- a) As of January 1, 2014, the effluent from any new, repaired or replaced private sewage disposal system that is designed and approved to have a discharge point shall be disinfected prior to discharge.
- b) Chlorine Feeders. Chlorination equipment shall have a means of removal of solids. Appendix A, Illustration S provides an example of a typical chlorine feeder. All chlorine feeders shall meet the requirements of Appendix A, Illustration S. Other feeders that meet the requirement of this Section are also acceptable.
- c) Chlorine Contact Tanks. Chlorine contact tanks shall be baffled and shall provide a contact time of at least 30 minutes based on 2½ times the average flow. The minimum contact tank capacity shall be 30 gallons. Access to the distribution feeder shall extend to the ground surface.
- d) Chlorine Residual. A final effluent free chlorine residual of 0.2 to 1.5 mg/1 shall be maintained.
- e) Chlorine products used for the disinfection of treated wastewater effluent shall be used according to the product's labeling.
- f) After January 1, 2014, any disinfection process or equipment that does not meet the requirements of NSF International/ANSI Standard 46, Section 11 or does not provide proper disinfection as determined by adequate third party testing will not be approved for installation.
- g) When the private sewage disposal system incorporates a discharge to a subsurface seepage system as a method to reduce the amount of effluent at the discharge point, the disinfection device shall be the last component prior to the discharge point.
(Source: Amended at 37 Ill. Reg. 14994, effective August 28, 2013)