Community Water System · PWS PR0002962
Coto Sur
Operator location Santurce, Puerto Rico - larger served population (> 3,309) at 15,158 people served; 38 SDWIS violations on record from surface water sources.
- 15,158
- People served (this PWS)
- 38
- EPA violations (this PWS)
- 3
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Coto Sur standing, mid SDWIS violation third
15,158 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 8% is middle-third health share (≤ 23%). Population rank #3,419 of 29,740 among systems serving 500+.
The verdict
Coto Sur lands in the middle third by violation volume (38), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (15,158; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 8% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #3,419 of 29,740
- Population · /systems
- #41 of 235
- Population · PR
- 38
- Total EPA violations on record
- 8%
- 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
- 5,677
- County
- Manati Municipio
- School/Daycare
- Yes
- MCL Violations
- 3
- Monitoring Violations
- 32
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 2 | 1998 |
| Hexachlorocyclopentadiene | MR | 1 | 1997 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 1997 |
| BHC-GAMMA | MR | 1 | 1997 |
| Nitrate | MCL | 1 | 1996 |
| Endothall | MR | 1 | 1997 |
| Heptachlor | MR | 1 | 1997 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1980 |
| 2,4-D | MR | 1 | 1997 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 1997 |
| Endrin | MR | 1 | 1997 |
| Atrazine | MR | 1 | 1997 |
| Heptachlor epoxide | MR | 1 | 1997 |
| Combined Radium (-226 and -228) | MR | 1 | 1980 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 1997 |
| Di(2-ethylhexyl) adipate | MR | 1 | 1997 |
| OXAMYL | MR | 1 | 1997 |
| Dalapon | MR | 1 | 1997 |
| HEXACHLOROBENZENE | MR | 1 | 1997 |
| Carbofuran | MR | 1 | 1997 |
| Dinoseb | MR | 1 | 1997 |
| Diquat | MR | 1 | 1997 |
| Pentachlorophenol | MR | 1 | 1997 |
| Chlordane | MR | 1 | 1997 |
| Lead and Copper Rule | MR | 1 | 1992 |
| Picloram | MR | 1 | 1997 |
| 2,4,5-TP | MR | 1 | 1997 |
| Glyphosate | MR | 1 | 1997 |
| Benzo(a)pyrene | MR | 1 | 1997 |
| Simazine | MR | 1 | 1997 |
Violation Count vs. the National Corpus
Coto Sur has 38 recorded EPA violations, 49% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 50% carry more. 8% of this system's own violations are health-based (3 of 38), and it ranks #3,419 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)
38 Lower than most fewer violations than 50% 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
Population served record for Coto Sur
EPA SDWIS lists 15,158 people served and 5,677 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
38 violations · 15,158 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
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 Coto 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.