Section 406.207  Control of Discharge Waters

The Agency must consider the following practices to determine whether an operator is controlling and treating waters containing elevated levels of total dissolved solids, chloride, or sulfate discharged from the site:

a)         Regulating discharges when other control methods are insufficient and chemical treatment is economically unfeasible, including:

1)         Regulating the flow of discharges high in total dissolved solids according to fluctuating or intermittent stream flows so that the  total dissolved solids concentration remains within established water quality standards; or

2)         Regulating the flow or fluctuation of receiving streams by timely discharge of water from existing impoundments that have suitable discharge control structures.

b)         Rerouting over economically feasible distances, involving collecting discharges and conveying them to more suitable discharge points, such as large holding ponds located adjacent to more suitable receiving streams where dilution or water quality is better.

(Source:  Amended at 43 Ill. Reg. 11620, effective September 25, 2019)