2020-07-22 EMC Meeting Agenda and Director's Informational Report

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• The Environmental Assessment (EA) process has begun. Consultant was issued a NTP in late December 2019. Draft EA is expected to be complete by August 2020. • The county is waiting for land transfer from West Hawaiʻi Business Park (WHBP) for the SPS site. WHBP needs to subdivide land before transfer to the county. Land transfer is expected to occur by June 2020. Currently WHBP is still waiting for subdivision approval. F. FACILITY REPAIR/EQUIPMENT REPLACEMENT PROJECTS: • Pua Sewage Pump Station (SPS) Upgrade: Design items for additional upgrades needed besides pump replacement at the Pua SPS are being worked into a new contract. It will include a complete renovation, including structural, electrical, and mechanical upgrades to the pump station. Cause for renovation is due to deterioration of the wet well from HS; electrical component damage due to HS 22 corrosion and the overall age of the facility; and mechanical damage due to faulty discharge line valves due to hydraulic surging. Work is to include upgrading the HVAC; replacing/upgrading components of the electrical system; replacing corroded duct work; upgrading the wet well level control system; and improving on safety issues by eliminating fire and electrical hazards to achieve compliance with NFPA 820 and 70E. DEM is applying for a CWSRF loan for the design effort. • Pua Force Main (dual FM): Design will be simultaneously performed with the Pua SPS project because of the hydraulic surging/water hammer issues. DEM is applying for a CWSRF loan for the design effort. • Lanihau SPS Force Main Replacement: Construction bids have been received and anticipated NTP to construction contractor (JW Glover) is on 06/10/20. Project will replace approximately 800 lineal feet of pipe form the Lanihau SPS and connect to the manhole at the Palani Road and Kuakini Street intersection. Construction is scheduled to commence in early August and complete by late September 2020. • Repair/Replace Hilo, Kulāʻimano, and Pāpa’ikou WWTP Programmatic Plans: All three WWTPs are nearing the end of their useful life along with being located in corrosive atmospheres, expediting the aging process. Kulāʻimano WWTP is nearing 45 years, Pāpaʽikou is nearing 37 years, and Hilo is nearing 30 years. The work will first conduct a condition assessment to develop a repair and replacement/upgrade (R&R) 20-year cost projection of what unit processes or major equipment should be repaired, replaced or upgraded. Included in this condition assessment phase is a process optimization evaluation to identify the strategies that can be incorporated into the design to reduce operating costs, improve process control, and increase digestion volatile solids reduction. Inherent to this optimization effort will be to review flows and loads projections and process modeling. The three major planning directions the county desires to evaluate are: 1. Whether the county should repair the existing WWTP; 2. Replace the entire WWTP with a new WWTP; or 13