(a)   The owner of any property serviced by a building sewer carrying industrial wastes shall provide laboratory measurements, tests and analyses of waters and wastes to illustrate compliance with this chapter and any special conditions for discharge established by the City or regulatory agencies having jurisdiction over the discharge.
   The number, type and frequency of laboratory analyses to be performed by the owner shall be as stipulated by the City, but not less than once per year the industry must supply a complete analysis of the constituents of the wastewater discharge to ensure compliance with Federal, State and local standards. The owner shall report the results of measurements and laboratory analyses to the City at such times and in such a manner as prescribed by the City. The owner shall bear the expense of all measurements, analyses and reporting required by the City. At such times as deemed necessary, the City may take measurements and samples for analysis by an outside laboratory service.
   (b)   All measurements, tests and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of the Illinois Environmental Protection Agency Division of Laboratories Manual of Laboratory Methods, and shall be determined at the control manhole provided or upon suitable samples taken at such control manhole. If 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 building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb and property. The particular analyses involved will determine whether a twenty-four hour composite of all outfalls of a premises is appropriate or whether a grab sample should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from twenty-four hour composites of outfalls, whereas pH is determined from periodic grab samples.
(Ord. 569.  Passed 9-21-88.)