Search datasets
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SDWIS/FED is EPA's national regulatory compliance database for the drinking water program. It includes information on the nation's 160,000 public water systems and violations of drinking water...
Search relevance: 1.00 | Views last month: 35 | Catalog Last Checked: September 10, 2026 at 07:11 PM -
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 information from EPA's...
Search relevance: 1.00 | Views last month: 25 | Catalog Last Checked: September 10, 2026 at 07:11 PM -
National Primary Drinking Water Regulations (NPDWRs or primary standards) are legally enforceable standards that apply to public water systems. Primary standards protect public health by limiting...
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The High Production Volume Information System (HPVIS) provides access to select health and environmental effect information on chemicals that are manufactured in exceptionally large amounts.
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The Toxicity Reference Database (ToxRefDB) contains approximately 30 years and $2 billion worth of animal studies. ToxRefDB allows scientists and the interested public to search and download...
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CCL 3 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 in public water...
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Autism and green space metrics in California elementary school districts. This dataset is associated with the following publication: Wu, J., and L. Jackson. Inverse Relationship Between Urban...
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The Drinking Water Treatability Database (TDB) presents referenced information on the control of contaminants in drinking water. It allows drinking water utilities, first responders to spills or...
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This site includes all of the ozone-depleting substances (ODS) recognized by the Montreal Protocol. The data include ozone depletion potentials (ODP), global warming potentials (GWP), and CAS...
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The Environmental Quality Index (EQI) accounts for the multiple domains of the environment with which humans interact. These domains include chemical, natural, built, and sociodemographic...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: September 10, 2026 at 07:02 PM -
This dataset provides the water-quality results for organic and inorganic concentrations analyzed from samples collected at domestic and commercial tapwater faucets and one spring, sourced in...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 09:04 PM -
This site includes the global warming potential (GWP) of ozone depleting substance substitutes, their atmospheric lifetime, and uses.
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An introduction to the 2022 Indicators of Climate Change in California Report. The Indicators of Climate Change in California report documents observed changes in the state’s climate and its...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 06:16 PM -
Section 8(e) of the Toxic Substances Control Act (TSCA) requires U.S. chemical manufacturers, importers, processors and distributors to notify EPA within 30 calendar days of new, unpublished...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 03, 2026 at 04:44 AM -
Includes accelerometer data using an ActiGraph to assess usual sedentary, moderate, vigorous, and very vigorous activity at baseline, 6 weeks, and 10 weeks. Includes relative reinforcing value...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 07:51 PM -
This data set contains dose-response data for perchlorate exposure in multiple species. These data were assembled from peer-reviewed studies. Species included in this dataset are: rats (Rattus...
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This dataset contains the title and abstract level and full text screening results of a systematic literature search for the disinfection byproduct bromodichloromethane up to June 2025. This...
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The Consolidated Human Activity Database (CHAD) contains data obtained from human activity studies that were collected at city, state, and national levels. CHAD is intended to be an input file for...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 07:10 PM -
This dataset describes the identification of phytoplankton to the lowest taxonomic level (typically species), as well as abundance (density) and biovolume from grab samples collected from Lake...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 09:17 PM -
This dataset includes volcanic ash leachate, catchment and rainwater chemistry for samples collected between May-June 2018.
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 09:54 PM
