Community Water System · PWS PR0003732
Las Delicias
Operator location Ciales, Puerto Rico - 45% of 170 violations are health-based (upper-third health share (> 23%)); surface water source; 1,023 served per SDWIS.
- 1,023
- People served (this PWS)
- 170
- EPA violations (this PWS)
- 77
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Las Delicias standing, high SDWIS violation third
45% of 170 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 45% is upper-third health share (> 23%). Population rank #19,219 of 29,740 among systems serving 500+.
The verdict
Las Delicias sits in the upper third of the sitemap cohort by violation count (170), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,023 (mid served population (≤ 3,309)). Health-based share is 45% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #19,219 of 29,740
- Population · /systems
- #158 of 235
- Population · PR
- 170
- Total EPA violations on record
- 45%
- 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
- 383
- County
- Ciales Municipio
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 82
- Treatment Tech Violations
- 77
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 47 | 2010 |
| Surface Water Treatment Rule | TT | 30 | 2005 |
| Consumer Confidence Rule | Other | 5 | 2022 |
| Picloram | MR | 4 | 2006 |
| Dinoseb | MR | 4 | 2006 |
| 2,4-D | MR | 4 | 2006 |
| 2,4,5-TP | MR | 4 | 2006 |
| Pentachlorophenol | MR | 4 | 2006 |
| Dalapon | MR | 4 | 2006 |
| Lead and Copper Rule | MR | 4 | 2016 |
| E. COLI | MR | 4 | 2018 |
| Endrin | MR | 3 | 2010 |
| Heptachlor | MR | 3 | 2010 |
| Heptachlor epoxide | MR | 3 | 2010 |
| Total Polychlorinated Biphenyls (PCB) | MR | 3 | 2010 |
| Chlordane | MR | 3 | 2010 |
| Cryptosporidium | MR | 3 | 2010 |
| BHC-GAMMA | MR | 3 | 2010 |
| Toxaphene | MR | 3 | 2010 |
| Surface Water Treatment Rule | MR | 3 | 2019 |
| HEXACHLOROBENZENE | MR | 3 | 2010 |
| Methoxychlor | MR | 3 | 2010 |
| Endothall | MR | 2 | 2006 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2006 |
| ETHYLENE DIBROMIDE | MR | 2 | 2006 |
| Glyphosate | MR | 1 | 2006 |
| Hexachlorocyclopentadiene | MR | 1 | 2006 |
| Carbofuran | MR | 1 | 2006 |
| LASSO | MR | 1 | 2006 |
| Atrazine | MR | 1 | 2006 |
Violation Count vs. the National Corpus
Las Delicias has 170 recorded EPA violations, 83% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 17% carry more. 45% of this system's own violations are health-based (77 of 170), and it ranks #19,219 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)
170 Higher than most more violations than 83% 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 Las Delicias
77 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PR0003732.
Sources: EPA SDWIS
Nationwide peers
170 violations · 1,023 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Las Delicias
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.