{"id":"f5224a81-1aad-4d1b-a67c-6cb8efdf7246","created_at":"2021-09-01T15:31:44.111Z","updated_at":"2026-01-08T15:32:15.827Z","name":"River des Peres at Mona Terrace","slug":"river-des-peres-at-mona-terrace","permalink":"https://data.waterrangers.com/locations/river-des-peres-at-mona-terrace","dataset_id":"c3318da1-130d-44d1-8d21-7005b3825c8b","latitude":"38.670351","longitude":"-90.340451","country":"United States","body_of_water":"River des Peres","water_body_type":"river_or_stream","investigative":false,"tested_parameters":["chloride","conductivity"],"tested_equipment":["other_pen_type_conductivity_meter_us_cm","unspecified_chloride"],"reference_photo_url":null,"first_observation_at":"2013-12-05T00:00:00.000Z","last_observation_at":"2018-02-10T00:00:00.000Z"}