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4 <br /> Slide #3 <br /> WaterTreatment Construction Update <br /> • Two Major Construction Projects <br /> • Clearwell — Moving Forward <br /> • PFAS Water Treatment— Deferred <br /> • Evaluation of Other Over-Arching PFAS Issues <br /> • Residuals from Water and Wastewater Treatment <br /> • Guiding Principals that Consider Public Health, <br /> Environmental Protection,and the Cost of Water <br /> 0 <br /> • Community Engagement p <br /> 0 <br /> 0 <br /> Michael Hughes provided a construction update on two major projects: the Clearwell and <br /> PFAS treatment facilities. OWASA decided to decouple these projects, proceeding with the <br /> Clearwell construction while deferring PFAS treatment. This decision was based on staff <br /> successfully managing treatment processes to meet proposed regulatory limits, deferred <br /> regulations, site constraints, and the need to address broader PFAS issues, including residuals <br /> management and landfill leachate concerns. <br /> Slide #4 <br /> Clearwelt Project Timetine <br /> _--qLI <br /> Pause for Board Direction Smonths B."plr•`�I°" I <br /> x I N.L Yub N I 1 .=coh l Path <br /> New Basis of Design 6 months o'w" T" I <br /> x General Design 14 months fj}-P-4- <br /> • 30%Design 5months I rmso.+k" I i <br /> 60%Design 5 months <br /> 90%Design 4months d°96 ows" <br /> r PWS Permitting 6 months I °w%°••sr•°a <br /> e Special Use Permit 13 months kal u- <br /> ' .Site Permitting 5 months I I <br /> Final Design 1 month <br /> " Bldding 4 months I 01" <br /> a Construction 33 m_onths <br /> 20M 2D27 2D28 2029 2030 2031 <br /> Michael Hughes said if started now, the Clearwell project would run through 2031. <br />