Technician Information for David Walker
| First Name | David |
|---|---|
| Last Name | Walker |
| Technician ID | 02585 |
Associated Labs
Total 4 items.
| Lab Name | Manager Name | Full Address | District | Page Alias |
|---|---|---|---|---|
| Martin Marietta | David Walker | 12560 CA-67, Lakeside, CA 92040 | 11 | Lab 1 |
| Martin Marietta - Coachella | David Walker | 88200 Fargo Canyon Road, Coachella, CA 92236 | 8 | Lab 2 |
| Martin Marietta Slaughterhouse Lab | David Walker | 12535 Vigilante Road, Lakeside, CA 92040 | 11 | Lab 3 |
| Martin Marietta Lake Elsinore Lab | David Walker | 10000 Nichols Road, Lake Elsinore, CA 92532 | 7 | Lab 4 |
Test Methods
California Test (CT) Certifications
Total 31 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|---|
| CT 105 Calculations - Gradings (JTCP - HMA I / S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1, Lab 2, Lab 4 | (No comments) |
| CT 106 Definitions - Specific Gravity (SpG) | 2025-08-05 | 2028-08-05 | Active | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 125 AGG Sampling - AGGREGATES | 2021-12-06 | 2022-12-06 | Expired | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A) | 2025-10-08 | 2028-10-08 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 125 BIT Sampling - BITUMINOUS | 2025-06-30 | 2026-06-30 | Active | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 125 GEN Sampling - GENERAL | 2021-12-06 | 2022-12-06 | Expired | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 125 HMA Sampling - HMA | 2021-12-06 | 2022-12-06 | Expired | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 125 HMA Sampling - HMA (JTCP - HMA I) | 2025-10-08 | 2028-10-08 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 205 Percent Crushed Particles (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1 | (No comments) |
| CT 206 SpG & Absorption - Coarse Aggregates | 2023-11-30 | 2025-11-30 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 207 SpG & Absorption - Fine Aggregates | 2023-11-30 | 2025-11-30 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 211 LA Rattler | 2023-11-30 | 2025-11-30 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 217 Sand Equivalent (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 227 Cleanness Value (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1, Lab 3 | (No comments) |
| CT 229 Durability (JTCP - S&A) | 2023-03-10 | 2026-03-10 | Active | David Medina | Lab 1 | (No comments) |
| CT 234 Uncompacted void - Fine Aggregates | 2025-08-05 | 2026-08-05 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 235 Flat and Elongated Particles | 2025-06-30 | 2026-06-30 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 304 Sample Preparation - HMA | 2023-03-14 | 2025-03-14 | Expired | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I) | 2025-10-08 | 2028-10-08 | Active | Sarmad Dalal | (No lab) | (No comments) |
| CT 308 Bulk SpG and Density - HMA | 2023-03-14 | 2025-03-14 | Expired | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 309 Max SpG and Density - HMA | 2025-06-30 | 2026-06-30 | Active | Roy(Chip) Denner | Lab 1, Lab 3 | (No comments) |
| CT 366 Stabilometer | 2022-03-01 | 2023-03-01 | Expired | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 367 OBC | 2023-09-07 | 2024-09-07 | Expired | Roy(Chip) Denner | Lab 1, Lab 3 | (No comments) |
| CT 370 Moisture Content by Microwave | 2023-11-30 | 2025-11-30 | Active | Roy(Chip) Denner | Lab 1, Lab 2 | (No comments) |
| CT 371 Moisture Induced Damage (TSR) | 2025-06-30 | 2026-06-30 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
| CT 382 AC Content by Ignition Oven | 2023-11-30 | 2025-11-30 | Active | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 384 Combined Grade for HMA using up to 25% RAP | 2024-10-15 | 2026-10-15 | Active | Roy(Chip) Denner | Lab 1, Lab 2, Lab 3, Lab 4 | (No comments) |
| CT 389 Hamburg Wheel-Track | 2023-11-30 | 2025-11-30 | Active | Roy(Chip) Denner | Lab 1 | (No comments) |
AASHTO/ASTM Proficiencies
Total 25 items.
JTCP Sessions
Total 1 item.
| JTCP Training Code | JTCP Training Start Date | JTCP Training End Date |
|---|---|---|
| HMA1_RC_LB0009 | 2025-10-07 | 2025-10-08 |
For concerns with missing or erroneous data, please contact your Independent Assurance personnel