Case Study: City of Tyler, Texas cuts wastewater costs with Minitab Lean Six Sigma

City of Tyler reduces wastewater costs by over $79,000 with Minitab

The City of Tyler, Texas, faced the challenge of providing essential public services while keeping municipal costs as low as possible. To solve this dilemma, the city utilized Minitab Statistical Software as part of its Lean Six Sigma initiatives to improve processes and reduce waste.

Using Minitab, a project team analyzed data from the Westside Wastewater Treatment Plant and determined that the dosage of magnesium hydroxide could be standardized without affecting treatment quality. This solution, implemented with the help of Minitab, reduced chemical usage variability and saved over $79,000 for this single project, contributing to a total savings of over $5.4 million from all the city's process improvement efforts.

City of Tyler, Texas