ABSTRACT
There are two phases involved in the collection and interpretation of water quality data. The first is the collection and analysis phase, where due attention should be given to replication and analytical quality assurance. The second is where the analyses are checked for possible errors and inconsistencies and subjected to various interpretive procedures to try and solve the problem at hand. Water quality data may be interpreted on the basis of both individual analyses and sets of analyses from one sampling site or different sampling sites in an area or aquifer being examined. Duplicate Comparison is generally recommended that duplicate analyses be run on 10% of the samples. The objective of examining the quality assurance data is to obtain an estimate of the precision and accuracy of the data. Absolute value of concentrations of the different water constituents is of marginal use in the interpretation of water quality data.
