*Management of Hard Rock Basaltic Aquifer through Aquifer Mapping: A Case Study of Nashik… DOI: http://dx.doi.org/10.5772/intechopen.111644*

(Jaidar, Kalwan block). The rising trend of more than 0.2 m/year is observed in parts of the Kalwan, Niphad, and Nasik blocks covering an area of 3456.13 km<sup>2</sup> . The falling trend of more than 0.2 m/year is observed in northern peripheral areas especially east of Surgana and western peripheral areas near Peint covering an area of 2832.01 km<sup>2</sup> (**Figure 19**). During post-monsoon, a rise in water level trend has been recorded at 145 stations and it ranges between 0.0006 m/year (PimpalgaonMor, Igatpuri block) and 1.01 m/year (Chirai, Baglan block), while the falling trend was observed in

**Figure 19.** *Pre-monsoon decadal water level trend (2012-2021).*

36 stations varying from 0.0006 (Ankai, Yevla block) to 0.33 m/year (Sakur, Igatpuri block). The rising trend of more than 0.2 m/year is observed near Deola, Kalwan, Chandwad, and Niphad covering an area of 4938.42 km<sup>2</sup> . Whereas a falling trend of more than 0.2 m/year is observed in a limited area of 216.39 km<sup>2</sup> in the eastern part of Malegaon and the northern part of Igatpuri (**Figure 20**). The rising water level trend indicates that the groundwater recharge during the period is adequate considering the storage capacity of the aquifer and is more than withdrawal, whereas falling trend indicates that the groundwater withdrawal is more than the recharge.

**Figure 20.** *Post-monsoon decadal water level trend (2012-2021).*

*Management of Hard Rock Basaltic Aquifer through Aquifer Mapping: A Case Study of Nashik… DOI: http://dx.doi.org/10.5772/intechopen.111644*


#### **Table 2.**

*Aquifer characteristics of Nashik district.*

Based on groundwater exploration, depth to water levels, groundwater quality, and aquifer-wise characteristics are given in **Table 2** and the major aquifer map is presented in **Figure 3**.
