Public water system record
Duey
On record as serving Maricao and Yauco, Maricao Municipio and Yauco Municipio, PR · Serves 2,368 people
Federal records show 7 health-based violations and 16 monitoring/reporting issues for Duey in the last ten years. The most serious issue in this window was a resolved Long Term 2 Enhanced Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 7
- Resolved
- 7
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 16
Key facts
- Duey draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.086 mg/L, federal limit 0.06 mg/L (1.4 times the limit), 2018.
- Most recent formal enforcement: civil case filed in court by Puerto Rico, May 2018.
- Record on file since 1980, with 17 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 419 unknown out of 1,054 service lines.
Check whether Duey 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 |
|---|---|---|---|---|
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2025 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2024 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2024 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2024 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
|
220 | Apr 1, 2018 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.076 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
220 | Jan 1, 2018 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 2, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Apr 9, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 1, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2014 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2013 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2013 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2012 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2012 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2009 | Resolved |
Full record since 1980
EPA's records for Duey go back to 1980. Before October 19, 2016 they list 17 health-based violations (6 resolved, 11 archived by EPA without a recorded fix) and 94 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 18 |
| 1990s | 3 | 26 |
| 2000s | 9 | 6 |
| 2010 to October 18, 2016 | 5 | 44 |
| October 19, 2016 to 2019 | 2 | 3 |
| 2020s | 4 | 3 |
Most recent health-based violation before October 19, 2016: Long Term 2 Enhanced Surface Water Treatment Rule, began October 2016, Resolved.
Show all 17 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
Oct 2, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.077 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Jul 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Apr 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Jan 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Oct 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Oct 1, 2005 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 2005 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2005 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2001 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2000 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1999 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1994 | Archived |
Enforcement actions
Puerto Rico regulators took 4 formal enforcement actions against Duey between 2011 and 2018. The most recent was a civil case filed in court in May 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 8, 2018 | Puerto Rico | Civil case filed in court | 2 violations (2 health-based): Haloacetic Acids (HAA5) |
| Sep 24, 2015 | Puerto Rico | Civil case filed in court | 1 violation (1 health-based): Long Term 2 Enhanced Surface Water Treatment Rule |
| Oct 28, 2011 | Puerto Rico | Civil case filed in court | 2 violations (2 health-based): Haloacetic Acids (HAA5) |
| Sep 30, 2011 | Puerto Rico | Civil case filed in court | 2 violations (2 health-based): Haloacetic Acids (HAA5) |
What the violations mean
Long Term 2 Enhanced Surface Water Treatment Rule
5 incidentsThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Haloacetic Acids (HAA5)
2 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Duey draws water from 1 surface water intake.
Annual water quality report
Duey 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