ML20092J939

Applicant Exhibit A-39,consisting of Listed Sections of Environ Rept - OL Stage

ML20092J939
Person / Time
Site:	Limerick
Issue date:	04/23/1984
From:	PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
References
OL-A-039, OL-A-39, NUDOCS 8406270321
Download: ML20092J939 (6)

Text

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i' 6.1.5 RADIOLOGICAL ENVIRONMENTAL MONITORING l Radiological environmental monitoring in the vicinity of the  !

' Limerick Generating Station has been in effect since 1971.  ;

-Extensive data have been collected on a wide variety of l environmental media providing a comprehensive data base for i assessing plant effects. The primary objectives c'f the  !

Radiological Environmental Monitoring Program as outlined in the Branch Technical Position, Revision 1, (1979) on Regulatory Guide 4.8 are as follows:

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a. To provide data on measurable levels of radiation and radioactive materials in the site environs;

b. To evaluate the relationship between quantities of  !

radioactive material released from the plant and  ;

resultant radiation doses to individual from principal  ;

pathways of exposure. l Implementation of these objectives is accomplished by identifying significant exposure pathways, establishing baseline radiological l data of media within those pathways, and continuously monitoring- i those media before and during plant operation.to detemrine plant i effects on man and the environment. The Limerick Radiological Environmental Monitoring Program (REMP) consists of three  !

distinct phases: preliminary survey study, preoperational ,

program, and operational program. The preliminary survey study was conducted from 1971 to 1977 and was originally described as i the preoperational program in the Environmental Report - ,

Construction Permit Stage (Revised). Lengthy delays in the 6 Limerick Generating Station startup dates have resulted in the formatting of a new preoperational program. However, an-extensive background radiation data base has been compiled and t i will provide valuable information on the natural radiological  !

l characteristics of the Limerick Generating Station environs.

L The period from 1977 through 1982 has consisted of site selection and the gradual implementation of the preoperational program. r l

Monitoring equipment has been upgraded, sampling protocols.have' '

l been developed, and additional sites have been selected to ,  ;

conform with changing regulatory requiremencs. To maintain , i

! continuity, sampling has continued in a variety of media:  !

surface water, drinking water, well water, fish and sediment. . l The thermoluminescent dosimeter (TLD) monitoring program has-:een  ;

i initiated during this period and will be fully implemented during j 1982.

Initiation of preoperational monitoring activities will' cenferm to the guideltnes of the Branch Technical Position,:  ;

l Revision 1, (1979) sn Regulatory Guide 4.8 will cc=mence during i

( the fall of 1982 and continue to fuel lead. At that time the i j cperational program that couples directly with the preoperaticnal  ;

pecqram will be activated. 6270321 840423

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LGS EROL Details of the preliminary survey study, preoperational program, and operational program are presented in Sections 6.1.5.1, 6.1.5.2, and 6.2.2, respectively.

6.1.5.1 Preliminary Survey Study A preliminary survey investigational study of the radiological environment surrounding Limerick Generating Station was conducted from 1971 to 1977. Table 6.1-34 lists the media sampled and the approximately 20,000 analyses performed on the various media during this initial seven year survey period. This survey study was used in order to prepare for a final formulated preoprational peogram (described in Section 6.1.5.2), which will couple directly with the operational program at the time the plant goes operational.

Data from this initial survey period will help to establish radiological baseline data for the site. The data presented in this section were obtained from the preliminary survey study period. Figures 6.1-23 through 6.1-27 present the locations of stations sampled during the preliminary study period.

Table 6.1-35 keys to Figures 6.1-23 through 6.1-27, and lists the distance, direction and time period of station activities.

Tables 6.1-36 through 6.1-44 present the average yearly values plus or minus two standard deviations for all analyses performed

.on all media sampled, along with the minimum and maximum valaes.

In the above tables, background radiation levels in air, precipitation, surface water, well water, milk, soil, vegetation, silt, aquatic plants, fruits, game, fish, and meat are presented.

A wide range of radionuclides, both naturally occJering and manmade, were found in the LGS environs. Naturally occurring radionuclides were found at levels expected for a riverine environment. The manmade radionuclides found, primarily in the air particulates, precipitation, benthos and soil, were the fission products typically found in nuclear weapons test fallout.

Ambient radiation levels were relatively low and approximately the same for all stations. It is concluded that ene environment surrounding LGS has no unusual radiological characteristics.

The data from this preliminary survey study provides a fairly

' comprehensive set of background radiological information. These data will be generally applicable, but not to the detail desired for specific comprehensive baseline which will be compared t:

operational data. Therefore, the preoperational radiological monttoring program that parallels more closely the operational pro Data cocained wilyram was implemented

. be placed duringtothe in a data base mesummer of future used for 1982. assessment cf radiological cont:ibutions from plant operations and for any b' 6.1-57 Rev. 7, 10/82 u:

LGS ERCL possible modifications of the operational monitoring program, when such data.so indicate.

L 4.1.5.2 Preemerational Radiolooical Monitorino The preoperational radiological monitoring program has been '

+ , designed using the esperience gained in the preliminary survey Jotudy, Section 4.1.5.1, and in consideration of the Branch Technical position on Regclatory Guide 4.8 (November 1979). The N program scope in general arceeds the recommendations of the

. Branch Technical Position on Regulatory Guide 4.8 (November J1979).

/SSamplin locations for the proeperational and operational

% radiolo ical monitoring' program have been chosen based on site

- ,,meteoro ogical data as well as on the probable influence of plant

-airborne and liquid effluents on the surrounding environment.

Consideestion has been given to neighboring population centers,

, drinking water consumption, surface water usage, fishing and

, hunting activities l^1ocal dairy farming, and agricultural activi' ties.* For+ comparative purposes, control locations have coon established at distances beyond the expected influence of

.. . potential plant releasesy ,

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gg A summer'y of the,preo erational and operational radiological

,- ' monitoring program is presented in Tasle 4.1-45. Sampling

,, f' . Locations are summarised in Table 4.1-44 and presented as a

'^ . innettonal of distance.and sector from the plant in Figures 6;te18 to 4.1-30. Sampling station codes are keyed to station sP. d6adristions in Sections 4.1.5.2.1 to 4.1.5.2.9. Detection

-capabilities for environmental sample analysis will be as shown itn. Table 6.1-47.- Environmental sampling will be conducted using

'f ) Athe type of equipment described in Table 4.1-48.

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'd.1.5.2.1 Radicio2tiv and Particula:es 4

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Cne air particulate sampler will be located in the east, east-and southeast sectors (1081, 1181, and 1481,

• southeast,ly) respective as near as practicable.to locations that correspend to the highestscalculated offsite annual ground level D/C. Cne

/ ssample will be taken from Pottstown 131D1) and one from i Royersford (13C1), the twa communities having the hignest

+ caleviated annual. average ground level C/Q. Cne control sample from 4' station netween 10 and>10 miles in ene of the least prevalent wind directions (rn) (22G11 and one control sam le fr:m

1. Jh!1sev1phia es11ee.H. (1354), < Particulate the largestand cit radicioc'y witntn 50 miles, wi

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ine samples fr:m these seven s:4tions ud.11 he collected and analyzed wegx1y. Ten addittenal

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sampling locations will be.used to increase the program coverage [

.. (total of 17 stations). Particulate samples from these stations  !

will be cellected and analyzed weekly. Radiciodine samples will i be collected weekly but analyzed only if necessary. l I

4.1.5.2.2 Direct Radiation l [

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A set of dosimeters yielding four readings will be placed at all i air sampling locations described for radiciodine and particulates. In addition, dosimeters will be placed as near as p sible to each of three (different sector) offsite locations of highest calculated annual average ground level X/Q, NNE, N, ENE ,

(381, 3481, and 781, respectively). Station location  !

arrangements conform to the Branch Technical Position on i Regulatory Guide 4.8 by adhering to the 'two ring philosophy" of l station placement whereby a station is located in each sector  !

near the site boundary, and in each sector 4 to 5 miles from the  ;

plant. Schools, residences, and nearby population centers are i

- aise considered in the direct radiation monitoring scheme. Two ,

centrol stations located in the least prevalent wind direction (SW and NE) (22G1 and SM1, respectively) and one station located j in Philadelphia (13N3), the largest population center within 50  !

miles, bring the total number of direct radiation station f locations to 48. All direct radiatico stations will be collected  !

and analysed,on a monthly basis. j 4.1.5.2.3 Surface and Drinking Water l Surface water samples will be collected by automatic samplers at five locations. One sample will be taken at the Schuylkill River  !

intake (2481) and serve as the upstream control. One sample will  :

he taken downstream of the discharge in an area beyond but near i the sising sone (1452) to measure plant effects. One sample will i be collected across from the plant in an area of the etver net i influenced by plant discharge (2452) to augment the upstream  !

control. One sample will be taken from the east branch of the  !

Perkiomen River at the pumping station, which will supply makeup j water during periods of low flow in the Schuylkill (10F2). A i sample of untreated surface water will also be taken at a water  :

company downstream of the plant (15F5) and serve as a control to l a treated sample, j Drinking water samples will be co115cted at five locations, fcur 1 i

by autematic samplers, one by compostted grab sampin g13H2). One i control sample will be ec11ected at an upstream wat.or company I i (14F3). One sample will be collected at the nearest downstream j i user of Schuylkill River water fer drinking purposes (16C21. One i 4.1-58a Rev. 7, 10/92  !

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LG5 EROL sample each will be collected at the two other nearest major water suppliers affected by liquid plant discharges (1574 and 15F7). One sample will also be collected at a Philadelphia water utility.(13H2) that also draws Schuylkill River water for

. drinking. Surface water and drinking water samples will be

' collected and analyzed on a monthly basis.

6.1.6.2.4 Groundwater There are no well water users that are potentially affected by

. groundwater from the Limerick site because the direction of flow on site is toward the adjacent Schuylkill River. However,

. samples of well water from two nearby users (1151, 18A1) will be obtained semi-annually to ensure that no effects have occurred.

6.1.5.2.5 ' Sediments from Shoreline Three' locations will be~ sampled: an upstream control (33A2), the Limerick discharge area (1632), and a downstream potential recreational area (16C4). Samples will be collected and analyzed on a semi-annual basis.

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LGS EROL 6.1.5.2.6 Milk {

Milk samples will be collected and analyzed from three available locations within 5 km (three miles) having the highest dose potential (10B1, SC1, 10C1) and at a control location (22F1) l approximately 15 km from the plant in the least prevalent wind direction. Samples will be collected bi-weekly during the grazing season and monthly at other times. To increase program coverage, an additional nine stations have been added to the milk sampling program and will be collected monthly.

6.1.5.2.7 Vegetation Broad leaf vegetation will be sampled and analyzed monthly during the growing season at a location near the site boundary in the sector with the highest annual average D/O (11S1).

6.1.5.2.8 Fish

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Although there:are presently no commercially important species in the vicinity of the discharge, two species of recreationally_ i

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important fish, sunfish and brown bullhead, will be sampled if available. Fish will be sampled semi-annually at three locations: an upstream control in an area not influenced by plant discharge (33A2), a location in the vicinity of the discharge point (16B2), and a downstream area (16C4).

6.1.5.2.9 Game A sample of small' game animals will be obtained and analyzed annually from-the vicinity of Limerick.

6.1-59 Rev. 17, 02/84

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EVENT CENERAL-CLASS- SYRPTOMS OR EAL'S SHIFT RESPON DESCRIPTICN(1)'(3)

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- l .- UNPLANNED REACTCR SHUID0hN UNUSUAL PLANT CONDITIONS DO SHUT DOWN T@

A. 003 TROLLED SHUTDOWN REQUIRED BY TECH EVENT NOT COEPLY WITH SPEC /tCO. TECH SPEC /LCO.

B. 'SHUTD0nN 0THER UNUSUAL VARIOUS INDICATIONS VERIFYSTAT(

THAN NORMAL CON, EVENT OF REACTOR SCRAW OR PLANTSAFr.Tf TROLLED SHUTDOWN ABNORMAL C00LDOWN SYSTENS.

FOR THE PURPOSE OF RATE. SHIFTTECHN(

PLACING THE PLANT ADVISOR ASSf IN A SAFER CON-J DITION OR COOL-

___} . DOWN RATE EXCEEDS TECH SPEC LIMITS.

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