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TECHN1CONENGINEERING SERVICES, Inc.

Cointi action Testing & Inspection • Geotechnical & Environmental Engineering

November 29,2001 <Revised 1-8-02> TES #7254.16Invoice #25454

For: Mr. Ed FalserI.T Corporation3281 S MapleMalaga, CA 93725

Project: Purity Oil3281 S. MapleMalaga, CA

Subject: In-Place Relative Compaction TestingOf Paved Area Subgrade Construction

Dear Mr Falser:

In accordance with your authorization and request, our firm has performed in-place relativecompaction tests for the paved area subgrade construction of the referenced project site.This report presents our scope of services, summarizes the test results, and provides ourconclusion, limitation, and a closing statement

PROJECT DESCRIPTION

The project site is located at 3281 S. Maple, in Malaga, California. Please refer to theapproved project plans and for additional project information

CONCLUSION

Based upon our laboratory tests and field tests, the compaction of the paved area subgradesoils, are as addressed in this report, meets or exceeds the minimum relative compactionrequirement of 90% of the maximum dry density as determined by ASTM D1557-91 as setforth in the project specifications. , ,

4539 N. Brawley* 108 » Fresno, CA 93722 • Phone (559) 276-9311 » Fax (559) 276-9344WWW.TECHNICON. NET • E-MAIL: INFO@TECHNICON.NET

Purrty Oil Page 2Malaga, CA TES#725416

SCOPE OF SERVICES

The in-place soil density tests were conducted in accordance with the following methodsspecified in UBC Section 3314 and the American Standards for Testing and Materials.

Designation Title

ASTM D1556-91 "Density of Soil by Sand Cone Method"

ASTM D2922-91 "Density of Soil and Soil-Aggregate in Place by NuclearMethods (Shallow Depth)."

ASTM D3017-88 "Test Method Moisture Content of Soil and Rock in Place byNuclear Methods (Shallow Depth)."

ASTM D2937-83 "Density of Soil in Place by the Drive Cylinder Method.

ASTM D2216-92 "Test Method Moisture Content of Soil and Rock by LaboratoryDetermination"

ASTM D1557-91 "Test Method for Laboratory Compaction Characteristics of SoilUsing Modified Effort (56,000 ft-lbf/ft3)."

ASTM D2487-90 "Test Method for Classification of Soils for EngineeringPurposes"

SUMMARY OF TEST RESULTS

The following summarizes the test results as determined by our engineering testingtechnician on the dates indicated below. Please reference the approved project plans foradditional information.

TECHNICON'ENGINEERING SERVICES, INC.

Purity OilMalaga. CA

Page 3TESJ725416

MAXIMUM DENSITY-OPTIMUM MOISTURE RELATIONSHIP DETERMINATIONS

To determine the relative compaction of the soil, a representative composite sample wastaken to establish the maximum density-optimum moisture relationship The followingpresents our test results involving the moisture-density relationships of the soil used in theearthwork construction

Testing Technicians: J LeForge

MaterialNumber

1

2

3

4

5MBF

6MSC

7

8

9

10

11

TestDate

1-15-01

12-1-00

4-18-01

1-15-01

9-10-01

9-11-01

9-13-01

9-13-01

10-10-01

10-4-01

10-11-01

VisualClassification

Silty Sand, YellowishBrown, Fine grained,Micas, non-cohesive

Silty Sand

Fine Silty Sand

Silty Sand, YellowishBrown

Minnewawa BackfillMaterial

Minnewawa SandCover

Minnewawa SandCover, Subgrade

SW Slope, Subgrade

50/50 MinnewawaBackfill Material

2na MinnewawaBackfill, Silty Sand

Light Brown, SiltySand

TestMethod

ASTMD1 557-91

ASTMD 1557-91

ASTMD 1557-91

ASTMD1557-91

ASTMD1 557-91

ASTMD1557-91

ASTMD1 557-91

ASTMD 1557-91

ASTMD 1557-91

ASTMD1 557-91

ASTMD1 557-91

Max DryDensity (pcf)

1266

1221

1267

1266

1220

1109

1182

1266

1320

1244

1236

OptimumMoisture %

8 5

77

70

85

99

8 1

11 5

88

80

92

6 1

TECHNICONENGINEERING SERVICES INC

Purity OilMalaga, CA

Page 4TESJ725416

MaterialNumber

12

13

14

15

16

17

18

TestDate

10-11-01

10-11-01

10-30-01

10-30-01

10-30-01

11-01-01

11-20-01

VisualClassification

3ra Lift North EdgeTop

South SlopeSubgrade

Silty Sand with InertDebris

SM, with Inert Debris

Silty Sand with InertDebris

Silty Sand

Southern Pipe RepairBackfill

TestMethod

ASTMD 1557-91

ASTMD 1557-91

ASTMD1 557-91

ASTMD1 557-91

ASTMD1 557-91

ASTMD 1557-91

ASTMD1 557-91

Max DryDensity (pcf)

1259

1242

1300

129 1

1246

1243

121 6

OptimumMoisture %

6 8

67

80

78

81

101

76

Compaction testing performed on November 26, 2001Win. Required Compaction: 90% as determined by ASTM D1557-91

+ or- 3% of optimum moisture content

Test No

265SC

266SC

267SC

268SC

269SC

Test Location

Grid Q-4

Grid Q-3

Grid S-4

Grid S-3

Grid V-5

MaterialNo

10

10

10

10

10

MaxDepth

5th Lift

5m Lift

5'" Lift

5'n Lift

5tn Lift

In-PlaceMoisture%

76

76

76

76

80

RelativeComp %

97

95

95

95

92

PassFail

P

P

P

P

P

LIMITATION

This report presents the pertinent relative compaction test data and results at the locationsand elevations tested. All locations and elevations are approximations based uponinformation provided by the approved project plans and survey staking. Variations mayoccur between test locations. Our firm takes no responsibility for the lossTof relativecompaction in the event of post-construction activities without proper inspection and testing.

TECHNICONENGINEERING SERVICES, INC

Purity OilMalaga, CA

PageSTES#725416

CLOSING

Thank you for your valued business We trust this report will satisfy your needs Shouldyou have any questions or if we may be of further assistance to you, please call our office

Sincerely,

TECHNICON Engineering Services, Inc

Heather RagsdaleTesting SupervisorMaterials Division

2c Herewith (wet sig)

Darren G WilliasQs, RCJ—, £b^Principal

TECHNICONENGINEERING SERVICES, INC

ENGINEERING SERVICES, i

Cons/mcfivn Testing & Inspection • Georecfuricai & EnvirQiimentiil Engineering

PROJECT '^y y PROJECTCLIENT «g» <X^reT~' _ DATECONTRACTOR W (Z 5 ___ _!„____ WEATHER CONDITIONSNO. OF WORKERS __ _ COMPLETED .....

SOILSRelative compaction testing was conducted on the: soils Sc aggregrate base otherfor the; building pad trenches paved areas _ other )<^_ off site, on site

Minimum required compaction %Maximum depth of testingCompaction tests range from °)^ % to 7^ % of relative compactionThe relative compaction test(s) were above the ?<2 % minimum of relative compactionThe relative compaction test(3) conform to the project plans/specifications and geotechnicaj reports

yes noNotes Discrepancies ___ Correction Notice Issue

A-£>£*-

Sketch of test location(s):

i

INSPECTOR: V/T^Pgffi. PROJECT REPRESENTATIVE:

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