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Maryland Department of the Environment - Land Management Administration (LMA) - Solid Waste Permits
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: September 15, 2026 at 09:58 PM -
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 downstream Tier II segment. This...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 06:49 PM -
Maryland Department of the Environment (MDE) Water and Science Administration (WSA) Violations information
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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 can cause health effects...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 06:51 PM -
Maryland 8-Hour Ozone Concentrations Exceeding 2015 Health-Based Standard in ppb, Finalized Data. In 2015 EPA set the ozone standard to 70 ppb. High levels of ozone can cause health effects...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:48 PM -
This data set containslists of State Implementation Plan documents and supporting files. The State Implementation Plans are formal submissions to the Environmental Protection Agency by which...
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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 can cause health effects...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:51 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The intent of this dataset is for it to be used to produce maps and provide a spatial reference for all...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:49 PM -
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 outfalls using data derived...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:51 PM -
This dataset provides a digital geospatial representation of regulated facility outfalls using data derived from various source data. The process by which this data set has been developed has been...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:51 PM -
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. The Integrated Report (IR)...
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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 locations of significant wastewater...
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Permits issued by the Maryland Department of the Environment's Air and Radiation Administration (description updated 2/17/2023)
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Leverage science and planning to build climate resilience for MDE’s water resource management responsibilities: drinking water, dam safety, stormwater management, and flood management. Dataset...
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This layer was created by integrating three datasets to estimate buildings in Maryland 35,000 square feet and above: "2024 Second Quarter Computer Assisted Mass Appraisal Building" from the...
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NOTE: This dataset is no longer updated. Due to a change in databases, overflows after after January 31, 2023 are reported at...
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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 geospatially depict the surface water...
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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 can cause health effects...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
The Maryland Department of the Environment (MDE) identifies and maintains locations of significant wastewater treatment plants throughout Maryland.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
Maryland Department of the Environment (MDE) - Water and Science Administration (WSA) Complaints
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 15, 2026 at 09:57 PM
