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7.03-12.27mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["oxygen","ph","secchi_depth","conductivity","air_temperature","water_temperature"],"photos":[],"readings":[{"id":"7034488c-ad1a-4f2a-b826-a4239041dbf3","created_at":"2025-09-04T14:40:22.451Z","updated_at":"2025-09-04T14:40:22.451Z","parameter":"ph","unit":"std_units","value":"8.41","equipment":"unspecified_ph","equipment_limit":null},{"id":"3955d9a4-737f-4484-a844-23e94b8d7071","created_at":"2025-09-04T14:40:22.469Z","updated_at":"2025-09-04T14:40:22.469Z","parameter":"oxygen","unit":"mg_l","value":"6.99","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"59cb15a8-e2a2-4bb8-8c58-1757acb41931","created_at":"2025-09-04T14:40:22.493Z","updated_at":"2025-09-04T14:40:22.493Z","parameter":"secchi_depth","unit":"m","value":"3.75","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"bdb6b93a-7d31-4f8f-ad2b-2880a7871a1d","created_at":"2025-09-04T14:40:22.600Z","updated_at":"2025-09-04T14:40:22.600Z","parameter":"conductivity","unit":"us_cm","value":"211","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"3443b240-8538-44ce-8dd5-a81c5efe0d46","created_at":"2025-09-04T14:40:22.693Z","updated_at":"2025-09-04T14:40:22.693Z","parameter":"air_temperature","unit":"deg_c","value":"15.51","equipment":"unspecified_air_temperature","equipment_limit":null},{"id":"50ba9c11-3622-483a-b28c-42ccdc20f523","created_at":"2025-09-04T14:40:22.705Z","updated_at":"2025-09-04T14:40:22.705Z","parameter":"water_temperature","unit":"deg_c","value":"19.94","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"20d3984b-cbbf-44d9-86f4-a147844a08a5","created_at":"2025-09-04T14:40:22.680Z","updated_at":"2025-11-26T13:32:12.151Z","parameter":"oxygen","unit":"percent","value":"77","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"cf21a8c9-2c5b-4294-91ba-6d0b17f1d8ac","created_at":"2025-09-04T14:39:00.841Z","updated_at":"2026-01-20T21:02:07.207Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"c4effd59-b233-43dc-b3fa-ede043bb705b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2017-06-19T18:48:00.000Z","observed_at_local":"2017-06-19T14:48:00-04:00","notes":"\"sunny 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B16-31978-67","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":[],"readings":[{"id":"a643f9b4-699e-47db-9c55-200ff16a2ba1","created_at":"2025-09-04T14:34:52.740Z","updated_at":"2025-09-04T14:34:52.740Z","parameter":"total_phosphorus","unit":"ppb","value":"23","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"a87e0876-7293-4ded-b612-55ab18b9bdc3","created_at":"2025-09-04T14:34:52.753Z","updated_at":"2025-09-04T14:34:52.753Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"470","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"b3a96abd-8671-401c-a1ac-e54603a06bb3","created_at":"2025-09-04T14:34:52.565Z","updated_at":"2026-01-20T20:58:20.125Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"c4effd59-b233-43dc-b3fa-ede043bb705b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-28T16:00:00.000Z","observed_at_local":"2016-07-28T12:00:00-04:00","notes":"Calcium: 29\r\nSample: B16-22308-1","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":[],"readings":[{"id":"589001e1-ec4c-4c61-97a5-d35b4b0ee946","created_at":"2025-09-04T14:34:52.611Z","updated_at":"2025-09-04T14:34:52.611Z","parameter":"total_phosphorus","unit":"ppb","value":"9","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"62e8ccac-c614-4aee-bb47-ab4895bbe65b","created_at":"2025-09-04T14:34:52.660Z","updated_at":"2025-09-04T14:34:52.660Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"390","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"b93938a0-816b-4ce5-8f6b-66baba912264","created_at":"2025-09-04T14:34:52.772Z","updated_at":"2026-01-20T20:58:20.494Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"c4effd59-b233-43dc-b3fa-ede043bb705b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-06-23T16:00:00.000Z","observed_at_local":"2016-06-23T12:00:00-04:00","notes":"Sample: 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