Effect of Residential Booster Pumps on Water Quality?

I'm interested in doing research on the effect of residential booster pumps on water quality, especially in developing countries where there are no regulations for their use in urban areas. I have read that most countries, especially in developed countries, have regulations on where and how these pumps should be installed. How do booster pumps impact water quality in residential areas?  How should the pump be installed for best results?