{"id":"376fa579-5d7d-4d45-b336-0dbe6ac0d801","created_at":"2025-09-04T14:41:19.169Z","updated_at":"2026-01-20T21:03:06.597Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"0ba1c122-b479-4638-8515-beda4c76bcee","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2018-08-08T04:00:00.000Z","observed_at_local":"2018-08-08T00:00:00-04:00","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/166772","readings":[{"id":"d46d1723-96f2-4d60-aa62-f5a1b074a825","created_at":"2025-09-04T14:41:19.238Z","updated_at":"2025-09-04T14:41:19.238Z","parameter":"calcium","unit":"mg_l","value":"20.9","equipment":"unspecified_calcium","equipment_limit":null},{"id":"7c793a93-47fd-4bfc-b3ff-37e61b17293b","created_at":"2025-09-04T14:41:19.260Z","updated_at":"2025-09-04T14:41:19.260Z","parameter":"total_phosphorus","unit":"ppb","value":"0.01","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"897f451b-11bd-498f-a925-3d126c8af2bb","created_at":"2025-09-04T14:41:19.366Z","updated_at":"2025-09-04T14:41:19.366Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"0.4","equipment":"lab_unspecified","equipment_limit":null}]}