Data Analysis & Reports
Current & Recent Conditions
Some water resources monitoring data are updated and available on either a “real time” basis or at relatively short time intervals. These data are presented with historical data from the same site to compare the current conditions to normal and extreme conditions. View current and recent hydrologic conditions.
Water Resources Annual Reports
Staff from the Water Resources Team in the Department of Building & Development prepare annual water resources monitoring data summary reports on conditions during the calendar year. The most recent report is for 2015.
Preliminary Data Analysis
Water resources data are compiled and analyzed by county staff to help address questions related to various types of issues including land development application reviews, regulatory policies, environmental quality, and other water-related concerns. A baseline analysis of the available data was conducted in 2007 and 2008 by county staff and an independent consulting firm.
Watershed Planning Report
- Stream Discharge
- Stream Water Quality
- Wells and Groundwater Quality
- Groundwater Quality
- Onsite Water Disposal
- Preliminary Information
- Water Resource Data Summary
An analysis and evaluation of water resource conditions by the engineering and consulting firm CH2M Hill, Inc. is summarized in Appendix A
of the consultant's 2008 Comprehensive Watershed Management Plan
report for Loudoun County.