GATE ES · 2025 · ES
Question 35: Groundwater Resources
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Question 35
ESNAT1 markNeeds review
An unconfined aquifer of areal extent 20 km × 20 km has hydraulic conductivity of 4 m/day, porosity of 0.32, and storage coefficient (specific yield) of 0.18. If the initial saturated thickness of the aquifer is 30 m, and 4×10⁸ m³ of water is extracted from the aquifer, then the decline in the saturated thickness is ____________ m. (rounded off to two decimal places)
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2025ES
GATE ES 2025 · Paper 1
Environmental Science and Engineering · Original paper archive
- Section
- Environmental Science and Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 1 mark
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