On April 10, 2026, EPA Region 6 Issued an Administrative Order (AO) to Deer Creek (Respondent). The Order was issued in response to the system's failure to develop a Lead Service Line Inventory (LSLI), pursuant to the Lead Copper Rule Improvements (LCRI). Per the Order, systems are required to develop an adequate LSLI, submit the inventory to the state, and if applicable issue a public notice for their failure to develop the LSLI by the statutory due date of October 16, 2024.