Community Water System · PWS PR0002591
Metropolitano
Operator location San Juan, Puerto Rico - 46% of 1,673 violations are health-based (upper-third health share (> 23%)); surface water source; 1,077,332 served per SDWIS.
- 1,077,332
- People served (this PWS)
- 1,673
- EPA violations (this PWS)
- 774
- Health-based (this PWS)
- 8 PFAS
- UCMR5 (this PWS)
Metropolitano standing, high SDWIS violation third
46% of 1,673 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 46% is upper-third health share (> 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #26 of 29,740 among systems serving 500+.
The verdict
Metropolitano sits in the upper third of the sitemap cohort by violation count (1,673), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (1,077,332; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 46% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 8 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #26 of 29,740
- Population · /systems
- #1 of 235
- Population · PR
- 1,673
- Total EPA violations on record
- 46%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 403,495
- County
- San Juan Municipio
- School/Daycare
- No
- MCL Violations
- 138
- Monitoring Violations
- 838
- Treatment Tech Violations
- 636
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 275 | 2025 |
| Surface Water Treatment Rule | TT | 229 | 2018 |
| CARBON, TOTAL | TT | 130 | 2016 |
| Surface Water Treatment Rule | MR | 93 | 2025 |
| Cryptosporidium | MR | 71 | 2017 |
| E. COLI | MR | 71 | 2017 |
| Turbidity | MR | 71 | 2017 |
| TTHM | MCL | 62 | 2021 |
| Total Haloacetic Acids (HAA5) | MCL | 40 | 2020 |
| Lead and Copper Rule | MR | 35 | 2016 |
| Coliform (TCR) | MCL | 34 | 2015 |
| OXAMYL | MR | 19 | 2022 |
| Carbofuran | MR | 17 | 2022 |
| Nitrate | MR | 15 | 2024 |
| Dalapon | MR | 14 | 2012 |
| Picloram | MR | 14 | 2012 |
| Dinoseb | MR | 14 | 2012 |
| 2,4,5-TP | MR | 14 | 2012 |
| Pentachlorophenol | MR | 14 | 2012 |
| 2,4-D | MR | 14 | 2012 |
| Endothall | MR | 13 | 2012 |
| Di(2-ethylhexyl) adipate | MR | 13 | 2007 |
| Di(2-ethylhexyl) phthalate | MR | 13 | 2007 |
| Hexachlorocyclopentadiene | MR | 13 | 2007 |
| Atrazine | MR | 13 | 2007 |
| LASSO | MR | 13 | 2007 |
| Benzo(a)pyrene | MR | 13 | 2007 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 13 | 2011 |
| ETHYLENE DIBROMIDE | MR | 13 | 2011 |
| Simazine | MR | 13 | 2007 |
Violation Count vs. the National Corpus
Metropolitano has 1,673 recorded EPA violations, 100% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 0% carry more. 46% of this system's own violations are health-based (774 of 1,673), and it ranks #26 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
1,673 Higher than most more violations than 99%+ of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 25 of 580 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NFDHA | 7/9/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHxA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 7/9/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 7/9/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFDA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 7/9/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 7/9/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/9/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFBS | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 7/9/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 7/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 7/9/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHpS | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 7/9/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 7/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFEESA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 7/9/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMPA | 7/9/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 4:2 FTS | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 7/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 7/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 7/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 7/9/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 7/19/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/19/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 7/19/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 7/19/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 7/19/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 7/19/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/19/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 7/19/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 7/19/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMBA | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 7/19/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 7/19/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFUnA | 7/19/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeA | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 7/19/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFHpA | 7/19/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 7/19/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
Health-based violations on Metropolitano
774 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PR0002591.
Sources: EPA SDWIS
Nationwide peers
1,673 violations · 1,077,332 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Metropolitano
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Puerto Rico compares on the same EPA violation measures. Puerto Rico systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.