Any person discharging industrial wastes into a sewer shall construct and maintain a suitable control manhole or manholes downstream from any such places of discharge to permit observation, measurement and sampling of such wastes by the department of water management or by personnel of the metropolitan water reclamation district. Where no manhole has been constructed or can be constructed, as in the case of some existing industries, 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.
(Amend Coun. J. 11-8-12, p. 38872, § 364)