EPA Region 6 issued an Administrative Order (AO) to Republic Water Haulers (Respondent). EPA Region 6 issued the AO under its authority pursuant to Section 1414(g) of the Safe Drinking Water Act to Respondent at its water system in Spring, Texas. The AO was issued in response to violations of the Revised Total Coliform Rule (RTCR). The AO requires Respondent to complete the required RTCR monitoring and submit required documentation to the Texas Commission on Environmental Quality.