Groundwater is a source of groundwater found in cracks and spaces in soil, sand and rock. Groundwater is now an increasingly important source of water.

Groundwater is also exposed to various sources of pollution that have the potential to affect its beneficial uses.

To conserve groundwater resources, the Department of Environment (DOE), under the 11th Malaysia Plan has conducted a study to develop a National Groundwater Quality Standard (the study was completed in 2017).

A national groundwater quality monitoring and reporting network program was started in late 1997 by the Department of the Environment.

The establishment of a groundwater monitoring network program is to improve the quality of a comprehensive and comprehensive groundwater. In addition, it will also improve the level and ability of the quality of life of the people through proactive measures in controlling the causes of groundwater pollution through accurate reporting of groundwater quality status.

The construction of groundwater monitoring stations is according to the specific land use.