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State
Citizen Statewide Lake Monitoring Assessment Program (CSLAP) Lakes
State of New York —
The dataset represents the lakes participating in the Citizen Statewide Lake Monitoring Assessment Program (CSLAP). CSLAP is a volunteer lake monitoring and education... -
State
MO_2016_Section_305b_Water_Quality_Report_Complete_Listing_of_Impaired_Rivers_and_Streams
State of Missouri —
This data set contains those Missouri waters which have been assessed as impaired in 2016, including waters on Missouri's EPA Approved 2016 Section 303(d) List, but... -
State
Combined Sewer Overflows (CSOs): Beginning 2013
State of New York —
The dataset represents the locations of combined sewer overflow (CSOs) outfall locations in NYS. It also includes overflow detection capabilities of CSO communities... -
State
Reported Sewer Overflows
State of Maryland —
NOTE: This dataset is no longer updated. Due to a change in databases, overflows after after January 31, 2023 are reported at... -
State
SWGIHubCorShp
State of Maryland —
Maryland's green infrastructure is a network of undeveloped lands that provide the bulk of the state's natural support system. These data map hub and corridor... -
State
NYSDEC_WaterbodyInventoryAndPriorityWaterbodiesListAdditionalShoreline2Segment_DataSet
State of New York —
The Waterbody Inventory/Priority Waterbodies List (WI/PWL) dataset is an inventory of the state's surface water quality. This dataset provides a summary of general... -
State
Rivers and Streams - Generalized
State of Maryland —
The digital segmented network based on watershed boundaries, ERF1-2, includes enhancements to the U.S. Environmental Protection Agency's River Reach File 1 (RF1)... -
State
MD Geological Survey Grabs
State of Maryland —
Compiled data from MGS sediment grab samples from 1984-2012 (listed in order of ascending FID #) 2007 - These samples were collected using a Van Veen grab sampler.... -
State
DNR Owned Lands and Conservation Easements
State of Maryland —
The Maryland Department of Natural Resources (DNR) manages over 446,000 acres of public lands and protected open space in the state. The DNR Lands data (part of... -
State
Phosphorus Sediment Buffer Priority
State of Maryland —
The Natural Filter Buffer Priorities for Water Quality (Phosphorus / Sediment) layers identify priority forest/grass buffer opportunities by subwatershed (MD HUC 8).... -
State
MO_2015_CWIS_Water_Quality_Standards
State of Missouri —
This feature class contains watersheds associated with Missouri's use designations for streams listed in Table F of the Water Quality Standards (WQS) rule published... -
State
NYSDEC_WaterbodyInventoryAndPriorityWaterbodiesListAdditionalShoreline1Segment_DataSet
State of New York —
The Waterbody Inventory/Priority Waterbodies List (WI/PWL) dataset is an inventory of the state's surface water quality. This dataset provides a summary of general... -
State
Municipal Stormwater Permit Outfall Data
State of Washington —
Special Condition S8.D of the 2007-2012 Phase I Municipal Stormwater Permit required permittees to collect and analyze data to evaluate pollutant loadings of... -
State
Nutrient Wetland Priority
State of Maryland —
The Natural Filter Wetland Priorities for Water Quality layers identify priority wetland restoration opportunities by subwatershed (MD HUC 8). The Natural Filter... -
State
DNR Owned Lands and Conservation Easements
State of Maryland —
The Maryland Department of Natural Resources (DNR) manages over 446,000 acres of public lands and protected open space in the state. The DNR Lands data (part of... -
State
Targeted Ecological Areas
State of Maryland —
Targeted Ecological Areas (TEAs) are lands and watersheds of high ecological value that have been identified as conservation priorities by the Maryland Department of... -
State
Blue Infrastructure Watersheds
State of Maryland —
A subset of watersheds created for the Blue Infrastructure Project (BI) based on the DNR 12 digit watershes as follows; This file (SWSHED12) is a statewide digital... -
State
Environmental Monitoring Results for Radioactivity: Water Samples
State of Connecticut —
Reporting units of sample results [where 1 picoCurie (pCi) = 1 trillionth (1E-12) Curie (Ci)]: • Water Samples are reported in pCi/L. - Data Quality Disclaimer: This... -
State
12 Digit Watersheds
State of Maryland —
This file (SWSHED12) is a statewide digital watershed file. It was created primarily for state and federal agency use. The watersheds define Strahler (Strahler 1952... -
State
12 Digit Watersheds
State of Maryland —
This file (SWSHED12) is a statewide digital watershed file. It was created primarily for state and federal agency use. The watersheds define Strahler (Strahler 1952...