020-6 Wyo. Code R. § 6-2
The following definitions supplement those definitions contained in Section 35-11-103 of the Wyoming Environmental Quality Act.
a. Colorado River Basin Salinity Control Forum - The organization composed of water quality and water resource representatives of the states of Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming, with the responsibility for developing salinity standards and criteria for the waters of the Colorado River Basin.
b. Total Dissolved Solids (Total Filterable Residue). Those organic and inorganic constitutents which pass through a standard 0.45um glass fiber filter and are stable after evaporation and drying to constant weight (+4%) at 180C. Total Dissolved Solids are reported as mg per liter.
c. Salinity the term used to report the total solids in water after all carbonates have been converted to oxides, all bromide and iodide have been replaced by chloride and all organic matter has been oxidized. It is numerically smaller than total dissolved solids and is usually reported as grams per kilogram or parts per thousand (0/00).
020-6 Wyo. Code R. § 6-2