Maps
Browse through maps depicting Bay health and restoration, including pollution trends, public access sites and more.
Long-Term Trend in Flow-Adjusted Total Phosphorus Concentration, 1985-2012
Date created: January 2, 2014Long Term Trend: Seventy-three percent of long-term stream monitoring sites in the Chesapeake Bay Watershed show improving flow-adjusted concentrations of phosphorus. Between 1985 and 2012: - 22 out of 30 sites show improving flow-adjusted trends for phosphorus concentrations, - 4 sites show degrading trends, and - 4 sites show small changes that are not statistically significant.
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Long-Term Trend in Flow-Adjusted Total Nitrogen Concentration, 1985-2012
Date created: January 2, 2014Long Term Trend: Seventy percent of long-term stream monitoring sites in the Chesapeake Bay Watershed have improving flow-adjusted concentrations of nitrogen. Between 1985 and 2012: - 21 out of 30 sites show improving flow-adjusted trends for nitrogen concentrations, - 3 sites show degrading trends, and - 6 sites show small changes that are not statistically significant.
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Chesapeake Bay Waters Meeting WQ Goals for the Shallow Water Bay Grasses Designated Use 2010-2012
Date created: November 6, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have SAV and/or water clarity standards for the Shallow Water Bay Grasses designated use during the 2010-2012 assessment period.
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Chesapeake Bay Waters Meeting WQ Goals for Open Water, Deep Water, and Deep Channel Uses 2010-2012
Date created: November 6, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have dissolved oxygen standards for the Open Water, Deep Water, and Deep Channel designated use during the 2010-2012 assessment period.
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Chesapeake Bay Waters Meeting Chlorophyll a Criteria Water Quality Goals 2010-2012
Date created: November 6, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have numeric chlorophyll a standards for the Open Water designated use during the 2010-2012 assessment period.
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Chesapeake Bay Waters Meeting WQ Goals for the Migratory, Spawning and Nursery Habitat Use 2010-2012
Date created: November 6, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have dissolved oxygen standards for the Migratory, Spawning and Nursery Habitat designated use during the 2010-2012 assessment period.
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Chesapeake Bay Waters Meeting Chlorophyll a Criteria Water Quality Goals 2009-2011
Date created: September 12, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have numeric chlorophyll a standards for the Open Water designated use during the 2009-2011 assessment period.
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Chesapeake Bay Waters Meeting WQ Goals for the Migratory, Spawning and Nursery Habitat Use 2009-2011
Date created: September 12, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have dissolved oxygen standards for the Migratory, Spawning and Nursery Habitat designated use during the 2009-2011 assessment period.
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Chesapeake Bay Waters Meeting WQ Goals for Open Water, Deep Water, and Deep Channel Uses 2009-2011
Date created: September 12, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have dissolved oxygen standards for the Open Water, Deep Water, and Deep Channel designated use during the 2009-2011 assessment period.
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Chesapeake Bay Waters Meeting WQ Goals for the Shallow Water Bay Grasses Designated Use 2009-2011
Date created: September 12, 2013This map demonstrates the attainment status of those Chesapeake Bay Program monitoring segments that have SAV and/or water clarity standards for the Shallow Water Bay Grasses designated use during the 2009-2011 assessment period.
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