{"id":"21c49825-f611-4496-88de-b91e7a9d396e","created_at":"2025-09-02T20:45:20.852Z","updated_at":"2026-07-08T19:30:50.947Z","owner_id":"0edffc84-3a3f-4220-9c3f-c5f621b07684","location_id":"93e7d0db-4787-4977-a1fa-5171b30cfe7f","dataset_id":"62ade46c-873c-4070-9383-e9645c0ba1b4","form_id":"4c5e7f9c-674c-4b99-817e-0631cd8d3fd8","observed_at":"2018-04-24T18:30:00.000Z","observed_at_local":"2018-04-24T14:30:00-04:00","notes":"","checked":"review_needed","qa_notes":"Review needed: oxygen's result of 12.2mg/L is outside the expected range of 4.94-12.0mg/L (3.0 standard deviations from the historical mean for this location).","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["alkalinity","turbidity","ph","chloride","nitrate_nitrogen","water_depth","air_temperature","water_temperature","phosphates","oxygen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/119284","readings":[{"id":"f55d7c5c-defd-4bf7-a71c-66d1400e6eb3","created_at":"2025-12-10T15:39:09.178Z","updated_at":"2025-12-10T15:39:09.178Z","parameter":"alkalinity","unit":"ppm","value":"264","equipment":"water_rangers_freshwater_teststrips_alkalinity","equipment_limit":">"},{"id":"cb53cbc5-d7eb-46ca-9955-a5d68d5c0443","created_at":"2025-12-10T17:02:12.239Z","updated_at":"2025-12-10T17:02:12.239Z","parameter":"turbidity","unit":"ntu","value":"0","equipment":"turbidity_tube_45cm","equipment_limit":"<"},{"id":"0c42311c-ba70-46a7-8dde-e42d6efc06fc","created_at":"2025-09-02T20:45:20.892Z","updated_at":"2025-09-02T20:45:20.892Z","parameter":"ph","unit":"std_units","value":"8","equipment":"water_rangers_freshwater_teststrips_ph","equipment_limit":null},{"id":"1206da24-1eda-4457-8d5e-d3b92ea2a618","created_at":"2025-09-02T20:45:20.900Z","updated_at":"2025-09-02T20:45:20.900Z","parameter":"chloride","unit":"mg_l","value":"92","equipment":"hach_chloride_low_range","equipment_limit":null},{"id":"10dc444a-9f93-4d34-9317-0a2c916200db","created_at":"2025-09-02T20:45:20.905Z","updated_at":"2025-09-02T20:45:20.905Z","parameter":"nitrate_nitrogen","unit":"mg_l","value":"4","equipment":"kyoritsu_packtest_nitrate_nitrogen","equipment_limit":null},{"id":"8b9bac94-e58b-44fa-ac4b-535d138659cb","created_at":"2025-09-02T20:45:20.914Z","updated_at":"2025-09-02T20:45:20.914Z","parameter":"water_depth","unit":"m","value":"0.21","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"6be10400-d456-4fd2-925e-cb6a045732fb","created_at":"2025-09-02T20:45:20.924Z","updated_at":"2025-09-02T20:45:20.924Z","parameter":"air_temperature","unit":"deg_c","value":"15","equipment":"stream_thermometer_water_rangers","equipment_limit":null},{"id":"cf704ca3-6444-4c12-bbfd-91d3ae3f38bb","created_at":"2025-09-02T20:45:20.928Z","updated_at":"2025-09-02T20:45:20.928Z","parameter":"water_temperature","unit":"deg_c","value":"9.5","equipment":"water_rangers_pen_type_temperature_meter","equipment_limit":null},{"id":"b3a2238f-8593-4e36-bb9c-4ab76922c5b3","created_at":"2025-09-02T20:45:20.932Z","updated_at":"2025-11-19T15:02:29.267Z","parameter":"phosphates","unit":"ppm","value":"0","equipment":"unspecified_phosphates","equipment_limit":"<="},{"id":"578d928a-cd1f-4c31-b9f8-4d0fbd6d9334","created_at":"2025-12-10T17:23:53.043Z","updated_at":"2025-12-10T17:23:53.043Z","parameter":"oxygen","unit":"mg_l","value":"12.2","equipment":"chemetrics_dissolved_oxygen_mg_l","equipment_limit":">"}]}