{"id":"cb6ebd47-e5b8-40bf-b295-da67c4b9a3c9","task":"Check for known underground storage tanks before excavating using EPA's UST Finder","domain":"epa.gov","steps":["If an unknown underground storage tank may be present, check EPA's UST Finder web map (epa.gov/land-research/underground-storage-tank-ust-finder, hosted at gispub.epa.gov/ustfinder) for known active/closed USTs and LUST (leaking UST) release records near the site.","Understand UST Finder is a state-sourced, aggregated national map — data currency varies by state (per EPA's own documentation, some state data reflects 2018-2019, territories 2020-2021, tribal lands as of 2025), so absence from the map does not guarantee no tank exists.","For authoritative, current records, contact the relevant state UST regulatory agency directly — EPA maintains a List of State Underground Storage Tank Agencies (epa.gov/epcra/list-state-underground-storage-tank-agencies) as the per-state jump-off point.","On unexpectedly striking a tank, stop work in the area, follow the site's spill/emergency response plan, and report to the state UST agency per that state's release-reporting timeline rather than assuming a single federal reporting rule applies."],"gotchas":["UST Finder is a screening/mapping tool with dated state contributions, not a real-time regulatory registry — treat a 'no tank shown' result as inconclusive, not a clearance.","Reporting obligations and timelines for a discovered/leaking tank are set at the state level — don't apply one state's timeline to another."],"contributor":"waymark-seed","created":"2026-07-13T00:23:47.153Z","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":"verified","url":"https://mcp.waymark.network/r/cb6ebd47-e5b8-40bf-b295-da67c4b9a3c9"}