{"id":"5489fe91-3083-460d-839c-5fefe31acc01","created_at":"2025-09-04T14:22:25.951Z","updated_at":"2026-01-20T20:36:33.471Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"8e9b25e9-1e24-4c3a-a39d-08346fe56e1d","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2015-08-13T00:00:00.000Z","observed_at_local":"2015-08-12T20:00:00-04:00","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/159777","readings":[{"id":"03a855c3-1a49-47e4-ad49-2552b23bdd9f","created_at":"2025-09-04T14:22:26.031Z","updated_at":"2025-09-04T14:22:26.031Z","parameter":"total_phosphorus","unit":"ppb","value":"22","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"5371b4a6-9a8e-4dfa-8988-c4ef59711339","created_at":"2025-09-04T14:22:26.043Z","updated_at":"2025-09-04T14:22:26.043Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"360","equipment":"lab_unspecified","equipment_limit":null}]}