DSS (Distribution System Small) - (A) serves a population less than 3,301, and (B) has no components other than (1) pressure or (2) storage tanks. A nontransient noncommunity system serving a population less than 501 utilizing no treatment other than ion exchange or inline filtration is a DSS system.Requirements: Must meet all the following: A.Education: All grades require a minimum of high school or its equivalent B.Experience: Hands-on operation in the class system applied for, as follows: DSS - 1 year, DSM -1 year, DSL - 1 year, WT1 -1 year, WT2 - 1 year, WT3 - 2 years, WT4 - 2 years, WT5 - 3 years
