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Beach Monitoring and Advisories 2005 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2007 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2008 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2009 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2010 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2011 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2012 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2013 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2014 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2015 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Beach Monitoring and Advisories 2016 Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic...

Virginia Department of Health (VDH) monitors bacteria levels in beach water at 46 public beaches on the Chesapeake Bay and the Atlantic Ocean during the swimming season...

U.S. Route 360 through Virginia GIS dataset. Source: Wikipedia

Chesapeake Bay Program Segments (CBPSEGs) collectively form a grid over the Chesapeake Bay and its tidal tributaries, that can be used (amongst other things) for...

Harmful Algal Bloom (HAB) data from 2016 Algal Bloom Surveillance Map by VDH via the Wayback Machine. Reference: Harmful Algal Blooms (HABs) - VDH Source: Harmful Algal Bloom...

Harmful Algal Bloom (HAB) data from 2017 Algal Bloom Surveillance Map by VDH. Reference: Harmful Algal Blooms (HABs) - VDH Source: Harmful Algal Bloom (HAB) Map 2017

USGS Active Water Network data for the commonwealth of Virginia. Active Wells and Springs in Virginia, and related in Maryland and North Carolina....

US Census Block Groups 2013 GIS dataset for the commonwealth of Virginia via: https://www.census.gov/geo/maps-data/

Chesapeake Bay National Estuarine Research Reserve - Watershed Boundaries via NERRS Centralized Data Management Office: http://cdmo.baruch.sc.edu/get/gis.cfm

Chesapeake Bay National Estuarine Research Reserve (CBNERR) reserve boundaries GIS dataset. via NERRS Centralized Data Management Office:...