{"id":"1ec4ad54-8e2e-4725-af7c-d11d1a19e836","created_at":"2025-09-04T14:38:09.752Z","updated_at":"2026-01-20T21:01:26.812Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"0abcb704-6f5b-43ae-87a0-29f9f6ed0e20","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-08-09T16:00:00.000Z","observed_at_local":"2016-08-09T12:00:00-04:00","notes":"Calcium: 26.2\r\nSample: B16-23594-1","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/166257","readings":[{"id":"1fa1226d-0adf-48dd-8af0-36af8b7669f8","created_at":"2025-09-04T14:38:09.820Z","updated_at":"2025-09-04T14:38:09.820Z","parameter":"total_phosphorus","unit":"ppb","value":"15","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"467ebbc8-6218-455c-bad6-7fcbafb0079d","created_at":"2025-09-04T14:38:09.837Z","updated_at":"2025-09-04T14:38:09.837Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"470","equipment":"lab_unspecified","equipment_limit":null}]}