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Municipal Department

Miami-Dade Water and Sewer Department (WASD) – Main System

Serving Miami-Dade County, including Miami and neighboring unincorporated service areas

Population served

Approximately 2.3–2.4 million residents; active EPA/SDWIS CWS FL4130871 (MDWASA - MAIN SYSTEM), with the current public system profile reporting roughly 2,377,460 people served and Miami-Dade describing the department as serving about 2.4 million residents directly and through wholesale relationships.

State system code

FIPS 12

Billing frequency

Typically quarterly for retail accounts, although WASD also maintains monthly accounts for some customers or account circumstances. The public account page expressly describes bills as typically sent quarterly and uses the quarterly average for high-bill investigations and leak-credit calculations.

Provider briefing

How this utility’s billing works

Miami-Dade Water and Sewer Department (WASD) – Main System operates as a municipal department serving Miami-Dade County, including Miami and neighboring unincorporated 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 Inclining conservation block structure. For the common 5/8-inch residential meter under the FY 2025–26 schedule effective October 1, 2025, the $5.06 monthly meter charge includes the first 3 CCF/2,244 gallons; usage from 4–17 CCF is $4.0995 per CCF and 18 CCF or more is $9.9162 per CCF. A South Florida Water Management District restriction surcharge can apply to 18 CCF and above and varies with the restriction phase.. Bills are generated typically quarterly for retail accounts, although wasd also maintains monthly accounts for some customers or account circumstances. the public account page expressly describes bills as typically sent quarterly and uses the quarterly average for high-bill investigations and leak-credit calculations., and a typical residential cost reference is Using the current 5/8-inch residential schedule and 5,000–7,000 gallons per month (about 6.7–9.4 CCF), the estimated combined water and wastewater charge is approximately $59–$92 per month before applicable taxes, SFWMD restriction surcharges, and non-utility charges. The calculation includes the $5.06 water meter charge plus usage above 3 CCF and the $8.61 wastewater base plus wastewater usage above 3 CCF; actual quarterly bills vary with the read interval and consumption.. 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

Wastewater is billed separately but on the same metered consumption basis. The common 5/8-inch account has an $8.61 monthly wastewater base that includes 3 CCF/2,244 gallons, then $8.1673 per CCF for 4 CCF and above under FY 2025–26 rates. WASD generally bills quarterly and uses the water meter consumption to calculate wastewater. For a monthly account, the concealed-leak form says a leak adjustment is limited to the sewer portion rather than the water loss; customers must submit the completed form, final repair evidence, photographs, and invoice, and a $30 administrative processing fee applies to the lifetime concealed-leak request.

Meter and infrastructure notes

WASD currently operates a mixed system. The County’s 2025 AMI procurement record says most existing meters are from multiple manufacturers and are read manually on a quarterly or monthly schedule depending on the account, while an AMI deployment using Sensus (Xylem) serves roughly 4,800 accounts in Miami Springs and Fisher Island. The same record describes a turnkey advanced-metering-infrastructure conversion intended to expand smart-meter coverage. Customers can read the physical register near the curb and compare it with the bill; the online account can display consumption, but WASD does not publish a universal hourly-read promise or a single systemwide AMI completion date.

Emergency water support

Report a leak or water emergency

24-hour emergency call center: 305-274-9272. The regular Customer Care Center is 305-665-7477, Monday–Friday, 8:00 a.m.–7:00 p.m. Customers should use the emergency number for main breaks, major bursts, water-quality or infrastructure emergencies, and urgent field conditions rather than waiting for regular billing support.

Reading this profile

A practical reference for Miami-Dade County, including Miami and neighboring unincorporated service areas

Miami-Dade Water and Sewer Department (WASD) – Main System is listed here as a municipal department. 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.