Introduction

Updating Hawai‘i’s Cesspool Prioritization and Timeline Strategy

MICHAEL MEZZACAPO and DARREN LERNER
This research was commissioned by the Cesspool Conversion Working Group to reevaluate and analyze prior classification of cesspool hazards across the state of Hawai‘i, incorporating previously unavailable data and methods.

Updating Hawai‘i’s Cesspool Prioritization and Timeline Strategy

SPONSOR:
Hawai‘i State Department of Health, Wastewater Branch/ State of Hawaii Cesspool Conversion Working Group

PROJECT PERIOD:
06/2020 – Ongoing

PROJECT PIs:
Michael Mezzacapo and Darren Lerner

ABSTRACT:
This project will provide the Cesspool Conversion Working Group (CCWG) and Data and Prioritization Subgroup with updated information and data to assist CCWG efforts in creating a long-term cesspool upgrade plan for the state of Hawai‘i. The project’s main objectives are to (1) identify factors (e.g., sea-level rise, human health threats, groundwater flow) that will assist in the creation of prioritization criteria and upgrade timelines, (2) examine and categorize previously uncategorized (Priority level 4) cesspools, (3) reevaluate the 2017 Cesspool Legislative report recommendations based on new findings from data and reports authored for the Data and Prioritization Subgroup of the CCWG and provide recommendations, (4) identify exemption criteria for cesspools in areas not in need of critical upgrades, and (5) develop a formula to prioritize specific cesspools based on identified attributes and data.