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37.3\r\nSample: B16-23117-12","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/165441","readings":[{"id":"ac7f0294-75bf-4836-ae30-87836e7f2093","created_at":"2025-09-04T14:35:33.167Z","updated_at":"2025-09-04T14:35:33.167Z","parameter":"total_phosphorus","unit":"ppb","value":"14","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"fcc205af-1207-47df-aabc-72d47d3dae26","created_at":"2025-09-04T14:35:33.302Z","updated_at":"2025-09-04T14:35:33.302Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"550","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"4d45bdf2-d211-4803-8329-82ffafb31f2e","created_at":"2025-09-04T14:35:32.975Z","updated_at":"2026-01-20T20:58:53.643Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"e28e69e7-894f-4dd7-bde0-577f0c4146a1","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-08T14:31:00.000Z","observed_at_local":"2016-07-08T10:31:00-04:00","notes":"Sample: B16-19752-5","checked":"review_needed","qa_notes":"Review needed: Based on previous readings, oxygen's result of 5.7mg/L is outside the expected range of 6.33-12.95mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["oxygen","total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/165440","readings":[{"id":"f2af2703-85b3-48c0-b3f4-8085b37f34f2","created_at":"2025-09-04T14:35:33.024Z","updated_at":"2025-09-04T14:35:33.024Z","parameter":"oxygen","unit":"mg_l","value":"5.7","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"022105a1-16c1-4353-bd63-016755e970b2","created_at":"2025-09-04T14:35:33.035Z","updated_at":"2025-09-04T14:35:33.035Z","parameter":"total_phosphorus","unit":"ppb","value":"8","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"f8e56cce-a841-4ff5-bb0d-10fb270d3900","created_at":"2025-09-04T14:35:33.040Z","updated_at":"2025-09-04T14:35:33.040Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"360","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"8091da95-81ec-49cd-b519-910c80db94f0","created_at":"2025-09-04T14:35:32.904Z","updated_at":"2026-01-20T20:58:53.370Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"e28e69e7-894f-4dd7-bde0-577f0c4146a1","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-05-26T16:00:00.000Z","observed_at_local":"2016-05-26T12:00:00-04:00","notes":"Sample: 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