{"id":"384a9320-7a63-4373-97d1-f119306fd4dd","anomaly_type":"contract_splitting","severity":"medium","confidence_score":"0.9000","title":"Columbia Gas: 2 contracts within 90 days totaling $156,365","description":"The vendor Columbia Gas received 2 separate contracts within a 90-day window summing to $156,365. 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":"Columbia Gas","contracts":[{"id":"eb21c5fd-3f12-4e8b-9b24-5394bd9b958b","date":"2017-03-09","amount":120311.0,"department":"Unknown"},{"id":"dd28765a-39de-4045-aa77-575ff5960890","date":"2017-04-24","amount":36054.03,"department":"Unknown"}],"window_days":90,"content_hash":"9bc4c316ce641b2a2250993a7dfa46cca4ca05084214bc6be14593d4d88dcd6b","combined_total":156365.03,"contract_count":2},"published":true,"created_at":"2026-05-27T12:10:40.990373Z","related_entity_type":null,"related_entity_id":null,"reviewed_by":null,"reviewed_at":null,"reviewer_notes":null,"source_document_ids":null}