Lab details for Butte County
Basic Information
| Lab Name | Butte County |
|---|---|
| Manager Name | Todd Estes |
| Lab Email | testes@buttecounty.net |
| Lab Telephone | 530-538-7681 |
| Lab Fax | 530-538-7171 |
| Lab Full Address | 11 County Center Drive, Oroville, CA 95965 |
| Zip | 95965 |
| Lab Type | Local Agency |
| District | 3 |
| Mobile Lab Full Address | , , |
RSP Information
11 County Center Drive, Oroville, CA 95965
Test Methods
California Test (CT) Accreditations
Total 23 items.
AASHTO/ASTM Proficiencies
Total 9 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Technician Certified? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
| ASTM D4791: Flat and Elongated Particles | 2025-04-24 | 2026-04-24 | Active | Darrell Valasek | Yes |
Technicians in the Lab
Technician Summary
Technician Details
Details for Todd Estes
| First Name | Todd |
|---|---|
| Last Name | Estes |
| Status | Active |
Total 22 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 217: Sand Equivalent (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 227: Cleanness Value (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 229: Durability (JTCP) | 2024-04-26 | 2027-04-26 | Active | Gabriela Lopez | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-05-06 | 2027-05-06 | Active | Darrell Valasek | Yes |
| CT 235: Flat and Elongated Particles | 2022-04-29 | 2024-04-29 | Expired | Darrell Valasek | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
| CT 533: Ball Penetration - PCC | 2016-04-18 | 2018-04-18 | Expired | Ignocencio Herrera | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
| CT 556: Slump - PCC (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
| CT 557: Temperature - PCC (JTCP) | 2018-04-14 | 2023-04-14 | Expired | Jackie Treat | Yes |
Total 8 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
Details for Joshua Workman
| First Name | Joshua |
|---|---|
| Last Name | Workman |
| Status | Active |
Total 21 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 217: Sand Equivalent (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 227: Cleanness Value (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 229: Durability (JTCP) | 2023-02-03 | 2026-02-03 | Active | Gabriela Lopez | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-24 | 2027-04-24 | Active | Darrell Valasek | Yes |
| CT 235: Flat and Elongated Particles | 2025-05-06 | 2027-05-06 | Active | Darrell Valasek | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
| CT 539: Sampling Fresh Concrete (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
| CT 556: Slump - PCC (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
| CT 557: Temperature - PCC (JTCP) | 2020-01-25 | 2025-01-25 | Expired | Jackie Treat | Yes |
Total 9 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2024-03-01 | 2027-03-01 | Active | Gabriela Lopez | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2024-03-01 | 2027-03-01 | Active | Firooz Ahmad Hosainy | Yes |
| ASTM D4791: Flat and Elongated Particles | 2025-04-24 | 2027-04-24 | Active | Darrell Valasek | Yes |
Details for Michael Hovey
| First Name | Michael |
|---|---|
| Last Name | Hovey |
| Status | Active |
Total 22 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 217: Sand Equivalent (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 227: Cleanness Value (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 229: Durability (JTCP) | 2023-02-03 | 2026-02-03 | Active | Avinash Ralla | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2025-04-24 | 2027-04-24 | Active | Darrell Valasek | Yes |
| CT 235: Flat and Elongated Particles | 2025-04-24 | 2027-04-24 | Active | Darrell Valasek | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | No |
| CT 539: Sampling Fresh Concrete (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
| CT 556: Slump - PCC (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
| CT 557: Temperature - PCC (JTCP) | 2023-06-23 | 2028-06-23 | Active | Avinash Ralla | Yes |
Total 9 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2022-11-04 | 2025-11-04 | Active | Dalton LaBoskey | Yes |
| ASTM D4791: Flat and Elongated Particles | 2025-04-24 | 2027-04-24 | Active | Darrell Valasek | Yes |
For concerns with missing or erroneous data, please contact your Independent Assurance personnel