Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 370 - ILLINOIS RECOMMENDED STANDARDS FOR SEWAGE WORKS
Subpart G - SETTLING
Section 370.700 - General Considerations

Universal Citation: 35 IL Admin Code ยง 370.700

Current through Register Vol. 48, No. 12, March 22, 2024

a) Number of Units

Multiple units capable of independent operation are desirable and shall be provided in all plants where design average flows exceed 100,000 gallons per day. Plants not having multiple units shall include other provisions to assure continuity of treatment.

b) Arrangement

Settling tanks shall be arranged in accordance with Sections 370.520(e) and 370.710(g).

c) Flow Distribution

Effective flow splitting devices and control appurtenances shall be provided to insure proper organic and hydraulic proportion of flow to each unit. Refer to Section 370.520(f).

d) Tank Configuration

Consideration should be given to the probable flow pattern in the selection of tank size and shape, and inlet and outlet type and location.

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