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QEEC ENVIRONMENTAL devices. In collaboration with the City, EEC has outlined a series of guidance documents geared towards assisting business owners in more clearly understanding cross -connection program requirements. An initial draft of the manual for food processing facilities has been prepared and is under review by City personnel. As assigned, EEC will continue to assist the City in the development of additional cross -connection program guidance manuals for other business sectors including services, manufacturing, medical, restricted operations, and miscellaneous other facilities. Additionally, several private and City owned properties are served by recycled water supplies. EEC can continue to support the documentation and field verification efforts for these on -site recycled water conveyance systems. These efforts will continue to be performed in close coordination with City personnel with the resulting findings and drawings being prepared in a manner suitable for import into the City's GIS database. The estimated level of effort for as -assigned cross -connection program support services is projected at approximately 150-200 hours. Potable Water Discharge Permitting and Monitoring EEC can continue to assist the City with the renewals of the permitting and monitoring associated with the City drinking water system discharges. EEC is intimately familiar with the permitting requirements and will assist the City with routine monitoring and reporting as well as permit renewals. EEC will continue to train City personnel on the monitoring and reporting requirements of this state mandated program. EEC can assist City personnel with collection and testing of required discharges and help to ensure suitable methods and protocols are adhered to. EEC can also support development of project specific discharge monitoring protocols as well as implementation proper notification procedures. The estimated level of effort for as -assigned potable water discharge permitting and support services is projected at approximately 80-100 hours. Production Well O&M Assessment and Support EEC is an expert in per- and polyfluoroalkyl substances (PFAS) consulting and is currently providing "Owners Representative" consulting support for the City as it addresses PFAS contamination in a production well. EEC's PFAS team has extensive expertise in PFAS chemistry, characterization, remediation, residual management, and its unique regulatory challenges, particularly in California. All of this expertise is being used to assist the City as it works with the Orange County Water District (OCWD) and their consultants to develop a plan to design and install wellhead PFAS treatment for the City's impacted wells. EEC already provided extensive technical and regulatory assistance to the City as it responded to a Draft Producer Report from OCWD's consultant, that addressed a variety of topics: • The significance of PFAS Notification Levels (NLs) vs. Response Levels (RLs) • Comparison of Granular Activated Carbon (GAC) vs. Ion Exchange (IX) at each potential impacted well site • Evaluating capital costs vs. on -going O&M costs • Evaluating OCWD's rapid small-scale column testing (RSSCT) and pilot testing results and the need for further pilot tests Proposal to Provide WDR Compliance Services - City of Santa Ana, RFP 20-089 20 August 4, 2020