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

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

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

None

Riverside

Countywide, Southern California