If any officer of this state or of the Federal Government who is empowered by law to determine the existence of violations of water quality standards which have the force of state or federal law or violations of conditions of a pollution discharge permit required by state or federal law notifies the county or any public body within the county that such a standard or condition is being violated, or has so notified the county or public body prior to February 24, 1977, and the violation continues after February 24, 1977, the county shall eliminate such violation by the construction, other acquisition, improvement, equipment, operation, maintenance or repair of such facilities therefor as the board deems necessary or advisable, unless such public body, subject to the approval of the board, eliminates such violation. If the violation occurs in facilities owned by another public body, the county is entitled to recover from that public body the costs of eliminating the violation plus interest from the date on which each element of those costs was respectively paid.