(a) The date of expiration of any permit issued pursuant to this Part shall be not more than 10 years from the date such permit was issued.

(b) The expiration date of any permit issued pursuant to this Part may be extended by the chief permit administrator for good cause shown upon a written request to him filed prior to the expiration date. Any such extension may not exceed one year in duration.

(c) In accordance with section 661.10(c) of this Part any permit issued pursuant to this Part may authorize the undertaking of a regulated activity on a periodic basis, but the duration of any such permit shali not exceed the period of time allowed by subdivisions (a) and (b) of this section.