The owner or operator must comply with conditions specified in the facility permit that are designed to ensure that hazardous constituents under §335.159 of this title (relating to Hazardous Constituents) which have been detected in the groundwater from a regulated unit do not exceed the concentration limits under §335.160 of this title (relating to Concentration Limits) in the uppermost aquifer underlying the waste management area beyond the point of compliance during the compliance period under §335.162 of this title (relating to Compliance Period). The commission will establish this groundwater protection standard in the compliance plan when hazardous constituents have been detected in the groundwater from a regulated unit.