Profile: Lakota Water Company delivers basic potable water systems and rainwater collection (rainwater harvesting) systems. Our rainwater collection & harvesting systems can be described as channeling the rainwater in gutters and through piping into a storage tank for later use. We supply filters, softeners and chlorinators. We offer residential water treatment service to central Texas communities. Our residential water treatment consists of installation and maintenance of water softeners, water filtration & water chlorinators.