City of Spokane

Spokane Municipal Code

***Note: Many local criminal codes can now be located under Chapter 10.60 SMC while others are now cited under the Revised Code of Washington (RCW), which was incorporated into the municipal code in 2022. (See SMC 10.58.010). Code Enforcement, including Noise Control and Animal Regulations are located in Chapters 10.62 through 10.74.

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Title 13
Chapter 13.03A
Section 13.03A.0210
 

Title 13 Public Utilities and Services

Chapter 13.03A Pretreatment

Article II. General Requirements

Section 13.03A.0210 Additional Pretreatment [2.10]
  1. Whenever deemed necessary, the Plant Manager may require users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage (domestic wastewater) from industrial wastestreams (industrial wastewater), and such other conditions deemed necessary to protect the POTW and determine a user’s compliance with this chapter.
  1. Each user discharging greater than one hundred thousand gallons per day, or lower volumes where determined by the Plant Manager, shall install and maintain, on its property and at its expense, a suitable storage and flow-control facility to insure equalization of flows over a twenty-four hour period. The facility shall have a capacity for at least twenty-five percent of the daily discharge volume of the user and shall be equipped with alarms and a rate of discharge controller, subject to Plant Manager approval and regulation. A wastewater discharge permit may be issued solely for flow equalization.
  1. Grease, oil, and sand interceptors (interception units) shall be installed whenever determined necessary by the Plant Manager for proper handling of wastewater containing excessive amounts of such substances, except that such interceptors shall not be required for residential users. Interception units are subject to the control and regulation of the Plant Manager and must be inspected, cleaned, and kept in good repair by the user.
  1. Users with a potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
  1. All users are required to adhere to the City of Spokane Department of Wastewater Management Industrial Pretreatment Program Mercury Control and Abatement Plan.

NOTE: Bracketed enumerations reference the numbering in the EPA Region 10 Model Ordinance of March 27, 2012.

Date Passed: Monday, November 9, 2020

Effective Date: Wednesday, December 16, 2020

ORD C35961 Section 19