Recycled or reclaimed water
Reclaimed water, sometimes called recycled water, is former waste water (sewage) that has been treated to remove solids and certain impurities, and then allowed to recharge the aquifer rather than being discharged to surface water. This recharging is often done by using the treated waste water for irrigation. In most locations, it is only intended to be used for non-potable uses, such as irrigation, dust control, and fire suppression, and there is controversy about possible health and environmental effects for those uses. In some locations, including Singapore and California?s Orange County, it is given more advanced treatment and is used indirectly for drinking.