A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Division of Chemistry and Division of Materials Research through Cooperative Agreement No. DMR-1644779 and the State of Florida. All software used for data processing are publicaly available: https://nationalmaglab.org/user-facilities/icr/icr-software. Petroorg (C) tutorial videos can be found here: https://www.youtube.com/playlist?list=PLeEvevEX4ZMR70U-hQN6t3Hj4jGvVpOwu. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Division of Chemistry and Division of Materials Research through Cooperative Agreement No. DMR-1644779 and the State of Florida. All software used for data processing are publicaly available: https://nationalmaglab.org/user-facilities/icr/icr-software. Petroorg (C) tutorial videos can be found here: https://www.youtube.com/playlist?list=PLeEvevEX4ZMR70U-hQN6t3Hj4jGvVpOwu. Fourier-transform ion cyclotron resonance (FT-ICR MS) data for subwatersheds in the Aangooxa Yé/Fish Creek watershed from 2018.