Water Resource Sustainability

29 Jan: Identifying hot spots of sewage pollution in Hilo, Hawaiʻi

PI: Tracy Wiegner
Hawaiʻi banned new cesspools in 2015, but groundwater contamination from the remaining 8700 cesspools in the Hilo area is a continuing concern. This work will use dye tracer studies to track cesspool outflows and use sewage indicators to establish contaminant sources to coastal groundwaters to inform future management decisions.

21 Jan: Differentiating treated and untreated wastewater contamination in a tropical coastal community using microbial community genomics

PI: Craig Nelson
There is growing concern that coastal ecosystems are threatened by sewage contamination of groundwaters. Using genomic methods, this project will examine the bacterial populations in the Keaukaha area of Hawaiʻi Island, to differentiate sources of contamination, and aid in management efforts to ameliorate sewage leakage.