If a loan recipient who is not the owner of the property and the department determine, after the completion of the preliminary endangerment assessment, that the sum of the cost of remediation and the property purchase price makes the redevelopment of the property not economically feasible, the department may waive the repayment of up to 75 percent of the loan, and the amount waived shall be deemed a grant to the loan recipient. If the department waives the repayment of part of the loan, the recipient shall repay the remaining portion of the loan within one year of that waiver.