{"id":"002c54bd-88f8-42ef-bf7e-c8f46926e419","created_at":"2025-09-04T14:34:55.619Z","updated_at":"2026-01-20T20:58:22.875Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-28T16:00:00.000Z","observed_at_local":"2016-07-28T12:00:00-04:00","notes":"Calcium: 16.2\r\nSample: B16-22308-8","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/165264","readings":[{"id":"3d5e5b52-e923-4d9c-9451-d37a4ff569ae","created_at":"2025-09-04T14:34:55.680Z","updated_at":"2025-09-04T14:34:55.680Z","parameter":"total_phosphorus","unit":"ppb","value":"9","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"e0c01efe-c727-49a7-9caa-fdae4ef15d9f","created_at":"2025-09-04T14:34:55.690Z","updated_at":"2025-09-04T14:34:55.690Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"370","equipment":"lab_unspecified","equipment_limit":null}]}