USGS - science for a changing world

Environmental Health - Toxic Substances

Bibliography

U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Colorado Springs, Colorado, September 20-24, 1993, Water-Resources Investigations Report 94-4015

Previous PageTable of ContentsNext Page

Hydrodynamics of California's Sacramento-San Joaquin Delta, and the Collection of Flow Data for the Tracking of Pesticides

by

Richard N. Oltmann (U.S. Geological Survey, Sacramento, Calif.)

Abstract

The Sacramento and San Joaquin Rivers drain the Central Valley of California where 10 percent of the pesticides used in the United States are applied. The two rivers converge at the head of San Francisco Bay, forming a complex delta consisting of many interconnected sloughs and channels. The tracking of pesticides within and through the delta is difficult because flows are being manipulated constantly and measured-flow data are lacking. Ultrasonic velocity meters and an acoustic Doppler flow-measuring system are being used to collect the flow data necessary to improve understanding of the hydrodynamics of the delta and to track pesticides entering the delta.

Previous PageTable of ContentsNext Page

USGS Home Water Land Resources Science Systems Ecosystems Energy and Minerals Environmental Health Hazards

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: toxics.usgs.gov/pubs/cos-procee/sec.h-sfbay/oltmann.final.html
Page Contact Information:
Page Last Modified: Tuesday, 04-Aug-2015 15:15:53 EDT