Section 215.123  Petroleum Liquid Storage Tanks

a)         The requirements of subsection (b) below shall not apply to any stationary storage tank:

1)         Equipped before January 1, 1979 with one of the vapor loss control devices specified in Section 215.121(b) of this Part, except Section 215.121(b)(1) of this Part;

2)         With a capacity of less than 151.42 cubic meters;

3)         With a capacity of less than 1,600 cubic meters (422,400 gallons) and used to store produced crude oil and condensate prior to custody transfer;

4)         With a capacity of less than 1,430 cubic meters (378,000 gallons) and used to store produced oil or condensate in crude oil gathering;

5)         Subject to new source performance standards for storage vessels of petroleum liquid, 40 CFR 60, incorporated by reference in Section 215.105 of this Part.  The provisions of Section 111 of the Clean Air Act...relating to standards of performance for new stationary sources...are applicable in this State and are enforceable under [The Environmental Protection Act]. (Ill. Rev. Stat., ch. 111½, par. 1009.1(b)).

6)         In which volatile petroleum liquid is not stored; or

7)         Which is a pressure tank as described in Section 215.121(a) of this Part.

b)         Subject to subsection (a) above no owner or operator of a stationary storage tank shall cause or allow the storage of any volatile petroleum liquid in the tank unless:

1)         The tank is equipped with one of the vapor loss control devices specified in Section 215.121(b) of this Part;

2)         There are no visible holes, tears or other defects in the seal or any seal fabric or material of any floating roof;

3)         All openings of any floating roof deck, except stub drains, are equipped with covers, lids or seals such that:

A)        The cover, lid or seal is in the closed position at all times except when petroleum liquid is transferred to or from the tank;

B)        Automatic bleeder vents are closed at all times except when the roof is floated off or landed on the roof leg supports; and

C)        Rim vents, if provided, are set to open when the roof is being floated off the roof leg supports or at the manufacturer's recommended setting;

4)         Routine inspections of floating roof seals are conducted through roof hatches once every six months;

5)         A complete inspection of the cover and seal of any floating roof tank is made whenever the tank is emptied for reasons other than the transfer of petroleum liquid during the normal operation of the tank, or whenever repairs are made as a result of any semi-annual inspection or incidence of roof damage or defect; and

6)         A record of the results of each inspection conducted under subsection (b)(4) or (b)(5) above is maintained.

c)         Owners and operators of petroleum liquid storage tanks were required to have compliance schedules as summarized in Appendix C of this Part.

(Source:  Amended at 16 Ill. Reg. 13849, effective August 24, 1992)