For many years, the District has been collecting precipitation and stream flow data from a network of over 90 rain and steam gauges throughout the county. The data is used to estimate potential flood conditions.

The District has developed a Geographic Information System (GIS) and supporting databases to provide the public with access to our detailed data on mean annual precipitation, slope, and hydrologic soil group. Click here to download the GIS files. You can use this data with GIS software to perform hydrologic overlay computations.