Clean water is essential for all life. We rely on it for cooking, drinking, bathing, cooling off on a hot day and, yes, even for removing our bathroom waste streams. We often don’t think about where our waste goes when we flush the toilet, and many would rather not think about its fate. However, 80 percent of all New Hampshire residents depend on on-site treatment for their wastewater. This means that their wastewater undergoes treatment in their septic tank before it is discharged into the ground to the leaching field for further treatment, before becoming part of the groundwater.