Ill. Admin. Code tit. 35 § 304.124

Current through Register Vol. 48, No. 44, November 1, 2024
Section 304.124 - Additional Contaminants
a) A person must not cause or allow the concentration of the following constituents in any effluent to exceed the following levels, subject to the averaging rules in Section 304.104(a).

CONSTITUENT

CONCENTRATION mg/L

Arsenic

0.25

Barium

2.0

Cadmium

0.15

Chromium (hexavalent)

0.1

Chromium (total)

1.0

Copper

0.5

Cyanide

0.10

Fluoride

15.0

Iron (total)

2.0

Lead

0.2

Manganese

1.0

Nickel

1.0

Oils (hexane soluble or equivalent)

15.0

Phenols

0.3

Silver

0.1

Zinc

1.0

Total Suspended Solids

(From sources other than those covered by Section 304.120)

15.0

b) Discharges of hexavalent chromium are subject to the averaging rule of Section 304.104 modified as follows: monthly averages must not exceed 0.1 mg/L; daily composites must not exceed 0.3 mg/L; and, grab samples must not exceed 1.0 mg/L.
c) Oil may be analytically separated into polar and nonpolar components. If separated, neither of the components may exceed 15 mg/L (i.e. 15 mg/L polar materials and 15 mg/L nonpolar materials).
d) Unless otherwise indicated, concentrations refer to the total amount of the constituent present in all phases, whether solid, suspended or dissolved, elemental or combined, including all oxidation states. Where constituents are commonly measured as other than total, the word "total" is inserted for clarity.
e) The following table is provided for cross-referencing purposes:

CONSTITUENT

SECTIONS

Ammonia nitrogen

304.301, 304.122

Bacteria

304.121

Biochemical Oxygen Demand

304.120

Deoxygenating Wastes

304.120

Mercury

304.126

Nitrogen, ammonia

304.301, 304.122

pH

304.125

Phosphorus

304.123

Ill. Admin. Code tit. 35, § 304.124

Amended in R88-1 at 13 Ill. Reg. 5976, effective April 18, 1989

Amended at 47 Ill. Reg. 4601, effective 3/23/2023