Ohio Rev. Code Ann. § 1521.31 – Submission of revised ground water model

(A) The chief of the division of water resources may require a permittee that has been issued a permit under section 1521.29 of the Revised Code to decrease its withdrawal and submit a revised ground water model under section 1521.27 of the Revised Code if either of the following applies:
1. (1) The permittee's reported ground water monitoring data conflicts with the permittee's ground water model.
2. (2) The results of the division of water resources' investigation of any written complaint under section 1521.36 of the Revised Code indicate that the permittee's withdrawal caused the diminution or interruption of a person's water supply.
(B) If so required under division (A) of this section, the permittee shall submit the revised ground water modeling using additional data that reflects the permittee's impact on ground water. Based upon the revised ground water modeling and additional data, the chief may amend the permit to decrease the withdrawal or establish a revised projected cone of depression.
(C) A permittee may request the chief to amend a permit issued under section 1521.29 of the Revised Code when another ground water user affects or has the potential to affect the projected cone of depression. The permittee shall submit with the request a revised ground water model using additional data that reflects the other ground water user's impact on ground water. Based on the revised ground water model and additional data, the chief may establish a revised projected cone of depression and amend the permit accordingly.