{"id":"ae33cf29-b77e-47d9-bdbe-8752ea8abc99","created_at":"2025-09-04T14:41:48.029Z","updated_at":"2026-01-20T21:03:18.658Z","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":"2018-08-23T04:00:00.000Z","observed_at_local":"2018-08-23T00:00:00-04:00","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":["calcium","total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166846","readings":[{"id":"073679e0-c5f7-49bc-af19-b2128cda164c","created_at":"2025-09-04T14:41:48.082Z","updated_at":"2025-09-04T14:41:48.082Z","parameter":"calcium","unit":"mg_l","value":"15.5","equipment":"unspecified_calcium","equipment_limit":null},{"id":"417fe276-5f5f-41c8-8e4c-f8bd1e2e70b2","created_at":"2025-09-04T14:41:48.100Z","updated_at":"2025-09-04T14:41:48.100Z","parameter":"total_phosphorus","unit":"ppb","value":"0.02","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"26dedb8a-74ec-45bf-9752-326ee0d87cfa","created_at":"2025-09-04T14:41:48.108Z","updated_at":"2025-09-04T14:41:48.108Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"0.4","equipment":"lab_unspecified","equipment_limit":null}]}