3F0423-03, 2022 Annual Radiological Environmental Operating Report
| ML23108A266 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 04/18/2023 |
| From: | Dixon P ADP CR3 |
| To: | Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| 3F0423-03 | |
| Download: ML23108A266 (1) | |
Text
April 18, 2023 3F0423-03 ADPCR3,LLC U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Crystal River Nuclear Plant 2760 South Falkenburg Rd Riverview, FL 33578 Docket 50-302 Docket 72-1035 Operating License No. DPR-72 ODCM
Subject:
Crystal River Unit 3 - 2022 Annual Radiological Environmental Operating Report
Dear Sir or Madam:
ADP CR3, LLC hereby provides the 2022 Annual Radiological Environmental Operating Report for Crystal River Unit 3 in accordance with the Offsite Dose Calculation Manual (ODCM). The data provided in the attached report is consistent with the objectives outlined in the ODCM and includes all radiological environmental samples taken during the report period from January 1, 2022 through December 31, 2022.
This letter contains no new regulatory commitments.
If you have any questions regarding this submittal, please contact Ms. Holly Van Sicklen, Licensing Manager, at (352) 634-1028.
Sincerely,
~A~
Phyllis A. Dixon ISFSI Manager PAD/hvs : 2022 Annual Radiological Environmental Operating Report cc:
NMSS Project Manager Regional Administrator, Region I
ADP CR3, LLC DOCKET NUMBER 50-302 / 72-1035 LICENSE NUMBER DPR-72 ATTACHMENT 1 2022 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT
ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 2022 ADP CR3, LLC CRYSTAL RIVER UNIT 3
i TABLE OF CONTENTS Introduction............................................................................................................ ii I.
Summary Description of the Radiological Environmental Monitoring Program................................................................................................ 1 II.
Land-Use Census................................................................................................ 10 III.
Interlaboratory Comparison Program................................................................... 11 IV.
Analytical Results................................................................................................. 12 A. Airborne Pathway.......................................................................................... 12 Statistical Summary....................................................................................... 13 B. Direct Radiation............................................................................................. 20 Statistical Summary....................................................................................... 21 C. Waterborne Pathway..................................................................................... 24
- 1. Seawater................................................................................................. 24 Statistical Summary................................................................................ 27
- 2. Ground Water.......................................................................................... 24 Statistical Summary................................................................................ 34
- 3. Site Ground Water.................................................................................. 24 Statistical Summary................................................................................ 53
- 4. Site Ground Water Non-REMP.............................................................. 25 Statistical Summary................................................................................ 53
- 5. Drinking Water........................................................................................ 25 Statistical Summary................................................................................ 58
- 6. Shoreline Sediment................................................................................. 26 Statistical Summary................................................................................ 61
- 7. NEI 07-07 Evaluation............................................................................. 26 D. Ingestion Pathway......................................................................................... 64
- 1. Carnivorous Fish..................................................................................... 64 Statistical Summary................................................................................ 67
- 2. Oysters.................................................................................................... 64 Statistical Summary................................................................................ 70
- 3. Broad Leaf Vegetation............................................................................ 64 Statistical Summary................................................................................ 75
- 4. Watermelon, Milk and Citrus................................................................... 65 Statistical Summary................................................................................ 78
ii INTRODUCTION This report is submitted as required by procedure CP-500: Special Actions and Reporting Requirements, Section 4.2.1.a, and the Offsite Dose Calculation Manual (ODCM).
The following information is required to be included in this report:
- Data Summaries
- Interpretations
- Unachievable LLDs
- An analysis of trends
- An assessment of any observed impact of plant operation on the environment NOTE:
If harmful effects or evidence of irreversible damage are detected by the monitoring, the report shall provide an analysis of the problem and a planned course of action to correct it.
- Summarized and tabulated results of all radiological environmental samples taken during the report period, in the format of Radiological Assessment Branch Technical Position, Revision 1, November 1979.
NOTE:
If some results are not available for inclusion, the report shall note and explain the reason for the missing results. The missing results shall be submitted as soon as possible in a supplementary report.
- A summary description of the Radiological Environmental Monitoring Program.
- A map of all sampling locations keyed to a table giving distances and directions from the reactor.
- Land-use census results.
- Inter-laboratory Comparison Program results.
- A discussion of airborne sample station availability.
- Results of any unplanned release or spill of radioactive material that could have the potential to contaminate the groundwater as reported to maintain compliance with the groundwater protection initiative (NEI 07-07).
Additional Information On February 5, 2013, Duke Energy decided to permanently retire Crystal River Unit 3. The decision was made due to the risk associated with repairing the containment buildings delaminated concrete wall. The company placed the facility in a SAFSTOR status until Sept 30th, 2020. Beginning on October 1st, 2020, the site radiological license was transferred from Duke Energy to ADP CR3, LLC and active decommissioning commenced. Also in 2020, CR3 received approval from the NRC to reduce the licensed area of the site to 884 acres as part of the Partial Site Release project. This had no effect on any REMP sample location or REMP sample frequency. Additionally, all spent nuclear fuel was transferred from the spent fuel pool to the onsite Independent Spent Fuel Storage Installation (ISFSI) for dry storage in January 2018 and most plant systems have been abandoned.
1 I.
SUMMARY
DESCRIPTION OF THE RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM The analytical results of the Crystal River Unit 3 (CR-3) operational Radiological Environmental Monitoring Program (REMP) for 2022 are contained in this report. The operational program began on January 1, 1977, just prior to initial criticality, which was achieved on January 14, 1977.
Sampling of the facility environs is performed by the State of Florida Department of Health, Bureau of Radiation Control. The State also performs the required analyses, participates in the Interlaboratory Comparison Program, and performs the annual land-use census. Prior to 1990, the program was split between the Department of Health and the University of Florida.
Sample station locations are given in Table I-1 and Figures I-2, I-3 and I-4. Sample frequency and analysis type is shown on Table I-2. Figure I-1 illustrates the relevant exposure pathways. Regarding waterborne pathways, the groundwater area of the Crystal River site is too saline to be used as a source of drinking water, hence there is no credible drinking water intake pathway. Additionally, the Florida aquifer groundwater flows in a west-southwest direction across the site toward the Gulf of Mexico, and since the location of the site is along the coast, there is no downstream public impact regarding groundwater.
Except for air sample gross beta results and direct radiation measurements, most of the analytical results are below the lower limit of detection (LLD) of the sample. Sample LLDs are generally much lower than the required "a priori" LLD listed in the ODCM. When measurable results are reported, the values are also usually less than the required "a priori" LLD.
Trace levels of Cs-137 are still occasionally seen in vegetation samples due to past global fallout. The vegetation control sample station located in Orlando Florida is also experiencing similar Cs-137 deposition on the broad leaf sample media. Traces of Cs-137 can also be detected occasionally in soil/sediment for the same reason.
The results of the 2022 REMP samples have been compared to previous years' results. This comparison, in part illustrated by the trend graphs of Section IV, shows no evidence of consistent long-term increasing trends in any of the sample media. However, CR3 plant related radioactive material is occasionally quantified in sediment samples which are taken in the discharge canal near the liquid release discharge point. In general, these results verify the effectiveness of in-plant measures for controlling radioactive releases.
Trend graphs illustrate the mean measured concentration of a particular radionuclide for the year. When measurable results are not obtained, the highest sample LLD is plotted. LLD and measured values are plotted on the same line to best illustrate any trend.
Statistical summary pages are provided for each medium or pathway. Measured values are reported in terms of a mean and range. In addition, the number of measured values versus samples obtained is reported. For example, in the following entry.
15 (249/256)
(4 - 35) the "All Indicator Locations" column would be interpreted as indicating a mean measured value of 15, with measured values ranging from 4 to 35. (249/256) means that out of 256 samples, 249 were measured values above LLD.
2 TABLE I-1 ADP CR3, LLC-2022 SAMPLE STATION LOCATIONS SAMPLE MEDIA STATION ID DIRECTION APPROX. DISTANCE (Miles)
TLD - on-site C60 N
0.88 C61 NNE 0.92 C62 NE 1.17 C63 ENE 0.87 C64 E
0.80 C65 ESE 0.33 C66 SE 0.36 C67 SSE 0.33 C68 S
0.27 C69 SSW 0.31 C41 SW 0.43 C70 WSW 0.74 C71 WNW 0.58 C72 NW 0.30 C73 NNW 0.74 C27 W
0.41 TLD - off-site C18 N
5.3 C03 NNE 4.89 C04 NE 5.95 C74 ENE 5.13 C75 E
3.99 C76 ESE 5.61 C08 SE 5.66 C77 SSE 3.39 C09 S
3.23 C14G W
2.0 C01 NW 4.8 C79 NNW 4.97 C47-Control ESE 78 C07*
ESE 7.67 C40*
E 3.48 C46*
N 0.37
- TLDs not required by ODCM. Deployed at air sample locations.
3 TABLE I-1 (CONT'D)
ADP CR3, LLC-2022 SAMPLE STATION LOCATIONS SAMPLE MEDIA STATION ID DIRECTION DISTANCE (Miles)
AIR C07 ESE 7.7 C18 N
5.3 C40 E
3.5 C41 SW 0.4 C46 N
0.4 C47-Control ESE 78 SEAWATER C14H NW 0.1 C14G W
2.0 C13-Control WSW 3.4 GROUND WATER SITE GROUND WATER C40-Control CR3-1 CR3-2 CR3-3S and 3D CR3-4 CR3-5 CR3-6S CR3-6D CR3-7 CR3-8 CR3-9 CR3-10 E
E E
W WNW WNW NW NNE 3.7 0.1 0.1 0.1 0.1 0.05 0.04 0.04 0.06 0.07 0.1 0.1 DRINKING WATER C07-Control ESE 7.4 C10-Control ESE 6.0 C18-Control N
5.3 SHORELINE SEDIMENT C09-Control S
3.2 C14H NW 0.1 C14M W
1.2 C14G W
2.0 FISH & OYSTERS C29 W
2.5 C30-Control WSW 3.4 BROAD LEAF VEGETATION C48A N
0.4 C48B ENE 0.9 C47-Control ESE 78 WATERMELON C04 NE 6.0 CITRUS C19 ENE 9.6
4 TABLE I-2 ADP CR3, LLC-2022 SAMPLING AND ANALYSIS PROGRAM SAMPLE MEDIA
- OF STATIONS FREQUENCY ANALYSIS LLD1 TLD 32*
Quarterly Dose Air Particulate 6
Weekly Gross 0.01 pCi/m3 Quarterly Spec :
Cs-134 0.05b Cs-137 0.06b Seawater 3
Monthly Tritium 2000a pCi/L Monthly Spec :
Co-60 15 Cs-134 15 Cs-137 18 Ground Water 1
Semiannual Tritium 2000a pCi/L Semiannual Spec :
2 2
Site Ground Water3 Drinking Water 10 3
Quarterly Quarterly Quarterly Tritium Spec :
Tritium 2
2000a pCi/L 2
2000a pCi/L Quarterly Spec :
2 2
Shoreline Sediment 4
Semiannual Spec :
Cs-134 150 pCi/kg Cs-137 180
- Includes 3 stations which are not required by the ODCM 1 The maximum "a priori" LLD listed in the ODCM 2 Same as Seawater Spec 3 Additional 2 stations reported that are not required by the ODCM a LLD for drinking water. If no drinking water pathway exists, a value of 3000 pCi/L may be used b LLDs apply only to quarterly composite gamma spectral analysis, not to analyses of single particulate filters
5 TABLE I-2 (Cont'd)
ADP CR3, LLC-2022 SAMPLING AND ANALYSIS PROGRAM SAMPLE MEDIA
- OF STATIONS FREQUENCY ANALYSIS LLD1 Carnivorous Fish 2
Quarterly Spec :
Co-60 130 pCi/kg and Oysters Cs-134 130 Cs-137 150 Broad Leaf Vegetation 3
Monthly3 Spec :
Cs-134 60 Cs-137 80 Watermelon 1
Annual4 Spec :
5 5
Citrus 1
Annual4 Spec :
5 5
1 The maximum "a priori" LLD 2 ---Not Used ---
3 When available 4 During harvest 5 Same as broad leaf vegetation
6 Airborne Releases Liquid Releases External Radiation Seawater Ground Water Sediments Drinking Water Aquatic Animals Food Crops n
FIGURE I-1: Environmental Media and Exposure Pathways Air Ground Water Drinking Water Food Crops External Radiation Sediments Aquatic Animals Seawater Man
7 FIGURE I-2: Environmental Monitoring Sample Stations (non-TLDs) Outlying Areas
8 Figure I-3 Environmental Monitoring Locations Site and Adjacent Areas
9 Figure I-4: CR3 Groundwater Monitoring Well Locations Deep Wells Are Also Installed at #s 1, 3, 6
10 II. LAND-USE CENSUS A 2022 land-use census was conducted in June. The purpose of the census is to identify the nearest residences, vegetable gardens, and potential milk-producing animals within a five-mile radius of the nuclear plant. The distance in miles and bearing in degrees for each receptor type in each of the sixteen sectors is summarized below. No milk-producing animals were found within a 5-mile radius of the plant, same as 2021.
One new garden area was found ENE at 4.4 miles of CR3 in 2022 but nothing was planted at the time of the survey.
SECTOR NEAREST RESIDENCE NEAREST GARDEN (A)
NEAREST MILK ANIMAL N
4.5 @ 2º NNE 4.6 @ 15º NE 3.8 @ 54º ENE 4.4 @ 76º 4.4
WNW NW 4.8 @ 321° NNW 4.6 @ 339º (A) - Only gardens with an estimated total area of 500 square feet, or more, and producing green leafy vegetables are considered.
- No suitable sites were located within 5 miles.
- Not a permanent resident but occupied intermittently by various DEP personal
11 III.
FLORIDA DEPARTMENT OF HEALTH - INTERLABORATORY COMPARISON PROGRAM DATA The EPA crosscheck program ceased operation at the end of 1998. To meet the requirements for a crosscheck program, the Florida Department of Health participates in the Department of Energys Mixed-Analyte Performance Evaluation Program (MAPEP). For 2022, all results were within the indicated Acceptance Ranges, as shown below.
The following units are used for each of the four media:
Air Filters:
Bq/sample Soil:
Bq/Kg Vegetation:
Bq/sample Water:
Bq/L Analytical performance is based on historical analytical capabilities for individual analyte/matrix pairs.
Acceptable performance is designated by an "A".
Acceptable with warning is designated by a "W".
Performance which is not acceptable is designated by an "N".
MAPEP Results for August 2022:
Media Nuclide Result
% Bias Acceptance Range Flag Air Filter Cs-134 0.045 False Positive Test A
Air Filter Cs-137 1.593 4.1 1.07-1.99 A
Air Filter Zn-65 1.872 18.5 1.11-2.05 A
Air Filter Co-60 1.954
-1.8 1.39-2.59 A
Air Filter Mn-54 2.029 7.9 1.32-2.44 A
Soil Cs-134 641.82 2.4 439-815 A
Soil Cs-137 1.14 False Positive Test A
Soil Co-57 687.01
-12.6 550-1022 A
Soil Co-60 0.15 False Positive Test A
Soil Mn-54 828.11
-1.5 589-1093 A
Soil Zn-65 1156.63 1.5 798-1482 A
Vegetation Cs-134
-0.005 False Positive Test A
Vegetation Cs-137 1.189 9.8 0.758-1.408 A
Vegetation Co-57 0.002 False Positive Test A
Vegetation Co-60 4.776 3.4 3.23-6.01 A
Vegetation Mn-54 2.613 7.5 1.70-3.16 A
Vegetation Zn-65 8.217 9.7 5.24-9.74 A
Water Cs-134 16.178
-5.4 12.0-22.2 A
Water Cs-137 16.71
-0.5 11.8-21.8 A
Water Co-60 16.462
-3.2 11.9-22.1 A
Water Mn-54 0.198 False Positive Test A
Water Zn-65 11.824 4.6 7.9-14.7 A
Water H-3 567.7 1.4 488.3-614.1 A
12 IV-A. AIRBORNE PATHWAY Air samples are taken at five locations near the plant. The control location (station C-47) is 78 miles ESE of the plant, at the Department of Health, State Bureau of Radiation Control, in Orlando.
Table IV-A.1 provides a statistical summary of the analytical results for 308 gross beta samples.
Tables IV-A.2 and IV-A.3 provide the results for each weekly air sample.
In 2022, 308 particulate samples were analyzed for gross beta activity, and all 308 had measurable activity above LLD. The average indicator concentration for collected samples was 18 pCi/1000 m3 with a range of 3 to 39 pCi/1000 m3. In 2021 the average value was 18 pCi/1000 m3 and in 2020 it was 16 pCi/1000 m3. The average indicator concentration since 1996 has been in the range of 14 to 24 pCi/1000 m3. The control location concentration for 2022 averaged 16 pCi/1000 m3, with a range of 5 to 25 pCi/1000 m3. The control location in 2021 averaged 16 pCi/1000 m3. In 2022, location C18 had the highest yearly indicator concentration at 19 pCi/1000 m3. C18 was also the highest location in 2021, with an average of 20 pCi/1000 m3. Air sample locations C40, C41 and C46 were relocated about 100 meters or less to new sample hutches in August to enable hook up to new onsite power sources. These moves were necessitated by changing site conditions due to the decommissioning of CR3 and coal units 1 and 2.
Quarterly composite data are summarized in Table IV-A.3. In 2022, measurable quantities of cesium were not identified in any particulate filter sample. The highest cesium-137 LLD was 1.0 pCi/1000 m3, versus 1.7 pCi/1000 m3 in 2021.
The 2022 airborne sample data is comparable with previous years sample data with exception of samples collected in 2011 during the March and April time frame where airborne particulate and iodine samples were affected by the Fukushima earthquake and tsunami event that occurred on March 11, 2011. Those sample data were thoroughly discussed in the 2011 Annual Radiological Environmental Operating Report submitted for Crystal River Unit 3.
There were threeinstances of weekly air samples that were not collected. They were identified during the routine weekly sample change-outs and documented in Certrec Condition Report 2022000004: REMP Program Tracking for 2022.
- 1. C41: 4-Jan - Power outage at site.
- 2. C46: 16-Aug: Filter not present.
- 3. C40: 23-Aug - Pump Malfunction.
The yearly percentages of missed or partial air samples (3) was 1.2 % of the total indicator samples (260).
13 TABLE IV-A.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS AIRBORNE Gross 309 10 18 (257/257)
C18 19 (52/52) 16 (52/52) 0 PARTICULATES (3-39) 5.3 miles North (6-36)
(5-25)
(pCi/1000m3 for Spec 24 Gross,
pCi/1000m3 for Cs-134 50
<LLD
<LLD 0
Spec)
Cs-137 60
<LLD
<LLD 0
1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
14 TABLE IV-A.2 ADP CR3, LLC - 2022 pCi/1000 m3 GROSS BETA IN AIR SAMPLE SITE Collection Date C07 C18 C40 C41 C46 C47 04-Jan-22 14 16 15 16 15 11-Jan-22 18 20 18 16 19 18 18-Jan-22 23 23 22 27 17 22 25-Jan-22 24 29 26 24 22 22 01-Feb-22 26 31 24 27 22 21 08-Feb-22 17 17 13 14 15 10 15-Feb-22 25 25 28 26 27 20 22-Feb-22 19 21 16 21 15 18 01-Mar-22 13 17 19 14 16 12 08-Mar-22 26 21 25 25 25 18 14-Mar-22 9
6 12 11 12 12 21-Mar-22 18 14 12 14 16 13 30-Mar-22 20 20 20 19 17 17 Average:
19 20 19 20 18 17
- No power at site during this period
15 TABLE IV-A.2 (Contd)
ADP CR3, LLC - 2022 pCi/1000 m3 GROSS BETA IN AIR SAMPLE SITE Collection Date C07 C18 C40 C41 C46 C47 06-Apr-22 17 17 18 20 19 17 12-Apr-22 20 14 18 20 16 14 19-Apr-22 12 10 10 10 12 12 25-Apr-22 24 25 21 23 23 20 03-May-22 22 20 22 20 20 21 10-May-22 16 17 14 13 14 15 18-May-22 16 24 19 21 19 15 24-May-22 22 24 20 24 19 13 31-May-22 21 25 17 20 17 25 06-Jun-22 10 9
11 13 14 10 15-Jun-22 14 15 15 15 11 13 21-Jun-22 21 24 24 23 28 17 29-Jun-22 18 19 15 11 16 17 Average 18 19 17 18 18 16
16 TABLE IV-A.2 (Cont'd)
ADP CR3, LLC - 2022 pCi/1000 m3 GROSS BETA IN AIR SAMPLE SITE Collection Date C07 C18 C40 C41 C46 C47 05-Jul-22 6
12 11 6
5 6
13-Jul-22 9
12 11 10 11 7
19-Jul-22 14 16 10 17 10 10 26-Jul-22 17 12 16 13 15 11 02-Aug-22 16 22 18 13 15 18 08-Aug-22 14 15 11 10 14 12 16-Aug-22 25 15 11 10 14 23-Aug-22 26 25 26 12 19 31-Aug-22 6
6 7
5 6
5 06-Sep-22 9
8 9
9 6
9 13-Sep-22 3
6 5
10 7
10 20-Sep-22 10 12 12 8
10 9
27-Sep-22 27 25 24 25 20 19 Average 14 14 12 12 11 11
- Not Collected - pump malfunction
- Not collected as filter not present
17 TABLE IV-A.2 (Cont'd)
ADP CR3, LLC - 2022 pCi/1000 m3 GROSS BETA IN AIR SAMPLE SITE Collection Date C07 C18 C40 C41 C46 C47 04-Oct-22 17 23 18 21 20 12 11-Oct-22 33 36 36 33 39 25 18-Oct-22 23 23 24 24 30 25 24-Oct-22 23 26 24 20 25 25 31-Oct-22 16 19 19 18 21 15 08-Nov-22 16 18 21 21 20 15 16-Nov-22 18 18 26 28 19 17 22-Nov-22 25 18 26 28 26 17 29-Nov-22 19 21 25 23 23 19 05-Dec-22 20 22 22 23 22 19 13-Dec-22 20 19 22 23 22 19 21-Dec-22 26 28 24 28 23 19 27-Dec-22 24 25 18 18 22 23 Average 22 23 23 24 24 19
18 TABLE IV-A.3 ADP CR3, LLC - 2022 pCi/1000 m3 GAMMA EMITTERS IN QUARTERLY COMPOSITES OF AIR PARTICULATES STATION NUCLIDE FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER C07 Be-7 87 133 152 120 K-40
<9
<14
<13
<13 Cs-134
<1.1
<1.3
<1.3
<1.1 Cs-137
<0.7
<0.9
<0.9
<0.6 C18 Be-7 146 126 85 158 K-40
<15
<22
<16
<16 Cs-134
<0.7
<0.9
<0.8
<1.1 Cs-137
<0.7
<0.9
<0.8
<0.9 C40 Be-7 93 152 116 178 K-40
<11
<14
<18
<16 Cs-134
<1.2
<1.2
<0.9
<1.1 Cs-137
<0.9
<0.9
<0.7
<0.9 C41 Be-7 137 141 123 107 K-40
<17
<18
<12
<18 Cs-134
<1.2
<1
<0.8
<1.1 Cs-137
<0.8
<0.8
<0.8
<0.9 C46 Be-7 66 141 123 114 K-40
<17
<14
<13
<16 Cs-134
<0.8
<1.1
<1
<1 Cs-137
<0.6
<0.6
<0.8
<0.8 C47 Be-7 148 72 140 155 K-40
<14
<15
<19
<14 Cs-134
<1
<1
<1.1
<1.2 Cs-137
<1
<0.8
<1
<1
19
`
0.0001 0.001 0.01 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/m3 Airborne (highest values plotted)
Cs-137 LLD 2011 Measured Values due to Fukushima Event
20 IV-B. DIRECT RADIATION Direct radiation measurements (using TLDs) were taken at 31 locations surrounding the plant, and at one control location 78 miles from the site (C47). Of the 124 non-control quarterly TLDs, 120 were collected. Locations C14G and C70 could not be collected during the fourth quarter and location C79 could not be collected during the first and second quarters as they were missing.
Table IV-B provides a statistical summary of the analytical results for 120 non-control TLDs collected throughout the year.
Table IV-B.1 provides the results of the individual TLD measurements.
In 2022, the highest annual average on-site dose was 50.0 mrem at station C72 (NW of CR3 RB at 1600 feet). In 2021, the highest annual average on-site dose was 61 mrem at station C71 (WNW at 3600 feet). Location C71 was also the highest in 2020 at 55 mrem and in 2019 at 56 mrem. Station C72 is near the old helper cooling towers which are being demolished. The area around locations C71 and C72 is undergoing construction work associated with the Unit 1 & 2 coal plant demolition and other Duke Energy site improvement initiatives.
The highest annual average off-site dose was 40.2 mrem at station C40 (E at 3.5 miles). The highest annual average off-site dose in 2021 was 40 mrem at station C77 (SSE at 3.4 miles). C40 at 40 mrem was the highest offsite location in 2020. The control station (C47) average annual dose was 36.9 mrem in 2022 versus 36 mrem in 2021. The average for all stations (except control) was 37 mrem for 2022 versus 40 mrem for 2021. Direct radiation results in 2022 are like previous results and do not show any indication of a trend.
The Independent Spent Fuel Storage Installation (ISFSI) was loaded with spent fuel beginning June 2017 and completed January 2018. Calculations performed prior to fuel movement into dry storage, derived a conservative dose rate at ~ 400 meters from the ISFSI pad of ~ 2.0 E-4 mrem/h gamma plus neutron (Ref. N16-0003, Table 11-27). The gamma component contributes most of the dose. Greater than class C waste, stored at the ISFSI in May 2018, has a much lower gamma dose rate (Ref. N18-0002). The combined dose at 400 meters is
~ 0.4 mrem for 90 days of exposure. 90 days is the approximate exposure period for REMP TLDs, and 400 meters is the approximate nearest distance from the ISFIS pad (center) for any of the REMP TLDs (e.g. C65). A review of quarterly TLD results shows that normal quarter to quarter variation in dose is greater than the dose increment due to ISFSI. Likewise, four of the REMP TLDs (C65, C66, C67, and C68) most likely to be influenced by the ISFSI based on no discernable step change increases in annual dose over the period of 2018 through 2022 when compared to the period of 2014 through mid-2017.
21 TABLE IV-B RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)
ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS DIRECT RADIATION (mrem/yr)
DOSE, 124 15 37 (120/120)
(24 - 73)
C72 50 (4/4) 0.3 @NW (32 - 73) 34 (4/4)
(30 - 43) 0
22 TABLE IV-B.1 ADP CR3, LLC-2022 Annual Gamma () Dose (mrem)
TLD STATION Quarter 1
2 3
4 C01 38 26 28 26 C03 39 26 29 28 C04 39 27 29 28 C07*
38 29 28 28 C08 37 29 27 27 C09 40 26 27 C14G 46 32 34 C18 41 32 31 29 C27 53 39 39 38 C40*
51 40 38 32 C41 46 34 33 35 C46*
48 38 36 34 C47 (CONTROL) 43 31 31 30 C60 46 34 34 33 C61 51 39 36 35 C62 53 38 37 37 C63 50 37 35 26 C64 45 36 33 28 C65 55 45 41 28 C66 49 38 37 28 C67 53 39 38 26 C68 49 36 35 27 C69 52 39 38 C70 62 46 45 29 C71 51 37 51 39 C72 73 59 35 32 C73 46 35 33 34 C74 38 25 26 34 C75 45 33 32 31 C76 42 28 30 33 C77 36 25 24 35 C79 38 29 38
- TLDs not required by ODCM
- Missing
23 0.0001 0.001 0.01 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/m3 Airborne (highest values plotted)
Cs-137 LLD 2011 Measured Values due to Fukushima Event See CR 684849
24 IV-C. WATERBORNE PATHWAY To evaluate the waterborne pathway, samples are taken of seawater, groundwater, drinking water, and shoreline sediment.
- 1. Monthly seawater grab samples are taken at two locations in the discharge canal (C14G and C14H) and at one control location (C13) near the mouth of the intake canal. In 2022, of twenty-four indicator samples, one had measurable tritium. The April 6th sample at location C14H at the head of the discharge canal showed tritium above LLD at 496 pCi/liter. A permitted liquid effluent discharge was made four days before the sample collection and was the source of the measured tritium.
Gamma spectral analysis was performed on all thirty-six samples, (including the 12 control samples at C13) and none of them showed measurable amounts of the gamma emitters of licensed CR3 radionuclides.
Table IV-C.1 provides a statistical summary of the seawater tritium and gamma spectroscopy results.
Table IV-C.1.a provides the results of the monthly samples.
- 2. Semiannual ground water samples are taken at one location, station C40, located approximately 3.7 miles east of CR-3 at well station #12. It is taken as a reference background and is up gradient from CR3. Gamma spectral and tritium analyses are performed. In 2022, all results were less than the detection limits. Since plant startup, all results, except for the results of one 1985 tritium analysis, have been less than LLD. The ODCM required sensitivity for measuring tritium in groundwater is 2000 pCi/L. Analysis of groundwater in the vicinity of CR-3 is done at a sensitivity of approximately 170 pCi/L for tritium and less than 10 pCi/L for select gamma emitters. The C40 groundwater sample is taken from pump #12.
Table IV-C.2 provides a statistical summary of the groundwater tritium and gamma spectroscopy results.
Table IV-C.2.a provides the results of the semi-annual samples.
- 3. Quarterly site groundwater samples are taken at thirteen locations surrounding the perimeter of the CR-3 protected area (See Figure 1-4). Historically five of these groundwater wells have shown indications of very low levels of tritium on the west-southwest side of the plant. It is believed that this tritium is the result of a leak in the Station Drain Tank (SDT-1) to the settling pond discharge line that occurred in 1998. This discharge line has recently been leak tested and it is leak free. There are no other known leaking plant components.
In 2022, one groundwater well - CR3 continued to show tritium at very low concentrations above LLD, same as in 2021. One of the two collected samples from CR3-5 showed a value of 171 pCi/liter. The other was less than LLD. It was inaccessible for two quarters due to demolition work. Well CR3-5 had an average tritium concentration of 183 pCi/L in 2021 based on all four quarterly samples. It showed an average of 227 pCi/l in 2020. No other groundwater wells showed greater than LLD tritium in 2022.
Along with these wells, two other wells that are not presently part of the REMP program were sampled. They are on either side (north and south) of the plant settling ponds (percolation ponds) and are referred to as MWC-27 and MWC-IF2. Both wells did not show tritium concentrations above LLD levels in 2022, same as in 2021.
Due to ongoing site demolition work, and flooding in the first quarter, several well samples could not be obtained in 2022. This is documented in Condition Report (CR) 2022000004. The following groundwater well samples could not be collected in 2022: First quarter: CR3-1S, CR3-1D, CR3-2 and CR3-9; Third quarter: CR3-2, CR3-5, CR3-6D and CR3-6S; Fourth Quarter: CR3-2, CR3-5 and CR3-8.
25 IV-C. WATERBORNE PATHWAY Contd There have been no measurable amounts of gamma emitting radionuclides in any of these wells. There have also been no measurable amounts of hard-to-detect (HTD) radionuclides in any of these wells with exception of trace levels of gross alpha, which is expected, given the naturally occurring limestone strata that surrounds the Florida aquifer. As already noted, site ground water flows in a west-southwest direction toward the Gulf of Mexico. This flow was re-verified in 2022, after the ISFSI pad sub-surface construction was completed, with a new ground water flow study It is noted that groundwater at the CR3 site is too saline for use as a potable water source, hence there is no drinking water intake pathway at the Crystal River site.
Table IV-C.3 provides a statistical summary of the groundwater tritium and gamma spectroscopy results.
Table IV-C.3.a.1 provides the results of the quarterly samples.
- 4. Quarterly non-REMP required well samples at two locations were collected as discussed in item #3 above.
These two wells are located on the north side and the south side of the site percolation ponds. The information is discussed above. Both wells showed no measurable amounts of any other gamma emitting radionuclides of concern. The tritium concentration in these wells, have decreased significantly due to a focused reduction in the number of discharges from the station drain tank (SDT-1) to the site settling ponds (percolation ponds) and are now less than the minimum detection limit. Note: The first and fourth quarter samples from well MIF2 were not available due to nearby construction work.
Table IV-C.4 provides a statistical summary of the groundwater tritium and gamma spectroscopy results.
Table IV-C.4.a provides the results of the supplemental non-REMP required samples.
- 5. Quarterly drinking water samples are drawn from three locations: the Crystal River City Hall (C07), the Days Inn Motel (C10), and the Yankeetown City Well (C18). All samples were collected and analyzed for gamma emitters and tritium. All samples are Control samples.
In 2022, none of the samples yielded measurable activities of tritium or the required gamma emitters, same as in 2021. The measurement sensitivity for drinking water samples is the same as those for ground water samples.
Since the beginning of sampling, the drinking water samples have not had any other positive-measured radionuclides of interest detected.
Table IV-C.5 provides a statistical summary of the drinking water tritium and gamma spectroscopy results.
Table IV-C.5.a provides the results of the quarterly samples.
26 IV-C. WATERBORNE PATHWAY Contd
- 6. Semiannual shoreline sediment samples are taken at three indicator locations in the discharge canal (C14H, C14M, C14G) and one control location (C09) at Fort Island Gulf Beach. The plant discharge canal is the primary liquid effluent release pathway from CR-3. In 2022, five of the six samples showed Cs-137 below LLD. The reported positive sample was at C14G at a concentration of 35 pCi/kg. Five of the six samples also showed Co-60 less than LLD, with the February 23rd sample from location C14H, at the head of the discharge canal, showing Co-60 at 143 pCi/kg. It is not unexpected to see licensed material in the discharge canal as CR3 still makes permitted liquid releases to the discharge canal. The 2022 results are similar to previous years results.
Table IV-C.6 provides a statistical summary of the shoreline sediment gamma spectroscopy results.
Table IV-C.6.a provides the results of the semi-annual samples.
- 7. There were no unmonitored spills or releases of radioactive material in 2022 that had the potential to contaminate the ground water per the guidelines of the Nuclear Energy Institute Ground Water Protection Initiative - Final Guidance Document 07-07. As such, there were no communiqués issued to state, local, or regulatory agencies.
27 TABLE IV-C.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS SEAWATER (pCi/L)
Tritium, 36 172 4962 C14H NW 0.1 mile 4962
<LLD 0
Spec, 36 Co-60 4
<LLD
<LLD 0
Cs-134 4
<LLD
<LLD 0
Cs-137 4
<LLD
<LLD 0
1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
2 Only one sample showed greater than LLD tritium - April 6th sample at location C14H
28 TABLE IV-C.1.a ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN SEAWATER STATION MONTH H-3 K-40 Co-60 Cs-134 Cs-137 C13 JAN*
<133 197+/-20
<4
<3
<4 FEB
<135 218+/-21
<4
<3
<4 MAR
<133 150+/-17
<4
<3
<3 APR
<134 289+/-35
<6
<5
<6 MAY
<132 262+/-35
<5
<5
<6 JUN
<198 252+/-25
<6
<5
<6 JUL
<136 203+/-21
<3
<4
<3 AUG
<136 277+/-34
<5
<5
<5 SEP
<131 276+/-33
<5
<5
<4 OCT
<128 268+/-23
<3
<3
<3 NOV
<128 330+/-36
<6
<6
<4 DEC**
<142 216+/-21
<3
<3
<3 C14G JAN
<137 221+/-31
<4
<4
<4 FEB
<133 204+/-20
<3
<3
<4 MAR
<135 205+/-22
<3
<3
<4 APR
<133 175+/-34
<6
<5
<5 MAY
<134 139+/-18
<4
<3
<4 JUN
<198 277+/-33
<6
<6
<6 JUL
<132 224+/-21
<3
<3
<4 AUG
<136 232+/-23
<3
<4
<3 SEP
<133 280+/-28
<6
<5
<6 OCT
<131 260+/-23
<3
<3
<4 NOV
<129 306+/-35
<5
<5
<6 DEC
<128 224+/-33
<5
<4
<6
29 TABLE IV-C.1a (CONT'D)
ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN SEAWATER STATION MONTH H-3 K-40 Co-60 Cs-134 Cs-137 C14H JAN
<137 188+/-20
<3
<4
<4 FEB
<133 235+/-22
<4
<3
<4 MAR
<135 226+/-21
<3
<3
<4 APR 496
<68
<3
<3
<4 MAY
<134 179+/-19
<7
<3
<4 JUN
<198 237+/-32
<7
<5
<6 JUL
<132 316+/-35
<4
<5
<5 AUG
<136 219+/-22
<3
<3
<3 SEP
<136 225+/-22
<3
<3
<3 OCT
<131 252+/-34
<5
<5
<5 NOV
<134 324+/-29
<4
<4
<4 DEC
<135 305+/-28
<4
<4
<4
- January sample collected 2/2/22
- December sample collected 1/4/23
30 1
10 100 1000 10000 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/Liter Seawater H-3 Cs-134 LLD Cs-137 LLD measured values
31 TABLE IV-C.2 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS GROUND Tritium, 2 172
<LLD 0
WATER2 (pCi/L)
Spec, 2 Co-60 4
<LLD 0
Cs-134 4
<LLD 0
Cs-137 4
<LLD 0
1 The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
2 There is no drinking water uptake pathway at the Crystal River site.
32 TABLE IV-C.2.a ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN GROUND WATER STATION NUCLIDE FIRST HALF SECOND HALF C40 H-3
<139
<137 Co-60
<3
<3 Cs-134
<3
<6 Cs-137
<4
<4 K-40
<40
<72
33 1
10 100 1000 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/L Semi-Annual Ground Water H-3 LLD Cs-137 LLD
34 TABLE IV-C.3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL (NUMBER)2 OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS CR3 SITE Tritium 41 172 171(1/46)
CR3-5 171(1/2) 3 0
GROUND WATER (171) 0.051 mi WSW (171)
(pCi/L)
Spec 46 Co-60 4
<LLD 0
Cs-134 4
<LLD 0
Cs-137 4
<LLD 0
1 The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
2 Includes extra samples collected for data trending.
3 REMP location C-40 is used as the background control reference
35 TABLE IV-C.3.a.1 ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 CR3-1D 04-25
<137
<57
<4
<5
<5 07-15
<132
<84
<6
<5
<5 10-21
<129
<50
<4
<4
<3 CR3-1S 04-25
<137
<46
<4
<3
<4 07-15
<132
<90
<6
<5
<5 10-21
<129
<64
<5
<5
<5 CR3-2 04-25
<137
<48
<4
<3
<4
36 TABLE IV-C.3.a.1 ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 CR3-3D 01-04
<132
<39
<3
<4
<3 04-25
<140 54+/-12
<4
<4
<5 07-15
<132
<82
<7
<6
<5 10-21
<129
<53
<3
<3
<4 CR3-3S 01-04
<132
<36
<3
<3
<3 04-25
<137
<47
<3
<3
<4 07-15
<132
<61
<5
<4
<5 10-21
<129
<86
<6
<5
<6 CR3-4 01-04
<132
<53
<4
<5
<5 04-25
<133
<52
<4
<4
<5 07-15
<132
<73
<5
<6
<6 10-21
<129
<44
<3
<4
<3
37 TABLE IV-C.3.a.1 ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 CR3-5 01-06 171 30+/-10
<5
<5
<5 04-25
<137 68+/-19
<5
<5
<7 CR3-6S 01-06
<133 154+/-13
<3
<3
<3 04-25
<140
<73
<6
<5
<5 10-21
<129
<97
<6
<5
<6 CR3-6D 01-06
<133 174+/-19
<3
<4
<4 04-25
<137 208+/-32
<5
<5
<5 10-21
<129
<62
<6
<5
<6
38 TABLE IV-C.3.a.1 (contd)
ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 CR3-7 01-06
<133
<51
<4
<4
<4 04-25
<140
<90
<6
<4
<5 07-15
<136
<64
<5
<5
<4 10-21
<129
<85
<6
<5
<4 CR3-8 01-06
<133
<56
<5
<5
<5 04-25
<140
<86
<6
<4
<6 07-15
<132
<53
<4
<4
<4 CR3-9 04-25
<140
<84
<5
<5
<6 07-15
<132
<70
<6
<5
<6 10-21
<129
<53
<4
<3
<4
39 TABLE IV-C.3.a.1 (contd)
ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 CR3-10 01-04
<133
<52
<4
<4
<4 04-25
<137
<46
<4
<5
<5 07-15
<136
<24
<4
<4
<4 10-21
<134
<72
<6
<5
<6
40 80 100 120 140 160 180 200 04/01/12 08/14/13 12/27/14 05/10/16 09/22/17 02/04/19 06/18/20 10/31/21 03/15/23 pCi/l Tritium Measurement GW Well # CR3-1S All results are < LLD since 2010
41 80 100 120 140 160 180 200 04/01/12 08/14/13 12/27/14 05/10/16 09/22/17 02/04/19 06/18/20 10/31/21 03/15/23 pCi/l Tritium Measurement GW Well # CR3-1D All results are < LLD
42 80 100 120 140 160 180 200 07/06/09 11/18/10 04/01/12 08/14/13 12/27/14 05/10/16 09/22/17 02/04/19 06/18/20 10/31/21 03/15/23 pCi/l Tritium Measurement GW Well # CR3-2 All results are < LLD
43 80 100 120 140 160 180 200 04/01/12 08/14/13 12/27/14 05/10/16 09/22/17 02/04/19 06/18/20 10/31/21 03/15/23 pCi/l Tritium Measurement GW Well # CR3-3S All results are < LLD unless noted
44 80 100 120 140 160 180 200 05/21/12 10/03/13 02/15/15 06/29/16 11/11/17 03/26/19 08/07/20 12/20/21 pCi/l Tritium Measurement GW Well # CR3-3D All results are < LLD
45 60 80 100 120 140 160 180 200 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurement GW Well # CR3-4 All results are < LLD since 2013
46 0
200 400 600 800 1000 1200 1400 1600 1800 2000 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurement GW Well # CR3-5 All results greater than LLD
47 60 80 100 120 140 160 180 200 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurement GW Well # CR3-6S Results after 2014 are < LLD
48 50 70 90 110 130 150 170 190 210 230 250 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurements GW Well # CR3-6D All results are < LLD after 2010
49 0
100 200 300 400 500 600 700 800 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 pCi/l Tritium Measurements GW Well # CR3-7 All measurements LLD after 2015
50 50 70 90 110 130 150 170 190 210 230 250 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurements GW Well # CR3-8 All measurments LLD after 2016
51 60 80 100 120 140 160 180 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurements GW Well # CR3-9 All measurements <LLD after 2013
52 60 80 100 120 140 160 180 200 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurements GW Well # CR3-10 All measurements LLD after 2012
53 TABLE IV-C.4 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS
- CR3 SITE Tritium 6 172
<LLD 0
GROUND WATER (pCi/L)
Spec 6 Co-60 4
<LLD 0
Cs-134 4
<LLD 0
Cs-137 4
<LLD 0
1 The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
- Non-REMP required samples (MWC-IF2, MWC-27)
- REMP location C-40 is the site background. All C-40 results are <LLD
54 TABLE IV-C.4.a ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER (SUPPLEMENTAL DATA)
STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 MWC-27*
01-04
<133 154+/-18
<4
<4
<4 04-25
<140 141+/-17
<4
<3
<4 07-15
<136 261+/-32
<6
<5
<5 10-21
<134 335+/-36
<6
<5
<7
- These wells are not officially included in the REMP and are located on either side (north and south) of the site percolation ponds.
55 TABLE IV-C.4.a (contd)
ADP CR3, LLC-2022 pCi/L EMITTERS AND TRITIUM IN CR3 SITE GROUND WATER (SUPPLEMENTAL DATA)
STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 MWC-IF2*
04-25
<140
<68
<6
<6
<6 07-15
<132
<26
<4
<4
<4
- These wells are not officially included in the REMP and are located on either side (north and south) of the site percolation ponds.
Note: Samples for first and fourth quarters were not available due to nearby construction work.
56 0
200 400 600 800 1000 1200 1400 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurements GW Well # MWC-27 All measurements LLD after 2010
57 0
100 200 300 400 500 600 10/10/06 07/06/09 04/01/12 12/27/14 09/22/17 06/18/20 03/15/23 pCi/l Tritium Measurements GW Well # MWC-IF2 All measurements LLD after 2012
58 TABLE IV-C.5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS DRINKING Tritium 12 172
<LLD 0
WATER (pCi/L)
Spec 12 Co-60 4
<LLD 0
Cs-134 4
<LLD 0
Cs-137 4
<LLD 0
1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
59 TABLE IV-C.5.a ADP CR3, LLC-2022 pCi/L GAMMA EMITTERS AND TRITIUM IN DRINKING WATER STATION DATE H-3 K-40 Co-60 Cs-134 Cs-137 C07 04-25
<137
<42
<3
<3
<3 07-07
<132
<40
<5
<3
<3 10-21
<130
<68
<5
<5
<5 01-04*
<142
<63
<4
<5
<6 C10 04-25
<137
<41
<3
<4
<4 07-07
<132
<33
<3
<3
<3 10-21
<130
<68
<6
<5
<5 01-04*
<142
<65
<4
<3
<4 C18 04-25
<137
<35
<3
<3
<4 07-07
<136
<56
<5
<4
<5 10-21
<130
<56
<4
<4
<5 01-04*
<142
<60
<4
<3
<4
- Taken January 2023
60 0.1 1
10 100 1000 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/Liter Quarterly Drinking Water H-3 LLD Cs-137 LLD
61 TABLE IV-C.6 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS SHORELINE Spec 8 SEDIMENT (pCi/kg)
Cs-134 7
<LLD
<LLD 0
Cs-137 7
35 (1/2)
C14G 2.0 @W 35 (1/2)
<LLD 0
35 Co-60 7
143 (1/2)
C14H 0.1 @NW 143 (1/2)
<LLD 0
143 1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
- Only one sample with >LLD
62 TABLE IV-C.6.a ADP CR3, LLC-2022 pCi/kg GAMMA EMITTERS IN SHORELINE SEDIMENT STATION PERIOD Co-60 Cs-134 Cs-137 K-40 C09 First Half
<8
<8
<9 383+/-58 Second Half
<8
<8
<9 204+/-34 C14H First Half 143+/-6
<12
<11 456+/-72 Second Half
<436*
<14
<18 866+/-63 C14M First Half
<24
<20
<22 1220+/-131 Second Half
<9
<10
<12
<135 C14G First Half
<18
<15 35+/-5 1640+/-94 Second Half
<10
<11
<12 92+/-22 C09 is the control station at Ft. Island Beach. C14H, C14M, & C14G are discharge canal stations.
- High MDA reported due to high background
63 1
10 100 1000 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/Kilogram Shoreline Sediment Cs-134 LLD Cs-137
64 IV-D. INGESTION PATHWAY To evaluate the ingestion pathway, samples are taken of fish, oysters, broad leaf vegetation, citrus, milk and watermelon.
- 1. Quarterly carnivorous fish samples were taken at two locations: C29 at the end of the discharge canal, and C30, the control location, near the mouth of the intake canal.
In 2022, none of the required radionuclides were found in measurable quantities. The highest Cs-137 LLD for stations C29 and C30 was 24 pCi/kg. Naturally occurring K-40 was quantified in all eight samples at an average concentration of 2,498 pCi/kg.
In 2021, none of the required radionuclides were found in measurable quantities.
In 2020, none of the required radionuclides were found in measurable quantities.
In 2019, none of the required radionuclides were found in measurable quantities.
In 2018, none of the required radionuclides were found in measurable quantities.
In 2017, none of the required radionuclides were found in measurable quantities.
In 2016, none of the required radionuclides were found in measurable quantities.
In 2015, none of the required radionuclides were found in measurable quantities.
Table IV-D.1 provides a statistical summary of the carnivorous fish gamma spectroscopy results.
Table IV-D.1.a provides the results of the quarterly samples.
- 2. Quarterly oyster samples were taken at the same locations as fish samples, C29 and C30.
In 2022, none of the required radionuclides were found in measurable quantities. Only two samples could be collected at location C30 and three sample at C29 due to lack of oysters.
In 2021, none of the required radionuclides were found in measurable quantities.
In 2020, none of the required radionuclides were found in measurable quantities.
In 2019, none of the required radionuclides were found in measurable quantities.
In 2018, none of the required radionuclides were found in measurable quantities.
In 2017, none of the required radionuclides were found in measurable quantities.
In 2016, none of the required radionuclides were found in measurable quantities.
In 2015, none of the required radionuclides were found in measurable quantities.
Table IV-D.2 provides a statistical summary of the oyster gamma spectroscopy results.
Table IV-D.2.a provides the results of the quarterly samples.
- 3. Monthly broad leaf vegetation samples were taken at two indicator locations, C48A and C48B, and one control location, C47.
In 2022, 11 out of the 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 82 pCi/kg and a range of 22 to 345 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137 in 10 of 12 samples ranging from 21 to 80 pCi/kg. The results are similar to 2021 results.
65 In 2021, 11 out of the 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 83 pCi/kg and a range of 12 to 212 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137 in 8 of 12 samples ranging from 10 to 96 pCi/kg. The results at location C48B are slightly greater than in 2020 mainly due to the July sample. The other samples at C48B were consistent with historical values. July was a very wet month and may have influenced the sample result. The K-40 result for July was also the highest of the year.
In 2020, 12 out of the 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 51 pCi/kg and a range of 10 to 116 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137 in 10 of 12 samples ranging from 16 to 336 pCi/kg. These results are similar to those in 2019.
In 2019, 11 out of the 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 52 pCi/kg and a range of 6 to 329 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137 in 7 of 12 samples ranging from 13 to 154 pCi/kg. These results are similar to those in 2018.
In 2018, 13 out of 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 27 pCi/kg and a range of 13 to 48 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137. In 12 of 12 control station samples there were measurable amounts of Cs-137 with an average concentration of 111 pCi/kg and a range of 38 to 184 pCi/kg. These results are similar to those in 2017.
In 2017, 12 out of 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 30 pCi/kg and a range of 17 to 66 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137. In 10 of 12 control station samples there were measurable amounts of Cs-137 with an average concentration of 99 pCi/kg and a range of 19 to 186 pCi/kg. These results are similar to those in 2016.
In 2016, 13 out of 24 indicator locations (C48A and C48B) had measurable amounts of Cs-137 with an average concentration of 46 pCi/kg and a range of 11 to 179 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137. In 10 of 12 control station samples there were measurable amounts of Cs-137 with an average concentration of 73 pCi/kg and a range of 10 to 174 pCi/kg. These results are similar to those in 2015.
In 2015, 14 of 24 indicator samples had measurable amounts of cesium-137 with an average concentration of 50 pCi/kg and a range of 12 to 105 pCi/kg. The control station (C47) located in Orlando, Fl. also had measurable amounts of Cs-137. In 11 of 12 control station samples there were measurable amounts of Cs-137 with an average concentration of 67 pCi/kg and a range of 15 to 150 pCi/kg. The Cs-137 values are similar in concentration as compared to samples collected in 2014 which experienced radionuclide deposition as a result of the Fukushima earthquake event in 2011 and are not a result of the operation of CR3.
Table IV-D.3 provides a statistical summary of the vegetation gamma spectroscopy results.
- 4. In 2022 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (oranges and grapefruit) was collected at station C19. None of the required radionuclides were found in measurable quantities in the citrus sample. There were also four milk samples collected in 2022, all at location C28. Location C28 is about 20 miles SSE of the plant. All showed less than LLD for Cs-134 and Cs-137. Milk samples are not required per the ODCM. This is no change from 2021.
In 2021 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (oranges and grapefruit) was collected at station C19. None of the required radionuclides were found in measurable quantities in the citrus sample. There were also four milk samples collected in 2021, all at location C28. Location C28 is about 20 miles SSE of the plant. All showed less than LLD for Cs-134 and Cs-137. Milk samples are not required per the ODCM.
66 In 2020 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (oranges and grapefruit) was collected at station C19. None of the required radionuclides were found in measurable quantities in the citrus sample. There were also three milk samples collected in 2020, all at location C28. Location C28 is about 20 miles SSE of the plant. All showed less than LLD for Cs-134 and Cs-137. Milk samples are not required per the ODCM.
In 2019 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (oranges and grapefruit) was collected at station C19. None of the required radionuclides were found in measurable quantities in the citrus sample. There were also three milk samples collected in 2019, all at location C28. Location C28 is about 20 miles SSE of the plant. All showed less than LLD for Cs-134 and Cs-137. Milk samples are not required per the ODCM.
In 2018 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (oranges and grapefruit) was collected at station C19. None of the required radionuclides were found in measurable quantities in the citrus sample.
In 2017 the State was unable to locate a watermelon field at location C04 or anywhere in the vicinity of C04. This is documented in plant condition report 2192486. Also, only one citrus sample was collected versus the usual two samples. It showed above MDA levels of Cs-137 at 9 pCi/kg with an uncertainty of 2 pCi/kg. It was collected at location C19 which is 9.6 miles ENE of CR3. This reported value is less than the MDA of 11 pCi/kg reported in 2016 and is likely due to natural background.
In 2016 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (oranges and grapefruit) was collected at station C19. None of the required radionuclides were found in measurable quantities in the citrus sample.
In 2015 one watermelon sample was collected at station C04. None of the required radionuclides were found in measurable quantities. One citrus sample (grapefruit) was collected at station C19.
None of the required radionuclides were found in measurable quantities in the citrus samples with exception of Cs-137 at a concentration of 9 pCi/kg. It is not unusual to periodically see Cs-137 in citrus samples due to widespread deposition of Cs-137 from fallout due to past weapons testing and more recent from the Fukushima earthquake and tsunami event that occurred in 2011.
Table IV-D.4 provides a statistical summary of the watermelon and citrus gamma spectroscopy results.
Table IV-D.4.a provides the results of the semi-annual samples.
67 TABLE IV-D.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS CARNIVO ROUS Spec 8 FISH (pCi/kg)
Co-60 16
<LLD
<LLD 0
Cs-134 16
<LLD
<LLD 0
Cs-137 18
<LLD
<LLD 0
1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
68 TABLE IV-D.1.a ADP CR3, LLC-2022 pCi/kg GAMMA EMITTERS IN CARNIVOROUS FISH STATION QUARTER Co-60 Cs-134 Cs-137 K-40 C29 1
<22
<20
<21 1930+/-170 2
<24
<22
<24 2640+/-203 3
<17
<15
<15 2260+/-146 4
<22
<18
<20 2660+/-194 C30 1
<21
<20
<22 2590+/-195 2
<23
<19
<21 2430+/-195 3
<24
<17
<22 2920+/-213 4
<24
<16
<18 2550+/-181
69 1
10 100 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/Kilogram Carnivorous Fish Cs-134 LLD Cs-137 LLD
70 TABLE IV-D.2 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS OYSTERS Spec 5 (pCi/kg)
Co-60 16
<LLD
<LLD 0
Cs-134 16
<LLD
<LLD 0
Cs-137 18
<LLD
<LLD 0
1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
71 TABLE IV-D.2.a ADP CR3, LLC-2022 pCi/kg GAMMA EMITTERS IN OYSTERS STATION QUARTER Co-60 Cs-134 Cs-137 K-40 C29 2
<22
<20
<22 1700+/-158 3
<23
<20
<21 756+/-124 4
<21
<20
<22 966+/-126 C30 2
<29
<23
<32 1800+/-208 4
<25
<25
<25 1930+/-174
72 10 100 1000 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/Kilogram Oysters Cs-137 LLD Cs-134 LLD
73 TABLE IV-D.3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS BROAD LEAF VEGETATION Spec 36 (pCi/kg)
Cs-134 8
<LLD
<LLD 0
Cs-1372 8
82 (11/24)
(22-345)
C48B 88(10/12) 0.9 @ 73º (22-345) 40 (10/12)
(21-80) 0 1 The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
2 The elevated Cs-137 values are not associated with the operation of CR3 and are a direct result of global fallout including the Fukushima earthquake and tsunami event that occurred in 2011.
74 TABLE IV-D.3.a ADP CR3, LLC-2022 pCi/kg OF GAMMA EMITTERS IN BROAD LEAF VEGETATION STATION MONTH Cs-134 Cs-137 K-40 C47 JAN
<10 31+/-4 3790+/-162 FEB
<12 46+/-5 2150+/-120 MAR
<10
<15 2780+/-129 APR
<7 38+/-3 2630+/-117 MAY
<11 47+/-5 2810+/-142 JUN
<10 46+/-5 2690+/-133 JUL
<11 24+/-3 2150+/-112 AUG
<16 40+/-8 4140+/-243 SEP
<10 80+/-6 2470+/-124 OCT
<10 31+/-4 1630+/-91 NOV
<8
<12 3410+/-145 DEC
<11 21+/-5 2970+/-158 C48A JAN
<10
<12 1810+/-101 FEB
<9
<11 1600+/-99 MAR
<13
<16 3120+/-167 APR
<12
<16 3930+/-204 MAY
<13
<20 2610+/-170 JUN
<12
<16 2510+/-156 JUL
<13
<17 1830+/-134 AUG
<14 24+/-6 1930+/-146 SEP
<10
<14 2670+/-148 OCT
<12
<16 2670+/-160 NOV
<13
<12 5060+/-215 DEC
<12
<15 6260+/-253
75 TABLE IV-D.3.a (CONT'D)
ADP CR3, LLC-2022 pCi/kg OF GAMMA EMITTERS IN BROAD LEAF VEGETATION STATION MONTH Cs-134 Cs-137 K-40 C48B JAN
<11 64+/-5 1300+/-83 FEB
<11 63+/-5 1360+/-87 MAR
<10 71+/-6 1700+/-101 APR
<9 22+/-3 2390+/-118 MAY
<11 83+/-6 2370+/-122 JUN
<12 36+/-6 1830+/-134 JUL
<9 64+/-5 1510+/-87 AUG
<11
<17 2410+/-153 SEP
<8 69+/-5 1090+/-68 OCT
<12 59+/-6 1520+/-118 NOV
<17 345+/-18 1740+/-143 DEC
<17
<25 1310+/-135 The elevated Cs-137 values are a direct result of the Fukushima earthquake and tsunami event that occurred in 2011 and legacy weapons testing fallout and are not associated with CR-3 operation.
76 10 60 110 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 pCi/Kilogram Broad Leaf Vegetation Cs-137
77 TABLE IV-D.4 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302 CITRUS COUNTY, FLORIDA JANUARY 1 TO DECEMBER 31, 2022 MEDIUM OR PATHWAY SAMPLED (UNITS)
ANALYSIS AND TOTAL NUMBER OF ANALYSES PERFORMED LOWER LIMIT OF DETECTION (LLD)1 ALL INDICATOR LOCATIONS MEAN RANGE LOCATION WITH HIGHEST MEAN NAME MEAN DISTANCE & BEARING RANGE CONTROL LOCATION MEAN RANGE NUMBER OF NONROUTINE REPORTED MEASUREMENTS WATERMELON Spec 1 (pCi/kg)
Cs-134 8
<LLD None 0
Cs-137 8
<LLD None 0
CITRUS Spec 1 (pCi/kg)
Cs-134 8
<LLD None 0
Cs-137 8
<LLD None 0
1The "a priori" LLD which meets or exceeds the requirements of Table 2-5 of the CR-3 ODCM.
78 TABLE IV-D.4.a ADP CR3, LLC-2022 pCi/kg OF EMITTERS IN WATERMELON AND CITRUS STATION MONTH Cs-134 Cs-137 K-40 C04 - Watermelon June
<5
<6 1060+/-65 C19 - Citrus (Grapefruit)
January
<10
<11 2070+/-111