{"id":"8a198188-ef1d-406c-adf4-ac3835bc47b7","created_at":"2026-04-30T16:14:03.637Z","updated_at":"2026-09-26T11:20:40.205Z","name":"Chilworth Gunpowder Mills","slug":"chilworth-gunpowder-mills","permalink":"https://data.waterrangers.com/locations/chilworth-gunpowder-mills","dataset_id":"5ff10d42-3bbb-4442-93c0-b2777b1c0e0d","latitude":"51.217966","longitude":"-0.529161","country":"United Kingdom","body_of_water":"River Tillingbourne","water_body_type":"river_or_stream","investigative":false,"tested_parameters":["total_coliform","water_temperature","e_coli","conductivity","phosphate_phosphorus","nitrate_nitrogen","algae","invasive_plants_uk","on_the_water_s_surface","odour","water_flow","water_level","air_temperature","chlorine","ph","alkalinity","hardness","current_weather","current_weather_description","previous_weather","colour","clarity","secchi_depth","previous_weather_description","phosphates","water_use"],"tested_equipment":["idexx_colilert_2000_tc","water_rangers_pen_type_temperature_meter","idexx_colilert_2000_e_coli","water_rangers_pen_type_conductivity_meter_low_range","kyoritsu_packtest_phosphate_phosphorus","kyoritsu_packtest_nitrate_nitrogen","community_scientist_interpretation_env","stream_thermometer_water_rangers","water_rangers_freshwater_teststrips_chlorine","water_rangers_freshwater_teststrips_ph","water_rangers_freshwater_teststrips_alkalinity","water_rangers_freshwater_teststrips_hardness","community_scientist_interpretation","secchi_disk_20cm","hanna_checker_phosphates_low_range"],"reference_photo_url":"http://d27925nfpi4rwv.cloudfront.net/rails/active_storage/representations/proxy/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBd1lEQXc9PSIsImV4cCI6IjIwMjYtMTAtMDhUMDA6Mjc6NDQuNDc1WiIsInB1ciI6ImJsb2JfaWQifX0=--3e8f1d624a7fb54ff7eada71f659efd1cecc1b7c/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCem9MWm05eWJXRjBTU0lJYW5CbkJqb0dSVlE2RTNKbGMybDZaVjkwYjE5bWFXeHNXd2RwQXBBQmFRS1FBUT09IiwiZXhwIjpudWxsLCJwdXIiOiJ2YXJpYXRpb24ifX0=--137cfa046b685d2c2c17f66eaa6c647bd283e601/Chiliworth.jpg","first_observation_at":"2026-04-26T13:52:00.000Z","last_observation_at":"2026-09-25T08:10:00.000Z"}