ML20050E216

Geology & Seismology:Yankee Rowe Nuclear Power Plant

ML20050E216
Person / Time
Site:	Yankee Rowe
Issue date:	01/29/1979
From:	WESTON GEOPHYSICAL CORP.
To:
Shared Package
ML20050E211	List: ML20050E210 ML20050E214 ML20050E216 ML20050E219
References
NUDOCS 8204130112
Download: ML20050E216 (19)

Text

_ _ _ _ _ _ _ _ _ _ _ _ _ _

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Pv GEOLOGY AND SEISMOLOGY YANKEE ROWE NUCLEAR POWER PLANT prepared for YANKEE ATOMIC ELECTRIC COMPANY January 29, 1979 aQq..

if 'I Weston Geophysical CORPOR ATION E

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APPENDIX A BORING LOGS 1

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PROJECT va*=" a'ow.c e t eCtasC SITE aoat BORING NO.

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7m COMPLETED

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LOCATION n e,os e e sam e INCLINATION vtaf' cal BE ARING CHECK ED BY 3/*2f CASING l.D. " *.r CORE StZE

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vot=tiricario s enow oniit action aun cort ~m "a 5^"*""..=natu o atuu.=uw seisw< cas.=a a=O caoutro s, i=

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Seismic line 2, Sta. 3+80 GROUND ELEV.

LOCATION JD 350 MACKIN EQu!PMENT usED CONTRACTOR LOGGED BY R. Gerber CHK'OBY SCALE' S AMPLE COMMENTS STRATA TYPE DE PTH CHANGE AN0 RA E soll AND ROCK DESCRIPTION (include excavation ef fort )

F ET N,

top 6" dark brown; bottom 18" olivo brown; similar gradation as 2'-6';

A-and B-horizons

=

o friable structure; most tree roots in this stratum E

d 2

g glacial lodgment till: dark yellowish is brown and mottled; sand-silt matrix E

u.s > W w/ lenses of silty sand; 10% grave' moderately easy and cobbles up to 12"; very faint digging; most cob-

• ffy) occasional fissile structure that bles are schist or-o 7

crumbles to granular structure; fi rm gneiss; some w of.

5 r

x in-place; 20 to 40% fines; cobbles schist cobbles M

E$

4 -

Bulk and gravel subangular to subrounded;

1. 1

/

fines slightly plastic N

Lindist.

~

1. 1

\\

6

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,g, sow e./

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a.s >

slightly softer with perhaps sligh :ly 7' *' *4 higher water content or more fines o 4.5 pocketgenetrometermeasured3.5t tons /ft Cu; soil structure is somewhat massive but breaks into Bulk small angular fragments 8

1. 2

/

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BOULDERS GRoUNDWAT E R

SUMMARY

8"to l8"oiom. : No s Vol.

Cu.Ft.

DATE TIME' DEPTH FT.

10' over ls" Diam.: No.

s vol.

Cu. Ft.

10/20/78 26

>10' 10/23/78 96

>10' PLES -

TEST PIT PL AN BAG SAMPLES l

30

c m GROUNDWATER Nnno f/////) h V0

c.Y NOT ENCOUNTERED l X Sf TEST PIT No.1 4' T

TP 2 FIELD EXPLORATORY TEST PIT LOG SH 1 OF 2 10/19/78 10/23/78 R0WE D ATE : START YAEC R0WE SEP SITE FINISH PROJECT 10' 1425' TOTAL DEPTH (FT. )

Seismic line 3. Sta. 7+00 GROUND ELEV.

LOCATION CONTRACTOR MACKIN EQUIPMENT USED_ JD 350 R. Gerber egg.o BY k LOGGED BY SCALC COMMENTS HA GE AND soll AND Rock DESCRIPTION (include escovotion ef fort )

IN FEET Na

( FT.)

T top 4" dark grayish brown; bottom 26" strong brown over yellowish A-and B-horizons R

brown; silty sand (SM); 30% gravel and cobbles; relatively loose (friable); most of roots in this 3

stratum 2-t_

glacial lodgment till; olive and y

g g,,3 4, mottled; silty fine sand matrix moderate difficulty -

u,, gt (GM); less fines content than TP 1; in digging; some wx.

8

.. 3 y, 20%-30% gravel and cobbles up to 3C ";

schist cobbles z

/

very little plasticity in fines; Bulk fissile fabric looking like:

E 4-

/

JF 6_

se.3%>g y N'lgW"f' M h W= W's k.a w 1 g r.4 it.5 x 4 +m

%. io.s%

Bulk similar to 2h'-7h' except-8-

1. 4 slightly less dense and appears to

/ have slightly more fines content; (GM) 10' BOULDERS GRoUNDWAT E R

SUMMARY

8"tol8"Diom.: No

• Vol.

Cu. Ft DATE TIME

• DEPTH FT.

10' 10/20//8 23

>1U' DEPTH over l8"Diom.: No.

s vol Cu. Ft.

TEST PIT PL AN 2

BAG SAMPLES

[-- 33 9 aoat" GRoVNOWATER None

[V/////] h vot' 5

NoT ENCOUNTERED l X "7 8" TEST PIT No. 2 c.8.

4' T b

TP 3 FIELD EXPLORATORY TEST PIT LOG SH __1OF L YAEC R0WE SEP R0WE slTE D ATE: START FINISH PROJECT 1

8. T 1355' total DEPTH (rT.)

Seismic line 4, Sta. 9+00 GROUND ELEv.

L.oCATioN CONTRACTOR MACKIN EQUIPMENT UsED JD 350

, Geder CHK'OBY_ k LOGGED BY S AMPLE SCALE Co MMENTs STRATA TYPE DEPTH soll AND ROCK DESCRIPTION (include escovation ef for1 )

CHANGE AND RA E F ET N,

dark brown over yellowish brown; sand-silt (SM); relatively free of A-and B-Horizons -

=

iug, gravel and Cobbles; moderately fir n R

m u.,,,

• . a. es, e

Bulk

//

2

1. 6

/

/

J 2

mottled silty fine sand with small 3

gravel near bottom; dense; massive E[

(no fabric)

O E

85 9% >&' heavily mottled, poorly graded y

'U7*7,7 stiff sandy silt (ML) y glacial lodgment till similar to

=

D Dulk

/

/

TP 2 from 2h'-7h' except fabric is 4-

1. 5

//

not so well developed (GM) 6 similar to TP 2 from 7h'-10' bottom 4' Caving

/

8-

-::::.. a

~

1

~

~

GRoUNDWAT E R

SUMMARY

BOULDERS 8"tol8"Dions: No.

s vol.

Cu. FL DATE TIME

• DEPTH FT.

8.5' over :8*Diom.: Na sVol Cu. FL 10/19/78 0.25 Sb' seeps DEPTH O

10/19/78 0.25 8b' seeps JAR SAMPLES TEST PIT PL AN 20 10/20/78 17.5 5.5 SAG sAuPLEs I

GROUNDWATER Eh' Sb'

.$ f/////j Q vot.

10/23/78 96 5.0 18 C.Y Not ENCOUNTERED l En f *"

TEST PIT No.

3 5' T d

1 TP 4 FIELD EXPLORATORY TEST PIT LOG SH._1. OF 2 YAEC R0WE SEP R0WE 10/20/78 slTE D ATE : STA RT FINISH PROJECT Seismic line 4, Sta.15+50 1205' TOTAL DEPTH (rT.)10' GROUND ELEV.

LOCATION CONTRACTOR MACKIN EGulPMENT USED JD 350 eder LOGGED BY CHK'D BY _

S AMPLE COMMENTS STRATA TYPE DEPTH CHANGE AND RANGE soll AND ROCK DESCRIPTION IN (include encovation ef fort )

FEET Na (FT.)

dark brown over stong brown color; sand-silt (SM/ML) with very few A-and B-Horizons '

a gravel; most tree roots are in thi s R

'#desvaa, stratum t,%.rn /

m n. u.m

\\

no t m.iux heavily mottled; possible lacustri ne sediments incorporated in till; d

2-v.ar Bulk !!/ alt. k" thick strata of sandy clay

/

2 8A&8B

[

(ML over SM) waxed and micaceous silty fine sand g;

IS glacial lodgment till; olive; sanc z

silt matrix (SM/ML); 30%-40% grave l difficult digging -

y 4_

and cobbles; dense n.1%>5

/ g.,%v sa

% 10 %

4[

till; olive; widely-graded gravell y

Bulk sand (GW); few cobbles g7 6-on>A" till; olive; sandy silt matrix -

D F%Eua (ML/CL); more fines than 3' to 5';

• • • • 15 some faint fissile fabric nearly bottom 5, caving parallel to slope of ground; wruX some boulders up to 24"; not quite e

so dense as 3'-5' undis 8_

1. 2 i

10 r c^ ^

BOULDERS GROUNDWATER

SUMMARY

8"tol8"Dion: No.

s vol.

Cu. Ft.

DATE TIME' DEPTH FT.

10' l

over iS*Dion: No.

avol Cu.Ft.

10/20/78 0.25 1.5 seeps 10/20/78 0.25 5.0 seeps ES I

F 16. TEST PIT PL AN10/23/78 72 4.5 BAG SAMPLES 9 aoam GRoVNOWATER lY Y

[V/////]

@ vol.

35 c.Y NOT ENCOUNTERED l

$ [ E" TEST PIT No. 4 l

11' l

T-b

TP 5

• /

FIELD EXPLORATORY TEST PIT LOG SH J OFl 10/20/78 FINISH 10/23/78 PROJECT YAEC R0WE SEP slTE R0WE D ATE: START LOCATION 85' E. of Line 3, Sta.13+25 GROUND ELEV.

1230' TOTAL DEPTH (FT. )

9' MACKIN CONTRACTOR EQUIPMENT UsED LOGGED BY CHK'o BY _

SAMPLE COMMENTS STRATA TYPE DEPTH IN CHANGE AND RANGE soll AND ROCK DESCRIPTION (include encovation ef fort )

FEET Na (FT.)

T brown over yellowish brown with mottling below 1h'; sand-silt A-and B-Horizons y

(SM/ML) with only a few gravel and e

cobbles; slightly firm E

n.sy.>v 2-g

..sw cm P

W e it.ty, m

glacial lodgment till; yellowish E

/[/

8 B"Ik

/

brown; silty sand (GW-GM); 20%-30%

moderately difficult-O

1. 11 schisi digging below 2';

f gravel and cobbles; some wx

~

U.Nl.1, 4')ge boulders (up to cobbles; mottled lar 2

throughout E!

4-o.y, lodgment till; olive; mottling fa' ding with depth; silty sand (SH) ;

not quite so fine grained as bottc m same comments as Bulk of TP 1; some faint fissile fabric above

// running parallel to ground surface;

1. 10 very dense 6-silty gravelly sand (GW) to 9 same comments as except for two strata as noted; above

~

I saw>v tim h e A SW' +=8*h, g.r.b.* ado 8~

b L

Bulk

/

some limonite staining; 50% cobbles gg f/

and gravel; widely-graded lodgmen :

till 9

l

?

~

BOULDERS GRo UNDWAT E R

SUMMARY

8"tol8"Dions: No.

s vol.

Cu.Ft.

DATE TIME' DEPTH FT.

ove r l8"Diom.: No.

s vol.

Cu. Ft.

10/20/78 0.25 8.0' DEPTH TEST PIT PL AN 10/23/78 72 7.5' JAR SAMPLES BAG SAMPLES

[b 14 88omT M GRoONOWATER I

4' f/////)

h voL c.Y NoT ENCOUNTERED l

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