Conditional Use Permit 2024-004, Carriere/Syntech CF1, LLC Advanced Thermal Conversion
3 Documents in Project
Summary
SCH Number
2024120076
Lead Agency
Glenn County
Document Title
Conditional Use Permit 2024-004, Carriere/Syntech CF1, LLC Advanced Thermal Conversion
Document Type
NOD - Notice of Determination
Received
Posted
7/18/2025
Document Description
Conditional Use Permit 2024-004, Carriere/Syntech CF1, LLC Advanced Thermal Conversion (ATC) project will operate on a 24/7 basis to remediate up to 135,000 tons a year of waste walnut shells (WWS) from an existing onsite walnut shelling facility into approximately 1,041,000 MMBtu/year of Renewable Natural Gas (RNG), which will then be compressed into a mobile storage trailer and then transported an existing walnut huller/dryer facility to be injected into a PG&E pipeline. The RNG project, referred to as SynTech CF1 will consist of the following four main operational components:
1. Organic Feedstock to Syngas Conversion
2. Biochar Transfer and Storage Facility
3. Collection of Syngas and Upgrade to Pipeline Quality RNG
4. Pipeline RNG Storage and Transfer Facility
Walnut shells will be moved to the ATC site via an enclosed conveyor system to a secondary waste walnut shell storage building used specifically for the ATC process. The project will draw power from the local utility grid during normal operation. In the case of grid power interruption, a natural gas and/or syngas fueled emergency generator will power essential safety and operational systems until grid power is restored. The biochar byproduct of the ATC process will be approximately 4% by volume of the WWS volume converted or remediated in the process and will be collected in 500 lb. storage containers for storage and shipment.
Contact Information
Name
Andy Popper
Agency Name
Glenn County Planning & Community Development Services Agency
Job Title
Principal Planner
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
unincorporated
Counties
Glenn
Regions
Unincorporated
Cross Streets
State Highway 45 and County Road 54
Total Acres
4
Parcel #
016-030-011, 016-090-016
State Highways
45 and 162
Schools
River Valley Christian School
Waterways
Sacramento River
Township
19N
Range
1W
Section
69
Base
MDBM
Notice of Determination
Approving Agency
Glenn County Planning Commission
Approving Agency Role
Lead Agency
Approved On
County Clerk
Glenn
Final Environmental Document Available at
225 North Tehama Street
Willows, CA 95988
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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