2025-06-27 PL-INT-2025-010858 Brown and Caldwell - Category PL.5

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County of Hawaii,Planning Dept. Section E PL.4)Community Planning(Community/Regional Plans,General Plan,Climate Adaptation) Fiscal Year 2025-2026 d. (1)TITLE AND LOCATION(City and State) (2)YEAR COMPLETED Waikoloa K-Plant Effluent Disposal,Waikoloa, Hawaii PROFESSIONAL SERVICES CONSTRUCTION(if applicable) Ongoing Ongoing (3)BRIEF DESCRIPTION(Brief scope,size,cost,etc.)AND SPECIFIC ROLE❑x Check if project performed with current firm Senior Modeler. BC is tasked with evaluating feasible disposal methods for both current disposal and future disposal demands that meet wastewater and land use regulations, but also the unique soil and topography conditions of the site. Methods to be evaluated include soil aquifer treatment(SAT), expansion of the existing leachfields, and reuse. Activities will include soil investigation and percolation testing to determine the appropriate design hydraulic loading rate for the soil conditions. Upon completion of the feasibility evaluation, BC will design the preferred effluent disposal option that will include improvements such as pump station, piping,and earthwork.Additional services to support the project include Archeological Inventory Study and Unexploded Ordinances field work safety support. Total Contract Amount: $1M Client: Hawaii Water Service Company e. (1)TITLE AND LOCATION(City and State) (2)YEAR COMPLETED Hare Snipe Creek Watershed Study, Raleigh, North Carolina PROFESSIONAL SERVICES CONSTRUCTION(if applicable) 2023 N/A (3)BRIEF DESCRIPTION(Brief scope,size,cost,etc.)AND SPECIFIC ROLE❑x Check if project performed with current firm QA/QC Reviewer. BC provided integrated flooding mitigation and water quality planning,while establishing standards for conducting future watershed studies within the City.The study was guided by the Equity Framework,which established City staff goals and priorities to integrate more equitable practices into watershed study development. BC piloted stream assessment technologies to evaluate results and provide a recommendation for the remaining stream assessments. BC developed a PCSWMM model to identify areas of flooding and developed a spatial water quality model, WIP Tools,to calculation nutrient and sediment loadings. BC identified over 60 project concepts that were evaluated to reduce flooding and/or provide water quality benefits. BC also developed a methodology document to guide consistent future watershed studies. Total Contract Amount: $1M Client:City of Raleigh, Engineering Services Dept. IBrown AND Caldwell STANDARD FORM 330(REV.7/2021) : 18