35 Ill. Adm. Code 201.407
Retention of Information
Section 201
Section 201.407 Retention of
Information
Owners and operators of sources
which are subject to the monitoring and recording requirements of this Subpart
shall maintain files of emission information at the facility and make the
information available to the Agency upon request. This information shall be
retained for at least two years from the date of collection, and shall include:
a) Emission measurements;
b) Continuous monitoring system performance testing measurements;
c) Performance evaluations;
d) Calibration checks;
e) Maintenance and adjustments performed;
f) Quarterly reports submitted pursuant to Section 201.405; and
g) Data reduction information used pursuant to Section 201.406.