Water pollution is currently a crucial issue, as water resources are highly polluted and contaminated. Periodic analysis should be conducted to monitor the standard of water quality, in order to meet requirements set by water regulatory agencies. This precautionary measure can help to prevent future water scarcity problems. This book illustrates methods of water quality parameter analysis, providing instant and accurate results at a glance. This book also provides knowledge for chemical and environmental engineering students on appropriate sampling, preservation, storage, and analytical methods for testing the water quality parameters used in the Water Quality Index calculation. The topics that are covered in this book are: (1) Site Investigation and (2) Analysis Methods for Water Quality Index Parameters. The primary objective of this book is to make the water analyst’s task easier, as it contains systematic workflows for the analysis of each parameter. The analysis methods have been simplified through the use of illustrations. This handy book provides a quick reference guide to help every analyst produce high-quality data.