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What is a Sewer System Management Plan (SSMP)?


T-TSA's Sewer System Management Plan, also called an SSMP, is a document that describes the activities T-TSA uses to effectively manage, operate, and maintain the Truckee River Interceptor (TRI).


Why are SSMPs Being Required Now?


Following the SWRCB's adoption of the Statewide General Waste Discharge Requirement (GWDR) on May 2, 2006, collection systems became the last major component of the wastewater management system to be regulated. Treatment plants including pretreatment programs have been regulated for some time. The GWDR applies to all public collection system agencies in California that own or operate collection systems comprised of more than one mile of pipe or sewer lines which convey untreated wastewater to a publicly owned treatment facility and requires each agency to prepare an SSMP.


What is included in an SSMP?


The Statewide GWDR requires that the following elements be included in an SSMP:

  • Goals

  • Organization

  • Legal Authority

  • Operation and Maintenance Program

  • Design and Performance Provisions

  • Overflow Emergency Response Plan

  • Fats, Oils, and Grease (FOG) Control Plan

  • System Evaluation and Capacity Assurance Plan

  • Monitoring, Measurement, and Program Modifications

  • SSMP Program Audits

  • Communication Program


The SSMP may be viewed by clicking on the following link: SSMP


SSMP Completion & Approval


The SSMP was presented to T-TSA Board of Directors for approval on July 8, 2009 at a regularly scheduled meeting. The meeting provided an opportunity for public comment. Comments to the SSMP can be provided via e-mail to

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