---
title: "Toxic release reporting facilities (EPA TRI)"
method: POST
path: "/api/locus_toxic_releases"
tags: ["environment", "hazardous-materials", "read-only", "free", "free"]
---

# Toxic release reporting facilities (EPA TRI)

`POST /api/locus_toxic_releases`

## Request

- Base URL: `https://api.locus.report`
- URL: `https://api.locus.report/api/locus_toxic_releases`
- Auth: none required

Returns EPA TRI reporting facilities in a county, with per-facility detail links, plus NRC and PHMSA verify links for spill or derailment event checks, for agents reviewing chemical-reporting facilities. National by address, place, point, or state plus county. Reports, not incidence, exposure, or a safety verdict.
Use this when you can call Locus free tools (REST tools/call or MCP).
Use locus-toxic-releases instead when your client can only call paid x402 routes; it returns the same records. Direct flat-body route for this one free resource; no API key, payment, or catalog wrapper. Return only the cited bounded evidence described here; this route never produces a paid brief or full report.

## Request body

- object
  - `address` string: Optional US street address or place; NC uses AddressNC first, other areas use the national geocoder fallback when latitude/longitude are not provided.
  - `latitude` number: Optional decimal latitude; provide with longitude to skip address geocoding.
  - `longitude` number: Optional decimal longitude; provide with latitude to skip address geocoding.
  - `place` string: Optional US street address or unambiguous place; used to derive state+county when explicit state+county are not provided.
  - `state` string: Optional two-letter state code, e.g. NC; provide with county to skip point/place resolution.
  - `county` string: Optional county name, e.g. Wake or Wake County; provide with state to skip point/place resolution.

## Response `200`

Free cited evidence response.

- object

## Other responses

- `400`: Invalid request body.
- `429`: Rate limited.

---

[API](https://skmtc.dev/locus/apis/locus-api.md) · [All operations](https://skmtc.dev/locus/apis/locus-api/llms.txt) · [OpenAPI document](https://skmtc.dev/locus/apis/locus-api/revisions/ba7786b74adb?raw)