Community Water System · PWS PR0003643
Ponce de Leon
Operator location Mayaguez, Puerto Rico - 0% of 114 violations are health-based (lower-third health share (≤ 1%)); surface water source; 9,740 served per SDWIS.
- 9,740
- People served (this PWS)
- 114
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Ponce de Leon standing, high SDWIS violation third
0% of 114 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). Population rank #4,797 of 29,740 among systems serving 500+.
The verdict
Ponce de Leon sits in the upper third of the sitemap cohort by violation count (114), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (9,740; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.
- #4,797 of 29,740
- Population · /systems
- #56 of 235
- Population · PR
- 114
- Total EPA violations on record
- 0%
- 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
- 3,648
- County
- Mayaguez Municipio
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 109
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 6 | 2016 |
| Cryptosporidium | MR | 5 | 2017 |
| Turbidity | MR | 5 | 2017 |
| Interim Enhanced Surface Water Treatment Rule | MR | 5 | 2018 |
| E. COLI | MR | 5 | 2017 |
| OXAMYL | MR | 3 | 2022 |
| Carbofuran | MR | 3 | 2022 |
| Consumer Confidence Rule | Other | 3 | 2020 |
| Surface Water Treatment Rule | MR | 2 | 2018 |
| Endrin | MR | 2 | 2022 |
| Methoxychlor | MR | 2 | 2022 |
| Toxaphene | MR | 2 | 2022 |
| Dalapon | MR | 2 | 2022 |
| Diquat | MR | 2 | 2022 |
| Endothall | MR | 2 | 2022 |
| Simazine | MR | 2 | 2022 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2022 |
| LASSO | MR | 2 | 2022 |
| Heptachlor | MR | 2 | 2022 |
| 2,4-D | MR | 2 | 2022 |
| HEXACHLOROBENZENE | MR | 2 | 2022 |
| Pentachlorophenol | MR | 2 | 2022 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 2022 |
| Chlordane | MR | 2 | 2022 |
| Arsenic | MR | 2 | 2022 |
| Cadmium | MR | 2 | 2022 |
| CYANIDE | MR | 2 | 2022 |
| Beryllium, Total | MR | 2 | 2022 |
| Thallium, Total | MR | 2 | 2022 |
| Selenium | MR | 2 | 2022 |
Violation Count vs. the National Corpus
Ponce de Leon has 114 recorded EPA violations, 76% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 24% carry more. 0% of this system's own violations are health-based (0 of 114), and it ranks #4,797 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)
114 Higher than most more violations than 76% 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
Health-based violations on Ponce de Leon
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PR0003643.
Sources: EPA SDWIS
Nationwide peers
114 violations · 9,740 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 Ponce de Leon
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.