Fourmile Hill Geothermal Development Project EIS/EIR

Calpine Corporation

RMT'S ROLE:

RMT prepared a joint EIS/EIR for a proposed 49.9-MW geothermal power plant, 25-mile, 230-kV transmission line, and associated facilities located within the Glass Mountain Known Geothermal Resource Area in the Modoc and Klamath National Forests in Siskiyou County, California. RMT prepared the Biological Assessment/Biological Evaluation and assisted with Section 7 consultation. RMT prepared a Historic Properties Treatment Plan and MOA and assisted with Section 106 consultation. RMT also prepared EAs for exploration in the area and assisted with mitigation monitoring efforts.

SIGNIFICANT ISSUES:

The significant environmental issues addressed included:

• Effects on wildlife
• Visual quality
• Recreational uses
• Cultural resources/Native American concerns