Is Caguas, PR tap water safe?
The short answer
1 of the 2 utilities serving Caguas has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s records: Caguas Sur.
Caguas Norte, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 7.4 ppt, above EPA’s new limit, which takes effect in 2029.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down.
- Open report
Caguas Norte
Puerto Rico · serves 47,352 people · lists Caguas among the places it serves
1 result above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 7.4 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Caguas Sur
Puerto Rico · serves 34,261 people · lists Caguas among the places it serves
1 result above the health goal. The worst: Lead at 6.0 ppb, above the health goal.
7 health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Caguas Norte’s water, which serves the most people here. Another utility’s report names what handles its own results.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS, Lead
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, Lead
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, Lead
Water testing near Caguas
The 3 labs Puerto Rico certifies closest to Caguas, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Environmental Quality Laboratories (E.Q. Lab.)
Santurce, PR · about 14 miles
Certified for bacteria, radioactivity
(787) 288-6420Website: Environmental Quality Laboratories (E.Q. Lab.)
Instituto de Laboratorios
Río Piedras, PR · about 14 miles
Certified for bacteria
Acualab de Puerto Rico
Humacao, PR · about 16 miles
Certified for bacteria
Which ZIP codes are in Caguas: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Departamento de Salud, laboratorios y parámetros certificados (agua potable); distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Caguas
Towns nearby with a page of their own.
What to do next
- Read Caguas Norte’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water