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Enviro-Stewards is an engineering firm and Certified B Corporation that helps clients increase their profits, sustain the environment and compellingly benefit society. For example, at a medium sized winery we identified in-plant measures that reduced the volume and strength of the wastewater generated by the facility by 1/2 and 2/3, respectively. We then designed energy efficient wastewater pretreatment facilities that consistently meet sewer bylaw limits and cost half as much to build and operate as a system sized for the original design basis.