ULNRC-03820, 1997 Annual Environ Operating Rept for Callaway Plant. W/
| ML20216B230 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 12/31/1997 |
| From: | Passwater A UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| ULNRC-03820, ULNRC-3820, NUDOCS 9805150101 | |
| Download: ML20216B230 (112) | |
Text
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. / er Ucion Electric One Ameren Plaza 1901 Chouteau Avenue PO Box 66149 St. Louis, MO 631664149 314 611.3222 May 1,1998 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20556 9)f g g g Gentlemen: ULNRC-03820 UE DOCKET NUMBER 50-483 UNION ELECTRIC COMPANY CALLAWAY PLANT FACILITY OPERATING LICENSE NPF-30 1997 ANNUAL ENVIRONMENTAL OPERATING REPORT Please find enclosed the 1997 Annual Environmental Operating Report for the Callaway Plant. This report is submitted in accordance with section 6.9.1.6 of the Technical Specification and Appendir B to the Callaway Plant Operating License.
Sincerely, r a.,- ,~
Alan C. Passwater Manager, Licensing and Fuels BFH/plr Enclosure l-i.
9905150101 971231 ()g-l
! PDR ADOCK 05000483 1 /
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- M. H. Fletcher Professional Nuclear Consulting, Inc.
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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 l U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Krir. tine M. Thomas (2) i Office ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission I White Flint, North, Mail Stop 13E16 11555 Rockville Pike
- Rockville, MD 20852-2738 Manager, Electric Department Missouri Public Service Commission P.O. Box 360 Jefferson City, MO 65102 Bob Hentges Regional Administrator Department ofNatural Resources Central Regional Office P.O. Box 176 Jefferson City, MO 65102 1
L Gerhard K. Samide ANI Account Engineer Town Center, Suite 3005 29 S. Main St.
West Hartford, CT 06107-2445 i
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ANNUAL ENVIRONMENTAL I
OPERATINGREPORT 1997 I
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DOCKET NO. 50-483 I
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TAILLE OF CONTENTS
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l- Section Title i
l 1.0 Introduction 2.0 Conclusion 3.0 Radiological Environmental Monitoring Program l
4.0 Nonradiological Environmental Monitoring Program l
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1.0 INTRODUCTION
-The Callaway Plant received an Operating License on
, June 11, 1984. This report presents analytical data j
from the environmental monitoring programs-with appropriate interpretation for 1997 and environmental-evaluations for plant modifications completed during 1997.
The' third'section of this report summarizes and l interprets results of the radiological environmental monitoring program conducted in accordance with Final Safety Analysis Report Section 16.11.4.
Section four describes the conduct and results of the i
activities associated with the Environmental' Protection Plan (EPP) contained in Appendix B to the {
Callaway Plant Operating License. l This Annual Environmental Operating _ Report is submitted in accordance with Section 6.9.1.6 of the Technical Specifications and Appendix B to the l Callaway Plant Operating License.
2.0 CONCLUSION
l The third section of this report contains results of
! radiological environmental monitoring conducted in the j L vicinity of the Call.away Plant during 1997. '
Comparison of results for 1997 to preoperational data and data from previous years of operation showed no
! significant or adverse effects from operation of Callaway Plant on the environment.
There were no Envirorimental Protection Plan noncompliances or reportable events identified during 1997.
There were no plant modifications-completed during 1997 with an unreviewed environmental question as discussed in section.four of this report.
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UNION ELECTRIC COMPANY l
CALLAWAY PLANT l
SECTION 3.0 RADIOLOGICAL ENVIRONMENTAL i
MONITORING PROGRAM ANNUAL REPORT 1997 I
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CONTENTS Section Iitl_e P_aage '
Abstract
- 1 1.0 Introduction 2 2.0 Radiclogical Environmental Monitoring Program 2 2.1 Program Design 2 4
2.2 Program Description 3 2.3 Program Execution 16 2.4 Analytical Procedures 17 2.5 Program Modifications 22 3.0 Isotopic Detection Limits and Activity Determinations 22 4.0 Quality Control Program 24 5.0 Data Interpretations 24 6.0 Results and Discussion 25 6.1 Waterborne Pathway 25 6.2 Airborne Pathway 26-6.3 Ingestion Pathway 27 6.4 Direct Radiation 29 Appendix A: 1997 Land Use Census Al Appendix B: EPA Cross-check Results B1 Appendix C: Isotopic Detection Limits and Activity Determinations Cl Appendix D: Radiological Environmental Monitoring Program Annual Summary D1 Appendix E: Individual Sample Results El
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l Number Title Pace I Sampling Locations 7 II Collection Schedule 13 III Detection Capabilities for Environmental Sample Analysis 23 i
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FIGURES Number Title E_aage 1 Distant Collection Locations 4 2 Near Site Collection Locations 5 3 On-Site Collection Locations 6 i
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Abstract This report presents the Callaway Plant Radiological Environmental Monitoring Program (REMP) data obtained from analysis of environmental samples collected in 1997.
Evaluation of radiation levels in the environs around Union Electric Company's (UEC) Callaway Plant involved sampling at strategic points in various exposure pathways. The following types of samples were collected and analyzed: milk, vegetation, surface water, well water, bottom sediment, shoreline sediment, fish, airborne particulates, airborne radiciodine, direct radiation (TLD), soil and wetlands.
Analytical results are presented and discussed along with other pertinent information. Possible trends and anomalous results, as interpreted by Union Electric Company personnel, are discussed as appropriate.
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1.0 INTRODUCTION
t This report presents an analysis of the results of the REMP conducted during 1997 for Union Electric Company, Callaway Plant.
In accordance with federal and state regulations and the desire to maintain the quality of the local environment, UEC began its radiological monitoring program in April,1982. t The objectives of the REMP are to monitor potential critical pathways of radioefiluent to man and determine the radiologicalimpact on the environment caused by operation of l Callaway Plant.
Callaway Plant consists of one 1239 MWe pressurized water reactor, which achieved I-initial criticality on October 2,1984. The plant is located on a plateau approximately ten E
miles southeast of the City of Fulton in Callaway County, Missouri and approximately g 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.
2.0 RADIOLOGICAL ENVIRONMENT MONITORING PROGRAM 2.1 Program Design The purpose of the operational REMP at Callaway Plant is to assess the impact of plant operation on the environment. For this purpose, samples are collected from waterborne, airborne, ingestion and direct radiation pathways. Sampling media are selected which are likely to show effects of plant effluents and which are sensitive to changes in radioactivity levels. The types of sample media collected are: milk, surface water, groundwater, shoreline sediment, bottom sediment, soil, wetlands, fish, vegetation, airborne particulate, airborne radiciodine and direct radiation (TLD).
Samples are collected by Union Electric personnel and shipped to Teledyne Isotopes Midwest Laboratory (TIML) for analysis. TLD's are analyzed by Union Electric i
personnel. The data obtained are reported monthly and summarized in the annual report.
1 Environmental sample locations are divided into two types, indicator and control.
Indicator samples are those collected from locations which would be expected t manifest plant effects, if any. Control samples are collected at locations which are Bi 3l expected to be unaffected by plant operation.
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2.2 Procram Description Sample locations for the REMP are shown in Figures 1,2 and 3. Table I describes the sample locations, direction and distance from the plant, which are control and which are indicator locations, and the types ofsamples collected at each location. Sample collection frequencies and required analyses for each sample type are given in Table 11.
The collections and analyses that comprise the program are described in the following pages.
Identification of sample type codes used in Table I are as follows:
Code Samnie Collected AIO 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 2.2.1 Waterborne Pathway Surface Water Monthly camposite samples of surface water from the Missouri River are collected from one indicator location (SO2) and from one control location (S01). The samples are analyzed for tritium and by gamma spectrometry.
Ground Water Ground water samples are collected quarterly from two on-site wells (F05 and F15) and one off-site well used for drinking water (D01). The on-site ground water samples are i
collected using a manual grab sampler which is lowered into the well. The oft-site ground water sample is collected from a faucet after allowing the line to flush for two minutes. Ground water samples are analyzed for Tritium and gamma emitting nuclides.
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r 31 TA BII I SAMPLING LOCATIONS Location Sample Code Description Types la 10.8 mi NW; City of Felton on Hwy Z,0.65 mi East of IDM Business 54, West of Campus Apartments 1 2 6.6 mi NW; County Road 111,0.6 mi South of Hwy UU, IDM Callaway Electric Cooperative Utility Pole No.17571.
I 3 1.3 mi NW; 0.1 mi West ofHwy CC on Gravel Road,0.8 mi IDM South Hwy 0, Callaway Elcctric Cooperative Utility Po le No.
i 18559.
4,B3 1.9 mi N; 0.3 mi East of the 0 and CC Junction, Callaway IDM, APT, AIO Electric Cooperative Utility Pole No.18892.
5, Al 1.3 mi ENE; Primary Meteorological Tower. IDM, APT, AIO 6 2.0 mi W; County Road 428,1.2 mi West ofHwy CC, IDM Callaway Electric Cooperative Utility Pole No.18609.
7 1.3 mi S; County Road 459,2.6 mi North of Hwy 94, IDM Callaway Electric Cooperative Utility Pole No 35097 8 2.9 mi S; County Road 459,1.4 mi North of Hwy 94, IDM l Callaway Electrical Cooperative Utility Pole No. 06823.
9 3.7 mi S; NW Side of the County Road 459 and 94 Junction, IDM Callaway Electric Cooperative Utility Pole No. 06754.
10 4.0 mi SSE; Hwy 94,1.8 mi East of County Road 459, IDM Callaway Electric Cooperative Utility Pole No.12182, 1la 4.9 mi SE; City of Portland, Callaway Electric Cooperative IDM Utility Pole No.12110.
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TAltlI I (Cont'd.)
SAMPLING LOCATIONS ,
Location Sample l Code Description Types 12a 5.2 mi SE; East Side of Hwy 94,0.6 mi South of Hwy D, IDM Callaway Electric Cooperative Utility Pole No. 27536.
13 5.6 mi ESE; Hwy 94,0.75 mi East of Hwy D, Kingdom IDM Telephone Pole No. 2X1.
14 5.0 mi ESE; SE Side ofIntersection D and 94, Callaway IDM Electric Cooperative Utility Pole No. I1940.
15a 4.6 mi ESE; East Side ofHwy D,3.8 mi South of Hwy 0, IDM Kingdom Telephone Pole No. 2Yl. ,
16a 3.7 mi E; West Side of Hwy D,1.6 mi South of Hwy 0, IDM Kingdom Telephone Pole No. 3x9. '
17 4.0 mi E; County Road 4053,0.3 mi East of Hwy 94, IDM Kingdom Telephone Company Pole No. 3X12.
1Sa 3.9 mi ENE; East side of Hwy D,0.5 mi South of O, Callaway IDM Electric Cooperative Utility Pole No. 38579.
l 19 4.2 mi NE; Hwy D,0.3 mi North of Hwy 0, Callaway Electric IDM Cooperative Utility Pole No.12918.
20 4.8 mi NE; City of Readsville, Callaway Electric Cooperative Utility Pole No.12830.
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21 4.0 mi NNE; County Road 155,1.9 mi North of Hwy 0, IDM g Callaway Electric Cooperative Utility Pole No.19100. 5 22a 2.0 mi NNE; North Side of Hwy 0,100 feet East of County IDM Road 150, Callaway Electric Cooperative Utility Pole No.
31094.
23 6.7 mi NNE; City of Yucatan, Callaway Electric Cooperative IDM Utility Pole No.12670 I
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TAHLE I (Cont'd.)
SAMPLING LOCATIONS Location Sample Code Description Types 24 7.0 mi NE; County Road 191,2.1 mi North ofHwy K, IDM Callaway Electric Cooperative Utility Pole No.12498 25 8.7 mi E; County Road 289,0.3 mi South of County Road IDM 287, Callaway Electric Cooperative Utility Pole No. I1295.
26** 12.1 mi E; Town of Americus, Callaway Electric Cooperative IDM Utility Pole No. I1159.
27** 9.5 mi ESE; Town of BlufRon, Callaway Electric Cooperative IDM Utility Pole No. I1496.
28 3.3 mi SE; County Road 469,2.0 mi North ofHwy 94, IDM Callaway Electric Cooperative Utility Pole No. 06896.
29 2.7 mi SSW; County Road 448,1.2 mi North of County Road IDM 459, Callaway Electric Cooperative Utility Pole No. 06851.
30a 4.4 mi SSE; City of Steedman, N side of Belgian Dr.,150 feet IDM l East of Hwy CC, Callaway Electric Cooperative Utility Pole No. 06557.
l 31a 7.8 mi SW; City ofMokane, Junction Hwy C and County IDM Road 400,0.9 mi North of Hwy 94, Callaway Electric Cooperative Utility Pole 32 5.4 mi WSW; Hwy VV,0.6 mi West of County Road 447, IDM Callaway Electric Cooperative Utility Pole No. 2703).
33 7.3 mi W; City of Hams Prairie, SE of Hwy C and AD IDM Junction.
34 9.7 mi WNW; NE Side of Hwy C and County Road 408 i
IDM Junction.
35 5.S mi NNW, City of Toledo, Callaway Electric Cooperative IDM Utility Pole No.17684.
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TAILLE .,(Cont'd.)
SAMPI,1NG LOCATIONS Location Sample
_ Code Description Types 36 5.2 mi N; County Road 155,0.8 mi South of County Road IDM 132, Callaway Electric Cooperative Utility Pole No.19137.
37 0.7 mi SSW; County Road 459,0.9 mi South of Hwy CC, IDM Callaway Electric Cooperative Utility Pole No. 35077 38 4.8 mi NNW; County Road 133,1.5 mi South of Hwy UU, IDM Callaway Electric Cooperative Utility Pole No. 34708.
39 5.4 mi NW; County Road 112,0.7 mi East of County Road IDM 111, Callaway Electric Cooperative Utility Pole No.17516.
l 40 4.2 mi WNW; NE Side of County Road 112 and Hwy 0, IDM l Callaway Electric Cooperative Utility Pole No. 06326.
41 4.8 mi W; Hwy AD,2.8 mi East of Hwy C, Callaway Electric IDM I Cooperative Utility Pole No.18239.
42 4.4. mi SW; County Road 447,2.6 mi North of County Road IDM I 463, Callaway Electric Cooperative Utility Pole No. 06326.
43 0.5 mi SW; County Road 459,0.7 mi South of Hwy CC, IDM I
Callaway Electric Cooperative Utility Pole No. 35073.
44 1.7 mi WSW; Hwy CC,1.0 mi South of County Road 459, IDM Callaway Electric Cooperative Utility Pole No.18769.
45 1.0 mi WNW; County Road 428,0.1 mi West of Hwy CC, IDM Callaway Electric Cooperative Utility Pole No.18580.
46 1.5 mi NNW; NE Side of Hwy CC and County Road 466 IDM Intersection, Callaway Electric Cooperative Utility Pole No.
28242.
47 0.9 mi NNE; County Road 448,0.9 mi South of Hwy 0, IDM Callaway Electric Cooperative Utility pole No. 28151.
48 0.4 mi NE; County Road 448,1.5 mi South of Hwy 0. Plant IDM Security Sign Post.
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TAHLE I (Cont'd.)
SAMPLING LOCATIONS Location I Code Description Sample Types 49 1.7 mi E; County Road 448, Callaway Electric Cooperative IDM Utility pole No. 06959, Reform Wildlife Management Parking Area.
I 50 0.9 mi SSE; County Road 459,3.3 mi North ofHwy 94, IDM Callaway Electric Cooperative Utility Pole No. 35086.
r I Sla 0.3 mi SE; Owner Control Fence, SE of the Water Treatment IDM Plant.
52 0.4 mi ESE; Light Pole Near the East Plant Security Fence. IDM A7 9.5 mi NW; C. Bartley Farm. APT,AIO A8 0.9 mi NNE; County Road 448,0.9 miles South ofHwy O. APT,AIO A9 1.7 mi NNW; Community of Reform. APT,AIO D01 5.1 mi SE; Holzhouser Grocery Story /ravern (Portland, MO). WWA F05 1.0 mi SSE; Onsite Groundwater Monitoring Well. WWA F15 0.5 mi NE; Onsite Groundwater Monitoring Well. WWA I MS 3.1 mi NW; Schneider Farm (Goats' milk). MLK M6 2.7 mi NW; Pierce Farm (Cows' milk). MLK M7*
- 14.8 mi SW; Kissock Farm (Cows' milk) (Replaced by MLK I location MS on 6/01/97)
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- 18.7 mi WSW; Kissock's Farm, South ofNew Bloomfield, MLK l MO (Cows' milk) (Initiated 06/01/97)
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FPL VIO 3.4 mi SSW; Brandt Farm FPL I
TAHIS I (Cont'd.)
SAMPLING LOCATIONS Location Sample Code Description Types A** 4.9 mi SSE; 0.6 River Miles Upstream ofDischarge North AQS, AQF Bank.
C 5.1 mi SE; 1.0 River Miles Downstream of Discharge North AQS, AQF Bank.
Sol ** 4.8 mi SE; 105 feet Upstream ofDischarge North Bank. SWA S02 5.2 mi SE; 1.1 River Miles Downstream of Discharge North SWA Bank.
F1 0.98 mi S; Callaway Plant Forest Ecology Plot Fl. SOL F2 1.64 mi SW; Callaway Plant Forest Ecology Plot F2. SOL F6 1.72 mi NE; Callaway Plant Forest Ecology Plot F6. SOL F8 1.50 mi NE; Callaway Plant Forest Ecology Plot F8. SOL F9 1.45 mi NNW; Callaway Plant Forest Ecology Plot F9. SOL PR3 1.02 mi ESE; Callaway Plant Prairie Ecology Plot PR3. SOL I
PR4 1.34 mi ESE; Callaway Plant Prairie Ecology Plot PR4. SOL PRS 1.89 mi NE; Callaway Plant Prairie Ecology Plot PR5. SOL PR7 0.45 mi NNW; Callaway Plant Prairie Ecology Plot PR7. SOL PP 10 1.55 mi NNW; Callaway Plant Prairie Ecology Plot PRIO. SOL Wl *
- 0.61 mi SE; Callaway Plant Wetlands, High Oround SOL W2 0.60 mi SE; Callaway Plant Wetlands, Inlet Area SOL W3 0.72 mi SSE; Callaway Plant Wetlands, Discharge Area SOL W4 0.6S mi SSE; Callaway Plant Wetlands, SW Bank SOL
- All distances are measured from the center line of the reactor
- Controllocations I
1 TABLE 11 REMP SAMPLE COLLECTION FREOUENCIES AND REOIIIRED ANAINSES Sample Sample Type Code Collection Frearency Required Analysis Airborne Iodine AIO Weekly I-131 weekly Air Particulate APT Weekly Gross Beta weekly' Sr 89/90 and Gamma Isotopic of quanerly filter composite Fish AQF Semiannually SR-89/90 and Gamma Isotopic Sediment AQS Semiannually Gamma Isotopic Leafy Green FPL Monthly during the growing season Gross Alpha, Gross Beta, Vegetables I-131, and Gamma Isotopic TLD IDM Quarterly and yearly Gamma Dose Milk MLK Semimonthly when animals are on 1-131, Sr-89/90, Ca, and Pasture; monthly otherwise Gamma Isotopic Soil SOL Annually Gross Alpha, Gross Beta and Gamma Isotopic Surface Water SWA Monthly composite H-3 and Gamma Isotopic Ground Water WWA Quarterly Grab H-3 and Gamma Isotopic Note: 1) If gross beta activity is greater than the established baseline activity level gamma isotopic analysis is performed on the individual sample.
I Bottom Sediment Bottom sediment samples are collected semi-annually from one indicator location (C) and one control location (A). The samples are taken from water at lea:,t 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 and sealed. Bottom sediment samples are analyzed for gamma emitting isotopes.
Shoreline Sediment Shoreline sediment samples are collected semi-annually in the same area as bottom sediment. The samples are collected within two feet of the waters edge and consist of 2 six inch diameter by two inch deep sediment plugs. Each sample is placed in a plastic bag and sealed. Shoreline sediment samples are analyzed for gamma emitting isotopes.
Wetlands Soil 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 g uppermost two-inch layer of soil are taken at each location. The samples are placed in 3 plastic bags and sealed. Wetlands soil samples are analyzed for gross alpha, gross beta, and gamma emitting isotopes.
2.2.2 Airborne Pathway Airborne Particulates 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. The particulate filters are collected weekly and shipped to TIML for analyses. The filters are analyzed for gross beta activity approximately five days after collection to allow for decay ornaturally-occurring short-lived radionuclides. Quarterly composites of filters by location are gamma-scanned and analyzed for Strontium-89 and Strontium-90. All five sample locations are considered indicator locations (A1, A7, A8, A9, and B3). One of the indicators (A9) is located at the community with the highest D/Q.
Airborne lodine Each airborne particulate air sampler is equipped with a charcoal cartridge in-line afier the particulate filter holder. The charcoal canridge at each location is collected at the same time as the particulate filter and analyzed for Iodine-131 within eight days after collection.
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2.2.3 Ingestion Pathway Milk Two gallon milk samples are collected semi-monthly during the pasture season (April through September) and monthly during the winter from one goat and one cow milk location near the Plant (M5 and M6) and two cow milk locations away from the Plant (M7 and M8). Milk samples are shipped in ice to be received by TIML within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of collection. Analyses for Iodine-131, elemental calcium, Strontium-89, Strontium-90, and gamma emitting nuclides are performed on all milk samples.
Fish The five most abundant recreational or commercial fish species are collected semi-annually from one indicator location (C) and one control location (A). Fish samples are filleted and are analyzed for Strontium-89, Strontium-90 and gamma emitting isotopes.
Vegetation Monthly, during the growing season, green leafy vegetation is collected from two indicator locations (V6 and V10) and from one control location (V3). Vegetation samples consist ofmustard greens, turnip greens, cabbage, lettuce, and spinach. The vegetation samples are analyzed for gross alpha, gross beta, Iodine-la 1, and by gamma spectrometry.
Soil Once a year soil samples are collected from ten indicator locations (F1, F2, PR3, PR4, PR5, F6, PR7, F8, F9, and PRIO) 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 and sealed. Each soil sample is analyzed for gross alpha, gross beta, and gamma emitting isotopes.
2.2.4 Direct Radiation Thermoluminescent Dosimetry Thermoluminescent Dosimetry (TLD)is employed 'to deterrnine direct radiation levels in and around the Callaway site. Panasonic model UD-814 TLDs sealed in plastic bags are placed in polypropylene mesh cylindrical holders at fifty-two locations and exchanged quarterly and annually. Fifty of the fifty-two locations are indicators (1 through 25 and 28 through 52) and two locations are controls (26 and 27).
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2.3 Program Execution The program was executed as described in the preceding section with the following exceptions; Surface Water
- 1. The downstream composite sampler was out of service from 01/07/97 to 01/22/97 due to flooding of sample pump vault.
- 2. During the period of 02/22/97 to 03/05/97 the downstream composite sampler was removed from service due to Missouri River conditions.
- 3. The downstream compositor sampler was out of senrice from 04/20/97 to 04/25/97 for replacement of a broken sample pump.
l 4. From 06/06/97 to 06/11/97 the downstream composite sampler was out of g service due to equipment malfunctions. E
- 5. Due to malfunction of the sample valve, the downstream composite sampler was inoperable from 09/25/97 to 10/02/97.
- 6. The downstream composite sampler was out of service on 10/17/97 through 10/20/97 due to electric problems with power supply, t
- 7. The downstream sampler was out of service from 10/24/97 to 10/28/97 due to the sample valve being stuck in the wrong position.
- 8. During the period of 11/09/97 to 1!!!2/97 the downstream composite sampler was inoperable due to sample pump failure.
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- 9. The downstream sampler was out of service from 11/20/97 to 11/26/97 due to malfunction of composite sampling equipment.
While the composite samplers were inoperable, daily grab samples were taken and composited monthly, except as noted below:
- 10. Location SO2 daily grab samples were not collected from 01/11/97 to 01/14/97 and from 01/20/97 to 01/24/97 due to unsafe ice conditions on the river bank at i the sample location..
I 1. Daily grab samples were not collected at location SO2 on 02/23/97 due to flooding. The water within reach of the bank was stagnant and not representative.
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Airborne
- 1. The air particulate and airborne iodine sample results from location A8 for the collection periods ending 06/26/97 and 07/25/97 were questionable because the sampler did not continuously operate for the entire collection period.
Milk 1.
Milk samples were unavailabl~ from location M5 during the months ofJanuary, February, March, November and December. Goats were not producing milk during these months.
Vecetatiqn 1.
Green leafy vegetation was unavailable from location V9 during the month of May due to lack of plant growth.
- 2. There were no green leafy vegetation samples collected from location V3 for the
' months of September, October, and November due to weather related lack of plant growth or loss.
Direct Radiation
- 1. There was no direct radiation data from location 3,6, and 10 for the third quarter because of TLD station vandalism.
2.
There was no direct radiation data from location 28 for the fourth quarter because of TLD station vandalism.
E 3.
Annual _TLD's from locations 3 and 6 were missing from the TLD holder during the third quarter TLD changeout. New annual TLDs were installed at these locations.
4.
There was no annual direct radiation data from location 28 due to vandalism of TLD station.
2.4 Anahtical Procedures I Analytical procedures and counting methods employed by the contractor laboratory follow those recommended by the U.S. Public Health Service publication, Radioassay Procedures for Environmental Samples, January 1967; and the U.S. Atomic Energy Commission Health and Safety Laboratory, HASL Procedures Manual, (HASL-300),
1972.
m
I A synopsis of the routinely used analytical procedures for sample analyses is presented below.
2.4.1 Airborne 2.4.1.1 Gross Beta The glass fiber filter type A/E (99 percent removal efficiency at 1 micron particulate), is placed into a stainless steel planchet and counted for gross beta radioactivity using a proportional counter.
2.4.1.2 Gamma Spectrometry Filters are composited according to location and counted using a germanium detector g
coupled to a computer based, multi-channel analyzer. The resulting spectrum is E
analyzed by computer and specific nuclides, if msent, identified and quantified.
2.4.1.3 Strontium-89 and Strontium-90 The composited filters, with stable strontium and barium carriers added, are leached in g nitric acid to bring deposits into solution. After filtration, filtrate is reduced in volume W by evaporation. The residue is purified by adding iron and rare earth carriers and precipitating them as hydroxides. After a second strontium nitrate precipitation from l
nitric acid, the nitrates are dissolved in acid again with yttrium carrier and stored for E ingrowth. The yttrium is precipitated as hydroxide and separated from strontium with the strontium being in the supemate. Each fraction is precipitated separately as an oxalate (yttrium) and carbonate (strontium) and collected on a No. 42 (2.4 cm)
Whatman filter. The filters are counted using a low background proportional counter and the Strontium-90 activity is calculated from the oxalate data. The Strontium-89 activity is determined by subtracting the calculated Strontium-90 activity from the measured gross strontium activity caiculated from the carbonate.
2.4.1.4 lodine-131 I 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 g interval between sample collection and counting is then made.
5 2.4.2 Direct Radiation Direct radiation measurements are taken by UEC using Thermoluminescent Dosimeters I (TLD's). The UEC program employs the Panasonic Model UD-814 TLD and Model l
UD-710A automatic dosimeter reader. Each dosimeter consists of three elements of l CaSO4: Tm and one element of Li2B407:Cu. The dosimeters are sealed in a moisture i
I 18 -
l g
l
resistant plastic bag and placed inside a polypropylene mesh cylindrical hoider in the environment. After exposure in the environment the dosimeters are read and the exposure for the time period is determined from the CaSO4:Tm elements. The Li 2B407:Cu element is not used to determine exposure during routine operations.
2.4.3 Vegetation 2.4.3.1 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, multi-channel analyzer. A peak 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.
2.4.3.2 Gross Aloha and Gross Beta A suitable aliquot of ashed sample is transferred to a two-inch ringed planchet. The planchet is counted for gross alpha and gross beta activity using a proportional counter.
2.4.3 3 Gamma Spectrometry A suitable aliquot of wet (as received) sample is placed into a standrJ calibrated container and specific nuclides, if present, identified and quantified using a germanium detector coupled to a computer based, multi-channel analyzer.
2.4.4 Milk 2.4.4.1 Iodine-131 Two liters of milk containing standardized Iodine carrier are 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 I2and the elemental iodine extracted into CCl4, back.-extracted into water, then precipitated as palladium iodide.
The precipitate is counted for I-131 using a proportional counter.
2.4.4.2 St.rontium-89 and Strontium-90 One liter of milk containing strontium and barium carriers is passed through a cation-exchange resin column.
Strontium, barium and calcium are eluted from the cation-exchange resin with sodium chloride solution. Following dilution of the eluate, the alkaline earths are precipitated as carbonates. The carbonates are then converted to nitrates, and strontium ani t,arium nitrate are precipitated. The nitrate precipitate is dissolved, and barium is precipitated as I
chromate, purified as chloride, and counted for Barium-140 (if required). From the supernate, strontium is precipitated as nitrate, dissolved in water and reprecipitated as strontium nitrate. The nitrate is converted to carbonate, which is filtered, weighted to g determine strontium caicier recovery, and counted for " total radiostrontium" using a E proportional counter.
After counting total radiostrontium the second time after six to eight days, Sr-89 concentrations are calculated. If the Sr-89 concentration shows a positive result, the precipitate is dissolved, yttrium carrier added and the sample is stored for six to eight days to allow for additional yttrium ingrowth. Yttrium is separated from strontium, precipitated as yttrium oxalate and counted to determine Sr-90 concentrations.
The concentration of Sr-89 is calculated as the difference between the activity for " total radiostrontium" and the activity due to Sr-90.
2.4.4.3 Gamma Spectrometry 3.5 liters or 500 ml aliquot of milk is placed in a standard counting container and specific nuclides identified and quantified using a germanium detector coupled to a computer i
based, multi-channel analyzer.
2.4.4.4 Elemental Calcium Strontium, barium, and calcium are adsorbed on cation-exchange resin, then eluted with l sodium chloride solution. An aliquot of the eluate is diluted to reduce the high sodium ion concentration. From this diluted aliquot, calcium oxalate is precipitated, dissolved in dilute hydrochloric acid, and the oxalate is titrated with standardized potassium permanganate.
2.4.5 Surface and Ground Water 2.4.5.1 Tritiu_n)
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.
2.4.5.2 Gamma Spectrometry 3.5 liters or 500 ml aliquot of water is placed in a standard counting container and specific nuclides identified and quantified using the Method described in Section 2.4.1.2.
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2.4.6 Fish 2.4.6.1 Gross Aloha and Gross Beta A suitable aliquot of ashed fish sample is transferred to a two-inch ringed planchet. The planchet is counted for gross alpha and gross beta activity using a proportional counter.
[ 2.4.6.2 Strontium-89 and Strontium-90 A suitable aliquot of ashed sample transferred to a 250 ml beaker and strontium-yttrium f carriers added. The sample is leached in nitric acid and filtered. After filtration, filtrate is reduced in volume by evaporation. The residue is purified by adding iron and rare earth carriers and precipitating them as hydroxides. After a second strontium nitrate f precipitation from nitric acid, the nitrates are dissolved in acid again with yttrium carrier and stored for ingrowth of Yttrium-90. The yttrium is precipitated as hydroxide and 4 separated from strontium with the strontium being in the supernate. Each fraction is 1-precipitated separately as an oxalate (yttrium) and carbonate (strontium) and collected on No. 42 (2.4 cm) Whatman filter for counting using a low background proportional
{ counter, The Strontium-90 concentration is determined from the yttrium oxalate I
counting results and the Strontium-89 concentration is calculated as the difference between the strontium carbonate activity and the activity due to Strontium-90.
2.4.6.3 Gamma Spectrometry
[ A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides identified and quantified using a germanium detector coupled to a computer based, multi-channel analyzer.
( 2.4.7 Bottom and Shoreline Sediment f 2.4.7.1 Gamma Spectrometry A suitable aliquot ofprepared sample is placed in a standard calibrated container and b specific nuclides identified and quantified using a germanium detector coupled to a computer based, multi-channel analyzer.
2.4.8 .S. oil and Wetlands 2.4.8.1 Gross Aloha and Gross Beta A suitable aliquot of dried sample is transferred to a two-inch ringed planchet. The planchet is counted for gross alpha and gross beta activity using a proportional counter.
9
I 2.4.8.2 Gamma Spectrometry A suitable aliquot of prepared sample is placed in a standard calibrated container and specific nuclides identified and quantified using a germanium detector coupled to a computer based, multi-channel analyzer.
2.5 Program Modifications During 1997 two modifications were made to the monitoring program. The first modification was the addition of vegetation sampling location V10. l The second change was the replacement of milk sample location M7 with new location M8. This change was required since the milk supplier mose his operations from Tebbetts, MO t 3 New Bloomfield, MO.
3.0 ISOTOPIC DETECTION LIMITS AND ACTIVITY DETERMINATIONS I
A discussion of the calculations used in determining detection limits and activity by the contractor laboratory is found in Appendix C.
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.
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EI 4.0 OUALITY CONTROL PROGRAM EI To insure the validity of the data, the contractor laboratory maintains a quality control (QC) program which employs quality control checks, with documentation, of the analytical phase ofits environmental monitoring studies. The program is defmed in the Quality Control Program, and procedures are specified in the QC Procedures Manual.
The QC Program includes laboratory procedures 6%ned to prevent cross-contamination and ensure accuracy and preci ' # analyses. The quality control checks include blind samples, duplicate samples, and ,ed samples as necessary to verify laboratory analysis activities are being maintained at a high level of accuracy.
The Quality Control Program is in compliance with USNRC Regulatory Guide 4.15 and includes appropriate control charts with specified acceptance levels for instrument l source checks, background, efficiency, etc. for counting equipment.
The laboratory participates in the USEPA Interlaboratory Comparison Program l (crosscheck program) by analyzing radioactive samples distributed for that purpose.
The results of the crosscheck program are presented in Appendix B.
l 5.0 DATA INTERPRETATIONS In interpreting the data, effects due to the Callaway Plant must be distinguished from those due to other sources.
One interpretation method td in assessment of those effects is the indicator-control concept used in the design of the nonitoring program. Most sample types are collected at both indicator louumas (areas potentially affected by plant operations) and control locations (areas not affected by plant discharge). A possible plant effect vould be indicated if the radiation level at an indicator location was significantly larger than at the controllocation. The difference would have to be creater than what could be accounted for by typical fluctuations in radiation levels arising from other sources.
l An additional interpretation method involves analysis for specific radionuclides present in environmental samples collected around the plant site. For certain isotopes it can be determined if the activity is the result of weapons testing or plant operations because of the differen: characteristic proportions in which these isotopes appear in the fission product mix produced by a nuclear reactor and that produced by a nuclear detonation.
Other means of distinguishing sources of environmental radiation that are also employed g in interpretation of the data. Current radiation levels can be compared with B preoperationallevels. Results can be related to those obtained in other parts of the country. Finally, results can be related to events known to have caused elevated levels of radiation in the environment.
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6.0 RESULTS AND DISCliSSION Analytical results for the reporting period January to December 1996 are presented in summary form in Appendix D. For each type of analysis of each sampled medium, this table shows the annual mean and range for all indicator locations and for all control locations. Resuhs for the location with the highest annual mean are also given.
( Discussion of the resulti is divided into four pathways; waterborne, airborne, ingestion, and direct radiation. The individual samples and analyses within each category provides an adequa'e means of est; mating ndiation dose to individuals from principal pathways.
Data for individe.al sampks are presented in tabular form in Appendix E.
6.1 Waterborne Pathway The water pathway of exposure from Callaway Plant was evaluated by analyzing surface water, well water, bottom sediment, shoreline sediment and wetlands.
Surface Water Analysis of Tritium in surface water showed detectable activity in two of the samples collected at location SO2 with a mean Tritium concentration of 192 pCi/ liter. In addition, the sample collected at control location sol in December showed a positive Tritium concentration of 713 pCi/1. The cause of this elevated sample was not determined, however, the following monthly sample showed Tritium results less than the detection limit. The LLDs for other samples ranged from 151 to 180 pCi/l.
No gamma emitting nuclides were detected in any surface water samples.
While the presence of detectable activity at the indicator location could indicate an in 'aence from Callaway Plant, the levels measured were barely above detectable and were within the range of preoperational background data collected.
Ground Water in ground water samples, tritium results for all twelve samples were below the detection limit which ranged from 153 to 176 pCi/1.
No gamma emitting nuclides were detected in any ground water sample.
f There was no indicst.on of plant operational effects on ground water.
l i l
Bottom Sediment Analysis of bottom sediment collected in April and October showed positive Cesium-137 activity in one indicator and one control sample with concentrations of 34 pCi/kg and 41 pCi/kg, respectively. There were no other gamma emitting nuclide detected in bottom sediment samples. The presence of Cesium-137 activity in bottom sediment exhibits a long term residual effect of previous atmospheric nuclear tests and not an effect from plant operations.
Shoreline Sediment Shoreline Sediment samples were collected in April and October,1997 and analyzed for gamma emitting isotopes. Cesium-137 activity was observed in three of the four shoreline sediment samples with results ranging from 33 to 142 pCi/kg. The average activity for the indicator location was 33 pCi/kg and for the control location was 88 pCi/kg. There were no other gamma emitting nuclides detected in shoreline sediment samples. Similar levels of Cesium-137 activity due to fallout from atmospheric nuclear testing were observed in 1984,1985, and 1987 thru 1996.
Wetlands Analysis for alpha emitters showed detectable activity in all samples, with results ranging from 11360 to 18196 pCi/kg. The average sample concentration at the indicator location was 13782 pCi/kg and at the control location was 13428 pCi/kg.
The average gross beta activity in all wetlands samples ranged from 20428 to 39860 pCi/kg. The average activity at the control location was 23027 pCi/kg and at the I
indicator location was 27064 pCi/kg.
Potassium-40 and Cesium-137 were the only gamma emitting isotopes detected.
Potassium-40 was detected in all samples with results ranging from 11269 to 17962 pCi/kg. The average concentration for indicator locations was 12570 pCi/kg and for the control location was 17962 pCi/kg.
Three wetlands samples showed positive Cesium-137 activity with results ranging from 87 to 332 pCi/kg. The average concentration for indicator locations was 156 pCi/kg and for the control locations was 332 pCi/kg.
The wetland sample results showed no radiological effects from plant operation on the wetlands. Gross alpha and gross beta activity can be attributed to naturally occurring isotopes (e.g. Potassium-40). Cesium-137 activity present can be attributed to g worldwide fallout from atmospheric nuclear testing. E 6.2 Airborne Pathway Airborne pathways of exposure from Callaway Plant were evaluated by analyzing I
samples of air particulate and air iodine cartridges.
I
Airborne Particulate Gross beta activity in airborne particulate ranged from 0.011 to 0.066 pCi/m3 in all samples. The average gross beta activity at alllocations was 0.025 pCi/m3. During 1997 there were 19 weekly samples with gross beta activity greater than baseline activity action level. Gamma spectral analysis of the individual samples did not detect any gam.ma emitting isotopes of plant origin.
Gamma spectral analysis of quarterly composites of air particulate filters showed Beryllium-7 in all twenty samples. The average Beryllium-7 activity for all sample locations was 0.095 pCi/m3. The presence of Beryllium-7 can be attributed to cosmic ray activity. No gamma emitting isotopes of plant origin were detected in the quarterly composities.
Strontium-89 and Strontium-90 analyses performed on quarterly composites indicated no activity above detection limits.
Levels and distribution of activity in air particulate samples are similar to previously accumulated data and indicate no influence from plant operation.
Airborne Iodine Airborne Iodine-131 results were below the detection limit of 0.07 pCi/m3 in all samples. Thus, there was no indication of any plant operational etTect on this sample media.
6.3 Ingestion Pathway Potential ingestion pathways ofexposure for Callaway Plant were evaluated by analyzing samples of milk, fish, vegetation, and soil.
Milk A total of forty-nine analyses for Iodine-131 in milk were performed during 1997. All samples were below the LLD which ranged from 0.2 to 0.5 pCi/l.
1 Naturally occurring Potassium-40 was the only gamma emitting isotope found in milk samples. Concentrations ranged from 1010 to 2150 pCi/1. The average concentration for indicator locations was 1502 pCi/l and for control locations was 1333 pCill.
Strontium-89 results were below the LLD for all samples. The LLDs ranged from 0.6 to 1.8 pCi/l Strontium-90 was detected in forty-eight of the milk samples averaging 3.5 pCi/l for indicator locations and 1.5 pCi/l for control locations. The range of detectable results was 0.8 to 6.0 pCi/1.
n __
I Calcium was analyzed in all milk samples with levels ranging from 0.72 to 1.20 gm/l.
In summary, the milk data for 1997 show no radiological efTects from plant operation. g The presence of Strontium-90 in milk samples exhibits a long range residual efTect of E previous atmospheric nuclear tests.
Ei.s.h The types of fish species collected during 1997 were: River Carpsucker, Channel Catfish, Blue Sucker, Smallmouth BufTalo, Freshwater Drum and Carp.
All fish samples indicated positive Potassium-40 activity with levels ranging from 2256 pCi/kg-wet to 3344 pCi/kg-wet. The mean Potassium-40 activity was 2796 pCi/kg-wet for the indicator location and 2927 pCi/kg-wet for the control location.
No other gamma emitting isotopes of plant origin were detected in the fish samples.
l No Strontium-89 or Strontium-90 activity was detected in fish samples collected during 1997.
Levels of activity detected in fish indicates no impact from plant operations.
_ Vegetation Vegetation samples collected during 1997 consisted of mustard greens, turnip greens, lettuce, cabbage, and spinach.
Gross alpha activity was observed in twenty-two of the twenty-seven vegetation samples with results ranging from 79 to 451 pCi/kg-wet. The average activity for indicator locations was 229 pCi/kg-wet and for the control location was 173 pCi/kg-wet.
Gross beta activity was detected in all vegetation samples with results ranging from 2405 to 9415 pCi/kg-wet. The average gross beta activity for indicator locations was 5013 pCi/kg-wet and for the control location was 4164 pCi/kg-wet.
Iodine-131 activity was below the detection limit in all samples.
Naturally occurring Potassium-40 was found in all vegetation samples. Concentrations ranged from 2831 to 8809 pCi/kg-wet and averaged 4549 and 4731 pCi/kg-wet at indicator and control locations respectively. All other gamma emitting isotopes were below their detection limit.
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Levels of activity detected in vegetation samples were consistent with previously accumulated data and no plant operational effects were indicated.
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Soil
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Gross alpha results ranged from 11177 to 20322 pCi/kg for all eleven samples. The mean activity for indicator locations was 15876 pCi/kg and for the control location was
( 12874 pCi/kg. Gross beta activity was detected in all eleven samples ranging from 21202 to 41742 pCi/kg. The average gross beta activity was 25349 and 26752 pCi'kg at indicator and control locations respectively.
Gamma spectral analysis of the soil samples showed Cesium-137 and Potassium-40 in all samples. Cesium-137 results ranged from 332 to 1523 pCi/kg. The average
( concentration was 909 pCi/kg at the indicator locations and 332 pCi/kg at the control location. Potassium-40 results ranged from 10254 to 15342 pCi/kg. The average concentration for indicator locations was 11779 pCi/kg and for the control location was 15342 pCi/kg.
The gross alpha and gross beta activity can be attributed to naturally occurring isotopes
[ (e.g. Potassium-40). Cesium-137 activity present can be at".ibuted to worldwide fallout from atmospheric nuclear testing. The level of activity and distribution pattern is similar to previously accumulated data and indicates no ir. fluence from the olant.
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6.4 Direct Radiation
[
All TLD results presented in this report have been normalized to a 90-day quaner (standard quarter) to eliminate apparent differences in data caused by variations in length
( of exposure period.
The range of quarterly TLD results for indicator locations was 12.1 to 19.5 mrem / standard
( quarter and 11.3 to 18.6 mrem / standard quarter for control locations. Quarterly TLD analyses yielded an average exposure level of 16.9 mrem / standard quarter at all indicator '
locations and an average exposure level of 14.9 mrem / standard quarter at all control
[ !ocations. .
The annual TLD results ranged from i1.1 to 18.0 mrem / standard quarter. The average exposure level at the indicator and control locations were 16.1 mrem / standard quarter and 14.4 mrem / standard quarter, respectively.
There was no significant difference between indicator and control locations for the TLD's during 1997. The exposure levels were consistent with previously accumulated data and no plant operational effects were indicated.
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APPENDIX A 1997 LAND USE CENSUS
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i UNION ELECTRIC COMPANY CALLAWAY PLANT I 1997 LAND USE CENSUS I
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l Preparea by f~ r 7443- -
1 Approved by s E
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1.0 INTRODUCTION
In accordance with Technical Specification 6.8.4.f and Final Safety Analysis Report (FSAR)
Chapter 16.11.4.2, a Land Use Census is performed annually during the growing season within a 5 mile radius of Callaway Plant. The Land Use E Census is conducted to identify the location of E the nearest resident, the nearest milking animal, and the nearest garden of greater than 50 m2 producing broad leaf vegetation in each of the 16 meteorological sectors. The results of this census are used to identify changes in the use of the area at and beyond the SITE BOUNDARY that would require modification to the existing monitoring programs presented in APA-ZZ-01003, Offsite Dose Calculation Manual (ODCM).
The 1997 Land Use Census was conducted during August and September by the Union Electric Real Estate Department. Information was collected by contacting families identified in the 1996 Land Use Census and field surveys conducted within a 5 mile radius of the plant site noting the location of the above mentioned items.
2.0 RESULTS Results of the Land Use Census are presented in Tables 1 through 3 and discussed below. The tables include radial direction and distance ttuu the Callaway Plant for each location. The radial direction is one of the 16 different compass points. Mileage was estimated from map position for each location.
Changes identified in this year's Land Use Census a did not require modification to the monitoring g programs used to evaluated dose to the public from principle pathways of exposure.
2.1 Nearest Residen.l Table 1 presents the location of the nearest resident to Callaway Plant in each of the 16 meteorological sectors. There were two changes noted in the 1997 census. None of the changes observed required a change to the location of the nearest resident yielding the highest calculated dose commitment.
il 1
1 A-2
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2.2' Milkina Animals Table-2 presents the location of the nearest milking animals identified within a 5 mile radius of Callaway Plant. All milking animals, whose milk is not used for human consumption and/or not yielding milk, are shown on Table 2. There were no_ location changes observed during this years census. Several changes were noted this year in the' number and types-of milking animals observed.
The changes identified are normal for a rural area where milking animals are bought and sold on a routine basis. None of the changes noted resulted in modification to the current milk monitoring program.
2.3 Vecetable Gardens Locations of the nearest vegetable garden greater than 50 m2 producing broad leaf vegetation are presented in Table 3. Two changes in the location of the nearest garden were observed during this year's census. None of the changes identified resulted in changes to the current vegetable sampling locations.
A-3
1 TABLE 1 NEAREST RESIDENCE WITHIN FIVE MILES OF THE CALLAWAY PLANT 1997 I{li Meteorological Radial I
Sector Mileace g i N 1.8 gl NNE 1.6 NE 2.2 ENE 3.8 E 3.4 j l
S 2.6 SS. 2.
l SW 2.6 WSW 1.2 W 1.4 l NWN 2.0 NW 2.1 l NNW 1.9 Il I
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TABLE 2 NEAREST MILKING ANIMALS WITHIN FIVE MILES OF THE CALLAWAY PLANT
{ 1997 Meteorological Radial Number Number
[ Sector Mileace of Cows of Goats SSF 2.6 1 5 SW 2.6 1 0
( . NW 2.7' 2 NONE NW 3.1 NONE 4
(
Milk producing animals whose milk is not used for
( human consumption and/or milk producing animals not yielding milk.
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TABLE 3 NEAREST GARDEN WITHIN FIVE MILES OF THE CALLAWAY PLANT 1997 Meteorological Radial Sector Mileace N 1.8*
NNE 1.6 NE 2.2 ENE 3.8 E 3.6 ESE 2.3 SE 2.4 SSE 2.6 S 2.6* '
WSW 1.2*
W 3.5 NWN 2.O NW 3.1 NNW 1.9*
l In this sector there were no gardens noted within five miles producing " broad leaf vegetation."
The distance noced is the distance to the nearest residence.
A-6
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I l APPENDIX B EPA CROSS-CHECK RES'ULTS 1997 g
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TABLE B1 EPA INTERCONPARISON STUDY RESULTS 1997 SANPLE STUDY TINL RESULTS EPA RESULTS' TYPE DATE ANALYSIS i 2o5 1s. N-1 CONTROL LINITS UNITS WATER JAN 1997 SR-89 9.7 i 0.6 12.0 t 5.0 3.3 - 20.7 pCi/1 SR-90 24.0 i 1.0 25.0 1 5.0 16.3 - 33.7 pCi/1 WATER- JAN 1997 GR. ALPHA 10.0 1 1.4 5.2 i 5.0 0.0 - 13.9 pC1/1 GR. BETA 15.8 i 2.0 14.7 i 5.0 6.0 - 23.4 pC1/1 WATER FEB 1997 I-131 86.0 t 2.0 86.0 t 9.0 70.4 - 101.6 pCi/1 I-131 79.3 1 2.0 86.0 i 9.0 70.4 - 101.6 pCi/1 WATER FEB 1997 RA-226 6.7 2 0.2 5.9 i 0.9 4.3 - 7.5 pCi/1 RA-228 8.4 i 1.1 8.2 t 2.1 4.6 - 11.8 pCi/1 URANION 26.5 t 1.3 27.0 t 3.0 21.8 - 32.3 pCi/1 WATER NAR 1997 H-3 7594.0 t 279.7 7900.0 t 790.0 6529.4 - 9270.6 pCi/1 WATER APR 1997 GR. ALPHA 44.3 i 1.6 48.0 i 12.0 27.2 - 68.8 pCi/1 RA-226 10.7 1 0.9 13.0 t 2.0 9.5 - 16.5 pCi/1 RA-228 4.7 t 0.4 3.1
- 0.8 1.7 - 4.5 pCi/l c URANIUN 26.8 i 0.3 24.0 i 3.0 18.8 - 29.2 pCi/1 WATER APR 1997 C0-60 21.7 i 0.6 21.0 t 5.0 12.3 - 29.7 pCi/1 CS-134 27.3 1 1.2 31.0 t 5.0 22.3 - 39.7 pCi/1 CS-137 21.7
- 1.5 22.0 i 5.0 13.3 - 30.7 pCi/1 GR. BETA 98.2 1 2.1 102.1 i 15.3 75.6 - 128.6 pCi/1 SR-89 21.3 i 1.2 24.0 i 5.0 15.3 - 32.7 pC1/1 SR-90 12.7 i 0.6 13.0 t 5.0 4.3 - 21.7 pC1/1 WATER JUN 1997 BA-133 24.7 i 1.2 25.0 t 5.0 16.3 - 33.7 pCi/1 C0-60 18.7 1 0.6 18.0 i 5.0 9.3 - 26.7 pC1/1 CS-134 19.7 i 0.6 22.0 t 5.0 13.3 - 30.7 pCi/1 CS-137 52.0 i 2.0 49.0 1 5.0 40.3 - 57.7 pCi/1 ZN-65 101.0 t 2.0 100.0 t 10.0 82.7 - 117.3 pCi/1
-WATER JUN 1997 RA-226 2.7 2 0.1 3.0 t 0.5 2.1 - 3.9 pCi/1 RA-228 2.3 i 0.3 3.1 1 0.8 1.7 - 4.5 pC1/1 URANIUN 38.1 i 1.0 40.3 i 4.0 33.4 - 47.2 pCi/1 WATER -JUL 1997 GR. ALPHA 3.1 i 0.3 3.1 1 5.0 0.0 - 11.8 pCi/1 GR. BETA 13.9 i 0.2 15.1 i 5.0 6.4 - 23.8 pCi/1 I-B-1
TABLE B1 (Cont.)
EPA INTERCOMPARISON STUDY RESULTS 1997 SAMPLE STUDY TIML RESULTS EPA RESULTS' TYPE DATE ANALYSIS i 2o8 1s. N 1 CONTROL LIMITS UNITS WATER JUL 1997 SR-89 37.7 i 3.2 44.0 t 5.0 35.3 - 52.7 pCi/1 3 SR-90 16.0 i 1.0 16.0 t 5.0 7.3 - 24.7 pCi/l B WATER JUL 1997 I-131 10.7 i 1.2 10.0 i 6.0 0.0 - 20.4 pCi/1 WATER AUG 1997 H-3 11349 1 241.4 11010 i 1101 9099.8 - 12920 pC1/1 WATER SEP 1997 RA-226 20.0 i 0.8 20.0 1 3.0 14.8 - 25.2 pCi/1 RA-228 7.0 i 0.1 8.0 i 2.0 4.5 - 11.5 pCi/1 URANIUM 5.0 i 0.1 5.1 1 3.0 0.0 - 10.3 pC1/1 WATER NOV 1997 BA-133 97.3 i 5.0 99.0 i 10.0 81.7 - 116.3 pCi/1 C0-60 28.3 i 1.7 27.0 i 5.0 18.3 - 35.7 pCi/1 CS-134 9.7 i 1.0 10.0 i 5.0 1.3 - 18.7 pCi/1 CS-137 78.0 i 3.5 74.0 i 5.0 65.3 - 82.7 pCi/1 ZN-65 76.7 i 2.1 75.0 i 8.0 61.1 - 88.9 pCi/1 a Unless otherwise indicated, the TIML results are given as the mean i 2 standard deviations for three determinations.
b EPA results are presented as the known value and expected laboratory precision (1s, 1 determination) and control limits as defined by EPA.
c See Addendum to appendix B for explanation of the reason why the sample results were outside the control limits specified by EPA.
I I
I l
I B-2
ADDENDUM TO APPENDIX B 1997 SAMPLE STUDY TYPE DATE ANALYSIS EXPLANATION WATER APR 1997 RA-228 All raw data and calculations were reviewed for errors. The analysis was repeated with the technician observed by the lab I supervisior; the results of the reanalysis 3.110.5 pCi/1.
The suspected cause of the I higher results was the lower than expected recovery of Ba tracer. No furter action is planned at this time.
I I
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APPENDIX C ISOTOPIC DETECTION LIMITS AND ACTIVITY DETERMINATIONS P
isotopic Detection Limits and Activity Determination Making a reasonable estimate of the limits of detection for a counting procedure or a radiochemical method is usually complicated by the presence of significant background.
It must be considered that the background is not a fixed value but a series of replicates normally distributed. The desired net activity is thus the difference between the gross sample activity and background activity distributions.
l l
The interpretation of this difference becomes a problem if the two distributions intersect as indicated in the diagram.
BACKGROUND GROSS
=.
If a suflicient number of replicate analyses are run, it is to be expected that results would fall in a normal Gaussian distribution. In routine analysis such replication is not carried out. Standard statistics allow an estimate of the probability of any particular deviation from the mean value. It is common practice to report the mean one or two standard deviations as the final result.
Analytical detection limits are governed by a number of factors including:
- 1. Sample Size
- 2. Counting Efliciency The fundamental quality in the measurement of a radioactive substance is the number of disintegrations per unit time. As with most physical measurements in analytical chemistry, it is seldom possible to make an absolute measurement of the disintegrations rate, but rather, it is necessary to compare the sample with one or more standards. The standards determine the counter efliciency which may then be used to convert sample counts per minute (cpm) to disintegrations per minute (dpm).
I C-1 i
I
- 3. Backcround Count Rate Any counter will show a certain counting rate without a sample in position. This g background counting rate comes from several sources: 1) natural environmental radiation E from the surroundings,2) cosmic radiation, and 3) the natural radioactivity in the counter materialitself. The background counting rate will depend on the amount of these types of radiation and sensitivity of the counter to radiation.
- 4. Background and Sample Count Time The amount of time devoted to counting background depends on the level of the activity being measured. In general, with low level samples, this time should be about equal to that devoted to counting a sample.
- 5. Time Interval Between Sample Collection and Counting Decay measurements are useful in identifying certain short-lived isotopes. This l disintegration constant is one of the basic characteristics of a specific radionuclide and is readily determined, if the half-life is sufficiently short.
- 6. Chemical Recovery of the Analytical Procedure Most radiochemical analyses are carried out in such a way that losses occur during the g separations. These losses occur due to a large number of contaminants that may be E present and interfere during chemical separations. Thus it is necessary to include a technique for estimating these losses in the development of the analytical procedure.
The following method was used to determine lower limit of detection (LLD) as 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, for purposes of this guide, 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.
l For a particular measurement system (which may include radiochemical separation):
ss LLD =
E
- V
- 2.22
- Y
- exp(-Mt)
I I
C-2 I
L
[
Where:
LLD =
" A priori lower limit of detection as defmed above (pCi per unit mass or volume).
b =
-sb Standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (counts per minute).
[
E =
Counting efliciency (counts per disintegration).
( V =
Sample size (units of mass or volume).
2.22 =
Number of disintegrations per minute per picocurie.
Y =
Fractional radiochemical yield (when applicable).
A =
Radioactive decay constant for the particular radioisotope.
At =
Elapsed time between sample collection (or end of the sample collection period) and time of counting.
{ The value of sb used in the calculation of the LLD for a particular measurement system is based on the actual observed variance of the background count rate, or, the counting rate of the blank sample, (as appropriate), rather than an unverified theoretically predicated variance.
[
In calculating the LLD for a radionuclide determined by gamma-ray spectrometry, the background includes the typical contributions of other nuclides normally present in the samples.
Single Measurements Each single measurement is reported as follows:
x s where: x = Value of the measurement; s = 2c counting uncenainty (corresponding to the 95% confidence level).
{ In cases where the activity is found to be below the lower limit of detection L it is reported as
<L where L = the lower limit ofdetection based on 4.66o uncertainty for a background sample.
r L C-3
)
l f
)
Duplicate Analysis
- 1. Individual results: xi s x2 i s2 Reported result: x s where X = (% )(X + X 2) s = (% ))(s[ + s!)
- 2. Individual results: <L i I
<L 2 Beported results: <L where L = lower of L, and L2 I
- 3. Individual results; x
<L s
l Reported results: x i s ifx 21;
< L otherwise Computation of Average and Standard Deviations Average and standard deviations listed in the tables are computed from all individual measurements over the period averaged; for example, an annual standard deviation would not be the average of quarterly standard deviations. The average x and standard deviation (s) of a set of n numbers xi, x2 x nare defined as follows:
x = l Ex s= I(x-xi)' E
,3 g If all values in the averaging group are less than the lower limit of detection, the highest LLD is reported.
If all but one of the values are less than the lower limit of detection, the single value x and associated two sigma error is reported. l C-4
I
[:
In rounding off, the following rules are followed:
1.
If the figure following those to be retained is less than 5, the figure is dropped, and the retained figures are unchanged. As an example,11.443 is rounded off to I1.44,
(.
- 2. If the figure following those to be retained is greater than 5, the figure is dropped
{ and the last retained figure is raised by' t. As an example,11.446 is rounded off to 11.45.
[L 3. If the figure following those to be retained is 5, and if there are not figures other than zeros beyond the fiwe, the figure 5 is dropped, and the last-place figure retained is increased by one ifit is an odd. number or unchanged if an even number.
[: .. As an example,11.435 is rounded off to 11.44, while 11.425 is rounded off to
.I1.42.
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APPENDIX D RADIOLOGICAL ENVIRONMENTAL I MONITORING PROGRAM ANNUAL
SUMMARY
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1 APPENDIX E i l
INDIVIDUAL SAMPLE RESULTS l l
DATA TABLES 1997 l
l l
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APPENDLX E LIST OF TABLES NO. TITLE PAGE El Airborne Iodine-131 and Gross Beta in Air Particulate Filter E-2 E2 Airborne Particulate, Quarterly Composites E-4 E3 Milk E-6 E4 Vegetation E-15 E5 Soil E-20 B E6 Wetlands Soil Samples E-22 E7 Surface Water E-23 E8 Ground Water I E9 Bottom Sediment E-29 E-31 E10 Shoreline Sediment E-32 El1 Fish E-33 E12 Thermoluminescent Dosimetry E-35 i
E
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I l
I Defmition of terms used in the data tables are as follows:
l Wet Weight A reportii.g unit used with organic tissue samples such as l vegetation and animal samples in which the amount of sample is l taken to be the weight as received from the field with no moisture j removed.
i l
l Dnf Weight A reporting unit used for soil and sediment in which the amount of sample is taken to be the weight of the sample after removal of moisture by drying in an oven.
l i
pCi/m3 A reporting unit used with air particulate and radiciodine data which refers to the radioactivity content expressed in picocuries per cubic meter of air passed through the filter and/or the charcoal trap.
- Note the volume is not corrected to sendard conditions.
Gamma Emitters Samples were analyzed by high resolution (GeLi) gamma or spectrometry. The resulting spectrum is analyzed by a computer Gamma Isotopic program which scans from about 50 to 2000 kev and lists the energy peaks of any nuclides present in concentrations exceeding l the sensitivity limits set for that particular sample.
Error Terms Figures following " " are error terms based on counting uncertainties at the 95 percent confidence level. Values r, receded by the "<" symbol were below the stated concentration at the 99 percent confidence level.
Sensitivity In general, all analyses meet the sensitivity requirements of the program as given in Table III. For the few samples that do not l (because ofinadequate sample quantities, analytical interference, etc.) the sensitivity actually obtained in the analysis is given.
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0 0 0 0 0 0 .0. . n n -> m W
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.O O O O O ON NO N ON N.ON NON ON NO N ON NO N .NO N ON NO NON O O .O . W N N N N N O .O O. O O a W m C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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A A A A A A A A A A C 0 0 0 0 0 0 0 0 0 0. 0 e0 0 0 e0 0 0 0 0 0 0 0 0 0 0 A A A A A A A A A A A A A A A A %
e . =.
0 0 0 0 0 0 0 0 0 0 0 0 0 .0 0 0 N N N N N N N N N N N N N N N N N 5 N N N N N N
.0 0 0 0 0 0 0 0 0 0 N N m
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O C N N C @ W N N W N W W N W N N N N N W N N G N N Z O
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O O O O O O O O O O O O O O O O O O O O O O O O O O W N sW W sW N W W W W W W W W W W W W W W W W W N A A A A A A A A A A A A A A A A A A A A A A A A A A
.C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 . =.
C .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .0 0 0 0 0 0 .0 a N N N N N N N N N N N N N N N N N N N N N N N N N N W C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
- E-3 I
L_ . _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
TABLE E2 3
AIRBORNE PARTICULATE - QUARTERLY COMPOSITES (pCi/m )
1997 f
I JANUARY - MARCH 1997 CA-APT-Al CA-APT-A7 CA-APT-A8 CA-APT-A9 CA-APT-B3 Volume (Cubic Feet): 5990 5989 5998 5969 5985 Analysis
$r-89 <0.0004 <0.0005 <0.0005 <0.0004 <0.0005 Sr-90 <0.0002 <0.0003 <0.0002 <0.0003 <0.0003 Be-7 0.0600 t 0.0110 0.0900 0.0080 0.0910 t 0.0080 0.0910 t 0.0090 0.1000 t 0.0120 Co-58 <0.0005 <0.0005 <0.0003 <0.0005 <0.0003 Co-60 <0.0006 <0.0002 <0.0003 <0.0002 <0.0009 Zr-95 <0.0016 <0.0006 <0.0006 <0.0006 <0.0013 Cn-134 <0.0005 <0.0003 <0.0005 <0.0003 <0.0002 Cs-137 <0.0007 <0.0003 <0.0006 <0.0005 <0.0005 Ba-ta-140 <0.0006 <0.0004 <0.0003 <0.0005 <0.0005 Ce-144 <0.0036 <0.0013 <0.0026 <0.0018 <0.0035
) APRIL - JUNE 1997 CA-APT-Al CA-APT-A7 CA-APT-A8 CA-APT-A9 CA-APT-B3 q Volume (Cubic Feet): 5554 5564 5419 5565 5562 l Analysis
( Sr-89 <0.0005 <0.0005 <0.0005 <0.0006 <0.0012 Sr-90 <0.0003 <0.0003 <0.0003 <0.0003 <0,0006 Be-7 0.1000 t 0.0110 0.1300 t 0.0160 0.1100 t 0.0140 0.1100 0.0100 0.1100 t 0.0120 Co-58 <0.0003 <0.0005 <0.0004 <0.0006 <0.0005 Co-60 <0.0003 <0.0003 <0.0003 <0.0002 <0.0008
[ Zr-95 <0.0012 <0.0017 <0.0009 <0.0008 <0.0019 Cs-134 <0.0005 <0.0004 <0.0007 <0.0004 <0.0004 Cs-137 <0.0003 <0.0006 <0.0008 <0.0007 <0.0004 Ba-La-140 <0.0004 <0.0038 <0.0008 <0.0007 <0.0006 Ce-144 <0.0035 <0.0038 <0.0029 <0.0020 <0.0029 Notes:
E-4
I TABLE E2 (Cont.)
3 AIRBORNE PARTICULATE - QUARTERLY COMPOSITES (pCi/m )
1997 JULY - SEPTEMBER 1997 CA-APT-Al CA-APT-A7 CA-APT-A8 CA-APT-A9 CA-APT-83 Volume (Cubic Feet): 5566 5570 5274 5571 5562 Analysis Sr-89 <0.0008 <0.0004 <0.0005 <0.0004 <0.0005 Sr-90 <0.0006 <0.0003 <0.0004 <0.0003 <0.0004 B2-7 0.1100 2 0.0080 0.0910 2 0.0100 0.1100 2 0.0130 0.1100 2 0.0100 0.1200 0.0110 Co-58 <0.0003 <0.0001 <0.0004 <0.0007 <0.0007 Co-60 <0.0003 <0.0007 <0.0007 <0.0007 <0.0007 Zr-95 <0.0008 <0.0013 <0.0005 <0.0005 <0.00C7 Cs-134 <0.0004 <0.0003 <0.0006 <0.0002 <0.0003 Cs-137 <0.0004 <0.0002 <0.0003 <0.0005 <0.0003 Ba-La-140 <0.0008 <0.0005 <0.0005 <0.0005 <0.0008 Co-144 <0.0023 <0.0013 <0.0031 <0.0027 <0.0022 OCTOBER - DECEMBER 1997 CA-APT-Al CA-APT-A7 CA-APT-te CA-APT-A9 CA-APT-83 Volume (Cubic Feet): 5504 5509 5507 5507 5511 Analysis
$r-89 <0.0003 <0.0003 <0.0003 <0.0002 <0.0003 Sr-90 <0.0004 <0.0004 <0.0003 <0.0003 <0.0003 Be-7 0.0690 a 0.0080 0.0600 2 0.0130 0.0690 2 0.0080 0.0610 2 0.0120 0.0680 0.0080 l Co-58 <0.0002 <0.0004 <0.0002 <0.0004 <0.0005 I Co-60 <0.0003 <0.0003 <0.0005 <0.0002 <0.0004 I
Zr-95 <0.0010 <0.0016 <0.0007 <0.0019 <0.0006 Cs-134 <0.0006 <0.0008 <0.0003 <0.0005 <0.0005 Cs-137 <0.0004 <0.0007 <0.000, <0.0004 <0.0005 Ba-La-140 <0.0004 <0.0018 <0.0017 <0.0008 <0.0005 Ce-144 <0.0023 <0.0039 <0.0016 <0.0023 <0.0015 Notes:
E-5
l TABLE E3 MILK (pCi/kg dry) i ,,
1997 !
CA-MLK-M5B CA-MLK-M6 CA-MLK-M7 l Analysis (01/14/97) (01/14/97) (01/14/97)
I-131 ND <0.4 <0.3 Sr-89 ND <0.9 <0.8 Sr-90 ND 1.6 1 0.4 3.7 1 0.5 K-40 ND 1270.0 1 160.0 1290.0 1 160.0 Zn-65 hi) <7.2 <6.1 Cs-134 ND <3.3 <6.4 Cs-137 ND <6.1 <6.3 Ba-La-140 ND <2.4 <3.1 f
'~
Ca (g/1) ND 0.95 0.94 .,
CA-MLK-M5B CA-MLK-M6 CA-MLK-M7 Analysis (02/11/97) (02/11/97) (02/11/97)
I-131 ND <0.2 <0.5 Sr-89 ND <0.7 <0.8 Sr-90 ND 2.4 1 0.5 1.5 1 0.4 K-40 ND 1250.0 i 150.0 1310.0 1 150.0 Zn-65 ND <12.1 <7.9 Cs-134 ND <3.2 <6.3 Cs-137 ND <6.9 <6.8 Ba-La-140 ND <2.5 <7.5 f Ca (g/1) ND 0.85 0.94 Notes:
ND = No Data. See section 2.3 for explanation. f E-6
l 11 TABLE E3 (Cont.)
MILK (pCi/kg dry)
~
1997 CA-MLK-M5B CA-MLK-M6 CA-MLK-M7 Analysis (03/11/97) (03/11/97) (03/11/97)
I-131 ND <0.4 <0.4 l
Sr-89 ND <1.0 <0.9 Sr-90 ND 3.5 1 0.6 1.3 1 0.3 i
K-40 ND 1350.0 1 110.0 1310.0 1 170.0 Zn-65 ND <7.6 <12.1 Cs-134 ND <4.7 <4.6 Cs-137 ND <4.3 <6.7 Ba-La-140 ND <1.6 <2.8 Ca (g/1) ND 0.86 0.85 CA-MLK-M5B CA-MLK-l.6 CA-dLK-M7 Analysis (04/08/97) (04/08/97) (04/08/97)
I-131 <0.3 <0.3 <0.4 Sr-89 <0.8 <0.8 <0.7 Sr-90 4.2 1 0.6 3.0 1 0.5 0.8 1 0.3 K-40 2020.0 1 190.0 1190.0 1 150.0 1480.0 1 180.0 Zn-65 <7.9 <14.2 <18.2 Cs-134 <8.1 <5.8 <6.3 Cs-137 <7.5 <6.1 <7.8 E Ba-La-140 <4.5 <4.0 <3.8 E Ca (g/1) 0.92 0.98 1.09 Notes:
ND - No Data. See section 2.3 for explanation.
E-7
I l
TABLE E3 (Cont.)
MILK (pCi/kg dry) 1997 CA-MLK-M5B CA-MLK-M6 CA-MLK-M7 Analysis (04/21/97) (04/21/97) (04/22/97)
I-131 <0.5 <0.4 <0.4 Sr-89 <0.8 <0.7 <0.7 Sr-90 4.4 1 0.6 2.3 1 0.5 1.1 1 0.4 I K-40 1930.0 1 140.0 1170.0 1 150.0 1480.0 1 150.0 Zn-65 <7.4 <8.3 <12.9 I Cs-134 Cs-137
<2.2
<4.3
<5.6
<6.8
<3.7
<4.9 Ba-La-140 <1.4 <3.7 <2.2 Ca (9/l) 0.92 0.89 0.85 CA-MLK-M5h CA-MLK-M6 CA-MLK-M7 Analysis (05/12/97) (05/13/97) (05/13/97)
I-131 <0.4 <0.4 <0.4 I Sr-89 Sr 90
<0.8 5.6 1 0.7
<0.8 4.2 1 0.5
<0.7 0.8 1 0.3 K-40 1680.0 1 180.0 1330.0 i 150.0 1570.0 1 190.0 Zn-65 <19.0 <13.3 <7.6 Cs-134 <9.7 <4.7 <7.0 I Cs-137 Ba-La-140
<9.1
<4.1
<5.6
<2.3
<8.5
<4.9 Ca (g/1) 0.97 0.88 0.87 Notes:
[
u E-8
TABLE E3 (Cont.)
MILK (pCi/kg dry) 1997 CA-MLK-M5B CA-MLK-M6. CA-MLK-M7 Analysis (05/27/97) (05/27/97) (05/27/97)
I-131 <0.2 <0.2 <0.2 Sr-89 <1.1 <0.8 <0.7 Sr-90 5.3 1 0.7 3.1 1 0.5 0.8 1 0.3 K-40 1920.0 1 210.0 1300.0 1 140.0 1360.0 i 140.0 ,
Zn-65 <18.7 <7.4 <13.0 Cs-134 <3.8 <5.6 <2.8 Cs-137 <8.2 <6.2 <4.7 Ba-La-140 <2.8 <4.3 <1.6 Ca (g/1) 0.85 0.91 0.86 I
CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Anal ysis (06/09/97) (06/10/97) (06/10/97)
I-131 <0.2 <0.4 <0.3 Sr-89 <0.7 <0.7 <0.6 Sr-90 5.8 1 0.7 3.5 1 0.5 1.0 1 0.3 ;
K-40 1920.0 1 110.0 1420.0 1 170.0 1500.0 1 190.0 Zn-65 <5.1 <9.7 <7.3 Cs-134 <4.6 <5.6 <3.5 Cs-137 <4.6 <6.6 <7.7 Ba-La-140 <1.2 <6.2 <3.2 Ca (g/1) 0.76 0.87 0.88 Notes:
E-9 :
I
TABLE E3 (Cont.)
MILK (pci/kg dry) 1997 l CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (06/24/97) (06/24/97) (06/24/97) 1-131 <0.3 <0.2 <0.3 I Sr-89 Sr-90
<0.8 5.7 1 0.7
<0.7 2.7 1 0.5
<0.7 1.1 1 0.3 K-40 1790.0 1 140.0 1340.0 1 170.0 1420.0 1 170.0 Zn-65 <5.4 <7.7 <12.2 I Cs-134 Cs-137
<4.9
<5.8
<2.7
<7.2
<4.9
<3.2 Ba-La-140 <2.7 <2.4 <2.6 Ca (g/1) 0.80 0.73 0.90 I
CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (07/09/97) (07/09/97) (07/09/97)
I-131 <0.3 <0.3 <0.4 Sr-89 <1.8 <1.6 <1.8 Sr-90 1.4 1 0.5 3.4 1 0.7 4.8 1 0.9 K-40 1670.0 1 190.0 1150.0 i 130.0 1300.0 1 140.0 Zn-65 <17.3 <9.7 <5.1 Cs-134 <6.5 <6.0 <5.2 I Cs-137 Ba-La-140
<7.4
<3.0
<4.5
<4.1
<5.4
<1.5 I Ca (g/1) 0.86 0.96 0.72 Notes:
L r
u E-10
~
l l
l l
TABLE E3 (Cont.)
MILK (pCi/kg dry) 1997 CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 I
Analysis (07/22/97) (07/22/97) (07/22/97)
I-131 <0.4 <0.4 <0.4 Sr-89 Sr-90
<1.3 5.3 1 0.8
<1.4 1.0 1 0.5
<1.3 0.9 1 0.4 Il l
K-40 1830.0 1 160.0 1270.0 1 130.0 1300.0 1 150.0 i Zn-65 <10.9 <5.9 <6.9 i Cs-134 <5.1 <3.5 <6.1 I Cs-137 <7.5 <5.7 <4.6 Ba-La-140 <5.6 <2.7 <5.8 Ca (g/l) 0.77 0.94 1.01 CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Ana1Ysis (08/12/97) (08/13/97) (08/13/97)
I-131 <0.4 <0.4 <0.4 Sr-89 <1.0 <1.0 <1.0 Sr-90 5.1 1 0.6 2.5 1 0.4 1.2 1 0.4 i
K-40 1930.0 1 140.0 1190.0 1 150.0 1300.0 1 160.0 Zn-65 <10.1 <12.3 <11.7 Cs-134 <4.2 <5.8 <6.9 Cs-137 <4.4 <4.6 <6.3 Ba-La-140 <1.6 <2.1 <2.9 Ca (g/1) 0.86 0.89 0.92 Notes: ,
1 E-11 l I)
L I
TABLE E3 (Cont.)
{
MILK (pCi/kg dry) 1997 CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (08/25/97) (08/26/97) (08/26/97)
{
I-131 <0.2 <0.2 <0.2
[
Sr-89 <0.9 <0.9 <0.9 Sr-90 6.0 1 0.6 2.0 1 0.4 1.3 1 0.4
[.
K-40 1790.0 1 210.0 1140.0 1 150.0 1320.0 1 70.0 Zn-65 <19.2 <15.7 <5.1 Cs-134 <4.0 <7.4 <2.1 Cs-137' <10.2 <5.7 <3.0 Ba-La-140 <4.3 <4.0 <4.4
[
Ca (g/1) 1.00 1.18 1.20
[
[ CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (09/08/97) (09/09/97) (09/09/97) 1-131 <0.4 <0.3 <0.2
[ Sr-89 <0.8 <0.7 <0.8 2.7 1 0.6 Sr-90 3.9 i 0.6 <0.7 K-40 1890.0 1 200.0 1230.0 1 190.0 1300.0 1 170.0 Zn-65 <13.0 <12.5 <8.7 r Cs-134 <4.5 <7.6 <6.5 L Cs-137 <8.2 <8.3 <7.4 Ba-La-140 <3.7 <4.2 <3.7
[ Ca (g/1) 0.86 0.96 0.75 Notes:
E-12
TABLE E3 (Cont.)
MILK (pCi/kg dry) 1997
)
CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (09/22/97) (09/23/97) (09/23/97) 1-131 <0.2 <0.2 <0.3 1
1 Sr-89 <1.3 <1.4 <1.2 Sr-90 4.2 1 0.6 2.4 1 0.5 0.8 1 0.3 K-40 2150.0 1 210.0 1030.0 1 170.0 1250.0 1 160.0 Zn-65 <18.2 <18.0 <17.8 Cs-134 <7.0 <7.3 <6.6 Cs-137 <6.7 <7.5 <6.6 Ba-La-140 <5.5 <10.9 <5.6 Ca (g/1) 0.91 0.91 1.09 CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (10/14/97) (10/15/97) (10/15/97)
I-131 <0.3 <0.2 <0.2 Sr-89 <0.7 <0.6 <0.6 I
Sr-90 5.2 1 0.8 2.8 1 0.6 0.8 1 0.4 K-40 1920.0 1 180.0 1180.0 1 100.0 1260.0 1 110.0 Zn-65 <19.6 <15.9 <4.8 Cs-134 <8.1 <3.2 <2.2 Cs-137 <10.1 <4.0 <4.1 Ba-La-140 <10.7 <2.8 <6.6 Ca (g/1) 0.90 0.78 1.02 Notes:
E-13 l
1 l
TABLE E3 (Cont.)
MILK (pC1/kg dry) 1997 CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (11/12/97) (11/12/97) (11/12/97)
I-131 ND <0.4 <0.3 Sr-89 ND <1.1 <1.1 Sr-90 ND 1.7 i 0.4 1.3 1 0.4 K-40 ND 1130.0 1 190.0 1010.0 i 170.0 Zn-65 ND <7.4 <11.8 Cs-134 ND <9.5 <8.1 Cs-137 ND <4.4 <3.7 Ba-La-140 ND <6.3 <4.5 Ca (g/1) ND 0.90 0.81 CA-MLK-M5B CA-MLK-M6 CA-MLK-M8 Analysis (12/09/97) (12/09/97) (12/09/97) 1-131 ND <0.4 <0.4 Sr-89 ND <0.9 <0.7 l
Sr-90 ND 2.5 1 0.6 1.7 1 0.5 K-40 ND 1190.0 i 160.0 1240.0 i 160.0 Zn-65 ND <15.4 <12.9 Cs-134 ND <6.4 <3.1 Cs-137 ND <4.4 <6.3 Ba-La-140 ND <2.5 <4.1 Ca (g/1) ND 0.90 1.02 l
Notes:
ND = No Data. See section 2.3 for explanation.
t E-14
)
TABLE E4 i
VEGETATION (pCi/kg wet) 1997 CA-FPL-V3 CA-FPL-V1 CA-FPL-V3 I
Analysis LETTUCE (05/27/97)
SPINACH (05/27/97)
LETTUCE (06/10/97) l Gross Alpha 80.8 i 45.3 304.5 i 108.1 218.3 1 55.3 Gross Beta 2912.1 1 104.2 4556.7 1 182.0 4307.0 1 101.0 I-131 <7.3 <9.9 <11.8 K-40 3513.0 1 269.0 5257.0 1 450.0 5040.0 1 219.0 Mn-54 <3.6 <7.6 <9.0 Co-58 <7.8 <6.8 <7.2 Co-60 <11.3 <17.6 <12.6 Cs-134 <10.0 <15.6 <9.5 Cs-137 <10.1 <13.8 <9.3 CA-FPL-V3 CA-FPL-V9 CA-FPL-V9 MUSTARD SPINACH CABBAGE GREENS Analysis (06/10/97) (06/09/97) (06/09/97)
Gross Alpha 118.7 i 66.5 246.8 i 72.9 211.1 1 81.9 Gross Beta 6521.4 i 188.1 5370.0 1 146.2 5324.4 1 157.7 I-131 <11.4 <10.5 <9.7 K-40 6699.0 1 301.0 4622.0 1 420.0 4593.0 1 429.0 Mn-54 <8.8 <5.8 <15.7 Co-58 <8.9 <7.5 <11.3 Co-60 <13.6 <17.2 <17.1 Cs-134 <9.9 <9.6 <8.7 Cs-13) <4.5 <16.7 <16.9 Notes:
E-15 I
I
[
l TABLE E4 (Cont.)
VEGETATION (pCi/kg wet)
[- 1997 CA-FPL-V10 CA-FPL-V1.0 CA-FPL-V10
{
SPINACH LETTUCE CABBAGE Analysis (07/09/97) (07/09/97) (07/09/97)
{
Gross Alpha' <152.2 162.8 1 98.3 150.1 1 95.0 Gross Beta 7370.8 1 302.7 6014.0 1 250.2 4512.8 1 198.8 I-131 <24.8 <21.0 <17.7 K-40 8809.0 1 366.0 4908.0 1 361.0 2889.0 1 333.0 Mn-54 <12.7 <14.8 <9.1
[ Co-58 Co-60
<8.9 <8.1 <13.8
<18.4 <17.1 <14.3 Cs-134 <10.7 <14.0 <9.8 Cs-137 <15.1 <14.2 <12.9
{
[.
CA-FPL-V3 CA-FPL-V3 CA-FPL-V9 TURNIP
{ GREENS MUSTARD GREENS CABBAGE Analysis (07/09/97) (07/09/97) (07/08/97)
Gross Alpha 236.1 1 93.3 <78.0 <153.6 Gross Beta 4577.0 1 157.2 3752.5 i 176.4 5143.1 1 289.6 b'
I-131 <15.6 <10.2 <29.2 K-40 4440.0 1 322.0 4796.0 1 277.0 4396.0 1 467.0 Mn-54 <7.9 <3.3 <9.4 Co-58 <5.5 <9.6 <17.2
[ Co-60 <7.7 <13.0 <12.2 Cs-134 <7.8 <8.4 <8.7 q Cs-137 <9.1 <8.2 <13.5 '
Notes:
r L E-16 I
. I
TABLE E4 (Cont.)
VEGETATION (pCi/kg wet) 1997 CA-FPL-V9 CA-FPL-V9 CA-FPL-V9 MUSTARD TURNIP LETTUCE GREENS GREENS Analysis (07/08/97) (07/08/97) (07/08/97)
Gross Alpha 254.5 i 104.8 <68.8 <145.8 Gross Beta 5548.6 1 210.6 4447.4 1 185.2 4492.1 1 219.0 1-131 <31.8 <33.9 <38.5 K-40 5451.0 1 518.0 3921.0 1 465.0 4544.0 1 521.0 Mn-54 <15.2 <22.3 <8.5 l Co-58 <18.1 <21.5 <9.4 m Co-60 <27.1 <19.5 <29.2 Cs-134 <20.7 <20.2 <16.6 g Cs-137 <19.4 <24.2 <24.3 E CA-FPL-V10 CA-FPL-V3 CA-FPL-V9 TURNIP CABBAGE CABBAGE GREENS Analysis (08/05/97) (08/15/97) (08/13/97)
Gross Alpha 95.9 i 55.3 80.3 1 46.3 331.2 1 123.4 Gross Beta 3065.3 1 131.5 2523.4 i 108.6 3480.3 1 174.4 I-131 <19.1 <20.9 <17.5 I
K-40 2931.0 1 498.0 3375.0 348.0 3337.0 1 399.0 Mn-54 <19.5 <5.8 <14.2 Co-58 <23.1 <7.7 <12.0 Co-60 <23.9 <13.1 <23.5 Cs-134 <15.4 <9.8 <13.4 Cs-137 <22.2 <8.5 <16.3 l
Notes:
i E-17 I,
4 j
( l l
TABLE E4 (Cont.)
VEGETATION (pCi/kg wet) 1997 CA-FPL-V9 CA-FPL-V10 CA-FPl.-V10 CABBAGE CABBAGE' LETTUCE Analysis (08/13/97) (09/09/97) (09/09/97)
[ Gross Alpha 326.5 i 186.9 78.6 i 37.0 127.2 i 60.3 Gross Beta 4825.3 1 274.4 2404.7 i 79.6 3106.6 1 120.9 I-131 <13.6 <27.6 <23.0 f K-40 3003.0 1 248.0 2831.0 1 524.0 3699.0 1 456.0 Mn-54 <4.6 <24.2 <14.5 Co-58 <6.7 <19.8 <14.7
{ Co-60 <10.0 <26.0 <18.7 Cs-134 <11.9 <20.1 <l5.5 Cs-137- <10.0 <21.9 <17.8 f ,
f CA-FPL-V9 CA-FPL-V10 CA-FPL-V9 MUSTARD TURNIP
{ GREENS LETTUCE GREENS l Ana1Ysis (09/08/97) (10/15/97) (10/14/97)
Gross Alpha 202.6 i 80.9 212.7 i 86.4 87.8 i 42.9
[ Gross Beta 9414.5 1 220.0 7728.1 1 209.7 2458.1 i 81.9 I-131 <20.9 <19.8 <19.8 X-40 5284.0 1 569.0 4228.0 1 459.0 5415.0 1 491.0 Mn-54 <17.7 <17.3 <13.8 Co-58 <18.8 <15.7 <9.2 Co-60 <25.5 <12.9 <14.4
{ Cs-134 <15.2 <18.6 <13.4 Cs-137 <20.1 <21.9 <14.2 Notes:
E-18 1
1 TABLE E4 (Cont.) !
VEGETATION (pC1/kg wet) 1997 CA-FPL-V10 -CA-FPL-V9 CA-FPL-V9 MUSTARD TURNIP LETTUCE GREENS GREENS Analysis (11/13/97) (11/12/97) (11/12/97)
Gross Alpha 441.0 1 86.9 283.4 1 99.0 450.6 i 113.7 Gross Beta 4767.0 i 134.0 5364.2 1 196.8 5427.6 i 183.9 I-131 <19.3 <10.8 <8.1 ,
K-40 5050.0 1 376.0 6002.0 1 388.0 5058.0 1 396.0 Mn-54 <9.3 <9.7 <6.9 Co-58 <11.5 <12.2 <8.7 Co-60 <17.9 <12.0 <14.0 Cs-134 <10.7 <12.0 <14.0 Cs-137 <6.0 <14.2 <13.8 Analysis ( ) ( ) ( )
Gross Alpha Gross Beta I-131 ,
l K-40 Mn-54 Co-58 E Co-60 E Cs-134 Cs-137 l
Notes: .
E-19 I
l
(
TABLE E5 S0Il (pCi/kg dry) 1997 CA-50L-F1 CA-S0L-F2 CA-SOL-F6 Analysis (12/17/97) (12/17/97) (12/17/97)
{
Gross Alpha 20322.0 1 5040.0 13293.0 1 4227.0 14955.0 1 4162.0 Gross Beta 26716.0 1 3313.0 24266.0 1 3259.0 22982.0 1 2924.0 -
K-40 12830.0 1 659.0 13053.0 1 688.0 12085.0 1 656.0 Mn-54 <22.8 <24.0 <20.4 a
[ Co-58 <33.4 <28.4 <9.0 Co-60 <24.2 <29.3 <32.6 Cs-134 <74.9 <74.0 <71.7
{ Cs-137 1523.2 i 62.7 910.9 i 59.3 924.9 i 52.8 e
{
CA-50L-F8 CA-50L-F9 CA-SOL-PRIO Analysis (12/17/97) (12/17/97) (12/17/97)
Gross Alpha 19042.0 1 4577.0 17465.0 1 4458.0 16328.0 1 4308.0 Gross Beta 21202.0 1 2870.0 41742.0 1 3625.0 22106.0 1 2947.0 f
K-40 10254.0 1 605.0 12367.0 1 627.0 10484.0 1 598.0 Mn-54 <21.1 <20.1 <23.5 Co-58 <19.7 <18.6 <27.3
[ Co-60 <20.3 <27.3 <23.1 Cs-134 <69.4 <67.6 <74.0 Cs-137 1249.5 1 58.3 1127.3 1 53.1 609.0 1 43.6
{
[
(
Notes:
f E-20
- i. ' . _ _ _ _ . _ _ _
I l
l TABLE E5 (Cont.)
S0Il (pCi/kg dry) 1997 CA- S0'. - PR3
. ei-SOL-PR4 CA-SOL-PR5 Analysis (12/17/97) ('2/17/97) (12/17/97)
Gross Alpha 17575.0 1 4900.0 14o39.0 1 4408.0 13962.0 1 3343.0 Gross Beta 22500.0 1 3048.0 26699.0 1 3289.0 23138.0 1 2212.0 K-40 11837.0 1 657.0 11677.0 1 663.0 12496.0 1 704.0 Mn-54 <19.8 <23.0 <21.6 Co-58 <38.7 <19.8 <30.8 Co-60 <25.3 <20.1 <28.5 Cs-134 <68.4 <67.2 <68.3 Cs-137 765.4 1 47.2 753.8 1 45.7 805.5 1 49.8 CA-S0L-PR7 CA-S0L-V3 Analysis (12/17/97) (12/17/97)
Gross Alpha 11177.0 1 3904.0 12874.0 1 4306.0 Gross Beta 22135.0 1 3107.0 26752.0 1 3068.0 K-40 10706.0 1 620.0 15342.0 1 666.0 Mn-54 <21.2 <19.4 Co-58 <20.8 <32.4 Co-60 <30.4 <30.8 Cs-134 <68.2 <64.2 Cs-137 417.8 1 39.6 331.9 i 34.0 l
Notes:
l l
E-21
TABLE E6 WETLANDS (pCi/kg dry) l 1997 I CA-SOL-W1 CA-SOL-W2 Analysis (12/17/97) (12/17/97)
Gross Alpha 13428.0 1 4012.0 11360.0 1 3731.0 Gross Beta 23027.0 1 3081.0 39860.0 1 3568.0 K-40 17962.0 1 1240.0 14843.0 1 670.0 Mn-54 <37.8 <19.5 Co-58 <58.4 <8.2 Co-60 <26.3 <27.1 Cs-134 <61.0 <62.5 Cs-137 204.4 i 63.9 107.4 1 24.3 CA-S0L-W3 CA-S0L-W4 Analysis (12/17/97) (12/17/97)
Gross Alpha 11789.0 i 4200.0 18196.0 1 4828.0 Gross Beta 20905.0 1 2983.0 20428.0 1 3011.0 K-40 11269.0 1 582.0 11597.0 1 945.0 Mn-54 <21.8 <33.7 Co-58 <21.1 <52.8 Co-60 <23.0 <41.2 Cs-134 <60.6 <58.9 Cs-137 87.0 1 22.2 <40.1 Notes:
o E-22 _,
1 TABLE E7 SURFACE WATER (pCi/1) 1997 UA-bWA-5UI LA-bWA-5U2 Analysis (01/14/97) (01/14/97)
H-3 <180.0 -
<180.0 Mn-54 <7.0 <4.6 Fe-59 <6.5 <4.9 Co-58 <3.3 <6.6 Co-60 <2.4 <2.2 Zr-Nb-95 <4.9 <2.9 Cs-134 <5.4 <5.6 Cs-137 </.2 <3.8 Ba-La-140 <5.0 <3.7 ,
LA-dwA-dui LA-dwA-soz Analysis (02/11/97) (02/11/97)
H-3 <156.0 <162.0 Mn-54 <2.1 <3.4 Fe-59 <5.7 <9.2 Co-58 <2.4 <3.9 Co-60 <l.9 <3.4 Zr-Nb-95 <4.4 <3.0 Cs-134 <3.5 <4.3 Cs-137 <5.7 <4.4 Ba-La-140 <3.9 <5.6 Notes:
E-23 I
TABLE E7 (Cont.)
SURFACE WATER (pCi/1) 1997 CA-dWA-dUI CAa5WA-502 Analysis (03/13/97) (03/13/97)
H-3 <152.0 <152.0 Mn-54 <4.3 <3.5 Fe-59 <6.7 <5.1 Co-58 <3.6 <5.3 Co-60 <3.9 <1.9 I' Zr-Nb-95 Cs-134
<4.5
<2.4
<2.8
<2.0 Cs-137 <5.2 <4.7 Ba-La-140 <6.0 <5.1 I
I LA-dwA-dui LA-dwA-duz Analysis (04/08/97) (04/08/97)
H-3 <151.0 <151.0 Mn-54 <2.8 <7.1 I Fe-59 Co-58 Co-60
<6.3
<3.5
<2.5
<12.0
<6.0
<4.5 Zr-Nb-95 <4.7 <8.0 I Cs-134 Cs-137 Ba-La-140
<5.3
<6.2
<5.6
<4.1
<7.0
<5.4 I
Notes:
l l
u E-24
TABLE E7 (Cont.)
SURFACE WATER (pCi/1) 1997 i
LA-5WA-5UI LA-5WA-5UZ j Analysis (05/13/97) (05/13/97)
H-3 <176.0 <176.0 Mn-54 <4.7 <3.6 Fe-59 <6.7 <5.1 Co-58 <7.1 <4.7 Co-60 <5.1 <3.5 Zr-Nb-95 <3.6 <4.5 Cs-134 <2.9 <1.8 Cs-137 <6.0 <4.4 Ba-La-140 <6.3 <4.1 I
LA-swA-Sul G-5wA-Suz Analysis (06/16/97) (06/16/97)
H-3 <162.0 <162.0 Mn-54 <1.6 <5.0 Fe-59 <4.3 <4.1 Co-58 <3.5 <3.1 Co-60 <2.9 <2.3 Zr-Nb-95 <5.9 <3.3 Cs-134 <3.2 <2.4 E Cs-137 <4.2 <6.2 g Ba-La-140 <3.0 <5.4 E
Notes:
I E-25
TABLE E7 (Cont.)
SURFACE WATER (pCi/l) 1997 CA-5WA-dul CA-5WA-5U2 Analysis (07/15/97) (07/15/97)
H-3 <163.0 <163.0 Mn-54 <2.1 <3.8 Fe-59 <4.2 <6.0 Co-58 <4.7 <2.4 I Co-60 Zr-Nb-95 Cs-134 Cs-137
<3.3
<7.3
<2.4
<5.4
<1.9
<4.4
<3.8
<4.1 Ba-La-140 <6.3 <9.0 I
I LA-sWA-dui cA-dWA-duz Analysis (08/13/97) (08/13/97)
H-3 <163.0 <163.0 Mn-54 <2.0 <1.2 I Fe-59 Co-58 Co-60 Zr-Nb-95
<4.3
<2.5
<2.3
<3.3
<2.3
<l.8
<1.4
<2.6 I Cs-134 Cs-137-Ba-La-140
<2.6
<2.4
<4.6
<l.9
<0.9
<6.2 I
I Notes:
?
L E-26
i TABLE E7 (Cont.)
SURFACE WATER (pCi/1) 1997 CA-5WA-501 UA-bWA-502 Analysis (09/09/97) (09/09/97)
H-3 <168.0 <168.0 Mn-54 <1.8 <5.0 Fe-59 <5.7 <11.7 Co-58 <3.4 <l.4 l Co-60 <3.1 <2.4 Zr-Nb-95 <5.7 <7.8 Cs-134 <3.5 <2.3 Ba 140 58 8 I! l i
LA-swA-dul LA-dwA-duz Analysis (10/15/97) (10/15/97)
H-3 <175.0 <175.0 Mn-54 <2.5 <2.6 Fe-59 <6.9 <11.9 m Co-58 Co-60
<5.9
<3.6
<6.2 g
<2.5 Zr-Nb-95 <4.6 <8.4 Cs-134 <3.0 <5.1 Ba 140 d6 .6 l l
Ii i j
Notes:
I 1
E-27 l
\
TABLE E7 (Cont.) _
SURFACE WATER (pCi/1) 4 1997 ,
-~~
CA-bWA-bU1 CA-bWA-bUZ Analysis (11/12/97) (11/'12/97)
H-3 <164.0 164.0 1 89.0 Mn-54 <5.1 <6.3 ,
Fe-59 <6.2 <5.8 Co-58 <6.6 <5.3 Co-60 <5.3 <2.1 Zr-Nb-95 <10.4 <4.0 Cs-134 <6.6 <7.8 Cs-137 <4.0 <4.8 "
Ba-La-140 <8.7 <7.9 o
. 9 LA-bWA-bUI LA-bWA-bUZ
_ Anal ysi s (12/09/97) (12/09/97)
H-3 713.0 i 107.0 219.0 i 89.0 Mn-54 <5.3 <4.3 Fe-59 <11.7 <7.6 C0-58 <6.6 <6.0 Co-60 <2.3 <2.5 Zr-Nb-95 <9.5 <3.7 Cs-134 <5.9 <6.2 Cs-137 <6.2 <3.0 Ba-La-140- <7.0 <11.6 -.N s
9 Notes:
E-28
I TABLE E8 GROUND WATER (pCi/1) 1997 CA-WWA-UUl CA-WWA-tib CA-WWA-tub Analysis (02/20/97) (03/06/97) (03/10/97)
H-3 <166.0 <153.0 <l53.0 Mn-54 <3.0 <1.7 <3.5 Fe-59 <3.5 <11.3 <8.0 Co-58 <2.8 <2.6 <1.4 Co-60 <1.9 <3.4 <3.9 Zr-Nb-95 <l.8 <4.8 <4.1 Cs-134 c4.2 <3.8 <3.2 Cs-137 <2.3 <3.3 <3.8
, Ba-La-140 <5.1 <7.5 <4.9
'I q
CA-WWA-uul LA-wwA-tib cA-WWA-tub i' Analysis (05/13/97) (06/20/97) (06/20/97) ,
H-3 <176.0 <162.0 <162.0 Mn-54 <3.7 <2.3 <6.8 Fe-59 <10.9 <3.6 <5.5 '
Co-58 <7.7 <3.4 <6.7 Co-60 <5.3 <2.2 <3.3 Zr-Nb-95 <9.2 <4.4 <8.8 Cs-134 <4.0 <7.1 <3.3 Cs-137 <7.3 <4.5 <6.0 Ba-La-140 <7.2 <5.4 <6.4 I
I Notes:
l l l
E-29 I
TABLE E8 (Cont.)
GROUND WATER (pCi/1) 1997 CA-WWA-UUl LA-WWA-Flb UA-WWA-tub Analysis (09/09/97) (09/18/97) (09/18/97)
H-3 <168.0 <168.0 <168.0 Mn-54 <l.8 <4.2 <3 5 Fe-59 <3.5 <11.0 <10.1 Co-58 <2.9 <7.4 <2.8 I Co-60 Zr-Nb-95 Cs-134 Cs-137
<3.2
<3.2
<3.9
<3.3
<6.6
<9.2
<4.4
<4.9
<4.8
<3.7
<4.2
<3.0 Ba-La-140 <7.6 <5.3 <5.4 I
I I Analysis LA-WWA-UUI (10/21/97)
LA-WWA-tib (12/05/97)
LA-WWA-tub (12/05/97)
H-3 <175.0 <164.0 <164.0 Mn-54 <4.1 <2.5 <4.4 I Fe-59 Co-58 Co-60 Zr-Nb-95
<3.1
<3.9
<3.0
<4.3
<2.5
<3.7
<2.1
<5.7
<8.5
<4.8
<4.3
<3.0 I Cs-134 Cs-137 Ba-La-140
<3.7
<3.9
<8.1
<l.8
<4.0
<7.8
<5.4
<5.3
<l4.5 I
Notes:
c E-30 u
TABLE E9 )
BOTTOM SEDIMENT (pCi/kg dry) 1997 1
CA-A 5-A CA-A 5-C Analysis (04/0 /97) (04/0 /97)
<l5.8 Mn-54 <14.9 Fe-59 <33.7 '<39.8 Co-58 <28.8 <20.6 I Co-60 <l5.4 <13.4 Zr-Nb-95 <35.1 <10.4 Cs-134 <50.3 <34.5 Cs-137 41.1 1 19.9 <14.4 E Ba-La-140 <14.7 <l5.1 g I
CA-Ay5-A CA-Ay5-C Analysis (10/21/97) (10/21/97)
Mn-54 <12.5 <l5.4 Fe-59 <28.6 <51.0 Co-58 <20.5 <12.0 Co-60 <l3.2 <l5.6 Zr-Nb-95 <16.4 <44.2 Cs-134 <26.7 <46.3 I
l Cs-137 <12.4 34.2 1 13.5 Ba-La-140 <25.5 <31.6 l
I l
Notes:
I I
I I
E-31 I
I i
TABLE E10 SHORELINE SEDIMENT (pCi/kg dry) '
1997 LA-Ayd-A LA-Ays-c Analysis (04/09/97) (04/09/97)
Mn-54 <17.0 <l5.8 ~
'e Fe-59 <54.2 '31.2 Co-58 <6.7 <22.2 Co-60 <14.6 <l8.1 Zr-Nb-95 <21.2 <16.6 Cs-134 <50.0 <47.6 Cs-137 33.0 i 14.9 32.8 i 15.7
- Ba-La-140 <14.9 <18.7
^
Y. y CA-AQS-A LA-Ay3-0 Analysis (10/21/97) (10/21/97) ,
Mn-54 <18.8 <17.5 Fe-59 <46.0 <30.8 C0-58 <29.4 <12.9 Co-60 <27.4 <16.4 Zr-Nb-95 <53.0 <40.5 Cs-134 <60.4 <45.2 Cs-137 142.1 1 31.9 <12.7 Ba-La-140 <47.7 <25.3 Notes:
T.
E-32
1 l
TABt.E Ell FISH, CA-AQF-A (pCi/kg WET) 1997 RIVER CHANr;EL FRESHWATER SMALLMOUTH CARPSUCKER CARP CATFISH ORUM BUFFALO Analysis (04/09/97) (04/09/97) (04/09/97) (04/09/97) (04/09/97) _
Sr 89 <9.4 <8.3 .<7.8 <6.8 <8.6 Sr-90 <4.9 <4.3 <4.3 <3.4 <4.8 ,
K-40 2256.0 t 476.0 3139.0 t 410.0 2703.0 e 368.0 2855.u 2 226.0 3213.0 488.0 Mn-54 <22.6 <11.4 <13.1 <7.4 <16.6 Fe-59 <57.3 <22.5 <48.4 <18.2 <24.0 Co-58 <16.2 <13.8 <19.8 <10.2 <15.7 Co-60 <9.9 <9.2 <7.C <8.7 <17.1 Cs-134 <19.4 <9.4 <7.9 <6.2 <10.0 Cs-137 <20.7 <16.2 <13.1 <6.7 <14.2 I
CHANNEL BL1JE RIVER SMALLMOUTH CAiFISH $UCKER CARP CARPSUCKER BUFFALO Analysis (10/21/P7) (10/21/97) (10/21/97) (10/21/97) (10/21/97) E Sr-89 <5.8 <!4.1 <8.5 <7.3 <5.9 Sr-90 <2.1 <4.8 <3.2 <2.5 <2.2 K-40 3212.0 446.0 ;774.0 2 427.0 3095.0 354.0 3042.0
- 359.0 2983.0 t 429.0 Mn-54 <9.4 <11.9 <8.7 <7.4 <24.7 Fe-59 <57.7 <49.4 <27.9 <69.7 <73.0 Co-58 <29.4 <22.8 <17.5 <18.0 <19.9 Co-60 <18.2 <!8.3 <12.4 <9.4 <28.3 Cs-134 <22.8 <16.9 </.1 <!3.5 <15.7 Cs-137 <7.4 <11.1 <11.8 <12.9 <16.6 I
....s.
I I
E-33 I
TABLE Ell (Cont.)
FISH, CA-AQF-C (pCi/kg WET) 1997 RIVER CHANNEL FRESHWATER SMALLMOUTH CARPSUCKER CARP CATF]SH DRUM 8UFFALO Analysis (04/09/97) (04/09/97) (04/09/97) (04/09/97) (04/09/97)
Sr-89 <5.5 < 5. 5 <6.3 <6.5 <9.4 Sr-90 <3.0 <3.0 <3.4 <3.4 <5.3 K-40 2320.0 2 352.0 2450.0 2 412.0 2536.0 t 256.0 2685.0 t 389.0 2939.0 t 379.0 Mn-54 <16.6 <17.7 <12.8 <!2.9 <15.3 Fe-59 <36.1 <22.1 <17.1 <21.0 <35.2 Co-58 <19.8 <17.4 <7.9 <15.1 <7.9 Co-60 <16.2 <10.6 <11.6 <9.8 <13.0 Cs-134 <15.5 <9.1 <!3.1 <15.9 <17.9 Cs-137 c14.7 <17.8 <13.8 46.5 <13.4 CHANNEL BLUE RIVER SMALLMOUTH CATFISH $UCKER CARP CARPSUCKER BUFFALO Anal ysi s (10/21/97) (10/21/97) (10/21/97) (10/21/97) (10/21/97)
Sr-89 <9.6 <7.6 <15.9 <14.0 <!4.0
$r-90 <3.5 <4.1 <7.5 <6.6 <6.8 K-40 3344,0 t 366.0 2917.0 2 399.0 2502.0 t 416.0 3283.0 t 479.0 2983.0 2 474.0 Mn-54 <15.4 <17.5 <9.2 <10.3 <7.9 Fe-59 <70.7 <53.2 <31.5 <73.7 <90.0 Co-58 <12.6 <28.8 <19.5 <10.5 <25.5 Co-60 <17.0 <9.7 <24.9 <!3.4 <9.9 Cs-134 <7.6 <15.3 <19.5 <13.1 <!5.0 Cs-137 <!2.3 <20.1 <14.1 <10.0 <17.2 hotes:
E-34
C C C C C C C C C C C C C C C C C C C C C C C C C C L N A A A A A A A A A A A A A A A A A A A A A A A A A A C O o
t
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I I I I I I I I I I I I I I I I I I I I I I I O C D A
_ t D D D D D D D D D D D D C D D D D D D D D D D D D D E T s M H M M M M M M M H M H M H H M M H M -MMHHMHM I
O
- 2 2-2 2- 1 - - - - - - - - 01 2 1 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 O 8 7 6 5 4 3 2 l N
a a a a N
O a a a
(
M_ _
8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 D T F
= 8 8 8 8 8 8. 8. .8 8 8 8 8 8 8 7 7 7 8 7 7 8 8 . 8. 8 8 7 A I I
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. 9 9 9 0 9 9 0 0 0 0 0 9 S E L
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D 1 a
1 1 2 6. 7. 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 7 6. 7. 6 6 6 7 .6. 7 6 7 7 6 8 6 6 4 4 7 . 7 6 1 1 1 1 1 (
M E I
R -
t . . R X S
.0 2 3 7 4 9 6 0 3 E P T
.a 1 5 3 5 8 2 9 1 9 4 3 8 9 7 6 2 3 T
M O O -
Q
- 2
- 2 2 2 2 2 2 2 2 2 2
- 2 2 1 2 2 2 2 1 2 2 2 2 S T t U A U S 0 0 0 0 0 1 0 0 0 0 1. .0 0 0 0 0 .0 . 0. .1 0 0 0 0 0 0 0 R L A
_ e . . . . 2 E R o
M e 5 4 9 7 8 0 6 5 8 7 0 4 7 6 5 8 7 6 0 5 4 4 4 6 5 6 )
T E
s R e 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 c 2 6 7 6 6 7 7 7 7 . 6 6 8 7 .8. .7 7 7 6 8 6 7 4 5 8. .7 6' O ( E t . . . . . T M X i 4 .9 7 8 2 5 3 5 3 7 7 2 3 1 0 6 7 4 6 7 1 8 3 0 4 7 R R P N
_ o 2 2 2 2 2 2 2 2 2 2 2 2 E O E t M S T
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4 UNION ELECTRIC COMPANY ST. LOUIS, MISSOURI CALLAWAY PLANT SECTION 4.0 NONRADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL REPORT 1997
1 CONTENTS Section Title Page 1.0 Introduction 1 2.0 Unusual or Important Events . 1 3.0 EPP Noncompliances 1 4.0 Nonroutine Reports 1 5.0 Plant Design and Operation Environmental Evaluations 1 i
1.0 INTRODtICTION Union Electric Company (UEC), in accordance with federal regulations and the desire to maintain the quality of the local environment around the 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 ofnonradiological environmental values during operation of the Callaway Plant.
This report describes the conduct of the EPP for the Callaway Plant during 1997.
2.0 ITNIISUAL OR IMPORTANT EVENTS No unusual or important events reportable under EPP Section 4.1 were identified during 1997.
3.0 EPP NONCOMPLIANCES During 1997 there were no noncompliances with the EPP.
4.0 NONROUTINE REPORTS There were no nonroutine reports submitted in accordance with EPP, Section 5.4.2 in 1997.
5.0 PLANT DESIGN AND OPERATION ENVIRONMENTAL EVALUATIONS This section lists all changes in plant design, operation, tests or experiments completed during 1997 which could have involved a potentially significant unreviewed environmental question in accordance with section 3.1 of Appendix B.
During 1997 there were eight plant design and operation changes that could have involved a potentially significant unreviewed environmental question. The interpretations and conclusions regarding these plant design and operation changes along with a description of the changes are presented below.
I 5.1 Callaway Modificatien Package 93-2037 5.1.1 Description of Change l
This change involved the construction and operation of a 3-pond lagoon system to !
treat the sanitary wastewater emuent. This lagoon system replaces the original mechanical wastewater treatment system at the plant. The lagoon system uses a long retention time along with biological treatment to break down the wastewater to an environmentally suitable emuent.
5.1.2 Evaluation of Change The construction of the lagoon system and the installation of the associated piping did I
not result in a significant increase in any adverse environmental impact, since all g measurable non-radiological effects were confined to the areas previously disturbed during site preparation and plant construction. The lagoon system was constructed 5
and is operated under the Missouri Department of Natural Resources regulations. E Therefore, this change did not constitute an unreviewed environmental question per 3 Section 3.1 of Appendix B to the Callaway Plant Operating License.
5.2 Callaway Modification Package 93-1013 5.2.1 Description of Change This change installed a fence along the east side of the UHS pond to minimize the amount of debris entering the pond due to the wind. In addition, this change installed a fence around the refueling water storage tank (RWST) to control dose received by plant personnel from this tank.
5.2.2 Evaluation of Change Installation of this change was on land previously disturbed during plant constmetion and does not contain any cultural resources. The installation of the fencing did not l impact the existing stormwater mnoff Therefore, this change did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
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5.3 Callaway Modifcation Package 95-1013 5.3.1 Rgscrintion of Change This modification removed the bladder from the recycle holdup tanks. The modification also closes the vent that was open to the room and opens the existing vent connection to the radwaste Building ventilation system. The recycle holdup tanks are vented directly into the radwaste building ventilation system, bypassing the waste gas treatment system.
5.3.2 Evaluation of Change This modification did not result in the creation of a new release pathway, since the radwaste building ventilation system exhaust is currently a monitored release pathway to the environment. In addition, the modification did not create a new or different type of pollutant. The gaseous releases from the radwaste building are controlled by the Offsite Dose Calculation Manual to ensure releases are within regulatory limits.
I The removal of the bladders allowed dissolved gases in the RCS blowdown to the RHUT to be vented directly to the radwaste building ventilation system. This would increase the amount of gaseous activity released to the environment through the radwaste building Vent. While this would result in an increased release of gaseous y activity over the year, the increase would be a small fraction of the total gaseous g activity released during the year and would not be significant enough to cause effluent limits to be exceeded.
Therefore, this modification did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
5.4 Callaway Modification Package 95-2001 and Final Safety Analvsis Report Change Notice 97-001 5.4.1 Description of Change This change provided for a licensed contractor to install a deep well at the intake structure for lube water. The well is capable of a minimum of 200 gpm output and is cross connected to the existing well piping. The controls were reconfigured to utilize the deep well as primary source of water with the existing shallow well supplying backup. This modification was necessary due to the declining performance from the existing shallow well making it unreliable. The new well was drilled to a depth of 854 feet below the surface into the Eminence Dolomite formation of the Ozark Providence Aquifer.
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I 5.4.2 Evaluation of Change The installation of this well did not result in a significant increase in any adverse environmental impact, since all measurable non-radiological environmental effects were confined to areas previously disturbed during plant construction. No cultural resources are located in the area.
The well was located, drilled / installed, and connected to existing piping per the Missouri Department of Natural Resource Statutes for well construction.
The use ofground water during operation of the plant was previously evaluated by Earth Technology Corp. Their evaluation concluded that use of the Eminence l
Dolomite of the Ozark Providence Aquifer as an additional water supply would have no adverse impact on regional water use based on its proximity to the Missouri River alluvial which provides adequate recharge.
Therefore, this change did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
5.5 Plant Procedure CTP-BB-ST001. Revision 0 5.5.1 Description of Change Procedure CTP-BB-ST001 was prepared to allow the addition of ammonia to the reactor coolant system to help achieve AOA recovery. Ammonia is used to complex nickel from the corrosion deposit matrix and/or reduce existing nickel oxide to nickel metal.
5.5.2 Evaluation of Change Ammonia is added directly to the reactor coolant in steps of approximately 0.5 ppm until equilibrium is reached. The frequency of ammonia addition is determined by the amount necessary to achieve the desired concentration of I-2 ppm up to a maximum of 10 ppm.
l The ammonia additions result in additional production of H-3 and C-14. The environmentalimpact evaluation of the release of these two nuclides showed no significant increase in dose to the public.
Therefore, this change did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
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5.6 Plant Procedure CTP-EF-06105. Revision 0 5.6.1 Descrintion of Change This procedure was prepared to allow chemical treatment of the ultimate heat sink pond to control algae. The procedure provides instructions for either bulk water treatment or shoreline treatment of the UHS pond on an as needed basis, but generally less than five times per year to control algae growth.
! 5.6.2 Evaluatica of Change The bulk water treatment for the UHS pond includes 1000 gallons of NaOCL and 440 gallons of BULAB 6002. The maximum allowed treatment is 3408 gallons of NaOCL and 2502 gallons of BULAB 6002. The essential service water pumps are operated for a minimum of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and preferably 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> during the treatment. The maximum treatments are based on satisfying the existing NPDES permit limits for free available chlorine of 0.2 ppm and for BULAB 6002 of 1.2 ppm as product.
For shoreline treatment, BULAB 6002 or Cutrine Plus is added at a rate of I gallon per 40 feet of shoreline. The maximum treatment is 50 gallons of BULAB 6002 or Cutrine Plus per day. Cutrine Plus is a copper alkanolamine complex that contains 9%
copper and less than 50% ethanolamine. Each of these components was included in I the existing NPDES permit reapplication. The maximum amount of copper expected in the discharge from this treatment would be less than 2 ppb which is within the current limit.
The Missouri Department of Natural Resources was notified of the use of these I biocides in past correspondence and had no objections. Therefore, this change did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
5.7 Plant Procedure CTP-KC-06001. Revision 1 5.7.1 Description of Change This procedure revision allows the addition of diphosphonic acid (HEDP) to the Fire Protection Storage Tanks to mitigate calcium carbonate scale on t! e tank heaters.
This product also known as BULAB 7016, is currently added to the circulating / service water system as a scale inhibiter.
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5.7.2 Evaluation of Change )
I BULAB 7016 is added to the Fire Protection Storage Tanks to maintain a i concentration ef approximately 1 ppm as product. Two liters of BULAB 7016 was initially added to the fire protection sump and an additional 100 millilite:s of BULAB 7016 is added weekly to maintain the required concentration. Only a .ninor residual of the BULAB 7016 is expected to be present in the water discharged d 2 ring fire water system flushes and testing to the site stormwater. The e discharges are not expected to have a significant effect on the quality of the water from stormwater outfalls 010, 011, and 012. In addition flushes of the fire protection system did not result in an aquatic toxicity condition in the stormwater outfalls The Missouri Department of Natural Resources was notified in writing of this additional treatment and had no objection. Therefore, this change did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
5.8 Plant Procedure CTP-ZZ-06000. Revision 1 5.8.1 Descrintion of Change This procedure change allows the use of BULAB 6086, a melluscicide, to treat the clearwell for Asiatic clams. This product contains 50% Alkyl *dimethylbenzyl- g ammonium chloride (a quaternary ammonium amine based molluscicide). E 5.8.2 Evaluation of Change BULAB 6086 is added to the water treatment plant clarifier effluent from one to four times per year to a target concentration of 13 ppm as product. The treated water is j allowed to soak for approximately 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to provide maximum effectiveness. This j procedure is performed during plant intake outages or other periods oflow flow through the Water Treatment Plant. If treated during low flow conditions, an additional 55 gallons of BULAB 6086 is fed at a rate of 300 mis / min Before addition, l I the cooling tower makeup bypass valve is closed to prevent the relea:a of this product l directly to the plant di#.arge line. This valve remains closed for three hours after the treatment is completed to allow the treated water to be routed to the cooling tower as makeup. There should be no detectable free active chemical released from cooling tower blowdown due to detoxification by the clay and dilution by water volume in cooling tower basin.
The Missouri Department of Natural Resouices was notified in writing of the additional treatment and had no objections. Therefore, this change did not constitute an unreviewed environmental question per Section 3.1 of Appendix B to the Callaway Plant Operating License.
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