Initial Study #01-0049 Desert Valley Company Final Closure/Post Closure Maintenance Plan

Initial Study #01-0049 Desert Valley Company Final Closure/Post Closure Maintenance Plan

Desert Valley Company (DVC) has two open landfill cells (Cells I and II) which share a long berm at the Monofill Facility. The original closure plan for these cells proposed separate closure with a depression between the cells. In the recent construction of Cell II, it became apparent that the space or depression between the cells could be put to beneficial use. DVC proposes to utilize this space by taking the following steps: 1. Tie (connect) the liner systems of both cells together. This step includes replacement of some of the berm with a clay liner and connecting the high density polyethylene (HDPE) and leachate collection systems together. This activity could occur once Cell II has filled up to the proposed berm height so that there is no undue stress placed on the liner system. 2. Fill the space between the two cells with geothermal materials. 3. Close both cells as one unit.

Westmorland

Imperial

California Department of Conservation (DOC), California Department of Parks and Recreation, California Department of Transportation, District 11 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), California State Lands Commission (SLC), Department of Fish and Wildlife, Region 6, Resources Agency, Resources, Recycling and Recovery, State Water Resources Control Board, Divison of Financial Assistance, Department of Toxic Substances Control

Department of Toxic Substances Control

Other (Class II Solid Wast Facility Cell I and II Final Closure Plan)

Final Closure

Aesthetics, Air Quality, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Noise, Public Services, Transportation, Wildlife