Ground Water Year Book is prepared annually by CGWB depicting changes in ground water regime of the country through different seasons. It is an effort to obtain information on ground water levels through representative sampling. The important attributes of ground water regime monitoring are ground water level.
Ground Water Resources Assessment is carried out at periodical intervals jointly by State Ground Water Departments and Central Ground Water Board under the overall supervision of the State Level Committee on Ground Water Assessment. Previous such joint exercises were carried out in 1980, 1995 and 2004 and 2009.
The report on `Status of Ground Water Quality in Coastal Aquifers of India’ is the outcome of an attempt at compilation and synthesis of available scientific data on the ground water quality in the coastal aquifers of India, generated through years of scientific studies carried out by Central Ground Water Board and many other Central and State A
The report ‘A Concept Note on Geogenic Contamination of Ground Water In India with a Special note on Nitrate’ intends to serve as a national compilation of all relevant information on major geogenic contaminants reported in India.
Sustainable development and management of ground water resources necessitates assessment of availability of ground water, its existing utilisation and balance resources for future utilisation. In India, ground water resources estimation at a Country/ State level is being carried out at periodical intervals.
Ground water levels are being measured four times a year during January, April/ May, August and November. The regime monitoring started in the year 1969 by Central Ground Water Board. At present a network of 15640 observation wells located all over the country is being monitored.
Contamination of drinking water sources by sewage can occur from raw sewage overflow, septic tanks, leaking sewer lines, land application of sludge and partially treated waste water. Sewage itself is a complex mixture and can contain many types of contaminants.
In this latest report CGWB summarizes various aspects of ground water quality in shallow aquifers in the country with special reference to six parameters viz. salinity, chloride, arsenic, fluoride, iron and nitrate.
This paper by CGWB on effective management of available ground water resources calls for an integrated approach, combining both supply side and demand side measures. Says that urgent action is needed to augment the ground water in the water stressed areas.