County of Maui Department of Water Supply

Provider briefing

How this utility’s billing works

County of Maui Department of Water Supply operates as a municipal department serving Wailuku and County of Maui Department of Water Supply service areas. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.

The published water-rate framework is described as Increasing block tiers plus a monthly meter-size service charge. For FY2027, effective July 1, 2026, single-family water is $2.13/1,000 gallons for 0-5,000 gallons, $4.98 for 5,001-15,000, $9.59 for 15,001-35,000, $16.50 for 35,001-50,000, and $19.80 over 50,000, with shortage-stage surcharges possible. A 5/8-inch meter has a $30.25 monthly service charge.. Bills are generated monthly. maui dws changed from bi-monthly to monthly billing so customers receive a monthly statement and can detect high-use leaks sooner; abp deductions occur 20 days after the bill is generated., and a typical residential cost reference is For a 5/8-inch single-family meter using 6,000 gallons in FY2027, the water component is approximately $35.23: $30.25 monthly service charge plus $10.65 for the first 5,000 gallons and $4.98 for the next 1,000. Where County residential sewer applies, the published sewer charge is $61 base plus $4.75 per 1,000 gallons through a 9,000-gallon ceiling, making a 6,000-gallon combined illustrative total about $130.23/month; sewer billing is administered by the Wastewater Reclamation Division and may vary by area.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.

Wastewater and sewer calculation

County residential sewer user fees consist of a monthly base charge and a water-usage component with a usage ceiling. The published single-family schedule is $61.00 per month covering the first 9,000 gallons, plus $4.75 per 1,000 gallons; multi-family uses the same $61 base with a 6,000-gallon included threshold. The sewer department recognizes that irrigation and other outdoor use may not enter the sewer, and separate irrigation meters can affect sewer charging; DWS collects the sewer charge on the combined bill.

Meter and infrastructure notes

DWS bills monthly based on water passing through the customer's meter and provides account/usage information through its billing system. The reviewed official pages do not identify an AMI/AMR vendor, remote-read interval, or universal physical-reader schedule.