ML20117E086
| ML20117E086 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 12/31/1979 |
| From: | Brownrigg D, Lorenz R PACIFIC GAS & ELECTRIC CO. |
| To: | |
| References | |
| 411-80.25, NUDOCS 8505100317 | |
| Download: ML20117E086 (65) | |
Text
{{#Wiki_filter:_ _ _ _ _ I
,~
P Ge6 Pacific Gas and Electric Company - Sb - 2?Sl923 B 1979 ANNUAL ENVIRONMENTAL
/
RADIOLOGICAL REPORT DIABLO CANYON POWER PLANT DEPARTMENT OF ENGINEERING RESEARCH OCK 050 275 R PDR
y .. . . . _ . . . . . . . . . . . . , , , . . . . . _ . . - Report Issued: APR 2 8 Igg Report 411-80.25 t- PACIFIC GAS AND ELECTRIC COMPANY DEPARTMENT OF ENGINEERING RESEARCH 1979 ANNUAL ENVIRONMENTAL RADIOLOGICAL REPORT DIABLO CANYON POWER PLANT Prepared By: D. L. Brownrigg R. W. Lorenz
- Report 411-80.25 TABLE OF CONTENTS Page 1
SUMMARY
1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SAMPLE COLLECTION AND ANALYSES . . . . . . . . . . . . . . . . . . . . 2 DISCUSSION OF RESULTS ........................ EPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARISON STUDIES 6 PROGRAM ............................... 7 LAND USE CENSUS i. . . . . . . . . . . . . . . . . . . . . . . . . . .
.............. 7 METHODS OF SAMPLE COLLECTION AND ANALYSIS 22 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 APPENDICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. Environmental Radiological Monitoring Program Summaries
- 8. Analytical Results of Individual Samples
Report 411-80.25 " LIST OF TABLES Page Table 10 1 Marine Sampling Program . . . . . . . . . . . . . . . . . . . . . 11 2 Direct Radiation, Airborne, and Terrestrial Sampling Program .. 12 3 Distances and Directions to Environmental Monitoring Stations . .
.......... 13 4 Maximum Values for Lower Limits of Detection A-1 A-1 ERM Program Summary - Seawater .................
A-2 A-lb ERM Program Summary - Surf ace Water . . . . . . . . . . . . . . .
................. A-3 A-2 ERM Program' Summary - Airborne
............. A-4 A-3 ERM Program Summary - Fish and Seafood
................... A-5 A-4 ERM Program Summary - Milk A-6 A-5 ERM Program Summary - Food Products . . . . . . . . . . . . . . .
A-7 A-6 ERM Program Summary - Sediment .................
............. A-8 A-7 ERM Program Summary - Direct Radiation A-8 EPA Environmental Radioactivity Laboratory Intercomparison A-9 Studies Program Results . . . . . . . . . . . . . . . . . . . . .
B-1 B-1 Wat er S ampl e Dat a . . . . . . . . . . . . . . . . . . . . . . . . B-2 B-2 Airborne Data . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 Fish and Seafood Data . . . . . . . . . . . . . . . . . . . . . . B-18 B-4 Milk Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-21
~
B-5 Food Product Data . . . . . . . . . . . . . . . . . . . . . . . . B-22 B-6 Sediment Data . . . . . . . . . . . . . . . . . . . . . . . . . . B-23 B-7 Direct Radiation Data . . . . . . . . . . . . . . . . . . . . . . B-24 B-8 Indicator Marine Sample Data . . . . . . . . . . . . . . . . . . B-25 11 h .
i
- Report 411-80.25
- LIST OF FIGURES f Page Figure .
15 1 Dihblo Canyon Off-Site Station Locations ............ 16 2 Diablo Canyon Site Station Locations ..............
........ 17 3 Specific Locations of Stations 9, 10, 18, and 26 18 4 Specific Locations of Stations 11, 12, 25, and 29 . . . . . . . .
.... 19 5 Specific Locations of Stations 7, 13, 14, 16, 19, and 27 20 6 Specific Locations of Stations 15, 17, 23, and 30 . . . . . . . .
21 7 Land Use Census . . . . . . . . . . . . . . . . . . . . . . . . . iii
I Report 411-80.25
SUMMARY
The environmental radiological monitoring program was continued with minor changes in 1979. The measurements taken during this year remained in the range of other preoperational measurements. Results of the Department of Engineering Research's participation in the EPA cross-check program and a limited land use survey of the vicinity of the plant site are also included in this report. INTRODUCTION This report contains results of the preoperational environmental radiological montoring program (ERMP) for the Diablo Canyon Power Plant (DCPP) site compiled for the period January 1, 1979 through December 31, 1979. The monitoring program was conducted in accordance with the Diablo Canyon Environmental Radiological Monitoring Program, as revised May 1, 1979.(I) Results of previous measurements from Diablo Canyon environs are contained in quarterly reports numbered 1-35.(2) SAMPLE COLLECTION AND ANALYSES During this period, 47 marine samples were collected and analyzed as described in the marine sampling program, Table 1. This program prescribes a quarterly sampling schedule which is utilized to insure that required samples will be obtained at least semiannually, if available. However, black abalone, red abalone, Pismo clams, and consnercial salmon were collected only when in season and population density permitted.
1 2 Report 411-80.25 Direct radiation was measured at monthly intervals at 19 stations and at quarterly intervals at two additional locations. The direct radiation exposures were measured using thermoluminescent dosimeters (TLDs). The sampling locations are described by Table 3 and shown in Figures 1-6. Air was continuously sampled at four locations, Stations 1, 9, 12, and 27, as shown in Figures 1-6. These samples, 198 air particulate filters and 198 iodine cartridges, were collected generally at weekly intervals. One sample was not collected from Station 27 due to a mechanical f ailure in the sampling equipment. Forty-four terrestrial samples were collected and analyzed as described in Table 2. These included milk samples from two dairies which were collected at monthly intervals, surface water samples from two Diablo Creek locations which were collected quarterly, and vegetable samples from three farms which were collected quarterly. In addition, the results of our participation in the EPA Environmental Radiological Laboratory Intercomparison Program and a summary of a land use census for the plant environs are included in this report. DISCUSSION OF RESULTS The results obtained from the monitoring program are contained in Appendices A and B. Each appendix is ordered in the following manner: Water Samples Table 1; Airborne Radioactivity, Table 2; Fish and Seafood Samples, Table 3; Milk Samples, Table 4; Terrestrial Food Products. Table 5; Sediment Samples Table 6, and Direct Radiation Measurements, Table 7. The tables in Appendix A presene summaries of the results in
-accordance with current Nuclear Regulatory Commission (NRC) guidance.(3)
3 Report 411-80.25 The tables in Appendix B contain the analytical results of the individual samples which were used to compile the summaries in Appendix A. In addition to the above, Table A-8 details the results of our participation in the EPA Laboratory Intercomparison Program. Table B-8 contains the results from the analyses of indicator marine samples which were collected during the year which are not directly compatible with hRC reporting guidelines. A short narrative summary will follow describing the results contained in the tables of Appendix A. The maximum values for the Lower Limits of Detection (LLD) that are discussed below are shown in Table 4. Water Samples One sample of seawater from Diablo Cove and two samples of surface water from Diablo Creek were collected quarterly. Analytical techniques used were capable of achieving the required LLDs with the exception of that for iodine-131. No iodine-131 activity was detected in any water sample and none could be expected due to the lack of a source and its short half-life. However, we have adjusted our sampling and analytical techniques to achieve the required sensitivity. Airborne Radioactivity Air particulate filters and iodine cartridges were collected at weekly intervals from four stations. Gross beta activity was measured on all filters. These measurements were consistent except for Samples 79599 and 79455 which were counted following an insufficient decay time. Therefore, the measured gross beta activity on these filters was elevated due to radon daughter activity. No iodine-131 was detected on any of the a .
4 Report 411-80.25 charcoal cartridges. The LLDs were met for all these analyses. The particulate filters were composited quarterly by location and analyzed for gamma emitters. All of these analyses met required sensitivities. Fish and Seafood Samples Fish, abalone, and clam samples were taken when available each quarter. Cesium-137 activity was measured in commerical fish samples throughout the year, but the activity was well below reporting levels. This activity results from previous atmospheric nuclear weapons tests. Milk Samples Raw milk samples were collected each month from two dairies. The required analytical sensitivity was met on noted isotopes in all samples except for barium-140 in Sample 79013. Cesium-137 activity was measured in Samples 79056 and 79280, but the measured activity was well below the reporting level for this isotope. This activity results from previous atmospheric nuclear weapons tests. Food Products Green leafy parts of vegetables grown in the Diablo Canyon area were collected from two farms at quarterly intervals. In addition, snow peas are collected at quarterly intervals from a farm along the plant access road. The required analytical sensitivities were met for noted isotopes on all samples except for iodine-131 on samples collected early in the year. These exceptions were caused by long delays between sampling and analysis. We have adjusted our procedures to lower this time interval and meet the sensitivity requirements. Small concentrations of naturally
p_ .- 5 Report 411-80.25 occurring or fallout radioisotopes were measured in these samples, but all were well below the reporting levels. Sediments Sediment samples were collected from Diablo Cove at quarterly intervals. Although cesium-134 and -137 activities were measured in some of these samples, the levels measured were substantially below reporting levels. This activity results from previous atmospheric nuclear weapons tests. Dosimetry Victoreen Model TL-15 glass encapsulated CaF 2:Mn thermoluminescent dosimeters are used in direct radiation monitoring in the Diablo Canyon environs. There are 21 dosimeter locations. Nineteen are changed monthly; two are exchanged quarterly. Station 28 is changed quarterly since it is difficult to change in adverse weather, and Station 29 is changed quarterly to allow comparison with state TLD data at this location. The data for 1979 are in agreement with data for the previous eight years. The data are given in Table B-7. In addition to the routine dosimetry program, we also participated in the Fourth International Intercomparison of Environmental Dosimeters. This intercomparison was sponsored by the University of Texas, School of Public Health, and the Department of Energy, Environmental Measurements Laboratory. In the intercomparison, there were three groups of exposed dosimeters and one control group. One of the exposed groups was placed in the environment for three months of exposure to natural background. The other two groups of exposed dosimeters were given a laboratory exposure; one approximately equal to a typical three-month field exposure and one in I l
6 Report 411-80.25 the range of 25-300 milliroentgens (mR). We sent two sets of dosimeters for each exposure group. One set was sealed in polyethylene plastic for protection. The other set was put into Schedule 80 PVC pipe to simulate the dosimeter holders used in the field at Diablo Canyon. The results of our participation in the Intercomparison are as follows: Exposure Exposure PGandE Result Actual Value Type Condition (mR) (mR) Field Outside PVC 14.0+1.9 14.1+0.7 Field Inside PVC 14.412.1 Lab " Low" Outside PVC 11.2+3.4 12.211.2 Lab " Low" Inside PVC 11.913.6 Lab "High" Outside PVC 44.3+5.6 45.8+4.6 Lab "High Inside PVC 44.315.6 EPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARISON STUDIES PROGRAM The DER radioanalytical laboratory participated in the Environmental Protection Agency's (EPA) Environmental Radioactivity Laboratory Intercomparison Studies (Cross-check) Program (4) during 1979. We participated in the following determinations (sample mediums-radionuclide combination): diet samples containing gamma emitters; milk samples containing gamma emitters; water samples containing tritium, iodine-131, gamma emitters, and alpha and beta emitters; and air particulate samples containing alpha and beta emitters. Our participation was such that we received at least three samples of each of these determinations. The results of our participation are shown on Table A-8. As'noted on the table, we have not received the known values from the EPA for several of the determinations conducted during 1979. As these known values will be available from the EPA, we do not plan to submit a supplementary report to include these values. w
7p 7 Report 411-80.25 LAND USE CENSUS Since Diablo Canyon Unit 1 did not receive an operating ifcense and, therefore, did not achieve its initial criticality, a detailed land use census was not completed during 1979. However, a limited land use survey was conducted. This survey was an aerial survey by helicopter of all land area within five miles of the plant site. This aerial survey was conducted on October 24, 1979. The results of this survey are shown on Figure 7. No milk animals were found within the first five miles f, rom the plant in any sector. Eight structures were located which could serve as permanent residences. Of these residences, two had garden plots which potentially could have been used to grow leafy vegetables. But at the time of the survey, no crops were being grown. Also, identified in this survey was a section of the coastal plain along the site access road on which barley and snow peas are grown. Since no milk animals were detected nor any garden area with greater potential thyroid dose than the presently sampled farm area, we did not follow the aerial survey with a detailed ground survey. METHODS OF SAMPLE COLLECTION AND ANALYSIS Most samples are collected by DER personnel. A quarterly collection schedule is followed for marine, surface water, grain, and vegetable samples to insure that a sample is taken semiannually. California Polytechnic College Foundation personnel under the direction of Dr. F. Clogston collect terrestrial and occasionally some marine samples. PGandE Coast Valley Division personnel service the air particulate station at Station 9. The San Luis Obispo (SLO) County Health Department personnel service Station 29 dosimetry.
me 8 Report 411-80.25 Marine and terrestrial samples are processed for analysis at DER. Except for seawater, samples are freeze-dried or evaporated prior to determining gross beta activity. Beta analysis is performed on low background, thin window, gas-flow proportional counters; the limit of detectability is typically 0.5 pC1/p of a standard containing K-40. Activities are reported per gram dry sample or per gram original sample, as appropriate. The tritium (H-3) activity in groundwater and seawater is determined by analyzing a distilled aliquot of the sample with a liquid scintillation spectrometer. The limit of detection for this analysis is typically 0.2 pCi/ml of water. Radiofodine analyses are performed on milk samples within eight days of collection. Following addition of stable iodine to the raw milk to permit determination of chemical recovery, iodine is separated from the milk by an anion ion exchange resin. Iodine is stripped from the resin and af ter purification is precipitated as cuprous iodide for measurement by beta-gamma coincidence counting. The detection limit attained by this method is typically 0.2 pCi/ liter for I-131. A gamma isotopic analysis, using a Ge(Li) detector and multichannel pulse height analyzer, is performed on all marine and terrestrial samples, on iodine cartridges, and on quarterly composite of air filters. The limit of detectability attained in the gamma scan is typically less than 1 pCi/p of a freeze-dried sample containing a single radionuclide.
9 Report 411-80.25 Air samplers are located at Stations 1, 9,12, and 27 (Figures 1 through4). The constant flow samplers have a flow rate in the range of 40 1pm. An HV-70 filter and a Scott TEDA impregnated charcoal cartridge for the collection of radiciodines are used. The filters and cartridges are concurrently collected on a weekly basis and mailed to DER. The filters are counted to determine gross beta activity at least 72 hours after collection to allow for naturally occurring short-lived radionuclides to decay, and the filters are combined quarterly for an analysis of gamma emitters. The cartridges are gamma scanned within one half-life (eight days) to determine I-131 concentr.ation. The limit of detection of this analysis is typically 0.02 pCi per cubic meter of air sampled. Gamma dosimetry is performed at Stations 1 to 18, 27, 28, and 29, shown in Figures 1 through 4. At Stations 1 to 18 and 27, a packet containing three Victoreen (Model TL-15) TLDs is exposed on a monthly basis and changed by PGandE personnel. At Stations 28 and 29 a packet of three TLDs are exposed quarterly and changed by PGandE personnel and the SLO County Health Department personnel, respectively. All TLDs after their exposure are then mailed to DER for readout. The + term in the tables of Appendix B is the two-sigma error; i.e., the 95 percent confidence level.
( w_ 10 Report 411-80.25 TABLE 1 Marine Sampling Program Sampling Type of Material Collection Sample Item Location Analysis Analyzed Frequency Diablo Cove Gama isotopic, Aliquot Quarterly Seawater tritium Red algae, foliose Diablo Cove Gama isotopic Complete Quarterly (Iridaeasp.) sample Bull kelp Diablo Cove Gama isotopic Frond and Quarterly (Nereocystis stipe i leutkeana) Goose barnacles Diablo Cove Gama isotopic Meat and Quarterly (Pollicipes shell polymerus) Mussels Diablo Cove Gama isotopic Complete Quarterly (Mytilus sample, californianus) less shell Black abalone Diablo Cove Gamma isotopic Edible muscle Quarterly (Haliotis and viscera cracherodii) l Striped sea perch Diablo Cove Gama isotopic Edible muscle Quarterly (Embiotoca lateralis) Pismo clams Pismo Beach Gamma isotopic Complete Quarterly (Tivelastultorum) sample, j less shell Red abalone Diablo Cove Gamma isotopic Edible muscle Quarterly (Haliotis and viscera if rufescens) available Blue Rockfish Diablo Cove Gama isotopic Edible muscle Quarterly (Sebastes mystinus) Commercial Gama isotopic Edible muscle Ouarterlyb/ landing in if collected Morro Baya/ locally 1 Salmon Commercial Gama isotopic Edible muscle Quarterlybj i landing in if collected l locally l Morro Baya/ l a/ Commercial samples. bfSampled when in season. l
'B W 11 Report 411-80.25 TABLE 2 Direct Radiation, Airborne, and Terrestrial Sampling Program Collection Sample Item Sampling Location Type of Analysis Frequency N 21 stations II Gamma dose MonthlyY Direct Radiation Airborne ParticulatesNi 4 stationsb/ Gross beta Gamma isotopic Vee':,1y Quarterly composite Iodine 4 stations 5I Gamma for I-131 Weekly Surface water 2 stationsO Gross beta , gamma isotopicEf, Quarterly tritium Farm in San Luis Obispo GammaisotopicY Quarterly Grains and vegetables area; farm in Guadalupe area; farm along plant access road5I Milk Farm in San Luis Obispo Gamma isotopicE Monthly area; farm in Guadalupe; RadiciodineY Monthly area 5I
'yThermoluminescent dosimeters (TLD), three at each station.
b/See Figures 1 and 2 for locations. {/ExceptStations28and29whicharequarterly. d/ Filters changed weekly or as required by dust loading; analyzed at least 72 hours after filter change. e/Diablo Creek above 500 kv switchyard; Diablo Creek at Diablo Cove. T/ Analyses performed on evaporate. 3/ Analyses performed on complete sample.
7 p-12 Report 411-80.25 TABLE 3 Distances and Directions to Environmental Monitoring Stations Radial Radial Direction Distance (True Heading) from Plant Station (Degrees) Nfter Station Name (Miles) Site, Tower E 175 0.2 1 Site, North of Diablo Cove 290 0.3 2 Site, Construction Yard 330 0.1 3 4 Site, Switchyard 52 0.5 Site, Tower E 94 0.6 5 6 Site, N.E. Batch Plant 125 0.6 Site, Tower A 128 0.5 7 8 Site, Tower D 70 0.5 Morro Bay Power Plant 358 11.2 9 10 Sunnyside School 10 6.9 Los Osos School 36 7.6 11 12 SLO Zone 1 Substation 68 11.2 Crowbar Canyon 327 1.6 13 14 Avila Beach 110 7.6 Oceano Substation 118 17.3 15 16 Pecho Creek Ruins and Mallo Farm 118 4.1 Shell Beach 110 10.8 17 18 Point Buchon 325 3.6 19 Diablo Cove 270 0.2 20 Diablo Creek above 500 kv switchyard at filter plant 65 0.8 21 Diablo Creek below 500 kv switchyard 285 0.2 Pismo Beach 115 12.6 22 23 Arroyo Grande 115 16.8 25 Cal Poly Farm 60 12.6 26 Morro Bay 0 10.9 27 Avila Gate 120 6.6 28 Site, Diablo Peak 103 1.1 29 SLO County Health Department 70 12.7 30 Woodland Dairy 122 17.9 I
mr 13 Report 411-80.25 TABLE 4 Maximum Values for the Lower Limits of Detection (LLD)a Airborne Particulate Fish Pr ucts Sediment or Ga (pCi/kg, Water Milk (pCi/kg, (pCi/kg, Analysis (pCi/1) (pCi/m3 ) wet) (pCi/l) wet) dry) b Gross beta 4 1x10-2 3 H 2000 (1000)b 54 Mn 15 i 130 59 Fe 30 260 58,60 Co 15 130 65 Zn 30 260 95 Zr-Nb 15 131 7 jb 7x10-2 1 60c 134,137 Cs 15(10)b,18 1x10-2 130 15 80 150 140 Ba-La 15 15 Table Notation a- The LLD is the smallest concentration of radioactive material in a sample that will be detected with 95 percent probability with 5 percent probability of falsely concluding that a blank observation represents a "real" signal. For a particular measurement system (which may include radiochemical separation): s 4.66 b LLD = E x V x 2.22 x Y x exp (- ht) where LLD is the lower limit of detection as defined above (as pCi per unit mass or volume) sb is the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (as counts per minute) w
14 Report 411-80.25 TABLE 4 - contd. E is the counting efficiency (as counts per transformation) V is the sample size (in units of mass or volume) 2.22 is the number of transformation per minute per picocurie Y is the fractional radiochemical yield (when applicable) A is the radioactive decay constant for the particular radionuclide t is the elapsed time between sample collection (or end of the sample collection period) and time of counting The value of sb used in the calculation of the LLD for a detection system shall be based on the actual observed variance of the background counting rate or of the counting rate of the blank samples (as appropriate) rather than on an unverified theoretically predicted variance. In calculating the LLD for a radionuclide determined by gamma-ray spectrometry, the background shall include the typical contributions of other radionuclides riormally present in the samples (e.g., potassium-40 in milk samples). Analyses shall be performed in such a manner that the stated LLDs will be achieved under routine conditions. Occasionally background fluctuations, unavoidably small sample sizes, the presence of interferring nuclides, or other uncontrollable circumstances may render these LLDs unachievable. In such cases, the contributing factors will be identified and described elsewhere in the report. b- LLD for drinking water. c- LLD for leafy vegr+. ables. aw
15 l I
- t . '.'*'"~ snaus s M'ATASC.A,D,.ERO U. \
a f
-. .,n. r ..
. . . . Aj :' * .
a= ;w - - a
, ss' g ", ?
a ce , 100 e ;; , b t7
- 3.
- seneo staca - .
cama f' ,.' ,e . MARGARITA ' - ' '\
=;,c . c',, ,,.
@-@ $a ~% => t. 1
~~ .IEffl." "" ' ,h,' ' !
=: (<. 10f' e I k,, ..,..',.' . %
4e .--/
.,>hr ._..
<ve.-
,/ . E g, ., me Jg,,,,, % . 1 w
@h was.c, 3_ \._%
, 3F* ., e s-3 ng l8.; eci
,/p g e
- s. .
- p:'
AN LUIS
- a. m
+ --
%~
.- ~
g-gUg 0, '=_ ,.$._ a > .. "0 BI S PO . b g\.^%- r Y
' 3
*~
- f g
O,3 -
"' a , 2...'n..' .
~
t I 4 w 3 -
, . ..s c
O 3 24' eo=4 l7; '5 4 .'s
. , 8*ta ro ,j .J $_
, t' s ,;!l, a
,,,t g*w 10' .
?l PtSMO
, 4, ,,. y \, 25 k ,[ ,,,
*4 BEACH '
3
)
esKNin ciTV .
.** t /\y
-I"~ ) 'M;, -ARROYO ^~*
GRANDE s(q
- Ot5 0 h '
s I- t
- os ro s'(.*
'3 's 6
~ = t1 is7PoSo 5La
- s 4 %s
= ,.g
- st -
Mee . '
" f,u krtchr0Res
#,, _q S ' '
,0.L suAoAtuet;, t SANTA
- 6 '_QL 't MA,RI.A'g!, ' %. # "'
i [Ft...AA[s*,,,, - i g-n
. . .AI. I rs..b s O 5 10 15 Miles LEGEND UNITS I AND 2
@ 00SIMETRY STATION DIABLO CANYON SITE h AIR PARTICULATE STATION Figure i BIOLOGICAL SAMPLING STATION Of f Site Stations l
l i li
9 4 s PLATEI
"$"$~E[ ['hhbh ,f Ag
- 7 gg#\ \
D' / +. 20 .
,/
/
, r; V'
-: A x
( .
\
J \ .' :::n..
,/- . , a-ors or roa N '- _
,/ -@o g-
/ . ....
..a.
r( s r i -b f
\
\.
ll YfQW"
,,+ ..
/ /
f ,
"Q \
\
f/? .. k > \ 9
%4,,1 -
.., wCR PLANT coassinutta.
osasto ,,e e 3ca LEGENO aA (~j 180TaMC 1 1 - -
@ DOSIMETRY STATION s e t a a wa,E RS FIGURE 2.
l AIR PARTICULATE STATION
- p DIABLO CANYON
^ ON SITE STATIONS BIOLOGICAL SAMPLING STATION # # F I e o C E A N D ' PAcertC ,G_A S CL EC TRIC,CO.
u ... . u , e
~
. ,'ff ' ppq
.A.
g . g*-
'*y I. 4% s, p w
-)
c' r s: ,' s
' , Qg, c% ; .
~ '
'e \
&Mi-4Q T ]h]N g gh.37 kLlw>-1y -
r l; _,ji _. .m: - u u-.Lidy_ d'*t39 8
+
ff fr+"h l y h,a4 ' ! I f h.j , 4 + 3 7~ , i d J x. i W ,
; : 4 \
L -. Jp-wn ~;
., " .vi,w fk I . : /
i ifk N p.:xn.. j .3. .t 5 ~ am 9i.f.%, gd}
! 7 i ,
M
- 3 ;.Mj!
5 [Ti Qo. ;.y . e-
,,q i Tp, __.
- - rD '.
t {
- 3(., % jyt...~P~}J~
,_ \? (M) ~
- C . % y .': x - j
l Lu.A_; s** ..%(ff
?.
w Los Osos
- l i UNITS I AND 2 0 TCAlle y n%
.;- -r . .
~
DIABLO CANYON SITE , .ge j_ .
.. .N4, FIGURE 3 e ""b b' a' .
h DOSIMETRY STATION __ L. l AIR PARTICULATE STATION ~
*] ,
b BIOLOGICAL SAMPLING STATION l l
j . J j. .-
..uR r" a. -
gQ;N[k 1 .l ['
~~
UNITS I AND 2
\
I #N D' , , DIABLO CANYON SITE , p ~-
- s 3 , e ,
/[
i h DOSIMET Y STATION kg PM % AIR PARTICULATE STATION a(I 60 ,* ( k/ \. ,\ h BIOLOGICAL SAMPLING STATION
\
11.~,6. v \ -. %'f f"X( e -I -
/ s y
~
e . , j N]'. j . ,m ~.;. D. ' s /
*:a ' ~~ l Hp-wijes7e _;,
g fl w I " g l ~/ 3 , _.e' I~ 1 Y"_ _
+
~ Q ' ' j '- ah.o A
l
*' k* e v'.. 21
. g k .l j) .
(-..
*~ . . p
- t ,
1 08-4
, . . ~
.[ w*
l s2 ,2 _ t% ' r;=e --Y \ ,' ,
?-'l l
-, S * .
** &. , -. i j
*** Y 1
i , . v. , - p' -t x y y__ _ ' w, ' __ _ L+&
! 'NT '
- p '
/ 'l -
l' (_i Mused [ '
- 87- g epit \
j-,~,' ' 3 y '- -
\
fthek[fL +-
~
N ~}
~ '
l s 'k
- I h
* / ,
s ...). * - I - s \ g l
'^ , 1
* , Hs ,,^\ 246 / \
l ' l [
,( ..
l f,>ny[,y y 2%. . p;,.o
+ hg ^
! f flm. 4
- li '*e 7 3.
i 1l
! as , [l ! ! i 4..yg .Sh"t,'
2._ . 2, I er Ih Ws' W
\T Sensheimor {g
{ ' '
- Red.o Tower i
.# 'g, Ie 48chg j
I hjfE=u.4(Afgm.z.gw , n .,_ 4 wl L'rhai](; YhN 'kUI A ..
;j- .y g .
I f- - r j % . p'$ @ '
- n. w -- an . ,
-'l ..s
' ^ '
.- s - 1
, ., - - Y j
- d O
' " N :q 'w
~~
-v;; ,_-
~~
l p es > J ~ l
- ~
y .
- . 1 l
i
)
i e-A I
,, , L t. ,. j ,
N: _ ': q %. x hf-o' 1 : l 'w C . ! i ' o . . 4
-o 5
.'\h ,
g s c BCD4/ .
,,_ _.ca g
..(.
W n-- -
,,. %. ,9 i-{- ( ; L
' 2.* , -
f UNITS I AND 2
.% "p' iip DIABLO CANYON SITE s l
nouRE s - e J'- ; i h DOSIMETRY STATION ,
#* A " - - !
m l . h AIR PARTICULATE STATION A Si0tooiCAt Sauetino STATi0s
w Y :l- , l
. V ) ,
- % g
/. "* . .. .
&.~' -
". . UNITS I AND 2
" s s DIABLO CANYON SITE
\q FIGURE 6
*' h DOSIMETRY STATION
, e . .
O. . >,. c ... -- O AIR PARTICULATE STATION me O O O \
~
_3. 1 ,. b BIOLOGICAL SAMPLING STATION
' 4
.yh... -
ra~ w
- o. r. m.
t u-L. y). #4+o ~ d
'f'6.'l
~ -
A = e .n .h . y /,- * %y %. # .'
, :: .N y 4 W' !:d'1 s' .....- ..
g' ,-- - m,+g t. s ~
~ :
I - 1 4 {., g. .g-' m .y =:- m..
----l.-
~...- . ,,, I .
, ,'5 ~ 'N c;-) -
f , , en ?; x
,w,l ,
L2 -js . _r_' ,
.W' l
~-y l .s; \,
(
"'^
~_
R j $... ... ..
-Q4,5"a ,
s . f- .
.. . . . ~... ... ; '
* >G 4
o ) .js
- m -
y ,m' , ,/
.,.= .
. .s v
+
l l':
~
g x - m u,- c.w' .
b -
,(f: f^'-j-
- Q. [
~
kI ,
, .. i . N x
\\. d ~.:. *::v.n s anoa. aca .t u
}
_.i'N 1 . . . . 1
----.m. . . - , , , , . _ _ _ . . - - _ _ - _ - _ _ _ - _ _ _ _ _ _ _ _ -_ ____ ,-------__-
e 21 Q TO PASO ROBLES ATASCADERO g.e SANTA O MARGAmlTA MC ROSAY
+
I
/
i i i
%s
"%e SAN LUl3 08tSPO I A ent
# % oo S
A g
*+ [y y,
.9 -
Ag 8 PACI F IC k OCEAN ; e i i e s- uit.e " su ,
"s"Ju (4 %,
6RcVER city Op l 1
%g*
UNITS i AND 2. t e i a . . DIABLO CANYON SITE FIGURE 7. LAND USE. CENSUS O GARDEMS OR FARM A RESIDEMCES l
. - . . . - . --- - - - . . - - - - - - ~ - - . - - - .. - -- -
22 Report 411-80.25 REFERENCES
- 1. Letter to Joseph Ward, Department of Health Services from R. F. Cayot, concerning modifications of environmental radiological program for the Diablo Canyon site, dated June 14, 1979,
- 2. Environmental Radiation Study in the Vicinity of Diablo Canyon, California, Reports 1-35.
- 3. NRC Branch Technical Position on Environmental Radiation Monitoring, Revision 1 (November 1979).
- 4. EPA-600/4-78-032 (June 1978), Environmental Radioactivity Laboratory .
Intercomparison Studies Program 1978-1979. s i t l i I
Report 411-80.25 APPENDIX A Environmental Radiological Monitoring Program Summaries au
? TABLE A-1 Environmental Radiological Monitoring Program Summary Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-32,1 Lc ation of Facility San Luis Obispo, California Reporting Period 1/1/79-12/31/79 (County, State) Medium or Type and Lower Limit All Indicator Locationwith'Eighest P;thway Sampled Total Number Control of Locations Annual Mean Locations Number of (Unit of of Analyses Detection (a) Mean(l)(b) Name, Distance Mean(1)(b) Reportable Measurement) Performed Range (b) Mean(1)(b) (LLD) and Direction Range (b) Range (b) Occurrences Seawater Tritium (3) 360 None detected Sta.19, 0.2 mi, (pCi/ liter) None detected - 0 270' Gama Sta.19, 0.2 mi, - 0 Isotopic (4) 270* 54Mn 4.2 None detected None detected y 59Fe 14 None detected None detected 58Co 5.1 None detected None detected 60Co 3.1 None detected None detected 65Zn 7.7 None detected None detected 95Zr 9.8 None detected None detected 95Nb 5.6 None detected None detected 131I 130(c) None detected None detected 134Cs 3.7 None detected None detected 137Cs 3.9 None detected None detected 140Ba 87(c) None detectd None detected 140La 42(c) None detected None detected (a) Calculated Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the sumarized samples. (b)Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (1). (c)LLD is higher than Table 4 values due to length of time between sampling and counting.
1 TABLE A-lb Environmental Radiological Monitoring Program Summary Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-323 Location of Facility San Luis Obispo, California Reporting Period (County, State) 1/1/79-12/31/79 Medita or Type and Lower Limit All Indicator Location with Highest Pcthway Sampled Total Number of Control Locations Annual Mean Locations Number of (Unit of of Analyses Detection (a) Mean(1)(b) Name, Distance Measurement) Performed Mean(1)(b) Mean(1)(b) Reportable (LLD) Range (b) and Direction Range (b) Range (b) Occurrences Surface Water Gross beta 4 3.16(8/8) Sta.21, 0.2 mi, (pCi/ liter) (8) 3.30(4/4) - 0 2.25-3.91 285* 2.89-3.91 Tritium (6) 200 None detected - None detected - 0 Gamma - Isotopic (8) - 0 54Mn 4.4 None detected None detected 59Fe 13 None detected None detected 58Co 6.2 None detected None detected 60Co 4.3 None detected None detected 65Zn 9.4 None detected None detected 95Zr 11 None detected None detected 95Nb 6.3 None detected None detected 131I 142(c) None detected None detected 134Cs 4.6 None detected None detected 137Cs 4.5 None detected None detected 140Ba 86(c) None detected None detected 140La 39(c) None detected None detected (a)stinmarized Calculatedsamples. Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the (b)Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (1). (c)LLD is higher than Table 4 values due to lanath af H=a ha " a- - - " - - - ' - - ' ' ' '
i TABLE A-2 Environmental Radiological Monitoring Program Summary Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-323 Location of Facility San Luis Obispo, California Reporting Period 1/1/79-12/31/79 i (County, State) i Medium or Type and Lower Limit All Indicator location with Highest Control ; Pathway Sampled Total Number of Locations Annual Mean Locations Number of } (Unit of of Analyses Detection (a) Mean(l)(b) Name, Distance Mean(1)(b) Mean(l)(b) Reportable Measurement) Performed (LLD) Range (b) and Direction Range (b) Range (b) Occurrences Airborne 131I(196) 0.07 None detected - - Sta.9 0 (pCi/m3) None detected Gross Beta 0.01 0.031(148/148) Sta.12, 11.2 mi, 0.034(49/49) 0.034(50/50) 0 (198) 0.010-0.125 68* 0.011-0.125 0.010-0.119 Cs-134 0.01 None detected - - None detected 0 Cs-137 0.01 None detected - - None detected 0 { (U) Calculated Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the strmiarized samples. (b)Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (1).
TABLE A-3 Environmental Radiological Monitoring Program Summary Name of Facility _ Diablo Canycn Power Plant , Docket No. 50-275 and 50-323 Location of Facility _ San Luis Obispo, California (County, State) Reporting Period _ 1/1/79-12/31/79 Meditm or Type and Pathway Sampled Total Number Lower Limit All Indicator of Location with Highest Control (Unit of of Analyses Locations Annual Mean Detection (a) locations _ Measurement) Performed Mean(l)(b) Name Distance Number of (LLD) Range (b) Mean(l)(b) Mean(l)(b) Reportable and Direction Range (b) Range (b) Fish and Garrna Occurrences Seafood Isotopic (28) Sta.19, 0.2 mi, (pCi/kg wet) 270* Sta.26 0 54Mn 47.5 None detected - 59Fe None detected 351(c) None detected - 58Co None detected $ 80.5 None detected - 60Co None detected 36.2 None detected - 65Zn None detected 98.4 None detected - 134Cs None detected 44.1 None detected - 137Cs None detected 46.7 10.7(1/14) 10.7(1/14) 38.3(5/9) 18.0-72.3
~
(a)surunarized Calculated Lower Limit of Detection (LLD). samples. The value reported is the highest LLD calculated for any of the (b)Mean and range based upon detectable measurements only. is indicated in parentheses (1). Fraction of detectable measurements at specified locations (c)LLD is higher than Table 4 values due to length of time between sampling ng. and counti L
l TABLE A-4 Environmental Radiological Monitoring Program Sununary Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-323 Location of Facility San Luis Obispo, California Reporting Period 1/1/79-12/31/79 l (County, State) Medium or Type and Lower Limit All Indicator Locationwithiiighest Pathway Sampled Total Number Control of Locations Annual Mean locations i (Unit of of Analyses Number of Detection (a) Mean(l)(b) Name, Distance Mean(l)(b) Mean(l)(b) Reportable Measurement) Performed (LLD) Range (b) and Direction Range (b) Range (b) Occurrences Milk 131I(24) 0.20 None detected Sta. 30 (pCi/ liter) Sta.25 0 17.9 mi, 122* None detected Gamma - Isotopic (24) 0 134Cs 6.4 None detected None detected 137Cs 7.5 None detected
- 2.05(2/12) 1.8-2.3 140Ba 74(c) None detected None detected 140La 29 None detected None detected (a)sunntarized Calculatedsamples.
Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the (b)Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (1). (c)LLD is higher than Table 4 values due to length of time between sampling and counting. .
l TABLE A-5 Environmental Radiological Monitoring Program Sunnary . Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-323 Location of Facility San Luis Obispo, California Reporting Period (County, State) - 1/1/79-12/31/79 j Medium or Type and Lower Limit All Indicator P3thway Sampled Total Ntaber Location with Highest Control of Locations Annual Mean Locations Number of (Unit of of Analyses Detection (a) Mean(1)(b) Name, Distance Mean(1)(b) Reportable l Measurement) Performed Range (b) Mean(1)(b) (LLD) and Direction Range (b) Range (b) Occurrences Food Products Gamma (pCi/kg wet) Isotopic (12) Sta.25, 12.6 mi, 60* 1311 7811(c) None detected - - None detected 0 134Cs 9.2 None detected - None detected 0 137Cs 7.5 None detected
- 7.1(1/4) 0 (u)stamarized Calculatedsamples.
Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the (b)Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (1). (c)LLD is higher than Table 4 values due to length of time between sampling and counting. '
l TABLE A-6 Environmental Radiological Monitoring Program Summary Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-323 Location of Facility San Luis Obispo, California Reporting Period (County, State) 1/1/79-12/31/79 Medium or Type and Lower Limit All Indicator P;thway Sampled Total Ntsnber Location with Highest Control of locations Annual Mean Locations (Unit of of Analyses Detection (a) Mean(1)(b) Name, Distance Number of Measurement) Performed Range (b) Mean(l)(b) Mean(1)(b) Reportable (LLD) and Direction Range (b) Range (b) Occurrences Sediment Gama (pCi/kg dry) Sta.19, 0.2 mi, 0 Isotopic (4) 270* 134Cs 25 24(3/4) 24(3/4) 21-29 21-29 137Cs 25 7 27.5(2/4) 27.5(3/4) 22-33 22-33 (a)startarized Calculatedsamples. Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the (b)Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (1).
1 TABLE '-7 Environmental Radiological Monitoring Program Sumnary Name of Facility Diablo Canyon Power Plant Docket No. 50-275 and 50-323 Location of Facility San Luis Obispo, California Reporting Period (County, State) 1/1/79-12/31/79 Medium or Type and Lower Limit P.thway Sampled Total Number All Indicator Location with' Highest Control (Unit of of locations Annual Mean of Analyses Detection (a) Mean(l)(b) Name, Distance locations Number of Measurement) Performed (LLD) Range (b) Mean(1)(b) Mean(1)(b) Reportable _and Direction Range (b) Range (b) Occurrences Direct TLD Packets Radiation (mR) 1 76.9(212/212) Sta.4, 0.4 mi, 8.8(12/12) Sta.9 and 11 (236) mR/mo 56.2-107.0 58 0 mR/yr 7.4-11.2 64.0(24/24) mR/mo 60.4-67.6 mR/yr P m (a) summarized Calculated samples. Lower Limit of Detection (LLD). The value reported is the highest LLD calculated for any of the (b)Mean and in is indicated range based upon parentheses (1). detectable measurements only. Fraction of detectable measurements at specifi L
A-9 Report 411-80.25 TABLE A-8 Diablo Canyon Power Plant 1979 Annual Report EPA Environmental Radiological Laboratory Intercomparison Studies Program Results1! EPA DER Known Value Average Value
+ Expected Sample Type Radionuclide Date Precision ( ) -+ Experimental Precision ( )
Diet I-131 3/9/79 90+5 84+15 7/13/79 1875 8T0 11/15/79 12716 114133 i Cs-137 3/9/79 74+5 83+1 7/13/79 3375 2574 11/15/79 2215 2316 . K 3/9/79 2700+135 2530+239 7/13/79 2650T130 23907200 11/15/79 25501127 1340176 Milk I-131 1/26/79 105+5 112+6 4/27/79 96T1.7 92T9 7/27/79 1775 1573 11/2/79 637132 580171 Cs-137 1/26/79 49+5 56+4 4/27/79 154+2.7 132+23 7/27/79 1275 1771 11/2/79 4915 4512 K 1/26/79 1560178 1383184 4/27/79 1560+26 1110+35 7/27/79 1630T83 1227T21 11/2/79 1470173 1630115 1/Onlyradionuclidescontainedinthesamplearereportedonthistable. DER reported values for all radionuclides added to these samples by the EPA and did not report values for any radionuclides not added. 2/ DER values recorded are the avera or minus the experimental sigma 1(ge of the three results submitted plus sigma).
*Known values not yet received from the EPA.
m
i l A-10 Report 411-80.25 t TABLE A contd. Results EPA DER Known Value Average Value Sample Type
+ Expected + Experimental Radionuclide Date Precision ( )
~
Precision ( ) Water H-3 2/9/79 1280+331 1193+106 4/13/79 22707349 2263T86 6/15/79 15407337 1553T142 8/10/79 14807335 1537T42 10/5/79 15607370 1560730 12/14/79 2040}347 2187158 I-131 4/6/79 40+4 17+1 8/3/79 2675 20T1 12/7/79 5315 4410 Cr-51 10/5/79 11316 11414 Co-60 2/2/79 9+5 8.7+1 6/8/79 4775 40.671 10/5/79 615 5.310.5 Cs-134 2/2/79 6+5 5.7+1 6/8/79 71T5 60+4'- 10/5/79 7}5 67310.5 Cs-137 2/2/79 12+5 13+1 10/5/79 11+5 11+0 Alpha 1/19/79 6+5 9+0 3/23/79 10+5 9+0 5/25/79 1870.4 1577+2.3 I 8 eta 1/19/79 16+5 16+0 3/23/79 1675 1571.0 5/25/79 2270.4 2111.0 Air Particulates Alpha 1/5/79 5+5 4.3+1 3/30/79 1475' 13.771 6/29/79 975 10+1~ 10/5/79 1075 1073+0.6 12/28/79 7 1211-Beta 1/5/79 1815 19.311 3/30/79 63+5 58.7+2 6/29/79 3075 29.771 10/5/79 3175 29+076 12/28/79
- 307311.5 l
.m
,e -
Report 411-80.25 J APPENDIX B Analytical Results of Individual Samples l
1 TABLE B-1 Diablo Canyon Power Plant 1979 Annual Report Water Samples, Collected 1979 (pCi/1) Sample Date Gross (Station No.) Collected Beta 3H 54Mn 59Fe 58C0 60Co 65Zn 95Zr 95Nb 131I 134Cs 137Cs 140Ba 140La Others 79075 (19)* 2/27/79 NA NA <2.3 <6.6 <3.2 <2.5 <5.9 <5.7 <3.2 <2.3 <2.6 Seawater <2.8 <5.3 <2.7 - 79076 (21) 2/27/79 3.85+ NA <0.9 <1.6 <0.9 <0.9 <1.8 <1.6 <0.9 <1.2 <0.9 <0.9 Surface Water 0.47- <2.7 <1.3 - 79077 (20) 2/27/79 3.28+ NA <2.8 <8.8 <3.3 <3.6 <7.2 <5.7 <3.8 <5.8 <3.2 Surface Water 0.43- <3.1 <11 <6.3 - 79200 (19)* 5/15/79 NA <161 <4.2 <14 <5.1 <3.1 <7.7 <9.8 <5.6 <130 <3.7 Seawater <3.9 <87 <42 - 79201 (20) 5/15/79 3.17+ <161 <1.9 <6.6 <2.5 <1.7 <3.9 <5.9 <2.8 <1.8 Surface Water <62 <1.8 <39 <19 0.30- - 79202 (21) 5/15/79 3.91+ <161 <3.4 <5.0
?
<13 <3.8 <9.2 <11 <6.3 <142 <3.8 <3.9 <86 <39 Surface Water 0.35- -
79402 (19)* 8/9/79 NA <351 <1.9 <6.2 <2.5 <2.0 <4.6 <4.5 <2.7 <33 <2.0 <2.0 Seawater <25 <12 - 79410 (20) 8/9/79 2.82+ <350 <4.4 <13 <6.2 <4.3 <9.4 <11 <6.0 <80 <4.6 <4.5 <62 Surface Water 0.26- <26 - 79411 (21) 8/9/79 3.10+ <350 <2.0 <5.4 <2.4 <1.7 <4.1 <4.4 <2.6 <55 <1.8 <1.7 <37 Surface Water <16 0.29- - 79524 (19)* 11/13/79 NA <206 <3.5 <6.7 <3.9 <3.0 <7.2 <8.1 <4.3 <6.8 <3.6 <3.3 Seawater <13 <10 - 79526 (20) 11/13/79 2.25+ <109 <2.0 <3.8 <2.0 <2.0 <4.0 <4.4 <1.9 <3.5 <2.0 Surface Water <1.9 <7.3 <5.0 0.21- - 79527 (21) 11/13/79 2.89+ <108 <3.5 <6.7 <3.9 <3.0 <7.2 <8.1 <4.3 <6.8 <3.6 <3.3 <13 <10 Surface Water 0.25- -
*5 ample analyzed at DER, then sent to State Sanitation and Radiation Laboratory.
y . . . . . . - . B-2 Report 411-80.25 TABLE B-2 Diablo Canyon 1979 Annual Repor.t Airborne Radioactivity Station 1 (pCi/m3 ), First Quarter Sample Collection Number YIj*)* (m Date Counting Date Gross Beta Activity 1311 79005 367 1/8/79 1/29/79 0.03810.003 1/ 79016 448 1/15/79 1/25/79 0.02210.001 t 79028 550 1/24/79 2/12/79 0.04610.003 79034 306 1/29/79 2/13/79 0.03110.002 79044 427 2/5/79 2/14/79 0.03110.002 79058 550 2/14/79 2/23/79 0.04810.003 79066 367 2/20/79 2/26/79 0.02510.001 79081 536 3/1/79 3/9/79 0.02810.002 79108 258 3/5/79 3/10/79 0.02510.002 79119 428 3/12/79 3/16/79 0.04110.003 79132 428 3/19/79 3/29/79 0.02410.002 79137 470 3/27/79 4/2/79 0.04610.004 79149 381 4/2/79 4/13/79 0.03510.002 Quarterly Composite 1/2/79-4/2/79 5/3/79 144Ce = 0.002+0.001 134,137Cs = <U.01 1/Unless specified, iodine-131 concentrations were determined to be
<0.07 pCi/m3, s
,e B-3 Report 411-80.25 TABLE B contd.
Airborne Radioactivity Station 1 (pC1/m3), Second Quarter Sample Volume Collection Counting Gross Beta Number (m ) Date __ Date Activity 1311 79159 493 4/10/79 4/20/79 0.02810.002 1/ 79165 365 4/16/79 4/24/79 0.03110.002 79175 473 4/24/79 5/1/79 1 0.03610.002 79184 384 4/30/79 5/2/79 0.03410.002 79194 427 5/7/79 5/10/79 0.02310.002 79231 958 5/23/79 5/25/79 0.02910.001 79237 383 5/29/79 6/4/79 0.02110.002 79282 1037 6/15/79 6/20/79 0.03210.001 79288 424 6/22/79 6/28/79 0.01310.001 79295 667 7/3/79 7/10/79 0.01710.001 Quarterly Composite 4/2/79-7/3/79 8/7/79 7Be = 0.05910.007 134,137Cs = <0.01 T/unless specified, iodine-131 concentrations were determined to be
<0.07 pC1/m3 I
mr B-4 Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 1 (pCi/m3 ), Third Quarter Sample V lume Collection Counting Gross Beta Number (m ) Date Date Activity 1311 79302 377 7/9/79 7/12/79 1/ 0.01010.001 79318 428 7/16/79 7/19/79 0.01810.002 79324 429 7/23/79 7/26/79 0.01710.001 79332 427 7/30/79 8/1/79 0.029+0.002 79351 483 8/7/79 8/13/79 0.01710.002 79358 477 8/15/79 8/17/79 0.02710.002 79366 384 8/21/79 8/24/79 0.01310.001 79378 411 8/28/79 8/30/79 0.02310.002 79418 500 9/5/79 9/13/79 0.01210.001 79423 418 9/12/79 9/17/79 0.02010.002 79432 324 9/17/79 9/21/79 0.03910.003 79448 550 9/26/79 10/2/79 0.03410.002 79454 353 10/2/79 10/4/79 0.07610.005 Quarterly Composite 7/3/79-10/2/79 10/5/79 7Be = 0.05010.004 134,137Cs = <0.01 1/Unless specified, iodine-131 concentrations were determined to be
<0.07 pCi/m3, 4
4 l
Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 1 (pCi/m3 ), Fourth Quarter Sample Volume Collection Counting Gross Beta Number (m ) Date Date Activity 1311 79463 442 10/9/79 10/15/79 0.04410.003 1/ 79475 487 10/17/79 10/24/79 0.02210.002 79478 307 10/22/79 10/26/79 0.01910.002 79490 430 10/29/79 11/1/79 0.02410.002 79498 426 11/5/79 11/8/79 0.02510.002 79516 550 11/14/79 11/19/79 0.04410.003 79536 371 11/20/79 11/29/79 0.04910.004 79540 365 11/26/79 11/29/79 0.02910.002 79559 428 12/3/79 12/7/79 0.05110.004 79580 429 12/10/79 12/17/79 0.05210.004 79596 428 12/17/79 12/21/79 0.07010.004 79602 418 12/24/79 12/31/79 0.03010.002 79611 426 12/31/79 1/7/80 0.02410.002 Quarterly Composite 10/2/79-12/31/79 1/8/80 78e = 0.08410.007 g 134,137Cs = <0.01 y unless specified, iodine-131 concentrations were determined to be
<0.07 pCi/m3 a
B-6 Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 9 (pCi/m3 ), First Quarter Sample Volme Collection Counting Gross Beta Number (m ) Date Date Activity 1311 79007 428 1/10/79 1/29/79 1/ 0.04010.002 79019 427 1/17/79 1/25/79 0.02010.002 79027 428 1/24/79 2/12/79 0.05810.004 79039 428 1/31/79 2/13/79 0.03310.002 79047 427 2/7/79 2/14/79 0.03410.002 79063 428 2/14/79 2/23/79 0.05410.002 79067 428 2/21/79 2/26/79 0.02310.001 79074 428 2/28/79 3/9/79 0.02610.002 79114 428 3/7/79 3/10/79 0.02510.002 79122 428 3/14/79 3/16/79 0.05310.003 79136 428 3/21/79 4/2/79 0.04010.003 79140 428 3/28/79 4/6/79 0.04510.002 Quarterly Composite 1/3/79-3/28/79 5/3/79 134,137Cs = <0.01
-1/Unless specified, iodine-131 concentrations were determined to be
- <0.07 pCi/m3, i
l
B-7 Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 9 (pCi/m 3), Second Quarter YI Sample 3 Collection Counting Gross Beta Number (m ) Date Date Activity 131I 79152 428 4/4/79 4/16/79 0.03110.002 1/ 79164 428 4/11/79 4/23/79 0.02910.002 79174 487 4/19/79 4/25/79 0.02610.001 79178 ' 367 4/25/79 5/2/79 0.04010.002 79187 425 5/2/79 5/4/79 0.03310.003 79197 428 5/9/79 5/10/79 0.080101004 79209 489 5/17/79 5/24/79 0.'d2910.001 79234 367 5/23/79 5/25/79 0.04210.003
~
79240 427 5/30/79 6/4/79 0.02210.001 79247 428 6/6/79 6/11/79 0.04010.003 ' _ 79276 428 6/13/79 6/18/79 ' 0.02810.002 79287 489 6/21/79 6/25/79 0.01610.001 79291 367 6/27/79 6/29/79 0.02010.001 79294 366 7/3/79 7/6/79 0.02610.001 Quarterly Composite 3/28/79-7/3/79 8/8/79 78e = 0.04010.006
! 134,137Cs = <0.01 l
1/Unless specified, iodine-131 concentrations were determined to be ^
<0.07 pCi/m3 t
O
- l I.
1 . m
MP 8-8 Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 9 (pCi/m3 ), Third Quarter Sample Volume Collection Counting Gross Beta Number _m) ( Date Date Activity 1311 79307 489 7/11/79 7/17/79 1/ 0.01010.001 79321 428 7/18/79 7/19/79 0.04110.002 79329 428 7/25/79 7/26/79 0.02710.002 79337 428 8/1/79 8/3/79 0.02410.001 79343 428 8/8/79 8/13/79 0.01510.002 79359 428 8/15/79 8/17/79 0.02610.002 79369 427 8/22/79 8/27/79 0.01110.001 79399 855 9/5/79 9/10/79 0.01010.001
, ' 79424 428 9/12/79 9/17/79 0.02010.002 79435 ' 428 9/19/79 9/24/79 0.03510.002 794d7 428 9/26/79 10/3/79 0.03310.003
. 7945'7 428 10/3/79 11/16/79 0.04410.002 Quarterly Composite 7/3/79-10/3/79 10/6/79 7Be = 0.04710.003
, 134,137Cs = <0.01
[ -
~ 1/Unless specified, iodine-131 concentrations were determined to be
. <0.07 pCi/m3,
~
s -
B-9 Report 411-80.25 TABLE B contd. j Airborne Radioactivity Station 9 (pCi/m3), Fourth Quarter Y I"** Sample Collection Counting Gross Beta Number (m ) Date Date Activity 1311 79466 427 10/10/79 10/15/79 0.04310.003 1/ 79474 428 10/17/79 10/23/79 0.01910.002 79485 ,428 10/24/79 10/30/79 0.01810.002 79493 428 10/31/79 11/5/79 0.01810.001 79505 428 11/7/79 11/13/79 0.02110.002 79513 428 11/14/79 11/19/79 0.04910.003 79533 427 11/21/79 11/29/79 0.04810.004 79576 856 12/5/79 12/7/79 0.06110.002 79586 428 12/12/79 12/17/79 0.05610.003 79599 428 12/19/79 12/21/79 0.11910.005 79605 429 12/26/79 1/2/80 0.02310.001 79616 426 1/2/80 1/7/80 0.02710.002 Quarterly Composite 10/3/79-1/2/80 1/9/80 7Be = 0.08410.010 134,137Cs = <0.01 I 1/Unless specified, iodine-131 concentrations were determined to be
<0.07 pCi/m3, I
t
B-10 Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 12 (pCi/m3 ), First Quarter Volume Sample 3 Collection Counting Gross Beta Number (m ) Date Date Activity 131I 79006 364 1/8/79 1/29/79 0.05610.003 1/ 79017 444 1/15/79 1/25/79 0.02210.001 79029 ,550 1/24/79 2/13/79 0.05010.002 79035 306 1/29/79 2/13/79 0.03510.003 79045 427 2/5/79 2/14/79 0.02010.002 79059 589 2/15/79 2/23/79 0.04710.003 79068 330 2/20/79 2/27/79 0.02110.002 79082 537 3/1/79 3/9/79 0.02710.002 79109 258 3/5/79 3/10/79 0.02410.002 79120 429 3/12/79 3/18/79 0.04210.002 79133 426 3/19/79 3/29/79 0.03010.002 79138 467 3/27/79 4/6/79 0.04510.003 79150 380 4/2/79 4/16/79 0.03510.002 Quarterly Composite 1/2/79-4/2/79 5/3/79 7Be = 0.066+0.004 134,137Cs = <0.01 1 I l- 1/Unless specified, iodine-131 concentrations were determined to be i- <0.07 pCi/m3 4 1 i b 1 i J
w B-ll Report 411-80.25 TABLE 8 contd. Airborne Radioactivity Station 12 (pCi/m 3), Second Quarter Sample Volume Collection Counting Gross Beta Number (m ) Date Date Activity 131I 79160 501 4/10/79 4/20/79 1/ 0.02910.002 79166 403 4/17/79 4/24/79 0.02810.002 79176 428 4/24/79 5/1/79
' 0.04310.002 79185 .388 4/30/79 5/3/79 0.03310.002 79195 427 5/7/79 5/10/79 0.02710.002 79232 955 5/23/79 5/25/79 0.03610.001 79238 390 5/29/79 6/4/79 0.02310.002-79283 1037 6/15/79 6/20/79 0.03310.001 79289 431 6/22/79 6/28/79 0.01610.001 79296 652 7/3/79 7/10/79 0.01710.001 Quarterly Composite 4/2/79-7/3/79 8/3/79 7Be = 0.06210.007 134,137Cs = <0.01
~ 1/Unless specified, iodine-131 concentrations were determined to be
[ <0.07 pCi/m3 l i li I L
l .I i
.l B-12 Report 411-80.25
-( l l TABLE B contd.
, Airborne Radioactivity Station 12 (pC1/m3 ), Third Quarter Sample Collection Counting Gross Beta Number Y(m I[)* Date Date Activity 131I g 79303 386 7/9/79 7/13/79 0.01110.001 1/
79319 428 7/16/79 7/19/79 0.02810.002 79325 i 429 7/23/79 7/26/79 0.02110.002 79333 427 7/30/79 8/1/79 0.04910.003 79352 483 8/7/79 8/14/79 0.01710.001 79360 474 8/15/79 8/20/79 0.021+0.002 79367 382 8/21/79 8/24/79 0.01810.001 79379 407 8/28/79 8/30/79 0.050+0.002 79419 510 9/5/79 9/13/79 0.01310.002 79425 407 9/12/79 9/17/79 0.02810.002 79433 328 9/17/79 9/24/79 0.04210.003 79449 551 9/26/79 10/2/79 0.03110.002 79455 365 10/2/79 10/4/79 0.125f0.007 Quarterly Composite 7/3/79-10/2/79 10/6/79 7Be = 0.048+0.002 134,137Cs = <0.01
- 1/Unless specified, iodine-131 concentrations were determined to be I <0.07 pCi/m3 A
f
I
.I B-13 Report 411-80.25 TABLE B contd.
f Airborne Radioactivity
~
I Station 12 (pCi/m3 ), Fourth Quarter t Sample Volume
- Collection Counting Gross Beta
-l Number (m ) Date Date Activity 131I i
j 79464 429 10/9/79 10/15/79 0.045+0.003 1/ i 79476 487 10/17/79 10/24/79 0.031+0.003 79479 308 10/22/79 10/26/79 0.02010.002 i 79491 430 10/29/79 11/1/79 0.02510.002 i 79499 425 11/5/79 11/8/79 0.02910.002 79517 550 11/14/79 11/20/79 0.04210.003 79537 370 11/20/79 11/29/79 0.04110.003 79541 366 11/26/79 11/29/79 0.03410.002 79560 427 12/3/79 12/7/79 0.04110.003 79581 429 12/10/79 12/17/79 0.04910.004 79597 429 12/17/79 12/21/79 0.05710.003 79603 418 12/24/79 12/31/79 0.03910.002 i 79612 428 12/31/79 1/7/80 0.02610.002 4 Quarterly Composite 10/2/79-12/31/79 1/9/80 7Be = 0.068+0.004 - 134,137Cs = <0.01
? . 1/Unless specified, iodine-131 concentrations were determined to be p <0.07 pC1/m3, 1
i r,
~ - - - - . -. , -, . . . . . . , - __ _ - . - _ _ - . _ _ _ - _ _ , , - - . _ _ -_
I
)
B-14 Report 411-80.25 i TABLE B contd.
! Airborne Radioactivity Station 27 (pCi/m3 ), First Quarter l
Y I"** l Sample Collection Counting Gross Beta
, Number (m ) Date Date Activity 131I i ! 2/ 1/8/79 1/
j 79018 447 1/15/79 1/25/79 0.02210.002 l 79030 1 550 1/24/79 2/13/79 0.05110.003 79036 306 1/29/79 2/14/79 0.03410.002 I 79046 427 2/5/79 2/14/79 0.02510.001 79060 551 2/14/79 2/23/79 0.058+0.003 79069 367 2/20/79 2/28/79 0.02410.001 79083 536 3/1/79 3/9/79
- 0.02410.002 79110 258 3/5/79 3/10/79 0.02110.002 79121 428 3/12/79 3/18/79 0.03710.002 79134 428 3/19/79 4/2/79 0.03010.002 79139 469 3/27/79 4/6/79 0.042+0.003 79151 387 4/2/79 4/16/79 0.03910.002 Quarterly Composite 1/15/79-4/2/79 5/4/79 134,137Cs = <0.01 1/Unless specified, iodine-131 concentrations were determined to be
. <0.07 pCi/m3, 2/ Sampler malfunction - no sample collected.
V .
q _ . . __ _ _ .. _ _
. I B-15 Report 411-80.25 TABLE B contd.
. Airborne Radioactivity Station 27 (pCi/m 3), Second Quarter Y I"**
Sample Collection Counting Gross Beta 3 Number (m ) Date Date Activity 1311 79161 489 4/10/79 4/23/79 1/ 0.033_+0.002 i 79167 362 4/16/79 4/24/79 0.028+0.002 79177 i 473 4/24/79 5/1/79 0.033+0.002 79186 386 4/30/79 5/3/79 0.033+0.002 79196 427 5/7/79 5/10/79 0.029_+0.003 79233 957 5/23/79 5/25/79 0.037+0.002 l 79239 388 5/29/79 6/4/79 0.025_+0.001 79284 1037 6/15/79 6/20/79 0.034+0.002 79290 430 6/22/79 6/28/79 0. 017_+0.001
- 79297 656 7/3/79 7/23/79 0.018+0.001 Quarterly Composite 4/2/79-7/3/79 8/6/79 78e = 0.044_+0.005 l 134,137Cs = <0.01
{ ij 1/Unless specified, iodine-131 concentrations were determined to be
<0.07 pCi/m3 ll q
F l'
- i L
t
B-16 Report 411-80.25 TABLE B contd.
, Airborne Radioactivity Station 27 (pCi/m3 ), Third Quarter Sample Volume Collection Counting Gross Beta Number (m ) Date Date Activity 131I 79304 381 7/9/79 7/13/79 1/
0.01410.001 79320 428 7/16/79 7/19/79 0.02210.002 79326 i 428 7/23/79 7/26/79 0.01610.001 79334 425 7/30/79 8/2/79 0.01910.001 79353 483 8/7/79 8/14/79 0.01410.002 79361 475 8/15/79 8/20/79 0.01810.002 79368 385 8/21/79 8/27/79 0.01110.001 79380 409 8/28/79 9/4/79 0.01510.001 79420 502 9/5/79 9/13/79 0.01510.001 79426 412 9/12/79 9/18/79 0.02010.002 79434 326 9/17/79 9/24/79 0.03510.003 79450 550 9/26/79 10/3/79 0.03210.002 79456 359 10/2/79 10/4/79 0.07110.005 Quarterly Composite 7/3/79-10/2/79 10/8/79 7Be = 0.043+0.005
.j 134,137Cs =~<0.01 1 .3 1/Unless specified, iodine-131 concentrations were determined to be ! <0.07 pC1/m3 i
i i H n I!
B-17 Report 411-80.25 TABLE B contd. Airborne Radioactivity Station 27 (pC1/m3 ), Fourth Quarter Sample V lume Collection Counting Gross Beta Number (m ) Date Date Activity 13il 79465 435 10/9/79 10/15/79 0.044_+0.003 1/ 79477 487 10/17/79 10/24/79 0.033+0.003 79480 305 10/22/79 10/26/79 0.011_+0.001 79492 430 10/29/79 11/5/79 0.017+0.001 79500 425 11/5/79 11/8/79 0.021_+0.002 79518 550 11/14/79 11/20/79 0.041+0.003 79538 370 11/20/79 11/29/79 0.034_+0.003 79542 365 11/26/79 11/30/79 0.027_+0.002 79561 '427 12/3/79 12/7/79 0.045_+0.003
.i 79582 429 12/10/79 12/17/79 0.034+0.002 79598 427 12/17/79 12/21/79 0.056_+0.003 ii 79604 418 12/24/79 1/2/80 0.033+0.002 79613 423 12/31/79 1/7/80 0.022+0.001 i
ti
!! Quarterly Composite 10/2/79-12/31/79 1/10/80 7Be = 0.070+0.007 134,137Cs = <0.01
' b'
.h i
1/Unless specified, iodine-131 concentrations were determined to be
<0.07 pCi/m3, b.
Te tp t t I-en J- -
I Lz r;; .- -~ _--~7 , - 7 ~ ,. - . _ TABLE B-3
.Diablo Canyon Power Plant 1979 Annual Report Fish and Seafood Samples, Collected 1979 (pCi/kg wet)
Date Ratio 65Zn 134Cs 137Cs Others Dry / Wet 54Mn 59Fe 58C0 60Co Sample (Station No.) Collected '
<15.3 <78.3 <29.3 <14.6 <38.5 <15.3 <14.7 2/27/79 0.301 79088-M (19)*
Black Abalone Meat
<11.5 -
79088-V (19) 2/27/79 0.254 <12.3 <58.7 <20.8 <11.5 <29.2 <12.2 Black Abalone Viscera
<49.6 <22.8 <72.4 <25.7 <25.1 0.204 <28.2 <176 79091 (19) 2/12/79 Blue Rockfish 2/12/79 0.209 <8.15 <72.5 <17.7 <7.13 <22.2 <7.00 10.713.55 79092 (19)
Striped Perch
- L 0.534 <26.8 <213 <51.7 <25.5 <67.8 <21.3 62.5120.3 79094 (26 Commercial) 2/21/79 Red Snapper 0.524. <31.4 <235 <76.5 <30.0 <93.8 <28.2 72.3111.0 79095 (26 Commercial) 2/21/79 Rockfish 1/27/79 0.200 <9.38 <90.8 <22.6 <7.84 <22.4 <8.50 <7.92 79143 (22)
Pismo Clams
<80.5 <23.8 <70.7 <24.3 <24.3 6/11-12/79 0.258 <28.1 <351 79412 (22)
Pismo Clams
<34.7 <24.4 <61.6 <26.5 <25.6 5/14/79 0.292 ' <26.3 <106 79261 (19)*
Black Abalone Meat 0.234 <31.1 <99.0 <46.8 <27.1 <65.1 <30.9 <33.5 - 79262 (19) 5/14/79 Black Abalone Viscera
- Sample analyzed at DER, then sent to State-Sanitation and Radiation Laboratory.
i l
t- ~~
.;T: r r : TT:_T.T; ~' '
'Ti~ ~ :::: ^ _ ._ .
j TABLE B contd. Date Ratio Dry / Wet 54Mn 59Fe 58C0- 60Co 65Zn 134Cs 137Cs Others Sample (Station No.) Collected 5/18/79 0.201 <17.3 <73.6 <24.9 <17.9 <39.2 <15.9 <18.9 - - 79263 (19) - Striped Perch 5/18/79 0.2 99 <39.5 <116 <40.7 <36.2 <77.4 <35.0 <33.8 - 79264 (19) . Red Abalone Meat 5/18/79 0.351 <36.9 <112 <53.4 <36.2 <79.7 <38.3 <36.2 - 79265 (19) Red Abalone Viscera 79271 (26 Commercial) 5/17/79 0.221 <9.39 <54.8 <14.3 <8.38 <27.8 <7.69 <12.2 - Red Snapper 1 79272 (26 Connercial) 5/17/79 0.215 <9.76 <58.9 <18.6 <11.8 <25.8 <9.05 18.7+4.52 -
,[,,
Ling Cod o 0.367 <8.40 <52.1 <14.3 <8.22 <23.0 <6.64 <8.88 - 79273 (26 Commercial) 5/17/79 Salmon 0.209 <21.5 <118 <40.8 <19.0 <52.3 <20.4 <21.1 - 79406 (19) 8/8/79 Striped Perch 79407 (19) 8/8/79 0.228 <17.3 <108 <31.5 <18.0 <41.2 <15.6 <17.5 - Blue Rockfish , l 0.285 <27.8 <63.0 <30.5 <29.1 <69.0 <28.1 <32.2 - 79408-M (19)* 8/9/79 Black Abalone Meat 79408-V(19) 8/9/79 0.270 <24.3 <109 <42.7 <23.2 <57.8 <26.5 <26.7 - Black Abalone Viscera
<24.9 l 0.2 88 <26.7 <147 <50.7 <23.5 <64.2 <29.1 -
79413 (22) 8/9/79 Pismo Clams
*5 ample analyzed at DER, then sent to State Sanitation and Radiation Laboratory.
~
- --- _N-MQ. , ~_ .-._. _ . _ _. _ ,,, .
I TABLE B contd. Date Ratio 652n 134Cs 137Cs Others j Dry / Wet 54Mn 59Fe 5300 60Co Sample (Station No.) Collected l - j 0.226 <13.2 <48.1 <16.7 <16.2 <39.8 <13.9 <17.0 ' l 79443 (26 Commercial) 9/15/79 Red Snapper l <31.6 <13.8 <11.1 <27.5 <10.0 <11.3 - 0.352 <9.72 l 79444 (26 Comercial) 9/15/79 . Salmon
<7.17 <17.5 <8.15 <6.91 <18.4 <7.17 <7.43 12/27/79 0.288 79543 (19)*
Black Abalone Meat
<41.0 <98.4 <44.1 <46.7 -
12/27/79 0.190 <43.7 <99.4 <45.2 , 79544 (19) ~ Black Abalone Viscera !
<61.9 <34.3 <95.0 <45.4 <43.7 11/21/79 0.212 <47.5 <141 79545 (19) So
! Blue Rockfish 3
<9.52 <6.71 <18.7 <6.19 18.0+3.60 -
11/27/79 0.225 <6.30 <28.1 '~ i 79594 (26 Commercial) Ling Cod
<9.21 <40.5 <13.8 <10.1 <26.3 <8.91 20.2+5.50 -
11/27/79 0.229 ! 79595 (26 Comercial) Red Snapper i i ;
- Sample analyzed at DER, then sent to State Sanitation and Radiation Laboratory.
I 1 i I ! 1 l . !
B-21 Report 411-80.25 TABLE B-4 Diablo Canyon Power Plant 1979 Annual Report Milk Samples, Collected 1979 (pCi/1) Sample Date 134Cs 137Cs 140Ba 140La Others (Station No.) Collected 1311
<0.20 <1.6 <1.7 <22 <9.0 -
79012 (25) 1/14/79
<0.20 <3.6 <4.1 <74 <29 -
79013 (30) 1/14/79
<1.9 <12 -
79056 (25)* 2/12/79 <0.20 1.811.23 <26
<0.20 <1.8 <2.0 <27 <11 -
79057 (30)* 2/12/79
<0.20 <6.4 <7.5 <18 <7.7 -
79125 (25) 3/18/79
<0.20 <3.7 <4.2 <31 <13 -
79126 (30) 3/18/79
<0.20 <6.2 <6.8 <18 <7.3 -
79170(25) 4/22/79
<0.20 <6.4 <7.4 <18 <8.8 -
79171 (30) 4/22/79
<0.20 <1.9 <2.3 <5.4 <2.4 -
79212(25)* 5/21/79
<0.20 <4.2 <5.0 <13 <5.0 -
79213 (30)* 5/21/79
<0.20 <1.9 <5.7 <2.1 -
79280(25) 6/17/79 2.311.60
<0.20 <3.9 <4.3 <12 <4.4 -
79281 (30) 6/17/79
<0.20 <4.6 <5.6 <13 <5.9 -
79314 (25) 7/15/79
<0.20 <2.1 <2.3 <6.4 <2.4 -
79315 (30) 7/15/79
<0.20 <2.8 <3.4 <9.9 <3.6 -
79362 (25)* 8/19/79
<0.20 <1.7 <1.8 <5.0 <2.0 -
79363 (30)* 8/19/79
<0.20 <1.9 <2.1 <5.0 <2.4 -
79427 (25) 9/16/79
<0.20 <2.9 <3.0 <7.7 <3.4 -
79428 (30) 9/16/79
<0.20 <1.7 <2.0 <5.6 <3.9 -
79481 (25) 10/21/79
<0.20 <2.8 <3.2 <9.8 <6.6 -
79482 (30) 10/21/79
<0.20 <2.1 <2.4 <6.1 <4.4 -
79522(25)* 11/15/79
<0.20 <4.6 <4.6 <12 <8.7 -
i 79523 (30)* 11/15/79
<0.20 <4.6 <4.6 <12 <8.7 -
79588(25) 12/16/79
<0.20 <2.1 <2.4 <6.1 <4.4 - , 79589 (30) 12/16/79
- Duplicate sample sent to State Sanitation and Radiation Laboratory.
l F b a
B-22 Report 411-80.25 TABLE B-5 Diablo Canyon Power Plant 1979 Annual Report
- Food Products, Collected 1979 (pCi/kg wet)
Sample Date Ratio Collected Dry / Wet 131I 134Cs 137Cs Others fStation No.)' O'.187 <22 <5.1 <5.8 78e=148+22 79054 (23)2_/ 2/12/79 Brussels Sprouts > 0.092 <24 <3.4 7.1+2.5 144Ce=19+12 79055(25) 2/12/79 - 7Be=367+30. _ Artichoke Greens 0.141 <78111/ <5.9 <6.5 - 79078(16) 2/28/79 Snow Peas 0.080 <1401/ <13 <13 - 79214(23)2_/ 5/21/79
- Romaine Lettuce 0.127 <1471/ <9.2 <10 -
79215(25) 5/21/79 Broccoli Greens
' <481 1I <7.3 -
5/30/79 0.165 <7.8 79274 (16)
' Sugar Peas 0.136 <12 <5.0 <5.7 7Be=56+18 79364 (23)2/ 8/19/79 Celery Greens 0.206 <59 <20 <23 79365 (25) 8/19/79 Corn Greens 0.148 <19 <2.4 <2.5 -
- i. .79441 (16) 9/17/79 Snow Peas
<7.8 <7.5 -
!' 79528 (23)2_/ 11/16/79 0.102 <34 Cabbage Greens e
0.124 <18 <4.2 <4.5 7Be=84.4+22 t' 11/16/79 - 79529(25) Brussels Sprouts [? <0.97 <6.4 <6.6 - [> 79530(16) 11/15/79 0.161
.i, Snow Peas e
1/ Th ese samples had an abnormally long delay time between collection and f counting. t 2/These samples analyzed at DER then sent to State Sanitation and Radiation 1 f Laboratory. [ i
B-23 Report 411-80.25 TABLE B-6 Diablo Canyon Power Plant 1979 Annual Report
- Sediment Samples, Collected 1979 (pCi/kg dry)
Sample Date (Station No.) Collected 134Cs 137Cs Others Comments 2/27/79 29,14 <17 - 79093(19) 5/15/79 <25 <25 - - 79199 (19) 79403(19) 8/9/79 22,115 22,115
' 33,13 - -
79525 (19) 11/13/79 21,18 1 I
'l.
1 r
}.=
o i I i-t I:
-h I
_ m
.. w - ,,,w._,-- ..%.. . TABLE B-7 Diablo Canyon Power Plant 1979 Annual Report Dosimeter Measurements (microroentgens per hour) Sta- Month Annual (1) tion Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. , Total 1 10.35 10.28 11.28 9.85 9.83 11.81 8.58 11.33 10.58 9.64 9.06 10.48 89.8 2 7.72 6.37 7.46 7.36 7.33 7.47 9.03 7.33 7.38 6.47 5.89 6.55 63.1 3 10.71 11.41 12.66 9.79 10.15 10.49 8.67 11.91 10.58 - 10.23 8.81 9.88 91.4 4 11.99 12.05 13.28 12.10 15.01 12.61 9.83 13.82 12.90 11.24 10.21 11.51 107.0 5 8.27 7.71 9.62 6.68 9.34 8.26 9.57 8.67 7.64 6.92 6.19 7.61 70.5 6 8.29 8.36 10.09 8.84 10.32 9.18 7.27 9.42 8.56 8.23 7.71 7.85 75.8 7 9.40 7.99 8.75 8.26 10.07 8.46 6.90 9.09 8.28 7.89 7.44 8.36 73.7 8 14.06 11.67 14.83 11.79 15.52 11.47 10.83 11.99 11.07 10.04 9.21 10.23 104.3 9 8.19 7.20 8.87 7.72 9.61 7.99 5.91 8.52 8.15 7.03 6.07 7.31 67.6 ]l 10 6.16 6.13 7.11 6.88 7.59 6.56 5.89 6.73 7.07 5.94 5.17 5.79 56.2 11 6.92 7.47 7.14 6.68 8.16 8.17 5.81 7.51 6.97 5.98 5.76 6.22 60.4 12 10.24 8.68 10.75 9.11 10.27 9.04 7.22 10.38 9.53 8.41 7.96 8.80 80.7 13 6.88 5.71 7.93 5.22 7.90 7.22 5.20 7.38 7.13 5.42 5.47 5.97 56.6 14 10.40 8.21 11.53 9.36 11.10 10.33 8.70 11.81 10.83 9.46 8.68 10.66 88.6 15 9.61 9.70 11.59 9.54 10.89 10.50 8.20 11.52 10.68 8.84 7.71 10.52 87.1 16 9.65 8.94 10.77 9.24 10.01 10.01 7.80 9.91 9.56 9.09 8.08 8.70 81.6 17 8.19 8.29 9.13 7.65 10.22 9.46 7.58 10.19 9.86 8.28 7.17 8.41 76.3 18 6.22 5.37 6.64 6.92 7.39 6.29 5.24 6.57 7.31 5.32 4.68 5.78 53.9 27 6.22 5.82 7.49 5.94 7.45 6.51 5.05 6.18 6.40 5.75 4.68 5.91 53.6 28 10.59(2) 7.27(3) 6.83(4) 7.17(5) 69.6 29 8.70(2) 9.03(3) 10.10(4) 9.21(5) 81.2 (1)Milliroentgens per year. (2) Quarterly data - January, February, March. (3) Quarterly data - April, May, June. (4) Quarterly data - July, August, September. (5) Quarterly data - October, November, December.
' 4 TABLE B-8 Diablo Canyon Power Plant 1979 Annual Report Indicator Marine Sanples, Collected 1979 (pCi/kg wet)
Date Ratio Dry / Wet 54Mn 59Fe 58Co 60Co 65Zn 134Cs 137Cs Others Sample (Station No.) Collected ~ 2/27/79 0.166 <17.6- <130 <33.4 <20.0 <60.4 <14.2 <15.2 - 79086 (19)* Bull Kelp Blade
<14.4 <97.1 <23.2 <14.4_ <47.8 <11.2 <11.9 -
79086 (19) 2/27/79 0.118 . Bull Kelp Pneumatocyst
<11.2 <79.0 <18.6 <9.54 <28.3 <8.28 <9.61 -
2/27/79 0.190 79087 (19) , Iridaea 2/27/79 0.251 <9.14 <24.2 <11.3 <8.13 <23.3 <9.16 <9.74 - 79089 (19) Gooseneck Barnacle Meat
<48.0 <13.8 <7.16 <21.8 <8.92 <8.81
- i' 2/27/79 0.534 <38.0 Di 79089 (19)
Gooseneck Barnacle Shell
<15.5 <99.6 <33.8 <13.5 <33.3 <15.0 <14.6 79090 (19) 2/27/79 0.170 California Mussel Meat 5/14/79 0.138 <6. 84 <25.9 <9.44 <6.82 <16.6 <6.32 <6.84 -
79260 (19) California Mussel Meat
<2.58 <13.0 <3.86 <2.61 <7.03 <2.04 <2.32 -
79266 (19) 5/14/79 0.144 Iridaea 5/14/79 0.247 <7.01 <25.7 <10.0 <6.22 <15.8 <6.64 <6.92 - 79267 (19) Gooseneck Barnacle Meat
<11.9 <36.5 <16.3 <10.5 <25.0 <11.3 <10.7 79268 (19) 5/14/79 0.488 Gooseneck Barnacle Shell 79269 (19)* 5/10/79 0.036 <1.80 <9.30 <2.69 <1.75 <5.15 <1.57 <1.67 Bull Kelp Blade
- Sample analyzed at DER, then sent to State Sanitation and Radiation Laboratory.
O * . _ - . _ ,,~.. ., -.. .. - -- - - - TABLE B contd. Date Ratio Sample (Station No.) Collected Dry / Wet _54Mn _59Fe 58Co 60Co _65Zn 134Cs 137Cs Others 79270 (19) 5/10/79 0.077 Bull Kelp Pneumatocyst <17.9 <9.70 <28.0 <16.2 <50.5 <16.5 <16.6 - 79404 (19)* 8/9/79 0.051 <1.93 Bull Kelp Blade <7. % <2.74 <1.96 <4.93 <1.84 <1.82 - 79404 (19) 8/9/79 0.093 Bull Kelp Pneumatocyst <12.2 <53.2 <16.6 -<12.0 <32.7 <10.7 <11.1 - 79405 (19) 8/9/79 0.178 <9.47 Iridaea <34.9 <13.0 <7.48 <21.7 <8.51 <8.46 - 79409 (19) 8/9/79 0.259 Gooseneck Barnacle Meat <8.88 <46.4 <15.3 <8.86 <23.8 <8.99 <8.44 - 79409 (19) 8/9/79 0.505 <17.3 Gooseneck Barnacle Shell <90.4 <29.9 <17.3 <46.5 <18.7 <16.5 - 79442 (19) 8/9/79 0.161
?
California Mussel Meat. <35.3 <142
<53.6 <27.5 <73.9 <31.9 <32.8 -
79546 (19)* 11/21/79 0.095 <13.3 Bull Kelp Pneumatocyst <56.7 <17.3 <15.3 <38.5 <10.6 <12.7 - 79547 (19) 11/21/79 0.058 Bull Kelp Blade <10.3 <36.4 <13.8 <12.2 <23.4 <9.28 <9.92 - 79553(19) 11/29/79 0.224 <3.47 Gooseneck Barnacle Meat <8.87 <4.05 <3.65 <8.56 <3.45 <3.83 - 79554 (19) 11/29/79 0.503 Gooseneck Barnacle Shell <7.09 <15.4 <6.99 <6.34 <18.2 <6.69
<7.19 -
79555 (19)
- 11/29/79 0.173 Iridaea <4.05 <22.1 <6.40 <4.38 <11.8 <3.72 <3.84 - '
79556 (19) 11/29/79 0.169 California Mussel Meat <35.0 <149 <53.1 <31.9 <79.1 <39.4 <34.5 -
- Sample analyzed at DER, then sent to State Sanitation and Radiation Laboratory .
___ _ _ _ _ _ --}}