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This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The sample sites are color coded according to the Benthic Index of Biotic Integrity (BIBI) scores....
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 02, 2026 at 11:12 PM -
The data presented in this data release includes 11 field/water quality parameters, concentrations of 16 nutrients/anions, dissolved organic carbon, 14 organic contaminants, net estrogenicity...
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This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The MBSS assesses the ecological condition of 1st-4th order streams statwide (1995 - 2014). Biological - ...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:09 PM -
This data release contains the concentration and quality assurance results for 29 streams, sampled twice, and 1 stream, sampled once, in the Chesapeake Bay Delmarva row crop region (Maryland and...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 05:30 AM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The stream reaches are color coded according to the Combined Index of Biotic Integrity (CIBI) scores of...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:11 PM -
This data release contains the concentration and quality assurance results for 30 streams, sampled twice. In 2023, the typology sampled was Pennsylvania and Maryland Piedmont mixed agriculture....
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:14 AM -
The southern Appalachian Mountains have experienced a large population growth over the past 30 years. Land use practices are shifting and forests are being converted into residential land. The...
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Each year from 2021 to 2024, teams from the U.S. Geological Survey and the Virginia Polytechnic Institute and State University (Virginia Tech) studied 30 streams with a targeted gradient of land...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:03 AM -
This data release provides contaminant data from bed sediment collected from small streams between 2021 and 2024 in the Chesapeake Bay Watershed. These data are part of a larger study designed to...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: August 01, 2026 at 04:55 AM
