Reclaimed Water: Water that has received at least secondary treatment and basic disinfection and is reused after flowing out of a domestic wastewater treatment facility.

Regional Water Supply Plan: Detailed water supply plan developed by the District under Section 373.0361, F.S., providing an evaluation of available water supply and projected demands at the regional scale. The planning process anticipates and identifies future demand for 20 years and develops strategies to meet identified needs.

Regulation Schedule: A federally authorized set of operating criteria used by water managers to manage the water levels in a lake or reservoir.

Reservoir: A constructed or natural water body used for water storage.

Retrofitting: The replacement of existing water fixtures, appliances and devices with more efficient fixtures, appliances and devices for the purpose of conservation.

Reuse: The deliberate application of reclaimed water for a beneficial purpose. Criteria used to classify reuse projects are contained in Rule 62-610.810, F.A.C.

Reverse Osmosis (RO): A membrane process for desalting water using applied pressure to drive the feedwater (source water) through a semipermeable membrane.

Saline Water or Saltwater Intrusion: This occurs when more dense saline water moves laterally inland from the seacoast, or moves vertically upward, to replace fresher water in an aquifer.

Seawater: Water which has a sodium chloride (salt) concentration equal to or greater than 19,000 milligrams per liter.

Stage: Water level, measured as the height of a water surface above an established reference point.

Stormwater Treatment Area (STA): A large, constructed wetland designed to remove pollutants, particularly nutrients such as phosphorus, from stormwater runoff using natural processes.

South Florida Water Management District (SFWMD): A regional, governmental agency that oversees the water resources in the southern half of the state – 16 counties from Orlando to the Florida Keys.

It is the oldest and largest of the state’s five water management districts. The agency's mission is to manage and protect water resources of the region by balancing and improving water quality, flood control, natural systems and water supply. A key initiative is cleanup and restoration of the Everglades.