ML051100283
| ML051100283 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/08/2005 |
| From: | Bauer S Arizona Public Service Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 102-05245-SAB/TNW/CJJ | |
| Download: ML051100283 (66) | |
Text
liAMS Scott A. Bauer Tel. 623-393-5978 Mail Station 7636 Palo Verde Nuclear Department Leader, Fax 623-393-5442 PO Box 52034 Geneeating Station Regulatory Affairs e-mail: sbaueraapsc.com Phoenix, Arizona 85072-2034 102-05245-SAB/TNW/CJJ April 8, 2005 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Dear Sir
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2, and 3 Docket Nos. STN 50-52815291530 Annual Radiological Environmental Operating Report 2004 In accordance with PVNGS Technical Specification (TS) 5.6.2, enclosed please find the Annual Radiological Environmental Operating Report for 2004.
No commitments are being made to the NRC in this letter. If you have any questions, please contact Thomas N. Weber at (623) 393-5764.
Sincerely, SAB/TNW/CJJ/cla Enclosure cc:
B. S. Mallett M. B. Fields G. G. Warnick A. V. Godwin member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway O Comanche Peak 0 Diablo Canyon 0 Palo Verde 0 South Texas Project 0 Wolf Creek
ENCLOSURE Annual Radiological Environmental Operating Report 2004
NUCLEAR GENERATING STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 2004
(
Reference:
RCTSAI 1643, Legacy Item No. 036843.01)
Digitalty signed by: Drinovsky. Louis J(Z33699)
Date: 020005 16:12.25 Reason: I amn the author of this docurnent Location: PVNGS
/
e Prepared by:
Digitally signed by: Bungard, James P(Z1 801 2)
Date: 02/03/2005 14:58:39 Reason: I have reviewed this document Location: PVNGS Reviewed by:__
Digitally signed by, Gafiney, John P(Z36459)
Date: 03116/2005 11:19:28
^
Reason: I am approving this document Location: PVNGS Approvea Dy:.
TABLE OF CONTENTS
- 1.
INTRODUCTION.............................................................
2
- 2.
DESCRIPTION OF THE MONITORING PROGRAM.............................................................
3 2.1.
2004 PVNGS RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM.................................. 3 2.2.
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM CHANGES FOR 2004......................... 3 2.3.
REMP DEVIATIONS/ABNORMAL EVENTS
SUMMARY
4
- 3.
SAMPLE COLLECTION PROGRAM........................................................................................ 10 3.1.
WATER............................................................
10 3.2.
VEGETATION............................................................
10 3.3.
MILK............................................................
10 3.4.
AIR............................................................
0 I
3.5.
SLUDGE AND SEDIMENT.............................................................
11
- 4.
ANALYTICAL PROCEDURES..................................................................................................
I I 4.1.
AIR PARTICULATE.............................................................
I 1 4.2.
AIRBORNE RADIOIODINE.............................................................
11 4.3.
M ILK..........................................................................................................................................
I I1 4.4.
VEGETATION..............................................................................................................................
12 4.5.
SLUDGE/SEDIMENT............................................................
12 4.6.
WATER.............................................................
12 4.7.
SOIL............................................................
1 3
- 5.
NUCLEAR INSTRUMENTATION............................................................
13 5.1.
GAMMA SPECTROMETER.............................................................
13 5.2.
LIQUID SCINTILLATION SPECTROMETER..................................................................................... 1 3 5.3.
GAS FLOW PROPORTIONAL COUNTER.............................................................
13
- 6.
ISOTOPIC DETECTION LIMITS AND REPORTING CRITERIA.
14 6.1.
LOWERLIMITSOFDETECTION.................................
14 6.2.
DATA REPORTING CRITERIA....................................................................................................... 14 6.3.
LLD AND REPORTING CRITERIA OVERVIEW.................................
15
- 7.
INTERLABORATORY COMPARISON PROGRAM 20 7.1.
QUALITY CONTROL PROGRAM..........................................
20 7.2.
INTERCOMPARISON RESULTS..........................................
20
- 8.
DATA INTERPRETATIONS AND CONCLUSIONS 24 8.1.
AIR PARTICULATES..........................................
24 8.2.-
AIRBORNE RADIOIODINE..........................................
25 8.3.
VEGETATION.25 8.4.
MILK.25 8.5.
DRINKING WATER.25 8.6.
GROUNDWATER.........
25 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2004 ii
TABLE OF CONTENTS 8.7.
SURFACE WATER..........................................................
25 8.8.
SLUDGE AND SEDIMENT..........................................................
26 8.9.
DATA TRENDS.........................................................
26
- 9.
THERMOLUMINESCENT DOSIMETER (TLD) RESULTS AND DATA.............................. 46
- 10.
LANDUSECENSUS..........................................................
52 10.1.
INTRODUCTION..........................................................
52 10.2.
CENSUS RESULTS.........................................................
52
- 11.
SUMMARY
AND CONCLUSIONS......................................................... 54
- 12.
REFERENCES.........................................................
59 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 iii
LIST OF TABLES TABLE 2.1 SAMPLE COLLECTION LOCATIONS...........................................................
5 TABLE 2.2 SAMPLE COLLECTION SCHEDULE...........................................................
6 TABLE 2.3
SUMMARY
OF REMP DEVIATIONS/ABNORMAL EVENTS......................................... 7 TABLE 6.1 ODCM REQUIRED LOWER LIMITS OF DETECTION (A PRIORI)............................... 17 TABLE 6.2 ODCM REQUIRED REPORTING LEVELS..........................................................
18 TABLE 6.3 TYPICAL MDA VALUES..........................................................
1 9 TABLE 7.1 INTERLABORATORY COMPARISON RESULTS.......................................................... 21 TABLE 8.1 PARTICULATE GROSS BETA IN AIR 1ST - 2ND QUARTER....................................... 27 TABLE 8.2 PARTICULATE GROSS BETA IN AIR 3RD - 4TH QUARTER....................................... 28 TABLE 8.3 GAMMA IN AIR FILTER COMPOSITES..........................................................
29 TABLE 8.4 RADIOIODINE IN AIR 1ST - 2ND QUARTER..........................................................
30 TABLE 8.5 RADIOIODINE IN AIR 3RD - 4TH QUARTER..........................................................
31 TABLE 8.6 VEGETATION.......................................
32 TABLE 8.7 MILK.......................................
33 TABLE 8.8 DRINKING WATER.......................................
34 TABLE 8.9 GROUNDWATER.......................................
36 TABLE 8.10 SURFACE WATER.......................................
37 TABLE 8.11 SLUDGE/SEDIMENT.......................................
40 TABLE 9.1 TLD SITE LOCATIONS.......................................
47 TABLE 9.2 2004 ENVIRONMENTAL TLD RESULTS.......................................
49 TABLE 10.1 2004 LAND USE CENSUS.......................................
53 TABLE 11.1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL
SUMMARY
55 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 iv
LIST OF FIGURES FIGURE 2.1 REMP SAMPLE SITES - MAP (0-10 miles)................................................................... 8 FIGURE 2.2 REMP SAMPLE SITES - MAP (0-35 miles)................................................................... 9 FIGURE 8.1 HISTORICAL GROSS BETA IN AIR (WEEKLY SYSTEM AVERAGES)............... 42 FIGURE 8.2 HISTORICAL GROSS BETA IN AIR (ANNUAL SITE TO SITE COMPARISONS)
COMPARED TO PRE-OP....................................................................... 43 FIGURE 8.3 GROSS BETA IN DRINKING WATER...................................................................... 44 FIGURE 8.4 EVAPORATION POND TRITIUM ACTIVITY............................................................ 45 FIGURE 9.1 NETWORK ENVIRONMENTAL TLD EXPOSURE RATES...............
....................... 50 FIGURE 9.2 ENVIRONMENTAL TLD COMPARISON - PRE-OPERATIONAL VS 2004............ 51 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 v
ABSTRACT The Radiological Environmental Monitoring Program (REMP) is an ongoing program conducted by Arizona Public Service Company (APS) for the Palo Verde Nuclear Generating Station (PVNGS).
Various types of environmental samples are collected near PVNGS and analyzed for plant related radionuclide concentrations.
During 2004, the following categories of samples were collected by APS:
- Broad leaf vegetation Groundwater Drinking water
- Surface water
- Airborne particulate and radioiodine
- Goat milk
- Sludge and sediment Thermoluminescent dosimeters (TLDs) were used to measure environmental gamma radiation. The Environmental TLD program is also conducted by APS.
The Arizona Radiation Regulatory Agency (ARRA) performs radiochemistry analyses on various duplicate samples provided to them by APS. Samples analyzed by ARRA include onsite samples from the Reservoir, two (2) Evaporation Ponds, and two (2) deep wells. Offsite samples analyzed by ARRA include two (2) local resident wells. ARRA also performs air sampling at seven (7) offsite locations identical to APS and maintains approximately fifty (50) environmental TLD monitoring locations, eighteen (18) of which are duplicates of APS locations.
A comparison of pre-operational and operational data indicates no changes to environmental radiation levels. There were no measurable radiological impacts on the environment due to PVNGS operations in 2004.
(NOTE: Reference to APS throughout this report refers to PVNGS personnel)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004
OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
- 1. Introduction This report presents the results of the operational radiological environmental monitoring program conducted by Arizona Public Service Company (APS). The Radiological Environmental Monitoring Program (REMP) was established for the Palo Verde Nuclear Generating Station (PVNGS) by APS in 1979. The REMP is performed in accordance with the federal requirements to provide a complete environmental monitoring program for nuclear reactors, and with concern for maintaining the quality of the local environment. The program complies with the requirements of 10 CFR50, Appendix I, PVNGS Technical Specifications, and with the guidance provided by the US Nuclear Regulatory Commission (USNRC) in their Radiological Assessment Branch Technical Position on Environmental Monitoring, Revision 1, November 1979.
This report contains the measurements and findings for 2004. All references are specifically identified in Section 12.
The objectives of the REMP are as follows: 1) to determine baseline radiation levels in the environs prior to plant operation and to compare the findings with measurements obtained during reactor operations; 2) to monitor potential critical pathways of radio-effluent to the public; and 3) to determine radiological impacts on the environment caused by the operation of PVNGS.
Results from the REMP help to evaluate sources of elevated levels of radioactivity in the environment (e.g., atmospheric nuclear detonations or abnormal plant releases).
Results of the PVNGS pre-operational environmental monitoring program are presented in Reference 1.
- The initial criticality of Unit 1 occurred May 25, 1985. Initial criticality for Units 2 and 3 were April 18, 1986, and October 25, 1987, respectively. PVNGS operational findings (historical) are presented in Reference 2.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 2
- 2.
Description of the Monitoring Program
- APS and vendor organizations performed the pre-operational radiological environmental monitoring program, which began in 1979. APS and vendors continued the program into the operational phase.
2.1.
2004 PVNGS Radiological Environmental Monitoring Program The assessment program consists of routine measurements of background gamma radiation and of radionuclide concentrations in media such as air, groundwater, drinking water, surface water, vegetation, milk, sludge, and sediment.
Samples were collected by APS at the monitoring sites shown in Figures 2.1 and 2.2.
The specific sample types, sampling locations, and sampling frequencies, as set forth in the PVNGS Offsite Dose Calculation Manual (ODCM), Reference 4, are presented in Tables 2.1, 2.2 and 9.1. Additional onsite sampling (outside the scope of the ODCM) is performed to supplement the REMP. All results are included in this report. Sample analyses were performed by APS at the PVNGS Central Chemistry Laboratory.
Background gamma radiation measurements were performed by APS using TLDs at forty-nine (49) locations near PVNGS.
In addition to monitoring environmental media, a land use census is performed annually to identify the nearest milk animals, residents, and gardens. This information is used to evaluate the potential dose to members of the public for those exposure pathways that are indicated.
2.2.
Radiological Environmental Monitoring Program Changes for 2004 x One (1) new garden replaced an existing garden location due to dose calculation results.
x One (1) new milk animal (goats) location was added to the REMP.
x One (I) TLD, site #41, was placed at a new school.
Refer to Table 2.1 for a description of all current sample locations (except TLDs).
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 3
2.3.
REMiP Deviations/Abnormal Events Summary During calendar year 2004, there were three (3) deviations/abnormal events with regard to the monitoring program. Refer to Table 2.3 for more detail and any corrective actions taken.
- Air sample site #4 for the week of 2-3-04 through 2-10-04 was invalidated due to an anomalous result.
- Air sample site #29 was out of service from 10-19-04 through 10-26-04.
- The WRF Influent I-131 concentration exceeded 100 pCi/liter on three (3) occasions.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 4
Table 2.1 SAMPLE COLLECTION LOCATIONS SAMPLE E '
SITE#
SAMPLE TYPE LOCATION LOCATIOArDESCRIPTION 4
air E16 APS Office 6A*
air SSE13,.,,
Old US 80 14A air NNE2'-
371St Ave. and Buckeye-Salome Rd.
15 air NE2 NE Site Boundary 17A air E3, 3515 Ave.
21 air S3 -
S Site Boundary 29 air WI '
W Site Boundary 35 air NNW8 Tonopah 40 air N2 Transmission Rd 46 drinking water NW9 '
McArthur residence 47 vegetation
'ESE4 McCoy residence 48.-
drinking water SWi Berryman residence 49 drinking water N2 '
Chowanec residence 51':
milk
-NE4' Painter residence-goats 52 :
vegetation NNE2 rb).,
Branch residence 53*
milk ENE24 '
Barber residence-goats 54 milk NNE2(bj. '
Branch residence-goats 55, drinking water SW3,- :
I Gavette residence (supplemental) 57 I groundwater ONSITE Well 27ddc 58
', groundwater ONSITE-Well 34abb 59, surface water
- ONSITE, Evaporation Pond #1 60.
surface water ONSITE Reservoir 62*
vegetation
'ENE26 Duncan Family Farms 63 j surface water ONSITE, " -
Evaporation Pond #2 NOTES:
- Designates a control site (a) Distances and direction are from the center-line of Unit 2 containment and rounded to the nearest mile (b) Denotes a change in location or a new sample location Air sample sites designated with the letter 'A' are sites that have the same site number as a TLD location, but are not in the same location (e.g. site #6 TLD location is different from site #6A air sample location; site #4 TLD location is the same as site #4 air sample location)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 5
Table 2.2 SAMPLE COLLECTION SCHEDULE SAMPLE AIR AIRBORNE GROUND DRINKING SURFACE SITE #
PARTICULATE MILK RADIIOWDINE VEGETATION IA TER IVA TER WA TER 4
W W
6A W
W 14A W
W 15 W
W 17A W
W 21 W
W 29 W
W 35 W
WV 40 W
WV 46 W
47 M/AA 48 W
49
.W 51 M/AA 52 M/AA 53 M/AA 54 M/AA 55 W
57 Q
58 Q
59-XV 60
_W 62 M/AA 63
.W W = WEEKLY M/AA = MONTHLY AS AVAILABLE Q = QUARTERLY PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 6
TABLE 2.3 SUMMARIES OF REMP DEVIATIONS/ABNORMAL EVENTS Deviation/Abnormal Event
- 1. Air sample site #4 for the week of 2-3-04 through 2-10-04 was invalidated due to an anomalous result.
- 2. Air sample site #29 was out of service from 10-19-04 through 10-26-04.
- 3. The WRF Influent I-131 concentration exceeded 100 pCi/liter on three (3) occasions.
Actions taken
- 1. The problem was attributed to intermittent power losses due to construction activities in the area. Subsequent sample results were considered acceptable, therefore no further actions were required.
- 2. This was a planned event and due to construction activities related to plant security upgrades. To prevent excess dust loading due to changes in plant entrance roadways, the air sample station was moved two (2) poles south of its previous location. GPS readings indicate that the sample station is still in the west sector. No further action is required.
- 3. Phoenix sewage effluent is the supply for this water and is know to contain radiopharmaceutical I-13 1. The Arizona Radiation Regulatory Agency is notified when this source of water exceeds an I-131 concentration of 100 pCi/liter. This was considered an abnormal event since it was the first year this threshold was known to have been exceeded. This is considered a courtesy notification (not regulatory) and no further action is required.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 7
FIGURE 2.1 Graphic Scale In Miles '
rn I
I I
I I
I 0
1 2
3 4
5 N
KEY TO MAP Palo Verde Nuclear Generating Station Paved Road uw lepost Unpaved Road Palo Verde Nuclear
-~
z 4WD Road GeneatIng Station Radiological
-41 a
F--- as Pipeline Environmental Monitoring
-10F---lol-Oil Pipeline TTherrmolunIlnescert PormSml ie 1-4t I Power Une DosImeters. rL.D)
Program Sample Sites Railroad Air Sample 4 A p
v VegetatlonSample 0-10 Miles w Water Sample School M MIlkSaimpl
- 1) Sample Shes PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT-2004 8
N A
VI A riS f.1t~e
-E
~~Graphic ScaleInMe 0
1 2
03
~~Pa~o~MIRJNE Rasymaed~
2 14 lb, aP Surprise TJiLR
El rage vi
IPeOn I1 RP.
k OM Az 5
5 I
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35 Miles Miles j
3 M i e s~
IIt M4IV 1 CAI0 a
M P
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1 ESE l
/ 2 Mil KEY TO MAP Palo Verde Nuclear Generating Station I I I I Railroad
!! Palo Verde Nuclear RADIOLOGICAL ENVIRONMENTAL MONITORING Generating Station lPROGRAM SAMPLE SITES
~. Airstrip!A lrport B u d r
-3 ie Schools Located T Thermoluminescent
(
Sample Sites 035 Miles
- Near Sample Sites Dosometer (I1D)
V Vegetation
- Municipal Buildings A Air Sample hi MILK
- 3.
Sample Collection Program APS personnel using PVNGS procedures collected all samples.
3.1.
Water Weekly samples were collected from the Reservoir, Evaporation Pond #1, Evaporation Pond #2, and four (4) residence wells. Samples were collected in one-gallon containers and 500 ml glass bottles. One liter from each weekly one-gallon sample was added to a monthly composite, which is preserved with nitric acid (HNO3). The composite samples were then analyzed for gamma emitting radionuclides. Residence wells were also analyzed for gross beta activity. Weekly grab samples in glass bottles were composited quarterly and analyzed for tritium.
Quarterly grab samples were collected from onsite wells 34abb and 27ddc. Samples were collected in one-gallon containers and 500 ml glass bottles. Samples were analyzed for gamma emitting radionuclides and tritium.
Treated sewage effluent from the City of Phoenix was sampled as a weekly composite at the onsite Water Reclamation Facility (WRF), and analyzed for gamma emitting radionuclides. A monthly composite was analyzed for tritium.
3.2.
Vegetation Vegetation samples were collected monthly, as available, and were analyzed for gamma emitting radionuclides.
3.3.
Milk Goat milk samples were collected monthly, as available, and were analyzed for gamma emitting radionuclides, including low level I-131.
3.4.
Air Air particulate filters and charcoal cartridges were collected at nine (9) sites on a weekly basis. Particulate filters were analyzed for gross beta. Charcoal cartridges were analyzed for I-131. Particulate filters were composited quarterly, by location, and analyzed for gamma emitting radionuclides.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 10
3.5.
Sludge and Sediment Sludge samples were obtained weekly from the WRF waste centrifuge (whenever the plant was operational) and analyzed for gamma emitting radionuclides. Samples were collected using 1000 ml plastic bottles.
Scale was removed from cooling tower louvers and circulating water/plant cooling water piping and analyzed for gamma emitting radionuclides.
Bottom sediment/sludge samples were obtained from Evaporation Pond #1 and #2 and analyzed for gamma emitting radionuclides.
- 4.
Analytical Procedures The procedures described in this report are those used by APS to routinely analyze samples.
4.1.
Air Particulate 4.1.1.
Gross Beta A glass fiber filter sample is placed in a stainless steel planchet and counted for gross beta activity utilizing a low background gas flow proportional counter.
4.1.2.
Gamma Spectroscopy The glass fiber filters are counted on a multichannel analyzer equipped with an HPGe detector. The resulting spectrum is analyzed by a computer for specific radionuclides.
4.2.
Airborne Radioiodine The charcoal cartridge is counted on a multichannel analyzer equipped with an HPGe detector. The resulting spectrum is analyzed by a computer for 1-13 1.
4.3.
Milk 4.3.1.
Gamma Spectroscopy The sample is placed in a plastic marinelli beaker, weighed, and counted on a multichannel analyzer equipped with an HPGe detector. The resulting spectrum is analyzed by a computer for specific radionuclides.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 1 1
4.4.
Vegetation 4.4.1.
Gamma Spectroscopy The sample is pureed in a food processor, placed in a one liter plastic marinelli beaker, weighed, and counted on a multichannel analyzer equipped with an HPGe detector. The resulting spectrum is analyzed by a computer for specific radionuclides.
4.5.
Sludge/Sediment 4.5.1.
Gamma Spectroscopy The wet/dry sample is placed in a one-liter plastic marinelli beaker, weighed, and counted on a multichannel analyzer equipped with an HPGe detector. The resulting spectrum is analyzed by a computer for specific radionuclides.
4.6.
Water 4.6.1.
Gamma Spectroscopy The sample is placed in a one-liter plastic marinelli beaker, weighed, and counted on a multichannel analyzer equipped with an HPGc detector. The resulting spectrum is analyzed by a computer for specific radionuclides.
4.6.2.
Tritium The sample is evaluated to determine the appropriate method of preparation prior to counting. If the sample contains suspended solids or is turbid, it may be filtered, distilled, and/or de-ionized, as appropriate. Eight (8) milliliters of sample are mixed with fifteen (15) milliliters of liquid scintillation cocktail.
The mixture is dark adapted and counted for tritium activity using a liquid scintillation counting system.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 12
4.6.3.
Gross Beta A 200-250 milliliter sample is placed in a beaker. Five (5) milliliters of concentrated nitric (HNO3) acid is added and the sample is evaporated down to about twenty (20) milliliters. The remaining sample is transferred to a stainless steel planchet. The sample is heated to dryness and counted for gross beta in a gas flow proportional counter.
4.7.
Soil 4.7.1.
Gamma Spectroscopy The samples are sieved, placed in a one-liter plastic marinelli beaker, and weighed. The samples are then counted on a multichannel analyzer equipped with an HPGe detector. The resulting spectrum is analyzed by a computer for specific radionuclides.
- 5.
Nuclear Instrumentation 5.1.
Gamma Spectrometer The Canberra Gamma Spectrometer consists of a Canberra System equipped with HPGe detectors having resolutions of 1.73 keV and 1.88 keV (as determined by full width half max with an energy of 0.5 keV per channel) and respective efficiencies of 21.5% and 38.4% (as determined by the manufacturer with Co-60). The Canberra System is used for all gamma counting. The system uses Canberra developed software to search, identify, and quantify the peaks of interest.
5.2.
Liquid Scintillation Spectrometer A Beckman LS-6500 Liquid Scintillation Counter is used for tritium determinations.
The system background averages approximately 15-17 cpm with a counting efficiency of approximately 40% using a quenched standard.
5.3.
Gas Flow Proportional Counter The Tennelec S5E is a low background gas flow proportional counter for gross beta analysis. The system contains an automatic sample changer capable of counting 50 samples in succession. Average beta background count rate is about 1-2 cpm with a beta efficiency of approximately 30% for Cs-137.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 13
- 6.
Isotopic Detection Limits and Reporting Criteria 6.1.
Lower Limits of Detection The lower limits of detection (LLD) and the method for calculation are specified in the.
PVNGS ODCM, Reference 4. The ODCM required a priori LLDs are presented in Table 6.1. For reference, a priori LLDs are indicated at the top of data tables for samples having required LLD values.
6.2.
Data Reporting Criteria All results that are greater than the Minimum Detectable Activity (MDA) (a posteriori LLD) are reported as positive activity with its associated 2a counting error. All results that are less than the MDA are reported as less than values at the associated MDA. For example, if the MDA is 12 pCi/liter, the value is reported as <12.
Typical MDA values are presented in Table 6.3.
Occasionally, the PVNGS ODCM a priori LLDs may not be achieved as a result of:
Background fluctuations Unavoidably small sample sizes The presence of interfering radionuclides
- Self absorption corrections Decay corrections for short half-life radionuclides Other uncontrollable circumstances In these instances, the contributing factors will be noted in the table where the data are presented. A summary of deviations/abnormal events is presented in Table 2.3 and includes a description of any sample results that did not meet a priori LLD requirements.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 14
6.3.
LLD and Reporting Criteria Overview 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 or blank is not a fixed value but that a series of replicates would be normally distributed. The desired net activity is the difference between the gross and background activity distributions. The interpretation of this difference becomes a problem if the two distributions intersect as indicated in the diagram.
BACKGROUND GROSS If a sufficient number of replicate analyses are run, it is expected that the results would fall in a normal Gaussian distribution. 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 result. In routine analysis, such replication is not carried out, and it is not possible to report a Gaussian standard deviation. With counting procedures, however, it is possible to estimate a Poisson standard deviation directly from the count. Data are commonly reported as the measured value + one or two Poisson standard deviations. The reported values are then considered to give some indication of the range in which the true value might be expected to occur.
A LLD is the smallest amount of sample activity that will yield a net count for which there is confidence at a predetermined level that activity is present. LLDs are calculated values for individual radionuclides based on a number of different factors including sample size, counting efficiency and background count rate of the instrument, the background and sample counting time, the decay time, and the chemical recovery of the analytical procedures. A minimum detectable activity value (MDA) is the smallest amount of activity that can be detected in an actual sample and uses the values obtained from the instrument and outcome of the analytical process.
Therefore, the MDA values may differ from the calculated LLD values if the sample size and chemical recovery, decay values, or the instrument efficiency, background, or count time differed from those used in the LLD calculation.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 15
The factors governing the calculation of the LLD and MDA values are discussed below:
- 1. Sample Size
- 2. Counting Efficiency The fundamental quantity in the measurement of a radioactive substance is the number of disintegrations per unit time. As with most physical measurements in analytical chemistry, an absolute measurement of the disintegration rate is seldom possible, rather it is necessary to compare the sample with one or more standards. The standards determine the counter efficiency that may then be used to convert sample counts per minute (cpm) to disintegrations per minute (dpm).
- 3. Background Count Rate Any counter will show a certain counting rate without a sample in position. This background counting rate comes from several sources: 1) natural environmental radiation from the surrounding materials, 2) cosmic radiation, and 3) the natural radioactivity in the counter material itself. The background counting rate will depend on the amounts of these types of radiation and the sensitivity of the counter to the radiation.
- 4. Background and Samplc Counting Time The amount of time devoted to the counting of the background depends on the level of 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 nuclides. The disintegration constant is one of the basic characteristics of a specific radionuclide and is readily determined, if the half-life is sufficiently short. To ensure the required LLDs are achieved, appropriate decay correction values are used to account for radioactive decay during transit time and sample processing.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 16
Table 6.1 ODCMI REQUIRED LOWER LIMITS OF DETECTION (a priori)
AIRBORNE ANALYSIS/
WATER PARTICULATE or MILK VEGETATION NUCLIDE (pCi/litcr)
GAS (pCi/m3)
(pCi/liter)
(pCi/kg, wet)
Gross Beta 4
0.01 H-3 2000*
Mn-54 15 Fe-59 30 Co-58, 60 15 Zn-65 30 Zr-95 30 Nb-95 15 1-131 1**
0.07 1
60 Cs-134 15 0.05 15 60 Cs-137 18 0.06 18 80 Ba-140 60 60 La-140 15 15 NOTES:
- If no drinking water pathway exists, a value of 3000 pCi/liter may be used.
- If no drinking water pathway exists, a value of 15 pCi/liter may be used.
This list does not mean that only these nuclides are to be detected and reported. Other peaks that are measurable and identifiable, together with the above nuclides, shall also be identified and reported.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 17
Table 6.2 ODCM REQUIRED REPORTING LEVELS AIRBORNE ANALYSIS/
NWNATER PARTICULATE MILK VEGETATION NUCLIDE (pCi/liter) or GAS (pCi/m3)
(pCiIliter)
(pCi/kg, wet)
H-3 20,000*
Mn-54 1,000 Fe-59 400 Co-58 1,000 Co-60 300 Zn-65 300 Zr/Nb-95 400 1-131 2*$
0.9 3
100 Cs-134 30 10 60 1,000 Cs-137 50 20 70 2,000 Ba/La-140 200 300 NOTES:
For drinking water samples. This is a 40CFR141 value. If no drinking water pathway exists, a value of 30,000 pCi/liter may be used.
- If no drinking water pathway exists, a reporting level of 20 pCi/liter may be used.
The values in this table are (calendar) quarterly average values, as stated in the ODCM.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 18
Table 6.3 TYPICAL MDA VALUES ANALYSIS/
AIRBORNE VEGETATION NUCLIDE WATER MILK PARTICULATE or (pCi/kg, wet)
(pCi/liter)
(pCi/liter)
GAS (pCi/m3)
Gross Beta 3
0.003 H-3 280 Mn-54 12 Fe-59 21 Co-58 11 Co-60 13 Zn-65 26 Zr-95 19 Nb-95 11 I-131 Oa 1
0.05 50 Cs-134 10 1
0.02 50 Cs-137 12 1
0.0 2 60 Ba-140 38 3
La-140 13 1
NOTES:
a - low level I-13 1 is not required since there is no drinking water pathway b - Based on 433 m3 volume PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 19
- 7.
Interlaboratory Comparison Program 7.1.
Quality Control Program APS maintains an extensive QA/QC Program to provide assurance that samples are collected, handled, tracked, and analyzed to specified requirements. This program includes appropriate elements of USNRC Regulatory Guide 4.15, Quality Assurance for Radiological Monitoring Programs (Normal Operations) - Effluent Streams and the Environment, Rev. 1. Included in the program are procedures for sample collection, preparation and tracking, sample analysis, equipment calibration and checks, and ongoing participation in an interlaboratory comparison program. Duplicate/replicate samples are analyzed to verify analytical precision and sample methodology.
Comprehensive data reviews are performed including trending of data where appropriate.
During 2004, APS analyzed the following sample types under the interlaboratory comparison program;
- Beta/Gamma/ in Air Filter
- I-131 in Air
- Beta in Water
- Gamma in Water
- Tritium in Water 7.2.
Intercomparison Results APS participates in a crosscheck program using vendor supplied blind radionuclide samples. Results for the interlaboratory comparison program are presented in Table 7.1.
All crosscheck results reported in 2004 were within the established acceptance criteria.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 20
TABLE 7.1 INTERLABORATORY COMPARISON RESULTS l
Sample Analysis Nuclide l PVNGS Certified PT Acceptance Accept/Reject Type Type Value Value 1 Limits 2 Water lIodine 1 I-131 l 27.7 28.2 [
23.0 - 33.4 Accept (ERA RAD-55) tium I H-3 1 12927 l 14300 l 11800 - 16800 Il Accept E Sample Analysis Nuclide PVNGS Certified PT Acceptance Accept/Reject Type Type l Value Value 1 Limits 2 l
Water Tritium H-3 27000 30900 25600 - 36200 Accept (ERA RAD-57)
Mixed I-131 l 26 25.1 J 19.9 - 30.3 Accept Gamma Co-60 [ 43.3 l 41.6 ll 32.9 - 50.3 l
Accept Zn-65 [80.1 75.2 62.2-88.2 l
Accept l Ba-133 100 l 101 83.5 - 118 1
Accept lCs-134 j[ 47.9 l 50.5 JI 41.8 - 59.2
][
Accept l
l l Cs-137 [ 88.5 l 82.5
][
73.8 - 91.2 l
Accept
- I The certified values are verified to meet criteria as established by NIST NVLAP in Handbooks 150 and 150-19 and the USEPA in National Standards for Water Proficiency Testing Studies Criteria Document (December 30, 1998).
2 "Acceptance limits" have been calculated per the requirements of the USEPA in National Standards for Water Proficiency Testing Studies Criteria Document (December 30, 1998). The "PT limits' are calculated at the 3 standard deviation limit.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 21
TABLE 7.1 INTERLABORATORY COMPARISON RESULTS Ii 1
Sample Analysis Nuclide Known PVNGS sigma Resolution Ratio Accept/Reject Type Type Value Value Error
~Mixedl Water Gamma 1-131 70.8 73 7
10 1.03 Accept E4236-111 Ce-141 250 254 13 20 1.02 Accept Cr-51 223 199 29 7
0.89 Accept Cs-134 96.4 79 6
13 0.82 Accept Cs-137 215 217 13 17 1.01 Accept Co-58 94.6 96 7
14 1.01 Accept Mn-54 181 175 10 18 0.96 Accept Fe-59 91.6 107 11 10 1.17 Accept Zn-65 178 186 15 12 1.04 Accept Co-60 125 124 8
16 0.99 Accept Tritium H-3 12000 10200 293 35 0.85 Accept E4239-1 11 Gross Beta 225 283 31 9
1.26 Accept E4235-111 Air Gross Beta 195 215 2.3 93 1.1 Accept E4237-111 Iodine Cart I-131 77.2 81 4.7 17 1.05 Accept E4234-111 Mixed Gamma Ce-141 180 202 10 20 1.13 Accept E3992-111 Cr-51 161 177 13 14 1.1 Accept Cs-134 69.3 87 4
22 1.26 Accept Cs-137 154 177 10 18 1.15 Accept Co-58 68 76 5
15 1.12 Accept Mn-54 130 156 10 16 1.2 Accept Fe-59 65.7 85 6
14 1.29 Accept Zn-65 128 160 10 16 1.25 Accept Co-60 90 100 6
17 1.11 Accept PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 22
TABLE 7.1 INTERLABORATORY COMPARISON RESULTS Sample A
s Nuclide Known sigma Accept/Reject Type [
Type
[ ____
VleValue Error Mixed Water Gamma 1-131 91.5 83 9
9 0.91 Accept E4439-111 Ce-141 149 149 9
17 1.0 Accept Cr-51 365 378 34 11 1.04 Accept Cs-134 164 143 9
16 0.87 Accept Cs-137 121 128 8
16 1.06 Accept Co-58 141 133 8
17 0.95 Accept Mn-54 131 136 8
17 1.04 Accept Fe-59 117 130 11 12 1.11 Accept Zn-65 189 192 13 15 1.02 Accept Co-60 168 169 9
19 1.0 Accept Tritium H-3 8060 7090 256 28 0.88 Accept E4443-111 Gross Beta 195 242 3
81 1.24 Accept E4438-111 l Air Gross Beta 200 249 1.8 138 1.24 Accept E3440-111 Iodine Cart 1-131 85 86 5.5 16 1.01 Accept E4441-111 Mixed Gamma Ce-141 78 85 4
21 1.09 Accept E4442-111 Cr-51 184 198 14 14 1.08 Accept Cs-134 82.3 70 4
18 0.85 Accept Cs-137 61.1 69 4
17 1.13 Accept Co-58 70.8 78 5
16 1.10 Accept Mn-54 65.8 78 5
16 1.19 Accept Fe-59 58.8 75 6
13 1.28 Accept Zn-65 94.9 112 7
16 1.18 Accept Co-60 84.7 93 5
19 1.10 Accept
- calculated from PVNGS value/l sigma error value Acceptance Criteria 1 Resolution
<4 Ratio 4-7 0.5-2.0 8-15 0.6-1.66 16-50 0.75-1.33 51-200 0.80-1.25
>200 0.85-1.18 1From NRC Inspection Manual, Inspection Procedure 84750, "Radioactive Waste Treatment, And Effluent And Environmental Monitoring' PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 23
- 8.
Data Interpretations and Conclusions Associated with the analytical process are potential random and systematic errors. Systematic errors can be caused by instrument malfunctions, incomplete precipitation, back scattering, and self-absorption. Random errors are beyond the control of the analyst.
Efforts are made to minimize both systematic and random errors in the data reported.
Systematic errors are minimized by performing reviews throughout the analysis. For example, instruments are checked routinely with radioactive sources, and recovery and self-absorption factors based on individual sample analyses are incorporated into the calculation equations where necessary. Random errors are reduced by comparing all data to historical data for the same site and performing comparisons between analytical results when available. In addition, when data do not appear to match historical results, analyses may be rerun on a separate aliquot of the sample to verify the presence of the activity. The acceptance of data is dependent upon the results of quality control samples and is part of the data review process for all analytical results.
The "plus or minus value" reported with each analytical result represents the counting error associated with the result and gives the 95% confidence (2a) interval around the data.
Most samples contain radioactivity associated with natural background/cosmic radioactivity (e.g. K-40, Th-234, and Be-7). Gross beta results for drinking water and air are due to natural background. Gamma emitting radionuclides. which can be attributed to natural background sources, are not indicated in this report.
Results and interpretation of the data for all of the samples analyzed during 2004 are presented in the following sections. Assessment of pre-operational and operational data revealed no changes to environmental radiation levels. There were no measurable radiological impacts on the environment due to PVNGS operations in 2004.
8.1.
Air Particulates Weekly gross beta results, in quarterly format, are presented in Tables 8.1 and 8.2.
Historical trend graphs are depicted in Figures 8.1 and 8.2. Gross beta activity ranged from 0.012 to 0.080 pCi/M3. The associated counting error ranged from 0.001 to 0.004 pCi/mr3. Mean quarterly activity is calculated using weekly activity over a thirteen (13) week period. Also presented in the tables are the weekly mean values of all the sites as well as the percent relative standard deviation (RSD %) for the data. The findings are consistent with pre-operational baseline and previous operational results. Figure 8.2 shows the results of the gross beta in air from the pre-operational phase compared to the 1994-2004 gross beta in air results. As can be seen, the indicator sites trend consistently with the control site. The results are summarized in Table 11.1.
Table 8.3 displays the results of gamma spectroscopy on the quarterly composites. No Cs-134 or Cs-137 was observed.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 24
8.2.
Airborne Radioiodine Tables 8.4 and 8.5 present the quarterly radioiodine results. No airborne radioiodine wvas observed in any of the samples.
8.3.
Vegetation Table 8.6 presents gamma isotopic data for the vegetation samples. No gamma emitting radionuclides were observed in any of the samples.
8.4.
Milk Table 8.7 presents gamma isotopic data for the goat milk samples. No gamma emitting radionuclides were observed in any of the samples.
8.5.
Drinking Water Samples were analyzed for gross beta, tritium, and gamma emitting radionuclides.
Results of these analyses are presented in Table 8.8. No tritium or gamma emitting radionuclides were detected in any samples. Gross beta activity ranged from less than detectable to a high of 5.1 pCi/liter (McArthur residence, September composite).
8.6.
Groundwater Groundwater samples were analyzed for tritium and gamma emitting radionuclides.
Results obtained from the analysis of the samples are presented in Table 8.9.
No tritium or gamma emitting radionuclides were observed in any of the samples.
8.7.
Surface Water Surface water samples from the Reservoir and Evaporation Ponds were analyzed for tritium and gamma emitting radionuclides. The Reservoir contains processed sewage water from the City of Phoenix and is approximately 80 acres in size. The two Evaporation Ponds receive mostly circulating water from main turbine condenser cooling and are about 250 acres each. Results are presented in Table 8.10. I-131 was observed in Evaporation Pond # 1 in one (1) monthly composite sample (21 pCi/liter) and two (2) of the Reservoir monthly composite samples (9 and 15 pCi/liter). I-131 is a result of radiopharmaceutical I-131 in the Phoenix sewage effluent.
Tritium was routinely observed in Evaporation Ponds 1 and 2. The highest concentration in Evaporation Pond #1 was 1266 pCi/liter and the highest concentration in Evaporation Pond #2 was 1826 pCi/liter. Tritium was not identified in the Reservoir. The tritium identified in the Evaporation Ponds has been attributed to plant gaseous effluent releases and secondary plant liquid releases.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 25
WRF influent (Phoenix sewage effluent) samples collected by the WRF were analyzed for gamma emitting radionuclides and tritium. The results, presented in Table 8.10, demonstrate that I-131 was observed routinely. The highest I-131 concentration was 193 pCi/liter (week of December 7th). The results indicate an increase in radiopharmaceutical 1-131 usage in the Phoenix area. The Arizona Radiation Regulatory Agency was contacted each week that this concentration exceeded 100 pCi/liter (three times in 2004). None of the samples analyzed indicated the presence of tritium.
Table 8.10 also presents gamma spectroscopy and tritium measurements of samples collected from Sedimentation Basin #2. This basin collects rain waters from site runoff and was dry for most of the year. Tritium was detected in six (6) samples ranging from 278 to 482 pCi/liter. The tritium in this basin has been attributed to plant gaseous effluent releases and secondary plant liquid releases.
8.8.
Sludge and Sediment 8.8.1.
WRF Centrifuge waste sludge Sludge samples were obtained from the WRF centrifuge and analyzed by gamma spectroscopy. I-131 in the WRF waste centrifuge sludge is consistent with historical values
- and, as previously discussed, is due to radiopharmaccuticals in the WRF influent. 1-131 was present in all fifty (50) samples ranging from 203 to 1431 pCi/kg.
In-I 11 was also identified in the sludge in eight (8) samples. The highest concentration was 53 pCi/liter. It was previously established that In-i 11 is in use in the Phoenix area as a radiopharmaceutical. Results for WRF centrifuge waste sludge can be found in Table 8.11.
8.8.2.
Evaporation Ponds #1 and #2 sediment A set of nine (9) Evaporation Pond sediment samples indicated low levels of I-131 and Cs-137 in Evaporation Ponds 1 and 2. The concentrations were consistent with historical values. Sample results can be found in Table 8.11.
8.8.3.
Cooling Tower sludge Sludge originating from the Unit cooling towers and/or circulating water canals was not disposed of in the WRF sludge landfill during 2004. However, scale removed from cooling tower louvers and circulating water/plant cooling water piping was disposed of in the landfill. Sample results of the scale can be found in Table 8.11.
8.9.
Data Trends Figures 8.1-8.4 present data in graphical format. Historical data are displayed for comparison where practical.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 26
TABLE 8.1 PARTICULATE GROSS BETA IN AIR 1st - 2nd QUARTER ODCM required samples denoted by
- units are pCir 3
(control)
START DATE STOP DATE Site Site Site Site 4
6A*
14A*
15*
Site 17A Site 21 Site Site Site 29*
35 40*
Mean RSD (%)
Week #
1 2
3 4
5 6
7 8
9 10 11 12 13 29-Dec-03 6-Jan-04 0.027 0.027 0.023 0.025 0.027 0.024 6-Jan-04 13-Jan-04 0.054 0.053 0.048 0.048 0.049 0.051 13-Jan-04 20-Jan-04 0.075 0.079 0.075 0.074 0.080 0.074 20-Jan-04 27-Jan-04 0.036 0.037 0.036 0.042 0.036 0.037 27-Jan-04 3-Feb-04 0.031 0.032 0.029 0.032 0.032 0.031 3-Feb-04 10-Feb-04 Invalid '
0.020 0.017 0.018 0.019 0.018 10-Feb-04 17-Feb-04 0.042 0.036 0.037 0.038 0.037 0.031 17-Feb-04 24-Feb-04 0.023 0.021 0.020 0.020 0.019 0.019 24-Feb-04 1-Mar-04 0.012 0.013 0.014 0.014 0.015 0.013 1-Mar-04 9-Mar-04 0.021 0.021 0.022 0.023 0.019 0.018 9-Mar-04 16-Mar-04 0.041 0.040 0.040 0.042 0.039 0.037 16-Mar-04 23-Mar-04 0.036 0.036 0.034 0.035 0.037 0.029 23-Mar-04 29-Mar-04 0.032 0.029 0.029 0.033 0.028 0.029 0.027 0.051 0.078 0.040 0.031 0.019 0.036 0.021 0.014 0.021 0.037 0.037 0.030 0.021 0.024 0.025 0.044 0.053 0.050 0.068 0.073 0.075 0.037 0.040 0.038 0.025 0.027 0.030 0.017 0.018 0.018 0.027 0.029 0.035 0.018 0.020 0.020 0.012 0.013 0.013 0.021 0.021 0.021 0.032 0.032 0.038 0.029 0.032 0.034 0.029 0.027 0.030 8.7 6.3 4.8 5.8 8.3 5.7 13.8 7.2 7.5 7.1 9.7 9.4 6.4 Mean 0.036 0.034 0.033 0.034 0.034 0.032 0.034 0.029 0.031 0.033 5.9 2nd Quarter (control)
START STOP DATE DATE Site 4
Site Site Site 6A*
14A*
15*
Site 17A Site 21 Site 29*
Site Site 35 40*
Mean RSD (%)
Week #
14 15 16 17 18 19 20 21 22 23 24 25 26 29-Mar-04 6-Apr-04 0.023 6-Apr-04 13-Apr-04 0.030 13-Apr-04 20-Apr-04 0.031 20-Apr-04 27-Apr-04 0.029 27-Apr-04 4-May-04 0.030 4-May-04 11-May-04 0.040 1 1-May-04 18-May-04 0.032 18-May-04 25-May-04 0.029 25-May-04 1-Jun-04 0.030 1-Jun-04 7-Jun-04 0.036 7-Jun-04 15-Jun-04 0.030 15-Jun-04 22-Jun-04 0.030 22-Jun-04 29-Jun-04 0.024 0.021 0.023 0.025 0.020 0.019 0.028 0.026 0.030 0.030 0.027 0.030 0.030 0.033 0.031 0.031 0.027 0.030 0.032 0.025 0.026 0.034 0.033 0.039 0.030 0.031 0.041 0.039 0.041 0.039 0.040 0.030 0.032 0.032 0.034 0.028 0.031 0.028 0.031 0.031 0.029 0.029 0.029 0.032 0.031 0.029 0.032 0.034 0.038 0.035 0.031 0.028 0.030 0.026 0.028 0.025 0.027 0.026 0.035 0.030 0.028 0.029 0.030 0.033 0.028 0.023 0.024 0.029 0.032 0.025 0.033 0.038 0.029 0.027 0.029 0.036 0.028 0.025 0.028 0.023 0.023 0.022 0.025 0.025 0.028 0.029 0.030 0.031 0.023 0.024 0.027 0.033 0.033 0.033 0.038 0.035 0.039 0.031 0.033 0.031 0.027 0.026 0.029 0.029 0.031 0.030 0.034 0.030 0.034 0.029 0.030 0.028 0.029 0.024 0.028 0.030 0.027 0.028 8.7 7.6 3.9 11.2 8.2 4.8 6.2 6.7 3.9 7.6 6.3 11.7 11.0 Mean 0.030 0.030 0.030 0.033 0.030 0.028 0.029 0.029 0.029 0.030 4.5
' Sample result invalidated due to anomalous result of 0.032 (contributing factor was ETM problems due to power outages)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 27
TABLE 8.2 PARTICULATE GROSS BETA IN AIR 3rd - 4th QUARTER ODCM required samples denoted by
- units are pCi/rn 3 3rd Quarter.
(control)
START DATE STOP DATE Site Site Site Site Site Site Site Site Site 4
6A*
14A*
15*
17A 21 29*
35 40*
Mean RSD (%)
Week I#
27 28 29 30 31 32 33 34 35 36 37 38 39
-I 29-Jun-04 6-Jul-04 13-Jul-04 20-Jul-04 27-Jul-04 3-Aug-04 10-Aug-04 17-Aug-04 24-Aug-04 3 1-Aug-04 7-Sep-04 14-Sep-04 21 -Sen-04 6-Jul-04 13-Jul-04 20-Jul-04 27-Jul-04 3-Aug-04 10-Aug-04 17-Aug-04 24-Aug-04 3 1-Aug-04 7-Sep-04 14-Sep-04 21-Sep-04 28-Sen-04 0.030 0.026 0.028 0.027 0.037 0.034 0.032 0.032 0.030 0.035 0.044 0.033 0.031 0.026 0.027 0.022 0.027 0.030 0.033 0.026 0.035 0.025 0.034 0.044 0.028 0.032 0.030 0.028 0.027 0.029 0.032 0.036 0.029 0.031 0.028 0.036 0.039 0.031 0.032 0.032 0.032 0.029 0.030 0.037 0.037 0.032 0.029 0.028 0.036 0.049 0.034 0.032 0.028 0.029 0.025 0.027 0.034 0.032 0.031 0.031 0.028 0.032 0.043 0.031 0.029 0.027 0.032 0.024 0.029 0.036 0.033 0.027 0.029 0.025 0.024 0.041 0.029 0.028 0.026 0.026 0.030 0.032 0.024 0.024 0.028 0.028 0.038 0.030 0.033 0.03 6 0.033 0.031 0.03 0 0.032 0.028 0.027 0.035 0.035 0.043 0.044 0.031 0.031 0.03 1 0.028 0.022 0.030 0.024 0.027 0.030 0.033 0.026 0.030 0.024 0.034 0.038 0.028 0.027 0.027 0.030 0.025 0.028 0.034 0.034 0.030 0.031 0.027 0.033 0.043 0.031 0.030 10.8 7.6 9.0 4.0 9.9 5.2 9.2 6.0 7.2 11.2 7.6 6.7 6.7 Meat 0.032 0.030 0.03 1 0.034 0.031 0.030 0.032 0.031 0.029 0.031 4.8 (control)
START STOP Site Site Site Site Site Site Site Site Site Week#
DATE DATE 4
6A*
14A*
15*
17A 21 29*
35 40*
Mean RSD(%
40 41 42 43 44 45 46 47 48 49 50 51 52 28-Sep-04 5-Oct-04 12-Oct-04 19-Oct-04 26-Oct-04 2-Nov-04 8-Nov-04 16-Nov-04 22-Nov-04 30-Nov-04 7-Dec-04 14-Dec-04 20-Dec-04 5-Oct-04 12-Oct-04 19-Oct-04 26-Oct-04 2-Nov-04 8-Nov-04 16-Nov-04 22-Nov-04 30-Nov-04 7-Dec-04 14-Dec-04 20-Dec-04 27-Dec-04 0.034 0.048 0.038 0.021 0.018 0.031 0.023 0.046 0.038 0.043 0.029 0.036 0.038 0.034 0.049 0.039 0.024 0.020 0.041 0.024 0.046 0.040 0.041 0.032 0.039 0.045 0.034 0.040 0.035 0.024 0.018 0.033 0.024 0.040 0.038 0.037 0.028 0.037 0.036 0.036 0.048 0.038 0.024 0.021 0.037 0.025 0.048 0.034 0.041 0.030 0.036 0.038 0.033 0.048 0.039 0.023 0.019 0.040 0.024 0.047 0.040 0.03 8 0.023 0.036 0.031 0.032 0.043 0.034 0.019 0.016 0.033 0.024 0.041 0.037 0.040 0.029 0.035 0.041 0.036 0.040 0.037 005 a 0.020 0.04 1 0.023 0.043 0.038 0.042 0.029 0.040 0.035 0.034 0.045 0.039 0.021 0.018 0.033 0.025 0.042 0.042 0.039 0.025 0.038 0.034 0.034 0.040 0.036 0.021 0.0 18 0.033 0.021 0.040 0.039 0.041 0.026 0.032 0.035 0.034 0.045 0.037 0.022 0.0 19 0.036 0.024 0.044 0.038 0.040 0.028 0.037 0.037 3.7 8.7 5.0 8.5 8.0 11.2 5.2 7.2 5.8 4.8 9.9 6.4 11.1 Mean Annual Average 0.034 0.036 0.033 0.035 0.034 0.033 0.035 0.033 0.032 0.034 4.3 0.033 0.033 0.032 0.034 0.032 0.031 0.033 0.031 0.030 0.032 3.9
' Out of service due to road construction activities for plant security upgrades (planncd)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 28
TABLE 8.3 GAMMA IN AIR FILTER COMPOSITES ODCM required samples denoted by
- units are pCi/m 3 (control)
QUARTER ENDPOINT Site 4
Site 6A*
Site 14A*
Site 15*
Site 17A Site 21 Site 29*
Site 35 Site 40*
NUCLIDE
.6 29-Mar-04 29-Jun-04 28-Sep-04 27-Dec-04 Cs-134 Cs-137 Cs-134 Cs-137 Cs-134 Cs-137 Cs-134 Cs-137
<0.0043
<0.0035
<0.0035
<0.0034
<0.0027
<0.0034
<0.0028
<0.0033
<0.0029
<0.0034
<0.0030
<0.0042
<0.0036
<0.0017
<0.0030
<0.0021
<0.0028
<0.0024
<0.0044
<0.0013
<0.0044
<0.0035
<0.0021
<0.0043
<0.0013
<0.0036
<0.0034
<0.0042
<0.0035
<0.0043
<0.0029
<0.0031
<0.0031
<0.0044
<0.0010
<0.0031
<0.0023
<0.0034
<0.0044
<0.0020
<0.0030
<0.0024
<0.0034
<0.0025
<0.0040
<0.0026
<0.0029
<0.0047
<0.0026
<0.0029
<0.0031
<0.0011
<0.0035
<0.0036
<0.0024
<0.0038
<0.0024
<0.0022
<0.0034
<0.0023
<0.0052
<0.0022
<0.0020
<0.0025
<0.0042
<0.0036
<0.0023
<0.0011
<0.0025
<0.0031
<0.0025
<0.0021 Quarterly sample results include all samples except those determined to be invalid.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 29
TABLE 8.4 RADIOTODINE IN AIR 1st - 2nd QUARTER ODCM required samples denoted by
- units arc pCi/M3 1st Quarter (control) required LLD <0.070 Wecek #
START DATE STOP DATE Site 4
Site Site Site Site 6A*
14A*
15*
17A Site 21 Site 29*
Site Site 35 40*
2 3
4 5
6 7
8 9
10 11 12 13 29-Dec-03 6-Jan-04 6-Jan-04 13-Jan-04 13-Jan-04 20-Jan-04 20-Jan-04 27-Jan-04 27-Jan-04 3-Feb-04 3-Feb-04 10-Feb-04 10-Feb-04 17-Feb-04 17-Feb-04 24-Feb-04 24-Feb-04 1-Mar-04 I-Mar-04 9-Mar-04 9-Mar-04 16-Mar-04 16-Mar-04 23-Mar-04 23-Mar-04 29-Mar-04
<0.043
<0.031
<0.037
<0.022
<0.067
<0.030
<0.029
<0.043
<0.026
<0.035
<0.056
<0.057
<0.040
<0.061
<0.035
<0.034
<0.040
<0.050
<0.034
<0.030
<0.056
<0.039
<0.012
<0.041
<0.033
<0.029
<0.033
<0.028
<0.053
<0.067
<0.033
<0.032
<0.042
<0.035
<0.041
<0.032
<0.030
<0.042
<0.050
<0.038
<0.034
<0.024
<0.035
<0.026
<0.032 Invalid '
<0.041
<0.059
<0.034
<0.032
<0.027
<0.047
<0.032
<0.048
<0.037
<0.033
<0.044
<0.042
<0.055
<0.033
<0.049
<0.031
<0.043
<0.036
<0.040
<0.047
<0.034
<0.012
<0.022
<0.040
<0.032
<0.029
<0.063
<0.057
<0.049
<0.059
<0.057
<0.057
<0.050
<0.065
<0.064
<0.061
<0.031
<0.030
<0.030
<0.043
<0.025
<0.044
<0.025
<0.043
<0.035
<0.042
<0.039
<0.043
<0.049
<0.032
<0.041
<0.025
<0.048
<0.035
<0.050
<0.052
<0.036
<0.051
<0.035
<0.050
<0.028
<0.037
<0.037
<0.056
<0.059
<0.045
<0.049
<0.042
<0.038
<0.042
<0.037 2nd Quarter (control)
START STOP Site Site Site Site Site Site Site Site Site Week #
DATE DATE 4
6A*
14A*
15*
17A 21 29*
35 40*
14 29-Mar-04 6-Apr-04
<0.029
<0.047
<0.047
<0.030
<0.043
<0.017
<0.037
<0.024
<0.044 15 6-Apr-04 13-Apr-04
<0.031
<0.048
<0.034
<0.032
<0.033
<0.034
<0.054
<0.034
<0.033 16 13-Apr-04 20-Apr-04
<0.035
<0.062
<0.060
<0.034
<0.052
<0.031
<0.059
<0.028
<0.013 17 20-Apr-04 27-Apr-04
<0.034
<0.032
<0.043
<0.033
<0.035
<0.024
<0.040
<0.030
<0.037 18 27-Apr-04 4-May-04
<0.039
<0.042
<0.052
<0.040
<0.050
<0.031
<0.034
<0.043
<0.036 19 4-May-04 11-May-04
<0.039
<0.042
<0.013
<0.023
<0.037
<0.065
<0.042
<0.031
<0.036 20 11-May-04 18-May-04
<0.035
<0.031
<0.052
<0.045
<0.018
<0.034
<0.041
<0.034
<0.060 21 18-May-04 25-May-04
<0.035
<0.034
<0.061
<0.041
<0.042
<0.031
<0.049
<0.031
<0.026 22 25-May-04 1-Jun-04
<0.036
<0.061
<0.036
<0.039
<0.044
<0.048
<0.037
<0.038
<0.030 23 1-Jun-04 7-Jun-04
<0.039
<0.048
<0.058
<0.039
<0.058
<0.045
<0.050
<0.040
<0.050 24 7-Jun-04 15-Jun-04
<0.033
<0.057
<0.051
<0.033
<0.061
<0.032
<0.039
<0.041
<0.030 25 15-Jun-04 22-Jun-04
<0.039
<0.057
<0.068
<0.027
<0.033
<0.036
<0.049
<0.032
<0.022 26 22-Jun-04 29-Jun-04
<0.029
<0.055
<0.038
<0.044
<0.054
<0.041
<0.037
<0.039
<0.037 a Sample result invalidated due to anomalous gross beta result (contributing factor was ETM problems due to power outages)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 30
TABLE 8.5 RADIOTODINE IN AIR 3rd - 4th QUARTER ODCM required samples denoted by
- units are pCi/mr3 3rd Quartcr (control) required LLD <0.070 START STOP Site Site Site Site Site Site Site Site Site Week #
DATE DATE 4
6A*
14A*
15*
17A 21 29*
35 40*
27 28 29 30 31 32 33 34 35 36 37 38 39 29-Jun-04 6-Jul-04 13-Jul-04 20-Jul-04 27-Jul-04 3-Aug-04 10-Aug-04 17-Aug-04 24-Aug-04 31 -Aug-04 7-Sep-04 14-Sep-04 21-Sep-04 6-Jul-04
<0.033
<0.038 13-Jul-04
<0.029
<0.027 20-Jul-04
<0.034
<0.053 27-Jul-04
<0.042
<0.045 3-Aug-04
<0.013
<0.032 10-Aug-04
<0.044
<0.049 17-Aug-04
<0.046
<0.062 24-Aug-04
<0.054
<0.038 31-Aug-04
<0.030
<0.041 7-Sep-04
<0.037
<0.060 14-Sep-04
<0.032
<0.060 21-Sep-04
<0.032
<0.035 28-Sep-04
<0.041
<0.043
<0.037
<0.039
<0.060
<0.042
<0.014
<0.041
<0.054
<0.049
<0.049
<0.029
<0.034
<0.035
<0.056
<0.030
<0.053
<0.037
<0.051
<0.013
<0.035
<0.045
<0.037
<0.044
<0.068
<0.041
<0.046
<0.040
<0.045
<0.031
<0.058
<0.032
<0.049
<0.032
<0.053
<0.036
<0.038
<0.054
<0.050
<0.043
<0.034
<0.050
<0.036
<0.034
<0.035
<0.035
<0.049
<0.037
<0.068
<0.033
<0.044
<0.035
<0.036
<0.064
<0.033
<0.031
<0.042
<0.032
<0.039
<0.040
<0.037
<0.032
<0.035
<0.035
<0.040
<0.067
<0.047
<0.064
<0.042
<0.062
<0.043
<0.061
<0.061
<0.032
<0.060
<0.040
<0.046
<0.040
<0.038
<0.064
<0.027
<0.058
<0.035
<0.035
<0.063
<0.058
<0.036
<0.058
<0.038
<0.060
<0.040
<0.051
<0.039 4th Quarter (control) required LLD <0.070 START STOP Site Site Site Site Site Site Site Site Site WVeek t DATE DATE 4
6A*
14A*
15*
17A 21 29*
35 40*
40 41 42 43 44 45 46 47 48 49 50 51 52 28-Sep-04 5-Oct-04 12-Oct-04 19-Oct-04 26-Oct-04 2-Nov-04 8-Nov-04 16-Nov-04 22-Nov-04 30-Nov-04 7-Dec-04 14-Dec-04 20-Dec-04 5-Oct-04
<0.035
<0.043 12-Oct-04
<0.053
<0.055 19-Oct-04
<0.044
<0.064 26-Oct-04
<0.033
<0.012 2-Nov-04
<0.034
<0.033 8-Nov-04
<0.064
<0.058 16-Nov-04
<0.028
<0.044 22-Nov-04
<0.044
<0.029 30-Nov-04
<0.029
<0.037 7-Dec-04
<0.042
<0.042 14-Dec-04
<0.033
<0.070 20-Dec-04
<0.045
<0.047 27-Dec-04
<0.061
<0.064
<0.035
<0.032
<0.053
<0.053
<0.039
<0.052
<0.038
<0.043
<0.055
<0.036
<0.042
<0.033
<0.013
<0.024
<0.045
<0.044
<0.045
<0.058
<0.0 15
<0.035
<0.059
<0.042
<0.056
<0.031
<0.049 OOS S
<0.030
<0.031
<0.033
<0.030
<0.058
<0.029
<0.059
<0.034
<0.041
<0.053
<0.015
<0.017
<0.053
<0.042
<0.042
<0.063
<0.049
<0.032
<0.044
<0.032
<0.030
<0.032
<0.036
<0.053
<0.046
<0.033
<0.045
<0.042
<0.045
<0.038
<0.030
<0.030
<0.040
<0.037
<0.032
<0.031
<0.034
<0.013
<0.013
<0.045
<0.045
<0.059
<0.059
<0.036
<0.046
<0.033
<0.036
<0.036
<0.060
<0.033
<0.053
<0.036
<0.040
<0.040
<0.050
<0.042
<0.049
<0.038
<0.033
<0.048
<0.041
<0.040
<0.057
<0.048
<0.033
' Out of service due to road construction activities for plant security upgrades (planncd)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 31
TABLE 8.6 VEGETATION ODCM required samples denoted by
- units are pCi/kg, wet
<60
<60
<80 LOCATION TYPE DATE 1-131 Cs-134 Cs-137 COLLECTED BRANCH Turnip Greens 10-Jun-04
<49
<45
<63 RESIDENCE Collard greens 23-Jul-04
<49
<58
<42 (Site #52)*
Green cabbage 16-Jan-04
<40
<55
<63 Red cabbage 16-Jan-04
<39
<58
<50 DUNCAN Lettuce 16-Jan-04
<54
<53
<61 FAMILY Green cabbage 13-Feb-04
<49
<56
<23 FARMS Red cabbage 13-Feb-04
<35
<56
<63 (Site #62)*
Lettuce 13-Feb-04
<37
<44
<55 Green cabbage 10-Mar-04
<42
<35
<69 Red cabbage 10-Mar-04
<41
<29
<42 Lettuce 10-Mar-04
<46
<43
<55 Green cabbage 15-Apr-04
<43
<58
<69 Red cabbage 15-Apr-04
<46
<38
<57 Savoy cabbage 15-Apr-04
<57
<41
<49 Savoy cabbage 13-May-04
<59
<49
<76 Red cabbage 13-May-04
<58
<38
<70 Green cabbage 13-May-04
<44
<58
<55 Green cabbage 22-Oct-04
<44
<58
<66 Green cabbage 19-Nov-04
<39
<43
<36 Red cabbage 19-Nov-04
<43
<52
<52 Savoy cabbage 17-Dec-04
<39
<56
<48 Red cabbage 17-Dec-04
<45
<60
<74 Green cabbage 17-Dec-04
<55
<41
<79 MCCOY RESIDENCE NO SAMPLES AVAILABLE (Site #47)*
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 32
TABLE 8.7 MILK ODCMI required samples denoted by
- units are pCi/liter SAMPLE LOCATION DATE COLLECTED
<1
<15
<18
<60
<15 1-131 Cs-134 Cs-137 Ba-140 La-140 22-Apr-04
<1
<2
<1
<3
<1 18-May-04
<1
<1
<1
<3
<1 PAINTER 17-Jun-04
<1
<1
<1
<3
<1 GOATS 23-Jul-04
<1
<1
<1
<3
<1 (Site #51)*
20-Aug-04
<1
<1
<1
<3
<1 23-Sep-04
<1
<1
<1
<3
<1 22-Oct-04
<1
<1
<1
<3
<1 10-Nov-04
<1
<1
<1
<3
<1 22-Apr-04
<1
<1
<1
<4
<1 18-May-04
<1
<1
<1
<4
<1 1 1-Jun-04
<1
<1
<1
<3
<1 BARBER 16-Jul-04
<1
<1
<1
<3
<1 GOATS 13-Aug-04
<1
<1
<1
<3
<1 (Site #53)*
17-Sep-04
<1
<1
<1
<3
<1 15-Oct-04
<1
<1
<1
<3
<1 10-Nov-04
<1
<1
<1
<3
<1 17-Dec-04
<1
<1
<1
<3
<1 BRANCH GOATS (Site #54)
NO SAMPLES AVAILABLE Notes:
I Branch goats added to monitoring program in May.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 33
TABLE 8.8 DRINKING WATER ODCM required samples denoted by
- units arc pCi/liter
<2000 SAMPLE j
MONTH
<15
<15
<30
<15
<30
<15
<30
<15
<15
<18
<60
<15 QTRLY
<4.0 LOCATION IENDPOINT Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 11-3 Gross Beta BERRYMAN RESIDENCE (SITE #48)*
27-Jan-04
<11
<10
<21
<12
<30
<11
<20
<11
<13
<13 24-Feb-04
<9
<9
<18
<10
<22
<10
<17
<9
<8
<9 29-Mar-04
<14
<14
<27
<15
<27
<10
<23
<12
<12
<13 27-Apr-04
<9
<10
<17
<14
<24
<10
<18 <10
<11
<13 25-May-04
<12
<11
<22
<14
<28
<15 <19 <12
<11
<13 29-Jun-04
<12
<11
<23
<11
<30
<13
<23
<11
<11
<13 27-Jul-04
<13
<14
<29
<14
<29
<15
<22
<13
<13
<15 31-Aug-04
<11
<11
<20
<12
<27
<13
<18 <10
<10
<10 28-Sep-04
<13
<12
<23
<13
<30
<14
<19
<11
<11
<13 26-Oct-04
<10
<10
<20
<11
<22
<9
<16
<8
<8
<10 30-Nov-04
<13
<10
<21
<9
<19
<11
<21
<11
<10
<11 27-Dec-04
<13
<12
<26
<13
<30
<11
<18 <10
<10
<12
<41
<11
<3.1
<30
<14 L
<3.3
<50
<12
<275
<3.2
<33
<14 3.2 +/- 1.8
<37
<14
<3.2
<41
<14
<265
<3.0
<38
<15 [
<3.1
<31
<9
<3.2
<44
<14
<271 4.7+/- 1.8
<32
<10 [,7.T 3.1 +/- 1.7
<43
<13 L
4.8 +/- 1.7
<38
<12
<276
<3.0 GAVETTE RESIDENCE (SITE #55) 27-Jan-04
<12
<11
<26
<15
<27
<10
<22 <11
<9
<9 24-Feb-04
<14
<12
<25
<15
<29
<15
<21
<12
<12
<13 29-Mar-04
<11
<10
<16
<12
<17
<11
<17
<10
<10
<11 27-Apr-04
<14
<14
<27
<14
<30
<15
<25
<12
<12
<12 25-May-04
<12
<12
<23
<13
<29
<14
<19
<11
<10
<13 29-Jun-04
<9
<8
<23
<9
<21
<11
<17
<9
<8
<9 27-Jul-04
<13
<12
<29
<15
<26
<12
<21
<12
<12
<13 31-Aug-04
<15
<15
<23
<14
<25
<13
<26
<12
<13
<14 28-Sep-04
<14
<11
<23
<12
<30
<13
<19
<12
<11
<12 26-Oct-04
<15
<13
<26
<15
<27
<13
<24 <13
<12
<13 30-Nov-04
<13
<12
<23
<12
<29
<12
<20
<12
<11
<12 27-Dec-04
<13
<13
<27
<14
<30
<14
<24
<11
<12
<13
<37
<11 1 4.1+/-1.6
<43
<13 1.:
<2.4
<31
<15
<272 3.0+/- 1.7
<49
<14 [7 2.941.5
<39
<15 L_
<2.7
<33
<15
<263 3.8+/- 1.6
<43
<13
<2.4
<48
<14 __:
3.6 + 1.7
<38
<12
<272 4.9+/- 1.5
<44
<14 5.0 +/- 1.5
<38
<11 4.5 1.5
<48
<14
<279 3.3 2.5 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 34
TABLE 8.8 DRINKING WATER ODCMI required samples denoted by
- units are pCi/liter
<2000 SAMPLE MONTII
<15
<15
<30
<15
<30
<15
<30
<15
<15
<18
<60
<15 QTRLY
<4.0 LOCATION ENDPOINT Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 11-3 Gross Beta McARTHUR RESIDENCE (SITE #46)*
27-Jan-04
<13
<12
<23
<12
<24
<13
<18
<11 24-Feb-04
<13
<12
<30
<15 <28
<13
<23
<13 29-Mar-04
<11
<12
<24
<13
<30
<14
<20
<12 27-Apr-04
<13
<11
<21
<7
<21
<12
<16
<9 25-May-04
<12
<12
<24
<15
<26
<13
<18
<10 29-Jun-04
<13
<14
<25
<14
<30
<14
<18
<11 27-Jul-04
<10
<10
<16
<8
<18
<9
<14
<8 31 -Aug-04
<14
<15
<27
<13
<29
<14
<26
<13 28-Sep-04
<11
<10
<27
<14
<25
<12
<18
<10 26-Oct-04
<13
<13
<26
<13
<28
<15
<23
<13 30-Nov-04
<10
<9
<17
<8
<22
<9
<12
<7 27-Dec-04
<10
<9
<20 <11
<23
<9
<19
<8
<11
<14
<36
<15 2.7 +/- 1.5
<10
<14
<46
<13
<2.5
<11
<13
<41
<14
<275
<2.5
<9
<9
<32
<15 3.3 + 1.4
<10
<11
<41
<12 L
<2.6
<12
<14
<44
<14
<265
<2.3
<8
<10
<29
<15 F
<2.4
<13
<14
<44
<10 E J-'^_
<2.4
<11
<12
<33
<9
<262 5.1 + 1.4
<13
<13
<42
<13 3.3 +/- 1.4
<10
<8
<32
<15 L.
4.1 +/- 1.4
<7
<12
<32
<13
<278 2.5 +/- 1.5 I.
CIIOWANEC RESIDENCE (SITE #49)
- 27-Jan-04
<12
<10
<21
<15
<26
<12
<22
<10 24-Feb-04
<13
<12
<27
<15
<29
<12
<21
<13 29-Mar-04
<12
<10
<19
<12
<30
<13
<22
<10 27-Apr-04
<14
<12
<25
<14
<29
<15
<20
<12 25-May-04
<10
<10
<20
<12
<30
<11
<16
<10 29-Jun-04
<14
<12
<29
<14
<28
<14
<26
<13 27-Jul-04
<12
<12
<20
<13
<30
<13
<23
<13 31-Aug-04
<12
<13
<22
<14
<29
<15 <21
<11 28-Scp-04
<13
<11
<27
<11
<30
<12
<22
<11 26-Oct-04
<10
<13
<26
<12
<28
<14
<17
<11 30-Nov-04
<11
<13
<27
<14
<30
<14
<18
<11 27-Dcc-04
<12
<14
<29 <14
<30
<12
<21
<12
<11
<12
<12
<11
<11
<12
<11
<12
<10
<11
<10
<15
<11
<13
<11
<11
<10
<13
<9
<12
<10
<13
<12
<12
<39
<11
<43
<15 L I
<46
<14
<271
<43
<12
<36
<15 sL::
<39
<15
<260
<40
<14
<44
<14 LF-7
<40
<9
<274
<39
<13
<39
<11
<41
<11
<280
<2.3
<2.6
<2.4
<2.1
<2.6
<2.3
<2.4
<2.4
<1.9
<2.0
<1.9
<2.3 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 35
TABLE 8.9 GROUNDWATER ODCM required samples denoted by
- units are pCi/liter SAMPLE DATE
<15
<15
<30
<15
<30
<15
<0
<15
<15
<18
<60
<15
<2000 LOCATION COLLECTED Mn-54 Co-58 Fc-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 11-3 WELL 27ddc (Site #57)*
27-Jan-04
<9
<11
<23
<14
<23
<13
<15
<10
<9
<10
<36
<15
<273 27-Apr-04
<11
<10
<21
<13
<24
<12
<17
<10
<10
<11
<32
<15
<278 27-Jul-04
<9
<10
<21
<9
<20
<12
<16
<9
<9
<10
<31
<13
<268 26-Oct-04
<11
<11
<21
<11
<26
<14
<19
<11
<11
<11
<42
<15
<273 I.
WELL 34abb (Site #58)*
27-Jan-04
<12
<12
<24
<13
<26
<12
<19
<12
<10
<12
<43
<15
<273 27-Apr-04
<11
<10
<19
<10
<21
<11
<18
<11
<10
<11
<37
<15
<276 27-Jul-04
<13
<13
<23
<15
<28
<15
<21
<13
<12
<15
<43
<14
<271 26-Oct-04
<13
<12
<21
<13
<24
<15
<21
<12
<12
<13
<42
<14
<272 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 36
TABLE 8.10 SURFACE WATER ODCM required samples denoted by
- units are pCi/liter SAMPLE LOCATION MONTH
- 15
<15
<30
<15
<30
<15
<30 ENDPOINT Mn-54 Co-58 Fc-59 Co-60 Zn-65 Nb-95 Zr-95
<15
<15
.<18
<60
<15.
1-131 Cs-134 Cs-137 Ba-140 La-140
<3000 H-3 RESERVOIR (Site #60)
- 27-Jan-04
<12
<15
<27
<14
<28
<14
<22 24-Feb-04
<11
<10
<20
<11
<21
<11
<17 29-Mar-04
<7
<7
<14
<8
<18
<7
<12 27-Apr-04
<11
<11
<23
<13
<25
<14
<18 25-May-04
<15
<15
<21
<14
<29
<15
<22 29-Jun-04
<12
<11
<27
<13
<27
<13
<21 27-Jul-04
<13
<14
<24
<15
<25
<13
<27 31-Aug-04
<12
<11
<28
<15
<27
<11
<16 28-Sep-04
<10
<12
<28
<15
<18
<11
<18 26-Oct-04
<13
<11
<25
<12
<23
<12
<22 30-Nov-04
<11
<11
<25
<13
<29
<12
<20 27-Dec-04
<13
<12
<26
<14
<24
<14
<20
<13
<12
<8
<15
<14
<12 15+/-8
<11 9+/-9
<12
<12
<13
<11
<10
<7
<12
<12
<11
<10
<10
<10
<11
<10
<11
<12
<11
<8
<12
<15
<13
<13
<11
<11
<11
<12
<12
<42
<36
<27
<44
<51
<40
<47
<34
<37
<41
<43
<42
<14 L
_i
<8
<280
<11 F-
^
<13 L-.^
<15
<267
<14
<10
<12
<275
<15
<12
<15
<279 EVAP POND 1 (Site #59)
- 27-Jan-04
<15
<11
<26
<14
<25
<15
<19
<12 24-Feb-04
<11
<12
<24
<10
<30
<11
<19
<9 29-Mar-04
<13
<12
<23
<13
<29
<10
<20
<10 27-Apr-04
<12
<11
<22
<15
<27
<12
<21
<12 25-May-04
<9
<10
<26
<13
<30
<10
<14
<10 29-Jun-04
<10
<8
<24
<15
<27
<10
<19
<8 27-Jul-04
<11
<13
<25
<13
<30
<12
<22
<10 31-Aug-04
<11
<10
<23
<13
<30
<12
<20 21 + 12a 28-Sep-04
<12
<13
<30
<13
<30
<13
<25
<12 26-Oct-04
<11
<10
<23
<13
<30
<12
<17
<9 30-Nov-04
<13
<13
<27
<14
<30
<14
<20
<12 27-Dec-04
<11
<9
<26
<13
<25
<9
<15
<11
<12
<11.
<10
<11
<8
<10
<11
<9
<10
<9
<10
<9
<14
<11
<10
<12
<11
<12
<12
<12
<13
<11
<11
<10
<44
<33
<34
<37
<32
<31
<38
<39
<40
<34
<42
<32
<13
<12
<9 954 +/- 181
<13 fT TT
<15
<7 12664+/-184
<12
<12
<10 864 176
<12.
<150 67 17_
<15 R674 17R EVAP POND 2 (Site #63)
- 27-Jan-04
<10
<10
<23
<11
<26
<10
<20 24-Feb-04
<12
<11
<28
<15
<30
<11
<21 29-Mar-04
<12
<14
<26
<13
<25
<11
<22 27-Apr-04
<10
<11
<24
<12
<24
<10
<17 25-May-04
<11
<11
<25
<12
<30
<11
<19 29-Jun-04
<11
<12
<26
<13
<24
<14
<21 27-Jul-04
<12
<11
<29
<14
<25
<13
<23 31-Aug-04
<14
<11
<27
<13
<30
<11
<22 28-Scp-04
<10
<12
<27
<13
<30
<12
<22 26-Oct-04
<14
<12
<25
<15
<29
<14
<20 30-Nov-04
<10
<10
<23
<14
<30
<11
<20 27-Dec-04
<12
<12
<24
<14
<30
<12
<24
<12
<12
<15
<11
<12
<13
<15
<12
<13
<14
<11
<12
<10
<10
<11
<10
<11
<12
<12
<11
<10
<12
<11
<11
<14
<14
<14
<11
<13
<15
<16
<14
<14
<15
<13
<15
<37
<42
<42
<32
<39
<38
<45
<46
<42
<44
<36
<44
<14 1.-.
<14 uL f-:
<15 1284+/- 184
<14 r
<14
<15 1826+/- 195
<15
<12 L
<10 1558+/- 187
<13 F
f l
<13 IL:.-
<12 1294+ 186 a Sample recount rcsult was 18 + 7 pCi/litcr PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 37
TABLE 8.10 SURFACE WATER ODCMI required samples denoted by
- units are pCi/liter SAMPLE
.1 DATE LOCATION COLLECTED Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 H-3 I
WRF INFLUENT 6-Jan-04 13-Jan-04 20-Jan-04 27-Jan-04 3-Feb-04 10-Feb-04 17-Feb-04 24-Feb-04 I-Mar-04 9-Mar-04 16-Mar-04 23-Mar-04 30-Mar-04 6-Apr-04 27-Apr-04 4-May-04 I 1-May-04 17-May-04 25-May-04 I-Jun-04 8-Jun-04 15-Jun-04 22-Jun-04 29-Jun-04 6-Jul-04 13-Jul-04 20-Jul-04 27-Jul-04 3-Aug-04 10-Aug-04
<10
<9
<17
<13
<24
<10
<14 11 i 8
<10
<11
<9
<30
<13
<29
<11
<19 23 12
<10
<11
<11
<21
<13
<19
<12
<17 20 10
<10
<9
<9
<18
<15
<24
<10
<18 35 10
<10
<10
<11
<20
<8
<25
<10
<14 14 8
<9
<9
<10
<25
<13
<30
<8
<23 46 12
<8
<13
<11
<26
<15
<23
<13
<21 41 12
<8
<15
<13
<24
<15
<24
<14
<20 72 15
<12
<10
<10
<19
<11
<24
<10
<14 57i 13
<7
<9
<10
<18
<10
<18
<10
<17 135 19
<8
<9
<9
<11
<10
<21
<9
<15 47 10
<7
<12
<11
<25
<14
<28
<15
<22 43 13
<9
<11
<10
<20
<9
<20
<10
<20 63 +/- 12
<9
<12
<15
<30
<10
<29
<14
<22 36 +/- 13
<12
<10
<9
<23
<14
<19
<11
<15 71 +/- 13
<9
<11
<11
<20
<14
<23
<10
<21 15 +/-f 9
<9
<9
<11
<25
<13
<30
<13
<20 23 + 9
<11
<12
<10
<22
<14
<24
<12
<22
<15
<11
<9
<10
<23
<8
<20
<9
<17 27 + 11
<10
<13
<11
<18
<14
<28
<11
<18 24+ 13
<11
<12
<11
<25
<15
<27
<14
<20 14 + 11
<11
<12
<13
<24
<11
<30
<9
<16 24 8
<12
<11
<11
<25
<13
<29
<11
<19 20 11
<11
<9
<12
<22
<11
<20
<11
<15 18 8
<9
<11
<12
<26
<15
<28
<12
<24 27 10
<12
<9
<9
<19
<11
<23
<8
<18 21 +8
<8
<9
<9
<20
<10
<25
<9
<14 69+ 12
<8
<7
<10
<23
<12
<25
<10
<17 29 9
<9
<12
<11
<21
<14
<26
<10
<19 26 9
<9
<12
<13
<28
<12
<27
<12
<25 18 10
<12
<12
<13
<9
<11
<9
<11
<13
<15
<11
<9
<8
<14
<10
<14
<12
<13
<12
<14
<12
<13
<11
<14
<12
<9
<10
<10
<7
<10
<12
<14
<30
<15
<37
<12
<31
<14
<33
<14
<282
<28
<15
<36
<13
<34
<8
<48
<12
<288
<32
<13.
<28
<15
<28
<12
<41
<11
<36
<14
<283
<46
<13 7
<34
<13
<284
<31
<15.
<31
<15
<46
<15
<37
<15
<277
<35
<13
<42
<12
<32
<12
<34
<15
<30
<14
<279
<40
<13
<32
<13
<29
<13
<32
<15
<279
<28
<15
<43
<15 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 38
TABLE 8.10 SURFACE WATER ODCM required samples denoted by
- units are pCi/iiter SAMPLE LOCATION DATE COLLECTED.Mn-54 Co-58 Fe-59.Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 H-3 WRF INFLUENT (continued) 17-Aug-04 24-Aug-04 31-Aug-04 7-Sep-04 14-Sep-04 21-Sep-04 28-Sep-04 5-Oct-04 12-Oct-04 22-Oct-04 26-Oct-04 2-Nov-04 8-Nov-04 16-Nov-04 22-Nov-04 30-Nov-04 7-Dec-04 14-Dec-04 20-Dec-04 27-Dec-04
<13
<14
<27
<15
<30
<14
<22
<9
<11
<24
<13
<29
<10
<17
<11
<13
<28
<15
<28
<12
<24
<11
<10
<23
<13
<30
<11
<19
<13
<12
<24
<12
<28
<11
<19
<12
<12
<25
<13
<30
<13
<22
<14
<13
<29
<14
<29
<14
<21
<12
<11
<24
<12
<26
<15
<20
<14
<12
<27
<15
<23
<13
<21
<10
<11
<23
<11
<24
<10
<21
<12
<13
<24
<15
<27
<14
<21
<14
<14
<25
<15
<28
<15
<24
<11
<10
<21
<11
<30
<13
<19
<12
<12
<26
<15
<30
<14
<22
<11
<12
<23
<14
<30
<13
<23
<12
<11
<29
<12
<25
<13
<24
<14
<14
<25
<14
<27
<15
<25
<12
<10
<24
<13
<28
<13
<19
<13
<12
<24
<14
<27
<15
<23
<13
<12
<23
<11
<25
<15
<22 24 + 10 14+/-9 18+/- 14 41 I 11 16+/- 11 32 +/- 13 37 +/- 13 15+/-9 27 +/- 14 61 +/- 15 52 +/- 13 19+/- 12 21 +/- 11
<15 34 +/- 18
<13 193 +/- 29 55 +/- 14 105 +/- 18 12+/-9
<11
<13
<10
<10
<11
<14
<11
<12
<11
<11
<12
<15
<13
<12
<10
<14
<13
<13
<10
<11I
<12
<14
<10
<12
<11
<12
<11
<14
<11
<13
<11
<12
<11
<13
<12
<13
<11
<13
<11
<12
<40
<12 F-
-_ 1
<36
<15
<44
<15
<276
<31
<12
<42
<15
<43
<14 L'"
<40
<11
<280
<41
<12
<44
<12
<46
<12 L :-
<42
<12
<281
<37
<15
<41
<12
<41
<13
<46
<12 L
<31
<13
<277
<42
<15
<37
<13
<43
<15
<42
<12 SEDIMENT.
BASIN #2 24-Feb-04 9-Mar-04 6-Apr-04 13-Apr-04 2-Nov-04 8-Nov-04 16-Nov-04 22-Nov-04 30-Nov-04 7-Dec-04 14-Dec-04 20-Dec-04 27-Dec-04
<12
<13
<28
<14
<29
<13
<23
<12
<12
<24
<15
<27
<12
<21
<10
<7
<17
<7
<21
<9
<15
<8
<9
<17
<10
<21
<8
<17
<15
<13
<22
<13
<29
<14
<27
<13
<15
<27
<13
<30
<14
<25
<12
<12
<23
<15
<24
<10
<21
<11
<10
<22
<10
<20
<9
<17
<14
<11
<29
<10
<29
<13
<21
<13
<10
<21
<12
<26
<12
<19
<13
<12
<24
<13
<25
<14
<21
<13
<12
<24
<13
<30
<13
<22
<10
<10
<26
<13
<22
<12
<14
<11
<12
<8
<8
<12
<11
<8
<9
<12
<9
<11
<11
<9
<11
<13
<11
<12
<8
<8
<8
<9
<14
<14
<11
<14
<10
<11
<8
<11
<12
<12
<9
<13
<13
<15
<12
<13
<44
<13
<44
<11
<29
<11
<31
<15
<45
<9
<45
<12
<36
<13
<30
<15
<45
<13
<34
<15
<35
<15
<38
<11
<294 384 +/- 173
<286
<283 333 + 180 482 + 172
<273
<264 278 I 167
<288 331 +/- 174 423 +/- 174
<294
<9
<13
<31
<11 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 39
TABLE 8.11 SLUDGE/SEDIMENT ODCM required samples denoted by
- units arc pCi/kg, wet SAMPLE LOCATION DATE COLLECTED 1-131 Cs-134 Cs-137 In-111 WRF CENTRIFUGE WASTE SLUDGE 6-Jan-04 13-Jan-04 20-Jan-04 27-Jan-04 3-Feb-04 10-Feb-04 17-Feb-04 24-Feb-04 I-Mar-04 9-Mar-04 16-Mar-04 23-Mar-04 30-Mar-04 6-Apr-04 20-Apr-04 27-Apr-04 4-May-04 I 1-May-04 17-May-04 25-May-04 I-Jun-04 8-Jun-04 15-Jun-04 22-Jun-04 29-Jun-04 6-Jul-04 13-Jul-04 20-Jul-04 29-Jul-04 3-Aug-04 10-Aug-04 17-Aug-04 24-Aug-04 31 -Aug-04 7-Sep-04 14-Sep-04 21-Sep-04 28-Sep-04 5-Oct-04 12-Oct-04 26-Oct-04 2-Nov-04 8-Nov-04 16-Nov-04 22-Nov-04 30-Nov-04 7-Dec-04 14-Dec-04 20-Dec-04 27-Dec-04 849i 116 417 i 71 396i 72 330i 62 452 i 75 402 i 69 203 +/- 44 278 i 56 571 +/- 87 643 +/- 91 356 i 68 791 +/- 101 575i 89 787i+/- 111 743 i 104 466478 525 +/- 74 215433 286 :t 55 493 + 71 760 +/-t 106 720 102 1116+/- 137 432 74 680+/- 87 444 4+/- 73 8064 110 955 +/- 125 1431 +/- 162 1288 +/- 149 1013 131 951 +/- 113 590 +/- 79 943+/-E 125 1093 +/- 141 1146+/- 146 880+/- 118 773 +/- 105 897+/- 108 1007 +/- 130 296 +/- 52 10064 120 629 +/- 94 316 +/- 55 499 +/- 76 413 +/- 63 376 +/- 66 473 +/- 68 1050+/- 128 10144 123
<24
<23
<31
<24
<21
<25
<24
<39
<12
<28
<39
<20
<24
<30
<34
<32
<23
<12
<29
<16
<57
<27
<27
<9
<19
<20
<26
<26
<25
<23
<29
<21
<20
<31
<19
<6
<23
<30
<19
<23
<22
<14
<24
<21
<25
<24
<27
<25
<29
<24
<25
<30
<32
<29
<35
<22
<41
<33
<30
<32
<45
<29
<37
<37
<39
<30
<24
<12
<26
<29
<34
<20
<26
<32
<23
<12
<26
<20
<28
<26
<30
<22
<13
<27
<7
<28
<37
<7
<24
<25
<23
<28
<8
<27
<31
<24
<21
<22
<22
<24 32 +/- 31 13 +/- 8 50 4 25 39 +/- 19 51 +/- 26 53 +/- 27 37+/- 25 41 +/- 24 51 +/- 23 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 40
TABLE 8.11 SLUDGE/SEDIMENT ODCM required samples denoted by
- Units are pCi/kg, wet DATE SAMPLE LOCATION COLLECTED 1-131 Cs-134 Cs-137 (N) 18-Nov-04 13+7
<7
<11 (E) 18-Nov-04 7+7
<9
<11 EVAP POND I (S) 18-Nov-04 12+/-8
<9
<11 (W) 18-Nov-04
<8
<11 (C)
No sediment obtainable (N) 18-Nov-04
<10 14+/-7 (E) 18-Nov-04
<10 18+/-9 EVAP POND 2 (S) 18-Nov-04
<13 15 +/- 11 (W) 18-Nov-04
<9 12+ 11 (C) 18-Nov-04
<12 18 +/-10 COOLING TOWER LOUVER/PIPING SCALE UNIT APPROXIMATE ISOTOPE ACTIVITY RANGE SAMPLE TYPE FRACTION OF SAMPLES CYCLE VOLUME (yd3)
(pCi/liter)
ABOVE MDA lRIO 70 n/a
<MDA CW(PW piping scale none IRI 8.5 n/a
<MDA CW/PW piping scale none 2R1 1 6
Co-60 3.41E-07 to 8.17E-07 CW/PW piping scale 8 of 8 Cs-137
<MDA to 5.62E-08 3 of 8 2R1 1 150 Co-60
<MDA to 1.07E-06 Cooling tower louver scale 25 of 32 3R10 30 n/a
<MDA Cooling tower louver scale none PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 41
FIGURE 8.1 HISTORICAL GROSS BETA IN AIR (WEEKLY SYSTEM AVERAGES)
Gross Beta in Air 1994-2004 1.000 -
I 0.100 -
EI 0.010 0.001 I
i i
i I
"I t.o o
%Oa r-oc
- o.
o, e
o 0%
0%
el 0
0%
0%
w 0
0 w
0 cc cc cc Q
U U
U U
Q cm U
-S
)
Q Q
Sc PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 42
FIGURE 8.2 HISTORICAL GROSS BETA IN AIR (ANNUAL SITE TO SITE COMPARISONS) COMPARED TO PRE-OP
+
Gross Bcta in Air Particulates-pre-operational (1981-1985) 1994 1995 1996 1997
-1998 control location 1999 0.100 2000 0.090 2001 0.080 2002 2003 0.070 x
2004 0.060 Q 0.050 0.040 0.020,
0.010 0.000 I
Vioo l
l%
l0 o
m
-Lo ation U
Sample Location PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 43
FIGURE 8.3 GROSS BETA IN DRINKING WATER 10 McArthur (site #46)
Gavette (site #55)
- Berryman (site #48)
Chowanec (site #49)
I-0.
5
+
N 0
I I
I I
I Jan Feb Mar Apr May Jun I
I I
I I
I Jul Aug Sep Oct Nov Dec NOTES:
MDA values plotted as activity (e.g. <2.3 is plotted as 2.3)
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 44
FIGURE 8.4 EVAPORATION POND TRITIUM ACTIVITY 5000 4000 3000 2000 1000 0
\\0\\0O cc c-ct t-0 ow a,
a\\
C 0
0 0
'1 q
I'D t-00 ON 0
C4 m
'T 00 0o oo w0 00 00 00 00 00 c
0 00 0%
0%
0\\
0%
0c 0%
0%
0%
0 0%
0%
T 9 9 9 9
0
,o S
S~0 W
p S
to u
S So S
4 So S
=
a C
S C
S S
=
= li 0.
1 0 94 0 P.
0 =
0 0
3 :
= 0 z
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g g
-b Q
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S, PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT.- 2004 45
- 9.
Thermoluminescent Dosimeter (TLD) Results and Data The environmental TLD used at PVNGS is the Panasonic Model 812 Dosimeter. The Model 812 is a multi-element dosimeter combining two elements of lithium borate and two elements of calcium sulfate under various filters.
TLDs were placed in forty-nine locations from one to thirty-five miles from the PVNGS.
TLD locations are shown in Figures 2.1 and 2.2 and are described in Table 9.1. TLD results for 2004 are presented in Table 9.2. Historical environmental gamma radiation results for 1985 through 2004 are presented in graphical form on Figure 9.1 (excluding transit control TLD #45).
Figure 9.2 depicts the environmental TLD results from 2004 as compared to the pre-operational TLD results (excluding sites #41, #43, and #46-50 as they were either deleted or had no pre-op TLD at these locations for comparison). The site to site comparisons indicate a direct correlation with respect to pre-operational results. It is evident that the offsite dose, as measured by TLDs, has not changed since Palo Verde became operational.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 46
TABLE 9.1 TLD SITE LOCATIONS (distances and directions are relative to Unit 2 in miles)
- TLD SITE I
2 3
4 5
6*
7 8
9 10 11 12 13 14 15 16 17 i8 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 LOCATION E30 ENE24 E21 E16 ESElI SSE31 SE7 SSE4 S5 SE5 ESE5 E5 Nl NNE2 NE2 ENE2 E2 ESE2 SE2 SSE2 S3 SSW3 W5 SW4 WSW5 SSW4 SWI WSW1 WI WNW1 NW1 NNW1 NW4 NNW5 NNW8 N5 NNE5 NE5 ENE5 N3 ESE3 N8 LOCATION DESCRIPTION Goodyear Scott-Libby School Liberty School Buckeye Palo Verde School APS Gila Bend substation Old US 80 and Arlington School Rd Southern Pacific Pipeline Rd.
Southern Pacific Pipeline Rd.
355h Ave. and Elliot Rd.
339th Ave. and Dobbins Rd.
339h Ave. and Buckeye-Salome Rd.
N site boundary NNE site boundary NE site boundary, WRF access road ENE site boundary E site boundary ESE site boundary SE site boundary SSE site boundary S site boundary SSW site boundary N of Elliot Rd N of Elliot Rd N of Elliot Rd S of Elliot Rd SW site boundary WSW site boundary W site boundary WNW site boundary NW site boundary NNW site boundary S of Buckeye Rd 395th Ave. and Van Buren St.
Tonopah Wintersburg Rd. and Van Buren St.
363"d Ave. and Van Buren St.
355th Ave. and Buckeye Rd.
343'd Ave. N of Broadway Rd.
Wintersburg Arlington School Ruth Fisher School PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 47
TABLE 9.1 TLD SITE LOCATIONS (distances and directions are relative to Unit 2 in miles)
- TLD SITE 44*
45**
46 47 48 49 50 LOCATION ENE35 Onsite ENE30 E35 E24 ENEI I WNW5 LOCATION DESCRIPTION El Mirage Central Laboratory (lead pig)
Litchfield Park School Littleton School Jackrabbit Trail Palo Verde Rd.
S of Buckeye-Salome Rd.
- Site #6 and site #44 are the control locations.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 48
TABLE 9.2 2004 ENVIRONMENTAL TLD RESULTS Units are mrem/std qtr TLD Site #
Ist Quarter 2nd Quarter 3rd Quartcr 4th Quarter Average 1
22.9 22.8 22.9 23.9 23.1 2
19.8 20.2 21.3 21.3 20.7 3
22.4 22.4 23.2 22.7 22.7 4
21.3 22.2 21.8 22.5 22.0 5
20.5 20.3 20.7 19.7 20.3 6(control) 24.4 25.1 25.4 25.9 25.2 7
23.9 24.2 23.1 23.7 23.7 8
22.3 22.5 21.3 22.9 22.3 9
26.2 25.7 26.1 26.9 26.2 10 22.2 22.7 22.2 22.5 22.4 11 24.1 23.5 23.5 23.4 23.6 12 21.4 21.6 21.7 21.5 21.6 13 24.2 23.2 24.3 23.7 23.9 14 22.5 24.1 23.9 24.2 23.7 15 22.3 22.4 23.1 22.8 22.7 16 20.8 20.2 21.2 20.2 20.6 17 23.8 23.4 24.0 23.5 23.7 18 22.6 21.8 22.8 21.9 22.3 19 23.1 23.5 23.7 24.2 23.6 20 22.9 22.5 22.2 22.7 22.6 21 23.9 24.5 24.2 23.9 24.1 22 24.3 23.8 24.9 24.5 24.4 23 21.3 21.8 21.4 22.2 21.7 24 21.6 20.9 21.1 21.3 21.2 25 22.4 21.9 22.5 21.4 22.1 26 26.1 25.5 27.1 26.3 26.3 27 27.0 26.3 27.2 25.6 26.5 28 24.4 24.0 24.9 24.1 24.4 29 24.1 24.1 24.3 23.2 23.9 30 24.6 24.3 25.3 25.3 24.9 31 22.0 21.8 22.2 22.5 22.1 32 24.7 23.6 24.5 24.0 24.2 33 24.2 24.2 24.8 23.9 24.3 34 26.9 26.2 25.9 26.6 26.4 35 29.5 29.0 29.6 29.5 29.4 36 23.8 23.6 23.8 24.0 23.8 37 22.7 21.6 23.4 22.0 22.4 38 26.9 25.6 27.3 26.1 26.5 39 22.5 22.5 22.6 23.4 22.8 40 24.4 23.4 24.5 23.4 23.9 41 22.8 21.7 23.0 22.6 22.5 42 25.6 24.8 25.4 25.0 25.2 44 (control) 17.9 19.0 19.0 19.5 18.9 45 (transit control) 4.8 5.7 5.6 5.5 5.4 46 24.9 25.6 26.4 25.4 25.6 47 22.0 21.4 22.3 23.5 22.3 48 22.6 22.4 22.5 23.4 22.7 49 21.2 21.1 22.2 21.7 21.6 so 17.9 18.4 18.2 18.8 18.3 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2004 49
FIGURE 9.1 NETWORK ENVIRONMENTAL TLD EXPOSURE RATES 30.0 28.0 26.0 J
z 24.0 2
22.0 20.0 18.0 mR/std qtr BBASELINE
- - - - IOYEARMEAN o'n " %O O tN-t- 00 00 O
C0 C 0
0-M M
' t
'0
' %0 N N 000 0%
a a
0 0-M M7 ~t w000000000 0000000000w0% 0% 07% 0% c0% 0% 0% 07% 0% 0% 0% a, 0% 0% 0 0% 0% 0% 0% 0% 0000000000 4
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C
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- e En ;- ch 0-En D-Y ch ;-
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- A 05
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Cd m :c C) cE r Evt~~~~~~~~coS~~~.
0.vmc~zS
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vt~Su
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FIGURE 9.2 ENVIRONMENTAL TLD COMPARISON - PRE-OPERATIONAL VS 2004 35 T Control TLD 30 a,< 25 U,
S 20 3 15 Cn 0
l0 5
10
.Is 0
1 3
5 7
9 1 1 13 15 17 19 21 23 25 27 29 31 33 35 37 39 42 45 TID Number TLD #41 monitoring location was deleted in June, 2000 due to school closing (this TLD was placed at new school in 2004)
TLD #43 monitoring location was deleted in 1994 due to school closing TLDs #46-50 are not included since they were not included in the pre-op monitoring program PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 51
- 10.
Land Use Census 10.1.
Introduction In accordance with the PVNGS ODCM, Section 6.2, the annual Land Use Census was performed within five miles of Unit 2 containment in May-June 2004.
Observations were made in each of the 16 meteorological sectors to determine the nearest milking animals, residences, and gardens of greater than 500 square feet. This census was completed by driving the roads and speaking with residents.
The results of the Land Use Census are presented in Table 10.1 and discussed below.
The directions and distances listed are in sectors and miles from the Unit 2 containment.
10.2.
Census Results Nearest Resident There were no changes in nearest resident status. Dose calculations indicated the highest dose to be 0.177 mrem.
Milk Animal There was one (1) change in nearest milk animal (goat) status. Dose calculations indicated the highest dose to be 1.03 mrem. This new location was added to the REMP.
Vegetable Gardens There were four (4) changes in nearest garden status. Dose calculations indicated the highest dose to be 0.419 mrem. One new garden location replaced an existing location.
See Table 10.1 for a summary of the specific results and Table 2.1 for current sample locations.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 52
TABLE 10.1 2004 LAND USE CENSUS (Distances and directions are relative to Unit 2 in miles)
NEAREST NEAREST NEAREST CALCULATED DOSE SECTOR RESIDENT GARDEN MILK ANIMAL (mrem)
CHANGE l
(COW/GOAT)
FROM 2003 N
1.55 1.79 NONE Resident 6.34E-02 Garden 2.88E-01 NNE 1.52 2.05 2.05 Resident 1.21E-01 Garden Garden 4.19E-01 Milk animal l
Milk 1.03E+00
_Milkanimal NE 2.16 NONE 3.91 Resident 1.43E-01 l
Milk 6.31E-01 ENE 2.67 4.72 4.84 Resident 9.50E-02 Garden Garden 1.80E-01 l
Milk 2.64E-01 E
2.81 NONE NONE Resident 8.34E-02 Garden ESE 3.17 3.85 NONE Resident 8.39E-02 Garden 2.95E-01 SE 4.10 NONE NONE Resident 8.87E-02 SSE NONE NONE NONE NA S
NONE NONE NONE NA SSW NONE NONE NONE NA SW 1.39 NONE NONE Resident 1.77E-01 lWSW 0.75 NONE NONE Resident 1.03E-01 l W 0.70 NONE NONE Resident 7.80E-02 WNW 2.67 NONE NONE Resident 1.96E-02 NW 1.12 NONE NONE Resident 5.92E-02 NNW 1.30 3.86 NONE Resident 5.96E-02 Garden l
Garden 8.39E-02 COMMENTS:
Dose calculations were performed using the GASPAR code and 2003 meteorological data and source term. Dose reported for each location is the total for all three PVNGS Units and is the highest individual dose identified (organ, bone, total body, or skin).
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 53
- 11.
Summary and Conclusions The conclusions are based on a review of the radio assay results and background gamma radiation measurements for the 2004 calendar year. Where possible, the data were compared to pre-operational sample data.
All sample results for 2004 are presented in Tables 8.1-8.11 and do not include observations of naturally occurring radionuclides. with the exception of gross beta in air and gross beta in drinking water. Table 11.1 summarizes the ODCM required samples and is in the format required by the NRC BTP on Environmental Monitoring.
1-131 concentrations identified on occasion in the Evaporation Ponds, WRF Influent, WRF Centrifuge sludge, and Reservoir is the result of offsite sources and appears in the effluent sewage from Phoenix. The levels of I-131 detected in these locations are consistent with levels identified in previous years.
Tritium concentrations identified in surface water onsite have been attributed to PVNGS gaseous effluent releases and secondary plant releases. These concentrations are consistent with historical values.
Natural background radiation levels are consistent with measurements reported in previous Pre-operational and Operational Radiological Environmental annual reports, References I and 2.
There ue'ere no measurable radiological impacts on the envirolnment dute to PVANGS operations in 2004.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 54
TABLE I1.1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL
SUMMARY
Palo Verde Nuclear Generating Station Docket Nos. STN 50-528/529/530 Maricopa County, Arizona Calendar Year 2004 Medium or Lower Limit of All Indicator Location with Highest Annual Mean Control Pathway Type and Total Detection Locations Locations Number of Sampled Number of (LLD)
Name Mean (IV Nonroutine (Unit of Analyses (from Table Mean (f)'
Distance and Range Mean (f)a Reported Measurement)
Performed 6.1)
Range Direction Range Measurements Direct Radiation TLD - 196 NA 23.4 (184/184)
Site #35 29.4 (4/4) 22.0 (8/8) 0 (mrem/std. qtr.)
17.9-29.6 8 miles 3350 29.0 -29.6 17.9-25.9 Air Particulates Gross Beta - 466 0.010 0.032 (414/414)
Site #15 0.034 (52/52) 0.033 (52/52) 0 (pCUn 3) 0.012 -0.080 2 miles 45° 0.014 -0.074 0.013 - 0.079 Gamma Spec.
Composite-36 Cs-134 0.05
<LLD NA
<LLD
<LLD 0
Cs-137 0.06
<LLD NA
<LLD
<LLD 0
Air Radioiodine Gamma Spec. - 466 (pCi/m3) 1-131 0.07
<LLD NA
<LLD
<LLD 0
Broadleaf Gamma Spec. -23 Vegetation I-131 60
<LLD NA
<LLD
<LLD 0
(pCi/Kg-wet)
Cs-134 60
<LLD NA
<LLD
<LLD 0
Cs-137 80
<LLD NA
<LLD
<LLD 0
Groundwater 11 8 2000
<LLD NA
<LLD NA 0
(pCi/liter)
Gamma Spec. - 8 Mn-54 15
<LLD NA
<LLD NA 0
Fe-59 30
<LLD NA
<LLD NA 0
Co-58 15
<LLD NA
<LLD NA 0
Co-60 15
<LLD NA
<LLD NA 0
Zn-65 30
<LLD NA
<LLD NA 0
Zr-95 30
<LLD NA
<LLD NA 0
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 55
TABLE 11.1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL
SUMMARY
Palo Verde Nuclear Generating Station Docket Nos. STN 50-528/529/530 Maricopa County, Arizona Calendar Year 2004 Medium or Lower Limit of All Indicator Location with Highest Annual Mean Control Pathway Type and Total Detection Locations Locations Number of Sampled Number of (LLD)
Name Mean (fa Nonroutine (Unit of Analyses (from Table Mean (f)
Distance and Range Mean (f)
Reported Measurement)
Performed 6.1)
Range Direction Range Measurements Nb-95 15
<LLD NA
<LLD NA 0
Groundwater 1-131 15
<LLD NA
<LLD NA 0
(pCiAiter)
Cs-134 15
<LLD NA
<LLD NA 0
-continued-Cs-137 18
<LLD NA
<LLD NA 0
Ba-140 60
<LLD NA
<LLD NA 0
La-140 15
<LLD NA
<LLD NA 0
Gross Beta-48 4.0 3.8 (19/48)
Site #55 4.0 (9/12)
NA 0
2.5 -5.1 3 miles 2200 2.9-5.0 H 16 2000
<LLD NA
<LLD NA 0
Gamma Spec. - 48 Drinking Water Mn-54 15
<LLD NA
<LLD NA 0
(pCi/liter)
Fe-59 30
<LLD NA
<LLD NA 0
Co-58 15
<LLD NA
<LLD NA 0
Co-60 15
<LLD NA
<LLD NA 0
Zn-65 30
<LLD NA
<LLD NA 0
Zr-95 30
<LLD NA
<LLD NA 0
Nb-95 15
<LLD NA
<LLD NA 0
1-131 15
<LLD NA
<LLD NA 0
Cs-134 15
<LLD NA
<LLD NA 0
Cs-137 18
<LLD NA
<LLD NA 0
Ba-140 60
<LLD NA
<LLD NA 0
La-140 15
<LLD NA
<LLD NA 0
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 56
TABLE I 1.1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL
SUMMARY
Palo Verde Nuclear Generating Station Docket Nos. STN 50-528/529/530 Maricopa County, Arizona Calendar Year 2004 Medium or Lower Limit of All Indicator Location with Highest Annual Mean Control Pathway Type and Total Detection Locations Locations Number of Sampled Number of (LLD)
Name Mean (fl Nonroutine (Unit of Analyses (from Table Mean (f)'
Distance and Range Mean (ft Reported Measurement)
Performed 6.1)
Range Direction Rangc Measurements Gamma Spec. - 17 1-131 1.0
<LLD NA
<LLD
<LLD 0
Milk Cs-134 15
<LLD NA
<LLD
<LLD 0
(pCiAiter)
Cs-137 18
<LLD NA
<LLD
<LLD 0
Ba-140 60
<LLD NA
<LLD
<LLD 0
La-140 15
<LLD NA
<LLD
<LLD 0
Gamma Spec. -36 Mn-54 15
<LLD NA
<LLD NA 0
Fe-59 30
<LLD NA
<LLD NA 0
Co-58 15
<LLD NA
<LLD NA 0
Co-60 15
<LLD NA
<LLD NA 0
Zn-65 30
<LLD NA
<LLD NA 0
Zr-95 30
<LLD NA
<LLD NA 0
Nb-95 15
<LLD NA
<LLD NA 0
Surface Water 1-131 15 15 (3/36)
Site #59 21(1/12)
NA 0
(pCi/liter) 9 - 21 Onsite 180° 21 -21 Cs-134 15
<LLD NA
<LLD NA 0
Cs-137 18
<LLD NA
<LLD NA 0
Ba-140 60
<LLD NA
<LLD NA 0
La-140 15
<LLD NA
<LLD NA 0
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 57
TABLE 11.1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL
SUMMARY
Palo Verde Nuclear Generating Station Maricopa County, Arizona Docket Nos. STN 50-528/529/530 Calendar Year 2004 Medium or Lower Limit of All Indicator Location with Highest Annual Mean Control Pathway Type and Total Detection Locations Locations Number of Sampled Number of (LLD)
Name Mean (fW Nonroutine (Unit of Analyses (from Table Mean (f)8 Distance and Range Mean (a)t Reported Measurement)
Performed 6.1)
Range Direction Range Measurements Surface Water 11 12 3000 1239 (8/12)
Site #63 1491 (4/4)
NA 0
(pCi/liter) 864-1826 Onsite 1800 1284-1826
-continued-(a) Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses. (f)
NOTE: Miscellaneous samples that are not listed on Tables 2.1 and 9.1 (not ODCM required) are not included on this table.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 58
- 12.
References
- 1. Pre-Operational Radiological Monitoring Program, Summary Report 1979-1985.
- 2. 1985-2003 Annual Radiological Environmental Operating Reports, Palo Verde Nuclear Generating Station.
- 3. Palo Verde Nuclear Generating Station Technical Specifications and the Technical Reference Manual (TRM).
- 4. Offsite Dose Calculation Manual, PVNGS Units 1, 2, and 3.
- 5. Regulatory Guide 4.8, Environmental Technical Specifications for Nuclear Power Plants.
- 6. NRC Radiological Assessment Branch Technical Position on Environmental Monitoring, Revision 1, November 1979.
PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT - 2004 59