{"id":"a329c144-759c-49e6-ac4c-dc3eb8a4bb50","anomaly_type":"contract_splitting","severity":"high","confidence_score":"0.9000","title":"C3 Mechanical: 2 contracts within 90 days totaling $412,564","description":"The vendor C3 Mechanical received 2 separate contracts within a 90-day window summing to $412,564. When the combined value crosses a procurement-approval threshold but each individual award stays below it, the pattern is classically called 'contract splitting' and warrants further review against the procurement code and any sole-source justifications. The pattern can also reflect legitimate phased work or multiple unrelated services with the same vendor. Tier 2: vendor-named observation, no individual characterization.","fiscal_year":null,"review_status":"auto","review_tier":2,"evidence":{"vendor":"C3 Mechanical","contracts":[{"id":"d1989e12-6011-46b1-8748-0741f7573015","date":"2020-04-10","amount":189500.0,"department":"Unknown"},{"id":"67ad2add-df20-4d23-a7a6-c8ff8452c684","date":"2020-05-06","amount":223064.0,"department":"Unknown"}],"window_days":90,"content_hash":"3b2edb67b1b574eb75a1a5a68244ca41936033a05386337ef72a55f4d4d9635c","combined_total":412564.0,"contract_count":2},"published":true,"created_at":"2026-05-27T12:10:40.873485Z","related_entity_type":null,"related_entity_id":null,"reviewed_by":null,"reviewed_at":null,"reviewer_notes":null,"source_document_ids":null}