TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
PART 302 WATER QUALITY STANDARDS
SECTION 302.209 FECAL COLIFORM


 

Section 302.209  Fecal Coliform

 

a)         During the months May through October, based on a minimum of five samples taken over not more than a 30 day period, fecal coliform (STORET number 31616) shall not exceed a geometric mean of 200 per 100 ml, nor shall more than 10% of the samples during any 30 day period exceed 400 per 100 ml in protected waters.  Protected waters are defined as waters which, due to natural characteristics, aesthetic value or environmental significance are deserving of protection from pathogenic organisms.  Protected waters will meet one or both of the following conditions:

 

1)         presently support or have the physical characteristics to support primary contact;

 

2)         flow through or adjacent to parks or residential areas.

 

b)         Waters unsuited to support primary contact uses because of physical, hydrologic or geographic configuration and are located in areas unlikely to be frequented by the public on a routine basis as determined by the Agency at 35 Ill. Adm. Code 309.Subpart A, are exempt from this standard.

 

c)         The Agency shall apply this rule pursuant to 35 Ill. Adm. Code 304.121.

 

(Source:  Amended at 12 Ill. Reg. 12082, effective July 11, 1988)