Section 430.21 - Protection of existing users(a) Protected area permits issued under this regulation for new or expanded withdrawals of ground water shall include conditions to protect the owners of existing wells in accordance with the provisions of this section.(b) Any person, firm, corporation or other entity who commences a new or expanded withdrawal of ground water that is subject to the requirement of a protected area permit under this regulation shall provide mitigating measures if the withdrawal significantly affects or interferes with any existing well. Mitigation measures may consist of:(1) Providing an alternative water supply, of adequate quantity and quality, to the effected well owner(s);(2) Providing financial compensation to the affected well owner(s) sufficient to cover the costs of acquiring an alternative water supply of adequate quantity and quality; or(3) Such other measures as the Commission shall determine to be just and equitable under the circumstances present in the case of any individual application.46 FR 24, Jan. 2, 1981. Redesignated at 51 FR 25031, July 10, 1986