Correlation and autocorrelation analysis of time series of full-scale observations of joint hydrological and hydro- chemical characteristics in the case of nutrient pollution of small rivers in the Non-Black Earth Zone of the RF (Upper Volga River Basin)
In assessing the contamination of small rivers of sewage coming from drainage systems, to allocate the sunset times. Based on the stochastic approach proposed method of assessing the allowable level of pollution. The article shows the results of correlation and autocorrelation analysis of the multi-data field observations on the three sites Roshydromet.