ML19206A213

Environ Radiological Monitoring Rept, 1977 Annual Rept

ML19206A213
Person / Time
Site:	Crane
Issue date:	12/31/1977
From:	Metropolitan Edison Co
To:
References
IWL-5990-427, NUDOCS 7904180393
Download: ML19206A213 (64)

Text

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e "#TELEDYNE IWL-5993-427 ISOTOPES METROPOLITAN EDISON CCMPMiY RADIOLOGICAL ENVIRONMENTAL MONITORING REPCRT Prepared for the THREE MILE ISLAND NUCLEAR STATION 1977 ANNUAL REPORT JANUARY 1 THRCUGH DECEMBER 31 Prepared by TELEDYNE ISOTOPES 50 VAN BUREN AVENUE WESTWCCD, NEW JERSEY 07675 b0~192

e TTELELYNE ISOTCFES TABLE OF CONTENTS PAGE LIST OF FIGURES iii LIST OF TA3P.ES iii SLHMAPY 1 INTRODUCTION 3 PROGRAM 4 Objectives. 4 Design 4 Exceptions 5 RESULTS AND DISC' 3SICa 6 Aquatic Environmental 6 Atmospheric Environmental '12 Terrestrial Environment 14 Direct Radiation 16 ASSESSMENT OF IMDACT 18 CCNCLUSIONS 20 REFERENCES 21 APPENDIX A - Sampling Locations 23 APPENDIX B - Data Tables 30 11 50~193

TTELELYNE ISOTCFES LIST OF FIGURES Page 1. Average Tritium Concentrations in the Susquehanna River in tne 11 Vicinity of TMINS 2. Average Gross Beta Concentrations in Airborne Farticulat es in 15 the Vicinity of THI:4S 3. Average Gamma Dose Retes in tha Vicinity of TMINS 17 LIST OF TABLES 7 1. Synopsis of the Operational Radiological Environmental Monitoring Program for TMINS 8 2. Summary of Radionuclide Concentrations in Environmental 3amples from TMINS 10 3. Summary of Direct Radiation Measurements at TFINS 19 4, 1977 Envircnmentel Sa=ple Data which results in Nonroutine Report-ing iii 30~104

g TTELECh'NE ISOTOPES SDetARY This report contains the results of the operational radiological environmental monitoring program (REMP) conducted by Metropolitan Edison Company at Three Mile Island Nuclear Station (TMINS) during the period January 1 through December 31, 1977. Radiation Management Corporation (RMC) participated in the January 1 through August 31 phase of the program, and Teledyne Isotopes (TI) participated in the September 1 through December 31, 1977 phase. The program was designed to meet the Environmental Technical Specifications ( E TS.' for TMINS Unit 41 ('MI-1) anc the Preoperational Requirements for TMINS Unit 42 (TMI-2). (1) Samples taken during 1977 from the aquatic, atmospheric, and terrestrial environments and also direct raciation measurements were alaly:ed and the results are included in this report. Summarized in Table 1 is the synopsis of the operational Radiologic.s. Environmental Monitoring Program for TMINS. The aquatic environmental sampling progr m consisted of the analyses of seventy-two surface water samples from six locations, of eight fish samples from two locations, and of six sediment samples from three locations. The atmospheric environmental sampling piogram included the analyses of four hundred anc one air particulate samples frcm aine Ic-cations, of two hundred 2nd four air iodine samples from four locaticns, and of forty-eight pre:ipitation samples from four locations. The terrestrial environmental sampling program consisted ef the analyses of forty-five milk samples from five locations, of four green leafy vegetables from four locations, of four fruit samples from two locations, of fcur beef and game samples frc= four locations. Direct radiation immersion dose measurements using TLDs were monitored at twenty-one locations during the four quarterly periods of 197 7 for a total c f three hundred and twelve analyses. From this study elevated activities were detected in se'.eral pathways as a result of the September 17, 1977 atmospheric nuclear test by the Peoples Republic of China and of fallout from the 1976 atmospheric nuclear test The elevated radienuclide ccncentrations resulting from the Chinese nuclear test affected both the indicator and background 1cca:icn3 and can thus be attributed to sources other-than the TMINS operatica. f-1 -4. 0 d

TTELEDYNE ISOTOPES Nonroutine reports were required for ten milk sarples, two surface water samples, and one sediment sample in 1977. Five milk samples collected October 1, 1977 and five milk samples collected October 29, 1977 had measurable I-131 activities ranging frca 0.74+-0.18 pCi/ liter to 31+-1 pCi/ liter. See Table 4 for a listing of the I-131 measurements by station num-ber and collection date. A dose to an infant's thyroid of 36 mrem (maximum individual) can be calculated frca the I-131 in milk and is attributed to fallout from the 1977 Chinese nuclear test. The H-3 concentration in surface water at locations 9, and 981, both downstream indicator locations at 0.5 and 1.5 miles scuch c: the site, showed activities slightly above the upstream samples for the July 1 through September 30, 1977 H-3 ccaposite samples. No increase of the H-3 levels at the drinking water locations was detected during the reporting period, and therefore, no measurable dose in drinking water can be attributed to releases of H-3 from TMINS. The sediment sample frcm Staticn 982 collected on October 25, 1977 contained higher than background levels of fission and/or activation products. Cobalt-58, Cs-134, and Cs-137 could be attributed to plant operation. Fission products radionuclides were detected in other media and are attrib-uted to the Chinese weapons test of September 17, 1977 superimposed on fallout from the September 26, 1976 atmospheric nuclear tests. The only significant dose pathway wculd be standing en the shoreline. A conservative calculation of the combined dose frcm all of the fission and activation products monitored in the Cctober sediment sample resulted in an insignificant theoretical dose of 0.45 mrem / year to a maximum exposed individual. The direct radiation immersion dose measurements using TLDs indi-cate only natural environmental radiation was observed in 1977 The sample locatiers chesen and analyses performed are more than adequate for detecting any environmental perturbatien, whether station re-lated or externally caused. Thus it is concluded that the Three Mile Island Nuclear Station did not produce any significant c'.anges in the levels of envircnmental radio-activity. The maximum exposur frcm the observed activity in ene sediment sample could have centributed an insignificant dose

• .o the maximum individual.

50 196

e "TPTELEDYNE ISOTOPES piTPCDUCTICN A complete radiological enviror.nental monitoring program (REMP) for Three Mile Island Nuclear Station (TMINS) Unit I has been cenducted by Metrcpolitan Edison Company since June 1969. The REMP also covers the pre-operatienal program for Unit 2. Radiation Manage 6 nt Corporation has participated in this program since February 21, 19 U. Usults of the pre-operational phase of the REMP up :n June 5, 1974, and of the operational phase (June 5, 1974 through December 31, 1976) were reported in previcus RMP documents (2,3,4,5,6). Met Ed cortracted Teledyne Isctopes to continue the radiological environmental monstaring program after September 1, 1977 and prepare this report in conjunctica sith Met Ed personnel. This repc:t presents in detail the type and nteber of samples analy:ed, the analyses perfor ed and the data generated by r3!C and by TI for the Fried January 1 throu;h December 31, 1977 Interpretation of the data is also pt<:sented. Three Mile Island is the site of an operational nuclear puer unit of the pressuri:ed water reactor (FWR) type. When complete,the sta-o *1 iWe, achieved tion will consist of two reactor units; Unit 1, rated at criticality on June 5, 1974 This marked the beginning of the eperaticnal phase of the REMP. Unit 2, rated at 959 MWe, is under constructicn and scheduled for ccamercial cperation in 1978. The staticn is located on Three Mile Island in the Susquehanr.a River, in Dauphin County, ten miles southeast of Harrisburg, Pennsylvania. The average flow of the river at this pcint is 34,000 cfst. The sits consists of an 314 acre tract on Three Mile Island and setaral smaller adjacent islands. General climatic conditions are characteri u d by a mild centinental-type climate with little severe weather. Agri giture is the largest land us tge a n the area (48'3), with the emphasis en 70ud ry, dairy cattle and field crops (S). More specific information en the demography, meteorology and land use characteristics of local area may be found in the Environmental Repert (9) Environmental Statement (10), Final Safety Analysis Report for DfI-2 (11) the Inv rennental Report Supplement II (12), and the FS FE5 (Nureg 0112) (21). O() 4or .L v ( 3

k!h ";PTELEDYNE ISOTOPES PROGPMt In the operaticnal phase of the REMP, radioanalytical data are collected for comparison to that generated in the preoperational phase. Differences between these two periods are compared to determine whether any station effects exist based en the magnitude and fluctuations of radioacti-vity levels determined in the preoperational phase. Cbiecti.es The objectives of the operaticnal radiological environmental program are: 1. To fulfill the cbligations of the Radiologicat Surveillance Environ-mental sections of the Environmental Technical Specifications for TMi-1 and the Preoperational Program for TMI-2. 2. To dete rmine whether any statistically significant increase cccurs in 'he ccncentraticn of radienuclides in critical pathways. 3. To detect any buildup of long-lived radionuclides in the environment. a. Tc detect ans change in ambient garna radiation icvels. 5. To verifv that radioactive releases are within allcwable limits and that TMI-1 coeraticas have no detrimental effects en the health and safety of the public or on the environment This report provides information for :ne $btrcpolitan E !ison Company, General Public Utilities, regulatory agencies, and the pubi:e record toward these cbjecti"es. Design In order ta meet the stated cbjectives, an appropriate opera-tional RENP was dev31cped for Metropolitan Ediscn Company, 3amples for the cperational REMP were taken frca the aquatic, atmospheric, and terres-trial environments. Samples of various media were selected to cbtain data for the evaluation of the radiation Jose to man and important organisms. S ac.p le t>7es were based en (1) established critical pathways f ar the trans-fer of radionuclides through the environment to man, and (:) experience gained during the preoperational and initial operational phases. Sampling 1ccations were determined frca site meteorology, Susquehanna River h d f rolcgy, local dencgraphy and land uses. Sampling locations were diviaed int-tae classes--indicator and control. !nc2ca:cr stations ar- :hese which are expected :a manifest station effects, if any 2x13:; ccntrol samples are collected at locations t si-4 O@ ()\\1 JL u 4

TTELEDYNE ISOTOPES which are believed to be unaffected by station operations. Fluctuations in the levels of radicnuclides and direct radiation at indicator stations are evaluated with respect to analogcus fluctuations at control staticas, which are unrelated to station operation. Indicator statica data are also evaluated relative to background characteristics established prior to sta-tion operation. Additional samples beyond those required by the Environ-mental Technical Specifications were collected and analy:ed. They are listed as Metropolitan Edison Company management audit samples in the data tables (Appendix B). The analysis of samples and the analytical data generated during the program were routinely evaluated by the RMC project leader and after September 1, 1977 by the TI project leader who is the liaison with Metro-politan Edison Company personnel. Further review of REMP design and analytical data was performed by RMC and is now performed by TI and the Metropolitan Edison Company professional staff in light of current regulatory trends and operating experience. The analtyical procedures and quali;" control methods utili:ed by RMC are detailed in Reference 13. The ana-lytical procedures and quality control methods utili:ed by TI are detailed in References 14 and 15. Table 1 summarizes information en the Three Mile Island Nuclear Station operaticnal PEMP. Appendix A explains the sample coding system which specifies sample type and relative locations at a glance. Table A-1 gives the pertinent information en individual sampling locations, while Maps A-1, 2, and 3 shcw their geographic locations. Exceptions The operation REMP was conducted in accordance with the Envircn-mental Technical Specifications for TMI-1 (1) and the Precperational Pro-gram far TMI-2. Deviations from the program as described in Table 1 of these specifications occurred during this period. Lecause aquat:c plants are very scarce in the vicinity of TMINS, none were available for sampling during the 1976 and 1977 reporting periods. Pump cutages resulted in the loss of 14 air particulate samples and S air iodine samples at varicus staticas. Samples icst included S air particulates and 4 air iodines by water damage and.' air particulate and 1 air iodine in transit. Air sample recovery rate was ;reater than 94i and air iodine greater than 9:S. 30~199

9 TTELEDYNE ISOTOPES RESULTS AND DISCUSSION The averages and ranges of analytical results are summari:ed in Table 2 and 3. Table 2 is a sur. mary of gross beta, H-3, Sr-39, Sr-90, 1-131 and gamma spectrometric results for various samples. Table 3 is a summary of ambient radiatica levels as melsured by thermoluminscent dosimeters. Results for each type of sample were grouped according to the analysis per-formed. Means and standard deviatiens of these results were calculated when applicable. These standard deviations represent sample population variability rather than analytical variability. For this c11culation, all results belcw the MDL were considered te be at the MDI., The data for individual samples are preserted in tabular form in Appendix B, Table B-1 throuZh B-19. Within the data t2bles a 95'. (120) confidence interval is supplied. These intervals represent the range of values into which 95's of repeated analyses of the sample would fall. All results occurring at or below the relevant minimum detectable level were reported as being "less than" the MDL value. Aquatic Environment Surface Water Monthly surface water samples were collected at 6 locations en the dates shewn in Table B-1. Weekly grab samples from Stations IC3, 9A2, and 931 sere taken and composited acnthly. Samples from 5:ations 5El and ISF1 were composited manually and sam,les from Station 7G1 were automatically conposited for the monthly analyses. Each sample was analy.ed for gamma emitting nuclides and quarterly composites from each statien were analy:ed for H-3. Samples fica SEl, 15F1, and 7G1 (drinking water treatment facili-ties) were aise analy ed for "r-S9 and Sr-90. The results therefrom are included in this report. Results of H-3 analyses are presented in Table 3-2 and Figure 1. Concentrations of H-3 were observed to be slightly higher than background during the third quarter at two indicator stations 0.3 miles south of site below Discharge Pipe and 1.5 miles south of site above York Haven Dam. These concentrations returned to background levels in the following quarter camposite at all downstreaa 1ccations. The dose impi. cations of these H-3 levels are discussed under " Assessment of Impact." Results ot' analysis of surface water for Sr-39 and Sr-90 are presented in Table 3-3. These analyses wcre made en untreated water from the Brunner Is.Ind water treatment facility (SE1), the Steelten municipal water works (15F1) and the Calumbia water treatment plant (7G1). Sr-90 concentrati ns were less than 1.0 pCi/1 in all of the samples ana.v:ed, but all Sr-39 concentrations were celow the minimum detectable a. 3C t'i v i t) 6 ()g) - r1(in t- \\1 md U U

-II.IROPel.! TAN IDISON COMPANY TAblL I SYNOPSIS OF litt opt RAllONA1. RADIOlJMICAL !.NVIRONMLfeTAL MON 110 RING PROGRAM FOH TMINS JANUARY I 111Rotk;il t'l CI HtiER 31, 1977 SAffrtL COI I.l CT I ON SAMPLING H1't.R OF ANALYSIS N11MbiR OF Tilt Iktt[UtNCY I.OCATIONS SAM 4 tS Coll LCTI D TYPE F RI OUI.NCY SAMPflS ANA?7SID burface W'teri MC 6 72 Il-1 QC 24 Dr inking 's r Gamm.a MC 72 $r-89 (g 12 Sr-90 QC 12 F i sts SA 2 8 Sr-89 SA a Sr-90 SA 8 Canna SA 8

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6 Sr-89 SA 6 Sr-90 SA 6 Gamma SA 6 Air Particulates W 9* 411 lie t a W 4II ~' Ganima MG 24 Air todane W 213 I-131 W 213 Precipitetton M 4 48 11-3 QC l t, Ite t a M 48 Sr-M9 SA 3 $r-90 S., a Gamma QC 16 e-Milk M S 45 1-131 M 45 V. m Sr-89 QC 35 W Pr-90 nC 15 l [] Gseen Lea fy A 4 4 Ga nuaa A 4 g Ve g e t atil e s Isust5 A 2 4 Gamma A 4 3 heet~ end Game A 3 3 Gamma A Soll TA (1 years) 12 24 N Sr 0 A 24

• l 78 Ganana Dose Q

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• station 8SI was discontinued on 03-02-77 a f ter collect ion of nine samples.

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h h h h h h h h t t t t t t t t t n n n n n n n n n e o o o o o o o o d m m m m m m m m-n e S_ d d d d d d d d p T r r r r r r r r e I a a a a a a a a d N d d d d d d d d n U n n n n n n n n i a a a a a a a a t t t t t t t t 4 s s s s s s s s / / / / / / / / f s s s s m m s m o e e e e e e e e r r r r r r r r t m m m m. m m m c uo daer e a m 8 5 9 6 4 4 5 I h E E t Ci l 2 1 1 1 l 2 f A s + o R E2 2 2 8 4 8 4 1 7 e VAi 6 6 5 8 5 5 5 6 g areva e h t n S o N I d N I l 8 4 3 0 4 2 9 4 e s m 0. 0 a T t 0 0 0 l 1 b A M 7 + + + + S 7 8 2 2 5 1 5 2 7 s n i f 9 E 1 M 7 8 7 9 7 6 6 8 Y 7 NA I 7 M P I. 1 0 M R 3 3 O U C S R 2 A E 1 L 1 1 f 1 O M M S I hg I 3 N C E E I D t 3 3 2 8 7 2 4 6 u D O I 0 r m o A A I G t 0 1. 0, 0 0, o. 0 L T i h N B A 1 t + + + t T l i 8 5 5 7 8 1 7 4 I T D l I 7 N A o L R l M 4 4 4 7 4 3 5 7 k O l 8 P T T 2 O C R L I 9 l R 0 L I Y M D R f A F U o O N s A Y J G 6 7 7 7 7 7 7 7 6 7 7 7 7 / 7 7 r R ND 7 7 7 7 7 7 7 7 7 1 7 7 7 7 7 7 e 1 I. O t A 9 o0 0 o9 9 o8 5 o0 9 o0 0 o9 9 o8 8 o0 e t l I 2 t 3 3 t 2 2 3 m P R l M1 t 2 2 t 3 2 t 1 3 t 2 2 t 2 2 t i m 2 2 S 1 6 6 9 9 2 s, S A0 2 3 3 0 6 9 9 1 1 U 0 0 0 0 0 1 J: S 1 0 0 0 0 0 0 D L T e h t ro F f O S. l t Ri L P 4 4 s s t M 2 5 y e a m i A 3t S d ng. N r 4 is e 0 s t 3 a e s m n ri s o os h r o n i o t t rd a n e i e c e o e t a o. t m ah t a a mt c 1 ok R d g L r r in e o e a s o s l l s t o o a o i I rD icd t 2 s a a I' tnD d D S h s l t ec l h S C 1' InI 1 a A o1 T O (' ^. _

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TPTELEENNE ISOTOPES DISCUSSION (continued) Results of the analyses of surface water samples for gamma emitters are presented in Table B-4. No gamma emitters were detected above the MDL values listed in Table B-19 or B-20, " Typical MDLs for Gamma Spectrcmetry." Fish Fish samples were collected at 2 locations each in July and October of this reporting period. Adult fish were filleted to obtain samples weighing about 2 kg each. These were separated into classes of bottom feeder versus predator-game species. Gamma spectrometry and Sr-39 and Sr-90 analyses were performed on subdivided fish samples. The results of these analyses are given in Table B-5. Sr-89 was not detected in any of the samples. Sr-90 was detected in 5 of the S samples with the highest value of 27 pCi/kg detec-ted '. the downstream samples (981). The gamma spectrometric results show naiaral K-40 present in all fish samples, as expected. Cs-137 was detected in 5 of 5 samples. No other gamma emitters were detected. Typical MDLs by thi USthod are listed in Table B-19. Since the Sr-90 and Cs-137 were detec-te- :.n the upstream as well as the downstream samples, neither should be attributed to station operation. 5cdiment Three sediment samples were taken in July and again in October and all samples were analy:ed for Sr-39 and '$r-90 and gamma emitting m.clides. Strontium in sediment results are given in Table 3-6. Sr-89 was detected in 2 samples while Sr-90 was detected in all of the samples. In-dicator ind control samples shcwed similar levels of both nuclides. The results of the gamma analyses are also given in Table B-6. The naturally c,ccurring radionuclides (K-40, Ra-226, and Th-232) were found in all 6 sediment samples. The gamma emitters 2r-95/Nb-95, Ru-103, Cs-134, Ce-141, and Ce-144 were detected at Station 982 in October at concentrations significantly higher than those at the control station. A nonroutine report was submitted on this sample. The elevated levels of these nuclides were probably not the result of TMINS operations except possibly for Cs-134. The; dose implications of these results are discussed under " Assessment for Impact." Other gamma emitters detected at Icw levels were Be-7; Co-53, and Cs-137 Atmospheric Environment The atmospheric environment around TMINS was examined by ana-ly:ing air particulate filters, charcoal cartridges, and precipitation s1=ples. Air particulate samples were collected at 9 locations and at 3 12 50 2C6

";PTELECNNE LSOTOPES locations after 03-02-77 with low volume air samplers using Hollingsworth and Voss HV-70 gau:e backed filters. At 4 of these locations, air icdine samples were collected on Cesco "B" charcoal (flow-through) cartridges connected in series following the air particulate filters. Air volumes were measured with dry gas meters and recorded. Both air particulate and iodine staples were collected weekly. Precipitation was collected by using a 12-inch diameter funnel draining into a 5 gallon polyethylene bottle. The accumulated samples were collected and composited for monthly analysis. Air Particulates All air particulate samples were analyted weekly for gross beta activity and monthly composites of all inuicator 3r.d of all control samples were examined for gam.ra emitting nuclides. Results of gross beta analysir are listed in Table 3-7 Gross concentration of beta emitters declined from the peak of greater than 0.20 pCi/cu.

m. in September 1976 and attributed to the 1976 Chinese nuclear tests to less than 0.050 pCi/cu. n-in December 1976 and January through March of 1977, By April of 1977 the gross beta activity increased sharply to greater than 0.23 pCi/cu. m. due to the spring worldwide fallout from the 1975 atmosph,eric tests and continued at elevated levels through November of 1977, In December 1977 the average gross beta decreased to approximately 0.050 pCi/cu. m.

The ratio of gross beta activity at the indicator and control stations remained the same during 1977 (See Figure 2) indicating that the observed perturbations were external and not attributable to the operations of TMINS. The gamma spectrcmetric results on monthly composites of air par-ticulate filters are presented in Table B-3. Naturally occurring Be-7 at the background stations remained in the 0.045 - 0.129 pCi/cu. m. range for the monthly collections during 1977 The corresponding indicator stations Se ~ activities were 1cwer by factors of up to two ecmpared to the background stations. However, the fission products frcm the probable fallout nuclides ~r-95, Ru-103, Ru-106, 50-125, Cs-137, Ce-141, and Ce-144 from the 1976 Chinese nuclear test increased in March to peak values in May through October 1977. The same lower activity at the indicator stations by a factor of up to two ccmpared to the control statiens was observed for these fission products. The additienal acti'.it. from the September 17, 197~ nuclear test by the Peoples Republic of China on the previous year's f211 cut of fissicn products was minimal. This is indicated by ecmnaring the gamma spectrum results in Table 3-3 for the months prior to and after September 19~~ 50107 13

TTELEDYNE ISOTOPES Air Iodine Gaseous icdine was collected on charcoal cartridges at 4 locations. The resulting samples were analy:ed weekly for I-131 and the results are listed in Table B-9. All results were less than the respective MDLs. Precipitation Monthly precipitation samples were analy:cd for gross beta acti-vity and for H-3 and gamma emitting nuclides, respectively, in quarterly ccaposites from each staticn. Concentrations of Sr-89 and Sr-91 were de-termined in semiannual composites from each station. The results of gross beta activity measurements in precipitation samples are presented in Tab le B-10. As with other atmospheric media, gross beta activity increased from April through October 197~ frcm the 1976 Chinese nuclear terts. No significant differences in gross beta activity were detected between the indicator and control stations. The results of analyses of quarter 1< composites of precipitation for H-3 and gamma emitting nuclides are presented in Table B-11. Tritium concentrations average 208 pCi/1. The g1mma emitting nuclides detected in precipitation were Be ?, Zr-95, and Ru-103. The :r-95 and Ru-103 were also in air particulates and were only detected after the 19~6 Chinese test. Typlical MDLs for gamma spectrometric analyses of precipitation are listed in Tables B-19 and B-20. Semiannual composites of precipitation samples from each station were analy:ed for Sr-89 and Sr-90 and the results are presented in Table B-12. Of the 3 samples anah :ed, all contained detectable levels of Sr-39 and Sr-90. All strentium activities were cbserved at both indicator and centrol locations and occurred probably from the 1977 Chinese nuclear test. Terrestrial Environment The terrestrial environment around TMINS was examined by ana-ly:ing samples of milk frca 5 locations on a monthly basis and green leafy vegetables on an annual basis. Two gallon milk samples were collected and shipped fresh to the contractor. Each sample.,as analyzed for I-131 and quarterly couposites frca each station were analyzed for Sr-39 and Sr-90. Green leafy vegetables (cacbage and broccoli) and fruits (apples and peaches), were cellected in July and August at e stations. Each sample was analyzed for gamma enitters. The results of I-131 analyses of milk are presented in Table 3-13. Ncne of the 31 milk samples analy ed before September showed detectable levels of I-131. The September and Octocer samples had vetectable ccncen-traticas of I-131 in 6 and 5 samples, respectively, due to the Chinese 1977 r>C> '+7 0bb 12

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TTEl.EDYNE ISOTOPES test. Staticn to station comparisons of milk results are not necesseri'y valid since many herd specific factors centrol this pathway, Based on ob-servations at other nuclear facilities in the northeast, these concentra-tiens are tne result of Chinese 1977 weapons test fallout. Concentrations of Sr-89 and Sr-90 in quarterly composites of milk samples are listed in Table B-14 Of the 15 samples analyzed, Sr-89 was detected in 4 while Sr-90 was detected in 14. Results from indicator stations were similar to those from the control station and all results were similar to preopera-tional levels indicating no contribution due to the operations of TMINS. The results of gamma spectrometric analysis of green leafy <ege-tables and fruit samples (Table B-15) showed detectable levcis of natural K-40 in all cases and of Be-7 in one cabbage and one broccoli sample. In addition, ~r-95/Nb-95 was detected in two cabbages and the broccoli samples. The 'r-95/Nb-95 activity is attributed to the 1976 Chinese nuclear test. The results or gamma snectromet ric analysis of two beef and ene deer flesh samples (Table B-17) showed detectable levels of natural K-40 in all cases and a detectable level of Cs-137 is probably due to past at-mospheric nuclear weapon tests and the diet of deer. Direct Radiation Tha ambient radiation levels in the area of Three Mile Island Nuclear Staticn were determined with energy compersated calcium sulf te (TM) thermoluminescent dosimeters for the first three urters of 1977 On September 30, 1977 energy ccmpensated calcium sulfate (DY) t he rmo lumi-nescent dosimeters were installed as replacements for the fourth quarter of 1977 A total of 20 quarterly TLD packets of 4 TLD sections each were placed at 2] locations around TMINS. The results of the TLD measurements are presented in Table B-16 and are summarized in Table 3. All TLD results presented in this report have been normali:ed to a standard month (30.4) days) to eliminate the differences in exposure periods. Presented on Figure 3 is the plot cf the mrem / standard month for the control and indicator locations. The average of the fourth quarter of 1977 radiation levels for the contrcl locations was 30*3 higher than for the third quarter-The average radiation level for the indicator locations increased by the same proportion. Fallout frca the September 17, 1977 Chinese nuclear test may have caused the increase in the fourth quarter radiation levels. t*)I) - rpl,.nU lo aw

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9 9 TTELEDYNE ISOTOPES ASSESSMENT OF IMPACT The gaseous and liquid effluent streams from TMI-1 were continuously monitored and/or sampled for the presence of radioactive materials by Metro-politan Edison Company. The REMP was designed and conducted in a manner to permit identification of the radionuclides actually released from the sta- \\ tion. Of the radioactive materials released from TMI-1 to the environment, only H-3 in surface water and various gamma emitters in sediment showed a poten;ial contribution from TMI-1. Those samples are listed in Table 4 and we:e collected from downstream station s 9A2 and 9Bl. Thus the only pathways for potential exposure of individuals or of a segment of population to radioactive materials from station operation are from consumption of river water or from shoreline deposits. Untreated river water is monitored as part of the TMINS REMP at 2 locations (Brunner Island, 8El, and Columbia, 7G1) in the downstream vicinity which use treated river water continuously for human consumption. At no time during the reporting period did H-3 levels at these stations differ statistically frca those at the upstream station. It can then be concluded that these H-3 levels did not result in a significant dose to man. A variety of fission products were detected in one downstream sediment sample (Station 9B2) during October at icw concentraticns, but greater than the control location. The most conservative approach would be to assume (not valid, since some of the nuclides are fren atmospheric nuclear tests) that all of these radienuclides were of T'11NS origin. Based on the ecuations used in USSRC regulatorv guide 1.109 (10) a potential dose of 0.45 mrem was calculated. This calculaticn is for a hypothetical ?.axi-mum teenager spending 67 hours (the suggested ar.nual usage) on ground contaminated to the same degree as the sediment and assuming a surface density of 240 kg/sq.

m. at 5 cm depth. These insignificant doses are the maxima which could be attributed to the radionuclides released to the Susquehanna River by T"I-1.

13 [3()~$3j[k',

bil?llt0!'01.ITAN liDISON COh!PANY TAlit.l; 4 1977 !!nvironmental Sainple l>at a Which llesulted in Special Nonroutine Iteports to biet tid TYPli 01: SAhlPl.li TYPli STATION NO. SAf fl'I.ING ilATl! ANAL.YSIS IlliSill.T UNITS Ittil'OllT Sur face Water 9A2 .lu l v -Se p t einbe r 11-3 (composi t e) 600+-100 pCi/ liter 4 720+-130 pCi/ liter 9111 bli ll October 1, 1977 1-131 Nonroutine 1111 3.S+-0.3 pCi/ liter Sill 5.6+-0.3 pCi/ liter 7153 31+- 1 pCi/ liter 1 -1C 1 30+- 1 pCi/ liter Y Y 5.8+-0.2 pCi/ liter 2G1 G Flijk 4111 October 79, 1977 1-131 1.2+-0.2 pCi/ liter Nonroutine S til 0.96+-0.20 pCi/ liter 7113 6.8+-0.3 pCi / li t e r 14Cl 2.4+-0.2 pCi / li t e r 2G1 0.74+-0.18 pCi/ liter Sed iinen t 9112 October 25, 1977 13e - 7 3.2+-0.8 pCi/gm dry Nonroutine Co-58 0.09+-0.06 pCi/gm dry 1.icense livent Zr-95 1.3+-0.2** pCi/gm dry report submitted g Itu-103 0.8+-0.l** pCi/gm dry by tiet lid " NF llu-lOh 0.9+-0.4 pCi/gm dry Cs-154 0.83+-0.08** pCi/gm dry Cs-137 1.4+-0.1 pCi/gm dry q }/ Ce-111 1.0+-0.2** pCi/gm tiry f C, Cc - 141 1.6+-0.4 pCi/gm dry C N 9 CJ

TTELEDYNE ISOTOPES CONCLUSIONS The preoperational Radiological Environmental Monitoring Program (REMP) conducted for Metropolitan Edison Company was continued as the op-erational program after TM1-1 initial criticality en June 5,1974 and as a preoperational program for TMI-2. The REMP (from January through Decem-ber 31, 1977 described in this report was conducted according to the En-vironmental Technical specifications for TMISS Unit *1. The objectives of the program were met. Additional sampling and analyses beyond those required by the Technical Specifications were performed as management audit samples. All results therefrom were reviewed by Metropolitan Edison Company to assess all possible environmental pathways. Although other possible dose pathways to man were considered in the environs of the TMINS site, tritium in surface water and fission products in sediment were the only radienuclides of potential TMINS origin detected above background levels with only sediment potentially contribu-ting to dose. The radiation dose to people from ambient gamma radiation, as measured by thermoluminescent dosimeters, averaged 72 mrem / year and showed no evidence of a TMINS contribution during this operational period o f TMI-1. The radiation dose to people in the TMINS environs is compared with the exposure from other artificial and natural scurces in the follow-ing table: Source of Exposure Annual Dose in mren /vear Medical 72 (19) Ambient Gamma (TLD) 72 Radionuclides in body (primarily K-40) 13 (20) Normal Global fallout 4 (20) Fission Products in Sedimen: 0.45* 1-131 in Milk 36 ** (Chinese Fallout) The possible contribution of TMINS is insignificant in comparison with just one pathway associated with the Chinese fallout incident. Even though the potential TMI-1 contribution to population exposure is very small (approximately 0.2% of that from other sources), TMINS has a continuing pro-gram to improve operating techniques and to maintain equipment directed toward reducing releases of radioactive materials to the environment. It can be concluded that operation of TMI-1 did act significantly alter the radiological characteristics of the TMINS environs. The radionuclides and radiation levels observed were principall;. due to natural radicactivity and gicbal fallout. Shoreline exposure to a reenage (maxi.num individual) calculated for an ex-posure of 67 hours / year and surface density of 240 kg/sq.m. at 5 cm depth. Dose to an infants thyroid (maximum individual) calculated for 3 months exposure at 31 pCi/ liter the maximum I-131 concentratica in the milk samples. ' O 50 214

~ TTELEDYNE ISOTOPES REFERENCES (1) Metropolitan Edisen Ccmpany. "Three Mile Island Nuclear Statien - Technical Specifications." Appendix B. DPR 50, 1974 (2) Radiation Management Corporation. "Three Mile Island Nuclear Genera-ting Station - Preoperational Radiological Environmental Monitoring Program." RMC TR-75-17, 1975. (3) Radiation Management Corporation. "Three Mile Island Nuclear Statica - Radiological Environmental Monitoring Program - First Operational Period." RMC-TR-75-02, 1975. (4) Radiation Management Corporation. "Three Mile Island Nuclear Statien - 1975 Semiannual Report." RMC-TR-75-02, 1975. (5) Radiation Management Corporation. " Radiological Envircnmental Moni-toring Report for the Three Miles Island Nuclear Statien 1975 Semiannual Report II, July 1 through December 31." RMC-TR-76-01, February 1976. (6) Radiation Management Corporation. " Radiological Environnental Mcni-toring Reper for the Three Mile Island Nuclear Staticn 1976 Annual Report, January 1 through December 31." RMC-TR-77-01. (7) United States Department of the Interior-Geological Survey. " Water Resources Data for Pennsylvania, Part 1," 1973. (3) Radiation Management Corporation. "Three Mile Island Nuclear Genera-ting Station - Agricultural Land Use Survey RMC-TR-75-1. (9) Metropolitan Edison Company. "Envircnmental Report, Operating License Stage - Three Mile Island Nuclear Station Unit 1 and Unit 2," 1971. (10) United States Atcmic Energy Commission. " Final Environmental State-ment - Three Mile Island Nuclear Generating Station Units 1 and 2." DCCKET Nos. 50-2S9 and 50-320, 1972. (11) Metropolitan Edison Ccepany, Jersey Central Power and Light Company, Fennsylvania Electric Ccmpany. " Final Safety Analysis Report - Three Mile Island Nuclear Station Unit 2." Docket No. 53-320, 1974. (12) Metropolitan Edison Company, Jersey Central Pcwer and Light Ccep any, Pennsylvania Electric Company. " Environmental Report Supplement II, Three Mile Island Nuclear Station." Docket No. 50-320, February 1975. (13) Radiatica Management Co rporation. " Analytical and quality Centrol Program." RMC-TM-75-3, 1975. (la) Teledyne Isotopes. " Environmental Radiatica Analysis Quality Centrol '!anua l. " INL-0032-361, 1975. '1 i - ry 4 p), L) As a i

TTELEDYNE ISOTOPES (15) Teledyne Isotopes. " Procedures and Quality Assurance Handbcok." IWL-0032-365, 1975. (16) U.S. E7vircnmental Protectica Agency. " Radiological Quality of the Environment in the United States, 1977 " EPA 520/1-77-009, September 1977. (17) Donald T. Oakley. " Natural Radiation Exposure in the United States." U.S. Environmental Protection Agency, CRF/SID 72-1, June 1972. (18) United States Nuclear Regulatory Cor. mission. Regulatory Guide 1.109, " Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I," Cctober 1377. (19)

5. E. Thompson, C. A.

Burton, D. J. Quinn, and T. C. Ng. " Concentration Factors of Chemical Elements in Aquatic Organisms." UCRL-50564 (Rev. 1) October 1972. (20) "The Effects en Populations of Exposure to Low Levels of Ioni:ing Radia-tion" (BEIR REPCRT). Naticnal Academy of Sciences, 1972. (21) Final Supplement to the Final Environmental Statement related to operatien of TMINS, Unit 2, Occket 3-20, 1976. l5(b ~ '5bN(5 s

9 TTELEDYNE ISOTOPES APPENDIX A 50'217 3

TTELEEh'NE ISOTOPES APPENDIX A Sampling Locations Samole Identification Metropolitan Edison identifies samples by a three-part code. The first two letters are the power station identification code, in this case TM. The next one to three letters are for the media sampled. Green Leafy Vegetables AI Air Iodine FPL = = Immersion Dose (TLD) AP Air Particulates ID = = Milk Fish M AQF = = Precipitation AQP Aquatic Plants RW = = Surface Water Sediment SW AQS = Fodder Crops Soil V E = = Fruit FPF = The last four symbols are a location code based on direction and distance from the site. Of the last four symbols, the first two rep-resent eaca of the sixteen angular sectors of 22S degrees centered about the reactor site. Sector cne is divided evenly by the north axic a he other sectors are numbered in a clockwise direction; i.e., 2 = NNE, NE, 4 = ENE, 5 = E, etc. The next digit is a letter which represents the radial distance frca the plant: 4-5 miles off-site On-site location E S = = 0-1 miles off-site F 5-10 miles off-site A = = 10 20 miles off-site 1-2 miles off-site G 3 = = L.T. 20 miles off-site 2-3 miles off-site H C = = 3 4 miles off-site D = The last number is the station numerical designation within each sector and :one; e.g., 1, 2, The locatien portions of these ccdes (i.e. 151, 3A1, etc.) are shown in the attached table along with more detailed information and a map corrdinate number used to designate the individual samples in the analytical results tables, Appendix B. S0 213 3

TAllt li A-1 .;ADIGIDGICAI. IINVIROtBIENTAl. MONITOk!NG IWOGRAM SAMPl.ING 1.OCATIONS IDCATION Fl\\P CODli NO. DliSCRIPTION* IS2 2 0.4 miles N of site, N. Weather Station 2S2 3 0.7 miles NNii of site on light pole in middle of North Bridge 4S2 5 0.3 miles iN!! of site on top of dike, East Fence SS3 6 0.2 miles li of site on top of dike, tia s t Fence 9S2 8 0.4 miles S of site at South licach of Three Mile Islas.d IISI 9 0.1 miles SW of site, west of Mechanical Draft Towers on dike 14S2 10 0.4 miles WNW of site at Shelly's Island picnic area j 16S1 11 0.2 miles NNW of site at gate in fence on west sicle of Three Mile Island IA2 12 0.7 miles N of site at north tip of Three Mile Island 4Al 13 0.5 mi les I:Nii of si te on I.aurel Rd., Met. Ik!. pole 8668-01, LAl 14 0.4 miles li of si te on nort h side of Observation Center Building 9A2 15 0.5 miles S of site below Discharge Pipe llAl 10 0.2 miles SW of site off Discharge Pipe 16Al 17 0.4 miles NNW of site on Kohr Island 4111 18 1.1 miles 1:N!! o f s i t e, west of Gringrich Road Stil 19 1.0 mile li of si te on Peck Road 7113 20 1.6 miles Sli of on east side of Conewago Creek 9111 21 1.5 miles S of site, above York llaven Dam 9112 22 1.4 miles S of site, north of York llaven Dam VO f $b NO

TABl.li A-1 (CONT.) RAD 101.0GICAl. IiNVIRONMENTAL MONITORING P110 GRAM SAMPl.ING 1.0 CAT 10NS 1.OCAT10N FL\\P CODl! NO. DESCRIPTION

• O 10111 23 1.1 miles SSW of site on south beach of Shelly's Island 1 2111 24 1.6 miles WSW of site adjacent to Fishing Creek 16111 25 1.1 miles NNW of site below Fall Island ICI 26 2.6 miles N of site at Middletown Substation IC3 27 2.3 miles N of site at Swatara Creek 3Cl 28 2.3 miles SSE of site 14Cl 29 2.7 miles WNW of site near intersection of Routes 262 and 392

'd Hlil 30 4.1 miles SSE of site at Ilrunner Island IFl 31 6 miles N of site at llummelstown Substation on Fiddler's Fibow Road 51 1 32 9 miles li of si te on East Ridge and Greentree Roads 5F2 33 5.8 miles li of site at Masonic Ilame 71:1 34 9 miles Sli of site at Drager Farm off lingle's Tollgate lload 15F1 35 8.7 miles NW of site at Steelton.ktunicipal Water Works 2G1 36 2 miles NNii of flershey on Rt. 39 llummelstown 4G1 37 10 miles liNii of site at I.a w n - Met. lid. Pole #J 1813 7M 7GI 38 15 miles Sli of site at Coltunbia Water Treatment Plant ] 9GI 39 13 miles S of site in Met. lid. York Load Dispatch Station y) 15GI 40 15 miles NW of site at West !'ai rview Substation NM All distances are measured from a point that is midway between the Reactor fluildi ngs of Uni ts One and Two

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9

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O TTELEDYNE ISOTOPES APPENDIX B 31 50 225

9 TTELEDYNE ISOTOPES APPENDIX B Data Tables Appendix B is a presentation of the results of the TMINS Radiological Envircnmental Monitcring Program. TABLE NUMBER TITLE PAGE A,QUATIJ ENVIRONMENT B-1 Sampling Periods for Surface Water Samples, 1977 33 B-2 Concentrations of Tritium in Surface Water, 1977 35 B-3 Concentrations of Sr-89 and Sr-90 in Untreated Drinking 36 hater, 1977 B-4 Concentrations of Gamma Emitters in Surface Water, 1977 37 B-5 Concentrations of Sr-89 and Sr-90 and Gamma Emitters 39 in Fish, 1977 d-6 Concentrations of Sr-89 and Sr-90 and Gamma Emitters 40 in Sediment, 1977 ATMOSPHERIC ENVIRONMENT B-7 Concentrations of Beta Emitters in Air Particulates, 41 1977 B-S Concentrations of Gamma Emitters in Air Particulates, 43 1977 B-9 Concentrations of I-13' in Filtered Air, 1977 45 B-10 Concentrations of Beta Emitters in Precipitation, 1977 47 B-11 Concentrations of Tritium and Gamma Emitters in Preci-48 pitation, 1977 B-12 Concentrations of Sr-39 and Sr-90 in Precipitation, 1977 49 TERRESTRIAL ENVIRCNMENT B-13 Concentrations of I-131 in Milk, 1977 30 3-14 Concentrations of Sr-39 and Sr-90 in Milk, 1977 52 a0_ ris7{3 L +6 JJ

9 7TELEDYNE ISOTOPES TABLE NUMBER TITLE PAGE B-15 Ccncentrations >f Gamma Emitters in Green Leafy 53 Vegetables and Fruits, 1977 B-16 Direct Radiation - TLD Dose Rate, 1977 54 B-17 Concentrations of Gamm2 Emitters in Beef and Game, 1977 55 B-18 Concentrations of Sr-90 and Gamma Emitters in Soil, 1977 56 MINIMUM DETECTABLE LEVP' S B-19 Typical MDLs for G-- pectrometry, 1977 57 Teledyne Isote m 5; s .ry, 1977 38 B-20 Typical MDL f ar Radiation.'.

p..

B-21 Distribution c.' M11, 12 ain Five Miles of TMINS, 1977 59 50~227

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htETRut'01.! TAN EDISON CGII'ANY TAlli.E 11-1 SAh!PLING PEll10D FOR SilRFACE WATliR SAhlPLES (JULY-DECLft!!!!R 1977) STATION No. JULY AllGtlST S!!PTDtBLR' OCTOBER NOVEhtBER DECEFfBER h 'll!- SW-9 A 2 07-06-77 08-03-77 04-07-77 10-05-77 11-02-77 12-21-77 to to to to to and 07-27-77 08-31-77 09-28-77 10-26-77 11-30-77 12-28-77 'll!-SW-9111 07-06-77 08-03-77 09-07-77 10-05-77 11-02-77 12-21-77 to to to to to and 07-27-77 08-31-77 09-28-77 10-26-77 11-30-77 12-28-77 '111-SW - l C 3 *

• 07-06,7 08-03-77 09-07-77 10-05-77 11-02-77 12-14-77 o,

to to to to to 12-21-77 07-27-77 08-31-77 09-28-77 10-26-77 11-30-77 12-21-77 TFI-SW-81!1 *

• 06-29-77 07-30 77 08 28-77 09-28-77 10-29-77 11-30-77 to to to to to to 07-30-77 08-23-77 09-28-77 10-29-77 11-30-77 12-28-77

'111-SW - 7G 1 07-06-77 08-03-77 09-07-77 10-05-77 10-29-77 11-09-77 12-14-77 to to to to to,,, to to 07-27-77 08-31-77 09.?8-77 10-26-77 11-30-77 11-24-77 12-21-/7 'lti-SW-15 F 1 07-06-77 08-03-77 08_23-77 09-28-77 10-26-77 11-30-77 to to to to to to 07-27-77 08-31-77 09-23-77 10-29-77 11-30-77 12-28-77 htanagement audit samples. Pump not operating. C N Cc

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MiiTitOP01.lTAN I!DISON C0f1PANY TAllt.E 11-3 CONClifflilATIONS OF SR-89 AND Sit-90 IN llNTilliATl!D DRINKING WATER Results i n !!n i t s o f pC i / t. 1 2 signa STATION NO. STAltT DATli STOP DATI! SR-89 SR-90 TM - S'.. - 81i l

• 12-29-76 03-31-77

<0.7 <0.5 03-31-77 06-29-77 <1.3 <0.4 07-06-77 09-28-77 <l.3 <0.4 09-2S-77 12-28-77 1.1+-1.0 <0.2 'IT t -SW - I S I: 1 01-26-77 03-30-77 <0.7 <0.5 04-27-77 06-29-77 <l.1 <0.4 07-06-77 09-28-77 <3.0 0.6 +-0.5 10-05-77 12-28-77 <1.2 0.4 +-0.2 TM-SW-7Gl 01-05-77 03-30-77 <0.8 <0.6 04-06-77 06-29-77 <l.3 0.3 +-0.3 07-06-77 09-28-77 <2.8 0.29+-0.03 10-05-77 12-21-77 <l.7 0.3 +-0.2 ttanagement audit sa:np l e. g C ?; C.: M

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HETROP01RTAN EDISON COMPANY TABl.E B-7 CONCENTRATIONS OF BETA INITil RS IN AIR PARTICulATES 1977 Results in Units of 10~ pCi/m 1 2 sigma 9 START STOP DAll DATL 1)l-A P-IS2 TM-AP-BSl* 1N-AP-5Al TH-AP-12B1 TH-AP-ICI TM-AP-8Cl TH-AP-7F1 TH-AP-9CI TH-AP-15G1 AVERAGE 12 29-76 01-05-77 5 31.- 6 29+- 5 39.- 6 32 - 6 34*- 6** 24+- 5 39+- 5 40+- 7 30+-22 12+- 4 53+- 6 31+- 5 32+-35 01-03-77 01-12-77 45.- 7 42 - 6 23*- 5 47.- 6 be-4 01-12-77 01-20-77 43.- 6 19.- 4 9.- 4 21.- 5 8*- 4 23*- 5 42+ 6 12+- 3 22+- 5 22.-26 01-20-77 01-26 77 16.- 5 24.- 6 6+- 5 18 - 5 55 28+- 8 13.- 5 21*- 5 17+- 5 17 -16 01-26-77 02-02-77 24.- 5 24+- 5 30.- 5 29+- 6 28*- 6 30+- 7 10+- 4 16+- 4 28.- 5 24 -14 02-02-77 02-09-77 9.- 4 27+- 5 30.- 5 29+- 6 28 - 6 25+- 6 22+* 5 18+- 4 28 - 5 24+-14 02-u9-77 02-17-77 6-4 33+- 5 19.- 4 36. 6 7+- 4 35 - 7 5 25+- 5 34+- 6 22+-27 02-17-77 02-25-77 21.- 6 25+- 5 29.- 6 34.- 6 31+- 7 39+- 9 19+- 5 40+-23 33+- 7 30+-14 02-23-77 01-02-77 41.- 1 13.- 5 48*- 7 48+- 7 34*- 7 40.- 7 36+- 6 42 +-6 28+- 6 39+-14 05-02-66 01-09-77 25*- 5 6+- 3 34*- 6 29+- 5 32+- 5 39+- 7 43+- 6 7+- 3 27+-27 v3-09-77 03-16-77 16.- 7 53+- 7 47.- 7 53+- 7 30*- 5 47+- 7 37+- 6 60+- 6 45+-23 []01-16-77 ob23-77 42.- 6

• 5.-

5 48.- 6 47+- 7 4?+- 6 59*- 7 56+- 7 42+- 6 46+-16 01-23-77 03-29-77 53.- 7 42.- 6 67*- 8 52 - 7 28.- 6 69*- 8 67.- 7 40+- 6 52.-30 01-29 77 04-06-77 53.- 7 65*. 8 84.- ') 77.- 8 42+- 6 81+- 8 84*- 8 42*- 6 67+-34 01-05-77 04-13-77 29.- 6 33.- 9 104.-10 84+- 9 49.- 8 34+- 5 10l+-10 103.-10 74*-53 01-13-77 04-20-77 183*-19 55+- 7 177.-18 191+-19 142+-14 136+-14 185+-19 185+.19 157.-93 15t+-15 113+-11 88+-91 08-20-77 04-27-77 50.- 7 123e-12 34*- 6 79*- 3 39+- 7 04-27-77 05-04-77 122*-12 191.-19 174.-17 189.-19 180+-18 40.- 7 230+-13 202+-20 166*-119 05-06-77 05-11-77 166.-17 331.-33 167+-17 190 -19 197.-20 173.-17 574+-57 161+-15 245 -268 267+-27 20+- 3 12 - 2 186.-19 134 -239 05-11-77 05-In-77 171.-67 6+- 4 274*-27 257 -26 267*-27 152+-15 250+-25 230+-93 225+-23 (~ 05-18-77 05-25-77 f 269+-27 Bh*- 9 261.-26 261+-26 197+-192 61.- 8 243.-24 05-25-77 06-01-77 { 06-01-77 06-05-17 305+-31 286 -29 348+-35 327 -33 32v+-33 328 -33 268*-27 313+-56 1h0*-18 192+-19 174+-17 184*-18 189*-19 173*-38 25) 06-08-77 06-15-77 151*-15 144*-14 210+-21 150+-15 224+-22 223+- 22 212.-21 186+-122 f,) 06-15-77 06-21-77 225*-23 6le-8 {jj 06-22-77 06-29-77 54.- 7 63*- 8 88 -14 136*-19 256+-26 157+-16 98.-10 237.-24 142+-157_ 100*-192 6 HONTil AVERACE = Sampling from station 8S1 was discontinued on 03-02-77. Volume is estimated. Sampling e q u i p n.e n t inoperative.

MLTROPOL!l AN LUISOff COttPANY TtatE B-7 CONCl *rtRATIONS of Bl.TA LMITllll$ IN A184 PAftTICUI.ATES 1977 Results in Units of 10 pCi/m 1 2 sigma SIARI SiOP luli 1 A1L 'l al-AP - I S 2 Ivi-AP-SSl* lit-AP-5 AI 111-A P - 12111 111-AP - l C 1 lit-AP 8Cl 111-AP-7F 1 111-AP-9G1 T11-AP-15G1 AVERAGE 06 9-77 07-06-77 199.-20 255.-26 269.-27 138.-24 210.-21 165.-17 233.-24 149 -32 215.-85 01-00-77 07-1 b77 36*- 9 111.-11 !!6+-12 116*-12 122+-12 121.-12 137 -14 111+-48 115 -29 t>7-15-77 ul-20-77 20s.-21 / 231.-23 192*-19 217.-22 203.-20 190.-19 121 -22 218*-22 210.-29 ul-10 77 07 27-77 17/*-13 159.-16 161.-16 171 -17 109.-11 161.-16 171.-17 154 -16 159e-42 07 7-77 05-05-7/ 31.- 5 147.-15 153.-15 122e-12 151.-15 184*-18 183 -19 157 -16 142.-99 03 o i-7 7 us au-77 79 9 12.- 4 54 9 123.-12 125.-13 12t+-12 134.-13 120*-12 96*-37 03-80 17 us-17-71 90.-11 76.-11 85.-10 70.- 7 86*- 9 73 - 9 101.-10 97*-10 86e-22 163.-17 75.- 8 166.-17 203.-20 194.-19 163.-16 165*-65 'O 17 77 03-24-77 :51.-19 11*e-11 90. 9 127.-13 140+-14 137 -14 13P*-13 129*-45 os-24-/7 05-it-77 ;63.-16 100.-10 44*- 4 11H+-10 120*-10 120+-10 110,-10 101.-53 tm-it-11 09 07-77 15.- 5 130.-10 140 -10 93 -86 09-n1-77 09-14-77 19.- 4 57.- 5 120. 10 84.. 6 100,-10 0- 01-11-77 09-21-77 17. 7 64.- 5 75.- 4 73.- 7 110+-10 75 - 6 89*- 6 85+- 6 81+-28 120*-10 154*-243 09-21-77 J9 26-77 160.-10 160+-10 ll0*-10 410*-190 66*- 5 40.- 3 u9 23-77 10-05-77 410.-10 320 -10 92*- 6 140.-10 300*-10 360.-10 250*-10 290.-10 270.-214 to 05-77 10 12-77 37.- 5 150.-10 140. 10 47.- 5 32.- 4 5.7*-2.0 160.-10 130.-10 94.-!!9 10 12-77 10-19-77 150.-10 12c.-10 140.-10 120.-10 1b0 -10 210.-10 140.-10 140.-10 14be-57 to 19-77 10-2o-77 210.-10 180 -10 170*-10 .350.-10 170.-10 200 -10 140.-10 180*-10 175+-46 10-16-77 11-02-77 34.- 6 100.-10 150.-10 96.- 7 100.-10 100* 20 120e-10 120.-10 luo.-11 !!- ul 77 11-09-77 70 5 82*- 6 78+- 6 Bie-6 78.- 6 81*- 9 Ble-5 C6 - 6 80+- 6 11.u9-77 11-16-77 95.- 6 54.- 5 F6*- 5 71*- 7 83 6 92+- 6 100*-10 42*- 4 78 -42 11 lo.77 11-11-77 98 6 92.- 6 100.-10 91+- 6 97+- 6 92+- 5 92 - 5 110+-10 96 -12 11 - J i ~ ' 11-10-77 69 5 67.- 6 65.- 6 40.- 5 60*- 6 Hb.- ) 63*- 6 ble-5 64 -13 11-10-77 12-07-77 12-07 77 12-14-77 11 5 70.- 6 51 5 67*- 5 35*- 4 32.- 4 69 - % 26.- 3 53.-19 12 11.77 12-21-77 33.- 4 37.- 4 36.- 37*- 4 35 - 4 35 - 4 35.* 4 42*- 5 37.- 2 11 21 77 12 25-77 76.- 6 54*- 5 60+- 5 74*- 5 56+- 5 16.- 2 79.- 5 34*- 4 56+-22 Samplang lion Station BS! was discontinued un 03-02 6 MON 10 AVERAGE. 120.-112 San,pling equipment inopenative. simpic, damage.1 in transkt. YE.8RI.Y AVlRAGE = 109*-145 G- -W $h CA C71 s i

ItL1kOPOLITAN LDISON COttPANY TABLE B-M CONCINIRATIONS OF CAfttA IftllT! RS IN AIR PARTICUI ATES 1977 Results in twi t s of 10' pC6/m t 2 sigma 12-29-77 02-02-77 03-02-77 03-29-77 04-27-77 06-01-77 to to to to to to STA!!ON NO. FJtlCLIDE 02-02-77 01-02-77 01-29-77 04-27-77 06-01-77 06-29-77 1M - A P-fl.n L g round 11 1 - 7 70 .-7 45 +-5 77 +-8 75 .-8 78 +-8 95 +-10 tc3 54 4tDI-

• t IDt.
• 11111.

4thl. 0.9 -0.3

• >tDL C0-58 PIOL

- P IDI. 4 1161. 1.9.-0.3 4tt)L 41DL Zll-95 1.3.-0.3 1.4*-0.4 5.7.-0.6 15 +-2 30 .-3 32 +-3 Nti-95 1.1.-0.2 1.9*-0.3 9.le-0.9 23

• -3 61

+-6 67 .-7 101-103 1.9.-0.4 1.1.-0.3 3.7.-0.4 7.7*-0.8 11 +-l 11 +-l i< t l 106 9tDL < >Itll. 4fDI. 5.2*-2.2 16 +-3 19 +-5 Sti-125 d p tlif. s t ID L itDI. 411)L 1.5.-l.2 2.8*-l.3 Cs-137 4 tt il. 0.4*-0.2 0.4.-0 2 1.5.-C.3 3.0+-0.5 2.6.-0.6 (1-141 0.9. 0.3 1.0*-0.4 2 5.-0.4 5.0.-0.5 4.2,-0.4 5.5*-0.6 (1.-144 < >101. 4 1111. 5.0+-1.1 I4

• -2 24

+-2 55 +-b "lli-AP-I nd i c a t o r Hi.7 27 .-3 53

• -5 49
• -5 57

.-6 68 e-7 66 +-7 6C4 - 5 4 >1t il 4 tdt. < t IDI. = >till < t tD t. < >tD L un (0-58 9ttil 41DI. 41DL 1.3+-0,2 4111L 4t0L 71< - 9 5 0.5. 0.1 1.7*-0.3 3.4.-0.3 10 .-l 23

• -2 23

+-2 Nh-95 0.7.-0.1

2. 2. - 0. 3 6.5+-0.7 13

+-2 44 +-4 46 +-5 i<u 103 0.6.-0.1 1.3.-0.2 2.1 -0.2 5.3+-0.5 9.2+-0.9 8.0+-0.8 l<t i-I Db 91DL PIDt. 6th l. - 3.5*-1.6 12 +-4 13 +-3 Sin - 12 5 ilDI. 4till < til L 41DL OIDL 1.4*-J.5 CS-137 0.10.-0.07 0.4.-0.2 0.3+-0.2 0.7. 0.2 1.3+-0.4 2.3 -0.3 01-141 0.6.-0.1 1.2+-0.2 1.7.-0.2 3.1.-0.3 5.0.-0.5 3.8 -0.4 C1. - 14 4 < FIDL 4tDI. 3.4*-1.1 8.2.-l.1 30 +-3 36 +-4 O All othe r gartma emit t e r s 4tDL. -M i %P Q M

4 6 2 7 7 7 7 745l 6 03 3

4220, 3

031 0 nm + 00 + + 0 + +00 + + 0 + 3 e 7 5 4 1 7 7 2 1 6 5 0 1 1 5 1 5 4 1 0 5 4 8.3 8'

6. 3 3 8.2 9

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530, 0

00 7 7 +00 + - + + - * + + + 00 + - + + - * + + 2 o0 72 7 + *2 5 37 0 t 3 7 1 5 8 48 1 2 8 3 6 36 1 25 0 1 8 1 9 1 1 1 1 S E T A a I m 7

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C ig 3 2 26 23 6 1 1 2 2 7 7 1 57 0 24 0 I s 7 7 T + 00 + - + + - + + + +00 + - + + - + + + R 2 8 o2 7 8 A 2 t 0 A R 0 1 1 2 1 1 27 3 0 8 94 01 1 Y P + 9 2 75 4 N 9 1 2 1 3 6 1 e P I m M A / t O i i C NI C s p o N p O 8 S mo S H 8 4 I B l '01 7 7 26 4 0, 5 1 362 2 033 7 7 0 0 c D l T s I t I f 1 o8 + 4 1 + - 3 6 - + 4 + + 00 + - + 3 - + + + i l h N B M o 3 t 2 < 5 7 < 4 A A t I T I s 8 9 9 2 1 3 0 9 8 1 73 s T t n M t i 0 0 8 1 2 6 1 i L O h n P A U d 3 G e H n d T F i u E O l M s 3 742 1 7 25422 c S t 7 7 n N l 7 7 b ! 2020003 4 0 02 01 00U4 i O u - LL - - - - - - L I s 7 o1 + DD + + * +.. + + + + D. + + + * + + + t R 7 H 6 1 3241 2 H8 34 056 o T e 2 t 3 MM 1 958 A R n I 0 O 5 1 2 1 200 00 651 81 1 03 3 4 1 2 d N n I a CN r O e C t a 9 965 2 6 4 4 3 w 7 7 7 7 9 3504 00 05 7 0. . 24 02 0004 y b - lL - l i 9 o7 +l D + + + + *. + + + + u+ + + +. + + 3 ! 7 4 4, P 6 7 3 0 d H H. 2 t 2 e 0 0 9 25 1 231 3 0 19053 1 3 2 0 k 6 7 5 62751 5 7 4 1 4 aos erew 7 7 7 0 2 E 3 657 1 4 5 65 7 1 ! D 4 855 0 1 4 4 4 85 5 0 0 1 3 4 ! L 1 I 7 55 991 102 1 1 1 7 55991 1 1 1 1 ! H t 3 D u L t s t 7 C tJ Ok BliUi5i u l.NoRi Uli St 3l l. I hWCZ Nk H SL( L b MCZ hH k CC t rs M 7 e 0 t 3 t im1 e 1 dn r a m u o m o o t m r r a a t O, g c g k i s N d r le u n e N B I h p O t n P P o a A A g& l h.% S dI c A e T M 1 l 1 S T 1 A

1 G 5 1 1 29 3 0 1 7 35 531 52 I 5 0 81 8 l 98606 90301 8675 75678 77l 8 6657 A 1 1l l 5 N 1 1 C 8 6 3075 94 5 69 l 3l A l a! l 1 1 !4ll t l 5880 7 l z7l S876 6800 1 < < < < < < 4 <

• 4 < < < < <

E 7 7 9 1 R I m A Y / N D A E i C P R p l A M L 5 5 9 2 05 6 4 23 72594 9 4 997 O T C I '0 L l 8i6l 5 272! 3 80 86 86t 8 9 9 8 83 l 1 7

• A l

l 1 l N F 1 N O 9 S N f 1 I B I o D E L 1 s L 3 t N B 1 i A A n T T 1 U I 7 L F n l 7 O O i S 1 PO S M 0 9 87 0 3 R N s E l 80. T I u t < < < a < < = < < O t M T l A 1 6l; 73l 7 8 7 l l 0 7 A s r 2 R e R e 0 T R t T f 3 D a 0 CN n n O o o C i d tc e 2 e u S l n I 8 1 8 0 3 3 9 o52 5 o 4 696 l i a. t l 8O7l L 9lI 1 9 3l 75 8L 67 b 6*

• 878 c

n 2 A l l d co N i s 1 m. d i oe t v s i a yt w aa cr! eeS d pB 7 7 777 7 77 7 7 77 7 77 77 7 7 77 7 777 7 o 77777 77 7 7 7 7 7 7 7 7 7 7 7 7 77 7 7777 r nn uio 52 062 97 3 2 9 63 9 o1 01 t 1 85 1 852 9 t i PL 01 22 0 01 2 0 01 2 2 n1 2 2 u 1 1 2 0 0l 2 2 t t IOI 1 1 2 22 2 3 s 5 3 5 3 1 1 1 5 55. 0 6 tr..- A d n a t t e et S' D 0001 tu0 0000 U 000 0 0 00 0 0 0 0. 0 0uOO t mS c p ei m r uo r qr oef c g g s n n t ii l l lupp s mm 67 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 1 7 7 7 7 e a a 7 7 7 7 7 7 7 7 / 7 7 1 7 1 7 7 7 7 7 7 1 7 7 7 7 7 W$S I 95 20 6 1 >- 7 3 2 9t 1 9 n i. 0 / 4 1 8 52 F f 2 01 22 0 u1 2 00I 2 2 o1 2 1 01 is5 1001 2 2 Al TA 21 1 0000 OO0 0 O u00 u 0 U0 0 0Ou0 SD 1 0 10001 2 2 2 2 ii1 1 i t 1 1 l 5 S 5 5 0 b t 0 ga CC b(dg

FfETROPOLITAN I DISON COMPANY TAllLL B-9 CONCLNTRATIONS OF I-131 IN FILTERLD A!!! 1977 Results

• in Units of 10 pCi/m SIART STOP l.'. l t DAll 1}i-Al-I S 2 lbl-A l -8Sl "
• 11t-A l - S A l 1N-Al-8C1 1}f-A l-15 Cl 06-29-77 07-Ot,-77

< 5.8 < 7.2 < 6.3 <36 01-06-77 07-13-77 < 9.2 <!2 <ll <l20 01-13-77 07-20-77 < 8.4 < 7.7 < 8.9 < 8.1 07-20-77 07-27-77 <10 <10 <10 <10 07-27-77 08-u 5-7 7 <10 8.8 <ll <10 03-05-77 09-10-77 <11 <10 <12 <!2 05-10-77 06-17-77 <10 <!3 < 8.4 < 7.9 08-17-77 03-24-77 411 < 9.1 < 8.6 08-11-17 03-31-77 <ll =* < 9.1 < 8.6 08-51-77 09-01-77 440 <0 <30 f' 09- 0 7-7 7 09-14-77 <50 440 <40 <30 09-14-77 09-21-77 <40 <20 <40 <30 0'J 7 7 09-23-77 <100 490 <100 <100 09-28-77 10 05-77 <80 <80 490 <70 10-05-77 10 12-77 <30 <30 <30 <30 10-12-77 to-19-77 <30 <30 <30 <30 10-19-77 10 26-77 <50 460 <60 <60 10-26-77 II-02-77 <20 <20 <20 <20 11-02-77 11-09-77 <20 <20 <30 <20 11-u9-77 11-16-77 <50 <30 <30 <30 Il-le // 11-24-17 <40 <40 <50 <40 11 24-77 11-30-77 440 <50 <50 <50 11-30-77 12-07-77 12-07-77 12-14-77 <40 440 <40 <50 12-14-77 12-21-77 <40 <30 <40 <30 12-21-77 12-28-77 <30 <30 <30 <40 Hesults corrected for decay to sampling stop date 1-1-77-8-31-77 and correct ed for decay to mid collection af ter 08-31 77. Samp l ing citu t [> merit inoperative. S.am p l i n g from Station 8S1 was discontinued on 03-02-77. Samples J.smaged in transit. 4 C

AM C I 1 2 0 S 8 4 1 1 5 3 1 1 1 6 8 2 1 6 1 1 3 1 2 2 1 + + + + + + + + + + + + + NA 2 8 4 8 3 9 b 5 7 6 0 5 9 1 1 1 1 1 1 3 1 2 3 2 l 1 l M i lGAR E VA 1 G 1 A 5 l 1 3 4 4 4 3 2 4 l l t l i N W + + + + + + + * + + + + NA R 0 8 3 3 8 6 1 1 a7 8 5 1 1 3 1 2 1 1 1 1 7 1' 1 7 9 1 NO I 1 6 5 T 1 2 3 4 1 3 4 2 1 l l l A a 7 T m I g W + * + + + + + + + + + + i I s I 8 1 P i t C l 5 4 4 4 t 1 9 1 a 8 9 i U 1 2 3 2 1 l l 2 li 1 lC N 1 I / N i 0 O 0 S C 5 l 1 l p A t S D l 5 4 4 4 4 3 2 2 2 l l i I 1 T 'f 1 I + + + * + + + + + + o W 1 i 1 R 9 9 l. N i 1J A l s 9 8 9 4 4 8 k 5 7 2 1 T A I t l T A n 2 1 3 3 1 2 1 1 y i i r I 1 T U a 0 u P n n a 0 J i t i 1 T 0 s 7 1 I n i t S Mi S 2 3 4 4 5 4 4 2 1 l l i l B N u + * + + + + + + + + + + I O s W e R 0

• 4 S

I T B l A I t 7 9 2 0 5 5 7 3 1 1 7 i U 3 4 4 2 2 2 1 1 1 n t T o N i i t l C a N t O S C l e 7 7 7 7 7 7 7 7 7 7 7 7 cd 7 7 7 7 7 7 7 7 7 7 7 7 ae l v 7 5 9 7 1 8 6 0 8 'e e

i 6

3 1 PE 2 2 0 2 2 2 2 3 2 2 3 2 OT r c 2 e ) 2 3 4 5 6 7 3 9 0 TA 1 3 1 1 1 l r Sl 0 0 0 0 0 0 0 0 0 C h e l n p o m i a t s 6 7 7 7 7 7 7 7 7 7 7 7 a 7 7 7 7 7 7 7 7 7 7 7 7 t O SN 7 5 9 7 1 6 6 0 T i 2 2 2 0 2 2 2 3 2 2 3 t 9 6 3 1 lATl TA 2 1 2 1 4 5 t 7 )M 9 0 1 0 0 0 0 0 u 0 f 0 1 1 SD 1 '?,C 4S

M1!'llt0 POI.lTAN liDISON COMPANY TA111.11 B-11 CONCl!NTitATIONS 01: 1RITil!M AND GAMMA 1:MITTiillS* IN PitI:CIPITATION 1977 Results in Units of pCi/t. 1 2 sigma STAllT ST0l' STATION NO. I)ATli DATli 11-3 lili-7 Nil /ZR-95 Illi-103 TM-ItW-5Al 12-29-76 03-30-77 <200 4tDI. 4tD I. <rtDL 04-01-77 05-25-77 177+-160 'NI)L 2.5+-0.7 4tDI. 06-29-77 09-28-77 150+- 90 < MD I. <MDL < M111. 09-28-77 12-28-77 370+- 80 <!!DI. 4tDL <MDL TM-RW-8CI 12-29-76 03-30-77 <200 24 +-12 33 +-3 2.0+-1.4 04-01-77 06-29-77 <200 23 +-7 3.9+-0.7 ' MI)L 06-29-77 09-28-77 <120 <MDL <MDL <MDL 09-28-77 12-28-77 140+- 80 <MDL 4tDL < MDI. mo TM-RW-71:1 12-29-76 03-30-77 165+-104 61 +-26 5 +-5 4tDL 04-01-77 06-29-77 205*-160 8.9+-4.4 6.30+-0.9 1.9+-0.7 06-29-77 09-28-77 <110 4tI)L < MDI. <MDL 09-28-77 1.?-28-77 290i-80 ' MI)L < MD I. 'MDL TM-RW-15GI 12-29-76 03-30-77 23~ -105 72 +-24 23 +-4 8.0+-3.8 04-01-77 06-29-77 <200 'MDI. 3.3+-0.7 1.7+-1.0 06-29-77 09-28-77 180+- 80 4tDI. 4tDL < MDI. 09-28-77 12-28 77 170+-100 4'D L 4tDL 411)L

• Al 1 ot he r gannaa emi t t ers 410L.

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3 42 4 4 4 4 4 0 0 0 0 0 0 0 0 + + + 0 + + + 4 + 9 4. 7 1 5 0 5 2 2 . 1 Si 01 04 01 0 t 7 7 9 1 NO I T 3 3 3 1 A 57 52 5 8 5 7 T a I m 0l 0l 0l 0 0 P g + + 9 + + + + + + I i Y C s 8 2 8 9 3 A l t 67 9 2 5 8 9 4 N l 2 i 24 1 4 2 4 3 i t P P S 1 M 1 O N I E C / N 0 i O 2 9 C S 1 p t I i D. 1 S f 1 ~ o l i D l. N N s l T l /s t 77 77 77 77 l A A i 77 77 77 77 I. I' 9 n I 8 U 58 98 98 98 O P!I 22 22 22 22 P i n OT t 0 S i TA 52 62 62 62 T SD 01 01 01 01 t I Ml 01 s i t l S u N s O e i I l 67 67 67 67 TA 77 77 77 77 t l 99 99 99 99 l' T 22 22 22 22 t N l l L AT 26 26 C TA 26 2 W, N SD 0 1 0 10 1 1 O C O 1 G N I 1 1 N S 8 71 5 A C 1 O i W W W l u t t t l l I I I A l M M M i T l l I I S 7 E Cet[]AC J

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== 0 C O O O 9 v v v v v M M M M M Y< O O O O O v v v v v d M M M M M i S C O O O O O v v v v v J .P >= 2 '4 M .J L e .Y em A n n h w w Z C O C r' C O M rA M A M M M M M

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MliTit01'OI.lTAN EDISON i'OMI'ANY TA111.li B-15 CONCl:NTitATIONS 01: GAf t!!A l.MI'ITliitS* IN Gill!!!N 1.l!Al Y Vi!Gli'I Allt.liS AND 1:ltillTS 1977 Ilesu l t s in thiit s of [)Ci/gm (wet) 1 2 sigma SAMI'I. I NG S AMI* t.li STATION NO. DATl! TYl'li K-40 till-7 Zit/NB-95 TM - 1:l'V - 5111 07-30-77 Cabbage 3.4+-0.3 0.0S+-0.01 0.017+-0.003 'I M - l:l'V - 71t i 07-30-77 Cabbage 2.2+-0.2 (MDI. <MDI, TM 1:l'V-14Cl 07-30-77 Cabbage 3.7+-0.4 <MDI. P.017+-0.003 'l M - 1 l'V - 2G 1 07-30-77 11rocco 1 i 7.8+-0.8 0.14+-0.04 0.07,9+-0.006 A >1> l e s 1.2+-0.I <MDl. <MDI. 'I M - l:l'l: - S I:.' 08-03-77 1 'I M - 1:lil: - 51 2 08-03-77 l'ea ch e s 2.1+-0.2 <MDI. <MDI, TM - 1:l'l - 12G.' 08-03-77 Alijil e s 1.b+-0.2 < MDI. < Mill. 'IM-l:l'l - 12G2 08-03-77 l'ea c hes 1.9e-0.2 <MDI. <MDI. 9

• Ai1 ot her ganuna emi t t ers < MD I..

9

v s METROPOLITAN EDISON CCMP.UY TABLE B-16 TLD DOSE RATE 1977 Results in Units of mrem / standard month 12-29-76 03-30-77 06-29-77 09-28-77 to to to to AVERAGE STATION NO. 03-30-77 06-29-77 09-28-77 12-30-77 22: Control Locations 4.6 +-3.S TM-ID-1F1 4.304-0.32 4.47+-0.33 4.4S+-0.23 TM-ID-7F1 7.76+-0.79 8.1S+-0.36 7.1S+-0.30 9.5 +-1.0 S.2 +-2.0 TM-ID-4G1 6.21+-0.34 6.01+-0.44 5.37+-0.34 7.9 +-0.4 6.5 +-1.S TM-ID-9G1 6.03+-0.34 6.61+-0.31 6.35+-0.20 7.3 +-0.3 6.7 +-1.6 TM-ID-15G1 6.77+-0.33 6.55+-0.22 6.11+-0. 3 7.7 +-0.S 6.3 +-1.4 5.5 +-1.2 TM-ID-5H1 6.21+-0.34(1) 5.27+-0.71(3) 5.06+-0.38 TM-ID-5H2 5.79+-0.54(2) 8.9 +-0.6 5.S +-0.5 8.9 +-0.6 TM-ID-7G1 Indicator Lccations TM-ID-15 6.71+-0.19 5.57+-0.15 5.26+-0.31 7.0 +-0.3 6.1 +-1.6 TM-ID-2S2 4.S5+-0.53 4.71+-0.34 4.39+-0.14 6.4 +-1.2 5.1 +-1.S TN-ID-452 6.65+-0.60 5.71+-0.SS 5.27+-0.:S 7.4 +-1.2 6.3 +-2.0 TM-ID-553 5.54+-0.22 5.16+-0.22 4.79+-0.40 6.5 +-1.4 5.6 +-1.6 TM-ID-SC1 5.29+-0.46 4.14+-0.22 3.74+-0.40 5.7 +-1.4 4.7 +-1.8 TM-ID-952 6.11+-0.59 5.67+-0.30 5.33+-0.20 6.3 +-0.6 6.0 +-1.2 TM-ID-1152 5.95+-1.10 6.16+-0.49 6.10+-0.68 8. +-1.4 6.7 +-2.6 TM-ID-1452 TM-ID-1651 7.12+-0.33 6.54+-1.24 6.23+-0.09 3.6 +-1.6 '.1 +-2.2 TM-ID-4A1 5.47+-0.60 5.53+-0.33 5.31+-0.3: 6.6 +-0.4 5.7 +-1.2 TM-ID-5A1 5.74+-0.65 5.65+-0.33 5.07+-0.19 6.1 +-0.4 5.6 +-0.S 4.8 +-0.4 TM-ID-16Al 4.93+-0.:992) 4.70+-0.14 4.64+-0.20 6.2 +-0.3 TM-ID-10Bt 6.15+-0.39(2) 6.41+-0.53 6.16+-0.79 TM-ID-12B1 4.78+-0.73 4.55+-0.43 4.33+-0.17 5.5 +-0.: 4.3 +-1.0 TM-ID-1C1 5. 3 7 + - 0. 4 ', 4.77+-0.43 4.57+-0.21 5.4 +-0.6 5.0 +-0.8 Average 5.93+-1.53 5.62+-1.93 5.31+-1.72 7.2 +.2.4 Not collected Nov., De c., J an., F e'o. TLDs were stolen. No sample received. (1) Sampling period was 1:-:5-76 to 03-30 (2) Sampling period was 09-29-76 to 03-30 (3) Sampling period was 03-29-7 to 06-30-77 56 r-3 L} 1 Fe d

MliTitOl'01.lTAt1 !!!)lSON COMI'ANY Tall!.li Il-17 COfl0NTitATilONS 01: GAllMA 1:f11Til.itS IN li!!!:l AND GAMli 1977 itesul t s in linits of pCi/ gin (wet) i 2 sigma S AMI'I.I NG S AMl'i.l! STATlati f40. DATli TY l'ti K-40 CS-137 Til-GAD-131 1 10-29-77 I)ee r 2.4 * -0. 8 0.088+-0.040 TM-1:l'It-415 2 11-18-77 lie e f 3.4*-0.5 -0.02 '111 - l:lt11-51:4 Il-19-77 Ilee f 2.4*-0.4 <0.02 I All ot her ganana em i t t e r s < ?illt.. O v C la A D

+ i 8 5 f+ I I (t ( 1 I2 01 l 2 ( 1 1 2 1 2 I 2 1 1 22 I 1 3 n b 2 2 00 00, 00 00. 00 00 00 00 00 00 00 0 00 1 + + + + + + + + + + + + + + + + + + + + + + + + + 11 4 2 8 7 57 06 66 98 7 0 56 97 59 88 4 8 58 3A 7 00 1 0 00 00 01 00 00 00 00 00 00 00 0 89 3 99 8 9 6 12 1 0 1 1 2 1 9 1 1 1 1 02 7 00 1 2 01 00 01 2 . 0 00 00 00, 00 00 00 00 00 00 00 00 0 0 2 + + + + + + + + + + +. + + + + + + + + + + + + + A 22 2 77 0 9 3 R 89 09 80 76 00 08 O1 72 7 8 30 1 0 9A 9 00 . 0 01 00 1 1 1 0 I 1 01 00 01 i1 00 0 1 4 1 LL LL L LL LL LL LL LL LL LL LL LL 3 a DD DD 1 D DD DD DD DD t 1 t t t DD t M 0 E MM MM 0M t t MM t t H1 D DD DD t t DD i C 44 44 4 ! 4 44 44 44 4- + 3 3 0 0, 1 4 0 o 1 - L LL LL LL LL LL LL LL LL LL LL LL 5 + D DD DD DD DD DD DD DD DD DD DD DD 0 E 5M MH MM MM MM MM MM MM MM MM t t M C 0* 99 9 0 0 35 3 53 73 7 3 4 6 9 7 3 7 7 00 01 00 00 00 00 1 0 2 0 1 1 1 0 1 1 0 22 8 3 7 00 00 00 00 00 00 00 00 00 00 00 00 0 7 9 S + + + + + + + + + + + + + + + + + + + + + + + + 1 C 07 5 3 4 55 7 t 132 32 53 34 7 4 231 58 6 a 5 0 9 4 31 72 54 64 62 L I 00 00 00 00 00 00 1 0 1 0 1 0 00 00 1 0 0 O a S m N ig 3 4 I s 5 0 0 5 8 2 S 2 1 0 0 0 0 Y N - L LL LL LL L LL LL LL - L LL LL LL N E t + D DD DD DU + D DD DD D D + D DD DD D D + B 5 M Mt MM MM A T t>M MM O

• MM MM M

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0 0 t 5 t !MM MM l 9 1 4 0 0 0 T A o I T 0 0 0 0 0 0 L 9 s 0, 0 O t P R O S i n 6 3 2 6 7 0 H D 2 0 0 0 E O n 5 0. 0. 0 1 0 1 T F 0 0 0 0 0 0 M i 9 L - L - L l1 L LL L LL Ll LL - L - L S + M 9t D + D + D i 0 + U DD . D h D Di D D + D +D + l l N s R 5 t,M M1 4 M r l 7 t t t f MM t 8 P 8 4 ad 4 oM 4a 04 O - O t 2 0

• 0 -

0 2 t 0 0 I l 0 0. T u 0, 0 0 0 0 0 A s R e T R N 8 L 8 98 03 93 98 m2 C 36 7 27 N 0l 0l 0l 01 01 0l l t. 22 l l 2 2 22 1 1 b O 0 C 4 + + + + + + + *

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+ + + + + + + + + + + + + + + K 3 4 6 32 64 2 9 59 45 1 81 81 98 88 38 99 a6 125 43 7 7 4 4 36 89 01 1 1 1 1 1 1 1 42 4 3 4 3 00 00 00 1 3 4 3 3 4 3 3 4 13 3 4 4 4 4 3 0 0 0

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00 00 00 0 0 00 00 1 9 00 00 00 00 00 s0 00 0 0 00 00 00 00 0, - + .+ +

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+ + +. + + + S 32 99 1 2 1 I 1 1 1 I 2 27 21 2 2 1 1 1 1 ] 4 00, 00 03 0G. 00. 0. 0O. 0O O 00 H0 D0 0D NO EI m m m m m m m m m m m m L T o o o u o o o o o o o u PA t t t t t t t t t t t t MN pt pt pt pt pt pt pt pt pt pt pt pt AG oo oo u o o u uo o o oo o o o o o o ou o o SI TB l t TB Tb l b l B TB l B Tb TB l h Tb S i E D 7 1 7 7 7 7 7 1 7 7 7 7 L 7 7 7 7 7 1 7 7 7 7 7 7 T A 5 1 7 1 5 1 1 3 4 7 4 4 D 0 2 0 2 0 2 2 2 2 0 2 2 5 5 5 5 5 5 4 4 5 5 5 5 O N l I N l l 1 2 2 l C 2 I GI G E A u 8 B C C 4 1 F 5 G O I 5 J 5 I 3 I 7 1 1 7 2 1 A B d T L L 1 t 7 I L L L L L L I A 1 i l i V ~ T 1 it t i H H M H H H H l A ,hC q S 1 l l T 1 1 1 T 1 1 1 l d% mw

s. TTELEDYNE ISOTOPES TABLE B-19 GA>04A SPECTROSCOPY TYPICAL DETECTICN SENSITIVITIES

• 3Y HIGH RESCL'JTICN Ge(Li)

ENVIRON 51 ENTAL SAMPLES FISH, FLESH NUCLIDE WATER (1 liter) SOIL 6 VECETATION FILTERS DCiLf. (400 cm) cCi/gm cCi/ total filter Be-7 50 0.2 20 K-40 80 0.4 .50 Mn-54 5 0.02 2 Co-53 6 0.02 2 Fe-59 10 0.04 3 Co-60 6 0.02 2 In-65 10 0.03 5 7 Zr-95/Nb-95 0.04 3 Ru-103 6 0.02 2 Ru-106 50 0.? 40 I-131 10 0.01 4 Cs-134 6 0.02 2 Cs-137 6 0.02 2 Ba-140/La-140 15 0.04 3 Cc-141 9 0.04 3 Ce-144 30 0.2 20 Ra-226 S0 0.1 10 Th-228 8 0.02 10

• At time of sample collecticn, AfDL defined as 3 standard deviation of the backgrcund.

This table covers results that wer: measured between September 1 - Decem-ber 31, 1977 oG 251 59

g4 3395 4 3 3 3 4 6 6 l 600000 02 - - ip 0 - 300001 023 1 o/ Si 0 000000000000 0 000 00 Cp ( )s t S i T u C yr !! fF D a ) g 22 5362 2 2 2 2232 2 49 O c. n, / 03 00 000001 00 1 00000 02 1 R1 P oi - 0000000000000 00009000 niC 000000000000000000000 D et p 1 O ea( O rt FG e ( g e V no i t ) 1 7 t / 3 56 6 6 5 4 4 667 56 7 7 i i 9 J 7 pC 074001 01 04308000000031 2 1 9 i p 1 c( e 1 r 3 Y P Y R t N T A i s i u I M g M O u O R A C T s) C i e3 N l t m O 0 P a/ 1 S 2 S rl i 1 21 222 3 2 1 1 22 23 7 1 uC I i y D 1 A A c p r 020O000001 01 M i3 021 000001 1 1 a i M t - l. u l A r0 n N t G a1 A l a T A P( 1 T l J t O P I n 1 e 0 e U w R s. t T l t ) e l b I i n g 233 3 M M e/ 2 2 2 3 3 4 5 5 2 1 mi 0 - 1 0000001 2 0200000 - t t I i C e A t p 0 000000000 0000 000 00 t r C e( u I S s P a Y e T m e ) r g 3 66 8 5 5 44 6697 6 e h/ 0 40 01 02 01 2 0 900 00 0 0031 2 w si 0 - 000000 0000000 00000000 iC t F p 0 000) 00000000000000000 a ( h t s t l u e ) s c rl e ae/ 3 55 6 5 4 4 4 557 5 6 9 s r f t i i aC 073 001 01 01 2 O7 000000 03 02 s n s uW y S (p l r e a v n o a c f e o l b S 6 0 e a i 5 0 mm 4 m i t 1 4 68 D 9 1 o9 2 1 67 i l. 2 1 4 8905 t 2 1 3 3 3 3 3 - 1 2 2 t s l 2 0555 56 6b 9hI 1 3 1 3 1 1 1 al 2 2 i C 4 - - - - - - N - k - 1 1 l eah A t l h i a - rnoe onr oai g e - e - s s s a T N_ NKCMCI CZZ MRAT1 l 1 CCCliCRt

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. ~.. s rw eo bC 4 6 7 2 2 1 2 2 6 5 3 1 1 5 5 9 2 m 5 2 2 2 3 5 8 4 2 2 2 2 uf N o ec mn I 8 9 0 7 9 6 0 6 0 7 1 7 ra 8 3 5 0 4 7 at 5 1 2 4 4 4 4 4 4 2 2 3 3 5 9 F s 3 4 4 1 i D S N l iD 10 S Y i l. N I on A I P M i M mt O i rc E l E i W W W W W W W i C V

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