{"id":"b3a96abd-8671-401c-a1ac-e54603a06bb3","created_at":"2025-09-04T14:34:52.565Z","updated_at":"2026-01-20T20:58:20.125Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"c4effd59-b233-43dc-b3fa-ede043bb705b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-28T16:00:00.000Z","observed_at_local":"2016-07-28T12:00:00-04:00","notes":"Calcium: 29\r\nSample: B16-22308-1","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/165248","readings":[{"id":"589001e1-ec4c-4c61-97a5-d35b4b0ee946","created_at":"2025-09-04T14:34:52.611Z","updated_at":"2025-09-04T14:34:52.611Z","parameter":"total_phosphorus","unit":"ppb","value":"9","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"62e8ccac-c614-4aee-bb47-ab4895bbe65b","created_at":"2025-09-04T14:34:52.660Z","updated_at":"2025-09-04T14:34:52.660Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"390","equipment":"lab_unspecified","equipment_limit":null}]}