Item 07 - Sewer System Management Plan 2025 Update

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of Santa Ana Section 10: Internal Audits Section 10: Internal Audits Section 10 of this SSMP addresses the requirements included in Attachment D-10 o the Order. The requirements state: Internal Audits: The Plan shall include audit procedures, appropriate to the size and performance of the system, for the Enrollee to comply with section 5.4 (Sewer System Management Plan Audits) of the General Order. The City will submit its SSMP Audit and other pertinent audit information, in accordance with Section 5.4 (Sewer System Management Plan Audits) of the Order, to the online CIWQS Sanitary Sewer System Database by six (6) months after the end of the 3-year audit period. The City shall conduct internal audits at a minimum frequency of once every three (3) years, evaluating its SSMP and its compliance with the requirements of Order No. 2022-0103-DWQ. The audit will use data collected as part of Section 9 — Monitoring, Measurement, and Program Modifications and performance indicators to identify and correct SSMP deficiencies in the Audit Report. Audit Reports are available upon request. The internal audits include, but are not limited to the following: • A review of this SSMP document to ensure compliance with the regulations established in the State Water Resources Control Board's Order No. 2022-0103-DWQ.; • A review of any supporting documents listed in this SSMP; • SSMP implementation efforts over the past two (2) years; • A description of additions and improvements made to the sanitary sewer collections system during the past three (3) years; • A description of additions and improvements planned for the upcoming three (3) years; • A list of deficiencies, if identified, and a plan to correct the identified deficiencies. Per Attachment E1 of the WDR Order, if an SSMP audit is not conducted as required, the Enrollee shall: • Update the online CIWQS Sanitary Sewer System Database and select the justification for not conducting the Audit; and • Notify its corresponding Regional Water Board of the jurisdiction for the lapsed requirements. The Enrollee's reporting of a justification for not conducting a timely Audit does not justify non-compliance with the General Order. The Enrollee shall: • Submit the late Audit as required in the General Order; and Comply with the subsequent Audit requirements and due dates corresponding with the original audit cycle. 2025 10-1