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Document ID us-dwmapswdl-2026-05-07 Title Drinking Water Mapping Application to Protect Source Waters (DWMAPS) Data Layers URL https://www.epa.gov/sourcewaterprotection/drinking-water-mapping-application-protect-source-waters-dwmaps-data-layers Jurisdiction /us Subdomain(s) none Language Status completed Analyzed at 2026-05-12 04:39:32.645776+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (0)

No qualitative requirements.

P Quantitative Requirements (0)

No quantitative requirements.

D Definitions (47)

Req ID Category Name Context Confidence
#D001aquiferAn aquifer is an underground body of rock that contains and can transmit groundwater.high
#D002SSASole Source Aquiferhigh
#D003NLCDNational Land Cover Databasehigh
#D004MRLCMulti-Resolution Land Characteristicshigh
#D005PAD-USProtected Areas Database of the United Stateshigh
#D006NPDESNational Pollutant Discharge Elimination Systemhigh
#D007RADReach Address Databasehigh
#D008WATERSWatershed Assessment, Tracking & Environmental Results Systemhigh
#D009FMCSAFederal Motor Carrier Safety Administrationhigh
#D010NTADNational Transportation Atlas Databasehigh
#D011GRTSGrant Reporting and Tracking systemhigh
#D012TMDLTotal Maximum Daily Loadshigh
#D013WBDWatershed Boundaries Datasethigh
#D014NHDNational Hydrography Datasethigh
#D015SWCSource Water Collaborativeshigh
#D016SSASole Source Aquiferhigh
#D017AquiferAn aquifer is an underground body of rock that contains and can transmit groundwater.high
#D018NLCDNational Land Cover Databasehigh
#D019MRLCMulti-Resolution Land Characteristicshigh
#D020PAD-USProtected Areas Database of the United Stateshigh
#D021NPDESNational Pollutant Discharge Elimination Systemhigh
#D022RADReach Address Databasehigh
#D023WATERSWatershed Assessment, Tracking & Environmental Results Systemhigh
#D024FRSFacility Registry Servicehigh
#D025FMCSAFederal Motor Carrier Safety Administrationhigh
#D026NTADNational Transportation Atlas Databasehigh
#D027GRTSGrant Reporting and Tracking systemhigh
#D028TMDLTotal Maximum Daily Loadhigh
#D029WBDWatershed Boundaries Datasethigh
#D030NHDNational Hydrography Datasethigh
#D031DWMAPSDrinking Water Mapping Application to Protect Source Watershigh
#D032USGSUnited States Geological Surveyhigh
#D033source water collaborativeslocal, state, and watershed-based partnerships working to protect sources of drinking waterhigh
#D034SDWASafe Drinking Water Acthigh
#D035NDWACNational Drinking Water Advisory Councilhigh
#D036MS4municipal separate storm sewer systemshigh
#D037SWMPstormwater management programhigh
#D038BMPsbest management practiceshigh
#D039SWPPPStormwater Pollution Prevention Planhigh
#D040illicit discharge"...any discharge to an MS4 that is not composed entirely of stormwater..." with some exceptions. These exceptions include discharges from NPDES-permitted industrial sources and discharges from fire-fighting activities.high
#D041IDDEIllicit Discharge Detection and Eliminationhigh
#D042CMBMChemical Mass Balance Modelhigh
#D043LIDlow impact developmenthigh
#D044Green Infrastructurepractices that use vegetation, soils, and natural processes to manage water and create healthier urban environments.high
#D045NPSNonpoint Sourcehigh
#D046TMDLTotal Maximum Daily Loadhigh
#D047NPDESNational Pollutant Discharge Elimination Systemhigh