{"id":"e637656c-723f-4c2d-bb8e-37eb006938f9","created_at":"2025-09-05T01:16:23.185Z","updated_at":"2026-02-10T15:21:01.095Z","owner_id":"53b9bdc7-d072-48cb-b9fc-d63d86808c95","location_id":"34b15a62-cc4a-4f96-963c-2c6cb06c3962","dataset_id":"c2aca479-5e0c-46c7-aab5-595d1e6098be","form_id":"9b91f1bb-bde8-4b56-b5a4-408af73c2f91","observed_at":"2022-05-05T17:30:00.000Z","notes":"Testing of home made Nephelometer using Arduino platform and Keystudio turbidity sensor complete with digital/analog amplifier gave a voltage output of 4.15vdc that equated to an NTU OF 156. Based on a linear relationship between voltage and NTU. Since the NTU is excessive, a manufacture’s quadratic equation will be evaluated. Should have 4.2v producing 0 NTU.","checked":"owner_approved","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","secchi_depth","hardness","nitrates","alkalinity","water_depth","conductivity","air_temperature","water_temperature","total_dissolved_solids_tds","current_weather","current_weather_description","chlorine"],"photos":[],"readings":[{"id":"ecda77b5-8a4a-4109-af9a-483052366548","created_at":"2025-09-05T01:16:23.206Z","updated_at":"2025-09-05T01:16:23.206Z","parameter":"ph","unit":"std_units","value":"7.3","equipment":"unspecified_ph","equipment_limit":null},{"id":"6a367439-134e-4f52-8693-522043eac308","created_at":"2025-09-05T01:16:23.209Z","updated_at":"2025-09-05T01:16:23.209Z","parameter":"secchi_depth","unit":"m","value":"5.4","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"3ff55c1a-de4a-4371-893e-300275a2c530","created_at":"2025-09-05T01:16:23.216Z","updated_at":"2025-09-05T01:16:23.216Z","parameter":"hardness","unit":"mg_l","value":"100","equipment":"unspecified_hardness","equipment_limit":null},{"id":"c8f80153-1c13-40fd-9c83-d63f64aabdec","created_at":"2025-09-05T01:16:23.225Z","updated_at":"2025-09-05T01:16:23.225Z","parameter":"nitrates","unit":"mg_l","value":"2.5","equipment":"unspecified_nitrates","equipment_limit":null},{"id":"4d9a32a4-198b-4ee5-be4f-af2963a2366a","created_at":"2025-09-05T01:16:23.229Z","updated_at":"2025-09-05T01:16:23.229Z","parameter":"alkalinity","unit":"mg_l","value":"80","equipment":"unspecified_alkalinity","equipment_limit":null},{"id":"106e9eec-03e8-4ef6-b1f6-2dcf61c0b94b","created_at":"2025-09-05T01:16:23.232Z","updated_at":"2025-09-05T01:16:23.232Z","parameter":"water_depth","unit":"m","value":"26","equipment":"unspecified_water_depth","equipment_limit":null},{"id":"f3a9907d-4ce0-4415-93a7-4b76e246971b","created_at":"2025-09-05T01:16:23.255Z","updated_at":"2025-09-05T01:16:23.255Z","parameter":"conductivity","unit":"us_cm","value":"134","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"65633373-921a-469b-bf8c-a6c12ff3feed","created_at":"2025-09-05T01:16:23.295Z","updated_at":"2025-09-05T01:16:23.295Z","parameter":"air_temperature","unit":"deg_c","value":"16","equipment":"unspecified_air_temperature","equipment_limit":null},{"id":"a5427f70-9e2a-4954-ac87-cc5efaff2682","created_at":"2025-09-05T01:16:23.299Z","updated_at":"2025-09-05T01:16:23.299Z","parameter":"water_temperature","unit":"deg_c","value":"9.5","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"b8bfa6b7-e627-40ed-bc66-275b2e433e27","created_at":"2025-09-05T01:16:23.302Z","updated_at":"2025-09-05T01:16:23.302Z","parameter":"total_dissolved_solids_tds","unit":"ppm","value":"63","equipment":"unspecified_tds","equipment_limit":null},{"id":"ab9a0f8f-0173-44a9-adb5-83b921339866","created_at":"2025-09-05T01:16:23.305Z","updated_at":"2025-09-05T01:16:23.305Z","parameter":"current_weather","unit":"nil","value":"sunny","equipment":"community_scientist_interpretation","equipment_limit":null},{"id":"22feaadf-ff03-44d7-8d74-d77130b48f90","created_at":"2025-09-05T01:16:23.309Z","updated_at":"2025-09-05T01:16:23.309Z","parameter":"current_weather_description","unit":"nil","value":"Full sun","equipment":"community_scientist_interpretation","equipment_limit":null},{"id":"f1fa1347-0eb4-4dd4-8fa6-6e6f0ea8c37a","created_at":"2025-09-05T01:16:23.213Z","updated_at":"2025-11-19T15:02:51.556Z","parameter":"chlorine","unit":"ppm","value":"0","equipment":"unspecified_chlorine","equipment_limit":"<="}]}