2021-02-24 EMC Meeting Agenda and Director's Informational Report

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Surveying work has been initiated and inspection of the Hina Lani Water Reservoir has been completed. Alii Drive Salinity Reduction Project: See Chloride Management Study (Attachment 1) for progress report. E. NORTH KONA SEWER PUMP STATION • This new sewer pump station will be located on the mauka side of Queen Ka`ahumanu Highway. It is to receive wastewater from a portion of the area below Ane Keohokalole Highway between Hina Lani Street and Kealakehe Parkway. The wastewater will be pumped to the Kealakehe WWTP via new force mains. The new sewer pump station is scheduled to be complete in December 2024. • The preliminary engineering report for the new pump station has been finalized. • The Environmental Assessment (EA) process has begun. Consultant was issued a NTP in late December 2019. Draft EA is expected to be complete by March 2021. • The county is working on land transfer from West Hawaii Business Park (WHBP) for the SPS site. WHBP received Final subdivision approval in August 2020. • The Department of Commerce Economic Development Administration (EDA) has tentatively approved grant funding for this project. 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 H2S corrosion; electrical component damage due to H2S 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 now preparing a Preliminary Engineering Report so the project can qualify for a CWSRF loan to support design and construction. • Pua Force Main (dual FMS CWSRF has approved PER and County has received Commitment Letter (11/16/2020) for supporting the design effort. Design contract is being finalized. • Repair/Replace Hilo, Kula`imano, and Papa`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. Kula`imano WWTP is nearing 45 years, Papa`ikou 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