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

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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 3. Replace the existing process with a similar one on the existing WWTP site. NTP issued 09/14/20. Condition assessment field work was completed the week of 12/14/2020. Report is being prepared with draft report due late February 2021. Other repair projects that are in the works: • Hilo WWTP Headworks, Septage Receiving Station, and Primary Clarifier upgrades; • Hilo Biotower Repairs: replace feed pumps and replace distribution arms and drives; • Hilo WWTP: repair anaerobic digesters, dewatering units, and sludge drying; • Kula`imano WWTP: repair headworks, secondary clarifiers, activated sludge reactors, and aerobic digesters; • Papa`ikou WWTP: repair headworks, secondary clarifier center drive; • Ke6pu SPS/FM Relocation and Replacement; • Hale Halawai Force Main Replacement; and • Kealakehe WWTP Headworks and Kealakehe SPS/FM Upgrades. G. ULU WINI (KALOKO) WASTEWATER TREATMENT PLANT: • WWD continues to maintain stability of the treatment plant with the goal of achieving consistent operating performance to meet the regulatory as well as expected effluent limits. The treatment system currently meets DOH regulatory requirements, and nutrient removal is taking place. The longer term goal being considered is to install a gravity sewer line in Hina Lani Street that connects to the existing dry sewer in Queen Ka`ahumanu Highway as part of the North Kona Sewer Pump Station project. The Ulu Wini Housing community would connect to the gravity line, and the existing Kaloko WWTP would be decommissioned. • State DOH UIC annual Inspection on 06/18/19 issued an unacceptable O&M rating. County has begun the second phase of the Affirmative Action Plan's work on the WWTP. In this phase, WWD will be recommending what improvements to the WWTP can help run this facility until the new North Kona SPS can be completed (2024). • DEM WWD is working with OHCD in obtaining a CDBG grant ($1.3 million) to fund the purchase of a 40,000 gpd package WWTP to replace the existing plant. H. UPDATE ON WATER SHUT-OFF FOR NON PAYMENT OF SEWER BILLS: DEM is currently drafting administrative rules for the implementation of water shut- off for non-payment of sewer fees. The Department of Water Supply (DWS) is also