{"id":"a4a36c9c-6b9c-4c69-97b8-f5abcbed7ab1","created_at":"2025-08-29T18:26:51.282Z","updated_at":"2026-01-20T20:12:19.568Z","owner_id":"76057c9e-9983-4d29-a29a-89f510e840a7","location_id":"b8cfde30-91bd-4b98-8320-55a325ab16de","dataset_id":"bb079255-ab45-4558-90c0-b3e2c12eb313","form_id":"8738c0d2-194e-4f39-852b-71a37c4d0c9b","observed_at":"2016-05-16T14:00:00.000Z","observed_at_local":"2016-05-16T10:00:00-04:00","notes":"Calcium(mg/L) 100","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","secchi_depth","total_phosphorus","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/114255","readings":[{"id":"c5f61649-2950-4bc8-9e10-b7e7b3e8514e","created_at":"2025-08-29T18:26:51.335Z","updated_at":"2025-08-29T18:26:51.335Z","parameter":"ph","unit":"std_units","value":"8.43","equipment":"ysi_multimeter_ph","equipment_limit":null},{"id":"f0dcce24-5f5a-4967-ab3e-7870ba205371","created_at":"2025-08-29T18:26:51.343Z","updated_at":"2025-08-29T18:26:51.343Z","parameter":"oxygen","unit":"mg_l","value":"9.88","equipment":"ysi_multimeter_do_mgl","equipment_limit":null},{"id":"75cd6948-5820-4a83-90f1-56d15f01b347","created_at":"2025-08-29T18:26:51.349Z","updated_at":"2025-08-29T18:26:51.349Z","parameter":"secchi_depth","unit":"m","value":"2.5","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"37286c14-7f09-4fbd-bb4b-878eb26f0f75","created_at":"2025-08-29T18:26:51.358Z","updated_at":"2025-08-29T18:26:51.358Z","parameter":"total_phosphorus","unit":null,"value":"11","equipment":null,"equipment_limit":null},{"id":"8eb1df0a-e678-4cec-acfe-6cb14701a138","created_at":"2025-08-29T18:26:51.370Z","updated_at":"2025-08-29T18:26:51.370Z","parameter":"water_temperature","unit":null,"value":"13.6","equipment":null,"equipment_limit":null}]}