Res 2015-012/Wastewater Master Plan

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Wastewater Master Plan City of San Marcos EXECUTIVE SUMMARY 1.0 INTRODUCTION Executive Summary The City of San Marcos is a rapidly growing community located in central Texas, within Hay County. The City currently provides wastewater service to over 46,000 people. The population within the wastewater service area is projected to grow by almost 32,000 people in the next 22 years. Accommodating this growth, by adding capacity where needed within the existing service area and extending infrastructure to new service areas in accordance with the City's Comprehensive Plan, in an efficient and cost effective manner is the focus of this Wastewater Master Plan. This report has been prepared to provide the City of San Marcos a planning tool that will serve as a guide for short -term and long -term improvements to the infrastructure within the wastewater system. 2.0 POPULATION AND WASTEWATER FLOWS The performance of the San Marcos wastewater collection system is dependent on the amount of flow being conveyed through the system currently and in the future. To determine locations where future wastewater system improvements are necessary, existing and future wastewater load projections must be developed. In 2012, the City developed a new comprehensive plan entitled Vision San Marcos: A River Runs Through Us, which included population projections through 2035. These projections were utilized to determine the overall population in the wastewater service area for each planning year by adding the growth identified in the comprehensive plan to the existing 2013 population. It was assumed that the number of employees would grow at the same rate as the population. The population and employment projections are shown in Table ES -1. Table ES -1: Population Projections ES -1 ' ; ` ' dot ;; +ttrf „;,,;, ,,, ,,,,,, ::: „ , , Errs „ ,;,..... �oYerf ,,,,, ,,, a.... „° ua1 ES -1