Y.A. Prokhorov - Head of Department of water using, Ministry of natural resources and environment of the Kaluga region. E-mail: prohorovya@adm.kaluga.ru O.A. Padalka - Post-graduate Student, Kaluga branch of the Bauman MSTU; Senior Engineer, Ecoanalytica LLC (Kaluga). E-mail: ecoanalyt.kaluga@yandex.ru A.D. Molodyk - Ph. D. (Chem.), Deputy Director по науке, Ecoanalytica LLC (Kaluga). E-mail: ecoanalyt.kaluga@yandex.ru A.P. Korzhavyi - Dr. Sc. (Eng.), Professor, Kaluga branch of the Bauman MSTU. E-mail: fn2kf@list.ru