69. Winka, A. and 'Abed-Rabbo, A. Drinking water in the Bethlehem district, 1990.

The purpose of the study is to establish a data base of the chemical, physical and biological parameters for the municipal drinking water in the Bethlehem district. Fifty-seven sample sites were chosen in the Bethlehem, Bayt Jala, Bayt Sahour refugee camps and villages. the samples were taken over the course of a nine week cycle for nine months (wet and dry seasons). The wells (Bayt Fajjar and Herodian 2) were sampled weekly. The average and confidence level for the average for the parameters tested are:

-Total solids: 0.3550 +/- 0.0402 mg/l
-Alkalinity: 247.9 + /- 7.3 mg CaCO#/l
-Conductivity: 559.4 +/-9.39 umho/cm3
-Hardness: 114.9 +/-11.8 mg CaCO3/l
-Chlorine: 0.27+/-0.13 mg Cl2/l