The USCG Water Science School has a chart on contaminants found in groundwater on their website that may have additional useful information.
To determine if and what type of filtration system you need, you must obtain a water analysis. If you have
Filters for the appropriate problems are determined as stated above by the issues. Once you know the issues to address, you can decide the filtration system. There are several different methods a water filtration system can use, and it may utilize more than one if necessary.
What is the difference between water softening and water filtration?
Water Softeners remove the hardness (minerals), whereas water filters remove a broad range of contaminants. These two systems can be combined.
What is a whole house water filtration system?
This is a system that is installed at the waters entry into the house. This system will allow you to turn on a fixture or appliance in your home and to get filtered water.
Installation will require turning off the water service main shutoff valve, cutting the pipe, and installing the filtration system and a bypass with a check valve. Since this system will interrupt your water usage activities, you should schedule this at a time when you can go without water for a few hours. We recommend that a professional perform this installation.
Note: All filters have a limited life and must be replaced periodically. Keep this in mind when selecting the water filtration system and for maintenance.
Special considerations for selecting your system are