Document VyNKMj8a1m3GdODywEkEQD2N

January 10, 2025 Chico Holliday Confederated Tribes of the Warm Springs P.O. Box 1196 Warm Springs, OR 97761 Failure to Complete Tier 2 Public Notification Requirements, Sidwalter, PWS ID 104101101 Dear Mr. Holliday: Sidwalter water system failed to meet the requirements of Tier 2 Public Notification (PN), which constitutes a violation of the National Primary Drinking Water Regulations 40 CFR 141.203. On 11/12/2024, Sidwalter received a Notice of Violation letter for Failure to Complete an Initial Lead Service Line Inventory. In this letter, PN requirements were outlined, and instructions, a template, and a certification were provided. Tier 2 PN must be delivered as soon as practical but no later than 30 days after the system learns of the situation [40 CFR 141.203(b)(1)]. Sidwalter failed to meet this requirement. Notifying customers in a timely manner of the situation is important so that customers can take proper precautions. A copy of the PN that was delivered, along with a certification that the Public Water System complied with all PN requirements must be submitted to the Environmental Protection Agency (EPA) within 10 days after providing PN to customers [40 CFR 141.31(d)]. Sidwalter failed to meet this requirement. To return to compliance Sidwalter must deliver a PN to customers and submit a copy along with the certification to R10TribalDW@epa.gov as soon as possible. This letter serves as initial notification of non-compliance under the Safe Drinking Water Act for the regulation and time period cited. EPA supports compliance assistance and encourages early action to return to compliance. Issues not addressed in a timely manner may be referred to enforcement. Prior to an enforcement action for the cited violation(s), EPA Region 10 will offer government-togovernment consultation, in accordance with the EPA Policy on Consultation and Coordination with Indian Tribes. A list of all violations and their status can be viewed at any time by visiting Drinking Water Watch: https://sdwisdww.epa.gov/DWWR10/. Please contact R10TribalDW@epa.gov with questions. Sincerely, BRIAN NICKEL Digitally signed by BRIAN NICKEL Date: 2025.01.10 17:24:17 -08'00' Brian Nickel Manager Groundwater and Drinking Water Section cc: Ronald Palmer, Confederated Tribes of the Warm Springs Jason Davis, Indian Health Service 2