Conditional Use Permit (UP 2006-13) request for Geothermal Use at Solage Resort

Conditional Use Permit (UP 2006-13) request for Geothermal Use at Solage Resort

The project would utilize geothermal fluids at Solage Calistoga (formerly the Palisades Resort and Spa) for direct use in spa facilities, and to provide heat for swimming pools and domestic water. Geothermal fluids would be obtained from an existing on-site geothermal production well. The geothermal fluid use will be divided into two separate system: Spa Use System - the system will provide geothermal water, mixed with cold water, to the mineral pool and to the Spa Bath House. In the mineral pool, the mixed geothermal water will be added to make up for evaporation losses and to maintain a controlled mineral content in the pool water. In the Bath House, the mixed geothermal water will be used to fill bath tubs for use by spa clients. A small amount will also be used to make the mud used by clients as part of the spa treatment. All waste water from these uses will be directed to the City's sanitary sewer system. The geothermal water will be metered at the supply line, to determine the quantity eventually going into the sewer system. Direct Heat System - most of the geothermal flow will be used in a closed loop system, by which the hot geothermal fluid will heat swimming pools and domestic hot water through heat exchangers. The geothermal water will be kept separate from the pool and domestic water; only heat will be extracted. The mineral pool, main pool, and kids' pool will be heated, as well as domestic hot water for use in the spa buildings. After heat is extracted by the heat exchangers, the cooler geothermal water will be re-injected into the ground through a separate on-site injection well, to complete the loop, and replenish the resource.

Calistoga

Napa

California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Health Care Services (DHCS), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), Department of Water Resources, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance

Other (Geothermal)

Use Permit

Geology/Soils, Hydrology/Water Quality, Land Use/Planning, Sewer Capacity