Summary for Test 2025-10-02-49-4
Test performed: CTM 643-April 2020Project Information
| Project Identifiers | Project ID: 1001796 DEA: 021K5404 EFIS: 0224000119 |
|---|---|
| DIST-CO-RTE-PM | 02-SHA-44-R26.94/R27.62 |
| Award Date | 05/02/2028 |
| Closeout Date | Not set |
| Work Description | West Shingletown Shoulder Widening and Rumble Strips |
| Location Description | In Shasta County at Shingletown from 1.0 Mile West to 0.2 Mile west of Wilson Hil Road |
| QA Service Level | 1 (Verified on 10/28/2025) |
Sample Information
| Sample Taken Date | 10/02/2025 | Sample Unique Key | 49 |
|---|---|---|---|
| Will the laboratory/organization for which you are a member perform testing on this material sample? | Yes | Date that the sample was received by the laboratory/organization performing the testing | 10/02/2025 |
| Sample type | Preliminary | A brief description of the sample | 2 Bags Sand Silt Rock and Soil |
| The quantity of what the sample constitutes | Structural Section Recommendation | From where was the sample collected | Source |
| First name of sampler or witnessed by | Derek | Last name of sampler or witnessed by | Serna |
| Title of sampler | MREA | Telephone number of sampler | |
| Laboratory sample identification | D80072 | Linked DIME Sample ID | |
| The fabricator/manufacturer/facility name | District 2 Lab | Transportation Laboratory (TL) Number | 897620 |
| Inspector Lot Number from the Transportation Laboratory (TL) Form | Structure unique identifier | ||
| Structure name | Bid Item | Not set |
Material Information
| Material Type | Soil | The fabricator's/manufacturer's product name for the sample | |
|---|---|---|---|
| The fabricator/manufacturer designation for the sample | A detailed description of where the material sample was collected | Shoulder at SHA 44, PM 27.5 | |
| Where the material sample would have been placed if not sampled |
Test Details
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DIME Sample ID: 2025-10-02-49
DIME Test ID: 2025-10-02-49-4
Testing Lab: CT D02 - Redding Northern Regional Laboratory
Test Method: CTM 643-April 2020: Method for Test for Laboratory Resistivity and pH for Soil and Water
Test Release Date: 2025-10-29
Test Results
The test method used?: Laboratory Resistivity Test for Soil (pH and Resistivity)
Input Type: Measured
Tester's full name: Josh Murphy
Date of test: 10/15/2025
Minimum soil resistance of the lab measurement: 5250 Ohms
Soil sample temperature: 22.2 C
Soil box constant: 1
pH of soil: 6.30
Minimum soil resistance corrected to 15.5: 6129.38 Ohm-cm
Minimum soil resistivity at 15.5: 6129 Ohm-cm
General comments (publicly viewable) (Max 1000 characters): pH=6.30, p=6129.Ω∙cm
Test was verified on 10/29/2025 ✔