Sewer Master Plan

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Wednesday, April 4, 2012

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Version: January 2011


This report is intended to serve as a General Sewer and Facilities Plan (GSP/FP) for the City of
Kelso, Washington. This GSP/FP:

  1. establishes the sewer service area and the physical and environmental conditions within the service area,
  2. develops estimates of population and wasteloads for the service area that must be treated,
  3. presents an inventory of the existing collection system and identifies future interceptors and pump stations that will be required to serve the planning area,
  4. evaluates the performance and adequacy of the Three Rivers Regional Wastewater Plant(TRRWP) to handle sewage from Kelso,
  5. evaluates the need for an Infiltration and Inflow (I/I) removal program,
  6. presents an evaluation of the existing collection system and makes recommendations for required improvements to alleviate surcharging sewer mains, as well as required pump station upgrades.

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