The operator in responsible charge of the wastewater treatment plant must be certified at a level equal to or higher than the plant classification. When the plant is operated on more than one daily shift, the lead operator of each shift must be certified no lower than one level below the plant classification. Table 4: Treatment Plant Classification Criteria. Treatment Plant Classification Criteria Treatment type Design flow MGD Classification 1 I ≤ 1 10 II ˃ ≤ Primary 10 20 III ˃ ≤ 20 IV ˃ Lagoon (Nonaerated) All I Lagoon (Aerated) 1 I ≤ 1 II ˃ Biofiltration 1 II ≤ 1 10 III ˃ ≤ 10 IV ˃ Extended aeration 5 II ≤ 5 III ˃ Activated sludge 1 II ≤ 1 10 III ˃ ≤ 10 IV ˃ SBR 1 II ≤ 1 10 III ˃ ≤ 10 IV ˃ Wetlands treatment 1 I ≤ 1 5 II ˃ ≤ 5 III ˃ Tertiary 5 III ≤ 5 IV ˃
The operator in responsible charge of the wastewater treatment plant must be certified at a level equal to or higher than the plant classification. When the plant is operated on more than one daily shift, the lead operator of each shift must be certified no lower than one level below the plant classification. Table 4: Treatment Plant Classification Criteria. Treatment Plant Classification Criteria Treatment type Design flow MGD Classification Primary ≤ 1 I ˃ 1 ≤ 10 II ˃ 10 ≤ 20 III ˃ 20 IV Lagoon (Nonaerated) All I Lagoon (Aerated) ≤ 1 I ˃ 1 II Biofiltration ≤ 1 II ˃ 1 ≤ 10 III ˃ 10 IV Extended aeration ≤ 5 II ˃ 5 III Activated sludge ≤ 1 II ˃ 1 ≤ 10 III ˃ 10 IV SBR ≤ 1 II ˃ 1 ≤ 10 III ˃ 10 IV Wetlands treatment ≤ 1 I ˃ 1 ≤ 5 II ˃ 5 III Tertiary ≤ 5 III ˃ 5 IV