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NHD Major Rivers, Major Rivers and Creeks, Major Lakes and Reservoirs
The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information... -
MO 2016 Section 303d Listed Impaired Rivers And Streams Shapefiles
This data set contains Missouri's 2016 Section 303(d) Listed Waters - Rivers and Streams and is a list of certain impaired waters in the State of Missouri. The list is a... -
i12 CalSIMII InflowData Timeseries
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
Impaired Streams 2008
Under Section 303(d) of the Clean Water Act, states are required from "time to time" to submit a list of waters for which effluent limits will not be sufficient to meet all... -
i12 CalSIMII InflowData
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
Salt Water Limit
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It is... -
Salt Water Limit
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It is... -
i12 CalSIMII InflowData
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
Summer Low Flow Trend Indicator 1975-2016
Trend in annual minimum 30-day average summer flows, statewide, Oct 1975 through Oct 2016 -
Impaired Streams 2010
Under Section 303(d) of the Clean Water Act, states are required from "time to time" to submit a list of waters for which effluent limits will not be sufficient to meet all... -
Aquatic Biological Monitoring Sampling Locations: Beginning 1980
The Division of Water Stream Biomonitoring Unit (SBU) dataset contains the point sampling locations at which benthic macroinvertebrates, field chemistry, and at some locations,... -
Impaired Streams 2014
This dataset contains line work representing streams and rivers listed as "impaired" in Iowa's 2014 Section 305(b) Water Quality Assessment and the 303(d) Impaired Waters... -
i12 CalSIMII InflowData
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
i12 CalSIMII InflowData
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
Summer Low Flow Trend Indicator 1975-2015
Trend in annual minimum 30-day average summer flows, statewide, Oct 1975 through Oct 2015 -
Salt Water Limit
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It is... -
i12 CalSIMII InflowData Timeseries
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
River Scientist Regions
The Regions show who to contact for the physical assessment, restoration and protection of rivers and their corridors. The regional scientists provide the following services:... -
i12 CalSIMII InflowData Timeseries
This dataset represents locations of major inflows to the CA Central Valley. All but the two southernmost locations are associated with CalSim II. CalSim II is an operations... -
National Hydrography Dataset (NHD)
The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information...
E' possibile inoltre accedere al registro usando le API (vedi Documentazione API).