Environmental history: address-level proximity-ranked TRI/RCRA + county environmental composite (national)

EPA TRI, RCRA, SDWIS, EPA radon zone, and NRC/PHMSA verify links for an address or county, for buyer, owner and lender agents. radonHeadline plus addressProximity lead; county background may match all county properties. National by lat/lng or state and county; not incident confirmation or a safety verdict. Use this when you can call Locus free tools (REST tools/call or MCP). Use locus-environmental-history-lookup 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.

post/api/locus_environmental_history

Request

Base URL: https://api.locus.report
URL: https://api.locus.report/api/locus_environmental_history
Auth: none required

Request body

addressstring

Optional US street address; used to derive county when state+county or lat/lng are not provided.

latitudenumber

Optional decimal latitude; provide with longitude to derive county from the point.

longitudenumber

Optional decimal longitude; provide with latitude to derive county from the point.

statestring

Optional two-letter state code; provide with county to skip point resolution.

countystring

Optional county name, e.g. Wake; provide with state to skip point resolution.

radiusMetersinteger

Optional proximity radius in meters for the TRI/RCRA address ranking; default ~5000 (3.1 mi), clamped to ~24000 (15 mi).

Response

Free cited evidence response.

object required

Changes

No recorded changes to this operation across all 1 revision of this API.