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the expected range of 5.56-6.44mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","hardness","turbidity","alkalinity","Fluorescence","air_temperature","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/105619","readings":[{"id":"e56aba43-9843-4fe7-932a-7a1eda8a7cb4","created_at":"2025-08-28T14:22:31.755Z","updated_at":"2025-08-28T14:22:31.755Z","parameter":"ph","unit":"std_units","value":"8","equipment":"lamotte_precision_ph","equipment_limit":null},{"id":"968a3440-57ee-4926-9ec3-d32aea6ca507","created_at":"2025-08-28T14:22:31.760Z","updated_at":"2025-08-28T14:22:31.760Z","parameter":"oxygen","unit":"mg_l","value":"8","equipment":"lamotte_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"fdaad8d8-460f-45b1-a54b-106d811107f9","created_at":"2025-08-28T14:22:31.765Z","updated_at":"2025-08-28T14:22:31.765Z","parameter":"hardness","unit":"ppm","value":"30","equipment":"lamotte_hardness","equipment_limit":null},{"id":"79a16153-2a59-4eef-86d7-7c1bd002747f","created_at":"2025-08-28T14:22:31.769Z","updated_at":"2025-08-28T14:22:31.769Z","parameter":"turbidity","unit":"jtu","value":"5","equipment":"lamotte_turbidity","equipment_limit":null},{"id":"36a23863-91bb-45f5-95f2-34b0f447ce4d","created_at":"2025-08-28T14:22:31.773Z","updated_at":"2025-08-28T14:22:31.773Z","parameter":"alkalinity","unit":"ppm","value":"20","equipment":"lamotte_alkalinity","equipment_limit":null},{"id":"1bc2b788-c972-4d0b-8c62-5c72e1b108ac","created_at":"2025-08-28T14:22:31.779Z","updated_at":"2025-08-28T14:22:31.779Z","parameter":"Fluorescence","unit":"ppm","value":"23.24","equipment":"fluorometer_ppm","equipment_limit":null},{"id":"7bb4236e-e923-418b-95fa-56162178d0da","created_at":"2025-08-28T14:22:31.787Z","updated_at":"2025-08-28T14:22:31.787Z","parameter":"turbidity","unit":"jtu","value":"8.23","equipment":"lamotte_turbidity","equipment_limit":null},{"id":"f1925d12-a011-4775-881e-3e2fb2a405c0","created_at":"2025-08-28T14:22:31.791Z","updated_at":"2025-08-28T14:22:31.791Z","parameter":"air_temperature","unit":"deg_c","value":"13","equipment":"digital_thermometer_c","equipment_limit":null},{"id":"c3a82787-10bf-4b12-9e51-d4df364c28ed","created_at":"2025-08-28T14:22:31.795Z","updated_at":"2025-08-28T14:22:31.795Z","parameter":"water_temperature","unit":"deg_c","value":"12.7","equipment":"other_multimeter_temperature","equipment_limit":null}]},{"id":"bf9ea68f-c7e7-4a0f-a5ab-0339db1179fa","created_at":"2025-08-28T14:22:30.479Z","updated_at":"2026-01-21T21:02:31.723Z","owner_id":"1e654029-0a00-4c65-997c-83b406517556","location_id":"fe095a44-effb-4585-9a86-d76b3eb03bf8","dataset_id":"10c7de66-e5c6-45aa-a850-97a32e0b783f","form_id":"04a9e3dc-e800-4670-9054-57e4956a39d8","observed_at":"2018-01-25T17:57:00.000Z","observed_at_local":"2018-01-25T11:57:00-06:00","notes":"","checked":"review_needed","qa_notes":"Review needed: Based on previous readings, ph's result of 8.51std_units is outside the expected range of 4.13-6.88std_units.\nReview needed: Based on previous readings, oxygen's result of 9.1mg/L is outside the expected range of 5.56-6.44mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","hardness","alkalinity","Fluorescence","turbidity","air_temperature","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/105604","readings":[{"id":"c54a32ce-ae28-4d10-a492-02ee4e6bac0b","created_at":"2025-08-28T14:22:30.520Z","updated_at":"2025-08-28T14:22:30.520Z","parameter":"ph","unit":"std_units","value":"8.51","equipment":"lamotte_precision_ph","equipment_limit":null},{"id":"f70b9e4f-8b0c-47b5-855a-4f99ab894255","created_at":"2025-08-28T14:22:30.525Z","updated_at":"2025-08-28T14:22:30.525Z","parameter":"oxygen","unit":"mg_l","value":"9.1","equipment":"lamotte_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"1beeb273-6ed6-4250-ab5c-f500df45344b","created_at":"2025-08-28T14:22:30.534Z","updated_at":"2025-08-28T14:22:30.534Z","parameter":"hardness","unit":"ppm","value":"30","equipment":"lamotte_hardness","equipment_limit":null},{"id":"1bd88276-616f-4db2-813b-fb483947e40d","created_at":"2025-08-28T14:22:30.539Z","updated_at":"2025-08-28T14:22:30.539Z","parameter":"alkalinity","unit":"ppm","value":"10","equipment":"lamotte_alkalinity","equipment_limit":null},{"id":"f9c6f3e4-aa8c-4f2e-b9b0-7ac39cbc5354","created_at":"2025-08-28T14:22:30.548Z","updated_at":"2025-08-28T14:22:30.548Z","parameter":"Fluorescence","unit":"ppm","value":"70.1","equipment":"fluorometer_ppm","equipment_limit":null},{"id":"b99bb960-c345-4276-b93b-e80d9773a425","created_at":"2025-08-28T14:22:30.553Z","updated_at":"2025-08-28T14:22:30.553Z","parameter":"turbidity","unit":"jtu","value":"3.26","equipment":"lamotte_turbidity","equipment_limit":null},{"id":"b1b25c22-2f46-4843-9d90-e5ebb84d6ad3","created_at":"2025-08-28T14:22:30.559Z","updated_at":"2025-08-28T14:22:30.559Z","parameter":"air_temperature","unit":"deg_c","value":"11.1","equipment":"digital_thermometer_c","equipment_limit":null},{"id":"13d43921-ebd4-4060-bc80-c869a85db208","created_at":"2025-08-28T14:22:30.564Z","updated_at":"2025-08-28T14:22:30.564Z","parameter":"water_temperature","unit":"deg_c","value":"7.4","equipment":"other_multimeter_temperature","equipment_limit":null}]},{"id":"b4cdb00f-af73-439f-96cf-049fa1d894d2","created_at":"2025-08-28T14:22:30.127Z","updated_at":"2026-01-02T18:22:42.436Z","owner_id":"52409624-4598-4f69-82ff-d2647e680bcd","location_id":"fe095a44-effb-4585-9a86-d76b3eb03bf8","dataset_id":"10c7de66-e5c6-45aa-a850-97a32e0b783f","form_id":"04a9e3dc-e800-4670-9054-57e4956a39d8","observed_at":"2017-11-15T03:03:00.000Z","observed_at_local":"2017-11-14T21:03:00-06:00","notes":"","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","hardness","air_temperature","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/105599","readings":[{"id":"c3c94639-7948-40b2-a060-dd7dfb860df2","created_at":"2025-08-28T14:22:30.156Z","updated_at":"2025-08-28T14:22:30.156Z","parameter":"ph","unit":"std_units","value":"6","equipment":"lamotte_precision_ph","equipment_limit":null},{"id":"4972ad4a-7867-4d9d-8b8f-9e6f85c9a9c3","created_at":"2025-08-28T14:22:30.161Z","updated_at":"2025-08-28T14:22:30.161Z","parameter":"oxygen","unit":"mg_l","value":"6","equipment":"lamotte_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"84bef58c-76aa-4a24-a0f6-9f9f1cabd2fb","created_at":"2025-08-28T14:22:30.164Z","updated_at":"2025-08-28T14:22:30.164Z","parameter":"hardness","unit":"ppm","value":"50","equipment":"lamotte_hardness","equipment_limit":null},{"id":"14bb68b3-55a6-4556-8788-913c8ce2c773","created_at":"2025-08-28T14:22:30.167Z","updated_at":"2025-08-28T14:22:30.167Z","parameter":"air_temperature","unit":"deg_c","value":"14","equipment":"digital_thermometer_c","equipment_limit":null},{"id":"fc764f24-4fd3-4585-a129-8ca16e3cf8aa","created_at":"2025-08-28T14:22:30.171Z","updated_at":"2025-08-28T14:22:30.171Z","parameter":"water_temperature","unit":"deg_c","value":"13.5","equipment":"other_multimeter_temperature","equipment_limit":null}]},{"id":"06661013-89f2-4fc1-9b70-3a7f357f92ec","created_at":"2025-08-28T14:22:29.801Z","updated_at":"2026-01-02T18:22:40.179Z","owner_id":"8fa354f8-e337-45d4-b8f7-06ec6abfcdb4","location_id":"fe095a44-effb-4585-9a86-d76b3eb03bf8","dataset_id":"10c7de66-e5c6-45aa-a850-97a32e0b783f","form_id":"04a9e3dc-e800-4670-9054-57e4956a39d8","observed_at":"2017-05-05T12:55:00.000Z","observed_at_local":"2017-05-05T07:55:00-05:00","notes":"Lots 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