Rules adopted to implement section 455B.172, subsection 7, paragraph “b”; section 455B.173, subsection 9; and section 455B.187 shall specifically provide for the immediate replacement or reconstruction of water wells in response to the sudden and unforeseen loss or serious impairment of a well for its intended use. These provisions shall include the granting of emergency authorizations and registration of well contractors pursuant to section 455B.187 and may include the granting of variances and exemptions from technical standards as appropriate.