Summary for Test 2026-01-22-83-6

Test performed: CTM 643-April 2020

Project Information

Project IdentifiersProject ID: 1001957
DEA: 021K7204
EFIS: 0224000158
DIST-CO-RTE-PM02-SHA-273-5.2/14.5
Award Date11/21/2028
Closeout DateNot set
Work DescriptionBrighter 273 Safety - Install lighting
Location DescriptionIn Shasta County from 0.1 mile North of Anderson Creek bridge in Anderson to 0.1 North of Buenaventura Boulevard in Redding 6/17/24 JC
QA Service Level1 (Verified on 02/17/2026)

Sample Information

Sample Taken Date01/22/2026 Sample Unique Key83
Date that the sample was received by the laboratory/organization performing the testing01/27/2026 Sample typePreliminary
A brief description of the sample2 Bags of Rock and Soil The quantity of what the sample constitutesStructural Section Recommendation
From where was the sample collectedSource First name of sampler or witnessed byDerek
Last name of sampler or witnessed bySerna Title of samplerMREA
Telephone number of sampler Laboratory sample identificationD80140
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 9.0
Where the material sample would have been placed if not sampled

Test Details

DIME Sample ID: 2026-01-22-83
DIME Test ID: 2026-01-22-83-6
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: 2026-03-10

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: 02/25/2026
Minimum soil resistance of the lab measurement: 4300 Ohms
Soil sample temperature: 23.6 C
Soil box constant: 1
pH of soil: 6.72
Minimum soil resistance corrected to 15.5: 5170.75 Ohm-cm
Minimum soil resistivity at 15.5: 5171 Ohm-cm
General comments (publicly viewable) (Max 1000 characters): pH=6.72, p=5171.Ω∙cm

Test was verified on 3/10/2026 ✔