Fluorescence fingerprints were collected on a Horiba Aqualog spectrofluorometer. TRM-0522 in powdered form was dissolved to a concentration of 4 mg L-1 (in ultrapure water). Integration times for fluorescence emission scans varied between 5 and 9 seconds. Excitation scans measured from 240 to 450 nm at 3 nm increments with captured between 246 and 823 nm. Data import, pre-processing, and modelling was carried out using the drEEM toolbox v2.25.10. The CDOM absorbance spectrum was extrapolated beyond 450 nm using an exponential fit between 350 and 450 nm. Baseline absorbance offsets were corrected by subtraction at 600 nm. Inner-filter effects were compensated with the absorbance-based approach. Fluorescence blanks were subtracted to minimize the extent of scatter, and the fluorescence signals were normalized by the Raman peak area at 350 nm. Rayleigh and Raman scatter (1st and 2nd order) were removed without interpolation. These data and processes are described in and by the file "TRM-0522_oneSamplePARAFAC.zip" PARAFAC models with two to seven components were explored and a six-component model was chosen as the most appropriate representation. This model is documented in the file "TRM-0522_oneSamplePARAFAC.xlsx"