NEC ECC: Option A - Can the Employer recover 3rd Party costs incurred due to Contractor error?

We have a scenario where the Contractor has excavated in the wrong location. As a result, the Employer has incurred additional Archaeological costs which would not have been incurred had the Contractor excavated in the correct location.

Is there any means for the Employer to recover the extra over cost? (Archaeologist is engaged/paid directly by Employer).

Many thanks.