TapSafetyReport
B68/100

MDWASA - MAIN SYSTEM — Water Quality Report 2026

Serving 2,377,460 people · Florida

Water Source
Groundwater
County
—
System ID
FL4130871
Violations
10

Contaminant Test Results

4 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
PFOS
0.030 µg/L0.004 µg/LOver Limit
PFOA
0.011 µg/L0.004 µg/LOver Limit
chlorate
270.00 µg/L—Above Goal
Lead (90th percentile)
0.003 mg/L0.015 mg/LAbove Goal

EPA Violation History

6

Violations (last 5yr)

4

Unresolved

0

Health-Related

TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 1, 2023 – December 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – October 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About MDWASA - MAIN SYSTEM

Is MDWASA - MAIN SYSTEM water safe to drink?

MDWASA - MAIN SYSTEM water receives a grade of B (68/100), which is considered good. Out of 73 contaminants tested, 2 exceed EPA legal limits. 4 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has MDWASA - MAIN SYSTEM detected?

73 contaminants were tested in MDWASA - MAIN SYSTEM's water. Notable contaminants include PFOS, PFOA, Lead (90th percentile), chlorate. 2 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).

Does MDWASA - MAIN SYSTEM have any EPA violations?

Yes, MDWASA - MAIN SYSTEM has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MON.

How many people does MDWASA - MAIN SYSTEM serve?

MDWASA - MAIN SYSTEM serves approximately 2,377,460 people, Florida. The system provides water to 1 community: Miami.

What type of water does MDWASA - MAIN SYSTEM provide?

MDWASA - MAIN SYSTEM sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is FL4130871.

How does MDWASA - MAIN SYSTEM compare to other utilities in Florida?

MDWASA - MAIN SYSTEM scores 68/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Florida state page for a full comparison of water systems.

Cities Served

Miami