Steve Ackley (Former Employee)
Science and Products
Filter Total Items: 62
Determining Water Availability in the Russian River Watershed
The Russian River Watershed covers 1,500 square miles of urban, agricultural and forested lands in northern Sonoma County and southern Mendocino County, California. Communities in the Russian River Watershed (RRW) depend on a combination of Russian River water and groundwater to meet their water-supply demands. Water is used primarily for agricultural irrigation, municipal and private wells supply...
Imaging 3D mammal burrow structure at 2 infested levee site with Ground-Based Tripod LiDAR
In advance of the US Army Corps of Engineers new policy enforcement that prohibits trees within 15-feet (4.5 meter) of levees and floodwalls, DWR, SAFCA, the US Army Corps of Engineers, University of California Berkeley, the University of California Davis, and USGS are studying the biological process (trees and mammal burrows) that have the greatest impact on levee integrity.
Mapping Sturgeon Spawning Habitat in the Lower San Joaquin River
The spawning of adult white sturgeon ( Acipenser transmontanus) in the lower San Joaquin River was documented recently by the United States Fish and Wildlife Service (USFWS) (Gruber and others, 2012; Jackson and Eenennaam, 2013). Streamflow on the San Joaquin River has been modified by State and Federal water project operations, and there are a variety of questions regarding the effects on fish...
Assessment of environmental impacts of mercury treatability test using suction dredging, South Yuba River
The goals of the BLM suction dredging treatability study are to (1) assess the effectiveness of suction dredging in removing mercury from the environment and (2) assess potential impacts of suction dredging with regard to discharging mercury-contaminated suspended sediment to the aquatic environment.
Mercury and Dissolved Organic Matter in Delta Wetlands
Between 1860 and 1914, hydraulic mining activities sent more than 800,000,000 cubic yards of mercury-laden sediment into the Delta altering the landscape, water flows, and contributing to the leveeing and reclamation of the Delta's marshes. Transport of mercury from historic mining areas continues today. The sedimentary supply of mercury to the Delta and in Delta sediments (cinnabar, metacinnabar...
Scoping Study of Los Angeles River-Arroyo Seco Confluence Park
The Mountains Recreation and Conservation Authority (MRCA) is considering plans for developing a new park at the confluence of the Los Angeles River and the Arroyo Seco. These plans include removing channel lining and creating a temporary lake using an inflatable rubber dam. Before implementing the plan, a wide array of scientific and engineering issues must be addressed. The U.S. Geological...
Science and Products
Filter Total Items: 62
Determining Water Availability in the Russian River Watershed
The Russian River Watershed covers 1,500 square miles of urban, agricultural and forested lands in northern Sonoma County and southern Mendocino County, California. Communities in the Russian River Watershed (RRW) depend on a combination of Russian River water and groundwater to meet their water-supply demands. Water is used primarily for agricultural irrigation, municipal and private wells supply...
Imaging 3D mammal burrow structure at 2 infested levee site with Ground-Based Tripod LiDAR
In advance of the US Army Corps of Engineers new policy enforcement that prohibits trees within 15-feet (4.5 meter) of levees and floodwalls, DWR, SAFCA, the US Army Corps of Engineers, University of California Berkeley, the University of California Davis, and USGS are studying the biological process (trees and mammal burrows) that have the greatest impact on levee integrity.
Mapping Sturgeon Spawning Habitat in the Lower San Joaquin River
The spawning of adult white sturgeon ( Acipenser transmontanus) in the lower San Joaquin River was documented recently by the United States Fish and Wildlife Service (USFWS) (Gruber and others, 2012; Jackson and Eenennaam, 2013). Streamflow on the San Joaquin River has been modified by State and Federal water project operations, and there are a variety of questions regarding the effects on fish...
Assessment of environmental impacts of mercury treatability test using suction dredging, South Yuba River
The goals of the BLM suction dredging treatability study are to (1) assess the effectiveness of suction dredging in removing mercury from the environment and (2) assess potential impacts of suction dredging with regard to discharging mercury-contaminated suspended sediment to the aquatic environment.
Mercury and Dissolved Organic Matter in Delta Wetlands
Between 1860 and 1914, hydraulic mining activities sent more than 800,000,000 cubic yards of mercury-laden sediment into the Delta altering the landscape, water flows, and contributing to the leveeing and reclamation of the Delta's marshes. Transport of mercury from historic mining areas continues today. The sedimentary supply of mercury to the Delta and in Delta sediments (cinnabar, metacinnabar...
Scoping Study of Los Angeles River-Arroyo Seco Confluence Park
The Mountains Recreation and Conservation Authority (MRCA) is considering plans for developing a new park at the confluence of the Los Angeles River and the Arroyo Seco. These plans include removing channel lining and creating a temporary lake using an inflatable rubber dam. Before implementing the plan, a wide array of scientific and engineering issues must be addressed. The U.S. Geological...