The Cayman Islands Water Authority will raise rates for water, sewerage and septage disposal services by 3% from 1 July, marking its first base-price adjustment in seven years.
The increase will be reflected in bills covering July consumption and applies to customers in Grand Cayman and Cayman Brac.
According to the authority, the adjustment was made under Section 44(3) of the Water Authority Regulations following verification by the Office of the Auditor General and notification to the Utility Regulation and Competition Office.
For residential piped-water customers in Grand Cayman, the rate for the first 12 cubic metres consumed each month will increase from $4.34 to $4.47 per cubic metre.
Water usage above 12 cubic metres will rise from $5.57 to $5.74 per cubic metre.
Commercial customers in Grand Cayman will see the first-tier rate increase from $5.25 to $5.41 per cubic metre. The higher consumption rate for commercial customers will also increase from $5.57 to $5.74 per cubic metre.
In Cayman Brac, residential and commercial piped-water rates will rise from $5.99 to $6.17 per cubic metre. Trucked-water rates will increase from $7.55 to $7.78 per cubic metre.
The authority is also raising sewerage charges and septage disposal fees.
The monthly sewerage rate, which is assessed using Sewerage Fixture Units, will increase from $1.672 to $1.722 per SFU. The septage disposal rate charged to septage truckers will rise from $17.018 to $17.529 per 1,000 US gallons.
Water Authority said the increase is intended to support long-term investment in water and wastewater infrastructure.
Director Dr Gelia Frederick van Genderen said the adjustment is necessary to support current operations and future infrastructure investment.
“The adjustment is necessary to invest in our infrastructure to ensure proper and adequate operations now and into the future,” she said.
The authority noted that tap water will continue to cost less than three cents per gallon after the increase takes effect.
It also stated that its water continues to meet World Health Organisation drinking-water quality guidelines.
According to the authority, its accredited laboratory conducts more than 45,000 sample analyses each year.
Frederick van Genderen encouraged customers to use water efficiently and address leaks where possible, noting that consumption remains one of the main factors affecting household bills.
The authority said the revised rates will take effect on 1 July 2026 and represent its first base-price adjustment in seven years.
