The local water feature I choose to take a look at are the water filtration plants in Maryland. The main purpose of this plant is to take all the waste water from communities around Maryland and filter and give back to the residents for reuse. Essentially, as water travels over the surface of the land either through rain or storm drains, it dissolves naturally-occurring minerals and can pick up substances resulting from the presence of animals or from human activity. These contaminants could consist of branches, septic tanks, and even wild stock. The filtration plants are able to take all the contaminants out of the water using processes such as: chlorination, coagulation/flocculation, sedimentation, filtration, fluoridation, and pH adjustment. Accepted standards require the finished water to be free of all organisms of a pathogenic nature, all the while having limitations on the amount of chemicals in the finished water which are considered harmful or otherwise undesirable. This is a very important system for our daily lives, because they are able to take the countless gallons of water we use in such simple tasks as going to the restroom or even washing dishes, and make it drinkable if necessary. Without this system, the availability of clean water in our lives would be a luxury.