35 Ill. Adm. Code 310.401
Pretreatment Permits
Section 310
Section 310.401Â Pretreatment
Permits
a)Â Â Â Â Â Â Â Â An industrial user must not, without a pretreatment permit,
discharge to a POTW, unless the discharge is to a POTW with a pretreatment
program approved under Subpart E.
b)Â Â Â Â Â Â Â Â An industrial user that does not have a pretreatment permit must
apply for a pretreatment permit within 30 days after the Agency notifies the
user that the user meets any of the following criteria:
1)Â Â Â Â Â Â Â Â The user has caused pass through or interference.
2)Â Â Â Â Â Â Â Â The user's discharge presents an imminent endangerment to the
health or welfare of persons.
c)Â Â Â Â Â Â Â Â No person may cause or allow any discharge for which a
pretreatment permit has been issued unless the discharge is in compliance with
the conditions of the pretreatment permit.