Lab details for Butte County
Basic Information
| Lab Name | Butte County |
|---|---|
| Manager Name | Michael Hovey |
| Lab Email | mhovey@buttecounty.ca.gov |
| Lab Telephone | 530-552-5699 |
| 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
7 County Center Drive, Oroville, CA 95965
Test Methods
California Test (CT) Accreditations
Total 23 items.
AASHTO/ASTM Proficiencies
Total 9 items.
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 Thao Xiong
| First Name | Thao |
|---|---|
| Last Name | Xiong |
| Status | Active |
Total 28 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| CT 125 ADMIX: Sampling - ADMIXTURE | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| CT 125 AGG: Sampling - AGGREGATES | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | Yes |
| CT 125 BIT: Sampling - BITUMINOUS | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 125 CEM: Sampling - CEM | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 125 GEN: Sampling - GENERAL | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| CT 125 HMA: Sampling - HMA | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2016-07-18 | 2019-07-18 | Expired | Richard Hibbard | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | Yes |
| CT 206: SpG & Absorption - Coarse Aggregates | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 207: SpG & Absorption - Fine Aggregates | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 211: LA Rattler | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 212: Unit Weight of Aggregates | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | No |
| CT 217: Sand Equivalent (JTCP) | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | Yes |
| CT 229: Durability (JTCP) | 2017-07-05 | 2018-07-05 | Expired | Jackie Treat | Yes |
| CT 231: Relative Compaction - Nuclear Gage | 2026-04-22 | 2027-04-22 | Active | Darrell Valasek | Yes |
| CT 234: Uncompacted void - Fine Aggregates | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 235: Flat and Elongated Particles | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| CT 308: Bulk SpG and Density - HMA | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | No |
| CT 309: Max SpG and Density - HMA | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | No |
| CT 371: Moisture Induced Damage (TSR) | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| CT 375: AC Density by Nuclear Gage | 2024-06-17 | 2026-06-17 | Active | Darrell Valasek | No |
| CT 382: AC Content by Ignition Oven | 2016-07-18 | 2018-07-18 | Expired | Jackie Treat | No |
| CT 389: Hamburg Wheel-Track | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
Total 25 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO T84: SpG & Absorption - Fine Aggregates | 2024-06-17 | 2026-06-17 | Active | Darrell Valasek | No |
| AASHTO T85: SpG & Absorption - Coarse Aggregates | 2024-06-17 | 2026-06-17 | Inactive | Darrell Valasek | No |
| AASHTO T96: L.A. Rattler | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP) | 2024-02-15 | 2027-02-15 | Active | Gabriela Lopez | No |
| AASHTO T176: Sand Equivalent (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO T209: Max SpG and Density - HMA (JTCP) | 2024-02-15 | 2027-02-15 | Active | Gabriela Lopez | No |
| AASHTO T210: Aggregate Durability Index | 2024-06-17 | 2026-06-17 | Active | Darrell Valasek | No |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO T269: Percent Air Voids - HMA (JTCP) | 2024-02-15 | 2027-02-15 | Active | Gabriela Lopez | No |
| AASHTO T275: Bulk SpG - HMA (JTCP) | 2024-02-15 | 2027-02-15 | Active | Gabriela Lopez | No |
| AASHTO T283: Moisture Induced Damage (TSR) | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| AASHTO T304: Uncompacted Void - Fine Aggregate | 2024-07-03 | 2026-07-03 | Active | Darrell Valasek | No |
| AASHTO T308: AC Content (Ignition Oven) - HMA (JTCP) | 2024-02-15 | 2027-02-15 | Active | Gabriela Lopez | No |
| AASHTO T312: Gyratory Compactor | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| AASHTO T324: Hamburg Wheel-Track | 2021-06-21 | 2023-06-21 | Expired | Jackie Treat | No |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2023-02-17 | 2026-02-17 | Expired | David Medina | Yes |
| ASTM D4791: Flat and Elongated Particles | 2026-04-22 | 2027-04-22 | Active | Darrell Valasek | Yes |
| ASTM D8225-19 (BMD ILS): IDEAL-CT | 2026-02-03 | 2027-02-03 | Active | Sarbjit Grewal | No |
| ASTM D8360-22 (BMD ILS): IDEAL-RT | 2026-02-03 | 2027-02-03 | Active | Sarbjit Grewal | No |
| ASTM WK86870 (BMD ILS): IDT-HT | 2026-02-03 | 2027-02-03 | Active | Sarbjit Grewal | No |
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) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 217: Sand Equivalent (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 227: Cleanness Value (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | Yes |
| CT 229: Durability (JTCP) | 2026-03-06 | 2029-03-06 | Active | Firooz Ahmad Hosainy | 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) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | 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 10 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO T30: Mechanical Analysis of Extracted Aggregate (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | No |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO T176: Sand Equivalent (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | Yes |
| AASHTO T335: Percentage of Fracture (JTCP) | 2025-11-21 | 2028-11-21 | Active | Wei Geng | 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