by Mehaysen Ahmed Mahasneh
Original Research
The aquifer is composed of rock units overlaying the basement complex of the Precambrian ERA are subdivided into two groups: the upper group is called Khreim group, and the lower group is the Rum group. These formations are Saleb, Burj, Umm Ishrin, Disi, and Umm Sahm formations. The rock formations constituting the Rum group compose the Rum aquifer system, which dominates the fresh water aquifer system in southern Jordan which the aquifer system in southern Jordan which the rock formations constituting the Khreim group represent the confining layer where Sahl Suwaan formation occur. The Disi aquifer, which is the main source of water for Mudawara Region, is one of the most permeable and productive Sandstone aquifers in the Jordan. The groundwater flows from the Saudi Arabia in the South towards North East Jordan in central Jordan. The Rum aquifer system represents an unconfined aquifer system in the area in which no deposition of Khreim group where Khreim group overlies the Rum sandstone deposits. The most important feature of the Rum aquifer is its homogeneity in the grain size ranges between 0.25mm to 0.51mm sand, the uniformity coefficient ranges between 1.36 to 2.19 at different formations depth between 330m to 520m, medium to fine and medium to coarse uniformly graded sand of different formations. The large transmissivity of the Disi aquifer is indicated between 541 to 656 m2/day of yielding wells and the storage coefficient in the range 0.0199 to 0.0260, the specific capacity in range 5.9 to 7.11 l /s /m. The obtained results were found to be corresponded to the unconfined nature of in the encountered aquifers in A1, A2, A3, A4, A5, A6, A7, A8, and B1, B2, B3, B4 wells, and this is clearly indicated in the storage coefficient (specific yield) of this aquifer in these wells. The results of water sample analyses show water quality is excellent and acceptable for drinking purposes, according to the Jordanian water standard 2008, and EU drinking water standard 1998.
American Journal of Water Resources. 2017, 5(5), 152-161. DOI: 10.12691/ajwr-5-5-3
Pub. Date: December 16, 2017
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by Pradip Kumar Biswas, Nasir Uddin, Sha Alam, Tamjid -Us-Sakib, Sharmin Sultana and Tofayal Ahmed
Original Research
This paper discusses an integrated approach of pollution indices techniques to assess the intensity of heavy metal pollution in irrigation and drinking water systems discharged from coal mining in Bangladesh. Mn, Fe, Cd and Pb levels in most of the water samples exceed the Bangladesh and international standards. The heavy metal pollution index (HPI), heavy metal evaluation index (HEI) and degree of contamination (Cd) schemes indicate that the mine drainage/irrigation waters and the adjoining groundwaters are highly contaminated. The groundwater system in the vicinity of the coal mine site is also heavily polluted by anthropogenic sources. The pollution status of irrigation and drinking water systems in the study area are of great environmental and health concerns.
American Journal of Water Resources. 2017, 5(5), 146-151. DOI: 10.12691/ajwr-5-5-2
Pub. Date: December 11, 2017
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by M. Alsawalha
Original Research
The focus of this paper is not only on performing laboratory water tests, but also on correlating the obtained results for drinking water samples with the statistical quality control calculations. For this objective various physico-chemical parameters of domestic drinking water were measured, water samples that were collected from Jubail city, mainly from two different areas (Al Huwailat and Jalmudah). The revealed results were correlated with the standard specification (s) outlined by the World Health Organization (WHO). It was found that tested parameters were below the permissible limit stipulated by WHO, which indicates the high quality of water provided in Jubail Industrial City. In addition, the results from the applied research were statistically evaluated by the One-Way analysis of variance (ANOVA) to compare the means of two analysed groups. It was concluded that Ftest for all parameters was less than Fcritical, which proves that difference being analyzed is statistically significant at the confidential level 95%. Statically this leads us to fact that water quality of the studied areas is suitable for domestic purposes.
American Journal of Water Resources. 2017, 5(5), 142-145. DOI: 10.12691/ajwr-5-5-1
Pub. Date: December 02, 2017
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