Chapter 13.84
CONTROL OF INDUSTRIAL WASTE
Sections:
13.84.010 Submission of basic data.
13.84.030 Industrial discharges.
13.84.050 Measurement of flow.
13.84.100 Grease and/or sand interceptors.
13.84.120 Submission of information.
13.84.010 Submission of basic data.
A. Within three months after passage of the ordinance codified in Chapters 13.72 through 13.96 LMC, each person who discharges industrial wastes to a public sewer shall prepare and file with the approving authority a report that shall include pertinent data relating to the quantity and characteristics of the wastes discharged to the wastewater works in accordance with Chapter 90.48 RCW.
B. 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 approving authority a report that shall include actual or predicted data relating to the quantity and characteristics of the waste to be discharged. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 751 § 5, 1984; Ord. 680 § 301, 1981.]
13.84.020 Extension of time.
Where it can be demonstrated that circumstances exist which would create an unreasonable burden on the person to comply with the time schedule imposed by LMC 13.84.010, a request for extension of time may be presented for consideration of the approving authority. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 302, 1981.]
13.84.030 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 Chapter 13.88 LMC and which, in the judgment of the approving authority, may have a deleterious 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 approving authority may:
A. Reject the wastes;
B. Require pretreatment to an acceptable condition for discharge to the public sewers;
C. Require control over the quantities and rates of discharge; and/or
D. Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of LMC 13.88.040. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 303. 1981.]
13.84.040 Control manholes.
A. 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 domestic sewage.
B. Control manholes or access facilities shall be located and built in a manner acceptable to the approving authority. If measuring devices are to be permanently installed, they shall be of a type acceptable to the approving authority.
C. 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 approving authority prior to the beginning of construction. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 304, 1981.]
13.84.050 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 the city water department except as noted in LMC 13.84.070. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 305, 1981.]
13.84.060 Deductions.
In the event that a person discharging industrial waste into the public sewers produces evidence satisfactory to the approving authority that more than 10 percent of the total annual volume of water used for all purposes does not reach the public sewer, then the determination of water consumption to be used in computing the waste volume discharged into the public sewer may be made a matter of agreement between the approving authority and the person. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 306, 1981.]
13.84.070 Metering of waste.
Devices for measuring the volume of waste discharged may be required by the 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 approving authority. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 307, 1981.]
13.84.080 Waste sampling.
A. Industrial wastes discharged into the public sewers shall be subject to periodic inspection and a determination of character and concentration of said wastes. The determinations shall be made by the industry as often as may be deemed necessary by the approving authority.
B. Samples shall be collected in such a manner as to be representative of the composition of the wastes. The sampling may be accomplished either manually or by the use of mechanical equipment acceptable to the approving authority.
C. 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 approving authority. Access to sampling locations shall be granted to the approving authority or its duly authorized representatives at all times. Every care shall be exercised in the collection of samples to ensure their preservation in the state comparable to that at the time the sample was taken. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 308, 1981.]
13.84.090 Pretreatment.
Where required, in the opinion of the 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 sewers. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 309, 1981.]
13.84.100 Grease and/or sand interceptors.
Grease, oil, and sand interceptors shall be provided when, in the opinion of the approving authority, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts, as specified in LMC 13.88.030(G)(3), 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 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) 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 are subject to review by the approving authority. Any removal and hauling of the collected materials not performed by owner(s)’ personnel must be performed by currently licensed waste disposal firms. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 310, 1981.]
13.84.110 Analyses.
A. All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in Chapters 13.72 through 13.96 LMC 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. Sampling methods, location, times, durations, and frequencies are to be determined on an individual basis subject to approval by the approving authority.
B. 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 approving authority. The city may also make its own analyses on the wastes and these determinations shall be binding as a basis for charges. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 311, 1981.]
13.84.120 Submission of information.
Plans, specifications and any other pertinent information relating to proposed flow equalization, pretreatment or processing facilities shall be submitted for review of the approving authority prior to the start of their construction if the effluent from such facilities is to be discharged into the public sewers. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 312, 1981.]