ML021230094

2001 Annual Environmental Operating Report

ML021230094
Person / Time
Site:	Callaway
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

Union Electric 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 S"Ameren CALLAWAY PLANT UE 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 L'ý00 ý a subsidiary of Ameren Corporation

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 MET TOWER E

SSWI "WAmewn YE

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 RadiologicalEnvironmentalOperatingReport describes the Union Electric Company, CallawayPlantRadiologicalEnvironmental Monitoring Program (REMP), and the program resultsfor the calendaryear 2001. It is submitted in accordance with section 5.62 of the Callaway Plant Technical Specifications.

Section 2.0 describes the RadiologicalMonitoring Program. Included is the identification of sampling locations, descriptionsof sampling and analysis procedures, analysis results, data interpretationsandprogram modifications.

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

Section 3.0 describes the Non-RadiologicalMonitoringProgram.

Included are any unusual or importantevents, EnvironmentalProtection Plan non-compliance, non-routine reports and plant design and operation environmental evaluations.

During2001 the Callaway Plant operated in compliance with the Off Site Dose Calculation Manual requirements. Comparison of resultsfor 2001 to pre-operationaldata and datafrom previousyears show no significant differences.

Results from the REMP indicate the CallawayPlant has had no significant radiologicalimpact on the health and safety of the public or on the environment.

I

2.0 RadiologicalMonitoringProgram 2.1 Introduction Samples are collected from waterborne, airborne, ingestion and direct radiation pathways. The types of This report presents an analysis of the results of the sample media collected are: milk, surface water, REMP conducted during 2001 for Union Electric groundwater, shoreline sediment, bottom sediment, Company, Callaway Plant. soil, wetlands, fish, vegetation, airborne particulate, The radiological environmental monitoring program airborne radioiodine and direct radiation (TLD).

began in April 1982. Indicator samples are collected from locations, which could be influenced by plant effluents. Control samples The objectives of the REMP are to monitor potential are collected at locations that are not significantly critical pathways of radioeffluent to man and determine affected by plant operation.

the radiological impact on the environment caused by operation of Callaway Plant. Samples are collected by Union Electric personnel or contractors to Union Electric and shipped to Callaway Plant consists of one 1239 MWe Environmental, Inc. Mid West Laboratory for analysis.

pressurized water reactor, which achieved initial The data is reported monthly and summarized in the criticality on October 2, 1984. The plant is located on annual report. TLD's are analyzed by Union Electric a plateau approximately ten miles southeast of the City personnel.

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 2.3 Program Description of the site at its closest point. 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 2.2 Program Design frequency and required analysis.

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.

2

FigureI DistantCollection Locations t

01-1F LEGEND:

0 = TLD H = MILK A = AIR U = SOIL I- WATER 0 = FISH, SEDIMENT I= VEGETATION CQi 3

FigureII Near Site Collection Locations TTOWER E

050 LEGEND:

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

=

-WATER 0 = FISH, SEDIMENT

• = VEGETATION 4

Table I Sampling Locations Location Sampk 18a 3.7 mi. ENE; East side of Hwy D, 0.5 IDM Code Description' Types2 mi. South of 0, Callaway Electric Cooperative Utility Pole No. 38579.

la 10.8 mi. NW, City of Fulton on Hwy Z, IDM 0.65 mi. East of Business 54, West of 20 4.7 mi. NE; City of Readsville, Callaway IDM Campus Apartments Electric Cooperative Utility Pole No.

12830.

3 1.2 mi. NW; 0.1 mi. West of Hwy CC IDM on Gravel Road, 0.8 mi. South Hwy 0, 21 3.8 mi. NNE; County Road 155, 1.9 IDM Callaway Electric Cooperative Utility mi. North of Hwy 0, Callaway Electric Pole No. 18559. Cooperative Utility Pole No. 19100 5 1.3 mi. ENE; Primary Meteorological IDM 22a 1.9 mi. NNE; North side of Hwy 0, IDM Tower. 100 feet East of County Road 150, Callaway Electric Cooperative Utility 6 2.0 mi. W; County Road 428, 1.2 mi. IDM Pole No. 31094.

West of Hwy CC, Callaway Electric Cooperative Utility Pole No. 18609. 23 6.6 mi. NNE; City of Yucatan, Callaway IDM Electric Cooperative Utility Pole No.

7 1.4 mi. S; County Road 459, 2.6 mi. IDM 12670 North of Hwy 94, Callaway Electric Cooperative Utility Pole No. 35097 263 11.7 mi. E; Town of Americus, Callaway IDM Cooperative Utility Pole No. 11159.

9 3.8 mi. S; NW Side of the County Road IDM 459 and Hwy 94 Junction, Callaway 273 9.3 mi. ESE; Town of Bluffton, Callaway IDM Electric Cooperative Utility Pole No. Electric Cooperative Utility Pole No.

06754. 11496.

10 3.9 mi. SSE; Hwy 94, 1.8 mi. East of IDM 30a 4.4 mi. SSW; City of Steedman, N side IDM County Road 459, Callaway Electric of Belgian Dr., 150 feet East of Hwy CC, Cooperative Utility Pole No. 12182. Callaway Electric Cooperative Utility Pole No. 06557.

1 a 4.7 mi. SE; City of Portland, Callaway IDM Electric Cooperative Utility Pole No. 31a 7.8 mi. SW; City of Mokane, Junction IDM 12110. Hwy C and County Road 400, 0.9 mi.

North of Hwy 94, Callaway Electric 14 4.9 mi. ESE; SE Side of Intersection D IDM Cooperative Utility Pole.

and 94, Callaway Electric Cooperative Utility Pole No. 11940. 32 5.4 mi. WSW; Hwy VV, 0.6 mi. West of IDM County Road 447, Callaway Electric 17 3.8 mi. E; County Road 4053, 0.3 mi. IDM Cooperative Utility Pole No. 27031.

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

5

Table I Sampling Locations Continued Location SSample 41 4.9 mi. W; Hwy AD, 2.8 mi. East of IDM qTypes2 Code Description' Hwy C, Callaway Electric Cooperative Utility Pole No. 18239.

32a 5.0 mi. WSW; County Road 447, IDM Callaway Electric Cooperative Utility 42 4.4 mi. SW; County Road 447, 2.6 mi. IDM Pole No. 06354. North of County Road 463, Callaway Electric Cooperative Utility Pole No.

33 7.4 mi. W; City of Hams Prairie, SE of IDM 06326.

Hwy C and AD Junction 43 0.5 mi. SW; County Road 459, 0.7 mi. IDM 34 9.5 mi. WNW; NE Side of Hwy C and IDM South of Hwy CC, Callaway Electric County Road 408 Junction. Cooperative Utility Pole No. 35073.

35 5.8 mi. NNW; City of Toledo, Callaway IDM 44 1.6 mi. WSW; Hwy CC, 1.0 mi. South 1DM Electric Cooperative Utility Pole No. of County Road 459, Callaway Electric 17684. Cooperative Utility Pole No. 18769.

36 4.9 mi. N; County Road 155, 0.8 mi. IDM 45 1.0 mi. WNW; County Road 428, 0.1 IDM South of County Road 132, Callaway mi. West of Hwy CC, Callaway Electric Electric Cooperative Utility Pole No. Cooperative Utility Pole No. 18580.

19137.

46 1.5 mi. NNW; NE Side of Hwy CC and IDM 37 0.5 mi. SSW; County Road 459, 0.9 mi. IDM County Road 466 Intersection, Callaway South of Hwy CC, Callaway Electric Electric Cooperative Utility Pole No.

Cooperative Utility Pole No. 35077. 28242.

38 4.6 mi. NNW; County Road 133, 1.5 IDM 47 1.0 mi. N; County Road 448, 0.9 mi. IDM mi. South of Hwy UU, Callaway Electric South of Hwy 0, Callaway Electric Cooperative Utility Pole No. 34708. Cooperative Utility Pole No. 28151.

IDM 39 5.4 mi. NW; County Road 111, IDM Callaway Electric Cooperative Utility 48 0.4 mi. NE; County Road 448, 1.5 mi. IDM Pole No. 17516. South of Hwy 0, Plant Security Sign Post.

39a 5.0 mi. NW County Road 111, IDM Callaway Electric Cooperative Utility 49 1.6 mi. E; County Road 448, Callaway IDM Pole No. 17526 Electric Cooperative Utility Pole No.

06959, Reform Wildlife Management 40 4.2 mi. WNW; NE Side of County Road IDM Parking Area.

112 and Hwy 0, Callaway Electric Cooperative Utility Pole No. 06326.

6

Table I Sampling Locations Continued Location S;ample M6 2.6 mi. NW, Pierce's Farm (Cow's Milk) MLK Code Description' tyesý MLK 50 0.9 mi. SSE; County Road 459, 3.3 mi. IDM M8 3 18.7 mi. WSW, Kissock's Farm, South of MLK North of Hwy 94, Callaway Electric New Bloomfield, MO (Cow's Milk).

Cooperative Utility Pole No. 35086.

V33 15.0 mi. SW; Beazley Farm, West of SOL 51a 0.3 mi. SE; Owner Control Fence, SE of IDM Tebbetts, MO.

the Water Treatment Plant.

V9 2.0 mi. WNW; Meehan Farm FPL 52 0.4 mi. ESE; Light Pole Near the East IDM Plant Security Fence VIO 3.4 mi. SSW; Brandt Farm FPL 603 13.5 mi. SW; Callaway Electric IDM VI1 3.2 mi. NW; Hickman Farm FPL Cooperative Utility Pole No. 43744 just past Tebbetts City sign. V12 3 18.7 mi. WSW, Kissock's Farm, South of FPL New Bloomfield, MO (Cow's Milk).

Al 1.3 mi. ENE; Primary Meteorological APT, Tower. MO A34' 4.9 mi. SSE; 0.6 River Miles Upstream AQS, A7 9.5 mi. NW; C. Bartley Farm. APT, of Discharge North Bank. AQF MO C4 4.9 mi. SE; 1.0 River Miles Downstream AQS, A8 0.9 mi. NNE; County Road 448, 0.9 APT, of Discharge North Bank. AQF miles South of Hwy 0. MO S013 4.7 mi. SSE; 105 feet Upstream of SWA A9 1.9 mi. NNW; Community of Reform. APT, Discharge North Bank.

AMO S02 4.9 mi. SE; 1.1 River Miles Downstream SWA B3 1.8 mi. NNW; 0.3 mi. East of the 0 and APT, of Discharge North Bank.

CC Junction, Callaway Electric MO Cooperative Utility Pole No. 18892. F2 1.64 mi. SW; Callaway Plant Forest SOL Ecology Plot F2.

DOI 5.0 mi. SE; Holzhouser Grocery Store/ WWA Tavern (Portland, MO). F6 1.72 mi. NE; Callaway Plant Forest SOL Ecology Plot F6.

F05 0.9 mi. SSE; Onsite Groundwater WWA Monitoring Well. PR3 1.02 mi. ESE; Callaway Plant Prairie SOL Ecology Plot PR3.

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

7

Tab/e I Sampling Locations Continued Location Sample q 2 Code Description' Iypes PR7 0.45 mi. NNW; Callaway Plant Prairie SQL Ecology Plant PR7.

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

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

l II REMP Sample Collection Frequencies and RequiredAnalysis' Sample Sample Type Collection Frequency Required Analysis Airborne Iodine MO Weekly 1-131 weekly Air Particulate APT Weekly Gross Beta weekly 2 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

RadiologicalMonitoringProgram Continued 2.4 Sampling Program Execution and 2.4.2 Detection and Reporting Limits Results Table III gives the required detection limits for radiological environmental sample analysis. For each sample type, the table lists the detection level for each 2.4.1 Program Modifications and Exceptions isotope.

During 2001 no significant changes were made to the The lower limit of detection (LLD) used in this Radiological Environmental Monitoring Program. report is described in NRC Regulatory Guide 4.1 Rev.

1, "Program for Monitoring Radioactivity in the The Radiological Environmental Monitoring Environs of Nuclear Power Plants" and the NRC Program was executed as described in the ODCM with Branch Technical Position, November 1979, "An any exceptions listed in this report. 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 Plantsite. Included is some of the land worked by localfarmers to producefeed for cattle.

10

Table III Detection Capabilitiesfor Radiological Environmental Sample Analysis' Food Soil and Water Airborne Fish Milk Products Sediment Analysis (pCi/i) (pCi/m3 ) (pCi/kg wet) (pCi/I) (pCi/kg wet) (pCi/kg dry)

Gross beta 4 0.01 H-3 3000 Mn-54 15 130 Fe-59 30 260 Co-58, -60 15 130 Zr-Nb-9 54 15 1-131 1000 0.07 I 60 Cs- 134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 2

Ba-La-140 15 15 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

RadiologicalMonitoringProgram Continued 2.4.3 Quality Control Program Another method involves determining if the result originated from weapons testing. The indicator or The contractor laboratory (Environmental, Inc. control sample result can be compared to established Midwest Laboratory) maintains a quality control (QC) environmental levels produced from weapons testing.

program in accordance with Regulatory Guide 4.15. The Program includes laboratory procedures designed to Sample results can also be compared with prevent cross-contamination and ensure accuracy and preoperational levels or samples collected in other parts precision of analyses. QC checks include blind samples, of the country. Results can also be related to events duplicate samples, and spiked samples as necessary to known to have caused elevated levels of radiation in verify laboratory analysis activities are being maintained the environment.

at a high level of accuracy.

The contractor laboratory participates in the Department of Energy's Environmental Laboratory 2.4.5 Waterborne Pathway Quality Assessment Program (EML), Mixed Analyte Performance Evaluation Program (MAPEP) and Surface Water Environmental Resource Associates (ERA). The results of Analysis these crosscheck programs are presented in Section 2.6.

Tritium: A 60-70 ml aliquot of water is purified by The Callaway Plant Personnel Dosimetry program is distillation. A portion of the distillate is transferred to certified by the National Voluntary Laboratory a counting vial and scintillation fluid added. The Accreditation Program (NVLAP) of the National contents of the vial are thoroughly mixed and counted Institute of Standards and Technology (NIST). The in a liquid scintillation counter.

Environmental TLD Program has demonstrated Gamma Spectrometry: A suitable aliquot of compliance with the recommendations of Regulatory prepared sample is placed in a standard calibrated Guide 4.13. Quality control checks are performed container and specific nuclides are identified and including blanks, blind samples, daily performance quantified using a germanium detector coupled to a checks and quarterly crosschecks.

computer based, multichannel analyzer.

Sampling and Frequency 2.4.4 Data Interpretations Monthly composite samples of surface water from Sample analysis results are evaluated to determine if the Missouri River are collected from one indicator the result was due to the operation of the Callaway location (S02) and from one control location (SO 1)

Plant or other sources. and shipped to Environmental, Inc., Midwest Laboratory for analyses..

One evaluation method used is the indicator-control concept. Most sample types are collected at both Results indicator (areas potentially affected by plant operations)

The indicator water sampler (S02) was operational and control locations (areas not significantly affected by plant discharge). A possible plant effect would be 60% of the time during 2001. This sampler is checked indicated if the detected level at an indicator location daily. Immediate action is taken to place the sampler was statistically larger than at the control location. back in service when a problem is identified. If the sampler cannot be returned to service, daily grab 12

RadiologicalMonitoringProgram Continued 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 Sampling of the Missouri River is accomplished using results are inside the range of previous operational an automatedcompositor. Samples are collected on an hourly levels. There was no significant radiological impact on basis and mixed to make the monthly composite sample.

the health and safety of the public or the environment.

River sampling verifies that Callaway Plantdischarges meet stringentregulatory requirements. The gamma analysis results for surface water samples were consistent with previously accumulated data and no plant operational effects were identified.

samples are obtained.

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

Analysis Operational problems included timer and pump failure, clogged suction pipe, electric power outages and low Tritium: A 60-70 ml aliquot of water is purified by river water levels. Corrective actions taken were 1) distillation. A portion of the distillate is transferred to a installation of remote indication equipment which counting vial and scintillation fluid added. The allows for closer monitoring of compositor operation 2) contents of the vial are thoroughly mixed and counted the pump used to transport water from the river to the in a liquid scintillation counter.

compositor was upgraded 3) a review was conducted on Gamma Spectrometry: A suitable aliquot of prepared sample pump preventative maintenance and sample is placed in a standard calibrated container and modifications made to improve performance 4) an specific nuclides are identified and quantified using a additional extension was added to the suction piping to germanium detector coupled to a computer based, prevent failure due to low river water 5) the priority to multichannel analyzer.

perform work on the sampler was increased.

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

Sampling and Frequency of the time during 2001. This sampler is checked Ground water samples are collected quarterly from two weekly. Immediate action is taken to place the sampler sampling wells (F05 and F 15) and one drinking water back in service when a problem is identified. If the well (DO 1). The well samples are collected using an sampler cannot be returned to service, daily grab samples are obtained. Operational problems included a breaker 13

RadiologicalMonitoringProgram 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 Shoreline sediment samples are collected two feetfrom the edge of the water in the same location as the bottom Bottom sediment samples are collected semiannually sediment samples. Sediment samples indicate there has been from one indicator location (C) and one control no impact on the environmentfrom the Callaway Plant location (A). The samples are taken from water at least liquid discharge.

2 meters deep to prevent influence of bank erosion. A Ponar dredge is used to obtain the samples, consisting specific nuclides are identified and quantified using a of the uppermost layer of sediment. Each sample is germanium detector coupled to a computer based, placed, without preservative, in a plastic bag, sealed and multichannel analyzer.

shipped to Environmental, Inc., Midwest Laboratory for analyses. Sampling and Frequency Results Shoreline sediment samples are collected semiannually in the same area as bottom sediment. The samples are The analysis results for bottom sediment samples were collected within two feet of the edge of the water and consistent with previously accumulated data including consist of 2 six-inch diameter by two-inch deep sediment pre-operation and no plant operational effects were plugs. Each sample is placed in a plastic bag, sealed and identified.

shipped to Environmental, Inc., Midwest Laboratory for Shoreline Sediment analyses.

Analysis Results Gamma Spectrometry: A suitable aliquot of prepared The analysis results for shoreline sediment samples sample is placed in a standard calibrated container and 14

RadiologicalMonitoringProgram Continued were consistent with previously accumulated data short-lived radionuclides. The glass fiber type filter is including pre-operation and no plant operational effects placed into a stainless steel planchet and counted for were identified. gross beta radioactivity using a proportional counter.

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

Gamma Spectrometry: A suitable aliquot of prepared The equilibrium concentration at the end of collection is sample is placed in a standard calibrated container and then calculated. Decay correction for the time interval specific nuclides are identified and quantified using a between sample collection and counting is then made.

germanium detector coupled to a computer based, Gamma Spectrometry: Filters are composited multichannel analyzer. according to location and counted using a germanium detector coupled to a computer based multichannel Sampling and Frequency analyzer. The resulting spectrum is analyzed by computer Wetlands soil samples are collected annually from 3 and specific nuclides, if present, identified and indicator locations (W2, W3, and W4) and one control quantified.

location (Wi). Two 6-inch square soil plugs consisting of the uppermost two-inch layer of soil are taken at each Sampling and Frequency location. The samples are placed in plastic bags, sealed Airborne particulate samples are collected on a and shipped to Environmental, Inc., Midwest Labora 47mm diameter glass fiber filter type A/E (99 percent tory for analyses. removal efficiency at 1 micron particulate) at a volumetric rate of one and one-half cubic feet per Results minute at five locations.

Cs-137 was detected in the Wetlands soil samples. Each airborne particulate air sampler is equipped with Station W2 indicated 165 pCi/kg dry, Station W3 a charcoal cartridge filter in-line after the particulate filter indicated 101 pCi/kg dry and Station W4 indicated 91 holder.

pCi/kg dry.

The filters are collected weekly and shipped to The analysis results for Wetlands soil samples were Environmental, Inc., Midwest Laboratory for analyses.

consistent with previously accumulated data and no plant operational effects were identified. The Cs- 137 All five sample locations are considered indicator activity is due to worldwide fallout from atmospheric locations (Al, A7, A8, A9, and B3). One indicator nuclear testing. station (A9) is located at the community with the highest D/Q.

Results 2.4.6 Airborne Pathway Air stations A-8, B-3 and A-7 were operational 100%

Airborne of the time during 2001.

Analysis Station A-I was operational 98.6% of the year. The sampler had a timer failure during the week of 9-12 Gross Beta: The filters are analyzed approximately (CAR 200105776). The timer was replaced. A high five days after collection to allow for decay of natural flowrate was discovered for the sample collected during 15

RadiologicalMonitoringProgram Continued 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/m 3. 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 Airborne samples are continuously collected. Particulates standardized Iodine carrier isstirred with anion exchange are gathered on a glassfiberfilter. A charcoalfilteris in line resin for one hour. The resin is washed with NaCl and after the particulatefilter to collect iodines. Air samples indicate the Callaway Planthas had no impact on the the iodine is eluted with sodium hypochlorite. Iodine in surroundingenvironment. the iodate form is reduced to I2and the elemental iodine extracted into CCI4, back-extracted into water, then precipitated as palladium iodide. The precipitate is the week of 9/6. This caused additional sample to be counted for 1-131 using a proportional counter.

collected for the time period, which made the analysis Gamma Spectrometry: An aliquot of milk is placed in conservative (CAR 200105612). a standard counting container and specific nuclides are Station A-9 was operational 98% of the year. The identified and quantified using a germanium detector particulate filter for Station A-9 collected during the coupled to a computer based, multichannel analyzer.

week of 9-20 was lost in transit to the vendor laboratory.

The cause for the lost sample could not be identified. Sampling and Frequency Plant and vendor laboratory personnel were coached to When available, two-gallon milk samples are increase attention to detail when handling samples (CAR collected semimonthly during the pasture season (April 200105974). This Air Station lost four hours of through September) and monthly during the winter operational time during the week of 8/23 when the from one cow milk location near the Plant M6 and one power pole was replaced. cow milk location away from the Plant M8. Milk Air Station A-7 had a dogged flow meter which samples are shipped in ice to Environmental, Inc.,

caused a low flow reading for the week of 9-20 The clog Midwest Laboratory for analyses within eight days after was caused by dirt that entered through a loose fitting.

collection.

The fitting was replaced (CAR 200107910).

16

RadiologicalMonitoringProgram Continued Results effects were identified.

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

Analysis Location M8:

Samples were unavailable in August, September and Iodine- 131: A suitable aliquot of wet (as received)

October due to the cow in calf. sample is placed into a standard calibrated container and counted using a germanium detector coupled to a The analysis results for milk samples were consistent computer based, multichannel analyzer. A peal of 0.36 with previously accumulated data and no plant MeV is used to calculate the concentration at counting operational effects were identified. time. The equilibrium concentration at the end of collection is calculated by decay correcting for the time interval between sample collection and counting.

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

germanium detector coupled to a computer based, Sampling and Frequency multichannel analyzer.

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

recreational or commercial fish species are collected Vegetation samples consist of mustard greens, turnip semiannually from one indicator location (C) and greens, cabbage, lettuce, one control location (A). and spinach. Other vegetation is collected if Fish samples are shipped to Environmental, Inc., primary varieties are not Midwest Laboratory for available. Samples are analyses. shipped to Environmental, Inc., Midwest Laboratory Results for analyses.

The analysis results for fish Results samples were consistent with previously accumulated data Green leafy vegetation was unavailable due to lack and no plant operational

,re ,'nhjortp,! by Amer Jenbioloists. Fish samfiles of plant growth during the UR indicate there has been no impact on the environment due to operationof the Callaway Plant.

17

RadiologicalMonitoringProgram Continued following periods: designated as controls (IDM-26, IDM-27 and IDM-60).

Location V9: Results January through May, and August Direct Radiation data was unavailable due to Location V1O: vandalism at location IDM-6 and IDM-21 during the No samples were collected during the year due to first quarter and IDM-14 and 3 la during the second weather and flooding quarter. IDM-5 had to be replaced after the first 13 days Location V11: of the second quarter due to vandalism.

January through May, and December The analysis results for TLD samples were consistent Location V12: with previously accumulated data and no plant January through April, August, November and operational effects were identified.

December Soil The analysis results for vegetation samples were consistent with previously accumulated data and no Analysis plant operational effects were Gamma Spectrometry: A suitable aliquot of prepared identified. sample is placed in a standard calibrated container and specific nuclides are identified and quantified using a Direct Radiation germanium detector coupled to a computer based, Analysis multichannel analyzer.

The Union Electric program Sampling and Frequency uses the Panasonic Model UD-814 TLD and Model Soil samples are collected annually from four indicator UD-71 OA automatic dosimeter locations (F2, PR3, F6, and PR7) and one control reader. Each dosimeter consists location (V3). To ensure only the most recent deposition of three elements of CaSO 4 :Tm. Picturedis one of is sampled, the uppermost two-inch layer of soil is taken The dosimeters are sealed in a the forty three dosim at each location. Samples consist of 2 six-inch square soil moisture resistant plastic eter locations used to plugs. The litter at the surface and the root mat is bag and placed inside a measure direct radia considered part of the sample. The samples are placed in polypropylene mesh cylindrical tion. Direct radiation plastic bags, sealed and shipped to Environmental, Inc.,

holder in the environment, data indicates there Midwest Laboratory for analyses.

After exposure in the has been no impact Results environment the dosimeters are from the operation of read and the result is adjusted to the Callaway Plant. Cs- 137 was detected in the soil samples. Control a standard quarter of 90 days. station V3 indicated 220 pCi/kg dry while the highest indicator station indicated 913 pCi/l dry.

Sampling and Frequency The analysis results for soil samples were consistent Thermoluminescent Dosimetry (TLD) is used to with previously accumulated data including pre determine direct radiation levels in and around the operation and no plant operational effects were Callaway site. Forty-three dosimeters are placed in 16 identified. The Cs-137 activity is due to worldwide sectors around the plant as specified in the ODCM. The fallout from atmospheric nuclear testing.

dosimeters are read once per quarter. Three locations are 18

RadiologicalMonitoringProgram Continued 2.5 Land Use Census The Land Use Census is performed annually during Nearest Resident the growing season within a five-mile radius of the The distance of the nearest resident with the highest Callaway Plant. The location of the nearest resident, D/Qwas unchanged for 2001. This resident lives 1.8 milking animal and garden greater then 50 square miles from the plant in the NNW sector.

meters is identified in each of the sixteen meteorological sectors. MilkingAnimals The AmerenUE Real Estate Department conducted Milking animals were identified in the SW sector.

the 2001 Land Use Census during November. Milk is not collected for human consumption at this Information was collected by contacting residents by location. The owners did not want to participate in a phone and conducting field surveys. sampling program. The owners of milking animals in the SSE sector indicated they would participate in the Results sampling program. This location will be pursued for the The results of the 2001 Land Use Census are 2002 sample program.

presented in Table IV. The table includes radial direction and distance from the Callaway Plant for each Vegetable Gardens location. These parameters were determined using a A volunteer in the SE sector had a higher average combination of map position, aerial photography and ground level D/Q then the current participants. This Global Positioning System (GPS) receiver. 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 EnvironmentalMeasurementLabratory Table V QualityAssessment ProgramResults Reported Reference Control Date Type Nudide Value1 Value Limits2 Result Air Filter PASS Mar-01 Beta 2.30 +/- 0.02 2.58 0.76- 1.52 Mar-01 Air Filter PASS Cs-134 2.71 +/- 0.15 2.83 0.74- 1.21 Mar-01 Air Filter PASS Co-60 20.11 0.16 19.44 0.79- 1.30 Mar-01 Air Filter PASS Cs-137 9.86 + 0.23 8.76 0.78- 1.35 Mar-01 Air Filter PASS Mn-54 7.25 + 0.22 6.52 0.80- 1.36 Mar-01 Water PASS Cs-137 70.10 4.00 73.00 0.80- 1.20 Mar-01 Water PASS Alpha 1724.60 +/- 141.70 1900.00 0.58- 1.26 Mar-01 Water PASS Beta 1246.40 31.10 1297.00 0.56- 1.50 Mar-01 Water PASS H-3 76.50 +/- 5.50 79.3 0.74 - 2.29 Mar-01 Water PASS Co-60 97.00 +/- 0.80 98.20 0.80- 1.20 Mar-01 Soil PASS K-40 583.80 +/- 52.60 468.00 0.80- 1.37 Mar-01 Soil PASS Cs-137 1772.60 +/- 79.8 1740.00 0.80- 1.29 Mar-01 Vegetation PASS Cs-137 795.50 +/- 76.40 842.00 0.80- 1.37 Mar-01 Vegetation PASS K-40 592.60 +/- 42.50 603.00 0.78- 1.43 Mar-01 Vegetation PASS CO-60 28.50 +/- 2.10 30.40 0.75- 1.51 Sep-01 Air Filter PASS Co-60 16.90 +/- 0.30 17.50 0.79- 1.30 Sep-01 Air Filter PASS Cs-137 18.30 +/- 0.30 17.10 0.78- 1.35 Sep-01 Air Filter PASS Mn-54 85.40 +/- 1.30 81.15 0.80- 1.36 Sep-01 Air Filter PASS Beta 13.80 +/- 0.10 12.77 0.76- 1.52 Sep-01 Air Filter PASS Cs-134 11.80 +/- 0.20 12.95 0.74- 1.21 Sep-01 Water PASS Co-60 206.70 +/- 4.70 209.00 0.80- 1.20 Sep-01 Water PASS Cs-137 46.60 0.80 45.133 0.80- 1.24 Sep-01 Water PASS Alpha 1220.00 32.00 1150.00 0.58- 1.26 Sep-01 Water PASS Beta 8461.00 +/-206.00 7970.00 0.56- 1.50 Sep-01 Water PASS H-3 254.10 +/- 3.60 207.00 0.74- 2.29 Sep-01 Soil PASS Cs-137 659.20 +/- 10.80 612.33 0.80- 1.29 Sep-01 Soil PASS K-40 737.70 +/- 16.60 623.33 0.80- 1.37 Vegetation PASS Sep-01 Co-60 40.20 +/- 0.90 35.30 0.75- 1.51 Vegetation PASS Sep-01 Cs-137 1184.00 +/-2.80 1030.00 0.80- 1.37 Vegetation PASS Sep-01 K-40 1023.00 +/-44.10 898.67 0.78- 1.43 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 2001 MAPEP andERA Results MLAPEP Reported Reference Control Date Type Nudlide Value1 Value Limits 2 Result

.. .. . . I . . . . . . .. . . . I . .. . . ..... . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .

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

2 Control Limits are defined by MAPEP and ERA.

22

RadiologicalMonitoringProgram Continued 2.7 Data Reporting Conventions 2.8 Radiological Environmental Monitoring Program Annual Summary Lower Limit of Detection The REMP Summary is presented in Table VI With the The lower limit of detection (LLD) used in this exception of a small indication of tritium in river water, report is per NRC Regulatory Guide 4.1, Rev. 1, there was no measurable impact on the environment "Program for Monitoring Radioactivity in the Environs due to plant operation.

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 isfound to be below the sample analysis minimum detection activity it is reported as Not Detected (ND).

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) 105 317 (4/12) S02 317 (4/12) - (0/12) 0 (pCi/1) (199 - 548) 4.9 mi SE (199 - 548)

Gamma (24) -(0/12) NA NA -- (0/12) 0 Shoreline Sediment Gamma (4) -- (0/2) NA NA -- (0/2) 0 (pCi/kg)

Airborne Pathway Airborne Particulate Gross (258) 0.023 (258/258) B-3 0.024 (52/52) NA 0 (pCi/m3) Beta (0.006 - 0.054) 1.8 mi NNW (.008 - 0.050)

Gamma (20) - (0/20) NA NA NA 0 1-131 (259) 0.070 - (0/259) NA NA NA 0 24

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 Ingestion Pathway Milk Gamma (32) (0/18) NA NA - (0/14) 0 1-131 (32) 0.2 - (0/18) NA NA - (0/14) 0 Fish Gamma (20) - (0/10) NA NA - (0/10) 0 (pCi/kg - wet)

Vegetation Gamma (30) -- (0/30) NA NA -- (0/8) 0 (pCi/kg - wet) 1-131 (30) 7.2 -- (0/30) NA NA -- (0/8) 0 Direct Radiation QuarterlyTLDs Gamma (168) 10 16.6 (156/156) 31a 18.7 (3/3) 15.3 (12/12) 0 (mRem/Standard Dose (10/20) 7.8 mi SW (18- 19) (10- 19)

Quarter)

The LLDs quoted is the lowest actual detection limit obtained in the various media during 2 Mean and range are based upon detectable measurements only.

the reporting period. The required LLDs for radiological environmental sample analysis is Fraction of detectable measurements is indicated in parentheses.

found in Table III. Where all nuclides were LLD for specific media, no LLD was listed.

25

RadiologicalMonitoringProgram Continued 2.9 Individual Sampling Results The REMP Individualsample results arepresented in Tables VII throughXVI.

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 surroundingthe 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 Departmentof Conservation.

26

Airborne Beta & Iodine Table VII (All results are the effect of naturalbackground)

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

Airborne Gamma Composites Table VIII (All results are the effect of naturalbackground)

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

Soil Table IX (All results are the effect of naturalbackground)

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 12,382 13,921 14,982 14,558 14,471 Gross Beta 25,638 31,144 27,388 21,223 29,782 K-40 12,452 10,919 11,057 11,318 18,210 Cs-137 632 913 527 354 220 Wi W2 W3 W4 12/19/01 12/19/01 12/19/01 12/19/01 Gross Alpha 8,978 16,376 13,048 11,248 Gross Beta 19,164 28,443 24,565 21,617 K-40 12,880 15,886 13,032 13,215 Cs-137 ND 165 101 91

'Mn-54, Fe-59, Co-58, Co-60, Zr-95, Nb-95, Cs-134, Ba-140, La-140, Not Detectable 29

Vegetation Table X (All results are the effect of naturalbackground)

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 124 ND ND 68 Gross Beta 5,675 4,252 4,405 4,496 K-40 5,360 4,720 4,124 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 naturalbackground)

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 68 38 ND ND 54 74 Gross Beta 4,186 2,652 5,730 3,844 4,104 3,930 K-40 4,274 2,962 5,038 4,102 3,596 2,786 V12 517101 5/22/01 6/11/01 6/26/01 7/10/01 7/23/01 Lettuce Mustard Greens Cabbage Lettuce 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 85 90 Gross Beta 3,765 4,438 K-40 4,304 4,583 1Mn-54, Co-58, Co-60, 1-131, Cs-134, Cs-137, Not Detectable 31

Surface Water Table XI (All results except tritium are the effect of naturalbackground)

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 1.7 3.5 3.4 3.4 4.3 2.8 Gross Beta 7.7 8.1 8.4 8.6 9.6 7.2 H-3 ND ND ND ND ND ND

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

Table XII 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

Sediments Table XIII (All results are the effect of naturalbackground)

Gamma Isotopic' (pCi/kg dry)

Bottom Sediments A C 4/25/01 10/23/01 4/25/01 10/23/01 K-40 11,712 12,176 K-40 13,156 13,278 Cs-137 ND ND Cs-137 ND ND Shoreline Sediments A C 4/25/01 10/23/01 4/25/01 10/23/01 K-40 13,362 13,376 K-40 15,794 13,388 Cs-137 ND ND Cs-137 ND ND Mn-54, Fe-59, Co-58, Co-60, Zr-95, Nb-95, Cs-134, Ba-140, La-140, Not Detectable 34

Fish Table XIV (All results are the effect of naturalbackground)

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 ofnaturalbackground)

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

DirectRadiation Table XVI (All results are the effect of naturalbackground)

Gamma Dose (mrem)

QTR 1 QTR 2 QTR 3 QTR 4 QTR 1 QTR 2 QTR 3 QTR 4 la 15 15 18 18 34 15 16 17 18 3 18 16 20 18 35 13 15 16 17 5 14 15 16 16 36 15 12 16 16 6 NA 14 19 16 37 17 15 18 17 7 18 15 19 17 38 12 10 13 12 9 14 13 16 15 39 15 15 17 17 10 18 16 19 19 39a 17 17 19 19 1la 17 16 19 19 40 17 17 19 19 14 16 NA 18 17 41 17 15 19 16 17 16 15 18 17 42 12 12 14 15 18a 16 15 17 17 43 16 16 18 18 20 17 15 19 17 44 17 15 19 18 21 NA 16 19 18 45 15 15 16 16 22a 16 15 18 16 46 16 15 18 17 23 16 15 19 17 47 17 15 18 16 26 11 10 13 13 48 16 17 19 19 27 17 15 19 17 49 17 15 18 17 30a 17 13 18 16 50 17 15 18 20 31a 19 NA 19 18 51a 17 18 18 19 32 18 16 19 17 52 16 17 18 19 32a 17 16 20 17 60 17 16 18 18 33 18 15 18 17 37

3.0 Non-RadiologicalMonitoringProgram 3.1 Introduction operation change that could have involved a potentially significant unreviewed environmental question. The Union Electric Company, d.b.a. AmerenUE, in interpretations and conclusions regarding this plant accordance with federal regulations and a desire to change along with a description of the change are maintain the quality of the local environment around presented below.

Callaway Plant has implemented an Environmental Protection Plan, (EPP) contained in Appendix B of the Callaway Temporary Modification TM 01-0009 Callaway Plant Operating License. Revision 0 The objective of the EPP is to provide for protection of non-radiological environmental values during Description of Change:

operation of the Callaway Plant.

Temporary modification TM 01-0009 installed a This report describes the conduct of the EPP for the NUKEM Ultra-Filtration Demin Skid in the liquid Callaway Plant during 2001. 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 3.2 Unusual or Important Events ary liquid waste evaporator.

No unusual or important events reportable under the EPP Section 4.1 were identified during 2001. Evaluation of Change:

The decontamination factors for processing liquid radwaste with the temporary NUKEM equipment are 3.3 EPP Noncompliances not currently known. However, all effluents from this During 2001 there were no noncompliances with the treatment system will be routed to the discharge monitor EPP 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 3.4 Nonroutine Reports NUKEM equipment will be evaluated to determine There were no nonroutine reports submitted in decontamination factors for radionuclides as well as for accordance with the EPP, Section 5.4.2 in 2001. 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 3.5 Plant Design and Operation tion will not significantly affect the concentrations, Environmental Evaluations. frequencies or types of effluent being discharged from This section lists all changes in the plant design, the plant, and does not affect the current plant power operation, tests or experiments completed during 2000, level. Therefore, this change does not constitute an which could have involved a potentially significant unreviewed environmental question per Section 3.1 of unreviewed environmental question in accordance with appendix B to the Callaway Plant Operating License.

section 3.1 of Appendix B.

During 2001, there was one plant design and 38