Search datasets
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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: 198.91 | 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: 193.43 | 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: 191.43 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
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...
Search relevance: 158.24 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
The U.S. Army Space and Missile Defense Command (SMDC) in support of the Ballistic Missile Defense Organization (BMDO) sponsored a marine biological survey at Wake Atoll, located approximately...
Search relevance: 138.25 | Views last month: 1 | Catalog Last Checked: October 26, 2026 at 07:19 PM -
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of total nitrogen and total phosphorus discharged to surface waters in the Pacific Northwest region...
Search relevance: 100.64 | Views last month: 2 | Catalog Last Checked: October 29, 2026 at 08:02 AM -
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of total nitrogen and total phosphorus discharged to surface waters in the Pacific Northwest region...
Search relevance: 89.45 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:15 PM -
This USGS Data Release includes hydrologic data compiled for selected years during the period 1990-2017 to support the development and calibration of a numerical groundwater model used to simulate...
Search relevance: 66.80 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:17 PM -
This database shows the location of publicly owned treatment works, and other significant point source discharges to surface waters at or near the contiguous U.S. coastline. Three types of...
Search relevance: 58.48 | Views last month: 5 | Catalog Last Checked: August 02, 2026 at 11:47 PM -
The Maryland Department of the Environment (MDE) identifies and maintains locations of significant wastewater treatment plants throughout Maryland.
Search relevance: 52.45 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:48 PM -
The Maryland Department of the Environment (MDE) identifies and maintains locations of significant wastewater treatment plants throughout Maryland.
Search relevance: 49.78 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
The SPDES Multi-Sector General Permit (MSGP), which is administered by the Department of Environmental Conservation (the Department), regulates stormwater discharges associated with industrial...
Search relevance: 46.55 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 05:57 PM -
This U.S. Geological Survey (USGS) data release contains model scenario input and output files and nine hydrology and water-quality models developed using the Soil and Water Assessment Tool...
Search relevance: 46.34 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:30 PM -
The Yuma Desalting Plant (YDP), which includes the Water Quality Improvement Center (WQIC), discharges effluent from desalted water into the Colorado River in Yuma, AZ just upstream of the...
Search relevance: 43.83 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:45 PM -
This collection contains comprehensive datasets and reports collected in support of the Mamala Bay Study during 1993-1995. Physical, chemical, biological, and geological datasets and reports are...
Search relevance: 35.47 | Views last month: 8 | Catalog Last Checked: October 27, 2026 at 12:12 AM -
Multiple sources of mine drainage including discharge from the abandoned Dinero mine tunnel and two gulches flow into a wetland, known herein as the Dinero wetland along the Lake Fork Creek...
Search relevance: 31.76 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:49 PM -
This data release provides data in support of an assessment of water quality and discharge in the Herring River at the Chequessett Neck Road dike in Wellfleet, Massachusetts, from November 2015 to...
Search relevance: 24.98 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:38 PM
