{"id":"ac8e54fc-208a-47a3-a31b-e023e92782f5","created_at":"2025-09-04T14:35:14.753Z","updated_at":"2026-01-20T20:58:39.924Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"a0b61a70-4f9d-4255-9cdc-16e359f70eda","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-25T16:00:00.000Z","observed_at_local":"2016-07-25T12:00:00-04:00","notes":"Calcium: 29.1, Sample: B16-21898-3","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/165361","readings":[{"id":"f7c54ef2-c285-4675-9766-4c2d2e9d6d7d","created_at":"2025-09-04T14:35:14.818Z","updated_at":"2025-09-04T14:35:14.818Z","parameter":"total_phosphorus","unit":"ppb","value":"9","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"9c7d73cd-e773-4677-9877-97d565a7a67c","created_at":"2025-09-04T14:35:14.825Z","updated_at":"2025-09-04T14:35:14.825Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"480","equipment":"lab_unspecified","equipment_limit":null}]}