August 4, 2003

Martin Siderius

SAIC

10260 Campus Point Dr. M/S C6

San Diego, CA 92121

Dear Mr. Siderius;

Please find enclosed the results for 3 grain size samples received on July 24, 2003. These samples

were processed according to procedures described by Plumb, 1981. All analyses were performed

consistent with our laboratory's quality assurance program, and all samples met the quality control

criteria specified in the above methods and/or our internal SOPs. This report is to be reproduced in its entirety.

We will dispose of the samples in 30 days unless you specify otherwise. Thank you for allowing us the opportunity of processing your sediment samples and please call if you have any questions.

Sincerely,

Sheila Holt

Laboratory Manager

GRAIN SIZE ANALYSIS

Company: SAIC

Contact person: Martin Siderius

Date of analysis: 29Jul03

Date of report: 4Aug03

Analysis method: Sieve/pipette (Plumb, 1981)

Sample Identification: AÆ

Total sample weight: 33.587 grams

-------- Size ------ Weight Cumulative

Microns Phi grams Percent Percent

2000.000 -1.0 5.284 15.732 15.732

1414.214 -0.5 2.545 7.577 23.309

1000.000 0.0 4.369 13.008 36.317

707.107 0.5 6.003 17.873 54.190

500.000 1.0 6.594 19.632 73.822

353.553 1.5 5.871 17.480 91.302

250.000 2.0 1.329 3.957 95.259

176.777 2.5 0.704 2.096 97.355

125.000 3.0 0.265 0.789 98.144

88.388 3.5 0.092 0.274 98.418

62.500 4.0 0.042 0.125 98.543

31.250 5.0 0.042 0.124 98.667

15.625 6.0 0.042 0.124 98.791

7.812 7.0 0.042 0.124 98.915

3.906 8.0 0.042 0.124 99.039

1.953 9.0 0.042 0.124 99.163

< 1.953 > 9.0 0.281 0.837 100.000

% < 4 phi = 1.457

% > 1 phi = 54.190

% gravel = 15.732

% sand = 82.811

% silt = 0.496

% clay = 0.961

Sample Statistics

Median Mean Dispersion Skewness

phi microns phi microns

0.383 766.96 0.154 898.50 1.137 -0.201

5th percentile = .

16th percentile = -0.982

50th percentile = 0.383

84th percentile = 1.291

95th percentile = 1.967

*** 5th percentile not obtainable ***

MEC Analytical Systems, Inc.

2433 Impala Dr.

Carlsbad, CA 92008

GRAIN SIZE ANALYSIS

Company: SAIC

Contact person: Martin Siderius

Date of analysis: 29Jul03

Date of report: 4Aug03

Analysis method: Sieve/pipette (Plumb, 1981)

Sample Identification: A4

Total sample weight: 31.032 grams

-------- Size ------ Weight Cumulative

Microns Phi grams Percent Percent

2000.000 -1.0 7.143 23.018 23.018

1414.214 -0.5 2.928 9.435 32.453

1000.000 0.0 4.292 13.831 46.284

707.107 0.5 5.355 17.256 63.540

500.000 1.0 5.189 16.721 80.262

353.553 1.5 3.592 11.575 91.837

250.000 2.0 0.821 2.646 94.482

176.777 2.5 0.562 1.811 96.293

125.000 3.0 0.344 1.109 97.402

88.388 3.5 0.155 0.499 97.901

62.500 4.0 0.056 0.180 98.082

31.250 5.0 0.043 0.137 98.219

15.625 6.0 0.043 0.137 98.356

7.812 7.0 0.043 0.137 98.493

3.906 8.0 0.085 0.274 98.767

1.953 9.0 0.043 0.137 98.904

< 1.953 > 9.0 0.340 1.096 100.000

% < 4 phi = 1.918

% > 1 phi = 63.540

% gravel = 23.018

% sand = 75.064

% silt = 0.685

% clay = 1.233

Sample Statistics

Median Mean Dispersion Skewness

phi microns phi microns

0.108 928.09 0 1076 1.267 -0.168

5th percentile = .

16th percentile = -1.372

50th percentile = 0.108

84th percentile = 1.161

95th percentile = 2.143

*** 5th percentile not obtainable ***

*** 16th percentile extrapolated ***

MEC Analytical Systems, Inc.

2433 Impala Dr.

Carlsbad, CA 92008

GRAIN SIZE ANALYSIS

Company: SAIC

Contact person: Martin Siderius

Date of analysis: 29Jul03

Date of report: 4Aug03

Analysis method: Sieve/pipette (Plumb, 1981)

Sample Identification: A55

Total sample weight: 29.621 grams

-------- Size ------ Weight Cumulative

Microns Phi grams Percent Percent

2000.000 -1.0 6.354 21.451 21.451

1414.214 -0.5 4.278 14.442 35.893

1000.000 0.0 3.470 11.715 47.608

707.107 0.5 4.104 13.855 61.463

500.000 1.0 3.773 12.737 74.200

353.553 1.5 2.897 9.780 83.980

250.000 2.0 2.071 6.992 90.972

176.777 2.5 1.027 3.467 94.439

125.000 3.0 0.525 1.772 96.211

88.388 3.5 0.252 0.851 97.062

62.500 4.0 0.105 0.354 97.417

31.250 5.0 0.128 0.430 97.847

15.625 6.0 0.085 0.287 98.134

7.812 7.0 0.043 0.143 98.278

3.906 8.0 0.043 0.143 98.421

1.953 9.0 0.043 0.143 98.565

< 1.953 > 9.0 0.425 1.435 100.000

% < 4 phi = 2.583

% > 1 phi = 61.463

% gravel = 21.451

% sand = 75.966

% silt = 1.004

% clay = 1.579

Sample Statistics

Median Mean Dispersion Skewness

phi microns phi microns

0.086 941.91 0.156 897.29 1.345 0.052

5th percentile = .

16th percentile = -1.189

50th percentile = 0.086

84th percentile = 1.501

95th percentile = 2.658

*** 5th percentile not obtainable ***

*** 16th percentile extrapolated ***

MEC Analytical Systems, Inc.

2433 Impala Dr.

Carlsbad, CA 92008