Text

Part B - Monticello Nuclear Generating Plant 2001 Radioactive Effluent Release Report
	ML021430031
Person / Time
Site:	Monticello
Issue date:	05/15/2002
From:	Forbes J; Nuclear Management Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	Download: ML021430031 (135)
	v • d • e

MONTICELLO NUCLEAR GENERATING PLANT ODCM-06.01 TITLE: DOSE FROM ALL URANIUM FUEL CYCLE Revision 1*

SOURCES Page 1 of 4 OFFSITE DOSE CALCULATION MANUAL - TABLE OF CONTENTS SECTION PAGE 1.0 RECORD OF REVISION ............................................... 2 2.0 DOSE FROM ALL URANIUM FUEL CYCLE SOURCES .................... 3 2.1 Dose Com m itment .............................................. 3 2 .2 Bases ......................................................... 4 Prepared By:'

Reviewed By:

OC Final Review Meetir*:: ; q Date: . )r" Approved By Plant Manager:

This is a major rewrite, therefore,/no sidelines are required.

tDate: % ;/;/ J 13087 (DOCUMENT CHANGE, HOLD, AND COMMENT FORM) incorpr ated: A 9 - 5 W IResp Supv: CHEM IlAssoc Ref CHEM-I I ~I IR: N I Frecr vrsl ARMS: ODCM-06.01 Doc Type: 7030 1Admin Initials: J41Date;ý,ýJ~

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-06.01 TITLE: DOSE FROM ALL URANIUM FUEL CYCLE Revision 1*

I SOURCES Page 2 of 4 1.0 RECORD OF REVISION Revision No. Date Reason for Revision 1 October - 2000 Moved previous ODCM-04.01 (INFORMATION RELATED TO 40CFR1 90 and 40CFR141) into this document, changed the title to "DOSE FROM ALL URANIUM FUEL CYCLE SOURCES" and incorporated Tech Specs section 3.8.D and 4.8.D into document.

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MONTICELLO NUCLEAR GENERATING PLANT 0DCM-06.01 TITLE: ' DOSE FROM ALL URANIUM FUEL CYCLE Revision 1*

SOURCES Page 3 of 4 2.0 DOSE FROM ALL URANIUM FUEL CYCLE SOURCES 2.1 Dose Commitment 2.1.1 Controls A. In accordance with T.S.6.8.D.1 0, the dose or dose commitment to any member of the public from all uranium fuel cycle sources is limited to less than or equal to 25 mrem to the total body or any organ, except for the thyroid, which SHALL be limited to less than or equal to 75 mrem over a period of 12 consecutive months.

2.1.2 Applicability At all times 2.1.3 Action A. With the calculated dose from the release of radioactive materials in liquid or gaseous effluents exceeding twice the limits of Controls ODCM-02.01 Section 2.2.1, ODCM-03.01 Section 2.2.1 or ODCM-03.01 Section 2.3.1, prepare and submit within 30 days a special report to the Commission which includes the following:

1. Defines corrective actions and calculates the highest radiation exposure to any member of the general public from all uranium fuel cycle sources (including all effluent pathways and direct radiation).

2. Unless this report shows that exposures are less than the 40CFR Part 190 standard, either apply to the Commission for a variance to continue releases which exceed the 40CFR Part 190 standard or reduce subsequent releases to permit the standard to be met.

2.1.4 Surveillance Requirements A. Cumulative dose contributions from all liquid and gaseous effluents SHALL be determined in accordance with surveillance requirements ODCM-02.01 Section 2.2.4, ODCM-03.01 Section 2.2.4, and ODCM-03.01 Section 2.3.4 and in accordance with the ODCM.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-06.01 TITLE: DOSE FROM ALL URANIUM FUEL CYCLE Revision 1*

SOURCES Page 4 of 4 2.2 Bases 2.2.1 Dose From All Uranium Fuel Cycle Sources A. Dose Commitment Control 2.1.1 .A. is provided to meet the dose limitations of 40CFR190. The specification requires the preparation and submittal of a special report whenever the calculated doses from plant radioactive effluents exceed twice the design objective doses of Appendix I. Submittal of the report is considered a timely request and a variance is granted until Staff action on the request is complete. For sites containing up to 4 reactors, it is highly unlikely that the resultant dose to a real individual will exceed 40CFR1 90 if the individual reactors remain with the reporting requirement level. For the purpose of the special report it may be assumed that the dose commitment to the real individual from other uranium fuel cycle source is negligible, with the exception that dose contributions from other nuclear fuel cycle facilities at the same site or within a radius of 5 miles must be considered.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 1 of 24I OFFSITE DOSE CALCULATION MANUAL - TABLE OF CONTENTS SECTION PAGE 1.0 RECORD OF REVISION ............................................... 2 2.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ......... 3 2.1 Monitoring Program .............................................

3 2.2 Land Use Census ............................................... 5 2.3 S am pling ....................................................... 6 2.4 Interlaboratory Comparison Program .............................. 7 2 .5 Bases ......................................................... 8 Figure 1 Radiation Environmental Monitoring Program Sampling Locations .....

9 Figure 2 4 - 5 Mile Ring, Control and Special Interest TLD Locations ........... 10 Figure 3 Site Boundary TLD Locations ..................................... 11 Table 1 Monticello Nuclear Generating Plant Radiological Environmental Monitoring Program Sample Collection and Analysis ................. 12 Table 2 Reporting Levels for Radioactivity Concentrations in Environmental Samples (Reporting Levels) ......................................

17 Table 3 Maximum Values for the Lower Limits of Detection (LLD)a,e ...........

18 Table 4 Monticello Nuclear Generating Plant Radiological Environmental Monitoring Program Sampling Locations ........................... 20 Prepared By: _ .D:/

Reviewed By:( / *_

OC Final Review Meeting'* Date:

Approved By Plant Manager: / . Date: / 7 3087 Supv:

(DOCUMENT aesp CHEM CHANGE, HOLD, AND COMMENT IAssoc Ref: FORM) CHEM-I incorporated: ,/d

('S;N lFreq: 2 lys/

,ARMS: ODCM-07.01 IDoc Typ-e: 7030 IAdminlInitials: Dae 1vi

%/* ')

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 2 of 24 1.0 RECORD OF REVISION Revision No. Date Reason for Revision 1 October - 2000 Moved previous ODCM-05.01 (RADIATION ENVIRONMENTAL MONITORING PROGRAM) into this document, changed the title to "RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM" and incorporated Tech Spec section 4.16 "Radiation Environmental Monitoring Program" into this document.

2 November - 2001 Deleted incorrect reference in section 2.1.3.C. I I/plr

TMONTICELLO NUCLEAR GENERATING PLANT ITITLE: RADIOLOGICAL ENVIRONMENTAL ODCM-07.01 Revision 2 MONITORING PROGRAM Page 3 of 24 2.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2.1 Monitoring Program 2.1.1 Controls A. In accordance with T.S.6.8.A, the Radiological Environmental Monitoring Program (REMP) SHALL be conducted as specified in Table 1.

B. Radioanalysis SHALL be conducted meeting the requirements of Table 3.

2.1.2 Applicability At all times.

2.1.3 Action A. Whenever the Radiological Environmental Monitoring Program is not being conducted as specified in Table 1 the Annual Radiological Environmental Operating Report SHALL include a description of the reasons for not conducting the program as required and plans for preventing a recurrence.

B. Deviations are permitted from the required sampling schedule if samples are unobtainable due to hazardous conditions, seasonable unavailability, or to malfunctions of automatic sampling equipment. Ifthe latter occurs, every effort SHALL be made to complete corrective action prior to the end of the next sampling period.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 4 of 24 C. With the level of radioactivity in an environmental sampling medium exceeding the reporting levels of Table 2 when averaged over any calendar quarter, submit a special report to the Commission within 30 days from the end of the affected calendar quarter. When more than one of the radionuclides in Table 2 are detected inthe sampling medium, this report SHALL be submitted if:

concentration (1) concentration (2)

+

+--------- -------------- +... >1.0 limit level (1) limit level (2)

When radionuclides other than those in Table 2 are detected and are the result of plant effluents, this report SHALL be submitted the potential annual dose to an individual is equal to or greater if than the calendar year limits of ODCM-02.01 Control 1.2.1 .A, ODC-M-03.01 Control 1.2.1 .A, or ODCM-03.01 Control 1.3.1 .A.

This report is not required ifthe measured level of radioactivity was not the result of plant effluents; however, in such an event, the condition SHALL be reported and described in the Annual Radiological Environmental Operating Report.

D. Although deviations from the sampling schedule are permitted under Paragraph B. above, whenever milk or leafy vegetation samples can no longer be obtained fromgreen the designated sample locations required by Table 1, the Annual Radiological Environmental Operating Report SHALL explain why the samples can no longer be obtained and identify the new locations which have been or will be added to and deleted from the monitoring program.

2.1.4 Surveillance Requirements The radiological environmental monitoring samples SHALL be collected pursuant to Table 1 from the specific locations in Table 4 and SHALL be analyzed pursuant to the requirements of Table 1 and the detection capabilities required by Table 3.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 5 of 24 2.2 Land Use Census 2.2.1 Controls A Land Use Census SHALL be conducted and SHALL identify:

A. The location of the nearest milk animal, the nearest residence, and the nearest garden of greater than 500 ft2 producing fresh leafy vegetables in each of the 16 meteorological sectors within a distance of 5 miles.

B. The location of ALL milk animals and ALL 500 ft 2 or greater gardens producing broad leaf vegetation in each of the meteorological sectors within a distance of 3 miles.

2.2.2 Applicability At all times.

2.2.3 Action A. With a Land Use Census identifying a location which yields a calculated dose or dose commitment (via the same exposure pathway) 20 percent greater than at a location from which samples are currently being obtained in accordance with Controls 2.1.1 .A., the Annual Radioactive Effluent Release Report for this period SHALL identify the new location. The new location SHALL be added to the Radiological Environmental Monitoring Program within 30 days. The sampling location, excluding the control station location, having the lowest calculated dose or dose commitment (via the same exposure pathway) may be deleted from this monitoring program after October 31 of the year in which this Land Use Census was conducted.

2.2.4 Surveillance Requirements A. The Land Use Census SHALL be conducted at least once per year between the dates of May 1 and October 31 by door to door survey, aerial survey, or by consulting local agricultural authorities associations.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 6 of 24 2.3 Sampling Table 1 and Figure 1 specify the current sampling locations for the radiation environmental monitoring program. These sampling locations are based on the latest land use census.

If it is learned from an annual census that milk animals or gardens are present at the location which yields a calculated thyroid dose greater than those locations previously sampled, the new milk animal or garden locations resulting in the higher calculated doses SHALL be added to the surveillance program as soon as practicable. Sample locations (except the control) having lower calculated doses may be dropped from the program at the end of the grazing or growing season (October 31) to keep the total number of sample locations constant.

Ifthe plant begins routine discharges of liquid radioactive effluent into the Mississippi River, a land use survey will be conducted to determine whether any crops are irrigated with water taken from the Mississippi River between the plant discharge canal and a point 5 miles downstream. Ifedible crops are being irrigated from Mississippi River water, appropriate samples will be collected and analyzed per Table 1.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 7 of 24 2.4 Interlaboratory Comparison Program 2.4.1 Controls A. Analyses SHALL be performed on radioactive materials supplied as part of an NRC approved cross-check program. This program involves the analyses of samples provided by a control laboratory and comparison of results with those of the control laboratory as well as with other laboratories which receive portions of the same samples. Media used in this program (air, milk, water, etc.) SHALL be limited to those found in the Radiological Environmental Monitoring Program.

2.4.2 Applicability At all times.

2.4.3 Action A. When required analyses are not performed, corrective action SHALL be reported in the Annual Radiological Environmental Operating Report.

2.4.4 Surveillance Requirements A. The summary results of analyses performed as part of the above required program SHALL be included in the Annual Radiological Environmental Operating Report.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 8 of 24 2.5 Bases 2.5.1 Monitoring Program Control 2.1.1 provides measurements of radiation and radioactive materials in those exposure pathways and for those radionuclides which lead to the highest potential radiation exposures of individuals resulting from the plant operation. This program thereby supplements the radiological effluent monitoring by verifying that the measurable concentrations of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and modeling of the environmental exposure pathways. After a specific program has been in effect for at least 3 years of operation, program changes may be initiated based on this experience.

The detection capabilities required by Table 1 are state-of-the art for routine environmental measurements in industrial laboratories. The LLDs for drinking water meet the requirement of 40CFR Part 141.

2.5.2 Land Use Census Control 2.2.1 is provided to ensure that changes in the use of off-site areas are identified and that modifications to the monitoring program are made if required by the results of this census. The best survey information from door-to-door, aerial or consulting with local agricultural authorities SHALL be used. This census satisfies the requirements of Section IV.B.3 of Appendix I to 10CFR Part 50. Restricting the census to gardens of greater than 500 square feet provides assurance that significant exposure pathways via leafy vegetables will be identified and monitored since a garden of this size is the minimum required to produce the quantity (26 kg/year) of leafy vegetables assumed in Regulatory Guide 1.109 for consumption by a child. To determine this minimum garden size, the following assumptions were used: 1) that 20% of the garden was used for growing broad leaf vegetation (i.e.,

similar to lettuce and cabbage), and 2) a vegetation yield of 2 kg/square meter.

2.5.3 Sampling Section 2.3, paragraph 3, is worded to conform to LAR-39 and its associated NRC Safety Evaluation (SER).

2.5.4 Interlaboratory Comparison Program The requirement for participation in an interlaboratory comparison program is provided to ensure that independent checks on the precision and accuracy of the measurements of radioactive material in environmental sample matrices are performed as part of a quality assurance program for environmental monitoring in order to demonstrate that the results are reasonably valid.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 1 MONITORING PROGRAM Page 9 of 24 Figure 1 Radiation Environmental Monitoring Program Sampling Locations c'J 0

C.,

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 RADIOLOGICAL ENVIRONMENTAL Revision 2 TITLE:

MONITORING PROGRAM PacQe 10 of 24 I

Figure 2 4 - 5 Mile Ring, Control and Special Interest TLD Locations C3 0

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II IMONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 7 MONITORING PROGRAM Page 11 of 24 PL4NT GENERATING NUCLE4R Figure 3 Site Boundary TLD Locations rMONTICELLO L0 I/pIr

"Z5 V

0.

CD -I Z

i-w 0

0 In.

Exposure Pathway Number of Samples Sampling and 0 Collection Frequency Type and Frequency CD and/or Sample and Sample Locations' 8 Collctin Frciuncvof Analysis z 0

1. Airborne Radioiodine &

Particulates Samples from 5 locations:

3 samples from offsite locations Continuous Sampler operation with sample Radioiodine analysis Weekly for 1-131 CD

$1) 0 z

0 r

(in different sectors) of the collection weekly. 0 0 0 highest calculated annual Cn=D Particulate: 0 CD average ground level D/Q, 1 Gross beta activity z) sample from the vicinity of a on each filter community having the highest weekly*. Analysis 0_0 M Zi calculated annual average SHALL be per 0 ::3 0

z hq ground-level D/Q, and 1 sample formed more than Vo.

CD :

from a control location specified 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following 0 r in Table 4. filter change. 0 Z) z Perform gamma C) isotopic analysis E on composite (by mo M

00 location) sample I quarterly.

2. Direct 40 TLD stations established with Quarterly Radiation Gamma Dose OL0 duplicate dosimeters placed at quarterly Co the following locations:****

M CDI 0

If gross beta activity in any indication sample exceeds 10 times the yearly average of the control sample, a >0 Co gamma isotopic analysis is required. CD 0f. C)

Sample locations are further described in Table 4. Fn2

- - - Three control TLD locations have only one dosimeter. 2. -L "Co Co3 I

-77 V

0) =7 Exposure Pathway Number of Samples Sampling and Type and Frequency and/or Sample and Sample Locations** Collection Frequency of Analysis 0 0

CD

2. Direct Radiation (cont'd)

1. Using the 16 meterological wind zC sectors as guidelines, an inner 0

ring of stations in the general area of the site boundary is CO" 0I) 0 0 established and an outer ring of 3m z stations at 4 to 5 mile distance 2CD =i from the plant site is 0 rn0 established. Because of inaccessibility, two sectors in z

the inner ring are not covered. 0

2. Ten dosimeters are 0 z established at special interest areas and four control stations. 1WCO 0

3. Waterborne

"'3 z

a. Surface Upstream & downstream Monthly composite of Gamma Isotopic 0I locations. weekly samples (water analysis of each >0 I

& ice conditions monthly composite 0 permitting) -o Tritium analysis of 0 ED quarterly 5.

tO0 zi composites of monthly composites 5.

CD 0

- Sample locations are further described in Table 4.

CD

_.L 0 CA)0 0 0'4 0

0 (0

-3 mmmimmniý

"V

.m 0

Exposure Pathway Number of Samples Sampling and Type and Frequency Collection Frequency of Analysis CZ, and/or Sample and Sample Locations** 0-0 CD 0

z 0

3. Waterborne (cont'd) 3c Q)

b. Ground Three samples from wells within Quarterly Gamma Isotopic 0 0 and tritium analyses "a-j.

5 miles of the plant site and one CD zi of each sample sample from a well greater than 10 miles from the plant site.

"-0. z Monthly composite of 1-131 Analysis and

c. Drinking One sample from the City of t0 Gross beta and Minneapolis water supply. weekly samples Gamma isotopic CD 0 0 analysis of each monthly composite z Tritium analysis of z 0

EI quarterly CD 0

6.-'

composites of =0 monthly composites "0

3 Semiannually Gamma isotopic

d. Sediment from One sample upstream of plant, analysis of each Shoreline one sample downstream of sample 0 plant, and one sample from shoreline of recreational area. 0 0< (0 0

- Sample locations are further described in Table 4. 1Wo

0. -Pb ro o 6L4 WMAEMJ

V o

m0 CD P0 0

z Exposure Pathway Number of Samples Sampling and rn and/or Sample and Sample Locations** Type and Frequency C Z Collection Frenuencv A"Ca a0 C/)

W cD G) 0 0 0r 3

z

4. Ingestion -2CD= C

a. Milk One sample from dairy farm Monthly or biweekly if 0 0 Gamma isotopic and having highest D/Q, one sample from each of three dairy farms animals are on 1-131 analysis of 0.: z pasture each sample I-7 (if available) calculated to have z doses from 1-131 >1 mrem/yrand I one sample from 10-20 miles. >-"

0 D) 0

b. Fish and Invertebrates One sample of one game specie Samples collected Gamma isotopic z of fish located upstream and semi-annually C) downstream of the plant site. analysis on each sample (edible CD z

One sample of Invertebrates portion only on upstream and downstream of the fish).

C,-t plant site. ~rn 0

=Co 00 D

Sample locations are further described in Table 4.

CD~

Co< Co to CD 0-0~

3CD 0

-N 0

2 L.J.

-a CD"

-I 0~ I-r-In 0

C)

-L 0

"CD 0_

0 0Q Exposure Pathway Number of Samples Sampling and C/)

and Sample Locations** Type and Frequency and/or Sample ,4 A Ih*;

nflnInrtinn Pron ",onr~. iAnl,~ _z0 Z CD

)CD

4. Ingestion (cont'd) 0 _i

c. Food Products One sample of corn and At time of harvest Gamma isotopic potatoes from any area that analysis of edible 0 is irrigated by water in which portion of each CD rz liquid radioactive effluent has sample been discharged.***

-a 0 One sample of broad leaf At time of harvest 1-131 analysis 0 3 z -I vegetation from highest D/Q of edible portion garden and one sample from M of each sample 10-20 miles. CDz I

Sample locations are further described by in Table 4. CD0

- As determined by methods outlined in section 2.3.

0 0 0

30 CD° cL) o) 0 0

-9 I-#.

0 Co 39

V

-t

-I (D

CD Water Airborne Particulate Fish Milk Vegetables Analyis (pCi/1) or Gas (pCi/m 3 ) (pCi/kg, wet) (pCi/1) (pCi/kg, wet)

H-3 2 x 104(a)

CD Mn-54 1 x 103 3 x 104 (0 0 z

Fe-59 4 x 10 2 1 x 104 CL CD Co-58 1 x 103 3 x 104 0Z 0 0

Co-60 3 x 102 1 x 104 C.)

CD =3 z

<0.

Zn-65 3 x10 2 2 x10 4 CD C z Zr-Nb-95 4 x 1 0 2(b)

<0 CDr CDC

-4 1-131 (c) 0.9 3 1 x 102 2

0 M Cs-134 30 10 1 x 10 3 60 1 x 10 3 0, CD D 2 x 10 3 0

Cs-137 50 20 70 2 x 10 3 C) 0, 0 5 Ba-La-1 40 2 x 10 2(b) 3x 1 0 2(b) 3 0 CO a - For drinking water samples b - Total for parent and daughter c - If no drinking water pathways exist, a value of 20 pCi/I may be used.

VI 0

-I 0

I 0

C" 0

I I.-.

0 Water Airborne Particulate Fish Milk Food Products Sediment 0 (pCi/1) or Gas (pCi/m 3 ) (pCi/kg, wet) (pCi/1) (pCi/kg, wet) (pCi/kg, dry) 3 0 Analysis C fli 3

gross beta 0 1 x 10-2 z "0

CD r C) cn 3H 200 0 (1000b) z 5 4 mn 130 0

-o 15 0

0 z -I 59 Fe 30 260 CD C z

58, 60Co 15 130 -I ff I-" r-6 5Zn 30 260 r

CD 9 5 Zr-Nb 15c 3 a-4 131 d lb 7 x 10-2 1 60 Co CD 0 CD 6 0

150 0, 134 , 1 3 7 Cs 1 5 (lob), 1 8 1 X 10-2 130 15 60 0

0L 1 4 0 Ba-La 15c 15c wmwmhmmmfiý

TABLE NOTATION a- The LLD is the smallest concentration of radioactive material in a sample that will be detected with 95% CD probability with 5% probability of falsely concluding that a blank observation represents a "real" signal.

For a particular measurement system (which may include radiochemical separation):

LLD= E.- 4 66 EVV.- 2.22.Y.s e-xp(--, A-t) t 3 O0 where: 5 zu LLD is the apriori lower limit of detection as defined above (as picocurie per unit mass or volume),

- Ii Sb is the standard deviation of the background appropriate (as counts per minute). Typical values counting rate or of the counting rate of a blank sample as of E, V, Y and At SHALL be used in the calculations. Cn 0 I*

E is the counting efficiency (as counts per transformation) ,-

V is the sample size (in units of mass or volume) -,

CD Z 2.22 is the number of transformations per minute per picocurie Y is the fraction radiochemical yield (when applicable) "

X is the radioactive decay constant for the particular radionuclide C O01 r- Z Z A t is the elapsed time between sample collection (or end the sample collection period) and time of counting 3 >

CoZ b- LLD for drinking water. 0 c- Total for parent and daughter E

d- These LLDs apply only where "1-131 analysis" is specified.

e- Where "Gamma Isotopic Analysis" is specified, the LLD specifications CD radionuclides: H-3, Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-Nb-95, Os-134, applies to the and following Cs-137 Ba-La-140. o and reported.

Other peaks whichHare M Fe5. and identifiable, together with the measurable above nuclides SHALLa be identified 0 S CD C)-~0 oD C 0:

(0.

MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 I MONITORING PROGRAM Page 20 of 24 Table 4 Monticello Nuclear Generating Plant Radiological Environmental Monitoring Program Sampling Locations Location Distance Compass Type of Sample Code Collection Site Miles Heading Sector River water M-8c Upstream of plant w/in 1000 ft upstream of plant intake w/in 1000 ft downstream of plant River water M-9 Downstream of plant discharge Drinking water M-1 4 City of Minneapolis 37.0 132 SE Well water M-10c Goenner Farm 12.4 322 NW Well water M-11 City of Monticello 3.4 126 SE Well water M-12 Plant Well No. 11 0.2 232 SW Well water M-27 Wise Residence 0.6 198 SSW Sediment-River M-8c Upstream of plant w/in 1000 ft upstream of plant intake w/in 1000 ft downstream of plant Sediment-River M-9 Downstream of plant discharge Sediment Shoreline M-15 Montissippi Park 1.4 114 ESE Periphyton or M-8c Upstream of plant w/in 1000 ft upstream of plant intake Macroinver M-9 Downstream of plant w/in 1000 ft downstream of plant tebrates discharge Fish M-8c Upstream of plant w/in 1000 ft upstream of plant intake w/in 1000 ft downstream of plant Fish M-9 Downstream of plant discharge Milk M-1Oc Goenner Farm 12.4 322 NW Milk M-24 Weinand Farm 4.8 178 S Milk M-28 Hoglund Farm 3.6 300 WNW I/pIr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MOIORN PRGAIae2 f2 Table 4 Monticello Nuclear Generating Plant Radiological Environmental Monitoring Program Sampling Locations (cont'd)

Location Distance Compass Type of Sample Code Collection Site Miles Heading Sector Cultivated crops (leafy green vegetables)

a. a. Available Producer >10.0 a. a.

M-27 Highest D/Q Garden 0.6 198 SSW (corn)*

(potatoes)*

Particulates and Radio-iodine (air) M-lc Air Station M-1 11.0 307 NW (air) M-2 Air Station M-2 0.9 137 SE (air) M-3 Air Station M-3 0.7 104 ESE (air) M-4 Air Station M-4 0.9 146 SSE (air) M-5 Air Station M-5 2.7 134 SE Direct Radiation - (general area of the site boundary)

(TLD) M01A Sherburne Ave. So. 0.7 1 N (TLD) M02A Sherburne Ave. So. 0.8 31 NNE (TLD) M03A Sherburne Ave. So. 1.3 55 NE (TLD) M04A Biology Station Rd. 0.6 91 E (TLD) M05A Biology Station Rd. 0.6 118 ESE (TLD) M06A Biology Station Rd. 0.7 130 SE (TLD) M07A County Road 75 0.6 148 SSE (TLD) M08A County Road 75 0.6 170 S (TLD) M09A County Road 75 0.6 192 SSW (TLD) M10A County Road 75 0.5 218 SW (TLD) M11A County Road 75 0.4 240 WSW (TLD) M12A County Road 75 0.4 260 W (TLD) M13A North Boundary Rd. 0.8 324 NW

Collected only if plant discharges radioactive effluent into the river, then only from river irrigated fields. (See Section 2.1)

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 22 of 24 Table 4 Monticello Nuclear Generating Plant Radiological Environmental Monitoring Program Sampling Locations (cont'd)

Location Distance Compass Type of Sample Code Collection Site Miles Heading Sector

-. . ... - . -- t~r I . klkllAI (TLD) M14A North Boundary al. U. I %5fU I'*4lmVV Direct Radiation - (about 4 to 5 miles distant from the plant)

(TLD) M01 B Sherco No. 1 Air Sta. 4.6 3 N 20 NNE (TLD) M02B County Road 11 4.4 53 NE (TLD) M03B County Rd. 73 & 81 4.3 68 ENE (TLD) M04B County Rd. 73 (196n 4.3 Street)

(TLD) M05B City of Big Lake 4.4 90 E 4.4 117 ESE (TLD) M06B County Rd 14 &

196th Street 4.4 136 SE (TLD) M07B Monte Industrial Dr.

161 SSE (TLD) M08B Residence Hwy 25 & 4.7 Davidson Ave (TLD) M09B Weinand Farm 4.8 178 S 204 SSW (TLD) M10B Reisewitz Farm - 4.2 Acacia Ave (TLD) M11B Vanlith Farm - 97th 4.0 226 SW Ave (TLD) M12B Lake Maria St. Park 4.2 254 WSW 4.0 270 W (TLD) M13B Bridgewater Sta.

289 WNW (TLD) M14B Anderson Res. - Cty 4.3 Rd 111 (TLD) M15B Red Oak Wild Bird 4.3 309 NW Farm 4.3 341 NNW (TLD) M1 6B Sand Plain Research Farm Direct Radiation (special interest locations)

(TLD) M01S Osowski Fun Market 0.6 234 SW Edgar Klucas Res. 1.1 143 SE (TLD) M02S Big Oaks Park 1.6 102 ESE (TLD) M03S Pinewood School 2.4 129 SE (TLD) M04S I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 23 of 24 Location Distance Compass Type of Sample Code Collection Site Miles Heading Sector (TLD) M05S Rivercrest Christian 3.1 118 ESE Academy (TLD) M06S Monte Public Works 2.7 134 SE (TLD) M01 C Kirchenbauer Farm 11.5 323 NW (TLD) M02C Cty Rd 4 &15 11.2 47 NE (TLD) M03C Cty Rd 19 &Jason Ave 13.0 100 E (TLD) M04C Maple Lake Water Tower 10.3 226 SW I/pIr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-07.01 TITLE: RADIOLOGICAL ENVIRONMENTAL Revision 2 MONITORING PROGRAM Page 24 of 24 Table 4 Monticello Nuclear Generating Plant Radiological Environmental Monitoring Program Sampling Locations (cont'd)

Notes on Table 4:

"c" denotes control locations. All other locations are indicator locations.

a. Control "leafy green" vegetable will be taken in locations as available outside 10 mi.

EPZ.

The letters after TLD code numbers have the following meanings:

A Locations in the general area of the site boundary; B Locations about 4 to 5 miles distant from the plant; S Special interest locations.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 TITLE: REPORTING REQUIREMENTS Revision 1*

IPage 1 of 7 OFFSITE DOSE CALCULATION MANUAL - TABLE OF CONTENTS SECTION PAGE 1.0 RECORD OF REVISION ............................................... 2 2.0 REPORTING REQUIREMENTS ......................................... 3 2.1 Radioactive Effluent Release Report ............................... 3 2.2 Radiological Environmental Operating Report ....................... 4 2.3 Annual Summary of Meteorological Data ........................... 6 2.4 Record Retention ............................................... 7 Prepared By:

Reviewed By: * .

OC Final Review Meeting: \

Date: .

Approved By Plant Manager: Date:

This is a major rewrite, therefor?, no sidelines are required.

3087 (DOCUMENT CHANGE, HOLD, AND COMMENT FORM) incorporated e - o235o Resp Supv: CHEM Assoc Ref: CHEM-I SR: N Freq: vrs)

ARMS: ODCM-08.01 Doc Type: 7030 1Admin Inials: Date' ý/ K1 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 TITLE: REPORTING REQUIREMENTS Revision 1*

Page 2 of 7 1.0 RECORD OF REVISION Revision No. Date Reason for Revision 2 October - 2000 Moved previous ODCM-08.01 contents to ODCM-APP-B, Rev 0. Changed this section name to "REPORTING REQUIREMENTS" and incorporated applicable sections of T.S. sections 6.6.A, 6.6.B, 6.7.A.4, 6.7.A.5, and 6.7.C into this document.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 "ITITLE: REPORTING REQUIREMENTS Revision 1*

EPage 3 of 7 2.0 REPORTING REQUIREMENTS 2.1 Radioactive Effluent Release Report In accordance with T.S. 6.7.A.4 the Radioactive Effluent Release Report covering the operation of the unit SHALL be submitted in accordance with 10CFR 50.36A.

2.1.1 The Radioactive Effluent Release Report covering the operation of the unit during the previous calendar year SHALL be submitted prior to May 15 of each calendar year.

2.1.2 The Radioactive Effluent Release Report SHALL include a summary of the quantities of radioactive liquid and gaseous effluents and solid waste released as outlined in Appendix B of Regulatory Guide 1.21, Revision 1, June, 1974, with the data summarized on a quarterly basis.

In the event that some results are not available for inclusion report, the report SHALL be submitted noting and explainingwith the the reasons for the missing results. The missing data SHALL be submitted as soon as possible in a supplementary report.

2.1.3 The Radioactive Effluent Release Report SHALL include an assessment of the radiation doses from radioactive effluents released from the unit during the previous calendar year. This report SHALL also include an assessment of the radiation doses from radioactive liquid and gaseous effluents to the individuals due to their activities inside the site boundary (ODCM-02.01 Figure 1 and ODCM-03.01 Figure 1) during the report period. All assumptions used in making these assessments (i.e., specific activity, exposure time and location)

SHALL be included in the reports. The assessment radiation doses SHALL be performed in accordance with the ODCM of or standard NRC computer codes.

2.1.4 The Radioactive Effluent Release Report SHALL also include an assessment of radiation doses to the most likely exposed the public from reactor releases and other nearby uraniummemberfuel cycle of sources (including doses from primary effluent pathways and direct radiation) for the previous 12 consecutive months to show compliance with 400FR1 90, Environmental Radiation Protection Standards for Nuclear Power Operation.

2.1.5 The Radioactive Effluent Release Report SHALL include the following information for solid waste shipped off-site during the report period.

A. Container volume B. Total curie quantity (specify whether determined by measurements or estimate),

C. Principal radionuclides (specify whether determined by measurement or estimate),

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 TITLE: REPORTING REQUIREMENTS Revision 1*

Page 4 of 7 D. Type of waste (e.g., spent resin, compacted dry waste),

E. Type of container (e.g., LSA, Type A, Type B, Large Quantity),

and F. Solidification agent (e.g., cement, urea formaldehyde).

2.1.6 The Radioactive Effluent Release Report SHALL include unplanned releases from the site of radioactive materials in gaseous and liquid effluents on a quarterly basis.

2.1.7 The Radioactive Effluent Release Report SHALL include a description of changes to the PCP.

2.1.8 The Radioactive Effluent Release Report SHALL contain a report of when milk or leafy green vegetable samples specified in ODCM-07.01 Table 1 cannot be obtained from the designated sample locations, and identify the new locations added to and deleted from the monitoring program.

2.1.9 The Radioactive Effluent Release Report SHALL identify Land Use Census identified locations which yield a calculated dose or dose commitment (via the same exposure pathway) 20 percent greater than at a location from which samples are currently being obtained in accordance with ODCM-07.01 Control 2.1.1.

2.2 Radiological Environmental Operating Report In accordance with T.S.6.7.C.1, the Radiological Environmental Operating Report covering the operation of the off-site monitoring program SHALL be submitted and SHALL include:

2.2.1 The Annual Radiological Environmental Operating Report covering the operation of the site during the previous calendar year submitted by May 15 of each year. The report SHALL SHALL include be summaries, interpretations, and analyses of trends of the results of the Radiological Environmental Monitoring Program for the reporting period.

The material provided SHALL be consistent with the objectives outlined in the Offsite Dose Cclculation Manual (ODCM), and in 10CFR50, Appendix I, Sections IV.B.2, IV.B.3, and IV.C.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 TITLE: REPORTING REQUIREMENTS Revision 1*

Page 5 of 7 2.2.2 The Annual Radiological Environmental Operating Report SHALL include the results of analyses of all radiological environmental samples and of all environmental radiation measurements taken during the period pursuant to the locations specified in the table and figures in the ODCM, as well as summarized and tabulated results of these analyses and measurements in the format of the table in the Radiological Assessment Branch Technical Position, Revision 1, November 1979. In the event that some individual results are not available for inclusion with the report, the report SHALL be submitted noting and explaining the reasons for the missing results. The missing data SHALL be submitted in a supplementary report as soon as possible.

2.2.3 The report SHALL also include the results of the land use census required by ODCM-07.01 Control 2.2.1. If harmful effects or evidence of irreversible damage are detected by the monitoring, the report SHALL provide an analysis of the problem and a planned course of action to alleviate the problem.

2.2.4 The Radiological Environmental Operating Report SHALL include the following: a summary description of the Radiological Environmental Monitoring Program; a map of sampling locations keyed to a table giving distances and directions from the reactor; and the results of licensee participation in the Interlaboratory Comparison Program, required by ODCM-07.01 Control 2.4.1 .A.

2.2.5 The Radiological Environmental Operating Report SHALL include reasons for all deviations from the REMP sampling program as specified in ODCM-07.01 Table 1 and plans for the prevention of a recurrence, if applicable.

2.2.6 Ifthe level of radioactivity in an environmental sampling medium at a specified location exceeds the reporting levels of ODCM-07.01 Table 2 for the sample type specified in ODCM-07.01 Table 1 and is NOT the result of plant effluents, the condition SHALL be reported in the Radiological Environmental Operating Report.

2.2.7 A summary of the Interlaboratory Comparison Program SHALL be included in the Radiological Environmental Operating Report. Ifthe required Interlaboratory Comparison Program analyses are NOT performed, corrective action SHALL be reported in the Radiological Environmental Operating Report.

2.2.8 The Radiological Environmental Operating Report SHALL NOT include the complete analysis data tables. These tables contain the results of each sample analysis and SHALL be maintained by the licensee.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 TITLE: REPORTING REQUIREMENTS Revision 1*

Page 6 of 7 2.3 Annual Summary of Meteorological Data The annual summary of meteorological data SHALL be submitted for the previous calendar year in the form of joint frequency tables of wind speed, wind direction, and atmospheric stability at the request of the Nuclear Regulatory Commission.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-08.01 TITLE: REPORTING REQUIREMENTS Revision 1*

FPage 7 of 7 2.4 Record Retention 2.4.1 In accordance with T.S.6.6.A, the following records SHALL be retained for a minimum of five years:

A. Periodic checks, inspections, tests and calibrations of components and systems as related to the specifications and treatment systems defined in the ODCM.

B. Records of wind speed and direction.

C. Records of reviews performed for changes made to the Offsite Dose Calculation Manual.

2.4.2 In accordance with T.S.6.6.B, the following records SHALL be retained for the life of the plant:

A. Liquid and gaseous radioactive releases to the environs.

B. Off-site environmental surveys C. Radioactive shipments I/plr

I MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A Revision 0 Page 1of 74 I

OFFSITE DOSE CALCULATION MANUAL - TABLE OF CONTENTS SECTION PAGE 1.0 RECORD OF REVISION ............................................... 2 2.0

SUMMARY

OF DISPERSION CALCULATION PROCEDURES .............. 3 2.1 References ..................................................... 4 Table 1 Monticello Release Conditions .................................... 5 Table 2 Distances to Controlling Unrestricted Area Boundary Locations ....... 6 Table 3 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases >500 Hrs/Yr or >150 Hrs / Qtr .................... 7 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases >500 Hrs/Yr or >150 Hrs/Qtr ....................... 8 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases >500 Hrs/Yr or >150 Hrs/Qtr ....................... 16 Table 6 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases >500 Hrs/Yr or >150 Hrs/Qtr .................... 24 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases >500 Hrs/Yr or >150 Hrs/Qtr .................... 25 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases >500 Hrs/Yr or >150 Hrs/Qtr .................... 33 Table 9 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases <_500 Hrs/Yr or <150 Hrs/Qtr .................... 41 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases <500 Hrs/Yr or <150 Hrs/Qtr .................... 42 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases <500 HrsYr or <150 Hrs/Qtr ..................... 50 Table 12 Monticello Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases <500 Hrs/Yr or <150 Hrs/Qtr ............... 58 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases <500 Hrs/Yr or <150 Hrs/Qtr .................... 59 Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases <500 Hrs/Yr or <150 Hrs/Qtr .................... 67 Prepared By:

Reviewed By:

OC Final Review Meeti. Date:

Approved By P lant Manager: Date: *-z//

3087 (DOCUMENT CHANGE, HOLr, AND COMMENT FORM) incorporated:"

Resp Supv: CHEM lAssoc Ref: CHEM-I ( N Freq: yr' ARMS: ODCM-APP-A Doc Type: 7030 1Admin Initials: - Date7 / k) J I/plr

MONTICELLO NUCLEAR GENERATING PLANT OCM-APP-A TITLE: APPENDIX A Revision 0 Page 2 of 74 1.0 RECORD OF REVISION Revision No. Date Reason for Revision 0 October - 2000 Moved previous ODCM-06.01 tables into this Appendix to make the ODCM easier to use.

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TTEAPEDXARvsoMONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A Page 3 of 74 2.0

SUMMARY

OF DISPERSION CALCULATION PROCEDURES Updepleted, undecayed dispersion parameters were computed using program XOQDOQ (Sagendorf and Goll, 1977). Specifically, the computer sector D/Q values were obtained for a sector width of 22.5 degrees. Credit average yJQ and momentum plume rise and effective plume height was adjusted for was taken for for elevated releases. Building wake corrections were used to adjust local terrain height ground-level releases. Standard open terrain recirculation correction calculations for applied as available as default values in XOQDOQ. factors were also Dispersion calculations were based on mixed mode releases for the reactor vent and on elevated releases for the offgas stack. A summary of release conditions input to XOQDOQ is presented in Table 1 and controlling site boundary used as defined in Table 2. Computed XJQ and D/Q values for unrestricted distances are locations (relative to release points) and for standard distances (to area boundary source in 0.1 mile increments) are presented in Tables 3 through five miles from the 11.

For certain meteorological and release conditions, the enveloping in XOQDOQ used to compute short-term X/Q and D/Q values do interpolation routines not provide reasonable results. Because of this, results were reviewed for consistency possible, the distributions of calculated X/Q values were enveloped and where and interpolated by hand.

In some cases, use of the NRC methodology is implemented XOQDOQ estimating short term dispersion values results in values whichin are for annual values. For these cases, the annual average x/Q and D/Q lower than the conservatively represent short-term values. x/Q and D/Q values values are used to locations were adjusted (multiplied by a factor of 0.238) to accountfor on-site EPA exposure of workers in accordance with NUREG-0473(2). for limited daily On-site meteorological data for the period September 1, 1976 through (as presented in Appendix B) were used as input to XOQDOQ. Data August 31,1978 and AT stability classes were defined in conformance with NRC Regulatory were collected 1.23(3). Dispersion calculations for the reactor vent were based on Guide AT42.7-10m meter wind data (joint data recovery of 94 percent). Dispersion calculations and 10 offgas stack were based on AT100-.1om and 100 meter wind data (joint for the data recovery of 95 percent).

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 4 of 74 2.1 References

1. Sagendorf, J. F. and Goll, J. T., XOQDOQ Program for the Evaluation of Routine Effluent Releases at Nuclear Power Stations. NUREG 0324, U.S.

Nuclear Regulatory Commission, September 1977.

2. NUREG-0473

3. USNRC Regulatory Guide 1.23 I/plr

I TITLE: I I

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A APPENDIX A Revision 0 Page 5 of 74 Table 1 Monticello Release Conditions Reac otr Vent Off-Gas Stack Release Type Mixec Release Type Mixec mode (Long and Elevated (Long and short short.-term) term)

Release point height, m 42 100 Adjacent building height, m 42 42 Relative location to adjacent struc- Adjac ent to 400' SE of tures Turbirne Building Reactor Building Exit velocity, m/Sec 6.1 19.0 Internal stack diameter, m 2.41 0.36 Building cross-sectional area*, m2 1480 N/A Purge frequency', times per year 6 6 Purge duration**, hours/release 24 24

Applied to ground level releases.

Applied to short-term calculations only.

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MONTICELLO NUCLEAR GENERATING PLANT (*Nt*.I*/I.A DD_ A TITLE: I nnf-KA-ADD-A APPENDIX A Revision 0 Paae 6 of 74I Table 2 Distances to Controlling Unrestricted Area Boundary Locations Miles Column 1 Column 2*

As measured from Reactor Vent As Measured from Offgas Stack Sector Distance Sector Distance N 0.51 N 0.59 NNE 0.58 N 0.63 NE 0.65 NNE 0.65 ENE 0.83 ENE 0.78 E 0.59 E 0.50 ESE 0.59 E 0.50 SE 0.61 SSE 0.51 SSE 0.43 S 0.36 S 0.34 SSW 0.31 SSW 0.32 SW 0.33 SW 0.32 SW 0.33 WSW 0.35 WSW 0.38 W 0.48 W 0.56 WNW 0.68 NW 0.78 NW 0.43 NW 0.53 NNW 0.53 NNW 0.61

Locations specified in Column 2 are the same geographic points as specified in Column 1 although the reference points are different.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 E Page 7 of 74 Table 3 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yror>150 Hrs/Qtr Site Boundary Sector* XJQ (sec/m3) D/Q (m-2)

N 2.09E-06 2.89E-08 NNE 1.29E-06 1.82E-08 NE 7.76E-07 9.42E-09 ENE 6.11 E-07 5.62E-09 E 1.38E-06 1.45E-08 ESE 2.42E-06 3.15E-08 SE 2.53E-06 3.30E-08 SSE 4.08E-06 5.95E-08 S 2.30E-06 3.08E-08 SSW 1.80E-06 2.13E-08 SW 1.96E-06 2.54E-08 WSW 1.54E-06 1.72E-08 W 1.10E-06 1.23E-08 WNW 1.22E-06 1.19E-08 NW 2.11E-06 2.61 E-08 NNW 1.87E-06 2.55E-08 Period of record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A Revision 0 Page 8 of 74 Ii Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr 3

For Standard Distances (As Measured from the Reactor Vent) (X/Q), sec/m Miles 0.3 0.4 0.5 0.6 0.7 Sector* 0.1 0.2 N 2.94E-05 8.91E-06 4.59E-06 2.98E-06 2.17E-06 1.74E-06 1.46E-06 NNE 1.98E-05 6.24E-06 3.25E-06 2.11E-06 1.55E-06 1.25E-06 1.06E-06 NE 1.22E-05 3.84E-06 2.02E-06 1.33E-06 9.98E-07 8.21 E-07 7.09E-07 ENE 1.25E-05 3.91 E-06 2.05E-06 1.35E-06 1.01 E-06 8.46E-07 7.44E-07 E 1.97E-05 6.02E-06 3.20E-06 2.16E-06 1.64E-06 1.36E-06 1.1 9E-06 ESE 3.48E-05 1.05E-05 5.71 E-06 3.89E-06 2.94E-06 2.40E-06 2.04E-06 SE 3.91E-05 1.17E-05 6.34E-06 4.28E-06 3.20E-06 2.57E-06 2.15E-06 SSE 4.15E-05 1.26E-05 6.78E-06 4.52E-06 3.35E-06 2.70E-06 2.28E-06 S 1.60E-05 4.95E-06 2.69E-06 1.82E-06 1.39E-06 1.16E-06 1.02E-06 SSW 1.1 4E-05 3.54E-06 1.97E-06 1.39E-06 1.11 E-06 9.79E-07 8.94E-07 SW 1.28E-05 3.85E-06 2.15E-06 1.51 E-06 1.21 E-06 1.06E-06 9.58E-07 WSW 1.08E-05 3.29E-06 1.85E-06 1.32E-06 1.06E-06 9.52E-07 8.89E-07 W 1.21 E-05 3.73E-06 2.01 E-06 1.37E-06 1.07E-06 9.24E-07 8.42E-07 WNW 1.96E-05 6.01E-06 3.24E-06 2.17E-06 1.64E-06 1.37E-06 1.19E-06 NW 2.15E-05 6.49E-06 3.45E-06 2.32E-06 1.76E-06 1.45E-06 1.25E-06 NNW 2.71 E-05 8.24E-06 4.24E-06 2.74E-06 2.OOE-06 1.61 E-06 1.36E-06 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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1 MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 9 of 74 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd) 3 For Standard Distances (As Measured from the Reactor Vent) (x/Q), sec/m Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 1.21 E-06 9.77E-07 8.18E-07 7.OOE-07 6.1 OE-07 5.39E-07 4.82E-07 NNE 8.85E-07 7.19E-07 6.07E-07 5.24E-07 4.59E-07 4.08E-07 3.66E-07 NE 6.02E-07 4.94E-07 4.19E-07 3.61 E-07 3.16E-07 2.80E-07 2.50E-07 ENE 6.46E-07 5.41E-07 4.69E-07 4.13E-07 3.69E-07 3.32E-07 3.02E-07 E 1.02E-06 8.42E-07 7.16E-07 6.20E-07 5.45E-07 4.85E-07 4.35E-07 ESE 1.69E-06 1.35E-06 1.11 E-06 9.35E-07 7.99E-07 6.92E-07 6.06E-07 SE 1.76E-06 1.39E-06 1 .13E-06 9.46E-07 8.03E-07 6.93E-07 6.04E-07 SSE 1.89E-06 1.51E-06 1.25E-06 1.06E-06 9.14E-07 7.98E-07 7.06E-07 S 8.69E-07 7.17E-07 6.09E-07 5.27E-07 4.63E-07 4.12E-07 3.71E-07 SSW 7.94E-07 6.74E-07 5.85E-07 5.14E-07 4.57E-07 4.1OE-07 3.70E-07 SW 8.43E-07 7.09E-07 6.09E-07 5.31 E-07 4.68E-07 4.16E-07 3.73E-07 WSW 8.07E-07 6.97E-07 6.12E-07 5.44E-07 4.87E-07 4.39E-07 3.99E-07 W 7.50E-07 6.40E-07 5.59E-07 4.95E-07 4.42E-07 3.99E-07 3.63E-07 WNW 1.02E-06 8.42E-07 7.17E-07 6.22E-07 5.47E-07 4.87E-07 4.38E-07 NW 1.05E-06 8.55E-07 7.15E-07 6.1OE-07 5.29E-07 4.64E-07 4.11E-07 NNW 1.13E-06 9.14E-07 7.68E-07 6.60E-07 5.76E-07 5.1OE-07 4.57E-07 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT i*(r*t,*l

A r"t f"*i A I itii Arr A TITLE: APPENDIX A Revision 0 Pmn mi n n~f"7A I

P2n I A nf 7A Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (x/Q), sec/m3 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 4.35E-07 3.91 E-07 3.54E-07 3.23E-07 2.96E-07 2.72E-07 2.52E-07 NNE 3.32E-07 3.OOE-07 2.72E-07 2.49E-07 2.28E-07 2.11E-07 1.95E-07 NE 2.25E-07 2.07E-07 1.92E-07 1.78E-07 1.67E-07 1.57E-07 1.48E-07 ENE 2.77E-07 2.56E-07 2.37E-07 2.21 E-07 2.07E-07 1.94E-07 1.83E-07 E 3.94E-07 3.57E-07 3.25E-07 2.97E-07 2.73E-07 2.53E-07 2.34E-07 ESE 5.36E-07 4.78E-07 4.29E-07 3.88E-07 3.53E-07 3.23E-07 2.97E-07 SE 5.33E-07 4.80E-07 4.35E-07 3.97E-07 3.65E-07 3.37E-07 3.12E-07 SSE 6.31 E-07 5.63E-07 5.05E-07 4.57E-07 4.16E-07 3.80E-07 3.49E-07 S 3.36E-07 3.03E-07 2.74E-07 2.49E-07 2.28E-07 2.1OE-07 1.94E-07 SSW 3.37E-07 3.20E-07 3.05E-07 2.92E-07 2.81 E-07 2.71 E-07 2.62E-07 SW 3.37E-07 3.17E-07 2.99E-07 2.83E-07 2.70E-07 2.58E-07 2.47E-07 WSW 3.64E-07 3.44E-07 3.26E-07 3.1OE-07 2.95E-07 2.82E-07 2.71E-07 W 3.32E-07 3.16E-07 3.01E-07 2.89E-07 2.78E-07 2.69E-07 2.61E-07 WNW 3.97E-07 3.74E-07 3.54E-07 3.37E-07 3.23E-07 3.12E-07 3.02E-07 NW 3.68E-07 3.33E-07 3.03E-07 2.78E-07 2.57E-07 2.38E-07 2.21 E-07 NNW 4.13E-07 3.73E-07 3.39E-07 3.1OE-07 2.85E-07 2.63E-07 2.44E-07 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A

-Revision 0 Page 11 of 74 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent)

(X/Q), sec/m3 Miles Sector* 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Il 9 'zArIA7 eo 1o0 C!

.. , u,-u1 -. u04-u0 1.92E-U7 1.83E-07 1.75E-07 1.68E-07 NNE 1.82E-07 1.70E-07 1.59E-07 1.50E-07 1.41 E-07 1.33E-07 1.26E-07 NE 1.40E-07 1.32E-07 1.26E-07 1.20E-07 1.13E-07 1.07E-07 1.02E-07 ENE 1.73E-07 1.64E-07 1.56E-07 1.49E-07 1.41 E-07 1.34E-07 1.27E-07 E 2.18E-07 2.04E-07 1.91E-07 1.80E-07 1.69E-07 1.60E-07 1.51E-07 ESE 2.74E-07 2.53E-07 2.36E-07 2.20E-07 2.05E-07 1.93E-07 1.81 E-07 SE 2.91 E-07 2.73E-07 2.56E-07 2.41 E-07 2.26E-07 2.12E-07 1.99E-07 SSE 2.22E-07 2.99E-07 2.78E-07 2.59E-07 2.43E-07 2.29E-07 2.15E-07 S 1.80E-07 1.68E-07 1.57E-07 1.47E-07 1.42E-07 1.37E-07 1.33E-07 SSW 2.55E-07 2.48E-07 2.41 E-07 2.35E-07 2.20E-07 2.06E-07 1.94E-07 SW 2.38E-07 2.30E-07 2.22E-07 2.15E-07 2.04E-07 1.93E-07 1.83E-07 WSW 2.60E-07 2.51 E-07 2.42E-07 2.34E-07 2.18E-07 2.04E-07 1.92E-07 W 2.54E-07 2.48E-07 2.42E-07 2.37E-07 2.25E-07 2.14E-07 2.04E-07 WNW 2.93E-07 2.85E-07 2.79E-07 2.73E-07 2.64E-07 2.55E-07 2.47E-07 NW 2.07E-07 1.94E-07 1.82E-07 1.72E-07 1.66E-07 1.60E-07 1.55E-07 NNW 2.28E-07 2.13E-07 2.OOE-07 1.88E-07 1.78E-07 1.68E-07 1.60E-07 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 12 of 74 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd) 3 For Standard Distances (As Measured from the Reactor Vent) (x/Q), sec/M Miles 2.9 3.0 3.1 3.2 3.3 3.4 3.5 Sector*

N 1.62E-07 1.56E-07 1.51 E-07 1.46E-07 1.41 E-07 1.37E-07 1.33E-07 NNE 1.20E-07 1.14E-07 1.09E-07 1.04E-07 9.91E-08 9.49E-08 9.1OE-08 NE 9.64E-08 9.16E-08 8.73E-08 8.33E-07 7.96E-08 7.62E-08 7.30E-08 ENE 1.21 E-07 1.1 6E-07 1.11 E-07 1.06E-07 1.02E-07 9.75E-08 9.37E-08 E 1.44E-07 1.36E-07 1.30E-07 1.24E-07 1.18E-07 1.13E-07 1.09E-07 ESE 1.71 E-07 1.61 E-07 1.53E-07 1.45E-07 1.38E-07 1.31 E-07 1.25E-07 SE 1.88E-07 1.77E-07 1.68E-07 1.59E-07 1.51 E-07 1.44E-07 1.37E-07 SSE 2.04E-07 1.93E-07 1.83E-07 1.74E-07 1.66E-07 1.58E-07 1.51 E-07 S 1.29E-07 1.26E-07 1.22E-07 1.19E-07 1.17E-07 1.14E-07 1.12E-07 SSW 1.83E-07 1.73E-07 1.63E-07 1.55E-07 1.47E-07 1.40E-07 1.33E-07 SW 1.75E-07 1.67E-07 1.59E-07 1.52E-07 1.46E-07 1.40E-07 1.34E-07 WSW 1.80E-07 1.70E-07 1.60E-07 1.52E-07 1.44E-07 1.37E-07 1.30E-07 W 1.95E-07 1.87E-07 1.79E-07 1.72E-07 1.65E-07 1.59E-07 1.53E-07 WNW 2.40E-07 2.33E-07 2.26E-07 2.19E-07 2.13E-07 2.07E-07 2.01E-07 NW 1.50E-07 1.46E-07 1.42E-07 1.39E-07 1.36E-07 1.33E-07 1.31 E-07 NNW 1.52E-07 1.45E-07 1.38E-07 1.32E-07 1.26E-07 1.21 E-07 1.17E-07 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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I MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page w 13 of 74 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (X/Q), sec/m3 Miles 3.6 3.7 3.8 3.9 4.0 4.1 4.2 Sector*

N 1.28E-07 1.23E-07 1.18E-07 1.14E-07 1.10E-07 1.06E-07 1.02E-07 NNE 8.74E-08 8.40E-08 8.09E-08 7.80E-08 7.52E-08 7.26E-08 7.02E-08 NE 7.01 E-08 6.74E-08 6.48E-08 6.24E-08 6.02E-08 5.81 E-08 5.61 E-08 ENE 9.02E-08 8.69E-08 8.38E-08 8.1 OE-08 7.82E-08 7.57E-08 7.33E-08 E 1.04E-07 1.OOE-07 9.62E-08 9.26E-08 8.92E-08 8.61 E-08 8.31 E-08 ESE 1.19E-07 1.14E-07 1.09E-07 1.05E-07 1.01E-07 9.66E-07 9.29E-08 SE 1.31E-07 1.25E-07 1.20E-07 1.15E-07 1.10E-07 1.06E-07 1.02E-07 SSE 1.45E-07 1.40E-07 1.36E-07 1.31 E-07 1.27E-07 1.23E-07 1.1 9E-07 S 1.08E-07 1.05E-07 1.02E-07 9.95E-08 9.69E-08 9.44E-08 9.20E-08 SSW 1.29E-07 1.25E-07 1.21E-07 1.17E-07 1.13E-07 1.10E-07 1.07E-07 SW 1.31E-07 1.27E-07 1.24E-07 1.20E-07 1.17E-07 1.14E-07 1.11E-07 WSW 1.27E-07 1.23E-07 1.20E-07 1.17E-07 1.14E-07 1.11E-07 1.09E-07 W 1.46E-07 1.39E-07 1.33E-07 1.28E-07 1.22E-07 1.17E-07 1.13E-07 WNW 1.91 E-07 1.82E-07 1.74E-07 1.66E-07 1.59E-07 1.52E-07 1.46E-07 NW 1.26E-07 1.23E-07 1.19E-07 1.16E-07 1.13E-07 1.1OE-07 1.07E-07 NNW 1.12E-07 1.08E-07 1.04E-07 1.01E-07 9.73E-08 9.41E-08 9.11E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 14 of 74 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases I

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (x/Q), sec/m3 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 9.86E-08 9.54E-08 9.23E-08 8.95E-08 8.68E-08 8.42E-08 8.18E-08 NNE 6.79E-08 6.57E-08 6.37E-08 6.18E-08 6.OOE-08 5.83E-08 5.66E-08 NE 5.43E-08 5.25E-08 5.09E-08 4.93E-08 4.78E-08 4.65E-08 4.51 E-08 ENE 7.1OE-08 6.89E-08 6.68E-08 6.49E-08 6.31E-08 6.14E-08 5.97E-08 E 8.09E-08 7.77E-08 7.53E-08 7.29E-08 7.07E-08 6.87E-08 6.67E-08 ESE 8.05E-08 8.63E-08 8.33E-08 8.04E-08 7.78E-08 7.52E-08 7.28E-08 SE 9.84E-08 9.48E-08 9.15E-08 8.84E-08 8.55E-08 8.27E-08 8.01E-08 SSE 1.16E-07 1.13E-07 1.10E-07 1.06E-07 1.03E-07 9.92E-08 9.61E-08 S 8.98E-08 8.77E-08 8.57E-08 8.28E-08 8.OOE-08 7.74E-08 7.50E-08 SSW 1.04E-07 1.01E-07 9.84E-08 9.49E-08 9.16E-08 8.85E-08 8.55E-08 SW 1.08E-07 1.05E-07 1.02E-07 9.82E-08 9.46E-08 9.12E-08 8.79E-08 WSW 1.06E-07 1.03E-07 1.01 E-07 9.72E-08 9.36E-08 9.03E-08 8.72E-08 W 1.08E-07 1.04E-07 1.OOE-07 9.69E-08 9.36E-08 9.04E-08 8.74E-08 WNW 1.40E-07 1.35E-07 1.30E-07 1.25E-07 1.20E-07 1.16E-07 1.12E-07 NW 1.04E-07 1.02E-07 9.92E-08 9.58E-08 9.26E-08 8.95E-08 8.67E-08 NNW 8.83E-08 8.57E-08 8.32E-08 8.07E-08 7.82E-08 7.60E-08 7.38E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE:' APPENDIX A Revision 0 EPage 15 of 74 Table 4 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (x/Q),

sec/m3 Miles Sector* 5.0 N 7.94E-08 NNE 5.51 E-08 NE 4.39E-08 ENE 5.82E-08 E 6.48E-08 ESE 7.06E-08 SE 7.76E-08 SSE 9.31 E-08 S 7.26E-08 SSW 8.28E-08 SW 8.49E-08 WSW 8.42E-08 W 8.46E-08 WNW 1.08E-07 NW 8.40E-08 NNW 7.18E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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w" MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A Revision 0 Page 16 of 74 I1 i

Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m2 Miles Sector* 0.1 0.2 0.3 0.4 0.5 0.6 0.7 N 2.75E-07 1.10E-07 6.31E-08 4.18E-08 3.01E-08 2.28E-08 1.80E-08 NNE 1.89E-07 7.89E-08 4.70E-08 3.17E-08 2.30E-08 1.74E-08 1.37E-08 NE 1.11E-07 4.68E-08 2.81E-08 1.91E-08 1.39E-08 1.06E-08 8.41E-09 ENE 1.03E-07 4.32E-08 2.61 E-08 1.78E-08 1.31 E-08 1.OOE-08 7.94E-09 E 1.58E-07 6.46E-08 3.08E-08 2.56E-08 1.87E-08 1.42E-08 1.13E-08 ESE 3.79E-07 1.49E-07 8.53E-08 5.66E-08 4.09E-08 3.11E-08 2.46E-08 SE 4.31E-07 1.67E-07 9.41E-08 6.19E-08 4.43E-08 3.36E-08 2.65E-08 SSE 4.49E-07 1.77E-07 1.01 E-07 6.65E-08 4.78E-08 3.62E-08 2.86E-08 S 1.47E-07 6.03E-08 3.58E-08 2.43E-08 1.79E-08 1.38E-08 1.10E-08 SSW 9.22E-08 3.85E-08 2.33E-08 1.62E-08 1.21 E-08 9.50E-09 7.72E-09 SW 1.21E-07 4.80E-08 2.79E-08 1.90E-08 1.41E-08 1.1OE-08 8.89E-09 WSW 8.33E-08 3.44E-08 2.07E-08 1.44E-08 1.09E-08 8.57E-09 7.01 E-09 W 9.09E-08 3.80E-08 2.29E-08 1.58E-08 1.18E-08 9.18E-09 7.41E-09 WNW 1.51 E-07 6.14E-08 3.65E-08 2.49E-08 1.83E-08 1.41 E-08 1.1 3E-08 NW 1.86E-07 7.43E-08 4.30E-08 2.89E-08 2.11E-08 1.62E-08 1.29E-08 NNW 2.45E-07 9.85E-08 5.73E-08 3.82E-08 2.76E-08 2.1OE-08 1.66E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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I MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 17 of 74 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd) 2 For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m Miles 1.0 1.1 1.2 1.3 1.4 Sector* 0.8 0.9 N 1.38E-08 1.02E-08 7.88E-09 6.23E-09 5.03E-09 4.14E-09 3.55E-09 NNE 1.05E-08 7.83E-09 6.02E-09 4.76E-09 3.85E-09 3.17E-09 2.72E-09 NE 6.48E-09 4.84E-09 3.74E-09 2.96E-09 2.40E-09 1.98E-09 1.66E-09 ENE 6.14E-09 4.60E-09 3.56E-09 2.83E-09 2.30E-09 1.90E-09 1.60E-09 E 8.71 E-09 6.51 E-09 5.04E-09 4.OOE-09 3.24E-09 2.68E-09 2.24E-09 ESE 1.89E-08 1.41 E-09 1.09E-08 8.64E-09 7.00E-09 5.77E-09 4.83E-09 SE 2.03E-08 1.51E-08 1.17E-08 9.22E-09 7.45E-09 6.14E-09 5.13E-09 SSE 2.19E-08 1.63E-08 1.26E-08 9.93E-09 8.03E-09 6.61E-09 5.75E-09 S 8.57E-09 6.44E-09 5.01 E-09 3.99E-09 3.46E-09 2.85E-09 2.38E-09 SSW 6.08E-09 4.63E-09 3.63E-09 2.92E-09 2.39E-09 2.09E-09 1.76E-09 SW 6.99E-09 5.31E-09 4.16E-09 3.34E-09 2.73E-09 2.41E-09 2.02E-09 WSW 5.56E-09 4.86E-09 3.36E-09 2.71 E-09 2.23E-09 1.86E-09 1.63E-09 W 5.81 E-09 4.41 E-09 3.45E-09 2.77E-09 2.27E-09 1.89E-09 1.65E-09 WNW 8.82E-09 7.50E-09 5.17E-09 4.13E-09 3.76E-09 2.79E-09 2.48E-09 NW 9.99E-09 7.50E-09 5.82E-09 4.63E-09 3.76E-09 3.11 E-09 2.61 E-09 NNW 1.27E-08 9.47E-09 7.30E-09 5.78E-09 4.67E-09 3.85E-09 3.32E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 18 of 74 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m2 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 3.OOE-09 2.57E-09 2.22E-09 1.93E-09 1.70E-09 1.51 E-09 1.34E-09 NNE 2.30E-09 1.97E-09 1.71E-09 1.49E-09 1.31E-09 1.16E-09 1.04E-09 NE 1.41E-09 1.21E-09 1.05E-09 9.18E-10 8.12E-10 7.20E-10 6.44E-10 ENE 1.36E-09 1.17E-09 1.01E-09 8.84E-10 7.81E-10 6.94E-10 6.20E-10 E 1.91E-09 1.64E-09 1.42E-09 1.24E-09 1.09E-09 9.71E-10 8.67E-10 ESE 4.09E-09 3.51 E-09 3.04E-09 2.65E-09 2.34E-09 2.07E-09 1.85E-09 SE 4.34E-09 3.72E-09 3.22E-09 2.81 E-09 2.48E-09 2.19E-09 1.96E-09 SSE 4.86E-09 4.16E-09 3.59E-09 3.13E-09 2.75E-09 2.43E-09 2.17E-09 S 2.03E-09 1.74E-09 1.50E-09 1.31E-09 1.16E-09 1.02E-09 9.13E-10 SSW 1.50E-09 1.33E-09 1.15E-09 1.01E-09 9.52E-10 8.43E-10 7.52E-10 SW 1.72E-09 1.52E-09 1.32E-09 1.15E-09 1.08E-09 9.53E-10 8.49E-10 WSW 1.39E-09 1.25E-09 1.09E-09 9.54E-10 9.16E-10 8.11E-10 7.23E-10 W 1.40E-09 1.24E-09 1.08E-09 9.44E-1 0 8.93E-1 0 7.91 E-1 0 7.05E-10 WNW 2.1OE-09 1.84E-09 1.59E-09 1.39E-09 1.28E-09 1.13E-09 1.01E-09 NW 2.22E-09 1.91 E-09 1.65E-09 1.45E-09 1.28E-09 1.13E-09 1.01 E-09 NNW 2.81 E-09 2.40E-09 2.08E-09 1.81 E-09 1.59E-09 1.42E-09 1.27E-09 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A jRevision 0 Page 19 of 74 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m2 Miles Sector* 2.2 2.3 2.4 2.5 2.6 2.7 2.8 N 1.21 E-09 1.09E-09 9.85E-1 0 8.97E-1 0 8.29E-1 0 7.64E-1 0 7.05E-1 0 NNE 9.29E-1 0 8.38E-10 7.60E-1 0 6.92E-1 0 6.33E-1 0 5.81 E-10 5.35E-1 0 NE 5.78E-1 0 5.23E-1 0 4.83E-1 0 4.40E-1 0 4.03E-1 0 3.70E-1 0 3.41 E-10 ENE 5.70E-1 0 5.14E-10 4.67E-1 0 4.25E-1 0 3.89E-1 0 3.57E-1 0 3.29E-1 0 E 7.79E-1 0 7.03E-1 0 6.38E-1 0 5.82E-10 5.32E-1 0 4.89E-10 4.51 E-1 0 ESE 1.66E-09 1.50E-09 1.36E-09 1.24E-09 1 .13E-09 1.04E-09 9.56E-1 0 SE 1.81 E-09 1.63E-09 1.47E-09 1.35E-09 1.23E-09 1.13E-09 1.04E-09 SSE 1.94E-09 1.75E-09 1.59E-09 1.44E-09 1.32E-09 1.21 E-09 1.11E-09 S 8.91 E-1 0 7.38E-1 0 6.69E-10 6.09E-1 0 5.59E-1 0 5.16E-10 4.76E-1 0 SSW 6.74E-1 0 6.08E-1 0 5.51 E-1 0 5.02E-1 0 4.60E-1 0 4.22E-10 3.90E-10 SW 7.61 E-1 0 6.86E-1 0 6.22E-1 0 5.66E-10 5.18E-10 4.75E-1 0 4.38E-1 0 WSW 6.49E-1 0 5.85E-1 0 5.30E-1 0 4.83E-1 0 4.42E-1 0 4.07E-1 0 3.75E-1 0 W 6.33E-10 5.71 E-1 0 5.18E-10 4.72E-1 0 4.32E-1 0 3.98E-1 0 3.67E-1 0 WNW 9.02E-1 0 8.14E-10 7.38E-1 0 6.72E-10 6.15E-10 5.66E-1 0 5.22E-1 0 NW 9.09E-1 0 8.48E-10 7.69E-1 0 7.OOE-1 0 6.48E-1 0 5.95E-1 0 5.52E-10 NNW 1 .14E-09 1.03E-09 9.29E-1 0 7.77E-10 7.14E-1 0 0 8.46E-1 0 6.59E-1 0 of Rcord:9-1-7toE-31-7 Perio Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 20 of 74 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m2 Miles Sector* 2.9 3.0 3.1 3.2 3.3 3.4 3.5 N 6.52E-1 0 6.09E-1 0 5.67E-1 0 5.30E-1 0 5.OOE-1 0 4.71 E-1 0 4.46E-1 0 NNE 4.95E-10 4.59E-10 4.26E-10 3.97E-10 3.71E-10 3.48E-10 3.27E-10 NE 3.15E-10 2.92E-10 2.72E-10 2.53E-10 2.37E-10 2.22E-10 2.08E-10 ENE 3.04E-10 2.82E-10 2.62E-10 2.44E-10 2.28E-10 2.14E-10 2.01E-10 E 4.16E-10 3.86E-10 3.59E-10 3.34E-10 3.12E-10 2.93E-10 2.75E-10 ESE 8.83E-10 8.18E-10 7.60E-10 7.08E-10 6.61E-10 6.19E-10 5.80E-10 SE 9.59E-10 8.88E-10 8.25E-10 7.68E-10 7.17E-10 6.71E-10 6.30E-10 SSE 1.03E-09 9.56E-1 0 8.89E-1 0 8.28E-1 0 7.73E-1 0 7.24E-1 0 6.79E-1 0 S 4.42E-10 4.12E-10 3.93E-10 3.68E-10 3.44E-10 3.24E-10 3.05E-10 SSW 3.61 E-1 0 3.35E-1 0 3.13E-1 0 2.92E-1 0 2.74E-1 0 2.58E-1 0 2.43E-1 0 SW 4.05E-10 3.76E-10 3.50E-10 3.27E-10 3.06E-10 2.87E-10 2.71E-10 WSW 3.47E-10 3.23E-10 3.01E-10 2.81E-10 2.64E-10 2.48E-10 2.34E-10 W 3.40E-10 3.16E-10 2.95E-10 2.76E-10 2.60E-10 2.44E-10 2.31E-10 WNW 4.83E-10 4.49E-10 4.19E-10 3.91E-10 3.68E-10 3.90E-10 3.98E-10 NW 5.13E-10 4.78E-10 4.54E-10 4.25E-10 3.99E-10 3.75E-10 3.53E-10 NNW 6.1OE-10 5.66E-10 5.27E-10 4.92E-10 4.61E-10 4.33E-10 4.08E-10 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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IMONTICELLO I1 NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 21 of 74 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd) 2 For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m Miles 3.7 3.8 3.9 4.0 4.1 4.2 Sector* 3.6 N 4.22E-10 4.OOE-10 3.80E-10 3.62E-10 3.45E-10 3.30E-10 3.16E-10 NNE 3.08E-10 2.90E-10 2.74E-10 2.59E-10 2.46E-10 2.34E-10 2.22E-10 NE 1.96E-1 0 1.87E-1 0 1.75E-1 0 1.65E-1 0 1.57E-1 0 1.49E-1 0 1.41 E-1 0 ENE 1.89E-1 0 1.78E-1 0 1.68E-1 0 1.59E-1 0 1.51 E-1 0 1.43E-1 0 1.36E-1 0 E 2.58E-10 2.43E-10 2.29E-10 2.17E-10 2.05E-10 1.95E-10 1.85E-10 ESE 5.45E-10 5.13E-10 4.84E-10 4.57E-10 4.33E-10 4.1OE-10 3.89E-10 SE 5.93E-10 5.58E-10 5.27E-10 4.98E-10 4.72E-10 4.48E-10 4.26E-10 SSE 6.46E-10 6.09E-10 5.76E-10 5.55E-10 5.27E-10 5.02E-10 4.79E-10 S 2.88E-10 2.73E-10 2.59E-10 2.46E-10 2.35E-10 2.24E-10 2.14E-10 SSW 2.30E-10 2.18E-10 2.07E-10 1.97E-10 1.88E-10 1.80E-10 1.72E-10 SW 2.55E-10 2.42E-10 2.29E-10 2.18E-10 2.28E-10 2.33E-10 2.22E-10 WSW 2.21E-10 2.1OE-10 1.99E-10 1.90E-10 1.81E-10 1.73E-10 1.66E-10 W 2.19E-10 2.08E-10 1.98E-10 1.88E-10 1.80E-10 1.72E-10 1.65E-10 WNW 3.75E-10 3.55E-10 3.36E-10 3.19E-10 3.04E-10 2.89E-10 2.76E-10 NW 3.34E-10 3.17E-10 3.01E-10 2.86E-10 2.73E-10 2.61E-10 2.50E-10 NNW 3.85E-10 3.64E-10 3.45E-10 3.28E-10 3.12E-10 3.04E-10 2.90E-10 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT 0DCM-APP-A TITLE:

APPENDIX A Revision 0 I

~ ~ rnfI A P 7A Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m2 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 3.03E-10 2.91E-10 2.80E-10 2.70E-10 2.61E-10 2.52E-10 2.44E-10 NNE 2.12E-10 2.02E-10 1.93E-10 1.84E-10 1.76E-10 1.69E-10 1.62E-10 NE 1.35E-10 1.28E-10 1.23E-10 1.17E-10 1.12E-10 1.07E-10 1.03E-10 ENE 1.29E-10 1.23E-10 1.18E-10 1.12E-10 1.08E-10 1.03E-10 9.88E-11 E 1.76E-1 0 1.67E-1 0 1.59E-1 0 1.52E-1 0 1.45E-1 0 1.39E-1 0 1.33E-1 0 ESE 3.70E-10 3.52E-10 3.35E-10 3.20E-10 3.05E-10 2.92E-10 2.79E-10 SE 4.05E-10 3.87E-10 3.69E-10 3.53E-10 3.38E-10 3.24E-10 3.11E-10 SSE 4.61E-10 4.41E-10 4.26E-10 4.09E-10 3.94E-10 3.80E-10 3.66E-10 S 2.05E-10 1.97E-10 1.90E-10 1.83E-10 1.76E-10 1.70E-10 1.65E-10 SSW 1.65E-1 0 1.59E-1 0 1.53E-1 0 1.48E-1 0 1.43E-1 0 1.38E-1 0 1.34E-10 SW 2.42E-10 2.42E-10 2.41E-10 2.30E-10 2.20E-10 2.1OE-10 2.01E-10 WSW 1.59E-10 1.53E-10 1.58E-10 1.52E-10 1.47E-10 1.42E-10 1.37E-10 W 1.59E-1 0 1.53E-1 0 1.48E-1 0 1.43E-1 0 1.38E-1 0 1.34E-1 0 1.30E-1 0 WNW 2.64E-10 2.53E-10 2.42E-10 2.33E-10 2.24E-10 2.16E-10 2.08E-10 NW 2.39E-10 2.30E-10 2.22E-10 2.14E-10 2.07E-10 2.OOE-10 1.93E-10 NNW 2.78E-10 2.67E-10 2.57E-10 2.47E-10 2.38E-10 2.30E-10 2.22E-10 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 23 of 74 Table 5 Monticello Reactor Vent Dispersion Parameters for Long Term Mixed Mode Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Reactor Vent) (D/Q), /m2 Miles Sector* 5.0 N 2.36E-10 NNE 1.56E-10 NE 9.90E-11 ENE 9.49E-11 E 1.27E-1 0 ESE 2.68E-10 SE 2.99E-10 SSE 3.54E-10 S 1.60E-1 0 SSW 1.30E-1 0 SW 1.93E-1 0 WSW 1.33E-1 0 W 1.27E-10 WNW 2.01E-10 NW 1.87E-1 0 NNW 2.15E-10 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 24 of 74 Table 6 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr Site Boundary Sector* xIQ (Sec/m 3 ) D/Q (m- 2 )

N 7.04E-08 4.51 E-09 NNE 7.06E-08 4.30E-09 NE 1.OOE-07 6.18E-09 ENE 6.20E-08 2.34E-09 E 4.46E-08 2.77E-09 ESE 5.28E-08 3.93E-09 SE 5.50E-08 4.98E-09 SSE 3.99E-08 4.20E-09 S 1.83E-08 2.63E-09 SSW 1.17E-08 1.46E-09 SW 1.17E-08 1.46E-09 WSW 1.34E-08 1.34E-09 W 3.42E-08 1.67E-09 WNW 7.22E-08 2.43E-09 NW 5.67E-08 2.82E-09 NNW 1.08E-07 5.80E-09 Period of record: 9-1 -76 to 8-31 -78.

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 25.of 74 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr 3

For Standard Distances (As Measured from the Offgas Stack) ('XQ), sec/m Miles Sector* 0.1 0.2 0.3 0.4 0.5 0.6 0.7 N 2.39E-11 4.33E-08 6.96E-08 7.18E-08 7.08E-08 7.05E-08 7.15E-08 NNE 3.93E-1 1 6.93E-08 1.04E-07 1.03E-07 1.02E-07 1.01 E-07 9.96E-08 NE 1 .15E-11 2.27E-08 4.42E-08 5.50E-08 6.09E-08 6.34E-08 6.46E-08 ENE 1.OOE-11 1.96E-08 3.74E-08 4.75E-08 5.48E-08 5.94E-08 6.22E-08 E 3.09E-12 7.35E-09 2.33E-08 3.64E-08 4.44E-08 4.93E-08 5.30E-08 ESE 2.80E-1 2 7.63E-09 2.67E-08 4.30E-08 5.31 E-08 5.99E-08 6.61 E-08 SE 5.57E-1 2 1.31 E-08 3.90E-08 5.97E-08 7.41 E-08 8.66E-08 9.91 E-08 SSE 6.56E-1 2 1.40E-08 3.27E-08 4.50E-08 5.37E-08 6.41 E-08 7.81 E-08 S 4.93E-12 1.23E-08 3.06E-08 4.42E-08 5.35E-08 6.15E-08 6.95E-08 SSW 1.62E-12 4.83E-09 1.73E-08 2.93E-08 3.77E-08 4.45E-08 5.11E-08 SW 5.96E-1 3 2.06E-09 9.62E-09 1.69E-08 2.21 E-08 2.73E-08 3.37E-08 WSW 3.07E-1 3 1.30E-09 7.80E-09 1.43E-08 1.87E-08 2.33E-08 2.94E-08 W 1.87E-12 6.43E-09 1.74E-08 2.59E-08 3.15E-08 3.63E-08 4.14E-08 WNW 1.56E-12 5.49E-09 2.06E-08 3.41 E-08 4.21 E-08 4.76E-08 5.27E-08 NW 5.29E-12 1.20E-08 3.15E-08 4.53E-08 5.46E-08 6.24E-08 6.92E-08 NNW 3.03E-11 5.55E-08 9.01E-08 9.73E-08 1.02E-07 1.07E-07 1.11E-07 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 26 of 74 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (X/Q), sec/m3 Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 7.07E-08 6.72E-08 6.55E-08 6.42E-08 6.30E-08 6.18E-08 6.05E-08 NNE 9.48E-08 8.63E-08 8.08E-08 7.65E-08 7.29E-08 6.97E-08 6.67E-08 NE 6.26E-08 5.76E-08 5.41E-08 5.13E-08 4.89E-08 4.69E-08 4.50E-08 ENE 6.13E-08 5.70E-08 5.38E-08 5.12E-08 4.89E-08 4.67E-08 4.47E-08 E 5.36E-08 5.1OE-08 4.91E-08 4.74E-08 4.58E-08 4.43E-08 4.27E-08 ESE 6.89E-08 6.75E-08 6.63E-08 6.51E-08 6.36E-08 6.19E-08 6.OOE-08 SE 1.06E-07 1.05E-07 1.04E-07 1.02E-07 9.96E-08 9.66E-08 9.32E-08 SSE 9.01 E-08 9.61 E-08 1.01 E-07 1.04E-07 1.06E-07 1.06E-07 1.05E-07 S 7.41E-08 7.41E-08 7.42E-08 7.39E-08 7.31E-08 7.19E-08 7.04E-08 SSW 5.49E-08 5.49E-08 5.49E-08 5.44E-08 5.37E-08 5.26E-08 5.13E-08 SW 3.88E-08 4.13E-08 4.31E-08 4.43E-08 4.49E-08 4.49E-08 4.45E-08 WSW 3.49E-08 3.82E-08 4.1 OE-08 4.32E-08 4.46E-08 4.55E-08 4.58E-08 W 4.50E-08 4.59E-08 4.69E-08 4.77E-08 4.80E-08 4.80E-08 4.77E-08 WNW 5.52E-08 5.45E-08 5.42E-08 5.39E-08 5.33E-08 5.26E-08 5.16E-08 NW 7.18E-08 6.96E-08 6.77E-08 6.59E-08 6.40E-08 6.21 E-08 6.01 E-08 NNW 1.08E-07 9.96E-08 9.36E-08 8.85E-08 8.40E-08 8.OOE-08 7.63E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/Q), sec/m3 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 5..Q1FI-NA L IAQ

J* m*, Ir* A*

NNEN .. ... -

6.40E-08 R....J 0 O.,u,-u8 4-99E-08 4.78E-08 4.59E-08 6.06E-08 5.74E-08 5.45E-08 5.17E-08 4.92E-08 4.69E-08 NE 4.33E-08 4.23E-08 4.14E-08 4.06E-08 3.96E-08 3.88E-08 3.79E-08 ENE 4.28E-08 4.1OE-08 3.93E-08 3.77E-08 3.62E-08 3.47E-08 3.34E-08 E 4.12E-08 3.94E-08 3.76E-08 3.60E-08 3.44E-08 3.29E-08 3.15E-08 ESE 5.80E-08 5.59E-08 5.39E-08 5.18E-08 4.98E-08 4.78E-08 4.60E-08 SE 8.97E-08 8.77E-08 8.55E-08 8.32E-08 8.07E-08 7.83E-08 7.59E-08 SSE 1.04E-08 9.98E-08 9.58E-08 9.19E-08 8.80E-08 8.42E-08 8.06E-08 S 6.85E-08 6.54E-08 6.23E-08 5.93E-08 5.65E-08 5.39E-08 5.14E-08 SSW 4.99E-08 5.03E-08 5.04E-08 5.04E-08 5.02E-08 4.99E-08 4.95E-08 SW 4.37E-08 4.46E-08 4.51 E-08 4.54E-08 4.55E-08 4.54E-08 4.52E-08 WSW 4.57E-08 4.71 E-08 4.81 E-08 4.88E-08 4.92E-08 4.94E-08 4.95E-08 W 4.71 E-08 4.79E-08 4.85E-08 4.89E-08 4.90E-08 4.90E-08 4.89E-08 WNW 5.05E-08 5.1OE-08 5.12E-08 5.13E-08 5.12E-08 5.11E-08 5.08E-08 NW 5.81E-08 5.64E-08 5.47E-08 5.30E-08 5.13E-08 4.97E-08 4.82E-08 NNW 7.29E-08 6.89E-08 6.52E-08 6.18E-08 5.87E-08 5.58E-08 5.31 E-08 Period of Record: 9-1-76 to 8-31-7 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 28 of 74 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/Q), sec/m3 I

Miles Sector* 2.2 2.3 2.4 2.5 2.6 2.7 2.8 N 4.41 E-08 4.23E-08 4.07E-08 3.92E-08 3.82E-08 3.73E-08 3.64E-08 NNE 4.48E-08 4.28E-08 4.09E-08 3.92E-08 3.76E-08 3.61 E-08 3.47E-08 NE 3.71 E-08 3.63E-08 3.53E-08 3.47E-08 3.35E-08 3.24E-08 3.13E-08 ENE 3.21 E-08 3.09E-08 2.98E-08 2.87E-08 2.76E-08 2.65E-08 2.55E-08 E 3.02E-08 2.90E-08 2.78E-08 2.67E-08 2.57E-08 2.47E-08 2.38E-08 ESE 4.42E-08 4.25E-08 4.09E-08 3.94E-08 3.79E-08 3.66E-08 3.53E-08 SE 7.35E-08 7.12E-08 6.89E-08 6.68E-08 6.38E-08 6.11E-08 5.85E-08 SSE 7.72E-08 7.39E-08 7.08E-08 6.79E-08 6.53E-08 6.28E-08 6.05E-08 S 4.91E-08 4.69E-08 4.48E-08 4.29E-08 4.20E-08 4.11E-08 4.03E-08 SSW 4.90E-08 4.85E-08 4.79E-08 4.73E-08 4.51 E-08 4.30E-08 4.11 E-08 SW 4.49E-08 4.46E-08 4.42E-08 4.38E-08 4.23E-08 4.09E-08 3.96E-08 WSW 4.93E-08 4.91 E-08 4.88E-08 4.84E-08 4.63E-08 4.42E-08 4.24E-08 W 4.86E-08 4.83E-08 4.79E-08 4.75E-08 4.59E-08 4.44E-08 4.30E-08 WNW 5.05E-08 5.01 E-08 4.97E-08 4.93E-08 4.84E-08 4.75E-08 4.66E-08 NW 4.67E-08 4.52E-08 4.38E-08 4.25E-08 4.19E-08 4.14E-08 4.08E-08 NNW 5.06E-08 4.83E-08 4.62E-08 4.42E-08 4.24E-08 4.07E-08 3.91 E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A Revision 0 I Page 29 of 74 I Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd) 3 For Standard Distances (As Measured from the Offgas Stack) (x/Q), sec/m Miles 3.0 3.1 3.2 3.3 3.4 3.5 Sector* 2.9 N 3.55E-08 3.47E-08 3.39E-08 3.31E-08 3.24E-08 3.17E-08 3.1OE-08 NNE 3.34E-08 3.22E-08 3.11E-08 3.OOE-08 2.90E-08 2.80E-08 2.71E-08 NE 3.03E-08 2.93E-08 2.84E-08 2.76E-08 2.67E-08 2.60E-08 2.52E-08 ENE 2.46E-08 2.37E-08 2.29E-08 2.21E-08 2.14E-08 2.07E-08 2.OOE-08 E 2.30E-08 2.22E-08 2.14E-08 2.07E-08 2.OOE-08 1.94E-08 1.88E-08 ESE 3.41 E-08 3.29E-08 3.18E-08 3.08E-08 2.98E-08 2.89E-08 2.80E-08 SE 5.62E-08 5.39E-08 5.18E-08 4.98E-08 4.80E-08 4.62E-08 4.46E-08 SSE 5.83E-08 5.62E-08 5.42E-08 5.23E-08 5.05E-08 4.89E-08 4.73E-08 S 3.94E-08 3.86E-08 3.78E-08 3.70E-08 3.63E-08 3.55E-08 3.49E-08 SSW 3.93E-08 3.77E-08 3.61 E-08 3.47E-08 3.34E-08 3.21 E-08 3.09E-08 SW 3.84E-08 3.72E-08 3.61 E-08 3.51 E-08 3.41 E-08 3.32E-08 3.23E-08 WSW 4.06E-08 3.90E-08 3.74E-08 3.60E-08 3.47E-08 3.34E-08 3.22E-08 W 4.17E-08 4.04E-08 3.93E-08 3.81E-08 3.70E-08 3.60E-08 3.50E-08 WNW 4.58E-08 4.50E-08 4.42E-08 4.34E-08 4.27E-08 4.20E-08 4.14E-08 NW 4.02E-08 3.96E-08 3.90E-08 3.85E-08 3.79E-08 3.74E-08 3.68E-08 NNW 3.76E-08 3.62E-08 3.49E-08 3.36E-08 3.25E-08 3.14E-08 3.03E-08 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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IMONTICELLO I ODCM-APP-A TITLE: APPENDIX A II Revision 0 0

NUCLEAR GENERATING PLANT Page 30 of 74 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/Q), sec/m 3 Miles Sector* 3.6 3.7 3.8 3.9 4.0 4.1 4.2 N 3.OOE-08 2.91 E-08 2.82E-08 2.74E-08 2.66E-08 2.59E-08 2.51 E-08 NNE 2.63E-08 2.54E-08 2.47E-08 2.40E-08 2.33E-08 2.26E-08 2.20E-08 NE 2.45E-08 2.39E-08 2.32E-08 2.26E-08 2.20E-08 2.15E-08 2.09E-08 ENE 1.94E-08 1.88E-08 1.83E-08 1.77E-08 1.73E-08 1.68E-08 1.63E-08 E 1.82E-08 1.77E-08 1.71 E-08 1.66E-08 1.62E-08 1.57E-08 1.53E-08 ESE 2.72E-08 2.64E-08 2.56E-08 2.49E-08 2.42E-08 2.35E-08 2.29E-08 SE 4.30E-08 4.16E-08 4.02E-08 3.89E-08 3.77E-08 3.65E-08 3.54E-08 SSE 4.60E-08 4.49E-08 4.37E-08 4.27E-08 4.16E-08 4.06E-08 3.97E-08 S 3.39E-08 3.30E-08 3.22E-08 3.14E-08 3.06E-08 2.99E-08 2.92E-08 SSW 3.01 E-08 2.93E-08 2.86E-08 2.79E-08 2.72E-08 2.65E-08 2.59E-08 SW 3.17E-08 3.12E-08 3.07E-08 3.02E-08 2.98E-08 2.93E-08 2.89E-08 WSW 3.17E-08 3.12E-08 3.07E-08 3.03E-08 2.98E-08 2.94E-08 2.89E-08 W 3.38E-08 3.26E-08 3.15E-08 3.05E-08 2.95E-08 2.86E-08 2.77E-08 WNW 3.99E-08 3.84E-08 3.71 E-08 3.58E-08 3.46E-08 3.35E-08 3.24E-08 NW 3.60E-08 3.51E-08 3.43E-08 3.35E-08 3.28E-08 3.20E-08 3.13E-08 NNW 2.94E-08 2.84E-08 2.76E-08 2.67E-08 2.60E-08 2.52E-08 2.45E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 31 of 74 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/Q), sec/m3 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N *~ 45t~l:- 9 "* I:'_NQ Srj*l-- rtn S#* !"* Iff* =*

N NNE -.........

2.14E-08 z.- -r_'-uo n'.26-u0 2.20E-08 2.15E-08 2.10E-08 2.08E-08 2.03E-08 1.98E-08 1.93E-08 1.88E-08 1.84E-08 NE 2.04E-08 1.99E-08 1.95E-08 1.90E-08 1.86E-08 1.82E-08 1.78E-08 ENE 1.59E-08 1.55E-08 1.51 E-08 1.47E-08 1.44E-08 1.40E-08 1.37E-08 E 1.49E-08 1.45E-08 1.42E-08 1.38E-08 1.35E-08 1.31 E-08 1.28E-08 ESE 2.23E-08 2.18E-08 2.12E-08 2.07E-08 2.02E-08 1.97E-08 1.93E-08 SE 3.43E-08 3.33E-08 3.24E-08 3.15E-08 3.06E-08 2.98E-08 2.90E-08 SSE 3.88E-08 3.79E-08 3.71 E-08 3.60E-08 3.50E-08 3.41 E-08 3.32E-08 S 2.85E-08 2.79E-08 2.73E-08 2.65E-08 2.57E-08 2.50E-08 2.43E-08 SSW 2.53E-08 2.48E-08 2.42E-08 2.35E-08 2.28E-08 2.22E-08 2.16E-08 SW 2.85E-08 2.81 E-08 2.77E-08 2.69E-08 2.61 E-08 2.53E-08 2.46E-08 WSW 2.85E-08 2.81 E-08 2.77E-08 2.69E-08 2.61 E-08 2.53E-08 2.46E-08 W 2.68E-08 2.60E-08 2.53E-08 2.46E-08 2.39E-08 2.33E-08 2.26E-08 WNW 3.14E-08 3.05E-08 2.95E-08 2.87E-08 2.79E-08 2.71 E-08 2.64E-08 NW 3.07E-08 3.OOE-08 2.94E-08 2.86E-08 2.78E-08 2.70E-08 2.63E-08 NNW 2.38E-08 2.32E-08 2.26E-08 2.20E-08 2.14E-08 2.08E-08 2.03E-08 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 1 Page 32 of 74 Table 7 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (X/Q), sec/m 3 Miles Sector* 5.0 N 2.05E-08 NNE 1.79E-08 NE 1.74E-08 ENE 1.34E-08 E 1.25E-08 ESE 1.88E-08 SE 2.82E-08 SSE 3.23E-08 S 2.36E-08 SSW 2.1OE-08 SW 2.39E-08 WSW 2.39E-08 W 2.21 E-08 WNW 2.57E-08 NW 2.57E-08 NNW 1.98E-08 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 33 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles 0.2 0.3 0.4 0.5 0.6 0.7 Sector* 0.1 N 1.44E-09 4.89E-09 6.31 E-09 5.66E-09 5.00E-09 4.44E-09 4.OOE-09 NNE 2.25E-09 7.63E-09 9.79E-09 8.72E-09 7.59E-09 6.61 E-09 5.82E-09 NE 1.06E-09 3.60E-09 4.65E-09 4.17E-09 3.68E-09 3.27E-09 2.94E-09 ENE 9.73E-1 0 3.30E-09 4.25E-09 3.81 E-09 3.34E-09 2.95E-09 2.64E-09 E 7.84E-10 2.67E-09 3.45E-09 3.11E-09 2.77E-09 2.49E-09 2.27E-09 ESE 1.06E-09 3.61 E-09 4.70E-09 4.31 E-09 3.92E-09 3.63E-09 3.42E-09 SE 1.42E-09 4.87E-09 6.41 E-09 6.OOE-09 5.64E-09 5.40E-09 5.30E-09 SSE 1.19E-09 4.11E-09 5.46E-09 5.20E-09 5.OOE-09 4.92E-09 4.96E-09 S 9.90E-10 3.38E-09 4.42E-09 4.08E-09 3.75E-09 3.50E-09 3.34E-09 SSW 5.92E-1 0 2.02E-09 2.65E-09 2.45E-09 2.25E-09 2.11 E-09 2.03E-09 SW 3.23E-10 1.11E-09 1.48E-09 1.41E-09 1.35E-09 1.33E-09 1.34E-09 WSW 2.97E-1 0 1.03E-09 1.38E-09 1.33E-09 1.31 E-09 1.32E-09 1.36E-09 W 4.41 E-1 0 1.51 E-09 1.98E-09 1.85E-09 1.72E-09 1.64E-09 1.59E-09 WNW 6.23E-10 2.13E-09 1.78E-09 2.56E-09 2.35E-09 2.20E-09 2.1OE-09 NW 7.59E-10 2.59E-09 3.39E-09 3.13E-09 2.87E-09 2.69E-09 2.57E-09 NNW 1.94E-09 6.59E-09 8.48E-09 7.59E-09 6.66E-09 5.88E-09 5.25E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 34 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 3.47E-09 2.90E-09 2.39E-09 1.98E-09 1.67E-09 1.42E-09 1.23E-09 NNE 4.93E-09 4.OOE-09 3.24E-09 2.65E-09 2.20E-09 1.85E-09 1.58E-09 NE 2.56E-09 2.13E-09 1.76E-09 1.46E-09 1.23E-09 1.05E-09 9.02E-10 ENE 2.27E-09 1.88E-09 1.54E-09 1.27E-09 1.06E-09 9.03E-1 0 7.75E-1 0 E 2.01E-09 1.70E-09 1.41E-09 1.18E-09 1.OOE-09 8.59E-10 7.45E-10 ESE 3.12E-09 2.74E-09 2.32E-09 1.97E-09 1.69E-09 1.47E-09 1.29E-09 SE 5.02E-09 4.56E-09 3.94E-09 3.38E-09 2.94E-09 2.58E-09 2.29E-09 SSE 4.81 E-09 4.46E-09 3.89E-09 3.37E-09 2.95E-09 2.61 E-09 2.32E-09 S 3.09E-09 2.74E-09 2.34E-09 1.99E-09 1.72E-09 1.50E-09 1.32E-09 SSW 1.88E-09 1.67E-09 1.43E-09 1.22E-09 1.05E-09 9.18E-10 8.09E-10 SW 1.30E-09 1.21 E-09 1.05E-09 9.14E-1 0 8.OOE-1 0 7.06E-1 0 6.29E-1 0 WSW 1.35E-09 1.27E-09 1.1 2E-09 9.76E-1 0 8.59E-1 0 7.62E-1 0 6.81 E-1 0 W 1.49E-09 1.35E-09 1.16E-09 9.93E-10 8.61E-10 7.54E-10 6.66E-10 WNW 1.93E-09 1.71 E-09 1.46E-09 1.24E-09 1.07E-09 9.35E-1 0 8.22E-1 0 NW 2.37E-09 2.1OE-09 1.80E-09 1.53E-09 1.32E-09 1.15E-09 1.01E-09 NNW 4.52E-09 3.73E-09 3.06E-09 2.53E-09 2.12E-09 1.80E-09 1.54E-09 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 35 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 1.07E-09 9.36E-10 8.27E-10 7.36E-10 6.92E-10 6.30E-10 5.75E-10 NNE 1.36E-09 1.18E-09 1.03E-09 9.08E-10 8.58E-10 7.77E-10 7.07E-10 NE 7.84E-10 6.88E-10 6.08E-10 5.41E-10 5.09E-10 4.63E-10 4.23E-10 ENE 6.72E-10 5.88E-10 5.18E-10 4.59E-10 4.32E-10 3.93E-10 3.58E-10 E 6.51E-10 5.75E-10 5.1OE-10 4.56E-10 4.28E-10 3.90E-10 3.57E-10 ESE 1.14E-09 1.01E-09 9.06E-10 8.16E-10 7.64E-10 6.99E-10 6.43E-10 SE 2.04E-09 1.83E-09 1.65E-09 1.50E-09 1.40E-09 1.28E-09 1 .18E-09 SSE 2.08E-09 1.87E-09 1.70E-09 1.54E-09 1.44E-09 1.32E-09 1.22E-09 S 1.17E-09 1.04E-09 9.35E-10 8.44E-10 7.89E-10 7.23E-10 6.66E-10 SSW 7.17E-10 6.41E-10 5.76E-10 5.20E-10 4.86E-10 4.46E-10 4.1OE-10 SW 5.63E-10 5.08E-10 4.60E-10 4.18E-10 3.90E-10 3.59E-10 3.31E-10 WSW 6.12E-10 5.53E-10 5.02E-10 4.58E-10 4.26E-10 3.93E-10 3.63E-10 W 5.93E-10 5.32E-10 4.79E-10 4.34E-10 4.05E-10 3.72E-10 3.42E-10 WNW 7.28E-10 6.50E-10 5.84E-10 5.27E-10 4.92E-10 4.51E-10 4.15E-10 NW 8.97E-10 8.01E-10 7.20E-10 6.50E-10 6.07E-10 5.57E-10 5.12E-10 NNW 1.34E-09 1.17E-09 1.03E-09 9.12E-10 8.59E-10 7.81E-10 7.12E-10 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 36 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles Sector* 2.2 2.3 2.4 2.5 2.6 2.7 2.8 N 5.28E-10 4.86E-10 4.49E-10 4.17E-10 3.87E-10 3.61E-10 3.37E-10 NNE 6.46E-10 5.93E-10 5.46E-10 5.05E-10 4.68E-10 4.35E-10 4.06E-10 NE 3.88E-10 3.58E-10 3.30E-10 3.06E-10 2.85E-10 2.65E-10 2.48E-10 ENE 3.28E-10 3.02E-10 2.79E-10 2.58E-10 2.40E-10 2.24E-10 2.09E-10 E 3.28E-10 3.03E-10 2.80E-10 2.60E-10 2.42E-10 2.26E-10 2.11E-10 ESE 5.93E-10 5.48E-10 5.09E-10 4.73E-10 4.41E-10 4.12E-10 3.86E-10 SE 1.09E-09 1.01 E-09 9.43E-1 0 8.78E-1 0 8.21 E-1 0 7.68E-1 0 7.20E-10 SSE 1.13E-09 1.05E-09 9.78E-10 9.12E-10 8.52E-10 7.98E-10 7.48E-10 S 6.14E-10 5.69E-10 5.28E-10 4.92E-10 4.59E-10 4.29E-10 4.02E-10 SSW 3.79E-10 3.76E-10 3.90E-10 3.92E-10 3.62E-10 3.34E-10 3.1OE-10 SW 3.07E-10 2.98E-10 3.09E-10 3.18E-10 2.93E-10 2.71E-10 2.51E-10 WSW 3.36E-1 0 3.41 E-1 0 3.44E-1 0 3.58E-1 0 3.30E-1 0 3.05E-1 0 2.83E-1 0 W 3.17E-10 3.11E-10 3.09E-10 3.19E-10 2.94E-10 2.72E-10 2.53E-10 WNW 3.83E-10 3.86E-10 3.86E-10 3.89E-10 3.59E-10 3.45E-10 3.20E-10 NW 4.73E-10 4.38E-10 4.07E-10 3.78E-10 3.53E-10 3.30E-10 3.09E-10 NNW 6.53E-10 6.01E-10 5.55E-10 5.14E-10 4.77E-10 4.44E-10 4.15E-10 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 74 Page 37 of Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles 3.0 3.1 3.2 3.3 3.4 3.5 Sector* 2.9 N 3.16E-10 2.96E-10 2.78E-10 2.62E-10 2.47E-10 2.33E-10 2.20E-10 NNE 3.79E-10 3.55E-10 3.33E-10 3.13E-10 2.95E-10 2.78E-10 2.63E-10 NE 2.32E-10 2.18E-10 2.04E-10 1.92E-10 1.81E-10 1.71E-10 1.62E-10 ENE 1.95E-1 0 1.83E-1 0 1.72E-1 0 1.62E-1 0 1.52E-10 1.44E-1 0 1.36E-1 0 E 1.98E-10 1.86E-10 1.75E-10 1.64E-10 1.55E-10 1.46E-10 1.39E-10 ESE 3.62E-10 3.40E-10 3.20E-10 3.02E-10 2.85E-10 2.69E-10 2.55E-10 SE 6.76E-10 6.35E-10 5.98E-10 5.64E-10 5.33E-10 5.04E-10 4.77E-10 SSE 7.03E-10 6.62E-10 6.23E-10 5.88E-10 5.56E-10 5.26E-10 4.98E-10 S 3.77E-10 3.54E-10 3.33E-10 3.14E-10 2.97E-10 2.81E-10 2.66E-10 SSW 2.88E-1 0 2.68E-1 0 2.50E-1 0 2.34E-1 0 2.20E-1 0 2.06E-1 0 1.94E-1 0 SW 2.44E-10 2.27E-10 2.12E-10 1.98E-10 1.86E-10 1.75E-10 1.64E-10 WSW 2.63E-1 0 2.45E-1 0 2.29E-1 0 2.14E-1 0 2.01 E-1 0 1.89E-1 0 1.78E-1 0 W 2.47E-10 2.30E-10 2.15E-10 2.01E-10 1.88E-10 1.77E-10 1.66E-10 WNW 2.97E-10 2.76E-10 2.58E-10 2.41E-10 2.26E-10 2.12E-10 2.OOE-10 NW 2.90E-10 2.73E-10 2.57E-10 2.42E-10 2.26E-10 2.16E-10 2.04E-10 NNW 3.88E-10 3.64E-10 3.41E-10 3.21E-10 3.03E-10 2.86E-10 2.70E-10 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 38 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles 3.6 3.7 3.8 3.9 4.0 4.1 4.2 Sector*

N 2.09E-1 0 1.98E-1 0 1.88E-1 0 1.78E-1 0 1.70E-1 0 1.62E-1 0 1.54E-1 0 NNE 2.49E-1 0 2.36E-1 0 2.24E-1 0 2.13E-1 0 2.02E-1 0 1.93E-1 0 1.84E-1 0 NE 1.53E-10 1.45E-10 1.38E-10 1.31E-10 1.25E-10 1.19E-10 1.13E-10 ENE 1.29E-10 1.22E-10 1.16E-10 1.10E-10 1.05E-10 9.98E-11 9.51E-11 E 1.31E-10 1.24E-10 1.18E-10 1.12E-10 1.07E-10 1.02E-10 9.71E-11 ESE 2.42E-10 2.29E-10 2.18E-10 2.07E-10 1.97E-10 1.88E-10 1.79E-10 SE 4.53E-10 4.30E-10 4.08E-10 3.88E-10 3.69E-10 3.52E-10 3.36E-10 SSE 4.72E-10 4.48E-10 4.26E-10 4.05E-10 3.85E-10 3.67E-10 3.50E-10 S 2.52E-10 2.46E-10 2.34E-10 2.32E-10 2.34E-10 2.23E-10 2.12E-10 SSW 1.83E-1 0 1.73E-1 0 1.64E-1 0 1.59E-1 0 1.51 E-1 0 1.43E-1 0 1.36E-1 0 SW 1.55E-10 1.46E-10 1.38E-10 1.31E-10 1.24E-10 1.18E-10 1.12E-10 WSW 1.68E-10 1.62E-10 1.54E-10 1.46E-10 1.38E-10 1.31E-10 1.25E-10 W 1.57E-10 1.48E-10 1.40E-10 1.33E-10 1.26E-10 1.20E-10 1.14E-10 WNW 1.88E-10 1.78E-10 1.68E-10 1.59E-10 1.51E-10 1.44E-10 1.37E-10 NW 1.94E-10 1.86E-10 1.77E-10 1.73E-10 1.76E-10 1.67E-10 1.59E-10 NNW 2.56E-10 2.43E-10 2.30E-10 2.19E-10 2.08E-10 1.98E-10 1.89E-10 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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T TITLE:

MONTICELLO NUCLEAR GENERATING APPENDIXPLANT A ODCM-APP-A Revision 0 Page 39 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 1.47E-10 1.41 E-10 1.34E-10 1.29E-10 1.23E-10 1.18E-10 1.13E-10 NNE 1.75E-10 1.67E-10 1.60E-10 1.53E-1 0 1.47E-10 1.41 E-10 1.35E-1 0 NE 1.08E-10 1.03E-10 9.88E-11 9.45E-1 1 9.05E-11 8.68E-11 8.32E-11 ENE 9.08E-11 8.67E-11 8.29E-11 7.94E-1 1 7.60E-11 7.28E-1 1 6.99E-1 1 E 9.26E-11 8.85E-11 8.46E-1 1 8.1OE-11 7.75E-11 7.43E-1 1 7.13E-11 ESE 1.71 E-10 1.63E-10 1.56E-10 1.49E-10 1.43E- 10 1.37E-10 1.31 E-10 SE 3.20E-1 0 3.06E-1 0 2.92E-10 2.80E-1 0 2.68E-1 0 2.57E-1 0 2.46E-1 0 SSE 3.34E-1 0 3.19E-10 3.05E-1 0 2.92E-1 0 2.80E-10 2.68E-1 0 2.57E-1 0 S 2.08E-1 0 1.98E-1 0 1.89E-10 1.81 E-10 1.73E-10 1.66E-10 1.59E-1 0 SSW 1.30E-10 1.24E-10 1.18E-10 1.13E-10 1.08E-10 1.03E- 10 9.90E-11 SW 1.08E-10 1.03E-10 9.82E-11 9.39E-1 1 8.98E-11 8.59E-11 8.24E-11 WSW 1.19E-10 1.13E-10 1.08E-10 1.03E-1 0 9.88E-11 9.46E-1 1 9.06E-11 W 1.08E-10 1.03E-1 0 9.87E-1 1 9.43E-11 9.02E-1 1 8.64E-11 8.28E-1 1 WNW 1.30E-1 0 1.24E-10 1.18E-10 1.13E-10 1.08E-10 1.04E-10 9.94E-11 NW 1.58E-10 1.51 E-10 1.44E-1 0 1.38E-10 1.32E-1 0 1.26E-1 0 1.21 E-10 NNW 1.80E-1 0 1.72E- 10 1 smR=-In 1 r11i_ in S.. .. 0 1.65E-1 .....- ,~,' L- mIu I,'4Or--I 1.40aA IU UI 1 .*i -1U 0i Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 40 of 74 Table 8 Monticello Offgas Stack Dispersion Parameters for Long Term Elevated Releases

>500 Hrs/Yr or >150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/Q), m-2 Miles Sector* 5.0 N 1.09E-10 NNE 1.30E-10 NE 7.99E11 ENE 6.71 E-11 E 6.84E-11 ESE 1.26E-1 0 SE 2.36E-10 SSE 2.46E-1 0 S 1.52E-1 0 SSW 9.49E-11 SW 7.90E-11 WSW 8.69E-11 W 7.94E-11 WNW 9.53E-11 NW 1.16E-10 NNW 1.33E-10 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Pag 41of7 Revision 0 Table 9 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr Site Boundary Sector* x/Q (sec/m3) D/q (m- 2)

N 1.55E-07 9.93E-09 NNE 1.41 E-07 8.59E-09 NE 1.88E-07 1.16E-08 ENE 1.60E-07 6.04E-09 E 1.47E-07 9.15E-09 ESE SE SSE S

SSW SW WSW W 5.95E-08 2.91 E-09 WNW 1.39E-07 4.68E-09 NW NNW 2.33E-07 1.25E-08 Period of record: 9-1 -76 to 8-31 -78

Measured relevant to the Offgas Stack.

See appropriate offgas stack long term elevated release values.

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MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A Revision 0 Page 42 of 74 I1 I

Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr 3

For Standard Distances (As Measured from the Offgas Stack) (X/q), sec/m Miles 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Sector*

N 1.67E-07 1.85E-07 1.50E-07 1.18E-07 NNE 2.82E-07 2.50E-07 2.12E-07 1.69E-07 NE 7.93E-08 1.29E-07 1.21 E-07 1.08E-07 ENE 1.63E-07 1.87E-07 1.77E-07 1.46E-07 E 8.63E-08 1.47E-07 1.29E-07 1.07E-07 ESE 6.17E-08 1.02E-07 SE ** 1.17E-07 SSE 1.04E-07 S 7.75E-08 1.13E-07 SSW 7.15E-08 1.03E-07 SW 4.73E-08 8.22E-08 WSW 3.82E-08 6.85E-08 W ** 4.06E-08 7.49E-08 8.73E-08 WNW ** ** 4.56E-08 8.41 E-08 9.88E-08 NW 7.36E-08 1.08E-07 NNW 2.73E-07 2.57E-07 2.37E-07 1.94E-07 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Offgas Stack.

- Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 E Page 43 of 74 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<_500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/q),

sec/m3 Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 1.52E-07 1.77E-07 1.94E-07 1.82E-07 1.96E-07 1.87E-07 2.07E-07 NNE 1.83E-07 2.05E-07 2.18E-07 2.30E-07 2.15E-07 1.99E-07 2.13E-07 NE 1.30E-07 1.60E-07 1.67E-07 1.75E-07 1.76E-07 1.61 E-07 1.55E-07 ENE 1.62E-07 1.80E-07 1.75E-07 1.84E-07 1.96E-07 1.94E-07 1.91 E-07 E 1.38E-07 1.62E-07 1.65E-07 1.75E-07 1.72E-07 1.59E-07 1.77E-07 ESE 1.36E-07 1.62E-07 1.71 E-07 1.57E-07 1.62E-07 1.64E-07 1.70E-07 SE 1.56E-07 1.84E-07 1.98E-07 1.93E-07 2.02E-07 2.06E-07 2.46E-07 SSE 1.42E-07 1.78E-07 1.97E-07 2.50E-07 2.26E-07 2.35E-07 2.77E-07 S 1.55E-07 1.86E-07 2.07E-07 1.92E-07 2.08E-07 2.01 E-07 2.71 E-07 SSW 1.43E-07 1.64E-07 1.81 E-07 1.86E-07 1.83E-07 1.79E-07 2.01 E-07 SW 1.1 7E-07 1.45E-07 1.63E-07 1.77E-07 1.70E-07 1.74E-07 2.58E-07 WSW 9.91 E-07 1.25E-07 1.31 E-07 1.43E-07 1.62E-07 1.59E-07 2.45E-07 W 1.25E-07 1.56E-07 1.76E-07 1.86E-07 2.OOE-07 2.04E-07 2.77E-07 WNW 1.39E-07 1.71 E-07 1.89E-07 1.96E-07 2.04E-07 2.12E-07 2.79E-07 NNW 2.OOE-07 2.24E-07 2.4RE-n7 9 -q _1=-7 2.43E-07

.. . ... . 9--ViL--- ,".

'3 f .U i-_ ,

Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 44 of 74 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (yjq), sec/m3 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 2.56E-07 1.89E-07 2.1OE-07 2.05E-07 1.94E-07 1.88E-07 1.79E-07 NNE 2.59E-07 1.97E-07 2.23E-07 2.13E-07 1.97E-07 1.87E-07 1.77E-07 NE 1.71 E-07 1.63E-07 1.55E-07 1.86E-07 1.77E-07 1.74E-07 1.66E-07 ENE 1.82E-07 1.67E-07 2.13E-07 1.89E-07 1.74E-07 1.69E-07 1.64E-07 E 1.73E-07 1.61 E-07 1.51 E-07 1.88E-07 1.75E-07 1.66E-07 1.59E-07 ESE 1.84E-07 1.77E-07 1.70E-07 1.55E-07 1.52E-07 1.50E-07 SE 2.06E-07 2.05E-07 1.90E-07 2.OOE-07 2.01 E-07 1.89E-07 1.77E-07 SSE 2.25E-07 2.1OE-07 2.01E-07 2.21E-07 1.77E-07 1.78E-07 1.78E-07 S 2.1OE-07 2.38E-07 2.35E-07 2.18E-07 2.04E-07 2.97E-07 SSW 1.90E-07 1.84E-07 2.46E-07 2.34E-07 2.24E-07 2.20E-07 2.17E-07 SW 1.80E-07 1.74E-07 1.69E-07 1.87E-07 2.01 E-07 1.99E-07 1.91 E-07 WSW 1.78E-07 1.76E-07 1.72E-07 1.89E-07 2.OOE-07 1.99E-07 1.94E-07 W 2.14E-07 2.22E-07 2.50E-07 2.50E-07 2.32E-07 2.31E-07 2.23E-07 WNW 1.96E-07 1.87E-07 1.81E-07 1.97E-07 2.11E-07 2.09E-07 2.01E-07 NW 2.OOE-07 1.90E-07 2.59E-07 2.40E-07 2.28E-07 2.1 OE-07 2.01 E-07 NNW 2.28E-07 2.01 E-07 1.96E-07 1.92E-07 1.87E-07 1.81 E-07 1.74E-07 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Offgas Stack.

Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 45 of 74 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd) 3 For Standard Distances (As Measured from the Offgas Stack) (x/q), sec/M Miles Sector* 2.2 2.3 2.4 2.5 2.6 2.7 2.8 N 1.70E-07 1.66E-07 1.58E-07 1.54E-07 1.51 E-07 1.47E-07 1.37E-07 NNE 1.70E-07 1.62E-07 1.57E-07 1.51 E-07 1.46E-07 1.44E-07 1.38E-07 NE 1.60E-07 1.53E-07 1.53E-07 1.47E-07 1.40E-07 1.36E-07 1.30E-07 ENE 1.57E-07 1.50E-07 1.47E-07 1.44E-07 1.36E-07 1.33E-07 1.28E-07 E 1.49E-07 1.44E-07 1.36E-07 1.33E-07 1.27E-07 1.23E-07 1.1 7E-07 ESE 1.48E-07 1.46E-07 1.43E-07 1.38E-07 1.33E-07 1.28E-07 1.23E-07 SE 1.95E-07 1.68E-07 1.64E-07 1.61 E-07 1.55E-07 1.66E-07 1.60E-07 SSE 1.69E-07 1.58E-07 1.58E-07 1.50E-07 1.42E-07 1.35E-07 1.60E-07 S 1.65E-07 1.58E-07 1.51 E-07 1.46E-07 1.41 E-07 1.40E-07 1.65E-07 SSW 2.1OE-07 2.11E-07 2.12E-07 1.89E-07 1.82E-07 1.76E-07 1.71E-07 SW 1.81E-07 1.90E-07 1.93E-07 1.93E-07 2.32E-07 2.23E-07 2.11E-07 WSW 1.82E-07 1.86E-07 1.79E-07 1.72E07 1.90E-07 1.84E-07 2.12E-07 W 2.15E-07 2.18E-07 2.20E-07 2.19E-07 2.1OE-07 2.08E-07 2.05E-07 WNW 1.89E-07 1.89E-07 1.90E-07 1.93E-07 2.26E-07 2.18E-07 2.11E-07 NW 1.91 E-07 1.86E-07 1.80E-07 1.76E-07 1.72E-07 1.69E-07 1.64E-07 NNW 1.72E-07 1.68E-07 1.68E-07 1.59E-07 1.54E-07 1.45E-07 1.36E-07 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

rMONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 46 of 74 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd) 3 For Standard Distances (As Measured from the Offgas Stack) (X/q), sec/M Miles 2.9 3.0 3.1 3.2 3.3 3.4 3.5 Sector*

N 1.35E-07 1.34E-07 1.32E-07 1.30E-07 1.28E-07 1.25E-07 1.23E-07 NNE 1.30E-07 1.26E-07 1.22E-07 1.1 9E-07 1.15E-07 1.12E-07 1.09E-07 NE 1.22E-07 1.20E-07 1.1 6E-07 1.14E-07 1.11E-07 1.09E-07 1.06E-07 ENE 1.21E-07 1.81E-07 1.15E-07 1.13E-07 1.10E-07 1.07E-07 1.04E-07 E 1.13E-07 1.10E-07 1.05E-07 1.03E-07 1.01E-07 1.01E-07 9.17E-08 ESE 1 .19E-07 1.14E-07 1.08E-07 1.06E-07 1.03E-07 9.93E-08 9.89E-08 SE 1.31 E-07 1.33E-07 1.35E-07 1.32E-07 1.26E-07 1.20E-07 1.15E-07 SSE 1.30E-07 1.32E-07 1.34E-07 1.35E-07 1.31 E-07 1.26E-07 1.22E-07 S 1.63E-07 1.54E-07 1.46E-07 1.42E-07 1.34E-07 1.33E-07 1.32E-07 SSW 1.66E-07 1.57E-07 1.51 E-07 1.46E-07 1.39E-07 1.34E-07 1.31 E-07 SW 1.97E-07 1.82E-07 1.79E-07 1.71 E-07 1.64E-07 1.59E-07 1.54E-07 WSW 2.02E-07 1.95E-07 1.85E-07 1.77E-07 1.69E-07 1.62E-07 1.54E-07 W 2.01 E-07 1.92E-07 1.90E-07 1.84E-07 1.82E-07 1.78E-07 1.71 E-07 WNW 2.02E-07 1.96E-07 1.92E-07 1.90E-07 1.85E-07 1.78E-07 1.75E-07 NW 1.70E-07 1.50E-07 1.48E-07 1.47E-07 1.39E-07 1.37E-07 1.38E-07 NNW 1.31E-07 1.30E-07 1.27E-07 1.22E-07 1.19E-07 1.16E-07 1.13E-07 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Offgas Stack.

Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

TTEAPEDXARvsoMONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A Page 47 of 74 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<_500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (XJq),

sec/m3 Miles 3.6 3.7 3.8 3.9 4.0 4.1 Sector* 4.2 4.0 4.1 N 1.18E-07 1.15E-07 1.14E-07 1.11 E-07 1.08E-07 1.06E-07 1.05E-07 NNE 1.07E-07 1.05E-07 1.01 E-07 9.83E-08 9.61 E-08 9.38E-08 9.04E-08 NE 1.03E-07 1.01 E-07 9.84E-08 9.65E-08 9.20E-08 9.OOE-08 8.81 E-08 ENE 1.03E-07 1.01 E-07 9.56E-08 9.34E-08 9.07E-08 8.79E-08 8.58E-08 E 9.OOE-08 8.74E-08 8.37E-08 8.17E-08 7.94E-08 7.80E-08 7.64E-08 ESE 9.67E-08 9.46E-08 8.97E-08 8.91 E-08 8.79E-08 8.64E-08 8.45E-08 SE 1.1 OE-07 1.06E-07 1.06E-07 1.02E-07 9.89E-08 1.03E-07 9.99E-08 SSE 1.18E-07 1.15E-07 1.11E-07 1.08E-07 1.12E-07 1.1 OE-07 1.08E-07 S 1.27E-07 1.23E-07 1.21 E-07 1.17E-07 1.13E-07 1.10E-07 1.10E-07 SSW 1.27E-07 1.24E-07 1.21 E-07 1.17E-07 1.15E-07 1.13E-07 1.08E-07 SW 1.52E-07 1.46E-07 1.43E-07 1.43E-07 1.41 E-07 1.40E-07 1.38E-07 WSW 1.49E-07 1.43E-07 1.44E-07 1.43E-07 1.34E-07 1.33E-07 1.34E-07 W 1.66E-07 1.61 E-07 1.56E-07 1.49E-07 1.42E-07 1.39E-07 1.35E-07 WNW 1.73E-07 1.67E-07 1.63E-07 1.58E-07 1.54E-07 1.49E-07 1.45E-07 NW 1.34E-07 1.27E-07 1.25E-07 1.24E-07 1.21 E-07 1.19E-07 1 .17E-07 NNW 1.10E-07 1.07E-07 1.02E-07 Period of Record: 9-1-76 to 8-31-78 1.02E-07

.9.E...*7

Measured relevant to the Offgas Stack.

Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A AI Revision 0 I Page 48 of 74 Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (X/q), sec/m 3 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 1.01E-07 9.83E-08 9.37E-08 9.14E-08 8.97E-08 8.80E-08 8.61E-08 NNE 8.88E-08 8.71E-08 8.63E-08 8.42E-08 8.14E-08 8.OOE-08 7.84E-08 NE 8.69E-08 8.53E-08 8.40E-08 8.25E-08 8.19E-08 8.02E-08 7.81E-08 ENE 8.42E-08 8.26E-08 8.09E-08 7.87E-08 7.69E-08 7.55E-08 7.38E-08 E 7.33E-08 7.27E-08 7.02E-08 6.85E-08 6.71 E-08 6.56E-08 6.40E-08 ESE 8.27E-08 8.1 OE-08 7.40E-08 7.77E-08 7.61 E-08 7.46E-08 7.32E-08 SE 9.71E-08 9.47E-08 9.24E-08 9.01E-08 8.78E-08 8.56E-08 8.18E-08 SSE 1.07E-07 1.02E-07 1.02E-07 9.90E-08 9.66E-08 9.41 E-08 1.1 9E-07 S 1.06E-07 1.04E-07 1.02E-07 9.72E-08 9.63E-08 9.35E-08 9.03E-08 SSW 1.05E-07 1.03E-07 1.01 E-07 9.78E-08 9.46E-08 9.20E-08 9.OOE-08 SW 1.38E-07 1.37E-07 1.34E-07 1.30E-07 1.26E-07 1.24E-07 1.22E-07 WSW 1.31E-07 1.28E-07 1.28E-07 1.22E-07 1.20E-07 1.19E-07 1.18E-07 W 1.33E-07 1.28E-07 1.25E-07 1.24E-07 1.20E-07 1.17E-07 1.15E-07 WNW 1.43E-07 1.38E-07 1.35E-07 1.33E-07 1.33E-07 1.27E-07 1.25E-07 NW 1.14E-07 1.12E-07 1.11E-07 1.07E-07 1.04E-07 1.01E-07 9.74E-08 NNW 9.12E-08 8.89E-08 8.64E-08 8.31E-08 8.26E-08 8.08E-08 7.72E-08 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

- Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A Revision 0 -I Page 49 of 74 I'lI Table 10 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/q), sec/m3 Miles 5.0 Sector*

N 8.28E-08 NNE 7.56E-08 NE 7.58E-08 ENE 7.11 E-08 E 6.33E-08 ESE 7.16E-08 SE 8.1 OE-08 SSE 1.11E-07 S 8.84E-08 SSW 8.80E-08 SW 1.1 9E-07 WSW 1.13E-07 W 1.13E-07 WNW 1.21 E-07 NW 9.51 E-08 NNW 7.53E-08 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Offgas Stack.

Values less than the value for 0.4 miles.

See appropriate offgas stack long term elevated release values.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 50 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 HrsYr or <150 Hrs/Qtr For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles 0.3 0.4 0.5 0.6 0.7 Sector* 0.1 0.2 N ** 1.32E-08 1.31 E-08 9.45E-09 6.60E-09 NNE 2.39E-08 1.86E-08 1.39E-09 9.88E-09 NE 6.01 E-09 7.80E-09 6.24E-09 4.92E-09 ENE *** 1.31 E-08 1.14E-08 8.79E-09 6.20E-09 E 7.37E-09 9.17E-09 6.52E-09 4.58E-09 ESE 3.74E-09 5.28E-09 SE ** 6.26E-09 SSE 6.60E-09 S ** 4.41 E-09 5.43E-09 SSW 3.39E-09 4.09E-09 SW 2.30E-09 3.34E-09 WSW 2.16E-09 3.17E-09 W ** 2.22E-09 3.38E-09 3.35E-09 WNW 2.55E-09 3.89E-09 3.94E-09 NW ** 3.17E-09 4.01E-09 NNW 2.13E-08 1.68E-08 1.30E-08 9.18E-09 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 I r* : *J* IU I I*I" Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<_500 HrsYr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), M- 2 Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 7.46E-09 7.64E-09 7.08E-09 5.61 E-09 5.20E-09 4.30E-09 4.21 E-09 NNE 9.52E-09 9.50E-09 8.74E-09 7.97E-09 6.49E-09 5.28E-09 5.05E-09 NE 5.32E-09 5.92E-09 5.43E-09 4.98E-09 4.43E-09 3.60E-09 3.11 E-09 ENE 6.OOE-09 5.94E-09 5.01 E-09 4.56E-09 4.25E-09 3.75E-09 3.31 E-09 E 5.18E-09 5.40E-09 4.74E-09 4.36E-09 3.76E-09 3.08E-09 3.09E-09 ESE 6.16E-09 6.58E-09 5.98E-09 4.72E-09 4.30E-09 3.89E-09 3.66E-09 SE 7.39E-09 7.99E-09 7.50E-09 6.40E-09 5.96E-09 .5.50E-09 6.04E-09 SSE 7.58E-09 8.26E-09 7.59E-09 6.02E-09 6.29E-09 5.79E-09 6.12E-09 S 6.46E-09 6.88E-09 6.53E-09 5.17E-09 4.89E-09 4.19E-09 5.08E-09 SSW 4.90E-09 4.99E-09 4.71 E-09 4.17E-09 3.58E-09 3.12E-09 3.17E-09 SW 5.67E-09 4.25E-09 3.97E-09 3.65E-09 3.03E-09 2.74E-09 3.65E-09 WSW 3.83E-09 4.16E-09 3.58E-09 3.23E-09 3.12E-09 2.66E-09 3.64E-09 W 4.14E-09 4.59E-09 4.35E-09 3.87E-09 3.59E-09 3.20E-09 3.87E-09 WNW 4.86E-09 5.37E-09 5.09E-09 4.51 E-09 4.1 OE-09 3.77E-09 4.44E-09 NW 4.75E-09 5.16E-09 5.03E-09 4.25E-09 3.55E-09 3.43E-09 3.86E-09 NNW 8.37E-09 8.39E-09 7.94E-09 7.09E-09 5.96E-09 4.82E-09 6.18E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 52 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 HrsYr or <_150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 4.63E-09 3.13E-09 3.20E-09 2.90E-09 2.69E-09 2.48E-09 2.24E-09 NNE 5.50E-09 3.78E-09 4.02E-09 3.56E-09 3.27E-09 2.95E-09 2.66E-09 NE 3.1OE-09 2.65E-09 2.28E-09 2.48E-09 2.27E-09 2.08E-09 1.85E-09 ENE 2.86E-09 2.40E-09 2.81 E-09 2.31 E-09 2.08E-09 1.91 E-09 1.76E-09 E 2.73E-09 2.35E-09 2.05E-09 2.39E-09 2.18E-09 1.96E-09 1.81E-09 ESE 3.62E-09 3.20E-09 2.86E-09 2.38E-09 2.22E-09 2.1OE-09 SE 4.68E-09 4.28E-09 3.67E-09 3.61 E-09 3.49E-09 3.09E-09 2.75E-09 SSE 4.50E-09 3.93E-09 3.57E-09 3.70E-09 2.90E-09 2.79E-09 2.69E-09 S 3.59E-09 3.58E-09 3.34E-09 3.04E-09 2.74E-09 2.55E-09 SSW 2.73E-09 2.34E-09 2.81E-09 2.42E-09 2.17E-09 1.97E-09 1.80E-09 SW 2.32E-09 1.98E-09 1.72E-09 1.72E-09 1.72E-09 1.57E-09 1.40E-09 WSW 2.38E-09 2.07E-09 1.80E-09 1.77E-09 1.73E-09 1.58E-09 1.42E-09 W 2.70E-09 2.47E-09 2.47E-09 2.22E-09 1.92E-09 1.75E-09 1.57E-09 WNW 2.83E-09 2.38E-09 2.06E-09 2.02E-09 2.03E-09 1.84E-09 1.64E-09 NW 3.09E-09 2.70E-09 3.41E-09 2.94E-09 2.70E-09 2.35E-09 2.13E-09 NNW 4.19E-09 3.41E-09 3.09E-09 2.84E-09 2.74E-09 2.54E-09 2.33E-09 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

See appropriate long term values.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 53 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 HrsYr or <150 Hrs/Qtr (cont'd) 2 For Standard Distances (As Measured from the Offgas Stack) (D/q), M-Miles 2.3 2.4 2.5 2.6 2.7 2.8 Sector* 2.2 N 2.04E-09 1.90E-09 1.75E-09 1.64E-09 1.53E-09 1.42E-09 1.27E-09 NNE 2.45E-09 2.25E-09 2.1OE-09 1.95E-09 1.82E-09 1.73E-09 1.61E-09 NE 1.67E-09 1.51E-09 1.42E-09 1.30E-09 1.19E-09 1.11E-09 1.03E-09 ENE 1.61E-09 1.47E-09 1.38E-09 1.29E-09 1.18E-09 1.12E-09 1.04E-09 E 1.62E-09 1.51E-09 1.37E-09 1.30E-09 1.20E-09 1.12E-09 1.04E-09 ESE 1.99E-09 1.88E-09 1.78E-09 1.66E-09 1.55E-09 1.44E-09 1.34E-09 SE 2.89E-09 2.38E-09 2.24E-09 2.12E-09 1.97E-09 2.09E-09 1.97E-09 SSE 2.47E-09 2.24E-09 2.18E-09 2.01E-09 1.85E-09 1.72E-09 1.98E-09 S 2.06E-09 1.92E-09 1.80E-09 1.67E-09 1.54E-09 1.46E-09 1.64E-09 SSW 1.62E-09 1.64E-09 1.73E-09 1.57E-09 1.46E-09 1.37E-09 1.29E-09 SW 1.24E-09 1.27E-09 1.35E-09 1.40E-09 1.60E-09 1.48E-09 1.34E-09 WSW 1.24E-09 1.29E-09 1.26E-09 1.27E-09 1.35E-09 1.27E-09 1.42E-09 W 1.40E-09 1.40E-09 1.42E-09 1.47E-09 1.35E-09 1.27E-09 1.20E-09 WNW 1.43E-09 1.46E-09 1.48E-09 1.52E-09 1.68E-09 1.58E-09 1.44E-09 NW 1.93E-09 1.80E-09 1.67E-09 1.57E-09 1.45E-09 1.35E-09 1.25E-09 NNW 2.22E-09 2.09E-09 2.02E-09 1.85E-09 1.74E-09 1.58E-09 1.44E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 54 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 HrsYr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles 3.1 3.2 3.3 3.4 3.5 Sector* 2.9 3.0 N 1.20E-09 1.15E-09 1.08E-09 1.03E-09 9.77E-10 9.22E-10 8.74E-10 NNE 1.47E-09 1.39E-09 1.31E-09 1.25E-09 1.17E-09 1.11E-09 1.06E-09 NE 9.37E-10 8.90E-10 8.37E-10 7.98E-10 7.54E-10 7.19E-10 6.82E10 ENE 9.64E-10 9.11E-10 8.65E-10 8.28E-10 7.85E-10 7.41E-10 7.09E-10 E 9.72E-10 9.18E-10 8.55E-10 8.15E-10 7.80E-10 7.63E-10 6.77E-10 ESE 1.26E-09 1.18E-09 1.09E-09 1.04E-09 9.85E-10 9.24E-10 9.01E-10 SE 1.58E-09 1.57E-09 1.56E-09 1.49E-09 1.40E-09 1.31 E-09 1.23E-09 SSE 1.57E-09 1.55E-09 1.54E-09 1.52E-09 1.44E-09 1.36E-09 1.28E-09 S 1.56E-09 1.41 E-09 1.29E-09 1.21 E-09 1.1 OE-09 1.05E-09 1.01 E-09 SSW 1.22E-09 1.12E-09 1.04E-09 9.83E-1 0 9.12E-1 0 8.63E-1 0 8.24E-1 0 SW 1.25E-09 1.11E-09 1.05E-09 9.69E-10 8.96E-10 8.36E-10 7.83E-10 WSW 1.31E-09 1.22E-09 1.13E-09 1.05E-09 9.80E-10 9.14E-10 8.49E-10 W 1.19E-09 1.09E-09 1.04E-09 9.69E-10 9.26E-10 8.75E-10 8.11E-10 WNW 1.31E-09 1.21E-09 1.12E-09 1.06E-09 9.78E-10 9.OOE-10 8.43E-10 NW 1.23E-09 1.03E09 9.72E-1 0 9.26E-1 0 8.37E-1 0 7.94E-1 0 7.63E-1 0 NNW 1.35E-09 1.30E-09 1.25E-09 1.17E-09 1.11 E-09 1.06E-09 1.44E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 E Page 55 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<_500 HrsYr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 3.6 3.7 3.8 3.9 4.0 4.1 4.2 N 8.20E-1 0 7.85E-1 0 7.57E-1 0 7.26E-1 0 6.90E-10 6.64E-1 0 6.42E-1 0 NNE 1.01 E-09 9.76E-1 0 9.14E-10 8.72E-1 0 8.35E-1 0 7.98E-1 0 7.55E-1 0 NE 6.45E-1 0 6.15E-10 5.85E-1 0 5.60E-10 5.22E-1 0 4.99E-1 0 4.77E-1 0 ENE 6.83E-1 0 6.52E-1 0 6.06E-1 0 5.79E-1 0 5.51 E-1 0 5.22E-10 5.OOE-10 E 6.49E-1 0 6.16E-10 5.77E-1 0 5.51 E-1 0 5.25E-1 0 5.05E-1 0 4.85E-1 0 ESE 8.60E-1 0 8.21 E-10 7.64E-1 0 7.41 E-1 0 7.16E-10 6.91 E-1 0 6.61 E-1 0 SE 1.16E-09 1.10E-09 1.08E-09 1.02E-09 9.68E-1 0 9.93E-1 0 9.48E-10 SSE 1.21 E-09 1.15E-09 1.08E-09 1.02E-09 1.04E-09 9.94E-10 9.52E-1 0 S 9.44E-1 0 9.15E-10 8.76E-10 8.65E-10 8.63E-1 0 8.23E-1 0 7.95E-1 0 SSW 7.76E-1 0 7.35E-10 6.96E-1 0 6.69E-1 0 6.35E-1 0 6.08E-1 0 5.70E-10 SW 7.42E-1 0 6.82E-1 0 6.45E-1 0 6.21 E-10 5.90E-1 0 5.64E-1 0 5.37E-1 0 WSW 7.90E-10 7.45E-10 7.21 E-10 6.88E-1 0 6.21 E-1 0 5.94E-10 5.78E-10 W 7.69E-1 0 7.29E-10 6.93E-10 6.50E-1 0 6.08E-10 5.83E-10 5.56E-1 0 WNW 8.16E-10 7.73E-1 0 7.41 E-1 0 7.05E-1 0 6.72E-1 0 6.38E-1 0 6.11E-10 NW 7.24E-1 0 6.75E-1 0 6.45E-1 0 6.43E-1 0 6.48E-1 0 6.19E-10 5.95E-1 0 NNW 9.60E-1 0 9.1OE-10 8.53E-1 0 8.18E-10 7.82E-10 7.49E-1 0 7.22E-1 0 Period of Record: 9-1 -76 to 8-31 -78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT 0DCM-APP-A TITLE: APPENDIX A Revision 0 Page 56 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 HrsYr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 6.07E-10 5.80E-10 5.43E-10 5.20E-10 5.01E-10 4.83E-10 4.65E-10 NNE 7.27E-10 7.OOE-10 6.81E-10 6.52E-10 6.20E-10 5.98E-10 5.76E-10 NE 4.61E-10 4.42E-10 4.27E-10 4.1OE-10 3.99E-10 3.83E-10 3.66E-10 ENE 4.81E-10 4.63E-10 4.45E-10 4.24E-10 4.07E-10 3.92E-10 3.76E-10 E 4.55E-10 4.43E-10 4.19E-10 4.02E-10 3.86E-10 3.71E-10 3.55E-10 ESE 6.34E-10 6.06E-10 5.45E-10 5.59E-10 5.39E-10 5.19E-10 4.97E-10 SE 9.05E-10 8.70E-10 8.33E-10 8.01E-10 7.69E-10 7.38E-10 6.94E-10 SSE 9.43E-10 8.59E-10 8.39E-10 8.03E-10 7.73E-10 7.40E-10 9.18E-10 S 7.75E-10 7.42E-10 7.1OE-10 6.65E-10 6.49E-10 6.21E-10 5.91E-10 SSW 5.39E-10 5.15E-10 4.91E-10 4.69E-10 4.47E-10 4.28E-10 4.13E-10 SW 5.23E-10 5.02E-10 4.74E-10 4.53E-10 4.35E-10 4.22E-10 4.08E-10 WSW 5.46E-10 5.16E-10 4.98E-10 4.69E-10 4.55E-10 4.45E-10 4.34E-10 W 5.35E-10 5.09E-10 4.89E-10 4.77E-10 4.53E-10 4.36E-10 4.20E-10 WNW 5.91E-10 5.61E-10 5.41E-10 5.24E-10 5.16E-10 4.87E-10 4.69E-10 NW 5.88E-10 5.66E-10 5.44E-10 5.17E-10 4.96E-10 4.72E-10 4.48E-10 NNW 6.90E-10 6.60E-10 6.30E-10 5.96E-10 5.83E-10 5.61E-10 5.28E-10 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 1Page 57 of 74 Table 11 Monticello Offgas Stack Dispersion Parameters for Short Term Elevated Releases

<500 HrsYr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 5.0 N 4.39E-10 NNE 5.46E-10 NE 3.48E-10 ENE 3.56E-1 0 E 3.45E-10 ESE 4.80E-10 SE 6.78E-10 SSE 8.45E-10 S 5.70E-10 SSW 3.98E-10 SW 3.92E-1 0 WSW 4.12E-10 W 4.05E-10 WNW 4.48E-10 NW 4.31E-10 NNW 5.06E-10 Period of Record: 9-1 -76 to 8-31 -78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPEN DIX A Revision 0 Page 58 of 74 Table 12 Monticello Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases <500 Hrs/Yr or <150 Hrs/Qtr Distance x/q (sec/m)3 D/q (m-2)

Sector* Miles Meters No Decay Undepleted N 0.51 821. 5.18E-06 7.19E-08 NNE 0.58 933. 3.51 E-06 5.02E-08 NE 0.65 1046. 2.33E-06 2.93E-08 ENE 0.83 1336. 1.82E-06 1.69E-08 E 0.59 950. 3.67E-06 3.90E-08 ESE 0.59 950. 4.95E-06 6.51 E-08 SE 0.61 982. 4.96E-06 6.49E-08 SSE 0.43 692. 8.06E-06 1.1 8E-07 S 0.34 547. 6.92E-06 9.30E-08 SSW 0.32 515. 5.92E-06 7.04E-08 SW 0.32 515. 6.31E-06 8.24E-08 WSW 0.35 563. 4.91 E-06 5.50E-08 W 0.48 772. 3.38E-06 3.82E-08 WNW 0.68 1094. 2.94E-06 2.88E-08 NW 0.43 692. 5.70E-06 7.09E-08 NNW 0.53 853. 4.44E-06 6.09E-08 Period of Record: 9-1 -76 to 8-31 -78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 E Page 59 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr For Standard Distances (As Measured from the Offgas Stack) (X/q), sec/m 3 Miles Sector* 0.1 0.2 0.3 0.4 0.5 0.6 0.7 N 7.30E-05 2.19E-05 1.10E-05 7.14E-06 5.28E-06 4.19E-06 3.46E-06 NNE 5.81 E-05 1.77E-05 8.96E-06 5.84E-06 4.23E-06 3.34E-06 2.79E-06 NE 4.26E-05 1.29E-05 6.69E-06 4.33E-06 3.19E-06 2.54E-06 2.16E-06 ENE 4.27E-05 1.29E-05 6.65E-06 4.32E-06 3.15E-06 2.53E-06 2.16E-06 E 5.76E-05 1.73E-05 9.22E-06 6.20E-06 4.51 E-06 3.63E-06 3.04E-06 ESE 7.80E-05 2.30E-05 1.24E-05 8.28E-06 6.16E-06 4.84E-06 4.01 E-06 SE 8.52E-05 2.48E-05 1.31 E-05 8.85E-06 6.46E-06 5.08E-06 4.18E-06 SSE 8.87E-05 2.60E-05 1.36E-05 8.91 E-06 6.53E-06 5.15E-06 4.22E-06 S 4.89E-05 1.47E-05 7.95E-06 5.35E-06 3.95E-06 3.17E-06 2.63E-06 SSW 4.04E-05 1.19E-05 6.58E-06 4.38E-06 3.34E-06 2.80E-06 2.46E-06 SW 4.37E-05 1.34E-05 7.26E-06 4.76E-06 3.62E-06 2.97E-06 2.62E-06 WSW 3.65E-05 1.09E-05 6.13E-06 4.11 E-06 3.17E-06 2.70E-06 2.43E-06 W 4.07E-05 1.23E-05 6.47E-06 4.32E-06 3.19E-06 2.67E-06 2.35E-06 WNW 5.53E-05 1.65E-05 8.74E-06 5.74E-06 4.22E-06 3.37E-06 2.85E-06 NW 6.25E-05 1.85E-05 9.62E-06 6.32E-06 4.65E-06 3.76E-06 3.15E-06 NNW 7.11 E-05 2.11E-05 1.04E-05 6.70E-06 4.78E-06 3.76E-06 3.15E-06 Period of Record: 9-1 -76 to 8-31 -78 Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 60 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (x/q), sec/m3 Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 2.84E-06 2.43E-06 2.05E-06 1.79E-06 1.61 E-06 1.46E-06 1.31 E-06 NNE 2.33E-06 2.02E-06 1.71E-06 1.51E-06 1.37E-06 1.24E-06 1.12E-06 NE 1.83E-06 1.58E-06 1.37E-06 1.21E-06 1.11E-06 9.99E-06 9.23E-06 ENE 1.87E-06 1.64E-06 1.46E-06 1.31 E-06 1.20E-06 1.11 E-06 1.04E-06 E 2.51 E-06 2.18E-06 1.87E-06 1.64E-06 1.50E-06 1.38E-06 1.26E-06 ESE 3.34E-06 2.77E-06 2.38E-06 2.07E-06 1.80E-06 1.59E-06 1.44E-06 SE 3.42E-06 2.82E-06 2.39E-06 2.07E-06 1.78E-06 1.57E-06 1.40E-06 SSE 3.47E-06 2.89E-06 2.43E-06 2.12E-06 1.86E-06 1.64E-06 1.47E-06 S 2.27E-06 1.96E-06 1.70E-06 1.51 E-06 1.38E-06 1.27E-06 1 .15E-06 SSW 2.18E-06 1.93E-06 1.74E-06 1.52E-06 1.48E-06 1.33E-06 1.21E-06 SW 2.26E-06 1.99E-06 1.81 E-06 1.58E-06 1.44E-06 1.32E-06 1.21 E-06 WSW 2.18E-06 1.94E-06 1.82E-06 1.63E-06 1.48E-06 1.39E-06 1.29E-06 W 2.07E-06 1.87E-06 1.67E-06 1.52E-06 1.41E-06 1.29E-06 1.19E-06 WNW 2.47E-06 2.15E-06 1.86E-06 1.68E-06 1.52E-06 1.37E-06 1.26E-06 NW 2.60E-06 2.22E-06 1.89E-06 1.64E-06 1.49E-06 1.34E-06 1.22E-06 NNW 2.64E-06 2.25E-06 1.90E-06 1.68E-06 1.50E-06 1.37E-06 1.25E-06 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 61 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (X/q),

Miles sec/m 3 I

Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 1.28E-06 1.15E-06 1.05E-06 9.60E-07 9.OOE-07 8.28E-07 7.67E-07 NNE 1.11E-06 9.94E-07 9.14E-07 8.44E-07 7.91E-07 7.31E-07 6.94E-07 NE 8.63E-07 7.69E-07 7.26E-07 7.09E-07 6.71 E-07 6.31 E-07 6.08E-07 ENE 9.50E-07 9.08E-07 8.65E-07 8.22E-07 7.80E-07 7.31 E-07 7.OOE-07 E 1.15E-06 1.06E-06 1.02E-06 9.40E-07 8.72E-07 8.20E-07 7.72E-07 ESE 1.31 E-06 1.16E-06 1.07E-06 1.03E-06 9.41 E-07 8.73E-07 8.08E-07 SE 1.26E-06 1.15E-06 1.06E-06 1.01E-06 9.48E-07 8.74E-07 8.19E-07 SSE 1.33E-06 1.17E-06 1.09E-06 1.05E-06 9.69E-07 9.01E-07 8.34E-07 S 1.13E-06 1.OOE-06 9.21E-07 8.55E-07 7.94E-07 7.33E-07 6.96E-07 SSW 1.19E-06 1.12E-06 1.08E-06 1.04E-06 1.02E-06 1.02E-06 9.95E-07 SW 1.18E-06 1.09E-06 1.06E-06 1.01E-06 9.62E-07 9.53E-07 9.34E-07 WSW 1.27E-06 1.21 E-06 1.1 6E-06 1.09E-06 1.05E-06 1.04E-06 1.02E-06 W 1.19E-06 1.12E-06 1.06E-06 1.02E-06 1.01E-06 9.95E-07 9.91E-07 WNW 1.25E-06 1.16E-06 1.11E-06 1.06E-06 1.02E-06 1.01E-06 9.90E-07 NW 1.09E-06 9.91E-07 9.57E-07 8.87E-07 8.18E-07 7.65E-07 7.25E-07 NNW 1.24E-06 1.12E-06 1.03E-06 9.46E-07 8.85E-07 8.17E-07 7.74E-07 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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I1 MONTICELLO NUCLEAR GENERATING PLANT 0UUMW-A FF-A Revision 0 TITLE: APPENDIX A Page 62 of 74 fiý Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd) sec/m 3 For Standard Distances (As Measured from the Offgas Stack) (x/q),

Miles 2.5 2.6 2.7 2.8 Sector* 2.2 2.3 2.4 N 7.21 E-07 6.79E-07 6.38E-07 6.1 OE-07 5.92E-07 5.77E-07 5.62E-07 NNE 6.47E-07 6.14E-07 5.79E-07 5.45E-07 5.26E-07 4.99E-07 4.80E-07 NE 5.81 E-07 5.55E-07 5.23E-07 5.11E-07 4.86E-07 4.63E-07 4.47E-07 ENE 6.68E-07 6.41 E-07 6.1 OE-07 5.90E-07 5.62E-07 5.41 E-07 5.22E-07 E 7.25E-07 6.92E-07 6.51 E-07 6.19E-07 5.74E-07 5.53E-07 5.35E-07 ESE 7.53E-07 7.07E-07 6.62E-07 6.25E-07 5.91 E-07 5.56E-07 5.28E-07 SE 7.76E-07 7.36E-07 7.02E-07 6.75E-07 6.37E-07 6.04E-07 5.74E-07 SSE 7.74E-07 7.28E-07 6.87E-07 6.46E-07 6.1OE-07 5.77E-07 5.51E-07 S 6.44E-07 6.08E-07 5.80E-07 5.54E-07 5.40E-07 5.25E-07 5.14E-07 SSW 9.71 E-07 9.89E-07 9.88E-07 9.58E-07 9.03E-07 8.47E-07 8.1 OE-07 SW 9.09E-07 9.03E-07 8.97E-07 8.65E-07 8.24E-07 7.90E-07 7.65E-07 WSW 9.86E-07 9.81 E-07 9.76E-07 9.48E-07 8.87E-07 8.35E-07 7.92E-07 W 9.66E-07 9.80E-07 9.78E-07 9.56E-07 9.12E-07 8.87E-07 8.66E-07 WNW 9.90E-07 9.88E-07 9.97E-07 9.75E-07 9.54E-07 9.43E-07 9.29E-07 NW 6.91 E-07 6.47E-07 6.07E-07 5.89E-07 5.72E-07 5.60E-07 5.51 E-07 NNW 7.27E-07 6.76E-07 6.47E-07 6.28E-07 5.95E-07 5.74E-07 5.52E-07 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 E Page 63 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (yjq), sec/m3 Miles Sector* 2.9 3.0 3.1 3.2 3.3 3.4 3.5 N 5.48E-07 5.29E-07 5.16E-07 5.02E-07 4.91 E-07 4.99E-07 4.82E-07 NNE 4.65E-07 4.49E-07 4.30E-07 4.15E-07 3.98E-07 3.83E-07 3.71 E-07 NE 4.31 E-07 4.13E-07 3.96E-07 3.82E-07 3.66E-07 3.51 E-07 3.39E-07 ENE 5.06E-07 4.87E-07 4.64E-07 4.52E-07 4.36E-07 4.25E-07 4.14E-07 E 5.13E-07 5.OOE-07 4.80E-07 4.62E-07 4.45E-07 4.27E-07 4.09E-07 ESE 5.01 E-07 4.74E-07 4.57E-07 4.36E-07 4.15E-07 3.99E-07 3.83E-07 SE 5.51 E-07 5.28E-07 5.05E-07 4.78E-07 4.55E-07 4.35E-07 4.16E-07 SSE 5.27E-07 5.06E-07 4.85E-07 4.59E-07 4.44E-07 4.26E-07 4.1 0E-07 S 5.03E-07 4.91 E-07 5.05E-07 4.93E-07 4.96E-07 4.76E-07 4.67E-07 SSW 7.70E-07 7.34E-07 7.03E-07 6.76E-07 6.48E-07 6.25E-07 5.97E-07 SW 7.38E-07 7.09E-07 6.87E-07 6.61 E-07 6.43E-07 6.16E-07 5.94E-07 WSW 7.52E-07 7.13E-07 6.84E-07 6.52E-07 6.24E-07 6.02E-07 5.73E-07 W 8.43E-07 8.16E-07 7.91 E-07 7.64E-07 7.44E-07 7.09E-07 6.90E-07 WNW 9.07E-07 8.94E-07 8.62E-07 8.44E-07 8.18E-07 8.OOE-07 7.84E-07 NW 5.34E-07 5.22E-07 5.28E-07 5.15E-07 5.16E-07 5.04E-07 4.97E-07 NNW 5.28E-07 5.08E-07 4.93E-07 ,4.-r%::::.t7 4...4.74 .E-0l7 F- A A.'2,Q C-- IA UI U Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 64 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (X/q), sec/m 3 Miles Sector* 3.6 3.7 3.8 3.9 4.0 4.1 4.2 N 4.65E-07 4.49E-07 4.32E-07 4.19E-07 4.06E-07 3.95E-07 3.83E-07 NNE 3.58E-07 3.47E-07 3.37E-07 3.25E-07 3.16E-07 3.18E-07 3.08E-07 NE 3.29E-07 3.18E-07 3.1OE-07 3.01E-07 2.93E-07 2.90E-07 2.77E-07 ENE 4.02E-07 3.90E-07 3.80E-07 3.72E-07 3.60E-07 3.55E-07 3.46E-07 E 3.97E-07 3.83E-07 3.72E-07 3.74E-07 3.66E-07 3.55E-07 3.44E-07 ESE 3.71E-07 3.57E-07 3.42E-07 3.37E-07 3.28E-07 3.17E-07 3.06E-07 SE 4.01 E-07 3.86E-07 3.70E-07 3.61 E-07 3.48E-07 3.44E-07 3.42E-07 SSE 3.92E-07 3.78E-07 3.68E-07 3.66E-07 3.52E-07 3.41 E-07 3.29E-07 S 4.49E-07 4.43E-07 4.36E-07 4.29E-07 4.22E-07 4.16E-07 4.12E-07 SSW 5.79E-07 5.58E-07 5.49E-07 5.38E-07 5.25E-07 5.14E-07 5.02E-07 SW 5.80E-07 5.64E-07 5.48E-07 5.28E-07 5.15E-07 5.04E-07 4.94E-07 WSW 5.61E-07 5.59E-07 5.50E-07 5.35E-07 5.23E-07 5.13E-07 4.90E-07 W 6.66E-07 6.40E-07 6.16E-07 5.94E-07 5.73E-07 5.54E-07 5.36E-07 WNW 7.52E-07 7.22E-07 6.90E-07 6.65E-07 6.37E-07 6.19E-07 5.97E-07 NW 4.79E-07 4.71 E-07 4.66E-07 4.57E-07 4.49E-07 4.41 E-07 4.38E-07 NNW 4.07E-07 3.95E-07 3.86E-07 3.72E-07 3.68E-07 3.57E-07 3.51 E-07 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 65 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (//q), sec/M 3 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 3.65E-07 3.55E-07 3.41 E-07 3.33E-07 3.25E-07 3.20E-07 3.12E-07 NNE 3.08E-07 3.OOE-07 2.85E-07 2.79E-07 2.72E-07 2.66E-07 2.59E-07 NE 2.79E-07 2.69E-07 2.53E-07 2.53E-07 2.48E-07 2.41 E-07 2.36E-07 ENE 3.36E-07 3.29E-07 3.12E-07 3.07E-07 3.OOE-07 2.98E-07 2.91 E-07 E 3.37E-07 3.28E-07 3.19E-07 3.11E-07 3.02E-07 2.95E-07 2.85E-07 ESE 2.98E-07 2.89E-07 2.80E-07 2.71 E-07 2.63E-07 2.56E-07 2.48E-07 SE 3.32E-07 3.20E-07 3.1OE-07 3.01 E-07 2.92E-07 2.83E-07 2.75E-07 SSE 3.21 E-07 3.11E-07 3.02E-07 2.92E-07 2.84E-07 2.75E-07 2.68E-07 S 4.03E-07 3.94E-07 3.87E-07 3.76E-07 3.65E-07 3.53E-07 3.43E-07 SSW 4.92E-07 4.81E-07 4.71E-07 4.57E-07 4.39E-07 4.26E-07 4.11E-07 SW 4.84E-07 4.79E-07 4.69E-07 4.54E-07 4.39E-07 4.25E-07 4.12E-07 WSW 4.89E-07 4.77E-07 4.66E-07 4.50E-07 4.35E-07 4.24E-07 4.11 E-07 W 5.19E-07 5.03E-07 4.87E-07 4.73E-07 4.56E-07 4.43E-07 4.25E-07 WNW 5.78E-07 5.59E-07 5.41 E-07 5.25E-07 5.09E-07 4.92E-07 4.78E-07 NW 4.29E-07 4.20E-07 4.11E-07 4.OOE-07 3.88E-07 3.77E-07 3.66E-07 NNW 3.45E-07 3.32E-07 3.22E-07 3.15E-07 3.07E-07 2.98E-07 2.91E-07 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 66 of 74 Table 13 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd) 3 For Standard Distances (As Measured from the Offgas Stack) (Xfq), sec/m Miles Sector* 5.0 N 3.03E-07 NNE 2.52E-07 NE 2.30E-07 ENE 2.84E-07 E 2.82E-07 ESE 2.41 E-07 SE 2.67E-07 SSE 2.62E-07 S 4.67E-07 SSW 4.OOE-07 SW 3.99E-07 WSW 3.99E-07 W 4.12E-07 WNW 4.66E-07 NW 3.52E-07 NNW 2.78E-07 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Reactor Vent.

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MONTICELLO NUCLEAR GENERATING PLANT ODIM-APP-A TITLE: APPENDIX A Revisionj0 E ! Page 67 of 74 Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles 0.1 0.2 0.7 Sector* 0.3 0.4 0.5 0.6 0.7 0.6 0.7 N 6.91 E-07 2.69E-07 1.52E-07 1.01 E-07 7.36E-08 5.53E-08 4.28E-08 NNE 5.55E-07 2.24E-07 1.30E-07 8.81 E-08 6.33E-08 4.71 E-08 3.65E-08 NE 3.90E-07 1.58E-07 9.37E-08 6.24E-08 4.48E-08 3.32E-08 2.59E-08 ENE 3.50E-07 1.43E-07 8.49E-08 5.71 E-08 4.08E-08 3.02E-08 2.33E-08 E 4.63E-07 1.86E-07 1.10E-07 7.39E-08 5.16E-08 3.82E-08 2.91 E-08 ESE 8.49E-07 3.27E-07 1.86E-07 1.21 E-07 8.62E-08 6.33E-08 4.88E-08 SE 9.41 E-07 3.56E-07 1.96E-07 1.29E-07 9.01 E-08 6.69E-08 5.19E-08 SSE 9.60E-07 3.67E-07 2.02E-07 1.32E-07 9.36E-08 6.99E-08 5.40E-08 S 4.50E-07 1.79E-07 1.06E-07 7.18E-08 5.11E-08 3.80E-08 2.88E-08 SSW 3.27E-07 1.30E-07 7.81 E-08 5.13E-08 3.67E-08 2.75E-08 2.15E-08 SW 4.13E-07 1.67E-07 9.51 E-08 6.02E-08 4.24E-08 3.12E-08 2.46E-08 WSW 2.82E-07 1.1 4E-07 6.90E-08 4.53E-08 3.27E-08 2.46E-08 1.94E-08 W 3.06E-07 1.25E-07 7.41 E-08 5.02E-08 3.55E-08 2.68E-08 2.1OE-08 WNW 4.25E-07 1.69E-07 9.89E-08 6.61 E-08 4.73E-08 3.52E-08 2.73E-08 NW 5.40E-07 2.12E-07 1.21 E-07 7.91 E-08 5.61 E-08 4.23E-08 3.28E-08 NNW 6.42E-07 2.53E-07 1.42E-07 9.39E-08 6.65E-08 4.95E-08 3.87E-08 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 68 of 74 Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 0.8 0.9 1.0 1.1 1.2 1.3 1.4 N 3.25E-08 2.57E-08 1.99E-08 1.61 E-08 1.34E-08 1.13E-08 9.77E-09 NNE 2.79E-08 2.22E-08 1.71E-08 1.39E-08 1.16E-08 9.77E-09 8.45E-09 NE 1.99E-08 1.56E-08 1.23E-08 1.OOE-08 8.52E-09 7.15E-09 6.20E-09 ENE 1.80E-08 1.41E-08 1.12E-08 9.11E-09 7.57E-09 6.45E-09 5.55E09 E 2.17E-08 1.70E-08 1.33E-08 1.07E-08 9.01E-09 7.69E-09 6.56E-09 ESE 3.78E-08 2.92E-08 2.35E-08 1.93E-08 1.59E-08 1.34E-08 1.1 6E-08 SE 3.99E-08 3.1OE-08 2.48E-08 2.04E-08 1.67E-08 1.40E-08 1.20E-08 SSE 4.16E-08 3.26E-08 2.57E-08 2.12E-08 1.76E-08 1.48E-08 1.27E-08 S 2.26E-08 1.78E-08 1.41 E-08 1.16E-08 9.75E-09 8.85E-09 7.48E-09 SSW 1.69E-08 1.34E-08 1.10E-08 9.02E-09 7.60E-09 6.52E-09 5.84E-09 SW 1.89E-08 1.51 E-08 1.25E-08 1.01 E-08 8.52E-09 7.27E-09 6.61 E-09 WSW 1.52E-08 1.20E-08 1.01 E-08 8.20E-09 6.85E-09 5.94E-09 5.35E-09 W 1.62E-08 1.31 E-08 1.04E-08 8.64E-09 7.29E-09 6.19E-09 5.49E-09 WNW 2.16E-08 1.72E-08 1.36E-08 1.12E-08 9.47E-09 7.95E-09 7.18E-09 NW 2.49E-08 1.97E-08 1.55E-08 1.26E-08 1.07E-08 9.05E-09 7.82E-09 NNW 3.OOE-08 2.36E-08 1.82E-08 1.49E-08 1.22E-08 1.05E-08 9.21 E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 69 of 74 '~I'l Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), M- 2 Miles Sector* 1.5 1.6 1.7 1.8 1.9 2.0 2.1 N 8.90E-09 7.61E-09 6.62E-09 5.81E-09 5.23E-09 4.63E-09 4.13E-09 NNE 7.75E-09 6.61E-09 5.79E-09 5.1OE-09 4.56E-09 4.07E-09 3.71E-09 NE 5.46E-09 4.54E-09 4.02E-09 3.69E-09 3.30E-09 2.93E-09 2.48E-09 ENE 4.71E-09 4.19E-09 3.73E-09 3.33E-09 2.98E-09 2.64E-09 2.40E-09 E 5.63E-09 4.93E-09 4.49E-09 3.96E-09 3.53E-09 3.18E-09 2.88E-09 ESE 1.01 E-08 8.60E-09 7.60E-09 7.07E-09 6.28E-09 5.64E-09 5.07E-09 SE 1.03E-08 9.OOE-09 7.94E-09 7.17E-09 6.48E-09 5.74E-09 5.17E-09 SSE 1.1 OE-08 9.30E-09 8.32E-09 7.72E-09 6.89E-09 6.20E-09 5.56E-09 S 6.89E-09 5.81E-09 5.11E-09 4.54E-09 4.06E-09 3.61E-09 3.30E-09 SSW 5.34E-09 4.70E-09 4.14E-09 3.63E-09 3.26E-09 3.21 E-09 2.88E-09 SW 6.60E-09 5.31 E-09 4.72E-09 4.14E-09 3.66E-09 3.56E-09 3.24E-09 WSW 4.91 E-09 4.44E-09 3.92E-09 3.40E-09 3.03E-09 3.03E-09 2.76E-09 W 5.07E-09 4.44E-09 3.82E-09 3.36E-09 3.07E-09 2.96E-09 2.71 E-09 WNW 6.67E-09 5.78E-09 5.06E-09 4.43E-09 3.92E-09 3.71 E-09 3.34E-09 NW 6.67E-09 5.73E-09 5.26E-09 4.65E-09 4.11 E-09 3.68E-09 3.35E-09 NNW 8.53E-09 7.30E-09 6.36E-09 5.58E-09 5.OOE-09 4.42E-09 4.03E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 70 of 74 Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles 2.3 2.4 2.5 2.6 2.7 2.8 Sector* 2.2 N 3.75E-09 3.42E-09 3.11 E-09 2.88E-09 2.68E-09 2.53E-09 2.38E-09 NNE 3.34E-09 3.06E-09 2.79E-09 2.55E-09 2.38E-09 2.20E-09 2.06E-09 NE 2.43E-09 2.21 E-09 2.02E-09 1.89E-09 1.74E-09 1.61 E-09 1.51 E-09 ENE 2.18E-09 2.03E-09 1.85E-09 1.70E-09 1.57E-09 1.46E-09 1.36E-09 E 2.61 E-09 2.41 E-09 2.20E-09 2.02E-09 1.82E-09 1.71 E-09 1.61 E-09 ESE 4.60E-09 4.21 E-09 3.84E-09 3.54E-09 3.28E-09 3.01 E-09 2.80E-09 SE 4.71 E-09 4.43E-09 4.07E-09 3.79E-09 3.49E-09 3.24E-09 3.02E-09 SSE 5.01 E-09 4.58E-09 4.21 E-09 3.86E-09 3.55E-09 3.28E-09 3.06E-09 S 2.95E-09 2.70E-09 2.50E-09 2.32E-09 2.15E-09 2.OOE-09 1.86E-09 SSW 2.60E-09 2.45E-09 2.28E-09 2.06E-09 1.90E-09 1.75E-09 1.64E-09 SW 2.93E-09 2.72E-09 2.53E-09 2.29E-09 2.11E-09 1.96E-09 1.84E-09 WSW 2.48E-09 2.31 E-09 2.16E-09 1.98E-09 1.81 E-09 1.68E-09 1.56E-09 W 2.44E-09 2.29E-09 2.12E-09 1.93E-09 1.77E-09 1.66E-09 1.57E-09 WNW 3.09E-09 2.85E-09 2.67E-09 2.43E-09 2.25E-09 2.11E-09 1.98E-09 NW 3.06E-09 2.76E-09 2.58E-09 2.41 E-09 2.25E-09 2.1 OE-09 1.98E-09 NNW 3.64E-09 3.26E-09 3.04E-09 2.85E-09 2.62E-09 2.45E-09 2.29E-09 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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I MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: I APPENDIX A Revision 0 P~nn_ 71 nf 7Al

-1 I Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<_500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 2.9 3.0 3.1 3.2 3.3 3.4 3.5 N 2.23E-09 2.09E-09 1.96E-09 1.84E-09 1.74E-09 1.73E-09 1.63E-09 NNE 1.94E-09 1.82E-09 1.71 E-09 1.61 E-09 1.51 E-09 1.42E-09 1.35E-09 NE 1.42E-09 1.33E-09 1.25E-09 1.17E-09 1.1OE-09 1.03E-09 9.77E-10 ENE 1.28E-09 1.20E-09 1.11E-09 1.05E-09 9.92E-10 9.42E-10 8.97E-10 E 1.50E-09 1.43E-09 1.34E-09 1.26E-09 1.19E-09 1.11E-09 1.04E-10 ESE 2.60E-09 2.42E-09 2.29E-09 2.15E-09 2.OOE-09 1.90E-09 1.79E-09 SE 2.84E-09 2.67E-09 2.50E-09 2.32E-09 2.18E-09 2.05E-09 1.93E-09 SSE 2.86E-09 2.69E-09 2.53E-09 2.34E-09 2.23E-09 2.1 OE-09 1.98E-09 S 1.74E-09 1.63E-09 1.64E-09 1.54E-09 1.48E-09 1.36E-09 1.29E-09 SSW 1.53E-09 1.44E-09 1.36E-09 1.29E-09 1.22E-09 1.16E-09 1.10E-09 SW 1.73E-09 1.61 E-09 1.52E-09 1.43E-09 1.36E-09 1.27E-09 1.21 E-09 WSW 1.46E-09 1.37E-09 1.29E-09 1.22E-09 1.15E-09 1.10E-09 1.04E-09 W 1.48E-09 1.40E-09 1.32E-09 1.24E-09 1.18E-09 1.1OE-09 1.05E-09 WNW 1.84E-09 1.74E-09 1.61 E-09 1.52E-09 1.42E-09 1.52E-09 1.56E-09 NW 1.83E-09 1.72E-09 1.67E-09 1.59E-09 1.53E-09 1.42E-09 1.36E-09 NNW 2.13E-09 2.01 E-09 1.90E-09 1.79E-09 1.67E-09 1.57E-09 1.49E-09 Period of Record: 9-1-76 to 8-31-78 Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 72 of 74 Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 3.6 3.7 3.8 3.9 4.0 4.1 4.2 N 1.55E-09 1.47E-09 1.40E-09 1.34E-09 1.29E-09 1.24E-09 1.20E-09 NNE 1.27E-09 1.21E-09 1.16E-09 1.09E-09 1.04E-09 1.03E-09 9.85E-10 NE 9.27E-10 8.82E-10 8.44E-10 8.04E-10 7.68E-10 7.48E-10 7.05E-10 ENE 8.50E-10 8.08E-10 7.71E-10 7.38E-10 7.01E-10 6.78E-10 6.48E-10 E 9.92E-10 9.39E-10 8.94E-10 8.83E-10 8.48E-10 8.09E-10 7.71E-10 ESE 1.71 E-09 1.61 E-09 1.53E-09 1.48E-09 1.42E-09 1.35E-09 1.29E-09 SE 1.83E-09 1.73E-09 1.64E-09 1.57E-09 1.50E-09 1.46E-09 1.44E-09 SSE 1.86E-09 1.76E-09 1.69E-09 1.65E-09 1.56E-09 1.49E-09 1.42E-09 S 1.20E-09 1.16E-09 1.11E-09 1.07E-09 1.03E-09 9.96E-10 9.67E-10 SSW 1.04E-09 9.85E-10 9.51E-10 9.16E-10 8.78E-10 8.46E-10 8.15E-10 SW 1.14E-09 1.08E-09 1.02E-09 9.62E-10 1.01E-09 9.88E-10 9.93E-10 WSW 9.89E-10 9.58E-10 9.19E-10 8.74E-10 8.35E-10 8.03E-10 7.53E-10 W 1.01E-09 9.61E-10 9.21E-10 8.85E-10 8.52E-10 8.21E-10 7.93E-10 WNW 1.49E-09 1.42E-09 1.34E-09 1.29E-09 1.23E-09 1.1 8E-09 1.1 4E-09 NW 1.28E-09 1.23E-09 1.19E-09 1.14E-09 1.1OE-09 1.06E-09 1.03E-09 NNW 1.41E-09 1.34E-09 1.29E-09 1.22E-09 1.19E-09 1.14E-09 1.1OE-09 Period of Record: 9-1-76 to 8-31-78

Measured relevant to the Offgas Stack.

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MONTICELLO NUCLEAR GENERATING PLANT TITLE: APPENDIX A ODCM-APP-A -1 Revision 0 Page 73 of 74 I Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

I For Standard Distances (As Measured from the Offgas Stack) (D/q), m-2 Miles Sector* 4.3 4.4 4.5 4.6 4.7 4.8 4.9 N 1.13E-09 1.09E-09 1.05E-09 1.02E-09 9.85E-1 0 9.67E-1 0 9.40E-1 0 NNE 9.68E-10 9.29E-10 8.71E-10 8.40E-10 8.07E-10 7.79E-10 7.49E-10 NE 6.98E-10 6.63E-10 6.16E-10 6.06E-10 5.87E-10 5.62E-10 5.45E-10 ENE 6.19E-10 5.96E-10 5.55E-10 5.37E-10 5.17E-10 5.06E-10 4.86E-10 E 7.43E-10 7.1OE-10 6.81E-10 6.53E-10 6.25E-10 6.01E-10 5.72E-10 ESE 1.24E-09 1.18E-09 1.13E-09 1.08E-09 1.04E-09 9.99E-10 9.57E-10 SE 1.38E-09 1.31E-09 1.26E-09 1.21E-09 1.16E-09 1.12E-09 1.07E-09 SSE 1.36E-09 1.30E-09 1.25E-09 1.18E-09 1.14E-09 1.09E-09 1.05E-09 S 9.28E-10 8.94E-10 8.64E-10 8.38E-10 8.12E-10 7.83E-10 7.60E-10 SSW 7.88E-10 7.61E-10 7.38E-10 7.17E-10 6.89E-10 6.70E-10 6.49E-10 SW 1.09E-09 1.06E-09 1.11E-09 1.07E-09 1.02E-09 9.83E-10 9.46E-10 WSW 7.39E-10 7.09E-10 7.33E-10 7.08E-10 6.86E-10 6.70E-10 6.50E-10 W 7.67E-10 7.44E-10 7.22E-10 7.02E-10 6.79E-10 6.61E-10 6.36E-10 WNW 1.1OE-09 1.06E-09 1.02E-09 9.86E-10 9.55E-10 9.22E-10 8.94E-10 NW 9.96E-10 9.60E-10 9.27E-10 9.OOE-10 8.73E-10 8.48E-10 8.24E-10 NNW 1.07E-09 1.02E-09 1.01E-09 9.77E-10 9.43E-10 9.13E-10 8.84E-10 Period of Record: 9-1 -76 to 8-31-78

Measured relevant to the Offgas Stack.

I/pIr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-A TITLE: APPENDIX A Revision 0 Page 74 of 74 Table 14 Reactor Building Vent Dispersion Parameters for Short Term Elevated Releases

<500 Hrs/Yr or <150 Hrs/Qtr (cont'd)

(D/q), m-2 For Standard Distances (As Measured from the Offgas Stack)

Miles 5.0 Sector*

N 9.09E-10 NNE 7.21 E-10 NE 5.24E-10 ENE 4.68E-10 E 5.58E-10 ESE 9.19E-10 SE 1.04E-09 SSE 1.01 E-09 S 1.29E-09 SSW 6.32E-10 SW 9.1OE-10 WSW 6.32E-10 W 6.21 E-10 WNW 8.70E-10 NW 7.93E-10 NNW 8.42E-1 0 Period of Record: 9-1 -76 to 8-31 -78

Measured relevant to the Offgas Stack.

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Page 1 of 21 OFFSITE DOSE CALCULATION MANUAL - TABLE OF CONTENTS SECTION PAGE 1.0 RECORD OF REVISION ............................................... 4 Table 1 Monticello Nuclear Generating Plant Site Meteorology - Stability Class A, Elevation 10 Meters ................................................ 5 Table 2 Monticello Nuclear Generating Plant Site Meteorology - Stability Class B, Elevation 10 Meters ........................................ 6 Table 3 Monticello Nuclear Generating Plant Site Meteorology - Stability Class C, Elevation 10 Meters ................................................ 7 Table 4 Monticello Nuclear Generating Plant Site Meteorology - Stability Class D, Elevation 10 Meters ........................................ 8 Table 5 Monticello Nuclear Generating Plant Site Meteorology - Stability Class E, Elevation 10 Meters ........................................ 9 Table 6 Monticello Nuclear Generating Plant Site Meteorology - Stability Class F, Elevation 10 Meters ................................................ 10 Table 7 Monticello Nuclear Generating Plant Site Meteorology - Stability Class G, Elevation 10 Meters ................................................ 11 Table 8 Monticello Nuclear Generating Plant Site Meteorology -All Classes Combined Elevation 10 Meters ....................................... 12 Table 9 Monticello Nuclear Generating Plant Site Meteorology - Stability Class A, Elevation 100 Meters ............................................... 14 Table 10 Monticello Nuclear Generating Plant Site Meteorology - Stability Class B, Elevation 100 Meters ............................................... 15 Table 11 Monticello Nuclear Generating Plant Site Meteorology - Stability Class C, Elevation 100 Meters ............................................... 16 Table 12 Monticello Nuclear Generating Plant Site Meteorology - Stability Class D, Elevation 100 Meters ............................................... 17 3087 Supv:

lResp (DOCUMENT CHEM CHANGE, HOLD, AND COMMENT FORM) incorporated,

,Asce:CHEM-, 2!_R: N Freq:,.2 *rs

[ARMS: ODCM-APP-B Dcye: 7030 Admin Initials: -Date:

T:

I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 SECTION wmmwý Table 13 Monticello Nuclear Generating Plant Site Meteorology - Stability Class E, Elevation 100 Meters ..........................

I' Page 2 of 21 PAGE

-1

..... .. .... 18 Table 14 Monticello Nuclear Generating Plant Site Meteorology - Stability Class F, Elevation 100 Meters ............................................... 19 Table 15 Monticello Nuclear Generating Plant Site Meteorology - Stability Class G, Elevation 100 Meters ............................................... 20 Table 16 Monticello Nuclear Generating Plant Site Meteorology - All Classes Combined Elevation 100 Meters ..................................... 21 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Page 3 of 21 1.0 RECORD OF REVISION Revision No. Date Reason for Revision 0 October - 2000 Moved previous ODCM-07.01 and ODCM-08.01 tables of meterological data to this document.

1 November - 2001 Typo, replaced missing M in Monticello on Page 1 of Table of Content. I I/plr

I - -

I:

[TITLE:

AMONTICELLO NUCLEAR GENERATING APPENDIX PLANT B

ULUUM-AFF-b Revision 1 I Page 4 of 21 I Table 1 Monticello Nuclear Generating Plant Site Meteorology - Stability Class A, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total 63 30 7 0 122 N 4 18 20 30 14 2 0 68 NNE 2 1 13 21 26 2 2 65 NE 1 14 16 4 0 0 35 NNE 28 40 12 0 0 80 E 0 33 50 5 6 0 97 ESE 3 2 26 50 35 12 3 128 SE 46 96 122 11 0 283 SSE 8 36 68 117 42 3 275 S 9 63 94 58 20 4 244 SSW 5 4 35 64 32 5 3 143 SW 25 74 26 0 0 128 WSW 3 29 47 18 1 0 95 W 0 4 34 73 79 14 0 204 WNW 3 29 58 61 3 0 154 NW 6 29 109 67 13 0 224 NNW 0 0 0 0 0 0 0 VAR Total Hours This Class: 2350 Hours of Calm This Class: 5 Percent of All Data This Class: 14.27 I/plr

MONTICELLO NUCLEAR GENERATING PLANT 0DCM-APP-B TITLE: APPENDIX B Revision 1 Page 5 of 2 Table 2 Monticello Nuclear Generating Plant Site Meteorology - Stability Class B, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 2 14 19 4 0 1 40 NNE 4 10 8 5 0 0 27 NE 0 6 3 2 0 0 11 ENE 1 11 7 2 0 0 21 E 0 13 4 0 0 0 17 ESE 1 15 10 3 3 0 32 SE 0 9 9 9 0 0 27 SSE 2 12 9 9 0 0 32 S 2 13 21 7 1 0 44 SSW 1 22 19 4 0 0 46 SW 0 11 10 3 0 0 24 WSW 1 12 11 3 0 0 27 W 0 12 19 8 2 1 42 WNW 0 11 20 21 5 1 58 NW 1 8 22 13 3 1 0 47 NNW 8 40 26 4 1 0

80 VAR 0 0 0 0 0 0 Total Hours This Class: 575 Hours of Calm This Class: 0 Percent of All Data This Class: 3.49 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Table 3 Monticello Nuclear Generating Plant Site Meteorology - Stability Class C, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 0 12 16 8 0 0 36 NNE 3 13 13 4 1 0 34 NE 2 10 11 5 2 0 30 ENE 1 19 4 2 0 0 26 E 0 8 10 2 0 0 20 ESE 2 14 12 5 2 0 35 SE 0 12 16 9 0 0 37 SSE 0 10 21 8 0 0 39 S 6 12 28 18 3 0 67 SSW 3 16 12 3 2 1 37 SW 3 11 14 3 1 0 32 WSW 2 5 11 2 0 0 20 W 4 22 19 5 1 0 51 WNW 4 23 38 19 3 0 87 NW 3 17 18 30 4 0 72 NNW 2 22 40 27 5 1 97 VAR 0 0 0 0 0 0 0 Total Hours This Class: 720 Hours of Calm This Class: 0 Percent of All Data This Class: 4.37 I/plr

ITITLE:

MONTICELLO NUCLEAR GENERATING PLANT APPENDIX B 0DCM-APP-B Revision 1 Page 7 of 21 Table 4 Monticello Nuclear Generating Plant Site Meteorology - Stability Class D, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 9 107 135 39 0 1 291 NNE 32 132 87 18 0 270 1

NE 37 129 116 50 3 0 335 ENE 43 153 66 30 1 0 293 E 29 125 64 27 0 0 245 ESE 28 107 148 60 4 0 347 SE 16 103 153 36 2 0 310 SSE 13 97 103 35 2 0 250 S 19 84 96 33 1 0 233 SSW 16 73 70 19 6 1 185 SW 19 58 52 10 4 0 143 WSW 14 69 63 14 2 1 163 W 16 79 98 33 3 5 234 WNW 13 112 262 159 25 2 573 NW 17 82 255 232 61 3 650 NNW 19 104 247 246 49 1 666 VAR 0 0 0 0 0 0 0 Total Hours This Class: 5198 Hours of Calm This Class: 10 Percent of All Data This Class: 31.56 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Page 8 of 21 Table 5 Monticello Nuclear Generating Plant Site Meteorology - Stability Class E, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total 6 0 0 181 N 20 98 57 81 35 2 0 0 161 NNE 43 94 41 6 2 0 178 NE 35 122 29 10 0 0 211 ENE 50 109 40 2 0 0 187 E 36 117 46 6 0 0 195 ESE 26 111 136 18 2 0 286 SE 19 116 33 1 0 265 SSE 20 95 144 43 1 0 294 S 22 84 72 99 25 9 0 227 SSW 22 84 57 10 2 0 176 SW 23 86 44 4 0 0 171 WSW 37 156 123 12 4 0 325 W 30 195 233 41 2 0 495 WNW 24 133 247 84 0 0 484 NW 20 145 217 38 1 0 426 NNW 25 0 0 0 0 0 0 0 VAR Total Hours This Class: 4269 Hours of Calm This Class: 7 Percent of All Data This Class: 25.92 I/plr

ITITLE:J MONTICELLO NUCLEAR GENERATING PLANT APPENDIX B JRevision ODCM-APP-B 1

Page 9 of 21 Table 6 Monticello Nuclear Generating Plant Site Meteorology - Stability Class F, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 30 62 3 0 0 0 95 NNE 37 54 0 0 0 0 91 NE 29 29 0 0 0 0 58 ENE 32 28 0 0 0 0 60 E 32 59 5 0 0 0 96 ESE 25 97 11 0 0 0 133 SE 22 83 19 0 0 0 124 SSE 16 122 12 0 0 0 150 S 24 93 31 3 0 0 151 SSW 27 67 14 0 0 0 108 SW 27 52 7 0 0 0 86 WSW 52 68 8 0 0 0 128 W 51 91 14 0 0 0 156 WNW 28 68 9 0 0 0 105 NW 36 67 12 0 0 0 115 NNW 30 119 29 0 0 0 178 VAR 0 0 0 0 0 0 0 Total Hours This Class: 1847 Hours of Calm This Class: 13 Percent of All Data This Class: 11.21 I/plr

ITITLE:

MONTICELLO NUCLEAR GENERATING PLANT APPENDIX B ODCM-APP-B Revision 1I Page 10 of 21 Table 7 Monticello Nuclear Generating Plant Site Meteorology - Stability Class G, Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 45 31 0 0 0 0 76 NNE 40 16 0 0 0 0 56 NE 33 12 0 0 0 0 45 ENE 31 5 0 0 0 0 36 E 46 18 0 0 0 0 64 ESE 47 54 2 0 0 0 103 SE 52 34 1 1 0 0 88 SSE 67 111 3 6 0 0 187 S 64 109 23 2 0 0 198 SSW 61 65 10 2 0 0 138 SW 43 32 1 0 0 0 76 WSW 77 37 0 0 0 0 114 W 53 31 0 0 0 0 84 WNW 37 13 2 0 0 0 52 NW 49 15 3 4 0 0 71 NNW 47 48 2 0 0 0 97 VAR 0 0 0 0 0 0 0 Total Hours This Class: 1512 Hours of Calm This Class: 27 Percent of All Data This Class: 9.18 I/plr

MONTICELLO NUCLEAR GENERATING PLANT 0DCM-APP-B TITLE: APPENDIX B Revision 1 P~nn 11 nf 91 Table 8 Monticello Nuclear Generating Plant Site Meteorology - All Classes Combined Elevation 10 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 10 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 110 342 293 87 8 1 841 NNE 161 326 173 43 4 0 707 NE 137 293 192 89 9 2 722 ENE 159 352 122 48 1 0 682 E 143 360 163 43 0 0 709 ESE 132 437 279 79 15 0 942 SE 111 378 384 108 16 3 1000 SSE 126 493 360 213 14 0 1206 S 146 431 411 223 48 3 1262 SSW 135 378 318 111 37 6 985 SW 119 283 205 58 12 3 680 WSW 186 302 211 49 2 1 751 W 154 420 320 76 11 6 987 WNW 110 456 637 319 49 3 1574 NW 129 351 615 424 71 3 1593 NNW 130 475 684 404 72 3 1768 VAR 0 0 0 0 0 0 0 I/plr

I MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Page 12 of 21 Table 8 Monticello Nuclear Generating Plant Site Meteorology - All Classes Combined Elevation 10 Meters (cont'd)

Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Data Recovery for the Period Total Hours: 17520 Hours of Calm: 62 Hours of Bad Data: 1049 Percent Data Recovery: 94.01 Percent Acceptable Observations in each Stability Class Class A 14.27 Class B 3.49 Class C 4.37 Class D 31.56 Class E 25.92 Class F 11.21 Class G 9.18 Average Wind Speed for each Wind Category 1 to 3 MPH 2.5 4 to 7 MPH 5.5 8 to 12 MPH 9.7 13 to 18 MPH 14.7 19 to 24 MPH 20.6 Above 24 MPH 27.2 I/plr

IMONTICELLO TITLE:

NUCLEAR GENERATING PLANT APPENDIX B ODCM-APP-B Revision 1 I

Page 13 of 21 Table 9 Monticello Nuclear Generating Plant Site Meteorology - Stability Class A, I I

Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 0 1 2 10 1 0 14 NNE 0 1 1 1 0 0 3 NE 0 0 1 0 0 0 1 ENE 0 0 0 0 1 0 1 E 0 1 4 0 0 0 5 ESE 0 0 4 0 0 0 4 SE 0 0 4 8 0 6 18 SSE 0 1 5 42 36 15 99 S 0 1 3 28 35 12 79 SSW 0 1 10 37 53 39 140 SW 0 0 4 19 6 5 36 WSW 0 0 3 16 10 1 30 W 0 0 0 7 2 0 9 WNW 0 0 2 4 1 2 9 NW 0 0 3 6 6 3 18 NNW 0 0 1 14 4 0 19 VAR 0 0 0 0 0 0 0 Total Hours This Class: 489 Hours of Calm This Class: 4 Percent of All Data This Class: 2.95 I/plr

MONTICELLO NUCLEAR GENERATING PLANT 0DCM-APP-B TITLE: APPENDIX B Revision 1 Page 14 of 21 Table 10 Monticello Nuclear Generating Plant Site Meteorology - Stability Class B, Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 0 3 13 18 3 0 37 NNE 0 6 3 9 2 2 22 NE 0 1 7 6 0 0 14 ENE 0 2 3 7 2 0 14 E 0 2 15 1 0 0 18 ESE 0 5 17 3 0 2 27 SE 1 7 15 9 2 2 36 SSE 1 9 28 12 8 2 60 S 0 5 23 18 3 0 49 SSW 0 8 23 17 5 2 60 SW 0 7 18 8 5 1 39 WSW 0 7 8 14 2 1 32 W 0 4 8 18 5 0 35 WNW 0 4 12 17 7 6 46 NW 1 5 14 23 12 5 60 NNW 0 1 8 25 11 2 47 VAR 0 0 0 0 0 0 0 Total Hours This Class: 602 Hours of Calm This Class: 6 Percent of All Data This Class: 3.64 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 I

Table 11 Monticello Nuclear Generating Plant Site Meteorology - Stability Class C, Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1-76 through 8-31-78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 3 9 26 25 13 2 78 NNE 2 12 14 14 8 2 52 NE 1 7 9 8 2 0 27 ENE 0 5 12 6 1 0 24 E 0 13 19 1 2 0 35 ESE 0 13 25 11 1 1 51 SE 2 17 12 8 4 0 43 SSE 0 26 38 19 10 2 95 S 0 15 23 13 7 4 62 SSW 0 28 33 23 11 2 97 SW 0 20 24 17 4 0 65 WSW 3 17 27 14 3 1 65 W 3 10 20 14 8 3 58 WNW 3 10 16 27 18 9 83 NW 2 8 22 38 26 10 106 NNW 2 3 16 42 19 8 90 VAR 0 0 0 0 0 0 0 Total Hours This Class: 1041 Hours of Calm This Class: 10 Percent of All Data This Class: 4.29 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Page 16 of 21 Table 12 Monticello Nuclear Generating Plant Site Meteorology - Stability Class D, Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 11 51 95 181 130 82 NNE 11 41 106 120 50 12 340 NE 15 53 105 93 25 8 299 ENE 14 41 131 83 59 12 340 E 18 61 103 62 38 6 288 ESE 17 55 101 85 47 31 336 SE 13 57 108 152 68 23 421 SSE 9 63 119 148 71 17 427 S 16 61 95 122 61 8 363 SSW 14 61 85 120 46 34 360 SW 14 54 80 74 32 11 265 WSW 13 52 69 44 21 11 210 W 8 45 89 59 29 17 247 WNW 14 51 141 165 77 62 510 NW 7 50 170 366 312 143 1048 NNW 12 52 176 312 350 229 1131 VAR 0 0 0 0 0 0 0 Total Hours This Class: 7264 Hours of Calm This Class: 129 Percent of All Data This Class: 43.87 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 1 Page 17 of 21 Table 13 Monticello Nuclear Generating Plant Site Meteorology - Stability Class E, Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 4 17 59 99 82 11 272 NNE 7 18 37 68 32 3 165 NE 4 16 47 58 20 2 147 ENE 4 33 68 93 27 9 234 E 4 27 64 75 15 2 187 ESE 5 20 46 74 37 11 193 SE 10 23 63 97 58 3 254 SSE 5 22 58 94 105 16 300 S 5 13 57 140 97 20 332 SSW 2 25 49 115 125 22 338 SW 7 24 67 102 84 18 302 WSW 3 19 42 73 37 8 182 W 5 20 47 55 35 2 164 WNW 4 18 63 136 93 13 327 NW 6 15 71 172 141 12 417 NNW 3 27 86 244 198 17 575 VAR 0 0 0 0 0 0 0 Total Hours This Class: 4433 Hours of Calm This Class: 44 Percent of All Data This Class: 26.77 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE:' APPENDIX B Revision 1 Page 18 of 21 Table 14 Monticello Nuclear Generating Plant Site Meteorology - Stability Class F, Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 3 12 28 45 28 0 116 NNE 2 4 15 39 16 1 77 NE 4 7 23 49 17 1 101 ENE 1 7 19 40 6 3 76 E 4 10 26 15 3 0 58 ESE 8 16 28 31 14 2 99 SE 2 7 28 46 19 5 107 SSE 2 8 25 62 40 1 1 138 S 12 30 60 36 1 1 140 SSW 11 28 58 57 4 159 SW 3 14 19 75 33 2 146 WSW 5 6 22 28 29 0 90 W 1 14 22 27 16 0 80 WNW 4 10 44 49 27 1 135 NW 4 12 37 87 29 0 169 NNW 4 14 38 51 21 1 129 VAR 0 0 0 0 0 0 0 Total Hours This Class: 1826 Hours of Calm This Class: 6 Percent of All Data This Class: 11.03 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 Page 19 of 21 Table 15 Monticello Nuclear Generating Plant Site Meteorology - Stability Class G, Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 6 8 16 9 0 0 39 NNE 3 12 15 8 1 0 39 NE 4 6 11 16 4 0 41 ENE 6 11 15 11 3 1 47 E 8 7 11 11 1 0 38 ESE 1 12 9 16 2 0 40 SE 5 9 10 5 9 1 39 SSE 6 6 12 8 11 1 44 S 2 6 13 30 12 1 64 SSW 1 14 26 55 21 0 117 SW 1 9 21 26 25 3 85 WSW 5 16 29 16 14 0 80 W 3 14 8 16 18 2 61 WNW 5 15 23 21 9 0 73 NW 2 7 14 17 1 0 41 NNW 8 13 21 7 5 0 54 VAR 0 0 0 0 0 0 0 Total Hours This Class: 904 Hours of Calm This Class: 2 Percent of All Data This Class: 5.46 I/plr

ITITLE:

MONTICELLO NUCLEAR GENERATING PLANT APPENDIX B ODCM-APP-B Revision 1 Page 20 of 21 Table 16 Monticello Nuclear Generating Plant Site Meteorology - All Classes Combined Elevation 100 Meters Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Wind Speed (mph) at 100 Meter Level Direction 1 to 3 4 to 7 8 to 12 13 to 18 19 to 24 Above 24 Total N 27 101 239 387 257 95 1106 NNE 25 94 191 259 109 20 698 NE 28 90 203 230 68 11 630 ENE 25 99 248 240 99 25 736 E 34 121 242 165 59 8 629 ESE 31 121 230 220 101 47 750 SE 33 120 240 325 160 40 918 SSE 23 135 285 385 281 54 1163 S 24 113 244 411 251 46 1089 SSW 18 148 259 425 318 103 1271 SW 25 128 233 321 191 40 938 WSW 29 117 200 205 116 22 689 W 20 107 194 196 113 24 654 WNW 30 108 301 419 232 93 1183 NW 22 97 331 709 527 173 1859 NNW 29 110 346 695 608 257 2045 VAR 0 0 0 0 0 0 0 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-B TITLE: APPENDIX B Revision 1 I IPage 21 of 21 Table 16 Monticello Nuclear Generating Plant Site Meteorology - All Classes Combined Elevation 100 Meters (cont'd)

Frequency Distribution Tables, Hours at each Wind Speed and Direction Period of record: 9-1 -76 through 8-31 -78 Data Recovery for the Period Total Hours: 17520 Hours of Calm: 201 Hours of Bad Data: 961 Percent Data Recovery: 94.51 Percent Acceptable Observations in each Stability Class Class A 2.95 Class B 3.64 Class C 6.29 Class D 43.87 Class E 26.77 Class F 11.03 Class G 5.46 Average Wind Speed for each Wind Category 1 to 3 MPH 2.5 4 to 7 MPH 5.8 8 to 12 MPH 10.1 13 to 18 MPH 15.4 19 to 24 MPH 20.9 Above 24 MPH 28.1 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-C TITLE: APPENDIX C Revision 0 Page 1 of 5 OFFSITE DOSE CALCULATION MANUAL - TABLE OF CONTENTS SECTION PAGE 1.0 RECORD OF REVISION ............................................... 2 Table 1 Parameters for Cow and Goat Milk Pathways .......................... 3 Table 2 Parameters for the Cow Meat Pathway ............................... 4 Table 3 Parameters for the Vegetable Pathway ................................ 5 Prepared By Reviewed By:

0O Final Review Meetin: Date Approved By Plant Manager: /-* Date: ,,..:

3087 (DOCUMENT CHANGE, HC _D, AND CMETFORM) incorporated: 4 Res Supv CHEM TAssoc Ref: CHEM-I N Freq: Mrs ARMS: ODCM-APP-C jDocType: 7030 IAdmin Initials: Date I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-C TITLE: APPENDIX C Revision 0 Page 2 of 5I 1.0 RECORD OF REVISION Revision No. Date Reason for Revision 0 October - 2000 Moved previous ODCM-1 0.01 tables of parameters to this document.

I/pir

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-C IU TITLE: APPENDIX C Revision 0 Page 3 of 5 -HI Table 1 Parameters for Cow and Goat Milk Pathways Reference in Parameter Value Reg. Guide 1.109 Rev. 1 50 (cow)

QF (kg/day) 50 (cow) Table E-3 6 (goat) Table E-3 tf (seconds) 1.73 X 105 (2 days) Table E-15 r 1.0 (radioiodines) Table E-1 5 0.2 (particulates) Table E-1 5 (DFLi)a (mrem/pCi) Each radionuclide Table E-11 to E-14 Fm (pCi/day per pCi/liter) Each stable element Table E-1 (cow)

Table E-2 (goat) tb (seconds) 4.73 X 108 (15 yr) Table E-15 Ys(kg/m 2 ) 2.0 Table E-15 Yp (kg/m 2 ) .75 Table E-15 th (seconds) 7.78 X 106 (90 days) Table E-1 5 Uap (liters/yr) 330 infant Table E-5 330 child Table E-5 400 teen Table E-5 310 adult Table E-5 tep (seconds) 2.59 X 106 (pasture) Table E-15 tes (seconds) 5.18 X 106 (stored feed) Table E-15 Biv (pCi/kg (wet weight) Each stable element Table E-1 per pCi/kg (dry soil))

P (kg dry soil/m 2 ) 240 Table E-15 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-C TITLE: APPENDIX C Revision 0 Page 4 of 5 Table 2 Parameters for the Cow Meat Pathway Parameter Reference in Value Reg. Guide 1.109 Rev. 1 r 1.0 (radioiodines) Table E-1 5 0.2 (particulates) Table E-15 Ff (pCi/kg per pCi/day) Each stable element Table E-1 Uap (kg/yr) 0 infant Table E-5 41 child Table E-5 65 teen Table E-5 110 adult Table E-5 (DFLi)a (mrem/pCi) Each radionuclide Table E-11 to E-14 Yp (kg/m 2 ) 0.7 Table E-15 Ys(kg/m 2 ) 2.0 Table E-15 tb (seconds) 4.73 X 108 (15 yr) Table E-1 5 ts (seconds) 1.73 X 106 (20 days) Table E-1 5 th (seconds) 7.78 X 106 (90 days) Table E-1 5 tep (seconds) 2.59 X 106 (pasture) Table E-15 tes (seconds) 5.18 X 106 (stored feed) Table E-15 QF (kg/day) 50 Table E-3 Biv (pCi/kg (wet weight) Each stable element Table E-1 per pCi/kg (dry soil))

P (kg dry soil/m 2 ) 240 Table E-1 5 I/plr

MONTICELLO NUCLEAR GENERATING PLANT ODCM-APP-C TITLE: APPENDIX C Revision 0 I IPages5 of 5 Table 3 Parameters for the Vegetable Pathway Reference in Parameter Value Reg. Guide 1.109 Rev. 1 1.0 (radioiodines) r (dimensionless) 1 .0 (radioiodines) Table E-1 0.2 (particulates) Table E-1 (DFLi)a (mrem/Ci) Each radionuclide Tables E-11 to E-14 ULa (kg/yr) 0 Infant Table E-5 26 Child Table E-5 42 Teen Table E-5 64 Adult Table E-5 USa (kg/yr) 0 Infant Table E-5 520 Child Table E-5 630 Teen Table E-5 520 Adult Table E-5 tL (seconds) 8.6 X 104 (1 day) Table E-15 th (seconds) 5.18 X 106 (60 days) Table E-1 5 Yv (kg/m2) 2.0 Table E-15 te (seconds) 5.18 X 106 (60 days) Table E-1 5 tb (seconds) 4.73 X 108 (15 yr) Table E-1 5 P (kg/(dry soil)/m2) 240 Table E-15 Biv (pCi/kg (wet weight) Each stable element Table E-1 per pCi/kg (dry soil))

I/plr

ML021430031

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