The slurry of water and fine-grained waste rock material remaining after minerals have been removed in the mill concentrator and excess water has been recovered and returned to the mill concentrator.
The final disposal site for tailings generated in the milling circuit.
Wastewater treatment beyond the secondary or biological stage that includes the removal of nitrogen and phosphorus and a high percentage of suspended solids through chemical and mechanical means such as additional filtration, carbon adsorption, distillation and reverse osmosis
Total Quantity of Lost and Unaccounted for Water
Total quantity of water from any source, including reclaimed water, that enters an irrigation district’s or private water company’s irrigation distribution system during a calendar year less the total deliveries of water made by the irrigation district or private water company through its irrigation distribution system during the calendar year that are measured or estimated based on a generally accepted method of estimating water use.
A unit of survey in the U.S. Public Land Survey System that represents a piece of land that is bounded on the east and west sides by meridians approximately 6 miles apart.
Any facility, including cemeteries, golf courses, parks, schools, or common areas within housing developments, with a water-intensive landscape of at least 10 acres.
Type 1 non-irrigation grandfathered right
A non-irrigation grandfathered right associated with retired irrigated land in an active management area. A Type 1 non-irrigation right generally allows a rightholder to either withdraw or receive no more than three acre-feet of groundwater per acre per year for a non-irrigation use on the retired land. Type 1 non-irrigation rights may not be transferred to another location, although groundwater pumped from appurtenant areas may be transported to a new location for non-irrigation uses subject to certain restrictions.
Type 2 non-irrigation grandfathered right
A non-irrigation grandfathered right issued in an active management area based on groundwater non-irrigation uses from 1975 to 1979. Generally, Type 2 non-irrigation grandfathered rights equal the maximum amount of groundwater withdrawn and used for non-irrigation purposes in any one of the five years preceding June 12, 1980. Type 2 non-irrigation grandfathered rights may be transferred to new locations within the same active management area through either a sale or lease.