ML021230094

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2001 Annual Environmental Operating Report
ML021230094
Person / Time
Site: Callaway Ameren icon.png
Issue date: 04/25/2002
From: Blosser J
AmerenUE
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
ULNRC-4646
Download: ML021230094 (42)


Text

One Ameren Plaza 1901 Chouteau Avenue PO Box 66149 St. Louis, MO 63166-6149 314.621.3222 April 25, 2002 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20556 Gentlemen:

ULNRC-4646 DOCKET NUMBER 50-483 UNION ELECTRIC COMPANY CALLAWAY PLANT FACILITY OPERATING LICENSE NPF-30 2001 ANNUAL ENVIRONMENTAL OPERATING REPORT Please find enclosed the 2001 Annual Environmental Operating Report for the Callaway Plant. This report is submitted in accordance with section 5.6.2 of the Technical Specification and Appendix B to the Callaway Plant Operating License.

Very truly yours,

  • fr.

John D. Blosser Manager - Regulatory Affairs BFH/jdg Enclosure a subsidiary of Ameren Corporation Union Electric S"Ameren UE L'ý00 ý

cc:

M. H.

Fletcher Professional Nuclear Consulting, Inc.

19041 Raines Drive

Derwood, MD 20855-2432 Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive Suite 400 Arlington, TX 76011-8064 Senior Resident Inspector Callaway Resident Office U.S.

Nuclear Regulatory Commission 8201 NRC Road

Steedman, MO 65077 Mr.

Jack Donohew (2)-

OPEN BY ADDRESSEE ONLY Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 1 White Flint, North, Mail Stop OWFN 7E1 11555 Rockville Pike Rockville, MD 20852-2738 Manager, Electric Department Missouri Public Service Commission P.O. Box 360 Jefferson City, MO 65102 Regional Administrator Department of Natural Resources Central Regional Office P.

0. Box 176 Jefferson City, MO 65102-0176 Mr. Gerhard K.

Samide ANI Account Engineer Town Center, Suite 3005 29 S.

Main St.

West Hartford, CT 06107-2445

2001 Callaway Plant Annual Radiological Environmental Operating Report SSWI "WAmewn YE MET TOWER E

Table of Contents 1.0 Executive Summary..................................................................................................

1 2.0 Radiological Monitoring Program................................................................................

2 2.1 Introduction..................................................................................................................

2 2.2 Program Design.....................................................................................................

2 2.3 ProgramDescription.................................................................................................

2 2.4 Sampling Program Execution and Results...............................................................

10 2.4.1 Program Modifications and Exceptions.............................................................

10 2.4.2 Detection and Reporting Limits........................................................................

10 2.4.3 Quality Control Program...................................................................................

12 2.4.4 Data Interpretations.........................................................................................

12 2.4.5 Waterborne Pathway.........................................................................................

12 2.4.6 Airborne Pathway..............................................................................................

15 2.4.7 Ingeston Pathway..............................................................................................

16 2.5 Land Use Census....................................................................................................

19 2.6 Cross-Check Results................................................................................................

20 2.7 Data Reporting Conventions...................................................................................

23 2.8 Radilogical Environmental Monitoring Program Annual Summary........................ 23 2.9 Individual Sample Results.......................................................................................

26 3.0 Non-Radiological Monitoring Program....................................................................

38 List of Figures I

Distant Collection Locations II Near Site Collection Locations List of Tables I

Sampling Locations II REMP Sample Collection Frequencies and Requried Analysis III Detection Capabilities for Radiological Environmental Sample Analysis IV 2001 Land Use Census Results V

2001 Laboratory Quality Control VI REMP Summary VII Airborne VIII Airborne Composites IX Soil X

Vegetation XI Surface Water XII Ground Water XIII Sediments XIV Fish XV Milk XVI Direct Radiation i

1.0 Executive Summary This Annual Radiological Environmental Operating Report describes the Union Electric Company, Callaway Plant Radiological Environmental Monitoring Program (REMP), and the program results for the calendar year 2001. It is submitted in accordance with section 5.62 of the Callaway Plant Technical Specifications.

Section 2.0 describes the Radiological Monitoring Program. Included is the identification of sampling locations, descriptions of sampling and analysis procedures, analysis results, data interpretations and program modifications.

Quality assurance results, sampling deviations, unavailable samples and program changes are also discussed.

Section 3.0 describes the Non-Radiological Monitoring Program.

Included are any unusual or important events, Environmental Protection Plan non-compliance, non-routine reports and plant design and operation environmental evaluations.

During 2001 the Callaway Plant operated in compliance with the Off Site Dose Calculation Manual requirements. Comparison of results for 2001 to pre-operational data and data from previous years show no significant differences.

Results from the REMP indicate the Callaway Plant has had no significant radiological impact on the health and safety of the public or on the environment.

I

Radiological Monitoring Program 2.1 Introduction This report presents an analysis of the results of the REMP conducted during 2001 for Union Electric Company, Callaway Plant.

The radiological environmental monitoring program began in April 1982.

The objectives of the REMP are to monitor potential critical pathways of radioeffluent to man and determine the radiological impact on the environment caused by operation of Callaway Plant.

Callaway Plant consists of one 1239 MWe pressurized water reactor, which achieved initial criticality on October 2, 1984. The plant is located on a plateau approximately ten miles southeast of the City of Fulton in Callaway County, Missouri and approximately eighty miles west of the St. Louis metropolitan area. The Missouri River flows by the site in an easterly direction approximately five miles south of the site at its closest point.

2.2 Program Design The sample locations, frequency of sampling and sample analysis requirements originate from the Callaway Plant Off-Site Dose Calculation Manual, DNR Missouri State Operating Permit and continuation of the Callaway Plant Pre-Operational Environmental Monitoring Program.

Samples are collected from waterborne, airborne, ingestion and direct radiation pathways. The types of sample media collected are: milk, surface water, groundwater, shoreline sediment, bottom sediment, soil, wetlands, fish, vegetation, airborne particulate, airborne radioiodine and direct radiation (TLD).

Indicator samples are collected from locations, which could be influenced by plant effluents. Control samples are collected at locations that are not significantly affected by plant operation.

Samples are collected by Union Electric personnel or contractors to Union Electric and shipped to Environmental, Inc. Mid West Laboratory for analysis.

The data is reported monthly and summarized in the annual report. TLD's are analyzed by Union Electric personnel.

2.3 Program Description Sample locations for the REMP are shown in Figures I, and II. Table I identifies the location code, description and sample type. Table II specifies the collection frequency and required analysis.

2 2.0

Distant Collection Locations t

01-1F CQi 3

Figure I LEGEND:

0 = TLD H

MILK A = AIR U = SOIL I-WATER 0 = FISH, SEDIMENT I

VEGETATION

Figure II Near Site Collection Locations TTOWER E

050 LEGEND:

0 = TILD I! = MILK A= AIR U = SOIL

=

-WATER 0

= FISH, SEDIMENT

  • =

VEGETATION 4

Sampling Locations Location Code Description' Sampk Types2 la 10.8 mi. NW, City of Fulton on Hwy Z, IDM 0.65 mi. East of Business 54, West of Campus Apartments 3

1.2 mi. NW; 0.1 mi. West of Hwy CC IDM on Gravel Road, 0.8 mi. South Hwy 0, Callaway Electric Cooperative Utility Pole No. 18559.

5 1.3 mi. ENE; Primary Meteorological IDM Tower.

6 2.0 mi. W; County Road 428, 1.2 mi.

IDM West of Hwy CC, Callaway Electric Cooperative Utility Pole No. 18609.

7 1.4 mi. S; County Road 459, 2.6 mi.

IDM North of Hwy 94, Callaway Electric Cooperative Utility Pole No. 35097 9

3.8 mi. S; NW Side of the County Road IDM 459 and Hwy 94 Junction, Callaway Electric Cooperative Utility Pole No.

06754.

10 3.9 mi. SSE; Hwy 94, 1.8 mi. East of IDM County Road 459, Callaway Electric Cooperative Utility Pole No. 12182.

1 a 4.7 mi. SE; City of Portland, Callaway IDM Electric Cooperative Utility Pole No.

12110.

14 4.9 mi. ESE; SE Side of Intersection D IDM and 94, Callaway Electric Cooperative Utility Pole No. 11940.

17 3.8 mi. E; County Road 4053, 0.3 mi.

IDM East of Hwy 94, Kingdom Telephone Company Pole No. 3X12.

32 5.4 mi. WSW; Hwy VV, 0.6 mi. West of IDM County Road 447, Callaway Electric Cooperative Utility Pole No. 27031.

5 Table I 18a 3.7 mi. ENE; East side of Hwy D, 0.5 mi. South of 0, Callaway Electric Cooperative Utility Pole No. 38579.

20 4.7 mi. NE; City of Readsville, Callaway Electric Cooperative Utility Pole No.

12830.

21 3.8 mi. NNE; County Road 155, 1.9 mi. North of Hwy 0, Callaway Electric Cooperative Utility Pole No. 19100 22a 1.9 mi. NNE; North side of Hwy 0, 100 feet East of County Road 150, Callaway Electric Cooperative Utility Pole No. 31094.

23 6.6 mi. NNE; City of Yucatan, Callaway Electric Cooperative Utility Pole No.

12670 263 11.7 mi. E; Town of Americus, Callaway Cooperative Utility Pole No. 11159.

273 9.3 mi. ESE; Town of Bluffton, Callaway Electric Cooperative Utility Pole No.

11496.

30a 4.4 mi. SSW; City of Steedman, N side of Belgian Dr., 150 feet East of Hwy CC, Callaway Electric Cooperative Utility Pole No. 06557.

31a 7.8 mi. SW; City of Mokane, Junction Hwy C and County Road 400, 0.9 mi.

North of Hwy 94, Callaway Electric Cooperative Utility Pole.

IDM IDM IDM IDM IDM IDM IDM IDM IDM

Sampling Locations Continued Location Code Description' 32a 5.0 mi. WSW; County Road 447, Callaway Electric Cooperative Utility Pole No. 06354.

33 7.4 mi. W; City of Hams Prairie, SE of Hwy C and AD Junction 34 9.5 mi. WNW; NE Side of Hwy C and County Road 408 Junction.

35 5.8 mi. NNW; City of Toledo, Callaway Electric Cooperative Utility Pole No.

17684.

36 4.9 mi. N; County Road 155, 0.8 mi.

South of County Road 132, Callaway Electric Cooperative Utility Pole No.

19137.

37 0.5 mi. SSW; County Road 459, 0.9 mi.

South of Hwy CC, Callaway Electric Cooperative Utility Pole No. 35077.

38 4.6 mi. NNW; County Road 133, 1.5 mi. South of Hwy UU, Callaway Electric Cooperative Utility Pole No. 34708.

39 5.4 mi. NW; County Road 111, Callaway Electric Cooperative Utility Pole No. 17516.

39a 5.0 mi. NW County Road 111, Callaway Electric Cooperative Utility Pole No. 17526 40 4.2 mi. WNW; NE Side of County Road 112 and Hwy 0, Callaway Electric Cooperative Utility Pole No. 06326.

S qSample Types2 IDM IDM IDM IDM IDM IDM IDM IDM IDM IDM 49 1.6 mi. E; County Road 448, Callaway Electric Cooperative Utility Pole No.

06959, Reform Wildlife Management Parking Area.

6 Table I 41 4.9 mi. W; Hwy AD, 2.8 mi. East of Hwy C, Callaway Electric Cooperative Utility Pole No. 18239.

42 4.4 mi. SW; County Road 447, 2.6 mi.

North of County Road 463, Callaway Electric Cooperative Utility Pole No.

06326.

43 0.5 mi. SW; County Road 459, 0.7 mi.

South of Hwy CC, Callaway Electric Cooperative Utility Pole No. 35073.

44 1.6 mi. WSW; Hwy CC, 1.0 mi. South of County Road 459, Callaway Electric Cooperative Utility Pole No. 18769.

45 1.0 mi. WNW; County Road 428, 0.1 mi. West of Hwy CC, Callaway Electric Cooperative Utility Pole No. 18580.

46 1.5 mi. NNW; NE Side of Hwy CC and County Road 466 Intersection, Callaway Electric Cooperative Utility Pole No.

28242.

47 1.0 mi. N; County Road 448, 0.9 mi.

South of Hwy 0, Callaway Electric Cooperative Utility Pole No. 28151.

IDM 48 0.4 mi. NE; County Road 448, 1.5 mi.

South of Hwy 0, Plant Security Sign Post.

IDM IDM IDM 1DM IDM IDM IDM IDM IDM

Sampling Locations Continued Location Code Description' S

50 0.9 mi. SSE; County Road 459, 3.3 mi.

North of Hwy 94, Callaway Electric Cooperative Utility Pole No. 35086.

51a 0.3 mi. SE; Owner Control Fence, SE of the Water Treatment Plant.

52 0.4 mi. ESE; Light Pole Near the East Plant Security Fence 603 13.5 mi. SW; Callaway Electric Cooperative Utility Pole No. 43744 just past Tebbetts City sign.

Al 1.3 mi. ENE; Primary Meteorological Tower.

A7 9.5 mi. NW; C. Bartley Farm.

A8 0.9 mi. NNE; County Road 448, 0.9 miles South of Hwy 0.

A9 1.9 mi. NNW; Community of Reform.

B3 1.8 mi. NNW; 0.3 mi. East of the 0 and CC Junction, Callaway Electric Cooperative Utility Pole No. 18892.

DOI 5.0 mi. SE; Holzhouser Grocery Store/

Tavern (Portland, MO).

F05 0.9 mi. SSE; Onsite Groundwater Monitoring Well.

F15 3 0.4 mi. NNE; Onsite Groundwater Monitoring Well.

ample tyesý IDM IDM IDM IDM
APT, MO
APT, MO
APT, MO
APT, AMO
APT, MO WWA WWA WWA M6 2.6 mi. NW, Pierce's Farm (Cow's Milk)

MLK M83 18.7 mi. WSW, Kissock's Farm, South of New Bloomfield, MO (Cow's Milk).

V33 15.0 mi. SW; Beazley Farm, West of Tebbetts, MO.

V9 2.0 mi. WNW; Meehan Farm VIO 3.4 mi. SSW; Brandt Farm VI1 3.2 mi. NW; Hickman Farm V12 3 18.7 mi. WSW, Kissock's Farm, South of New Bloomfield, MO (Cow's Milk).

A3'4 4.9 mi. SSE; 0.6 River Miles Upstream of Discharge North Bank.

C4 4.9 mi. SE; 1.0 River Miles Downstream of Discharge North Bank.

S013 4.7 mi. SSE; 105 feet Upstream of Discharge North Bank.

S02 4.9 mi. SE; 1.1 River Miles Downstream of Discharge North Bank.

F2 1.64 mi. SW; Callaway Plant Forest Ecology Plot F2.

F6 1.72 mi. NE; Callaway Plant Forest Ecology Plot F6.

PR3 1.02 mi. ESE; Callaway Plant Prairie Ecology Plot PR3.

7 Table I MLK MLK SOL FPL FPL FPL FPL

AQS, AQF
AQS, AQF SWA SWA SOL SOL SOL

Tab/e I Location Code Description' PR7 0.45 mi. NNW; Callaway Plant Prairie Ecology Plant PR7.

W4 0.68 mi. SSE; Callaway Plant Wetlands, SW Bank W2 0.60 mi. SSE; Callaway Plant Wetlands, Inlet Area W13 0.61 mi. SE; Callaway Plant Wetlands, High Ground W3 0.72 mi. SSE; Callaway Plant Wetlands, Discharge Area Distance is measured from the centerline of the reactor.

S q

AMO = Air Iodine, APT = Air Particulate, AQF = Fish, AQS =

Sediment, FPL = Leafy Green Vegetables, IDM = TLD, MLK Milk, SOL = Soil, SWA = Surface Water, WWA = Ground Water.

3 Control Locations.

4 The fish collection area for location "A" is between 0.6 river miles and 3.0 river miles upstream of the plant discharge. Location "C" is between the plant discharge and 1.5 miles downstream.

8 Sampling Locations Continued ample Iypes 2

SQL SQL SQL SQL SOL

l II REMP Sample Collection Frequencies and Required Analysis' Sample Sample Type Collection Frequency Required Analysis Airborne Iodine MO Weekly 1-131 weekly Air Particulate APT Weekly Gross Beta weekly2 and Gamma Isotopic of quarterly filter composite Soil SOL Annually Gamma Isotopic (Continuation of pre-operational program)

Fish AQF Semiannually Gamma Isotopic Sediment (Shoreline AQS Semiannually Gamma Isotopic and Bottom)

(Bottom sample NPDES requirement)

Leafy Green FPL Monthly during the 1-131, and Gamma Isotopic Vegetables growing season TLD IDM Quarterly Gamma Dose Milk MLK Semimonthly when animals are 1-131, and Gamma Isotopic on Pasture; monthly otherwise Surface Water SWA Monthly composite H-3 and Gamma Isotopic Ground Water WWA Quarterly Grab H-3 and Gamma Isotopic (NPDES Requirement)

Samples required by ODCM and NPDES permit. Additional sampling is performed as a continuation of the pre-operational monitoring program.

If gross beta activity is greater than the established baseline activity level gamma isotopic analysis is performed on the individual sample.

9

Radiological Monitoring Program Continued 2.4 Sampling Program Execution and Results 2.4.1 Program Modifications and Exceptions During 2001 no significant changes were made to the Radiological Environmental Monitoring Program.

The Radiological Environmental Monitoring Program was executed as described in the ODCM with any exceptions listed in this report.

2.4.2 Detection and Reporting Limits Table III gives the required detection limits for radiological environmental sample analysis. For each sample type, the table lists the detection level for each isotope.

The lower limit of detection (LLD) used in this report is described in NRC Regulatory Guide 4.1 Rev.

1, "Program for Monitoring Radioactivity in the Environs of Nuclear Power Plants" and the NRC Branch Technical Position, November 1979, "An Acceptable Radiological Environmental Monitoring Program".

Positive sample results are reported with a 2 sigma counting uncertainty (corresponding to the 95%

confidence level). In cases where the activity is found to be below the sample analysis minimum detection level it is reported as Not Detected.

Aerial view of the Callaway Plant site. Included is some of the land worked by local farmers to produce feed for cattle.

10

Detection Capabilities for Radiological Environmental Sample Analysis' Fish (pCi/kg wet)

Milk (pCi/I)

Food Products (pCi/kg wet)

Soil and Sediment (pCi/kg dry) 130 260 130 I

130 150 15 18 15 60 60 80 150 180 I This list does not mean only these nuclides will be detected and reported. Other peaks which are measurable and identifiable will be reported.

2 Total activity, parent plus daughter activity 11 Table III Airborne (pCi/m3)

Water (pCi/i) 4 0.01 3000 Analysis Gross beta H-3 Mn-54 Fe-59 Co-58, -60 Zr-Nb-9 54 1-131 Cs-134 Cs-137 Ba-La-140 2

15 30 15 15 1000 15 18 15 0.07 0.05 0.06

Radiological Monitoring Program Continued 2.4.3 Quality Control Program The contractor laboratory (Environmental, Inc.

Midwest Laboratory) maintains a quality control (QC) program in accordance with Regulatory Guide 4.15. The Program includes laboratory procedures designed to prevent cross-contamination and ensure accuracy and precision of analyses. QC checks include blind samples, duplicate samples, and spiked samples as necessary to verify laboratory analysis activities are being maintained at a high level of accuracy.

The contractor laboratory participates in the Department of Energy's Environmental Laboratory Quality Assessment Program (EML), Mixed Analyte Performance Evaluation Program (MAPEP) and Environmental Resource Associates (ERA). The results of these crosscheck programs are presented in Section 2.6.

The Callaway Plant Personnel Dosimetry program is certified by the National Voluntary Laboratory Accreditation Program (NVLAP) of the National Institute of Standards and Technology (NIST). The Environmental TLD Program has demonstrated compliance with the recommendations of Regulatory Guide 4.13. Quality control checks are performed including blanks, blind samples, daily performance checks and quarterly crosschecks.

2.4.4 Data Interpretations Sample analysis results are evaluated to determine if the result was due to the operation of the Callaway Plant or other sources.

One evaluation method used is the indicator-control concept. Most sample types are collected at both indicator (areas potentially affected by plant operations) and control locations (areas not significantly affected by plant discharge). A possible plant effect would be indicated if the detected level at an indicator location was statistically larger than at the control location.

Another method involves determining if the result originated from weapons testing. The indicator or control sample result can be compared to established environmental levels produced from weapons testing.

Sample results can also be compared with preoperational levels or samples collected in other parts of the country. Results can also be related to events known to have caused elevated levels of radiation in the environment.

2.4.5 Waterborne Pathway Surface Water Analysis Tritium: A 60-70 ml aliquot of water is purified by distillation. A portion of the distillate is transferred to a counting vial and scintillation fluid added. The contents of the vial are thoroughly mixed and counted in a liquid scintillation counter.

Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Monthly composite samples of surface water from the Missouri River are collected from one indicator location (S02) and from one control location (SO 1) and shipped to Environmental, Inc., Midwest Laboratory for analyses..

Results The indicator water sampler (S02) was operational 60% of the time during 2001. This sampler is checked daily. Immediate action is taken to place the sampler back in service when a problem is identified. If the sampler cannot be returned to service, daily grab 12

Radiological Monitoring Program Continued Sampling of the Missouri River is accomplished using an automated compositor. Samples are collected on an hourly basis and mixed to make the monthly composite sample.

River sampling verifies that Callaway Plant discharges meet stringent regulatory requirements.

samples are obtained.

CAR 200102965 documents the details of the operational problems and corrective actions taken.

Operational problems included timer and pump failure, clogged suction pipe, electric power outages and low river water levels. Corrective actions taken were 1) installation of remote indication equipment which allows for closer monitoring of compositor operation 2) the pump used to transport water from the river to the compositor was upgraded 3) a review was conducted on sample pump preventative maintenance and modifications made to improve performance 4) an additional extension was added to the suction piping to prevent failure due to low river water 5) the priority to perform work on the sampler was increased.

The control water sampler (SO 1) was operational 93%

of the time during 2001. This sampler is checked weekly. Immediate action is taken to place the sampler back in service when a problem is identified. If the sampler cannot be returned to service, daily grab samples are obtained. Operational problems included a breaker trip, repairs at the Intake Structure that down powered the sampler and a burnt out pump. The sampler was out of service for one day on 3/10/01 before the failure was identified. The sampler was returned to service on 3/11i

01. This event is documented on CAR 200101012.

Tritium was the only radionuclide detected in surface water samples collected during 2001. Four of twelve samples collected at indicator location S02 contained measurable levels of tritium with a mean concentration of 317 pCi/l. This is < 1% of the reporting limit for tritium in surface water. CARS 200100164, 200101268, 200102968 and 200103898 were initiated to trend the positive results.

The quantity of tritium measured at the indicator station is well within regulatory requirements. These results are inside the range of previous operational levels. There was no significant radiological impact on the health and safety of the public or the environment.

The gamma analysis results for surface water samples were consistent with previously accumulated data and no plant operational effects were identified.

Ground Water Analysis Tritium: A 60-70 ml aliquot of water is purified by distillation. A portion of the distillate is transferred to a counting vial and scintillation fluid added. The contents of the vial are thoroughly mixed and counted in a liquid scintillation counter.

Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Ground water samples are collected quarterly from two sampling wells (F05 and F 15) and one drinking water well (DO 1). The well samples are collected using an 13

Radiological Monitoring Program Continued electric pump that is located in the well. The drinking water sample is collected from a faucet after allowing the line to flush for two minutes. Samples are shipped to Environmental, Inc., Midwest Laboratory for analyses.

Results The analysis results for all ground water samples were consistent with previously accumulated data and no plant operational effects were identified.

Bottom Sediment Analysis Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Bottom sediment samples are collected semiannually from one indicator location (C) and one control location (A). The samples are taken from water at least 2 meters deep to prevent influence of bank erosion. A Ponar dredge is used to obtain the samples, consisting of the uppermost layer of sediment. Each sample is placed, without preservative, in a plastic bag, sealed and shipped to Environmental, Inc., Midwest Laboratory for analyses.

Results The analysis results for bottom sediment samples were consistent with previously accumulated data including pre-operation and no plant operational effects were identified.

Shoreline Sediment Analysis Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and Shoreline sediment samples are collected two feet from the edge of the water in the same location as the bottom sediment samples. Sediment samples indicate there has been no impact on the environment from the Callaway Plant liquid discharge.

specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Shoreline sediment samples are collected semiannually in the same area as bottom sediment. The samples are collected within two feet of the edge of the water and consist of 2 six-inch diameter by two-inch deep sediment plugs. Each sample is placed in a plastic bag, sealed and shipped to Environmental, Inc., Midwest Laboratory for analyses.

Results The analysis results for shoreline sediment samples 14

Radiological Monitoring Program Continued were consistent with previously accumulated data including pre-operation and no plant operational effects were identified.

Wetlands Soil Analysis Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Wetlands soil samples are collected annually from 3 indicator locations (W2, W3, and W4) and one control location (Wi). Two 6-inch square soil plugs consisting of the uppermost two-inch layer of soil are taken at each location. The samples are placed in plastic bags, sealed and shipped to Environmental, Inc., Midwest Labora tory for analyses.

Results Cs-137 was detected in the Wetlands soil samples.

Station W2 indicated 165 pCi/kg dry, Station W3 indicated 101 pCi/kg dry and Station W4 indicated 91 pCi/kg dry.

The analysis results for Wetlands soil samples were consistent with previously accumulated data and no plant operational effects were identified. The Cs-137 activity is due to worldwide fallout from atmospheric nuclear testing.

2.4.6 Airborne Pathway Airborne Analysis Gross Beta: The filters are analyzed approximately five days after collection to allow for decay of natural short-lived radionuclides. The glass fiber type filter is placed into a stainless steel planchet and counted for gross beta radioactivity using a proportional counter.

Iodine: Each Charcoal cartridge is placed on the germanium detector and counted. A peak of 0.36 MeV is used to calculate the concentration at counting time.

The equilibrium concentration at the end of collection is then calculated. Decay correction for the time interval between sample collection and counting is then made.

Gamma Spectrometry: Filters are composited according to location and counted using a germanium detector coupled to a computer based multichannel analyzer. The resulting spectrum is analyzed by computer and specific nuclides, if present, identified and quantified.

Sampling and Frequency Airborne particulate samples are collected on a 47mm diameter glass fiber filter type A/E (99 percent removal efficiency at 1 micron particulate) at a volumetric rate of one and one-half cubic feet per minute at five locations.

Each airborne particulate air sampler is equipped with a charcoal cartridge filter in-line after the particulate filter holder.

The filters are collected weekly and shipped to Environmental, Inc., Midwest Laboratory for analyses.

All five sample locations are considered indicator locations (Al, A7, A8, A9, and B3). One indicator station (A9) is located at the community with the highest D/Q.

Results Air stations A-8, B-3 and A-7 were operational 100%

of the time during 2001.

Station A-I was operational 98.6% of the year. The sampler had a timer failure during the week of 9-12 (CAR 200105776). The timer was replaced. A high flowrate was discovered for the sample collected during 15

Radiological Monitoring Program Continued Airborne samples are continuously collected. Particulates are gathered on a glass fiber filter. A charcoalfilter is in line after the particulate filter to collect iodines. Air samples indicate the Callaway Plant has had no impact on the surrounding environment.

the week of 9/6. This caused additional sample to be collected for the time period, which made the analysis conservative (CAR 200105612).

Station A-9 was operational 98% of the year. The particulate filter for Station A-9 collected during the week of 9-20 was lost in transit to the vendor laboratory.

The cause for the lost sample could not be identified.

Plant and vendor laboratory personnel were coached to increase attention to detail when handling samples (CAR 200105974). This Air Station lost four hours of operational time during the week of 8/23 when the power pole was replaced.

Air Station A-7 had a dogged flow meter which caused a low flow reading for the week of 9-20 The clog was caused by dirt that entered through a loose fitting.

The fitting was replaced (CAR 200107910).

Gross beta activity ranged from 0.006 to 0.054 pCi/

m3 in all samples. The average gross beta activity at all locations was 0.023 pCi/m 3. During 2001 there were 15 weekly samples with gross beta activities greater then the baseline action level of 0.037 pCi/m3. Gamma spectral analysis was performed on these filters and no gamma emitting isotopes of plant origin was detected.

The analysis results for airborne samples are consistent with previously accumulated data and no plant operational effects were identified.

2.4.7 Ingestion Pathway Milk Analysis Iodine-131: Two liters of milk containing standardized Iodine carrier is stirred with anion exchange resin for one hour. The resin is washed with NaCl and the iodine is eluted with sodium hypochlorite. Iodine in the iodate form is reduced to I2 and the elemental iodine extracted into CCI4, back-extracted into water, then precipitated as palladium iodide. The precipitate is counted for 1-131 using a proportional counter.

Gamma Spectrometry: An aliquot of milk is placed in a standard counting container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency When available, two-gallon milk samples are collected semimonthly during the pasture season (April through September) and monthly during the winter from one cow milk location near the Plant M6 and one cow milk location away from the Plant M8. Milk samples are shipped in ice to Environmental, Inc.,

Midwest Laboratory for analyses within eight days after collection.

16

Radiological Monitoring Program Continued effects were identified.

Milk samples were unavailable due to animals not producing milk during the following periods:

Location M8:

Samples were unavailable in August, September and October due to the cow in calf.

The analysis results for milk samples were consistent with previously accumulated data and no plant operational effects were identified.

Fish Analysis Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency The five most abundant recreational or commercial fish species are collected semiannually from one indicator location (C) and one control location (A).

Fish samples are shipped to Environmental, Inc.,

Midwest Laboratory for analyses.

Results The analysis results for fish samples were consistent with previously accumulated data and no plant operational

,re,'nhjortp,! by Amer Vegetation Analysis Iodine-131: A suitable aliquot of wet (as received) sample is placed into a standard calibrated container and counted using a germanium detector coupled to a computer based, multichannel analyzer. A peal of 0.36 MeV is used to calculate the concentration at counting time. The equilibrium concentration at the end of collection is calculated by decay correcting for the time interval between sample collection and counting.

Gamma Spectrometry: A suitable aliquot of wet (as received) sample is placed into a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Monthly, during the growing season, green leafy vegetation is collected from three indicator locations V9, V10, and V11 and from one control location V12.

Vegetation samples consist of mustard greens, turnip greens, cabbage, lettuce, and spinach. Other vegetation is collected if primary varieties are not available. Samples are shipped to Environmental, Inc., Midwest Laboratory for analyses.

Results Green leafy vegetation was unavailable due to lack Jen UR bioloists. Fish samfiles of plant growth during the indicate there has been no impact on the environment due to operation of the Callaway Plant.

17 Results

Radiological Monitoring Program Continued following periods:

Location V9:

January through May, and August Location V1O:

No samples were collected during the year due to weather and flooding Location V11:

January through May, and December Location V12:

January through April, August, November and December The analysis results for vegetation samples were consistent with previously accumulated data and no plant operational effects were identified.

Direct Radiation Analysis The Union Electric program uses the Panasonic Model UD-814 TLD and Model UD-71 OA automatic dosimeter reader. Each dosimeter consists of three elements of CaSO 4:Tm.

Pictured is one of The dosimeters are sealed in a the forty three dosim moisture resistant plastic eter locations used to bag and placed inside a measure direct radia polypropylene mesh cylindrical tion. Direct radiation holder in the environment, data indicates there After exposure in the has been no impact environment the dosimeters are from the operation of read and the result is adjusted to the Callaway Plant.

a standard quarter of 90 days.

Sampling and Frequency Thermoluminescent Dosimetry (TLD) is used to determine direct radiation levels in and around the Callaway site. Forty-three dosimeters are placed in 16 sectors around the plant as specified in the ODCM. The dosimeters are read once per quarter. Three locations are designated as controls (IDM-26, IDM-27 and IDM-60).

Results Direct Radiation data was unavailable due to vandalism at location IDM-6 and IDM-21 during the first quarter and IDM-14 and 3 la during the second quarter. IDM-5 had to be replaced after the first 13 days of the second quarter due to vandalism.

The analysis results for TLD samples were consistent with previously accumulated data and no plant operational effects were identified.

Soil Analysis Gamma Spectrometry: A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a germanium detector coupled to a computer based, multichannel analyzer.

Sampling and Frequency Soil samples are collected annually from four indicator locations (F2, PR3, F6, and PR7) and one control location (V3). To ensure only the most recent deposition is sampled, the uppermost two-inch layer of soil is taken at each location. Samples consist of 2 six-inch square soil plugs. The litter at the surface and the root mat is considered part of the sample. The samples are placed in plastic bags, sealed and shipped to Environmental, Inc.,

Midwest Laboratory for analyses.

Results Cs-137 was detected in the soil samples. Control station V3 indicated 220 pCi/kg dry while the highest indicator station indicated 913 pCi/l dry.

The analysis results for soil samples were consistent with previously accumulated data including pre operation and no plant operational effects were identified. The Cs-137 activity is due to worldwide fallout from atmospheric nuclear testing.

18

Radiological Monitoring Program Continued 2.5 Land Use Census The Land Use Census is performed annually during the growing season within a five-mile radius of the Callaway Plant. The location of the nearest resident, milking animal and garden greater then 50 square meters is identified in each of the sixteen meteorological sectors.

The AmerenUE Real Estate Department conducted the 2001 Land Use Census during November.

Information was collected by contacting residents by phone and conducting field surveys.

Results The results of the 2001 Land Use Census are presented in Table IV. The table includes radial direction and distance from the Callaway Plant for each location. These parameters were determined using a combination of map position, aerial photography and Global Positioning System (GPS) receiver.

Nearest Resident The distance of the nearest resident with the highest D/Qwas unchanged for 2001. This resident lives 1.8 miles from the plant in the NNW sector.

Milking Animals Milking animals were identified in the SW sector.

Milk is not collected for human consumption at this location. The owners did not want to participate in a sampling program. The owners of milking animals in the SSE sector indicated they would participate in the sampling program. This location will be pursued for the 2002 sample program.

Vegetable Gardens A volunteer in the SE sector had a higher average ground level D/Q then the current participants. This location will be pursued for the 2002 sample program.

Changes were identified for the nearest garden in the following sectors: E, ESE, SE, S, SSW, SW, WSW, NE, andW.

View of land near the Callaway Plant during late Winter. In the background is the Missouri River.

19

Table iv 2001 Land Use Census Results Closest Receptor in Miles1 Sector Residence Garden Milk N

2.2 NI NI NNE 2.2 2.4 NI NE 2.3 2.3 NI ENE 1.7 2.9 NI E

3.5 3.5 NI ESE 2.1 4.7 NI SE 2.2 2.3 NI SSE 2.5 2.5 2.5 S

2.7 2.9 NI SSW 2.4 2.8 NI SW 2.6 2.7 2.7 WSW 1.2 3.2 NI W

1.6 2.3 4.0 WNW 1.9 1.9 NI NW 2.1 3.2 2.6 NNW 1.8 3.2 NI NI=None Identified 2.6 Cross-Check Results The crosscheck results performed by the vendor laboratory during 2001 are presented in Table V. The results indicate satisfactory laboratory performance.

20

2001 Environmental Measurement Labratory Quality Assessment Program Results Date Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Mar-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 Sep-01 1 Results are reported as follows: Water Bq/L, Air Filters Bq/Filter, Soil andVegetation Bq/Kg.

2 Control Limits are the ratio of Reported Value / Reference Value established using historic data.

21 Table V Type Air Filter Air Filter Air Filter Air Filter Air Filter Water Water Water Water Water Soil Soil Vegetation Vegetation Vegetation Air Filter Air Filter Air Filter Air Filter Air Filter Water Water Water Water Water Soil Soil Vegetation Vegetation Vegetation Reported Reference Nudide Value1 Value Beta 2.30 +/- 0.02 2.58 Cs-134 2.71 +/- 0.15 2.83 Co-60 20.11 0.16 19.44 Cs-137 9.86 + 0.23 8.76 Mn-54 7.25 + 0.22 6.52 Cs-137 70.10 4.00 73.00 Alpha 1724.60 +/- 141.70 1900.00 Beta 1246.40 31.10 1297.00 H-3 76.50 +/- 5.50 79.3 Co-60 97.00 +/- 0.80 98.20 K-40 583.80 +/- 52.60 468.00 Cs-137 1772.60 +/- 79.8 1740.00 Cs-137 795.50 +/- 76.40 842.00 K-40 592.60 +/- 42.50 603.00 CO-60 28.50 +/- 2.10 30.40 Co-60 16.90 +/- 0.30 17.50 Cs-137 18.30 +/- 0.30 17.10 Mn-54 85.40 +/- 1.30 81.15 Beta 13.80 +/- 0.10 12.77 Cs-134 11.80 +/- 0.20 12.95 Co-60 206.70 +/- 4.70 209.00 Cs-137 46.60 0.80 45.133 Alpha 1220.00 32.00 1150.00 Beta 8461.00 +/-206.00 7970.00 H-3 254.10 +/- 3.60 207.00 Cs-137 659.20 +/- 10.80 612.33 K-40 737.70 +/- 16.60 623.33 Co-60 40.20 +/- 0.90 35.30 Cs-137 1184.00 +/-2.80 1030.00 K-40 1023.00 +/-44.10 898.67 Control Limits2 0.76-1.52 0.74-1.21 0.79-1.30 0.78-1.35 0.80- 1.36 0.80- 1.20 0.58-1.26 0.56-1.50 0.74 - 2.29 0.80- 1.20 0.80- 1.37 0.80- 1.29 0.80- 1.37 0.78-1.43 0.75-1.51 0.79-1.30 0.78-1.35 0.80- 1.36 0.76-1.52 0.74-1.21 0.80- 1.20 0.80- 1.24 0.58-1.26 0.56-1.50 0.74-2.29 0.80- 1.29 0.80- 1.37 0.75-1.51 0.80- 1.37 0.78-1.43 Result PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS

2001 MAPEP and ERA Results MLAPEP Reported Date Jan-01 Jan-01 Jan-01 Jan-01 Jan-01 Jan-01 Jan-01 Reference Type Nudlide Value1 Value

.. I......

... I.....

Soil Co-57 100.20 + 3.50 103.00 Soil Co-60 1285.10 5.30 1270.00 Soil Cs-134 81.10 +/- 1.80 91.10 Soil K-40 732.60 +/- 21.20 652.00 Soil Cs-137 1210.60 +/-6.60 1240.00 Soil Mn-54 212.60 +/- 6.70 203.00 Soil Zn-65 428.50 +/- 10.90 382.00 Control Limits2 72.10- 133.90 889.00 - 1651.00 63.77 - 118.43 456.40 - 847.60 868.00- 1612.00 142.10- 263.90 267.40 - 496.60 ERA Date Type Oct-01 Water Oct-01 Water Oct-01 Water Oct-01 Water Oct-01 Water Oct-01 Water Nov-01 Water Nov-01 Water Nov-01 Water Nov-01 Water Nov-01 Water Nuclide Co-60 Cs-134 Cs-137 Gr. Beta Gr. Alpha Gr. Beta Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Reported Value' 82.4 +/- 0.9 52.2 +/- 1.3 39.4 +/- 0.6 166.0 +/-7.1 63.5 +/-2.5 26.0 +/- 1.2 66.7+/- 1.2 59.3 +/- 0.6 86.7+/- 1.5 45.0 +/- 1.0 80.7 +/- 0.6 Reference Value 78.40 54.1 37.9 192.0 64.0 21.5 69.3 59.7 93.9 42.0 77.3 Control Limits 69.7 - 87.1 45.4 - 62.8 26.3-43.7 142.0 - 242.0 36.5-91.5 12.8 - 30.2 57.5-81.1 51.0-68.4 85.2-103.0 33.3 - 50.7 63.9 - 90.7 1 Results are reported as: Bq/Kg for MAPEP and pCil1 for ERA.

2Control Limits are defined by MAPEP and ERA.

22 Table V Result PASS PASS PASS PASS PASS PASS PASS Result PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS r

Radiological Monitoring Program Continued 2.7 Data Reporting Conventions Lower Limit of Detection The lower limit of detection (LLD) used in this report is per NRC Regulatory Guide 4.1, Rev. 1, "Program for Monitoring Radioactivity in the Environs of Nuclear Power Plants", and the NRC Branch Technical Position, November 1979, "An Acceptable Radiological Environmental Monitoring Program". The LLD is defined as the smallest concentration of radioactivity material in a sample that will yield a net count (above system background) that will be detected with 95% probability with only 5% probability of falsely concluding that a blank observation represents a "real" signal.

The maximum LLDs for radiological environmental sample analysis is presented in Table III.

Data Reporting Positive sample results are reported with a 2 sigma counting uncertainty (corresponding to the 95%

confidence level). In cases where the activity is found to be below the sample analysis minimum detection activity it is reported as Not Detected (ND).

2.8 Radiological Environmental Monitoring Program Annual Summary The REMP Summary is presented in Table VI With the exception of a small indication of tritium in river water, there was no measurable impact on the environment due to plant operation.

23

Table VI REMP Summary Type and All Location With Highest Medium or Pathway Total Lower Indicator Annual Mean Control Number of Sampled Number Limit of Locations Name Mean (f)2 Location Non-routine (Unit of of Analysis Detection Mean (f)2 Distance and Range Mean (f)2 Reported Measurement)

Performed (LLD)

Range Direction Range Measurements Waterborne Pathway Surface Water H-3 (24)

(pCi/1)

Shoreline Sediment Gamma (24)

Gamma (4)

(pCi/kg)

Airborne Pathway Airborne Particulate (pCi/m3)

Gross (258)

Beta Gamma (20) 1-131 (259) 0.023 (258/258)

(0.006 - 0.054) 0.070 (0/20)

(0/259)

B-3 1.8 mi NNW NA NA 0.024 (52/52)

(.008 - 0.050)

NA NA 24 105 317 (4/12)

(199 - 548)

-(0/12)

-- (0/2)

(0/12)

S02 4.9 mi SE NA NA 0

317 (4/12)

(199 - 548)

NA NA

-- (0/12)

-- (0/2) 0 0

NA 0

NA NA 0

0

REMP Summary Type and All Location With Highest Medium or Pathway Total Lower Indicator Annual Mean Control Number of Sampled Number Limit of Locations Name Mean (f)2 Location Non-routine (Unit of of Analysis Detection Mean (f)2 Distance and Range Mean (f)2 Reported Measurement)

Performed (LLD)

Range Direction Range Measurements Ingestion Pathway Milk Fish (pCi/kg - wet)

Vegetation (pCi/kg - wet)

Gamma (32) 1-131 (32)

Gamma (20)

Gamma (30) 1-131 (30)

Direct Radiation QuarterlyTLDs (mRem/Standard Quarter)

Gamma (168)

Dose 10 16.6 (156/156)

(10/20) 31a 7.8 mi SW 18.7 (3/3)

(18-19) 15.3 (12/12)

(10- 19)

The LLDs quoted is the lowest actual detection limit obtained in the various media during the reporting period. The required LLDs for radiological environmental sample analysis is found in Table III. Where all nuclides were LLD for specific media, no LLD was listed.

2 Mean and range are based upon detectable measurements only.

Fraction of detectable measurements is indicated in parentheses.

25 Table VI (0/18) 0.2 7.2 (0/18)

(0/10)

-- (0/30)

-- (0/30)

(0/14)

(0/14)

(0/10)

NA NA NA NA NA 0

0 0

NA NA NA NA NA

-- (0/8)

-- (0/8) 0 0

0

Radiological Monitoring Program Continued 2.9 Individual Sampling Results The REMP Individual sample results are presented in Tables VII through XVI.

The following acronyms are used in these tables:

ND = Not Detected (Result below analysis detection limit)

NA = Not Available (Circumstances discussed in body of report)

The area surrounding the Callaway Plant includes the Reform Conservation Area. The 7,044 acres that comprise this area is owned by Ameren UE and managed by the Missouri Department of Conservation.

26

Airborne Beta & Iodine (All results are the effect of natural background)

Gross Beta data is listed. All Iodine-131 results are <0.07. All results are in pCi/ml.

A-1 B-3 A-7 A-8 A-9 A-1 01/04/01 0.047 0.050 0.045 0.054 0.044 07/05/01 0.022 01/11/01 0.023 0.024 0.022 0.026 0.021 07/12/01 0.025 01/18/01 0.028 0.032 0.028 0.037 0.025 07/19/01 0.024 01/25/01 0.038 0.042 0.036 0.049 0.037 07/26/01 0.027 02/01/01 0.025 0.028 0.025 0.032 0.024 08/02/01 0.025 02/08/01 0.023 0.025 0.023 0.027 0.023 08/09/01 0.030 02/15/01 0.019 0.021 0.018 0.023 0.019 08/16/01 0.025 02/22/01 0.031 0.036 0.034 0.039 0.032 08/23/01 0.021 08/30/01 0.030 03/01/01 0.022 0.027 0.026 0.033 0.022 03/08/01 0.028 0.027 0.027 0.032 0.024 09/06/01 0.028 03/15/01 0.020 0.019 0.020 0.017 0.018 09/12/01 NA 03/22/01 0.014 0.018 0.014 0.014 0.013 09/20/01 0.026 03/29/01 0.018 0.018 0.017 0.016 0.020 09/27/01 0.019 04/05/01 0.018 0.019 0.015 0.017 0.018 10/04/01 0.020 04/12/01 0.019 0.020 0.019 0.018 0.018 10/11/01 0.022 04/19/01 0.016 0.016 0.013 0.015 0.014 10/18/01 0.014 04/26/01 0.021 0.020 0.014 0.017 0.020 10/25/01 0.025 05/03/01 0.024 0.025 0.022 0.022 0.022 11/01/01 0.024 05/10/01 0.019 0.022 0.014 0.018 0.020 11/08/00 0.020 05/17/01 0.022 0.018 0.017 0.020 0.020 11/15/01 0.036 05/24/01 0.014 0.011 0.010 0.009 0.012 11/21/01 0.033 11/29/01 0.018 05/31/01 0.013 0.013 0.012 0.011 0.013 06/07/01 0.007 0.008 0.006 0.006 0.006 12/06/01 0.029 06/14/01 0.023 0.024 0.018 0.018 0.022 12/13/01 0.030 06/21/01 0.023 0.021 0.015 0.018 0.023 12/20/01 0.025 06/28/01 0.023 0.019 0.019 0.018 0.021 12/27/01 0.023 B-3 0.020 0.026 0.022 0.027 0.024 0.029 0.023 0.017 0.025 0.024 0.018 0.011 0.022 0.021 0.022 0.014 0.025 0.025 0.022 0.040 0.041 0.024 0.032 0.034 0.031 0.033 A-7 A-8 A-9 0.018 0.020 0.022 0.021 0.018 0.024 0.018 0.019 0.020 0.022 0.025 0.025 0.015 0.020 0.023 0.024 0.024 0.025 0.022 0.023 0.023 0.012 0.016 0.020 0.022 0.026 0.030 0.021 0.023 0.026 0.015 0.013 0.018 0.022 0.023 NA 0.020 0.018 0.021 0.022 0.022 0.025 0.020 0.024 0.026 0.014 0.016 0.016 0.025 0.023 0.025 0.020 0.021 0.026 0.021 0.021 0.022 0.031 0.032 0.037 0.030 0.034 0.038 0.020 0.022 0.023 0.028 0.026 0.027 0.026 0.026 0.029 0.012 0.023 0.023 0.029 0.026 0.026 27 Table VII

Airborne Gamma Composites (All results are the effect of natural background)

Gamma Isotopic' (pCi/m3)

A-1 QTR 1 QTR 2 QTR 3 QTR 4 Be-7 0.065 0.081 0.078 0.053 A-7 QTR 1 QTR 2 QTR 3 QTR 4 Be-7 0.067 0.067 0.052 0.062 A-8 QTR 1 QTR 2 QTR 3 QTR 4 Be-7 0.064 0.081 0.065 0.065 A-9 QTR 1 QTR 2 QTR 3 QTR 4 Be-7 0.062 0.084 0.071 0.066 B-3 QTR 1 QTR 2 QTR 3 QTR 4 Be-7 0.083 0.085 0.066 0.061

'Co-58, Co-60, Zr-95, Nb-95, Cs-134, Cs-137, Ba-140, La-140, Ce-144 Not Detectable 28 Table VIII

Table IX (All results are the effect of natural background)

Gamma Isotopic' (pCi/kg)

F2 F6 PR3 PR7 V3 12/19/01 12/19/01 12/19/01 12/19/01 12/19/01 Gross Alpha Gross Beta K-40 Cs-137 12,382 25,638 12,452 632 13,921 31,144 10,919 913 Wi W2 W3 W4 12/19/01 12/19/01 12/19/01 12/19/01 Gross Alpha Gross Beta K-40 Cs-137 8,978 19,164 12,880 ND 16,376 28,443 15,886 165

'Mn-54, Fe-59, Co-58, Co-60, Zr-95, Nb-95, Cs-134, Ba-140, La-140, Not Detectable 29 Soil 14,982 27,388 11,057 527 14,558 21,223 11,318 354 14,471 29,782 18,210 220 13,048 24,565 13,032 101 11,248 21,617 13,215 91

Vegetation (All results are the effect of natural background)

Table X Gamma Isotopic1 (pCi/kg wet)

V9

°.......

° 6/11/01 6/11/01 6/11/01 7/23/01 9/26/01 10/8/01 Lettuce Mustard Greens Cabbage Lettuce Mustard Greens Mustard Greens Gross Alpha ND ND 77 ND 60 66 Gross Beta 4,702 ND 4,920 10,661 2,754 4,100 K-40 3,003 4,904 4,987 7,536 3,209 4,477 11/12/01 11/12/01 12/10/01 12/10/01 Turnip Greens Mustard Greens Cabbage Mustard Greens Gross Alpha Gross Beta K-40 124 5,675 5,360 ND 4,252 4,720 ND 4,405 4,124 68 4,496 4,661

'Mn-54, Co-58, Co-60, 1-131, Cs-134, Cs-137, Not Detectable 30

Vegetation Table X (All results are the effect of natural background)

Gamma Isotopic' (pCi/kg wet) vi1 6/11/01 6/11/01 6/26/01 6/26/01 7/11/01 7/11/01 Chard Cabbage Broccoli Turnip Greens Broccoli Turnip Greens Gross Alpha ND ND 63 ND ND 329 Gross Beta 6,502 ND 4,297 5,222 5,261 5,728 K-40 7,085 3,073 3,691 4,097 4,597 4,986 8/14/01 8/14/01 9/10/01 9/25/01 10/8/01 11/13/01 Cauliflower Cabbage Broccoli Greens Kale Cabbage Gross Alpha Gross Beta K-40 68 4,186 4,274 38 2,652 2,962 ND 5,730 5,038 ND 3,844 4,102 54 4,104 3,596 74 3,930 2,786 V12 5/22/01 6/11/01 Mustard Greens Cabbage 6/26/01 Lettuce 7/10/01 7/23/01 Mustard Greens Mustard Greens Gross Alpha 129 ND ND ND ND ND Gross Beta 4,403 ND ND 5,163 6,886 3,074 K-40 5,417 3,853 3,665 5,305 6,783 3,052 9/25/01 10/9/01 Turnip Greens Mustard Greens Gross Alpha Gross Beta K-40 85 3,765 4,304 90 4,438 4,583 1 Mn-54, Co-58, Co-60, 1-131, Cs-134, Cs-137, Not Detectable 31 517101 Lettuce

Surface Water (All results except tritium are the effect of natural background)

Table XI Gamma Isotopic' (pCi/L)

Sol 1/10/01 2/13/01 3/13/01 4/10/01 5/8/01 6/12/01 Gross Alpha 1.8 2.3 2.2 3.9 3.2 3.7 Gross Beta 6.8 7.3 6.4 8.6 9.8 10.9 H-3 ND ND ND ND ND ND 7/10/01 8/14/01 9/11/01 10/12/01 11/15/01 12/11/01 Gross Alpha 2.9 3.2 3.4 3.0 3.1 3.8 Gross Beta 8.5 8.7 8.3 9.4 8.2 7.5 H-3 ND ND ND ND ND ND S02 1/10/01 2/13/01 3/13/01 4/10/01 5/8/01 6/12/01 Gross Alpha 2.4 4.4 2.4 2.4 3.9 4.2 Gross Beta 7.5 6.5 5.7 8.1 7.9 10.6 H-3 548 281 240 199 ND ND 7/10/01 8/14/01 9/11/01 10/12/01 11/15/01 12/11/01 Gross Alpha Gross Beta H-3 1.7 7.7 ND 3.5 8.1 ND 3.4 8.4 ND 3.4 8.6 ND 4.3 9.6 ND 2.8 7.2 ND

'Mn-54, Fe-59, Co-58, Co-60, Zr-95, Nb-95, Cs-134, Cs-137, Ba-140, La-140,Not Detectable 32

Ground Water Gamma Isotopic' (pCi/L)

D01 QTR 1 QTR 2 QTR 3 QTR 4 All ND ND ND ND F05 QTR 1 QTR 2 QTR 3 QTR 4 All ND ND ND ND FO 15 QTR 1 QTR 2 QTR 3 QTR 4 All ND ND ND ND H-3, Mn-54, Fe-59, Co-58, Co-60, Zr-95, Nb-95, Cs-134, Cs-137, Ba-140, La-140, Not Detectable 33 Table XII

Sediments Table XIII (All results are the effect of natural background)

Gamma Isotopic' (pCi/kg dry)

Bottom Sediments A

4/25/01 10/23/01 11,712 ND 12,176 ND C

4/25/01 10/23/01 K-40 Cs-137 13,156 ND 13,278 ND Shoreline Sediments A

4/25/01 10/23/01 13,362 ND 13,376 ND K-40 Cs-137 C

4/25/01 10/23/01 15,794 ND 13,388 ND Mn-54, Fe-59, Co-58, Co-60, Zr-95, Nb-95, Cs-134, Ba-140, La-140, Not Detectable 34 K-40 Cs-137 K-40 Cs-137

Fish Table XIV (All results are the effect of natural background)

Gamma Isotopic' (pCi/kg wet)

A 4/25/01 4/25/01 4/25/01 4/25/01 4/25/01 Bigmouth Carp River Freshwater Grass Buffalo Carpsucker Drum Carp K-40 3,745 2,878 2,662 3,115 2,833 10/23/01 10/23/01 10/23/01 10/23/01 10/23/01 Carp Channel Freshwater Bigmouth River Catfish Drum Buffalo Carpsucker K-40 3,323 3,061 2,696 2,513 3,271 C

4/25/01 4/25/01 4/25/01 4/25/01 4/25/01 Bigmouth Freshwater Carp River Grass Buffalo Drum Carpsucker Carp K-40 2,553 2,673 2,799 2,706 3,365 10/23/01 10/23/01 10/23/01 10/23/01 10/23/01 Freshwater Carp Smallmouth Channel River Drum Buffalo Catfish Carpsucker K-40 2,767 2,732 2,729 3,180 2,642 Mn-54, Fe-59, Co-58, Co-60, Cs-i 34, Cs-137, Not Detectable 35

Milk Table XV (All results are the effect of natural background)

Gamma Isotopic and Iodine' (pCi/L)

M6 1/8/01 2/12/01 3113/01 4/10/01 4/24/01 5/8/01 K-40 1,335 1,318 1,250 1,196 1,138 1,275 5/22101 6/12/01 6/26/01 7/10/01 7/24/01 8/14/01 K-40 1,353 1,292 1,196 1,292 1,309 1,218 8/28/01 9/11/01 9/25/01 10/9/01 11/13/01 12/11/01 K-40 1,228 1,214 1,204 1,257 1,246 1,168 M8 1/8/01 2/12/01 3/13/01 4/9/01 4/24/01 5/8/01 K-40 1,364 1,239 1,369 1,033 1,391 1,045 5/21/01 6/12/01 6/25/01 7/09/01 7/24/01 8/13/01 K-40 1,164 912 1,157 877 976 810 8/28/01 9/11/01 9/25/01 10/9/01 11/12/01 12/10/01 K-40 NA NA NA NA 1,216 1,398

' 1-131, Zn-65, Cs-134, Cs-137, Ba-140, La-140,Not Detectable 36

Table XVI Gamma Dose (mrem)

Direct Radiation (All results are the effect of natural background)

QTR 1 QTR 2 QTR 3 QTR 4 la 3

5 6

7 9

10 1la 14 17 18a 20 21 22a 23 26 27 30a 31a 32 32a 33 15 18 14 NA 18 14 18 17 16 16 16 17 NA 16 16 11 17 17 19 18 17 18 15 16 15 14 15 13 16 16 NA 15 15 15 16 15 15 10 15 13 NA 16 16 15 18 20 16 19 19 16 19 19 18 18 17 19 19 18 19 13 19 18 19 19 20 18 18 18 16 16 17 15 19 19 17 17 17 17 18 16 17 13 17 16 18 17 17 17 QTR 1 QTR 2 QTR 3 QTR 4 34 35 36 37 38 39 39a 40 41 42 43 44 45 46 47 48 49 50 51a 52 60 15 13 15 17 12 15 17 17 17 12 16 17 15 16 17 16 17 17 17 16 17 16 15 12 15 10 15 17 17 15 12 16 15 15 15 15 17 15 15 18 17 16 17 16 16 18 13 17 19 19 19 14 18 19 16 18 18 19 18 18 18 18 18 37 18 17 16 17 12 17 19 19 16 15 18 18 16 17 16 19 17 20 19 19 18

Non-Radiological Monitoring Program 3.1 Introduction Union Electric Company, d.b.a. AmerenUE, in accordance with federal regulations and a desire to maintain the quality of the local environment around Callaway Plant has implemented an Environmental Protection Plan, (EPP) contained in Appendix B of the Callaway Plant Operating License.

The objective of the EPP is to provide for protection of non-radiological environmental values during operation of the Callaway Plant.

This report describes the conduct of the EPP for the Callaway Plant during 2001.

3.2 Unusual or Important Events No unusual or important events reportable under the EPP Section 4.1 were identified during 2001.

3.3 EPP Noncompliances During 2001 there were no noncompliances with the EPP 3.4 Nonroutine Reports There were no nonroutine reports submitted in accordance with the EPP, Section 5.4.2 in 2001.

3.5 Plant Design and Operation Environmental Evaluations.

This section lists all changes in the plant design, operation, tests or experiments completed during 2000, which could have involved a potentially significant unreviewed environmental question in accordance with section 3.1 of Appendix B.

During 2001, there was one plant design and operation change that could have involved a potentially significant unreviewed environmental question. The interpretations and conclusions regarding this plant change along with a description of the change are presented below.

Callaway Temporary Modification TM 01-0009 Revision 0 Description of Change:

Temporary modification TM 01-0009 installed a NUKEM Ultra-Filtration Demin Skid in the liquid radwaste system. This filtration and demineralization treatment system is used to treat liquid radwaste. This system is being evaluated and it may replace the second ary liquid waste evaporator.

Evaluation of Change:

The decontamination factors for processing liquid radwaste with the temporary NUKEM equipment are not currently known. However, all effluents from this treatment system will be routed to the discharge monitor tanks where each tank will be sampled and analyzed to ensure all limits are met prior to discharge. This includes NPDES limits as well as radiological limits including 10 CFR 50 requirements. During the trial period, the NUKEM equipment will be evaluated to determine decontamination factors for radionuclides as well as for conventional pollutants. Should additional treatment be necessary, the waste stream can be routed to current processing equipment or back to the NUKEM equip ment for further treatment. This temporary modifica tion will not significantly affect the concentrations, frequencies or types of effluent being discharged from the plant, and does not affect the current plant power level. Therefore, this change does not constitute an unreviewed environmental question per Section 3.1 of appendix B to the Callaway Plant Operating License.

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