Lab details for Sierra Geotech DBE - Redding

Basic Information

Lab NameSierra Geotech DBE - Redding
Manager NameRaymond Downes
Lab Emailray@sierrageotech.com
Lab Telephone916-425-0359
Lab Fax
Lab Full Address8025 Eastside Road, Redding, CA 96001
Zip96001
Lab TypePrivate
District2
Mobile Lab Full Address, ,
Download TL-0113

RSP Information

4470 Yankee Hill Rd., Rocklin, CA 95677

Test Methods

California Test (CT) Accreditations

Total 3 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleTechnician Certified?Comments
CT 226: Moisture Content - Soils and Aggregates (JTCP)2026-04-292027-04-29ActiveDarrell ValasekYes(not set)
CT 308: Bulk SpG and Density - HMA2026-04-292027-04-29ActiveDarrell ValasekNo(not set)
CT 309: Max SpG and Density - HMA2026-04-292027-04-29ActiveDarrell ValasekNo(not set)

AASHTO/ASTM Proficiencies

Total 4 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleTechnician Certified?Comments
AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP)2026-04-292027-04-29ActiveDarrell ValasekNo(not set)
AASHTO T209: Max SpG and Density - HMA (JTCP)2026-04-292027-04-29ActiveDarrell ValasekNo(not set)
AASHTO T255: Evaporable Moisture Content (JTCP)2026-04-292027-04-29ActiveDarrell ValasekNo(not set)
AASHTO T275: Bulk SpG - HMA (JTCP)2026-04-292027-04-29ActiveDarrell ValasekNo(not set)

Technicians in the Lab

Technician Summary

Total 1 item.
First NameLast NameActions
AngelGutierrez View

Technician Details

Details for Angel Gutierrez

First NameAngel
Last NameGutierrez
StatusActive
Total 9 items.
Certified California Tests(CT)
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab Scope?
CT 125 AGG: Sampling - AGGREGATES (JTCP)2025-06-202028-06-20InactiveWei GengNo
CT 201: Sample Preparation - Soil and Aggregates (JTCP)2025-06-202028-06-20ActiveWei GengNo
CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP)2025-06-202028-06-20ActiveWei GengNo
CT 205: Percent Crushed Particles (JTCP)2025-06-202028-06-20ActiveWei GengNo
CT 216: Relative Compaction - Soils and Aggregates (JTCP)2025-06-202028-06-20ActiveWei GengNo
CT 217: Sand Equivalent (JTCP)2025-06-202028-06-20ActiveWei GengNo
CT 226: Moisture Content - Soils and Aggregates (JTCP)2025-06-202028-06-20ActiveWei GengYes
CT 227: Cleanness Value (JTCP)2025-06-202028-06-20ActiveWei GengNo
CT 229: Durability (JTCP)2025-06-202028-06-20ActiveWei GengNo
AASHTO/ASTM Proficiencies
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab Scope?
No results found.