Public water system record
Coamo Urbano
Serves an area of Coamo Municipio and Santa Isabel Municipio, PR that includes Coamo, Santa Isabel, Los Llanos and 2 more places · 4,592 people served
Federal records show 1 health-based violation and 35 monitoring/reporting issues for Coamo Urbano in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 35
Key facts
- Coamo Urbano draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2017.
- Most recent formal enforcement: civil case filed in court by Puerto Rico, October 2014.
- Record on file since 1980, with 20 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,280 unknown out of 2,492 service lines.
Check whether Coamo Urbano serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Oct 10, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Turbidity
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Turbidity
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Turbidity
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Turbidity
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Turbidity
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Turbidity
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Turbidity
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Turbidity
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Turbidity
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Cryptosporidium
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Turbidity
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2012 | Resolved |
Full record since 1980
EPA's records for Coamo Urbano go back to 1980. Before October 19, 2016 they list 20 health-based violations (3 resolved, 17 archived by EPA without a recorded fix) and 65 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 18 |
| 1990s | 10 | 8 |
| 2000s | 8 | 24 |
| 2010 to October 18, 2016 | 2 | 15 |
| October 19, 2016 to 2019 | 1 | 29 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2014, Resolved.
Show all 20 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jul 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2014 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Nov 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2004 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Nov 1, 2004 | Archived |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2003 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 2001 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2001 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 1, 2001 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2000 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1998 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1996 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1996 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1996 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1991 | Archived |
Enforcement actions
Puerto Rico regulators took 2 formal enforcement actions against Coamo Urbano in 2014. The most recent was a civil case filed in court in October 2014.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 27, 2014 | Puerto Rico | Civil case filed in court | 2 violations (2 health-based): Total Trihalomethanes (TTHMs) |
| Apr 23, 2014 | Puerto Rico | Civil case filed in court | 1 violation (1 health-based): Total Coliform |
What the violations mean
Total Trihalomethanes (TTHMs)
1 incidentDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
Coamo Urbano draws water from 1 surface water intake.
Annual water quality report
Coamo Urbano must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Puerto Rico.
Certified drinking water labs by state EPA guidance for private wells