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Tap water quality report

Experimental

EPA monitoring tested this supplier for 31 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

31
contaminants tested
8
detected
6,445
people served
4
health-based violations
Water source
Ground water
Ownership
Local government
Counties served
Juana Diaz Municipio

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.

4
health-based violations
67
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-06-01 → 2003-06-30
MCL Health-based Resolved 2003-06-01 → 2003-06-30
MCL Health-based Archived 2000-01-01 → 2000-03-31
MCL Health-based Archived 2000-01-01 → 2000-03-31
MR Monitoring Archived 2024-04-01 → 2024-06-30
MR Monitoring Archived 2024-04-01 → 2024-06-30
MR Monitoring Archived 2024-04-01 → 2024-06-30
MR Monitoring Archived 2024-04-01 → 2024-06-30
MR Monitoring Archived 2024-04-01 → 2024-06-30
MR Monitoring Archived 2024-04-01 → 2024-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0420 µg/L 7/10 2024
PFOS 0.0054 µg/L 6/10 2024
Pfba 0.0540 µg/L 3/10 2024
Pfhpa 0.0130 µg/L 2/10 2024
Pfhxa 0.2600 µg/L 2/10 2024
PFOA 0.0220 µg/L 2/10 2024
Pfpea 0.1100 µg/L 2/10 2024

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
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
12/12 LCR 2016
23 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
EXPERIMENTAL
Phone
787-620-2277

Frequently asked questions about Experimental

Is Experimental tap water safe to drink?

EPA monitoring detected 8 contaminants in Experimental'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 Experimental's water?

EPA monitoring detected Lead, PFBS, PFOS, Pfba, Pfhpa, and others. The full list with the level and data source for each is above.

How many people does Experimental serve?

Experimental reports serving 6,445 people in PR, per its EPA record.

Has Experimental had any water quality violations?

The EPA has 67 violations on file for Experimental, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 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.