The Shewhart-Deming Control Charts for Water Use Management
Proper management of water use is possible only provided that the processes occurring in water and determining variability of the indicators to be controlled are statistically stable. Therefore, observation of the processes' stability/instability is a main problem of sustainable water use to solve which the use of Shewhart-Deming control charts (SCC) has been proposed. This involves procedures of observation of correlation between the controlled indicators individual values and root-mean-square deviation as a natural measure of their variability. In case of necessity to check the water quality inspection results with SCC it was proposed to “de-trend” the data dynamic series. This control method effectiveness has been shown by the example of stability observation of the pollutant concentration change in industrial waste waters.