

I

\\

A c-.*'

J

.i

. P:

I t

~ _. _

,.g

}g w..(

3 i

=. r ----

I

=.. =.. e i n i

1-17

FIGURE 13 rg r

g, (

sm on, coniurion sie. to um u.,

4 i 5 _-

f y

+

t t

TO VtotleWBG A.880st 1

B'

~Q - 3 yll R

! As C

N.... )l., i c._..

u t

1 g

ll i c, _-

N

,[

4c

/

2 j

,s I'

..Oi-.

i ln ',lm, fo, ',j

+

-+e---

'f,.

g g

h

\\"

I i.//

'**==~

C****'**'*'

i

\\

-u tRI, g I

'/j...

/

A g.~

Jl' 'f [/ M '** -,,.

1

~.

.,Ng'

.,./

I4m,

j

's e',,

[9 s s.,

/

A J

\\_ **

g ' +.m.

.r-

.o

~

='

l' -

4

.s.. -

.e.

p l l4 ., g, i'*, 5 ~ ~ * ' p' e, / n.~!" D A i, --j s g g (, s ,./ f 37 I 4 I./ me y \\ 'k a 4 g \\ ) \\ y cr b" - ,p -p 4 4e f t j c ~..\\ \\ u ~ Q .s'.s -A y ./ . I i N.T? ?., - s,( %W?~ r..$ i 'Q [, 7. & E NQ-Y I

• • %=

./ j ee - [ ~

• 4 i

l , MISSISSIPPl \\~" .~ '\\

• ' ~

/,f I ~ .u 4 5.c " - L ,/ s, ~ e 1 N 1 E ,5 h. / 'l '

• a

~~ ^< l i 1 1 -m-c t M = .p .f .v 3 I ,r*' { l t? t i i p[ j' f Q / 1 N L,

• i-y j

0 T i U \\,, l y s"- ./ i ....o e u =veaan statio= L,.+ _ ;.n ..a 5.mehas L.s.h.* Mot 'f.,,~.,. _./ .p c. / 3 m. Q J - _.-~~ l4

• Q,,

j U .....-..es..es n p _.__-..w 4 4 i 1 18 i 4 1

i 1 1 i i I SECTION 2.0 ENVIRONMENTAL SURVElLLANCE PROGRAM INTERPRETATIONS AND TRENDS OF RESULTS 1 PROGRAM DESCRIPTION i l ) i 2-i r

2.1 AIR PARTICULATES AND RADIOlODINES Note: Analytical results presented in Tables 1.1 through 1.13 of Attachment I and summarized in Section 4.0. l 2-1 { I

.~ l 2.1.1 Interpretations and Trends of Results Air particulate and Iodine-131 results for 1995 compare similarly to those obtained in previous years of the operational and preoperational ESP. Iodine-131 remained undetectable with gross beta concentrations 3 for indicator locations ranging from 0.004 - 0.058 pCi/m with a mean 3 of 0.016 pCi/m as compared to control locations which ranged from 3 3 0.006 - 0.039 pCi/m with a mean of 0.018 pCi/m. These results indicate the airborne exposure pathway has not been affected by the operation of GGNS and that airborne concentrations continue to be at background levels. Gross beta concentrations shown in Figure 2-1 further emphasize that GGNS has had no influence on ambient radiation levels. This figure shows 1995 monthly average results compared to preoperational results, and 1987 through 1995 annual average results for indicator locations compared to controls. Although GGNS personnel observed a small increase in activity for the month of September as compared to preoperational data, naturally occurring radionuclides present in the airborne pathway can vary due to climatic conditions and other factors, thereby affecting gross beta concentrations measured in the ambient air. Overall, values compare similarly over the period. j i 2.1.2 Pronram Description At the beginning of 1995, the GGNS ESP utilized nine continuous air samplers to provide gross beta, gamma and radiciodine activity measurements by the airborne exposure pathway. However as a result of updating the atmospheric deposition rates and evaluation of historical data obtained from supplemental locations, GGNS personnel discontinued four air sampling locations during March 1995. The remaining five air samplers range in distance from 0.3 to 18 miles (Figures 1-2 and 1-3, and Table 1-2). These air samplers met the i l requirements of ODCM Specification 6.12.1, located as follows: I 2-2

Three near the SITE BOUNDARY in areas of the highest calculated annual average groundlevel D/Q values One in a community that has the highest calculated annual average groundlevel D/Q value (Port Gibson) One in a control location (Vicksburg, MS). GGNS personnel placed air samplers one meter above the ground in weatherproof houses, with a 2-inch glass fiber filter in the intake line of the vacuum pump and a 2 x 1-inch charcoal cartridge located directly downstream. GGNS personnel maintained air flow at 1.25 cubic feet per minute. They changed filters and cartridges weekly and had them analyzed for gross beta radionuclides and radioiodine activity, respectively. The analytical contractor analyzed quarterly composites of air filters for gamma radionuclides. i 2-3

31 .lI)(l t ti!f t 'l:f,i3!' l l!!!!!f1 e

I!'t t

hIr i i ce D i v e o g N a r e i v A tc la O n s it i o n o a r p i e e ta p r o S t e i r n P ec 4 g n 8 u o s 9 A C t 1 1 l i us 2 a sn 9 l e e eo 7 t 9 u 4 rH Ri J t 1 2 u a a i gs t c s eo i o Fr BL n G s r u s o J t e e oa g l r p c a i Gi r m d e y 5 n v a a 9I A M S 9 la i r 1 n i o A it rp a A rep O i r 5 a 99 M 1 3 i m b / e iC F p e i g n a r a e J vA y4 5 3 5 2 5 1 5 0 0 0 lh 0 3 0 2 0 1 t 0 0 0 0 0 0 0 0 n 0 0 0 0 oM ))i. 1 1 I l

l

t! l!!! tt I r l e ti

[

l. ,!!ll i;!Irl!j ,!ll l l i i l 5 s 9 io 9 r t 1 n o C i 49 9 s 1 ro ta ic i s d n n 3 o I 9 9 i t 1 a r t i n e s c t 2 n lu s 9 o 9 l so C er 1 1 2 a Rtn i t uo 5 e e C t rB hs 1 2 u 9 gs - u 9 s s i s 1 F o s r r oe G rV G i e s l 5 r 0 p 9o 9 m 9t 9 a 1 a c 1 S i 7 d i r 8n i i A 9 1 9 89 1 i 88 9 3 1 m / l i Cp 78 e 9 g 1 a re v A 4 5 3 5 2 5 1 5 o 0 0 0 3 0 2 0 1 la u0 0 0 0 0 0 0 0 n 0 0 O 0 nA !l ll1{l il i I

i 2 a

l 1

2.2 THERMOLUMINESCENT DOSIMETRY 1 1 1 i i ) i Note: Analytical results presented in Attachment II and summarized in Section 4.0. 2-6

.- - -.. ~. t i 2.2.1 Interpretations and Trends of Results Even though gamma radiation dose in 1995 increased slightly when compared to previous years as illustrated in Table 2-1, this increase was noted at all monitored areas, including the control location. Therefore, this indicates that the ambient radiation levels cantinue to remain at or near e background and have been uninfluenced by the operation of GGNS. Figure 2-2, which further represents this conclusion, shows 1995 quarterly average results compared to 1979-1984 preoperational data, and 1987 - 1995 annual average results for indicator locations compared to the Vicksburg control. This figure indicates that ambient radiation levels have remained at or near background levels. As in previous yens, GGNS personnel performed an independent l t verification of the accurecy of GGNS TLD results through the use of i NRC TLDs. Figure 2-3 paesents these results through the third quarter of 1995. The ESP collects consistent, valid data based on the similarity ofTLD results. 2.2.2 Pronram Description The ESP measures ambient radiation in the environment surrounding GGNS v/ith 59 TLDs to provide a quantitative measurement of the area radiation levels. GGNS personnel plac'ed these environmental TLDs at l distances from 0 to 18 miles (Figures 1-2 and 1-3, and Table 1-3). They collected dosimeters quarterly. l l 2-7 i

i i The ESP used the following criteria in establishing TLD locations: ODCM Specification 6.12.1 requires 40 TLDs, positioned as outlined below: 1 An inner ring of 16 stations in the general area of the site boundary with one TLD in each meteorological sector An outer ring of 16 stations approximately in the 3-to 5-mile range with one TLD in each meteorological sector Eight TLDs located in special interest areas such as population centers and residences or ) utilized as controls. Sixteen permanent TLD stations at the protected area boundary. ~ The remaining 3 TLDs utilized as duplicates at varying locations. i 2-8 -7 t m-m-

TABLE 2-1 Averane TLD Dose Rates a Year Inner Ring Outer Ring SpecialInterest Control On-Site (Within 2-Mile Radius) (Within 6-Mile Radius) Areas (M-14) (Protected Area Boundary) 1987 18.3 17.7 17.9 18.8 21.8 1988 17.8 16.7 17.3 17.5 22.8 l 1989 18.0 17.6 18.5 18.2 20.9 1990 17.2 17.0 17.6 17.5 20.7 1991 18.I 17.9 17.8 18.0 23.7 l 1992 17.6 17.9 17.3 17.4 28.4 1993 17.8 17.9 18.5 19.8 25.3 1994 17.3 16.6 17.6 19.I 28.8 1995 19.8 19.1 19.3 20.8 29.0 i

• Units in millirem / quarter 2-9

Figure 2-2 TLD Radiation Dose l 1995 TLD Results for Inner and Outer Rings ODCM Specifications i Within Six (6) Mile Radius i Average mR/Otr l 50 45 1995 inner and Outer Ring Operational Average *1879 - 1984 Preoperanonal Average 35 30 25 0 i i i i 1st 2nd 3rd 4th 2-10

i1 i l ,j;;l tlt iI t!lt i l 5 99 lo r 1 tnoC i gr 4 u 9 b 9 s 1 kicV i 399 1 )g e n i i s R o s r 2 D slo e 99 t t l r u 2 n 1 ut 2i s n O o t e o 1 e a ri RC i 1 r e 2 ud Ds n 1 ga u FR Tr In 9 Ls i ( 9 e s 1 D 5 r L 9 V o t 9s a i T 1 r ic o d 7a n 0 t 9 8c i 9 M 9i 1 d 1 n I i l 9 89 1 i 8 r 8 t 9 O 1 /R i m e 7 g 8 a 9 re 1 vA la 0 5 0 5 0 5 0 u 5 4 4 3 3 2 nnA l l1Il l

t t'.

!.iI?ijl

iiI i;j ll;i l; it'.i,ei I

lt! Iltti'li !ll, i l C R s N r e t ra s u leQ iMd r 5 3 ts S i N G G s i D l L s t T l u 3C s s e r 2R R e eN n 2 a 1 r D s u leQ 2 ud L 5 gn T9 iMd r ia F C 9 5 3 1 S R 2 s t r N No i i G d f G na SNG G i s re s r t le a i u M Q d 2 r - 3 O - i i ts r O t R / m = e g 0 5 0 5 0 5 0 5 0 5 0 a r 5 4 4 3 3 2 2 1 1 e vA m. i i i l ,i I ,!l

- =.... - l i 2.3 MILK l l I l l l Note: Analytical results presented in Table 6.1 of Attachment I and summarized in Section 4.0. l 1 l 2-13

2.3.1 Interpretations and Trends of Results GGNS personnel did not collect milk samples within five miles of the GGNS site in 1995 due to the absence of milking animals. However, they did collect milk samples from the Alcorn State University controllocation and had them analyzed for Iodine-131 and gamma radionuclides. As in preoperational and previous operational years, GGNS has not detected any radionuclides attributable to plant operations. The ingestion pathway shown in ODCM Specification Table 6.12.1-1 specifies the frequency and location for obtaining milk samples. In addition, Table 6.12.1-1 provides for the use of a food product pathway as an alternative in instances of unavailable milk sampling locations. The ESP utilized this alternative in 1995. 2.3.2 Program Description ODCM Specifications require sample collection from milking animals in three locations within a five km distance having the highest dose potential. If unavailable, ODCM Specifications require one sample from milking animals in each of three areas, between five to eight km, where c ' ulated doses exceed 1.0 millirem per year. ODCM Specifications alsv.equire one control sample at a distance of 15-30 km. ] GGNS personnel collect a control milk sample semiannually from the Alcorn State University Dairy (Figure 1-3 and Table 1-4) to establish background data. However, the ESP did not include milk animals in 1995 within eight km (five miles) of GGNS due to unavailability. Therefore, Section 2.5, Vegetation, addresses the unavailability of milk samples within the vicinity of GGNS. 2-14 l y

l l 1 l 2.4 WATER i 1 r l l l Note: Analytical results presented in Tables 2.1 through 4.6 of Attachment I and summarized in Section 4.0. l l 2-15 I

2.4.1 Interoretations and Trends of Results Cistern Water GGNS personnel collected cistern water samples and had them analyzed for gross beta radionuclides, Iodine-131, tritium and gamma radionuclides. lodine-131, tritium and gamma radionuclides during 1995, and as in preoperational and previous operational years, remained at or near background levels. Gross beta concentrations for indicator locations ranged I from 1.5 - 22.1 pCi/l with a mean of 5.9 pCi/l as compared to the control which ranged from 1.5 - 4.1 pCi/l with a mean of 2.7 pCi/1. In addition, the 1995 gross beta indicator was similar to the evaage preoperational mean of 4.4 pCi/l. The elevated level of 22.1 pCi/l at the indicator location may have been attributable to sampling conditians and the presence of naturally occurring radionuclides or radionuclides from past atmospheric weapons testing that had become concentrated in the bottom of the holding tank over a period of time. Since water from this tank had leaked out due to damage incurred during inclement weather, GGNS personnel had to collect the sample from the holding tank floor, which was high in solids. GGNS noted that results from this location retumed to levels indicative of past sampling after the water level in the tank increased. Overall, concentrations continue to remain at background levels. Surface Water GGNS personnel collected surface water samples and had them analyzed i for tritium and gamma radionuclides. Gamma radionuclides remained undetectable in the downstream Mississippi River location which is consistent with preopentional and previous operational years. GGNS detected Cobait-60 once in the ups+. ream Mississippi River control location at a concentration of 2.0 pCi/1. Since this location is a control and the value is 87% below the required lower limits of detection (LLD) value of 15.0 pCi/1, there exists some 2-16 1

uncertainty on whether it is a true positive. Overall, gamma radionuclides at the upstream and downstream locations continue to remain at background levels. Manganese-54 was detected once in the discharge basin location at a concentration of 3.0 pCi/1. Since this value is 80% below the required LLD value of 15.0 pCi/1, there exists some uncertainty on whether it is a true positive. In addition, Cobalt-60 was detected at concentrations which ranged from 3.0 - 14.0 pCi/l with a mean of 6.7 pCi/1. Since Cobalt-60 has consistently been detected during 1995, GGNS personnel have monitored this activity to note trends. Currently, all detected values have been below the required LLD value of 15.0 pCi/1. Although GGNS detected tritium once in the downstream Mississippi River location at a concentration of 240.0 pCi/l, tritium activity at the upstream and downstream Mississippi River locations continue to be similar to background levels. Tritium levels for discharge basin surface water ranged from 5470.0 - 11430.0 pCi/l with a mean of 8815.0 'Ci/1. Tritium levels l) continue to be elevated due to increased levels in the reactor coolant and radioactive emuents caused by stress corrosion cracking of control blade absorber tubes. This has resulted in a pathway for the release of boron. Subsequently, tritium production results from the neutron activation. Reduction in the tritium levels can be expected as control blades are gradually replaced and the number of blades above 20% depletion is reduced. No, regulatory limits for radioactive emuents have been exceeded. Figure 2-4 presents tritium results from 1985 through 1995 for this area. 2-17 J

Groundwater GGNS personnel collected groundwater samples quarterly and had them analyzed for gamma radionuclides and tritium. As in preoperational l and previous operational years, concentrations remained at background levels. 2.4.2 Pronram Description ODCM Specifications require water sample collection in the vicinity of GGNS for the measurement of radioactivity by the waterborne exposure i pathway. l GGNS personnel sampled cistern water monthly at two locations, an indicator near the site (McGee) and a control (Willis) (Figures 1-2 and 1-3, and Table 1-4). In addition, GGNS personnel sampled an alternate indicator location (Grand Gulf Road) in May 1995 while the McGee cistern was undergoing repair due to hail damage incurred during inclement weather. They collected samples in labeled containers and had them analyzed for gross beta radionuclides, Iodine-131, gamma radionuclides and a quarterly composite tritium. GGNS personnel sampled surface water from the Mississippi River monthly at points upstream (control) and downstream (indicator) of the plant discharge (Figure 1-2 and Table 1-4). They collected samples in I l labeled containers and had them analyzed for gamma radionuclides and a quarterly composite tritium. GGNS personnel took an additional surface water sample from the GGNS Discharme Basin. They composited this sample monthly with an automatic sampler that collected a preset volume at hourly intervals. They 2-18

collected the sample in a labeled container and had it analyzed for gamma radionuclides and a quarterly composite tritium. GGNS personnel sampled aroundwater quarterly from two locations (Figure 1-2 and Table 1-4), Arnold Acres (indicator location) and Port Gibson City (controllocation), They collected samples in labeled containers and had them analyzed for gamma radionuclides and tritium, '1 2-19

Il ? !((!il! !lii fti fji[f fl:

f

~ 5 l 9 e 9 g 1 a r evA 49 e 9 n 1 Nesa B 3 5 9 8 9 9 1 s 1 t lus 2 e 9 R 9 e 1 m g r a u e r 4i t e t a v 1 - i sW A 9 2 r 9 0 eT la 1 t e 2 l r n uc n 2 ui sa ito gs ef ia r a F B Ru r 0 e 9 mS p 9 ee ue O 1 g r it 4 r a ir a 9 h Th 9 c 1 9 c s 8 s i 6 9 D D 8 1 i 9 1 889 l 1 789 1 A ICp 68 e 9 g 1 are vA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 la 0 0 0 0 0 0 0 0 0 0 0 0 u 2 1 0 9 8 7 6 5 4 3 2 1 1 1 1 nnA

i i 2.5 VEGETATION l l l t l l l l l l l l Note: Analytical results presented in Tables 5.1 through 5.4 of Attachment I and summarized in Section 4.0. l 4 2-21

2.5.1 Internretations and Trends of Results GGNS personnel collected vegetation samples and had them analyzed for gamma radionuclides and Iodine-131. As in preoperational and previous operational years, GGNS detected no plant-related radionuclides during 1995. 2.5.2 Program Description GGNS personnel collected broadleaf vegetation samples monthly for measurement of radioactivity by the ingestion exposure pathway, due to the unavailability of milk samples within five miles of GGNS. ODCM Specifications require samples of three different kinds of broadleaf vegetation grown nearest each of two different offsite locations with highest anticipated annual average groundlevel D/Q. i GGNS personnel met vegetation sampling requirements by maintaining I two gardens inside the SITE BOUNDARY, Sectors J and R. Due to updating the atmospheric deposition rates, GGNS personnel relocated the Sector R garden to Sector H during 1995. These sampling locations (Figure 1-2 and Table 1-5) provided a more conservative assessment of doses due to the higher deposition rates (D/Qs) than would be measured at offsite sampling locations. ODCM Specifications also require control samples of each of the similar types of onsite vegetation 15-30 km from the site. To fulfill this requirement, the ESP established a control vegetation sample location in Sector K at Alcorn I State University (Figure 1-3 and Table 1-5). The ESP prefers green-leafy vegetables suitable for human consumption as the primary source of broadleaf vegetation. At times, GGNS personnel took samples of any vegetation with relatively broad leaves on which airborne radioactive particulate material might be deposited, due to unavailability of green-leafy vegetables suitable for human consumption. They had the raw i samples analyzed for gamma radionuclides and Iodine-131. 2-22 i

i l 2.6 SEDIMENT 1 1 't i i I i i l 1-1 i i. Note: Analytical results presented in Table 8.1 of Attachment I and summarized in Section 4.0. 2-23

. = l 1 2.6.1 Interpretations and Trends of Results GGNS personnel collected sediment samples and had them analyzed l l for gamma radionuclides. The upstream Mississippi River location contained Cesium-137 during the preoperational years at a concentration of 200.0 pCi/kg and in previous operational years at an averaged concentration of 77.7 pCi/kg. In 1995, GGNS personnel also detected Cesium-137 once at a concentration of 8.0 pCi/kg. GGNS attributes the Cesium-137 detected during preoperational and operational years to past fallout from atmospheric weapons testing since this location is classified as a control and would not be affected by plant operations. In 1995, the downstream Mississippi River location (Hamilton Lake) 1 contained Cesium-137 at concentrations which ranged from 52.0 - 60.0 pCi/kg I i with a mean of 56.0 pCi/kg. This location also contained Cesium-137 during the preonerational and previous operational years at an average concentration 1 l of 2( ig and 82.9 pCi/kg, respectively. GGNS attributes this activity l l to ! sacspheric weapons testing, since the probability of this location being ) affected by plant operations is remote due to the enormous dilution and sedimentation factors involved with the Mississippi River. l l Table 2-2 provides an analytical results summary for 1987 through l 1995 barge slip sediment samples. GGNS personnel attributes the presence of this radioactivity to buildup of very small amounts of paniculates. This table shows a decrease in activity during 1995, and indicates that radionuclide i concentrations in barge slip sediment are stabilizing. Although, previous sampling of the barge slip sediment revealed a wide range of activity, GGNS ) personnel have found no definite correlation between radionuclide concentrations l and plant operating levels, efiluent releases or river elevation. l 2-24 l l

l l 2.6.2 Program Description GGNS personnel collected sediment samples semiannually at the following locations (Figure 1-2 and Table 1-5): r River shoreline in plant effluent discharge (Barge Slip) Downstream of the barge slip in the vicinity of the Hamilton Lake outfall(indicator location) Upstream from the GGNS discharge (Upper Grand Gulf Landing) ODCM Specifications require only a sediment sample from the downstream location (indicator). However, the ESP utilized additional samples from an upstream location (control) and the barge slip (indicator). GGNS personnel collected sediment samples near the shoreline from the top one-inch layer of sediment. They then discarded foreign objects and transferred the samples to clean, labeled containers for gamma radionuclide analyses. l i 2-25

TABLE 2-2 Barne Slio Sediment Analytical Summary

• Radionuclide 1987 1988 1989 1990 1991 1992 1993 1994 1995 Mean Mean Mean Mean Mean Mean Mean Mean Mean Manganese-54 2205.0 480.0 734.0 258.0 1252.0 164.0 1202.0 396.0

! !15 Iron-59 ND*

• ND" ND**

ND" ND" ND" 53.0 ND" ND" Cobalt-58 103.0 82.0 56.0 39.0 59.0 ND" 143.0 ND" 42.0 Cobalt-60 799.0 628.0 736.0 424.0 1171.0 294.0 949.0 411.0 245.0 Chromium-51 1454.0 777.0 199.0 853.0 307.0 ND** 471.5 ND" ND" Cesium-134 87.0 109.0 104.0 ND" ND" ND" ND" ND" ND" Cesium-137 189.0 142.0 159.0 124.0 145.0 76.0 117.5 84.5 82.5

• Units in picocuries/ kilogram
  • None detected 2-26

2.7 FISH Note: Analytical results presented in Tables 7.1 and 7.2 of Attachment I and summarized in Section 4.0 i 2-27 f i l

i i 2.7.1 InterDretations and Trends of Results GGNS personnel collected fish samples semiannually from two locations and had them analyzed for gamma radionuclides. Analytical results for fish in 1995, and previous preoperational and operational years, have shown no data which was attributable to the operation of GGNS. 2.7.2 Pronram Description GGNS personnel collected fish semiannually in the Mississippi River at the following locations (Figure 1-2 and Table 1-5): Downstream of the GGNS discharge point into the Mississippi River (indicatorlocation) Upstream of the GGNS discharge point into the Mississippi River uninfluenced by plant operations (control location). GGNS personnel collected fish by net, trotline, electroshock or purchased from commercial fishermen. They accompanied commercial fishermen, when purchasing samples, to ensure representative and valid samples from required locations. GGNS personnel collected a sufficient amount from each location to provide a minimum of 1000 grams (wet weight) of eviscerated fish sample. They had the samples analyzed for gamma radionuclides. 2-28 l

i i 2.8 SPECIAL SAMPLES I i i 2-29 l

2.8.1 Interpretations and Trends of Results In 1995, GGNS personnel collected six special samples and had them analyzed for gamma radionuclides and/or tritium. Discussion below provides descriptions of special samples collected and their results. Surface Water - One sample from Outfall 010 - Plant-related radionuclides not detected. Groundwater - One sample each from the North and South Construction Wells - Plant-related radionuclides not detected. Sedimenl-Two samples collected as follows: l - One sample from Basin A - Cesium-137 detected at a concentration of 18.0 pCi/kg. - One sample from Basin B - Manganese-54 and Cesium-137 detected at a concentration of 7.0 and 8.0 pCi/kg, respectively. Venison - One sample from the GGNS property - Plant-related radionuclides not detected. Results are summarized in Section 4.0. 2.8.2 Program Description GGNS personnel collected special samples occasionally from nonroutine ESP locations to provide supplementasy data and to address areas of special interests. Sample media may include sediment, water, milk, fish, meat and vegetation and may be analyzed for gamma radionuclides, lodine-131, tritium or gross beta radionuclides, depending upon current interest. 2-30

~'"'"-wa..,, l 2.9 ANNUAL LAND USE CENSUS l l l l l j 2-31 1

2.9.1 Interpretations and Trends of Results GGNS did not modify the ESP as result of the census, even though l some minor changes occurred from 1994 to 1995, as shown in Table 2-3. Also, the land use census identified no location which would yield a calculated dose or dose commitment greater than those currently being calculated. 1 The 1995 land use census results indicated land uses in the zero i to 5-mile area surrounding GGNS have remained basically the same as those reported in previous land use census results. Table 2-4 presents the 1995 land use census data sheets. 2.9.2 Pronram Descriptien GGNS personnel conducted an annual land use census as required by ODCM Specification 6.12.2. This census identifies changes in uses ofland in unrestricted areas surrounding GGNS which would require modifications to the ESP or ODCM. The land use census identified important criteria in each of the 16 meteorological sectors, such as nearest. Residence Animal milked for human consumption Garden of greater than 50 m (500 ft2) producing broadleaf vegetation. 2 GGNS personnel conducted the 1995 land use census by: Field surveys in each meteorological sector out to five miles in order e l to confirm: Nearest permanent residence j Nearest unoccupied residence Nearest garden and approximate size Nearest milking animal. 1 2-32

Identifying locations on map, measuring distances to GGNS and recordinF results on surveillance data sheets. Comparing 1995 census results to 1994 census results. Contacting the Claiborne County Agent for verification of nearest dairy animals. l i l l 2-33

TABLE 2-3 1994-1995 Land Use Census Channes Sector Parameter 1994 Data 1995 Data Reason for Change E Nearest Occupied Johnnie Hadad Hiram Wells Relocated after storm ewnt Residence 1.0

• 1.3
• H**

Nearest Broadicaf L. C. Jones Nathan Nobles New garden established l Garden 6.7* 6.0

• R Nearest Broadleaf GGNS None Relocated garden to Sector H Garden 1.6
• P Nearest Occupied Wallace Watson None Mowxl; house vacant Residence 7.7*

P Nearest Broadleaf Wallace Watson None Moved; garden abandoned Garden 7.7 *

• Distances in kilometers.
  • GGNS maintains a garden for vegetation sampling a this sector at 0.6 km.

2-34

b TABLE 2-4 1995 Land Use Census w Sector B Sector C Sector D Parammeter l Sector A i I. Nearest Occupied

a. Destance (km) 1.5 1.2 1.1 4.3 Realdence b.Name Henry Gesnes Mary J. Dotson Lanet Frazuer Ethel M. Ryals t

c. Address Rt 2 Box 391 Rt.2 Box 391 P.O. Box 33 Rt 2 Box 372B Port G6 son.MS Port Gibson.MS Port Gbson,MS Post Gbson,MS d Number of-ents 1

4 3 5 H. Nearest Useccupied

a. Distanu (ktn)

None None None None Reeldence HI. Nearest Milk Animal a.D-dance None None None None [ b OwrWs Name W. Nearest Broadleaf

a. Distana (km)

None None None 4.5 Garden

b. OwrWs Name John L Jackson

c. Address Rt. 2 Box 37tE c

Port G6 son.MS i 2

d. Garden see (m )

a200

v. Cesena Ceamparteen

a. Is nearest occupied residence in same location as last census?

Yes Yes Yes Yes 4

b. Is nearest truik animal in same location as last census?

N/A N/A N/A N/A

c. Is nearest broadleaf garden in same locahon as last census?

N/A NA MA Yes i i / I I 2-35 ~

TABLE 2-4 1995 Land Use Census Paranneter Sector E l Sector F Sector G Sector H I. Nearest Occupied

a. Destance (km) 1.3*

3.7 3.4 1.8 Residence b.Name Hram Wens Jerrel Smith David Buckner David Dowell

c. Address Rt2 %x 399A Rt.2 Box 216W Rt 2 Box 416A Rt.2 Box 414 Port Gibson.MS Port Gibson.MS Port Gbson.MS Port Gbson.MS d Number of occupants 2

1 4 5 II. Nearest Unoccupied

a. Distance (km)

None None 3.3 None Reeldence Hawthome House HL Nearest Milk Asianal a Distance None None None None b Owner's Name IV. Nearest Broadleaf a Destana (km) 1.3 None None 6 0*(1) Garden

b. Owner's Name Hiram Wens Nathan Nobles

c. Address Rt.2 Box 399A P.O. Box 811 Port Geson.MS Port G6 son.MS 2

d. Garden see (m )

= 100 =380 V. Census Comeparison

a. Is nearest occupied residence in same locaten as last census?

No Yes Yes Yes

b. Is nearest milk animalin same locabon as last unsus?

N/A N/A N/A WA

c. Is nearest broadleaf garden in same locaten as last census?

Yes N/A N/A No a

• Denotes changes since 1994 Census (1) GGNS maintains a garden in this sector for vegetation samphng at 0.6 km.

2-36 w

4 TABLE 2-4 1995 Land Use Censta r Paraeneter Sector J l Sectr r K Sector L Sector M I. Nearest Occupied

a. Distana (km) 5.0 3.5 1.4 None 3

ReeMence b.Name Steve Pnce Jun Casseu.Jr. Buddy Roddey i

c. Address Rt.1 Box 412D Rt 2 Box 404 Rt.2 Box 401 Port Gibson.MS Port G6 son.MS Port G6 son,MS d Number of occupants 2

4 4 II. Nearest Unoccupied

a. Distance (km) 3.8 None None None l

Residence (ban Casset House) t IH. Nearest Milk Ama-1

a. Distance None None None None

b. Owner's Name IV. Nearest Broadleaf

a. Destance (km) 06(1) 35 1.4 None r

Garden

b. Ownes's Name GGNS Jun CasseR.Jr.

Buddy Roddey

c. Address P.O Box 756 Rt.2 Box 404 Rt.2 Box 401 Port G6 son.MS Port G6 son.MS Port Gibson,MS 2

d. Garden sue (m )

=410 a400 =100 V. Cemens Counparison

a. Is nearnt occupeed resedenm in same locahon as last census?

Yes Yes Yes - WA

b. Is nearest milk ammalin same locahon as last census?

WA WA WA WA

c. Is nearest broadleaf garden in i

same locahon as last census? Yes Yes Yes WA (1) GGNS maintains this garden for wegetahon samphng No other gardens were located m this sector. L I t 2-37

5 [i i I'! j- [ l e I. t l S 9 M. R y0 e3n r d o e e e s A o x o 7. d o s n n n e / b 5 o o o Y N N o t Bi 1 R.2.G N N N c eS Ct rt RoP )p O q rra r e C e e o n

6. n n

n A A A M M M o o t o 5a c N N N t e a S cu Y ( )p m F a r *e C e e o t n

9. b n

n o A o c o 6b o o N M N e N o N N S C r. D( l s ) u p s m n N aC e r e e e 4 C o n

6. t n

n A A A r / / / o o o t o 2 N N N 2 e c N n N N s e s E U S k 8 c L u 3 B B d 2 ( n A a T L 59 9 1 ? n?s siu u ns s en nde ?ner c sil ca s uat gt s sf s tn d nmaaa a ee eni p 2 pmca l el 3 s sl s u ada c e e m uat a cs sknon ) m o m m )m m ) c ( c as or o ois mtibb nl k k a k a ez f N (N is s eatscsc t at a (a ( o e s r e s e ss e c neoeo c r n 'r s n c c s e r n rl r ee e ae o a e a l n ee b n n e e d ed he r a a n a a e md m md r nia nmnm r t t t iad u s tew r s s sc e iud a D N A. N D DO D O.A. G Iseos a a i s t si s rl I e m a. bc d a ab abc d a b c ar s a u P sneC 4 l 9 a d n n 9 1 e a f o i t a s e d p n e i c e u A l r m t c d a s p c h a p e o t o s s i r s e c n e M B o g c e Uc C an Oc n t t .a s e s sn t h s e ee u c s e ed r ed ri rd s s ri a s a ar as e e e ea n e t e o ee N R N NG C n NR L e L H H V D V I

Q h b i e T ht e t i a / a D / p g // A e r u u u h t t r an an h> g 1 g s i / i u S s s n e 4 C y n y s b o b 2 e a s i E U d t d 9 o t a e 3 L c c v B d Me o t p u o o 2 n d A a l r n p T L c n A 5 4 e / 9 s s d 9 t u e e s r w u 1 n p e e i C d v d n e a R a t s n l u t a a o n c i s a i t v e c f I_ e c i i d r n s f n e p e e i g r r c n i i f e n g s u d o f e i n s q e a f r S I n e r a n i e o r i o d f i u 3 s f 1 ] t t q i o i g a o e r N D [ [ l N R a u p c e Q]

m

] Q l r N o e D a m E C C D [ [ a I sn V e E m R a b I I I V V

TABLE 2-4 1995 Land Use Census Nearest residence in Sector E has changed from Johnny Hadad to Hiram Wells. The change o in distance is ~0.3 k.m. Because the Well's residence is located farther away than the former Hadad residence, a calculated dose or dose commitment greater than the value currently calculated in accordance with the ODCM does not exist and new calculations are not necessary. The Well's residence has also been evaluated in previous Land Use Census data because it maintains the nearest broadleaf garden in Sector E. During 1995, a GGNS broadleaf garden, used to satisfy radiological sampling requirements, o was relocated from Sector R to Sector H. This change was evaluated in GIN-95/00728. The L. C. Jones garden previously reported in Sector H, has been replaced by another garden 0.7 km closer to GGNS. The garden location currently used for dose calculations results in a higher dose commitment than either location in Sector H. 2-40

i i i 4 i SECTION 3.0 4 ANALYTICAL PROGRAM TECHNICAL DESCRIPTION 1 4 l j i J .i j 1

l 3-i

3.1 Sample liandline and Treatment The laboratory staff treats and stores samples upon receipt. Environmental samples frequently require treatment prior to analysis, depending on media and analyses type. 3.1.1 Water Samples Generally, field personnel acidify one-gallon water samples with concentrated hydrochloric acid when collected, unless otherwise directed by the analytical laboratory. Tritium samples for analyses are not usually stored in polyethylene bottles for more than three or four months because water can evaporate through polyethylene. 3.1.2 Air Filters The laboratory handled air filters with care during heavy dust loadings to avoid removing any particulate matter. They normally received air filters in plastic containers; the container as well as sample required analysis for some extremely low-level analyses. 3.1.3 Milk The laboratory refrigerated milk samples until analyzed. They added a preservative (formaldehyde), if analyses delayed for more than a few days, to inhibit bacterial growth and retard spoilage. Unless frozen or shipped on ice, milk samples analyzed for Iodine-131 require addition of 100 ml of formaldehyde, of which field personnel normally add 40 ml prior to shipment, to avoid binding of the iodine that may occur with smaller levels of formaldehyde. 3.1.4 Soil and Hottom Sediment The laboratory dried, pulverized and sieved soil and sediment samples before analysis. They then mixed the samples to ensure a homogeneous mixture. 3-1

t l 3.1.5 Other Samellu The laboratory preserved perishable samples by refrigeration or freezing. Vegetation and other samples may require drying, pulverizing or ashing before or after analysis for long-term storage. 6 3.2 Gross Beta Air Samnic Analysis The laboratory counted air filters for 100 minutes, or until required LLDs shown in ODCM Specification Table 6.12.1-3 were achieved, in a low-background alpha-beta counter at least 24 hours after collection to allow for decay of short-lived materials such as radon and thoron. 3.3 Gross Beta Water Sample Analysis This analysis measures overall beta radionuclides of water samples without identifying specific radioactive isotope present. This analysis involves evaporating a two hundred mi sample in a beaker and then drying beaker residue in a 2-inch stainless steel planchet at 100 C. The laboratory counted the planchets for 100 minutes, or until required LLDs shown in GGNS ODCM Specification Table 6.12.1-3 were achieved, in a low-background alpha-beta counting system. Activity calculation includes a self-absorption correction factor for counter efficiency based on weight of residue on each planchet. 3.4 Tritium Water Samnic Analysis The laboratory added five ml of water to 15 ml ofliquid scintillation solution in a 25 ml vial and then inserted the vial into a liquid scintillation spectrometer for a 300-500 minute count, or until required LLDs shown in GGNS ODCM Specification Table 6.12.1-3 were achieved. 3-2

1 4 l l 3.5 lodine-131 Sample Analysis The laboratory mixed up four liters or more of the sample with a stable ) iodine carrier solution and passed the sample through an anion exchange resin l column to remove iodine from the sample. The resin is then transferred to a 250 ml micro-Marinelli beaker and couated in a shielded intrinsic Germanium detector until the required LLDs shown in ODCM Specification Table 6.12.1-3 were achieved. If the shielded intrinsic Germanium detectors are not available, they would then strip the iodine from the resin with a sodium hypochlorite solution, reduce with hydroxylamine hydrochloride and extract into carbon tetrachloride as free iodine They then back-extract the free iodine into sodium bisulfite solution and ) precipitate as silver iodide. The laboratory mounted the precipitate on a stainless steel planchet and counted for 240 minutes, or until required LLDs shown in l ODCM Specification Table 6.12.1-3 were achieved, in a low-background alpha-beta counting system. 3.6 Gamma Isot0 Die Sample Analysis 3.6.1 Milk and Water The laboratory fills a 3.5-liter Marinelli beaker with a representative aliquot of the sample and counts for a minimum of 240 minutes, or until required LLDs shown in GGNS ODCM Specification Table 6.12.1-3 were achieved, in a shielded intrinsic Germanium detector coupled to a computer-based data acquisition system which performed a pulse height analysis. A computer software program defines peaks by certain changes in j slope of the spectrum. The program also compares energy of each peak with a library of peaks for radionuclide identification and then performs 3-3 1 1

calculation using appropriate fractional gamma ray abundance, halflife, detector efficiency and net counts in the peak region. 3.6.2 Venetation. Food and Garden Crops, and Fish The laboratory loads a maximum quantity of undried vegetation, food or garden crop sample into a tared 3.5-liter Marinelli beaker and weighs. They then count the sample for 60 minutes, or until required LLDs shown in GGNS ODCM Specification Table 6.12.13 were achieved, in a shielded intrinsic Germanium detector as described in Section 3.6.1. The laboratory loads as much as possible (up to the total sample) of the edible portion of a fish into a tared 1.0-liter or 3.5-liter Marinelli beaker, depending on fish quantity, and weighs. They diluted the sample with deionized water to weigh 3.5 kg and then counted for a minimum of 240 minutes in a shielded intrinsic Germanium detector as described in Section 3.6.1. 3.6.3 Soils and Sediments The laboratory dries soils and sediments at a low temperature (less than 100 C), loads into a tared 1.0-liter Marinelli beaker and weighs. I They then count the sample for 240 minutes, or until required LLDs shown in GGNS ODCM Specification Table 6.12.1-3 were achieved, in a shielded intrinsic Germanium detector as described in Section 3.6.1. 3.6.4 Charcoal Cartridnes The laboratory counts charcoal cartridges in a Marinelli beaker, with a maximum of six cartridges positioned on the side of a shielded intrinsic Germanium detector, for Iodine-131 screening purposes. They 3-4

calibrate each detector for both top and side positions and determine counting eHiciency. They determine the Iodine-131 detection limit for each charcoal cartridge, assuming no positive results for Iodine-131, by utilizing smallest volume of air recorded for a cartridge within the Marinelli beaker. The laboratory counts each charcoal separately, ifIodine-131 is observed in the screening count, by positioning on face of the detector. 3.6.5 Air Particulate The laboratory stacks 12 to 14 (depending on calendar quarter) air particulate filters for a quarterly composite for each field station one on top of another. They then count the samples for at least one hour, or until required LLDs shown in GGNS ODCM Specification Table 6.12.1-3 were achieved, in a shielded intrinsic Germanium detector as described in Section 3.6.1. 3.7 Thermoluminescent Dosimetry The GGNS ESP uses TLDs manufactured by Panasonic (Model UD-814). Although, these TLDs contain one lithium borate and three calcium sulfate phospor elements, onl'y the calcium sulfate phospor element results are used for reporting purposes. The laboratory anneals the TLDs prior to shipment. Upon arrival at GGNS, personnel sort and place designated TLDs in a plastic bag (two TLDs/ bag) prior to placing in field. The laboratory reads the TLDs, upon return from the field, in a Panasonic Model UD-710 TLD reader, 3-5

3.8 Data Reportine Conventions J The laboratory calculated meau of analytical results as follows: X = Xi / n where: _X = Mean Xi = Individual sample results n = Number of sample results i They rounded calculated values by inspection of digits to the right oflast reported digit, with values less than 5 rounded down and values greater than 5 rounded up. They rounded a reported value to an even number, when value equaled 5. The laboratory reported analytical results less than the 2 sigma counting error as less than LLD calculated for that sample. They reported analytical results greater than the sigma counting error along with associated 2 sigma counting error as a plus or minus ( ) term. The laboratory considers calendar quarters as the following time periods: 1st Quarter January - March = 2nd Quarter April - June = 3rd Quarter July - September = 4th Quarter October - December = 3-6

4h L, J-a.- + 4 A. a a um G-. o--- M j SECTION 4.0 ENVIRONMENTAL SURVEILLANCE PROGRAM

SUMMARY

4-i

i I l 4.1 1995 Proeram Results Summary Table 4-1 summarizes required ODCM Specifications, supplemental and special ESP sample results for 1995. Table 4-2 lists indicator and control I locations utilized to develop Table 4-1. GGNS personnel did not use values reported as less than (<) for determining indicator and control location ranges 2nd means. With exception of the elevated tritium levels in the discharge basin l surface water,1995 results compare to that encountered in previous years. I l I i l l 4-1 l l 4

TABLE 4-1 Environmental Monitorier Program Sumniary Name of Facility Grand Golf Nuclear Station Docket No. 50-416 Location of Facility Claiborne. Mississioni Repcrting Period January - December 1995 (County, State) Sansple Type Type & Number LIE b Indicator Locations Isocation with Highest Annual Mene Control Imcations Numberof - ( Units ) ofAnalyses Mensa ( F) C Mesa ( F) C Noornatine Results

• a I Range ]

[ Range ] I.mcationd Mesa ( F ) C I Range 1 Air Particulate GB 310 0 01 0 016 ( 202 / 206 ) AS-7 UII 0.018 ( 41 /41 ) 0.018 ( 104 / 104 ) 0 ( pCi/m3) [ 0.004 - 0.058 l ( Sector 11,0.5 mi ) [ 0.004 - 0.036 ] [ 0.006 - 0.039 ] GS 26 Cs-134 0.05 <LLD N/A N/A <LLD 0 Cs-137 0.06 <LLD N/A N/A <LLD 0 Airborne lodine I-131 310 0.07 <tLD N/A N/A <LLD 0 ( pCi/m3) Inner Ring TLDs Gamma 62 (0 19 S ( 61 /62 ) M-16 23.5 ( 3 / 3 ) N/A 0 ( mR/Qtr ) [ l3.5 -29.0 ) ( Sector A,0.9 mi) [20.5 -29.0 ] Outer Ring TLDs Gamma 59 (f) 19.1 ( 59 I59 ) M40 21.6 ( 4 /4 ) N/A 0 ( mR/Qtr) [14.0 -29.0 ] ( Sector M,5.0 mi ) [20.0 -23.5 ] SpecialInterest TLDs Gamma 26 (f) 19.3 ( 26/26 ) M 4)1 21.3 ( 4 /4 ) N/A 0 ( mR/Qtr) [ 17.0 - 22.5 ] ( Sector E,3.5 mi ) [ 20.0 - 22.5 ] Control TLDs Gamma 4 (f) N/A M/A N/A 20.8(4 /4 ) 0 ( mR/Qtr ) [20.0 -21.5 ] Protected Area TLDs Gamma 63 (f) 29.0 ( 63 /63 ) M-69 60.8 ( 4 /4 ) N/A 0 ( mR/Qtr ) [ 14.5 - 81.0 j ( Sects G, Onsite ) [ 28.0 - 81.0 ] 4-2 I

TABLE 4-1 t Envirwomental Monitorier Program Summary Name of Facility Grand Gulf Nutlear Station Docket No. 50-416 Location of Facility Claiborne. Mississippi Reporting Period January - December 1995 (County, State) Sample Type Type & Number LLDb Indicator Locations Imcation with Highest Annual Mean Control Locations Number of [ ( Units ) ofAnalyses y,,,(y)c y,,,(y)c Nonroutine Results

• a

[ Range ] [ Range ] [ Locath d Mean ( F) C I Range 1 t Cistern Water GB 24 4 5.9 ( 7 / 12 ) Grand Gulf Road

• 6.1 ( l /1 )

2.7 ( 6 /12 ) 0 ( pCi/l) [ 1.5 - 22.1 ] ( Sector E,0.7 mi ) [ N/A ] [ 1.5 - 4.1 ] 1 1-131 24 1.0 <LLD N/A N/A <LLD 0 i 11-3 9 2000 <LLD N/A N/A <LLD 0 GS 24 Mn-54 15 <LLD N/A N/A <LLD 0 Fe-59 30 <LLD N/A N/A <LLD 0 Co-58 15 <LLD N/A N/A <LLD 0 Co40 15 <LLD N/A N/A <LLD 0 Zn-65 30 <LLD N/A N/A <LLD 0 Zr-95 30 <LLD N/A N/A <LLD 0 Nb-95 15 <LLD N/A N/A <LLD 0 Cs-134 15 <LLD N/A N/A <LLD 0 Cs-137 18 <LLD N/A N/A <LLD 0 Ba-140 60 <LLD N/A N/A <LLD 0 La-140 15 <LLD N/A N/A <LLD 0 I

• Alternate location for McGee cistern during the month of May only.

4-3 y ~, - m r

TABLE 4-1 Enrimamental Monitorine Pmeram Summary Name of Facility Grand Gulf Nuclear Station Docket No. 50-416 Location of Facility Claiborne, Mississippi Reporting Period January - December 1995 (County, State) Sample Type Type & Number LLD b-Indicatorlocations. Imcation with Highest Annual Mean Control Iecations . Number of ( Units ) of Analysec y,,,(p)c ye,(y)c Nonroutine Results

• a

[Rangej [ Range ] d 1mcation Mean ( F).C [ Range i i Surface Water II-3 12 2000 7100.0 ( 5 / 8 ) Discharge Basm 8815.0 ( 4 /4 ) <LLD 4 ( pCill ) [ 240.0 -11430.0 ] ( Sector P,0.2 mi ) [ 5470.0 - 11430.0 ] GS 36 Mn-54 15 3.0 ( l / 24 ) Discharge Basin 3.0 ( l /12 ) <LLD 0 [ N/A ] ( Sector P,0.2 mi ) [ N/A ] Fe-59 30 <LLD N/A N/A <tLD 0 Co-58 15 <LLD N/A N/A <LLD 0 Co-60 15 6.7 ( 9 /24 ) Discharge Basin 6.7 ( 9 / 12 ) 2.0 ( l / 12 ) 0 [ 3.0 - 14.0 ] ( Sector P,0 2 mi ) [ 3.0 - 14.0 ) [ N/A ] Zn-65 30 <LLD N/A N/A <LLD 0 Zr-95 30 <LLD N/A N/A <LLD 0 Nb-95 15 <LLD N/A N/A <LLD 0 Cs-134 15 <LLD N/A N/A <LLD 0 Cs-137 18 <LLD N/A N/A <tLD 0 Ba-140 60 <LLD N/A N/A <LLD 0 La-140 15 <LLD N/A N/A <LLD 0 4-4

TABLE 4-1 Environmental Monitoring Program Summary i Name of Facility Grand Gulf Nuclear Station Docket No. 50-416 Location of Facility Claiborne. Mississippi Reporting Period January - December 1995 (County, State) Sample Type Type & Number LLD b ! Indicator locations Location with Highest Annual Mean Control Iocations Number of ( Units ) ofAnalyses y,,,(y)c Mesa ( F) c Nooroutine Results

• a

[ Range ] [ Range ] d Location Mean ( F) C [ Range 1 Special GS 1 Surface Water Mn-54 15 <LLD N/A N/A N/A 0 ( pCill ) Fe-59 30 <LLD N/A N/A N/A 0 L Co-58 15 <LLD N/A N/A N/A 0 Co40 15 <LLD N/A N/A N/A 0 7m45 30 <LLD N/A N/A N/A 0 Zr-95 30 <LLD N/A N/A N/A 0 Nb-95 15 <LLD N/A N/A N/A 0 Cs-134 15 <LLD N/A N/A N/A 0 l Cs-137 18 <LLD N/A N/A N/A 0 [ lh-140 60 <LLD N/A N/A N/A 0 La-140 15 <LLD N/A N/A N/A 0 i 4-5 t

TABLE 4-1 Environmental Monitorier Prorram Summary Name of Facility Grand Gulf Nuclerr Station Docket No. 50-416 Location of Facility Claiborne. MississiDDi Reporting Period January - December 1995 (County, State) Semple Type Type & Numeber LLDb Indicator Incations Imcation with Highest Aeneal Mean Control Imcations Number of ( Units ) of Analyses y,3,, g p ) c g,(p)c Nooroutine Results

• a l Ray } ~~

[ Range l Imcationd Mesa ( F) C [ Rasse 1 f Well Water II-3 8 2000 <LLD N/A N/A <tLD 0 (PCid ) GS 8 i Mn-54 15 <LLD N/A N/A <LLD 0 Fe-59 30 <LLD N/A N/A <LLD 0 Co-58 15 <LLD N/A N/A <LLD 0 CM4 15 <LLD N/A N/A <LLD 0 Z.n-65 30 <LLD N/A N/A <LLD 0 Zr-95 30 <LLD N/A N/A <LLD 0 Ni>-95 15 <LLD N/A N/A <LLD 0 Cs-134 15 <LLD N/A N/A <LLD 0 Cs-137 18 <LLD N/A N/A <LLD 0 Ba-140 60 <LLD N/A N/A <LLD 0 La-140 15 <LLD N/A N/A <LLD 0 i 4-6

TABLE 4-1 Environmental Monitorine Pronram Summan-Name of Facility Grand Gulf Nuclear Station Docket No. 50-416 Imation of Facility Claiborne. Mississioni Reporting Period Januan - December 1995 (County, State) Sample Type Type & Nuniber LLDb Indicator Locations Imcation with Highest Annual Mesa Control Incations Number of ( Units ) ofAnalyses y,,, ( y ) c. Mean ( F ) C ' Nearcatine Results

• a

[ Range j [ Range ] Locationd Mesa ( F) C I Range 1 Special 11-3 2 2000 <LLD N/A N/A N/A 0 Well Water ( pCUI ) GS 2 Mn-54 15 <LLD N/A N/A N/A 0 Fe-59 30 <LLD N/A N/A N/A 0 Co-58 15 <LLD N/A N/A N/A 0 [ Co40 15 <LLD N/A N/A N/A 0 Zn-65 30 <LLD N/A N/A N/A 0 Zr-95 30 <LLD N/A N/A N/A 0 Nb-95 15 <LLD N/A N/A N/A 0 Cs-134 15 <LLD N/A N/A N/A-0 Cs-137 18 <LLD N/A N/A N/A 0 Ba-140 60 <LLD N/A N/A N/A 0 La-140 15 <LLD N/A N/A N/A 'O Milk I-131 2 1.0 N/A N/A N/A <LLD 0 (PCill ) GS 2 Cs-134 15 N/A N/A N/A <LLD 0 Cs-137 18 N/A N/A N/A <LLD 0 Ba-140 60 N/A N/A N/A <LLD 0 l La-140 15 N/A N/A N/A <LLD 0 e 4-7

.~. ~. { TABLE 4-1 Environmental Monitoring Program Summary I Name of Facility Grand Gulf Nuclear Station Docket No. 50-416 Location of Facility Claiborne. Mississioni Reporting Period January - December 1995 (County, State) t Sample Type . Type & Number LLD b Indicator Imcations Location with Highest Anaust Mean Centrol locations Number of i ( Units ) ofAnalyses Mesa ( F) C Mesa ( F )

• Nonroutine Results
• a

[ Range ] [ Range ] l Imcationd y,,,(p)c I Range 1 ( Vegetation I-131 108 60 <LLD N/A N/A <LLD l 0 (PCi/kg wet ) GS 108 Cs-134 60 <LLD N/A N/A <LLD 0 Cs-137 80 <LLD N/A N/A <LLD 0 Fish GS 4 ( pCi/kg wet ) Mn-54 130 <LLD N/A N/A <LLD 0 i Fe-59 260 <LLD N/A N/A <LLD 0 Co-58 130 <LLD N/A N/A <LLD 0 Co40 130 <LLD N/A N/A <LLD 0 Zn45 260 <LLD N/A N/A <LLD 0 Cs-134 130 <LLD N/A N/A <LLD 0 Cs-137 150 <LLD N/A N/A <LLD 0 l l 4-8 L k k .m

i TABLE 4-1 Environmental Monitorine Piuram Summary I Nanic of Facility Grand Gulf Nuclear Station Docket No. 50-416 i Location of Facility Claiborne Mississippi Reporting Period January - December 1995 (County, State) Sample Type Type & Number LLD b Indicator Locations IAcation with Highest Aneuel Mesa Control Imcations Number of ( Units ) of Analyses

• Mesa ( F) C Mesa ( F ) C Nouroutine ResultsC

[ Range j [ Range J Incation d Mesa ( F) C [ Range 1 Bottom GS 6 Sediment ( pCi/kg dry ) Mn-54 (f) 148.5 ( 2 /4 ) Barge Slip 148.5 ( 2 /2 ) <LLD 2 [21.0 -276.0 ] ( Sector Q,1.5 mi ) [ 21.0 - 276.0 ] Fe-59 (f) <LLD N/A N/A <LLD 0 Co-58 (f) 42.0 (l/4 ) Barge Slip 42.0 ( l / 2 ) <LLD 0 [ N/A ] ( Sector Q,15 mi ) [ N/A ] Co-60 (f) 245.0 ( 2 /4 ) Barge Slip 245.0 ( 2 / 2 ) <LLD 1 [17.0 -473.0 ] ( Sector Q,1.5 mi ) [17.0 -473.0 ) Cr-51 (f) <LLD N/A N/A <LLD 0 Cs-134 150 <LLD N/A N/A <LLD 0 Cs-137 180 69.3 ( 4 /4 ) Barge Slip S2.5 ( 2 / 2 ) 8.0 ( l / 2 ) I [ 39.0 -126.0 ] ( Sector Q,1.5 mi ) [ 39.0 - 126.0 ] [ N/A ] 4-9

TABLE 4-1 Environmental Monitorier Pronram Summary Name of Facility Grand Gulf Nuclear Station Docket No. 50-416 Location of Facility Claiborne. Mississippi Reporting Period January - December 1995 (County, State) l Sample Type Type & Number LLD b Indicator I.mcations . Location with Highest Annual Mean Control Imations Number of ( Units) of Analyses

• Mean ( F) C Mean ( F ) C Nonroutine Results *

[ Range ] [ Range 1 Imcationd Mean ( F ) C [ Range 1 Special GS 2 Bottom Sediment ( pCi/kg dry) Mn-54 (f) 7.0 ( l / 2 ) Basin B 7.0 ( l / I ) N/A 0 t [ N/A ] ( Sector M,0.3 mi ) [ N/A ] Fe-59 (f) <LLD N/A N/A N/A 0 Co-58 (f) <LLD N/A N/A N/A 0 Co40 (O <LLD N/A N/A N/A 0 Cr-51 (0 <LLD N/A N/A N/A 0 Cs-134 150 <LLD N/A N/A N/A 0 I-Cs-137 180 13.0 ( 2 /2 ) Basin A I8.0 ( l / I ) N/A 0 [ 8.0 - 18.0 ] ( Sector R,0.3 mi ) { N/A ] Special GS I Venison Mn-54 130 <LLD N/A N/A N/A 0 t ( pCi/kg wet ) Fe-59 260 <LLD N/A N/A N/A 0 Co-58 130 <LLD N/A N/A N/A 0 Co-60 130 <LLD N/A N/A N/A 0 Zn-65 260 <LLD N/A N/A N/A 0 Cs-134 130 <LLD N/A N/A N/A 0 t Cs-137 150 <LLD N/A N/A N/A 0 4-10

TABLE 4-1 Environmental Monitorine Program Summary Name of Facility Grand Gulf Nuclear Station Docket No. 50-416 - Location of Facility Claiborne. Mississir.;,; rL porting Period January - December 1995 (County, State) D GB = Gross beta; I-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan. b LLD = Required lower limit of detection based on Grand Gulf Nuclear Station ODCM Specification Table 6.12.1-3. c Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (F). d Locations are specified (1) by name and (2) sector relative to reactor site. e Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine ifit exceeds ten times the preoperational value for the location. I LLD not defined in GGNS ODCM Specification Table 6.12.1-3. i 4-11

e TABLE 4-2 Indicator & Control Locations Sample Locations Total Total & Type Type Samples Analyses Air Indicators - AS-4 GJOE

• 12 12 ea. - Gross Beta,1-131; l-Gamma AS-5 TC 52 52 ea. - Gross Beta, I-131; 4-Gamma AS-6 RS
• 12 12 ea. - Gross Beta,1-131; l-Ganuna AS-6 BF 41 41 ea. - Gross Beta,1-131; 3-Gamma AS-7 MT
• 12 12 ea. - Gross Beta, J-131; l-Gamma AS-7 UH 41 41 ea. - Gross Beta, I-131; 3-Gamma AS-8 WR
• 12 12 ca. - Gross Beta, I-131; l-Gamma AS-10 HR
• 12 12 ca. - Gross Beta,1-131; l-Gamma AS-11 BB
• 12 12 ea. - Gross Beta, I-131; l-Gamma e

Controls - AS-1 PG 52 52 ea. - Gross Beta, I-131; 4-Gamma AS-3 61VA 52 52 ea. - Gross Beta, I-131; 4-Gamma TLDs e Indicators Inner Ring M-16,17,19, 20, 'U. 22, 23,25,27,28,41,45,86, 92,93,94 62 62-Gamma Outer Ring M-36, 40, 47, 48, 49,50, 51,55,56,57,58,59,88, 89,90,91 59 59-Gamma SpecialInterest Areas M-01, 07, 09,10, 33, 38, 39 26 26-Gamma e Control - M-14 4 4-Gamma e Indicators Protected Area

• M-61, 62, 63, 64, 65, 66, 67,68,69,70,71,72,74, 76,77,81 63 63-Gamma a Not required by ODCM Specifications 4-12 l

1

- ~ _ _ _ _ _ _ TABLE 4-2 Indicator & Control Locations Sample Locations Total Total & Type Type Samples Analyses I Water Cistern e Indicators-McGee 11 11 ca. - Gross Beta, I-131, Gamma; 4-Tritium Grand Gulf Road

• 1 1 ca. - Gross Beta,1-131, Gamma; l-Tritium

. Control-Willis 12 12 ca. - Gross Beta, I-131, Gamma; 4-Tritium Surface . Indicators - Downstream Ms. River 12 4-Tritium; 12-Gamma Discharge Basin 12 4-Tritium; 12-Gamma Outfall 010

• 1 1-Gamma e Control - Upstream Ms. River 12 4-Tritium; 12-Gamma Groundwater

. Indicators - Arnold Acres 4 4 ca. -Tritium, Gamma N. Construction Well

• 1 1 ea. - Tritium, Gamma S. Construction Well
• 1 1 ea. - Tritium, Gamma e Control - Port Gibson City 4

4 ea. - Tritium, Gamma Milk e Indicator - None N/A N/A e Control-Alcorn State University 2 2 ca. - I-131, Gamma Vegetation e Indicators - Sector H Garden 18 18 ea. 131, Gamma Sector J Garden 36 36 ca. - I-131, Gamma Sector R Garden 18 18 ea. - I-131, Gamma e Control-Sector K (Alcorn 36 36 ca. - I-131, Gamma l State University) Indicator - Downstream Ms. River 2 2-Gamma l Fish e e Control - Upstream Ms. River 2 2-Gamma

• Not required by ODCM Specifications 4-13 j

f TABLE 4-2 Indicator & Control Locations Sample Locations Total Total & Type Type Samples Analyses Sediment . Indicators - Hamilton Lake (SEDHAM) 2 2-Gamma Barge Slip (SEDBAR)

• 2 2-Gamma Basin A
• 1 1-Gamma Basin B
• 1 1-Gamma Control - Upstream Ms. River (SEDCONT)
• 2 2-Gamma e

Venison Indicator - GGNS Property

• 1 1-Gamma
• Control - None N/A N/A
• Not required by ODCM Specifications 4-14

SECTION 5.0 QUALITY CONTROL DATA I 5-i

i 5.1 Crosscheck Pronram Results l l ESI System Chemistry analyzed EPA crosscheck samples for GGNS. Attachment I contains these results. ESI System Chemistry's analysis participation, shown in Figure 5-1, indicates that the laboratory achieved an 82% (18 of 22) acceptance on intercomparison sample analyses. The laboratory determined that the four unacceptable analysis results, which involved Cobalt-60, Zinc-65, Cesium-137 and Barium-133 gamma radionuclides, was associated with a dilution error that occurred during sample preparation. Their conclusion was based on results being 14 - 33% higher than those reported by EPA and no appreciable differences in the detector efficiency curves during re-verification. This dilution error did not affect the validity of i GGNS' 1995 gamma spectroscopy data. The EPA crosscheck table shown in Attachment I provides additional explanation. GGNS personnel also included, as part of Figure 5-1, a corrected graph of ESI's intercomparison results that was reported in the 1994 AREOR. Although the percentage of acceptable analyses did not change, acceptable analyses should ha;e been 19 instead of 18. 5.2 Duplicate Samples Attachment I contains duplicate samples, identified by suffix "GG" accompanying the laboratory number, submitted by GGNS to ESI System Chemistry for analysis. Attachment II contains duplicate TLDs submitted to the Waterford3 Dosimetry Section. Summary below identifies sample media j duplicated. 5-1

l l Sample Media Samples DUDlicated Table No. Cistern Water 6 2.1 - 2.6 Groundwater 2 3.1 & 3.2 Surface Water 11 4.1 - 4.6 Vegetation 12 5.1 - 5.4 Milk 1 6.1 Fish 2 7.1 & 7.2 Sediment 3 8.1 TLDs 11 4 (Attachment II) GGNS personnel's review of duplicate sample results indicates that ESI and Waterford3 provide consistent and valid data based on similarity of results. 5-2

i l l ? i i I l Figure 5-1 f l EPA Intercomnarison Study l t EPA Interlaboratory Comparison ) Results for 1995 t l, i r 1 18 % t n;: I .I,r-m.; s s s... -isie } ^ s s t I gg?; ' O Acceptable Analyses (18)

• gs

gwp s

s E Unacceptable Analyses (4) s i.n.,.. e....r. .i.:n.. s l rm. :- s hl ' i l} hf. g' L i ':..

• Within the three standard deviation range.

s s s j 4rn s s

g t

s s s ilic;ssi x ' ""- ' s s s s s HKY/[5D f g g. - s s l s s .y. s 82 % T1 m 4 f L t 5-3 i .I l r

i l r i e i l l l t r L Figure 5-1 EPA IntercomD8FiSon Study I (Corrected 1994 AREOR Graph) t i { t EPA Interlaboratory Comparison Results for 1994 f: 5% ) vu s + W g I a ).[,,i t =

r n.i m

s s m m' s ~' l s s s s s O Acceptable Analyses (19) * [ l ,.. g3 , s E l s m.. s sm

=

s s E Unacceptable Analyses (1) { mm m s l s I' ^s e s s s ...'!9Es j N .a l

p.q(

Ribi!L. ' Jni 'Vithin the three standard deviation range. s-s e s s. y: g+ s s s q li pp 'i,6 'i! .i M:L M& Si -~ s g. y l s- " w:: 5 i b2i s <uy ' ' 'iN i S-4 t i i I L.. l

5 m-" a +_a4 --.a..-Ja. -..a. _a- 'A ,ue m w,-.- a j SECTION 6.0 1995 SAMPLING AND ANALYTICAL RESULTS 0-i

e i 6.1 1995 Data I Attachments I and II present data obtained by ESI System Chemistry and Waterford3 Dosimetry Section on samples collected from January through December 1995. ESI System Chemistry provides data in monthly progress reports. Waterford-3 Dosimetry Section provides TLD data in quarterly reports. With exception of elevated tritium levels in the discharge basin surface water, i data presented in Attachments I and II compare to that encountered in preoperational and previous operational years. l l 6.2 Lower Limit of Detection i ESI System Chemistry routinely counts lower than the maximum LLD l required by ODCM Specification Table 6.12.1-3. Factors such as unavoidable small sample size, background fluctuations, presence ofinterfering radionuclides l l l or other uncontrollable circumstances cause ODCM Specifications' LLDs to be l unachievable in some instarices. However, GGNS personnel's review of 1995 results indicates acceptable LLDs within required ODCM Specification limits. 6.3 Reportine Levels GGNS' review indicates that no samples equaled or exceeded reporting ] levels for radioactivity concentration in environmental samples, as outlined in ODCM Specifications Table 6.12.1-2 when averaged over any calendar quarter, due to GGNS effluents. Therefore,1995 results did not trigger any Radiological Monitoring Program Special Reports. 6.4 Samoline Deviations The required ODCM Specification LLD value of 0.01 pCi/m3 was not achieved at air sampling station AS-5 TC during the sampling periods of December 28,1994 - January 3,1996, January 17,1996 - January 24,1996 and March 14 - 21,1996, due to low sample volume caused by equipment { 6-1

malfunctions. To prevent this incident from recurring, GGNS personnelincreased visual observations for this sampler location to ensure that an operable unit was maintained at all times. GGNS personnel did not collect a May 1995 cistern water sample at the McGee location due to a holding tank leak that developed as a result of hail damage. However to meet ODCM Specification requirements, they did sample an alternate location near the site. In addition, GGNS repaired the McGee cistern and sampling resumed at this location in June 1995. The ESP lost nine TLDs required by ODCM Specifications during 1995, due to vandalism or flooding from the Mississippi River. Other TLD programs experience losses of this type. In 1995, GGNS personnel calculated a 94% (151 of 160) recovery rate for required ODCM Specification TLDs, which compares with other TLD programs. In addition, as a result of water damage, 1 GGNS personnel noted that results from seven TLDs required by ODCM Specifications were not representative of historical readings or previous quarters. Water damage normally occurs during seasonal flood waters and/or humid conditions. Water damage is a typical problem incurred by other TLD programs located in similar geographical regions and climatic conditions. The ESP did not include milk sampling within five miles (8 km) of GGNS in 1995 due to unavailability. Therefore, GGNS personnel continue to sample the Alcorn State University Control location semiannually until such time that milk samples become available within five miles (8 km) of GGNS. They collected vegetation samples to monitor the ingestion pathway, as specified in ODCM Specifications Table 6.12.1-1, because of milk unavailability. GGNS personnel conducted all other ESP activities required by ODCM Specification without exception. 6-2

l 6.5 Radioactivity Not Attributable To GGNS The GGNS ESP detected radioactivity attributable to other sources twice. l These include the 25th Chinese nuclear test explosion in 1980, and the radioactive plume release due to reactor core degradation at Chernobyl Nuclear Power Plant in 1986. 6.6 Sampline Relocation Although vegetation and milk sampling locations did not change in 1995 due to unavailability, GGNS did make modifications to the ESP as a result of updating the atmospheric deposition rates and evaluation of historical data from supplemental locations. These changes involved the following: Relocated air sampling stations AS-6 RS (Sector C, Radius 0.5 miles) and AS-7 MT (Sector A, Radius 0.9 miles) to AS-6 BF (Sector K, Radius 0.4 miles) and AS-7 UH (Sector H, Radius 0 5 miles), respectively. Relocated Sector R garden to Sector H. Discontinued supplemental air sampling stations AS-4 GJOE, AS-8 WR, AS-10 HR and AS-11 BB. l Since milk and vegetation samples continued to be available as required by the ODCM Specifications, GGNS personnel did not identify any new locations or report circumstances of unavailability in the Annual Radioactive Efiluent Release Report. l 6.7 Comparison To Federal and State Pronrams GGNS personnel compared GGNS data to federal and state monitoring programs as results became available. The programs used for comparison include the U.S. Nuclear Regulatory Commission (NRC) TLD Direct Radiation 6-3 1

Monitoring Network and the Mississippi State Department of Health (MSDH), Division of Radiological Health. l The latest available NRC TLD Network results compare to those from l the GGNS ESP. In addition, as shown in Section 2.2 of this report, GGNS and NRC TLDs produced similar results on the average. The MSDH and the GGNS ESP entail similar radiological environmental monitoring program requirements. These programs include collocated air samples l l and splitting or sharing sample media such as vegetation, water, sediment, meat, fish and milk. Both programs have obtained similar results over previous years. l In 1995, and as in previous years, the MSDH and GGNS detected radioactivity 1 attributable to plant effluent in the barge slip. 6.8 Unavailable Results GGNS received analytical contractor results in adequate time for inclusion l in this report. In addition, GGNS' review identified no missing results. 6.9 Harmful Effects or Irreversible Damane The ESP monitoring did not detect any harmful effects or evidence of 1 irreversible damage in 1995. Therefore, GGNS personnel addressed no problems. l l l i 6 6-4 - i

Attachment i 1995 Environmental Sampling and Analytical Report I-i

/ GRAND GULF RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT DECEMBER 1995 l i l 1 \\ l l l i PREPARED BY: SYSTEM CHEMISTRY SECTION ENTERGY SERVICES, INC. 1 4

GRAND GULF i RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE OF CONTENTS PAGE

SUMMARY

OF MONITORING RESULTS I DATA TABLES: AIR SAMPLES 2 1 CISTERN WATER 20 l GROUND WATER. 26 SURFACE WATER 28 j i VEGETATION: BROADLEAF 34 MILK 40 FISH 41 SEDIMENT 43 EPA CROSS CHECK RESULTS 44 .?

l l Summary of Monitoring Results Duplicate Samples The term "GG" ending of a lab number denotes a duplicate sample. Radionuclides Detected Manganese-54, Cobalt-60 and Tritium were detected in the discharge basin surface water during this reporting period. Manganese-54, Cobalt-58, Cobalt-60 and Cesium-137 were detected in the barge slip sediment during this reporting period. I Cesium-137 was detected in the Hamilton Lake outfall sediment during this reporting period. Radiolonical Environmental Monitorine Proeram Modifications Air sample locations AS-4 (GJOE), AS-6 (RS), AS-7 (MT), AS-8 (WR), AS-10 (HR) and AS-11 (BB) were discontinued after March 21,1995. The broadleaf vegetation garden located in Sector R at 1.2 kilometers was discontinued in June 1995 and replaced by a garden in Sector H at 0.64 kilometers. Air sample locations AS-6 (BF) and AS-7 (UH) were added on March 14,1995. Sampline Deviations The required lower limit of detection value of 0.01 pCi/m' was not achieved for the following air sample locations: Location Sample Run Time Comment Period (Hrs) AS-5 (TC)

• 12/28/94 - 01/03/95 16.25 Pump failure resulted in low sample volume 01/17/95 - 01/24/95 30.8 Pump failure resulted in low sample volume 03/14/95 - 03/21/95 5.92 Breaker tripped
• Required by ODCM Specifications.

l l PAGE1 i l

-. - -. = _ l Cistern water was not collected for the month of May at the McGee location due to a leak that developed in the holding tank from hail damage. The leak was repaired upon discovery and a sample was collected from it in June. To meet ODCM Specification requirements, an alternate location near the site was sampled for the month ofMay. The following air sample locations had short run times or no flow at collection due to equipment malfunctions or weather related incidences: i l Location Sample Run Time Comment l Period (Hrs) l AS-3 (61VA)

• 05/02/95 - 05/09/95 166.5 Inclement weather 06/20/95 - 06/27/95 No flow at collection 11/21/95 - 11/28/95 165.67 Blown fuse AS-5 (TC)
• 02/28/95 - 03/07/95 163.53 Blown fuse 03/07/95 - 03/14/95 134.22 Breaker tripped 03/21/95 - 03/28/95 121.92 Breaker tripped 04/18/95 - 04/25/95 53.8 Breaker tripped 05/02/95 - 05/09/95 25.21 Breaker tripped 05/16/95 - 05/23/95 75.14 Inclement weather 05/23/95 - 05/31/95 No flow at collection 09/26/95 - 10/03/95 61.75 Mechanical failure 10/17/95 -10/24/95 112.38 Mechanical failure AS-7 (MT)
• 03/07/95 - 03/14/95 164.5 Mechanical failure AS-10 (HR) 02/28/95 - 03/07/95 No flow at collection 03/07/95 - 03/14/95 163.92 Mechanical failure AS-6 (BF)
• 05/02/95 - 05/09/95 161.3 Inclement weather 05/16/95 - 05/23/95 74.09 Inclement weather 05/23/95 - 05/31/95 No flow at collection 07/05/95 - 07/11/95 90.45 Blown fuse 07/18/95 - 07/25/95 110.31 Breaker tripped 07/25/95 - 08/01/95 107.2 Breaker tripped 08/08/95 - 08/15/95 127.32 Breaker tripped 08/15/95 - 08/22/95 130.2 Breaker tripped 08/22/95 - 08/29/95 149.10 Breaker tripped 09/06/95 - 09/12/95 95.38 Breaker tripped 09/19/95 - 09/26/95 154.42 Breaker tripped 10/24/95 - 10/31/95 71.92 Mechanical failure 11/07/95 - 11/14/95 113.75 Breaker tripped 11/21/95 -11/28/95 136.42 Breaker tripped AS-7 (UH)
• 05/02/95 - 05/09/95 161.3 Inclement weather 05/16/95 - 05/23/95 55.3 Inclement weather 05/23/95 - 05/31/95 No flow at collectice

=

• Required by ODCM Specifications.

PAGEIa

+ RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 1.1 SAMPLE: AIR SAMPLES,(BETA,1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE UNITS: pCM LOCATION: AS-1,PG LAB NO. BEGIN DATE END DATE GROSS BETA l-131 REQ'D LLD 0 01 0 07 9500002 12/28/94 01/03/95 0.025 +1-0.003 < 0.020 9500413 01/03/95 01/10/95 0.019 +/-0.002 < 0.018 9500914 01/10/95 01/17/95 0.014 +/-0.002 <0.015 9501259 01/17/95 01/24/95 0.006 +/-0.002 <0.014 9501675 01/24/95 01/31/95 0.013 +/-0.002 <0.013 9502183 01/31/95 02/07/95 0.014 +/-0.002 < 0.011 9502863 02/07/95 02/1495 0.015 +/-0.002 < 0.014 9503285 02/14/95 02/21/95 0.015 +/-0.002 < 0.011 9503658 02/21/95 02/28/95 0.012 +1-0.002 < 0.016 950419e 02/28/95 03/07/95 0.013 +/-0.002 <0.027 9504506 03/07/95 03/14/95 0.015 +/-0.002 < 0.017 9505210 03/14/95 03/21/95 0.008 +/-0.002 <0.015 9505626 03/21/95 03/28/95 0.014 +/4.002 <0.019 9506103 03/28/95 04/04/95 0.012 +f-0.002 < 0.017 9506785 04/04/95 04/11/95 0.011 +/-0.002 < 0.021 9507421 04/11/95 04/18/95 0.014 +/-0.002 <0.019 9507983 04/18!95 04/25/95 0.012 +/-0.002 <0.049 9508512 04/25/95 05/02/95 0.021 +/-0.002 <0.017 9509207 05/02/95 05/09/95 0.015 +/-0.0G2 < 0.046 9509550 05/09/95 05/16/95 0.013 +1-0.002 <0.012 9510168 05/16/95 05/23/95 0.013 +/-0.002 < 0.042 9510597 05/23/95 05/31/95 0.016 +/-0.002 <0.025 9511049 05/31/95 06/06/95 0.016 +/-0.002 < 0.023 9511814 06/06/95 06/13/95 0.012 +/-0.002 <0.016 9512537 06/13/95 06/20/95 0.020 +/-0.002 <0.018 9513049 06/20/95 06/27/95 0.022 +/-0.002 < 0.011 PAGE 2

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.; 1.1a SAMPLE: AIR SAMPLES,(BETA,1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS: pCi/m LOCATION: AS-1, PG LAB NO. BEGIN DATE END DATE GROSS BETA 1-131 REQ'D LLD 0.01 0.07 i 9513686 06/27/93 07/05/95 0.018 +/-0.002 < 0.022 9514075 07/00J5 07/11/95 0.022 +/-0.003 < 0.024 9514627 C714155 07/18/95 0.024 +/-0 002 < 0.013 9515379 07/18/95 07/25/95 0.015 +/-0.002 < 0.027 9515917 07/25/95 08/01/95 0.013 +/-0.002 < 0.019 9516669 08/01/95 08/08/95 0.016 +/-0.002 <0010 9517356 08/08SS 08/15/95 - 0.021 +/-0.002 < 0.029 9518081 08/15/95 08/22/95 0.025 +/-0.002 <0.026 9518662 08/22/95 08/29/95 0.021 +/-0.002 < 0.018 9519444 08/29/95 09/06/95 0.030 +1-0.002 <0.015 9519919 09/06/95 09/12S 5 0.039 +/-0.003 < 0.035 9520481 09/12/95 09/19/95 0.020 +/-0.002 < 0.019 9520920 09/19/95 09/26/95 0.024 +/-0 002 < 0.012 9521404 09/26/95 10/03/95 0.024 +/-0.002 < 0.049 9522101 10/03/95 10/10/95 0.019 +/-0.002. <0.020 9522637 10/10/95 10/17/95 0.025 +/-0.002 < 0.027 9522986 10/17/95 10/24/95 0.023 +/-0.002 < 0.017 9523456 10/24/95 10/31/95 0.026 +/-0.002 < 0.037 1 9523726 10/31/95 11/07/95 0.019 +/-0.002 < 0.016 9524385 11/07SS 11/14/95 0.016 +/-0.002 < 0.036 9525020 11/14/95 11/21 S 5 0.030 +/-0.002 < 0.021 9525384 11/21/95 11/28/95 0.022 +/-0.003 < 0.022 9525530 11/28 S 5 12/05/95 0.026 +/-0.003 < 0.016 9525835 12/05/95 12/12/95 0.037 +/-0_003 < 0.015 9526498 12/12/95 12/19/95 0.013 +/-0.002 < 0.017 9526843 12/19/95 12/2785 0_022 +/-0.002 <0.012 PAGE 3

i L i RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO : 1.2 SAMPLE-AIR SAMPLES.(BETA,1-131) COLLECTION. CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS pCi/m LOCATION. AS-3, 61VA LAB NO. BEGIN DATE END DATE GROSS BETA 1131 REQ'D LLD 0.01 0 07 9500003 12/28/94 01/03/95 0 026 +/-0 003 <0020 9500414 01/03/95 01/10/95 0 020 +/-0 002 <0018 9500915 01/10/95 01/17/95 0 015 +/-0 002 <0015 9501260 01/17/95 ' 01/24/95 0 011 +/-0 002 <0014 9501676 01/24/95 01/31/95 0 012 +/-0 002 < 0013 r l 9502184 01/31/95 02/07/95 0 018 +1-0 002 <0011 9502864 02/07/95 02/14/95 0 015 +/-0 002 <0014 3 9503286 02/14/95 02/21/95 0 014 +/-0.002 <0011 9503659 02/21/95 02/28/95 0 009 +/-0.002 <0016 ~ 9504199 02/28/95 03/07/95 0 018 +/-0.002 <0027 9504507 03/07/95 - 03/14/95 0.017 +/-0 002 <0017 9505211 03/14/95 03/2 siw5 0 009 +t-0 002 <0015 9505627 03/21/95 03/28/55 0 018 +I-0.002 <0019 j 9506104 03/28/95 04/04/95 0 016 +/4 002 <0017 5 9506786 04/04/95 01/11/95 0 013 +/-0.002 <0021 i 9507422 04/11/95 04/18/95 0.016 +/4 002 <0019 9507984 04/18/95 04/25/95 0.010 +/-0.002 <0049 t 9508513 04/25/95 05/02/95 0.021 +/-0 002 <0017 9509208 05/02/95 05/09/95

• 0 012 +/-0.002

<0046 9509551 05/09/95 05/16/95 0 014 +/-0.002 <0012 i 9510169 05/16/95 05/23/95 0.015 +/-0.002 <0042 i 9510598 05/23/95 05/31/95 0 017 +/4002 <0025 f [ 9511050 05/31/95 06/06/95 0 011 +I-0 002 <0023 9511815 06/06/95 06/13/95 0 019 +/-0.003 < 0016 9512538 06/13/95 06/20/95 0 018 +/-0 002 <0018 I 9513050 06/20/95 06/27/95

• O 013 +/-0.002 '

<0011 ~'

• See Summary of Monitoring Results. Page Ia.

PAGE 4

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. 1.2a SAMPLE AIR SAMPLES,(BETA,1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS: pCi/m LOCATION: AS-3, 61VA LAB NO. BEGIN DATE END DATE GROSS BETA i-131 REQ'D LLD 0.01 0.07 9513687 06/27/95 07/05SS 0.014 +/-0.002 <0.022 9514076 07/05/95 07/11/95 0.016 +/-0.002 < 0.024 9514628 07/11/95 07/18/95 0.017 +/-0.002 < 0.013 9515380 07/18/95 07/25/95 0.015 +/-0.002 < 0.027 9515918 07/25s 5 08/01/95 0.012 +/-0.002 < 0.019 9516670 08/01/95 08/08/95 0.010 +/-0.002 <0.010 9517357 08/08/95 08/15/95 0.015 +/-0.002 <0.029 9518082 08/15/95 08/22/95 0.019 +/-0.002 < 0.026 9518663 08/22/95 08/29/95 0.023 +/-0.002 <0.018 9519445 08/2985 09/06 S5 0.023 +/-0.002 <0.015 9519920 09/06/95 09/12/95 0.028 +/-0.003 < 0.035 9520482 09/12/95 09/19/95 0.027 +/-0.002 < 0.019 9520921 09/19/95 09/26s5 0.021 +/-0.002 <0.012 9521405 09/26/95 10/03/95 0.020 +/-0.002 <0.049 9522102 10/03/95 10/1085 0.015 +/-0.002 < 0.020 9522638 10/10/95 10/17/95 0.023 +/-0.002 < 0.027 9522987 10/17/95 10/24/95 0.017 +/-0.002 <0.017 9523457 10/24/95 10/31/95 0.020 +/-0.002 < 0.037 9523727 10/31 S 5 11/07s 5 0.014 +/-0.002 < 0.016 9524386 11/07s 5 11/14/95 0.013 +/-0.002 <0.036 9525021 11/14/95 11/21/95 0.025 +/-0.002 < 0.021 9525385 11/21/95 11/28 s 5

• 0.015 +/-0.003

<0.022 9525531 11/28/95 12/05/95 0.018 +/-0.002 <0.016 9525836 12/05/95 12/12/95 0.032 +/-0.003 <0.015 9526499 12/12/95 12/19/95 0.012 +/-0.002 <0.017 9526844 12/19/95 12/27s 5 0.023 +/-0.002 < 0.012

• See Summary of Monitoring Results Page la.

PAGES ~

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO : 13 SAMPLE. AIR SAMPLES. (BETA,1-131) COLLECTION CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS pCi/m LOCATlON: AS-4, GJOE

• LAB NO DEGIN DATE END DATE GROSS BETA l-131 REO'OLLD 0 01 0 07 9500004 12/28/94 01/03/95 0 022 +/-0 003

< 0.020 9500415 01/03/95 01110/95 0 018 +1-0 002 <0018 9500916 01/10/95 01f17/95 0 012 +/4 002 < 0.015 9501261 01/17/95 01/24/95 0 010 +/-0 002 <0014 9501677 01/24/95 01/31/95 0 010 +/-0 002 <0013 9502185 01/31/95 02/07/95 0 014 +/-0 002 < 0011 9502865 02/07/95 02/14/95 0 012 +/4 002 <0014 9503287 02/14/95 02/21/95 0 013 +/-0 002 <0011 9503660 02/21/95 02/28/95 0 010 +/-0 002 <0016 9504200 02/28/95 03/07/95 0 015 +1-0 002 <0027 9504508 03/07/95 03/14/95 0 013 +/-0 002 <0017 9505212 03/14/95 03/21/95 0 008 +/-0 002 <0015

• See Summary of Monitoring Results. Page 1.

PAGE 6

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO 14 SAMPLE AIR SAMPLES,(BETA,1-131) COLLECTlON. CONTINUOUS WITH WEEKL1r EXCHANGE UNITS: pCi/m' LOCATION AS-5. TC LAB NO. BEGIN DATE END DATE GROSS BETA l-131 REO'D LLD 0 01 0 07 9500005 12/28/94 01/03/95 * <0027 <0020 9500416 01/03/95 01110/95 0 023 +I-0 004 <0018 9500917 01110/95 01/17/95 0 014 +/-0 002 <0015 9501262 01/17/95 01/24/95 * <0017 <0014 9501675 01/24SS 01/31/95 0 010 +14 002 <0013 9502186 01/3185 02/07/95 0 014 +/-0 002 <0011 9502866 02/07/95 02/14/95 0 013 +1-0 002 <0014 9503288 02/14/95 02/21/95 0 012 +/-0 002 <0011 9503661 02/21195 02/28/95 0 010 +/4 002 <0016 9504201 02/28/95 03!O7/95

• O 012 +/-0 002

<0027 9504509 03/07/95 03/14/95

• O 020 +14 003

<0017 9505213 03/14/95 03/21/95 * < 0080 <0015 9505628 03/21/95 03/28/95

• O 018 +/4 003

<0019 9506105 03/28/95 04/04/95 0 016 +/-0 002 <0017 9506787 0444S5 04/11/95 0 012 +14 002 < 0 021 9507423 04/11/95 04/18S5 0011 +/-0 002 <0019 9507985 04/18/95 04/25/95 * < 0010 <0049 9508514 04/25/95 05/02/95 0 015 +/4 002 <0017 9509209 05/02/95 05/09/95

• 0011

+/-0 011 <0046 9509552 05/09/95 05/16/95 0 012 +14 002 <0012 95101 D 05/16/95 05/23/95

• 0.014 +/-0 004

<0042 9510599 05/23/95 05/31/95

• O 016 +I-0.002

<0025 9511051 W1/95 06/06/95 0 012 +/-0 002 <0023 9511816 06/06/95 06/13/95 0 012 +1-0 002 < 0016 9512539 06/13/95 06/20/95 0 017 +1-0 002 <0018 9513051 06/20!95 06/27/95 0 019 +I-0.002 < 0.011

• See Summary of Monitoring Results, Pages 1 and la.

PAGE 7

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.; 1.4a . SAMPLE: AIR SAMPLES,(BETA,1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE UNITS: pCi/m' LOCATION: AS-5, TC LAB NO. BEGIN DATE END DATE GROSS BETA l-131 REOV LLD 0.01 0.07 9513688 08/27s 5 07/05/95 0.013 +/-0.002 <0.022 9514077 07/05/95 07/11/95 0.017 +/-0.002 < 0.024 9514629 07/11/95 07/18/95 0.017 +/-0.002 < 0.013 9515381 07/18/95 07/25/95 0 014 +/-0.002 < 0.027 9515919 07/25/95 08/01/95 0.011 +/-0.002 < 0.019 9516671 08/01/95 08/08/95 0 010 +/-0.002 < 0.010 9517358 08/08/95 08/15/95 0.016 +/-0.002 < 0.029 9518063 08/15/95 08/22/95 0.018 +/-0.002 < 0.026 9518664 08/22/95 08/29/95 0.024 +/-0.002 < 0.018 9519446 08/29/95 OlWOS/95 0.026 +/-0.002 <0.015 9519921 09/06/95 09/12/95 0.032 +1-0.003 <0.035 9520483 09/12/95 09/19/95 0.021 +/-0.002 <0.019 9520922 09/19/95 09/28/95 0.022 +/-0.002 < 0.012 9521406 09/26/95 10/03/95

• 0 028 +/-0.005

< 0.049 9522103 10/03/95 10/10/95 0.013 +/-0.002 <0.020 9522639 10/10/95 10/17/95 0 021 +/-0 002 < 0.027 9522988 10/17195 10/24/95

• 0 017 +/-0.003

< 0.017 9523458 10/24/95 10/31/95 0.017 +/-0.002 < 0.037 9523728 10/31/95 11/07/95 0.014 +/-0.002 <0.016 9524387 11/07/95 11/14/95 0.013 +/-0.002 < 0.036 9525022 11/14/95 11/21/95 0.026 +/-0.002 < 0.021 9525386 11/21/95 11/28/95 0.018 +/-0.003 <0.022 9525532 11/28/95 12/05/95 0.020 +/-0.002 < 0.016 9525837 12/05/95 12/12/95 0.033 +/-0.003 < 0.015 9526500 12/12/95 12/19/95 0.012 +/-0.002 < 0.017 9526845 12/19/95 12/27/95 0.026 +/-0.002 < 0.012

• See Summary of Monitoring Results, Page la.

PAGE 8

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.

1.5 SAMPLE

AIR SAMPLES,(BETA.1-131) COLLECTION. CONTINUOUS WITH WEEKLY EXCHANGE l UNITS: pCi/m LOCATION: AS-6 RS

• t.AB NO.

BEGIN DATE END DATE GROSS BETA l-131 REO'DLLD 0.01 0 07 9500006 12/28/94 0123/95 0 028 +/4 003 <0020 9500417 0103/95 01/10/95 0 013 +1-0 002 <GD18 9500918 01/10/95 01/17/95 0 014 +/-0 002 < 0 015 9501263 01i17/95 01/24/95 0 010 +1-0 002 <0014 9501679 01/24/95 01/31/95 0 011 +/-0.002 < 0013 9502187 01/31/95 02/07/95 0.015 +/-0 002 <0011 9502867 02M7/95 02/14/95 0 015 +I-0 002 <0014 9503289 02/14/95 02/21/95 0 015 +/-0 002 <0011 9503662 02/21/95 02/28/95 0 010 +/-0 002 < 0.016 9504202 02/28/95 03/07/95 0 017 +/-0 002 <0.027 9504510 0307/95 03/14/95 0 017 +/-0 002 < 0.017 9505214 03/14/95 03/21/95 0 008 +/-0 002 < 0015

• See Sunnary of Monitoring Results. Page 1.

PAGE 9 s

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. 16 SAMPLE. AIR SAMPLES. (BETA.1-131) COLLECTION. CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS: pCvm LOCATION AS-7 MT

• i LAB NO.

BEGIN DATE - END DATE GROSS BETA 1131 REOD LLD 0 01 0 07 9500907 12/28/94 01/03/95 0 027 +/-0 003 <0020 9500418 01/03/95 01110/95 0 023 +1-0.002 < 0018 9500919 01110/95 01117/95 0 013 +/-0.002 < 0.015 9501264 01/17/95 01124/95 0 013 +14002 ~ <0014 i 9501680 01/24/95 01131/95 0 012 +1-0 002 <0013 9502188 01/3195 02/07/95 0 017 +I-0 002 <0011 9502868 02/07/95 02/1495 0 013 +14 002 <0014 9503290 02/14/95 02/21/95 0 014 +/-0 002 <0011 9503663 02/21/95 02/28G5 0.010 +/-0.002 <0016 9504203 07/28/95 03/07/95 0.016 +I-0 002 <0.027 9504511 03/07/95 03/1495

• 0.015 +1-0 002

<0017 9505215 03/14/95 03/21/95 0 008 +/-0.002 <0.015

• See Summary of Monitoring Results. Pages 1 and la.

PAGE 10 . -... ~

- -..... -.. - ~ RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.

1.7 SAMPLE

AIR SAMPLES. (CGA,1-131) COLLECTION. CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS: pCi/m ' LOCATION. AS-8 WR

• LAB NO.

BEGIN DATE END DATE GROSS BETA I-131 REO'O LLD 0 01 0 07 9500008 12/28/94 01/03/95 0 024 +1-0 003 <0020 9500419 01/03/95 01/10/95 0 018 +/-0 002 <00*S 9500920 01/10/95 01117/95 0 006 +/-0 002 <0015 9501265 01/17/95 01/24!95 0.007 +/-0 002 <0014 9501681 01/24/95 01/31/95 0 009 +/4 002 <0013 9502189 ' 01/31195 02/07/95 0 012 +/-0 002 <0011 9502869 02/07/95 02/14/95 0 013 +I-O 002 . <0014 9503291 02/14/95 02/21/95 0 012 +/-0 002 <0011 9503664 02/21/95 ' 02/28/95 0.007 +t-0 002 <0016 9504204 02/28/95 03/07/95 0 011 +/-0.002 < 0 027 9504512 03/07/95 03/14/95 0 013 +1-0 002 <0017 9505216 . 03/14/95 03/21/95 0 009 +1-0.002 <0015

• See Summary of' Monitoring Results, Page 1.

1 I PAGE 11 -w.------..-..- -. = --r- ,--------_-----,_u n-a-._a-,____--- u-- - -,w-_ _ _. _ _ _ - - - - J

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO 18 SAMPLE. AIR SAMPLES,(BETA.1-131) COLLECTION CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS: pCalm LOCATION. AS-10. HR

• LAB NO.

BEGIN DATE END DATE GROSS BETA l-131 REO'D LLD 0.01 0 07 9500009 12/28/94 01/03/95 0 026 +/-0 003 <0020 9500420 01/03/95 01/10/95 0 010 +/-0 002 <0018 9500921 01/10/95 01/17S 5 0 014 +/-0 002 <0015 9501266 01/17/95 01/24/95 0 009 +/ 0.002 <0014 9501682 01/24/95 01/31/95 0 013 +/-0 002 <0013 9502190 01/31 S 5 02/07/95 0 016 +/-0 002 <0011 9502870 02/07/95 02/14/95 0 014 +/-0 002 < 0014 9503292 02/14/95 02/21/95 0 013 +/-0 002 <0.011 9503665 02/21 S 5 02/28/95 0 011 +/-0 002 <0016 9504205 02/28/95 03/07/95

• 0.018 +/-0 002

< 0 027 9504513 03/07/95 03/14/95

• O 015 +/-0 002

< 0017 9505217 03/14/95 03/21/95 0 007 +/-0.002 <0015

• Sec Summary of Monitoring Results, Pages 1 and la.

PAGE 12 - a

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.1.9 SAMPLE: AIR SAMPLES,(BETA 1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE 3 UNITS: pCi/m LOCATION. AS-11, BB

• LAB NO BEGIN DATE END DATE GROSS BETA 1-131 REQ'D LLD 0 01 0 07 9500010 12/28/94 01/03/95 0 028 +/4003

< 0020 9500421 01/03/95 01/10 S 5 0.021 +/-0.002 < 0.018 9500922 01/10/95 01/17/95 0 013 +/-0 002 < 0015 9501267 01/17/95 01/24/95 0.009 +/-0 002 < 0014 9501683 01/24/95 01/3U95 0 012 +/-0 002 <0013 9502191 01131/95 02/07/95 0 015 +/-0 002 <0011 9502871 02/07/95 02/14/95 0 015 +/-0 002 <0014 9503293 02/14/95 02/21/95 0 013 +/-0.002 <0011 9503666 02/21/95 02/28/95 0 010 +I-0.002 < 0016 9504206 02/28/95 03/07/95 0 014 +/-0 002 <0027 9504514 03/07/95 03/14/95 0 017 +/-0 002 <0017 9505218 03/14/95 03/21/95 0 008 +1-0 002 < 0015

• See Summary of Monitoring Results, Page 1.

PAGE 13

7 t E d l l f RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT { TABLE NO. : 1.10 j SAMPLE AIR SAMPLES,(BETA 1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE UNITS: pC1/m k 3 [ LOCATION: AS-6, BF

• LAB NO.

BEGIN DATE END DATE GROSS BETA I-131 ~ REO'D LLD 0.01 0.07 [ 9505231 03/14/95 03/21195 0.008 +/-0.002 <0.015 9 9505629 03/21/95 03/28/95 0.012 +/-0 002 <0.019 i 9506106 03/28/95 04/04/95 0.014 +/-0.002 < 0.017 [ 9506788 04/04/96 04/11/95 0.012 +/-0.002 < 0.021 i 9507424 04/11/95 04/18/95 0.011 +/-0.002 < 0.019 I 9507986 04/18/95 04/25/95 0.007 +/-0.002 < 0.049 l i i 9508515 04/25/95 05/02/95 0.020 +/-0.002 <0017 9509210 05/02/95 05/09/95

• 0.011 +/-0.002

<0.046 l 9509553 05/09/95 05/16/95 0.010 +/-0.002 <0012 9510171 05/16/95 05/23/95

• 0.018 +/-0.004

< 0.042 l 9510000 05/23/95 05/31/95

• 0.015 +/-0.002

< 0.025 [ l 9511052 05/31/95 06/06/95 0.012 +/-0.002 <0.023 i 9511817 06/06/95 06/13/95 0.012 +/-0.002 < 0.016 i 9512540 06/13/95 06/20/95 0.017 +/-0.002 <0018 f { 9513052 06/20/95 06/27/95 0.019 +/-0.002 < 0.011 9513889 06/27/95 07/05/95 0.012 +/-0.003 <0.022 9514078 07/05/95 07/11/95

• 0.012 +/-0.003

<0.024 9514630 07/11/95 07/18/95 0.019 +/-0.002 <0013 9515382 07/18/95 07/25/95

• 0.012 +/-0.003

< 0.027 i i 9515920 07/25/95 08/01/95

• 0.013 +/-0.003

< 0.019 } 9518672 08/01/95 08/08/95 0.014 +/-0.002 < 0.010 9517359 08/08/95 08/15/95

• 0.016 +/-0.003

< 0 029 9518084 08/15195 06/22/95

• 0.019 +/-0.003

< 0.026 9518665 08/22/95 08/29/95

• 0.024 +/-0.003

< 0.018 l 9519447 08/29/95 09/06/95 0.025 +/-0.002 <0.015 I 9519922 09WU6/95 09/12/95

• 0.058 +/-0.007

<0.035 i 9520484 09/12/95 09/19795 0.024 +/-0.002 <0019 9520923 09/19795 09/26/95

• 0.024 +/-0.002

< 0.012

• See Summary'of Monitoring Results, Pages 1 and la.

PAGE 14 l

I RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 1.10s SAMPLE: AIR SAMPLES,(BETA,1-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE 8 UNITS: pCi/m LOCATION: AS-6, BF

• LAB NO.

BEGIN DATE END DATE GROSS BETA l-131 REQ'D LLD 0.01 0.07 9521407 09/26/95 10/03SS ' O.025 +/-0.002 <0.049 9522104 10/03S5 10/1095 0.013 +/-0.002 <0.020 9522640 10/1GS5 10/17/95 0.027 +/-0.003 <0.027 9522989 10/17S5 10/24/95 0.015 +/-0.002 <0017 9523459 10/2495 10/31 S 5

• 0.026 +/-0.005

<0.037 9523729 10/31 S 5 ' 11/07/95 0.016 +/-0.002 < 0.016 9524388 11/07S 5 11/14SS

• 0.012 +/-0.003

< 0.036 t 9525023 11/1495 11/21S5 0.023 +/-0.002 < 0.021 9525387 11/21 S 5 11/28/95

• 0.013 +/-0.003

<0.022 9525533 11/28/95 12/05SS 0.019 +/-0.002 < 0.016 9525838 12/05/95 12/12/95 0.026 +/-0 003 <0.015 9526501 12/12/95 12/19/95 0.008 +/-0.002 < 0.017 9526846 12/19/95 12/27/95 0.023 +/-0.002 < 0.012 f

• See Summary of Monitoring Results, Pages 1 and la.

PAGE 15 .-. - -.~..

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO 1 11 SAMPLE-AIR SAMPLES,(BETA,1-131) COLLECTION CONTINUOUS WITH WEEKLY EXCHANGE UNITS pCi/m' LOCATION. AS-7, UH

• LAB NO. BEGIN DATE END DATE GROSS BETA l-131 REO'D LLD 0 01 0 07 9505232 03/14/95 03/21/95 0 007 +/-0 002

<0015 9505630 03/21/95 03/28/95 0 015 +/-0 002 <0019 9506107 03/28/95 O *04/95 0 016 +/-0 002 <0017 9506789 0 *04/95 04/11/95 0 013 +/4 002 <0021 9507425 04/11/95 04/18/95 0 012 +/-0.002 <0019 9507987 04/18/95 04/25/95 0 004 +/-0 002 <0049 9508516 04/25/95 05/02/95 0 018 +/-0 002 <0017 9509211 05/02/95 05/09/95

• 0011

+/-0 002 <0046 9509554 05/09/95 05/16/95 0 012 +/-0.002 <0012 9510172 05/16/95 05/23/95

• O 013 +/-0 005

<0042 9510601 05/23/95 05/31/95

• O 014 +/-0 002

<0025 9511053 05/31/95 06/06/95 0 012 +/-0.002 <0023 9511818 06/06/95 06/13/95 0 013 +/-0 002 <0016 9512541 06/13/95 06/20/95 0 018 +/-0 002 <0018 9513053 06/20/95 06/27/95 0 019 +/-0 002 <0011 9513690 06/27/95 07/05/95 0 014 +/-0 002 <0022 9514079 07/05/95 07/11/95 0 019 +/-0 002 <0024 9514631 07/11/95 07/18/95 0 018 +/-0 002 <0013 9515383 07/18/95 07/25/95 0 014 +/-0 002 < 0 027 9515921 07/25/95 ORO1/95 0 013 +/4 002 <0019 9516673 08/01/95 08/08/95 0 013 +/-0 002 <0010 9517360 08/08/95 08/15/95 0 016 +/-O 002 < 0029 9518085 08/15/95 08/22/95 0 015 +/-0 004 <0026 9518666 08/22/95 08/29/95 0 023 +/-0 002 <0018 9519448 08/29/95 09/06/95 0 029 +/-0 002 <0015 9519923 09/06/95 09/12/95 0 036 +/-0 003 = 0 035 9520485 09/12/95 09/19/95 0 025 +/-0 002 <0019 9520924 09/19/95 09/26/95 0 027 +/-0 002 <0012

• See Summary of Monitoring Results, Pages 1 and la.

PAGE 16 ~

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. - 1.11a SAMPLE: AIR SAMPLES,(BETA,I-131) COLLECTION: CONTINUOUS WITH WEEKLY EXCHANGE UNITS: pCbd LOCATION: AS-7, UH

• LAB NO. BEGIN DATE END DATE GROSS BETA l-131 REQT) LLD 0.01 0.07 9521408 09/26/95 1003/95 0.028 +/-0.002

< 0.049 9522105 10/03/95 10/10/95 0.016 +/-0.002 <0020 9522641 10/10/95 10/17/95 0.024 +/-0.002 <0.027 9522990 10/17/95 10/24/95 0.020 +/-0 002 <0.017 9523460 10/24/95 10/31/95 0.018 +/-0.002 <0.037 9523730 10/31/95 11/07/95 0.016 +/-0.002 <0.016 9524389 11/07!95 11/14/95 0.012 +/-0.002 < 0.036 9525024 11/14/95 11/21/95 0.027 +/-0.002 < 0.021 9525388 11/21/95 11/28/95 0.018 +/-0.003 <0.022 9525534 11/28/95 12/05/95 0.021 +/-0.002 <0016 9525839 12/05/95 12/12/95 0.030 +/-0 003 <0.015 9526502 12/12/95 12/19/95 0 013 +/-0.002 < 0.017 9526847 12/19/95 12/27/95 0.029 +/-0.002 <0.012

• See Suunnary of Monitoring Results Page 1.

PAGE 17 - ~

l ~ RADIOLOGlCAL ENVIRONMENTAL MONITORING REPORT i TABLE NO. : 1.12 SAMPLE: AIR SAMPLES,(GAMMA) l COLLECTION: QUARTERLY COMPOSITE OF WEEKLY SAMPLES UNITS: pCl/m' LOCATION LAB NO. BEGIN DATE END DATE Cs-134 Cs-137 REQ'D LLD 0 05 0.06 AS-1, PG 9506185 12/28/94 03/28/95 <0.0012 < 0.0012 AS-1, PG 9513529 03/28/95 06/27/95 < 0.0008 < 0L007 AS-1, PG 9521996 06/27/95 09/26/95 <0.0007 <0.0006 AS-1, PG 9600209 09/26/95 12/27/95 <0.0007 <0.0006 AS-3, 61VA 9506186 12/28/94 03/28/95 <0.0010 < 0.0008 AS-3, 61VA 9513530 03/28/95 06/27/95 <0.0006 < 0.0006 AS-3, 61VA 9521997 06/27/95 09r26,95 <0.0006 < 0.0006 AS-3, 61VA 9600210 09/26/95 12/27/95 <0.0009 < 0.0010 AS-5, TC 9506187 12/28/94 03/28/95 <0.0011 <0.0009 AS-5, TC 9513531 03/28/95 06/27/95 <0.0006 <0.0007 AS-5, TC 9521998 06/27/95 09/26/95 < 0.0006 < 0.0008 AS-5, TC 9600211 09/26/95 12/27/95 <0.0010 <0.0009

• AS4, BF 9506188 03/14/95 03/28/95

<0.0062 <0.0052 AS4, BF 9513532 03/28/95 06/27/95 <0.0013 <0.0010 AS4, BF 9521999 06/27/95 09/26/95 <00012 < 0.0010 AS4, BF 9600212 09/26/95 12/27/95 <0.0007 <0.0006

• AS-7, UH 9506189 03/14/95 03/28/95

<0.0063 < 0.0053 AS-7, UH 9513533 03/28/95 06/27/95 <0.0006 < 0.0006 AS-7, UH 9522000 06f27/95 09r26/95 <0.0006 < 0.0006 AS-7, UH 9800213 09/26/95 12/27/95 <0.0008 < 0.0010

• See Summary of Monitoring Results, Page 1.

PAGE 18

l RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 1.13 SAMPLE: AIR SAMPLES,(GAMMA) COLLECTION: QUARTERLY COMPOSITE OF WEEKLY SAMPLES (DISCONTINUED LOCATIONS)

• UNITS: pCi/m*

LOCATION LAB NO. BEGIN DATE END DATE Cs-134 Cs-137 REQ'D LLD 0.05 0.06 AS-4, GJOE 9505577 12/28/94 03/21/95 <0.0010 < 0.0008 AS-6, RS 9505581 12/28/94 03/21/95 <0.0013 < 0.0012 AS-7, MT 9505582 12/28/94 03/21/95 < 0.0011 < 0.0008 AS-8, WR 9505578 12/28/94 03/21/95 < 0.0009 < 0.0009 AS-10. HR 9505579 12/28/94 03/21/95 <0.0010 <0.0010 AS-11, BB 9505580 12/28/94 03/21/95 < 0.0011 <0.0009 i

• See Summary of Monitoring Results, Page 1.

i i f 1 PAGE 19

v RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT [ TABLE NO.

• 2.1 t

SAMPLE: CISTERN WATER,(BETA,1-131, GAMMA) COLLECTION. MONTHLY UNITS: pCi/L 7 LOCATION: WILLIS CISTERN l LAB NO. COLLECTION BETA l-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 DATE REQD LLD 4.0 1.0 15 30 15 15 30 30 15 15 18 60 15 t 9500765 01/16/95 < 2.6 < 0.6 <5 <7 <5 <7 < 11 < 13 <6 <6 <6 < 30 <7 9500766GG 01/16/95 < 2.7 < 0.6 <5 <6 <5 <4 < 10 < 11 <5 <5 <5 < 25 <5 ? 9503024 02/16/95 4.1 +/- 1.4 < 0.4 <2 <3 <2 <2 <4 <5 <2 <2 <2 < 14 <3 9503025GG 02/16/95 5 0 +/- 1.5 < 0.5 <4 <6 <4 <5 < 10 < 10 <5 <4 <5 < 24 <8 9505220 03/17/95 < 2.0 < 0.7 <4 <6 <4 <3 <9 < 10 <4 <4 <4 < 18 <5 9507819 04/20/95 2.1 +/- 1.8 < 0.8 <3 <5 <3 <4 <8 <8 <4 <4 <4 < 16 <5 9509989 05/22/95 3.5 +/- 1.5 < 0.6 <2 <3 <2 <2 <4 <4 <2 <2 <2 <8 <2 9512210 06/15/95 2.3 +/- 1.8 < 0.4 <2 <3 <2 <2 <4 <4 <2 <2 <2 <8 <2 9514588 07/17/95 < 2.4 < 0.8 <2 <2 <2 <2 <3 <4 <2 <2 <2 <7 <2 I 9517367 08/16/95 < 2.3 < 0.5 <3 <4 <3 <2 <6 <6 <3 <3 <3 < 13 <3 9520455 09/19/95 1.5 +/- 1.3 < 0.7 <2 <2 <2 <2 <4 <4 <2 <2 <2 <9 <2 9522663 10/18/95 < 1.7 < 0.7 <3 <5 <3 <4 <7 <3 <3 <4 <3 < 15 <5 9524612 11/16/95 < 2.1 < 0.6 <2 <4 <3 <3 <6 <6 <3 <3- <3 < 13 <4 9526520 12/19/95 2.5 +/- 1.3 < 0.5 <3 <6 <3 <3 <7 <5 <3 <3 <3 < 15 <4 i I I PAGE 20 ~. - _ _, _ _ _ _ _ _ _

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 2.2 SAMPLE CISTERN WATER, (H4) i COLLECTION: QUARTERLYCOMPOSITE UNITS: pCFL LOCATION: WILLIS CISTERN LAS NO. BEGIN DATE END DATE H-3 REQV LLD 2000 i 9505222 01/1695 03/17/95 < 300 9505223GG Olliti/95 03/17/95 < 300 l 9512212 04/20 S5 06/15/95 < 320 9520457 07/17/95 09/1995 <320 i 9526522 10/18/95 12/19/95 < 290 i a I I s i i i b PAGE 21 1 y r n .e-.-

4 RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.; 2.3 SAMPLE: CISTERN WATER,(BETA,I-131, GAMMA) COLLECTION; MONTHLY UNITS: pCi/L LOCATION: MCGEE CISTERN

• LAB NO.

COLLECTION BETA l-131 M Mi4 Fe-59 Co-58 Co40 ZMIS Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 DATE REQ'D LLD 4.0 1.0 15 30 15 15 30 30 15 15 18 60 15 9500767 01/16/95 < 2.4 < 0.9 <5 <6 <5 <5 < 11 < 11 <5 <6 <5 < 25 <8 9500768GG 01/16/95 < 2.4 < 0.6 <4 <6 <4 <4 <9 < 10 <5 <5 <4 < 24 <6 9503026 02/16/95 2.6 +/- 1.2 < 0.7 <3 <5 <3 <4 <7 <8 <4 <3 <3 < 19 <6 9503027GG 02/16/95 3.7 +/- 1.3 < 0.7 <2 <4 <3 <3 <6 <6 <3 <3 <3 < 17 <4 9505221 03/17/95 < 1.8 < 0.7 <4 <6 <4 <4 <9 < 10 <4 <4 <4 < 19 <5 9507820 04/20/95 1.5 +/- 1.4 < 0.6 <3 <5 <3 <3 <7 <8 <4 <3 <3 <16 <6 9512211 06/15/95 22.1 +/- 2.6 < 0.3 <2 <3 <2 <2 <4 <5 <2 <2 <2 < 10 <3 9514589 07/17/95 5.5 +/- 1.6 < 0.6 <3 <3 <3 <3 <5 <6 <3 <3 <3 < 12 <2 9517368 08/16/95 1.7 +/- 1.2 < 0.6 <2 <3 <2 <2 <5 <5 <2 <3 <2 < 11 <4 9520456 09/19/95 2.0 +1-1.1 < 0.6 <2 <2 <2 <2 <4 <4 <2 <2 <2 <8 <2 9522664 10/18/95 < 2.1 < 0.6 <2 <2 <2 <2 <3 <4 <2 <2 <2 <7 <3 9524613 11/16/95 < 1.9 < 0.6 <3 <6 <3 <3 <6 <5 <3 <3 <3 < 15 <5 9526521 12/19/95 < 1.7 < 0.6 <3 <5 <3 <3 <6 <5 <3 <3 <3 < 14 <3

• See Summary of Monitoring Results, Page la.

PAGE 22

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. 2 4 SAMPLE: CISTERN WATER, (H-3) COLLECTION: QUARTERLYCOMPOSITE UNITS: pCi/L LOCATION: McGEE CISTERN

• LAB NO.

BEGIN DATE END DATE H-3 REQV LLD 2000 9505224 01/16/95 03/17/95 <300 NWG 01/16/95 03/17/95 < 300 9512213

• 0420/95 06/15/95

< 320 9520458 07/17/95 09/19/95 < 320 9526523 10/18/95 12/19/95 < 290

• See Summary of Monitoring Results, Page la.

PAGE 23 j i m m

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 2.5 SAMPLE: CISTERN WATER,(BETA,1-131, GAMMA) COLLECTION. AS NEEDED UNITS: pCi/L LOCATION: GRAND GULF ROAD CISTERN (ALTERNATE LOCATION)

• k LAB NO.

COLLECTION BETA l-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Be-140 La-140 ~ DATE REQ 1) LLD 40 1.0 15 30 15 15 30 30 15 15 18 60 15 9510357 05/23/95 6.1 +/-1.9 < 0.6 <2 <2 <2 <2 <4 <4 <2 <2 <2 <7 <2 i t L

• See Summary of Monitoring Results,-Page la.

PAGE 24

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT t SAMPLE: CISTERN WATER, (H-3) COLLECTION: QUARTERLYCOMPOSITE UNITS: pCi/L t LOCATION: GRAND GULF ROAD CISTERN (ALTERNATE LOCATION) LAB NO. BEGIN DATE END DATE H4 REQ'D LLD 2000 9512337 05r23/95 05/23/95 < 330 )

• See Summary of Monitoring Results, Page la.

J i PAGE 25 e

y r I RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT r TABLE NO. : 3.1 SAMPLE: GROUND WATER,(H-3, GAMMA) [ COLLECTION: QUARTERLY UNITS: pCi/L f LOCATION: PGWELLPORTGIBSON LAB NO. COLLECTION DATE H-3 Mn-54 Fe-59 Co-58 Co40 Zn-65 Zr-95 Nt>-95 Cs-134 Cs-137 Be-140 La-140 E I REQT) LLO 2000 15 30 15 15 30 30 15 15 18 80 15 9500327 01MG95 < 310 <4 <6 <4 <4 <9 <9 <4 <5 <4 < 24 <7 h 9500328GG 01MW95 < 310 <3 <4 <3 <3 <6 <7 <4 <4 <3 < 21 <4 i ~ 9506507 0404/95 < 300 <2 <3 <2 <2 <4 .<4 <2 <2 <2 < 11 <3 9513695 07/05/95 < 320 <2 <3 <2 <2 <4 <5 <2 <2 <2 <9 <3 9522180 10f04/95 <290 <2 <3 <2 <2 <4 <4 <2 <2 <2 < 10 <3 t ? 4 l 1 4 PAGE 26 l t . _. _ _. _. _ - - _ _ _ - - _ = _ _ _..-. ~ _. -.. - - - - - - _ - - _ _ _. - -. _ - _ _ _ _ _ _ _ -... _ _ - - - _ _. - _ - - _ - -_ -. - - -. _ _ _ __ __--,. - _-.__ _-_ -. - - _ _ -_. - _ - _ _ - -. _ _ _ _ - - - - - _ - - _ _ _ _ - - - -. - -... _ _ - _. - _. _ - _ _ - - _ _ - _ -

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 3.2 SAMPLE: GROUND WATER,(H-3, GAMMA) COLLECTION: QUARTERLY UNITS: pCl/L LOCATION: AAWELL, ARNOLD ACRES LAB NO. COLLECTION DATE H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Co-137 Ba-140 La-140 REQ *D LLD 2000 15 30 15 15 30 30 15 15 18 60 15 9500329 01/03/95 < 310 <3 <4 <3 <3 <6 <7 <4 <4 <3 < 19 <4 9500330GG 01/03/95 <310 <3 <4 <3 <3 <6 <6 <3 <3 <3 < 17 <5 9536508 04/04/95 < 300 <3 <4 <3 <3 <6 <6 <3 <3 <3 < 13 <5 9513696 07/05/95 < 320 <3 <3 <2 <2 <5 <5 <2 <3 <2 < 12 <3 9522181 10/06/95 e280 <2 <2 <2 <2 <4 <4 <2 <2 <2 <9 <2 PAGE 27

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 4.1 SAMPLE: SURFACE WATER, GRAB (GAMMA) COLLECTION: MONTHLY UNITS: pCi/L LOCATION: M!SS. RIVER UP LAB NO. COLLECTION DATE Mn-54 Fe-59 CW Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Be-140 La-140 REQT) LLD 15 30 15 15 30 30 15 15 18 60 15 9500323 01/03/95 <4 <6 <4 <4 '< 10 <9 <4 <5 <4 < 22 <6 9500324GG 01/03/95 <3 <4 <3 <3 <6 <7 <3 <4 <3 < 16 <5 I 9501924 01/31/95 <4 <6 <4 <5 < 10 <9 <4, <5 <4 < 18 <6 L 9504313 03/07/95 <2 <4 <2 <3 <5 <6 <3 <3 <3 < 10 <3 9504314GG 03/07/95 <4 <5 <4 <3 <8 <9 <4 <4 <4 < 18 <5 9506502 04/04/95 <2 <4 <3 <3 <5 <5 <3 <3 <3 < 15 <4 9508885 05/02/95 <3 <5 <3 -< 4 <8 <7 <3 <4 <3 < 15 <5 P 9511393 06/06/95 <3 <4 <3 <3 <6 <6 <3 <3 <3 < 10 <3 9514016 07/03/95 <1 <2 <1 2 +/- 1 <2 <3 <1 <1 <1 <5 <2 9516265 08/01/95 <4 <6 <5 <4 <9 <9 <5 <4 <4 < 18 <6 9519759 09/06/95 <2 <3 <2 <2 <4 <5 <3 <3 <2 < 13 <4 9521663 10/03/95 <3 <4 <3 <2 <5 <6 <3 <3 <3 < 13 <3 9523696 11/01/95 <2 <2 <2 <2 <4 <4 <2 <2 <2 <8 <2 9525647 12/05/95 <3 <7 <3 <3 <8 <6 <4 <3 <4 < 18 <4 i i PAGE 28

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 4.2 SAMPLE: SURFACE WATER, (H-3) COLLECTION: QUARTERLYCOMPOSITE UNITS: pCi/L LOCATION: MISS. RIVER UP LAB NO. BEGIN DATE END DATE H-3 REQT) LLD 2000 9504317 0123/95 03/07/95 <300 9504318GG 01/03/95 03/07s 5 < 300 9511058 0404/95 OlWO6795 < 330 9519966 07/03/95 09es/95 < 320 9525650 1003/95 12/05/95 < 290 - i f 1 PAGE 29

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 4.3 SAMPLE: SURFACE WATER, GRAB (GAMMA) COLLECTION: MONTHLY UNITS: pCL/L LOCATION: MISS. RIVER DOWN LAB NO. COLLECTION DATE Mn-54 Fe-59 CM8 Co40 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 REQT) LLD 15 30 15 15 30 30 15 15 18 60 15 9500325 01/03/95 <4 <4 <3 <3 <8 <8 <4 <4 <3 < 20 <4 9500326GG 01/03/95 <3 <4 <3 <3 <6 <7 <3 <4 <3 < 19 <4 9501925 01/31/95 <4 <5 <4 <4 <8 <9 <5 <5 <4 < 22 <6 9504315 03/07/95 <2 <3 <2 <2 <6 <6 <3 <3 <3 < 11 <3 9504316GG 03/07/95 <2 <3 <2 <2 <4 <5 <2 <2 <2 <9 <2 9506503 04/04/95 <3 <5 <3 <4 <8 <8 <4 <4 <4 < 16 <6 9508886 05/02/95 <2 <3 <2 <2 <4 <5 <2 <2 <2 <9 <3 9511394 06/06/95 <3 <4 <3 <3 <6 <8 <3 <4 <3 < 16 <4 9514017 07/03/95 <3 <4 <3 <3 <6 <7 <3 <3 <3 < 14 <5 9516266 08/01!95 <4 <5 < 4. <4 <7 <8 <4 <4 <4 < 16 <4 a 9519780 09/OS/95 <2 <4 <2 <3 <5 <5 <3 <3 <2 < 13 <4 b 9521664 10/03/95 <3 <5 <3 <3 <7 <7 <3 <4 <3 < 14 <5 9523697 11/01/95 =3 <6 <3 <3 <7 <6 <3 <3 <3 < 19 <4 9525648 12/05/95 <3 <4 <3 <3 <6 <7 <3 <3 <3 < 11 <4 L PAGE 30

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 4.4 SAMPLE-SURFACE WATER, (H-3) COLLECTION: QUARTERLYCOMPOSITE UNITS: pCl/L LOCATION: MISS. RIVER DOWN LAB NO. BEGIN DATE END DATE H-3 REQD LLD 2000 9504319 01/03/95 03/07/95 < 300 9504320GG 01/03/95 03/07/95 < 300 9511059 04/04/95 06/06/95 ' < 330 l 9519967 07/03/95 09/06/95 < 320 9525651 1003/95 12/05/95 240 +/-180 i I t s i b s I PAGE 31

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.; 4.5 SAMPLE: SURFACE WATER, COMPOSITE (GAMMA) COLLECTION. MONTHLY COMPOSITE UNITS: pCi/L f i.OCATION: DISCHARGE BASIN LAB NO. BEGIN DATE END DATE Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ha-140 La-140 REQ'D LLD 15 30 15 15 30 30 15 15 18 60 15 j 9501926 12/30/94 01/31/95 <3 <6 <4 <4 <8 <8 <4 <4 <4 < 16 <4 9503921 01/31/95 03/01/95 <2 <2 <2 5 +/- 2 <4 <4 <2 <2 <2 < 9 <2 9503922GG 01/31/95 03/01/95 <3 <3 <2 7 +/- 3 <5 <5 . <2 <3 <2 < 10 <4 9506504 03/01/95 04/04S 5 <2 <3 <2 <2 <4 <4 <2 <2 <2 < 10 <2 9508887 04/04/95 05/01/95 <3 <3 <3 <2 <5 <5 <3 <3 <2 < t2 <3 E 9511395 05/01/95 06/01/95 3 +/- 2 <3 <2 14 +/- 2 <4 <5 <2 <2 <2 < 12 <3 9514018 06/01/95 06/30/95 <2 <3 <3 9 +/- 3 <4 <5 <3 <3 <2 < 14 <4 9514019GG 06/01/95 06/30/95 <2 <3 <2 9 +/- 2 <4 <4 <2 <2 <2 < 11 <3 9 9516267 06/30/95 08/01/95 <2 <2 <2 6 +/- 2 <4 <5 <2 <2 <2 < 8 <2 9519761 08/01/95 09/01/95 <2 <3 <2 5 +1-1 <4 <5 <2 <2 <2 < 13 <3 9521665 09/01/95 10/02/95 <2 <3 <2 6 +/- 2 <4 <4 <2 <2 <2 < 9 <4 i 9523698 10/02/95 11/01/95 <2 <4 <2 4 +/- 1 <5 <4 <2 <2 <2 < 12 <3 E25439 11/0155 12/01/95 <3 <3 <2 8 +/- 2 <5 <5 <3 <3 <2 < 11 <3 3 +1-1 <S <4 <2 <2 <2 < 13 <4 9600197 12/01/95 0142/96 <2 <4 <2 ~4+1-3 ~ <6 <6 <3 <3 <3 < 13 <4 9600200GG 12/01/95 01/0246 <3 <4 <3 t e i PAGE 32 i w

l RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 4.6 SAMPLE: SURFACEWATER, (H-3) COLLECTION: QUARTERLY COMPOSITE UNITS: pCl/L LOCATION: DISCHARGE BASIN [ - LAB NO. BEGIN DATE END DATE H-3 t REQ'D LLD 2000 i 9506505GG 12/30 S 4 04/04/95 8410 +/-250 9506506 12/305M 04/04/95 8270 +/-250 j 9514020 04/04/95 06/30/95 5470 +/- 240 9514021GG 04/04/95 06/30/95 5460 +/- 240 { 9521666 06/30f95 10/02/95 10090 +/-260 9600201 10/02/95 01/02/96 11430 +/-280 r i 1 I 5 PAGE 33

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 5.1 SAMPLE: VEGETATION: BROADLEAF, (I-131, GAMMA) COLLECTION:MONTHLYWHEN AVAILABLE UNITS: pCVkg LOCATION: SECTOR K. 17 KM LAB NO. COLLECTION SAMPLE TYPE l-131 Cs-134 Cs-137 DATE REOT) LLD 60 60 80 9500528 01/11/95 COLLARDS < 24 < 26 < 21 9500529 01/11/95 RAPE < 23 < 22 < 22 9500530 01/11/95 KALE < 33 < 33 < 23 9502812 02/13/95 RAPE < 21 <19 <15 9502813 02/13/95 COLLARDS <17 < 13 < 14 9502814 02/1345 KALE < 22 < 20 < 24 9504599 03/15/95 COLLARDS < 19 < 20 < 16 9504600 03/15/95 MUSTARDS < 21 < 20 < 16 9504601 03/15/95 RAPE < 20 < 23 < 18 9507036 04/13/95 RAPE <13 < 16 < 13 9507037 04/13/95 KALE < 18 < 18 < 16 9507038 04/13/95 COLLARDS < 16 < 19 <16 9509592GG 05/17/95 KALE < 21 < 19 < 17 9509593 05/17/95 RAPE < 21 < 21 < 23 9509594GG 05/17S5 RAPE < 22 <19 < 19 9509595 05/17/95 COLLARDS < 17 < 15 < 15 9509596GG 05/17/95 COLLARDS < 17 < 21 < 15 9509597 05/17/95 KALE < 19 <19 < 20 9511999 06/14/95 KALE < 11 < 11 <9 9512000 06/14/95 SWISS CHARD < 12 < 12 < 11 9512001 06/14/95 COLLARDS < 15 < 19 e18 PAGE 34

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 5.ta SAMPLE: VEGETATION: BROADLEAF, (1-131, GAMMA) COLLECTION: MONTHLY WHEN AVAILABLE UNITS: pCilkg LOCATION: SECTOR K.17 KM LAB NO. COLLECTION SAMPLE TYPE l-131 Cs-134 Cs-137 DATE REQD LLD 60 60 80 9514263 07/12/95 KALE < 16 <18 < 14 9514264 07/12/95 COLLARDS <1B < 17 < 14 9514265 07/12/95 RAPE < 16 < 18 < 15 9514272GG 07/12/95 KALE < 13 < 14 < 11 9517215 08/15/95 KALE <19 < 15 < 19 9517216 08/15/95 RAPE < 15 < 15 < 14 9517217 08/15/95 COLLARDS <10 <9 <8 9520446 09/18/95 KALE < 25 < 25 < 24 9520447 09/18/95 WATERMELON < 21 < 26 < 19 9520448 09/18/95 CANTALOUPE < 33 < 32 < 25 9522429 10/16/95 EWDINE < 22 < 25 < 24 9522430 10/16/95 KALE < 17 < 16 < 15 9522431 10/16/95 COLLARDS < 11 < 11 <9 9524486 11/15/95 RAPE <20 < 26 < 22 9524487 11/15/95 COLLARDS < 18 < 21 < 12 9524488 11/15/95 BROCCOLI < 27 < 31 < 23 9526270 12/15/95 COLLARDS < 26 < 20 < 20 9526271 12/15/95 MUSTARD GREENS < 17 < 11 < 13 9526272 12/15/95 RAPE <18 < 14 < 16 PAGE 35

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 5.2 ? SAMPLE: VEGETATION: BROADLEAF,(l-131, GAMMA) L COLLECTION: MONTHLY WHEN AVAILABLE i UNITS: pCilkg i LOCATICN: SECTOR J, 0.6 KM LAB NO. COLLECTION SAMPLE TYPE l-131 Cs-134 Cs-137 DATE j REQ'D LLD 60 80 80 9500531 01/11/95 SWISS CHARD < 21 < 23 < 16 9500532 01/11/95 KALE < 27 < 20 < 19 9500533 01/11/95 COLtARDS < 24 < 23 < 23 I 9502815 02/13/95 RAPE < 23 < 21 < 21 l 9502816 02/13/95 SWISS CHARD < 23 < 25 < 19 l 9502817 02/13/95 COLLARDS < 25 < 21 < 22 9504602 03/15/95 COLLARDS < 22 < 18 < 18 9504603 03/15/95 RAPE < 36 < 32 < 26 9504604 03/15/95 KALE < 33 < 31 < 28 9507039 04/13/95 KALE < 17 < 17 <15 9507040 04/13/95 SWISS CHARD <14 < 16 < 13 9507041 04/13/95 COLLARDS < 16 < 18 < 17 l I 9509596GG 05/17/95 SWISS CHARD < 14 < 17 < 12 9509599 05/17/95 SWISS CHARD < 14 < 20 < 19 9509600GG 05/17/95 BRUSSEL SPROUTS < 20 < 24 < 21 9509601 05/17/95 KALE < 24 < 20 < 22 9509602GG 05/17/95 KALE < 10 < 15 < 11 9509603 05/17/95 BRUSSEL SPROUTS < 24 < 22 < 19 f 9512002 06/14/95 BRUSSEL SPROUTS < 11 < 11 < 10 L 9512003 06/14/95 RAPE < 16 < 17 < 14 9512004 06/14195 ENDIVE <15 < 18 < 17 F 4 l i PAGE 36

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 5.2a SAMPLE:WGETATION: BROADLEAF, (1-131, GAMMA) COLLECTION:MONTHLYWHEN AVAllABLE UNITS: pCilkg LOCATION: SECTOR J, 0.6 KM LAB NO. COLLECTION SAMPLE TYPE l-131 Cs-134 Cs-137 DATE REQ'D LLD 80 60 80 9514266 07/12/95 BROCCOLI < 18 < 19 <16 9514267 07/12/95 BRUSSEL SPROUTS < 20 < 17 < 16 9514268 07/12/95 COLLARDS <12 < 15 < 11 1 9514273GG 07/12/95 SWISS CHARD <15 < 15 < 17 9517218 08/15/95 EGGPLANT < 11 <9 <10 9517219 08/15/95 SQUASH < 11 <9 <9 9517220 08/15/95 BROCCOLI < 21 < 26 < 21 9520449 09/18/95 EGGPLANT < 28 < 30 < 24 9520450 09/18/95 BROCCOLI < 23 < 24 < 20 9520451 09/18/95 COLLARDS < 16 < 15 <17 9522432 10/16/95 EGGPLANT < 22 < 30 < 26 9522433 10/16/95 COLLARDS < 19 < 1B < 18 9522434 10/16/95 BROCCOLI < 25 < 23 < 20 9524489 11/15/95 BROCCOLI < 19 < 19 < 16 9524490 11/15/95 RAPE < 13 < 14 < 14 9524491 11/15/95 EGGPLANT < 17 < 19 < 15 9526273 12/15/95 CABBAGE < 21 < 16 < 17 9526274 12/15/95 BROCCOLI < 20 < 14 < 17 9526275 12/15/95 COLLARDS < 32 < 22 < 25 PAGE 37

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 5.3 SAMPLE: VEGETATION: BROADLEAF, (1-131, GAMMA) COLLECTION: MONTHLY WHEN AVAILABLE UNITS: pCi%g LOCATION: SECTOR R 1.2 KM

• LAB NO.

COLLECTION SAMPLE TYPE l-131 Cs-134 Cs-137 DATE REQ'D Li D 60 60 80 9500534 01/11/95 MUSTARD GREENS < 28 < 24 < 22 9500535 01/11/95 COLLARDS < 21 < 17 < 20 9500536 01/11/95 TURNIP GREENS < 26 < 22 < 22 9502818 02/13/95 RAPE < 12 < 15 <14 9502819 02/13/95 MUSTARD < 14 < 14 <12 9502820 02/13/95 TURNIPS < 27 < 22 < 23 9504605 03/15/95 COLLARDS <19 < 24 < 19 9504606 03/15/95 MUSTARDS < 25 < 26 < 22 9504607 03/15/95 RAPE < 17 < 2Q < 21 9507042 04/13/95 COLLARDS < 17 < 17 < 17 9507043 04/13/95 SWISS CHARD < 14 < 19 < 14 9507044 04/13/95 MUSTARD GREENS < 14 < 15 < 16 9509604GG 05/17/95 COLLARDS < 19 < 26 < 18 9509605 05/17/95 KALE < 23 < 21 < 23 9509606GG 05/17/95 SWISS CHARD < 13 <18- <15 9509607 05/17/95 SWISS CHARD < 19 < 20 < 16 9509608GG 05/17/95 KALE < 22 < 18 < 19 9509609 05/17/95 SUNFLOWER LEAVES < 24 < 25 < 23 9512005 06/14/95 SWISS CHARD < 21 < 17 < 16 9512006 06/14/95 RAPE < 36 < 33 < 29 9512007 06/14/95 BROCCOLI <19 < 25 < 19

• See Summary of Monitoring Results, Page 1.

PAGE 38

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. - 5.4 SAMPLE: VEGETATION: BROADLEAF, (1-131, GAMMA) COLLECTION: MONTHLY WHEN AVAILABLE r UNITS: pCWg LOCATION: SECTOR H, 0.64 KM

• LAB NO.

COLLECTION SAMPLE TYPE l-131 Cs-134 Cs-137 OATE REQ'D LLD 80 80 80 9514269 07/12/95 COLLARDS < 10 < 11 <9 9514270 07/12/95 KALE < 18 < 18 < 20 9514271 07/12/95 SQUASH < 20 < 20 < 17 i 9514274GG 07/12/95 TURNIP GREENS < 22 < 1B < 18 9517221 08/1595 SQUASH < 15 < 15 < 15 l 9517222 08/15/95 KALE < 16 < 16 <15 l 9517223 08/15/95 COLLARDS < 11 < 12 < 14 i 9520452 09/18/95 COLLARDS < 25 < 29 < 25 9520453 09/18/95 SQUASH < 25 < 27 < 20 9520454 09/18/95 KALE < 23 < 21 < 22 9522435 10/16/95 COLLARDS < 17 < 17 < 14 l' 9522436 10/16/95 SWISS CHARD < 17 < 19 < 14 l 9522437 10/16/95 KALE < 20 < 25 < 19 9524492 11/15/95 RAPE < 15 < 17 < 15 9524493 11/15/95 CABBAGE < 20 < 20 < 20 9524494 11/15/95 COLLARDS < 23 < 20 < 24 9526276 12/15/95 RAPE < 18 < 13 < 12 9526277 12/15/95 CABBAGE < 15 < 16 < 12 9526278 12/15/95 COLLARDS < 14 < 11 <9

• See Summary of Monitoring Results, Page 1.

PAGE 39

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO.: 6.1 SAMPLE: MILK SAMPLES,(1-131 GAMMA) COLLECTION: SEMIANNUALLY UNITS: pCi/L LOCATION: ALCORN STATE LAB NO. COLLECTION 1-131 Cs-134 Cs-137 Ba-140 La-140 DATE REQV LLD 1.0 15 18 60 15 9509987 05/18/95 < 0.9 <3 <3 < 13 <4 9509988GG 05/18/95 < 0.6 <2 <1 <6 <2 9524611 11/15/95 < 0.6 <3 <3 < 10 <3 f' h I k 1. PAGE 40

1 4 RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. :7.1 SAMPLE: FISH SAMPLES, ( GAMMA) COLLECTION: SEMIANNUALLY UNITS: pCilkg LOCATION : MISS. RIVER UP LAB NO. COLLECTION DATE SAMPLE TYPE Mn.54 Fe-59 Co-58 Co40 Zn45 Cs-134 Co-137 REQ'D LLD 130 260 130 130 260 130 150 9609610 05/12/95 SPOONBILL <9 <13 <9 <8 < 20 < 10 <9 9525343 11/27/95 BUFFALO < 10 < 23 <9 < 12 < 26 < 10 < 10 9525345GG 11/27/95 CATFISH < 14 < 19 < 15 < 15 < 27 < 15 < 14 J PAGE 41 .a

C RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT l TABLE NO. :7.2 SAMPLE: FISH SAMPLES, ( GAMMA) COLLECTION: SEMIANNUALLY i UNITS: pCilkg f LOCATION : MISS. RIVER DOWN LAB NO. COLLECTION DATE SAMPLE TYPE MMi4 Fe-59 Co-58 Co40 ZM55 Cs-134 Cs-137 REQV LLD 130 260 130 130 200 130 150 9609611 05/12/95 CARP <7 < 12 <8 <7 < 17 <8 <7 i 9625344 11/27/95 GOO < 17 < 36 < 17 < 16 < 40 < 16 < 18 9525346GG 11/27/95 GOO <15 < 24 < 15. < 17 < 36 < 19 < 18 t t i f i 1 6 ) i i I PAGE 42

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TABLE NO. : 8.1 SAMPLE: SEDIMENT, ( GAhSAA) COLLECTION: SEMIANNUALLY UNITS: pCilkg LOCATION LAB NO. COLLECTION Cr-51 Mn44 Fe-59 CW Co40 Cs-134 Cs-137 DATE REQT) LLD ,A N/A N/A N/A N/A 150 180 W SEDCONT, UPSTREAM 9511070 06/06/95 < 94 <9 < 15 <9 <8 < 11 <7 SEDCONT'GG", UPSTREAM 9511069 06/06/95 < 113 <6 < 16 < 10 <8 <12 <7 SEDCONT, UPSTREAM 9525485 12/01/95 < 69 <8 < 12 <8 <7 < 10 8 +/- 6 SEDBAR, BARGE SLIP 9511072 06/06/95 < 198 276 +/-21 < 30 ' 42 +/- 15 473 +/- 25 < 22 126 +/- 19 SEDBAR'GG", BARGE SLIP 9511071 06/06/95 < 152 271 +/- 17 < 25 36 +/- 12 487 +/- 22 < 19 122 +/- 13 SEDBAR, BARGE SLIP 9525486 12/01/95 < 93 21 +/- 2 < 26 < 11 17 +/- 3 <13 39 +/- 3 SEDHAM. HAMILTON L 9511074 06/06/95 < 171 < 10 < 23 < 15 < 13 < 17 52 +/- 12 SEDHAM"GG", HAMILTON L 9511073 06/06/95 <147 < 13 < 23 < 13 < 13 < 16 43 +/- 10 SEDHAM, HAMILTON L 9525487 12/01/95 < 124 < 15 < 33 c 14 < 14 < 17 60 +/- 5 PAGE 43

EPA CROSS CHECK RESULTS EPA PREP DATE MEDIA NUCLIDE EPA ES1, SYSTEM NORM DEV. DATE RESULTS RESULTS CHEMISTRY KNOWN ISSUED RESULTS 09/30/94 02/06/95 MILK I-131 75.0 71.67 -0.72 GAMMA Cs-137 59.0 62.67 1.27 (pCi/L) K (Total) 1715.0 1653.33 -1.24 i 10/28/94 02/13/95 WATER Gross Beta 23.0 19.00 -1.39 -l (pCi/L) 11/04/94 02/14/95 WATER

• Co-60 59.0 69.33 3.58' (pCi/L)

Zn-65 100.0 128.33 4.91 Cs-134 24.0 27.33 1.15 Cs-137 49.0 60.33 3.93* Ba-133 73.0 97.00 5.94* 02/03/95 04/21/95 WATER I-131 100.0 100.00 0.00 '(pCi/L) 03/10/95 05/18/95 WATER Tritium 7435.00 7030.00 -0.94 (pCi/L) 04/18/95 08/16/95 BLIND B Co-60 29.0 29.33 0.12 (pCi/L) Cs-134 20.0 18.67 -0.46 Cs 137 11.0 11.00 0.00 Gross Beta 86.8 77.93 -1.50 06/09/95 Unofficial WATER Co-60 40.0 39.66 -0.12 (pCi/L) Zn-65 76.0 80.00 0.87 Cs-134 50.0 45.00 -1.73 Cs-137 35.0 35.66 0.23 Ba-133 79.0 76.66 -0.51 l 07/21/95 10/31/95 WATER Gross Beta 19.4 23.4 1.37 (PCi/L) 08/04/95 10/02/95 WATER Tritium 4872.0 4823.33 -0.17 (pCi/L) I

• Each isotope measured by ESI was 14-33% higher than values reported by the U.S. EPA. When EPA

) published the results on 2/14/95, the ESI cross-check sample had been disposed of. Because the EPA l i sample was inadvertently disposed. no follow-up action could be taken on that particulate sample. Since all measurements made by ESI were higher than the EPA values, it appears that a dilution error when preparing the sample was the cause for the discrepancy between ESI values and the EPA values. A new liquid standard was purchased from Analytics, Inc. in March 1995 and new efficiency curves were calculated using a 3.5 liter Marinelli geometry. 'Ibere were no appreciative differences between the efficiency curves calculated before and after the Nov 4,1994 cross-check sample was analyzed. A 3.5L . resin standard prepared by Analytics, Inc. was analyzed, resulting in efficiency curves which were j j approximately 90 percent as efficient as deionized water. These results are theoretically in agreement since the Analytics, Inc. resin standard has a density of 1.15 kg/L. No data from gamma spectroscopy would be affected by this apparent dilution error. l PAGE 44 \\

Attachment il 1995 Thermoluminescent Dosimetry Report I II-i 1 ]

l GRAND GULF NUCLEAR STATION 1995 THERMOLUMINESCENT DOSIMETRY REPORT JANUARY-DECEMBER i ANALYSIS BY: Waterford3 Dosimetry 1 GGTLDS 1

~,, + +. -.. - ~ l l l TABLE 1 inner Rina TLDs. Within Two (2) Mlle Radius Reauired by ODCM Specifications Location 1st Qtr' 95 2nd Qtr' 95 3rd QTR' 95 4th Qtr' 95 Mean'95 (mrom) (mrem). (mrem) (mrem) (mrem) i l M-16

• 21.0 R) 29.0 0) 20.5 l

23.5 l l M-17 24.0 19.5 24.3 22.0 l 22.5 l M-19 21.0 20.0 20.0 19.0 l 20.0 l l M-20 0) 18.0 17.5 19.0 l 18.2 l l M-21 23.0 21.0 22.0 23.0 l 22.3 l l M-22 19.5 24.0 18.5 27.5 0) l 22.4 l M-23 20.0 26.5 0) 19.5 21.5 l 21.9 l M-25 16.5 G) 18.0 19.5 l 18.0 l M-27 23.5 23.5 0) 20.5 21.5 l 22.3 l l M-28 19.5 21.0 19.0 21.5 l 20.3 l l M-41 15.0 16.5 13.5 14.5 l 14.9 l l M-45 17.0 18.5 17.0 16.5 l 17.3 l l M-86 18.0 16.5 , 16.0 17.0 l 16.9 l M-92 17.0 16.0 16.0 16.0 l 16.3 l M-93 23.5 19.5 22.0 20.5 l 21.4 l M-94 20.0 18.5 20.0 18.5 19.3 l Mean i s.d. 19.9 i 2.8 19.9 3.1 20.0 i 3.7 19.9 i 3.1 l l Location with highest annual mean. t l m Value not representative of historical readings, therefore not used; TLD may have been l damaged by water.

9) No data; TLD missing in field.

0) Data not consistent with previous quarters; TLD may have been damaged by water.

l 1 i e GGTLDS 2

-... = = _ - - - - j TABLE 2 Outer Rina TLDs. Within Six (6) Mile Radius Reauired by ODCM Specifications Location ist Qtr' 95 2nd Qtr

• 95 3rd Qtr' 95 4th Qtr'95 Mean'95 (mrem)

(mrem) (mrem) (mrem) (mrem) M-36 18.5 18.5 18.0 17.5 l 18.1 l I M-40

• 23.0 20.0 20.0 23.5 l

21.6 l M-47 17.5 9) 16.0 17.5 l 17.0 l M-48 18.5 20.5 18.5 24.0 l 20.4 l M-49 20.0 21.5 19.5 21.5 l 20.6 l M-50 19.0 20.0 19.0 19.0 l 19.3 l M-51 17.0 19.0 17.0 17.5 l 17.6 l M-55 20.0 21.0 19.0 19.0 l 19.8 l M-56 19.5 21.0 19.5 19.0 l 19.8 l M-57 19.5 20.5 18.0 20.0 l 19.5 l M-58 14.0 G) G) 15.5 l 14.8 l M-59 16.0 25.0(1) 15.0 15.0 l 17.8 l M-88 24.5(1) 29.0(1) 14.5 16.5 l 21.1 l M-89 18.0 20.5 17.0 20.0 l 18.9 l M-90 17.0 0) G) 17.0 l 17.0 l M-91 18.0 19.0 18.0 22.5 19.4 i Mean i s.d. 18.8 2.5 21.2 i 2.8 17.8 i 1.7 19.1 i 2.7 Location with highest annual mean. m Data not consistent with previous quarters; TLD may have been damaged by water. m No data; TLD was ml: sing in field. GGTLDS 3

) TABLE 3 Special Interest Area TLDs Reauired by ODCM Specifications Location 1st Qtr

• 95 2nd Qtr
• 95 3rd Qtr' 95 4th Qtr' 95 l

Mean'95 l (mrem) (mrem) (mrem) (mrem) (mrem) M-01

• 21.5 21.0 20.0 22.5 l

21.3 l M-07 20.5 21.0 20.0 20.0 l 20.4 l M-09 20.5 20.5 18.5 19.0 l 19.6 l M-10 19.0 19.0 17.5 19.0 l 18.6 l M-33 18.0 0) 17.5 18.5 l 18.0 l M-38 18.0 0) 17.0 21.0 l 18.7 l M-39 17.0 20.0 17.0 18.0 18.0 Mean i s.d. 19.2 i 1.7 20.3 i 0.8 - 18.211.3 19.7 i 1.6 Control TLD Location 1st Qtr

• 95 2nd Qtr' 95 3rd Qtr' 95 4th Qtr' 95 Mean'95 (mrem)

(mrem) (mrem) (mrem) (mrem) M-14 21.0 21.5 20.5 20.0 20.8 l Shield TLD Location ist Qtr

• 95 2nd Qtr' 95 3rd Qtr'95 4th Qtr' 95 Mean'95 (mrem)

(mrem) (mrem) (mrem) (mrem) M-00 11.0 11.0 9.0 9.0 10.0

• Location with highest annual mean.

m No data; TLD was missing in field. GGTLDS 4

TABLE 4 J l Protected Area Boundary Not Reauired by ODCM Specifications 1 Location 1st Qtr' 95 2nd Qtr' 95 3rd Qtr' 95 4th Qtr' 95 Mean

• 95 (mrem)

(mrem) (mrem) (mrem) (mrem). M-61 40.5 20.0 34.5 42.0 l 34.3 M-62 55.5 22.0 44.5 53.0 l 43.8 M-63 20.0 16.5 18.5 22.5 l 19.4 M-64 24.0 19.5 19.0 23.0 l 21.4 M-65 21.5 18.0 22.0 21.5 l' 20.8 ) i M-66 23.0 18.0 23.5 23.5 l 22.0 l M-67 29.0 (1) 26.5 28.5 l 28.0 l l M-68 57.0 28.0 57.0 63.5 l 51.4 l M-69

• 81.0 28.0 56.0 78.0 l

60.8 l M-70 65.5 24.5 52.5 64.0 l 51.6 l M-71 24.5 15.0 21.0 24.5 l 21.3 l M-72 21.0 14.5 17.5 21.5 l 18.6 l M-74 18.5 18.0 15.0 16.0 l 16.9 l L M-76 20.5 15.0 18.5 18.5 l 18.1 l M-77 19.0 15.0 17.0 17.0 l 17.0 l M-81 19.0 18.0 16.0 22.0 18.8 Mean i s.d. 33.7 i 20.0 19.3 i 4.5 28.7 i 15.2 33.7 119.9 Duplicate TLDs Location 1st Qtr'95 2nd Qtr

• 95 3rd Qtr
• 95 4th Qtr' 95 l

Mean

• 95 l

(mrem) (mrem) (mrem) (mrem) (mrem) M-31 19.0 19.0 18.0 19.0 l 18.8 l M-32 18.5 (1) 17.0 19.0 l 18.2-l M-60 22.0 20.0 19.5 18.0 19.9 Mean i s.d. 19.8 i 1.9 19.5 i 0.7 18.2 i 1.3 18.710.6

• Location with highest annual mean.

() No data; TLD was missing in field. GGTLDS 5

}}