{"id":"591e79b8-e6f6-4839-833b-d6686a8d1b54","anomaly_type":"contract_splitting","severity":"high","confidence_score":"0.9000","title":"C3 Mechanical: 2 contracts within 90 days totaling $303,580","description":"The vendor C3 Mechanical received 2 separate contracts within a 90-day window summing to $303,580. 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":"f7385d97-bde8-490b-9f69-c5cb3367affd","date":"2017-01-20","amount":37605.0,"department":"Unknown"},{"id":"0cdba5ac-5a6f-42c5-81e8-247e8b675aec","date":"2017-04-18","amount":265975.0,"department":"Unknown"}],"window_days":90,"content_hash":"d2a36ad3d293a0aff167d09740fe6c5d893eb29e51ea3904ad3206a21dc5a58f","combined_total":303580.0,"contract_count":2},"published":true,"created_at":"2026-05-27T12:10:40.858637Z","related_entity_type":null,"related_entity_id":null,"reviewed_by":null,"reviewed_at":null,"reviewer_notes":null,"source_document_ids":null}