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Tap water quality report

Mdwasa/Rex Utilities

EPA monitoring tested this supplier for 100 contaminants and detected 25. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

100
contaminants tested
25
detected
45,200
people served
0
health-based violations
Water source
Ground water
Ownership
Local government
Counties served
Miami-Dade

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
14
violations on file
2
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 2023-10-01 → 2023-12-31
MON Monitoring Archived 2023-10-01 → 2023-10-31
MR Monitoring Archived 2023-10-01 → 2023-12-31
Other Monitoring Unaddressed 2023-07-01
MON Monitoring Archived 2022-08-01 → 2022-08-31
MR Monitoring Archived 2022-07-01 → 2022-09-30
Other Monitoring Unaddressed 2022-07-01
MR Monitoring Archived 2022-07-01 → 2022-09-30
MON Monitoring Archived 2022-05-01 → 2022-05-31
MR Monitoring Archived 2022-04-01 → 2022-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0170 µg/L 10/10 2025
PFOS 0.0374 µg/L 10/10 2025
Pfba 0.0098 µg/L 9/10 2025
Pfhpa 0.0066 µg/L 6/10 2025
Pfhxa 0.0111 µg/L 6/10 2025
PFOA 0.0106 µg/L 6/10 2025
Pfpea 0.0146 µg/L 6/10 2025
PFHXS 0.0038 µg/L 5/10 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
7000 µg/L 70%
of the EPA limit 10000 µg/L
worst single sample: 7500 µg/L
264/264 SYR4 2012–2019
TTHM
75.8 µg/L 95%
of the EPA limit 80 µg/L
worst single sample: 87.4 µg/L
133/134 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
23.33 µg/L 39%
of the EPA limit 60 µg/L
worst single sample: 39.5 µg/L
130/134 SYR4 2012–2019
Fluoride
707.5 µg/L 18%
of the EPA limit 4000 µg/L
worst single sample: 820 µg/L
26/26 SYR4 2014–2018
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
14/14 LCR 2023
Arsenic
1.08 µg/L 11%
of the EPA limit 10 µg/L
worst single sample: 1.2 µg/L
13/13 SYR4 2013–2017
Copper
24 µg/L 1.8%
of the EPA limit 1300 µg/L
worst single sample: 27 µg/L
11/11 SYR4 2013–2017
Barium
21.96 µg/L 1.1%
of the EPA limit 2000 µg/L
worst single sample: 22 µg/L
9/10 SYR4 2014–2017
Combined Uranium
15.943 µg/L 53%
of the EPA limit 30 µg/L
worst single sample: 16.241 µg/L
9/10 SYR4 2014–2017
Lead
0.6200 µg/L 4.1%
of the EPA limit 15 µg/L
worst single sample: 0.7000 µg/L
9/12 SYR4 2013–2017
Selenium
1.45 µg/L 2.9%
of the EPA limit 50 µg/L
worst single sample: 1.5 µg/L
6/11 SYR4 2013–2017
Antimony, Total
0.4850 µg/L 8.1%
of the EPA limit 6 µg/L
worst single sample: 0.5000 µg/L
4/11 SYR4 2013–2017
Chromium
0.9000 µg/L 0.9%
of the EPA limit 100 µg/L
4/13 SYR4 2013–2017
Gross Alpha, Excl. Radon And U
7.8875 pCi/L 53%
of the EPA limit 15 pCi/L
worst single sample: 8.3 pCi/L
4/9 SYR4 2014–2017
Cadmium
0.1000 µg/L 2%
of the EPA limit 5 µg/L
1/13 SYR4 2013–2017
Nitrite
52 µg/L 5.2%
of the EPA limit 1000 µg/L
1/134 SYR4 2012–2019
P-Dichlorobenzene
0.3600 µg/L 0.5%
of the EPA limit 75 µg/L
1/37 SYR4 2012–2019
75 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MWASD
Phone
305-888-2522

Frequently asked questions about Mdwasa/Rex Utilities

Is Mdwasa/Rex Utilities tap water safe to drink?

EPA monitoring detected 25 contaminants in Mdwasa/Rex Utilities's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Mdwasa/Rex Utilities's water?

EPA monitoring detected Nitrate, TTHM, Total Haloacetic Acids (HAA5), Fluoride, Lead, and others. The full list with the level and data source for each is above.

How many people does Mdwasa/Rex Utilities serve?

Mdwasa/Rex Utilities reports serving 45,200 people in Florida, per its EPA record.

Has Mdwasa/Rex Utilities had any water quality violations?

The EPA has 14 violations on file for Mdwasa/Rex Utilities, of which 0 are health-based (a contaminant limit or required treatment was breached) and 2 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.