ML16256A156

09 to Final Safety Analysis Report, Chapter 2, Site Characteristics, Appendix 2.5A

ML16256A156
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Site:	Waterford
Issue date:	08/25/2016
From:	Entergy Operations
To:	Office of Nuclear Reactor Regulation
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WSES-FSAR-UNIT-3 2.5A-1 APPENDIX 2.5A LABORATORY TESTING 2.5A GENERAL SAMPLE HANDLING All undisturbed in situ samples were transported horizontally in specially constructed wooden shipping crates and cushioned against sudden movements. All samples including undisturbed samples, jar samples, and bulk samples were transported from the field by special van to the laboratories of Law Engineering Testing Company in Marietta, Georgia and Eustis Engineering Company of New Orleans, Louisiana. Class A backfill material reconstituted for testing was sent to Woodward Clyde Consultants in Clifton, New Jersey.

In the laboratory undisturbed samples were removed from their wooden shipping crates and placed horizontally in racks for storage. Each sample assigned for laboratory tests was cut into six in. long sections with a band saw and then extruded from its protective tube. During the cutting and extrusion process, the laboratorys project engineer or a designated staff engineer inspected the samples to confirm that they were representative of the appropriate stratum. Various tests were run on selected specimens to determine the engineering parameters of the subsurface materials (i.e. classification, strength, consolidation and dynamic tests). General descriptions of the individual tests and test procedures within the various test categories are included in subsequent subsections.

2.5A.1 CLASSIFICATION TESTS a)

Grain Size Distribution Tests Grain size tests were performed on representative specimens using the wet preparation method of soil samples as described in ASTM D 2217. Materials consisting primarily of sand and silt were passed through a set of nested sieves as described in ASTM D 422.

Soils containing significant amounts of fine-grained material were first passed through nested sieves and washed on the No. 200 sieve. Hydrometer analyses were performed on particles finer than the No. 200 sieve as described in ASTM D 422. The particles were suspended in distilled water containing five grams per liter (gpl) deflocculent and the grain size distribution computed from the time rate of settlement of the different size particles.

b)

Atterberg Limits Tests Atterberg limits tests were performed on selected specimens to determine plasticity characteristics. The wet preparation method of soil specimen was used for all plasticity tests as described in ASTM D 2217. The liquid limit (LL) was determined by the one point method in accordance with ASTM D 423. The plastic limit (PL) was determined in accordance with ASTM D 424.

c)

Moisture Content Tests

WSES-FSAR-UNIT-3 2.5A-2 Moisture content determinations were made on representative undisturbed tube and carton samples and jar samples in accordance with ASTM D 2216. Moisture content and unit weight determinations of undisturbed samples were made on trimmed specimens ready for testing. The trimmed specimen was weighed and measured prior to testing and oven dried to constant weight upon test completion.

d)

Specific Gravity Specific gravity tests were performed in accordance with ASTM D 854 on selected undisturbed specimens subjected to consolidation testing.

2.5A.2 STRENGTH TESTS a)

Unconfined Compression Tests Unconfined compression tests were performed on representative Recent and Pleistocene material specimens at their natural moisture content. Controlled strain tests were performed as described in ASTM D 2166 on 1.4 in., two in., and four in. diameter specimens. Unconfined compression tests were also performed on test specimens cut horizontally from the sample as well as vertically.

b)

Triaxial Shear Tests The strength parameters of the various strata were obtained by triaxial shear tests on representative undisturbed tube samples. Specimen preparation for triaxial shear testing was performed as described in ASTM D 2850.

Specimens were back-pressure saturated prior to testing by applying a differential pressure of two psi across the specimen as the chamber pressure and back pressure were increased slowly so that the specimen could adjust to each pressure increment. The pressure was increased about five psi every 30 minutes or longer.

Upon reaching a chamber pressure of 40 psi, the degree of saturation was checked by measuring Skemptons "B" value. If the pore pressure increase was less than the chamber pressure increase, the sample was again subjected to increasing chamber and back pressures at two psi differential until saturation was accomplished.

Saturated specimens were then consolidated to confining pressures within the range of existing and anticipated stress levels. Consolidation of the sample was measured and the specimen was allowed to drain until 100 percent consolidation was accomplished.

1)

Unconsolidated Undrained Triaxial Tests Unconsolidated undrained triaxial shear tests were performed on representative undisturbed specimens of Recent and Pleistocene materials. Testing was done in accordance with ASTM D 2850. The test specimen was encased in a rubber membrane and placed in the load cell. Immediate application of confining pressure and vertical load followed with drainage prohibited.

WSES-FSAR-UNIT-3 2.5A-3 2)

Consolidated Undrained Triaxial Tests Consolidated undrained triaxial tests were performed on selected specimens of Recent material and Pleistocene clay material. Specimen preparation was performed as described in Subsection 2.5A.2.b. Test specimens were encased in a rubber membrane and placed in the load cell. The specimen was allowed to fully consolidate under the cell confining pressure. With consolidation complete, the specimen was sheared with drainage prohibited. Tests where pore water pressure measurements were made were sheared at a controlled strain rate allowing the equalization of pore water pressure throughout the specimen.

3)

Consolidated Drained Triaxial Tests Two series of isotropically consolidated drained triaxial tests were performed on the Class A backfill material. One series of tests was loaded along an active stress path where the vertical stress was held constant while the horizontal stress was decreased. The second series was loaded along a passive stress path where the vertical stress was held constant while the horizontal stress was increased.

All consolidated drained tests were performed on reconstituted test specimens. The specimens (two in. diameter by four in. height) were compacted in eight layers. To obtain a uniform density, the bottom layer had to be slightly undercompacted since compaction of each succeeding layer densified the sand in the layer below it. This is defined as percent undercompaction, Un. The U value in each layer is linearly varied from the bottom to top layer with the bottom (first) layer having the maximum Un value. The U value selected, in this case, for the first layer was two percent. After the specimens were saturated by back pressuring and the use of CO2 at an effective stress of five psi, they were consolidated in increments to the required effective consolidation stress. This stress was applied one day prior to loading to failure. Loading to failure was done at rates slow enough to assure complete drainage of the test specimen.

c)

Direct Shear Tests Unconsolidated undrained (quick) direct shear tests were performed on several specimens taken from undisturbed Recent and Pleistocene material tube samples. The trimmed specimen was placed in the testing frame and a normal load was applied. These loads were typical of in situ stress conditions encountered in the field. Before allowing the specimen in to consolidate under the normal load it was sheared horizontally producing undrained strength results similar to the unconsolidated undrained triaxial test results.

2.5A.3 CONSOLIDATION TESTS Consolidation tests were performed on representative undisturbed specimens. The test procedure was generally in accordance with ASTM D 2435. The specimens were first trimmed to approximately 2-1/2 in.

in diameter and one in. in height and placed in a stainless steel ring coated on the inside with a low friction material. The specimen was then weighed in

WSES-FSAR-UNIT-3 2.5A-4 the ring, and porous stones were placed at both ends of the ring and fitted with a rubber membrane to prevent moisture loss. Vertical loads were then applied to the specimen and increased incrementally at a load increment ratio of one. The resulting deformation of the soil was measured with a micrometer dial gage. Each load was left on the specimen until completion of 100 percent primary consolidation.

Each specimen was rebounded from a stress equal to or slightly greater than the effective overburden pressure. After rebounding to a load typically one ksf or two ksf the loads were increased in the same manner as initially applied until an assigned pressure exceeding the anticipated future soil pressure was reached. The specimen was then incrementally unloaded as during the rebound sequence, back to the original seating load on the specimen.

2.5A.4 ELASTIC PROPERTIES a)

Shear Modulus and Damping Laboratory determinations of elastic soil properties were made by performing load controlled cyclic triaxial tests. Specimens were selected for cyclic triaxial shear tests being representative of the soil strata at the site. These specimens were trimmed into cylinders 1.4 in. or two in. in diameter and encased in rubber membranes. Each specimen was then placed in a compression chamber and confined by pressure equivalent to the effective overburden pressure. The specimens were consolidated at this pressure until volume change ceased or 100 percent consolidation had been achieved. After consolidation, the specimens and chamber were placed in an MTS closed loop control system equipped with a Baldwin-Lima Hamilton load cell. This system was equipped to establish load as a direct primary control parameter. In this manner, a cyclic deviator stress was applied to each specimen. With each application of cyclic deviator stress, recordings of load and deformation with respect to time were made. On each specimen tested, several ranges of cyclic deviator stress were applied with corresponding recordings of load and deformation. Hysterisis loops were plotted from the recorded data and shear strain were calculated therefrom. Utilizing this data, the shear modulus was calculated for each application of cyclic deviator stress to each specimen. The shear modulus was calculated for each specimen for varying shear strain levels.

b)

Poissons Ratio Determination Two specimens were selected for determination of Poissons ratio. Each specimen was trimmed to 1.4 in. in diameter, and encased in a rubber membrane. The sample was then placed in a triaxial cell and consolidated under an all-around air pressure equivalent to the effective overburden pressure. The triaxial chamber utilized in this test was equipped with a lateral strain measuring device. This device consisted of three small feeler arms fixed to the base of the cell and bearing against the specimen. These arms were spring-loaded but the spring force was small enough so that lateral strain of the specimen was not hindered by their presence. Each arm was equipped with a strain gauge which output lateral movement of the specimen in terms of strains in the feeler arms. Small increments of deviator stress were applied with measurements of the resulting axial and lateral strain. Poissons ratio was calculated for each specimen as the ratio of change in lateral strain to change in axial strain.

WSES-FSAR-UNIT-3 2.5A-5 2.5A.5 LIQUEFACTION TESTS Refer to Subsection 2.5.4.8 for a description of strain controlled cyclic triaxial test procedures for determining liquefaction potential.

2.5A.6

SUMMARY

OF TEST RESULTS A summary of test results is presented in Tables 2.5A-1 to 2.5A-4.

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 1 of 56)

LABORATORY TEST

SUMMARY

TABLE BORING 1 Water Density Sample Depth Content (lb/cu ft.)

Atterberg Limits No.

(ft.)

Classification (Percent)

Dry Wet LL PL PI 4

14.4 Medium stiff gray silty clay w/decayed roots 29.1 92.5 119.4 45 23 22 7

29.5 Loose gray clayey silt 38.3 82.6 114.2 37 28 9

10 44.5 Soft gray clay w/sand lenses 50.6 70.5 106.2 64 24 40 19 72.5 Stiff tan and gray clay w/silt lenses 39.1 82.6 114.9 60 28 32 BORING 8 8

24.5 Soft gray clay w/silty clay layers 39.0 80.2 111.5 58 20 38 11 39.5 Medium stiff gray clay w/silt and fine sand lenses 57.6 65.9 103.9 65 21 44 26 88.0 Stiff brown and gray clay w/silt lenses 39.3 82.1 114.4 71 26 45

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 2 of 56)

BORING 12 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

2 5.5 Loose gray clayey silt 35.0 86.0 116.1

=o C=200

• 4 11.5 Loose gray clayey silt 30.1 92.0 119.7

=o C=260

• 5 14.5 Soft gray clay w/silt pockets 39.1 81.0 112.7 760 6

19.5 Loose gray clayey silt 35.1 85.0 114.8

=2 C=110

• 8 29.5 Loose gray clayey silt 36.7 84.2 115.1

=2 C=160

• 10 39.5 Loose gray clayey silt 37.8 83.0 114.4

=3 C=160

• 11 44.5 Medium stiff gray clay w/silty clay and clayey silt layers 47.4 73.9 108.9 1225 13 54.5 Medium stiff greenish-gray clay w/silt pockets 30.1 92.8 120.8 1980 22 77.5 Stiff tan and gray fissured clay w/concretions 38.3 82.0 113.4 3635 BORING 17 3

8.5 Soft gray clay w/silty clay and silty sand layers 40.3 81.2 113.9 540 7

24.5 Medium stiff gray and tan clay 54.1 68.6 105.7 1055 10 39.5 Medium stiff gray clay w/sand pockets and shell fragments 48.1 72.9 108.0 1050 17 63.0 Loose tan sandy silt w/silty clay layer 28.1 94.6 121.2 BORING 18 4

11.5 Soft gray silty clay 37.4 85.1 116.9 670 5

14.5 Soft gray clay w/trace of organic matter 48.9 71.8 106.9 860 6

19.5 Stiff gray and tan clay (LL = 49%

PL = 24%

PI = 25%)

7 24.5 Medium stiff gray and tan clay 44.0 78.4 112.9 1260

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 3 of 56)

BORING 18 (Contd)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

10 39.5 Medium stiff gray clay with silt lenses 49.6 71.7 107.3 1430 11 44.5 Medium stiff gray clay with silt lenses (LL = 53%

PL = 21%

PI = 32%)

12 49.5 Medium stiff gray clay with silt lenses 45.7 75.7 110.3 1250 13 54.5 Very stiff greenish-gray and tan silty clay 25.0 101.8 127.5 4780 16 62.5 Very stiff greenish-gray and tan silty clay (LL = 82%

PL = 24%

PI = 58%)

20 72.5 Stiff tan and gray clay w/ fissures & silt (LL = 97%

PL = 30%

PI = 67%)

24 84.5 Stiff tan and gray silty clay 26.7 99.8 126.4 2705 28 99.5 Stiff gray and tan clay w/sand layer 35.2 88.7 119.9 2990 32 114.5 Stiff gray clay w/silt lenses (LL = 58%

PL = 23%

PI = 35%)

35 124.0 Medium stiff gray silty clay w/sand pockets and shell fragments 30.6 92.3 120.5 1140 39 137.5 Very stiff greenish-gray clay w/silt pockets and concretions 27.4 98.1 125.0 4780 41 144.5 Stiff greenish-gray silty clay w/sand layer (LL = 46%

PL = 18%

PL = 28%)

44 154.5 Stiff gray silty clay w/trace of organic matter 29.3 96.4 124.6 3410 49 177.5 Very stiff greenish-gray clay w/shell fragments (LL = 38%

PL = 25%

PI = 13%)

51 184.5 Stiff greenish-gray and tan clay w/silt lenses 37.0 86.0 118.0 2930 54 194.5 Medium stiff gray sandy clay (LL = 34%

PL = 21%

PI = 13%)

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 4 of 56)

BORING 18 (Contd)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

55 197.5 Stiff gray silty clay 27.6 98.4 125.6 2210 BORING 19 17 63.0 Loose tan sandy silt w/clay layers 29.9 95.0 123.4 BORING 21 17 63.0 Loose tan sandy silt w/clay lenses 31.5 93.5 123.0 BORING 25 Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive Shear in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Strength at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

(lb/sq. ft.)

Stress (Tons/sq. ft.)

1 20 22.5 Medium stiff gray & tan clay with silty clay & sandy silt layers 32.1 88.1 116.3 95 1125

=l C=545*

9.5 1.0 2

20 22.5 Medium stiff gray & tan clay with silty clay & sandy silt layers 35.6 85.6 116.1 100 1225 13.8 3.0 1

28 39.5 Stiff gray & tan clay w/trace of siltY & decayed roots 47.9 73.6 108.9 100 1180

=2 C=520*

3.1 1.0 2

28 39.5 Stiff gray & tan clay w/trace of silt & decayed roots 49.9 72.7 109.0 100 1265 7.1 2.0 1

32 59.5 Soft gray clay w/sand lenses &

pockets 42.4 78.6 111.9 100 880

=0 C=445*

7.1 1.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 5 of 56)

BORING 25 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive Shear in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Strength at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

(lb/sq. ft.)

Stress (Tons/sq. ft.)

2 32 59.5 Soft gray clay w/sand lenses &

pockets 40.8 76.4 107.6 92 905 6.3 2.0 1

34 69.5 Medium stiff gray clay w/sand lenses 45.6 76.6 111.5 100 1095

=0 C=575*

9.2 0.5 2

34 69.5 Medium stiff gray clay w/sand lenses 39.5 82.4 114.9 100 720 4.1 1.0 3

34 69.5 Unable to Test Specimen No. 3 1

36 78.0 Very stiff tan & gray clay w/silt pockets 21.9 106.3 129.6 100 4880

=0 c=2520*

6.1 1.0 2

36 78.0 Very stiff tan & gray clay w/silt pockets 22.9 103.9 127.7 100 4450 9.2 3.0 1

40 87.5 Very stiff brown & gray clay w/silt lenses 35.7 85.3 115.8 100 5600

=0 c=2750*

2 40 87.5 Very stiff brown& gray clay w/fissures 37.3 84.4 115.9 100 5285 2.0 1.0 3

42 92.5 Very stiff brown & gray clay w/fissures 47.1 76.2 112.1 100 2690 4.1 3.0 BORING 26 Unconfined Water Density Compressive Sample Dept h

Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

3 5.5 Medium stiff gray & tan silty clay w/sandy silt lenses 31.3 90.4 118.7 1135 5

11.5 Medium stiff gray & tan clay w/sandy silt pockets & trace of organic matter 45.0 77.2 111.9 1205

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 6 of 56)

BORING 26 (Contd)

Unconfined Water Density Compressive Sample Dept h

Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

10 34.5 Soft gray clay w/sandy silt lenses & pocket 39.3 80.5 112.1 610 13 48.0 Very stiff tan & gray silty clay 18.4 111.6 132.1

=0 c=2520**

15 53.0 Very stiff tan & gray clay 30.9 92.8 121.5 4520 BORING 26 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive Shear in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Strength at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

(lb/sq. ft.)

Stress (Tons/sq. ft.)

1 19 63.0 Stiff tan & gray clay w/silty fine sand lenses 36.2 86.6 117.9 100 3310

=1 c=1570*

5.1 1.0 2

19 63.0 Stiff tan & gray caly w/silty fine san lenses 36.7 85.6 117.0 100 3355 4.1 3.0 BORING 27 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

2 2.5 Soft gray silty clay 32.4 90.4 119.7 785 4

8.5 Soft gray silty clay 31.7 91.4 120.4 915 8

24.5 Soft gray clay w/clayey silt layeres &

trace of organic matter 41.0 80.4 113.4 650 10 31.5 Soft gray clay w/sandy silt layers 38.0 83.3 115.0 945

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 7 of 56)

BORING 27 (Contd)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

11 34.5 Loose gray clayey sand w/shell fragments 42.3 88.7 126.2

=3 c=100*

12 39.5 Mdeium stiff gray clay w/sand pockets &

shell fragments 52.2 70.2 106.8 1535 14 48.0 Very stiff gray & tan clay w/silt pockets 20.5 109.6 132.0 6160 16 53.0 Very stiff tan & gray fissured clay 28.7 94.9 122.1

=8 c=2880**

20 63.0 Very stiff tan & gray clay w/silt lenses 32.6 90.0 119.3 5750 BORING 27 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive Shear in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Strength at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

(lb/sq. ft.)

Stress (Tons/sq. ft.)

1 25 78.0 Medium compact tan clayey silt with sandy silt lenses 21.2 96.8 117.3 78 2490

=17.5C=330*

3.1 1.0 2

25 78.0 Medium compact tan clayey silt with sandy silt lenses 19.1 96.0 114.3 68 6135 3.3 3.0 BORING 28 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

3 8.5 Soft gray silty clay with clayey silt pockets 29.6 91.4 118.5 835 5

14.5 Soft tan & gray Clay with clayey silt layer 34.4 87.9 117.5 970 7

24.5 Soft tan & gray clay w/silt pockets 36.6 84.4 115.2 965

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 8 of 56)

BORING 28 (Contd)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

11 44.5 Soft gray & clay w/sand pockets & shell fragments 43.5 77.4 111.1 840 13 54.5 Medium stiff gray clay w/silt pockets 47.4 74.0 109.1 1355 15 63.0 Very stiff tan & gray silty clay concretions 19.7 108.4 129.8

=7 C=3170*

17 68.0 Stiff tan & gray clay with concretions 34.4 88.6 119.1 3035 BORING 29 4

11.5 Soft gray clay w/silt pockets 40.6 77.8 109.4 515 6

19.5 Medium stiff greenish-gray & tan clay 41.0 81.7 115.2 1805 11 44.5 Medium stiff gray clay w/sand pockets

& shell fragments 49.7 71.3 106.7 1135 14 57.5 Stiff tan & gray fissured clay w/silt lenses & concretions 31.9 91.4 120.6 2955 20 72.5 Stiff tan & gray fissured clay 37.3 84.1 115.5 3635 34 119.5 Stiff gray clay w/silt lenses 44.6 77.0 111.3 2515 BORING 29 (Contd)

Water Density Sample Depth Content (lb/cu ft.)

Atterberg Limits No.

(ft.)

Classification (Percent)

Dry Wet LL PL PI 16 62.5 Stiff tan & gray clay w/silt lenses 28.7 93.8 120.72 64 19 45 22 77.5 Very stiff tan & gray clay w/fissure 38.1 83.3 115.0 85 26 59 31 109.5 Stiff gray clay w/trace of sand 44.9 76.9 111.4 73 25 48 40 139.5 Soft gray sandy clay 29.2 93.9 121.3 32 20 12

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 9 of 56)

BORING 30 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

2 5.5 Medium stiff tan & gray clay w/silt pockets 31.7 89.6 118.0 1950 4

11.5 Soft gray flocculated clay w/roots 51.6 69.6 105.5 750 24 83.0 Stiff tan & gray clay with silt lenses 37.4 85.3 117.2 3095 BORING 31 6

14.5 Soft gray silty clay 31.7 91.4 120.4 810 8

24.5 Soft gray clay w/sandy silt lenses 35.0 88.5 119.5 855 13 49.5 Soft gray clay w/silty sand pockets 51.5 70.9 107.4 995 17 63.0 Medium stiff reddish-brown & gray clay w/sandy silt layers 35.1 86.0 116.1 1390 33 114.5 Stiff gray clay 39.5 82.8 115.5 3520 BORING 35 3

5.5 Soft brown silty clay with clayey silt layers 32.6 90.4 119.9 700 4

8.5 Very soft gray silty clay w/sandy silt layers 34.4 87.6 117.7 440 7

19.5 Medium stiff gray clay with sandy silt lenses 34.3 88.5 118.9 1280 13 44.5 Soft gray clay w/sandy silt lenses 47.1 74.9 110.2 665 BORING 36 2

5.5 Stiff tan & gray silty clay w/clayey silt layers 27.5 92.3 117.7 2255 5

19.5 Stiff gray clay w/silt lenses 32.4 88.0 116.5 2000 9

39.5 Medium stiff gray clay w/sand pockets &

shell fragments 57.1 66.4 104.3 1655 11 49.5 Soft gray clay w/sand pockets 45.0 76.6 111.1 980

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 10 of 56)

BORING 37 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

3 8.5 Soft gray silty clay 38.6 82.7 114.6 715 5

14.5 Medium stiff gray & tan clay w/trace of silt 35.9 85.9 116.7 1550 6

19.5 Medium stiff gray & tan clay wtrace of silt (LL = 74%

PL = 25%

PI = 49%)

BORING 38 5

14.5 Medium stiff gray clay with silt pockets 35.8 85.3 115.8 1350 6

19.5 Medium stiff gray clay w/fissures (LL = 87%

PL = 22%

PI = 65%)

10 39.5 Medium stiff gray clay w/silt pockets &

shell fragments 48.5 73.8 109.6 1195 11 44.5 Medium stiff gray clay W/Silt pockets &

shell fragments (LL = 55%

PL = 20%

PI = 35%)

14 57.5 Extremely stiff greenish-gray & tan clay w/silt pockets 19.6 111.8 133.7 9310 16 62.5 Extremely stiff greenish-gray & tan clay w/silt pockets (LL = 68%

PL = 22%

PI = 46%)

20 72.5 Stiff tan & gray fissured clay w/concretions 40.0 82.1 114.9 3085 22 77.5 Stiff tan & gray fissured clay w/concretions (LL = 94%

PL = 21%

PI = 73%)

BORING 39 2

5.5 Medium stiff tan & gray silty clay w/clayey silt layers 35.4 84.8 114.8 1660 10 34.5 Soft gray clay w/many shells 30.6 Sample disturbed by shells.

18 63.0 Loose tan sandy silt w/clay layers 26.7 98.0 124.2

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 11 of 56)

BORING 41 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

14 58.0 Very stiff gray & tan clay 22.6 104.0 127.5 6640 16 63.0 Stiff tan & gray fissured clay B 36.1 88.6 120.6

=13 C=575*

A 36.5 89.2 121.8 20 73.0 Stiff tan & gray clay 34.5 90.6 121.9 3200 34 124.5 Medium stiff gray clay w/shells 41.2 79.8 112.7 1835 37 134.5 Medium stiff gray clay w/silty clay layers 32.9 89.2 118.5 1465 (LL = 31%

PL = 27%

PI = 4%

49 184.5 Very stiff gray & tan clay with silt lenses 33.2 90.0 119.9 4530 55 204.5 Stiff gray clay w/silt lenses 37.2 85.8 117.7 3015 72 264.5 Stiff gray clay w/silt lenses 38.0 84.6 116.7 3405 Unconfined Unified Water Compressive Depth Soil Content Atterberg Limits Dry Density Strength (ft.)

Classification (Percent)

LL PL PI (lb/cu ft.)

(lb/sq ft.)

12 CH 48.7 61 24 37 70.4 45 CH 51.5 61 21 40 73.2 1000 68 CH 36.0 66 24 42 85.7 79 CH 43.0 102 31 71 76.7 3900 84.5 CL 27.3 29 22 7

91.5 115 CH 41.7 71 25 46 79.1 115 CH 42.8 67 24 43 78.2 139 ML 27.6 41 36 5

95.8 2200 154.5 ML 32.0 26 26 0

88.7 195 CL 30.4 36 20 16 92.3 4000 224.5 CH 42.3 111 28 83 78.0 294.5 CH 34.7 68 25 43 86.6

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 12 of 56)

BORING 42 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

14 58.0 Very stiff greenish-gray & tan clay w/concretions 24.2 103.7 128.8 4130 15 68.0 Stiff tan & gray fissured clay B 40.2 82.0 115.0

=12 C=575*

Stiff tan & gray fissured clay A 41.0 84.3 118.9 24 84.5 Very stiff tan & gray clay 35.2 87.0 117.6 4345 34 118.0 Medium stiff gray clay w/silt lenses 45.2 76.5 111.1 1635 42 144.5 Very stiff greenish-gray clay w/silt lenses 34.6 88.6 119.3 4040 57 194.5 Very stiff greenish-gray tan clay 33.8 90.2 120.7 4430 64 218.0 Very stiff gray & tan clay 40.0 82.3 115.2 5120 83 284.5 Very stiff gray clay w/shell fragments 32.1 92.8 122.6 5845 Unconfined Unified Water Compressive Depth Soil Content Atterberg Limits Dry Density Strength (ft.)

Classification (Percent)

LL PL PI (lb/cu ft.)

(lb/sq ft.)

9 CL 36.3 37 21 16 84.8 1600 25 CH 50.6 102 29 73 72.7 1400 50 CH 49.8 77 23 54 69.1 63 CL 22.9 27 21 6

73 CH 43.0 89 29 60 78.3 79 CH 42.3 90 26 64 79.0 4700 89 CH 38.3 94 27 67 84.1 3000 115 CH 52.3 74 25 49 70.5 1600 124.5 CH 63.4 111 37 74 135 ML 30.1 91.5 1800 168 CH 23.5 58 22 36 101.5 185 CH 39.2 72 27 45 82.7 3700 244.5 CL 33.6 43 21 22 88.0 314.5 CL 30.8 42 21 21 92.2

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 13 of 56)

BORING 43 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

16 52.5 Stiff tan & gray clay with concretions 34.2 89.1 119.6 2815 20 72.5 Stiff to very stiff tan & gray fissured clay, concretions & silt lenses 39.1 (LL = 67% PL = 23%

PI = 44%)

24 84.5 Stiff tan & gray fissured clay w/concretion 42.6 79.6 113.5 2460 31 117.5 Stiff gray clay w/silt lenses 29.4 (LL = 90% PL = 26%

PI = 64%)

39 114.5 Very stiff greenish-gray clay w/silt pockets 28.8 28.8 96.9 124.8 BORING 44 24 79.5 Stiff tan & gray silty clay 30.7 92.6 121.0 3345 31 114.5 Stiff gray clay w/silt lenses 39.1 83.2 115.7 2340 60 214.5 Very stiff greenish-gray clay w/silt pockets

& trace of organic matter 32.4 (LL = 71% PL = 25%

PI = 46%)

61 217.5 Very stiff greenish-gray clay w/silt pockets

& trace of organic matter 32.5 (LL = 92% PL = 27%

PI = 65%)

63 224.5 Very stiff greenish-gray clay with trace of organic matter 46.9 (LL = 99% PL = 33%

PI = 66%)

64 227.5 Very stiff greenish-gray clay with trace of organic matter 39.8 (LL = 76% PL = 25%

PI = 51%)

BORING 45 3

8.5 Soft tan & gray silty clay 33.7 89.0 119.0 915 8

29.5 Very loose gray sandy silt w/clay & clayey silt layers Sample disturbed.

12 44.5 Soft gray clay w/sand tenses 52.7 69.2 105.7 950 BORING 46 5

14.5 Soft gray silty clay 31.2 92.1 120.9 830 11 36.5 Medium stiff gray clay with sand lenses 45.0 76.3 110.6 1005

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 14 of 56)

BORING 46 (Contd)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

14 49.5 Medium stiff gray clay w/silt lenses 52.2 70.0 106.5 1155 18 62.5 Loose tan sandy silt w/clay lenses 28.0 96.5 123.5 22 74.5 Very stiff tan & gray clay 38.1 83.3 115.7 4105 23 78.0 Very stiff tan & gray clay 42.2 (LL = 83% PL = 20%

PI = 63%)

BORING 51 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 4

11.0 Medium stiff gray clay w/roots 42.9 75.1 107.4 1630 74 27 47 5

14.0 Soft gray clay w/silt pockets & trace of organic matter 34.4 83.7 112.5 620 59 21 38 8

29.0 Medium stiff gray clay w/silt lenses 42.6 73.4 104.7 1085 86 26 60 9

34.0 Stiff gray clay with silt lenses 50.9 69.5 104.9 2275 82 23 59 12 49.0 Stiff gray clay with silt pockets 43.2 77.8 111.4 2310 68 21 47 16 69.0 Stiff tan & gray fissured clay with silt lenses 33.5 89.2 119.1 2940 87 31 56 17 74.0 Stiff tan & gray fissured clay 38.0 82.3 113.6

=7 C=1740*+

78 30 48 18 79.0 Very stiff tan & gray slightly fissured clay 39.5 81.7 114.0 6680++

96 29 67 19 84.0 Stiff tan & gray fissured clay 32.7 88.3 127.2 2030+++

60 20 40 BORING 52 Water Density Sample Depth Content (lb/cu ft.)

Atterberg Limits No.

(ft.)

Classification (Percent)

Dry Wet LL PL PI 29 63.0 Medium compact tan sandy silt w/clay layers 24 21 3

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 15 of 56)

BORING 52 (Contd)

Water Density Sample Depth Content (lb/cu ft.)

Atterberg Limits No.

(ft.)

Classification (Percent)

Dry Wet LL PL PI 45 109.0 Stiff gray clay 43.1 78.6 112.5 75 23 52 51 124.0 Stiff gray & brown clay w/organic matter 69.0 58.2 98.4 138 46 92 61 149.0 Very stiff gray & tan clay w/fine sand lenses 29.8 93.7 121.6 61 20 41 72 179.0 Very stiff gray & tan clay w/fine sand lenses 28.8 94.1 121.2 60 25 35 Unconfined Water Density Compressive Percent Sample Depth.

Content (lb/cu ft.)

Strength Strain No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

@ Failure 46 109.5 Stiff gray clay w/silt lenses 45.6 77.1 112.3 3325 10 48 114.5 Stiff gray clay w/silt lenses 43.0 79.2 113.3 1615 4

(LL = 61%

PL = 24% PI = 37%

50 119.5 Stiff gray clay 38.2 84.1 116.2 2260 8

52 124.5 Medium stiff gray clay w/lenses of organic matter &

trace of sand & shells 63.8 61.0 99.9 1485 5

54 129.0 Medium compact gray sandy silt w/silty clay layers 31.6 90.3 118.8

=7 C=230*

7 56 134.5 Medium stiff gray silty clay w/sandy silt layers 30.5 93.2 121.6 1020 8

(LL = 34%

PL = 22% PI = 12%)

58 139.5 Medium stiff gray silty clay w/sandy silt layers 31.1 90.3 118.4 1240 7

60 144.5 Very stiff gray clay 31.3 91.2 119.7 4030 3

62 149.5 Very stiff gray & tan clay w/silt lenses & concretions 30.7 92.2 120.5 5690 5

64 154.5 Stiff gray & tan clay 32.3 90.3 119.5 3300 8

(LL = 67% PL = 29% PI = 38%)

65 159.5 Stiff gray & tan clay 25.2 99.8 124.9 5000 17

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 16 of 56)

BORING 52 (Contd)

Unconfined Water Density Compressive Percent Sample Depth.

Content (lb/cu ft.)

Strength Strain No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

@ Failure 67 164.5 Stiff gray & tan clay 25.3 99.3 124.4 5515 17 (LL = 69% PL = 19% PI = 50%)

69 169.0 Very stiff greenish-gray & tan silty clay (crumbly) 28.5 95.3 122.5

=11 C=1150*

71 174.5 Stiff gray & brown clay w/sand pockets 28.0 95.4 122.1 4310 8

(LL = 56% PL = 21% PI = 35%)

73 179.5 Very stiff gray & brown clay w/sand pockets 28.8 96.4 122.2 4495 8

75 184.5 Very stiff gray & brown clay w/sand pockets & trace of shells 32.9 89.4 118.8 4505 3

77 189.5 Very stiff gray & tan clay 37.4 83.9 115.3 6395 10 (LL = 69% PL = 25% PI = 44%)

79 194.5 Stiff gray clay w/silt lenses 37.6 84.9 116.8 2360 10 81 199.5 Stiff gray clay w/thin sand layers 31.2 88.5 116.1 2910 7

(LL = 61% PL = 23% PI = 38%)

BORING 53 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 18 74.0 Stiff tan & gray highly fissured clay 38.3 92.9 114.7 1985++

83 25 58 19 79.0 Stiff gray & tan silty clay with clayey silt layers &

decayed shells 30.7 91.8 120.0 2305++

41 19 22 20 84.0 Medium stiff tan & gray highly fissured clay w/concretions 36.0 84.6 115.1 1985+++

83 27 56 21 89.0 Stiff gray & tan highly fissured clay w/sand layers 33.5 86.4 115.3 1270+++

70 50 20

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 17 of 56)

BORING 54 Unconfined Water Density Compressive Percent Sample Depth.

Content (lb/cu ft.)

Strength Strain No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

@ Failure 30 64.5 Medium compact sandy silt w/clay layers (LL = 37%

PL = 16% PI = 21%)

47 114.5 Stiff gray clay w/sand lenses 36.2 85.3 116.2 2940 10 49 119.5 Stiff gray clay w/sand lenses 42.1 79.7 113.3 2520 7

(LL = 71%

PL = 26% PI = 45%)

51 124.5 Stiff dark gray clay w/lenses of organic matter & roots 65.6 59.7 98.9 3585 5

58 144.0 Very stiff greenish-gray & tan clay w/sand pockets (crumbly) 33.7 88.5 118.3

=9 C=890*

2 61 149.5 Stiff greenish-gray & tan clay w/silt lenses & pockets 29.5 94.4 122.2

=O C=2260*

10 63 154.5 Stiff gray & tan clay w/silt pockets 30.1 91.6 119.2 2550*

5 (LL = 62%

PL = 23% PI = 39%)

64 159.5 Medium stiff gray silty clay w/silty sand layers 30.5 92.4 120.6

=10 C=200*

11 67 164.5 Very stiff gray & tan clay w/trace of silts 23.0 103.4 127.2 6825 14 (LL = 61%

PL = 18% PI = 43%)

69 169.5 Stiff gray & tan clay w/silty clay layers 27.8 95.1 121.5 2475 3

71 174.5 Very stiff tan & gray fissured clay w/decayed shells 30.5 90.4 118.0

=9 C=935*

7 (LL = 77%

PL = 26% PI = 51%)

72 179.5 Very stiff tan & gray clay w/fine sand lenses &

pockets 27.2 95.0 120.8 6380 4

75 184.5 Very stiff gray & tan fissured clay w/sand lenses 39.7 82.3 115.0

=5 C=1800*

5 (LL = 72%

PL = 28% PI = 44%)

77 189.5 Very stiff gray & tan clay w/sand lenses 37.6 84.1 115.7 4205 2.5 79 194.5 Very stiff gray & tan clay w/sand lenses 34.6 86.3 116.2 5990 6

(LL = 57%

PL = 22% PI = 35%)

81 199.5 Stiff gray clay w/sand pockets & trace shells 32.8 89.8 119.3 3440 12

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 18 of 56)

BORING 54 (Contd)

Water Density Sample Depth Content (lb/cu ft.)

Atterberg Limits No.

(ft.)

Classification (Percent)

Dry Wet LL PL PI 46 114.0 Stiff gray clay 43.5 77.8 116.6 70 25 45 50 124.0 Stiff gray & brown clay w/organic matter 74.6 54.3 94.8 139 46 93 60 149.0 Very stiff tan & gray fissured clay 40.6 79.3 111.5 90 30 60 73 179.5 Stiff tan & gray clay w/sand lenses 29.4 91.7 118.7 83 32 51 BORING 55 Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

3 5

Soft tan & gray silty clay 30.8 92.8 121.4 905V+

3 5

Soft tan & gray silty clay 31.3 91.9 120.7 910H+

8 10.5 Soft gray clay 48.5 71.6 106.3 785V+

(LL = 62%

PL = 24%

PI = 38%)

8 10.5 Soft gray clay 40.2 79.7 111.7 1040H+

11 14.0 Medium stiff gray clay 38.3 80.4 111.2 890v+

11 14.0 Medium stiff gray clay 39.9 80.4 112.5 1150H+

15 19.5 Medium stiff gray & tan clay 36.7 84.8 115.9 1315V+

(LL = 52%

PL = 23%

PI = 29%)

15 19.5 Medium stiff gray & tan clay 44.0 77.6 111.7 1115H+

16 23.5 Medium stiff gray & tan clay 48.1 72.6 107.5 1090v+

16 23.5 Medium stiff gray & tan clay 45.5 75.3 109.6 1040H+

20 28.5 Soft gray silty clay 39.3 79.5 110.8 465V+

(LL = 34%

PL = 27%

PI = 7%)

20 28.5 Soft gray silty clay 32.5 90.0 29 39.5 Soft to medium stiff gray clay w/sand pockets 44.6 73.1 105.7 770H+

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 19 of 56)

BORING 55 (Contd)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

29 39.5 Soft to medium stiff gray clay w/sand pockets 48.2 72.8 107.9 1020H+

31 46.0 Soft to medium stiff gray clay w/sand pockets 62.5 63.0 102.3 1365V+

(LL = 91%

PL = 27%

PI = 64%

31 46.0 Soft to medium stiff gray clay w/sand pockets 66.0 60.7 100.7 1235H+

35 49.5 Soft to medium stiff gray clay w/sand pockets 49.8 71.0 106.3 990V+

35 49.5 Soft to medium stiff gray clay w/sand pockets 47.8 73.0 107.9 1115H+

39 54.5 Very stiff greenish-gray & tan clay w/sand pockets 25.1 100.9 126.2 4030V+

39 54.5 Very stiff greenish-gray & tan clay w/sand pockets 23.4 104.0 128.3 4190H+

42 59.5 Very stiff tan & gray clay 26.6 98.9 125.2 4955V+

42 59.5 Stiff tan & gray clay w/silt pockets 32.8 89.1 118.3 4220H+

43 64.5 Loose tan silty fine sand w/clay lenses 22.7 92.6 113.6 47 68.5 Very stiff tan & gray clay w/sandy silt lenses 30.3 92.7 120.8 4610V+

47 68.5 Very stiff tan & gray clay w/sandy silt lenses 37.8 79.4 119.4 6120H+

51 73.5 Stiff tan & gray slightly fissured clay 41.7 79.7 112.9 3455V+

51 73.5 Stiff tan & gray slightly fissured clay 39.9 80.8 113.0 2795H+

55 78.5 Stiff tan & gray slightly fissured clay 41.0 80.9 114.1 3555V+

55 78.5 Stiff tan & gray slightly fissured clay 41.4 78.0 110.2 5645H+

58 83.5 Medium stiff tan & gray clay w/many silt lenses 29.9 93.8 121.8 1845V+

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 20 of 56)

BORING 55 (Contd.)

Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

58 83.5 Medium stiff tan & gray clay w/many silt lenses 34.7 85.1 114.6 1225H+

63 88.5 Stiff tan & gray slightly fissured clay 39.6 82.1 114.6 3890V+

63 88.5 Stiff tan & gray slightly fissured clay 37.1 83.8 114.9 6885H+

66 93.0 Very soft tan & gray clay w/many sand layers 29.3 90.6 117.1 405V+

66 93.0 Stiff tan & gray clay w/few sand pockets 34.8 86.2 116.2 2520H+

72 113.0 Medium stiff gray clay with sand pockets 47.6 74.5 109.7 1885V+

72 113.0 Medium stiff gray clay with sand pockets 38.9 81.7 113.5 3960H+

77 118.0 Medium stiff gray fissured clay w/sand lenses 47.8 74.8 110.6 1510V+

77 118.0 Stiff gray clay w/silt pockets 50.4 71.4 107.4 3500H+

82 123.0 Soft gray clay w/sand lenses & shell fragments 28.8 94.8 122.1 920V+

82 123.0 Soft gray clay w/sand lenses & shell fragments 42.7 77.8 111.0 2710H+

92 133.0 Soft gray silty clay 32.0 91.6 120.9 920V+

92 133.0 Medium stiff gray clay with thick silty clay layers 31.9 90.5 119.4 1440H+

93 133.5 Soft gray silty clay with silty sand layers 25.9 93.4 117.6 600V+

93 133.5 Medium stiff gray silty clay 31.4 91.1 119.7 1090H+

98 139.0 Soft gray silty clay with sandy silt layers 31.3 90.1 118.3 545V+

98 139.0 Medium stiff gray clay with clayey silt layers 28.7 94.5 121.6 1385H+

100 142.5 Medium stiff gray clay with clayey silt layers 28.0 97.5 124.8 1185V+

100 142.5 Medium stiff gray clay with clayey silt layers 29.3 91.4 118.2 1255H+

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 21 of 56)

BORING 55 (Contd)

Unconfined Water Density Compressive Sample Dept h

Content (lb/cu ft.)

Strength No.

(ft.)

Classification (Percent)

Dry Wet (lb/sq ft.)

103 144.0 Stiff gray clay w/clayey silt layers 30.8 91.9 120.2 2025V+

103 144.0 Soft greenish-gray fissured clay 37.1 81.0 111.1 765H+

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 41 58.5 Stiff greenish-gray & tan clay w/shell fragments &

silt pockets 24.6 100.0 124.6 5870 65 19 46 48 69.5 Very stiff tan & gray clay w/sandy silt lenses 34.2 87.5 117.4 3650 56 79.0 Very stiff tan & gray clay w/sandy silt lenses 41.4 80.0 113.1 3810 95 28 67 65 89.5 Very stiff tan & gray clay w/sandy silt lenses 35.0 85.6 115.6 2740 71 112.5 Very stiff tan & gray clay w/sandy silt lenses 45.7 75.5 110.0 2535 84 26 58 80 119.5 Very stiff tan & gray clay w/sandy silt lenses 41.2 80.0 112.9 2665 84*

124.0 Soft gray silty clay w/wood & many shells 47.4 58 26 32 85 124.5 Stiff gray clay w/organic matter & shell fragments 42.1 76.3 108.4 2385 87 27 60 86 127.5 Stiff gray clay with decayed wood 62.8 61.2 99.8 3345 120 41 79 87 128.0 Very stiff dark gray clay w/organic matter & decayed wood 69.2 56.9 96.3 5290 133 58 75 88 128.5 Very stiff dark gray clay w/organic matter & decayed wood 91.1 3345 153 60 93 91 132.5 Medium stiff gray silty clay 32.4 89.4 118.4 1195 34 21 13 94 134.0 Medium stiff gray silty clay w/sand pockets 30.0 93.4 121.4 1245 27 24 3

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 22 of 56)

BORING 55 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 97 138.5 Medium stiff gray clay w/sand lenses & pockets 33.6 88.6 118.4 1510 37 23 14 99 139.5 Medium stiff gray sandy clay 29.3 94.1 121.7 1360 31 23 8

108 149.5 Very stiff greenish-gray clay 29.3 93.6 121.0 4810 65 26 39 117 164.5 Very stiff greenish-gray clay 25.6 99.1 124.5 8815 124 173.0 Very stiff greenish-gray clay 33.1 87.6 116.6 4335 69 21 48 132 183.0 Very stiff greenish-gray clay 27.4 93.9 119.6 3860 141 192.0 Medium stiff gray sandy clay w/sand pockets 29.4 96.4 124.7 1060 30 22 8

151 199.0 Stiff to very stiff gray clay w/sand pockets 34.6 86.8 116.8 4800 BORING 56 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 30 64.5 Medium compact tan clayey silt w/sand lenses 25.4 26 24 2

44 105.0 Stiff gray clay w/silt lenses 41.7 79.7 112.9 3970 69 24 45 46 109.0 Stiff gray clay w/silt lenses 42.5 78.2 114.3 3795 47 109.5 Stiff gray clay w/silt lenses 46.3 75.7 110.7 81 25 56 48 114.0 Stiff gray clay w/silt lenses 45.3 75.5 108.3 2345 87 26 61 50 119.0 Stiff gray clay w/silt lenses 37.1 84.4 115.7 2135 52 124.0 Extremely stiff dark gray & tan clay w/trace of silt 49.5 70.1 104.9 11345 124 47 77 53 124.5 Extremely stiff dark gray & tan clay w/trace of silt 73.8 55.2 95.9 136 38 98 54 129.0 Stiff gray & brown clay w/trace of organic matter

& silt 53.4 67.0 102.8 3450

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 23 of 56)

BORING 56 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 56 134.0 Medium stiff gray silty clay w/sandy silt lenses 30.7 91.5 119.6 1850 37 25 12 58 139.0 Medium stiff gray silty clay w/sandy silt lenses 29.9 93.4 121.3 1550 60 144.0 Stiff gray clay w/sandy silt lenses & pockets 28.0 93.2 119.3 2475 38 22 16 62 149.0 Stiff gray clay 28.0 95.7 122.5 60 28 32 63 149.5 Very stiff gray clay with trace of silt 26.5 97.8 123.7 6755 65 154.5 Medium stiff gray & tan clay w/trace of silt 36.5 84.6 115.5 1765 74 27 47 66*

159.0 Loose gray clayey silt w/sand layers 67*

159.5 Loose gray clayey silt w/sand layers 68 164.0 Soft gray silty clay w/sand lenses 31.6 92.6 121.9 880 32 26 6

70 169.0 Stiff gray silty clay w/sand lenses 26.7 95.7 121.3 2295 72 174.0 Very stiff gray & tan clay w/trace of silt 29.6 94.3 121.0 6490 58 24 34 74 179.0 Very stiff gray & tan clay w/trace of silt 26.8 97.1 123.1 4910 75 179.5 Very stiff gray & tan clay w/trace of silt 28.8 95.1 122.5 57 25 32 76 184.0 Very stiff gray & tan clay w/trace of silt 32.3 89.4 118.3 6570 63 23 40 78 189.0 Very stiff gray clay with trace of silt 39.2 81.7 113.7 4890 80 194.0 Very stiff gray clay with trace of silt 29.6 93.2 120.8 4160 50 20 30 83 199.5 Very stiff gray clay with trace of silt 34.7 87.1 117.3 4160

• Sample dried out.

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 24 of 56)

BORING 58 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 47 114.5 Stiff gray clay w/silt lenses 42.8 78.2 111.7 3195 83 23 60 48 119.0 Stiff gray clay w/silt lenses 38.5 82.6 114.4 2565 63 22 41 50 124.0 Very stiff gray & brown clay trace organic matter 66.0 60.0 99.6 4630 52 129.0 Stiff gray clay silt lenses 38.4 82.8 114.6 3195 63 23 40 57 143.0 Stiff gray clay silt lenses 31.6 91.1 119.9 3649 59 149.0 Siff gray & tan clay w/silt lenses 33.0 89.5 119.0 3755 69 24 45 61 154.5 Medium stiff gray silty clay w/fine sand layers 33.2 90.0 119.9 1470 65 169.0 Stiff greenish-gray clay w/sand lenses 24.9 99.2 123.9 2850 42 19 23 67 174.0 Very stiff greenish-gray & tan clay w/sandy silt lenses & pockets 31.9 90.3 119.1 4385 69 179.0 Stiff greenish-gray & tan clay w/silt lenses 34.2 87.5 117.4 3400 74 24 50 71 184.0 Very stiff greenish-gray & tan clay w/trace of silt & fissures 33.3 88.8 118.4 7340 73 189.0 Very stiff greenish-gray & tan clay w/trace of silt & fissures 34.5 86.9 116.9 5030 64 26 38 75 194.0 Stiff gray clay silt lenses 39.0 82.6 114.8 2500 77 199.0 Stiff gray clay silt lenses 37.9 83.5 115.1 3875 67 27 40 BORING 59 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 3

5.0- 6.0 Soft tan & gray silty clay 38.3 37.4 80.1 79.4 110.8 109.1 805+++

525R+++

7 9.0- 10.0 Soft gray clay w/sandy silt pockets & trace of roots 44.6 43.6 75.1 74.0 108.7 106.3 585++

260R++

12 14.0- 15.0 Medium stiff gray silty clay 28.3 30.8 93.4 89.5 119.9 117.1 1430+++

390R+++

38 23 15

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 25 of 56)

BORING 59 (Cont)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 16 19.0- 20.0 Medium stiff gray & tan fissured clay 52.0 46.1 70.4 72.1 107.1 105.3 1150++

1325R++

20 24.0- 25.0 Soft tan & gray silty clay w/clayey silt layers 32.6 32.8 87.9 86.6 116.6 115.0 685++

120R++

29 25 4

21 25.0- 27.0 Medium stiff tan & gray silty clay w/sandy silt layers 32.5 28.2 88.2 89.8 116.9 115.1 1495+++

175R+++

30 26 4

26 36.0- 37.0 Soft gray clay w/sand lenses 45.7 75.1 109.4 2160 54 21 33 31 42.0- 43.0 Soft gray clay w/silt lenses 45.3 43.9 73.3 74.0 106.5 106.6 635++

145R++

38 50.0- 51.0 Medium stiff gray clay w/silt lenses & trace of shells 44.1 45.2 76.3 74.5 109.9 108.2 1385+++

450R+++

59 21 38 41 53.0- 54.0 Medium stiff gray clay w/silt pockets 27.0 95.5 121.3 1885++

43 55.0- 56.0 Stiff greenish-gray & tan silty clay 21.1 106.4 128.9 3310+++

58 17 41 51 63.0- 64.0 Soft tan & gray silty clay w/clayey silt layers 238.7 94.1 121.1 915+++

55 69.0- 70.0 Very stiff tan & gray fissured clay 37.9 83.1 114.6 2895+++

100 24 76 61 75.0- 76.0 Stiff tan & gray fissured clay with concretions 44.8 77.1 111.7 2050++

64 78.0- 84.0 Medium stiff tan & gray silty clay w/clayey silt layers 31.3 92.2 121.1 1655++

69 83.0- 84.0 Medium stiff tan & gray silty clay w/clayey silt layers 31.5 68 22 46 70 84.0- 85.0 Very stiff tan & gray fissured clay 37.9 84.4 116.4 1855+++

81 22 59 74 91.0- 92.0 Loose tan sand w/clay layers 30.6 90.2 117.8 490+++

80 111.0-112.0 Stiff gray clay w/silt lenses 41.6 79.1 112.0 2605+++

71 23 48 85 117.0-118.0 Medium stiff gray clay 47.3 74.0 109.0 1985+++

92 124.0-125.0 Stiff gray clay w/wood & shells 59.6 62.8 100.2 2565+++

131 38 93

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 26 of 56)

BORING 59 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 101 142.0- 143.0 Very soft gray sandy clay 30.8 90.6 118.5 330+++

106 149.0- 150.0 Very stiff greenish-gray & tan fissured clay 38.4 84.5 116.9 1890+++

110 154.0- 155.0 Stiff greenish-gray fissured clay 34.7 87.7 118.1 3555+++

71 27 44 116 167.0- 168.0 Stiff greenish-gray fissured clay 25.9 99.7 125.5 3295++

127 179.0- 180.0 Stiff greenish-gray fissured clay 32.6 88.7 117.6 2075++

133 186.0- 187.0 Stiff greenish-gray fissured clay 35.2 87.1 117.8 1755+++

63 21 42 141 194.0- 195.0 Medium stiff gray silty clay w/trace of sand 28.9 92.0 118.6 1195++

59 73.0 Stiff tan & gray very fissured clay 43.3 76.0 108.7 2135+

56 70.0 Very stiff tan & gray fissured clay w/many silt lenses 36.0 86.3 117.4 5675+++

59 73.0 Stiff tan & gray very fissured clay 39.1 81.2 112.9 725 57 71.0 Very stiff tan & gray fissured clay 34.7 87.3 117.7 5095++

86 118.0 Stiff gray fissured clay 49.8 76.8 115.0 4075+

86 118.0 Stiff gray fissured clay w/few very fine sand lenses 50.3 72.2 108.5 3655+++

88 120.0 Stiff gray fissured clay w/few small shells 44.7 77.1 111.6 2895 84 116.0 Stiff gray fissured clay w/fine sand lenses 47.0 74.8 110.0 2450++

52 66.0 Medium stiff tan & gray fissured clay w/silt lenses 35.9 84.6 115.0 1185V 52 66.0 Medium stiff tan & gray fissured clay w/silt lenses 35.7 85.0 115.3 1280H 54 68.0 Stiff tan & gray fissured clay w/silt lenses 35.4 86.5 117.1 2745V 54 68.0 Stiff tan & gray fissured clay w/silt lenses 38.0 81.1 111.9 3360H

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 27 of 56)

BORING 59 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 60 74.0 Stiff tan & gray fissured clay 38.2 82.1 113.5 2355V 60 74.0 Stiff tan & gray fissured clay 40.2 78.4 109.9 1660H 63 77.0 Stiff tan & gray fissured clay w/sand pockets &

shell fragments 32.1 90.2 119.2 3775V 63 77.0 Stiff tan & gray fissured clay w/sand pockets &

shell fragments 32.9 88.4 117.5 4250H 65 79.0 Medium stiff tan & gray silty clay w/sandy silt lenses 28.7 93.8 120.7 1355V 65 79.0 Medium stiff tan & gray silty clay w/sandy silt lenses 28.9 93.9 121.0 1050H 71 86.0 Stiff tan & gray fissured clay 45.0 75.2 109.4 1990V 71 86.0 Stiff tan & gray fissured clay 54.9 69.6 107.6 2590H 73 89.0 Stiff tan & gray clay w/sand pockets 28.6 88.9 114.3 1365V 73 89.0 Stiff tan & gray clay w/sand pockets 37.0 82.6 113.2 1595H 81 112.0 Stiff gray clay w/sand lenses 49.2 73.5 109.7 2940V 81 112.0 Stiff gray clay w/sand lenses 48.5 73.1 108.6 3430H 83 114.0 Stiff gray clay w/silt lenses 42.8 78.5 112.1 2200V 83 114.0 Stiff gray clay w/silt lenses 42.6 78.0 111.2 3030H 86 118.0 Stiff gray clay 39.6 81.3 113.9 3475V 86 118.0 Stiff gray clay 39.8 81.3 113.7 3160H 89 121.0 Medium stiff gray clay w/sand lenses 41.2 80.9 114.2 1740V 89 121.0 Medium stiff gray clay w/sand lenses 37.7 83.3 114.7 1620H 90 122.0 Medium stiff gray clay w/sand layers & shells 33.3 89.3 119.0 835V 90 122.0 Medium stiff gray clay w/sand layers & shells 45.1 75.1 109.0 1390H

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 28 of 56)

BORING 59 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 91 123.0 Medium stiff gray & brown clay w/organic matter, decayed wood & shells 52.7 68.7 104.9 1980V 91 123.0 Medium stiff gray & brown clay w/organic matter, decayed wood & shells 57.3 65.4 102.9 1805H 100 139.0 Medium stiff gray silty clay 33.1 89.9 119.7 1775V 100 139.0 Medium stiff gray silty clay 32.6 89.1 118.1 1710H 102 143.0 Medium stiff gray clay with sandy silt lenses, pockets & trace of organic matter 31.8 90.0 118.6 1985V 102 143.0 Medium stiff gray clay with sandy silt lenses, pockets & trace of organic matter 30.9 90.3 118.2 1635H 12 14.0 Soft gray clay 28.3 38 23 15 21 25.0 Soft to medium stiff tan & gray silty clay w/sand pockets 32.5 30 26 4

38 50.0 Medium stiff gray clay w/sand lenses 44.1 50 21 38 42 54.0 Medium stiff gray & tan clay w/silt lenses 24.5 98.9 123.1 1875++

52 16 36 43 55.0 Very stiff tan & gray silty clay 21.1 58 17 41 45 57.0 Very stiff greenish-gray & tan silty clay 20.3 108.3 130.4 4520+++

46 16 30 50 62.0 Medium stiff gray & tan fissured clay w/silt pockets & concretions 30.1 91.7 119.3 1880++

56 18 38 53 67.0 Stiff tan & gray fissured clay with sandy silt lenses 34.9 85.8 115.7

-2 C=920*+

71 21 50 55 69.0 Stiff tan & gray fissured clay with sandy silt lenses 37.9 100 24 76 58 72.0 Stiff tan & gray fissured clay with sandy silt lenses 35.1 85.3 115.2 3075++

76 26 50 62 76.0 Medium stiff tan & gray fissured clay w/concretions 40.1 81.0 113.5 1310++

92 18 64

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 29 of 56)

BORING 59 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 67 81.0 Medium stiff tan & gray fissured clay w/concretions 27.6 92.3 117.8 1855++

56 17 39 70 84.0 Very stiff tan & gray silty clay 37.9 81 22 59 72 88.0 Medium stiff tan & gray silty clay w/sand pockets 36.3 85.3 116.2 1475++

47 21 26 80 111.0 Stiff gray clay w/silt lenses 41.6 71 23 48 82 113.0 Stiff gray clay silt lenses 45.1 76.3 110.8 3270++

76 27 49 87 119.0 Stiff gray clay silt lenses 38.7 82.0 113.7 3000++

65 21 44 92 124.0 Stiff gray clay w/shells 59.6 131 38 93 93 126.0 Dark gray silty clay w/roots 54.6 85 30 55 94 127.0 Dark gray silty clay w/roots 44.1 77.0 110.9 3585 69 23 46 99 138.0 Stiff gray silty clay w/sand pockets 32.6 89.9 119.2

-0 C=1080*+

39 24 15 108 152.0 Stiff gray fissured clay 32.2 89.2 117.9 2940+++

68 24 44 110 154.0 Very stiff tan & gray clay 35.2 63 21 42 115 166.0 Very stiff greenish-gray clay 25.0 100.2 125.2 5575+++

54 17 37 122 174.0 Very stiff greenish-gray clay 27.8 95.4 122.0 5515++

57 24 33 132 184.0 Very stiff tan & gray clay 34.2 87.6 117.5 5185++

65 22 43 133 186.0 Very stiff tan & gray clay 35.2 63 21 42 136 189.0 Very stiff gray clay w/sandy silt lenses 37.9 84.7 116.8 4235++

65 24 41 BORING 60 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 43 104.5 Stiff gray clay w/silt lenses 41.0 81.0 114.2 3075 65 26 39 45 109.5 Stiff gray clay w/fissures 44.3 77.1 111.3 1900 77 25 52 47 114.5 Stiff gray clay w/fissures 46.0 75.9 110.8 1875 73 23 50 49 119.5 Medium stiff gray silty clay many shell fragments 34.7 84.3 113.6 975

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 30 of 56)

BORING 60 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 51 124.5 Medium stiff gray silty claw with sand lenses &

trace of shells 26.1 99.2 125.1 1675 32 24 8

53 129.5 Very stiff gray silty clay w/sand pockets 29.6 93.9 121.7 4195 55 134.5 Medium stiff gray silty clay w/sand layers 32.8 90.3 119.9 1730 34 23 11 57 139.5 Medium stiff gray silty clay w/sand lenses 33.0 88.7 118.0 1450 59 144.5 Stiff gray clay silt lenses 32.1 90.3 119.3 2785 40 23 17 61 149.5 Very stiff gray clay 32.4 90.2 119.4 5125 63 154.5 Soft gray silty clay w/sand lenses & pockets 17.3 105.1 123.4 825 28 20 8

65 159.5 Stiff gray silty clay 26.6 95.7 121.2 2115 67 164.5 Very stiff greenish-gray & tan silty clay 26.4 97.5 123.2 6450 63 22 41 69 169.5 Stiff greenish-gray silty clay w/sand pockets 27.4 97.2 123.8 2655 71 174.5 Very stiff gray & tan clay w/silt pockets 28.4 95.7 122.9 4625 548 27 31 73 179.5 Very stiff gray & tan clay w/silt pockets 26.2 94.3 119.0 5375 75 184.5 Stiff gray & tan clay w/silt lenses & pockets 28.3 93.0 119.3 3090 64 25 39 77 189.5 Very stiff gray clay 37.9 84.5 116.5 4025 79 194.5 Stiff gray clay trace of silt 32.8 89.8 119.3 3805 52 24 28 81 199.5 Stiff gray clay trace of silt 31.7 89.5 117.9 3305

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 31 of 56)

BORING 61 Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 15 54.0 Medium stiff gray & tan silty clay 24.6 99.4 123.9 1125++

44 18 26 16 59.0 Very stiff tan & gray clay w/silt pockets 28.4 95.6 122.8 4595++

46 21 25 18 69.0 Stiff tan & gray clay w/silt lenses 36.9 84.1 115.1 3370++

92 29 63 19 74.0 Very stiff tan & gray clay w/silt lenses 31.7 87.6 115.4 4350++

71 26 45 20 79.0 Stiff tan & gray clay w/trace of shells 37.8 83.4 115.0 3990++

88 28 60 21 84.0 Stiff tan & gray slightly fissued clay 34.6 88.2 118.7 3110++

71 26 45 22 87.0 Very stiff gray & tan clay w/sandy silt lenses 32.0 88.0 116.2 4260++

74 27 47 BORING 62 13 54.0 Stiff gray & tan silty clay (crumbly) 21.5 103.6 125.8 2505++

48 16 32 14 59.0 Stiff tan & gray silty clay w/sand pockets

& concretions 20.2 106.4 127.9 3830++

50 19 31 15 64.0 Stiff tan & gray highly fissured clay w/silt lenses 31.2 90.6 118.9 2895+++

64 21 43 16 69.0 Stiff tan & gray highly fissured clay w/silt lenses 31.6 89.1 117.3 2605++

58 24 34 17 74.0 Stiff tan & gray highly fissured clay w/silt lenses 42.7 78.2 116.1 2795++

95 31 64 19 84.0 Stiff tan & gray fissured clay 32.6 88.1 116.8 3400+++

82 25 57 20 88.0 Soft gray & tan clay w/sand pockets 40.6 80.5 113.2 1770+

66 21 45 BORING 63 43 109.0 Stiff gray clay 46.1 75.5 110.3 79 23 56 44 109.5 Stiff gray clay w/sand pockets 47.3 75.3 110.9 2050 75 27 48 45 114.0 Stiff gray clay w/sand pockets 48.4 74.6 110.7 3735 47 119.0 Stiff gray clay w/sand pockets 48.0 72.3 107.0 3705 78 28 50

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 32 of 56)

BORING 63 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 49 124.0 Stiff gray clay w/sand pockets 36.6 84.9 116.0 3680 50 124.5 Medium stiff gray clay w/silt lenses 38.1 84.5 116.7 55 19 36 51 129.0 Stiff gray clay 38.5 83.1 115.1 3550 64 26 38 56 144.0 Very stiff gray clay w/silt pocket & shell fragments 29.6 91.4 118.5 4450 58 149.0 Stiff gray clay silt pockets 31.6 91.8 120.8 3745 58 26 32 59 149.5 Stifcf gray clay silt pockets 26.6 96.2 121.8 62 25 37 60 154.0 Loose gray clayey silt w/clay lenses 30.1 93.4 121.5

=15 C=140*

67 174.0 Very stiff gray & tan fissured clay silt lenses 26.2 96.7 122.0

=5 C=2205*

51 24 27 69 179.0 Very stiff gray & tan clay 30.5 90.9 118.6 4100 71 184.0 Very stiff gray & tan clay 35.3 84.4 114.2 78 26 52 72 184.5 Stiff gray & tan clay w/silt lenses and shells 29.3 90.2 116.6 2410 55 23 32 73 189.0 Medium stiff gray clay w/sand lenses & pockets 27.5 95.7 122.0 1730 75 194.0 Very stiff gray clay w/trace of sand 35.1 86.6 177.0 6535 57 24 33 77 199.0 Stiff gray clay silt lenses 35.9 85.5 166.2 3310 BORING 64 60 74.0 Very stiff tan & gray clay w/sand lenses 41.7 80 24 56 BORING 65 43 104.5 Stiff gray clay w/silt lenses 38.3 83.3 115.2 2005 44 109.0 Stiff gray clay w/silt lenses 42.8 78.1 111.5 81 24 57 45 109.5 Medium stiff gray clay w/silt lenses 43.2 77.7 111.3 1920 75 25 50

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 33 of 56)

BORING 65 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 47 114.5 Stiff gray clay silt lenses 36.0 85.9 116.8 2905 49 119.5 Stiff gray clay sand lenses 42.1 79.0 122.6 2320 71 22 49 50 124.0 Stiff gray clay sand lenses 44.2 78.4 113.1 117 43 74 51 124.5 Medium stiff brown & gray clay w/trace of organic matter & shells 59.0 66.1 105.1 1565 53 129.5 Medium stiff gray silty clay w/sandy silt layers 28.4 94.3 121.1 1265 Nonplastic 55 134.5 Loose gray sandy silt w/clay lenses 30.2 93.0 121.0

=3 C=300*

57 139.5 Medium stiff gray clay w/sand lenses 31.0 90.0 117.9 1620 34 22 12 59 144.5 Stiff gray clay w/sand lenses 31.8 90.0 118.6 2170 61 149.5 Stiff gray clay with fissures 40.8 80.2 112.9 3405 80 28 52 62 154.5 Stiff gray clay with fissures 45.6 74.9 109.1 3110 64 159.0 Medium stiff gray silty clay w/sandy silt layers 30.0 93.0 120.9 1295 27 24 3

66 164.0 Loose gray clayey silt w/clay lenses 30.0 93.4 121.4

=8 C=120*

68 169.0 Very stiff tan & gray clay w/trace of silt 23.5 103.2 127.5 7300 58 25 33 70 174.0 Very stiff tan & gray clay w/sandy silt pockets

& shells 29.3 93.9 121.4 3210 72 179.0 Very stiff tan & gray clay w/sandy silt pockets

& shells 29.4 94.0 121.6 3870 53 21 32 73 179.5 Very stiff tan & gray clay w/sandy silt pockets

& shells 27.0 94.3 119.8 56 22 34 74 184.0 Stiff gray tan clay w/trace of silt & fissures 36.3 85.0 115.9 2935 76 189.0 Stiff gray & tan clay w/trace of silt & fissures 39.1 82.3 114.5 3745 70 22 48

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 34 of 56)

BORING 65 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 78 194.0 Very stiff gray clay w/trace of sand & shells 34.0 88.3 118.3 4780 80 199.0 Stiff gray clay with sandy silt pockets & shells 29.2 93.1 120.3 2705 43 18 25 BORING 66 15 59.0 Stiff greenish-gray & tan silty clay 20.9 105.6 127.7 3125++

55 17 38 17 69.0 Stiff tan & gray slightly fissured clay 39.1 80.4 119.9 3900++

96 30 66 18 74.0 Very stiff tan & gray clay 39.5 81.4 113.5 4290++

19 79.0 Stiff gray & tan clay w/silt pockets & concretions 29.0 93.6 120.7 3270+++

37 19 18 20 84.0 Very stiff tan & gray clay w/silt lenses &

concretions 28.6 94.1 121.0 5300++

90 18 72 21 87.5 Stiff gray & tan clay w/silt lenses 34.2 86.2 115.7 3585++

74 23 51 BORING 67 45 109.0 Stiff gray clay 42.6 78.4 111.8 75 22 53 46 109.5 Stiff gray clay w/silt lenses 36.3 85.2 116.4 3820 48 114.5 Stiff gray clay w/fissures 40.8 79.0 111.2 1935 65 24 41 49 119.0 Medium stiff gray clay w/organic matter & shells 62.1 60.0 97.2 1765 50 119.5 Medium stiff gray clay w/organic matter & shells 77.1 52.9 93.7 117 43 74 52 124.5 Stiff gray clay trace of silt 38.3 82.1 113.4 2830 59 24 35 55 139.0 Stiff gray clay trace of silt 32.8 89.4 118.7 2840 57 144.0 Very stiff greenish-gray clay w/silt pockets 27.9 95.2 121.7 5850 69 23 46 59 149.0 Medium stiff tan & gray clay 32.6 89.6 118.8 59 24 35

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 35 of 56)

BORING 67 (Contd)

Unconfined Water Density Compressive Atterberg Sample Depth.

Content (lb/cu ft.)

Strength Limits No.

(ft.)

Classification (Percent Dry Wet (lb/sq. ft.)

LL PL PI 60 149.5 Very stiff greenish-gray clay w/fissures 31.0 92.6 121.3 3310 62 154.5 Very stiff tan & gray clay 30.6 90.0 117.5 4880 64 159.0 Very stiff gray silty clay w/sandy silt layers 29.8 92.4 119.9 5500 65 164.0 Stiff gray silty clay 28.4 96.5 123.9 2650 Nonplastic 66 164.5 Stiff gray silty clay w/clayey silt layers 27.8 95.6 122.2 2965 68 169.5 Stiff gray silty clay w/sandy silt layers 29.4 92.3 119.4 2315 70 174.5 Very stiff gray & tan clay w/trace of silt &

concretions 32.8 88.8 117.9 4175 71 24 47 71 179.0 Very stiff gray & tan clay w/trace of silt &

concretions 37.2 85.0 116.6 75 24 51 72 179.5 Very stiff gray & tan clay w/fissures 32.3 89.4 118.3 3155 74 184.5 Very stiff gray & tan clay w/fissures 36.8 84.7 115.9 3545 68 24 44 76 189.5 Stiff gray silty clay w/sand lenses & pockets 27.1 78 194.5 Very stiff gray clay w/trace of silt 33.7 87.9 117.5 4645 56 20 36 80 199.5 Very stiff gray clay w/trace of sand & shells 27.6 96.2 122.8 4290 BORING 68 15 59.0 Stiff tan & gray fissured clay 33.8 89.7 120.0 2680++

70 27 43 16 64.0 Medium stiff tan & gray fissured clay w/silt lenses 34.6 88.0 118.4

=10 C=290*+

65 27 38 17 69.0 Stiff tan & gray fissured clay w/silt lenses 37.4 84.4 117.0

=7 C=1740*+

80 25 55 18 74.0 Stiff tan & gray fissured clay 33.8 86.1 115.2 3775++

89 30 59 19 79.0 Stiff tan & gray fissured clay 39.9 81.7 114.3

=7 C=550*+

56 21 35 20 84.0 Stiff tan & gray fissured clay 36.8 84.8 116.0

=3 C=1930*+

95 25 70

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 36 of 56)

BORING 69 Unconsolidated Undrained Triaxial Shear Tests Natural Water Density Shear Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values (Tons/sq. ft.)

1 8

9.0 Soft gray silty clay 38.6 80.6 111.7 95 490

=8 C=505**

0.0 2

8 9.0 Soft gray silty clay 35.2 84.4 114.1 96 635 0.5 3

8 9.0 Soft gray silty clay 35.8 84.2 114.3 96 805 1.0 4

8 9.0 Soft gray silty6 clay 37.1 82.4 113.0 99 995 2.0 1

14 15.0 Soft gray clay w/roots 37.7 81.5 112.2 95 835

=6 C=505**

0.5 2

14 15.0 Soft gray clay w/roots 42.3 78.2 111.3 99 475 0.5 3

14 15.0 Soft gray clay w/roots 43.2 77.6 111.1 99 518 1.0 4

14 15.0 Soft gray clay w/roots 43.7 76.1 109.4 97 850 2.0 1

17 18.0 Medium stiff gray & tan silty clay (LL=40% PL=21% PI=19%)

1 25 26.0 Stiff tan & gray clay 40.4 78.2 109.8 94 1253

=8 C=1080**

0.5 2

25 26.0 Stiff tan & gray clay 41.5 77.5 109.7 95 1440 1.0 3

25 26.0 Stiff tan & gray clay 42.9 76.1 108.7 95 1685 2.0 1

37 39.0 Soft gray clay w/silty sand lenses

& shell fragments 56.0 66.3 103.4 98 547

=4 C=460**

0.5 2

37 39.0 Soft gray clay w/silty sand lenses

& shell fragments 56.3 66.4 103.8 99 605 1.0 3

37 39.0 Soft gray clay w/silty sand lenses

& shell fragments 60.3 63.6 102.0 99 619 2.0 1

49 51.0 Medium stiff gray clay 65.3 60.9 100.6 100 690

=0 C=690**

0.5 2

49 51.0 Medium stiff gray clay 66.1 60.4 100.3 100 690 1.0 3

49 51.0 Medium stiff gray clay 67.7 59.9 100.5 100 690 2.0 1

55 57.0 Stiff tan & gray clay w/trace of silt 25.7 101.8 128.0 100 1180

=7 C=1110**

0.5 2

55 57.0 Stiff tan & gray clay w/trace of silt 24.7 100.3 125.1 97 1310 1.0 3

55 57.0 Stiff tan & gray clay w/trace of silt 24.1 101.6 126.1 98 1785 3.0 1

58 60.0 Very stiff tan & gray silty clay 19.1 107.9 128.5 91 1930

=2 C=1900*

0.5 2

58 60.0 Very stiff tan & gray silty clay 21.2 105.8 128.2 96 1945 1.0 3

58 60.0 Very stiff tank & gray silty clay 21.4 105.5 128.1 96 2115 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 37 of 56)

BORING 69 (Contd)

Unconsolidated Undrained Triaxial Shear Tests Natural Water Density Shear Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values (Tons/sq. ft.)

1 61 63.0 Medium stiff tan & gray fissured clay 30.3 92.5 120.5 99 1008

=7 C=865**

0.5 2

61 63.0 Medium stiff tan & gray fissured clay 29.5 92.3 119.5 96 920 0.5 3

61 63.0 Medium stiff tan & gray fissured clay 35.5 85.7 116.0 98 1008 1.0 4

61 63.0 Medium stiff tan & gray fissured clay 28.7 93.9 120.8 97 1210 1.0 5

61 63.0 Medium stiff tan & gray fissured clay 28.9 93.1 120.0 96 1870 3.0 6

61 63.0 Medium stiff tan & gray fissured clay 31.7 89.8 118.3 97 1310 3.0 1

75 77.0 Very stiff tan & gray fissured clay 41.2 80.6 113.8 100 2361

=0 C=2175**

0.5 2

75 77.0 Very stiff tan & gray fissured clay 40.6 81.2 114.2 100 2175 1.0 3

75 77.0 Very stiff tan & gray fissured clay 43.2 78.5 112.4 100 2175 3.0 1

78 80.0 Stiff tan & gray fissured clay w/shell fragments 41.4 80.1 113.3 100 1585

=1 C=1740**

0.5 2

78 80.0 Stiff tan & gray fissured clay w/shell fragments 41.2 80.1 113.1 100 1800 1.0 3

78 80.0 Stiff tan & gray fissured clay w/shell fragments 40.5 81.0 113.8 100 1642 3.0 4

78 80.0 Stiff tan & gray fissured clay w/shell fragments 38.6 83.4 115.6 100 2045 3.0 1

83 85.0 Stiff tan & gray clay with sandy silt pockets & concretions (Crumbly) 28.8 93.3 120.2 96 1570

=5 C=1440**

0.5 2

83 85.0 Stiff tan & gray clay with sandy silt pockets & concretions (Crumbly) 33.3 87.6 116.8 97 1455 1.0 3

83 85.0 Stiff tan & gray clay with sandy silt pockets & concretions (Crumbly) 32.1 89.5 118.2 98 1612 1.0 4

83 85.0 Stiff tan & gray clay with sandy silt pockets & concretions (Crumbly) 35.2 85.5 115.6 97 1945 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 38 of 56)

BORING 69 (Contd)

Natural Unconfined Water Density Compressive Sample Depth Content (lb/cu ft.)

Degree Strength No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

8 14 15.0 Soft gray clay 42.4 77.7 110.6 97 907 25 26.0 Medium stiff gray clay 44.2 76.6 110.4 99 1065 37 39.0 Medium stiff gray clay w/silty sand lenses & shell fragments 51.6 69.7 105.7 97 1325 49 51.0 Stiff gray clay 53.5 69.7 107.0 100 1512 55 57.0 Stiff gray clay w/trace of silt 24.3 100.8 125.3 97 3456 58 60.0 Very stiff tan & gray silty clay 19.5 110.5 132.0 100 4838 Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 7

8.0 Soft gray & tan silty clay 35.5 84.0 113.8 96 1008

=2 C=317*

13.0 0.0 2

7 8.0 Soft gray & tan silty clay 36.8 82.6 113.0 97 720 5.0 0.5 3

7 8.0 Soft gray & tan silty clay 38.0 80.7 111.4 96 777 5.0 1.0 4

7 8.0 Soft gray & tan silty clay 35.3 85.0 115.0 98 921 9.0 2.0 1

13 14.0 Soft gray silty clay 45.5 74.7 108.7 100 576

=0 C=300*

5.5 0.0 2

13 14.0 Soft gray silty clay 35.9 85.3 115.6 100 446 9.0 0.5 3

13 14.0 Soft gray silty clay 36.5 85.7 117.0 100 619 18.0 1.0 4

13 14.0 Soft gray silty clay 35.3 85.6 115.8 99 547 15.5 2.0 5

13 14.0 Soft gray silty clay 47.4 73.6 108.5 100 749 11.3 2.0 1

26 27.0 Medium stiff gray & tan clay w/many fissures 50.7 69.9 105.3 97 1220

=0 C=735*

3.1 0.0 2

26 27.0 Medium stiff gray & tan clay w/many fissures 49.9 71.3 106.9 100 1250 4.1 0.5 3

26 27.0 Medium stiff gray & tan clay w/many fissures 51.2 70.3 106.3 99 935 2.5 1.0 4

26 27.0 Medium stiff gray & tan clay w/many fissures 49.6 71.2 106.5 98 1125 2.5 1.0 5

26 27.0 Medium stiff gray & tan clay w/many fissures 48.5 72.0 107.0 98 1525 8.1 2.0 1

38 40.0 Medium stiff gray clay w/sand lenses & pockets 52.9 67.1 102.5 95 965

=2 C=417*

6.1 0.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 39 of 56)

BORING 69 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

2 38 40.0 Medium stiff gray clay w/sand lenses & pockets 56.0 67.1 104.7 100 965 7.1 0.5 3

38 40.0 Medium stiff gray clay w/sand lenses & pockets 59.2 65.3 104.0 100 1080 6.1 1.0 4

38 40.0 Medium stiff gray clay w/sand lenses & pockets 54.3 67.7 104.7 98 1035 6.1 2.0 1

48 50.0 Medium stiff gray clay w/sand pockets 60.6 63.8 102.5 99 1730

=0 C=619 8.1 0.0 2

48 50.0 Medium stiff gray clay w/sand pockets 54.7 65.8 106.0 100 1250 8.1 0.5 3

48 50.0 Medium stiff gray clay w/sand pockets 57.4 66.4 104.5 100 1250 9.2 1.0 4

48 50.0 Medium stiff gray clay w/sand pockets 61.9 63.8 103.3 100 1225 5.1 2.0 5

48 50.0 Medium stiff gray clay w/sand pockets 56.7 67.1 105.3 100 1135 6.1 2.0 1

54 56.0 Medium stiff gray clay w/silt pockets 29.6 93.4 121.0 99 1810 11.2 0.0 2

54 56.0 Medium stiff gray clay w/silt pockets 28.8 96.7 124.5 100 1110

=4 C=490*

8.1 0.5 3

54 56.0 Medium stiff gray clay w/silt pockets 27.2 96.4 122.6 98 1355 13.2 1.0 4

54 56.0 Medium stiff gray clay w.silt pockets 27.4 96.1 122.4 98 1210 11.2 3.0 5

54 56.0 Medium stiff gray clay w/silt pockets 28.9 97.4 125.5 100 1800 9.2 3.0 1

57 59.0 Stiff greenish-gray & tan clay (Crumbly) 20.7 104.2 125.6 90 2820

=12 C=720*

3.1 0.0 2

57 59.0 Stiff greenish-gray & tan clay (Crumbly) 20.1 102.6 123.2 84 2060 7.1 0.5 3

57 59.0 Stiff greenish-gray & tan clay (Crumbly) 21.2 102.8 124.6 89 2750 9.2 1.0 4

57 59.0 Stiff greenish-gray & tan clay (Crumbly) 20.9 102.3 123.6 87 4350 7.1 3.0 1

62 64.0 Medium stiff gray & tan clay with silt pockets 30.6 92.3 120.5 100 2450

=1 C=907*

10.2 0.0 2

62 64.0 Medium stiff gray & tan clay with silt pockets 30.2 92.5 120.4 100 1125 5.1 0.5 3

62 64.0 Medium stiff gray & tan clay with silt pockets 28.7 95.7 123.2 100 2215 5.1 0.5

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 40 of 56)

BORING 69 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

4 62 64.0 Medium stiff gray & tan clay with silt pockets 28.3 95.7 122.8 100 1960 6.1 1.0 5

62 64.0 Medium stiff gray & tan clay with silt pockets 30.2 93.0 121.1 100 2090 8.1 3.0 1

70 72.0 Stiff gray & tan clay w/silt lenses & slickensides 31.4 90.7 119.2 98 1700

=0 C=1510*

6.1 3.0 2

70 72.0 Stiff gray & tan clay w/silt lenses & slickensides 38.4 82.1 113.6 100 3155 5.1 0.5 3

70 72.0 Stiff gray & tan clay w/silt lenses & slickensides 39.4 82.4 114.9 100 2925 6.1 1.0 4

70 72.0 Stiff gray & tan clay w/silt lenses & slickensides 34.9 86.2 116.3 100 1640 5.1 1.0 5

70 72.0 Stiff gray & tan clay w/silt lenses & slickensides 35.5 86.2 116.8 100 1800 4.1 3.0 6

70 72.0 Stiff gray & tan clay w/silt lenses & slickensides 35.6 84.6 114.7 97 1395 7.1 3.0 1

74 76.0 Stiff tan & gray clay with slickensides 41.7 81.0 114.8 100 4810

=0 C=1340*

5.1 0.0 2

74 76.0 Stiff tan & gray clay with slickensides 38.3 83.9 116.0 100 3945 5.1 0.5 3

74 76.0 Stiff tan & gray clay with slickensides 38.9 82.4 114.5 100 2650 3.1 1.0 4

74 76.0 Stiff tan & gray clay with slickensides 39.7 82.3 115.0 100 2535 3.0 1.0 5

74 76.0 Stiff tan & gray clay with slickensides 40.7 80.7 113.6 100 2750 7.1 3.0 6

74 76.0 Stiff tan & gray clay with slickensides 38.6 82.0 113.7 100 1525 2.5 3.0 1

77 79.0 Stff brown & gray fissured clay 40.6 81.5 114.6 100 2620

=12 C=662*

8.1 0.0 2

77 79.0 Stiff brown & gray fissured clay 46.9 75.5 110.9 100 1800 3.0 0.5 3

77 79.0 Stiff brown & gray fissured clay 42.1 79.9 113.5 100 2015 2.5 0.5 4

77 79.0 Stiff brown & gray fissured clay 43.9 78.1 112.4 100 2880 2.0 1.0 5

77 79.0 Stiff brown & gray fissured clay 38.7 83.7 116.1 100 2215 3.1 1.0 6

77 79.0 Stiff brown & gray fissured clay 42.67 79.0 112.7 100 4610 4.1 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 41 of 56)

BORING 69 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 81 83.0 Stiff gray & tan clay w/silt pockets 28.3 95.4 122.4 100 2390

=0 C=1150*

10.2 0.0 2

81 83.0 Stiff gray & tan clay w/silt pockets 28.7 95.6 123.0 100 2190 9.1 0.5 3

81 83.0 Stiff gray & tan clay w/silt pockets 27.8 96.3 123.1 100 2320 7.1 1.0 4

81 83.0 Stiff gray & tan clay w/silt pockets 29.6 93.7 121.4 100 3310 15.3 3.0 1

88 92.0 Stiff gray & tan clay 33.7 88.7 118.6 100 2220

=1 C=850*

8.1 0.0 2

88 92.0 Stiff gray & tan clay 40.4 81.4 114.2 100 2100 3.1 0.5 3

88 92.0 Stiff gray & tan clay 41.8 80.0 113.4 100 1670 3.1 1.0 4

88 92.0 Stiff gray & tan clay 43.9 78.1 112.4 100 1370 1.5 1.0 5

88 92.0 Stiff gray & tan clay 40.9 80.5 113.4 100 1395 1.5 3.0 6

88 92.0 Stiff gray & tan clay 44.0 77.4 111.4 100 1900 5.1 3.0 1

Com-posite 96.0 115.0 Very dense gray silty sand with trace of clay 19.8 105.9 126.9 90 3125

=31 C=316*

5.0 0.5 2

Com-posite 96.0 115.0 Very dense gray silty sand with trace of clay 20.8 104.2 125.8 91 5933 6.2 1.0 3

Com-posite 96.0 115.0 Very dense gray silty sand with trace of clay 20.3 104.3 125.5 90 13464 6.2 3.0 BORING 70 1

8 8.0 Loose gray clayey silt w/silty clay layers 28.3 93.1 119.4 94 1282

=4 C=435*

10.0 0.0 2

8 8.0 Loose gray clayey silt w/silty clay layers 27.5 92.7 118.2 90 1008 10.0 0.5 3

8 8.0 Loose gray clayey silt w/silty clay layers 27.9 90.9 116.3 87 9654 9.0 1.0 4

8 8.0 Loose gray clayey silt w/silty clay layers 28.2 91.4 117.2 90 1498 10.0 2.0 1

1 11 12 11.0 12.0 Tan & gray clayey silt Tan & gray clayey silt (LL = 32% PL = 25% PI = 7%)

(LL = 56% PL = 26% PI = 30%)

1 17 17.0 Soft gray silty clay 34.1 86.5 116.0 97 605

=0 C=315*

20.0 0.0 2

17 17.0 Soft gray silty clay 32.1 91.0 120.2 100 403 8.2 0.5 3

17 17.0 Soft gray silty clay 32.3 89.9 118.9 99 560 12.2 1.0 4

17 17.0 Soft gray silty clay 34.8 86.3 116.3 99 720 17.3 2.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 42 of 56)

BORING 70 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 18 18.0 Soft gray silty clay 42.5 76.1 118.4 94 865

=0 C=430*

7.1 0.0 2

18 18.0 Soft gray silty clay 37.0 82.4 112.9 97 650 15.3 0.5 3

18 18.0 Soft gray silty clay 36.7 82.6 112.9 97 820 8.2 1.0 4

18 18.0 Soft gray silty clay 37.1 81.7 112.0 96 535 8.1 2.0 5

18 18.0 Soft gray silty clay 26.7 98.4 124.7 100 1065 4.1 2.0 1

20 20.0 Medium stiff gray clay (LL = 66% PL = 18% PI = 48%)

1 24 24.0 Soft gray silty clay w/clayey silt layers 34.3 87.2 117.1 100 1065

=0 C=530*

10.2 0.0 2

24 24.0 Soft gray silty clay w/clayey silt layers 33.8 88.7 118.6 100 605 11.2 0.5 3

24 24.0 Soft gray silty clay w/clayey silt layers 33.2 88.1 117.3 98 720 7.1 1.0 4

24 24.0 SOft gray silty clay w/clayey silt layers 33.4 87.2 116.3 98 706 10.2 2.0 5

24 24.0 Soft gray silty clay w/clayey silt layers 33.2 88.1 117.3 98 1152 18.3 2.0 1

31 31.0 Medium stiff gray & tan fissured clay 51.0 70.0 105.8 98 1730

=0 C=705*

5.1 0.0 2

31 31.0 Medium stiff gray & tan fissured clay 52.9 68.9 105.3 98 1008 4.1 0.5 3

31 31.0 Medium stiff gray & tan fissured clay 51.7 70.2 106.5 100 1280 8.1 1.0 4

31 31.0 Medium stiff gray & tan fissured clay 50.7 70.6 106.4 100 1470 5.1 2.0 1

40 41.0 Medium stiff gray & tan fissured clay (LL = 26% PL = 23% PI = 3%)

1 41 42.0 Very soft gray clay w/many sand lenses 41.6 78.7 111.4 98 660

=0 C=173*

5.2 0.0 2

41 42.0 Very soft gray clay w/many sand lenses 32.8 89.0 118.1 99 290 10.2 0.5 3

41 42.0 Very soft gray clay w/many sand lenses 32.5 88.0 116.6 96 290 6.1 1.0 4

41 42.0 Very soft gray clay w/many sand lenses 32.4 89.3 118.2 99 390 3.1 2.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 43 of 56)

BORING 70 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 45 46.0 Medium stiff gray clay w/many sand lenses & trace shells 36.4 83.8 114.3 98 1150

=0 C=560*

10.2 0.0 2

45 46.0 Medium stiff gray clay w/many sand lenses & trace shells 38.6 82.4 114.2 100 765 8.1 0.5 3

45 46.0 Medium stiff gray clay w/many sand lenses & trace shells 35.4 85.3 115.8 98 1135 8.1 1.0 4

45 46.0 Medium stiff gray clay w/many sand lenses & trace shells 38.2 83.7 115.7 100 1560 9.2 2.0 1

47 48.0 Very loose gray clay sand with trace of shells 31.6 89.8 118.2 96 547

=3 C=145*

12.2 0.0 2

47 48.0 Very loose gray clay sand with trace of shells 32.9 89.9 119.5 99 390 14.2 0.5 3

47 48.0 Very loose gray clay sand with trace of shells 31.3 91.3 119.9 99 490 10.2 1.0 4

47 48.0 Very loose gray clay sand with trace of shells 31.8 91.1 120.0 100 635 15.3 2.0 1

52 53.0 Medium stiff gray clay w/sand lenses & pockets 51.9 69.1 105.9 98 1380

=0 C=675*

11.2 0.0 2

52 53.0 Medium stiff gray clay w/sand lenses & pockets 42.1 77.2 109.7 96 1020 9.2 0.5 3

52 53.0 Medium stiff gray clay w/sand lenses & pockets 47.5 73.2 108.0 99 1370 7.1 1.0 4

52 53.0 Medium stiff gray clay w/sand lenses & pockets 45.8 76.3 111.2 100 1035 8.1 2.0 5

52 53.0 Medium stiff gray clay w/sand lenses & pockets 54.7 68.8 106.8 100 1065 7.1 2.0 1

56 57.0 Medium stiff gray clay w/sand lenses, pockets & trace of shells 42.6 77.7 110.8 98 1670

=0 C=720*

9.2 0.0 2

56 57.0 Medium stiff gray clay w/sand lenses, pockets & trace of shells 41.9 79.0 112.1 99 1440 8.1 0.5 3

56 57.0 Medium stiff gray clay w/sand lenses, pockets & trace of shells 40.7 80.0 112.6 100 1410 8.1 1.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 44 of 56)

BORING 70 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

4 56 57.0 Medium stiff gray clay w/sand lenses, pockets & trace of shells 42.4 78.4 111.6 99 1240 5.1 1.0 5

56 57.0 Medium stiff gray clay w/sand lenses, pockets & trace of shells 40.2 79.1 110.9 96 805 6.1 2.0 6

56 57.0 Medium stiff gray clay w/sand lenses, pockets & trace of shells 41.5 79.4 112.4 99 1470 9.2 2.0 1

62 63.0 Stiff-greenish-gray & tan clay w/trace of silt 21.8 106.1 129.2 100 5585

=6 C=1540 18.3 0.0 2

62 63.0 Stiff greenish-gray & tan clay w/trace of silt 21.6 107.8 131.0 100 3700 8.1 0.5 3

62 63.0 Stiff greenish-gray & tan clay w/trace of silt 22.5 105.7 129.5 100 1845 7.1 1.0 4

62 63.0 Stiff greenish-gray & tan clay w/trace of silt 20.9 108.9 131.7 100 4145 13.1 1.0 5

62 63.0 Stiff greenish-gray & tan clay w/trace of silt 21.2 107.3 130.0 100 4765 15.3 3.0 1

74 77.0 Stiff gray & tan clay w/silt pockets 36.0 84.9 115.5 100 2810

=4 C=1455*

6.1 0.0 2

74 77.0 Stiff gray & tan clay w/silt pockets 42.9 80.1 114.5 100 3255 6.1 0.5 3

74 77.0 Stiff gray & tan clay w/silt pockets 43.9 78.8 113.4 100 4840 5.1 1.0 4

74 77.0 Stiff gray & tan clay w/silt pockets 44.1 77.1 111.1 100 3960 4.1 3.0 5

74 77.0 Stiff gray & tan clay w/silt pockets 42.0 79.0 112.2 100 2450 4.1 3.0 1

80 83.0 Stiff brown & gray clay w/fissures 44.0 78.2 112.6 100 3355

=0 C=1685*

5.1 0.0 2

80 83.0 Stiff brown & gray clay w/fissures 47.0 74.6 110.3 100 4250 4.1 0.5 3

80 83.0 Stiff brown & gray clay w/fissures 46.9 76.0 111.6 100 3425 4.1 1.0 4

80 83.0 Stiff brown & gray clay w/fissures 47.2 74.5 109.7 100 2820 4.1 1.0 5

80 83.0 Stiff brown & gray clay w/fissures 47.3 74.0 109.0 100 2405 5.1 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 45 of 56)

BORING 70 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 85 88.0 Medium stiff gray & tan clay w/clayey silt layers 30.0 93.7 121.8 100 2130

=4 C=430*

6.1 0.0 2

85 88.0 Medium stiff gray & tan clay w/clayey silt layers 30.4 91.4 119.2 97 1080 3.1 0.5 3

85 88.0 Medium stiff gray & tan clay w/clayey silt layers 29.6 91.9 119.1 97 1255 4.1 1.0 4

85 88.0 Medium stiff gray & tan clay w/clayey silt layers 29.9 92.8 120.5 98 1180 9.2 3.0 5

85 88.0 Medium stiff gray & tan clay w/clayey silt layer 29.5 94.6 122.5 100 1655 4.1 3.0 1

90 93.0 Stiff brown & gray fissured &

clay 43.3 79.1 113.4 100 2965

=0 C=1440*

4.1 0.0 2

90 Stiff brown & gray fissured &

clay 41.1 81.1 114.4 100 1870 2.0 0.5 3

90 93.0 Stiff brown & gray fissured &

clay 42.0 79.3 112.6 100 2205 3.1 0.5 4

90 93.0 Stiff brown & gray fissured &

clay 42.6 78.7 111.8 100 2705 4.1 1.0 5

90 93.0 Stiff brown & gray fissured &

clay 40.8 81.3 114.4 100 3140 7.1 3.0 1

94 97.0 Stiff tan & gray clay w/sand pockets 29.4 93.2 120.6 98 2030

=0 C=1010*

6.1 0.0 2

94 97.0 Stiff tan & gray clay w/sand pockets 37.8 84.8 116.9 100 1915 8.1 0.5 3

94 97.0 Stiff tan & gray clay w/sand pockets 35.9 85.6 116.3 100 2075 7.1 1.0 4

94 97.0 Stiff tan & gray clay w/sand pockets 36.8 85.0 116.3 100 2030 5.1 3.0 BORING 71 1

5 6.0 Stiff brown & gray silty clay w/sandy silt layers & lenses 22.2 96.2 117.6 79 2360

=6 C=1310*

4.1 0.0 2

5 6.0 Stiff brown & gray silty clay w/sandy silt layers & lenses 24.2 98.1 121.8 91 3025 5.1 0.5 3

5 6.0 Stiff brown & gray silty clay w/sandy silt layers & lenses 21.8 97.7 119.0 81 4145 11.2 1.0 4

5 6.0 Stiff brown & gray silty clay w/sandy silt layers & lenses 23.3 95.0 117.1 81 3745 6.1 2.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 46 of 56)

BORING 71 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 7

8.0 Medium stiff tan & gray clay w/silt lenses & pockets 30.5 90.7 118.4 95 2130

=4 C=995*

14.2 0.0 2

7 8.0 Medium stiff tan & gray clay w/silt lenses & pockets 30.3 91.3 119.0 96 1830 9.2 0.5 3

7 8.0 Medium stiff tan & gray clay w/silt lenses & pockets 22.8 97.9 120.2 82 2795 8.1 1.0 4

7 8.0 Medium stiff tan & gray clay w/silt lenses & pockets 22.5 97.4 119.3 83 2705 6.1 2.0 1

9 10.0 Medium stiff tan & gray silty clay w/clayey silt layers 24.9 96.6 120.6 90 2420

=4 C=1020*

6.1 0.0 2

9 10.0 Medium stiff tan & gray silty clay w/clayey silt layers 23.5 97.9 120.9 88 2045 5.0 0.5 3

9 10.0 Medium stiff tan & gray silty clay w/clayey silt layers 27.1 95.1 120.8 94 1930 11.0 1.0 4

9 10.0 Medium stiff tan & gray silty clay w/clayey silt layers 25.6 95.9 119.5 97 3040 6.0 2.0 1

9R 10.0 Remolded 24.2 96.0 119.2 88 2015

=7 C=750*

8.0 0.5 2

9R 10.0 Remolded 25.6 95.5 119.9 90 2215 20.0 1.0 3

9R 10.0 Remolded 24.5 95.9 119.4 87 2910 16.1 2.0 1

14 15.0 Soft tan & gray clay w/silt lenses 38.8 81.7 113.4 100 1600

=0 C=805*

11.2 0.0 2

14 15.0 Soft tan & gray clay w/silt lenses 33.6 89.0 118.9 100 1610 10.2 0.5 3

14 15.0 Soft tan & gray clay w/silt lenses 33.6 88.2 117.8 100 1325 6.1 1.0 4

14 15.0 Soft tan & gray clay w/silt lenses 34.0 87.7 117.5 100 1610 9.2 2.0 1

19 20.0 Very soft tan & gray silty clay w/clayer silt layers & trace of sand 30.1 91.7 119.3 96 905

=0 C=415*

12.2 0.0 2

19 20.0 Very soft tan & gray silty clay w/clayer silt layers & trace of sand 34.3 85.7 115.1 96 750 8.1 0.5 3

19 20.0 Very soft tan & gray silty clay w/clayer silt layers & trace of sand 33.3 86.7 115.5 96 490 9.2 1.0 4

19 20.0 Very soft tan & gray silty clay w/clayer silt layers & trace of sand 34.4 85.3 114.7 96 835 10.2 2.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 47 of 56)

BORING 71 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 19R 20.0 Remolded 32.7 85.4 113.3 91 185

=0 C=45*

8.0 0.5 19R 20.0 Remolded 32.7 86.0 113.8 92 86 5.0 1.0 3

19R 20.0 Remolded 33.0 85.2 113.8 92 130 10.0 2.0 1

23 24.0 Soft tan & gray silty clay w/clayer silt layers & trace of sand 29.2 93.9 121.3 99 1125

=0 C=290*

8.0 0.0 2

23 24.0 Soft tan & gray silty clay w/clayer silt layers & trace of sand 29.4 92.4 119.6 97 520 6.1 0.5 3

23 24.0 Soft tan & gray silty clay w/clayer silt layers & trace of sand 31.1 91.2 119.6 99 430 75.0 1.0 4

23 24.0 Soft tan & gray silty clay w/clayer silt layers & trace of sand 29.0 95.7 123.4 100 530 9.2 2.0 1

28 29.0 Soft gray clay with fissures 46.0 76.2 111.3 100 1410

=0 C=590*

9.2 0.0 2

28 29.0 Soft gray clay with fissures 41.5 78.1 110.6 97 805 6.0 0.5 3

28 29.0 Soft gray clay with fissures 41.1 78.3 110.5 96 1210 9.2 0.5 4

28 29.0 Soft gray clay with fissures 44.3 75.4 108.8 97 920 8.0 1.0 5

28 29.0 Soft gray clay with fissures 40.8 77.5 109.1 100 1210 10.0 2.0 1

28R 29.0 Remolded 39.6 78.0 108.9 92 1095

=0 C-455*

17.0 0.5 2

28R 29.0 Remolded 39.7 75.4 105.3 87 705 3.0 1.0 3

28R 29.0 Remolded 40.9 76.5 107.7 91 920 8.0 2.0 1

33 34.0 Soft gray silty clay w/clayer silt layers 33.2 88.5 117.9 99 1080

=0 C=460*

17.3 0.0 2

33 34.0 Soft gray silty clay w/clayer silt layers 34.4 87.0 116.9 100 1020 13.2 0.5 3

33 34.0 Soft gray silty clay w/clayer silt layers 34.8 87.5 118.0 100 720 10.2 1.0 4

33 34.0 Soft gray silty clay w/clayer silt layers 33.5 87.6 116.9 99 775 8.1 2.0 1

39 40.0 Medium stiff tan & gray clay w/few roots 43.1 77.4 110.8 98 1640

=0 C=820*

5.1 0.0 2

39 40.0 Medium stiff tan & gray clay w/few roots 33.4 83.2 111.0 89 1730 7.0 0.5 3

39 40.0 Medium stiff tan & gray clay w/few roots 40.5 78.5 110.3 95 1555 5.0 1.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 48 of 56)

BORING 71 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

4 39 40.0 Medium stiff tan & gray clay w/few roots 42.7 77.1 110.0 97 1600 6.0 2.0 1

39R 40.0 Remolded 40.0 78.8 110.3 95 1730

=0 C=890*

11.0 0.5 2

39R 40.0 Remolded 37.9 80.0 110.3 95 1845 5.0 1.0 3

39R 40.0 Remolded 40.7 77.0 108.3 93 1540 8.0 2.0 1

43 44.0 Medium stiff gray clay w/trace of organic matter & slickensides 60.8 63.8 102.6 100 1555

=0 C=805*

5.1 0.0 2

43 44.0 Medium stiff gray clay w/trace of organic matter & slickensides 57.0 66.0 103.0 99 1295 4.1 0.5 3

43 44.0 Medium stiff gray clay w/trace of organic matter & slickensides 60.0 64.0 102.4 98 1610 7.1 1.0 4

43 44.0 Medium stiff gray clay w/trace of organic matter & slickensides 57.8 66.9 105.5 98 1585 5.1 2.0 1

47 48.0 Medium stiff gray silty clay w/clayey silt layers 34.7 86.8 116.9 100 2405

=0 C=905*

11.2 0.0 2

47 48.0 Medium stiff gray silty clay w/clayey silt layers 32.9 86.3 114.8 94 1080 7.0 0.5 3

47 48.0 Medium stiff gray silty clay w/clayey silt layers 34.1 86.9 116.5 97 1885 9.0 1.0 4

47 48.0 Medium stiff gray silty clay w/clayey silt layers 32.8 85.9 114.1 93 1180 9.0 2.0 5

47 48.0 Medium stiff gray silty clay w/clayey silt layers 33.3 88.2 117.9 99 3170 15.3 2.0 1

47R 48.0 Remolded 33.6 84.5 112.9 92 230

=0 C=110*

10.0 0.5 2

47R 48.0 Remolded 30.8 87.8 114.8 90 215 8.0 1.0 3

47R 48.0 Remolded 32.3 84.5 111.7 88 86 1.5 2.0 1

54 55.0 Soft gray clay with silty sand lenses, pockets & shell fragments 51.6 70.5 106.8 100 1195

=0 C=315*

15.3 0.0 2

54 55.0 Soft gray clay with silty sand lenses, pockets & shell fragments 37.9 80.8 111.4 96 660 4.0 0.5 3

54 55.0 Soft gray clay with silty sand lenses, pockets & shell fragments 43.6 75.7 108.7 96 560 4.0 1.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 49 of 56)

BORING 71 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

4 54 55.0 Soft gray clay with silty sand lenses, pockets & shell fragments 41.0 77.3 109.0 94 750 6.0 2.0 60 61.0 Medium stiff gray clay w/fine sand lenses, pockets & trace of shells 41.2 80.0 113.9 100 1240

=0 C=590*

8.1 0.0 2

60 61.0 Medium stiff gray clay w/fine sand lenses, pockets & trace of shells 47.8 72.9 107.7 98 1180 7.0 0.5 3

60 61.0 Medium stiff gray clay w/fine sand lenses, pockets & trace of shells 47.7 72.9 107.6 99 880 7.0 1.0 4

60 61.0 Medium stiff gray clay w/fine sand lenses, pockets & trace of shells 46.2 73.0 106.7 96 1020 9.0 2.0 1

60R 61.0 Remolded 40.5 74.6 104.8 87 315

=0 C=115*

7.0 0.5 2

60R 61.0 Remolded 42.9 73.5 105.0 90 245 4.0 1.0 3

60R 61.0 Remolded 44.5 72.2 104.3 91 86 5.0 2.0 1

65 66.0 Medium stiff gray clay w/sand pockets 39.4 81.4 113.5 100 1730

=0 C=505*

12.2 0.0 2

65 66.0 Medium stiff gray clay w/sand pockets 41.2 79.3 112.0 98 920 6.1 0.5 3

65 66.0 Medium stiff gray clay w/sand pockets 40.0 81.2 113.7 100 1180 9.2 1.0 4

65 66.0 Medium stiff gray clay w/sand pockets 43.3 76.7 109.9 98 1010 6.1 2.0 1

70 71.0 Very stiff tan & gray clay w/fine sand lenses 19.7 108.7 130.1 96 5500

=0 C=2450*

9.2 0.0 2

70 71.0 Very stiff tan & gray clay w/fine sand lenses 20.0 109.1 130.9 100 4895 8.1 0.5 3

70 71.0 Very stiff tan & gray clay w/fine sand lenses 19.7 109.2 130.7 98 4375 7.1 1.0 4

70 71.0 Very stiff tan & gray clay w/fine sand lenses 20.3 106.8 128.5 95 2865 11.2 3.0 5

70 71.0 Very stiff tan & gray clay w/fine sand lenses 21.4 106.1 128.8 98 4925 10.2 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 50 of 56)

BORING 71 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 76 77.0 Very stiff tan & gray clay with concretions 29.3 93.2 120.5 98 3655

=0 C=1785*

13.2 0.0 2

76 77.0 Very stiff tan & gray clay with concretions 27.4 98.4 125.3 100 2330 5.1 0.5 3

76 77.0 Very stiff tan & gray clay with concretions 26.1 99.7 125.7 100 3540 9.2 1.0 4

76 77.0 Very stiff tan & gray clay with concretions 26.0 97.1 122.3 96 2565 8.1 3.0 76 77.0 Very stiff tan & gray clay with concretions 23.0 104.5 128.5 100 3530 5.1 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 51 of 56)

BORING 71 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 79 80.0 Medium stiff tan & gray clay w/clayey silt layers & concretions 27.5 97.9 124.8 100 1355

=0 C=790*

16.3 0.0 2

79 80.0 Medium stiff tan & gray clay w/clayey silt layers & concretions 26.5 99.2 125.4 100 1785 11.2 0.5 3

79 80.0 Medium stiff tan & gray clay w/clayey silt layers & concretions 26.7 98.7 125.1 100 1095 10.2 1.0 4

79 80.0 Medium stiff tan & gray clay w/clayey silt layers & concretions 25.4 100.0 125.4 100 2000 10.2 3.0 1

84 85.0 Very stiff tan & gray fissured clay w/silt lenses 34.1 86.9 116.5 97 4390

=0 C=2130*

7.1 0.0 2

84 85.0 Very stiff tan & gray fissured clay w/silt lenses 34.0 88.6 118.7 100 4205 6.1 0.5 3

84 85.0 Very stiff tan & gray fissured clay w/silt lenses 34.4 87.8 118.0 100 4235 6.1 1.0 4

84 85.0 Very stiff tan & gray fissured clay w/silt lenses 34.1 87.5 117.3 100 4480 6.1 3.0 1

89 91.0 Very stiff tan & gray fissured clay w/few concretions 42.4 78.8 112.1 100 4665

=0 C=2305 4.1 0.0 2

89 91.0 Very stiff tan & gray fissured clay w/few concretions 40.6 81.2 114.9 100 4955 5.1 0.5 3

89 91.0 Very stiff tan & gray fissured clay w/few concretions 40.5 80.3 112.8 99 4105 4.1 1.0 4

89 91.0 Very stiff tan & gray fissured clay w/few concretions 39.1 81.9 113.9 100 5010 5.1 3.0 1

100 102.0 Stiff gray & tan fissured clay 47.7 74.3 109.7 100 3700

=0 C=1815*

6.1 0.0 2

100 102.0 Stiff gray & tan fissured clay 46.4 75.6 110.7 100 3415 4.1 0.5 3

100 102.0 Stiff gray & tan fissured clay 47.1 74.8 110.0 100 3630 4.1 1.0 4

100 102.0 Stiff gray & tan fissured clay 44.1 76.9 108.8 100 2420 2.5 1.0 5

100 102.0 Stiff gray & tan fissured clay 38.5 82.0 113.6 100 4220 5.1 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 52 of 56)

BORING 72 Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 3

5.0 Soft tan & gray silty clay with clayey silt pockets 31.5 86.4 113.6 90 720

=0 C=260*

8.1 0.0 2

3 5.0 Soft tan & gray silty clay with clayey silt pockets 30.0 87.5 113.8 88 460 8.1 0.5 3

3 5.0 Soft tan & gray silty clay with clayey silt pockets 29.7 88.3 114.5 88 560 7.1 1.0 4

3 5.0 Soft tan & gray silty clay with clayey silt pockets 34.2 83.5 112.1 91 405 14.2 2.0 1

15 17.0 Medium stiff tan & gray clay w/silt pockets 32.3 89.3 118.1 98 1815

=0 C=820*

18.3 0.0 2

15 17.0 Medium stiff tan & gray clay w/silt pockets 31.6 91.6 120.8 100 1640 14.2 0.5 3

15 17.0 Medium stiff tan & gray clay w/silt pockets 35.5 85.0 115.1 98 1295 13.2 1.0 4

15 17.0 Medium stiff tan & gray clay w/silt pockets 34.5 87.2 117.3 100 1555 11.2 2.0 1

20 22.0 Loose tan & gray clayey silt with trace of fine sand 31.7 91.5 120.5 100 1615

=0 C=430*

9.2 0.0 2

20 22.0 Loose tan & gray clayey silt with trace of fine sand 31.4 90.9 119.4 98 1685 10.2 0.5 3

20 22.0 Loose tan & gray clayey silt with trace of fine sand 31.3 92.0 120.8 100 1485 10.2 1.0 4

20 22.0 Loose tan & gray clayey silt with trace of fine sand 29.9 921.2 119.8 98 2965 12.2 1.0 5

20 22.0 Loose tan & gray clayey silt with trace of fine sand 30.7 91.4 119.5 97 3355 15.3 2.0 1

38 41.0 Medium stiff gray clay w/few partings 42.9 78.1 111.6 100 1870

=0 C=905*

6.1 0.0 2

38 41.0 Medium stiff gray clay w/few partings 39.4 82.3 114.7 100 2245 8.1 0.5 3

38 41.0 Medium stiff gray clay w/few partings 41.6 79.6 112.7 100 1815 6.1 1.0 4

38 41.0 Medium stiff gray clay w/few partings 41.3 79.1 111.8 98 1700 5.1 2.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 53 of 56)

BORING 72 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 43 46.0 Medium stiff gray clay w/clayey silt lenses & layers 41.4 79.3 112.1 99 1600

=0 C=690*

11.2 0.0 2

43 46.0 Medium stiff gray clay w/clayey silt lenses & layers 42.4 78.6 111.9 99 1255 6.1 0.5 3

43 46.0 Medium stiff gray clay w/clayey silt lenses & layers 41.4 79.2 112.0 99 1440 8.1 1.0 4

43 46.0 Medium stiff gray clay w/clayey silt lenses & layers 44.9 76.5 110.8 100 1165 6.1 2.0 1

50 53.0 Medium stiff gray clay w/sand lenses & shell fragments 37.0 81.8 112.1 95 1255

=0 C=605*

8.1 0.0 2

50 53.0 Medium stiff gray clay w/sand lenses & shell fragments 39.1 81.2 112.9 100 1210 9.1 0.5 3

50 53.0 Medium stiff gray clay w/sand lenses & shell fragments 37.2 82.6 113.3 98 1370 9.1 1.0 4

50 53.0 Medium stiff gray clay w/sand lenses & shell fragments 38.0 81.4 112.3 97 1265 7.1 2.0 1

53 56.0 Medium stiff gray clay w/sand lenses & shells 38.2 82.7 114.3 100 1380

=0 C=690*

8.1 0.0 2

53 56.0 Medium stiff gray clay w/sand lenses & shells 33.2 87.1 116.0 98 995 7.1 0.5 3

53 56.0 Medium stiff gray clay w/sand lenses & shells 41.3 78.6 111.1 97 1050 7.1 0.5 4

53 56.0 Medium stiff gray clay w/sand lenses & shells 40.8 78.7 110.8 96 1020 9.2 1.0 5

53 56.0 Medium stiff gray clay w/sand lenses & shells 38.1 80.8 111.6 97 1265 6.0 1.0 6

53 56.0 Medium stiff gray clay w/sand lenses & shells 31.4 89.6 117.7 96 1615 7.1 2.0 1

56 59.0 Soft gray clay with many clayey sand lenses, pockets & shell fragments 35.9 85.4 116.1 100 820

=0 C=405*

8.1 0.0 2

56 59.0 Soft gray clay with many clayey sand lenses, pockets & shell fragments 37.8 82.6 113.8 99 790 8.1 0.5 3

56 59.0 Soft gray clay with many clayey sand lenses, pockets & shell fragments 36.4 85.1 116.1 100 1095 8.1 1.0 4

56 59.0 Soft gray clay with many clayey sand lenses, pockets & shell fragments 38.2 82.5 114.0 199 965 12.2 2.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 54 of 56)

BORING 72 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 62 65.0 Medium stiff gray clay w/sand pockets & trace of shells 55.1 68.0 105.4 100 1830

=0 C=865*

10.2 0.0 2

62 65.0 Medium stiff gray clay w/sand pockets & trace of shells 54.5 68.6 105.9 100 1755 8.0 0.5 3

62 65.0 Medium stiff gray clay w/sand pockets & trace of shells 55.6 67.6 105.2 100 1685 10.2 1.0 4

62 65.0 Medium stiff gray clay w/sand pockets & trace of shells 55.0 67.5 104.6 99 1700 8.1 2.0 1

66 69.0 Medium stiff gray clay w/sand pockets & decayed shells 37.6 79.6 109.5 89 1470

=0 C=835*

6.1 0.0 2

66 69.0 Medium stiff gray clay w/sand pockets & decayed shells 44.7 76.2 110.3 99 1670 8.1 0.5 3

66 69.0 Medium stiff gray clay w/sand pockets & decayed shells 46.3 74.6 109.1 100 1555 7.1 1.0 4

66 69.0 Medium stiff gray clay w/sand pockets & decayed shells 45.9 74.7 109.0 99 1900 8.1 2.0 1

71 74.0 Stiff tan & gray clay w/

concretions & fissures 22.4 103.5 126.7 97 3860

=0 C=1870*

9.2 0.0 2

71 74.0 Stiff tan & gray clay w/

concretions & fissures 21.2 106.6 129.2 97 3655 6.1 0.5 3

71 74.0 Stiff tan & gray clay w/

concretions & fissures 21.6 105.4 128.2 98 3715 6.1 1.0 4

71 74.0 Stiff tan & gray clay w/

concretions & fissures 21.8 104.8 127.6 96 3815 7.1 3.0 1

74 77.0 Stiff tan & gray clay w/

concretions & fissures 29.1 94.2 121.6 100 3530

=0 c=1730*

7.1 0.0 1

74 77.0 Stiff tan & gray clay w/

concretions & fissures 30.1 93.2 121.3 100 3760 5.1 0.5 3

74 77.0 Stiff tan & gray clay w/

concretions & fissures 27.1 95.2 121.0 95 3530 8.1 1.0 4

74 77.0 Stiff tan & gray clay w/

concretions & fissures 25.1 96.7 121.6 91 4375 5.1 3.0 1

80 85.0 Stiff tan & gray fissured clay w/silt lenses 37.0 84.5 115.8 100 3685

=0 C=1885*

10.0 0.0 2

80 85.0 Stiff tan & gray fissured clay w/silt lenses 32.6 90.6 120.1 100 3225 7.1 0.5 3

80 85.0 Stiff tan & gray fissured clay w/silt lenses 35.7 84.8 115.1 98 3385 6.0 0.5

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 55 of 56)

BORING 72 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

4 80 85.0 Stiff tan & gray fissured clay w/silt lenses 36.5 85.2 116.3 100 3830 9.0 1.0 5

80 85.0 Stiff tan & gray fissured clay w/silt lenses 37.1 85.0 116.5 100 3630 7.0 3.0 1

84 89.0 Stiff tan & gray fissured clay 42.6 78.7 112.2 100 1730

=0 C=1440*

3.0 0.0 2

84 89.0 Stiff tan & gray fissured clay 40.7 79.8 112.3 98 3760 6.0 0.0 3

84 89.0 Stiff tan & gray fissured clay 39.4 82.0 114.3 100 3065 5.0 0.5 4

84 89.0 Stiff tan & gray fissured clay 40.5 80.4 113.0 100 2665 5.0 1.0 5

84 89.0 Stiff tan & gray fissured clay 39.3 81.8 113.9 100 3540 6.0 3.0 1

90 95.0 Stiff tan & gray fissured clay with silt pockets & decayed shells 36.2 84.0 114.4 98 3340

=0 C=1845*

2.5 0.0 2

90 95.0 Stiff tan & gray fissured clay with silt pockets & decayed shells 33.1 87.3 116.2 97 3685 2.5 0.0 3

90 95.0 Stiff tan & gray fissured clay with silt pockets & decayed shells 34.2 86.3 115.8 98 3960 3.0 0.5 4

90 95.0 Stiff tan & gray fissured clay with silt pockets & decayed shells 43.3 74.4 106.6 92 3370 2.0 1.0 5

90 95.0 Stiff tan & gray fissured clay with silt pockets & decayed shells 35.2 85.5 115.6 98 3800 3.0 1.0 6

90 95.0 Stiff tan & gray fissured clay with silt pockets & decayed shells 39.3 81.0 112.8 100 4235 3.0 3.0 1

94 99.0 Stiff tan & gray fissured clay 27.8 96.6 123.5 100 3960

=0 C=1975*

2.5 0.0 2

94 99.0 Stiff tan & gray fissured clay 36.2 84.6 115.2 100 3400 4.0 0.5 3

94 99.0 Stiff tan & gray fissured clay 29.9 91.5 118.8 96 3860 4.0 1.0 4

94 99.0 Stiff tan & gray fissured clay 29.5 90.0 116.6 91 4375 5.0 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-1 (Sheet 56 of 56)

BORING 72 (Contd)

Unconsolidated Undrained Triaxial Sheat Tests Natural Confined Strain Water Density Compressive in Percent Confining Test Sample Depth Content (lb/cu ft.)

Degree Strength Shear at Maximum Pressure No.

No.

(ft.)

Classification Percent Dry Wet Saturation (lb/sq. ft.)

Values Stress (Tons/sq. ft.)

1 101 106.0 Stiff tan & gray clay w/sandy clay layers & pockets 33.8 86.3 115.5 97 2345

=0 C=1165*

8.0 0.0 2

101 106.0 Stiff tan & gray clay w/sandy clay layers & pockets 31.4 89.3 117.3 96 2275 7.0 0.5 3

101 106.0 Stiff tan & gray clay w/sandy clay layers & pockets 32.8 88.0 116.9 97 2330 7.0 1.0 4

101 106.0 Stiff tan & gray clay w/sandy clay layers & pockets 31.9 88.5 116.7 96 2650 9.0 3.0

WSES-FSAR-UNIT-3 TABLE 2.5A-2

SUMMARY

OF LABORATORY PERMEABILITY TESTS Water Water Content Content Percent Dry Coefficient of Boring Sample Depth Before Test After Density Permeability No.

No.

ft.

Classification (Percent)

Test (pcf)

Cms./Second 18 9

30.0 Loose gray silty fine sand w/trace of organic matter 30.4 32.1 89.4 6.0 x 10-5 30 27 89.5 Tan & gray silty sand 23.8 23.0 98.7 2.1 x 10-5 35 10 33.0 Tan & gray silty sand 24.5 24.1 93.8 4.6 x 10-5 51 23 98.5 Tan & gray silty fine sand 22.6 99.8 0.41 x 10-5 53 7

28.0 Loose gray sandy silt 32.5 91.2 3.6 x 10-5 59 77 98.5 Loose tan & gray silty fine sand 23.9 101.0 2.9 x 10-5 61 25 98.5 Loose tan & gray silty fine sand w/trace of clay 22.1 100.5 0.43 x 10-5

WSES-FSAR-UNIT-3 TABLE 2.5A-3 COEFFICIENT OF PERMEABILITY COMPUTED FROM CONSOLIDATION DATA BORING 51 Sample Depth Load Coefficient of Permeability No.

(ft.)

(Tons/sq. ft.)

Cms./Second x 10-8 16 69.0 3.2 0.11 Vertical 6.4 0.08 12.8 0.05 25.6 0.02 27.0 0.008 BORING 59 21 25.0 1.6 137.6 Horizontal 3.2 97.0 6.4 120.4 12.8 23.1 20.0 18.2 22 26.0 1.6 109.3 Vertical 3.2 152.7 6.4 38.4 12.8 30.9 20.0 8.3 38 50.0 1.6 2.0 Horizontal 3.2 0.8 6.4 0.5 12.8 0.2 38 50.0 0.8 2.4 Vertical 1.6 3.2 3.2 0.5 6.4 0.7 12.8 0.2

WSES-FSAR-UNIT-3 TABLE 2.5A-4

SUMMARY

OF ORGANIC CONTENT DATA BORING 44 Sample Depth Organic Content No.

(ft.)

Classification (Percent) 60 214.5 Very still greenish-gray clay w/silt pockets & some organic matter 4.70 61 217.5 Very stiff greenish-gray clay w/silt pockets & some organic matter 5.05 63 224.5 Very stiff gray clay w/some organic matter 6.63 64 227.5 Very stiff gray clay w/some organic matter 4.70 BORING 52 51 124.0 Stiff gray clay w/roots, organic matter & sand layers 10.30 BORING 55 84 124.0 Medium stiff gray clay w/shell fragments & organic clay layers 8.12 85 124.5 Stiff gray clay w/organic matter 6.61 86 127.5 Stiff gray clay w/roots & organic matter 3.22 87 128.0 Stiff gray organic clay w/roots 15.83 89 129.0 Stiff gray organic clay w/roots 10.75 BORING 56 53 124.5 Stiff dark gray clay w/organic matter 11.10 BORING 67 50 119.5 Stiff gray clay w/shell lenses &

organic matter 6.90

WSES-FSAR-UNIT-3 TABLE 2.5A NOTES ON TABLES

=

Angle of internal friction in degrees.

C

=

Cohesion in pounds per square foot.

LL

=

Liquid Limit in percent.

PL

=

Plastic Limit in percent.

PI

=

Plasticity Index in percent.

• Indicates quick triaxial shear test (Unconsolidated Undrained).

• • Indicates quick direct shear test (Unconsolidated Undrained).

+

=

Indicates 1.4 in. diameter test specimen.

++

=

Indicates four in. diameter test specimen.

+++

=

Indicates two in. diameter test specimen.

V

=

Indicates unconfined compression test in the vertical direction.

H

=

Indicates unconfined compression test in the horizontal direction.

R

=

Indicates remolded test specimen.