SIAD: Certificates for Derek Seibold
UNOFFICIAL COPY
Certificates for Derek Seibold
Basic Information
| First Name | Derek |
|---|---|
| Last Name | Seibold |
| Status | Active |
Associated Labs
Total 1 item.
| 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 |
Test Methods
California Test (CT) Certifications
Total 16 items.
| Test Method | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|
| CT 105 Calculations - Gradings (JTCP - HMA I / S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 106 Definitions - Specific Gravity (SpG) | 2023-06-30 | Expired | David Small | Lab 1 | (No comments) |
| CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A) | 2026-09-29 | Active | Benjamin Martinez | Lab 1 | Disregard Suspension. CSP@dot.ca.gov |
| CT 205 Percent Crushed Particles (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 217 Sand Equivalent (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 227 Cleanness Value (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 229 Durability (JTCP - S&A) | 2026-09-29 | Active | Gabriela Lopez | Lab 1 | (No comments) |
| CT 301 "R" Value | 2025-02-01 | Expired | David Small | Lab 1 | (No comments) |
| CT 308 Bulk SpG and Density - HMA | 2020-11-20 | Expired | David Small | Lab 1 | (No comments) |
| CT 309 Max SpG and Density - HMA | 2020-11-20 | Expired | David Small | Lab 1 | (No comments) |
| CT 366 Stabilometer | 2020-11-20 | Expired | David Small | Lab 1 | (No comments) |
| CT 643 Resistivity and pH Measurements | 2021-05-07 | Expired | David Small | Lab 1 | (No comments) |
AASHTO/ASTM Proficiencies
| Test Method | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|
No results found. | |||||
For concerns with missing or erroneous data, please contact your Independent Assurance personnel