PL-INT-2023-005629 06.30.23 CAROLLO ENGINEERS INC CAT PL.4

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FIRM OVERVIEW AND BACKGROUND Climate Change/Resilience/Sustainability Carollo has been on the leading edge Representative Climate Change/Resilience/Sustainability projects addressing impacts of climate change across the United States—both mitigation(reporting and managing greenhouse gases[GHG])and Client/Project adaptation.For over a decade,we have been City and County of Honolulu,HI/Sand Island Sewer Basin Facilities Plan assessing the vulnerabilities of and working Port of San Francisco,CA/Seawall Resiliency Project to embed resiliency measures into projects to Metropolitan Wastewater Management Commission,OR/Resiliency Plan protect our client's assets while maintaining City of New York City,NY/Value Engineering for Rockaway Wastewater service to customers and regulatory Treatment Plant Vulnerability compliance.Carollo provides a broad range Southeast Florida Coastal Resiliency Partnership,FL/Vulnerability Assessment Framework of services to accommodate the needs of City of Los Angeles Bureau of Sanitation,CA/One Water LA 2040 Plan each client,including: City of Oxnard,CA/Integrated Master Plan San Francisco Public Utilities Commission,CA/Sewer System Master Plan • Integrated"One Water"Planning. City of Santa Barbara,CA/Water Supply Plan • Water Supply Planning. City of Riverside,CA/Integrated Water Plan Wastewater Treatment Planning. Central Contra Costa Sanitary District,CA/Vulnerability to Sea Level Rise • Central Marin Sanitation Agency,CA/Vulnerability to Sea Level Rise o • Value Engineering. City of Phoenix,AZ/Verde Water Treatment Plant Demolition(Platinum Award and z Certification) Vulnerability Assessments. o • City of Los Angeles Bureau of Sanitation,CA/Hyperion Treatment Plant Digester I • GHG. Gas Utilization(Platinum Award) City of Los Angeles Bureau of Sanitation,CA/Terminal Island Advanced Water D • Emissions Inventorying and Management. 1 Purification Facility(Platinum Award) ,— • Resilience Planning and Design. San Francisco PUC,CA/Southeast Plant Headworks(Platinum Certification in process) z z • Mandatory GHG Emissions Reporting c 0 (Federal and State). • Advocacy(Federal,State,Local). .a -173 T. 'k,,s' 3 pi i• - - z • Resource Conservation and Recovery. r' ': ,Jr • • Energy Management Advocacy(Federal, -,,.,. - o • T State,Local). U) U) 5 • Resource Conservation and Recovery. City and County of Honolulu,HI San Francisco Public Utilities cn • Energy Management. Sand Island Sewer Basin Commission,CA 7, Facilities Plan 30-year Sewer System Master Plan o Carollo performed a climate change,storm Development of alternatives for the master plan N For the Sand Island Sewer surge,and tsunami analysis with a planning addressed both adaptation and mitigation of N Basin Facilities Plan, Carollo horizon through the year 2100 as an element of impending global climate change.An analysis was 1 a comprehensive wastewater facilities planning performed of current and projected changes in sea performed a comprehensive effort for the Sand Island Sewer Basin.The level and local precipitation patterns.Estimates ofo climate change evaluation analysis took into account the Mayor's Directive greenhouse gas emissions were also performed for o of the City's wastewater as well as the latest climate change science alternatives to serve as a basis of comparison.In z related to sea level rise and coastal erosion. addition,the plan included an extensive literature —1 facilities. The results -< Risks,triggers,and impacts to critical wastewater review and data analysis. illustrated potential impacts collection and treatment assets within the z to critical wastewater basin were identified.Vulnerable facilities were The overall result was the development of Z facilities due to sea level riseFri prioritized and potential improvements,hardening, short-and long-term solutions for adapting to and/or relocation scenarios were developed. changing conditions.Specific recommendations and other flooding threats. included modification certain critical coastal a The work also included an assessment of the facilities,changes in operations strategies, D ability of the City to effectively implement recovery implementation of green technology and low efforts following a disaster,such as extreme impact development,consideration of changing -1 flooding due to a hurricane or tsunami. design storm guidelines,and reexamination of o z project precipitation patterns every five years. CAROLLO / QUALIFICATIONS / JUNE 2023 32 B:A Pursuits VClient83(HON),HawaiiCounty\EnvMgmtDept On-Call FY23-24V0ua10623VPL.4 CmntyPIng_CmntAinddAO1_FirmOverview_PL4