Page 81 - Haryana Water Resources Atlas 2025

Ground Water Level Contours (As on June 2023)

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round Water level contours represent lines connecting points on the
ground surface that share the same elevation of the water level. Scale
GThese contours play a vital role in comprehending the movement Kms
0 12.5 25 50 75 100
and shape of Ground Water within an aquifer. Typically, Ground Water level
contours are established by measuring the water level depth at various
locations using monitoring wells or other Ground Water measurement
tools. This data is then utilized to generate a contour map illustrating the
elevations of the water level, with lines connecting points of equal elevation.
Ground Water level contour maps offer significant insights for diverse
purposes. They aid in understanding the movement of contaminants in
Ground Water, identifying suitable areas for well installation, and assessing
the potential for Ground Water recharge. It is critical to understand that
Ground Water level contours are dynamic and subject to change over time as
a result of both natural and man-made factors, such as shifting precipitation
patterns, Ground Water extraction, or modifications to land use. Regular
monitoring and updating of Ground Water level contour maps are necessary
to ensure their accuracy and usefulness in decision-making processes.
Ground Water level contours serve as a valuable tool for comprehending the
dynamics of Ground Water systems and formulating effective strategies for
the sustainable management of Ground Water resources. The depth to the
Ground Water level can be estimated using the equation below, which can
further be employed to create interpolated surfaces for contour generation.

Elevation of Water Level (EWL) = Elevation of Ground Surface
(RL) - Depth to Ground Water Level (WL)
The Elevation of Water Level (EWL) was utilized to create contours at
intervals of 5-10 meters, as depicted in Figure 43. These contours were
further employed to generate the Ground Water flow pattern. In the
northern part of the state, the predominant flow direction was observed to
be towards the south and southwest. However, the flow originating from the
Aravalli range exhibited a northeasterly direction.
Ground Water level contours find applications in various aspects of Ground
Water management. For instance, they can guide decisions regarding where
to implement recharge measures to benefit other areas. It is worth noting
that Ground Water movements play a role in causing waterlogging,
particularly in central Haryana, as most of the Ground Water flows towards
this region.

Figure 43. Ground Water Level Contours (As on June 2023)
Data Source-GWC, Haryana
Haryana Water Resources Atlas 63|