Current through Register Vol. 48, No. 38, September 20, 2024
a) Owners or operators of USTs shall
immediately report to IEMA (from Illinois, 1-800-782-7860; from outside
Illinois, 217/782-7860) and follow the procedures in Sections
176.310,
176.320(b)
and (c) and
176.350
in any of the following situations:
1) The
discovery by owners, operators, product delivery drivers or others of released
regulated substances at the UST site or in the surrounding area (such as the
presence of free product or vapors in soils, basements, sewer or utility lines
or nearby surface water);
2)
Unusual operating conditions observed by owners or operators (such as the
erratic behavior of product dispensing equipment, the sudden loss of product
from the UST or an unexplained presence of water in the tank, or liquid in the
interstitial space of any secondarily contained systems), unless:
A) The system equipment or component is found
not to be releasing regulated substances to the environment;
B) Any defective system equipment or
component is immediately repaired or replaced; and
C) For secondarily contained systems, except
as provided for in 41 Ill. Adm. Code
175.630(f)(1)(B)(iv),
any liquid in the interstitial space not used as part of the interstitial
monitoring method (for example, brine filled) is immediately removed;
3) Monitoring results, including
investigation of an alarm, from a release detection method required under 41
Ill. Adm. Code
175.620,
175.630
or 175.640 that indicate a release may have occurred, unless one or more of the
following exists:
A) The monitoring device is
found to be defective and is immediately repaired, recalibrated or replaced,
and additional monitoring does not confirm the initial result;
B) The leak is contained in the secondary
containment and:
i) Except as provided for in
41 Ill. Adm. Code
175.630(f)(1)(B)(iv),
any liquid in the interstitial space not used as part of the interstitial
monitoring method (for example, brine filled) is immediately removed;
and
ii) Any defective system
equipment or component is immediately repaired or replaced;
C) In the case of monthly
inventory control, described in 41 Ill. Adm. Code 175. Subpart I, a second
month of data does not confirm the initial result or the investigation
determines that no release has occurred; or
D) The alarm was investigated and determined
to be a nonrelease event (for example, from a power surge or caused by filling
the tank during release detection testing).
b) In addition to IEMA, the 911 call center
shall immediately be called when a suspected release presents a hazard to life,
for example, when observations demonstrate the presence of petroleum or
hazardous substance vapors in sewers or basements or free product near utility
lines, or where a sheen is present on a body of water.
c) Once a release has been confirmed under
the procedures of Section 176.310, the reporting procedures of Section
176.320
shall apply.
d) Notification of
Suspected Release at the Direction of the storage tank safety specialist (STSS)
employed by OSFM. The owner, operator or designated representative of the UST
must notify IEMA and any other entities required to be notified under Section
176.320
of a suspected release, when directed to do so by the STSS. This is to be done
at the time of discovery and the incident number shall be given to the STSS
prior to leaving the site.
