Ill. Admin. Code tit. 35, § 302.306 - Fecal Coliform
Notwithstanding the provisions of Section 302.209, at no time shall the geometric mean, based on a minimum of five samples taken within a 30-day period, of fecal coliform exceed 2000 per 100 ml.
Notes
Added at 12 Ill. Reg. 12082, effective July 11, 1988
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