314 C.M.R. 21.09
(1) The Department may take enforcement action pursuant to applicable law to enforce the provisions of 314 CMR 21.00 and any Watershed Permit issued thereunder. Such action may include, without limitation, the following:
(2) Without limitation, it shall be a violation of 314 CMR 21.00 to:
(3) Without limitation, the owner, operator, or other person in charge of the permittee's property, facility, operation, or activity, upon presentation of proper identification, shall give the Department and its authorized representatives free and unrestricted access to conduct inspections to verify compliance or investigate suspected violations relative to 314 CMR 21.00, a Watershed Permit, or other Department approvals issued pursuant to 314 CMR 21.00, by: