3745-82-02. Secondary maximum contaminant levels

The secondary maximum contaminant levels for public water systems are as follows

Contaminant Level

Aluminum*. . . . . . . . . . . . . . . . . . . . . 0.05 to 0.2 mg/L

Chloride . . . . . . . . . . . . . . . . . . . . . 250 mg/L

Color . . . . . . . . . . . . . . . . . . . . . . 15 color units

Corrosivity . . . . . . . . . . . . . . . . . . . non-corrosive

Fluoride . . . . . . . . . . . . . . . . . . . . . 2.0 mg/L

Foaming Agents . . . . . . . . . . . . . . . . . . 0.5 mg/L

Iron . . . . . . . . . . . . . . . . . . . . . . . 0.3 mg/L

Manganese . . . . . . . . . . . . . . . . . . . . 0.05 mg/L

Odor . . . . . . . . . . . . . . . . . . . . . . . 3 threshold odor number

pH . . . . . . . . . . . . . . . . . . . . . . . . 7.0 - 10.5

Silver . . . . . . . . . . . . . . . . . . . . . . 0.1 mg/L

Sulfate . . . . . . . . . . . . . . . . . . . . . 250 mg/L

Total dissolved solids (TDS) . . . . . . . . . . . 500 mg/L

Zinc . . . . . . . . . . . . . . . . . . . . . . . 5 mg/L

*The secondary maximum contaminant level for aluminum is a range, with the precise level applicable to each public water system to be determined by the director.

Eff 11-26-80; 3-1-88; 9-13-93
Rule promulgated under: RC Chapter 119.
Rule amplifies: RC 6109.04