{"id":"c4b31ade-5c33-4498-8edd-585a927f6a43","created_at":"2025-09-04T14:41:47.472Z","updated_at":"2026-01-20T21:03:18.147Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"2e1495f7-0b39-4ed1-a9af-42681527bbfc","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2018-05-15T04:00:00.000Z","observed_at_local":"2018-05-15T00:00:00-04:00","notes":null,"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/166843","readings":[{"id":"874b8e42-5ab2-4b7e-8513-56a97034f800","created_at":"2025-09-04T14:41:47.560Z","updated_at":"2025-09-04T14:41:47.560Z","parameter":"total_phosphorus","unit":"ppb","value":"0.01","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"ce87e6b4-38b7-4d5d-9800-57c6ff1641b1","created_at":"2025-09-04T14:41:47.574Z","updated_at":"2025-09-04T14:41:47.574Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"0.23","equipment":"lab_unspecified","equipment_limit":null}]}