Public Water Authority
Mukilteo Water and Wastewater District
Serving Mukilteo and portions of Snohomish County
Population served
31,437 people (EPA SDWA queue estimate for WA5357550)
State system code
FIPS 53
Billing frequency
Bi-monthly; water, wastewater, and City stormwater charges are billed on two-month cycles.
Provider briefing
How this utility’s billing works
Mukilteo Water and Wastewater District operates as a public water authority serving Mukilteo and portions of Snohomish County. 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 Bi-monthly base charge by meter size plus a volumetric charge per 1,000 gallons. 2026 single-family water rates use a $49.80 base for a 5/8 x 3/4-inch meter and $4.19 per 1,000 gallons; wastewater is a flat $151.80 bi-monthly for a single-family residence.. Bills are generated bi-monthly; water, wastewater, and city stormwater charges are billed on two-month cycles., and a typical residential cost reference is Approximately $171.15 per month equivalent before tax for a 5/8-inch single-family account using 6,000 gallons per month: about $100.08 bi-monthly water, $151.80 bi-monthly wastewater, and approximately $90.42 bi-monthly City stormwater at the 2026 $45.21 monthly ERU rate. Actual billing depends on the customer’s service area and stormwater line.. 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
Single-family wastewater is a flat $151.80 per two-month bill in the 2026 schedule, with no residential volume charge. Commercial and industrial classes have meter-size base charges and volume/strength surcharges based on gallons and BOD class.
Meter and infrastructure notes
The District bills on two-month cycles and provides usage history through CivicPay. The reviewed pages did not identify AMR/AMI technology or the exact meter-read schedule.
Emergency water support
Report a leak or water emergency
The District publishes a 24-Hour Emergency contact through its website; ordinary customer service is 425-355-3355. The reviewed page did not expose the emergency number itself in text.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Mukilteo and portions of Snohomish County
Mukilteo Water and Wastewater District is listed here as a public water authority. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.