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CCR, Trn.F 23, DIVISION 3, CIIAPTER 16, UNDERGROUND STORAGE TANK REGULATIONS <br />sealed using locking caps or concrete plugs. <br />(5) Power service shall be disconnected from all pumps associated with the use <br />of the underground storage tank unless the power services some other <br />equipment which is not being closed, such as the impressed -current <br />cathodic protection system. <br />(h) The monitoring required pursuant to the permit may be modified by the local <br />agency during the temporary closure period. In making a decision to modif} <br />monitoring requirements, the local agency shall consider the need to maintain <br />monitoring in order to detect unauthorized releases that may have occurred <br />during the time the underground storage tank was used but that have not yet <br />been detected. In all cases, corrosion protection shall continue to be operated. <br />(c) The underground storage tank shall be inspected by the owner or operator at <br />least once every three months to verify that the temporary closure measures are <br />still in place. The inspection shall include but is not limited to the following: <br />(1) visual inspection of all locked caps and concrete plugs. <br />(2) If locking caps are used, at least one shall be removed to determine if any <br />liquids or other substances have been added to the underground storage <br />tank or if there has been a change in the quantity or type of liquid added <br />pursuant :o subsection (a)(3) of this section. <br />(d) At the end of a temporary closure period over 12 months, includ..Ig anv <br />extension granted by the local agency, the owner may reuse the ul.-lerground <br />storage tank only if the tank meets the requirements of Article 3 for new <br />underground storage tanks or is upgraded to meet the requirements of <br />Article 6. <br />(e) All ne« and existing underground storage tank systems which have been <br />temporarily closed must continue to comply with repair and recordkeep,ng <br />requirements, release reporting and investigation requirements, and release <br />response and corrective action requirements specified in this chapter and <br />Chapter 6.7 of the Health and Safety Code. <br />Authority Health and Safety Code 25299.3, 25299 7 <br />Reference: Health and Safety Code 25298; 40 CFR 28070. 281.36(a)(1) <br />2672. Permanent Closure Requirements <br />(a) Owners or operators of underground storage tanks subject to permanent <br />closure shall comply with either subsection (b) for underground storage tank <br />7-3 <br />