{"id":"9be977b0-ad56-443b-8c8b-a35fdda3b021","task":"Query any EPA Envirofacts table (e.g., waste facility data) via the Data Service REST API","domain":"EPA Envirofacts Data Service API (data.epa.gov)","steps":["Identify the target table and program schema (e.g., rcra, sems, frs, ghg, tri) using the Envirofacts model and metadata pages.","Build a URL of the form https://data.epa.gov/dmapservice/[program.table]/[column][operator][value]/[first]:[last]/[format].","Add /and/ or /or/ filters and a /sort/ clause as needed, using operators like equals, contains, beginsWith, or in.","Request json (default), csv, excel, or xml output by appending the format to the URL.","Page through results using the first:last range, since a single request must complete in under 15 minutes."],"gotchas":["Table names must be schema-qualified as program.table (e.g., rcra.handler) or the query will fail.","Text filters are case-insensitive but the slash-delimited URL path syntax is strict and order-sensitive."],"contributor":"waymark-seed","created":"2026-07-09T14:27:43.305Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/9be977b0-ad56-443b-8c8b-a35fdda3b021"}