Technician Information for Steven Derpich

First NameSteven
Last NameDerpich
Technician ID01811

Associated Labs

Total 4 items.
Lab NameManager NameFull AddressDistrictPage Alias
Garco Testing Laboratories - San JoseCorina Wong2326 Kruse Drive, San Jose, CA 951314Lab 1
Garco Testing Laboratories - SalinasCorina Wong721 Work Street, Salinas, CA 939015Lab 2
Garco Testing Laboratories - FeltonHongbin Xie1800 Felton Quarry Road, Felton, CA 950185Lab 3
GarcoTesting Laboratories - PleasantonCorina Wong1544 Stanley Boulevard, Pleasanton, CA 945664Lab 4

Test Methods

California Test (CT) Certifications

Total 28 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2025-09-12ActiveDavid SmallLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4Reinstated 09/12/2023. Successfully participated in 2022 CSP CT 202.
CT 205 Percent Crushed Particles (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2(No comments)
CT 206 SpG & Absorption - Coarse Aggregates 2024-11-15ExpiredEd GamboaLab 1, Lab 2(No comments)
CT 207 SpG & Absorption - Fine Aggregates 2024-09-16ExpiredDavid SmallLab 1, Lab 2(No comments)
CT 208 Apparent SpG - Fine Aggregates 2023-12-30ExpiredDavid SmallLab 1(No comments)
CT 211 LA Rattler 2024-11-15ExpiredEd GamboaLab 1, Lab 2(No comments)
CT 212 Unit Weight of Aggregates 2024-11-15ExpiredEd GamboaLab 1, Lab 2(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3(No comments)
CT 227 Cleanness Value (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 229 Durability (JTCP - S&A)2027-04-26ActiveBrian EllisLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 231 Relative Compaction - Nuclear Gage 2024-09-16ExpiredDavid SmallLab 1, Lab 2(No comments)
CT 301 "R" Value 2025-10-04ActiveDavid SmallLab 1(No comments)
CT 304 Sample Preparation - HMA 2025-10-04ActiveDavid SmallLab 1(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 4(No comments)
CT 308 Bulk SpG and Density - HMA 2025-10-04ActiveDavid SmallLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 309 Max SpG and Density - HMA 2025-10-04ActiveDavid SmallLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 366 Stabilometer 2025-10-04ActiveDavid SmallLab 1(No comments)
CT 370 Moisture Content by Microwave 2023-12-30ExpiredDavid SmallLab 1, Lab 2, Lab 3, Lab 4(No comments)
CT 371 Moisture Induced Damage (TSR) 2023-12-30ExpiredDavid SmallLab 1(No comments)
CT 375 AC Density by Nuclear Gage 2024-09-16ExpiredDavid SmallLab 1, Lab 2(No comments)
CT 382 AC Content by Ignition Oven 2025-10-04ActiveDavid SmallLab 1, Lab 2, Lab 3, Lab 4(No comments)

AASHTO/ASTM Proficiencies

Total 21 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T304 Uncompacted Void - Fine Aggregate 2023-12-30ExpiredDavid SmallLab 1, Lab 2, Lab 4The previous certification was imputed incorrectly
AASHTO T96 L.A. Rattler 2024-11-15ExpiredEd GamboaLab 1(No comments)
AASHTO T283 Moisture Induced Damage (TSR) 2024-11-15ExpiredEd GamboaLab 1(No comments)
AASHTO T312 Gyratory Compactor 2024-11-15ExpiredEd GamboaLab 1, Lab 2(No comments)
AASHTO T324 Hamburg Wheel-Track 2024-11-15ExpiredEd GamboaLab 1(No comments)
ASTM D4791 Flat and Elongated Particles 2025-09-12ActiveDavid SmallLab 1, Lab 2(No comments)
AASHTO T84 SpG & Absorption - Fine Aggregates 2025-10-04ActiveDavid SmallLab 1, Lab 2, Lab 4(No comments)
AASHTO T85 SpG & Absorption - Coarse Aggregates 2025-10-04ActiveDavid SmallLab 1, Lab 2, Lab 4(No comments)
AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO R47 Reducing Samples of HMA (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO R76 Reducing Samples of Agg (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T176 Sand Equivalent (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T255 Evaporable Moisture Content (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T335 Percentage of Fracture (JTCP - HMA I)2027-03-08ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 4(No comments)
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2027-04-18ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2027-04-18ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2027-04-18ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 4(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2027-04-18ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 4(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2027-04-18ActiveFirooz Ahmad HosainyLab 1, Lab 2, Lab 3, Lab 4(No comments)