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PEC presents Kechi sanitary sewer and water master plans with 20-year growth scenarios
Summary
PEC engineer Trevor Kaufman presented Kechi’s sewer and water master plans, outlining 20-year demand projections, two growth scenarios (steady and phased) that include up to 320 acres of potential residential growth, and the main system deficiencies and improvement options.
Trevor Kaufman of PEC presented the sanitary sewer and water master plans and said the studies use a 20-year planning horizon to identify system deficiencies and improvements. Kaufman said the team used March 2022 flow data for baseline sewer evaluation and reported “the average flow rate is about 128,000 gallons a day.” He explained that the water analysis focuses on pressures, fire flows and hydrant coverage while sewer planning targets peak wet-weather flows because gravity systems must convey maximum flows without backing up.
Kaufman described two ways the team modeled future demand: a steady, constant-growth scenario and a scenario-based phased approach that isolates two growth areas (A and B). Combined, the scenarios account for about 320 acres of residential growth. He noted KDHE assumptions were used for demand factors and a default peaking factor of three for sewer peaks, but added that local measured data can replace defaults where available. Kaufman said the choice between scenarios depends on the city’s growth goals and that those goals strongly influence what infrastructure is built and when.
