caldwell county regional water and wastewater planning study

SECTION 13REGIONAL WASTEWATER PLANNING13.1 IntroductionRegional wastewater planning is needed with the expected growth in CaldwellCounty. Evaluation of several options regarding collection treatment systems wasnecessary to provide recommendations for planning and implementation.Identifying the existing facilities in the county was a task necessary to understandthe current systems and identify needed improvements or changes.13.2 Existing Wastewater Collection SystemsLockhart and Luling are the two municipalities that currently provide wastewatercollection services. The remainder of the county is rural with septic systems inuse. As previously mentioned, Lockhart has two facilities that treat a combinedflow of 2.6 MGD and Luling also has two plants that treat a combined flow of 1.1MGD. Three of the four treatment plants discharge into Plum Creek. One plantfrom Luling discharges into the San Marcos River.Areas outside city limits and in unincorporated areas utilize on-site sewagefacilities (OSSF) also known as septic systems. Septic system use in CaldwellCounty for urban regions and undeveloped portions of the county is typical andhas steadily risen since 2005. The Director of Sanitation for Caldwell Countyprovided the data shown in Table 13-1 and Graph 13-1. The numbers of SepticSystem Certificates of Completion are listed for the last ten years.Klotz Associates Project No. 0972.000.000January 201013-1Caldwell County Regional Water and Wastewater Planning StudyFinal Report