{"id":"dc6543d0-644d-46e4-8c13-61355f846e2c","created_at":"2025-09-04T14:38:16.012Z","updated_at":"2026-01-20T21:01:29.730Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"daa337c5-891e-4f13-8ab7-358f7553b085","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-08-19T16:00:00.000Z","observed_at_local":"2016-08-19T12:00:00-04:00","notes":"Calcium: 19.1\r\nSample: B16-24787-1","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166275","readings":[{"id":"f41dcaf9-8044-42b3-9b65-29b415f6c75f","created_at":"2025-09-04T14:38:16.136Z","updated_at":"2025-09-04T14:38:16.136Z","parameter":"total_phosphorus","unit":"ppb","value":"14","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"70ad815d-566b-45bf-b28f-32579ccefd36","created_at":"2025-09-04T14:38:16.144Z","updated_at":"2025-09-04T14:38:16.144Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"390","equipment":"lab_unspecified","equipment_limit":null}]}