83 Ill. Adm. Code 535.220
Mercury Reports to the Commission
Section 535.220 Mercury Reports to the Commission
a) No
later than April 1 of each year, a public utility offering natural gas service
shall file an annual mercury compliance report with the Chief Clerk of the
Commission. The report shall contain the following information for the
previous calendar year:
1) The
number of locations that required a mercury vapor air sample test; and
2) An
identification of the number of locations that contained confirmed readings in
excess of the allowed levels and the concentration of mercury vapor detected by
the public utility at each location as set forth in Section 535.200(c).
b) If a
public utility reports no activity regarding the removal of mercury-containing
regulators or manometers used in providing natural gas service for a period of
three consecutive years and certifies by verified statement with the Chief
Clerk of the Commission that there are no known locations with
mercury-containing regulators or manometers used in providing natural gas
service, then the utility is exempted from the reporting requirement.
c) A
public utility’s exemption from the reporting requirements in this Section ends
in the event that:
1) The
public utility discovers a mercury-containing regulator or manometer used in
providing natural gas service within its system; or
2) The
public utility merges with another Illinois natural gas utility or acquires
Illinois service territory from another public utility that has not met the
requirements of subsection (b).