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Public water system record

Mdwasa - Main System

Serves Miami, Kendall, Doral and 48 more places, Miami-Dade County, FL · 2,377,460 people served

Federal records show no health-based violations and 7 monitoring/reporting issues for Mdwasa - Main System in the last ten years.

  • FL4130871
  • MIAMI
  • FL
  • 2,377,460 served

System profile

Source water Groundwater
ZIP 33146
EPA system ID FL4130871

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
7

Key facts

  • Mdwasa - Main System draws water from 77 wells.
  • Most recent enforcement action: boil water order by Florida, May 1996.
  • Record on file since 1991, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 289,930 unknown out of 469,589 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
 Dec 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
 Oct 1, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2020 Resolved

Full record since 1991

EPA's records for Mdwasa - Main System go back to 1991. Before October 19, 2016 they list no health-based violations and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 3
2020s 0 7

Enforcement actions

Florida regulators took 1 formal enforcement action against Mdwasa - Main System and issued 1 boil water order between 1992 and 1996. The most recent was a boil water order in May 1996.

Date By Action Violations covered
May 13, 1996 Florida Boil water order 1 violation
Oct 9, 1992 Florida Signed compliance agreement 2 violations: Total Coliform, Lead and Copper Rule

Where the water comes from

Mdwasa - Main System draws water from 77 wells. 14 other community water systems and 2 smaller public systems such as schools, businesses or campgrounds buy water from Mdwasa - Main System.

Community systems that buy water from it

Annual water quality report

Mdwasa - Main System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Florida.

Certified drinking water labs by state EPA guidance for private wells