ML19309F680
| ML19309F680 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 04/24/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Rubenstein L Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19309F681 | List: |
| References | |
| NUDOCS 8004300341 | |
| Download: ML19309F680 (37) | |
Text
'
80 04300 l
400 Chestnut Street Tower II April 24, 1980 Director of Nuclear Reactor Regulation Attention:
Mr. L. S. Rubenstein, Acting Chief Light Water Reactors Branch No. 4 Division of Project Management U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Rubenstein:
In the Matter of the Application of
)
Docket Nos. 50-327 Tennessee Valley Authority
)
50-328 Enclosed are three copies of information requested by the Geosciences Branch Reviewer, J. Kane, during a meeting in Knoxville on January 25, 1980.
Mr. Kane's concerns were on the adequacy of piles supporting the Waste Packaging Area (WPA) and the Condensate Demine~ralizer Waste Evaporator Building (CDWEB) at Sequoyah Nuclear Plant.
Three copies of the enclosed information were hand-delivered to Mr. Kaiie on February 4, 1980.
The enclosure contains the following material.
1.
Prints of the WPA and CDWEB pile plans giving pile tip elevations, locations of all soil and rock exploration holes, and sectional view and details of the electrical conduit bank beneath the CDWEB (drawing 10SE45) 2.
Prints showing a vertical sectiou through the soil borings and their relationship to the buildings, adjacent piles, pile tip elevations, and refusal elevations (drawing 10SE46) 3.
Prints showing the location of the rock borings, vertical sections of the borings, and their relationship to the buildings, the drilled piles, and material encountered in the coring (drawing 822K2536-1, marked figure 1 and drawing 822K2536-2, marked figure 2) 4.
Prints of the geophysical logs for borings 1-RS and 3-RS through 6-RS (marked figures 3 through 7) i 6 ') 4 -
l
'6 9V 4
men w
l u1t.a.EePED4Btd 9P-EocA h-
Director of Nuclear Reactor Regulation April 24, 1980 S.
Copy of the geologic log for all rock borings (1-RV, 2-RV, and 1-RS through 6-RS) 6.
Copy of preliminary results of the soil investigation including tabulated results and graphic logs 7.
A descriptive text of the current foundation investigation, the data obtained, and a discussion of these data If you have any questions, please get in touch with D. L. Lambert at FTS 854-2581.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and_ Safety Enclosure (3) l l
L
DESCRIPTIVE TEXT OF ROCK BORINGS General Geology The Sequoyah Nuclear Plant site is underlain by complexly folded, interbedded 1hestones and shales of the Conasauga formation of Middle Cambrian Age. The strike of the strata averages N 30 Z,
which essentially parallel to the centerline of the reactors. The dip of the strata varies because of the numerous folds, but is normally steep, ranging from 50 SE to vertical.
Beneath the WPA and CDWE buildings the lhestor.as are medium gray, medium to fine grained, and constitute 95 percent of the rock. -The additional 5 percent consists of thin shale lenses or stringers with occasional beds of grey-green shale. Results.of unconfined compression test of two samples beneath these buildings give strengths of 11,300 psi and 13,500 psi for the limestone with interbedded shale stringers.
Shale beneath the plant indicated a compressive strength of 5,758 psi.
Drilling Program
~
One vertical and three angle core holes were drilled on the north and south sides of the WPA and CDNE buildings, respectively. Rese core holes are shown in plan on figure 1 and in section on figure 2.
~
WPA Area Vertical core hole 1-RV was drilled 5 feet from a pile whose tip elevation is 661.8. This hole encountered rock at e19vation 669.o and two filled cavities below to elevation 662.4. Inis hole may have encountered a ledge or step on the side of the excavation resulting in a higher top of rock tha.1 the pile tip. The cavities near the rock surface prevented geophysical logging of this hole.
Angle core hole 1-RS encountered top of rock at elevation 683 9 Since this hole started 10 feet north of the building it is reasonable te assume that the hole started in top of rock outside the excavation.
Both the core loss and cavity recorded on the drill log is depicted as a cavity (increase in counts) on the gamma gn=ma geophysical log (see figure 4).
'Ihe 2-foot shale zone at elevation 674.0 is represented by an increase in counts on the gamma ray log.
It should be noted that the signature of the gamma gamma sonde shows no signifi-cant change between the limestone and shale beds. This indicating that the relative density of these two materials are similar. All the ecre was recovered below elevation 677.5 indicating sound bearing rock.
i l
Core hole 3-RS is located 3.6 feet north of the building and angled to intersect the pile 1 foot below the pile tip elevation 683 5 Top of rock was encountered at elevation 683.3, thus indicating good correlation with the pile tip. The 0.6-foot core loss is indicated as a cavity on all four geophysical sondes (see figure 3). Except for the core loss, rock recovery was good indicating sound rock is supporting the pile.
Angle core hole 4-RS encountered top of rock at elevation 668.5 some 7 feet above the pile tip. Since the rock is dipping nearly vertical and cavities were reported and verified on the geophysical sondes (see figure 5), this pile was probably driven into weathered rock until refusal was met on sound rock at elevation 661.8.
CDWE Building Vertical core hole 2-RV was drilled 6.2 feet south of the building and encountered rock at elevation 6713 Three open or filled cavities were encountered in the upper 5 feet of rock, thus blocking the hole for the geophysical probes. Sound rock was encountered at elevation 666.6 which generally corresponds to the pile tip elevation of 667.8. This difference is due to the 7 feet between the hole and the pile and to the steep dip of the beddin(;.
Angle core hole 2-RS encountered top of rock at elevation 677.4 probablf outside the excavation for this building. ne filled cavities above elevation 667 7 probably represents the corner of the excavation. Good core recovery below the pile tip elevation 665 9 would represent sound bearing rock for the pile. This hole was blocked and could not be geophysically logged.
Angle core hole 5-RS encountered weathered rock outside the excavation.
This is represented by the open cavities and core loss reported and verified on the geophysical legs on figure 6.
The three core loss areas reported between elevations 668.4 and 662 7 are shown as' good rock on the geophysical logs. Bus the rock below the pile tip at elevation 671 9 would be all sound limestone and shale.
Angle core hole 6-RS encountered top of rock at elevation 673.4 after previous attempts hit the pile higher. This top of rock elevation would correspond to the adjacent pile tip elevations.
See figures 2 and 7 for details of this hole. All rock encountered in this hole was of exceptional quality which would support the pile.
Conclusion Based on all of the data gathered and the excellent correlation between the rock core and geophysical logging, we conclude the rock encountered beneath these buildings is of excellent quality limestone and shale. This rock would represent A scund bearing surface for the piles.
2
Georhysical Ingning The following geophysical logging techniques were conducted for the cooling tower exploration program at our Phipps Bend Nuclear Plant.
These techniques and descriptions are appropriate for the geophysical logging at Sequoyah Nuclear Plant.
Geophysical logging procedures used in the foundation i
exploration for cooling tower PB1 consisted of uphole sonics, gamma-gamma density, mechanical caliper, and natural gamma ray.
The following are brief descriptions of the procedures for producing each type of log.
Sonic Log
~
A sonic log shows travel times through rock which are
.. translated to velocities.
Based on 2 foot transmitter-
~
to-receiver spacing, the log shows extreme detail of I
the borehole wall. As the transmitter crosses discontinuitites such as clay seams, weathered partings, and fractures, velocitids change drastically or cause distortion of the compressional wave front. The i
thickness of the discontinuity can be measured by i
subtracting 2 scale feet from the distorted wave front, and the remainder is the thickness of the discontinuity.
If the distortion is 1 scale foot, the discontinuity is less than 1/8-inch ~ thick. This evaluation has been substantiated by recording sonic logs in core holes and comparing the results with known discontinuities found in core samples.
Gamma-Gamma Density Log I
As the gamma-gamma tool is drawn up the borehole, ganma rays are radiated from a radioactive source into
+
.the surrounding material.
Some rays are scattered and absorbed by collisions with electrons within the formation, whereas others return to a radiation detector.
The number of returned rays is proportional to the bulk density. Zones of weathered rock along the walls of a borehole show a higher number of counts than unweathered rock.
Caliper tog A summation caliper was used in the foundation evaluation.
With this probe all three caliper arms respond together to give a single trace of variations in borehole diameter.
Natural Gamma Ray Log e
The natural gamma tool responds to various radioactive materials that naturally occur in all rocks. The log is used for lithologic identification and stratigraphic correlation and is not sensitive to weathering.
9
- Explanation of Weathering Terms Used on Geologic Logs Cavity Individual Log Response:
A.
Sonic log shows a complite distortion of the first compressional wave arrival.
B.
Gamma-gamma log shows a substantial increase in counts per second from that obtained with sound rock.
C.
Caliper log shows the arms partially to fully extended in a distinct, isolated anomaly..
==
Description:==
Open void.
W.R. - Weathered Rock Individual Log Response:
A.
Sonic log shows a complete distortion of the first compressional wave arrival.
B.
Gamma-gamna log shows a moderate increase in counts per second from that obtained with sound rock.
C.
Caliper log shows the arms partially extended.
==
Description:==
Some chemical alteration and staining has occurred, although many rock cha'racteristics are still evident.
l
W.P. - Weathered Parting Individual Log Response:
A.
Sonic log shows that the first compressional wave is offset, and the following wave fronts are broken.
~
B.
If the sonic log is absent, the gamma-gamma log shows a slight to moderate increase'in counts per second from that obtained with sound rock and the caliper log shows the arms slightly extended.
C.
If the sonic and caliper logs are both absent, the gamma-gamna log shows a slight increase in counts per second from that obtained with sound rock. _
==
Description:==
Thin weathered seams (typically less than 1/8-inch thick) along bedding planes.
1 e
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TVA 4215A (WCP-8 71) pa'3 1 of 1 j
GEOLOGIC RECORD OF DRILL HOLE PROJECT SEQUOYAH N. P.
Hole Number Location Geologic Formation 1 - RV Waste Packaging Area 31.0' feet. Conasauna Elevation of Surface West from East corner of Bldg, Elevation of Water Loss 705.5
& 4.0' feet North of Bldg.
677.8 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 669.0 36.5 Elevation Bottom of Hole Size of Core Driller 655.7 Nx-Wiroline J. B. Payne Reco.nmended Foundation Grade Bottom of Weatnering Encountered Date Started Date Completed 656.2 1-10-80 1-11-80 Elevation Depth Thickness of From of Material Stratum Surface Stratum Die Descriotion OVERBURDEN Clav 705.5 0.0 27.7 Red No Recoverv 677.8 27.7
- 8. 8 Lost water.
ROCK DRILLING
~
~
Medium gray, medium to coarse grain Limestone 669.0 36.5
- 2. 7 450 +
limestons with calcite healed fractures and thin lenses of gray
(
-areen shale.
Cavity 666.3 39.2 1.6 Driller reported filled.
Limestone same as above. Weathered Limestone 664.7 40.8 1.8 vertical parting 664.7-664.4. Vertical bedd-ing.
Shale seam in center of core 664.4-662.9.
Cavity 662.9 42.6 0.5 Driller reported filled.
Limestone and shale as above with Limestone 662.4 43.1 6.7 vertical healed fractures and vertical beddin weathered 662.4-661.8.
Weathered partings 657.7 and 656.2.
BOTTOM OF HOLE 655.7 49.8 REMA R KS:One Rock sample was taken.
Sample:
- 1 669.0-668.4 Total Casing 36.7 Casing Stickup 0.4 Water test:
Elevation G.P.M.
P.5, L None Log;eo By Conlev Drinnen
a A
w.
- =
1 e
% ROCK HOLE NO.
1-RV CORE
% CORE
% EST.
4 EST.
ELEVATION OF PULLS PF.COVERY
% CAVITY IDSS~
LIMESTONE SHALE 669.0-668.4 100%
0%
0%
668.4-659.2 77.2%
22.'8%
0%
659.2-655.7 100%
0%
0%
1 I
s l
1 3,.,
l
t's 1 Of 2
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- TVA 4215A (WCP-8-71)
Pag 2 PROJECT SEQUOYAH N. P.
Hole Number Location
~
Geologic Formation 1 - RS Wasta Packaging Area 22.0' feet Conasauga E.evation of Surface West of East corner of Bldg.
Elevation of Water Loss 705.7
& 10.0'. Feet North of Bldg.
678.2 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 683.9 21.8 Elevation Bo' tom of Hole Size of Core Driller 653.4 Nx-Wireline J. B. Payne Recommended Foundation Grade Bottam of Weatnering Encountered Date Started Date Cornpleted 655.3 1-14-80 1-16-80 Angle 750 Elevation M*
fh3[knkEsY of Frorn of Material Stratum Surface Stratum Dip Description OVERBU,RDEN Clay 705.7 0.0 21.8 Red ROCK DRILLING See Medium gray, medium to fin.e grain..
Limestone 683.9 22.6 0.8 Remarks limestone with thin lenses of gray-green shale.
Scattered calcite healed fractures.
(-
' Core Loss 683.1 23.4 0.4 Medium to coarse grain Jimestone Limestone 682.7 23.8 4.5 with thin. lenses of gray-green shale. Scattered healed fractures.
Weathered vertical joint 682.3-681.7.
Weathered parting 679.3 Weathered joint 678.7-678.4 Cavity 678.2 28.5 0.7 Driller reported open.
Limes tone 677.5 29.2 3.4 Same as limestone above.
Gray-green shale.
Weathered 674.0-Shale 674.1 32.7 2.0 673.8.
Weathered parting 672.1.
Medium gray, medium grain limestone Limestone 672.1 34.8 12.3 with lenses of gray-green shale.
Weathered joint 671.9-671.5. Weath-ered parting 669.1.
Weathered joint 664.7-664.6.
REMARKS: Hole drilled on 75 angle unabic to determine degree of dip of' beds.
Total Casing 22.6 Water test:
Casing stickup -0.4 Elevation G.P.M.
P.S.I.
None Pile tip Elev. 668.5 Logg d av Conlev Drinnon
.e-l
' TVA 4215A (WCP 8 71)
Paga GEOLOGIC RECORD OF DRILL HOLE PROJECT SEOUOYAH
(
Hole Number Location Geologic Formation 1 - RS Cont.
Waste Packaging Area 22.0' feet Conasauga Elevation of Surface West of East corner of Bldg.
Elevation of Water Loss 705.7
& 10.0' feet North of Bldg.
678.2 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 683.9 21.8 Elevation Bottoni of Hole Size of Core Driller 653.4 Nx-Wireline J. B. Payne Recommended Foundation Grace Bottom of Weathering Encountered Date Started Date Completed 655.3 1-14-80 1-16-80 Angle 75 Elevation Depth Thickness of From of Material Stratum Surface Stratum Dio Descrir. tion Shale 659.8 47.5 2.2 Gray-green.
Medium gray, medium to coarse grain Limestone 657.6 49.8 4.2 limestone with lenses of gray-green shale. Weathered joint 655.3.
BOTTOM OF HOLE 653.4 54.1
.v C
REMAR KS:
Water test:
Elevation G.P.M.
P.S.I.
Logged By Conley Drinnon
, - ~
% ROCK HOLE NO. 1-RS CORE 4 CORE
% EST.
>% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY LOSS LIMESTONE SHALE 683.9-682.4 73.3%
0%
26.7%
682.4-682.2 100%
0%
0%
682.2-680.3 100%
0%
'0%
680.3-673.4 89.9%
10.1%
0%
673.4-670.6
'100%
0%
0%
670.6-664.9 100%
0%
0%
664.9-663.0 100%
0%
0%
'J 663.0-661.0 100%
0%
0%
661.0-656.7 100%
0%
0%
656.7-653.4 100%
0%
0%
>=
a
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e 9
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t 1
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i TVA 4215A (WCP-8-71)
- pag, 1 of 2 PROJECT SEOUOYAH N. P.
Hole Number Location Geologic Formation
'~
2 - RV C.D.W.E. Bldg. 39.0' West of Conasaiiga Elevation of Surface East.. corner of bldg.,5.2!
Elevation of Water LossDX 5 704.9 South of wall.
677.3,670.9,669.3,668.7,654.4 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 671.1 33.6 Elevation Bottom of Hole Size of Core Driller 649.1 Nx-Wireline J. B. Payne
[
Hecommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 1-19-80 1-21-80 i
Elevation Depth Thickness
)
of From of Material Stratum Surface Stratum Dio
- Description OVERBURDEN 1
Clay 704.9
- 0. 0 27.6 No Recovery 677.3 27.6 6.0 Lost wa.:er.
I
]
ROCK DE ILLING j
Medium gray, medium grain with u mas tone 671.3 33.6 0.4 varies scattered-<:alcite healed fractures, l
from side of cavity 671.2-670.9.
(.
0 750-90 l
Cavity 670.9 34.0 C. 7 Drillet: reported filled.
Samea$1mestoneabove.
Weathered l
Limestone 670.2 34.7 0.7 670.2-669.3.
i Cavity 669.3 35.6 0.1 Driller reported open.
i, Limestone 669.2 35.7 0.5 Medium gray, medium grain.
l Cavity 668.7 36.2 2.1 Driller reported filled.
Medium gray, medium to coarse grain Limestone 666.6 38,3 12.2 with scattered calcite healed fractures, and lenses of gray-green shale. Weathered parting 666.2-665. 3l Cavity 654.4 50.5 0.1 Driller reported open.
Medium gray, coarse grain witn Limestone 654.3 50.6 1.8 calcite healed fractures, i
REMAR KS:
Total casing 33.7.
i
~
Water test:
Ele <ation G.P.M.
P.S.I.
Logged By Conley Drinnon 4
s u.--.
a an
,e--
y
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TVA 4215A (WCP-8-71)
Page 2 of 2 PROJECT SEQUOYAH N. P.
i Hole Number Location Geologic Formation 2 - RV C.D.W.E. Bldg. 39.0' West of Conasauga i
Elevation of Surf ace East corner of b1dg. 6.2' Elevation of Water Loss 03Z.3.
704.9 South of wall.
677.3,670.9,669.3,668.7,654.5,t;-
Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 671.3 33.6 Elevation Bottom of Hole Size of Core
,649.3 Nx-Wireline Driller J. B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 1-19-80 1-21-80 Elevation Depth Thickness of From of Material Stratum Surface Stratum Dip Description Cavity-652.5 52.4 0.4 Driller reported open.
Z Grout 652.1 52.8 0.3 Gray.
l Limestone 651.8 53.1 2.5 Same as limestone above.
BOTTOM OF HOLE 649.3 55.6 1
i i
r 4
l i
i l
i REMAR KS:
I Water test:
Elevation G.P.M.
P.S.I.
Gnley Drinnon Logged By i
i
%'RCCK HOLE NO.
2-RV CORE
% CORE
%'EST.
% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY IDSS LIMES'1TNE
". HALE 671.3-669_o 6s ?Y 34.8%
0%
669.0-666.5 16%
84%
0%
3 666.5-663.6 100%
0%
0%
663.6-658.6 100%
0%
0%
658.6-655.4 100%
0%
0%
655.4-649.3 91.8%
8.2%
0%
i s
O 4
m 4
e I
f i
i I
i
TVA 4215A (WCP-8-71)
Page 1 Of 1 PROJECT SEOUOYAH N. P.
Hole Number Location Geologic Formation 2 - RS C.D.W.E. Bldg. 35. 9' West of Conasauga Elevation of Surface East corner of Bldg. and Elevation of Water Loss 704.9 10.8' South of wall.
691.9 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 677.'*
27.5 Elevat#on Bottom of Hole Size of Cors Driller 650.6 Nx-Wireline J. B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 8
1-13-80 1-19-80 0
Angle 75 Elevation t$
Th1ckt s
of From of t
Material Stratum Surface Stratum Dip Description OVERBURDEN Clay 704.9 0.0 13.0 Red No Recovery 691.9 13.5 14.5 Lost water.
ROCK DRILLING Hedium gray, medium to coarse grain j Limestone 677.4 28.5 3.1 witideattered calcite healed fracturc Weathered vertical joint 677.4-(
676.5.
Cavity 674.3 31.7 5.3 Driller reported filled.
Limestone 669.0 37.2 0.4 Weathered.
Cavity 668.6 37.6 0.9 Driller reported filled.
Medium gray, medium to coarse grain Limestone 667.7 38.5 10.6 with calcite healed fractures and lenses of gray-green shale.
Dip of rock near vertical. Weathered parting 667.7-667.2.
Shale 657.1 49.5
- 2.2 Gray-green, soft.
Hedium gray, coarse grain.
Weather-:
Limestone 654.9 51.8 4.3 ed 300 joint 652.0.
f BOTTOM OF HOLE 650.6 56.2 l
R EMAR KS: Total casing 28.6.
Water test:
Eleva bon G.P.M.
P.S.I.
Pil2 tip
(
El. 665.9 Logged By Conlev E. Dri M0n
% ROCK HOLE NO.
2-RS CORE
% CORE
% EST.
% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY LOSS LIMESTONE SHALE 677.4-676.9 100%
0%
0%
676.9-669.9 79.5%
20.5%
0%
669.9-665.3 60.9%
39.1%
0%
665.3-660.3 100%
0%
0%
1 660.3-655.4 100%
0%
0%
655.4-653.9 100%
0%
0%
a 653.9-650.6 100%
0%
0%
0 1
4 w
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4
, ' ' TVA 4215A (WCP-8-71) l of 2 GEOLOGIC RECORD OF DRILL HOLE PROJECT SEQUOYAH N. P.
Hole Number Location Geologic Formation 3 - RS Waste Package Area 15.0' Feet Conasauga Elevation of Surf ace ilest of east corner of Bldg.
Elevation of Water Loss 705.4 and 3.6' feet North of Bldg.
Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 683.3 22.1 Elevation Bottom of Ho:3 Size of Core Drilier 668.4 Nx-Wireline J. B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 674.0 1-26-80 1-26-80 81" Angle Elevation M"
NbN of From of Material Stratum Surface Stratum Dio Description OVERBURDEN Clay and Gravel 705.4 0.0 5.0 Red Sand 700.4
- 5. 0 1.0 Silty "1 ay 699.4 6.0 16.1 Red ROCK DRILLING
(
Limestone 683.3 22.4 0.1 Weathered broken and around.
Limestone 683.2 22.5
- 0. 3 Same as above.
Medium gray, medium grain with Limestone 682.9 22.8 1.9 500 +
scattered thin lenses of gray-green shales.
Weathered parting 683.0.
Core loss 681.0-680.4 Weathered Limestone 681.0 24.7
- 1. 3 fractures limestone 680.4-680.3.
Gray-green shale 680. 3-679. 7. Weath--
ered parting 680.0.
Medium gray, medium grain with Limestone 679.7 26.0 3.9 scattered thin shale seams.
Small calcite healed fractures 677.4, 676.6. 676.0.
Limestone 675.8 30.0 1.6 Same as limestone above.
Limestone, medium gray, medium graid Limestone & Shale 674.2 31.6
- 4. 7 60 +
with scattered calcite healed l
REMAR KS: Total casing 22.6 Casing stickup 0.2 Water test:
Etevation G.P.M.
P.S.I.
(.
Pile tip-Elev.
683.5 Logged By Conley Drinnon
I P
2 of 2
- TV A 4215A (WCP 8 71)
Pag)
GEOLOGIC RECORD OF DRILL HOLE PROJECT SEOUOYAH N. P.
Hole Number Location Geologic Formation 3 - RS Waste Package Area 17.0' feet Conasauna Elevation of Surf ace West of east corner of b1dg.
Elevation of Water Loss 705.4 and 3.6' feet north of bida.
Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 683.3 22.1 Elevation Bottom of Hole Size of Core Driller 668.4 Nx-Wireline J. B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 674.0 1-26-80 1-26-80 81* Angle Elevation kb"
[hYkneEs' of From of Material Stratum Surface Stratum Dio Description fractures. Weathered 30u joint Limestone and Shale 574. 0.
Limestone. add shale 672.2-571.2.
Limestone 672.1-669.5.
Limestone with approximate 50% shale f.4 men ton e & nhnle 669.5 36.3 1.1 569.5-669.0.
Limestone 669.0-668.4.
BOTTOM OF HOLE 668.4 37.5 f,
R EMAR KS:
Watcr tcst:
E!evation G.P.M.
P.S.I.
Logged By Conley Drinnon
b
'5 i
. dp *sfy 0
\\l/
b,
/////
f' l'
+#+-
,M eE E A<eA1,em TEST TARGET (MT-3) l.0 5 33 L2a C E3 E Ilt l!]"2.2 l,l E,
bhb
\\
1.8 I l.25 IA 1.6 l
MICROCOPY RESOLUTION TEST CHART d!f >' zzf' (,,
'*3;;fS 4
un
- t'
% ROCx HOLE NO.
3-RS CORE
% CORE
% EST.
% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY LOSS LIMESTONE SHALE 683.3-683.2 50%
sor inn?
683.2-682.9 100%
100%
682.9-681.0 100%
95%
5%
681.0-679.7 54%
46%
20%
80%
679.7-675.8 100%
80%
20%
675.8-674.2 100%
93%
7%
674.2-669.5 100%
93%'
7%
s 669.5-668.4 100%
- 92%
8%
m O
e l
l l
TVA 4215A (WCP-8-71)
Pag 3 1
<>f 2
GEOLOGIC RECORD OF DRILL HOLE l
PROJECT SEQUOYAH N. P.
Mole Number Location Geologic Formation 4 - RS Waste Package Area, 29.0' Conasauna Elevation of Surface feet West of East corner, 7.2' Elevation of Water Loss 705.7 feet Ydeth of Blde.
681.0 l
Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 668.5 37.2 Elevation Bottom of Hole Sire of Core Driller 645.2 Nx-Wireline J.
B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 1-29-80 1-31-80 81 Elevation Yh" k fckneW i
of From of Material Stratum Surface Stratum Dip Descriotion OVERBURDEN
)
Clay, Sand and Gravel 705.7 0.0
- 3. 0 Red Clay 702.7 3.0 34.2 Red ROCK DR[LLING Near Medium gray, medium-coarse grain.
Limestone 668.5 37.7
- 2. 2 vertical 0avity 667.4-667.3. driller report-ed filled.
Same as limestone above.
Cavity Limestonc 666.3 39.9 3.0 665.9-663.5. Driller reported open.
Limestone 663.3 42.9
- 0. 3 Same as limestone above.
Same as limestone above.
Cavity Limestone 663.0 43.2 3.0 662.8-662.5. Driller reported open.
Weathered partings 662.2, 661.5.
i Same as limestone above, with few-1 Limestone 660.0 46.3 5.8 thin lenses of gray-green shale.
Cavity 656.0-655.9. Driller report-ed'open.
Near Medium gray, medium-coarse grain j
Limestone 654.2 52.1 9.0 vertica:.with lenses of gray-green shale 654.2-648.8.
Cavity 648.8-648.7.
Driller reported open.
Limestone medium to coarse grain G48.7-646.5.. )
Cavity 646.5-646.1. Driller reported 1 REMAR KS:
Total Casing 38.1 Casing Stickup 0.7 l
Water test:
Elevation G.P.M.
P.S.I.
C Loggac By Conley Drinnon
TvA 421SA (WCP-8 71)
Pap 2 of-2 GEOLOGIC RECORD OF ORILL HOLE PROJECT SEQUOYAH N. P.
Hole Number Location Geologic Formation 4 - RS Waste Package Area, 29.0' g
Elevation of Surf ace feet West of East Corner 7.2 Elevation ofWater Loss 705.7 feet North of Bldg.
681.0 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 668.5 37.2 Elevation Bottom of Hole Size of Core Driller 645.2 Nx-Wireline J. B. Payne Ec'cmmended Foundation Grade Bottom of weathering Encountered Date Started Date Completed 1-29-80 1-31-80 81" Angie verticat Elevation Depth Thickness of From of Material Stratum Surface Stratum Dio Description open.
Grout 646.1-645.9. Limestone Limestone 654.2 52.1 9.0 same as above 645.9-645.2.
BOTTOM OF HOLE 645.2 61.2 C.
l l
J REMAR KS:
Water test:
Elevation G.P.M.
P.S.I.
Lognd By Conley Drinnon
4.
% ROCK HOLE NO. 4-RS CORE
% CORE
% EST.
% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY IDSS LIMESTONE SHALE 668.5-666e 3 95%
5%
100%
666.3-663.3 20%
80%
100%
663.3-663.0 100%
100%
663.0-660.0 87%
13%
100%
660.0-654.2 98%
2%
98%
'2%
654.2-645.2 95%
5%
90%
10%
t.
m e
1 4
e e
e O
I l
\\
l l
Page PROJECT. Sequoyah Nuclear Plant Hole Number Location Geologic Formation 5-RS CDWE building Conasauga Eievation of surface 15 7 feet west of SE corner Elevation of Water Loss 704.9 and 11.0 feet south of wall 698.8 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 678.5 26.4 Elevation Bottom of Hole Size of Core Driller 655.8 Nx-wireline J. B. Payne Recornmended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 1-31-80 1-31-80 Angle 72" angle verucal Elevation Depth Thickn,ess of From of Material Stratum Surface Stratum Dio Description j
OVERBUR)EN Clay 704.9 0.0 6.1 698.8 6.4 20 3 Lost water - No material recovered.
ROCK DRILLING Near Limestone 678.5 27.8 03 vertical Medium gray, medium grain, with lenses or weaT,nerea saale.
Limestone 678.2 28.1 0.7 Same as above.
l Limestone 677.5 28.8 2.9 Same as above. 677 5-676.9 Driller reported open cavity 676 9-676.1. Medium gray, medium grain limestone with very few thin lenses of green shale 676.1-674.6.
Limestone 674.6 31.9 1.8 Weathered 11
- tone and shale 674.6-674.5 Core
.,ss, possioly soft shale 674.5-672.8.
l REMAR KS:
All percentages of limestone and shale were based on actual rock recovered and not on core loss and cavities.
Water test: None Elevation G.P.M.
P.S.I.
Total feet casing 27.8
(
Casing sti &ap o.3 Legged Sv Conley Drinnen I
l
TVA 4215A (WCP-8-71)
Pagt - 2 of b GEOLOGIC RECORD OF DRILL HOLE PROJECT Sequoyah Nuclear Plant Hole Number Location Geologic Formation 5-RS CDNE building Conasauga EleVJtion of Surface 15 7 feet west Cf TE Corner Elevation of Water Loss 704.c and 11.0 feet soutn of wall 698.8 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 678.5 26.4 Elevation Gottom of Hole Siz: of Core Dritter 655.8 Nx-wireline J. B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed l-31-80 1-31-80 Angle 72~
kN iNOe Elevation of From of Material Stratum Surface Stratum Dio Description 672.8 33.8 o.3 Core loss, possibly soft shale.
672.5 34.1 0.5 Core loss, possibly soft shale.
672.0 34.6 o.8 Core loss, possibly soft shale 672.0-671 7 Weathered shale witn thin lenses of weathered limestone 671 7-671.2.
Approx.
Limestone 671.2 35.4 2.8 60o Medium gray. medium grain with thin lenses of shale.
Aptrox Limestone 668.4 38.4 1.5 60D Core loss 668.4-667.5.
Soft shale 667 5-667.3 Limestone 667 3-666 9 Apurox D
666.9 40.0 0.7 60 Core loss. Possibly soft shale'.
Apgrox Limestone 666.2 40 7 29 60 Medium gray, medium grain with lenses of shale.
Limestone 663 3 43.7 23 Core loss 663.3-662.7. Limestone medium gray, medium grain 662 7-661.0.
REMARKS:
1 l
Water test:
Elevation G.P.M.
P.S.I.
(
Logged By Conley Drinnon
TVA 4215A (WCP.S.71)
Pagt 3 of b PROJECT Secuovah Nuclear Plant Hole Number Location Geologic Formation' 5-RS CDh'E building Conasauga Elevation of Surface 15 7 feet west of SE corner Erevation of Water Loss 704.9 and 11.0 feet south of wall 698.8 Elevation Top of Bedrock Thickness of Overburden Elevation of Water Gained 678.5 26h Elevation Bottom of Hole Size of Core Dri!!er 655.8 Nx-wireline J. B. Payne Recommenced Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 1-31-80 1-31-80 Angle 72 Elevation t$
Yh kneh of From of Material Stratum Surface Stratum Dip Descriotion Limestone 661.0 46.2 3.8 Same as limestone above.
LLmestone 657.2 50.2 1.4 Same as limestone above.
Bottom of hole 655.8 51.6
.t REMAR KS:
Water test:
Elevation G.P.M.
P.S.I.
f s
Log;ed By Conley Drinnon
-r
Page 4 of 4
% ROCK CORE
% CORE
% ESTo
% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY IDSS LIMESTONE S!! ALE d
678.5 678.2 100I 704 90, 678.2-677.5 100%
70%
30%
677.5-67h.6 71%
29%
97%
3%
67h.6-672.8 5%
95%
60%
30%
672.8-672.5 100%
672.5-672.0 100%
672.0-671.2 25%
75%
30%
70%
^
671.2-668.4 1005 98%
2%
668.4-666.9 44%
56%
60%
30%
666.9-666.2 100%
666.2-663 3 100%
93%
7%
663 3-661.0 72%
28%.
80%
20%
661.0-657 2 100%
80%
20%
657.2-65f.8 100%
85%
15%
1
_. l I
i
1 I
TVA 4215A (WCP-8-71)
Paga 1 of 2 GEOLOGIC RECORD OF DRILL HOLE f
PROJECT Sequoyah Nuclear Plant Hole Number Location Geologic Formation 6-RS CDWE building Conasauga l
Etevation of surface 21 5 feet from SE corner and Elevation of Water Loss 705.0 12 9 feet from south wall None Elevation Top of Bedrock Thickness of Overt,urden Elevation of Water Gained 673.4 29.4 Elevation Bottom of Hole Size of Core Driller 657.7 Nx-wireline J. B. Payne Recommended Foundation Grade Bottom of Weathering Encountered Date Started Date Completed 2-1-80 2-1-80 Angle 67 Elevation hk" TNc'kNs of From of Material Stratum Surface Stratum Dip Description OVERBtRDEN Clay 705 0 0.0 18.4 Red Clay 686.6 20.0 13 2 Yellow, shaly ROCKIFTT T.TMG Limestone 673.4 34.3 1.6 50 i Medium gray, medium grain limestone
(
'~
with thin lenses of gray shale...
Weathered parting 673.1.
~
Limestone 671.8 36.1 3.6 Same as limtestone above. Weathered joint 671.2.
Weathered parting 671.1.
Core loss 670 9-67o.6.
Soft shale 670.6-o70.4.
Limestone 668.2 40.0 5.5 Same as limestone above.
Limestone 662.7 46.0 5.0 Same as above.
Soft shale 660.6-659 7 Bottom of hole 657.7 51.4 REMAR KS:
All percentages of limestone and shale were based on actual rock recovered and not on core loss and cavities.
Water test: None Elevation G.P.M.
P.S.I.
(-
Total casing 34.6 Casing stickup 0.2 Logged By Conley Drinn n l
Page 2 of 2
% RCCf4 CORE
% CORE
% EST.
% EST.
ELEVATION OF PULLS RECOVERY
% CAVITY LOSS LIMESTONE SHALE 4
d 673.4 671.8 loon c8'-
2, 671.S-668.2 925 8%
9c4 10%
668.2-662.7 loof 965 hv.
662.2-657 7 100%
875 135 I
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i SE'QUOYAH NUCLEAR PLANT CONDENSATE DEMINERALI7.ER UASTE EVAPORATOR BUILDING
SUMMARY
OF LABORATORY TEST DATA i Atterb. Limits Soil Nat. Grain-Size Analysis Liq. Plas;ic. Dry Void Elevation Symbol Moist. Gravel ' Sand Silt Clay "1n Limit Index Dens. Ratio % Sat. mm pcf Boring No. US-1, Surface El. 705.5 703.5-702.0 CII 28.9 102.2 3 15 23 59 13 41 96.4 .774 700.5-699.1 Cl! 43.4 108.2~. 0-11 18 71 1 52 82.0 1.117 697.4-696.1 CH 33.4 104.0 1 25 16 58 a3 34 91.0 .883 694.5-693.2 ML-MII 23.7 92.0 1 24 15 60 50 6 100.1 .703 691.5-689.7 CH 25.6 97.2 0 30 22 48-54 32 99.7 .728 66').4-637.8 CH 26.8 95.5 3 27 20 50 57 36 97.0 .773 686.4-684.7 S!t* 20.2 73.4 18 54 23 5 .0127 35 3 98.0 .760 1 Boring No. US-2, Surface El. 704.9 702.9-701.0 CH 27.6 92.4 1 18 21 60 57 35 94.3 .821 699.9-698.6 CH 28.6 92.4 3 19 19 59 58 34 92.8 .853 696.9-695.7 Cit '22.3 92.2 8 23 18 51 58 37 103.3 .667 692.0-690.8 CL 23.9 79.0 3 32 25 40 43 24 93.9 .835 689.9-687.7 CL-CH 24.7 96.8 3 28 23 46 51 31 100.6 .700 686.9-685.0 CL 24.1 95.0 0 29 25 46 44 24 '100.7 .693 683.9-681.9 CL 26.2 88.0 4 33 25 38 49 27 94.7 .824 680.9-679.4 Cil 29.5 88.9 1 28 23 48 54 34 89.7- .911 g 677.9-676.5 CH 33.5 92.8 2 1 25 12 1 52 57 36 86.0 .994 - j) 1 *Ueathered shale va L *. ?.24 d .- ;.1 m i
.o s t j TE!iliESSEE VALLEY AUTHORITY t .i i
- 'SIMGLETOM MATERIALS ENGINEERING LABORATORY
'i SOIL PROFILE.(SS, PA, HA, TP. BORING) Sheet - [ 1 of 2 l 4 Proj ect.SEQUOYAH N. P. Feature WASTE PACKAGING' ARE A Boring SS-l ' Station Range Surface El 705.6- [ JLS" Date Drilled I ' 8 0 ' ' T o 1 8 Prepared By Checked By, U I' SPT .L ...s i Depth El (.N ) W LL PI. X Remarks . -/ .. :j Q -~.'.-. 5. $:s:$.?$: 1"=5' .. e..: -:n .-- ~ ;.. a:i-::. .T.:- -:i.; ~ : ' " 2 * * ' -- -0 _705 ~~ y: =.x+. 27 7 44 26 -[ u ~. - I 1 14 3 31.7 66 3I 5 -700 .l2 28.0 6i 36 r U ~ ~ 15 29.6 68 38 }- }l - b ~ 1- -10 18 2 31.9 62 28 T -695 i ' 22 24.9 60' 33 i (ggg ~ . ~ 14 25.1 76 49 f.'. 7. ~ w.... 35
- , ;,s u..?c
-690 I .4
- ,...o.. '
- -
l7 u 30.l 57 34 .a q.; ;;. : i.- l8 25.7 59' 38
- li..,-C. CL?
. :....,- e-
- . c.. i.A.;-'.; _
-683 ' ?? 19 '23.6 63 39 -20 .CL-CH 19 / 23.'8 50 30 7 49.0 56 35 45 ~ -680 4 30'7 59 38 e ~ 8 26.4 [ L 0 -30 5 30.4 l -675 ~ ~ 52 32 l 3 33.2 - I l ?* E0 0 ~ ~ ~ ~4 5 '.I63 WEATHERED SH A' r l -35 2M I t
Sheet. 1 P roj e c t_SEO UOY AH N. P. Boring SS-1 2 O f.K SPT L t Depth El (?!) 0 W LL PI X Remarks 1 -35 58 7.9 NP NP. _ i, 1".=5' GP.Gu S REFUSAL - j -670 r N . c x. 1 ~ -40 ~ -665 i jl i -l I' -45 6 -l t ) 4 -5'o P-a .me 9 H p - 55 i -l d-eia 1 ~ -60 l i . it g ' -i -65 .. s t c. 70 y M 1 -75 ~' d t p uma h -l 'l_o e l
1 TE!iliESSEE VALLEY AUTHORITY ~ ~ F ~ ~ $' SINGLETON MATERIA S ENGI!;EERING LABORATORY ? Soll PROFILE SS, PA, HA, TP BORING) Sheet i 1 Of I Project SEQUOYAH N. P Feature WASTE EVAPORATOR BLDG. 5 Boring SS-2 Station Range Surface El 704.9 ( JLB' CheckedByff Date Drilled I " l l-80 To I-11-80 Prepa:ed By SPT L ,j) Depth El (N) W LL PI X. Remarks .+- j,. 3
- _. -
- ~
-0 .,.. p 1 g ~ 7 T 29.0 54 35 . [ U NO SAMFLE RECOVERY -700 -5 6 2 25.0 60 39 ~ i I 6 32.4 57 ~36 j } -10 -695 ~ 0~ .2 33.4 59 38 _4 g 6 24.8 42 24 FILL . ' ~0, J U -15 -690 7 22.8 42 23 ~ ... e ) 14
- 25. 0
- ' ]
52 32 . j ~ 12 25.6 ~ J0 -685 16 6 25,2 53 33 ~ il 'O 17 24. 5 58 37 - d4 -25 ~680
- 5 27.3 59 38
~"\\n -,G P.GM WEATHERED SHALE ~Yl Sd / 9.7 NP NP -R -l l; m\\ REFUSAL I \\ \\ 40 -675 . i, -35 ~'i!! l
TEf!NESSEE VALLEY AUTHORITY SINGLETON f4ATERIALS E?lGINEERIflG (.ABORATORY i l SOIL PROFILE (UD BORI?lG) i 1 Of I ll f Projec,t SEQUOYAH N. R Feature WASTE PACKAG I NG AREA
- l g!
Boring U S-1 S.ta ti on Range Surface E1 705 5 dd Date Dri,lled 1 80 To 1 a0 Prepared By JLB Checked By V L Dep th El o W LL 'PI X Engineering Test Results ,l 1"=5' u. p - '0' ~ -705 ~$, 6 28.9 63 41 ) [., kl ~ .5 CH -700 / 43.4 82 52 6 c r 4 _.CH 34 .i / 33.4 63 -.10 ~ i -695 ut-yg ~ '23. 7 50 6 '1 ~ -15 u I 25,6 54 32 CH -690 s'26.8 57
- 36...
' * ~ - ~. - _ l SM. 20 /20.2 35 3 WEATHERED SHALE. -685 - 1 D e -25 -680 E l ~ - r { m 3z3-:- - -30 5 e-D ese -35 I i i l
TEll!!ESSEE VALLEY AUbORITY SINGLETON f4ATERIALS. ENGINEERING (.ABORATORY ' ~ SOIL PROFILE (UD BORlNG) j. L 1 Of I f. Proj e c,t SEQUOYAH H. P. Feature WASTE EVAPORATOR BLDG. 704.9 j Boring U S-2 Station Range Surface El Date Dri,lled I-9-80 To i-10 -80 Prepared By JLB dhecked. By 9 L Engineering Test Results I De p th El o W LL PI X f 1 " = 5' l u.c. _o* 2 6 e -t! [ 27.5 57 35 -- 5 -700 __gH g / 28.6 58 34 1 CH /22.3 58 37 -.1 0 -695 d 23.9 43 24 -15 -690 N24.7 51 31 CL-CM ~ ~ .~: J 24.I 44 24 u 20 -685 d 26.2 49 27 ^ -- 25 -680 j 29.5 54 34 .I 33.5 57 36 .a 1 -6 u 30 t p = l r35 p ' '} l i _i '}}