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12.0mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["oxygen","ph","secchi_depth","conductivity","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166377","readings":[{"id":"cda36585-179a-42cf-b646-56584ffb7f0f","created_at":"2025-09-04T14:38:37.900Z","updated_at":"2025-09-04T14:38:37.900Z","parameter":"ph","unit":"std_units","value":"7.69","equipment":"unspecified_ph","equipment_limit":null},{"id":"357f8a65-7b08-4f3e-a3a9-130db27a749d","created_at":"2025-09-04T14:38:37.908Z","updated_at":"2025-09-04T14:38:37.908Z","parameter":"oxygen","unit":"mg_l","value":"12.88","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"3a79968e-80f8-4898-853c-80d9c9e05d60","created_at":"2025-09-04T14:38:37.919Z","updated_at":"2025-09-04T14:38:37.919Z","parameter":"secchi_depth","unit":"m","value":"4.25","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"d1cd6dc7-9eeb-488b-a216-0d8617730bdb","created_at":"2025-09-04T14:38:37.929Z","updated_at":"2025-09-04T14:38:37.929Z","parameter":"conductivity","unit":"us_cm","value":"132","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"3bf481eb-9fe4-4d12-8737-aebfff78d683","created_at":"2025-09-04T14:38:37.971Z","updated_at":"2025-09-04T14:38:37.971Z","parameter":"water_temperature","unit":"deg_c","value":"8.52","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"cd517146-356e-42d8-b4cc-7bf98a951007","created_at":"2025-09-04T14:38:37.951Z","updated_at":"2025-11-26T13:32:09.662Z","parameter":"oxygen","unit":"percent","value":"110.4","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"8cf8e109-7766-41c1-8f36-c941b76b9990","created_at":"2025-09-04T14:38:16.164Z","updated_at":"2026-01-20T21:01:29.899Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"daa337c5-891e-4f13-8ab7-358f7553b085","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-10-18T16:00:00.000Z","observed_at_local":"2016-10-18T12:00:00-04:00","notes":"Sample: 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19.1\r\nSample: 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