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Technician Information for Ralph Tan
| First Name | Ralph |
|---|
| Last Name | Tan |
|---|
| Technician ID | 03602 |
|---|
Total 2 items.
| Lab Name | Manager Name | Full Address | District | Page Alias |
|---|
| ENGEO, Incorporated | Derek Seibold | 2633 Camino Ramon, Suite 150, San Ramon, CA 94583 | 4 | Lab 1 |
| ENGEO, Incorporated | Donny Bryant | 17278 Golden Valley Parkway, Lathrop, CA 95330 | 10 | Lab 2 |
California Test (CT) Certifications
Total 16 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|
| CT 125 GEN Sampling - GENERAL | 2021-11-05 | 2023-11-05 | Expired | Ignocencio Herrera | Lab 1, Lab 2 | (No comments) |
| CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A) | 2021-11-05 | 2024-11-05 | Expired | Ignocencio Herrera | Lab 1, Lab 2 | (No comments) |
| CT 125 HMA Sampling - HMA (JTCP - HMA I) | 2021-11-05 | 2024-11-05 | Expired | Ignocencio Herrera | Lab 1, Lab 2 | (No comments) |
| CT 231 Relative Compaction - Nuclear Gage | 2023-10-26 | 2025-10-26 | Active | Ed Gamboa | Lab 1, Lab 2 | (No comments) |
| CT 375 AC Density by Nuclear Gage | 2023-10-26 | 2025-10-26 | Active | Ed Gamboa | Lab 1, Lab 2 | (No comments) |
| CT 504 Air Content of PCC - Pressure Method (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 518 Unit Weight - PCC (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 523.1 Section B.1 & B.2 Flexural Strength (Field Fabrication) (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | (No lab) | (No comments) |
| CT 533 Ball Penetration - PCC | 2023-04-12 | 2024-04-12 | Expired | Ed Gamboa | Lab 1, Lab 2 | (No comments) |
| CT 539 Sampling Fresh Concrete (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 540 Making Cylinders - PCC (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 556 Slump - PCC (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 557 Temperature - PCC (JTCP - PCC) | 2023-09-22 | 2028-09-22 | Active | Firooz Ahmad Hosainy | Lab 1, Lab 2 | (No comments) |
| CT 125 AGG Sampling - AGGREGATES | 2023-10-26 | 2025-10-26 | Active | Ed Gamboa | Lab 1, Lab 2 | (No comments) |
| CT 125 HMA Sampling - HMA | 2023-10-26 | 2025-10-26 | Active | Ed Gamboa | Lab 1, Lab 2 | (No comments) |
AASHTO/ASTM Proficiencies
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