Public water system record
Guayama Urbano
Serves an area of Guayama Municipio and Arroyo Municipio, PR that includes Guayama, Arroyo, Corazón and 3 more places · 36,606 people served
Federal records show 11 health-based violations and 75 monitoring/reporting issues for Guayama Urbano in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.
System profile
Source water
Surface water
ZIP
00784
EPA system ID
PR0004745
- Health-based violations, last 10 years
- 11
- Resolved
- 11
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 75
Key facts
- Guayama Urbano draws water from 1 well and 2 surface water intakes.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.098 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, July 2019.
- Record on file since 1980, with 84 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 5,898 unknown out of 16,473 service lines.
Check whether Guayama 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 |
|---|---|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2022 | Resolved | Yes |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Oct 1, 2019 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2019 | Resolved | Yes |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Jul 1, 2019 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Apr 1, 2019 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Apr 1, 2019 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2019 | Resolved | Yes |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2017 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Oct 1, 2016 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Styrene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Chlordane
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
2,4-D
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
LASSO
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Atrazine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Picloram
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Simazine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Endothall
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Diquat
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Dalapon
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Endrin
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 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
|
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, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2013 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2012 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2011 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 1, 2009 | Resolved |
Full record since 1980
EPA's records for Guayama Urbano go back to 1980. Before October 19, 2016 they list 84 health-based violations (53 resolved, 31 archived by EPA without a recorded fix) and 135 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 10 |
| 1990s | 18 | 6 |
| 2000s | 33 | 54 |
| 2010 to October 18, 2016 | 33 | 65 |
| October 19, 2016 to 2019 | 7 | 45 |
| 2020s | 2 | 22 |
Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began October 2016, Resolved.
Show all 84 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
Jul 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jan 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Oct 1, 2015 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2015 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jul 1, 2015 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.075 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.078 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Oct 1, 2014 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
|
Jul 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
|
Apr 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jan 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.075 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Oct 1, 2013 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Oct 1, 2013 | Archived |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
Jul 1, 2013 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2013 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2010 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Apr 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.077 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Jan 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.079 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.071 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Jul 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jan 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Oct 1, 2008 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Oct 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2007 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2006 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Dec 1, 2006 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2006 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2005 | Resolved |
34 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Puerto Rico regulators took 9 formal enforcement actions against Guayama Urbano between 1994 and 2019, filed as 14 records in EPA's data. The most recent was a civil case filed in court in July 2019.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 23, 2019 | Puerto Rico | Civil case filed in court | 4 violations (4 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Nov 5, 2015 | Puerto Rico | Civil case filed in court | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Oct 23, 2014 | Puerto Rico | Civil case filed in court | 4 violations (4 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Oct 23, 2013 | Puerto Rico | Civil case filed in court | 23 violations (23 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Jul 29, 2010 | Puerto Rico | Civil case filed in court | 3 violations (3 health-based): Haloacetic Acids (HAA5) |
| Jun 24, 2008 | Puerto Rico | Civil case filed in court | 3 violations (3 health-based): Interim Enhanced Surface Water Treatment Rule, Total Trihalomethanes (TTHMs) |
| Mar 20, 2003 | Puerto Rico | Compliance order (no penalty) | 3 violations: Radium-226, Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jun 30, 1998 | Puerto Rico | Compliance order with a penalty | 9 violations (9 health-based): Surface Water Treatment Rule |
| Mar 4, 1994 | Puerto Rico | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
What the violations mean
Haloacetic Acids (HAA5)
5 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Interim Enhanced Surface Water Treatment Rule
3 incidentsThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Total Trihalomethanes (TTHMs)
3 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
Guayama Urbano draws water from 1 well and 2 surface water intakes.
Annual water quality report
Guayama 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.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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