This app was designed to get an idea of the empirical distributions of the concentrations of Barium and Sulphate in surface water data for different periods. Each coarse time period roughly covers a span of 20 years. The empirical distributions can be visualized using Box-plots and smoothed densities. These trends can be visualized over several spatial clusters. The spatial clustering can be performed using Naive visual inspection or K-Means, both of which can be visualized for several cluster sizes.