Historical Data

Download Historic Data

Provisional data may be inaccurate due to instrument malfunctions or physical changes at the measurement site. Subsequent review based on field inspections and measurements may result in significant revisions to the data. Provisional data is subject to revision until they have been thoroughly reviewed and received final approval.

Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.

Information concerning the accuracy and appropriate uses of these data or concerning other hydrologic data may be obtained from the EAA.

Customize Data Graphs

This tool can be used to display an interactive line graph of well or spring readings between 2 selected dates.