Water treatment services take place at a very large and small scale. On a larger scale, water treatment services involve filtering out unnecessary chemicals and toxins from a local area water supply. All major U.S. cities employ water treatment service plants to make water drinkable for residents. Many major water sources are rivers and streams that can get filled with pollution. This isn't the only health concern when it comes to water supplies, though. Literally tons of toxins can contaminate water, including dead animals, dirt, sewage, and a host of other unwanted materials. Water that travels a long distance from its source to its final destination risks increased contamination with every mile, so it's easy to see why water must be treated before it can be used for public consumption. Well water may have to be treated if the well becomes tainted in some way. Companies that bottle water for retail sale or delivery often use water treatment services to improve the quality of their products. There are different kinds of water treatment services. Your local treatment companies probably perform a variety of services for their clients. Water that is too acidic must undergo a neutralization process to remove the sour taste and whatever chemical that's causing it. Iron filtration removes sediment to improve taste and texture. Purification is usually performed for taste reasons, but also to remove potentially harmful chemicals such as sulfates. Local water treatment services often correct water pressure problems along with the other services they provide.