PlainWater
States → Puerto Rico

COAMO URBANO

PWS ID: PR0003914 · COAMO, Puerto Rico 00769

Population Served
4,592
Total Violations
227
Health-Based Violations
24
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,720
County
Santa Isabel Municipio
School/Daycare
No
MCL Violations
21
Monitoring Violations
186
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Cryptosporidium MR 31 2019
Turbidity MR 29 2019
E. COLI MR 29 2019
Coliform (TCR) MCL 17 2014
Surface Water Treatment Rule MR 6 1998
LASSO MR 5 2014
TTHM MCL 4 2017
Consumer Confidence Rule Other 4 2020
Lead and Copper Rule MR 4 2016
Coliform (TCR) MR 3 2002
Atrazine MR 3 2011
Benzo(a)pyrene MR 3 2011
Public Notice Other 3 2019
Di(2-ethylhexyl) phthalate MR 3 2011
Simazine MR 3 2011
Di(2-ethylhexyl) adipate MR 3 2011
cis-1,2-Dichloroethylene MR 2 2005
Xylenes, Total MR 2 2005
DICHLOROMETHANE MR 2 2005
o-Dichlorobenzene MR 2 2005
p-Dichlorobenzene MR 2 2005
trans-1,2-Dichloroethylene MR 2 2005
Carbon tetrachloride MR 2 2005
Trichloroethylene MR 2 2005
1,1,2-Trichloroethane MR 2 2005
CHLOROBENZENE MR 2 2005
Benzene MR 2 2005
Toluene MR 2 2005
Interim Enhanced Surface Water Treatment Rule TT 2 2009
Total Haloacetic Acids (HAA5) MR 2 2014

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 9/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/23/2024 <9 µg/L 9 µg/L Not Detected
PFEESA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFPeA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/23/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFDA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 9/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFPeS 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/18/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 6/18/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/18/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 6/18/2024 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/18/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/18/2024 <0.004 µg/L 0.004 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.