Community Water System · PWS PR0004644
Agustinillo
Operator location Juana Diaz, Puerto Rico - upper-third violation load (> 74 violations) with 77 EPA violations; groundwater source; 1,343 served (PWS-level, not municipal population).
- 1,343
- People served (this PWS)
- 77
- EPA violations (this PWS)
- 4
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Agustinillo standing, high SDWIS violation third
77 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 5% is middle-third health share (≤ 23%). Population rank #16,907 of 29,740 among systems serving 500+.
The verdict
Agustinillo sits in the upper third of the sitemap cohort by violation count (77), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,343 (mid served population (≤ 3,309)). Health-based share is 5% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #16,907 of 29,740
- Population · /systems
- #147 of 235
- Population · PR
- 77
- Total EPA violations on record
- 5%
- 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
- 503
- County
- Juana Diaz Municipio
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 68
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 12 | 2015 |
| Consumer Confidence Rule | Other | 5 | 2022 |
| Coliform (TCR) | MCL | 4 | 2012 |
| TTHM | MR | 3 | 2014 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2014 |
| Nitrite | MR | 2 | 2005 |
| Fluoride | MR | 1 | 2005 |
| cis-1,2-Dichloroethylene | MR | 1 | 2006 |
| Xylenes, Total | MR | 1 | 2006 |
| DICHLOROMETHANE | MR | 1 | 2006 |
| o-Dichlorobenzene | MR | 1 | 2006 |
| p-Dichlorobenzene | MR | 1 | 2006 |
| Vinyl chloride | MR | 1 | 2006 |
| 1,2-Dichloroethane | MR | 1 | 2006 |
| CHLOROBENZENE | MR | 1 | 2006 |
| Toluene | MR | 1 | 2006 |
| Styrene | MR | 1 | 2006 |
| Nitrate | MR | 1 | 2006 |
| Barium | MR | 1 | 2007 |
| Cadmium | MR | 1 | 2007 |
| Mercury | MR | 1 | 2007 |
| Nickel | MR | 1 | 2007 |
| Beryllium, Total | MR | 1 | 2007 |
| Selenium | MR | 1 | 2007 |
| Methoxychlor | MR | 1 | 2019 |
| Heptachlor | MR | 1 | 2019 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2019 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2019 |
| Benzo(a)pyrene | MR | 1 | 2019 |
| BHC-GAMMA | MR | 1 | 2019 |
Violation Count vs. the National Corpus
Agustinillo has 77 recorded EPA violations, 67% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 32% carry more. 5% of this system's own violations are health-based (4 of 77), and it ranks #16,907 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)
77 Around the middle fewer violations than 32% 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
SDWIS compliance record for Agustinillo
77 violations on record for PR0004644; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
77 violations · 1,343 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 Agustinillo
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.