Ione Quarry Expansion Project
4 Documents in Project
Summary
SCH Number
2021090273
Lead Agency
Amador County
Document Title
Ione Quarry Expansion Project
Document Type
NOD - Notice of Determination
Received
Posted
10/17/2025
Document Description
Ione Quarry Expansion Project Use Permit Amendment and Reclamation Plan Amendment for Specialty Granules (Ione), LLC (SGI) (SCH # 2021090273). This project proposes to expand the existing footprint and depth of Ione Quarry to access additional rock reserves. This expansion requires an amended Conditional Use Permit and an amended Reclamation Plan. The project involves the following major components:
1) Extending the Use Permit expiration date from December 31, 2075 to December 31, 2125 at current annual production rates;
2) Enlarging the quarry’s total surface disturbance from ±56 acres to ±136 acres;
3) Increasing the quarry’s floor depth from ±325 feet above sea to ±280 feet below sea level; and
4) Expanding overburden storage stockpiles on-site from ±34 acres to ±86 acres and increase elevation from ±350 feet above sea level to ±560 feet above sea level.
Contact Information
Name
Krista Ruesel
Agency Name
County of Amador Planning Department
Job Title
Planner
Contact Types
Lead/Public Agency
Address
Phone
Email
Name
Specialty Granules, LLC (Ione)
Agency Name
Specialty Granules, LLC (Ione)
Job Title
Project Applicant
Contact Types
Project Applicant
Phone
Location
Coordinates
Cities
Unincorporated
Counties
Amador
Regions
Unincorporated
Cross Streets
SR 104 / Twin Cities Road and Michigan Bar Road
Zip
95640
Total Acres
330
Jobs
1
Parcel #
005-080-016, 005-080-020
State Highways
104
Railways
Union Pacific
Airports
Eagles Nest
Waterways
Dry Creek, Mule Creek, Sutter Creek, Willow Creek
Township
T06N
Range
R09E
Section
16&17
Base
MDM
Notice of Determination
Approving Agency
Amador County
Approving Agency Role
Lead Agency
Approved On
County Clerk
Amador
Final Environmental Document Available at
Amador County Planning Department 810 Court St. Jackson, CA 95642
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
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(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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