Conditional Use Permit No. 25-05 (Thomas Bros. Gypsum Sales)
2 Documents in Project
Summary
SCH Number
2026010461
Lead Agency
Kings County
Document Title
Conditional Use Permit No. 25-05 (Thomas Bros. Gypsum Sales)
Document Type
NOD - Notice of Determination
Received
Posted
3/3/2026
Document Description
The applicant is proposing to establish gypsum storage and sales as a soil amendment at an existing composting facility located at 20111 Excelsior Ave., Riverdale, Assessor’s Parcel Number 004-062-003, County of Kings. The facility proposes to store up to 30,000 tons of gypsum during peak season (9 months) and up to 10,000 tons during off peak season (3 months). During the peak season, approximately 20 trucks per day are anticipated, which could increase to 30 trucks per day in the future. The facility will operate six (6) days a week during the peak season with approximately 4,676 truck trips, which could increase to 7,015 trips in the future. Gypsum will be stored in a designated area on site to prevent dust generation, contamination, and runoff. This storage area will be managed in compliance with air quality and stormwater control regulations to minimize environmental impacts. The enriched compost will be sold to local farmers, providing them with a high-quality, affordable soil amendment that supports healthier crop yields and sustainable farming practices. The facility’s operations ensure that gypsum sales will not interfere with existing composting activities or create significant additional impacts on traffic, noise, or air quality.
Contact Information
Name
Noelle Tomlinson
Agency Name
Kings County Community Development Agency
Job Title
Planner III
Contact Types
Lead/Public Agency
Phone
Name
Monique Baldiviez
Agency Name
Sentry Ag Services, LLC
Job Title
Permitting/Office Manager
Contact Types
Project Applicant
Address
Phone
Location
Coordinates
Cities
Riverdale
Counties
Kings
Regions
Southern California, Unincorporated
Cross Streets
Excelsior Ave. & 20th Ave.
Zip
93656
Total Acres
63.22
Parcel #
004-062-003
State Highways
Hwy 41
Waterways
E Canal
Township
18S
Range
20E
Section
05
Base
MDBM
Notice of Determination
Approving Agency
Kings County Planning Commission
Approving Agency Role
Lead Agency
Approved On
County Clerk
Kings
Final Environmental Document Available at
Kings County Community Development Agency, 1400 W. Lacey Boulevard, Hanford, CA 93230
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
No
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(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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