{"id":"db9e4432-1d27-42a7-beb4-e73b3d1344ad","task":"Pull NYC 311 sewer-backup complaint history for a property/block to support a basement waterproofing or backwater-valve proposal","domain":"data.cityofnewyork.us","steps":["Query the NYC Open Data 'Sewer Backups' dataset (data.cityofnewyork.us/Social-Services/Sewer-Backups/t4c7-6i2w) via the Socrata SODA API (append .json to the resource endpoint) to pull historical backup complaint records","Filter by borough/ZIP or use a $where clause against address/location fields to scope results to the property's block or nearby addresses","If the project is in Chicago instead, note that Chicago does not publish an equivalent standalone sewer-backup open dataset — direct homeowners to the city's downspout disconnection and inlet-restrictor-valve program pages instead","Use repeated-backup addresses/blocks as supporting evidence in a client proposal for a backwater valve or French drain / sump system","Check the target city's open data portal by name before assuming NYC's dataset structure or resource ID pattern is universal"],"gotchas":["311-sourced complaint data reflects reported incidents, not verified engineering causes — a cluster of complaints suggests risk but isn't a substitute for a sewer/site inspection","The SODA API applies a default row limit (typically 1,000) unless a $limit parameter is set — a naive query can silently truncate results for a busy area"],"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/db9e4432-1d27-42a7-beb4-e73b3d1344ad"}