Laserfiche WebLink
EXHIBIT "A" <br />AMENDED SCOPE OF SERVICE <br />The City of Redlands (City) owns and operates a WWTP with a rated treatment capacity of 9,5 <br />mgd annual average flow. Approximately 6 mgd of that capacity is in an MBR system; the <br />remaining 3.5 mgd is in a <br />conventional activated sludge <br />process (ASP). Of the current 5.5 <br />mgd annual average flow <br />received at the WWTP, about 3,5 <br />mgd is treated through the MBR <br />system, and the rest is treated <br />through ASP. Considering the <br />0.8% percent per year population <br />growth rate per the City of <br />Redlands General Plan 2035, the <br />projected flows by 2030 (the <br />Redlands WWTP Projected Annual Average Flows (mgd) <br />10.0 <br />9.0 <br />2030 Flow <br />8.0 <br />__..�.. <br />6.1 mgd......__..�..�..w.�...,.�..,_._ <br />7.0 <br />. <br />12 6.0 <br />5.0 <br />...m.-�.^...,""""".�.�< <br />.---'-^" <br />R- <br />G.6 mgd <br />Year <br />7.7 mgd <br />Year 2060 <br />2040 <br />%' 4.0 <br />K <br />§ 3.0 <br />c <br />c <br />< 2.0 <br />— <br />10 <br />Assumptions' <br />2018AAF-5.5mgd <br />0.8%growth rate <br />0.0 <br />2010 <br />I <br />2020 2030 <br />2040 <br />Year <br />2050 <br />2060 <br />. <br />2070 <br />current planning horizon) are expected <br />well below the rated treatment capacity of 9.5 <br />mgd (Figure 1). <br />Scope of Services <br />to <br />be <br />FIGURE 1. REDLANDS WWTP PROJECTED ANNUAL AVERAGE FLOWS <br />The scope of work described in this document includes work that was completed as part of the <br />Phase 1 project, as well as summarizes tasks and associated deliverables for the Phase 2 project. <br />The implementation of the modified and negotiated scope of work presented herein will: <br />• Maximize return on investment <br />• Provides higher level of reliability and redundancy <br />• Simplify operation by operating one state-of-the-art system (MBR) for the rated 9,5 mgd <br />capacity <br />• Defer proposed year 2030 upgrades for several years, meaning significant capital <br />expenses savings in near future <br />• Provide higher operational flexibility <br />• Eliminate permit noncompliance issues by producing high quality recycled water that <br />complies with permit requirements at all times and is suitable for multiple recycled water <br />uses <br />• Bring significant energy savings <br />3 <br />L:\ca\Agreements\Second_Amendnlent_to_Parsons_Agreement FY22-005 1 ,docx-jm <br />