Technician Information for Nathan Trease

First NameNathan
Last NameTrease
Technician ID01060

Associated Labs

Total 1 item.
Lab NameManager NameFull AddressDistrictPage Alias
Pavement Engineering, IncorporatedCraig Long7610 Avianca Drive, Redding, CA 960022Lab 1

Test Methods

California Test (CT) Certifications

Total 51 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2025-02-23ActiveDarrell ValasekLab 1Witnessed by IA 133, Entered by IA 151
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 125 BIT Sampling - BITUMINOUS 2027-02-21ActiveDarrell ValasekLab 1(No comments)
CT 125 CEM Sampling - CEM 2027-02-21ActiveDarrell ValasekLab 1(No comments)
CT 125 GEN Sampling - GENERAL 2027-02-21ActiveDarrell ValasekLab 1(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 204 LL, PL, PI 2025-02-27ActiveDarrell ValasekLab 1(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 206 SpG & Absorption - Coarse Aggregates 2025-02-27ActiveDarrell ValasekLab 1(No comments)
CT 207 SpG & Absorption - Fine Aggregates 2025-02-27ActiveDarrell ValasekLab 1(No comments)
CT 209 SpG for Soil 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 211 LA Rattler 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 212 Unit Weight of Aggregates 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 213 Organic Impurities of PCC sand 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 214 Sodium Sulfate Soundness 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 227 Cleanness Value (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 229 Durability (JTCP - S&A)2025-02-04ActiveSoroosh AmelianLab 1(No comments)
CT 234 Uncompacted void - Fine Aggregates 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 235 Flat and Elongated Particles 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 301 "R" Value 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 304 Sample Preparation - HMA 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
CT 308 Bulk SpG and Density - HMA 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 309 Max SpG and Density - HMA 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 366 Stabilometer 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 367 OBC 2025-02-21ActiveDarrell ValasekLab 1(No comments)
CT 368 OBC of OGAC 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 370 Moisture Content by Microwave 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 371 Moisture Induced Damage (TSR) 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 379 AC Content by Nuclear Gage 2021-03-20ExpiredNatalie RiviniusLab 1(No comments)
CT 382 AC Content by Ignition Oven 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 389 Hamburg Wheel-Track 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 504 Air Content of PCC - Pressure Method (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 518 Unit Weight - PCC (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 521.1 Compressive Strength - PCC (ASTM C39 / C617) 2025-03-01ActiveLoren LeeLab 1 Created based on CT521 certificate ID72504
CT 521.2 Compressive Strength - PCC (ASTM C39 / C1231) 2025-03-01ActiveLoren LeeLab 1
Created based on CT521 certificate ID72504
CT 523.1 Section B.1 & B.2 Flexural Strength (Field Fabrication) (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 523.2 Section B.3 Flexural Strength (Lab Test) 2025-03-01ActiveDarrell Valasek(No lab)(No comments)
CT 524 Flexural Strength of Rapid Strength - PCC 2025-03-01ActiveDarrell ValasekLab 1(No comments)
CT 533 Ball Penetration - PCC 2025-02-23ActiveDarrell ValasekLab 1(No comments)
CT 539 Sampling Fresh Concrete (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 540 Making Cylinders - PCC (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 556 Slump - PCC (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)
CT 557 Temperature - PCC (JTCP - PCC)2026-06-18ActiveSarbjit GrewalLab 1(No comments)

AASHTO/ASTM Proficiencies

Total 22 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T210 Aggregate Durability Index 2025-02-21ActiveDarrell ValasekLab 1(No comments)
AASHTO T304 Uncompacted Void - Fine Aggregate 2025-02-23ActiveDarrell ValasekLab 1(No comments)
AASHTO T312 Gyratory Compactor 2025-02-23ActiveDarrell ValasekLab 1(No comments)
AASHTO T324 Hamburg Wheel-Track 2025-02-23ActiveDarrell ValasekLab 1(No comments)
AASHTO T85 SpG & Absorption - Coarse Aggregates 2025-02-27ActiveDarrell ValasekLab 1(No comments)
AASHTO T84 SpG & Absorption - Fine Aggregates 2025-03-01ActiveDarrell ValasekLab 1(No comments)
AASHTO T283 Moisture Induced Damage (TSR) 2025-03-01ActiveDarrell ValasekLab 1(No comments)
ASTM D4791 Flat and Elongated Particles 2025-03-01ActiveDarrell ValasekLab 1(No comments)
AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO R47 Reducing Samples of HMA (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO R76 Reducing Samples of Agg (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO T176 Sand Equivalent (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO T255 Evaporable Moisture Content (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO T335 Percentage of Fracture (JTCP - HMA I)2025-03-18ActiveAvinash RallaLab 1(No comments)
AASHTO T96 L.A. Rattler 2025-03-20ActiveDarrell ValasekLab 1(No comments)
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2025-04-07ActiveDalton LaBoskeyLab 1(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2025-04-07ActiveDalton LaBoskeyLab 1(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2025-04-07ActiveDalton LaBoskeyLab 1(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2025-04-07ActiveDalton LaBoskeyLab 1(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2025-04-07ActiveDalton LaBoskeyLab 1(No comments)