Technician Information for Steven Chang
| First Name | Steven |
|---|---|
| Last Name | Chang |
| Technician ID | 02144 |
Associated Labs
Total 3 items.
| Lab Name | Manager Name | Full Address | District | Page Alias |
|---|---|---|---|---|
| Atlas Technical Consultants Mobile Lab #2 | Samir El-Chammas | 431 South Broadway, Blythe, CA 92225 | 8 | Lab 1 |
| Atlas | Austin Hill | 9085 Aero Drive, Suite B, San Diego, CA 92123 | 11 | Lab 2 |
| Atlas Technical Consultants - Whittier | Samir El-Chammas | 12409 Slauson Avenue, Suite I, Whittier, CA 90606 | 7 | Lab 3 |
Test Methods
California Test (CT) Certifications
Total 36 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|---|
| CT 105 Calculations - Gradings (JTCP - HMA I / S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 125 ADMIX Sampling - ADMIXTURE | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 125 BIT Sampling - BITUMINOUS | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 125 CEM Sampling - CEM | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 125 GEN Sampling - GENERAL | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 205 Percent Crushed Particles (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 2 | (No comments) |
| CT 206 SpG & Absorption - Coarse Aggregates | 2025-09-26 | 2027-09-26 | Active | Antonio Torres | Lab 2 | (No comments) |
| CT 207 SpG & Absorption - Fine Aggregates | 2025-09-26 | 2027-09-26 | Active | Antonio Torres | Lab 2 | (No comments) |
| CT 209 SpG for Soil | 2018-09-13 | 2020-09-13 | Expired | Brandt Houchen | Lab 2 | (No comments) |
| CT 211 LA Rattler | 2024-08-28 | 2026-08-28 | Active | Jay Horton | Lab 2 | (No comments) |
| CT 213 Organic Impurities of PCC sand | 2025-09-26 | 2027-09-26 | Active | Antonio Torres | Lab 2 | (No comments) |
| CT 214 Sodium Sulfate Soundness | 2025-09-26 | 2027-09-26 | Active | Antonio Torres | Lab 2 | (No comments) |
| CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 217 Sand Equivalent (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 227 Cleanness Value (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 229 Durability (JTCP - S&A) | 2024-11-22 | 2027-11-22 | Active | Sarmad Dalal | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 231 Relative Compaction - Nuclear Gage | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 235 Flat and Elongated Particles | 2017-12-20 | 2018-12-20 | Expired | Chad Claxton | Lab 2 | (No comments) |
| CT 504 Air Content of PCC - Pressure Method (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 515 Relative Mortar Strength PCC Sand | 2024-12-02 | 2025-12-02 | Expired | Jay Horton | Lab 2 | (No comments) |
| CT 518 Unit Weight - PCC (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 521.1 Compressive Strength - PCC (ASTM C39 / C617) | 2024-05-01 | 2026-05-01 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | Created based on CT521 certificate ID29786 |
| CT 521.2 Compressive Strength - PCC (ASTM C39 / C1231) | 2024-05-01 | 2026-05-01 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | Created based on CT521 certificate ID29786 |
| CT 523.2 Section B.3 Flexural Strength (Lab Test) | 2024-05-01 | 2026-05-01 | Active | Jay Horton | Lab 2, Lab 3 | (No comments) |
| CT 524 Flexural Strength of Rapid Strength - PCC | 2024-05-01 | 2026-05-01 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 533 Ball Penetration - PCC | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 539 Sampling Fresh Concrete (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 540 Making Cylinders - PCC (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 2 | (No comments) |
| CT 552 Relative Compaction of Polymer Concrete | 2026-02-10 | 2027-02-10 | Active | Jay Horton | Lab 1, Lab 3 | (No comments) |
| CT 556 Slump - PCC (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 1, Lab 2, Lab 3 | (No comments) |
| CT 557 Temperature - PCC (JTCP - PCC) | 2015-05-02 | 2020-05-02 | Expired | Biplab Bhattacharya | Lab 1, Lab 2, Lab 3 | (No comments) |
AASHTO/ASTM Proficiencies
Total 5 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|---|
| AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II) | 2025-11-20 | 2028-11-20 | Active | Gabriela Lopez | Lab 1, Lab 2, Lab 3 | (No comments) |
| AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II) | 2025-11-20 | 2028-11-20 | Active | Gabriela Lopez | Lab 2, Lab 3 | (No comments) |
| AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II) | 2025-11-20 | 2028-11-20 | Active | Gabriela Lopez | Lab 2, Lab 3 | (No comments) |
| AASHTO T275 Bulk SpG - HMA (JTCP - HMA II) | 2025-11-20 | 2028-11-20 | Active | Gabriela Lopez | Lab 2, Lab 3 | (No comments) |
| AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II) | 2025-11-20 | 2028-11-20 | Active | Gabriela Lopez | Lab 2, Lab 3 | (No comments) |
JTCP Sessions
Total 1 item.
| JTCP Training Code | JTCP Training Start Date | JTCP Training End Date |
|---|---|---|
| HMA2_LB0142 | 2025-11-18 | 2025-11-20 |
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