Lab details for Sierra Geotechnical Services

Basic Information

Lab NameSierra Geotechnical Services
Manager NameDean Dougherty
Lab Emailddougherty@sgsi.us
Lab Telephone760-937-4789
Lab Fax
Lab Full Address169 Willow Street, Bishop, CA 93514
Zip93514
Lab TypePrivate
District9

RSP Information

169 Willow Street, Bishop, CA 93514

Test Methods

California Test (CT) Accreditations

Total 36 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleTester Certified?
CT 125 AGG: Sampling - AGGREGATES2020-09-222021-09-22ExpiredAshley ShawYes
CT 125 HMA: Sampling - HMA2020-09-222021-09-22ExpiredAshley ShawYes
CT 105: Calculations - Gradings (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 106: Definitions - Specific Gravity (SpG)2021-09-222022-09-22ActiveAshley ShawNo
CT 125 AGG: Sampling - AGGREGATES (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 125 CEM: Sampling - CEM2021-09-222022-09-22ActiveAshley ShawNo
CT 125 GEN: Sampling - GENERAL2021-09-222022-09-22ActiveAshley ShawYes
CT 125 HMA: Sampling - HMA (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 201: Sample Preparation - Soil and Aggregates (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 204: LL, PL, PI2021-09-222022-09-22ActiveAshley ShawNo
CT 205: Percent Crushed Particles (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 206: SpG & Absorption - Coarse Aggregates2021-09-222022-09-22ActiveAshley ShawNo
CT 207: SpG & Absorption - Fine Aggregates2021-09-222022-09-22ActiveAshley ShawNo
CT 209: SpG for Soil2021-09-222022-09-22ActiveAshley ShawNo
CT 212: Unit Weight of Aggregates2021-09-222022-09-22ActiveAshley ShawNo
CT 213: Organic Impurities of PCC sand2021-09-222022-09-22ActiveAshley ShawNo
CT 216: Relative Compaction - Soils and Aggregates (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 217: Sand Equivalent (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 226: Moisture Content - Soils and Aggregates (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 227: Cleanness Value (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 229: Durability (JTCP)2021-09-222022-09-22ActiveAshley ShawYes
CT 231: Relative Compaction - Nuclear Gage2021-09-222022-09-22ActiveAshley ShawYes
CT 308: Bulk SpG and Density - HMA2021-09-222022-09-22ActiveAshley ShawNo
CT 309: Max SpG and Density - HMA2021-09-222022-09-22ActiveAshley ShawNo
CT 370: Moisture Content by Microwave2021-09-222022-09-22ActiveAshley ShawNo
CT 375: AC Density by Nuclear Gage2021-09-222022-09-22ActiveAshley ShawYes
CT 382: AC Content by Ignition Oven2021-09-222022-09-22ActiveAshley ShawNo
CT 504: Air Content of PCC - Pressure Method (JTCP)2021-09-222022-09-22ActiveAshley ShawNo
CT 518: Unit Weight - PCC (JTCP)2021-09-222022-09-22ActiveAshley ShawNo
CT 521: Compressive Strength - PCC2021-09-222022-09-22ActiveAshley ShawNo
CT 539: Sampling Fresh Concrete (JTCP)2021-09-222022-09-22ActiveAshley ShawNo
CT 540: Making Cylinders - PCC (JTCP)2021-09-222022-09-22ActiveAshley ShawNo
CT 543: Air Content of PCC - Volumetric Method (JTCP)2021-09-222022-09-22ActiveAshley ShawNo
CT 556: Slump - PCC (JTCP)2021-09-222022-09-22ActiveAshley ShawNo
CT 557: Temperature - PCC (JTCP)2021-09-222022-09-22ActiveAshley ShawNo

AASHTO/ASTM Proficiencies

Testers in the Lab

Tester Summary

Total 2 items.
First NameLast NameActions
MikeMcGrale View
GarrettClair View

Tester Details

Details for Mike McGrale

First NameMike
Last NameMcGrale
StatusActive
Total 19 items.
Certified California Tests(CT)
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab Scope?
CT 105: Calculations - Gradings (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
CT 125 AGG: Sampling - AGGREGATES (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
CT 125 AGG: Sampling - AGGREGATES2024-08-012025-08-01ActiveAshley ShawYes
CT 125 GEN: Sampling - GENERAL2024-08-012025-08-01ActiveAshley ShawYes
CT 125 HMA: Sampling - HMA (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
CT 125 HMA: Sampling - HMA2024-08-012025-08-01ActiveAshley ShawYes
CT 201: Sample Preparation - Soil and Aggregates (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 205: Percent Crushed Particles (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 216: Relative Compaction - Soils and Aggregates (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 217: Sand Equivalent (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 226: Moisture Content - Soils and Aggregates (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 227: Cleanness Value (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 229: Durability (JTCP)2018-07-132021-07-13ExpiredRichard HibbardYes
CT 231: Relative Compaction - Nuclear Gage2022-08-012023-08-01ActiveAshley ShawYes
CT 308: Bulk SpG and Density - HMA2021-04-062022-04-06ExpiredAshley ShawYes
CT 309: Max SpG and Density - HMA2021-04-062022-04-06ExpiredAshley ShawYes
CT 375: AC Density by Nuclear Gage2022-08-012023-08-01ActiveAshley ShawYes
CT 382: AC Content by Ignition Oven2021-04-062022-04-06ExpiredAshley ShawYes
Total 8 items.
AASHTO/ASTM Proficiencies
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab Scope?
AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO R47: Reducing Samples of HMA (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO R76: Reducing Samples of Agg (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO T176: Sand Equivalent (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO T255: Evaporable Moisture Content (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes
AASHTO T335: Percentage of Fracture (JTCP)2019-05-312022-05-31ExpiredShaya MeisamifardYes

Details for Garrett Clair

First NameGarrett
Last NameClair
StatusActive
Total 12 items.
Certified California Tests(CT)
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab Scope?
CT 105: Calculations - Gradings (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 125 AGG: Sampling - AGGREGATES (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 125 HMA: Sampling - HMA (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
CT 201: Sample Preparation - Soil and Aggregates (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 205: Percent Crushed Particles (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 216: Relative Compaction - Soils and Aggregates (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 217: Sand Equivalent (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 226: Moisture Content - Soils and Aggregates (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 227: Cleanness Value (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 229: Durability (JTCP)2021-02-052024-02-05ActiveSarbjit GrewalYes
CT 306: Reducing Samples of Asphalt Mixtures (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalNo
Total 13 items.
AASHTO/ASTM Proficiencies
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab Scope?
AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO R47: Reducing Samples of HMA (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO R76: Reducing Samples of Agg (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP)2022-03-032025-03-03ActiveAvinash RallaYes
AASHTO T176: Sand Equivalent (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO T209: Max SpG and Density - HMA (JTCP)2022-03-032025-03-03ActiveAvinash RallaYes
AASHTO T255: Evaporable Moisture Content (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO T269: Percent Air Voids - HMA (JTCP)2022-03-032025-03-03ActiveAvinash RallaYes
AASHTO T275: Bulk SpG - HMA (JTCP)2022-03-032025-03-03ActiveAvinash RallaYes
AASHTO T308: AC Content (Ignition Oven) - HMA (JTCP)2022-03-032025-03-03ActiveAvinash RallaYes
AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes
AASHTO T335: Percentage of Fracture (JTCP)2021-02-262024-02-26ActiveSarbjit GrewalYes