ML20050E214

Rept on Foundation Investigation:Fire Water Tank:Rowe Atomic Plant

ML20050E214
Person / Time
Site:	Yankee Rowe
Issue date:	02/22/1980
From:	GEI CONSULTANTS, INC. (FORMERLY GEOTECHNICAL ENGINEER
To:
Shared Package
ML20050E211	List: ML20050E210 ML20050E214 ML20050E216 ML20050E219
References
NUDOCS 8204130110
Download: ML20050E214 (23)

Text

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s REPORT ON FOUNDATION INVESTIGATION FIRE WATER TANK

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ROWE ATOMIC PLANT ROWE, MA 3

1 Submitted to Yankee Atomic Electric Co.

]

Submitted by

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Geotechnical Engineers Inc.

1017 Main Street Winchester, Massachusetts 01890 February 22, 1980 Project 79617 J

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TABLE OF CONTENTS Page No.

LIST OF FIGURES 1

1.

INTRODUCTION 1

1.1 Purpose 1

1.2 Scope 2

2.

SUMMARY

3 3.

SITE AND PROJECT DESCRIPTION 3

3.1 Site Description 3

3.2 Project Description

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4 4.

SUBSOIL INVESTIGATIONS 4

4.1 Field Investigations J

4 4.2 Laboratory Tests 5

5.

SUBSOIL CONDITIONS 7

6.

FOUNDATION RECOMMENDATIONS L

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FIGURES APPENDIX A - Boring Logs

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1.

INTRODUCTION 1

1.1 Purpose Th_e purpose of this report is to present the results of our subsurface investigation for the proposed fire-water tank at the Rowe Atomic Plant, Rowe, MA.

1.2 Scope The scope of work for this investigation included the

]

following:

Plan subsurface investigation with representatives a.

]

from Yankee Atomic Electric Co. (YAEC).

b.

Provide field observations of drilling activities

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performed by the drilling contractor, Guild Drilling Co.

c.

Perform laboratory tests to determine index proper-

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ties of subsurface soils.

d.

Evaluate the subsurface conditions at the site for

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static and seismic loads and make recommendations for foundation design.

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In addit' ion, GEI has the responsibility to provide drawings and specifications for the foundation aspects of the project, which will be submitted separately.

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2.

S UfiMARY A subsurface investigation was made at the site of the proposed 350,000 gallon fire-water tank at the Rowe Atomic

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Plant.

The investigation consisted of five borings and the installation of one observation well.

These borings revealed that an adequate bearing stratum 3 ft from the is located beneath the fill at a depth of 2. to The subsoils below this depth are not present ground surface.

susceptible to liquefaction or the development of excessive strains during the design earthquake based on the criteria in the Massachusetts State Building Code.

The proposed tank and pumphouse may be founded on firm natural soils below'the fill.

The excavation should extend to a minimum depth of four feet below the ground surface and The deeper if any unsuitable materials are encountered.

foundations may be constructed directly on the natural soils Dewatering may or on compacted nonfrost susceptible backfill.

be required to maintain the excavation dry during construction.

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SITE AND PROJECT DESCRIPTION t

3.1 Site Description The site of the Rowo Atomic Plant in Rowe, MA is shown in Fig.

1.

The proposed tank will be located near the south c

corner of the fenced plant area, as shown in Fig.

2.

The vapor containment structure, turbine building and related plant facilities are located to the north and east of the proposed tank site.

The site slopes downward to the north it approaches the Sherman Reservoir.

Based on conversations aswith plant employees, the proposed location of the tank is likely to be in an area which was cut to an approximately level plant grade during construction of the plant.

A stream which had originally flowed through this cut area was relocated to the left (southwest) of the plant site.

A small flow of water still occurs in a drainage ditch which is located along the westerly fence.

The ground surface elevation in the proposed tank area is about 1033 to 1034 ft.

(Plant Datum is 105.66 ft above USGS Datum.)

3.2 Project Description Based on discussions with YAEC, it is. presently planned to use a 350,000 gallon steel tank, 42 feet high by 40 ft in dia-meter.

The tank will be founded at the ground surface and used for the storage of water for use in fire emergencies.

A pumphouse will be located to the west of the tank with the near edge about 3 ft from the tank.

The pumphouse will be about 16 feet by 22 feet in plan dimensions and will consist of a metal prefabricated structure founded on a concrete slab.

This structure will house the pump, fuel tank, and valving for con-

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trolling the flow of water from the tank.

The piping between the tank and pump will be above ground and

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installed in a sleeve which will be heated when necessary to pre-vent freezing of the water in the pipe.

The temperature of the

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water in the tank also will be controlled to prevent freezing.

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SUBSOIL INVESTIGATIONS 4.1 Field Investigatio'ns f

During the first phase of the project, the actual tank location had not,been established.

The purpose of the initial borings was to determine the general suitability of the subsurface conditions in the areas defined by YAEC as

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potential tank locations.

Borings 1 through 5, located in the site plan in Fig.

2, were performed by Guild Drilling Co. between October 1 and q

1 October 11, 1979.

Logs of these borings prepared by GEI a re included in Appendix A.

The borings ranged in depth from in-29.8 ft to 61.7 ft.

A groundwater observation well was stalled in Boring No.

3, after completion of the sampling operations.

Additional borings which had been planned for the area to the northwest of Borings 3, 4 and 5 were eliminated based on the favorable subsurface conditions found in the initial borings.

4.2 Laboratory Tests Af ter completion of the borings, the samples were brought to our l'aboratory for verification of the visual descriptions made in the field.

Six grain-size analyses were performed on representative samples from the borings to aid in sample descriptions.

The results of these tests are given in Figs. 3 to 5.

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5.

SUBSOIL CONDITIONS The subsoil profile at the site may be generalized as follows for foundation design purposes:

1.

Fill - In all borings, the top two to three feet of soil was classified as fill.

The soil is typi-cally a widely-graded gravelly silty sand and may 1

consist of in-place materials which were reworked during,the construction of the plant.

The standard penetration resistance in the fill ranged from 23 to 65 blows /ft.

2.

Brown Gravelly Silty Sand - Below the fill, a layer consisting predominantly of widely-graded brown

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gravelly sand was encountered.

The gravelly sand generally contains 5-20% silt and extends to depths of 7 to 12 f t below the ground surface except in 1

Boring 4, where this deposit extended to about 23 ft.

In Borings 2 and 3, zones of brown silty fine sand to sandy silt were interlaced with the brown widely-graded gravelly sand.

Layering was observed in some samples of these finer soils.

The standard penetration resistance for the gravelly sand varied from 15 to more than 100 blows /ft.

During sampling,

]

the number of blows per inch for the entire sample was recorded.

In a few cases a rapid increase in blows per inch occurred which is probably due to the sampler encountering a piece of gravel; however, the

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majority of blowcounts recorded did not appear to be a f fected by this phenomenon.

Standard penetration resistance values in the layered silty sands and silts ranged from 21 to 43 blows /ft.

3.

O_ live Gravelly Silty Sand (Till) - Dense glacial till was encountered in all of the borings below the brown gravelly silty sand.

The till was typically an olive, widely-graded gravelly silty sand to sandy silt.

In some samples, the silt content was higher than the

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content of coarse-grained soil.

Occasionally, cobbles and boulders were encountered in the borings.

The standard penetration resistance values were occasionally in the range of 38 to 50 blows /ft but were more typically greater than 50 blows /ft and frequently greater than 100 blows /ft.

A few of the higher blowcounts appeared to be the result of the sampler encountering a piece of gravel.

However, most of the blowcounts appear not to have been influenced by this phenomenon.

All of the

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borings were stopped in this layer of till.

Total pene t ra tion into the till ranged from 7 to 54 ft in the borings.

~~

4.

Silt and Cl_ag - In Boring 5, a layer of mottled claycy silt and silty clay was encountered at a depth of about 4,5 ft.

This layer was about 8-ft-thick and had glacial till above and below.

Standard penetration

~~

resistances of 29 and 54 blows /ft were obtained from the two samples taken.

5.

Groundwater - A groundwater observation well was in-stalled in Boring 3 af ter the sampling was completed.

The depth of the groundwater in this well varied from 3.6 ft to 4.3 ft between October 9 and October 23, 1979.

These depths correspond to El 1028.7 to 1029.4 based on Plant Datum.

The elevation of the groundwater may vary at dif ferent times of the year and may be dif ferent during construction.

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FOUNDATION RECOMMENDATIONS Basdd on the borings performed to date, the fo llowi'ng general conclusions and recommendations are presented.

De-tailed considerations of the founda tion des ign will be com-pleted af ter the. details of the structures are provided by YAEC.

l.

The subsoils are not susceptible to liquefaction or to the development of excessive strains during the design ca rthquake, based on the requirements of the Massachusetts Building Code dated April 1979.

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2.

The proposed structures may be constructed on shallow foundations, founded on the firm natural soils below the surface till and below any soft deposits that may be encountered below the fill.

The anticipated depth of the fill is about 2 to 3 ft, which should

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be confirmed during construction at the actual tank loce tion.

The foundations must be at least 4-ft-deep or, alternatively, the soils to a depth

'1 of at least 4 ft must be replaced with compacted non-

'j frost-susceptible soil.

At the perimeter of the tank a crushed stone ringwall or concrete ringwall will be required to resist the high shear stresses in the foundation soil at the edge of the tank.

If the seismic analysis indicates that uplift forces may occur, a concrete ringwall will be required.

,1 3.

During the boring program, groundwater was encountered at a depth of 3.6 to 4. 3 feet below the ground surface.

The groundwater level may vary at different times of the year and may be different during construction.

The excavation should be performed in the dry so that the adequacy of the final subgrade can be evaluated and

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compacted.

Hence, provisions for dewatering should be included in the specifications.

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U.S.G.S. Quadrangle Map, Rowe, Massachusetts 1 in. = 2,000 ft Yankee Atomic Electric Co.

h.re Water Tank SITE IDCATION PLAN 1

Westborough, Massachusetts Rowe Atomic Plant WINCH ($f E ls M ASSACHU$E f l5 Project 79617 January 3, 1980 rig. 1 CitOTECHNICA L. f'NGtM:t:lt'+ INC A

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Fire Wate r Tank BORING LOCATION PLAN Westborough, Mastiat:hur.ctts g

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3f V

l l

l E

I 0

e e Q

I 4

0 S

1 a

v v L

a a S

r r D

E g g R s

~

L y

A B

n ey D

i ll B

w vg J

N O

o i AT i

l l

C r

l p S

B Og S.

I l

I' 0

0 J

m U

5 S

5 4

3 2

1 o

e 0

0 0

lp 1

7 pb gCyc55 a

S S C S J

C:l l

LEGEND FOR BORING LOGS s

Rowe Fire Water Tank s

Rowe, Massachusetts Ground elevations at boring locations were determined by Yankee 1)

Atomic Electric Co. personnel.

Soil descriptions were made in accordance with the procedure des-2) cribed in ASTM D2488-69 as modified in GEI Technical Procedure No.

54, rev. O, August 24, 1977.

Each boring log contains a graphic representation of the soil strata.

3)

The thickness of each stratum is based on information obtained from n

Since sampling the samples taken at the locations shown on each log.

it was necessary to approximate the location of

~,

was noncontinuous, many of the stratum boundaries.

1 I

The following legend is used for the graphic representation of soil strata:

.s-5 "If '

PREDOMINANTLY SAND; may contain gravel, silt, and/or boulders and cobbles.

/

PREDOMINANTLY SILT; may contain gravel, sand, and/or boulders and cobbles.

T

.}[,. :

SIMILAR PERCENTAGES OF SAND & SILT; may contain gravel and/or

,I 2 *."-(* ;'

boulders and cobbles.

1 1

MOTTLED CLAYEY SILT & SILTY CLAY l

predominantly gravelly, silty sand.

FILL;

]

1 Project 79617 Geotechnical Engineers Inc.

November 30, 1979

- 1 1

i

)-

1 PRO.ECT pm rire arrier unk LOCATICN _See toc. tion Pl**CRILLED By_ Culto OriL1!ny,,,Co BC'MG NO _H_an_t Law L

CATE S TARTED,.95tob-I L.1U9 INCUN,1 TIC (yertical,__ LOGGED BY,T,uo. retter CE,t_ GROUNO EL _1o:4.1 ft m

DafE CCvFtETE.)m.wr aan BEA;Y.NG_ticL_usmetc CHECKED BY. Data Auz. CU TOTAL DEPTHjygg K

c a

S&uPLE EL D E P TM ADv1NCE Or S0st'AND ROCK OESCniPf10NS REuama5 Cae y

f eet -

et0=s es e acc mo paa s*

SON a st G 2d it it m

m V

CPAW LLY, SILTY SAND: %3Cs fines, widely graded, subrounded SS-1 5-11-17 18 11 to angular grains, mas, slee 1-3/8*, nonstratified.

mica flakes, petroliferous odor, brown. ($M) - probably e

W casing ad-fitt material.

l wenced to

/

4.2 ft depth g

. y.

1030 55-2A: Top 2* - CRAVELLY, SILW SAN 0s Similar to $$-1 r

leate advanced

[

-5

,,c,pg u,,

,g,,

g.,

laminated appearance, some rust- -

"*1 3* /4

[

colored laminatLons.

L 12-140/.

ES-2 11 11 and 2-15/16"

$$-2B: Botton 4* - CPAVELLY, SILTY SAND: %156 fines, roller bits and.[i' g

b,*

angular grains, maa. sine 1-3/8*, mica flakes, black

.=

rotary coring

.j.i;'

with top portion sust colored. ($M).

using um d.e-2

.oad bit

.,t,

.N.

'.7 #,

1025 --

$s-3

> 104/3*

3 0

• ,'.O."

Revert drilling C R-l e CPAVE t.tY, STLTY SAND TO S ANDY StLT: Sand is mostly

- 10 fluid useJ to

@,,]

fine, subrounded to angular gr'aIn~s~ gravel up to 3*,

stabilite hole f,M nonstratified, mica flakes, cobbles and boulders up ff to 2 ft, trace of clay, olive. (SM-ML).

L CR-1 56 54

1. Eo'.*

> a. L 5,W P

CnAvrLLY, $1LTY S AND TO S ANDY $1LTs Sand is westly fine.

1020-~

$5-4 20-26 IS 12

&.*P" subrounded to angular grains, sax. size 1., non-

[

-- 15 u

stratified, mica flakes, trace of clay, olive, (SM-ML)._

T s.. a

(

~

h#/[

1*N*

1015.,,..

CR-2: CPAVELLY StLW SA.so to SA*.DY SI,t.T, S ir.ila r to CR-1. _

- 20 CR-2 59 36

• • M v.y.<,

.. e

,W '

c,M

~

{P '

CRAVELLY SILTY SAND TO SANDY SILT Siedlar to $$-4.

1010_

~

[f.f..<

$s-6 o-15-26 le 10

- 25 d

, j,

?a*,f

,o

? ;.

I.Y

• k u

.=

CEAVELLY SILTY SAND TO S ANDY SILT Similar to $$-4 man.

~

='"2*-

M

~

SS-2

5-3. 50 1.

I

,*11

- 3C Dotton Depth 29.8 ft Boring was back filled with groot e

1000 l

\\

1. 60= 1 et e s

• s e o ie me..., een. 30' ee e,s..

notts I

(1) Croundwater measurement taken RNE F1kE WATER TANK

'atC

• tocst * * **=***** e av. e of ee=sie in open hole on Oct.

4,

1979, Rowe, Massachusetts

(

g es.

e.

eu three days af ter completion of TANFIE ATOMIC E!ICTRIC COMPANT 3

k * #* * ** 8 * *

d r i11 Lng.

Westhorough, Massachusetts ts

• Se e see u p..

bd

]

"# CA = Rotary core sample-noeminal 1-1/9=

De M.2Livr =1. c in. 1979 Pnost*T eso _796 t ?

dia.

PaM t

0F.

1 Dunisse h0 1 _

' "*"

• H u to e se e se e e.. es,

___________.____m

i r

LOCATION ** 1*c'*L** '1** OH:LLEO er Guild nrtitiam BCRif AG NO _ 2 L

PAOET nae rir-water Tara 5

ria-t t.e t um Care S U.MED octc2.vt.g ts ys... INCUNMlON_.ycz:1 cal..

LOGGE0 BY r o..zelica cn. GROU'.0 EL.lon.3 fu._ _.

f D.*.TE CovTtETED or t__e_t_*r 11. 1979-BEAh!NG Not applic.tle CHECKED BYK. Da l a nh r,. C* t TOTAL OFPitt 50.6 ft t

(

I'" M l

EL DEPTM pgw Agns on t Pt -

stow s et =

arc ADV8.NCE Or Zg

$0it AND ROCK DE SCRIP fjONS I.o n.."

soainc p

fe it i.

a.

i k

V 55-1 7 35 18 10 CPAVTt.LY SILTY S ANov %154 fines, widely graded, secound.d,

h Advanced Sw to subangular grains, man, s1:e 1-3/8*, mica flakes, f

casing (6* IDI roots nea r top, bro.,n, (sm).

to 4.1 ft depth Probable cotble J'

~

from 1.5' to

[.h.$

1030 *-

2.5'.

a.alr'.

5 UliD note advanced

.f.*;- ImrNAr or srtTY rrhe sANo. s ANDY sitT, ANo rtNz s g. M..

[

55-2 15-17-2E 18 9

using 4-3/4" h

size 1-3/8*, sica flakes, several rust-colored lamina-b roller bit.

Eth tions tending to be coarser grained, occasional piece Revert drilling M:2 of coarse-e.edium sand, brown-tan, (SM, $P, ML).

fluid used to

?.T stab (11:e hole. (. *g..

1025_-

N.* D, 55-3 25-18-21 18 14

....i 58-38 lbP 7" - CPAVELLY SILTY sANo to SA.NDY SILT Max. site 1-3/8*, sica flakes, brown-tan, (5M-ML).

- 10

---a SS-3: Sotton 7* - 5 ANDY SILT: %30% coarse grained particles-

.i sostly fine sand, s'am. sire 3/4*,1* thick layer of clean fine sand, mica flakes. brown-tan. (E)

.t.

""1"""

'.@7 1

1020 -_

i(ll CPAv!LLY, SILTY S M D: %20% fines, widely graded, subrounded

..e Es-4

8-40-74 18 13

- 15

.I,*.'

to angular grains, max. stre 1-3/8", nonstratified ex _

U

• L, ','

cept for 1* thick layer of clean medlun-fine sand (SP)

P[.

4" f rom top of sample, weathered tone around g*,,

some gravel, mica flakes, olive, (sm).

y.k,;

4lk'*

4:i:

10 b g f.'E CRAVEllY. $1LTY $AND: Simila r to $5-4 except homogeneous.

~

p

,.r 55-5 29-4 7-16 14

.ry.

h 109/4*

• b.'

20

~

~

XV..

,'.t.;

, e'ri.

T*.' CRAVELLY, SILTY SAND TO SANDY STLT: Sand is sostly fine, 1010 -_

f

' ' 'I subrounded to angular grains, man, site 1*,non-

+

- 25 J

stratified, mica flakes, black and white inclusion 8~0 Y.h'.

which appears to be weathered cobble piece, olive.

.v (sm-sc ).

-*.'*.Y c..W ni.

.h

.~.~.

1005 N.' ' CRAVE!.t.Y, SILTY SAND to SANDY SILTS $1milar to $$-6 but t,r<j.

smalle r black and white inclusion and man. stre 1-3/8*.

SS-7 16-1M 12 9

Qf//

- 30 Usi

.T::

~

, :.G w:.

(coctinued on page 2) 1 1

1000-,.

I femaa 30*.e aM

O M S l.=*****

ses rt a.s.e ee.ecia me==.,

ROWE FIkE WATEM TAta nowe, moaachusetts e s =

Pea.=**** 8 *as** ** *s*

• TANKIL A10MIC glycTRIC COM,'ANY etC t ea va e' * *** * '** *' **

[ {.'se e.ea.e...

o Westborough, Monachusetts 8

3 3 3, e.eeen ee.,ee p

04fg_Noveder 30, 19 79 Pnodtr h0

.a 2

Pa r,t 1

op 2

commo o l

1

LOCATICN ee tocation Pla^ DHILLED Erf Cu:td Dr2111%Co BCAltJG t.O 2

S P80.ECT E'_wv_D re e r T**h 2

Plast Detu:

CME STA9f ED_rv-.w 19n_

INCUP.ATICN._Yettic;.1_

LOGGE0 BY r. u. renu nL GROU*.D EL,1cn.9_n _ __

DATE COuRETED oces,.c 11, 1979 BEARNG hot applic.ble CHECKE0 SYK. Da t*r.Le rg, cr t TOTAL DEPTH 50.6 ft LC (L

DEPf" Rfv&Rns ON y

5

E*

stows Pan arc A0v&NCE OF

=g

$ OIL ANO ROCK OESCRIPTIONS ho Pra s' 80 RING

8 ft if b

b

.e

$$-1 i F-30-35 18 10 CPACL?.Y SILTY SM3

%15s fines, widely graded, subrounded.

b Advanced SW to subasgular grains, san. sine 1-3/8*, mica flakes, casing (6* ID) roots near top, brown, (SM).

to 4.1 ft depth Probable cotble 1

?.'e.7,.

from 1.5* to

,74.;

1030 *-

2.5',

.a.' r '.'

5

,0l.?

[

Hole advanced

• //;' _tMINAE OF SILTY FINE SMD, SANDY $1LT. MD FINE S AN3:

Man.

$5-2 15-17-2f 18 9

using 4-3/4"

,g.,

size 1-3/8*, mica flakes, several rust-colored lamina-,

,3 roller bit.

it.5 tions tending to be coarser grained, occasional pie:e L

Revert dr111&ng $j2 of coarse-siediurs sand, brown-tan, ($M, SP, ML).

fluid used to f,.4.1 stabilise hole. ',. K,

• 9 :=

1025-

..e D 55-3 25-18-21 18 14 1 3/8*, sica flakes, brown-tan, (S.i *t:.).

_ 10 a

l

$5-3 Sottoa 7* - SMDY SILT: %30s coarse grained pa rticles.,_

smastly fine sand, man. size 3/4*, 1* t. hick layer of clean fine sand, mica flakes, brown-tan, (ML)

"*i-*

1020-.

'1

"**' *

• I 9'"

/..,[ *.

to angular grains, man. site 1-3/8*, nonstratified ex _

- 15

' 48-4'.- 74 18 13 SS-4

}

cept for 1* thick layer of cle.n mediu:n-fine sand (SP) 4* f rom top of sample, weathered zone around y,..'

some gravel, eica flakes, olive, ($M).

f.4.i

~

4 :.?

1015.,.

.Q:

i

.t GFgl.ESILTY S A?.n:

Siritar to SS-4 except horogeneous.

3 p

sS-5 29 16 14 b 109/4"

• k.,

~

1

'/N' :

.W,.

1010..

.(,.> CRAV7LI E SILTY SAh3 W SAN 0Y SILT: Sand is sostly fine,

' PE'

'"D'

'"d' i t

'"S"l * ' 9 '

• L"h **

'L

l** " "'

$$-6 5-55-12 18 8

?

- 25 V *'

stratifieJ, mica flakes, black and white inclusion h.*.-'

which appears to be weathered cobble piece, olive.

N (sm-ML).

y.'

~

>1

~

SS-7 16-139 12 9

-.*g 3;.9.:

e..

9 sawller black and white inclusion and sun. size 1-3/8". '

~ 30

1. ]

~

i,('d.

='.Q*i

.a G

t r

e4 (continued on page 2) 1000 -

I s*

• l 4 0 *a.eae=a*=* or he fese.ag 30* te ere.e h0fts F"

atOut Ps 4 j

e seae epeea ROh! FIRf. WATER TANet l

Pr e

• Pe.. nome. Ioace of.e.es.,

Rowe, Ma s sachuse t t s I

o as c t-ca er.e-e= e..e

.a T ANKEF AMMIC ELECTRIC COMPAAY l

$ p s,e......e.

westborough, m e s.chuse t t s l

8 e s seue seeen seme e s

f 79617 8

Datt Nove+e r 30, 1979 Puost:r ha i

Past 1 ~or. 2 ~ Son.=e no 2

l T$

.a....

..*~.

s..

s]

i Y

I-

)

pqq;[gy kw Pa r. M n T"k (QCa { gQq,f*y, ty ati,mi Pla D% LED Bf c'sita r*rit t te;A soum no " 614 c E, s.

DATE ST*RTED_exw;; rr.J D79 INCUNt.f1ON_v. tl.kai LOGGED BY. 7. o.Je thruGEL GROUND EL l0 H.0 f t DarE COW ETED 9du.r 4JUL. BEAFuNGj.y_ag[L,,b).,_, CHECKED BYat mmer1 TOTAL DEPTH _ ewe

~

EL DEPIM S a u {d

,(,,,, R 3 g,,

f eet -

eLoos era age ADv&NCE OF f*

SOIL aho ROCK DESCRIPTIONS no era s-SOminG

d it it m

m o

[

CRAVELLY, SILTY $AND: %30 % fines, widely graded, sul-Advanced h=

~

88*I 5-11-1,,

le 16 casing to S.S rounded to angular grains, man. sise 3/4", mica flakes...

I ft depth.

upper sortion contains roots, tan ($P).

lj Probable go 39..

bout /er fr e g

2.5' to 5.2'.

ii.y i'l-

[p '.. '

[.

'.h*.'

55-2Aa

'Ibp 5* and sottom 2* - SILTY SAND + s20s fines. sand I" #* * " "

• II" SS-2 18 18 12

"1-3/8", ed.:a flakes, olive-broerg (SP.I.

M grains sax. size

/ J.*

55 2B: Middle S" = MOTITID $!LTY FINE SMD TO $ANDY SILTr.

~'

" i.*h, Little mediu:a sar.d. occasional coarse sand to f ane s

I~

) *.t.

1025~~

gt gravet, mica flakes, olive-brown, (SP.*.L).

$ ~3A Ttp $* = SILTT SAND: Siedlar to 55-2A, %10% fines, SS-3 11 le 13

__ lo g 3, c,e,...,

.ottied,ppe.rance.

'q(; sS-38: Sotton 0*

• MOTT110 $ILTY FINE $AND TO SANDY SILT l-7.*;'

plasticity, sica flakes, olive-brwn. (SP-cl.

'*hO occasional piece of coarse to ewdaurs sand. slaght

'I,*E Os.l"-

1020 f,'

..T

$!LTY FINE SAN 3 TO S ANDY SILT: Occasional piece of fine p

I" SS-4 17 18 12

+-

--- 15 M*d

~

45

f..:

}g.b;.".

y.-

1015.-

I.tf i,..

GRAVELLY, SILTY SAND M S ANDY SILT: Subr>unded to angular U

E J.

' ' ' ' ' - ' " * '. sine t-3/e,.ica flakes, no.istratifi.d.

ss-s 28-44 le 12 g,

organic odor, olive, ($=-E).

'- 20

[*[*k.

l l

, ?.;*-

hk,,-

1010 --

'!.Y..

M ;,s I._

l Mf an, CRAVT:1Y. S ILTY $ AND TO $ ANDY $ !LT t $191Iar to $$-I.

MaA.

N,;,g;s P

ss-6

'I 43 18 12 size 1",

enttled arFea rance, rio organic odor.

25 g g

['

~

?;i *.,-

, ' = '

k*

S*g'.i

~

E

~

1005 - -

.' f.4.'

<3,

J,i".*..i CRAVELLY, Sit /rY SAND M $ANDY SILT: Siedlar to SS-6.

55-7 49 18 11

.*.9

_ 30 g

3,

g ego

~

l$1

-.. a2

.p-(continued on page 2) 1000 * -

.t.......s.

. _.,,0 poht FtpE WA*tR tAvic

.o,,,

e e.aa e,

.p..,

flois e PL ssaehuset ts e

Pg a.

p..n gen.e

.,a.,

ci atc

• L esa er

.ei. e..

4 TANKEE A10MIC EllCTRIC CC9WY l".

6

(' - s,...e.....

Westborough. Massachusetts I

3 iss,.............

f 04,t _Noveirt>e r 30, 1979 pegg,,, 19617 PAGE_

I 0F.

I to*ihG 40 I

u l

4.-............_.......

r

3 pctry u. Fire v..c Tad LOCt. TION _se e_ta:AhErCouED By Culta erititr.g ca 8(Pffd', t.O _. fun _t __

D4r as CME 5'tC O._0c_t2.-r.),.1979 INCUNATiOPL yenica!

LOC-Q BY T. o. r.11.r,51 Gh%NO EL _10 31.0 f t

_pq1_a ptisgie CHECKED BYghtgr.rL TOTAL DEPfH__agt_

CME CCo.ETE3_qc-a,i A_)m_ bet-NN",

a O p f,e !

SA"PLE mmp g

m viet -

stoes Ptn arc ADvsNCE Or Zg SOIL a'N D ROCn OESCRIPitONS EL 8.o esa e' 80RIN G

d te fr a

m

. - - - _ _ c**'l**2d.'J** Eage 11

(.

m.,

1000 --

l;l[

"1 7.a:?

r (f.

C hr.T tLY, stLTv SANn m sANny sit.T

$1milar to 55-6, maa.

8

3/

ss-a 17-le 9

_ 33

?l.t.',

M::

.? t

?.

.u

".'.*g.

99 %

!Y iff t,' Cuvrt t.Y, sit.tv sA;;u m s Asov str.T: similar to ss-6, more.

f*"* ***11 sones of black fine to coarse sand, (s4.

ss-9 13 le 9

~ 40 L

le

• U

, ~.y' 3

9M.

?}

7.5 m

~

Probable cobble ?/ O CFN.TLLY; stLTY SAN 3 m SANDY SILT similar to ss-9, man.

f ran 4 3.5

• to

(. *,

site 1/2", 1/4" thick layer of rediura. fine sand near -

- 45 g

g 44.5'.

bottom of sample.

6 46 Sotton Depth 46.2 ft D

1979 gundwater observation well installed on October 4 9g g,,

Installatton Dat_a, Depth to Botty of Pervious section - 43.2 f t Depth to Top of Pervion Section - 33.s f t

~ IO Depth to Top of sand Backfitt Around Pervious -

section - 29.1 ft Grout used to back f L11 around rise r pipe.

~

Crod a te r P.asurerent.g Date Depth to Ground.ater, ft

~

Octc,ber 9, 1979 3.9 October 10, 1979

3. s

~

October 11, 1979 3.6 Oc tobe r 2 3, 1979 4.3

~

~

~

i

~

l e.

twaae M* se ea hott 5 swE rgpg we.TE R TANK etc s es e e.e ee o.ie m...-

e

.-p=

nowe, stessachusetts ra m p.noe. se.ca of siw Y AnKEE Atomic ELECTRIC CDMPANY o

stC-t.=f*.8.

e* t..***a West. borough, Massachusetts 6 y............

g 796t2

,,,, no.m 30, 19n,eomt o s i. s e........

e..

east

_L ___o, 2

so.o no 3

s

_q),a.......,..~....-

'l 4

ws**r,Tel LOC ATION " tou ton '1" 0%tED BY Cdit o c rit t u.g~co."" BCF M NO 5

Piar.t f,e t e 6

F '3J OT J. fir e eam_ INCUN1.TICN a.st.!c41. _._ LOGGD BY A pu e11er. c L GROUNO EL,, log Lgt,,_,_

r

' * " ~

C 2rE S r!.i< TID _w.

~ -

01TE CCw'.ETED ocer 4 1979 BEARNG Not arpitabla CHECKED BYL Dale m rg. cEr ToitL CEPTH 53.1 ft s

I ' '# M s

EL D(PfH REwa%S ON u

=

itPf -

stoet eta arc AOv4NCE OF Zg 50tL AND ROCK OESCmiPTIONS no Pt e s' 80miaeG ge

~

dwanced W cas-SS-1Ai Top 5"

• SILTY SMD: %20% fines, widely geaded, sub-55 1 6-7-21 18 10 rounded to subangular grains, trace gravel, mica flaten.

Ang to 5.0 ft b

depth without uper 2* contains roots and topsoil, brt: pen. (Sad -

M drilling fluid.

/

probably fill.

pecoved casing

/

55-13: nottos 5* - GRAVED Y. SILTY SA.':D

% 204 fines, widely and retrieved 7..,

graded, subrounded to subangulas grains san. sire 1*.

g sapple C5-1 fromh.!:

pica flakes, orange-brown to 6f ack. ($M). prot; ably fill inside of casing},*'

CS-1: CPAVEtt.Y 51LTY SAND: Simher to SS-18, mu. site 2*,.

1010 *

~"""

stratification presect, occasional J/4* to 1/2* thick Depth to water to mediism sand.

...a.

5 ineenholewas[,,,

layers of fine gray sane and coarse 55-2 12-8 7 16 13 CPAVELLY, StLTY 5AYO si ilar to ts-la, saa, site 1 1/6*.

4*2 ft*

Advanced HW Cas- *!.

{

g rust and blatt colored zones - probabiy natur al soll.

3 d.

?.I f.*,Y}

vanced using 3-3/4" roller 1025 --

bit and Pevert NU l~

drilling fluid fiI to stabilire

[.;-

Ma Coarse to fine grained, %5% fines, widely graded, s F hola.

~ 10 c,*

rounded to subanquier grains, occasional fiae gravel

~

55-3 6-12-13 18 11 piece, nonstratified,. stica flakes. brwn with soee y

7,;*,*

blad fine sand sonas, (Sw',

+--

~

?.*.*

1020-4-

55-4 D 136/6*

6 4

• - SILTi SANQ Sand !p coarse to fine graiced. widely graded.

~

, ' *f.

stabroundad te geanquiar grains ruch sdca flakes.

trace of clef. brwn.

(5").

Probableboulderj[*.-

- 15 from 15.0* to 48.9' y,

s

..s

.g.;

s

. n.

r*

1015

~

f

~

(ines, widely graded, subroan*cd tn GF1~.TLLY $ND.%10%

~

$5-5 76-101-le 14 ang41aIgra 8ns, etc. size 1-3/8*, uppe r 2* is black t,2rh f r paented gravel piece, intensely strati fied by color,--

- 20 79 sica flakes, pradominantly Orom. (5'4.

/,\\.f'.

r.'

h"Q*

Probable cut,ble

• 'i.

from 23.5' to 1010-~

24.5'.

{..

55-6s Trp 4* - SANDY SILT AND SILTY SuD 1.A*IMel Occasion,

-*R.

al pece of coarse to fine sami, mica flakes. trace of f at-54 cl.y. ou vv.

' mottom 6* - Sir /la r to top 4* but contains gravel to' P

$$-6 31 18 10

" p=,2 SS-6:

- 25 1-3/89 alive.

y 48 l'd.'

,M*.*

..y.

iff li.** '

1005 i

• h,$

s'.

CFAYELLY SILTY S AND_ TO S ANDY SILT: Sand is sw>stly f a.ne.

u

- 30

,a widely graded, subrounded to subangular g rains, sua.

f */;.

size 1/2", nonstratified, mica flakes, olive, (5 -- P..J.,

N[.'*,

43 18 4

SS-7 i

h y Bottom c f Boring 32.1 f t 1000 -~

soring was back filled with g rout.

~

35

_,_T_

s_..~............_s....

e***********'**

(1) Groundwater seasurement taken itowe. Massachusetts in open hole on Octobe r 4, 197' YANUE ATO-C Et t L*TRIC CD*MY pr e Po..*e *e. tegen of e=#a.,

a t C

• Lag'* e8 ***e'* **s e**' e a two days af ter coepn Von of Westboroup.. I'ws smachueetts y

• Ge e a.es**

drilling.

. j 3,. o e

is. sei...

82=1* N "72-

' c5 - Casing sa vie 1

sc$e, ee0 4

cact_ 1

,or

/3

~

g

()..........,,..,......,.

e LOCATION ** Location pie.i ogettfo gy Cu114 or Illr1 Co-BCa*4 P40 _. 5 S

P f*O.T CI._f.Je t.f ait.tf e* r _lar k _

th'hf.0 f t Octet *r t o l._ INCUNATICN verM eal LOGGEO BY T 0 8'll',r, Car.. GROUND EL C.:.*E Sia.MI3 c.irt CC # a.ETED y eter 11 1989 BEtX43 hot er{icable (Hf(W(h OYK. IMIe[er9, Cr I _ TOTAL OfFTH

61. 7 f t IA" M

]'

(L OterM mfuaans ON y

t est -

e oes eta alc ADVANCE Of Z*

SOtt AND ROCK OE SCAaP f TONS

.o ete s-soamo ft ft b

b N

I9

• b.*,.1.r g r..n s....... 1,.ic. '*., e s.,en. r.u, -

55-1 5-1g-2 3 18 12 to n

,d.anced.

nonstratified, roots nea r top, brown wit.h some rust and g

9, g

black colored sones, (SW-SM),

depth.

v i

i Icec.I' f

d *'*

88-2A8 top 3"

• CMVELLY $AND: Sand is czaarse to fine

$$.2 23 18 10 f,*;

grained, %54 fanes, widely graded, subrounded to angular grains, man, size 3/4*, sica flakes, brown, (sw).

(

38 Ilote advanced TM.4

• • .1 55-28: Bot tom 7" s-CMVE f1Y, SILTY SAND: %204 f aces, widely using 3-3/4' roller bit and

, ; =.

graded, subrounded to angular grasps, man. site 1*,

~

.g I

nevert dritt-

.W sottled, stratified by color, rust and tan. ($M).

hp 6* - _MVELLY SILTY SAND: Similar to $$-29, man.

ing fluid to

, SS-3A:

C stahllite hole. g sine 1-3/8*,1* thick laye r of clean sand near bottom.

g

$5-38: Bottom 5" - POTTLED S TLTY FINE SAND AND $ ANDY $ILT:,

Probable cobble im occasional coarser-grained particle to 1-3/8*, saca

[',

between SS-2 f *6 flakes, olive-brown to brwn

($M-E).

1025 f

• U *I ' _

$$-4 20-21 18 13 between $$~3

'h..

brown.

[ 3 and $$-4.

3;.'.

SS-5A Top 8" - CRAVLLt.Y S AND: Sand is coarse to fine l

K.'

~

I

~

grained, %56 f anes, widely graded, subrounded to angular,,_

- 10 l *. f,"4 grains, stea flakes, olive, (Sw).

$$-58: Sot ton 10* - CRAv!LLY, SANDY SILT: %30 % sand - sostly,.

l fine-grained, man. same 1-3/8*, rust colored laminations.

inclusions of black sitty fine sand, pica flakes,

~

1020--

55-6 sS-6: CMv EttY, sA,0Y sitT:

Si. n ar to ss.58, no biacu 29 18 10 5,, sandy inclusions, nonstratified, olive.

--15

\\

D

1. 8D ss-7 33 18 6

l 76 I

10 L S--

SA

51Ma r to SS-P olive.

15-8 43-160 12 to L

~ 20 Y

)*][1 1013h' Q* 'J SS-9: Top 8* - GRAVEt1Y,_ SILT,Y. SAND 10 S ANDY SILT: Sand is I

+

p

,.,7

• m>stly fine-granned, subrounded to angular graina, mas.

55-g 39-113-18 12 t *.h, size 1-3/8", sica flakes, olive, ($M-E).

at y

SS-9: Sotton 4* - SAND Top portion is orange gravelty

.,;b coarse to fine sand and bottom portion is olive swdium-.,_

3g I

7.**'

fine sand with little gravel. (SW),

g

.M.

,1f.v toos-ci.

,, :,a,. q$5-10A W p 8" - SAND: Coarse to fine-grained, clean, widely graded, subrounded to angular grains, nonstratified,

~

• • J*'

mica flakes, olive. (SM.

SS-10 26 18 12

. b.

Te,

55-108: Botton 4* - SILTY FINf* SAND: taminae of sandy sit t.,_

- 30 38 I'6 uniform, occasional piece of coa rse-sedlun sand, sica flakes, olive, ($M).

'. a. -

s

~

Q*.'

's...

.m tnon

~,

(continued on page 2)

Y w

-4.

sweet et s s'

• 64 0is n4==,,

tehe 30* ee ers..

esorts IENE FIPE WATER TANK e aes.e seese o mp,

Rowe, Ma ssa ch use t t s rie P.a.e,ehen seagen e# usw,

YANKEE AB.*IC ELECTMIC COMPANY

~

n

• tC Leag's of ee*e's ene

.a weetoocou#, m.uau, tt.

5 y c,e......

S n se

.e Nveeer 30, 1979 part

,,g,g ;, na 79 m j"

PAGE 1 oF 2 gos.. g esO S

emr,e ses >.e e Wse e e % esa -

=$.

\\

+

se - e a.

e j

LOCAflONS-- 8"*' t" 't" 0.M LFD Err Caiti D'ill'ai Ca-M *.G to _5_.

he M r* m u T^~

• P l e *.t Da t e ps;gjgg y CATE 5rAaTED or*cb-r leu t9.]f_ INCUNAflON vereteat LOGCEOBY T. o. ee1je % cti Gr<ou=O EL sio3 3.o f.1 DATE CownETED_os3@ar_ lum BEARNGJ91_nr11u0e_ CHfCrF0 BY u,Je.d n_ cri TOTAL DEPTH _61.2 f-L sauPLE mtuanas ON SOst AND ROCu DESCnipfiONS EL DEPTH Ytag -

stoes et=

atc A0vap.ct or jg m2 et.*

eoains

s ft it se w

u (continued frore page 11 2000 -

---

to. g

'&e CF A',TLLY S tt1Y, SAND iu S AN DY S ILTt Sand is sostly fine-M.*

]$*

'"'d*"^d'd**'"i"''"''''''''''''-

l' 7

,g

='" ""

• • "c'"n'd L go3j3 rmbeble coss1es and g;X

}

.*f*,

boulde rs

?

t from 35.2' to a;i 41.S*.

'*/.*.-

~

• i*;"4 995.--

r... "

n -i f *(

- 40 i.6,* -

1

f. '.

CPATLLY $1LTY S AO TO S ANDY $ tt.Ts Similar t015-11. mat.

f

.,?,,it 55-12 21 34-18 9

size 1*.

990--

L.s 1

.s<

~

• iF b

- 45 I

• • "'*~9

paterial up to f ane gravel, high dry strength, sicw to 98k 55-11 8-10-19 18 13

~

rapid dilatec y, ovak plastic thread, slight plasticity..

1 olive. ( ML-OL).

poTTI.!D CIAYTY S!!.T AND SILTY CIAY: Sletter to 55-13.

- 53 1

~

85-14 12 18 10

~

h 31 980--

YW..

1 ois.

,4

• i.:,

E*N.

CPMTLLY $!LTY SAND to SANDY STLTi $lsitar to 55-11, hard _

~'S

b

~

1 5$-15 69 18 14

.'f, t.

h 71 y

,'.4

?A*,

Q',.1 975 --

l*

~

9.t'f.;.

~

g

- 60 WA Au SANDY S1t.t SimH ar to 55-11.

U.[i;,

! 19 10 8

Es-le 4:f:

~

l "

Bottee Depth - 61.7 ft 1

m toring was back filled =Lth grout.

gyp 1

45 e,% 30' ee e e

=cits maht FInt WA;Y.a TAVK escu es e.s e.e.o.is o,...

e es e

=. -

nose. Massachusetts e e-eme*== le s e e8 emepe TANEIT. ATU=fC [LWTRIC CU*JNLVY et e. to.co er w.

es etc liesttutouef. M.tssachusetts h

1 o

[

{

• 4e oeee es*ee O

9 9

• Se

• eees. seepte 79617 Datt _Mn_verder 10 19 79 pegg ng 9

9*GL _3 or 2

ponsor. =0

]

g....e.... _ o...........