Community Water System · PWS PR0002662
Hatillo-Camuy
Operator location Hatillo, Puerto Rico - 46% of 468 violations are health-based (upper-third health share (> 23%)); surface water source; 28,735 served per SDWIS.
- 28,735
- People served (this PWS)
- 468
- EPA violations (this PWS)
- 213
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Hatillo-Camuy standing, high SDWIS violation third
46% of 468 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: UCMR5 tested, none detected. Population rank #1,946 of 29,740 among systems serving 500+.
The verdict
Hatillo-Camuy sits in the upper third of the sitemap cohort by violation count (468), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (28,735; 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 tested this system and reported no PFAS above the minimum reporting level.
- #1,946 of 29,740
- Population · /systems
- #24 of 235
- Population · PR
- 468
- 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.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 10,762
- County
- Hatillo Municipio
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 236
- Treatment Tech Violations
- 198
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 165 | 2001 |
| Interim Enhanced Surface Water Treatment Rule | TT | 33 | 2024 |
| Cryptosporidium | MR | 18 | 2019 |
| E. COLI | MR | 16 | 2019 |
| Turbidity | MR | 16 | 2019 |
| Coliform (TCR) | MCL | 11 | 2015 |
| TTHM | MR | 11 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 9 | 2019 |
| Surface Water Treatment Rule | MR | 6 | 2000 |
| Nitrate | MR | 6 | 2018 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 5 | 2006 |
| ETHYLENE DIBROMIDE | MR | 5 | 2006 |
| Endrin | MR | 4 | 2014 |
| BHC-GAMMA | MR | 4 | 2014 |
| Methoxychlor | MR | 4 | 2014 |
| Toxaphene | MR | 4 | 2014 |
| Hexachlorocyclopentadiene | MR | 4 | 2014 |
| Heptachlor | MR | 4 | 2014 |
| Heptachlor epoxide | MR | 4 | 2014 |
| HEXACHLOROBENZENE | MR | 4 | 2014 |
| Chlordane | MR | 4 | 2014 |
| Lead and Copper Rule | MR | 4 | 2016 |
| Consumer Confidence Rule | Other | 4 | 2020 |
| Total Haloacetic Acids (HAA5) | MCL | 4 | 2015 |
| Diquat | MR | 3 | 2019 |
| Endothall | MR | 3 | 2019 |
| Picloram | MR | 3 | 2006 |
| 2,4,5-TP | MR | 3 | 2006 |
| Revised Total Coliform Rule | MON | 3 | 2019 |
| Dinoseb | MR | 3 | 2006 |
Violation Count vs. the National Corpus
Hatillo-Camuy has 468 recorded EPA violations, 95% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 5% carry more. 46% of this system's own violations are health-based (213 of 468), and it ranks #1,946 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)
468 Higher than most more violations than 95% 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. 0 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMPA | 7/17/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 7/17/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpS | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 7/17/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 7/17/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 7/17/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 7/17/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 7/17/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFOS | 7/17/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeS | 7/17/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 7/17/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 7/17/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 7/17/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/17/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/17/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 7/17/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 7/17/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 7/17/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpA | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 7/17/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 4/29/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 4/29/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFEESA | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 4/29/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 4/29/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 4/29/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 4/29/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 4/29/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 4/29/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| 9Cl-PF3ONS | 4/29/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| NEtFOSAA | 4/29/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 4/29/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 4/29/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 4/29/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 4/29/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 4/29/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
Health-based violations on Hatillo-Camuy
213 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PR0002662.
Sources: EPA SDWIS
Nationwide peers
468 violations · 28,735 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 Hatillo-Camuy
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.