B64/100

MDWASA/REX UTILITIES — Water Quality Report 2026

Serving 45,200 people · Florida

Water Source

Groundwater

County

—

System ID

FL4131202

Violations

Contaminant Test Results

4 contaminants above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
PFOS	0.037 µg/L	0.004 µg/L	0 µg/L	Over Limit
PFOA	0.011 µg/L	0.004 µg/L	0 µg/L	Over Limit
chlorate	490.00 µg/L	—	210.00 µg/L	Above Goal
Lead (90th percentile)	0.001 mg/L	0.015 mg/L	0 mg/L	Above Goal

EPA Violation History

Violations (last 5yr)

Unresolved

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: 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 3Unresolved

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 RuleVerify on EPA.gov

TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2023Verify on EPA.gov

TIER 3Unresolved

Monitoring Violation

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

When: August 1, 2022 – August 31, 2022Rule: Total Coliform RuleVerify 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: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPRVerify on EPA.gov

TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2022Verify 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: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPRVerify on EPA.gov

TIER 3Unresolved

Monitoring Violation

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

When: May 1, 2022 – May 31, 2022Rule: Total Coliform RuleVerify 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, 2022 – June 30, 2022Rule: 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, 2022 – June 30, 2022Rule: 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: January 1, 2022 – March 31, 2022Rule: 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: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPRVerify on EPA.gov

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/REX UTILITIES

Is MDWASA/REX UTILITIES water safe to drink?

MDWASA/REX UTILITIES water receives a grade of B (64/100), which is considered good. Out of 66 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/REX UTILITIES detected?

66 contaminants were tested in MDWASA/REX UTILITIES'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/REX UTILITIES have any EPA violations?

Yes, MDWASA/REX UTILITIES has 14 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MON, Other.

How many people does MDWASA/REX UTILITIES serve?

MDWASA/REX UTILITIES serves approximately 45,200 people, Florida. The system provides water to 1 community: Miami.

What type of water does MDWASA/REX UTILITIES provide?

MDWASA/REX UTILITIES sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is FL4131202.

How does MDWASA/REX UTILITIES compare to other utilities in Florida?

MDWASA/REX UTILITIES scores 64/100 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