Although the United States has developed clean water systems in urban and suburban areas, there still remains well over 15 million people who receive their clean water from a private well. Private wells are intricately engineered and have been improved in functionality over the course of time. Obtaining water through a well brings a whole new set of water contaminants to the forefront of the purification process. Most well owners don't worry about chemicals such as chlorine, ammonia or aluminum being introduced to their water supply as those receiving city water do (Read more on City Water Here). However, well owners must filter out many organic particles, bacteria and man-made pesticides in order to maintain clean water for their homes. An important process to understand is how water gets to our private wells. By following the flow of water to private wells we can understand exactly how water must be treated to achieve pure and safe drinking water.