Ill. Admin. Code tit. 77 § 800.550
Current through Register Vol. 49, No. 2, January 10, 2025
Sewage collection systems shall be installed with a minimum slope of one percent. Sewage lines shall be a minimum of four inches inside diameter. In recreational areas operated during freezing weather, sewers shall be installed below the established frost line.
Ill. Admin. Code tit. 77, § 800.550
Amended at 10 Ill. Reg. 11076, effective July 1, 1986