13.08.060 Control of industrial wastes directed to pubic sewers.

1. Within three months after passage of the ordinance codified in this chapter, each person who discharges industrial wastes to a public sewer shall prepare and file with the proper approving authority a report that shall include pertinent data relating to the quantity and characteristics of the wastes discharged to the wastewater works. The following forms or the information needed to complete them will be accepted:

2. Similarly, each person desiring to make a new connection to a public sewer for the purpose of discharging industrial wastes shall prepare and file with the proper approving authority a report that shall include actual and predicted data relating to the quantity and characteristics of the waste to be discharged.

B. Extension of Time. 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, a request for extension of time may be presented to the proper approving authority's for his consideration and shall be granted only with the approving authority's recommendation and a majority vote of the board of utility commissioners.

C. Industrial Discharges. If any waters or wastes are discharged or proposed to be discharged to the public sewers, which waters or wastes contain substances or possess the characteristics enumerated in Section 13.08.050 and which have adverse effect upon the sewage works, processes, equipment or receiving waters, or which otherwise create a hazard to life, health or constitute a public nuisance, the proper approving authority may:

1. Each person discharging industrial wastes into a public sewer shall, at the discretion of the proper approving authority, construct and maintain one or more control manholes or access points to facilitate observation, measurement and sampling of his wastes, including domestic sewage.

2. Control manholes or access facilities shall be located and built in a manner acceptable to the proper approving authority. If measuring devices are to be permanently installed, they shall be of a type acceptable to the proper approving authority.

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 safe condition, accessible, and in proper operating condition at all times. Plans for installation of the control manholes or access facilities and related equipment shall be approved by the proper approving authority prior to the beginning of construction.

E. Measurement of Flow. The volume of flow used for computing industrial waste collection and treatment charges shall be the metered water consumption of the person as shown in the records of meter readings maintained by Juneau utilities, except as noted in subsection G of this section.

F. Provision of Deductions. In the event that a person discharging industrial waste into the public sewers produces evidence satisfactory to the approving authority that more than ten percent of the total annual volume of water used for all purposes does not reach the public sewer, then the determination of the water consumption to be used in computing the waste volume discharged into the public sewer may be made a matter of agreement between the proper approving authority and the person.

G. Metering of Waste. Devices for measuring the volume of waste discharged may be required by the proper approving authority if this volume cannot otherwise be determined from the metered water consumption records. Metering devices for determining the volume of waste shall be installed, owned and maintained by the person. Following approval and installation, such meters may not be removed without the consent of the proper approving authority.

1. Industrial wastes discharged into the public sewers shall be subject to periodic inspection and a determination of character and concentration of the wastes. The determination shall be made by the industry as often as may be deemed necessary by the proper approving authority.

2. Samples shall be collected in such a manner as to be representative of the composition of wastes. The sampling may be accomplished either manually or by use of mechanical equipment acceptable to the proper approving authority.

3. Installation, operation and maintenance of the sampling facilities shall be the responsibility of the person discharging the waste and shall be subject to the approval of the proper approving authority. Access to sampling locations shall be granted to the proper approving authority or their duly authorized representative at all times. Every care shall be exercised in the collection of samples to ensure their preservation in a state comparable to that at the time the sample was taken.

I. Pretreatment. When required, in the opinion of the proper approving authority, to modify or eliminate wastes that are harmful to the structures, processes or operation of the wastewater treatment works, the person shall provide at his expense such preliminary treatment or processing facilities as may be determined required to render his wastes acceptable for admission to the public sewer.

J. Grease and/or Sand Interceptors. Grease, oil and sand interceptors shall be provided when, in the opinion of the proper approving authority, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts, as specified in Section 13.08.050C6, or any flammable wastes, sand, or other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the proper approving authority, and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner(s) of these interceptors shall be responsible for the proper removal and disposal by appropriate means of the captured material and shall maintain records of the dates and means of disposal which shall be subject to review by the proper approving authority. Disposal of the collected materials performed by the owner(s)'s personnel or his agent must be in accordance with currently acceptable DNR practice.

1. 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 "Standard Methods for the Examination of Water and Wastewater," published by the American Public Health Association, and with the federal regulations, 40 CFR 136, "Guidelines Establishing Test Procedures for Analysis of Pollutants." Sampling methods, location, time, durations and frequencies are to be determined on an individual basis subject to approval by the proper approving authority.

2. Determination of the character and concentration of the industrial wastes shall be made by the person discharging them, or his agent, as designated and required by the proper approving authority. The city may also make its own analyses on the wastes and these determinations shall be binding as a basis for treatment service charges.

L. Submission of Information. Plans, specifications, and other pertinent information relating to proposed flow equalization, pretreatment or processing facilities shall be submitted for review of the proper approving authority prior to the start of their construction if the effluent from such facilities is to be discharged into the public sewers. (Prior code § 5-4-3)