BORING LOG Boring ID: SB1B - lockheedmartin.com fileLog OVA (ppm, BZ = breathing zone) LMC Beaumont Site 2 Date Boring Started: Date Boring Completed: 31-Oct-2007 31-Oct-2007 David

Page 1 of 2 Project: 31.5 feet bgs Sampling Method: Split-Spoon Location: 8 inches with Hydraulic Hammer and Brass Sleeves Project No.: WDC Exploration Logged By:

Hollow-Stem Auger

Depth(feet bgs) Recovery

Blow Counts Time

Sample No. USCS

Graphic Log

OVA (ppm, BZ = breathing zone)

Surface: grass/topsoil.

Geology from boring SB1 SP-SM 0 to 5 feet bgs. POORLY GRADED SAND WITH SILT: (10 YR

5/4) yellowish brown, dry, poorly graded, 90% very loose,

subrounded, very fine to fine-grained sand, 10% nonplastic

fines, no odor or staining observed.

SM 5 to 6.5 feet bgs. SILTY SAND: (10 YR 6/4 to 2.5 Y 6/1) light

yellowish brown to gray, dry, poorly graded, 80% medium dense,

subrounded, very fine to fine-grained sand, 20% nonplastic fines,

trace friable cobbles (weathered San Timoteo SANDSTONE at

bottom of shoe), maximum size > 3 inches, no odor.

Sample collected in brass sleeves with 2 1/2 inch split-spoon sampler

using hydraulic hammer for geotechnical testing.7 1230 SB1-10-10. SM/SC 10 to 11.5 feet bgs. SILTY/CLAYEY SAND: (10 YR 5/4 - 8/2)

9 SB1-10.5-11' yellowish brown to very pale brown, dry, poorly graded, 70%

9 loose to medium dense, subrounded, very fine to fine-grained sand,30% fines with no to low plasticity, trace hard, fine gravel,

maximum size = 3/8 inches, no odor.

SM 15 to 18 feet bgs. SILTY SAND: (10 YR 6/4) light yellowish

brown, dry, poorly graded, 80% dense, subrounded, very fine to

medium-grained sand, 20% nonplastic fines, no odor.

Transition zone at 18 feet bgs. Weathered San Timoteo formation

redeposited as alluvium. Sample SB1-18' collected above contact.

SM 18 to 25.5 feet bgs. SILTY SAND: (10 YR 5/4 to 2.5 Y 6/3)

yellowish brown to light yellowish brown, dry, poorly graded,

70% dense to very dense, subrounded, very fine to fine-grained

sand, 30% nonplastic fines, no odor.

LMC Beaumont Site 2

Date Boring Started: Date Boring Completed: 31-Oct-2007

31-Oct-2007David Bertolacci19892-03Former Discharge Ponds

---- 19 ----

---- 18 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 13 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

---- 6 ----

---- 7 ----

---- 8 ----

---- 9 ----

---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

BORING LOGBoring ID: SB1B

---- 0 ----

---- 1 ----

Borehole Depth: Borehole Diameter: Drilling Contractor:

Drilling Method:

Interval and Lithologic Description

Northing (feet): Easting (feet): Ground Surface Elevation (feet MSL): Top of Casing Elevation (feet MSL):

100%

---- 20 ----

Page 2 of 2 Project: 31.5 feet bgs Sampling Method: Split-Spoon Location: 8 inches with Hydraulic Hammer and Brass Sleeves Project No.: WDC Exploration Logged By:

Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2





Drilling Method:



SM SILTY SAND: As above.

Weathered San Timoteo contact at 25.5 feet bgs.

ss/slst 25.5 to 30 feet bgs. SANDSTONE WITH SILTSTONE/CLAYSTONE:

(SP-SM/SC) (2.5 Y 6/2) light brownish gray, dry, poorly graded, friable, 90% very

dense, subrounded, very fine to fine-grained sand, 10% very stiff,

fines with no to low plasticity, no odor, weak cementation, interbedded

SANDSTONE and SILTSTONE layering.

100 1320 SB1-30 - 30.5' 30 to 31.5 feet bgs. SANDSTONE WITH SILTSTONE/CLAYSTONE: As above.

200 SB1-30.5 - 31' Sample collected in brass sleeves with 2 1/2 inch split-spoon sampler using hydraulic hammer for geotechnical testing.

Total Depth = 31.5 feet bgs.

Geotechnical samples collected on 31-Oct 2007 via hydraulic hammer

Borehole backfilled with Portland Type II/V cement and Volclay

Grout slurry from bottom up using tremie pipe.

---- 20 ----

---- 28 ----

---- 29 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 32 ----

---- 33 ----

---- 30 ----

---- 31 ----

100%

---- 40 ----

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 34 ----

---- 35 ----

Page 1 of 4 Project: 70 feet bgs Sampling Method: Split-Spoon Location: 10 inches Project No.: WDC Exploration Logged By:

Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



5 SM 0 to 1.5 feet bgs. SILTY SAND: (10 YR 6/4) light yellowish

5 1448 SB4-0.5' brown, dry, poorly graded, 80% loose, subrounded, very fine

5 to fine-grained sand, 20% nonplastic fines, trace hard, subangular,

fine gravel, maximum size = 3/8 inch, no staining or odor.

5 1452 SB4-5' SM/SC 5 to 6.5 feet bgs. SILTY/CLAYEY SAND: (10 YR 5/4) yellowish

7 1453 SB4-5'-DUP brown, dry, poorly graded, 80% loose, subrounded, very fine to

9 fine-grained sand, 20% fines with no to low plasticity, trace friable

to hard, subangular, fine to coarse gravel, maximum size = 3/4 inch,

no odor.

9 1500 SB4-10' SM 10 to 13 feet bgs. SILTY SAND: (10 YR 5/4) yellowish brown,

11 damp, poorly graded, 80% loose, subrounded, very fine to coarse-

13 grained sand, 20% nonplastic fines, trace friable to hard, subangular,15 coarse gravel, maximum size = 2 inches, no odor, granitic mineralogy.

20 Increasing coarse sand at 10 feet bgs, gravel zone at 11.5 feet bgs.

20 Weathered San Timoteo formation contact at 13 feet bgs.

12 ss 13 to 15 feet bgs. SANDSTONE WITH SILT: (2.5 Y 6/2) light

14 brownish gray, dry, poorly graded, 90% medium dense,

16 subrounded, very fine to fine-grained sand, 10% nonplastic

20 fines, no odor.

25 1508 SB4-15' slst 15 to 16 feet bgs. SILTSTONE: (2.5 Y 5/2) grayish brown, damp,

25 poorly graded, 50% medium dense to dense, subrounded, very

fine to fine-grained sand, 50% nonplastic fines, no odor, weak

cementation, weathered San Timoteo Formation.

100%

100%

100%

100%

100%

100%

---- 20 ----


BORING LOGBoring ID: SB4

---- 0 ----

---- 1 ----


Drilling Method:


---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

---- 6 ----

---- 7 ----

---- 8 ----

---- 9 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 13 ----

---- 19 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

---- 18 ----

LMC Beaumont Site 2




Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



43 1518 SB4-20' slst 20 to 21.5 feet bgs. SANDSTONE/SILTSTONE: (2.5 Y 5/2)

50 grayish brown, damp, poorly graded, 50% dense to very dense,


no odor, weak cementation.

35 1523 SB4-25' slst 25 to 26.5 feet bgs. SANDSTONE/SILTSTONE: (2.5 Y 5/2)

50 grayish brown, damp, poorly graded, 50% dense to very dense,


no odor, weak cementation.

33% 75/6" 1530 SB4-30' ss 30 to 31.5 feet bgs. SANDSTONE: (2.5 Y 6/4) light yellowish

brown, dry to damp, poorly graded, 95% very dense,


fines, no odor, weak cementation, platy bedding layers.

33% 80/6" 1537 SB4-35' ss/slst 35 to 36.5 feet bgs. SANDSTONE WITH SILT: (2.5 Y 6/4) light

yellowish brown, dry to damp, poorly graded, 90% very dense,



Increasing fines.

50%

100%

---- 40 ----

---- 32 ----

---- 33 ----

---- 30 ----

---- 31 ----

---- 36 ----

---- 37 ----

---- 34 ----

---- 35 ----

---- 38 ----

---- 39 ----

---- 28 ----

---- 29 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 20 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



33% 80/6" 1548 SB4-40' ss 40 to 40.5 feet bgs. SANDSTONE: (2.5 Y 6/4) light

yellowish brown, moist, poorly graded, 95% very dense,



Decreasing fines.

33% 80/6" 1600 SB4-45' ss/slst 45 to 45.5 feet bgs. SANDSTONE WITH SILT: (2.5 Y 6/4) light

yellowish brown, moist, poorly graded, 90% very dense,



Increasing fines.

* Hole dry at 50 feet bgs. On 26-Oct 2007, left open, moist soil in

bottom of hole at 48.6 feet bgs on 29-Oct 2007, no freestanding

water for sampling, instruct drillers to drill to 55 feet bgs.15% 80/4" 1602 SB4-50' ss/slst 50 to 50.5 feet bgs. SILTY SANDSTONE: (2.5 Y 5/3) light

olive brown, moist, poorly graded, 80% very dense,



Increasing fines.

* Continue drilling on 30-Oct 2007.

25 1610 SB4-55' ss/slst 55 to 56.5 feet bgs. SILTY SANDSTONE: (2.5 Y 5/3) light

50 30-Oct-2007 olive brown, dry to damp, poorly graded, 80% medium dense to

very dense, subrounded, very fine to fine-grained sand, 20%

nonplastic fines, no odor, weak cementation, platy bedding layers.

67%

---- 49 ----

---- 50 ----

---- 47 ----

---- 60 ----

---- 55 ----

---- 56 ----

---- 54 ----

---- 51 ----

---- 52 ----

---- 53 ----

---- 59 ----

---- 57 ----

---- 58 ----

---- 48 ----

---- 45 ----

---- 46 ----

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 40 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



30 1620 SB4-60' ss/slst 60 to 61 feet bgs. SILTY SANDSTONE: (2.5 Y 6/4 to 5/2) light

50 1625 SB4-60'-DUP yellowish brown to grayish brown, dry to damp, poorly graded,

ss 80% dense to very dense, subrounded, very fine to fine-grained

sand, 20% nonplastic fines, no odor, weak cementation, platy

bedding layers; at 61 feet bgs. grayish brown SANDSTONE,

decreasing fines, micaceous, increasing sand grain size.

15% 100/6" 1627 SB4-65' ss 65 to 65.5 feet bgs. SANDSTONE: (2.5 Y 5/2) grayish brown,

moist, poorly graded, 100% very dense, subrounded, fine to

0916 SB4-66' medium-grained sand, trace nonplastic fines, no odor, weak

(Water sample collected 31-Oct-2007) cementation.

1st water at approximately 66 feet bgs (measured in open borehole

on 31-Oct 2007 at 0800).

* Running sand noted in cuttings between 65 and 70 feet bgs.

70 to 70.5 feet bgs. SANDSTONE: (2.5 Y 5/2) grayish brown,

wet, poorly graded, 100% very dense, subrounded, fine to

medium-grained sand, trace nonplastic fines, no odor, weak 15% 100/6" 1636 SB4-70' ss cementation, high degree of weathering.

Total Depth = 70 feet bgs.

Borehole left open to let water accumulate, water samplecollected on 31-Oct 2007 via bailer and borehole backfilled

with Portland Type II/V cement and Volclay Grout slurry using

tremie pipe from bottom of borehole.

67%---- 60 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 73 ----

---- 74 ----

---- 75 ----

---- 76 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 61 ----

---- 62 ----

---- 63 ----

---- 64 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



Geology from boring SB4 SM 0 to 1.5 feet bgs. SILTY SAND: (10 YR 6/4) light yellowish

brown, dry, poorly graded, 80% loose, subrounded, very fine

to fine-grained sand, 20% nonplastic fines, trace hard, subangular,


5 1450 SB4-5-5.5' SM/SC 5 to 6.5 feet bgs. SILTY/CLAYEY SAND: (10 YR 5/4) yellowish

5 SB4-5.5-6' brown, dry, poorly graded, 80% loose, subrounded, very fine to

7 fine-grained sand, 20% fines with no to low plasticity, trace friable

to hard, subangular, fine to coarse gravel, maximum size = 3/4 inch,

no odor.

SM 10 to 13 feet bgs. SILTY SAND: (10 YR 5/4) yellowish brown,

damp, poorly graded, 80% loose, subrounded, very fine to coarse-

grained sand, 20% nonplastic fines, trace friable to hard, subangular,coarse gravel, maximum size = 2 inches, no odor, granitic mineralogy.

Increasing coarse sand at 10 feet bgs, gravel zone at 11.5 feet bgs.

Weathered San Timoteo formation contact at 13 feet bgs.

ss 13 to 15 feet bgs. SANDSTONE WITH SILT: (2.5 Y 6/2) light

brownish gray, dry, poorly graded, 90% medium dense,


fines, no odor.0% Slough at 15 feet bgs. slst 15 to 17 feet bgs. SILTSTONE: (2.5 Y 5/2) grayish brown, damp,

>100 1500 SB4-15.5-16' poorly graded, 50% medium dense to dense, subrounded, very

SB4-16-16.5' fine to fine-grained sand, 50% nonplastic fines, no odor, weakcementation, weathered San Timoteo Formation.

Total Depth = 17 feet bgs.

Geotechnical samples collected on 31-Oct 2007 via hydraulic hammer

and borehole backfilled with Portland Type II/V cement and Volclay

Grout slurry using tremie pipe from bottom of borehole.

LMC Beaumont Site 2



---- 11 ----

---- 12 ----

---- 13 ----

---- 19 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

---- 18 ----

---- 7 ----

---- 8 ----

---- 9 ----

---- 10 ----

Top of Casing Elevation (feet MSL):


---- 0 ----


Drilling Method:


Northing (feet): Easting (feet): Ground Surface Elevation (feet MSL):

100%

100%

---- 20 ----

---- 1 ----

---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

---- 6 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



10 SM 0 to 1.5 feet bgs. SILTY SAND: (10 YR 5/3) brown, dry,

10 1233 SB5-0.5' poorly graded, 80% loose, subrounded, very fine to fine-grained

8 sand, 20% nonplastic fines, trace friable to hard, subangular,

fine gravel, maximum size = 1/4 to 3/8 inch, no staining or odor.

5 1240 SB5-5' SM 5 to 6.5 feet bgs. SILTY SAND: (10 YR 5/4) yellowish brown,

5 dry, poorly graded, 75% loose, subrounded, very fine to fine-

7 grained sand, 15% nonplastic fines, trace hard, subangular,

fine gravel, maximum size = 1/4 to 3/8 inch, no staining or odor.

7 1243 SB5-10' SM 10 to 11.5 feet bgs. SILTY SAND: (10 YR 5/4) yellowish brown,

7 dry, poorly graded, 80% loose, subrounded, very fine to fine-

7 grained sand, 20% nonplastic fines, trace friable, subangular,fine gravel, maximum size = 1/4 inch, no staining or odor.

7 1245 SB5-15' SM 15 to 16.5 feet bgs. SILTY SAND: (10 YR 6/4) light yellowish

9 brown, dry, poorly graded, 85% loose to medium dense,

11 subrounded, very fine to medium-grained sand, 15% nonplastic

fines, no odor.

LMC Beaumont Site 2


25-Oct-2007

---- 19 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 9 ----

---- 17 ----

---- 18 ----

---- 12 ----

---- 13 ----


---- 0 ----

---- 1 ----

Borehole Depth: Borehole Diameter:

David Bertolacci19892-03Former Discharge Ponds

---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

---- 11 ----

Easting (feet): Ground Surface Elevation (feet MSL): Top of Casing Elevation (feet MSL):

---- 20 ----

Drilling Contractor:

Drilling Method:


---- 10 ----

---- 6 ----

---- 7 ----

---- 8 ----

Northing (feet):

100%

100%

50%

100%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2


25-Oct-2007






Drilling Method:


Northing (feet):

15 1249 SB5-20' SP-SM 20 to 27.5 feet bgs. POORLY GRADED SAND WITH SILT:

15 (10 YR 6/4 to 5/4) light yellowish brown to yellowish brown,

20 dry to damp, poorly graded, 90% medium dense, subrounded,

12 very fine to medium-grained sand, 10% nonplastic fines, trace

13 friable to hard, subrounded to subangular, fine gravel, maximum

15 size = 1/2 inch, no odor.

14

16

18

16

18 1255 SB5-25' SP-SM POORLY GRADED SAND WITH SILT: As above.

22

18 Fine-grained sand stringer, followed by increasing gravel (5-10%)

23 and coarse-grained sand from 26 to 27 feet bgs.

25 SP-SC 27 to 30.5 feet bgs. POORLY GRADED SAND WITH CLAY:

12 As above, increasing fines with low plasticity at 27.5 feet bgs.

12

20

17

19 Sampled directly above contact Increasing gravel at 30 feet bgs.21 1315 SB5-30' Weathered San Timoteo Formation contact at 30.5 feet bgs.

20 ss 30.5 to 33.5 feet bgs. SANDSTONE: (2.5 Y 6/3) light yellowish

23 ss/slst brown, damp, poorly graded, 95% dense, subrounded, very fine to

25 fine-grained sand, 5% nonplastic fines, no odor; weak cementation,

45 increasing silt and clay nodules at 31 feet bgs (to 25%); interbedded

50 SANDSTONE and SILTSTONE through 33.5 feet bgs.

40 1339 SB5-35' ss 35 to 36.5 feet bgs. SANDSTONE: (2.5 Y 6/2) light brownish gray,

50 damp to moist, poorly graded, 100% dense to very dense,

subrounded, very fine to fine-grained sand, no odor, weak

cementation, augers grinding at approximately 35 feet bgs and

cuttings steaming.

---- 20 ----

---- 21 ----

---- 26 ----

100%

100%

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 30 ----

---- 31 ----

---- 28 ----

---- 29 ----

---- 34 ----

---- 35 ----

---- 32 ----

---- 33 ----

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 40 ----

100%

100%

67%

67%

100%

100%

100%

100%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2


25-Oct-2007






Drilling Method:


Northing (feet):

43 1349 SB5-40' ss/slst 40 to 41.5 feet bgs. SILTY SANDSTONE: (2.5 Y 6/2 to 4/2)

50 light to dark brownish gray, damp to moist, poorly graded, 80%


nonplastic fines, weak cementation, no odor, color change to dark

brownish gray at 41 feet bgs.

* Augers grinding from 45 to 50 feet bgs.

40 1400 SB5-45' ss/slst 45 to 46.5 feet bgs. SANDSTONE WITH SILT: (2.5 Y 6/2 to 4/2)

50 +MS/MSD light to dark brownish gray, damp to moist, poorly graded, 90%


nonplastic fines, weak cementation, no odor, decreasing fines.

15% 80/3" 1400 SB5-50' ss/slst 50 to 50.5 feet bgs. SANDSTONE WITH SILT: (2.5 Y 6/2 to 4/2)

light to dark brownish gray, damp, poorly graded, 90%


nonplastic fines, weak cementation, no odor.

* Stop drilling at 50 feet bgs to let water accumulate on 10/25/2007,

hole dry on 10/26/2007 and 10/29/2007, resume drilling 10/29/2007.

45 1015 SB5-55' ss 55 to 56.5 feet bgs. SANDSTONE: (2.5 Y 6/3) light yellowish

50 10/29/2007 brown, damp, poorly graded, 100% very dense, subrounded, very

fine to fine-grained sand, weak cementation, no odor.

45 0800 SB5-58' (water) 1st water at 58.42 feet bgs on 10/30/2007.

50 10/30/2007

67%

100%

50%

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 40 ----

---- 47 ----

---- 48 ----

---- 45 ----

---- 46 ----

---- 54 ----

---- 51 ----

---- 52 ----

---- 49 ----

---- 50 ----

---- 57 ----

---- 58 ----

---- 60 ----

---- 59 ----

---- 55 ----

---- 56 ----

---- 53 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2


25-Oct-2007






Drilling Method:


Northing (feet):

15% 70/6" 1020 SB5-60' ss/slst 60 to 60.5 feet bgs. SANDSTONE: (2.5 Y 6/2)

light to dark brownish gray, damp, poorly graded, 95%


hard, angular, coarse gravel, maximum size = 3/4 inch, weak

cementation, no odor.

Total Depth = 60.5 feet bgs, let sit overnight for groundwater to

accumulate, groundwater sample collected on 10/30/2007 via bailer,

borehole backfilled with Potland Type II/V cement and Volclay

Grout slurry from bottom up using tremie method.

---- 62 ----

---- 63 ----

---- 64 ----

---- 61 ----

---- 60 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 76 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 73 ----

---- 74 ----

---- 75 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



H SP-SM 0 to 5 feet bgs. POORLY GRADED SAND WITH SILT: (10 YR

A 5/4) yellowish brown, dry, poorly graded, 90% very loose,

N subrounded, very fine to fine-grained sand, 10% nonplastic

D fines, no odor or staining observed.

A

U

G

E

R

12 0855 SM 5 to 6.5 feet bgs. SILTY SAND: (10 YR 6/4 to 2.5 Y 6/1) light

14 yellowish brown to gray, dry, poorly graded, 80% medium dense,

14 subrounded, very fine to fine-grained sand, 20% nonplastic fines,

trace friable cobbles (weathered San Timoteo SANDSTONE at

bottom of shoe), maximum size > 3 inches, no odor.

10 0900 SM/SC 10 to 11.5 feet bgs. SILTY/CLAYEY SAND: (10 YR 5/4 - 8/2)

10 yellowish brown to very pale brown, dry, poorly graded, 70%

12 loose to medium dense, subrounded, very fine to fine-grained sand,30% fines with no to low plasticity, trace hard, fine gravel,

maximum size = 3/8 inches, no odor.

Start continuous coring with split-spoon at 15 feet bgs.

18 0905 SB1-15' SM 15 to 18 feet bgs. SILTY SAND: (10 YR 6/4) light yellowish

20 0910 SB1-15'-Dup brown, dry, poorly graded, 80% dense, subrounded, very fine to

20 medium-grained sand, 20% nonplastic fines, no odor.

20 0910

25 Transition zone at 18 feet bgs. Weathered San Timoteo formation

30 redeposited as colluvium. Sample SB1-18' collected above contact.

25 0912 SB1-18' SM 18 to 25.5 feet bgs. SILTY SAND: (10 YR 5/4 to 2.5 Y 6/3)

50 yellowish brown to light yellowish brown, dry, poorly graded,

70% dense to very dense, subrounded, very fine to fine-grained

90 0915 SB1-20' sand, 30% nonplastic fines, no odor.

LMC Beaumont Site 2



---- 19 ----

---- 18 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 13 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

---- 6 ----

---- 7 ----

---- 8 ----

---- 9 ----

---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

BORING LOGWell ID: Tt-MW2-21 (SB1)

---- 0 ----

---- 1 ----


Drilling Method:


Northing (feet): 2271404.520 Easting (feet): 6325064.438 Ground Surface Elevation (feet MSL): 1975.50 Top of Casing Elevation (feet MSL): 1978.452

---- 20 ----

100%

100%

100%

67%

15%

15%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2





Drilling Method:



SM SILTY SAND: As above.

90 0920

100 0925

100 0930

Weathered San Timoteo contact at 25.5 feet bgs.

100 0945 ss/slst 25.5 to 30 feet bgs. SANDSTONE WITH SILT: (2.5 Y

(SP-SM) 6/2) light brownish gray, dry, poorly graded, friable, 90% very


100 1000 nonplastic fines, no odor, weak cementation, interbedded

SANDSTONE and SILTSTONE layering.

100 1005

30 feet bgs. NOT ENOUGH RECOVERY TO SAMPLE

100 1010 SB1-35' ss/slst 35 to 36.5 feet bgs. SILTY SANDSTONE: (2.5 Y 6/2 to 10 YR

+MS/MSD (SM) 7/4) light brownish gray to very pale brown, dry, poorly graded,

friable, 80% very dense, subrounded, very fine to fine-grained sand,

20% very stiff, nonplastic fines, trace hard, angular gravel at 36.5

feet bgs, no odor, weak cementation, interbedded.

---- 20 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 30 ----

---- 31 ----

---- 28 ----

---- 29 ----

---- 34 ----

---- 35 ----

---- 32 ----

---- 33 ----

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 40 ----

15%

15%

15%

15%

15%

15%

30%

100%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2





Drilling Method:



100 1025 SB1-40' ss/slst 40 to 41.5 feet bgs. SANDSTONE WITH SILTSTONE: (10 YR

(SP-SM) 6/4) light yellowish brown, dry to slightly damp, friable, 90%


nonplastic fines, no odor, weak cementation.

100 1040 SB1-45' ss (SP) 45 to 46.5 feet bgs. SANDSTONE: (2.5 Y 7/2) light gray, dry to

damp, poorly graded, friable, 95% very dense, subrounded, very

fine to fine-grained sand, 5% nonplastic fines, no odor, weak

cementation.

Stop drilling after collecting 50 ft samples, let stand over weekend,

100 1045 SB1-50' ss (SP) 50 to 51.5 feet bgs.SANDSTONE: As above.

1050 SB1-50'Dup

Resume drilling on 29-Oct-2007.

80 1218 SB1-55' slst (ML) 55 to 56.5 feet bgs. SANDY SILTSTONE: (2.5 Y 5/2) grayish

brown, dry, poorly graded, platy, very hard bedding, 80% very

stiff nonplastic fines, 20% subrounded, very fine-grained sand,

no odor, micaceous, weak cementation.

Augers grinding at 57 to 60 feet bgs; cuttings steaming.

Very hard, micaceous, platy siltstone in cuttings.

---- 40 ----

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 47 ----

---- 48 ----

---- 45 ----

---- 46 ----

---- 54 ----

---- 51 ----

---- 52 ----

---- 49 ----

---- 50 ----

---- 60 ----

---- 59 ----

---- 57 ----

---- 58 ----

---- 55 ----

---- 56 ----

---- 53 ----

100%

100%

33%

33%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


LMC Beaumont Site 2





Drilling Method:



40 1250 SB1-60' slst/mst 60 to 60.5 feet bgs. SANDY SILTSTONE/MUDSTONE: (2.5 Y

50 (ML/CL) 6/3) light yellowish brown, dry, poorly graded, 60% very stiff

fines with no to low plasticity, 35% very dense, subrounded,

very fine-grained sand, 5% friable to hard, angular, coarse gravel,

maximum size = 1 inch, no odor, weak cementation.

Augers grinding hard at 63.5 feet bgs; instruct driller to stop and

let sit overnight.

Resume Drilling on 30-Oct-2007.

65 feet bgs. No recovery, as above (from cuttings).

1st Water at approximately 70 feet bgs.

100 1723 SB1-70' ss (SP) 70 to 71.5 feet bgs. SANDSTONE: (2.5 Y 6/1) gray, wet, poorly

graded, 100% very dense, subrounded, medium to very coarse-

grained sand, trace hard, angular gravel, maximum size = 1 inch,

no odor, weak to moderate cementation.

1730 Augers at 75 feet bgs, no sample, stop drilling and let sit overnight.

0830 Resume drilling on 30-Oct-2007, no samples, as above (from cuttings).

Began setting well 30-Oct-2007; completed well 31-Oct-2007.

Total Depth = 80 feet bgs. Well constructed at 79 feet bgs.

---- 61 ----

---- 62 ----

---- 63 ----

---- 64 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 73 ----

---- 74 ----

---- 75 ----

---- 76 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 60 ----67%

100%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



H SP-SM 0 to 5 feet bgs. POORLY GRADED SAND WITH SILT: (10 YR

A 7/3) very pale brown, dry, poorly graded, 90% very loose,

N subrounded, very fine to fine-grained sand, 10% nonplastic fines,

D no staining or odor.

A

U

G

E

R

10 0915 SM 5 to 6.5 feet bgs. SILTY SAND: (10 YR 4/3) brown, dry, poorly

10 graded, 80% loose, subrounded, very fine to fine-grained sand,

12 20% nonplastic fines, trace friable, subangular, fine gravel,

maximum size = 1/4 to 3/8 inch, no odor

7 0920 SM 10 to 11.5 feet bgs. SILTY SAND: (10 YR 5/3) brown, dry,

9 poorly graded, 85% very loose, subrounded, very fine to fine-

11 grained sand, 15% nonplastic fines, trace friable, subrounded,fine gravel, maximum size = 1/2 inch, no odor.

14 0925 SB2-15' SM/SC 15 to 19.5 feet bgs. SILTY/CLAYEY SAND: (10 YR 5/4)

17 0930 SB2-15'-DUP yellowish brown, dry, poorly graded, 85% medium dense,

21 subrounded, very fine to medium-grained sand, 10% fines with

12 no to low plasticity, increasing plastic fines at 16.5 feet bgs, no odor.

14

18

25

500936 SB2-20' above contact Weathered San Timoteo formation contact at 19.5 feet bgs.

next pg. slst 19.5 to 20 feet bgs: SILTSTONE: (2.5 Y 7/2) olive gray.


---- 9 ----


---- 0 ----

---- 1 ----


Drilling Method:

---- 14 ----

---- 15 ----


---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

---- 6 ----

---- 7 ----

---- 8 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 13 ----

50%

---- 16 ----

---- 17 ----

---- 18 ----

---- 20 ----

LMC Beaumont Site 2



---- 19 ----

100%

100%

100%

100%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



35 ss/slst 20 to 25.5 feet bgs. SANDSTONE/SILTSTONE: (2.5 Y 7/2 to

50 5/4) light gray to light olive brown, dry, poorly graded, 60% very

85/6" dense, very fine-grained sand, 40% stiff, non to low plasticity

fines, platy layering, weak cementation, interbedded ss and slst,

no odor.

90/6" ss/slst SILTY SANDSTONE: As above, decreasing fines from 22.5 to

24 feet bgs.

85/6" 0952 ss/slst SILTY SANDSTONE: As above, (2.5 Y 5/3) light olive brown,

friable to platy layering, damp, poorly graded, 85% very dense,

subrounded, very fine to fine-grained sand, 15% nonplastic fines, 0.0

micaceous, weak cementation, no odor. BZ = 0.0

100 1020 SB2-30' ss/slst 30 to 31.5 feet bgs. SILTY SANDSTONE: (2.5 Y 6/2 to 6/4) 21.1

+MS/MSD light brownish gray to light yellowish brown, dry to damp, poorly BZ = 0.0

graded, friable to platy layering, 80% very dense, subrounded, very

fine to fine-grained sand, 20% nonplastic fines, weak cementation, Cuttings:

strong volatile organic compound (VOC) odor (like PVC cement). 85

BZ = 4.8

100 1025 SB2-35' ss/slst 35 to 36.5 feet bgs. SILTY SANDSTONE: (2.5 Y 6/4) 67

light yellowish brown, damp, poorly graded, friable to platy BZ = 0.0

layering, 85% very dense, subrounded, very fine

to fine-grained sand, 15% nonplastic fines, micaceous, weak

cementation, strong VOC (PVC cement-like) odor.

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 40 ----

---- 34 ----

---- 35 ----

---- 32 ----

---- 33 ----

---- 30 ----

---- 31 ----

---- 28 ----

---- 29 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 20 ----33%

25%

67%

33%

100%

67%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



100 1045 SB2-40' ss 40 to 41.5 feet bgs. SANDSTONE: (2.5 Y 6/3) light yellowish 35.5

brown, damp, poorly graded, 100% very dense, subrounded, very BZ = 0.0

fine to fine-grained sand, trace nonplastic fines, strong VOC odor.

35 1050 SB2-45' ss/slst 45 to 46.5 feet bgs. SILTY SANDSTONE: (2.5 Y 6/4) light 51.8 - 120

40 yellowish brown, dry, poorly graded, friable, platy layering, 85% BZ = 0.0

50 very dense, subrounded, very fine to fine-grained sand, 15%

nonplastic fines, micaceous, strong VOC odor.

33 1110 SB2-50' ss/slst 50 to 51.5 feet bgs. SILTY SANDSTONE: (2.5 Y 7/3) pale 10.8

35 yellow, dry, poorly graded, friable, platy layering, 80% very BZ = 0.0

40 dense, subrounded, very fine to medium-grained sand, 20%

nonplastic fines, trace fine gravel, maximum size = 1/2 inch,

slight VOC odor.

Augers grinding from 50 to 55 feet bgs.

40 1144 SB2-55' ss 55 to 56.5 fet bgs. SANDSTONE: (2.5 Y 7/2 to 6/4) light gray 0.1

50 to light yellowish brown, dry, poorly graded, hard, 95% very BZ = 0.0

dense, subrounded, very fine to fine-grained sand, 5% nonplastic

fines, strong cementation at 55 feet bgs to weak cementation below

56 feet bgs, no odor.

---- 55 ----

---- 56 ----

---- 53 ----

---- 60 ----

---- 54 ----

---- 59 ----

---- 57 ----

---- 58 ----

---- 51 ----

---- 52 ----

---- 49 ----

---- 50 ----

---- 47 ----

---- 48 ----

---- 45 ----

---- 46 ----

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 40 ----

100%

100%

50%

50%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



40 1240 SB2-60' ss 60 to 61.5 feet bgs. SANDSTONE: (2.5 Y 6/3) light yellowish 2.3

50 brown, moist, poorly graded, highly weathered, 100% very dense, BZ = 0.0

subrounded, fine to medium-grained sand, trace hard, angular,

coarse gravel, maximum size = 3/4 inch, slight odor, weak

cementation.

40 1303 SB2-65' ss 65 to 66.5 feet bgs. SANDSTONE: (2.5 Y 6/2) light brownish 2.3

50 gray, moist, poorly graded, highly weathered, 100% very dense, BZ = 0.0

well rounded to subrounded, medium to very coarse-grained sand,

trace hard, subangular, fine gravel, maximum size = 3/8 to 1/2 inch,

micaceous, slight odor, weak cementation.

1st water at 68.95 feet bgs, stop drilling at 1330 to let water in

borehole, 68.60 feet bgs at 1400, resume drilling.

35 1316 SB2-70' ss 65 to 66.5 feet bgs. SANDSTONE: (2.5 Y 6/2) light brownish 1.6

50 gray, moist, poorly graded, highly weathered, 100% very dense, BZ = 0.0

well rounded to subrounded, medium to very coarse-grained sand,

micaceous, slight odor, weak cementation.

ss 75 feet bgs. SANDSTONE: Logged from cuttings, BZ = 0.0

samples not collected; as above, running sand noted at 75 feet bgs.

ss/slst Hard grinding augers at 76 feet bgs. - possible less weathered

bedrock contact, increasing fines from 76 to 80 feet bgs.

Total Depth = 80 feet bgs. Well constructed at 79 feet bgs.

---- 60 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 73 ----

---- 74 ----

---- 75 ----

---- 76 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 61 ----

---- 62 ----

---- 63 ----

---- 64 ----

33%

33%

50%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



6 SP-SM 0 to 5 feet bgs. POORLY RGADED SAND WITH SILT:

6 1010 SB3-0.5' (10 YR 5/3) brown, dry, poorly graded, 90% very loose,

8 subrounded, very fine to fine-grained sand, 10% nonplastic fines,

no staining or odor.

Sample collected in brass sleeves with 2 1/2 inch split-spoon sampler

using hydraulic hammer for geotechnical testing.10 1012 SB3-5-5.5' SM/SC 5 to 8 feet bgs. SILTY/CLAYEY SAND: (10 YR 5/3) brown, dry,

12 SB3-5.5-6' poorly graded, 80% loose, subrounded, very fine to fine-grained

13 sand, 20% fines with no to low plasticity, trace friable, fine gravel,

8 1012 SB3-5' maximm size = 3/8 inch, no odor.

8

10

10 1025 SB3-10' SM 10 to 17 feet bgs. SILTY SAND: (10 YR 5/3) brown, dry, poorly

10 graded, 80% loose, subrounded, very fine to fine-grained sand,

12 20% nonplastic fines, trace friable, fine gravel, maximm size =10 3/8 inch, no odor.

10

12

10

10

12

12

14 1038 SB3-15' SM SILTY SAND: As above, decreasing fines to 15% nonplastic fines.

18

4050 Weathered San Timoteo formation contact at 17 feet bgs.

ss/slst/clst 17 to 20.5 feet bgs: SILTY/CLAYEY SANDSTONE: (2.5 Y 5/3 to

45 6/3) light olive brown to light yellowish brown, dry, poorly graded,

50 friable, platy layering, 85% very dense, subrounded, very fine to

fine-grained sand, 15% fines with no to low plasticity, no odor,

30 1102 SB3-19-19.5' weak cementation.

124/3" SB3-19.5-20' Sample collected in brass sleeves with 2 1/2 inch split-spoon sampler

using hydraulic hammer for geotechnical testing.

100%

100%

100%

100%

100%

100%

100%

100%

100%

100%

---- 20 ----



---- 0 ----

---- 1 ----


Drilling Method:


---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

---- 6 ----

---- 7 ----

---- 8 ----

---- 9 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 13 ----

---- 19 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

---- 18 ----

LMC Beaumont Site 2

Date Boring Started: Date Boring Completed: 2-Nov-2007

1-Nov-2007Linda Margullis19892-03Former Discharge Ponds


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



45/50 1119 SB3-20' ss/slst 20 to 20.5 feet bgs. SILTY SANDSTONE: As above,

SB3-20'-DUP increasing grain size, trace medium-grained sand.

35 1130 SB3-25' ss/slst 25 to 26.5 feet bgs: SANDSTONE/SILTSTONE: (2.5 Y 6/3)

50 1131 SB3-25'-DUP light yellowish brown, dry, poorly graded, friable, platy layering,

85% very dense, subrounded, very fine to fine-grained sand,

15% nonplastic fines, no odor, weak cementation.


light gray, dry, poorly graded, friable, platy layering,


15% nonplastic fines, no odor, weak cementation, micaceous.

45 1155 SB3-35' ss/slst 30 to 31.5 feet bgs: SILTY SANDSTONE: (2.5 Y 4/3)

50 olive brown, dry, poorly graded, friable, platy layering,


40% nonplastic fines, no odor, weak cementation, micaceous.

80%

33%

50%

---- 40 ----

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 34 ----

---- 35 ----

---- 32 ----

---- 33 ----

---- 30 ----

---- 31 ----

---- 28 ----

---- 29 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 20 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2




35 light olive brown, dry to damp, poorly graded, friable, platy

50 layering, 60% very dense, subrounded, very fine to fine-grained

sand, 40% nonplastic fines, no odor, weak cementation.


50 olive brown, dry to damp, poorly graded, friable, platy layering,

50 60% very dense, subrounded, very fine to fine-grained sand,

40% fines with no to low plasticity, no odor, weak cementation.

45 1230 SB3-50' ss/slst 50 to 51.5 feet bgs: SANDSTONE WITH SILT: (2.5 Y 6/3)

50 light yellowish brown, dry, poorly graded, friable, platy layering,


10% nonplastic fines, no odor, weak cementation.

Hard grinding, cuttings steaming.




10% nonplastic fines, no odor, weak cementation, highly weathered.

Added water to outside of augers.

95%

75%

68%

82%

---- 56 ----

---- 53 ----

---- 60 ----

---- 59 ----

---- 57 ----

---- 58 ----

---- 55 ----

---- 54 ----

---- 51 ----

---- 52 ----

---- 49 ----

---- 50 ----

---- 47 ----

---- 48 ----

---- 45 ----

---- 46 ----

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 40 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



40 1259 SB3-60' ss 60 to 61.5 feet bgs: SANDSTONE: (2.5 Y 6/3) light yellowish

60 brown, dry to damp, poorly graded, friable, platy layering,


trace nonplastic fines, no odor, weak cementation, highly

weathered.

Added water to outside of augers.

25 1321 SB3-65' ss 65 to 66.5 feet bgs: SANDSTONE: (2.5 Y 6/3) light yellowish

38 brown, dry to damp, poorly graded, friable, platy layering,

50 100% very dense, subrounded, very fine to fine-grained sand,

trace nonplastic fines, no odor, weak cementation, highly

weathered.

25 1338 SB3-70' slst/mst 70 to 71.5 feet bgs. SILTSTONE/MUDSTONE: (2.5 Y 6/3)

25 light yellowish brown, dry to damp, friable, 60% very stiff fines

40 with no to low plasticity, 35% very dense, subrounded, very fine-

grained sand, no odor.

Cuttings steaming.

40 1400 SB3-75' slst/mst 75 to 76.5 feet bgs. SILTSTONE/MUDSTONE: (2.5 Y 5/3)

50 light yellowish brown, dry to damp, platy layering, 60% very stiff

fines with no to low plasticity, 35% very dense, subrounded, very

fine-grained sand, no odor.

Cuttings steaming.

20%---- 60 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 73 ----

---- 74 ----

---- 75 ----

---- 76 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 61 ----

---- 62 ----

---- 63 ----

---- 64 ----

40%

90%

100%


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2





80% very dense, subrounded, fine-grained sand, 20% nonplastic

fines, no odor, weak cementation.

Augers grinding, cuttings steaming, added water to outside of augers.


50 light yellowish brown, dry to damp, poorly graded, friable, platy

layering, 90% very dense, subrounded, fine-grained sand, 10%


Cuttings steaming.

First water at approximately 90 feet bgs.

40 1620 SB3-90' ss 90 to 91.5 feet bgs: SANDSTONE: (2.5 Y 5/2) grayish brown,

50 wet, poorly graded, friable, platy layering, 100% very dense,

subrounded, fine to coarse-grained sand, weak cementation, highly

weathered, no odor.

Cuttings steaming.

Continue logging from cuttings; no more analytical samples collected.

ss SANDSTONE: As above, logged from cuttings.

ss SANDSTONE: As above, logged from cuttings.

Total Depth = 100 feet bgs. Well constructed at 98.5 feet bgs.

---- 96 ----

---- 97 ----

---- 90 ----

---- 91 ----

---- 88 ----

---- 89 ----

---- 99 ----

---- 100 ----

---- 94 ----

---- 95 ----

---- 92 ----

---- 93 ----

---- 87 ----

---- 84 ----

---- 85 ----

---- 82 ----

---- 83 ----

---- 86 ----

---- 80 ----

---- 81 ----

---- 98 ----

30%

50%

80%

Page 1 of 4 Project: 67.5 feet bgs Sampling Method: Split-Spoon Location: 10 inches Project No.: WDC Exploration Logged By:

Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log



H SM 0 to 5 feet bgs. SILTY SAND: (10 YR 6/3) light yellowish

A brown, dry, poorly graded, 75% loose, subrounded, very fine

N to fine-grained sand, 20% nonplastic fines, 5% hard, subangular,

D fine gravel, maximum size = 1/2 inch, no staining or odor.

A

U

G

E

R

6 0950 -- SM 5 to 6.5 feet bgs. SILTY SAND: (10 YR 6/3) light yellowish

8 brown, dry, poorly graded, 75% loose, subrounded, very fine

8 to fine-grained sand, 20% nonplastic fines, 5% hard, subangular,


8 0955 -- SM 10 to 11.5 feet bgs. SILTY SAND: (7.5 YR 5/4) brown

10 dry, poorly graded, 75% loose, subrounded, very fine

10 to fine-grained sand, 20% nonplastic fines, 5% hard, subangular,fine gravel, maximum size = 1/2 inch, no staining or odor.

10 1002 SB6-15' SM 15 to 16.5 feet bgs. SILTY SAND: (7.5 YR 5/4) brown,




100%

100%

50%

---- 20 ----



---- 0 ----

---- 1 ----


Drilling Method:


---- 13 ----

---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

---- 6 ----

---- 7 ----

---- 18 ----

---- 8 ----

---- 9 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

LMC Beaumont Site 2



---- 19 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2










18 SP-SM fine gravel, maximum size = 1/2 inch, no staining or odor.

18 26.5 to 31 feet bgs. POORLY GRADED SAND WITH SILT:

23 (7.5 YR 5/4) brown, damp to moist, poorly graded, 80% medium

20 dense, subrounded, very fine to coarse-grained sand, 10% non-

20 plastic fines, 10% hard, angular gravel, no odor, increasing

20 coarse sand at 28 feet bgs.

19

21

25

22 Interbedded fine sand stringers and gravel at 31 feet bgs.

28 SP-SC 31 to 38.5 feet bgs. POORLY GRADED SAND WITH CLAY:

30 (10 YR 5/4) yellowish brown, damp to moist, poorly graded,

23 90% dense, subrounded, very fine to fine-grained sand, 10% fines

23 with no to low plasticity, trace, hard, fine gravel, maximum size =

25 3/8 inch, no odor.

18 Increasing gravel and coarse-grained sand at 34 feet bgs, interbedded

22 gravelly and fine sand layers.

24 1038 SB6-35' SP-SC POORLY GRADED SAND WITH CLAY: As above, 5% hard,

15 angular, coarse-grained gravel, maximum size = 3/4 to 1 inch.

17

20 Very hard gravel with granitic mineralogy at 37 feet bgs.

14

17 Increasing gravel and decreasing fines at 38.5 feet bgs.

21 38.5 to 40.5 feet bgs. POORLY GRADED SAND WITH GRAVEL:

23 SP (10 YR 7/3) very pale brown, damp to moist, poorly graded, 80%

25 1100 SB6-39.5' dense, subrounded, very fine to coarse-grained sand, 15% hard,

27 1108 SB6-39.5'-DUP angular, coarse gravel, maximum size = 1 inch, 5% nonplastic fines, no odor.

Augers grinding hard 39.5 to 40 feet bgs.

100%

100%

100%

100%

100%

100%

100%

100%

100%

100%

100%

---- 40 ----

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 34 ----

---- 35 ----

---- 32 ----

---- 33 ----

---- 30 ----

---- 31 ----

---- 28 ----

---- 29 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 20 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



15 SP POORLY GRADED SAND WITH GRAVEL, As above.

20 ss Weathered San Timoteo Formation contact at 40.5 feet bgs.

20 40.5 to 41.5 feet ngs. SANDSTONE: (2.5 Y 6/2) light brownish

20 ss/slst gray, moist, poorly graded, 100% dense, subrounded, very fine

20 to fine-grained sand, trace plastic fines, weak cementation, no odor.

20 41.5 to 45 feet bgs. SILTY SANDSTONE: (2.5 Y 6/2 to 5/3)

23 light brownish gray to light olive brown, moist, poorly graded,

25 60% very dense, subrounded, very fine to fine-grained sand, 40%

27 nonplastic fines, weak cementation, interbedded SANDSTONE

45 and SILTSTONE layers, no odor.

50 1119 SB6-45' ss/slst 45 to 46 feet bgs. SANDSTONE WITH SILT: As above,

decreasing nonplastic fines to 10%, weak cementation, no odor.

33% 65/6" 1140 SB6-50' ss 50 to 50.5 feet bgs. SANDSTONE: (2.5 Y 6/3) light yellowish

brown, moist to wet, poorly graded, 100% very dense, subrounded,

very fine to fine-grained sand, trace nonplastic fines, trace hard,

subangular, coarse gravel, maximum size = 3/4 inch, weak


Increasing plastic fines noted in cuttings - possible clay layer

between 50 and 55 feet bgs.

Stop drilling and let water accumulate on 10/25/2007, resume on 10/26/2007.33% 100/6" 1215 SB6-55' ss 55 to 55.5 feet bgs. SANDSTONE: (2.5 Y 6/2) light brownish

gray, moist to wet, poorly graded, 100% very dense, subrounded,

fine to medium-grained sand, trace nonplastic fines, weak


1320

1300 1st Water at 59.63 feet bgs at 1320, rose to 58.65 by 1320.

100%

50%

100%

100%

---- 60 ----

---- 59 ----

---- 57 ----

---- 58 ----

---- 55 ----

---- 56 ----

---- 54 ----

---- 47 ----

---- 48 ----

---- 53 ----

---- 45 ----

---- 46 ----

---- 51 ----

---- 52 ----

---- 49 ----

---- 50 ----

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 40 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log





Drilling Method:


LMC Beaumont Site 2



No sample, logged from cuttings: SANDSTONE: (2.5 Y 6/2)

light brownish gray, moist to wet, poorly graded, 100% very

dense, subrounded, fine to medium-grained sand, trace nonplastic

fines, weak cementation, no odor.

SANDSTONE: As above, running sand in cuttings at 65 feet bgs.

Driller notes soft rock at 67 feet bgs, followed by harder, less weathered no recovery San Tomoteo rock at 67.5 feet bgs, attempt to collect sample, no recovery.

Total Depth = 67.5 feet bgs.

Well built from 67 feet bgs.

---- 60 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 73 ----

---- 74 ----

---- 75 ----

---- 76 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 61 ----

---- 62 ----

---- 63 ----

---- 64 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log


Surface: native plants/topsoil

H SP 0 to 5 feet bgs. POORLY GRADED SAND: (10 YR 6/3) pale

A brown, dry, poorly graded, 95% very loose, subrounded to

N subangular, very fine to medium-grained sand, 5% nonplastic

D fines, no odor or staining.

A

U

G

E

R

12 1205 SP 5 to 6.5 feet bgs. POORLY GRADED SAND: (10 YR 6/3) pale 0.0

14 brown, dry, poorly graded, 95% very loose, subrounded to BZ = 0.0

16 subangular, very fine to medium-grained sand, 5% nonplastic

fines, trace hard, flattenned fine gravel, maximum size = 1/2 inches,

no odor or staining.

10 feet bgs. Weathered San Timoteo contact/highly weathered sandstone.

10 1215 SP-SM 10 to 11.5 feet bgs. POORLY GRADED SAND WITH SILT: 0.0 - 0.1

12 (2.5 Y 6/2) light brownish gray, dry, poorly graded, 90% very BZ = 0.0

14 loose to loose, subrounded to subangular, very fine to coarse-grained sand, 10% nonplastic fines, trace hard, subrounded to

subangular fine gravel, maximum size = 3/8 inches, no odor or staining.

23 1220 SP 15 to 16.5 feet bgs. POORLY GRADED SAND WITH GRAVEL: 0.0 - 0.1

25 (2.5 Y 6/2) light brownish gray, dry to slightly damp, poorly BZ = 0.0

27 graded, 85% medium dense to dense, subrounded to subangular,

medium to very coarse-grained sand, 15% friable to hard,

subrounded to subangular coarse gravel, maximum size = 1 inch,

increasing gravel at 16 feet bgs, trace nonplastic fines, no odor.

Transition zone: weathered sand and gravel, start continuous

coring with split-spoon at 20 feet bgs.

100%

100%

100%

LMC Beaumont Site 2 Off-Site


18-Oct-2007David Bertolacci19893-02Site 2 Southern Property Boundary

---- 19 ----

---- 18 ----

---- 10 ----

---- 11 ----

---- 12 ----

---- 13 ----

---- 14 ----

---- 15 ----

---- 16 ----

---- 17 ----

---- 6 ----

---- 7 ----

---- 8 ----

---- 9 ----

---- 2 ----

---- 3 ----

---- 4 ----

---- 5 ----

BORING LOGWell ID: Tt-MW2-7D

---- 0 ----

---- 1 ----


Drilling Method:



---- 20 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log







Drilling Method:



40 1230 SP-SM 20 to 20.5 feet bgs. POORLY GRADED SAND WITH SILT: 0.0 - 0.1

50 SP trace plastic fines; first water at approximately 20.5-21 feet bgs. BZ = 0.0

20.5 to 25.5 feet bgs. POORLY GRADED SAND: (10 YR 5/3 -

45 1240 2.5 Y 7/2) brown to light gray, damp to wet (at 21 feet bgs), 0.0 - 0.1

50 poorly graded, 100% dense to very dense, subrounded, very BZ = 0.1

fine to fine-grained sand, no odor or staining.

0.0 - 0.1

40 1245 BZ = 0.1

5025 feet bgs. Weathered San Timoteo contact/very dense sandstone. 0.1 - 0.2

40 1255 ss 25 to 25.5 feet bgs. WEATHERED SANDSTONE, very dense. BZ = 0.2

50 ML 25.5 to 27.5 feet bgs. SANDY SILT: (2.5 Y 6/2 to 4/3) light

brownish gray to olive brown, damp, poorly graded, 70% very 0.1 - 0.2

47 1300 stiff, fines with no to low plasticity, 30% very dense, subrounded, BZ = 0.2

50 SP very fine-grained sand,interbedded silt and sand, no odor.

27.5 to 28 feet bgs. POORLY GRADED SAND: As above, wet.

37 1335 SP 30 to 31.5 feet bgs. POORLY GRADED SAND: (2.5 Y 6/2) light 0.2 - 0.3

50 brownish gray, moist to wet, poorly graded, 95% very dense, BZ = 0.2

subrounded to subangular, very fine to very coarse-grained sand,

5% hard, angular, fine to coarse gravel, maximum size = 1/2 to 3/4

inches, no odor, change in color of cuttings observed at 30 feet bgs

to (5 Y 5/2) olive gray

45 1345 SP/ss 35 to 36.5 feet bgs: POORLY GRADED SANDSTONE: (5 Y 5/2) 0.2 - 0.3

50 olive gray, moist to wet, poorly graded, 100% very dense, BZ = 0.2

subrounded, very fine to fine-grained sand, trace nonplastic fines,

as above, very dense weathered sandstone, clay balls observed in

cuttings between 35 to 40 feet bgs (fines with low plasticity).

50%

33%

50%(1'/2')

67%

67%

67%

67%---- 20 ----

---- 21 ----

---- 26 ----

---- 27 ----

---- 24 ----

---- 25 ----

---- 22 ----

---- 23 ----

---- 30 ----

---- 31 ----

---- 28 ----

---- 29 ----

---- 34 ----

---- 35 ----

---- 32 ----

---- 33 ----

---- 38 ----

---- 39 ----

---- 36 ----

---- 37 ----

---- 40 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log







Drilling Method:



35 1355 SP/ss 40 to 41.5 feet bgs. POORLY GRADED SANDSTONE: ( 5 Y 5/2) 0.2

50 olive gray, moist to wet, poorly graded, 100% very dense, BZ = 0.2

subrounded, very fine to fine-grained sand, trace very stiff, low to

medium plasticity fines (as clay nodules), no odor.

Note: augers grinding and steaming.

Contact with less weathered (more competent) San Timoteoformation at approximately 45 to 50 feet bgs.

33% 100/6" 1410 ss/slst 45 to 45.5 feet bgs. SILTY SANDSTONE: (5 Y 5/1) gray, damp, 0.3

(SM) poorly graded, friable, platy bedding, 55% very dense, subrounded, BZ = 0.3

very fine-grained sand, 45% very stiff, nonplastic fines, no odor. Fresh Air

Calibration

33% 75/6" 1420 ss 50 to 50.5 fet bgs. SANDSTONE: (5 Y 6/1) gray, damp, poorly 0.0

(SP) graded, friable to very hard, 100% very dense, subrounded, very BZ = 0.0

fine to fine-grained sand, trace very stiff, nonplastic fines, no odor.

More weathered sandstone underneath less weathered sandstone.

33% 80/6" 1515 ss/slst 55 to 55.5 feet bgs. SANDSTONE WITH SILT: (5 Y 4/1) dark 0.0

(SP-SM) gray, moist, poorly graded, friable, platy bedding, 90% very BZ = 0.0



2nd Water-bearing unit encountered at approximately 59 to 60 feet bgs.

(Can hear water in borehole while pounding 60 ft sample.)

50%---- 40 ----

---- 43 ----

---- 44 ----

---- 41 ----

---- 42 ----

---- 47 ----

---- 48 ----

---- 45 ----

---- 46 ----

---- 54 ----

---- 51 ----

---- 52 ----

---- 49 ----

---- 50 ----

---- 60 ----

---- 59 ----

---- 57 ----

---- 58 ----

---- 55 ----

---- 56 ----

---- 53 ----


Hollow-Stem Auger


Blow Counts Time

Sample No. USCS

Graphic Log







Drilling Method:



33% 70/6" 1550 ss/slst 60 to 60.5 feet bgs. SANDSTONE WITH SILT: (5 Y 4/1 - 3/1) 0.0

(SP-SM) dark gray to very dark gray, moist to wet, poorly graded, friable to BZ = 0.0

hard, platy bedding, 90% very dense, subrounded, very fine to

fine-grained sand, 10% very stiff, nonplastic fines, no odor, weak

to moderate cementation, hard sandstone in bottom of shoe.

1615 Stop drilling with augers at 63 feet bgs, continue on 19-Oct-2007.

18% 50/3" 0815 Slough - no recovery. Rig chatter and change in cutings to dark gray. BZ = 0.0

Note: Rock plug is causing problems drilling, pull augers and

continue drilling with 'woody.'

Competent San Timoteo formation at 68 feet bgs.

ss Recovered from bottom of auger string in bit at 68 feet bgs.

SANDSTONE: (5 Y 6/1) gray, wet, poorly graded, very hard,


micaceous, well cemented, no odor.

Continue logging from cuttings; auger plugged with 'woody.' BZ = 0.0

From cuttings: Very hard, well cemented SANDSTONE (as above). BZ = 0.0

Refusal encountered at total depth of 75 feet bgs.

Woody pushed up inside augers, knock out and build well at 74 feet bgs.

Running sands caused well to upheave in borehole and transition sand bridged

at 25 feet bgs. Abandoned borehole (too wide to drill sand out) and

backfill from bottom with Portland type II/V cement/Volclay Grout slurry

using hard-tremie pipe from bottom-up.

Step-out boring advanced to 70 feet bgs on 24-Oct-2007 and well constructed.

---- 61 ----

---- 62 ----

---- 63 ----

---- 64 ----

---- 65 ----

---- 66 ----

---- 67 ----

---- 68 ----

---- 69 ----

---- 70 ----

---- 71 ----

---- 72 ----

---- 73 ----

---- 74 ----

---- 75 ----

---- 76 ----

---- 80 ----

---- 77 ----

---- 78 ----

---- 79 ----

---- 60 ----

Documents

BORING LOG Boring ID: SB1B - lockheedmartin.com fileLog OVA (ppm, BZ = breathing zone) LMC Beaumont Site 2 Date Boring Started: Date Boring Completed: 31-Oct-2007 31-Oct-2007 David