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EEC ENVIRONMENTAL The estimated level of effort for as -assigned stormwater compliance support services is projected at approximately 80-100 hours. Project Management and Assistance EEC can continue to assist the City with managing a wide variety of projects including WDR compliance deadlines, sewer system characterization and investigation activities, and drinking water distribution and discharge. As -assigned, EEC will conduct regular meetings with City personnel to provide updates and discuss project status. EEC will continue offer qualified personnel to supplement the City's resource support needs ranging from development of innovative software solutions to composing requests for proposals. EEC personnel have been involved in many aspects of City's water engineering and development, including plan preparation, cost estimates, and specifications for a variety of projects pertaining to water and sewer applications. EEC personnel have assisted in updating system management maps and records as well as assisting in project oversight and interfacing with other governmental agencies and contractors. EEC personnel will continue to collaborate with treatment and distribution operators to facilitate decisions regarding treatment and distribution parameters, settings, and general operations. EEC will also continue to support coordination of permits and annual renewals for dewatering permits, encroachment permits, National Pollutant Discharge Elimination System (NPDES) permits, and South Coast Air Quality Management District (SCAQMD) permits. The estimated level of effort for as -assigned project management and assistance services is projected at approximately 400-500 hours. 4. General Sewer System O&M Support Source Identification. Prioritization. and Remediation - Having studied more than 300 enhanced maintenance locations and identified numerous individual sources of FOG blockages in California, EEC has developed and provides unique expertise in assessing sewer system issues and developing corrective action plans, including source identification and mitigation. Public agencies frequently hire EEC to conduct such characterization studies and use the resulting data to prioritize FSE inspections, improve cleaning and tracking of EMLs, and inform SSO contingency plan development for high -risk pipelines. When an issue is identified in the sewer system, EEC will conduct the following general steps to ensure a thorough investigation is conducted. 1. EEC will coordinate CCTV inspection of the area. The line will be typically be inspected in its current condition, then re -inspected after cleaning to establish a baseline of the clean line. If suspicious materials that can not be clearly identified are noticed, EEC will collect samples of the materials for further analysis. 2. After a set period of time, EEC Will coordinate follow-up CCTV activities at the location in an attempt to clearly identify the source of the issue. With FOG accumulation, a visible trail will typically accumulate at a specific lateral connection, often leading to identification of the source. 3. Once the source is identified. EEC will work with the City to mitigate that source which could include meeting with the facility and/or conducting routine inspections, or other elevated enforcement actions. Proposal to Provide WDR Compliance Services - City of Santa Ana, RFP 20-089 22 August 4, 2020