§ 51.10 INSPECTION AND SAMPLING.
   (A)   The Superintendent shall inspect the facilities of any user to ascertain whether the purpose of this chapter is being met and all requirements are being complied with. Persons or occupants of premises where wastewater is created or discharged shall allow the Superintendent ready access at all reasonable times to all parts of the premises for the purposes of inspection, sampling, records examination or in the performance of any of their duties. The Superintendent, Minnesota Pollution Control Agency (MPCA) and Environmental Protection Agency (EPA) shall have the right to set up on the user’s property such devices as are necessary to conduct sampling, inspection, compliance monitoring and/or metering operations. Where a user has security measures in force which would require proper identification and clearance before entry into his, her or their premises, the user shall make necessary arrangements with any security guards so that upon presentation of suitable identification, the Superintendent, MPCA and EPA will be permitted to enter, without delay, for the purposes of performing their specific responsibilities.
   (B)   Representative samples of a user’s industrial wastewater shall be collected on normal operating days as provided in the user’s permit. Industrial users subject to pretreatment standards shall sample in accordance with the pretreatment standards. Self-monitoring point(s) for industrial users who are not subject to pretreatment standards shall be at a location before wastewater is mixed with other discharges or at a point where waste can be adequately monitored.
(1992 Code, § 277:19)