NOD for Revision No. 2 to Surface Mining Permit No. 159R2

3 Documents in Project

Summary

SCH Number
2018051029
Lead Agency
Riverside County
Document Title
NOD for Revision No. 2 to Surface Mining Permit No. 159R2
Document Type
NOD - Notice of Determination
Received
Posted
9/24/2020
Project Applicant
Chandler Aggregates, Inc.
Present Land Use
Mining and open space

Document Description
NOD for Revision No. 2 to Surface Mining Permit 159 (SMP 159R2). SMP 159R2 is a revision to the existing mining and reclamation plan to accommodate an expansion of mining activities from approximately 150.4 acres to approximately 204.9 acres, or an increase of disturbance on-site of 54.5 acres. The Gilman Springs Mine (herein, “Mine”) encompasses approximately 1,021.4 acres. Additionally, SMP159R2 would increase mining reserves from approximately 14,000,000 tons to 44,000,000, or an increase of approximately 30,000,000 tons. SMP159R2 also would enhance the site’s utility by allowing for the recycling of broken concrete, asphalt, and other inert materials, which would be used as an Inert Debris Engineered Fill Operation (IDEFO) as part of site reclamation. SMP159R2 would accommodate an expansion of the approved limits of aggregate mining activities, facilitate more efficient export processing of aggregate materials from the Mine site by altering the days and hours of operation within 300 feet of the Mine site’s boundary, establish an annual tonnage limit on import and export of materials to and from the Mine site that is reflective of the Mine site’s mining capacity, reclaim the 204.9 acres subject to mining activities to a suitable condition by revising SMP159 to identify ultimate site elevations in conformance with Surface Mining and Reclamation Act of 1975 (SMARA) and the regulations and requirements of Riverside County, assist Riverside County in achieving the conservation objectives of the Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP), and establish updated standards for operational mining activities at the Gilman Springs Mine site that provide flexibility in mining operations. No changes are proposed to the annual tonnage limit of 1,000,000 tons per year, and tonnages of both the mining activities and the IDEFO would be included as part of the site’s 1,000,000-ton annual limit. Additionally, SMP159R2 also includes a proposed reclamation plan that shows the proposed slopes and final grading contours planned upon completion of mining activities on site. The Project also proposes a change in timing for approved for mining activities within 300 feet of the Mine boundary from between 7:00 a.m. and 10:00 p.m. excluding Sundays and federal holidays, to between 6:00 a.m. and 10:00 p.m., seven days per week including Sundays and federal holidays. All operations located more than 300-feet from the outside project boundary may operate 24-hours per day throughout the site. The proposed surface mining permit revision proposes a 50-year life of permit until December 31, 2070

Contact Information
Jay Olivas
Riverside County Planning Department
4080 Lemon Street 12th Floor
Riverside, CA 92501

Phone : (760) 863-7050
jolivas@RIVCO.ORG

Location

Coordinates
33°52'52"N 117°2'25"W
Cities
None
Counties
Riverside
Regions
Countywide Southern California
Cross Streets
Gilman Springs Road at Bridge Street
Zip
92555
Total Acres
1,021.4 acres
Jobs
8
Parcel #
422-240-(007, 008), 423-240-(001, 018, 019, 020, 021, 022, 023, 024), and 424-190-(001, 002)
State Highways
79
Railways
None
Airports
None
Schools
None
Waterways
None
Township
3S
Range
1&2W
Section
25, 36
Base
San Bern

Notice of Determination

Approving Agency
Riverside County Planning Commission
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
https://planning.rctlma.org/Home/Planning-Notices/Gilman-Springs-Mine

Determinations

(1) The project will have a significant impact on the environment
Yes
(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
Yes
(6) Findings were made pursuant to the provisions of CEQA
Yes

Attachments

Notice of Determination
NOD - SMP 159R2 (2020-09-24)   PDF 267 K

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