Community Water System · PWS PR0005166
Juncos - Ceiba Sur
Operator location Juncos, Puerto Rico - 28% of 2,179 violations are health-based (upper-third health share (> 23%)); surface water source; 36,277 served per SDWIS.
- 36,277
- People served (this PWS)
- 2,179
- EPA violations (this PWS)
- 612
- Health-based (this PWS)
- 2 PFAS
- UCMR5 (this PWS)
Juncos - Ceiba Sur standing, high SDWIS violation third
28% of 2,179 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 28% is upper-third health share (> 23%). UCMR5: lower-third PFAS panel (≤ 2 compounds). Population rank #1,534 of 29,740 among systems serving 500+.
The verdict
Juncos - Ceiba Sur sits in the upper third of the sitemap cohort by violation count (2,179), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (36,277; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 28% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 2 PFAS compounds (lower-third PFAS panel (≤ 2 compounds)).
- #1,534 of 29,740
- Population · /systems
- #16 of 235
- Population · PR
- 2,179
- Total EPA violations on record
- 28%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 13,587
- County
- Juncos Municipio
- School/Daycare
- No
- MCL Violations
- 112
- Monitoring Violations
- 1,530
- Treatment Tech Violations
- 500
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 299 | 2001 |
| Interim Enhanced Surface Water Treatment Rule | TT | 126 | 2024 |
| Coliform (TCR) | MCL | 80 | 2015 |
| CARBON, TOTAL | TT | 73 | 2014 |
| Tetrachloroethylene | MR | 59 | 2007 |
| cis-1,2-Dichloroethylene | MR | 58 | 2006 |
| DICHLOROMETHANE | MR | 58 | 2006 |
| Vinyl chloride | MR | 58 | 2006 |
| trans-1,2-Dichloroethylene | MR | 58 | 2006 |
| Carbon tetrachloride | MR | 58 | 2006 |
| Trichloroethylene | MR | 58 | 2006 |
| Benzene | MR | 58 | 2006 |
| Toluene | MR | 58 | 2006 |
| Ethylbenzene | MR | 58 | 2006 |
| Styrene | MR | 58 | 2006 |
| Xylenes, Total | MR | 58 | 2006 |
| o-Dichlorobenzene | MR | 58 | 2006 |
| p-Dichlorobenzene | MR | 58 | 2006 |
| 1,2-Dichloroethane | MR | 58 | 2006 |
| 1,1,1-Trichloroethane | MR | 58 | 2006 |
| CHLOROBENZENE | MR | 58 | 2006 |
| 1,1-Dichloroethylene | MR | 58 | 2006 |
| 1,2-Dichloropropane | MR | 58 | 2006 |
| 1,1,2-Trichloroethane | MR | 58 | 2006 |
| 1,2,4-Trichlorobenzene | MR | 58 | 2006 |
| Lead and Copper Rule | MR | 55 | 2016 |
| Turbidity | MR | 26 | 2017 |
| E. COLI | MR | 26 | 2017 |
| Cryptosporidium | MR | 26 | 2017 |
| Total Haloacetic Acids (HAA5) | MCL | 25 | 2018 |
Violation Count vs. the National Corpus
Juncos - Ceiba Sur has 2,179 recorded EPA violations, 100% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 0% carry more. 28% of this system's own violations are health-based (612 of 2,179), and it ranks #1,534 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)
2,179 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. 3 of 290 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFDoA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 8/28/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 8/28/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHpA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 8/28/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| NEtFOSAA | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 8/28/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFTrDA | 8/28/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 8/28/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 8/28/2023 | 9.80 ppt | 5.00 ppt | Detected |
| PFHpS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 8/28/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 8/28/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 8/28/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NFDHA | 8/28/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFEESA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOS | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 6:2 FTS | 8/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 8/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 8/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 8/28/2023 | 4.80 ppt | 4.00 ppt | Detected |
Health-based violations on Juncos - Ceiba Sur
612 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PR0005166.
Sources: EPA SDWIS
Nationwide peers
2,179 violations · 36,277 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 Juncos - Ceiba Sur
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.