Description: This point dataset represents baseline Tier II MBSS stations used to designate each high quality Tier II stream segment within the State of Maryland. Each point represents either one benthic macroinvertebrate station location or one fish station location. This dataset currently contains 412 points, based on data collected between 1995 – 2015.
Definition Expression: N/A
Copyright Text: Creator: Maryland Department of the Environment, Science Services Administration (MDE SSA)
Assessment Data: Maryland Department of Natural Resources, Monitoring and Non-tidal Assessment Division, Maryland Biological Stream Survey Program (DNR MBSS), MDE SSA, Baltimore County Department of Environmental Protection and Sustainability, Frederick County Department of Sustainability and Environmental Resources, and various non-government certified entities.
Other Geospatial Data: USGS
Description: This dataset consists of a digital geospatial representation of all identified Tier II segments in the State of Maryland. Based on data collected between 1995-2015, this dataset currently contains information for 253 designated Tier II stream segments. Main segment breakpoints were determined using the 100,000:1 National Hydrography Dataset (NHD). The final designated Tier II segments are the merged sub segments that make up the 24,000:1 NHD meeting the 100,000:1 breakpoints. Tier II stream segments generally terminate at confluences, impoundment outfalls, and tidal boundaries. Last Update: 9/11/2016
Contact: Angel D. Valdez,
Antidegradation Implementation Lead
Maryland Department of the Environment, 1800 Washington Blvd, Baltimore, MD 21230
Phone: 410-537-3606
E-Mail: angel.valdez@maryland.gov
Definition Expression: N/A
Copyright Text: Creator: Maryland Department of the Environment, Water and Science Administration (MDE WSA), Assessment Data: Maryland Department of Natural Resources, Monitoring and Non-tidal Assessment Division, Maryland Biological Stream Survey Program (DNR MBSS), MDE SSA, Baltimore County Department of Environmental Protection and Sustainability, Frederick County Department of Sustainability and Environmental Resources, and various non-government certified entities.
Other Geospatial Data: USGS
Description: This dataset represents the 62 Tier II catchments, or watersheds located within the State of Maryland coinciding with Tier II stream segments with no assimilative capacity. These catchments may overlap. This dataset is generated based on data collected between 2003-2015. Last Update: 9/11/2016
Contact: Angel D. Valdez,
Antidegradation Implementation Lead
Maryland Department of the Environment, 1800 Washington Blvd, Baltimore, MD 21230
Definition Expression: N/A
Copyright Text: Creator: Maryland Department of the Environment, Water and Science Administration (MDE WSA), Assessment Data: Maryland Department of Natural Resources, Monitoring and Non-tidal Assessment Division, Maryland Biological Stream Survey Program (DNR MBSS), MDE SSA, Baltimore County Department of Environmental Protection and Sustainability, Frederick County Department of Sustainability and Environmental Resources, and various non-government certified entities.
Other Geospatial Data: USGS