(a)   Within thirty days after passage of this section (Ordinance 75-50, passed June 16, 1975), each person whose operation entails the discharge of industrial wastes to a public sewer shall prepare and file with the Engineer a written statement setting forth the nature of the operation contemplated or presently carried on, the amount and source of water required for use, the proposed point of discharge of such wastes into the wastewater collection system of the City, the estimated amount to be so discharged and a fair statement setting forth the expected bacterial, physical, chemical and other known characteristics of such wastes. Within a reasonable time of receipt of such statement, it shall be the duty of the City to make an order stating such minimum restrictions as in the judgment of the Engineer may be necessary to adequately guard against unlawful uses of the City wastewater system.
   (b)   When it can be demonstrated that circumstances exist which would create an unreasonable burden on the person to comply with the time schedule imposed by subsection (a) hereof, a request for extension of time may be presented for consideration of the Engineer. All requests for extension of time shall be submitted in writing stating the reasons for such a request. Under no circumstances shall the extension of time exceed thirty days after approval of the extension by the Engineer.
   (c)   Each person discharging industrial wastes into a public sewer shall construct and maintain one or more control manholes or access points to facilitate observation, measurement and sampling of his wastes, including sanitary wastewater.
   Control manholes or access facilities shall be located and built in a manner acceptable to the Engineer. If measuring devices are to be permanently installed they shall be of a type acceptable to the Engineer.
   Control manholes, access facilities and related equipment shall be installed by the person discharging the waste at his expense, and shall be maintained by him so as to be in a safe condition, accessible and in proper operating condition at all times. Plans for the installation of such facilities shall be approved by the Engineer prior to the beginning of construction.
   (d)   The volume of flow used for computing industrial waste surcharges shall be the metered water consumption of the person as shown in the records of water meter readings maintained by the City except as provided in this section.
   If the person discharging industrial wastes into the public sewers procures any part, or all, of this water from sources other than the City water system, all or part of which is discharged into the public sewer, the person shall install and maintain at his expense water meters of a type approved by the Engineer for the purpose of determining the volume of water obtained from those other sources.
   The person discharging industrial wastes into the public sewers may install and maintain at his expense metering devices for determining the volume of waste being discharged to the public sewer, from which the industrial waste surcharge would be computed. The measuring devices shall be of a type acceptable to the Engineer.
   The Engineer may require the installation of devices for measuring the volume of waste discharged if these volumes cannot otherwise be determined from the metered water consumption records.
   Any metering device for determining the volume of waste discharged to the public sewer shall be installed, owned and maintained by the person. Following approval and installation, such meters may not be removed without the consent of the Engineer.
   (e)   Industrial wastes discharged into the public sewers shall be subject to periodic inspection with a determination of character and concentration of such wastes. The determination shall be made as often as may be deemed necessary by the Engineer but in no case less than two twenty-four hour composite samples per month. The owner shall be responsible for the collection and testing of the aforementioned samples.
   Samples shall be collected in such a manner as to be representative of the composition of the wastes. The sampling shall be accomplished by the use of automatic sampling equipment capable of collecting composite samples.
   Access to sampling locations shall be granted to the Engineer or his authorized representative at all times. Every care shall be exercised in the collection of samples to insure their preservation in a state comparable to that at the time the sample was taken.
   (f)   Laboratory procedures used in the examination of industrial waste shall be those set forth in the latest edition of Standard Methods. However, alternative methods for certain analyses of industrial wastes may be used subject to mutual agreement between the Engineer and the person responsible.
   Determination of the character and concentration of the industrial wastes shall be made by the person responsible for the discharge, or his qualified agent as approved by the Engineer. The results of the analyses shall be reported to the City on a monthly basis on forms provided by the City. The City shall make its own analyses on the wastes and these determinations shall be binding as a basis for charges, except under circumstances in this subsection.
   In case the analyses performed by the industry and the City result in substantially different values, an effort shall be made by the industry to collect samples at the same time the City collects its own samples. The results of the analyses on the samples collected by the City and the industry shall be compared using the same testing procedures as outlined in the latest edition of Standard Methods for the Examination of Water and Wastewater published by the American Public Health Association, and the differences negotiated.
(Ord. 75-50. Passed 6-6-75.)