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State
MDE-ARA-Permits recent views
State of Maryland —
Permits issued by the Maryland Department of the Environment's Air and Radiation Administration (description updated 2/17/2023) -
State
MD iMAP: Maryland Point Source Discharges - Point Source Discharges recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This dataset provides a digital geospatial representation of regulated facility... -
State
MD iMAP: Maryland Point Source Discharges - Significant Wastewater Treatment Plants recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Maryland Department of the Environment (MDE) identifies and maintains... -
State
MD iMAP: Maryland Tidal Waters recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
Surface Water Quality Assessments recent views
State of Maryland —
This is the 2014 Integrated Report. EPA approved this submission in accordance with Sections 303(d), 305(b), and 314(l) of the Clean Water Act, on October 16, 2015.... -
State
MDE-ARA-Violations recent views
State of Maryland —
Air and Radiation Administration violation data -
State
Discharge Permits in Significant Noncompliance recent views
State of Maryland —
Permit holders found to be in significant noncompliance (SNC) as required by §9-328.1 of the Environment Article. This list reflects the status in EPA's ICIS database... -
State
MDE WSA COMPLIANCE INSPECTIONS recent views
State of Maryland —
MDE Water and Science Administration (WSA) Inspection Story -
State
MD iMAP: Maryland Floodplain - Preliminary FEMA Floodplain recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This layer offers the anticipated floodplain boundaries however - the data shown... -
State
Maryland Ozone Exceedance Days in 2011 recent views
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
State
MD iMAP: IR2012 TWCateg4Bpts recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
Maryland Ozone Exceedance Days in 2009 recent views
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
State
MD iMAP: Tidal Waters - Shellfish/Bacteria Assessments only recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
MD iMAP: IR2012 RiversStreams recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
Maryland OEDs 2013 recent views
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Preliminary Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
State
Maryland Ozone Exceedance Days in 2007 recent views
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
State
MD iMAP: Maryland Water Quality - Tier II Catchments 2012 recent views
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This dataset provides the Tier II catchments delineated for the most... -
State
Maryland Ozone Exceedance Days in 2003 recent views
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
State
MD iMAP: Tidal Waters - Legacy Assessments only recent views
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
Maryland OEDs 2012 recent views
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone...