Lab details for Terracon Consultants, Incorporated
Basic Information
| Lab Name | Terracon Consultants, Incorporated |
|---|---|
| Manager Name | Mijjal Tamrakar |
| Lab Email | mijjal.tamrakar@terracon.com |
| Lab Telephone | 925-348-9060 |
| Lab Fax | |
| Lab Full Address | 2190 Meridian Park Boulevard, Suite M, Concord, CA 94520 |
| Zip | 94520 |
| Lab Type | Private |
| District | 4 |
| Mobile Lab Full Address | , , |
RSP Information
2190 Meridian Park Blvd, Suite M, Concord, CA 94520
Test Methods
California Test (CT) Accreditations
Total 37 items.
AASHTO/ASTM Proficiencies
Total 9 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Technician Certified? |
|---|---|---|---|---|---|
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T209: Max SpG and Density - HMA (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T269: Percent Air Voids - HMA (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
Technicians in the Lab
Technician Summary
Total 7 items.
| First Name | Last Name | Actions |
|---|---|---|
| Mijjal | Tamrakar | View |
| Eddie | Harrison | View |
| Sadeed | Saboor | View |
| Jay | Ayala | View |
| Sameh | Gras | View |
| Tad | Steiner | View |
| Alison | Rutan-Treasure | View |
Technician Details
Details for Mijjal Tamrakar
| First Name | Mijjal |
|---|---|
| Last Name | Tamrakar |
| Status | Active |
Total 39 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2024-01-05 | 2025-01-24 | Expired | Sarmad Dalal | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 204: LL, PL, PI | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 206: SpG & Absorption - Coarse Aggregates | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 207: SpG & Absorption - Fine Aggregates | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 211: LA Rattler | 2023-02-22 | 2025-02-22 | Expired | David Small | No |
| CT 212: Unit Weight of Aggregates | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 213: Organic Impurities of PCC sand | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 217: Sand Equivalent (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 227: Cleanness Value (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 229: Durability (JTCP) | 2024-01-05 | 2027-01-05 | Active | Firooz Ahmad Hosainy | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 301: "R" Value | 2025-05-07 | 2027-05-07 | Active | David Small | Yes |
| CT 304: Sample Preparation - HMA | 2025-05-07 | 2027-05-07 | Active | David Small | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| CT 308: Bulk SpG and Density - HMA | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 309: Max SpG and Density - HMA | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 366: Stabilometer | 2025-05-07 | 2027-05-07 | Active | David Small | Yes |
| CT 370: Moisture Content by Microwave | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 375: AC Density by Nuclear Gage | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 382: AC Content by Ignition Oven | 2023-02-22 | 2025-02-22 | Expired | David Small | No |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
| CT 521.2: Compressive Strength - PCC (ASTM C39 / C1231) | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 521.1: Compressive Strength - PCC (ASTM C39 / C617) | 2025-04-15 | 2027-04-15 | Active | Joshua Gallaway | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2021-01-15 | 2026-01-15 | Active | David Small | No |
| CT 523.2 Section B.3: Flexural Strength (Lab Test) | 2023-02-22 | 2025-02-22 | Expired | David Small | No |
| CT 524: Flexural Strength of Rapid Strength - PCC | 2023-02-22 | 2025-02-22 | Expired | David Small | No |
| CT 539: Sampling Fresh Concrete (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
| CT 556: Slump - PCC (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
| CT 557: Temperature - PCC (JTCP) | 2021-01-15 | 2026-01-15 | Active | Sarbjit Grewal | Yes |
Total 14 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | No |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | No |
| AASHTO T30: Mechanical Analysis of Extracted Aggregate (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | No |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP) | 2023-11-15 | 2026-11-15 | Active | Gabriela Lopez | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| AASHTO T209: Max SpG and Density - HMA (JTCP) | 2023-11-15 | 2026-11-15 | Active | Gabriela Lopez | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| AASHTO T269: Percent Air Voids - HMA (JTCP) | 2023-11-15 | 2026-11-15 | Active | Gabriela Lopez | Yes |
| AASHTO T275: Bulk SpG - HMA (JTCP) | 2023-11-15 | 2026-11-15 | Active | Gabriela Lopez | No |
| AASHTO T308: AC Content (Ignition Oven) - HMA (JTCP) | 2023-11-15 | 2026-11-15 | Active | Gabriela Lopez | No |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2025-01-24 | 2028-01-24 | Active | Gabriela Lopez | Yes |
Details for Eddie Harrison
| First Name | Eddie |
|---|---|
| Last Name | Harrison |
| Status | Active |
Total 17 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 125 AGG: Sampling - AGGREGATES | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 125 GEN: Sampling - GENERAL | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | Yes |
| CT 125 HMA: Sampling - HMA | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 217: Sand Equivalent (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 227: Cleanness Value (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 229: Durability (JTCP) | 2019-01-18 | 2022-01-18 | Expired | Richard Hibbard | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-17 | 2026-04-17 | Active | Joshua Gallaway | Yes |
| CT 366: Stabilometer | 2021-11-16 | 2022-11-16 | Expired | Ed Gamboa | Yes |
| CT 375: AC Density by Nuclear Gage | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 389: Hamburg Wheel-Track | 2021-11-16 | 2022-11-16 | Expired | Ed Gamboa | No |
Total 20 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | No |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | No |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | Yes |
| AASHTO T84: SpG & Absorption - Fine Aggregates | 2021-11-15 | 2022-11-15 | Expired | Ed Gamboa | No |
| AASHTO T85: SpG & Absorption - Coarse Aggregates | 2021-11-15 | 2022-11-15 | Expired | Ed Gamboa | No |
| AASHTO T96: L.A. Rattler | 2021-11-15 | 2022-11-15 | Expired | Ed Gamboa | No |
| AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP) | 2020-09-11 | 2023-09-11 | Expired | Dalton LaBoskey | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | Yes |
| AASHTO T209: Max SpG and Density - HMA (JTCP) | 2020-09-11 | 2023-09-11 | Expired | Dalton LaBoskey | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2022-08-16 | 2025-08-16 | Active | Shaya Meisamifard | Yes |
| AASHTO T269: Percent Air Voids - HMA (JTCP) | 2020-09-11 | 2023-09-11 | Expired | Dalton LaBoskey | Yes |
| AASHTO T275: Bulk SpG - HMA (JTCP) | 2020-09-11 | 2023-09-11 | Expired | Dalton LaBoskey | No |
| AASHTO T283: Moisture Induced Damage (TSR) | 2021-11-15 | 2022-11-15 | Expired | Ed Gamboa | No |
| AASHTO T304: Uncompacted Void - Fine Aggregate | 2021-11-22 | 2022-11-22 | Expired | Ed Gamboa | No |
| AASHTO T308: AC Content (Ignition Oven) - HMA (JTCP) | 2020-09-11 | 2023-09-11 | Expired | Dalton LaBoskey | No |
| AASHTO T312: Gyratory Compactor | 2021-11-16 | 2022-11-16 | Expired | Ed Gamboa | No |
| AASHTO T324: Hamburg Wheel-Track | 2021-11-16 | 2022-11-16 | Expired | Ed Gamboa | No |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2019-08-16 | 2022-08-16 | Expired | Shaya Meisamifard | Yes |
Details for Sadeed Saboor
| First Name | Sadeed |
|---|---|
| Last Name | Saboor |
| Status | Active |
Total 1 item.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 125 GEN: Sampling - GENERAL | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Jay Ayala
| First Name | Jay |
|---|---|
| Last Name | Ayala |
| Status | Active |
Total 5 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 125 AGG: Sampling - AGGREGATES | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 125 GEN: Sampling - GENERAL | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 125 HMA: Sampling - HMA | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 375: AC Density by Nuclear Gage | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Sameh Gras
| First Name | Sameh |
|---|---|
| Last Name | Gras |
| Status | Active |
Total 5 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 125 AGG: Sampling - AGGREGATES | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| CT 125 GEN: Sampling - GENERAL | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| CT 125 HMA: Sampling - HMA | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| CT 375: AC Density by Nuclear Gage | 2025-04-15 | 2026-04-15 | Active | Joshua Gallaway | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Tad Steiner
| First Name | Tad |
|---|---|
| Last Name | Steiner |
| Status | Active |
Total 7 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 204: LL, PL, PI | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 206: SpG & Absorption - Coarse Aggregates | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 207: SpG & Absorption - Fine Aggregates | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 212: Unit Weight of Aggregates | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 213: Organic Impurities of PCC sand | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 308: Bulk SpG and Density - HMA | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 309: Max SpG and Density - HMA | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
No results found. | |||||
Details for Alison Rutan-Treasure
| First Name | Alison |
|---|---|
| Last Name | Rutan-Treasure |
| Status | Active |
Total 7 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 204: LL, PL, PI | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 206: SpG & Absorption - Coarse Aggregates | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 207: SpG & Absorption - Fine Aggregates | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 212: Unit Weight of Aggregates | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 213: Organic Impurities of PCC sand | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 308: Bulk SpG and Density - HMA | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | Yes |
| CT 309: Max SpG and Density - HMA | 2025-04-09 | 2026-04-09 | Active | Joshua Gallaway | 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