The fulfillment of human daily needs cannot be separated from water. The water most used by the community is ground water. One of the factors that can affect water quality is the depth of the water source. The purpose of this study was to analyze the effect of soil height and well depth on the temperature and pH of well water in Blitar Regency. The data was taken from 4 sub-districts in Blitar Regency, namely Ponggok, Nglegok Kesamben, and Selorejo. The characteristics of the pH of the water have an average of 6.7 and a water temperature of 23.43⁰C. If the depth of the well is increased by 1 meter, the pH of the water will increase by 0.1177 units. If the depth of the well is increased by 1 meter, the water temperature will increase by 0.126⁰C. Based on the results of the simultaneous test, it is known that the depth of the well and the height of the soil have a significant effect on water pH and water temperature. Based on the results of the partial test, it is known that the depth of the well has no significant effect on water pH and water temperature. However, the height of the soil has a significant effect on water pH and water temperature. Based on the results of the model goodness test, it can be seen that the proportion of water pH variability can be explained by the variable depth of the well and the height of the soil by 36.03% and the remaining 63.97% is influenced by other variables outside the model and the proportion of water temperature variability can be explained by the variable depth of the well and the ground height is 92.58% and the remaining 7.42% is influenced by other variables outside the model.