Most datasets on Water Rangers' data platform are test results from our freshwater and marine testkits. These consists of baseline water quality parameters for fresh and marine waters. We also host results from our winter roadsalt monitoring kits, and nutrient monitoring. Some organizations monitor additional parameters, such as E.coli. Our data format is based on the WQX standard for the Exchange of Water Quality Data. This format was developed by the US Environmental Protection Agency (EPA) and the US Geological Society (USGS).