Mathieu Marineau
Mathieu Marineau - Associate Director for Studies - Washington Water Science Center.
Science and Products
Filter Total Items: 54
Salmon Creek Basin
Two reservoirs in the Salmon Creek Basin in north-central Washington store runoff from the upper basin for out-of-basin irrigation of farmlands. The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation (Reclamation), developed a precipitation-runoff model that simulates historical daily unregulated streamflows for different locations in the Salmon Creek Basin. The model can...
Nitrate in GW, Lower Umatilla Basin, OR
Stretching from Pendleton, Oreg., to the Columbia River, the Lower Umatilla Basin covers 550 square miles. Concentrations of nitrate in the basin's ground water frequently exceed national drinking-water standards. The basin's complex ground-water system is exposed to five human-related sources of nitrate: septic tanks, feedlots, explosives, fertilizer, and land applications of food waste. To help...
Nooksack River Ground-Water Bacteria
The lower Nooksack River Basin is located in Whatcom County, in the northwestern part of Washington. Within areas of the basin, the ground-water aquifer is shallow. Knowledge of how the surface water and the aquifer interact, and how this interaction affects the transport of bacteria and nitrates from agricultural fields to the ground-water system, is important to residents of the basin. This is...
Puyallup Streamflow Trends
Covering about 28 square miles along the lower reaches of the Puyallup River in Pierce County, the Puyallup Indian Reservation is located in the lowest part of the basin. For this reason, all water-related activities in the basin affect the Puyallup Tribe of Indians' water resources and fish. Because of their important links to the Puyallup River, the Puyallup Tribe of Indians want to know more...
Satus Creek
After irrigating croplands, water returned to creeks and rivers in the Yakima River Basin can contribute compounds and materials that affect the quality of habitat. On lands of the Yakama Nation, Satus Creek receives water from the North Drain that brings with it sediment, nutrients, bacteria, and pesticides, degrading the aquatic habitat and posing a barrier for endangered fish in the creek. A...
Urban Pesticide
Salmon and other aquatic life in the Puget Sound Basin need a healthy habitat to survive and to recover from historical declines, both in urban and agricultural settings. Yet, USGS studies in 1997 and 1998 found that more pesticides were found in urban streams than in agricultural streams, and that 9 out of 10 samples from urban streams had concentrations of insecticides exceeding levels deemed...
Science and Products
Filter Total Items: 54
Salmon Creek Basin
Two reservoirs in the Salmon Creek Basin in north-central Washington store runoff from the upper basin for out-of-basin irrigation of farmlands. The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation (Reclamation), developed a precipitation-runoff model that simulates historical daily unregulated streamflows for different locations in the Salmon Creek Basin. The model can...
Nitrate in GW, Lower Umatilla Basin, OR
Stretching from Pendleton, Oreg., to the Columbia River, the Lower Umatilla Basin covers 550 square miles. Concentrations of nitrate in the basin's ground water frequently exceed national drinking-water standards. The basin's complex ground-water system is exposed to five human-related sources of nitrate: septic tanks, feedlots, explosives, fertilizer, and land applications of food waste. To help...
Nooksack River Ground-Water Bacteria
The lower Nooksack River Basin is located in Whatcom County, in the northwestern part of Washington. Within areas of the basin, the ground-water aquifer is shallow. Knowledge of how the surface water and the aquifer interact, and how this interaction affects the transport of bacteria and nitrates from agricultural fields to the ground-water system, is important to residents of the basin. This is...
Puyallup Streamflow Trends
Covering about 28 square miles along the lower reaches of the Puyallup River in Pierce County, the Puyallup Indian Reservation is located in the lowest part of the basin. For this reason, all water-related activities in the basin affect the Puyallup Tribe of Indians' water resources and fish. Because of their important links to the Puyallup River, the Puyallup Tribe of Indians want to know more...
Satus Creek
After irrigating croplands, water returned to creeks and rivers in the Yakima River Basin can contribute compounds and materials that affect the quality of habitat. On lands of the Yakama Nation, Satus Creek receives water from the North Drain that brings with it sediment, nutrients, bacteria, and pesticides, degrading the aquatic habitat and posing a barrier for endangered fish in the creek. A...
Urban Pesticide
Salmon and other aquatic life in the Puget Sound Basin need a healthy habitat to survive and to recover from historical declines, both in urban and agricultural settings. Yet, USGS studies in 1997 and 1998 found that more pesticides were found in urban streams than in agricultural streams, and that 9 out of 10 samples from urban streams had concentrations of insecticides exceeding levels deemed...