{"schema_id":"hc.source_inventory.v1","schema_version":"1.1.0","data_snapshot_id":"public-data.source_lineage.2026-07-17","provenance":{"provenance_id":"prov:public-data.source_lineage","data_snapshot_id":"public-data.source_lineage.2026-07-17","publication_date":"2026-07-17","retrieval_date":"2026-07-17","model_version":null,"license_note":"Metadata-only source inventory. Official links point to upstream publishers; governed raw rows are not mirrored by this record."},"access":{"visibility":"public","support_level":"permit|event|state|waterbody|coordinate","sensitivity":"low","training_eligibility":"benchmark_only","license_status":"public_source_reviewed"},"record":{"source_id":"epa.echo.npdes_sewer_overflow.current","source_name":"EPA ECHO NPDES current sewer overflow and bypass events","source_family":"environmental_permits","source_group":"context_adapter","source_tier":"staged_for_panel","source_status":"candidate","panel_status":"source_catalog_ready","authority":"US Environmental Protection Agency","official_url":"https://echo.epa.gov/files/echodownloads/current_sewer_overflow_and_collection_systems_tables.zip","official_urls":["https://echo.epa.gov/files/echodownloads/current_sewer_overflow_and_collection_systems_tables.zip"],"license_status":"public_source_reviewed","sensitivity":"low","geography":"US","resolution":"permit|event|state|waterbody|coordinate","cadence":"source_native","temporal_start":null,"temporal_end":"2026-07-18","format":"zip|csv|json","raw_retention":"metadata_public_raw_private","normalization":["canonical_source_snapshot","normalized_event_row_surface"],"panels":["context.epa_echo_npdes_sewer_overflows"],"targets":["sewer_overflow_event","discharge_volume_gallons","event_type","receiving_water","wet_weather"],"public_readiness":"metadata_public_normalized_rows","training_eligibility":"benchmark_only","provenance_id":"prov:epa.echo.npdes_sewer_overflow.current","evidence_file":"docs/prediction_markets/permit-zoning-data-readiness.md","notes":"Normalized public row endpoint: /api/v1/data/environmental/epa-echo/npdes-sewer-overflows; latest manifest: r2://properlytic-raw-data/environmental_permits/epa_echo/npdes_sewer_overflow_current_normalized/v1/latest.json; ICIS-NPDES outfalls and non-effluent violations are exposed separately, while limits, effluent violations, detailed permit/facility rows, and detailed enforcement rows are not normalized yet; all-version eRule history is exposed separately through epa.echo.npdes_sewer_overflow.history.","payload_availability":{"level":"queryable_rows","metadata_available":true,"sample_rows":false,"queryable_rows":true,"bulk_download":false,"runtime_verification":"contract_declared","reason":"Normalized public rows are available through an asset-specific endpoint."},"access":{"visibility":"public","support_level":"permit|event|state|waterbody|coordinate","sensitivity":"low","training_eligibility":"benchmark_only","license_status":"public_source_reviewed"},"_links":{"self":"/api/v1/data/sources/epa.echo.npdes_sewer_overflow.current","collection":"/api/v1/data/sources","official":"https://echo.epa.gov/files/echodownloads/current_sewer_overflow_and_collection_systems_tables.zip","lineage":"/api/v1/data/panels/context.epa_echo_npdes_sewer_overflows/lineage?source_id=epa.echo.npdes_sewer_overflow.current"}},"_links":{"self":"/api/v1/data/sources/epa.echo.npdes_sewer_overflow.current","sources":"/api/v1/data/sources","coverage":"/api/v1/data/coverage","coverage_sources":"/api/v1/data/coverage/sources?source_id=epa.echo.npdes_sewer_overflow.current","coverage_map":"/api/v1/data/coverage/map","docs":"/api-docs"}}