{"id":"5d572795-6646-4123-8007-b106db6b1fe3","created_at":"2025-09-04T19:19:53.083Z","updated_at":"2026-01-20T21:23:11.506Z","owner_id":"4523b067-1f47-40f7-9327-cfbdb8b12c8f","location_id":"41f4366a-43d3-4fab-99eb-cbf4a4a4c020","dataset_id":"7e457e96-fa9f-4fdc-ac15-8a24f50f93e0","form_id":"25b5c89f-ed8d-461a-a5e7-70b9af2d5ceb","observed_at":"2016-05-17T16:30:00.000Z","observed_at_local":"2016-05-17T12:30:00-04:00","notes":"Calcium: 31.1\r\nClear sunny day, 2-3 previous days wind 15 to 30 km/hr, 15 km/hr day before sampling. Air temp. ~15 °C.","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["secchi_depth","air_temperature","total_phosphorus","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/177799","readings":[{"id":"0470b105-f759-4883-aa86-1f78ed1044c7","created_at":"2025-09-04T19:19:53.122Z","updated_at":"2025-09-04T19:19:53.122Z","parameter":"secchi_depth","unit":"m","value":"bottom_visible","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"072e977e-679b-4777-a6f7-9b288741e8cf","created_at":"2025-09-04T19:19:53.127Z","updated_at":"2025-09-04T19:19:53.127Z","parameter":"air_temperature","unit":"deg_c","value":"15","equipment":"unspecified_air_temperature","equipment_limit":null},{"id":"1410d0f6-05e5-44b4-9f4d-f87e99b876aa","created_at":"2025-09-04T19:19:53.167Z","updated_at":"2025-09-04T19:19:53.167Z","parameter":"total_phosphorus","unit":"ppb","value":"8.8","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"87b69d91-6e1e-4a13-86b1-94d0ddb56442","created_at":"2025-09-04T19:19:53.189Z","updated_at":"2025-09-04T19:19:53.189Z","parameter":"water_temperature","unit":"deg_c","value":"13.5","equipment":"unspecified_water_temperature","equipment_limit":null}]}