-
State
MD iMAP: Maryland Tidal Waters
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
VT Water Classifications
Vermont Center for Geographic Information —
The Vermont Water Quality Standards (VTWQS) are rules intended to achieve the goals of the Vermont Surface Water Strategy, as well as the objective of the federal... -
Federal
Physical and chemical characteristics of samples collected in the East Poplar oil field study area, Fort Peck Indian Reservation, 1952-2016
Department of the Interior —
These produced datasets include water-quality and quality assurance results collected by the USGS and other entities from 1952 to 2016 near the City of Poplar as well... -
State
Water Withdrawals by Facility: Beginning 2009
State of New York —
Data regarding water withdrawals is collected by New York State Department of Environmental Conservation (DEC). The reporting requirements have expanded since... -
Federal
Select Groundwater-Quality and Quality-Control Data from the National Water-Quality Assessment Project 2019 to Present (ver. 4.0, April 2025)
Department of the Interior —
Groundwater samples were collected and analyzed from 1,015 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National... -
State
MD iMAP: IR2012 Impoundments
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 TWshellharv
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 TWcontactrec
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
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... -
Federal
Estimating Domestic Self-Supply Water Use for the Delaware River Basin, 2000 U.S. Census Block Groups
Department of the Interior —
According to the U.S. Geological Survey, an estimated 258 million people nationwide, or 86% of the U.S. population, relied on public water supplies for their... -
Federal
Datasets of Groundwater-Quality and Select Quality-Control Data from the National Water-Quality Assessment Project, January 2017 through December 2019 (ver. 1.1, January 2021)
Department of the Interior —
Groundwater-quality data were collected from 983 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality... -
State
MD iMAP: IR2012 TWdefault
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: Tidal Waters - Fish Tissue and Metals Assessments only
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... -
Federal
Estimating Domestic Self-Supply Water Use for the Delaware River Basin, 2010 U.S. Census Blocks
Department of the Interior —
According to the U.S. Geological Survey, an estimated 258 million people nationwide, or 86% of the U.S. population, relied on public water supplies for their... -
State
MD iMAP: Maryland Rivers
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 TW8dgt
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: Tidal Waters - Swimming/Bacteria Assessments only
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 TWCateg4Bpts
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: Maryland Impoundments
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... -
Federal
Datasets from Groundwater-Quality and Select Quality-Control Data from the National Water-Quality Assessment Project, January through December 2016, and Previously Unpublished Data from 2013 to 2015
Department of the Interior —
Groundwater-quality data were collected from 648 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality...