ML19350C755

Testimony in Response to ASLB Question 9,groundwater Monitoring at Tmi.Describes Measures to Monitor Groundwater Quality at Site.Prof Qualifications & Certificate of Svc Encl.Related Correspondence

ML19350C755
Person / Time
Site:	Three Mile Island
Issue date:	03/23/1981
From:	Fuhrer E, Riethle W GENERAL PUBLIC UTILITIES CORP., METROPOLITAN EDISON CO.
To:
References
NUDOCS 8104060664
Download: ML19350C755 (37)

Text

.. .

g.

LIC 3/23/81

<-\\'*1 ,_

,;tgco cot'"MPD.'DE'

'g ')(\ .q UNITED STATES OF AMERICA b 'IEE 0,3 ggI A 'qg NUCLEAR REGULATORY COMMISSION M u.s, % ,-

BEFORE THE ATOMIC SAFETY AND LICENSING BOARD 773Y In the Matter of )

)

METROPOLITAN EDISON COMPANY ) Docket No. 50-289

) (Restart)

(Three Mile Island Nuclear )

Station, Unit No.1) )

- ,wh '

,A

,/ q/ . y -? y. .i, M ~

.Q  ;; ' ' 2 61981 > C~I ,

3

L ,-rnj .k

?'

m .c, -

['

LICENSEE'S TESTIMONY OF l

l WILLIAM E. RIETHLE AND EDWIN C. FUHRER l

! IN RESPONSE TO BOARD QUESTION NO. 9 (GROUNDWATER MONITORING AT TMI) i t

9'l l 810,40 606(a6 T

4 OUTLINE The purposes and objectives of this testimony are to respond to Board Questions 9(a) through 9(e), on Groundwater Monitoring at TMI. The testimony describes measures taken to monitor groundwater quality at the site, and measures taken to ensure against contamination of the groundwater under routine operations, accident conditions, and clean-up operations. -The testimony presents the evidence of changes in groundwater quality, and discusses the possible sources of contamination. Finally, various measure available to

-mitigate such contamination are described.

e

INTRODUCTION This testimony, by Mr. William E. Riethle, III, GPU, Manager-Environmental Controls, TMI, and Mr. Edwin C. Fuhrer, Supervisor-Radwaste Operations, Metropolitan Edison Company, is addressed to Board Question No. 9 (Tr. 2397-98):

(a) What measures are taken to monitor groundwater quality at the site?

(b) .W hat measures are taken to ensure against con-tamination of the groundwater under routine operations, accident conditions, and clean-up operations?

(c) Is there any evidence at the present time of changes in groundwater quality, including but not limited to radioactivity and boron, attribu-table to operations at TMI-l and/or 2?

(d) If changes.in groundwater quality have occurred, distinguish, if possible, the scurces of any con-tamination, i.e., rountine operations at Unit 1, routine operations at Unit 2, unplanned or acci-dent conditions at Unit 1, unplanned or accident conditions at Unit 2, or clean-up operations.

(e) What mitigative measures are available, should groundwater contamination occur?

RESPONSE TO BOARD QUESTION NO. 9(a)

BY WITNESS RIETHLE:

In March and April of 1980, eight groundwater monitoring wells ("MW") were installed at TMI to provide an early warning system in the event of a leak from the Unit 2 reactor building.

Five of the monitoring wells were located around the Unit 2 reactor building, two additional wells were placed outside the Unit 2 secured area fence, and the eighth well was located at the north end of the Island. After tritium was found in MW-2, seven additional wells, denominated observation wells ("OW"),

were installed in May 1980, to help assess the tritium condition.

Six of the observation wells are located inside the Unit 2 secured area, and the seventh well is positioned at the south end of the. Island. Water from all MW's and OK's have been sampled either weekly or biweekly, providing a large data base.1/ In early September 1980, pump tests on MW-2 drew approximately 55,000 gallons of groundwater. This extended pump test on MW-2 is believed to have increased the groundwater flow to the wells in the area. The location of the 15 monitoring wells is shewn in Figure 1.

-1/

Data.from MW-1 and OW-15 are taken as background because they are far from the power block. MW-1 is north of Unit 1 and OW-15 is at the south end~of TMI.

RESPO!!SE TO BOARD QUESTION NO. 9(b)

BY WITNESS FUHRER:

Under either aormal or accident conditions, groundwater contamination through liquid pathways can potentially occur in TMI-1 from four sources -- permanent structure leakage, tankage leakage outside the permanent structures, the piping tunnel from the Borated Water Storage Tank and localized spills.

Each of these sources is discussed below.

Permanent structures that could contain significant radioactivity are the Containment, Auxiliary, Fuel Handling and Control Buildings. Each of these structures is founded on island bedrock, several feet below the average groundwater table. Each building is designed to minimize in-leakage, and lower elevation sumps are provided to collect and transfer the liquid to radwaste systems for processing the liquid that is collected. Because of the exterior head of the groundwater, and design features such as a sealed circular reta ing wall surrounding containment, significant leakage from these buildings to the water table is not likely.

The Unit 1 borated water storage tank (BWST) is the only significant source'of radioactivity in tankage at TMI-l that is outside the above permanent structures. The BWST is a stainless steel tank that is constructed on a concrete slab.

The BWST level is monitored and alarmed. Periodic samples are taken from the BWST tank fluid for gross activity

1 l

l l

l 1

I and boron concentration. Further, radiation surveys are j routinely conducted around the BWST. In the event of indicated leakage onto the concrete pad or onto the soil, the contamination would be evaluated as a local spill discussed below.

The only piping external to the permanent structures containing significant radioactivity is that runnin in a tunnel from the BWST to the Unit 1 auxiliary buildi.ng.

This tunnel, which is partially within the ground water table, contains a sump to collect and transfer to processing any liquid collected from water infiltration or from piping leakage. (This same system serves the tendon access gallery, also sealed with an epoxy compound,of the lowest elevation

, of the containment building,and the heat exchanger vault adjacent to the auxiliary building.)

Localized spills are handled on a case-by-case basis.

Spills-or leakage that may occur from radioactive liquid transport processes that are carried out external to the auxiliary building may contaminate the soli surrounding the

. unit. Following the occurrence of a spill, the affected area would be radiologically surveyed. Affected soil would be removed such that the remaining soil would not exceed an average of 10% of the water MPC (10CFR 20, App B) for unrestricted areas, and that no soil sample would exceed 25% of the water MPC for unrestricted areas.

4 t

As discussed in Licensee's testimony on Separation, Licensee is installing a mobile solidification system adjacent to the Unit 1 auxiliary building. This system will be located on a seismic concrete slab. Although this system is leak checked prior to being placed in service, curbs are provided to contain spills occurring during solidification processes. Additional spills would be treated as discussed above under localized spills.

In the event the above design provisions and measures may require additional protection in cleanup operations for severe accidents, Licensee would institute a program similar to that of TMI-2 as explained below, for identification of potential sources,' reducing and monitoring potential leakage

, points and monitoring groundwater contamination.

I i-L .

~.

RESPONSE TO BOARD QUESTION NO. 9(c)

BY WITNESS RIETHLE:-

Since the implementation of the sampling program, above-background levels of tritium have been detected in various ground-water samples. ' s indicated in Figures 2(a) through 2(o),

tritium readings generally have been variable, although the levels are somewhat higher around Unit 2 structures. Recent test results from MW-2 have indicated higher levels of cesium-137, cesium-134, and cobalt-60 than were previously recorded. These test results are shown in Table 1. No o+.her significant concen-trations of fission-produced radioisotopes or nonradioactive chemicals nave been found.

D k

RESPONSE TO BOARD QUESTION NO. 9(d)

[f WITNESS RIETHLE:

Groundwater monitoring and soil sample data suggest more than one source of radioactivity. At the request of the onsite NRC staff, Licensee submitted a report evaluating the increased levels of radionuclides that have been detected in the ground-water, including identification of potential sources of contamination. The potential sources considered in the analysis include: (1) leakage and airborne releases during Unit 1 plant operations; and (2) Unit 2 sources. The potential Unit 2 sources identified were:

(a) BWST -- The BWST has contained radioactive water since immediately after the March 28, 1979 acci-dent. Leakage to the ground from pumps, valves and piping at the BWST has been identified since the accident.

(b) Auxiliarv Building -- The March 28, 1979 accident resulted in the contamination of this building.

The discovery of a contaminated seam between the auxiliary building and the-control cad service building has prompted investigations in this area.

I l (c) Reactor-Building -- The reactor building is flooded-l .to about the 290 foot elevation with approximately l 600,000 gallons of radioactive water. Possible leakage from the reactor building is a potential source of radioactivity in the ground.

(d) Local Effects -- Spills of radioactive water or con-I tanination at doors could contribute to the presence of radionuclides in the ground. Examples of such sources include:

1. EPICOR I -- This low-level radwaste processing system has processed radioactive water from Units j 1 and 2. Leakage from this system could contribute to radioactivity in the ground.

e- .

L

2. EPICOR II -- This radwaste system was used to process the contaminated water from the auxiliary building. Leakage from this system could contribute to radioactivity in the ground.

Each of these sources has been assessed as a potential contributor to the radionuclides found in the ground at TMI.

The results cf this assessment are summarized below.

1. Unit 1. Generally, the groundwater monitoring data reveal tritium levels near background in all the wells near Unit 2. Although there is no evidence that these tritium levels originate from Unit 1, it is conceivable that small amounts of leakage or airborne releases over dhe years of Unit 1 operation could have contributed to these levels. This is possible because the Island has a hydrological gradient of groundwater flow from north to south.

2. Unit 2. There are several potential sources of radio-i nuclides from Unit 2.

(a) BWST. On March 30, 1979, the Unit 2 BWST was filled with water from the Unit 1 spent fuel pool. This water contained tritium, cobalt-58, cobalt-60, cesium-134 and cesium-137. Since the accident, there have been instances of BWST water leakage from pumpr, valves and piping at the BWST. Although in each casa action was taken to capture the leakage and fix the leaks, it is apparent that this leakage did result in deposition of radionuclides into the surrounding soil. Soil samples taken as part of decontamination done in December 1979 revealed Co-58, Co-60, Cs-134, and Cs-137 near the ground surface at the BWST.

i Between March 29 and April 12, 1980, 332,000 gallons of water were transferred from the BWST to Unit 1. Between April 19 and June 24, 1980, approximately 330,000 gallons of processed water from EPICOR II were transferred to the BNST mixing with 130,000 gallons remaining in the BWST. This mixed water continued to contain Co-58, Co-60, Cs-134, Cs-137 and tritium. Soil samples taken at the surface around the BWST in the spring of 1980 revealed the presence of Co-58, Co-60, Cs-134 and Cs-137. In September 1980, the area around the BWST was excavated as part of the construction work associated with enclosing the area around the BWST. Soil samples taken in this area also revealed the presence of Co-58, Co-60, Cs-134 and Cs-137.

When the data from the above chronology are assessed with the data received from the monitoring wells near the BWST, it becomes evident that the BWST is a major source of radionuclides in the ground on the east side of Unit 2. Tritium has consistently been found in the groundwater monitoring wells and well soil

samples near the BWST in concentrations generally higher than in

{ other areas near the plant. This supports the conclusion that the history of leakage from the BWST has contributed to tritium l

in the groundwater of the adjacent area. In addition, the ground-water monitoring data show a correlation of tritium concentration l

with distance from the BWST -- i.e., the closer to the BWST the

- higher the tritium concentrations. The presence of cesiums and l cobalts-in the groundwater.and the soil-also is consistent with i

i 1

- --, - . -- ~,- --.,,-m -----y .*v -

-. *y. . w-

the conclusion that leakage from the SWST is the major source of radionuclides in the adjacent area.

(b) Auxiliary Building. The sampling program performed as part of the investigation into the contaminated building seam indicates that the plant water stops have prevented contamination from migrating laterally to the environment. There is no conclusive evidence, however, that the water stop which would prevent migration in the vertical direction downward is holding.

Therefore, the auxiliary building cannot be ruled out as a possible source of radioactive isotopes in the groundwater.

Current data, however, suggest that leakage from the contaminated seam would be minimal, if not nonexistent. For leakage to occur from the bottom of the foundation, the lower horizontal water stop would have to b' broken. Although this is possible, any crack or break would 'robably not allow free flow of water.

Moreover, given the re '.ationship between groundwater elevation at TMI and the location of the contaminated seam, there exists only a small'(maximun of l'-6") and variable hydraulic driving

.-head. Thus, any flow would be expected to be small and intermittent.

(c) Reactor Building.. The contaminated water in the reactor building is a potential source of radioactivity in the ground at TMI. As indicated previously,'the groundwater monitoring program was initiated as.a warning system for reactor building leakage.

Data from the program and from other sources indicate that the reactor building does not have a prominent leak.

Although tritium and cesium have been found in the ground, there is no correlation of isotope concentration with distance from the reactor building. In addition, there continues to be a good correlation between the quantity of water in the reactor building (as estimated by building water level) and the in-leakage to that body of water from the reactor coolant system (as measured by RCS makeup). In other words, there is no indication of I

significant loss of inventory from the reactor building.

(d) Local Effects. Relatively higher levels of tritium have been found in the unsaturated (above groundwater level) zone on the west side of Unit 2 by OW-13B and OW-14. This suggests a local, near surface source. The tritium levels found deeper in the unsaturated zone and below the groundwater level could be explained by. tritiated water percolating down from the surface, although tritiated water moving horizontally with the groundwater cannot be discounted for the tritium found below the groundwater level. Though no specific local source can be identified at this time, potential r,curces include:

j 1. EPICOR I. Surface soil samples near EPICOR I reveal Cs-137 and Cs-134 in the 104pCi/kg range.

! Although these findings make EPICOR I a potential l Source of radioactivity in the groundwater, there

~

are no data which would indicate that the radio-nuclides being measured originate from EPICOR I.

Operation of EPICOR I has since ceased.

2. EPICOR II. This radwaste processing system is on the east side of Unit 2 in the area of the BWST.

At this point, EPICOR II is not suspected as a source of radionuclides in the ground because the levels of tritium found in the proximate monitoring wells are generally lower than those in other locations 4

further from the EPICOR II system.

6 1

f C

2ESPONSE TO BOARD QUESTION NO. 9(e)

BY WITNESS RIETHLE:

Thera are several mitigative measures available to limit groundwater contamination. One measure is recharge, which involves pumping clean war into the underground aquifer system to dilute the concentration of contaminants. Other methods include drilling interceptor wells into the flo' of the contaminated water, or the placement of a grout curtain which will contain the contaminated water. The contaminated water can

' then be pumped to the surface for collection and treatment.

Another procedure is to pump from the contaminated well until the contaminated water is removed, collected and treated.

e

i Figure 1 Well Locations 4=N MW-2 OW-9 0W-10 MR ON'Il O EPICOR n s O BWST MW 4 C

O $

DW STORAGE ~ ~

TANK Q wz

, ,wm o

=E O W 16 S 25 l s" Ea Gd 55 OS AUX. SUlL DING

/TUNIT 2

• TUR3WE FUEL HANDLING f REACTOR EUIl0INO BUILDING i BUILDING 8

DIESEL l  ! M W-5 e

GEN.Bli -

l ~j- h I MW-8 G G S l Legend OW-14 OW-13 MW-6

( BWST- keted weier sure,e Test OW - Decontamineted wetw OW -chervsties well MW - Monitw weII

$ MW-7 COMMENTS:

'4 4 1.MW-1 LOCATED IN THE NORTH PARKING. LOT AT COORDIN ATES 94 E2 86 5 2.0W-15 LOCATED ON SOUTH END OF ISLAND AT COORDIN 22ATES 76 09

i f

i.

TMI ENVIRONMENTAL CONTROLS CROUP MONITORINGWELLth)MBER1 10 . . . . . - - - - - - -

E3 TRITIUM CONCENTRATION (PCI/L) UERSUS TIME g -

T 8 - -

R l I T 7 - -

I U ~

M 6- . -

S ,

n h i n

c/ s!

I w

L 4 L-I l

T E 3 '- -

R 2 - -

t -

e o J i

F M

i A

d @_ AGOG W M &on ,

N J J A S 500919s M uo_e4 W R 0 N D J

. A E A P A U U U E C 0 E A

,g N B R R Y N L G P T U C N F

1980 1981 i

e t

I

TMI ENVIRONMENTAL CONTROLS GROUP MONITORINQ WELL MUMBER 2 10 . . . - - - - - - -

E3 TRITIUM CONCENTRATION (PCI/L) VERSUS TIME i g _ _

T 8 - -

R I

T 7 - -

I U -

n6 - -

2 i m

P c5 -

g$

n i I o

/ w L 4 - --

I --

7 ..

E S f- -- -

R __

~~

2 F

-- ~~

}

F~

1 -

i 0

J F M A M J J A S 0 N D J

i. . A E A P A U U U E C 0 E A i

N B R R Y N L G P T U C N 1

1980 1981 l

l 4 I

e

i TMI EtlUIRONMENTAL CONTROLS GROUP MONITORING LTELt. MtJff3E4 3 10 -

, I W y w 4

h E3 TRITIUM CONCENTRATION (PCI/L) UERSUS TIME 9 - -

' T 8 *- _

e R

i I T7L _

I

' U M Gr y

U

_a n

P cs _

• Uy O'

a

,' ' I  :

/  ;

[

L _

I I 4h. (

j T . <

E 3- -

g -~

' -~

..j -

f 2 -

~

._$;h

'@__ l" M i 1 g -

t I I -

g -: 1 I .

. o ' ' ' ' '

- i 1980 1981 t

I

'l .

'l TMI EtIVIRONMENTAL CONTROLS CROUP MONITORINC UELL MUMBER 4 r

10 . . . . . . . . . .

E3 TRITIUM CONCENTRATION (PCI/L) UERSUS TIME 3 9 - -

T 8 -

R

! I T 7 -

I U _

N 6 -

3 I N

P C 5- -

_ $ "m I @

/ H L 4 -

I T

E 3 -

R 2 -

i ._

0 J

I

F

' 3' ' = k -

M A M J J A S 0 N D J A E A P A U U U E C 0 E A N B R R Y N L G P T U C N l 1980 1981

.I

[

0 9

L

3

j TMI ENVIRONf1 ENTAL CONTROLS GROUP MONITORING WELL M11NBER 5 to . . . . . . . . . -

E3

-r- '

TRITIUM CONCENTRATION (PCI/L) VERSUS TIME 9l-- -

!l i

., t T 8 IL -

, R I

I I

l" T

y 7L -

'd t U .

MG - - S

n i g$

P cs - -

I o

(.i / [

.I L 4- -

',, ! I k

. T  :

l E 3' '

R i

i 2 - -

. I i

i -

' #5 # i 0 J

. i F M A 11 J J A S 0 N D J

'.i A N

E A P A U U U E C 0 E A

-  ! B R R Y N L G P T U C N 1980 1981 1-

i s

, TMI ENVIRONf1 ENTAL CONTROLS GROUP f10NITORIN3 WELL PtFCER S i 10 . . . . . . . . .

E3 TRITIUM CONCENTRATION (PCI/L) UERSUS TIME g - -

4 7 8 - -

R I

T 7 - -

I l U _

M 6 - -

P cs I

lR o

/ U L 4 - _

I T

E 3 - -

R 2 - -

1 -

E 0 ' ' ' '

J F M A N J J A S 0 N D J A E A P A U U U E C 0 E A N B R R Y N L G P T U C N 1980 1981 I

i i

1

(

h

i:

l' i

i TMI ENVIRONMENTAL CONTROLS GROUP MONITORING UELL MUttBER 7 to . . . . . . . . . .

E3 TRITIUM CONCENTRATION (PCI/L) VERSUS TIME T 8- -

R j I '

T 7 l-- -

I

. U M 6 ,- - 3

i M,d P

C s - . -

I I @

/ H L 4 -

I T

, E 3 -

R a -

I

, L .-

0 ' ' * >

' b"U * -

J F M A M J J A S 0 N D J A E A P A U U U E C 0 E A N B R R Y N L G P T U C H 1980 1981

..l..

I

)

t l TMI ENVIRONMENTAL CONTROLS GROUP MONITORING UELL NUMBER S to . . . , , , . . . . . . .

E3 TRITIUM CONCENTRATION (PCI/L) UERSUS TIME i 9 -

T 8 -

. R l I T 7 -

I U -

i M 6 -

S ,

I "n

P cs - -

ga n i I o

/ U

, i L 4 -

- i

, I I T E 3 '

R

. 2 -

1 0

bbE 8tHIEg3 gnu &BBB3 J F M A M J J A S 0 h D J A E A P A U U U E C 0 E A i N B R R Y N L G P T V C N i, 1980 -

1981

} .

1 .

t 9

i I

TNI ENVIRONMENTAL CONTROLS QROUP ODSCQUATION VELL Mtm3Et 9 10 . . . . . . . . . . . . .

E3 .

TRITIUM CONCENTRATION (PCI/L) UERSUS TIME '

9 - -

1 i T 8 - -

. R I

T 7 -

I l' U -

9 M 6 -

d ,

i (1 m ,

P C 5 -

• g "'

n

. I o

, / E.

L 4 -

I i l']-

T

. E 3 -

d R T.

i y ,

{ __

2 -

g r j 3

1 -

g .

.i '

' EIIELud' '

Eb ' '

0 ' ' ' ' ' ' '

J F M A N J J A S 0 N D J

'. A E A P A U U U E C 0 E A N B R R Y N L G P T U C N 1980 1981 1 .

1 4

i 0

8 TMIE5VIRONMENTALCONTROLSGROUP OBSERVATION WILL PURSER 10 I 10 . . , . . . . . . . . .

53 TRITIUn CONCENTRATION (PCI/L) UERSUS TIME 9 - -

T 3 - -

R I

l T 7 - -

I

. U _

6: N 6 - -

O,

,l " ,

P u n

, C 5 - - -

3 I e

/ U L 4 -

I T

E 3 -

i R 2 -

_. l .-

{ r  ! '"_ )_

t -

UNED

' o J i . .

F M A N J A S O N D J l A E A P A U U 'O E C 0 E A i N B R R Y N L G P T U C N

• {

1980 1981 n

i. ;

,r .

.t.

't I' TMI ENUIRONMENTAL CONTROLS CROUP OBSERVATION UELL NUM5te 13n I

10 . . . . . . . . . .

E3 i TRITIUM CONCENTRATION (PCI/L) UERSUS TIME i

g - -

T 8 - -

R I

i T 7 -

I U _

M 6 -

5, p S C 5 I

!o

/

L 4; ,

[

I 9 T

E 3h -

,, R  :

i,  :

2 E-- -

(. 1- -

n 8NN

i. , , ,

0 i

J F M A N J J A S 0 N D J

-( A E A P A U U U E C 0 E A

.,- N B R R Y N L G P T U C H i 1980 1981 l

f iE t

,ilf I ,'

Tn! Ei;VIRONMENTAL CONTROLS CROUP OLSERVATION b' ELL MtmBER 14 y 5 Y 5 5 5 5 5 5 y v v E3

, TRITIUM CONCENTRATION (PC1/L) UERSUS TIME

, 9 - -

T 8 - -

R I

T 7 - -

<. I U -

MG - -

d n

• P cs - -

gMi i p

. I $

/ k

, L 4 - -

I T

E 3 - -

R I

E - -

1 _

W,'f-@ '

0 J F M A M J J A S 0 N D J A E A P A U U U E C 0 E A N B R R Y N L G P T U C H 1980 1981 ti i

a Id 00 r, .,-

e ik

TMI EMUIRONMENTAL CONTROLS CROUP ODSERUATION WELL MUMBER 15 y y v v 5 7 '

W v V W Y E3 TRITIUM CONCENTRATION (PCI/L) VERSUS TIME i..

4 g -

T 8 - -

l. R

I T 7 - -

I U -

l l

,. M 6 - -

'E'- '

m

! P N

. cs - - -

I o

/ y li  ;

L 4 - -

7 T

? E 3 - -

... R sy;

's 2 - -

',i '

i

i -

1 _

4) 0 ' ' ' 300 1 38' ' ' ' ' ' '

J F M A N J J A S 0 N D J

'. A E A P A U U U E C 0 E A j' N B -

R R Y N L G P T U C H

i. 1980 1981 lill '

1 ,

.I ' ,

i i

TMI ErlVIRONMENTAL CONTROLS OROUP OBSERVATIUM WELL MUMDER 16 i 10 . . . . . . . N .

E3 i TRITIUM CONCENTRATION (PCI/L) UERSUS TIME g _ _

T S - -

R I

i T7 - -

) I 4

,: U _

M 6 - -

S,

?; m P

es -

gn n i

, . I ) _ _-

e I'

, i I

L 4 I

IT a

~

^

T '

1 lj T

E 3 -

H y_ _l

'l R -

2 -

[

i'

, 1 -

I 6

0' 8

} J F- M A N J J A S 0 ti D J A E A P A U U U E C 0 E A

'] N B R R Y N L C P T U C N

] 1980 1981 O

I I

l i

Tn! ENUIRONMENTAL CONTROLS CROUP 03SERUATION WELL NUR3ER 17 10, . . . . . - . . . . . . .

'l l

E3' ,

l TRITIUM CONCENTRATION (PCI/L) VERSUS TIME ,

9 }- -

.l 2

T 8 - - i R -l I

ll 7 7- -

I U -

M 6 - -

m P

C S -

• gn n

o e i I o

/ U L 4 - -

I T

E 3 - -

R

~

2 -

. 1 -

LI hi 2

,Jaafd 0 J F

M 1 A M J J A S 0 N D J

. A E A P A U U U E C 0 E A l

1 N B R R Y N L G P -

T U C N l 1980 1981 1

l i

Table 1

{

Analysis of Groundwater Samples Taken from MW-2 Date Cs-134 (pCi/ ) Cs-137(pCi/ ) Co-60(pCi/ )

November 12, 1980 9.62t4.42 December 3,1980 5.90!2.36 Dec2mber 10, 1980 12.916.2 30.214.2 December 17, 1980 35.014.9 88.118.8 December 24, 1980 10.5!3.9 24.115.9

December 31, 1980 9.0 10.0 January 7,1981 9.6814.28 16.915.9 January 14, 1981 36.615.0 81.4!7.8 January 21,1981 7.71!3.62 13.714.5 January 28, 1981 5.0 7.7014.36

. February 4, 1981 6.213.6 12.7t3.5 February 11, 1981 134 371 14.3 February 18, 1981 75.917.6 189118.9 February 25, 1981 21.614.1 56.215.6 March 4,1981 - 45.0 45.0 March 11, 1981 <5.0 19.514.5 i- .. ..- . . -. -- . .. - .. - . . - --

WILLIAM E. RIETHLE, III Business Addrest: TMI Nuclear Station P.O. Box 480 Middletown, Pennsylvania 17057 Education: B.A., Biology, University of Pennsylvania, 1970.

M.S., Environmental science, Drexel University, 1972.

M.S., Health Physics, Rutgers University, 1973.

Excerience: Manager, Environmental Controls TMI; GPU Nuclear, 1979 to present. Responsible for the formation, implementation, and performance of the Company's environmental group at TMI. Responsible for biological and radiological environmental monitoring activities and studies at TMI.

Senior Licensing Engineer; GPU Service Corporation, 1976 to 1979. Performed environmental licensing and nuclear licensing duties for Forked River Nuclear Station, environmental licensing of fossil plants, and site selection studies.

Chief Project Licensing Coordinator; Stone &

Webster, Inc., 1976. Performed environmental and nuclear licensing duties for a domestic nuclear power plant.

Licensing Engineer; Ebasco Services, Inc., 1973 to 1976. Performed environmental licensing duties'for several domestic and foreign nuclear power plants.

Head, Radioimmunoassay Laboratory, Nuclear Medicine Department; Middlesex General Hospital, 1972 to 1973. Responsible for the formation and operation of a radioimmunoassay laboratory.

Research Ascistant, Radiation Research Laboratory; Albert Einstein Medical Center, 1970 to 1972.

Performed experiments in cancer / radiation effects area.

Sergeant, U.S. Army Reserves, 1966 to 1972.

Honorable Discharge.

. . . _ _ - - . _ . _ - _ . _ _ . . _ _ _ . _ - . _ . . _ _ . _ _ _ _ _ . _ - - - . .m.. . _ _ _ _ . . _ - __ .__ m ____ . _ _ _ _ .

t i

Professional

Affiliatio67 American Health Physics Society. .

t Publication: " Metropolitan Edison Company's Radiation Environmental Monitoring During Venting of TMI-Unit 2 Containment", Transactions of the American Nuclear Society, Volume 35, November 1980. i i

4 f.

I 1

3 f

(

i i

J l

9 s

i UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of )

)

METROPOLITAN EDISON COMPANY ) Docket No. 50-289 (Restart)

(Three Mile Island Nuclear )

Station, Unit No. 1) )

CERTIFICATE OF SERVICE I hereby certify that copies of " Licensee's Testimony of William E. Riethle and Edwin C. Fahrer In Response To Board Question No. 9 (Groundwater Monitoring At TMI)" were

. served this 23rd day of March, 1981 by deposit in the United States mail, first class, postage prepaid, to the parties identified on the attached Service List, except that the parties identified by a single asterisk were served this day by Federal Express, and the parties identified by a l

double asterisk will be handserved on the 24th day of March, 1981.

l I

l sbE k DelissaAbRi[gwh ma, O

Dated: Maren 23, 1981

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of )

)

METROPOLITAN EDISON COMPANY ) Docket No. 50-289 i

) (Restart)

( (Three Mile Island Nuclear )

Station, Unit No. 1) )

SERVICE LIST

• • Ivan W. Smith, Esquire John A. Levin, Esquire Chairman Assistant Couat.el l Atomic Safety and Licensing Pennsylvania Public Utility Comm'n Board Fanel Post Office Box 3265 i U. S. Nuclear Regulatory Commission Harrisburg, Pennsylvania 17120 -

Washington, D. C. 20555 l Karin W. Carter, Esquire l **Dr. Walter H. Jordan - Assistant Attorney General i Atomic Safety and Licensing 505 Executive House Board Panel Post Office Box 2357

• 881 West Outer Drive Harrisburg, Pennsylvania 17120 Oak Ridge, Tennessee 37830 t John E. Minnich l **Dr. Linda W. Little Chairman, Dauphin County Board l Atomic Safety and Licensing of Commissioners Board Panel Dauphin County. Courthouse 5000 Hermitage Drive Front and Market Streets Raleigh, North Carolina 27612 Harrisburg, Pennsylvania 17101 l ** James R. Tourtellotte, Esquire (4) Walter W. Cohen, Esquire l Office of the Executive Legal Director Consumer Advocate U. S. Nuclear Regulatory Commission Office of Consumer Advocate l Washington, D. C. 20555 14th Floor, Strawberry Square Harrisburg, Pennsylvania 17127 Docketing and Service Section (3)

Office of the Secretary U. S. Nuclear Regulatory Commission l Washington, D. C. 20555 l

Jordan D. Cunningham, Esquire

• William S. Jordan, III, Esquire Fox, Farr & Cunningham Harmon & Weiss 2320 North Second Street 1725 Eye Street, N. W., Suite 506 Harrisburg, Pennsylvania 17110 Washington, D. C. 20006 Ms. Louise Bradford

• Robert Q. Pollard TMI ALERT 609 Montpelier Street 315 Peffer Street Baltimore, Maryland 21218 Harrisburg, Pennsylvania 17102

• Chauncey Kepford

• Ellyn R. Weiss, Esquire Judith Johnsrud Harmon & Weiss Environmental Coalition on Nuclear 1725 Eye Street, N. W., Suite 506 Power Washington, D. C. 20006 433 Orlando Avenue State College, Pennsylvania 16801

• Steven C. Sholly Union of Conecrned Scientists

• Marvin I . Lewis 1725 Eye Street, N. W., Suite 601 6504 Bradford Terrace Washington, D. C. 20006 Philadelphia, Pennsylvania 19149

• Sail Bradford ** Marjorie M. Aamodt ANGRY R. D. 5 24513est Philadelphia Street Coatesville, Pennsylvania 19320 York, Pennsylvania 17404

• Attorney General of New Jersey Attention: Thomas J. Germine, Esquire Deputy Attorney General Division of Law - Room 316 1100 Raynond Boulevard Newark, New Jersey 07102

, ,. .n - , - , . -- - -- -