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i of Santa Ana Section II: Sewer! Plan Requirements iv. Installation of adequate backup equipment; and v. Inflow and infiltration prevention and control to the extent practicable. f. The sanitary sewer system design capacity is appropriate to reasonably prevent SSOs; and g. The City took all reasonable steps to stop and mitigate the impact of the discharge as soon as possible. 7. When a sanitary sewer overflow occurs, the City shall take all feasible steps and necessary remedial actions to 1) control or limit the volume of untreated or partially treated wastewater discharged, 2) terminate the discharge, and 3) recover as much of the wastewater discharged as possible for proper disposal, including any wash down water. The City shall implement all remedial actions to the extent they may be applicable to the discharge and not inconsistent with an emergency response plan, including the following: a. Interception and rerouting of untreated or partially treated wastewater flows around the wastewater line failure; b. Vacuum truck recovery of sanitary sewer overflows and wash down water; c. Cleanup of debris at the overflow site; d. System modifications to prevent another SSO at the same location; e. Adequate sampling to determine the nature and impact of the release; and f. Adequate public notification to protect the public from exposure to the SSO. 8. The City shall properly manage, operate, and maintain all parts of the sanitary sewer system owned or operated by the City, and shall ensure that the system operators (including employees, contractors, or other agents) are adequately trained and possess adequate knowledge, skills, and abilities. 9. The City shall allocate adequate resources for the operation, maintenance, and repair of its sanitary sewer system, by establishing a proper rate structure, accounting mechanisms, and auditing procedures to ensure an adequate measure of revenues and expenditures. These procedures must be in compliance with applicable laws and regulations and comply with generally acceptable accounting practices. 10. The City shall provide adequate capacity to convey base flows and peak flows, including flows related to wet weather events. Capacity shall meet or exceed the design criteria as defined in the City's System Evaluation and Capacity Assurance Plan for all parts of the sanitary sewer system owned or operated by the City. 11. The City shall develop and implement a written Sewer System Management Plan (SSMP) and make it available to the State and /or Regional Water Board upon request. A copy of this document must be publicly available at the City's office and /or available on the internet. This SSMP must be approved by the City Council at a public meeting. 12. In accordance with the California Business and Professions Code sections 6735, 7835, and 7835.1, all engineering and geologic evaluations and judgments shall be performed by or under the direction of registered professionals competent and proficient in the fields pertinent to the required activities. Specific elements of the SSMP that require professional evaluation and judgments shall be prepared April 2014 II -3 55CC -14