Is MDWASA - MAIN SYSTEM required to publish a Consumer Confidence Report?

Yes. MDWASA - MAIN SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MDWASA - MAIN SYSTEM’s next Consumer Confidence Report due?

MDWASA - MAIN SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

MIAMI, FL · Miami-Dade County

MDWASA - MAIN SYSTEM Water System

Consumer Confidence Report status

MDWASA - MAIN SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MDWASA - MAIN SYSTEM.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Florida’s official records. Always confirm current status with Florida before making decisions based on this information.

System facts

System ID (PWSID): FL4130871
System type: Community Water System
Population served: 2,377,460
Service connections: 560,000
Ownership: local government
Water source: groundwater (wells)

MDWASA - MAIN SYSTEM is the largest community water system in Florida, serving 2,377,460 people from groundwater.

As of August 1, 2026, its federal record holds 7 entries between 2020 and 2024, all of which EPA lists as closed.

All 7 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Total Coliform Rules, and the Lead and Copper Rule.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
April 1, 2024 – June 30, 2024
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2024 – June 30, 2024
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2023 – December 31, 2023
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2023 – October 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2023 – December 31, 2023
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2020 – November 6, 2020
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2024 – June 30, 2024	Monitoring and Reporting (DBP)	TTHM	—	Archived
April 1, 2024 – June 30, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
December 1, 2023 – December 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
October 1, 2023 – October 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Archived
January 1, 2020 – November 6, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

April 10, 2024State Compliance achieved2 linked violations
August 13, 2004State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 15, 1983State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 15, 1980State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Common questions

Is MDWASA - MAIN SYSTEM required to publish a Consumer Confidence Report?: Yes. MDWASA - MAIN SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MDWASA - MAIN SYSTEM’s next Consumer Confidence Report due?: MDWASA - MAIN SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MDWASA - MAIN SYSTEM have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MDWASA - MAIN SYSTEM.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MDWASD

786-552-8112

MIAMI, FL 33146