{"id":"585856a0-a8e5-42cf-8f6b-29326b7ef21b","created_at":"2025-08-19T22:03:04.238Z","updated_at":"2026-01-12T18:26:32.801Z","owner_id":"3374086e-2aa9-41b8-ac30-ae38ef75e4ce","location_id":"03f8fcba-22f8-406c-9957-17a6ef792628","dataset_id":"7698d945-ce28-4073-837f-208904be0ba7","form_id":"b625c94a-9dc1-4e78-9a71-88480f4ce4c4","observed_at":"2019-05-04T16:00:00.000Z","observed_at_local":"2019-05-04T12:00:00-04:00","notes":"Total Phosphorous is the mean of 6 measurements (3 measurements x 2 bottles, at the same location):\r\n- Bottle A: 8, 9, 13.\r\n- Bottle B: 10, 10, 11.\r\n\r\nLaboratory: Caduceon Labs (Ottawa)","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["phosphate_phosphorus"],"photos":[],"permalink":"https://data.waterrangers.com/observations/74250","readings":[{"id":"cdb28efc-8c8f-4c19-9715-6ace55c6911a","created_at":"2025-08-19T22:03:04.320Z","updated_at":"2025-08-19T22:03:04.320Z","parameter":"phosphate_phosphorus","sub_question":null,"qualitative":false,"unit":"ug_l","value":"10.2","equipment":"lab_total_phosphorus_persulfate","equipment_limit":null}]}