Lab details for Certerra Southwest LLC
Basic Information
| Lab Name | Certerra Southwest LLC |
|---|---|
| Manager Name | Jennifer Karr |
| Lab Email | jkarr@rmageoscience.com |
| Lab Telephone | 559-708-8865 |
| Lab Fax | |
| Lab Full Address | 3897 North Ann Avenue, Fresno, CA 93727 |
| Zip | 93727 |
| Lab Type | Private |
| District | 6 |
| Mobile Lab Full Address | , , |
RSP Information
3897 North Ann Avenue, Fresno, CA 93727
Test Methods
California Test (CT) Accreditations
Total 48 items.
AASHTO/ASTM Proficiencies
Total 17 items.
Technicians in the Lab
Technician Summary
Total 7 items.
| First Name | Last Name | Actions |
|---|---|---|
| Jason | Maduro | View |
| Kevin | Wilson | View |
| Brian | McNutt | View |
| Benjamin | Palmer | View |
| Rogelio | Cortez | View |
| Bryon S | Hamilton | View |
| Samuel | Wheeler | View |
Technician Details
Details for Jason Maduro
| First Name | Jason |
|---|---|
| Last Name | Maduro |
| Status | Active |
Total 34 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2025-05-09 | 2028-05-09 | Inactive | Firooz Ahmad Hosainy | Yes |
| CT 106: Definitions - Specific Gravity (SpG) | 2016-04-08 | 2023-06-30 | Expired | Jessa Dhaliwal | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 207: SpG & Absorption - Fine Aggregates | 2016-04-08 | 2017-04-08 | Expired | Jessa Dhaliwal | Yes |
| CT 211: LA Rattler | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 217: Sand Equivalent (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 227: Cleanness Value (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 229: Durability (JTCP) | 2025-05-09 | 2028-05-09 | Active | Firooz Ahmad Hosainy | Yes |
| CT 234: Uncompacted void - Fine Aggregates | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 235: Flat and Elongated Particles | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 301: "R" Value | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 304: Sample Preparation - HMA | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | No |
| CT 308: Bulk SpG and Density - HMA | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 309: Max SpG and Density - HMA | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 366: Stabilometer | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 367: OBC | 2022-08-16 | 2024-08-16 | Expired | David Small | Yes |
| CT 370: Moisture Content by Microwave | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 382: AC Content by Ignition Oven | 2024-08-22 | 2026-08-22 | Expired | Allen Oliver | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
| CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231) | 2026-07-29 | 2027-07-29 | Active | Allen Oliver | Yes |
| CT 521.1: Compressive Strength - PCC (ASTM C39 / C617) | 2023-08-24 | 2024-08-24 | Expired | Sarbjit Grewal | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
| CT 556: Slump - PCC (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
| CT 557: Temperature - PCC (JTCP) | 2016-07-16 | 2021-07-16 | Expired | Richard Hibbard | Yes |
Total 14 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO T30: Mechanical Analysis of Extracted Aggregate (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | No |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP) | 2023-09-15 | 2026-09-24 | Active | Avinash Ralla | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO T209: Max SpG and Density - HMA (JTCP) | 2023-09-15 | 2026-09-24 | Active | Avinash Ralla | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO T269: Percent Air Voids - HMA (JTCP) | 2023-09-15 | 2026-09-24 | Active | Avinash Ralla | Yes |
| AASHTO T275: Bulk SpG - HMA (JTCP) | 2023-09-15 | 2026-09-24 | Active | Avinash Ralla | Yes |
| AASHTO T308: AC Content (Ignition Oven) - HMA (JTCP) | 2023-09-15 | 2026-09-24 | Active | Avinash Ralla | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2026-01-16 | 2029-01-16 | Active | Wei Geng | Yes |
Details for Kevin Wilson
| First Name | Kevin |
|---|---|
| Last Name | Wilson |
| Status | Active |
Total 14 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 125 AGG: Sampling - AGGREGATES | 2025-04-17 | 2027-04-17 | Active | Allen Oliver | Yes |
| CT 125 BIT: Sampling - BITUMINOUS | 2021-04-21 | 2023-04-21 | Expired | Martiniano Ruiz | Yes |
| CT 125 GEN: Sampling - GENERAL | 2021-04-21 | 2023-04-21 | Expired | Martiniano Ruiz | Yes |
| CT 125 HMA: Sampling - HMA | 2025-04-17 | 2027-04-17 | Active | Allen Oliver | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-17 | 2027-04-17 | Active | Allen Oliver | Yes |
| CT 375: AC Density by Nuclear Gage | 2025-05-02 | 2027-05-02 | Active | Allen Oliver | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 556: Slump - PCC (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| CT 557: Temperature - PCC (JTCP) | 2022-03-11 | 2027-03-11 | Active | Dalton LaBoskey | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Brian McNutt
| First Name | Brian |
|---|---|
| Last Name | McNutt |
| Status | Active |
Total 8 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 556: Slump - PCC (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| CT 557: Temperature - PCC (JTCP) | 2023-09-29 | 2028-09-29 | Active | Firooz Ahmad Hosainy | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Benjamin Palmer
| First Name | Benjamin |
|---|---|
| Last Name | Palmer |
| Status | Active |
Total 8 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 556: Slump - PCC (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| CT 557: Temperature - PCC (JTCP) | 2024-06-28 | 2029-06-28 | Active | Sarmad Dalal | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Rogelio Cortez
| First Name | Rogelio |
|---|---|
| Last Name | Cortez |
| Status | Active |
Total 11 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 125 HMA: Sampling - HMA | 2025-10-23 | 2026-10-23 | Active | Allen Oliver | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-09-30 | 2026-09-30 | Active | Allen Oliver | Yes |
| CT 375: AC Density by Nuclear Gage | 2025-09-30 | 2026-09-30 | Active | Allen Oliver | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 556: Slump - PCC (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| CT 557: Temperature - PCC (JTCP) | 2022-08-15 | 2027-08-15 | Active | Sarmad Dalal | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Bryon S Hamilton
| First Name | Bryon S |
|---|---|
| Last Name | Hamilton |
| Status | Active |
Total 10 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 125 AGG: Sampling - AGGREGATES | 2026-07-29 | 2027-07-29 | Active | Allen Oliver | Yes |
| CT 125 HMA: Sampling - HMA | 2026-07-29 | 2027-07-29 | Active | Allen Oliver | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 556: Slump - PCC (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| CT 557: Temperature - PCC (JTCP) | 2025-07-25 | 2030-07-25 | Active | Gabriela Lopez | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Samuel Wheeler
| First Name | Samuel |
|---|---|
| Last Name | Wheeler |
| Status | Active |
Total 8 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 556: Slump - PCC (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| CT 557: Temperature - PCC (JTCP) | 2024-10-04 | 2029-10-04 | Active | Gabriela Lopez | Yes |
| 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