Oahu sewer fees are going up next month to pay for infrastructure upgrades and other costs.
The city says the month base fee and usage charge will both increase 4 percent.
The monthly base fee will rise to $65.76 while the usage charge will climb to $4.08.
Honolulu Department of Environmental Services Director Lori Kahikina says the increases are necessary to pay for capital improvements, debt service and infrastructure upgrades.
Honolulu is making $4.7 billion in upgrades to its sewage and wastewater treatment systems as part of a settlement reached with the Environmental Protect Agency, the state Department of Health and environmental groups.
The city has agreed to make the improvements over a 25-year time span.