الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The specific capacity ranges between 7.81m2/h in (low productivity) and 37.5 m2/day (high productivity). The well efficiency ranged between 29.59% at and 86.4%.
The hydrological cross section of the study area showed that there is a
hydraulic connection between the Pleistocene aquifer and Miocene aquifer
(Moghra) through the existing faults.
Seepage and infiltration from the newly reclaimed lands as well as from the main irrigation canals and its subsidiary channels represent other effective sources of recharge.Regional natural discharge areas mainly occur in the northwest portions of the study area. Wadi El Natrun depression acts as a natural discharge area, generally for all the aquifer systems in the west of the Nile Delta area. Also, natural discharge occurs through evapotranspiration and lateral flow from one aquifer to other ones, in addition to the lateral flow toward Wadi El Farigh depression at the northwest area.
Evaluation of the collected samples for drinking purpose it was found that
the analytical results exhabit a higher concentration of total dissolved solids
(21%), chloride (24%), and total hardness (30%), calcium (9%) and sodium
(36.4%) than the standard figures given by WHO (2011).
Suitability of groundwater for irrigation was evaluated through estimation of the sodium adsorption ratio (SAR) content which varies from 2 to 20 meq/l with low and medium sodium hazard that safe to irrigation uses. 84.85% of sodium adsorption ratios for the groundwater samples in the study area are less than 10 indicating excellent quality for irrigation Samples fall in the excellent (S1) category while 15.15% Sodium adsorption ratios fall within the range 10-18 indicating good quality.
The soluble sodium percent (SSP) is used to evaluate sodium hazard.
According to U.S. Salinity Laboratory Staff groundwater samples has SSP less than 75% suggesting excellent water which can be used for irrigation without any troubles.
According to U.S. Salinity Laboratory Staff, the first class has SSP includes 97% of samples are excellent water that can be used for irrigation without any troubles.
It was detected that Residual Sodium Carbonate (RSC) represents 94% of groundwater samples appear suitable while 3% of the samples fall within the unsuitable category and 3% of them represent medium suitable for irrigation purposes.
Evaluation of groundwater samples for construction purposes proved that all the water samples have pH values not aggressive to reinforced concrete except two samples appear slightly aggressive water to reinforced concrete.