Search datasets
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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: August 04, 2026 at 09:15 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: 7 | Catalog Last Checked: August 02, 2026 at 11:08 PM -
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...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 02, 2026 at 11:08 PM -
Discharge monitoring reports (DMRs) and monthly operating reports (MORs) for the 58 major WWTPs, 215 minor WWTPs, and 10 major industrial point sources within the State of Maryland and are stored...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 02, 2026 at 11:08 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)...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 02, 2026 at 11:08 PM -
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: August 02, 2026 at 11:12 PM -
Maryland Department of the Environment - Air and Radiation Administration (ARA) Compliance
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 04, 2026 at 09:15 PM -
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: August 02, 2026 at 11:12 PM -
MDE CSAR Leadership Analysis of FY21 and Summary of FY22 Approach (description updated 3/6/2023)
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:11 PM -
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...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:11 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: August 02, 2026 at 11:08 PM -
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The DFIRM Database presents the flood risk information depicted on a given Flood Insurance Rate Map (FIRM) in a...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:08 PM -
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...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:12 PM -
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: August 02, 2026 at 11:06 PM -
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: August 02, 2026 at 11:12 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: 3 | Catalog Last Checked: August 02, 2026 at 11:10 PM -
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...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:09 PM -
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: 2 | Catalog Last Checked: August 02, 2026 at 11:05 PM -
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...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:06 PM -
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...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:10 PM
