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Chemical facility Risk Management Plans (RMP)
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2026-10-15
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AirNow API (real-time AQI and forecasts)
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CalEPA Urban Heat Island Index
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Last updated2015
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EPA AirData Pre-Generated Files (AQS)
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SDWIS drinking water systems and violations (Envirofacts)
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Envirofacts Data Service API (SDWIS, TRI, RCRAInfo, SEMS tables)
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ECHO Wastewater / Stormwater / Biosolids Facility Search (CWA NPDES)
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UCMR occurrence data (UCMR 1-5, incl. PFAS and lithium in UCMR 5)
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Service Line Inventory dashboard (lead, galvanized, unknown lines)
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Water Quality Portal (USGS NWIS + EPA WQX/STORET + USDA STEWARDS)
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ATTAINS impaired waters (Clean Water Act assessments)
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EPA AQS Data API (validated air quality)
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TRI Basic Plus Data Files
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Superfund NPL and SAA site search
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Brownfields - Cleanups in My Community (ACRES) data
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Greenhouse Gas Reporting Program (GHGRP) data sets and FLIGHT
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EJScreen (status: removed by EPA)
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EPA ECHO Safe Drinking Water Act (SDWA) national dataset
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EPA ECHO ICIS-NPDES discharge permits and effluent violations
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Ohio EPA Drinking Water Watch / Drinking Water Viewer
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Illinois Drinking Water Watch
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EPA SDWIS Federal Reports (public water systems and violations)
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