[{"id":"de714564-4919-4bf2-a576-df2e0295744c","created_at":"2025-07-10T21:16:19.534Z","updated_at":"2026-01-20T19:49:30.911Z","owner_id":"858aa612-be2e-44f6-97aa-9d4985aaf6b3","location_id":"99155e6f-3344-4cca-8a79-1b5b8c47ed6c","dataset_id":"8ca3f5cf-8fae-49fe-92d5-928468a8431c","form_id":"fcd2ffab-f05c-40c2-9b8d-a49c3eeb68fd","observed_at":"2018-07-13T19:30:00.000Z","observed_at_local":"2018-07-13T15:30:00-04:00","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","secchi_depth","chlorine","alkalinity","water_depth","conductivity","water_temperature","hardness"],"photos":[],"permalink":"https://data.waterrangers.com/observations/52743","readings":[{"id":"e46dda28-6f20-4a83-b52a-c935135fa837","created_at":"2025-07-10T21:16:19.605Z","updated_at":"2025-07-10T21:16:19.605Z","parameter":"ph","unit":"std_units","value":"6.5","equipment":"water_rangers_freshwater_teststrips_ph","equipment_limit":null},{"id":"f150da59-59da-4973-97ff-f48a29d99b60","created_at":"2025-07-10T21:16:19.618Z","updated_at":"2025-07-10T21:16:19.618Z","parameter":"oxygen","unit":"mg_l","value":"7.0","equipment":"chemetrics_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"70ad5613-1af9-49d4-b691-ab6baae1cf61","created_at":"2025-07-10T21:16:19.627Z","updated_at":"2025-07-10T21:16:19.627Z","parameter":"secchi_depth","unit":"m","value":"3.0","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"39a2228d-b1be-4876-b096-01bb941d7b09","created_at":"2025-07-10T21:16:19.646Z","updated_at":"2025-07-10T21:16:19.646Z","parameter":"chlorine","unit":"ppm","value":"0.3","equipment":"water_rangers_freshwater_teststrips_chlorine","equipment_limit":null},{"id":"4c4d8874-86d6-42e2-96c2-7f667e6c20fd","created_at":"2025-07-10T21:16:19.686Z","updated_at":"2025-07-10T21:16:19.686Z","parameter":"alkalinity","unit":"ppm","value":"40","equipment":"water_rangers_freshwater_teststrips_alkalinity","equipment_limit":null},{"id":"5cc664b8-cb4a-4451-bbdd-534c5f620f64","created_at":"2025-07-10T21:16:19.692Z","updated_at":"2025-07-10T21:16:19.692Z","parameter":"water_depth","unit":"m","value":"12.0","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"f804656e-e1a4-47ef-8ce8-d1aa5f655681","created_at":"2025-07-10T21:16:19.701Z","updated_at":"2025-07-10T21:16:19.701Z","parameter":"conductivity","unit":"us_cm","value":"16","equipment":"water_rangers_pen_type_conductivity_meter_low_range","equipment_limit":null},{"id":"6b4f2650-cac0-48d8-9af7-5938f19bae37","created_at":"2025-07-10T21:16:19.708Z","updated_at":"2025-07-10T21:16:19.708Z","parameter":"water_temperature","unit":"deg_c","value":"23","equipment":"water_rangers_pen_type_temperature_meter","equipment_limit":null},{"id":"fda68d2e-a01f-4205-9cff-a1cfb8dad3a4","created_at":"2025-07-10T21:16:19.666Z","updated_at":"2025-11-19T15:02:02.365Z","parameter":"hardness","unit":"ppm","value":"0","equipment":"water_rangers_freshwater_teststrips_hardness","equipment_limit":"<="}]}]