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needed: oxygen's result of 12.19mg/L exceeds the normal range of 12.0mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","secchi_depth","conductivity","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166639","readings":[{"id":"0e93341f-2ce6-4515-baf0-bd985eecf0bb","created_at":"2025-09-04T14:40:38.165Z","updated_at":"2025-09-04T14:40:38.165Z","parameter":"ph","unit":"std_units","value":"7.96","equipment":"unspecified_ph","equipment_limit":null},{"id":"bb76280e-8973-47c7-bafb-fc6ead1a8310","created_at":"2025-09-04T14:40:38.181Z","updated_at":"2025-09-04T14:40:38.181Z","parameter":"oxygen","unit":"mg_l","value":"12.19","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"5f992dba-a611-4dbe-903d-ba710642fbbd","created_at":"2025-09-04T14:40:38.195Z","updated_at":"2025-09-04T14:40:38.195Z","parameter":"secchi_depth","unit":"m","value":"2.9","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"c5501dde-6130-4d70-b049-b38ca5b8bdc5","created_at":"2025-09-04T14:40:38.210Z","updated_at":"2025-09-04T14:40:38.210Z","parameter":"conductivity","unit":"us_cm","value":"161","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"2bff564b-8a0f-4acb-8cb5-e96b05ca031a","created_at":"2025-09-04T14:40:38.234Z","updated_at":"2025-09-04T14:40:38.234Z","parameter":"water_temperature","unit":"deg_c","value":"14.07","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"3982e881-8af6-4e37-b061-68efdfc6096c","created_at":"2025-09-04T14:40:38.220Z","updated_at":"2025-11-26T13:32:12.482Z","parameter":"oxygen","unit":"percent","value":"118.5","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"756955cf-d806-4bcb-9e53-7dec3533fa9c","created_at":"2025-09-04T14:39:24.524Z","updated_at":"2026-01-20T21:02:16.537Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"3672613b-54a6-4fdf-a15c-73c2a6dce5e9","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2017-06-27T18:17:00.000Z","observed_at_local":"2017-06-27T14:17:00-04:00","notes":"\"light 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12.0mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","secchi_depth","conductivity","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166497","readings":[{"id":"b71379ac-8d8c-4632-b9fb-776b1d7c22c9","created_at":"2025-09-04T14:39:24.580Z","updated_at":"2025-09-04T14:39:24.580Z","parameter":"ph","unit":"std_units","value":"8.3","equipment":"unspecified_ph","equipment_limit":null},{"id":"e9568922-8cc9-40a6-9e5d-8e6132d17ef9","created_at":"2025-09-04T14:39:24.604Z","updated_at":"2025-09-04T14:39:24.604Z","parameter":"oxygen","unit":"mg_l","value":"12.09","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"553936d8-70dc-4181-a918-fcee67fceaef","created_at":"2025-09-04T14:39:24.615Z","updated_at":"2025-09-04T14:39:24.615Z","parameter":"secchi_depth","unit":"m","value":"3.8","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"cb04e5b5-035a-420b-a55e-f17142226def","created_at":"2025-09-04T14:39:24.632Z","updated_at":"2025-09-04T14:39:24.632Z","parameter":"conductivity","unit":"us_cm","value":"158","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"5c57f2d5-3c8c-4a05-9018-39b3aae55916","created_at":"2025-09-04T14:39:24.672Z","updated_at":"2025-09-04T14:39:24.672Z","parameter":"water_temperature","unit":"deg_c","value":"21.92","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"a9dd7c3b-ffa3-48bf-a022-8d0063851218","created_at":"2025-09-04T14:39:24.653Z","updated_at":"2025-11-26T13:32:10.886Z","parameter":"oxygen","unit":"percent","value":"138.4","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"40b8d237-39ce-4262-96c2-29a21e15b345","created_at":"2025-09-04T14:38:42.302Z","updated_at":"2026-01-20T21:01:54.351Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"3672613b-54a6-4fdf-a15c-73c2a6dce5e9","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2017-05-15T14:13:00.000Z","observed_at_local":"2017-05-15T10:13:00-04:00","notes":"\"moderate 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