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LAS BOCAS

PWS ID: PR0004945 · SANTURCE, Puerto Rico 00916

LAS BOCAS serves 10,998 people in SANTURCE, Puerto Rico using Surface Water water sources. It has 309 recorded EPA violations, including 70 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (2 compounds found).

Water Quality Snapshot: LAS BOCAS

LAS BOCAS is a local-owned community water system that delivers drinking water to 10,998 residents in SANTURCE, Puerto Rico (Barranquitas Municipio County) through 4,119 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 309 total violations for this system , of which 70 (23%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 221 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Long Term 2 Enhanced Surface Water Treatment Rule, recorded in 65 violations (TT, health-based). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 0.0072 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Puerto Rico, EPA tracks 458 public water systems serving 3,328,141 people, with 164,144 cumulative violations and 34,657 health-based violations on record. About 100% of systems in the state carry at least one violation, and state-wide the average per system is 358.4 violations. LAS BOCAS's 309 violations sit below the Puerto Rico average. Statewide, 40 of 99 UCMR5-tested systems have reported PFAS detections (40.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
10,998
Total Violations
309
Health-Based Violations
70
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,119
County
Barranquitas Municipio
School/Daycare
No
MCL Violations
0
Monitoring Violations
221
Treatment Tech Violations
70

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Long Term 2 Enhanced Surface Water Treatment Rule TT 65 2019
Lead and Copper Rule MR 23 2016
Public Notice Other 10 2019
Cryptosporidium MR 9 2011
OXAMYL MR 8 2025
Carbofuran MR 8 2025
BHC-GAMMA MR 7 2025
Methoxychlor MR 7 2025
Hexachlorocyclopentadiene MR 7 2025
Heptachlor MR 7 2025
HEXACHLOROBENZENE MR 7 2025
Endrin MR 7 2025
Toxaphene MR 7 2025
Heptachlor epoxide MR 7 2025
Chlordane MR 7 2025
LASSO MR 6 2025
Atrazine MR 6 2025
Simazine MR 6 2025
Interim Enhanced Surface Water Treatment Rule TT 5 2023
Coliform (TCR) MR 4 2014
Consumer Confidence Rule Other 4 2020
Dalapon MR 4 2025
Diquat MR 4 2025
Di(2-ethylhexyl) adipate MR 4 2025
Picloram MR 4 2025
2,4-D MR 4 2025
2,4,5-TP MR 4 2025
Benzo(a)pyrene MR 4 2025
Pentachlorophenol MR 4 2025
Total Polychlorinated Biphenyls (PCB) MR 4 2025

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 600 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/16/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/16/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/16/2025 <0.007 µg/L 0.007 µg/L Not Detected
lithium 9/16/2025 <9 µg/L 9 µg/L Not Detected
PFOA 9/16/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/16/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/16/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/16/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/16/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/16/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/16/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/16/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/16/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/16/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/16/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/16/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/16/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/16/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/16/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFUnA 8/21/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDA 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/21/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/21/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/21/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/21/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 8/21/2024 <9 µg/L 9 µg/L Not Detected
PFBS 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 8/21/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 8/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/21/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFOS 8/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 8/21/2024 <0.003 µg/L 0.003 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for LAS BOCAS.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID PR0004945 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Puerto Rico Drinking Water Authority

Puerto Rico's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find PR regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 OXAMYL MR 8 SDWIS / PR0004945 / 2036
2025 Carbofuran MR 8 SDWIS / PR0004945 / 2046
2025 BHC-GAMMA MR 7 SDWIS / PR0004945 / 2010
2025 Methoxychlor MR 7 SDWIS / PR0004945 / 2015
2025 Hexachlorocyclopentadiene MR 7 SDWIS / PR0004945 / 2042
2025 Heptachlor MR 7 SDWIS / PR0004945 / 2065
2025 HEXACHLOROBENZENE MR 7 SDWIS / PR0004945 / 2274
2025 Endrin MR 7 SDWIS / PR0004945 / 2005
2025 Toxaphene MR 7 SDWIS / PR0004945 / 2020
2025 Heptachlor epoxide MR 7 SDWIS / PR0004945 / 2067
2025 Chlordane MR 7 SDWIS / PR0004945 / 2959
2025 LASSO MR 6 SDWIS / PR0004945 / 2051
2025 Atrazine MR 6 SDWIS / PR0004945 / 2050
2025 Simazine MR 6 SDWIS / PR0004945 / 2037
2025 Dalapon MR 4 SDWIS / PR0004945 / 2031

How LAS BOCAS Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric LAS BOCAS Puerto Rico avg Federal benchmark
Total violations 309 358.4 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 70 75.7 Indicates a contaminant exceeded a federal MCL
PFAS detection 2 compounds 40.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 10,998 7,267 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 458 regulated public water systems in Puerto Rico.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is LAS BOCAS water safe to drink? ▼
LAS BOCAS (PWS ID: PR0004945) has 309 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 2 PFAS compounds found. This system serves 10,998 people using Surface Water sources.
How many people does LAS BOCAS serve? ▼
LAS BOCAS serves 10,998 people in SANTURCE, Puerto Rico. It is a Local-owned system using Surface Water water sources with 4,119 service connections.
What type of violations does LAS BOCAS have? ▼
LAS BOCAS has 309 total violations: 70 health-based violations (MCL exceedances or treatment failures), 221 monitoring/reporting violations, and 70 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LAS BOCAS water? ▼
Yes. UCMR5 testing detected 2 PFAS compounds in LAS BOCAS's water supply: PFOS, PFPeA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does LAS BOCAS use? ▼
LAS BOCAS uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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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.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial