Caltrans SIAD - Lab Information for Sierra Material Testing & Inspection

Lab details for Sierra Material Testing & Inspection

Basic Information

Lab Name	Sierra Material Testing & Inspection
Manager Name	Alex Rojas
Lab Email	alex@sierramti.com
Lab Telephone	760-337-2067
Lab Fax	760-337-1926
Lab Full Address	1003 Industry Way, Suite A, El Centro, CA 92243
Zip	92243
Lab Type	Private
District	11
Mobile Lab Full Address	, ,

Download TL-0113

RSP Information

RSP Shipping Address: 1003 Industry Way, Suite A, El Centro, CA 92243

Test Methods

California Test (CT) Accreditations

Total 43 items.

Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Technician Certified?	Comments
CT 105: Calculations - Gradings (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 106: Definitions - Specific Gravity (SpG)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 ADMIX: Sampling - ADMIXTURE	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 AGG: Sampling - AGGREGATES (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 125 AGG: Sampling - AGGREGATES	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 BIT: Sampling - BITUMINOUS	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 CEM: Sampling - CEM	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 GEN: Sampling - GENERAL	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 HMA: Sampling - HMA (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 125 HMA: Sampling - HMA	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 201: Sample Preparation - Soil and Aggregates (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 204: LL, PL, PI	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 205: Percent Crushed Particles (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 206: SpG & Absorption - Coarse Aggregates	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 207: SpG & Absorption - Fine Aggregates	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 208: Apparent SpG - Fine Aggregates	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 209: SpG for Soil	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 213: Organic Impurities of PCC sand	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 216: Relative Compaction - Soils and Aggregates (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 217: Sand Equivalent (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 226: Moisture Content - Soils and Aggregates (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 227: Cleanness Value (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 229: Durability (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 231: Relative Compaction - Nuclear Gage	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 301: "R" Value	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 304: Sample Preparation - HMA	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 308: Bulk SpG and Density - HMA	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 309: Max SpG and Density - HMA	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 366: Stabilometer	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 375: AC Density by Nuclear Gage	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 382: AC Content by Ignition Oven	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 504: Air Content of PCC - Pressure Method (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 518: Unit Weight - PCC (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 521.1: Compressive Strength - PCC (ASTM C39 / C617)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 533: Ball Penetration - PCC	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	No	(not set)
CT 539: Sampling Fresh Concrete (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 540: Making Cylinders - PCC (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 556: Slump - PCC (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	Yes	(not set)
CT 557: Temperature - PCC (JTCP)	2025-07-24	2026-07-24	Active	Roy(Chip) Denner	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 9 items.

First Name	Last Name	Actions
Ignacio	Hernandez	View
Paul	Gastelum	View
Mario	Muro	View
Sergio	Villanueva	View
Raul	Gonzalez	View
Ernesto	Lopez	View
Carlos	Cardenas	View
Natone	Morgan	View
Christian	Ubaldo Martinez	View

Technician Details

Details for Ignacio Hernandez

First Name	Ignacio
Last Name	Hernandez
Status	Active

Total 14 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 AGG: Sampling - AGGREGATES (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 125 GEN: Sampling - GENERAL	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 213: Organic Impurities of PCC sand	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 231: Relative Compaction - Nuclear Gage	2016-11-07	2017-11-07	Expired	Afsaneh Ostovar	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 518: Unit Weight - PCC (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 521.1: Compressive Strength - PCC (ASTM C39 / C617)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2016-11-07	2017-11-07	Expired	Afsaneh Ostovar	Yes
CT 523.2 Section B.3: Flexural Strength (Lab Test)	2016-11-07	2017-11-07	Expired	Afsaneh Ostovar	No
CT 539: Sampling Fresh Concrete (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 540: Making Cylinders - PCC (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 556: Slump - PCC (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 557: Temperature - PCC (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes

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

Details for Paul Gastelum

First Name	Paul
Last Name	Gastelum
Status	Active

Total 14 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 AGG: Sampling - AGGREGATES (JTCP)	2018-11-27	2020-11-27	Expired	Afsaneh Ostovar	Yes
CT 125 AGG: Sampling - AGGREGATES	2021-02-26	2023-02-26	Expired	Afsaneh Ostovar	Yes
CT 125 GEN: Sampling - GENERAL	2021-02-26	2023-02-26	Expired	Afsaneh Ostovar	Yes
CT 125 HMA: Sampling - HMA (JTCP)	2018-11-27	2020-11-27	Expired	Afsaneh Ostovar	Yes
CT 125 HMA: Sampling - HMA	2021-02-26	2023-02-26	Expired	Afsaneh Ostovar	Yes
CT 231: Relative Compaction - Nuclear Gage	2024-03-07	2026-03-07	Active	Roy(Chip) Denner	Yes
CT 375: AC Density by Nuclear Gage	2024-03-07	2026-03-07	Active	Roy(Chip) Denner	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes
CT 518: Unit Weight - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes
CT 540: Making Cylinders - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes
CT 556: Slump - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes
CT 557: Temperature - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Biplab Bhattacharya	Yes

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

Details for Mario Muro

First Name	Mario
Last Name	Muro
Status	Active

Total 27 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 106: Definitions - Specific Gravity (SpG)	2016-11-09	2023-06-30	Expired	Afsaneh Ostovar	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)	2017-11-17	2018-11-17	Expired	Roy(Chip) Denner	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 301: "R" Value	2025-07-24	2027-07-24	Active	Roy(Chip) Denner	Yes
CT 304: Sample Preparation - HMA	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 308: Bulk SpG and Density - HMA	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 309: Max SpG and Density - HMA	2017-11-17	2019-11-17	Expired	Afsaneh Ostovar	Yes
CT 366: Stabilometer	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 382: AC Content by Ignition Oven	2017-11-17	2019-11-17	Expired	Afsaneh Ostovar	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 518: Unit Weight - PCC (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231)	2025-07-24	2027-07-24	Active	Roy(Chip) Denner	Yes
CT 521.1: Compressive Strength - PCC (ASTM C39 / C617)	2025-07-24	2027-07-24	Active	Roy(Chip) Denner	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 540: Making Cylinders - PCC (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 556: Slump - PCC (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes
CT 557: Temperature - PCC (JTCP)	2021-10-31	2026-10-31	Active	Dalton LaBoskey	Yes

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

Details for Sergio Villanueva

First Name	Sergio
Last Name	Villanueva
Status	Active

Total 15 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 AGG: Sampling - AGGREGATES (JTCP)	2017-11-27	2020-11-27	Expired	Afsaneh Ostovar	Yes
CT 125 CEM: Sampling - CEM	2018-11-27	2020-11-27	Expired	Afsaneh Ostovar	Yes
CT 125 GEN: Sampling - GENERAL	2018-11-27	2020-11-27	Expired	Afsaneh Ostovar	Yes
CT 125 HMA: Sampling - HMA (JTCP)	2017-11-27	2020-11-27	Expired	Afsaneh Ostovar	Yes
CT 216: Relative Compaction - Soils and Aggregates (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 226: Moisture Content - Soils and Aggregates (JTCP)	2017-11-17	2018-11-17	Expired	Afsaneh Ostovar	Yes
CT 231: Relative Compaction - Nuclear Gage	2018-11-27	2019-11-27	Expired	Afsaneh Ostovar	Yes
CT 375: AC Density by Nuclear Gage	2018-11-27	2019-11-27	Expired	Afsaneh Ostovar	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes
CT 518: Unit Weight - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes
CT 540: Making Cylinders - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes
CT 556: Slump - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes
CT 557: Temperature - PCC (JTCP)	2018-06-01	2023-06-01	Expired	Richard Hibbard	Yes

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

Details for Raul Gonzalez

First Name	Raul
Last Name	Gonzalez
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 Ernesto Lopez

First Name	Ernesto
Last Name	Lopez
Status	Active

Total 7 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	Jasdeep Sandhu	Yes
CT 518: Unit Weight - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Jasdeep Sandhu	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2017-10-28	2022-10-28	Expired	Jasdeep Sandhu	Yes
CT 540: Making Cylinders - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Jasdeep Sandhu	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2017-10-28	2022-10-28	Expired	Jasdeep Sandhu	Yes
CT 556: Slump - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Jasdeep Sandhu	Yes
CT 557: Temperature - PCC (JTCP)	2017-10-28	2022-10-28	Expired	Jasdeep Sandhu	Yes

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

Details for Carlos Cardenas

First Name	Carlos
Last Name	Cardenas
Status	Active

Total 10 items.

Certified California Tests(CT)
Test Method	Obtained Date	Expiration Date	Status	IA Responsible	Within Lab Scope?
CT 125 AGG: Sampling - AGGREGATES	2021-02-26	2022-02-26	Expired	Afsaneh Ostovar	Yes
CT 125 GEN: Sampling - GENERAL	2021-02-26	2022-02-26	Expired	Afsaneh Ostovar	Yes
CT 504: Air Content of PCC - Pressure Method (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 518: Unit Weight - PCC (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 540: Making Cylinders - PCC (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 556: Slump - PCC (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes
CT 557: Temperature - PCC (JTCP)	2023-11-06	2028-11-06	Active	Firooz Ahmad Hosainy	Yes

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

Details for Natone Morgan

First Name	Natone
Last Name	Morgan
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)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 518: Unit Weight - PCC (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 539: Sampling Fresh Concrete (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 540: Making Cylinders - PCC (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 543: Air Content of PCC - Volumetric Method (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 556: Slump - PCC (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes
CT 557: Temperature - PCC (JTCP)	2022-06-10	2027-06-10	Active	Dalton LaBoskey	Yes

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

Details for Christian Ubaldo Martinez

First Name	Christian
Last Name	Ubaldo Martinez
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.

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