io.github.cyanheads/epa-mcp-server

Search EPA civil and criminal enforcement cases by state, regulatory program, or date range. Returns case identifier, regulated facility name and Registry ID, programs involved, penalty assessed, settlement date, and case type. Designed for area-level violation discovery — for a single known facility's enforcement history use epa_get_facility instead. At least one of state or zip_code is required.

Query Toxic Release Inventory annual chemical release data for a specific facility. Returns per-chemical release records with chemical name, total release quantity, and reporting year. TRI data lags ~18 months — the most recent available year is typically 2 years prior to the current calendar year. Obtain facility_id (TRI facility ID) from epa_search_facilities. Use epa_search_tri_releases to identify top emitters across a region.

Search Superfund (CERCLA/SEMS) sites by location or NPL listing status. Returns site name, EPA site ID, NPL status (listed/not listed/proposed), cleanup status, coordinates, and county FIPS code. Accepts either state/city/ZIP or latitude+longitude+radius for proximity searches. Use for "are there Superfund sites near X" questions.

Search Toxic Release Inventory data across facilities in a state or county for a given reporting year. Returns facility name, TRI ID, chemical name, and release quantity. Use to identify top polluters in an area or build an environmental exposure profile. Use epa_get_tri_releases for detailed release records for a single facility. TRI data lags ~18 months from the current calendar year.

Retrieve a full compliance profile for a single EPA-regulated facility by EPA Registry ID. Returns facility metadata, per-program compliance status, inspection history, formal enforcement actions, penalty totals, and TRI release summary. Use epa_search_facilities to discover Registry IDs. For area-level enforcement discovery use epa_search_violations instead.

Search drinking water systems (SDWIS) by state or ZIP code. Returns system name, PWSID, population served, primary water source, and active violation status. Use to identify community water systems with current or recent compliance violations. At least one of state or zip_code is required.

Get EJScreen environmental-justice indicators for a point and surrounding buffer. Returns the 13 EJScreen environmental indicators (PM2.5, ozone, diesel particulate, NO2, lead paint, traffic proximity, Superfund/RMP/hazardous-waste/wastewater proximity, underground storage tanks, drinking-water non-compliance, and RSEI toxic air releases) and 6 demographic indicators (people of color, low income, limited English, less than high school, under 5, over 64), each with national and state percentiles plus EJ Index values, along with the Demographic Index and Supplemental Demographic Index. Data is EJScreen v2.2 (2022) served via the community-maintained EJAM API (api.ejanalysis.com, Public Environmental Data Partners), which rehosts EJScreen after EPA discontinued public access in 2025 — not a live EPA endpoint. Provide latitude, longitude, and a buffer distance (default 1 mile, max 15 miles). Points outside US coverage return a coverage note instead of indicators.

Get current AQI observations or forecasts for a location from the AirNow API. Returns per-pollutant AQI values (PM2.5, ozone, CO, SO2, NO2), AQI category (Good through Hazardous), reporting area name, and observation timestamp. Provide either zip_code or both latitude and longitude. Set mode to "forecast" and provide forecast_date for next-day projections. Data is preliminary — suitable for awareness and informational use, not regulatory decisions. Responses are cached for ~1 hour.

Search EPA-regulated facilities by location, industry program, or compliance status across all environmental programs (CAA, CWA, RCRA, TRI, SDWA). Returns facility name, EPA Registry ID, coordinates, county FIPS code, per-program registration flags, inspection counts, penalty totals, and TRI release totals. Registry IDs returned here feed epa_get_facility and epa_get_tri_releases. Supports proximity search via latitude + longitude + radius_miles. At least one geographic filter (zip_code, state, city, or a complete latitude+longitude+radius_miles triple) is required — unscoped searches time out.