SIAD: Certificates for Nathan Trease
UNOFFICIAL COPY
Certificates for Nathan Trease
Basic Information
| First Name | Nathan |
|---|---|
| Last Name | Trease |
| Status | Active |
Associated Labs
Total 1 item.
| Lab Name | Manager Name | Full Address | District | Page Alias |
|---|---|---|---|---|
| Pavement Engineering, Incorporated | Craig Long | 20260 Skypark Drive, Redding, CA 96002 | 2 | Lab 1 |
Test Methods
California Test (CT) Certifications
Total 50 items.
| Test Method | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|
| CT 105 Calculations - Gradings (JTCP - HMA I / S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 106 Definitions - Specific Gravity (SpG) | 2025-02-23 | Active | Darrell Valasek | Lab 1 | Witnessed by IA 133, Entered by IA 151 |
| CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 125 BIT Sampling - BITUMINOUS | 2024-02-22 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 125 CEM Sampling - CEM | 2024-02-22 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 125 GEN Sampling - GENERAL | 2024-02-22 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 125 HMA Sampling - HMA (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 204 LL, PL, PI | 2025-02-27 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 205 Percent Crushed Particles (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 206 SpG & Absorption - Coarse Aggregates | 2025-02-27 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 207 SpG & Absorption - Fine Aggregates | 2025-02-27 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 209 SpG for Soil | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 211 LA Rattler | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 212 Unit Weight of Aggregates | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 213 Organic Impurities of PCC sand | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 214 Sodium Sulfate Soundness | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 217 Sand Equivalent (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 227 Cleanness Value (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 229 Durability (JTCP - S&A) | 2025-02-04 | Active | Soroosh Amelian | Lab 1 | (No comments) |
| CT 234 Uncompacted void - Fine Aggregates | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 235 Flat and Elongated Particles | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 301 "R" Value | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 304 Sample Preparation - HMA | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| CT 308 Bulk SpG and Density - HMA | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 309 Max SpG and Density - HMA | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 366 Stabilometer | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 367 OBC | 2024-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 368 OBC of OGAC | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 370 Moisture Content by Microwave | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 371 Moisture Induced Damage (TSR) | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 379 AC Content by Nuclear Gage | 2021-03-20 | Expired | Natalie Rivinius | Lab 1 | (No comments) |
| CT 382 AC Content by Ignition Oven | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 389 Hamburg Wheel-Track | 2024-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 504 Air Content of PCC - Pressure Method (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 518 Unit Weight - PCC (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 521 Compressive Strength - PCC | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 523.1 Section B.1 & B.2 Flexural Strength (Field Fabrication) (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 523.2 Section B.3 Flexural Strength (Lab Test) | 2024-03-01 | Active | Darrell Valasek | (No lab) | (No comments) |
| CT 524 Flexural Strength of Rapid Strength - PCC | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 533 Ball Penetration - PCC | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| CT 539 Sampling Fresh Concrete (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 540 Making Cylinders - PCC (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 556 Slump - PCC (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
| CT 557 Temperature - PCC (JTCP - PCC) | 2026-06-18 | Active | Sarbjit Grewal | Lab 1 | (No comments) |
AASHTO/ASTM Proficiencies
Total 21 items.
| Test Method | Expiration Date | Status | IA Responsible | Within Lab(s) Scope | Comments |
|---|---|---|---|---|---|
| AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO R47 Reducing Samples of HMA (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO R76 Reducing Samples of Agg (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO T84 SpG & Absorption - Fine Aggregates | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T85 SpG & Absorption - Coarse Aggregates | 2025-02-27 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II) | 2025-04-07 | Active | Dalton LaBoskey | Lab 1 | (No comments) |
| AASHTO T176 Sand Equivalent (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II) | 2025-04-07 | Active | Dalton LaBoskey | Lab 1 | (No comments) |
| AASHTO T210 Aggregate Durability Index | 2024-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T255 Evaporable Moisture Content (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II) | 2025-04-07 | Active | Dalton LaBoskey | Lab 1 | (No comments) |
| AASHTO T275 Bulk SpG - HMA (JTCP - HMA II) | 2025-04-07 | Active | Dalton LaBoskey | Lab 1 | (No comments) |
| AASHTO T283 Moisture Induced Damage (TSR) | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T304 Uncompacted Void - Fine Aggregate | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II) | 2025-04-07 | Active | Dalton LaBoskey | Lab 1 | (No comments) |
| AASHTO T312 Gyratory Compactor | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T324 Hamburg Wheel-Track | 2025-02-23 | Active | Darrell Valasek | Lab 1 | (No comments) |
| AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| AASHTO T335 Percentage of Fracture (JTCP - HMA I) | 2025-03-18 | Active | Avinash Ralla | Lab 1 | (No comments) |
| ASTM D4791 Flat and Elongated Particles | 2025-03-01 | Active | Darrell Valasek | Lab 1 | (No comments) |
For concerns with missing or erroneous data, please contact your Independent Assurance personnel