Summary for Test 2026-03-26-53-6

Test performed: CTM 643-April 2020

Project Information

Project IdentifiersProject ID: 1002109
DEA: 022J7404
EFIS: 0221000130
DIST-CO-RTE-PM02-LAS-36-16.7/22.4
Award DateNot set
Closeout DateNot set
Work DescriptionSusan River Pavement - Roadway Rehabilitation (3R)
Location DescriptionIn Lassen County about 8 miles west of Susanville from 0.7 mile west of Susan River Bridge to 0.4 mile east of Eagle Lake Road.
QA Service Level1 (Verified on 04/16/2026)

Sample Information

Sample Taken Date03/26/2026 Sample Unique Key53
Date that the sample was received by the laboratory/organization performing the testing03/27/2026 Sample typePreliminary
A brief description of the sample2 Bags Sand Silt Rock and Soil The quantity of what the sample constitutesStructural Section Recommendation
From where was the sample collectedSource First name of sampler or witnessed byColt
Last name of sampler or witnessed bySweeny Title of samplerMREA
Telephone number of sampler Laboratory sample identificationD80166
Linked DIME Sample ID The fabricator/manufacturer/facility nameDistrict 2 Lab
Transportation Laboratory (TL) Number Inspector Lot Number from the Transportation Laboratory (TL) Form
Structure unique identifier Structure name
Bid ItemNot set

Material Information

Material TypeSoil 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 collectedShoulder Slope near PM 18.0
Where the material sample would have been placed if not sampled

Test Details

DIME Sample ID: 2026-03-26-53
DIME Test ID: 2026-03-26-53-6
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: 2026-04-23

Test Results


The test method used?: Laboratory Resistivity Test for Soil (pH and Resistivity)
Input Type: Measured
Tester's full name: Josh Ferency
Date of test: 04/03/2026
Minimum soil resistance of the lab measurement: 2700 Ohms
Soil sample temperature: 21.7 C
Soil box constant: 1
pH of soil: 7.25
Minimum soil resistance corrected to 15.5: 3118.5 Ohm-cm
Minimum soil resistivity at 15.5: 3119 Ohm-cm
General comments (publicly viewable) (Max 1000 characters): pH=7.25, p=3119.Ω∙cm

Test was verified on 4/23/2026 ✔