{"id":"af081811-c875-4fcd-b050-3feaf9675e77","anomaly_type":"contract_splitting","severity":"high","confidence_score":"0.9000","title":"HDR Engineering: 2 contracts within 90 days totaling $842,173","description":"The vendor HDR Engineering received 2 separate contracts within a 90-day window summing to $842,173. 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":"HDR Engineering","contracts":[{"id":"0fd1fd64-d411-4288-a8a0-26aaf6cc1925","date":"2025-05-16","amount":517248.0,"department":"Unknown"},{"id":"5e11c979-2090-43f7-adbc-8a4aa4fd7b3b","date":"2025-05-19","amount":324925.0,"department":"Unknown"}],"window_days":90,"content_hash":"ce9531011e3257b78d92010330311a805deb7423eb7a3348f6ab4aa478c6860d","combined_total":842173.0,"contract_count":2},"published":true,"created_at":"2026-05-27T12:10:41.279761Z","related_entity_type":null,"related_entity_id":null,"reviewed_by":null,"reviewed_at":null,"reviewer_notes":null,"source_document_ids":null}