- a) The particular type of treatment specified for the level of certification sought, and general questions on units of treatment of lower and higher classifications.
b) Laboratory techniques and interpretation;
- c) National Pollutant Discharge Elimination System (NPDES) permit requirements;
- d) Mathematics;
- e) Collection systems;
- f) Safety; and
- g) Administration/ management/ recordkeeping.
The Class 1 through 4 examinations will include, but not be limited to, questions on:
(Source: Added at 43 Ill. Reg. 5203, effective July 1, 2019)