This package contains raw data, preprocessed data, and simulation results for the following manuscript: Lechevallier, P., Zhu, W., Shi, B., McCarthy, D., Rieckermann, J., 2025. Non-contact hyperspectral monitoring of urban wastewater quality: Optimization of model calibration and performance. Journal of Environmental Management 394, 127217. https://doi.org/10.1016/j.jenvman.2025.127217 This package also includes Python codes for data preprocessing, simulations, and the generation of manuscript figures and tables.