Surface water always present less quantity of TDS as compared to ground water
which affects the taste of ground water
Observed values ranged between 0.40 to 1.42 ppm in drain water and 0.30 to 1.33 ppm in surrounding ground water
. Iron was observed well above the given standard levels of PEPA and WHO (less than 0.03 ppm) in ground water
of city area showing that waste water from drainage channels was affecting the ground water
resources of study area in terms of higher iron contamination through infiltration.
In northern parts of the district including Murarai I, Murarai II, Nalhati I, Nalhati II potential yield is high (25 to 40 lit./sec.) but ground water
table depth is significantly high.
It is a tool to control ground water
infiltration into sewer system piping, which came into existence about 50 years ago.
Tomer wants to learn more about this tradeoff between phosphorus and nitrate in shallow ground water
, how often it occurs, and what controls it.
This ground water
is the potable water supply for more than 500,000 people in the Coeur d'Alene/Post Falls/Spokane Valley/Spokane metropolitan area.
The ground water
, waste water sludge and the sewage water samples each were collected from the selected sites, as per the standard procedures (APHA AWWA WPCF 1998).
"It is not known if contamination of shallow ground water
in urban areas will reach deeper aquifers that are generally used for supplying drinking water," said lead researcher Michael Moran.
The Finnish ground water
levels have been exceptionally low after two unusually dry summers.
The most frequently detected pesticides in the urban ground water
were atrazine and its degradation products (16 samples), dieldrin (7 samples), and simazine (6 samples).
The paper assesses the on-farm financial gains for rice-growing farms through different modes of irrigation and compares them with conjunctive use of surface and ground water
. The data used in this study was collected from 544 farms located in the Rechna Doab.
The reduction in the quantity of clean water available, established thanks to new calculation methods, is due to pollution of the upper layers of the ground water
table by nitrates and pesticides and also over-consumption, especially in the country's major cities, the report says.