Hot Spring Monitoring at Lassen Volcanic National Park, California 1983-1985

Conference · Tue Jan 21 04:00:00 EST 1986

OSTI ID:887117

Sorey, Michael L

Data collected on several occasions between 1983 and 1985 as part of a hydrologic monitoring program by the U.S. Geological Survey permit preliminary estimation of the natural variability in the discharge characteristics of hydrothermal features in Lassen Volcanic National Park and the Lassen KGRA in northern California. The total rate of discharge of high-chloride hot springs along Mill Creek and Canyon Creek in the Lassen KGRA has averaged 20.9 {+-} 1.7 L/s, based on seven measurements of the flux of chloride in these streams. Measured chloride flux does not appear to increase with streamflow during the spring-summer snowmelt period, as observed at Yellowstone and Long Valley Caldera. The corresponding fluxes of arsenic in Mill Creek and Canyon Creek decrease within distances of about 2 km downstream from the hot springs by approximately 30%, most likely due to chemical absorption on streambed sediments. Within Lassen Volcanic National Park, measurements of sulfate flux in streams draining steam-heated thermal features at Sulphur Works and Bumpass Hell have averaged 7.5 {+-} 1.0 and 4.0 {+-} 1.5 g/s, respectively. Calculated rates of steam upflow containing, dissolved H{sub 2}S to supply these sulfate fluxes are 1.8 kg/s at Sulphur Works and 1.0 kg/s at Bumpass Hell.

• Research Organization: U.S. Geological Survey, Menlo Park, California
• Sponsoring Organization: USDOE
• DOE Contract Number: AS03-80SF11459
• OSTI ID: 887117
• Report Number(s): SGP-TR-93-21
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
15 GEOTHERMAL ENERGY
ABSORPTION
ARSENIC
AVAILABILITY
CALIFORNIA
CHLORIDES
GEOLOGIC SURVEYS
Geothermal Legacy
HOT SPRINGS
LONG VALLEY
MONITORING
RESERVOIR ENGINEERING
SEDIMENTS
STEAM
STREAMS
SULFATES