Journal of Water Resource and Protection, 2011, 3, 275-282 doi:10.4236/jwarp.2011.35035 Published Online May 2011 (http://www.SciRP.org/journal/jwarp) Copyright © 2011 SciRes. JWARP Geotechnical Parameters Impact on Artificial Ground Water Recharging Technique for Urban Centers Pratima Patel 1 , Mahesh Desai 2 , Jatin Desai 3 1 Civil Engineering Department, Sarvajanik College of Engineering & Technology, Surat, India 2 Applied Mechanics Department, Sardar Vallabhbhai National Institute of Technology, Surat, India 3 Maliba Institute of Technology, Surat, India E-mail: pratima13p@gmail.com Received January 27, 2011; revised March 4, 2011; accepted April 7, 2011 Abstract Water scarcity is a serious problem throughout the world for both urban & rural community. Urban centers in India are facing an ironical situation of water scarcity today. This paper includes an Analytical solution, Numerical modeling, Empirical approaches, In-situ test results to predict recharge (rate) mound of the ground-water and capacity of recharge well which is essential for the proper management of suitable artifi- cial ground-water recharge systems to maintain water balance and stop salt water intrusion. Authors have derived analytical equation for predicting growth as well as decline of the ground-water mound depending on the intensity of recharge rate q r with different value of permeability k, depth of pervious strata H and diame- ter of well d, also studying the effects of variation in the geotechnical parameters on water-table fluctuations. In this paper to study the impact of numerical modeling using quadratic equation for unconfined aquifer base on rainfall intensity P and a change in saturated thickness H with variation in piezometric level. Empirical approaches are for evaluation of correct value of k of an undercharged unconfined aquifer with drawdown s 0 , influence zone L, recharge rate q r . In-situ test results give actual correlation between value of recharging rate of well and permeability on field. Authors have verified recharging rate of installed well from all approaches. A result obtained from the various field case studies gives the validation of the derived equation. Scientific quality measures of aquifer water are also recorded. Keywords: Unconfined Aquifer, Well Determinant – Recharge Rate & Hydraulic Conductivity, Geometrical Properties of Aquifer, Pre Cast Octagonal Recharge Well 1. Introduction Scarcity of water resources, pollution and climate change will be the major emerging issues in the next century. Due to depletion of water table, scanty and uneven pat- tern of rainfall, water scarcity is faced by arid and semi-arid district of Gujarat State. The runoff for roof top is computed based on average rainfall intensity. In addition to irregularity of rainfall, the change in life style, population explosion, rapid industrialization, rapid ur- banization, irrigated agriculture and inefficient water management plan are the main factor which has lead to present water shortage problem. Recharge is a critical parameter for understanding, modeling and protecting groundwater systems from overexploitation and con- tamination. Adopting the concept of sustainability and conservation of water resources using artificial recharge technique can help to cope with the global water short- age. Adequate space for surface storage is not available in urban areas, water levels are deep enough to accommo- date additional rainwater to recharge the aquifers, roof- top and runoff rainwater harvesting (storm water reuse) is ideal solution to solve the water supply problems for better tomorrow. In this article simple methodology of recharging is highlighted. The collection of roof terrace water into detention tank and then recharges the uncon- fined aquifer through designed recharge well. Authors have derived general analytical equations for evaluation of recharging capacity of well with predominant geo- technical parameters like permeability of aquifer soil, depth of water table, depth of pervious strata, porosity