925.11 REGULATION OF DISCHARGE TO THE SEWERAGE SYSTEM.
   (a)   Access to Premises for Inspection of Discharge. The City Manager and other duly authorized employees of the City bearing proper credentials and identification shall be permitted to enter all properties at reasonable times for the purposes of inspection, observation, measurement, sampling and testing in accordance with the provisions of this chapter. The City representatives shall have no authority to inquire into any industrial processes beyond the point which has a direct bearing on the type and source of discharge to the sewers for waste treatment.
   (b)   Control Structure or Manhole Required. When required by the City Manager, the owner of any property discharging industrial wastes shall install a suitable control structure or manhole together with such necessary meters and other appurtenances in the sewer to facilitate observation, sampling and measurement of the wastes. Such structure or manhole, meters and other appurtenances, when required, shall be accessible and safely located, and shall be constructed in accordance with plans approved by the City Manager. The structure or manhole, meters and other appurtenances, when required, shall be installed by the owner at the owner's expense, and shall be maintained by the owner so as to be safe and accessible at all times.
   (c)   All measurements, tests and analyses of the characteristics of water and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of "Standard Methods of Examination of Water and Wastewater" or "Methods for Chemical Analysis of Water and Wastes", shall conform with Federal methods as described in 40 CFR 136 and shall be determined at the control manhole provided or upon suitable samples taken at the control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effects of the wastes upon the sewerage system and to determine the existence of hazards to life, limb and property. Sampling methods, location, times, durations and frequencies are to be determined on an individual basis subject to the approval of the City Manager.
   (d)   The City Manager may require a user of sewer services to provide information needed to determine the acceptability or unacceptability of discharge.
      These requirements may include:
      (1)   Peak rate of discharge and volume over a specified time period;
      (2)   Chemical analyses of industrial wastes;
      (3)   Information on raw materials, processes and products affecting industrial waste volume and quality;
      (4)   Quantity and disposition of specific liquid, sludge, oil and solvent, or other materials important to sewer use control;
      (5)   A plot plan of user's property showing sewers and pretreatment facility locations;
      (6)   Details of industrial wastes pretreatment facilities;
      (7)   Details of systems to prevent and control the loss of materials through spills into the City sewers.