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Tap water quality report

ZIP 00791 — Las Piedras, PR

EPA monitoring across the 2 water suppliers serving ZIP 00791 in Las Piedras, PR detected 3 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
118,719
people served
3
contaminants found

What was found in ZIP 00791

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Lithium
10.17 µg/L
No EPA limit set
1/2 UCMR-5
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
2/2 LCR
PFOS
0.0054 µg/L
No EPA limit set
1/2 UCMR-5
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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 00791

SupplierStatePopulation served
RIO BLANCO,VIEQUES,CULEDRA PR 79,822
LAS PIEDRAS HUMACAO PR 38,897

Frequently asked questions about ZIP 00791 tap water

Is the tap water in ZIP 00791 safe to drink?

EPA testing detected 3 contaminants across the water suppliers serving ZIP 00791. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 00791?

2 public water suppliers report EPA drinking-water monitoring for ZIP 00791. Each is listed above with its population served.

What contaminants are in ZIP 00791's water?

EPA monitoring detected Lithium, Lead, PFOS across this ZIP's suppliers. The full list with levels and sources is above.