National Water Quality Assesment
Pesticide National
Synthesis Project
Sources & Limitations of Data
Annual Use Index
USGS Pesticide National Synthesis Project
If you have questions or comments regarding this data,
please contact Gail P. Thelin at
gpthelin@usgs.gov,
(916) 278-3095
This page maintained by
Tamara Shelton, tshelton@usgs.gov