ML20238C943

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Environ Rept Suppl for La Crosse BWR
ML20238C943
Person / Time
Site: La Crosse File:Dairyland Power Cooperative icon.png
Issue date: 06/15/1973
From:
DAIRYLAND POWER COOPERATIVE
To:
Shared Package
ML20238C717 List:
References
DPC-ED-3, DPC-ED-3-01, DPC-ED-3-1, NUDOCS 8709100462
Download: ML20238C943 (40)


Text

--____ _ _ _ _ - _ _ - _ _

L ENVIRONMENTAL REPORT SUPPLEMEST for LA CROSSE BOILING WATER REACTOR June 15, 1973 DPC-ED-3 DAIRYIAND POWER COOPERATIVE 2615 East Avenue South La Crosse, Wisconsin 54601 8709100462 870905 PDR ADDCK 05000409 C PDR

Table of Contents Section Title Page 1.0 Introduction 1 3.0 Radwaste Systems - Addendum to Section 3.6.1 2 5.0 Summary of Planktonic and Benthic Organism Survey in the Mississippi River at the IACBWR - Addendum to Section 5.1 5 Dose Estimates Based on 1972 Releases -

Addendum to Section 5.2.1 13 Environmental Radiation Survey of the IACBWR - Addendum to Section 5.2.3 22 Environmental Radiation Monitoring -

Addendum to Section 5.2.4 24 11.0 Revised Tabulation of Costs and Benefits Re Alternative Radwaste Systems - Addendum to Section 11.3 31 Errata 33 l

m I

Tables Table No. Title Page 1

3.6-S1 LACBWR Stack Release Data 3 s.6-S2 Isotopic Breakdown of Airborne Releases 3 3.6-S3 LACBWR Liquid Waste Batch Release Data 4 3.6-S4 Average Concentration of Radionuclides Discharged to the Mississippi River 4 5.1-S4 Occurrence (number / Liter) of phytoplank-ton organisms collected above (Transect A), and below (Transects B, C, and D) the heated outfall of Dairyland Power Cooperative Plant, Genoa, Wisconsin, November 1972 7 5.1-S5 Occurrence of zooplankton (number / Liter) organisms collected above (Transect A) and below (Transects B, C, and D) the outfall of Dairyland Power Cooperative Plant, Genoa, Wisconsin, November 1972 8 5.1-S6A Number of organisms per square meter, bottom sediment t6mperature, biomass, and depth, at (Transect A) Genoa, Wisconsin, November 1972 9 5.1-S 6 B Number of organisms per square meter, bottom sediment temperature, biomass and depth, at (Transect B) Genoa, Wisconsin, November 1972 10 5.1-S 6 C Number of organisms per square meter, bottom sediment temperature, biomass, and depth, at (Transect C) Genoa, Wisconsin, November 1972 11 5.1-S 6 D Number of organisms per square meter, bottom sediment temperature, biomass, and depth, at (Transect D) Genoa, Wisconsin, November 1972 12 5.2-S2 Individual Dose Rates from the Liquid Discharge (mrem /yr) 14 5.2-S4 Doses to the Population from LACBWR Liquid Releases in 1972 (man-rem /yr) 15 5.2-S5 LACBWR Tritium Releases in Waste Water 16 5.2-S6 Dose to Biota in the Mixing Zone 17 5.2-S7 Calculated Maximum Hypothetical Individ-ual Off-Site Dose Due to LACBWR Stack Releases (mrem /yr) 17 5.2-S8 Cumulative Population, Annual Gamma Man-Rem and Average Doses from the Gaseous Effluent Released from LACBWR in 1972 18 5.2-S9 Quarterly Dose Measurements in the LACBWR Vicinity Calculated from TLD Readings for 1972 19 II

Tables Continued:

Table No. Title Page 5.2-S12 Results of Milk Analysis by Gamma Spectroscopy 26 5.2-S12A Radioactivity in Grass on Neighbor-ing Farms (pCi/gm) 27 5.2-S13 Radionuclides in Mississippi River Silt at IACBWR (pCi/gm) 28 5.2-S14 Radioactivity in Mississippi River Fish at LACBWR (pCi/gm) 29 5.2-S15 Radioactivity in River Water at LACBWR 30 5.2-S16 Radioactivity in Rainwater (pci/1) 30 11.3-S1 Alternative Plant Design Summary 32 III

Figures Figure No. Title Page 5.2-S3 LACBWR Vicinity Semi-Weekly Air 20 Particulate Activity (Gross B ,Y) 5.2-S3 (Cont'd) IACBWR Vicinity Semi-Weekly Air Particulate Activity (Gross B,Y) 21

5. 2- Sil Direct Radiation from IACBWR Facility Without Plume overhead 23 IV

Introduction This supplement is an updating of the original IACBWR Environmental Report (DPC-ED-3) , as indicated in the cover letter to Mr. John F. O' Leary of December 8,1972. This supplement contains an updating of the operating information and environmental monitoring data from the end date of the report, August 1,1972 through December 1972. This addendum takes into account recent fuel performance, releases of radioactivity to the environment and associated environmental impact.

The errata for the LACBWR Environmental Report are included.

l LACBWR Environmental Report Supplement - Section 3 ADDENDA Radwaste Systems (ADDENDUM to Section 3.6.1)

The results of the LACBWR stack and liquid release data for the year of 1972 are summarized in the following supplementary tables. Table 3.6-Sl* compares the LACBWR stack release data for the years 1969, 1970, 1971, 1972.

Table 3.6-S2 breaks down the airborne releases into its various isotopic constituents for the years 1969, 1970, 1971, 1972. Table 3.6-S3 summarizes the liquid release experience from 1969 - 1972, and the average concentrations of radionuclides released to the Mississippi River for the years 1969 - 1972 are summarized in Table 3.6-S4.

  • Numbers of tables in this addendum correspond to the numbers of the tables they supplement in the original report with the exception of Tables 5.2-S-15 and 5.2-S-16, which have entirely new data.

Table 3.6-Sl: IACBWR Stack Release Data 1969 1970 1971 1972 Total Release (Ci) 483 670 528.88 30,633 Avg. Yearly Release Rate 15.3 21.2 16.8 971.4 (uCi/sec)

Percent of Allowable Avg. Yearly Release Rate 0.10% 0.14% 0.15 5.13%

Maximum 24-llr. Release Rate 461.7 255.8 151.0 16,992 (uCi/sec) 1 Table 3.6-S2: Isotopic Breakdown of Airborne Releases (uCi/sec) 1969 1970 1971 1972 l'w-85m 2.5 68.9 Kr-87 0.72 0.72 0.41 87.8 Kr-88 0.15 0.15 0.15 94.0 Xe-133 0.13 0.13 0.26 42.6 Xe-135* 227.9 Xe-135 0.15 0.13 2.4 273.8 Xe-137 53.8 Xe-138 0.22 0.22 2.1 122.836 I-131 Not De- Not De- Not De- 0.021 tectable tectable tectable Total Particulate 0.573 2.53

\.

)

b Table 3.6-S3: IACBWR Liquid Waste Batch Release Data

. _ . 1969 1970 1971 1972 5 11.0 6.34 10.13 8.73 Waste Water Dilution Water(gal.

(gal x 10x 10 )10) 6.78 8. L19 9.20 8.77 Gross B, Activity Released i' excluding Tritium (C1) 8.52 6.41 17.065 48.52 Volume Avg. Conc, at >

Outfall uC1/cc x 10-8 ,,

3.36 1.,99 .5.31 14.62 Percent of RCG 0.11% 0.07% 0.18% 6.39%

~ '

Maximum 24-hr. Conc.

(uCi/cc x 10-8) 3 tl . 7 101 ltt5 1890 Tritium Released (C1) '

2 Lt . 8 19.8 91. LIL1 120.84 Volume Avg. Conc. at Outfall'-

(uC1/cc x 10-8) 9.66 6.16 2tt.96 36. 6tl Percent of RCG 0.003% 0.002% 0.008% 0.012%

Table 3.6-S4: Average Concentration of Radionuclides Discharged to the Mississippi River

.. ____ (uCi/ml)

Isotope 1969 1970 1971 1972 Cr-51 0.131(-11) 0.78(-12) 6.51 (-11) 3. 90 (- 9)

Mn-Sti 0.360(-11) 2.13(-11) 6.29(-11) 7.18(-10)

Co-57 11.08(-11)

Co-58 1. 20 (- 8) 0. 71(-8) 1. 2tt (-8) 8.17 (- 8)

Co-60 0.642(-10) 0.38(-10) 7.80(-10) 5. 50 (- 9) re-59 7.32(-11)

Zn-65 0.454(-11) 0.268(-12) 9.19(-11) 1. 07 (- 9) 1-131 1. 83 (-8)

Cs-134 8. 62 (- 9)

Cs-137 1. 61(- 8)

Ba-La-140 1.10 (- 9)

,o I

MCBWR Environmental Report Supplement - Section 5 ADDENDA Summary of Planktonic and Benthic Organism Survey In the Mississippi River at the MCBWR (ADDENDUM to Section 5.1)

Samples of phytoplankton, zooplankton, and benthos were collected on November 11-12, 1972, on four transects above and

.ielow the Dairyland Power Cooperative Plants at Genoa, Wisconsin. l'lankton samples were coller.ted by making one horizontal c Wng the transects shown ir Figure 5.1-2. Two benthic grau samples were collected at each of ten stations on each transect.

The phytcplankton populations shown in Table 5.1-S1 were moderately high at all four transects and were typical of the river winter pop 11ations. Diatom forms were dominant in all four samples. Stephanodiscus astraea was the most abundant diatom at all stations. Representatives of the blue green algae were present in much lower numbers than they were earlier in the summer.

There were no significant qualitative or quantitative differences among the samples. The similarity in populations is a g , result of complete mixing of water in the sampling area.

The zooplankton populations at all stations were similar, as shown in Table 5.1-S2. Cyclops vernalis was the most abundant s'

organism at all collecting points. No significant quantitative or qualitative differences were noted among the samples.

Differences in the zooplankton populations would be difficult to note wl th an instantaneous sampling procedure because of the mixing that occurs.

Organisms collected in benthic sampling of each of the four transects are shown on Tables 5.1-S3 through 5.1-S6.

The sediment type at all stations was fine sand and silt with the exception of station 10 at transricts B , C and D. Here wave action has aggradated soil onto the slope and has created an organic sediment. Because of this relative unstable bottom type, the standing crops of benthic organisms were very low, and the area is relatively unproductive.

Dipteran larvae and Oligochaeta accounted for more than 944 of the total benthic fauna at all stations. Many early instar dipteran larvae were noted in the samples. There were no significant quantitative or qualitative differences in any of the samples. The distribution of organisms appeared to be a function of sediment type and depth.

Based on these data, it would appear that the outfall of cool-ing water from the plant has little or no effect upon plankton and benthic populations. However, since these data are instantaneous, they are not suitable for application to the determination of long term effects on the populations.

J(,ns * .

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" Table 5.1-S4 j Occurrence (number / Liter) of phytoplankton organisms collected above (Transect A), and ' below (Transects B, ,

C, and D) the heated outfall of Dairyland Power Coop- '

erative Plant, Genoa, Wisconsin, November'1972 Organism # Organism / Liter, 't Trans A Trans B Trans C Trans D Ulothvix aequalis 6912 74tl5 9830 9457 i Ulothrix variabilis 1000 2619 2775 '3075 Scenedesmus quadricauda 110 110 160 160 .l Scenedesmus dimorphus 140 140 280 170 Ankistrodesmus falcatus 43 Chlamydomonas 5 ~i 43 Actinastrum hantzchii, 43 Pnndorina morum J. 43 Pediastrum duples '

85 Gleocystis Rinas ,

85 Staurastrum paradoxum 85 L

Microcystis aeruginosa-85 Anabaena circinalis 480 370 370 165 Oscillatoria sancta 300 150 4 Chroccoccus monor  !

Phormidium retzii 43 i Nodularia spumnena 85 l 1

Navicula 3 670 820 735 8tt0 S tephanodiscus astraea 9tt80 10,000 8560 7995 gagillaria orctonensis 2tl50 2137 198tt 1743 Meiosira distars 3731 84til 3tl49 2147 Asterionella formosa 2140 2008 3112 1837 Asterionella rali'sii 273 8tl8 612 395 )

Synedra. m. 1845 1651 1919 lit 75

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Table 5.1-S5 Occurrence of zooplankton (number / Liter) organisms collected above (Transect A) and below (Transects B, C, and D) the outfall of Dairyland Power Coop-erative Plant, Genoa, Wisconsin, November 1972 Organism Number / Liter Trans A Trans B Trans C Trans D Cyclops vernalis 9.2 11.1 12.9 16.2 Euevelor,s actilis 1.4 3.3 5.1 2.3 Eucyclops 3 0.5 0.2 Diantomus 3 0.6 0.8 Daphnia longispina 5.8 4.7 5.1 Daphnia retrocurva 0.1 0.2 Sida g. 0.1 v.1 Bosmina longirostris 2.1 2.6 2.3 2.5 Blomass (mg. dry wt./1) 3.178 3.252 3.768 2.994 Phytoplankton and Zooplankton

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LACBWR Environmental Report Supplement - Section 5 ADDENDA Dose Estimates Based on 1972 Releases (ADDENDUM to Section 5.2.1)

The release of radionuclides in liquid and airborne effluents from the IACBWR in 1972 (shown in Tables 3.6-1 to 3.6 tt) have been used to estimate doses to man and to biota other than man via the pathways discussed in Section 5.2. The following Tables supplement the information contained in Tables 5.2-2,it, 5, 6, 7 and 8.* The estimated doses, in general, follow the trend in release rates.

They are lower than those based on July releases but higher than the estimates for the first half of 1972.

  • The following tables are not numbered consecutively, but ascending to the tables in the original report which they supplement. Table 5.2-S2 supplements Table 5.2-2 in the original renort, etc.

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Table 5.2-S4: Doses to the Population from LACBWR Liquid Releases in 1972 (man-rem /yr)

Whole Body Gastrointestinal Thyroid External - Pool No. 9:

Fishing (5000 people /yr) 3.16 (-3) NA* NA*

Internal - Pool No. 9:

Eating fish (20 g/ day) 5.41 (0) 5.41 (0) 4.18 (-1)

Internal - Davenport Drinking water 8.64 (-1) 1.64 (0) 2.56 (3)

Natural Background Population with 25-mile

! radius from the IACBWR 10,750 1

  • NA - Not Applicable

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Table 5.2-S6: Dose to Biota in the Mixing Zone (mrawyr)

External Internal fish 2.1 25.5 Primary Producers and Consumers 2.1 22.5 Table 5.2-S7: Calculated Maximum Hypothetical Individual Off-Site Dose Due to LACBWR Stack Releases (mrem /yr)

Noble Gases Infant thyroid dose Tiine Whole Body Beta Skin Particulate

  • Inhalation from drinking milk Period Dose Dose Inhalation of I-131 (nearest pasture) 1969 0.95 0.77 N.I.** 0*** 0 1970 0.95 0.77 N.I. 0 0 1971 0.85 0.57 N.I. 0 0 1972 11 7 . 2 23.5 7. 3 (-3) 1.9 223****

Based on particulate with half lives greater than eight days.

    • N.I. - Isotopes not identified.

No detectable quantities of Iodine were released during this period.

        • Daued on a 5-month grazing season. See also Section 5.2.tt Environmental Radiation Monitoring.

Note: figures in parentheses indicate exponentiation.

9 ,

e.

Table 5.2-S8 (Supplement)

Cumulative Population, Annual Gamma Man-Rem and Average Doses from the Gaseous Effluent Released from LACBWR in 1972 Cumulative Radius Cumulative Dose Average Dose (miles) Population (man-rem /yr) (mrem /yr) 1 liitt 1. 07 (-1) 7. Lt3 (-1)

~-

2 502 3.86(0) 7.69(0) 3 6711 tl . 20 (0) 6.23(0) tl 95ti it , tt7 (0) 14 . 6 9 ( 0 )

5 1,553 tl.79(0) 3.08(0) 10 6,832 6.95(0) 1.02(0) 15 23,509 1.05(1)  !! . (17 (-1) 20 88,258 2.05(1) 2. 3 2 (-1) 25 122,600 2.51(1) 2 . 05 (-1)

Natural Background 122,600 10.75(3) 8.77(1)

Note: Figures in parentheses indicate exponentiation

t . .

s- ,

Table 5.2-S9 Quarterly Dose Measurements in the LACBWR Vicinity Calculated from TLD Readings for 1972 Location 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter No. (net mrem) (net mrem) (net mrem) (net mrem)

Control 15.7 + 1.8 20.2 + 5.2 16.7 + 0.8 19.8 + 1.6 1 22.9 I 1.8 23.0 I ti.8 27.5 I 2.4 29.8 I 2.6 3 38.7 I 3.6 25.tt I 4.2 29.3 I 0.8 3tt.2 I 2.6 tt 19.7 I 1.8 15.8 I ti.2 19.3 I 1.6 21.8 I 1.6 5 22.7 I 2.6 20.2 I 1.0 23.7 I 2.2 29.0 I 2.1 6 21.1 I 3.0 22.2 I 4.2 27.9 I 1.0 28.0 I 3.2 7 17.3 I 1.it 16.2 I 1.8 21.5 I 1.t1 20.0 I 1.tt 8 18.7 I 2.2 21.tt I 2.2 31.1 I 3.0 25.2 I 2.6 9 23.3 I 1.tt 24.tt I ti.2 23.1 I 2.2 31.tt I 1.0 10 22.5 I 2.6 2tt . 6 I ti . 6 21.5 I 3.2 26.0 I 1.t1 11 20.9 I 1.8 17.6 I 1.6 25.9 I 2.6 28.8 I 2.6 12 19.1 I 1.6 26.6 I 2.6 26.9 I 1.0 27.0 I 2.0 13 22.1 I 3.2 2tt.0 I 1.6 26.9 I 1.8 29.8 I 3.8 Iti 2tl.5 I 3.6 22.0 I 4.8 30.5 I 2.0 29.4 I 2.2 -

15 22.3 I 3.8 30.2 I 1.8 32.5 I 3.2 30.0 I 2.0 16 211.5 I 0.8 18.0 I 0.8 24.9 I 3.4 25.6 I 1.0 17 21.5 I 1.6 29.0 I 2.6 21.3 I 1.6 26.6 I 1.0 18 i Lost - 21.0 I tt.0 26.5 I 2.tt 30.0 I 1.0 - -

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LACBWR Environmental Report Supplement - Section 5 ADDENDA Environmental Radiation Survey of the LACBWR (ADDENDUM to Section 5.2.3)

An environmental radiation survey of the LACBWR was per-formed on April 25-26, 1972 and August 9-11, 1972 to determine nonplume exposure rates within the site boundary due to plant operation. Measurements were made using a pressurized ionization chamber and a sodium iodide gamma spectrometer. The field technique consisted of measuring the total exposure rate with the pressurized ionization chamber at increasing distances from the plant, and obtaining gamma spectra at selected points to identify the contributory sources.

The net radiation level values were obtained by subtracting the contribution of background from the total exposure rate. The background exposure rate was determinen by several measurements in the plant vicinity beyond the influence of reactor-produced radiation, where the measured rates leveled off with increasing distance from the plant.

The net radiation levels attributed to the LACBWR were found to range from approximately 5 to 19 milliroentgen per year at the site boundary. Because the plume could have affected the measured exposure rates, especially in northerly directions from the stack, it is felt that the values represent the upper limits of the nonplume contribution to the site boundary exposure rate. It must be noted that instantaneous measurements were used to derive annual exposure estimates.

Radiation leveJs were measured at selected locations at the LACBWR facility on April 25-26, 1972. During this survey the plant was operating at 50 MWe with an average off-gas release rate of 613 uCi/sec. The radwaste storage held an accumulation of radioactive materials from the previous 18 months of operation. The plant site, the sampling points, and the exclusion radius of 1109 feet are shown in figure 5.2. Sit. The measurement locations were chosen to avoid plume radiation and were also limited by geographic constrictions imposed by the Mississippi River. From the figure it can be seen that the radiation levels rangcd from approximately 10 mR/yr at the exeiusion radius, to 150 mR/yr at 300 feet from the reactor building.

Later on August 9-11, 1972, a similar survey was conducted, but the conditions were different. During this survey the plant was operating at 50 MWe with an average off-gas release rate of 5,531 uCi/sec. In addition the radwaste storage had been emptied of its contents.

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LACBWR Environmental Report Supplement - Section 5 C. ADDENDA Environmental Radiation Monitoring (ADDENDUM to Section 5.2.4)

The results of the monitoring program for the second half of 1972 are summarized in the following supplementary tables. The TLD measurements for 1972 are sununarized in Table 5.2-S9*. Many of the off-site measurements were higher in 1972 than in 1971 with the largest difference, 28 mrem per year, occurring at location 12 due east of the LACBWR. This monitoring location is closest to that at which the maximum individual dose was predicted to occur. However, a "t" test of the paired quarterly measurements for 1971 and 1972 indicated no significant difference at the 0.05 significance level.

Measurements of I-131 in milk reported in Table 5.2-S12 from neighboring farms remained at less than detectable levels. If one assumes that an infant drinking one liter of milk containing 8.1 pCi per liter of I-131 per day an annual dose of 17 mrem would be received to the thyroid assuming this level persisted for the 5 months cows are on pasture. This assumption is considered to result in a conservative calculation. This value is also more than an order of magnitude less than the value calculated on the basis of release rates and meteorological data. While I-131 was below detection limits in milk, it was among the radionuclides detected in a grass sample taken at the Malin farm. As shown in Table 5.2-S12A, while specific radionuclides were identified at the Malin farm, they were all below detectable levels at the Pedretti farm. The results of the particulate monitoring program for 1972 are shown in Figure 5.2-S3.

The results of silt monitoring are shown in Table 5.2-S13.

Plant originated radionuclides were detected. The greatest number of radionuclides (six) and the highest activities were measured at the outfall. At the boat landing only Co-58, Co-60, and Fe-59 were detectable. Of the twelve samples collected along Transects A to D, shown in Figure 5.1-2, only those on Transect D contained detectable levels of identifiable radionuclides. At locations D-1 and D-9, Cs-134 was detected while at D-4, Co-57 was detected.

Fish were taken from Pools 8 and 9 on various dates from August through December. The results of analyses reported in Table 5.2-S14, show that one fish taken above the dam upstream of the plant in Pool 8 contained Co-58 and Co-60, I-131 and Mn-54. Two of the fish taken in Pool 9 were found to contain Co-58 in one case and Co-60 in the other. An individual deriving 20% of his minimum daily protein requirement, e.g. 50 grams, from fish containing radionuclides at the highest detectable levels would receive doses to the whole body, gastrointestinal tract and thyroid of 0.2, 17, and 14 mrem per year. As evidenced by the results of the monitoring program, l

activity levels this high are exceptional, since the assumed consumption is more than twice the national average. The calculated doses should be considered conservative estimates of the upper limits of the doses actually received by the individual from eating fish.

Determinations were made of the gross beta and gamma activity in river and rain water and are shown in Tables 5.2-S15 and 5.2-S16. The ranges of measured values fall within those previously reported during both the operational and preparational phases of the program.

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Collection Date Location Activity March 4 Dam #8 38.82 October 10 Malin Farm 17.56 November 7 Malin Farm 19.58 l

November 10 Crib llouse 5.85

-30

IACBWR Environmental Report Supplement - Section 11 C. ADDMDA Revised Tabulation of Costs and Benefits Re Alternative Radwaste Systems (ADDENDUM to Section 11.3)

The following Table 11.3-S1 presents revised dose data on costs and benefits for alternative radwaste systems based on operating experience through 1972.

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Incremental Plant With Environmental (A) Minimal Plant Operating Effects Units n Plant As s, Env. Impact License Request 1.5.1 Aquatle nu;ad/yr 25.5 3.8 Same as A Organisms 1.5.2 People, mrem /yr 0.68tt x 10-3 .102 x 10-3 Same as A External man-ren/yr 0.316 x 10-2 0.tt75 x 10-3 Same as A 1.5.3 People, mrenVyr 0.286 0.0tt2 Same as A Ingestion man-renv'yr 80.5 12. tt Same as A 3.3.1 People, meen/yr 71 7.1 Same as A External man-renVyr 25.1 2.5 Same as A 3.3.2 People mrenVyr 223 2.23 Same as A Ingestion man-ren/yr 62 0.62 Same as A 3.3.3 Plants mead /yr 1670 16.7 Same as A and Animals l

- 3 2-

l 1:1UlATA for LACBWR Environmental Report  :'

L Pane No. Errata Porward In Paragraph 3, the words " draft" and "and interim use" should be deleted and the date " March 1971" should be changed to " August 1972".

List of Tables Table 2.7-3 reads, "Plands", should be " Plants".

List of Tables Table 5.2-6 reads 'Hising", should be " Mixing".

Page 2-43 Paragraph 1 reads "No. 7, which is at Dresbach, Minnesota Lock and Dam"; should read "No. 7, which is at Dresbach, Minnesota".

Page 2-47 In Paragraph LF "(Table 2.2-16)" should read "(Table 2.2-15)".

Page 2-51 3 1n Paragraph 2, "fromtier" should read " frontier".

Page 2-59 In Paragraph 1, "The most serious earthquake recorder" should read "The most serious earthquake recorded".

Page 2-70 In Paragraph 1, "from the reactor site reactor site" should read "from the reactor site".

Page 2-79 In Paragraph 1, line 3, omit "the airport and".

Page 2-82 Percentage of calms shown in center of Figure 2.6-3 should read "14.8%".

Page 2-91 The last sentence should be changed to read: "The peregrine falcon is the only species known te occur in the vicinity of the IACBWR that appears on the list of endangered species given in Appendix D to 50CFR17".

Page 2-123A Reference (1) after " Collection Date" refers to the entire table.

Page 3-9 On Line 5,"per standard ton" should read "per metric ton".

Page 3-22 In Paragraph 3, delete "w" at the end of the third line.

Page 3-40 On Table 3.6-2, July 1972 release rate for I-131 should be changed from 0.0050 to 0.04 uCi/sec.

Page 3-51 Final paragraph should read: " Spent resins were shipped for the first ;1me in January of 1969 and again in the spring of 1972. The shipments consisted of about 100 cubic feet of resin. The shipments were made according to DOT regulations via a sole-use vehicle. These wastes are buried in the AEC approved site in Moorehead, Kentucky".

l l W l l14 l I Page No. Errata Page 3-53 Ileading of subsection 3.7.1 should read " Chemical Discharges".

Page 3-54 lleading of third column of Table 3.7-1 should read

" Discharge".

Page 5-3 Caption reads "to the left of the plant"; should read "to the right of the plant".

Page 5-4 In the last sentence, "The greatest number of fish (468 speciments)" should read "The greatest number of fish (408 specimens)".

Page 5-16 On Line 8, " radionuclides" should read " radionuclides".

Page 5-20 Note at bottom of table should read:

Dilution factor = flow rate at locatior.

flow rate at IACBWR outfall -

Page 5-30 Coltumi 6 reads " Infant Dose" should read " Infant "

Thyroid Dose".

Page 5-30 July 1972 Inhalation of I-131 reads "0.22" should read "0.29".

Page 5-30 July 1972 dose value in last column reads "81";

should read "61".

Page 5-31 On last line, " Table 5.2-8" should read " Table 5.2-7".

Page 5-32 Line 6, add a period after "value".

Pago 5-34 In Paragraph 2s Line 5, " Appendix B" should read

" Appendix A" . Last paragraph should read: "The estimated population dose to the thyroid from drinking milk, based on the 1972 average release rate, is 86 man-rem".  :

Page 5-36 Pirst paragraph, second sentence, should read: "The estima ted dose to a ecw's thyroid is 1.67 rads, based on the 1972 annual average releases and on the assump-tions specified in Section 5.2.2.3".

Page 5-39 In third column, "less than .053 + .023" should read

~

"less than 53 ,+ 23".

Page 5-46 Air particulate should read "B.iweekly" instead of

" Weekly".

Page 5-46 Milk reads "Bi-monthly" should read " Bimonthly during grazing season".

Page 5-53 In Paragraph 5, Line 5, " released from the fuel assembly",

should read " released from the shipping container".

i..

Page No. Errata Page 6-5 Paragraph. 2, ' last sentence concludes , "8.05 (-5) uCi/sec .

I-131", should read "8.10(-5) uCi/see I-131".

Page 6-5 In Paragraph ti, Line 1 after " Appendix D' and "10CFR50".

Page 6-6 In Table 6.3-1 for the~first item'in Class 3 Desorption of' Iodine.from Charcoal, the value in Co?.umn 1 is changed from 0.0005 to 0.001, and the value in Column 3.is changed from 0.03 to 0.09.

Page.6 ' Revise Section 6.5.1.1 to read the following:

Lines 1 and 2 eliminate "the.first 6 months of" Line 2 change 0.011 to 0.'22 Lines 3_and it change 0.t,:,4 to 0.0896 Line 5 change 90% to 99% and 0.003tf to 0.0099 Line 10 change 5.6 to 16.2 Page 8-2 In Paragraph 1, delete "nearly 10 years ago".

.Paga 8-3 In Paragraph 5, last sentence, "they could be as high as $1,000,000" should read "they could range from under $1,000,000 to over $5,000,000, depending upon the end product desired".

Page ll-2 In Paragraph 1, delete first four sentences and insert "Dairyland Power Cooperative intends to operate the 1ACBWR as a base load facility with an vltimate plant factor of 85%".

Page 11-13 Item 1.5.1 next-to-last column reads "33"; should read "3.3".

Page 11-lit Item 3.3.1 in next-to-last column, both items should be referenced 8.3.1. I Page 11-16 Under Item 1.3.3 " measured temperatures" should read

" measured temperature increments".

Page 11-20 In Paragraph 2, " Alternatives B and F" t.hould read

" Alternatives B and G".

Page 11-20 On Line 7, "only slightly from Alternative A" should read "from Alternative A only in calculated doses".

i

-3 5 -

_ _ _ _ _ _ _ _ _