Persons specified in R.S. 30:2288 or R.S. 30:2288.1(C) shall not be liable for aggravating or contributing to any discharge or disposal or threatened discharge or disposal identified in an approved voluntary remedial action plan for the purpose of R.S. 30:2289(1) as a result of their performance of the remedial actions required in accordance with the plan and the direction of the secretary. Nothing in this Part relieves a person of any liability for failure to perform the work required by the voluntary remedial action plan in a workman-like manner and in accordance with generally accepted standards of performance and operation applicable to such remedial work.
La. R.S. § 30:2287