§ 28-209. Pretreatment facilities requirements.

(a)

Users shall provide wastewater treatment as necessary to comply with this article and shall achieve compliance with all categorical pretreatment standards, local limits, and prohibitions set out in division 2 of this article within the time limitations specified by EPA, the state, or the director, whichever is more stringent.

(b)

Plans, specifications and operating procedures for such wastewater pretreatment facilities shall be prepared in accordance with accepted engineering practices and signed by a professional engineer registered in the state and shall be submitted to the director for review. The director shall review said plans within sixty (60) days and shall make appropriate comments to the user. Prior to beginning construction of said pretreatment facility, the user shall also secure such building, plumbing or other permits that may be required by the city or any other regulatory authority having jurisdiction.

(c)

An industrial user shall, at its own expense, design, construct, operate, and maintain such wastewater pretreatment facilities whenever necessary to reduce or modify the user's wastewater strength set forth in this article, to meet applicable pretreatment standards, or to meet any other wastewater condition or limitation contained in this article.

(d)

The director may require users to restrict their discharge during peak flow period, designate that certain wastewater be discharged only into specific sewers, relocate, consolidate, or both, points of discharge, separate sewage wastestreams from industrial wastestreams, and such other conditions as may be necessary to protect the WWF, or to protect the health and safety of employees of the WWF and determine the user's compliance with the requirements of this article.

(e)

The director may require grease traps, oil traps, or sand traps, separators, or both, when deemed necessary. The interceptors shall be installed by the industrial users when they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand or other harmful ingredients. All traps, separators, or both shall be of a type and capacity approved by the director based on industry standards, and shall be located as to be readily and easily accessible for cleaning and inspection.

(1)

All traps, separators, or both, shall be pumped and cleaned by a licensed liquid waste hauler at least three (3) times per year and as often as necessary to prevent grease from entering the city's sanitary sewer system as evidenced by grease residue in the cleanout. Receipts for pump-out and cleaning services must be retained for two (2) years and be available for inspection by the city upon request.

(2)

No bacterial or enzymatic treatment that improves the discharge flow shall be a partial or complete substitute for adequate maintenance.

(f)

Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.

(Ord. No. C-98-61, § 3, 10-20-98; Ord. No. C-17-13 , § 1, 6-20-17)