Found 12 datasets matching filters.
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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...
Search relevance: 1.00 | Views last month: 69 | Published on: 2025-07-31 -
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: 39 | Published on: 2025-07-31 -
A database where EPA has compiled data on public drinking water systems and whether they have certain drinking water violations. This data is collected by the states and given to the EPA. This...
Search relevance: 1.00 | Views last month: 31 | Published on: 2025-08-02 -
The third Unregulated Contaminant Monitoring Rule (UCMR 3), conducted under EPA oversight, was published in the Federal Register on May 2, 2012. UCMR 3 requires monitoring for 30 contaminants: 28...
Search relevance: 1.00 | Views last month: 7 | Published on: 2025-07-31 -
The Safe Drinking Water Act (SDWA) requires EPA to review each National Primary Drinking Water Regulation (NPDWR) at least once every six years and revise them, if appropriate. The purpose of the...
Search relevance: 1.00 | Views last month: 4 | Published on: 2025-07-31 -
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 in public water...
Search relevance: 1.00 | Views last month: 3 | Published on: 2025-07-31 -
This data includes information on Arsenic violations in the US, including time patterns and spatial patterns in Arsenic violations, and people served by systems in violation. Most of the data is...
Search relevance: 1.00 | Views last month: 3 | Published on: 2025-08-02 -
This dataset shows the concentration of cyanobacteria cells/ml in fresh water bodies and estuaries of the Ohio and Florida derived from 300x300 meter MEdium Resolution Imaging Spectrometer (MERIS)...
Search relevance: 1.00 | Views last month: 3 | Published on: 2025-08-02 -
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...
Search relevance: 1.00 | Views last month: 3 | Published on: 2025-07-31 -
This data layer is an element of the Oregon GIS Framework. This map includes Oregon Department of Environmental Quality (DEQ) and Oregon Department of Human Services’ (DHS) Drinking Water Program...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27 -
The Drinking Water Mapping Application (DWMA) is a web-based geographic information system (GIS) that enhances the capabilities to identify major contaminant risks to public drinking water...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-27 -
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 in public water...
Search relevance: 1.00 | Views last month: 0 | Published on: 2025-07-31
