Datasets

• Clean Watersheds Needs Survey (CWNS) Reports to Congress

  America's capital investment needs are reported periodically to Congress. The information collected by the Clean Watersheds Needs Survey (CWNS) is used strictly to generate a...

• National Recommended Water Quality Criteria

  The National Recommended Water Quality Criteria is a compilation of national recommended water quality criteria for the protection of aquatic life and human health in surface...

• National Listing of Fish Advisories

  The National Listing of Fish Advisories (NLFA) is an online database that includes available information describing state-, tribal-, and federally-issued fish consumption...

• Watershed Assessment, Tracking & Environmental ResultS (WATERS)

  The Watershed Assessment, Tracking & Environmental Results (WATERS) is an integrated information system for the nation's surface waters connecting Office of Water databases...

• Safe Drinking Water Information System - State System (SDWIS/State)

  SDWIS/State is a data system that EPA is developing for states that will improve the quality of drinking water information.

• Grants Reporting and Tracking System (GRTS)

  The Grants Reporting and Tracking System (GRTS) is the primary tool for management and oversight of EPA's Nonpoint Source (NPS) Pollution Control Program. GRTS pulls grant...

• National Contaminant Occurrence Database (NCOD)

  NCOD is a repository of drinking water quality data to be made available to EPA decision makers and the public.

• Water Quality attainment Information from Clean Water Act Statewide Statistical Surveys

  Designated uses assessed by statewide statistical surveys and their state and national attainment categories. Statewide statistical surveys are water quality assessments...

• Wadeable Streams Assessment Data

  The Wadeable Streams Assessment (WSA) is a first-ever statistically-valid survey of the biological condition of small streams throughout the U.S. EPA worked with the states to...

• National Lakes Assessment Data

  The National Lakes Assessment (NLA) is a statistical survey of the condition of our nation's lakes, ponds, and reservoirs. It is designed to provide information on the extent of...

• Estimated Total Nitrogen and Total Phosphorus Loads and Yields Generated within States

  Estimated state-wide total nitrogen (TN) and total phosphorus (TP) loads and yields, as predicted by the 2012 regional USGS SPARROW models.Excess nitrogen and phosphorus loading...

• Estimated Animal Agriculture Nitrogen and Phosphorus from Manure

  Animal agriculture manure is a primary source of nitrogen and phosphorus to surface and groundwater. Manure runoff from cropland and pastures or discharging animal feeding...

• Commercial Phosphorus Fertilizer Purchased

  Amounts of fertilizer P2O5 purchased by states in individual years 2003, 2005, 2007, 2009 and 2011, and the % change in average amounts purchased per year from 2002-2006 to...

• Commercial Nitrogen Fertilizer Purchased

  Amounts of fertilizer nitrogen (N) purchased by states in individual years 2003, 2005, 2007, 2009 and 2011, and the % change in average amounts purchased per year from 2002-2006...

• National Coastal Condition Assessment (NCCA)

  During the summer of 2010, state and EPA crews conducted field sampling for the fifth National Coastal Condition Assessment (NCCA). The assessment is in the data analysis and...

• Human Health Benchmarks for Pesticides

  Advanced testing methods now allow pesticides to be detected in water at very low levels. These small amounts of pesticides detected in drinking water or source water for...

• Beach Advisory and Closing Online Notification (BEACON) system

  Beach Advisory and Closing Online Notification system (BEACON) is a colletion of state and local data reported to EPA about beach closings and advisories. BEACON is the public-...

• 2013 EPA Vessels General Permit (VGP)

  Information for any vessel that submitted a Notice of Intent (NOI), Notice of Termination (NOT), or annual report under EPA's 2013 Vessel General Permit (VGP). Search results...

• Contaminant Candidate List 1

  CCL 1 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or anticipated to occur...

• Contaminant Candidate List 2

  CCL 2 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or anticipated to occur...