Technician Information for Nathan Johnson

First NameNathan
Last NameJohnson
Technician ID07391

Associated Labs

Lab NameLab Lab Manager NameFull AddressLab Lab DistrictPage Alias
No results found.

Test Methods

California Test (CT) Certifications

Total 12 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)InactiveFirooz Ahmad Hosainy(No lab)(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 227 Cleanness Value (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 229 Durability (JTCP - S&A)2025-10-242028-10-24ActiveWei Geng(No lab)(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)

AASHTO/ASTM Proficiencies

Total 14 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T30 Mechanical Analysis of Extracted Aggregate (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO R47 Reducing Samples of HMA (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO R76 Reducing Samples of Agg (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T176 Sand Equivalent (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T255 Evaporable Moisture Content (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T335 Percentage of Fracture (JTCP - HMA I)2026-01-302029-01-30ActiveFirooz Ahmad Hosainy(No lab)(No comments)
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2026-03-052029-03-05ActiveGabriela Lopez(No lab)(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2026-03-052029-03-05ActiveGabriela Lopez(No lab)(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2026-03-052029-03-05ActiveGabriela Lopez(No lab)(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2026-03-052029-03-05ActiveGabriela Lopez(No lab)(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2026-03-052029-03-05ActiveGabriela Lopez(No lab)(No comments)

JTCP Sessions

Total 3 items.
JTCP Training CodeJTCP Training Start DateJTCP Training End Date
HMA1_LB00982026-01-272026-01-30
HMA2_LB01462026-03-032026-03-05
SA_LB01322025-10-212025-10-24