The article investigates the adequacy of the mathematical model of oxygen regime prediction in the Dnieper basin, based on the classic Streiter-Phelps
model. Retrospective analysis of the Dnieper oxygen parameters with further verification of the Streeter- Phelps model adequacy for the Dnieper basin conditions was used. The mathematical model of the dynamics of the integral indices of the ecological state of the reservoir (the Streeter-Phelps model) has been improved by supplementing the corrective coefficients, which allows predicting with sufficient accuracy the change of the Dnieper ecological state.
 Marynych O. M., Shyshchenko P. H.: Physical Geography of Ukraine, Textbook. K.: Znannia, 2005.
 Savchuk D.: Ecolog. Bulletin, 2003, 5–6, 24.
 Ponomarenko R. V., Plyatsuk L. D., Tretyakov O. V., Kovalov P. A.: Scientific and technical journal "Technogenic and ecological safety", 2019, 6 (2), 69.
 Bezsonnyi V., Tretyakov O., Khalmuradov B., Ponomarenko R.: Eastern-European Journal of Enterprise Technologies. 2017, 5/10 (89), 32.
 Bezsonnyi V., Tretyakov O., Kravchuk A.M., Statsenko Yu.F.: Construction, material science,
mechanical engineering: Coll. of sciences. wash. Series: Life Safety. DVNZ «Pridnepr. state. Academy of Construction and Architecture"; under the general editorship of V.I. Bolshakov. Dnipro, 2016, 93, 113.
 Mokin B. I. Mokin V. B., Mokin O. B.: Mathematical methods for the identification of dynamic systems: a textbook. Vinnitsa: VNTU, 2010.
 Rohalev А. N.: Materials of the XIV Conference with International Participation: Institute of Computational Technologies, Siberian Branch of the Russian Academy of Sciences 2012,101.
 Tretyakov O.V., Bezsonnyi V.L., Ponomarenko R.V., Borodych P.Iu.: Emergency Problems: A Scientific Journal. 2019, 29, 61.
 Map of Monitoring and Environmental Assessment of Water Resources of Ukraine. State Agency for Water Resources of Ukraine. http://monitoring.davr. gov.ua/EcoWaterMon/GDKMap/Index
 DSTU 4808:2007. Sources of centralized drinking water supply. Hygienic and environmental requirements for water quality and selection rules: enforced by the order of the State Consumer Standard of Ukraine from 05.07.07 р. №144. Official edition. K. : State Consumer Standard of Ukraine, 2007. 39.