{"id":"0f872c4b-1e5e-400c-801b-619086b4fa7d","created_at":"2025-01-17T13:46:16.007Z","updated_at":"2026-01-20T19:50:34.415Z","name":"Grahm Lake","slug":"grahm-lake","permalink":"https://data.waterrangers.com/locations/grahm-lake","dataset_id":"9fe95470-ee07-4e83-aa27-fed550fd6359","latitude":"44.552591","longitude":"-75.89819","country":"Canada","body_of_water":"Grahm Lake","water_body_type":"lake","investigative":false,"tested_parameters":["ph","oxygen","hardness","alkalinity","conductivity","air_temperature","water_temperature","chlorine"],"tested_equipment":["chemetrics_dissolved_oxygen_mg_l","stream_thermometer_water_rangers","water_rangers_freshwater_teststrips_alkalinity","water_rangers_freshwater_teststrips_chlorine","water_rangers_freshwater_teststrips_hardness","water_rangers_freshwater_teststrips_ph","water_rangers_pen_type_conductivity_meter_low_range","water_rangers_pen_type_temperature_meter"],"reference_photo_url":null,"first_observation_at":"2023-09-21T14:00:00.000Z","last_observation_at":"2023-09-21T14:00:00.000Z"}