Order of the National Green Tribunal in the matter of Laxmi Suiting & Others Vs. State of Rajasthan & Others dated 01/04/2016 regarding unlawful extraction of groundwater by industries in Jodhpur, Rajasthan.

A Team of CGWA (Central Ground Water Authority) shall visit Jodhpur and submit a comprehensive report as to which area, if any, where extraction of water would be necessary for maintaining hygiene and environment as well as the life of the people in Jodhpur and which parts of Jodhpur are critical or no extraction of ground water should be permitted.

Accurate estimation of the groundwater budget requires good estimate of flux across the boundary of a region. Different methods and techniques are available to estimate recharge to groundwater; however methods for estimation of flux across boundaries are not available. The present article represents a GISbased methodology to estimate the groundwater flow rate and volume of water flux across the boundary. Groundwater level data (pre-monsoon and postmonsoon) are used to derive detailed maps like flow direction, hydraulic gradient and velocity component perpendicular to the boundary.

BEIJING - Beijing has seen slower decline of underground water level thanks to the south-to-north water diversion project, according to the municipal water authority.

Subsidence caused by groundwater pumping in the Central Valley has been a problem for decades. Over the last few years, interferometric synthetic aperture radar (InSAR) has been used from satellites and aircraft to produce maps of subsidence with sensitivity of fractions of an inch.

Order of the National Green Tribunal (Principal Bench, New Delhi) in the matter of Legal Aid, National Green Tribunal Bar Association Vs. NCT of Delhi & Ors. And Raj Hans Bansal Vs. Ministry of Water Resources & Ors. dated 27/07/2015 regarding illegal tapping of groundwater, NCT, Delhi.

The study highlights the climatic water balance, drought assessment and agricultural potentiality of Uppar Odai sub-basin located in the Southern part of India, Tamil Nadu state. The average annual precipitation in the sub-basin is 625 mm, which is much lower than the state average rainfall (970 mm). It has been observed that the intensive agricultural practices and extensive groundwater mining lead to the groundwater decline in the sub-basin. Rainfall data were collected from 1971-2011 for five rain gauge stations.

Acute shortage of water supply for domestic and irrigation purposes in hard rock area is accentuated by occurrence of groundwater in limited quantity within sparsely distributed aquifers characterised with secondary porosity of finite areal extent. Tawarja river basin is in drought prone Latur district of India falling in basaltic Deccan Volcanic Province (DVP). which occupies half a million square km area.

Data from 11 000 public supply wells in 87 study areas were used to assess the quality of nearly all of the groundwater used for public supply in California. Two metrics were developed for quantifying groundwater quality: area with high concentrations (km2 or proportion) and equivalent-population relying upon groundwater with high concentrations (number of people or proportion).

Original Source

Multivariate statistical techniques, cluster and principal component analysis were applied to the data on groundwater quality of Suri I and II Blocks of Birbhum District, West Bengal, India, to extract principal factors corresponding to the different sources of variation in the hydrochemistry as well as the main controls on the hydrochemistry.

About one third of Earth's largest groundwater reserves are being rapidly depleted by human consumption, according to a new study led by the University of California, Irvine.