Article V — INDUSTRIAL WASTE WATERS

No person shall discharge industrial waste waters into the sewer system of the city unless he holds an industrial waste disposal permit from the city manager. In special cases, industrial wastes may be discharged pursuant to a special use permit as provided in sections 14.28.160 through 14.28.180.

(Code 1972, § 14.24.210; Ord. No. 352, § 406A, 1970)

To obtain an industrial waste disposal permit, application shall be made to the city manager. The application shall show the kind and size of the industrial operation producing the waste water, the quantity and characteristics of the waste water, detailed plans for any pretreatment facilities designed to prevent discharge of improper materials into the sewer, and such other information as required by the city manager. The applicant shall pay a filing and processing fee of $25.00. No fee shall be required if the application is only to continue an operation existing on December 30, 1970.

(Code 1972, § 14.24.220; Ord. No. 352, § 406B, 1970)

If the city manager finds that the quality of the water and the facilities for discharge to the sewer conform to the requirements of chapters 14.12 through 14.40 and other ordinances of the city, that the pretreatment facilities are adequate, and that sewer capacity is available, he shall issue the permit. The permit shall state the nature of the industry and the nature and amount of flow which the permittee may discharge into the sewer and shall include any restrictions which the city manager finds necessary in order that the sewerage system may serve its intended purpose. A temporary permit may be issued pending application evaluation.

(Code 1972, § 14.24.230; Ord. No. 352, § 406C, 1970)

If the permittee alters pretreatment facilities or alters connections to the sewer, or seeks to discharge additional wastes or to discharge wastes in excess of the amounts for which a permit has been issued or wastes of a different kind, he shall apply to the city manager for an amended permit.

(Code 1972, § 14.24.240; Ord. No. 352, § 406D, 1970)

Permission to discharge industrial waste waters to the city system cannot be transferred with change of ownership or tenancy of a property or industrial operation. A new owner or lessee must make application for a permit to discharge, which permit will normally be granted if the industrial waste discharge remains within the limits of the previously existing permit. If, in the city manager's opinion, the change of ownership or tenancy involves a significant change in the quality or quantity of the waste discharge the application will be judged on its own merits, and a permit may or may not be issued.

(Code 1972, § 14.24.250; Ord. No. 352, § 406E, 1970)

Except as provided in sections 14.28.160 through 14.28.180, no industrial waste shall be discharged to a public sewer unless it conforms to the requirements for all discharges to public sewers. No industrial waste water flow exceeding 100 gallons in any one day shall be discharged to a public sewer unless it also conforms to the following requirements:

(1)

The content of total oil and grease shall not average more than 400 milligrams per liter in any 24-hour period;

(2)

The content of floatable oil and grease shall not average more than 25 milligrams per liter in any 24-hour period;

(3)

The standard five-day biochemical oxygen demand shall not average more than 300 milligrams per liter in any 24-hour period;

(4)

The suspended solids content shall not average more than 300 milligrams per liter in any 24-hour period;

(5)

The dissolved sulfide content shall at no time exceed one-tenth milligram per liter;

(6)

The pH shall at no time be below 6.0;

(7)

The concentration of hexavalent chromium shall at no time exceed five milligrams per liter and shall average no more than two milligrams per liter in any 24-hour period;

(8)

The concentration of copper shall at no time exceed five milligrams per liter and shall average not more than two milligrams per liter in any 24-hour period;

(9)

Such other limitations as may be imposed in the industrial waste permit.

(Code 1972, § 14.24.260; Ord. No. 352, § 406F, 1970)

Every discharge of industrial waste to a public sewer shall be routed through a manhole or sampling compartment approved or designated by the city manager, which manhole or sampling compartment at all times shall be available and accessible to authorized city personnel. This structure shall be located in such a manner as to allow easy access by the city manager at all times and shall be built and maintained at the expense of the industry using it. The piping to and from the manhole or sampling compartment shall be so arranged that observation may be made of all of the industrial sewage flow without prior admixture of any waste water from toilets, washrooms, kitchens, or lunchrooms and that the industrial sewage flow can be plugged off without impeding the flow of sewage from those other sources.

(Code 1972, § 14.24.270; Ord. No. 352, § 406G, 1970)

As conditions of issuing an industrial waste permit, the city manager may require the permittee, at permittee's expense, to do any or all of the following:

(1)

Install a measuring device and report periodically measurements of flow to the city;

(2)

Install pH recording equipment with charts to be removed only by the city manager;

(3)

Provide an impounding tank, equipped with mixing apparatus, sufficient to retain the maximum 24-hour flow;

(4)

Provide for inspection and laboratory tests as may be required by the city manager;

(5)

Report to the city manager the amount of materials processed by the industry.

(Code 1972, § 14.24.280; Ord. No. 352, § 406H, 1970)

(a)

An industrial waste discharge permit may be revoked on any of the following grounds:

(1)

Failing to comply with the provisions or conditions of the permit;

(2)

Failing to comply with the provisions of chapters 14.12 through 14.40, or any other applicable ordinances or statutes governing the discharge of industrial liquid waste or waste water into the sewerage system of the city;

(3)

Willfully supplying false or misleading information in the application;

(4)

Causing a nuisance in the operation of the sewerage system.

(b)

The city manager shall give notice, in writing, specifying the manner in which there has been failure to comply with the provisions or conditions of the permit, or the manner in which the discharge constitutes an unreasonable burden in the operation of the sewerage system, and shall specify a time within which the discharger shall remedy the condition. If, within the time specified in the notice, the condition is not remedied, the city manager shall revoke the permit and cause the industrial waste water outlet to be plugged.

(Code 1972, § 14.24.290; Ord. No. 352, § 406I, 1970)