Caltrans SIAD - Lab Information for GEOCON West, Incorporated

Lab details for GEOCON West, Incorporated - Burbank

Basic Information

Lab Name	GEOCON West, Incorporated - Burbank
Manager Name	Phillip Stephens
Lab Email	stephens@geoconinc.com
Lab Telephone	818-841-8388
Lab Fax	818-841-1704
Lab Full Address	500 North Victory Boulevard, Burbank, CA 91504
Zip	91504
Lab Type	Private
District	7
Mobile Lab Full Address	, ,

Download TL-0113

RSP Information

RSP Shipping Address: 500 North Victory Boulevard, Burbank, CA 91504

Test Methods

California Test (CT) Accreditations

Total 31 items.

Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Technician Certified?	Comments
CT 105: Calculations - Gradings (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 106: Definitions - Specific Gravity (SpG)	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 125 AGG: Sampling - AGGREGATES (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 125 AGG: Sampling - AGGREGATES	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 125 GEN: Sampling - GENERAL	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 125 HMA: Sampling - HMA	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 201: Sample Preparation - Soil and Aggregates (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 204: LL, PL, PI	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 205: Percent Crushed Particles (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 206: SpG & Absorption - Coarse Aggregates	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 207: SpG & Absorption - Fine Aggregates	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 208: Apparent SpG - Fine Aggregates	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 209: SpG for Soil	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 216: Relative Compaction - Soils and Aggregates (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 217: Sand Equivalent (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 226: Moisture Content - Soils and Aggregates (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 227: Cleanness Value (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 229: Durability (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 231: Relative Compaction - Nuclear Gage	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 308: Bulk SpG and Density - HMA	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 375: AC Density by Nuclear Gage	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 504: Air Content of PCC - Pressure Method (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 518: Unit Weight - PCC (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231)	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 521.1: Compressive Strength - PCC (ASTM C39 / C617)	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 533: Ball Penetration - PCC	2026-07-16	2027-07-16	Active	Jay Horton	No	(not set)
CT 539: Sampling Fresh Concrete (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 540: Making Cylinders - PCC (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 556: Slump - PCC (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)
CT 557: Temperature - PCC (JTCP)	2026-07-16	2027-07-16	Active	Jay Horton	Yes	(not set)

AASHTO/ASTM Proficiencies

Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Technician Certified?	Comments
No results found.

Technicians in the Lab

Technician Summary

Total 7 items.

First Name	Last Name	Actions
Phillip	Stephens	View
Thai	La	View
Alfonso	Arellano	View
James Chris	Vaughn	View
Dergham "Danny"	Mahfoud	View
Luis	Castillo	View
Jason	Lewin	View

Technician Details

Details for Phillip Stephens

First Name	Phillip
Last Name	Stephens
Status	Active

Total 18 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 105: Calculations - Gradings (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 125 AGG: Sampling - AGGREGATES (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 201: Sample Preparation - Soil and Aggregates (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 205: Percent Crushed Particles (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 216: Relative Compaction - Soils and Aggregates (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 217: Sand Equivalent (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 226: Moisture Content - Soils and Aggregates (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 227: Cleanness Value (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 229: Durability (JTCP)	2025-08-15	2028-08-15	Active	Graham Velek	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	Yes
CT 518: Unit Weight - PCC (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	No
CT 539: Sampling Fresh Concrete (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	Yes
CT 540: Making Cylinders - PCC (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	No
CT 556: Slump - PCC (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	Yes
CT 557: Temperature - PCC (JTCP)	2024-05-10	2029-05-10	Active	Sarmad Dalal	Yes

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

Details for Thai La

First Name	Thai
Last Name	La
Status	Active

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

Details for Alfonso Arellano

First Name	Alfonso
Last Name	Arellano
Status	Active

Total 12 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 504: Air Content of PCC - Pressure Method (JTCP)	2017-10-28	2022-10-28	Expired	Sarbjit Grewal	Yes
CT 518: Unit Weight - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Sarbjit Grewal	Yes
CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231)	2016-04-28	2018-04-28	Expired	Seree Yenjai	Yes
CT 521.1: Compressive Strength - PCC (ASTM C39 / C617)	2016-04-28	2018-04-28	Expired	Seree Yenjai	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2016-04-28	2018-04-28	Expired	Seree Yenjai	No
CT 523.2 Section B.3: Flexural Strength (Lab Test)	2016-04-28	2018-04-28	Expired	Seree Yenjai	No
CT 524: Flexural Strength of Rapid Strength - PCC	2015-08-25	2016-08-25	Expired	Seree Yenjai	No
CT 539: Sampling Fresh Concrete (JTCP)	2016-04-28	2018-04-28	Expired	Seree Yenjai	Yes
CT 540: Making Cylinders - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Sarbjit Grewal	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2017-10-28	2022-10-28	Expired	Sarbjit Grewal	No
CT 556: Slump - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Sarbjit Grewal	Yes
CT 557: Temperature - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Sarbjit Grewal	Yes

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

Details for James Chris Vaughn

First Name	James Chris
Last Name	Vaughn
Status	Active

Total 13 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 AGG: Sampling - AGGREGATES	2025-01-04	2027-01-04	Active	Afsaneh Ostovar	Yes
CT 125 GEN: Sampling - GENERAL	2025-01-04	2027-01-04	Active	Afsaneh Ostovar	Yes
CT 125 HMA: Sampling - HMA	2025-01-04	2027-01-04	Active	Afsaneh Ostovar	Yes
CT 231: Relative Compaction - Nuclear Gage	2024-12-30	2026-12-30	Active	Babak Rezaei	Yes
CT 375: AC Density by Nuclear Gage	2024-12-30	2026-12-30	Active	Babak Rezaei	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	Yes
CT 518: Unit Weight - PCC (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	No
CT 539: Sampling Fresh Concrete (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	Yes
CT 540: Making Cylinders - PCC (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	No
CT 556: Slump - PCC (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	Yes
CT 557: Temperature - PCC (JTCP)	2022-06-24	2027-06-24	Active	Sarmad Dalal	Yes

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

Details for Dergham "Danny" Mahfoud

First Name	Dergham "Danny"
Last Name	Mahfoud
Status	Active

Total 13 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 AGG: Sampling - AGGREGATES	2024-10-09	2025-10-09	Expired	Jay Horton	Yes
CT 125 CEM: Sampling - CEM	2023-01-25	2024-01-25	Expired	Ashley Shaw	No
CT 125 GEN: Sampling - GENERAL	2024-10-09	2025-10-09	Expired	Jay Horton	Yes
CT 125 HMA: Sampling - HMA	2024-10-09	2025-10-09	Expired	Jay Horton	Yes
CT 231: Relative Compaction - Nuclear Gage	2024-10-09	2025-10-09	Expired	Jay Horton	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	Yes
CT 518: Unit Weight - PCC (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	Yes
CT 533: Ball Penetration - PCC	2021-04-05	2022-04-05	Expired	Ashley Shaw	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	Yes
CT 540: Making Cylinders - PCC (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	No
CT 556: Slump - PCC (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	Yes
CT 557: Temperature - PCC (JTCP)	2020-10-09	2025-10-09	Expired	Sarbjit Grewal	Yes

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

Details for Luis Castillo

First Name	Luis
Last Name	Castillo
Status	Active

Total 3 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 GEN: Sampling - GENERAL	2024-05-08	2025-05-08	Expired	Jay Horton	Yes
CT 231: Relative Compaction - Nuclear Gage	2024-05-08	2025-05-08	Expired	Jay Horton	Yes
CT 375: AC Density by Nuclear Gage	2024-05-08	2025-05-08	Expired	Jay Horton	Yes

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

Details for Jason Lewin

First Name	Jason
Last Name	Lewin
Status	Active

Total 8 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 504: Air Content of PCC - Pressure Method (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	Yes
CT 518: Unit Weight - PCC (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	No
CT 539: Sampling Fresh Concrete (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	Yes
CT 540: Making Cylinders - PCC (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	No
CT 556: Slump - PCC (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	Yes
CT 557: Temperature - PCC (JTCP)	2024-04-26	2029-04-26	Active	Sarmad Dalal	Yes

AASHTO/ASTM Proficiencies
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
No results found.

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