If you have a target to meet and you don't meet it, your product has failed so you must reject it.
Otherwise your targets are incorrect and need to be reviewed. What was the science or rationale about setting the specs where they are?Who set them? Are they actually valid for your product?
ACC is not a food safety criterion, but indicators like coliforms, E.coli, enterobacteriaceae are. Their presence may indicate fecal contamination. Fecal contamination may include pathogens.
Is this a chance you can take? Your risk assessments need to be done/reviewed to help you make decisions like the one you are facing now.