Technician Information for Robert Gray

First NameRobert
Last NameGray
Technician ID05658

Associated Labs

Total 1 item.
Lab NameManager NameFull AddressDistrictPage Alias
Granite Construction Arvin Laboratory/ Solari PlantCorina Wong8999 Capacity Street, Arvin, CA 932036Lab 1

Test Methods

California Test (CT) Certifications

Total 14 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 389 Hamburg Wheel-Track 2024-11-29ExpiredAllen OliverLab 1(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2025-04-22ActiveDavid Medina(No lab)(No comments)
CT 229 Durability (JTCP - S&A)2026-03-10ActiveDavid MedinaLab 1(No comments)
CT 227 Cleanness Value (JTCP - S&A)2026-03-10ActiveDavid MedinaLab 1(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2026-03-10ActiveAvinash RallaLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2026-03-10ActiveDavid MedinaLab 1(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2026-03-10ActiveDavid MedinaLab 1(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2026-03-10ActiveAvinash RallaLab 1(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2026-03-10InactiveBrooke VanassaLab 1Did not participate in 2024 CSP CT 202. Please contact CSP@dot.ca.gov for reinstatement instructions.
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2026-03-10ActiveDavid MedinaLab 1(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2025-04-22ActiveDavid MedinaLab 1(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2026-03-10ActiveAvinash RallaLab 1(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2024-11-29ExpiredAllen OliverLab 1(No comments)
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2026-03-10ActiveAvinash RallaLab 1(No comments)

AASHTO/ASTM Proficiencies