DIME - Test Summary

Summary for Test 2026-07-10-64-1

Test performed: CTM 203-February 2008

Project Identifiers	Project ID: 1001417 DEA: 022J7504 EFIS: 0221000131
DIST-CO-RTE-PM	02-MOD-299-33.5/37.5
Award Date	Not set
Closeout Date	Not set
Work Description	Crowder Flat Pavement Roadway Rehabilitation
Location Description	In Modoc County near Alturas from 3.6 miles west of Crowder Flat Road to 0.3 mile west of Rattlesnake Creek Bridge
QA Service Level	1 (Verified on 07/22/2025)

Sample Taken Date	07/10/2026	Sample Unique Key	64
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	07/14/2026
Sample type	Preliminary	A brief description of the sample	Subgrade
The quantity of what the sample constitutes	1 Bag Subgrade	From where was the sample collected	Source
First name of sampler or witnessed by	Scott	Last name of sampler or witnessed by	Lewis
Title of sampler	Senior Engineering Geologist	Telephone number of sampler
Laboratory sample identification	D80283	Linked DIME Sample ID
The fabricator/manufacturer/facility name	Not Provided	Transportation Laboratory (TL) Number	859003
Inspector Lot Number from the Transportation Laboratory (TL) Form		Structure unique identifier
Structure name		Bid Item	Not set

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	Pit just south of RDWY prism
Where the material sample would have been placed if not sampled

DIME Sample ID: 2026-07-10-64

DIME Test ID: 2026-07-10-64-1

Testing Lab: CT D02 - Redding Northern Regional Laboratory

Test Method: CTM 203-February 2008: Mechanical Analysis of Soils

Test Release Date: 2026-08-11

What size aggregate is being tested?: Combined Gradation

Individual or cumulative mass retained on each sieve?: Cumulative Mass Retained

Input Type: Calculated

Tester's full name: Josh Murphy

Date of test: 07/27/2026

Cumulative percent passing the 3 in. sieve: 100 %

Cumulative percent passing the 2 1/2 in. sieve: 100 %

Cumulative percent passing the 2 in. sieve: 100 %

Cumulative percent passing the 1 1/2 in. sieve: 100 %

Cumulative percent passing the 1 in. sieve: 100 %

Cumulative percent passing the 3/4 in. sieve: 100 %

Cumulative percent passing the 1/2 in. sieve: 100 %

Cumulative percent passing the 3/8 in. sieve: 100 %

Cumulative percent passing the #4 sieve: 100 %

Cumulative percent passing the #8 sieve: 99 %

Cumulative percent passing the #16 sieve: 97 %

Cumulative percent passing the #30 sieve: 94 %

Cumulative percent passing the #50 sieve: 90 %

Cumulative percent passing the #100 sieve: 80 %

Cumulative percent passing the #200 sieve: 67 %

Cumulative Percent Passing on 5 Microns: 32 %

Cumulative Percent Passing on 1 Micron: 19 %

General comments (publicly viewable) (Max 1000 characters): D₈₅=202-μm, D₅₀=37-μm, D₁₅ <1-μm

Test was verified on 8/11/2026 ✔