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Lab details for Sierra Material Testing & Inspection
Basic Information
| Lab Name | Sierra Material Testing & Inspection |
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| Manager Name | Alex Rojas |
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| Lab Email | alex@sierramti.com |
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| Lab Telephone | 760-337-2067 |
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| Lab Fax | 760-337-1926 |
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| Lab Full Address | 1003 Industry Way, Suite A, El Centro, CA 92243 |
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| Zip | 92243 |
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| Lab Type | Private |
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| District | 11 |
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| Mobile Lab Full Address | , , |
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Download TL-0113
RSP Information
1003 Industry Way, Suite A, El Centro, CA 92243
California Test (CT) Accreditations
AASHTO/ASTM Proficiencies
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Technician Certified? |
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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 |
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| Last Name | Hernandez |
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| Status | Active |
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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 |
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| Last Name | Gastelum |
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| Status | Active |
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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 |
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| Last Name | Muro |
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| Status | Active |
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Total 27 items.
Certified California Tests(CT)
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
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| 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 |
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| Last Name | Villanueva |
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| Status | Active |
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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 |
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| Last Name | Gonzalez |
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| Status | Active |
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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 |
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| Last Name | Lopez |
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| Status | Active |
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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 |
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| Last Name | Cardenas |
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| Status | Active |
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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 |
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| Last Name | Morgan |
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| Status | Active |
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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 |
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| Last Name | Ubaldo Martinez |
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| Status | Active |
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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. |
For concerns with missing or erroneous data, please contact your Independent Assurance personnel