{"id":"2b989136-f59e-4180-9262-4e2b4644fde3","created_at":"2025-09-02T20:45:25.096Z","updated_at":"2026-07-08T19:30:52.398Z","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":"2017-02-03T15:00:00.000Z","observed_at_local":"2017-02-03T10:00:00-05:00","notes":"Snow is getting high along the stream bank (over a foot in some areas). Found mussel shell at sampling site. First time testing chlorides. Completed sample tests in lab, not in situ.","checked":"review_needed","qa_notes":"Review needed: ph's result of 8.5std_units is outside the expected range of 6.4-8.4std_units (25.0% difference from the historical median for this location).","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["air_temperature","ph","oxygen","chloride","nitrate_nitrogen","water_depth","water_temperature","alkalinity","phosphates","turbidity"],"photos":[],"permalink":"https://data.waterrangers.com/observations/119339","readings":[{"id":"9618819d-14f4-41fa-b807-3accd8b5138d","created_at":"2025-12-05T23:01:13.863Z","updated_at":"2025-12-05T23:01:13.863Z","parameter":"air_temperature","unit":"deg_c","value":"-2","equipment":"stream_thermometer_water_rangers","equipment_limit":null},{"id":"43c22039-824f-4eb5-8728-b77908df0c79","created_at":"2025-09-02T20:45:25.127Z","updated_at":"2025-09-02T20:45:25.127Z","parameter":"ph","unit":"std_units","value":"8.5","equipment":"water_rangers_freshwater_teststrips_ph","equipment_limit":null},{"id":"7b7d798d-e5f1-4d70-955b-69c256280c32","created_at":"2025-09-02T20:45:25.133Z","updated_at":"2025-09-02T20:45:25.133Z","parameter":"oxygen","unit":"mg_l","value":"9.8","equipment":"chemetrics_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"338a5597-3ad7-485b-b567-cc32812c0d12","created_at":"2025-09-02T20:45:25.141Z","updated_at":"2025-09-02T20:45:25.141Z","parameter":"chloride","unit":"mg_l","value":"110","equipment":"hach_chloride_low_range","equipment_limit":null},{"id":"5ba9590d-b5e5-4247-8dab-df5e6ba7a249","created_at":"2025-09-02T20:45:25.156Z","updated_at":"2025-09-02T20:45:25.156Z","parameter":"nitrate_nitrogen","unit":"mg_l","value":"4","equipment":"kyoritsu_packtest_nitrate_nitrogen","equipment_limit":null},{"id":"11673ac0-e857-4708-a2c2-2422e0318941","created_at":"2025-09-02T20:45:25.168Z","updated_at":"2025-09-02T20:45:25.168Z","parameter":"water_depth","unit":"m","value":"0.09","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"d6e3e9c3-bd71-42db-a5bd-4f45297ae56b","created_at":"2025-09-02T20:45:25.174Z","updated_at":"2025-09-02T20:45:25.174Z","parameter":"water_temperature","unit":"deg_c","value":"4","equipment":"water_rangers_pen_type_temperature_meter","equipment_limit":null},{"id":"33685957-0636-461f-aac8-aad00b678391","created_at":"2025-09-02T20:45:25.163Z","updated_at":"2025-11-19T15:02:29.267Z","parameter":"alkalinity","unit":"ppm","value":"240","equipment":"water_rangers_freshwater_teststrips_alkalinity","equipment_limit":">="},{"id":"9894a804-4d94-4772-bf4c-802864062c21","created_at":"2025-09-02T20:45:25.178Z","updated_at":"2025-11-19T15:02:29.267Z","parameter":"phosphates","unit":"ppm","value":"0","equipment":"unspecified_phosphates","equipment_limit":"<="},{"id":"85954079-66c5-41b5-a60d-ce5009ea2199","created_at":"2025-12-10T17:03:07.443Z","updated_at":"2025-12-10T17:03:07.443Z","parameter":"turbidity","unit":"ntu","value":"10","equipment":"turbidity_tube_45cm","equipment_limit":"<"}]}