[{"id":"698d16e7-6f81-442e-a73f-3ba5d2045f06","created_at":"2025-09-04T17:33:51.215Z","updated_at":"2026-01-20T21:16:19.783Z","owner_id":"001b4867-58b3-4473-beb8-422e7cff8f10","location_id":"f68d6579-8745-492c-a9fa-0f5dbbe38dd2","dataset_id":"79c225ac-aa83-4fdc-8b91-4220752e4b2b","form_id":"dbc5b608-561e-43d1-bb45-c74ccb575f68","observed_at":"2017-09-24T18:52:00.000Z","observed_at_local":"2017-09-24T14:52:00-04:00","notes":"At the time of the reading, there was ongoing construction for a hydropower dam, on the falls directly upstream. Water quality and visibility deeper (farther from the shore) seemed affected by more sedimentation, algae accumulation on the rocks, and apparently significantly reduced flow.  ","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","alkalinity","water_depth","air_temperature","water_temperature","hardness"],"photos":[],"permalink":"https://data.waterrangers.com/observations/170773","readings":[{"id":"7c92a51a-ceaa-4fb2-bf98-18b9a50b0a04","created_at":"2025-09-04T17:33:51.331Z","updated_at":"2025-09-04T17:33:51.331Z","parameter":"ph","unit":"std_units","value":"7.2","equipment":"water_rangers_freshwater_teststrips_ph","equipment_limit":null},{"id":"e2d4f341-e5bd-4b29-8bf9-88ff94fb8062","created_at":"2025-09-04T17:33:51.371Z","updated_at":"2025-09-04T17:33:51.371Z","parameter":"oxygen","unit":"mg_l","value":"9","equipment":"chemetrics_dissolved_oxygen_mg_l","equipment_limit":null},{"id":"637eff17-8a66-4efe-bab8-db2793171391","created_at":"2025-09-04T17:33:51.395Z","updated_at":"2025-09-04T17:33:51.395Z","parameter":"secchi_depth","unit":"m","value":"bottom_visible","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"ac3f81aa-a003-4d52-b897-a8584e265b01","created_at":"2025-09-04T17:33:51.424Z","updated_at":"2025-09-04T17:33:51.424Z","parameter":"alkalinity","unit":"ppm","value":"40","equipment":"water_rangers_freshwater_teststrips_alkalinity","equipment_limit":null},{"id":"3f1f295e-a2ac-455b-a23b-e0aca0a646f1","created_at":"2025-09-04T17:33:51.436Z","updated_at":"2025-09-04T17:33:51.436Z","parameter":"water_depth","unit":"m","value":"0.25","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"2451f689-3805-4367-9109-21b13dd32526","created_at":"2025-09-04T17:33:51.448Z","updated_at":"2025-09-04T17:33:51.448Z","parameter":"air_temperature","unit":"deg_c","value":"27","equipment":"stream_thermometer_water_rangers","equipment_limit":null},{"id":"a8159032-4147-4bd7-a634-49951ef6d184","created_at":"2025-09-04T17:33:51.466Z","updated_at":"2025-09-04T17:33:51.466Z","parameter":"water_temperature","unit":"deg_c","value":"22.1","equipment":"water_rangers_pen_type_temperature_meter","equipment_limit":null},{"id":"ccef561e-30e7-468b-855d-41bd0b7f13fc","created_at":"2025-09-04T17:33:51.415Z","updated_at":"2025-11-19T15:02:45.612Z","parameter":"hardness","unit":"ppm","value":"0","equipment":"water_rangers_freshwater_teststrips_hardness","equipment_limit":"<="}]}]