75-2-422. Amount of noncompliance penalty -- late charge. (1) The amount of the penalty which shall be assessed and collected with respect to any source under 75-2-421 through 75-2-429 shall be equal to:
(a) the amount determined in accordance with the rules adopted by the board, which shall be no less than the economic value which a delay in compliance after July 1, 1979, may have for the owner of such source, including the quarterly equivalent of the capital costs of compliance and debt service over a normal amortization period not to exceed 10 years, operation and maintenance costs foregone as a result of noncompliance, and any additional economic value which such a delay may have for the owner or operator of such source; minus
(b) the amount of any expenditure made by the owner or operator of that source during any such quarter for the purpose of bringing that source into and maintaining compliance with such requirement, to the extent that such expenditures have not been taken into account in the calculation of the penalty under subsection (1)(a).
(2) To the extent that any expenditure under subsection (1)(b) made during any quarter is not subtracted for such quarter from the costs under subsection (1)(a), such expenditure may be subtracted for any subsequent quarter from such costs. In no event may the amount paid be less than the quarterly payment minus the amount attributed to actual cost of construction.
(3) If the owner or operator of any stationary source to whom notice is issued under 75-2-425 does not submit a timely petition under 75-2-425(2)(b) or submits a petition which is denied and if the owner or operator fails to submit a calculation of the penalty assessment, a schedule for payment, and the information necessary for independent verification thereof, the department may enter into a contract with any person who has no financial interest in the matter to assist in determining the amount of the penalty assessment or payment schedule with respect to such source. The cost of carrying out such contract may be added to the penalty to be assessed against the owner or operator of such source.
(4) Any person who fails to pay the amount of any penalty with respect to any source under 75-2-421 through 75-2-429 on a timely basis shall be required to pay in addition a quarterly nonpayment penalty for each quarter during which such failure to pay persists. Such nonpayment penalty shall be equal to 20% of the aggregate amount of such person's penalties and nonpayment penalties with respect to such source which are unpaid as of the beginning of such quarter.