{"id":"28db17ce-62d6-434d-aafa-f5f76bb422bb","created_at":"2025-09-04T14:35:40.999Z","updated_at":"2026-01-20T20:58:57.697Z","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":"2016-08-03T16:00:00.000Z","observed_at_local":"2016-08-03T12:00:00-04:00","notes":"Calcium: 17.8, Sample: B16-22971-15","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/165464","readings":[{"id":"b880068a-e595-46d6-b2cc-5932d85f0f48","created_at":"2025-09-04T14:35:41.095Z","updated_at":"2025-09-04T14:35:41.095Z","parameter":"total_phosphorus","unit":"ppb","value":"8","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"dce161f9-51c6-4f86-84fc-52debf15c1db","created_at":"2025-09-04T14:35:41.157Z","updated_at":"2025-09-04T14:35:41.157Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"410","equipment":"lab_unspecified","equipment_limit":null}]}