Technician Information for Derek Seibold

First NameDerek
Last NameSeibold
Technician ID03767

Associated Labs

Total 1 item.
Lab NameManager NameFull AddressDistrictPage Alias
ENGEO, IncorporatedDerek Seibold2633 Camino Ramon, Suite 150, San Ramon, CA 945834Lab 1

Test Methods

California Test (CT) Certifications

Total 16 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2018-11-202023-06-30ExpiredDavid SmallLab 1(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2023-09-292026-09-29ActiveBenjamin MartinezLab 1Disregard Suspension. CSP@dot.ca.gov
CT 205 Percent Crushed Particles (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 227 Cleanness Value (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 229 Durability (JTCP - S&A)2023-09-292026-09-29ActiveGabriela LopezLab 1(No comments)
CT 301 "R" Value 2023-02-012025-02-01ExpiredDavid SmallLab 1(No comments)
CT 308 Bulk SpG and Density - HMA 2018-11-202020-11-20ExpiredDavid SmallLab 1(No comments)
CT 309 Max SpG and Density - HMA 2018-11-202020-11-20ExpiredDavid SmallLab 1(No comments)
CT 366 Stabilometer 2018-11-202020-11-20ExpiredDavid SmallLab 1(No comments)
CT 643 Resistivity and pH Measurements 2019-05-072021-05-07ExpiredDavid SmallLab 1(No comments)

AASHTO/ASTM Proficiencies