{"id":"c779ff83-b66a-4c0e-b50c-dd12f228f495","created_at":"2025-09-02T20:45:16.911Z","updated_at":"2026-07-08T19:30:48.973Z","owner_id":"20cf53db-dabe-40ac-90f8-7d6eaedf7bc5","location_id":"df5eb9e0-0499-4111-a909-fbc81cc0b299","dataset_id":"62ade46c-873c-4070-9383-e9645c0ba1b4","form_id":"4c5e7f9c-674c-4b99-817e-0631cd8d3fd8","observed_at":"2018-08-24T15:00:00.000Z","observed_at_local":"2018-08-24T11:00:00-04:00","notes":"Heavy rain in the past 48 hours. Damselflies, great spangled fritillary, monarch, cabbage white and clouded sulphur butterflies all sighted. Milkweed, pincherries and thistle growing on stream bank. Crow and goldfinches heard calling.","checked":"review_needed","qa_notes":"Review needed: oxygen's result of 4.4mg/L is outside the expected range of 4.73-11.57mg/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":["turbidity","ph","oxygen","nitrate_nitrogen","alkalinity","water_depth","air_temperature","water_temperature","phosphates"],"photos":[],"permalink":"https://data.waterrangers.com/observations/119231","readings":[{"id":"83e4bf0a-63eb-4b58-89c6-a822186669ad","created_at":"2025-12-10T17:02:08.513Z","updated_at":"2025-12-10T17:02:08.513Z","parameter":"turbidity","unit":"ntu","value":"0","equipment":"turbidity_tube_45cm","equipment_limit":"<"},{"id":"0400b6c3-71e8-4892-ae1f-605af5660734","created_at":"2025-09-02T20:45:16.944Z","updated_at":"2025-09-02T20:45:16.944Z","parameter":"ph","unit":"std_units","value":"7","equipment":"water_rangers_freshwater_teststrips_ph","equipment_limit":null},{"id":"ff12779b-9c6d-41be-8cf8-0412a13f45d8","created_at":"2025-09-02T20:45:16.950Z","updated_at":"2025-09-02T20:45:16.950Z","parameter":"oxygen","unit":"mg_l","value":"4.4","equipment":"chemetrics_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"10436930-44a5-41a5-bbc4-e02b33f5c40d","created_at":"2025-09-02T20:45:16.954Z","updated_at":"2025-11-19T15:02:29.267Z","parameter":"nitrate_nitrogen","unit":"mg_l","value":"0","equipment":"kyoritsu_packtest_nitrate_nitrogen","equipment_limit":"<="},{"id":"f0ea7a4e-66c8-486a-b364-97d2d05fc6bc","created_at":"2025-09-02T20:45:16.959Z","updated_at":"2025-09-02T20:45:16.959Z","parameter":"alkalinity","unit":"ppm","value":"164","equipment":"water_rangers_freshwater_teststrips_alkalinity","equipment_limit":null},{"id":"350c7444-889e-48ea-b65c-b7dad43c2d7b","created_at":"2025-09-02T20:45:16.967Z","updated_at":"2025-09-02T20:45:16.967Z","parameter":"water_depth","unit":"m","value":"0.92","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"527ce535-9145-4641-8b41-5a710bee6e54","created_at":"2025-09-02T20:45:16.971Z","updated_at":"2025-09-02T20:45:16.971Z","parameter":"air_temperature","unit":"deg_c","value":"24","equipment":"stream_thermometer_water_rangers","equipment_limit":null},{"id":"3000a931-c4fa-4b6c-b011-27b75b2ccbd7","created_at":"2025-09-02T20:45:16.976Z","updated_at":"2025-09-02T20:45:16.976Z","parameter":"water_temperature","unit":"deg_c","value":"18","equipment":"water_rangers_pen_type_temperature_meter","equipment_limit":null},{"id":"afa0ecee-c017-4ea9-b2de-154d4a4b66c4","created_at":"2025-12-10T17:52:48.897Z","updated_at":"2025-12-10T17:52:48.897Z","parameter":"phosphates","unit":"ppm","value":"0.2","equipment":"unspecified_phosphates","equipment_limit":null}]}