The Long Valley Hydrologic Advisory Committee (LVHAC), formed in 1987, reviews hydrological data and makes non-binding suggestions for monitoring and project conditions meant to protect the thermal and non-thermal hydrologic resources of the Long Valley Caldera.
LVHAC membership is open to all governmental agencies that have geothermal or hydrology related permitting, regulatory, or operational activities within the Long Valley Caldera and non-governmental interests of persons or entities owning equity in an enterprise that controls hydrologic or geothermal resources.
Currently active members:
Bureau of Land Management (BLM)
California Department of Fish & Wildlife
California Division of Oil, Gas & Geothermal Resources
California Energy Commission
Lahontan Regional Water Quality Control Board
Mammoth Community Water District
Mammoth Lakes, Town of
Mono County Community Development Department
Ormat Nevada Inc.
U.S. Forest Service (USFS)
Member without voting rights: U.S. Geological Survey (USGS)
Interested parties: Great Basin Unified Air Pollution Control District (GBUAPCD), Hot Creek Ranch Inc., Los Angeles Department of Water and Power (LADWP), and Sierra Club