If a borehole is left open, protective measures shall be taken to prevent the borehole from acting as a conduit for contamination or becoming a safety hazard.
Wis. Admin. Code Department of Natural Resources NR 141.055
If a borehole is left open, protective measures shall be taken to prevent the borehole from acting as a conduit for contamination or becoming a safety hazard.
Wis. Admin. Code Department of Natural Resources NR 141.055