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The final DRASTIC (Original) values have been grouped together into low, moderate, and high pollution potential classes. These classes represent the relative pollution potential within the study area. The vulnerability map shows approximately more than 69.18 % of the area is classified as having low pollution potential with DRASTIC index values range between 65-96. The No vulnerability DRASTIC index values range between 33-64 and it represent are area of 0.98%. 29.61 % is classified as having moderate pollution potential within DRASTIC index values range of 97-128. and 0.22 % of the total area is classified as having a High pollution potential with DRASTIC index values ranging between 129-160. The DRASTIC Modified Lineament density values represent the relative pollution potential within the study area. The vulnerability map shows approximately more than 87.03 % of the area is classified as having Low pollution potential with DRASTIC Modified Lineament density index values range between 76-122.The No vulnerability DRASTIC Modified Lineament density index values range between 29-75 is classified about 5.13%. 7.83 % is classified as having Moderate pollution potential within DRASTIC index values range between 123-169. 0.01 % is classified as having a High pollution potential within DRASTIC Modified Lineament density index values range between 170-216. The DRASTIC Modified risk assessment MD(i) values represent the relative pollution potential within the study area. The vulnerability map shows approximately more than 70.99 % of the area is classified as having Low pollution potential with DRASTIC MD(i) values range between 69-108, The No vulnerability DRASTIC MD(i) values range between 29-68 is classified about 0.55% and 28.35 % is classified as having Moderate pollution potential within DRASTIC MD(i) values range between 109-148.and High vulnerability DRASTIC MD(i) values range between 149-188 is classified about 0.11% .
The final DRASTIC (DI+DL+MD) represent the relative pollution potential within the study area. The vulnerability map shows approximately more than 89.66 % of the area is classified as having Low pollution potential with final DRASTIC values range between 83-131. The No vulnerability final DRASTIC values range between 34-82 is classified about 5.95% and 4.36 % is classified as having Moderate pollution potential within final DRASTIC values range between 132-180.and High vulnerability final DRASTIC values range between 181-229 is classified about 0.03% . Water samples from 54 wells were collected in April 2007. There are about 41 wells occurred in the region with low risk, which has the highest concentration of nitrate in the region (60) mg / L in the well No. (AL2573) However, the lowest concentration (5.8) mg / L were present in the well No. (AL1392) and the average of nitrate in these wells is approximately 31 mg / L and 7 wells occurred in the region with moderate risk, which has the highest concentration of nitrate in the region (61.8) mg / L in the well No. (AL2691) However, the lowest concentration (3.5) mg / L were present in the well No. (AL2032) and the average of nitrate in these wells is approximately 42.1 mg / L. 4 wells occurred in the region with moderate risk, which has the highest concentration of nitrate in the region (107.2) mg / L in the well No. (AL2690) However, the lowest concentration (81) mg / L were present in the well No. (AL1843) and the average of nitrate in these wells is approximately 97.7 mg / L. The multi element analyzed about 13 (AL, V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd, Pb, Fe, Br) determination from the Inductivity Couple plasma (ICP) technique and then compared with standard calibration curve. Results showed that 8 elements, there was no concentration in the samples they are (AL, V, Ni, Cu, Zn, Cd, Fe, Br),There was a concentration of the following elements (Pb, Co, Cr, Mn, AS) with varying degrees. While the concentration of the elements (Co, Cr, Mn) within the limit by the World Health Organization and the Jordanian standard of drinking groundwater.
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