CAPITAL WATER is responsible for the treatment of domestic wastewater in the Municipality of Callao, and for reuse of the treated wastewater for irrigation of parks and green spaces. The Municipality of Callao waters its parks and green spaces with the treated water from the plant using special trucks for irrigation, which come to the fill up water from the WWTP every day. This recycling process allows the release of drinking water for human consumption that was previously used for irrigation of green space.