The present study aimed at determining seasonal variation of iron concentration in the ground water and surface water of Eloor, an industrial belt in the Ernakulam district of Kerala.

Naturally occurring fluoride has been detected in ground water in the Sadayampatti village. The ground water is the major source of drinking and irrigation of this area. The different water samples were collected from this region and analyzed fluoride and various physico-chemical parameters.

The paper presents studies regarding the pollution of the groundwater in Jagadalpur. The water quality parameters viz pH, electrical conductivity(EC),Turbidity, Total dissolved salt (TDS), Sodium(Na), potassium(K), calcium(Ca), chloride(Cl), sulphate(SO4 -2), Carbonate(CO3), Bicarbonate (HCO3),fluoride (F- ),Total hardness(TH),dissolved oxygen(DO), iron(Fe) were analysed. The result shows that the ground water from some sampling sites is within permissible limit according WHO.

The concern of Hegde and Subhash Chandra about the environment and cost economics of river diversion schemes is
commendable; however, given the limitations of the proposals recommended by the authors, the river diversion schemes
could be inevitable for the reasons mentioned in this note. In addition, it is pertinent to look at the water problem from
a river basin perspective where better options with long-term perspectives can be searched to manage the water crisis of
Bangalore city.

The debate surrounding the safety of shale gas development in the Appalachian Basin has generated increased awareness of drinking water quality in rural communities. Concerns include the potential for migration of stray gas, metal-rich formation brines, and hydraulic fracturing and/or flowback fluids to drinking water aquifers. A critical question common to these environmental risks is the hydraulic connectivity between the shale gas formations and the overlying shallow drinking water aquifers.