**2.7 Analytical procedure**

Data analysis involves analytical methods of sorting, scrutinizing, processing and translating data into research findings based on the set objectives of research. Some of thesimple measurements were made on-site like temperature, pH, and conductivity, in direct contact with the water source in question. More complex

**Figure 3.** *Map of study area showing sampling points.*

measurements were made in a laboratory setting where water samples were collected, preserved, and analyzed in the laboratory. For the purpose of this study, only some properties were examined. These include pH, turbidity, color, odor, hardness, alkalinity, salinity, total dissolved solids (TDS), dissolved oxygen (DO) chloride (Cl), nitrate (NO<sup>3</sup> )/nitrite (NO<sup>2</sup> ), fluoride (F), iron (Fe), sulphate (SO4 <sup>2</sup>), manganese (Mn2+), fecal coliform and total fecal coliform.
