{"id":"72428cd0-99cb-4e65-a0e4-688cb35bd21b","created_at":"2025-09-04T14:35:25.477Z","updated_at":"2026-01-20T20:58:50.446Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"2833af66-59dd-4867-b8f5-3ba3cdb2152f","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-16T16:00:00.000Z","observed_at_local":"2016-07-16T12:00:00-04:00","notes":"Calcium: 34.3, Sample: B16-22108-3","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/165421","readings":[{"id":"0aa582b9-4cf5-468c-9098-8e064afc98e5","created_at":"2025-09-04T14:35:25.543Z","updated_at":"2025-09-04T14:35:25.543Z","parameter":"total_phosphorus","unit":"ppb","value":"4","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"59d7da2c-7ee3-4205-b7e5-3575cbdc891e","created_at":"2025-09-04T14:35:25.568Z","updated_at":"2025-09-04T14:35:25.568Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"340","equipment":"lab_unspecified","equipment_limit":null}]}