Error message

User warning: The following module has moved within the file system: libraries. In order to fix this, clear caches or put the module back in its original location. For more information, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1128 of /sysldeo/web/ldeodocs/includes/bootstrap.inc).
USGS Database Access

We have been collaborating with the USGS since 1995 analyzing several hundred groundwater samples per year. The project focuses on the application of environmental tracers in order to better understand the hydrological settings of the sampled groundwater bodies. Many questions arrise from issues of shallow groundwater contamination from agricultural chemicals (nitrate, pesticides, etc.). The period of the current contract is 2011 to 2016.

The following link grands access to our groundwater database (password protected).

Groundwater Database


P. Schlosser, M. Stute, J.F. Clark, S. Dunkle-Shapiro, D.T. Ho, B. Ekwurzel, T. Torgersen, S.Drenkard