Res 2014-048/2014 submittals to the Texas Water Development Board

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requires that entities applying for or receiving financial assistance of more than $500,000 develop, submit and implement a water conservation plan. 2.0 System Profile The City of San Marcos Water/Wastewater Utility is comprised of several components including groundwater pumping stations, a surface water production and treatment system, a water distribution system, a wastewater collection system, and a wastewater treatment facility. Over 50 City employees and contractors work to maintain these systems. The groundwater system is comprised of eight Edwards Aquifer wells. This system includes several wells from the former Elim Water System which was purchased by the City in 1997, as well as one well from the former Diamondpure Water System which was purchased in 2008. On average, the wells produce 0.51 MGD, providing less than one tenth of the City's annual water usage. The Regional Surface Water Treatment Plant began operation in January 2000 and has helped to drastically reduce the City's reliance on the Edwards Aquifer. The 20 mile long raw water pipeline and water treatment facility are operated and maintained by the GBRA. In 2008 the plant was expanded to operate at 21 MGD in order to accommodate additional users north of San Marcos. The facility currently produces about 6.1 million gallons of potable water per day for San Marcos, supplying over ninety percent of the City's water needs. The City maintains about 265 miles of water pipelines, ranging in size from 1.5 inch diameter water lines to 24 inch diameter mains. Eight storage tanks provide a combined storage capacity of approximately 5.4 million gallons. The City maintains approximately 217 miles of wastewater collection mains, with 39 lift stations. The mains deliver wastewater to a 9 MGD wastewater treatment plant. Because much of the treated wastewater is discharged into the San Marcos River, the City is required to meet one of the most rigorous discharge permits in Texas. The wastewater receives advanced tertiary treatment in order to meet the 5- 5 -6 -2 -1 treatment quality standard. The plant is currently operated by CH2M HILL.