Any person desiring to deposit or discharge any industrial waste mixture into the sewers of the city or any sewer connected therewith, shall make written application to the approving authority.
(A) Control chambers. Any person discharging or desiring to discharge an industrial waste mixture into the sewerage works of the city, or any sewer connected therewith, shall provide and maintain in suitable, accessible position on his or her premises, or such premises occupied by him or her, an inspection chamber or manhole near the outlet of each sewer, drain, pipe, channel or connection which communicated with any sewer or sewage work of the city or any sewer connected therewith. Each such manhole or inspection chamber shall be of such design and construction as to prevent infiltration by ground and/or surface waters and to prevent the entrance of objectionable slugs of solids (greater than 1/2 inch in size) into the sanitary wastewater system. The inspection chamber shall be maintained by the person discharging wastes so that any authorized representative or employee of the city may readily and safely measure the rate of flow and obtain samples of the flow at all times. Plans for the construction of the control manholes or inspection chambers including such flow measuring devices as may be required, shall be approved by the approving authority prior to the beginning of construction. Such structures and equipment (including a valve on the effluent line) shall be installed by the person at his or her expense.
(B) Measurement of flow.
(1) The meter records of the Water Department shall be the valid basis for computing the wastewater flow, unless actual wastewater flow measurement by a recording meter of an approved type is required by either the approving authority or industry. The owner shall install and maintain such device in proper condition to accurately measure such flow. Upon failure to do so, the water consumption shall be the basis for determining the applicability of this chapter and computing the industrial service charge. When water is obtained from a privately owned source, a water meter and/or wastewater meter satisfactory to the approving authority shall be installed and maintained at the person's expense.
(2) When water is contained in a product or is evaporated or is discharged in an uncontaminated condition to surface drainage, an application may be needed for a deduction in the volume of waste discharged to the public sewer provided supporting data satisfactory to the approving authority is furnished. This data shall include a flow diagram, destination of water supply and/or waste, supported by sub-metering data obtained on the process piping at the expense of the private owner.
(C) Sampling of wastes. Sampling of the effluent of waste discharges may be accomplished manually or by the use of mechanical equipment to obtain a 24-hour composite sample which would be representative of the total effluent. Samples shall be taken as such intervals as determined by the approving authority as necessary to maintain a control over the discharge from the establishment. The methods used in the examination of all wastewater to determine suspended solids, BOD and concentrations of prohibited wastes shall be as set for herein. All costs for sampling and testing of industrial, discharges, as ordered by the approving authority, shall be paid by the person making accordance with Standard Methods. Test results shall be reported within a reasonable time.
(Ord. 238, passed 5-5-1-2006)