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Community Water System · PWS PR0002832

Santana

Arecibo, Puerto Rico 00612 - drinking water served from surface water sources to 19,574 people, tracked in EPA SDWIS and UCMR5.

19,574
People served
282
EPA violations
62
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 282 drinking-water violations at Santana, 22% of them health-based - below the Puerto Rico per-system average.

282
Total EPA violations on record
22%
Health-based (MCL / treatment failure)
19,574
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Santana

Santana is a local-owned community water system that delivers drinking water to 19,574 residents in Arecibo, Puerto Rico (Arecibo Municipio County) through 7,331 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 282 total violations for this system , of which 62 (22%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 213 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 62 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 40 of 99 UCMR5-tested systems have reported PFAS detections (40.4%).

Santana's 282 violations sit below the Puerto Rico average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
19,574
Total Violations
282
Health-Based Violations
62
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
7,331
County
Arecibo Municipio
School/Daycare
No
MCL Violations
62
Monitoring Violations
213
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 62 2012
Total Haloacetic Acids (HAA5) MR 23 2017
TTHM MR 21 2017
Gross Alpha, Excl. Radon and U MR 6 2010
Lead and Copper Rule MR 5 2016
Benzo(a)pyrene MR 4 2005
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2005
Di(2-ethylhexyl) adipate MR 4 2005
Di(2-ethylhexyl) phthalate MR 4 2005
ETHYLENE DIBROMIDE MR 4 2005
Consumer Confidence Rule Other 4 2020
1,2,4-Trichlorobenzene MR 3 2005
cis-1,2-Dichloroethylene MR 3 2005
DICHLOROMETHANE MR 3 2005
p-Dichlorobenzene MR 3 2005
1,1-Dichloroethylene MR 3 2005
trans-1,2-Dichloroethylene MR 3 2005
1,2-Dichloroethane MR 3 2005
Carbon tetrachloride MR 3 2005
Tetrachloroethylene MR 3 2005
CHLOROBENZENE MR 3 2005
Benzene MR 3 2005
Styrene MR 3 2005
Endrin MR 3 2005
BHC-GAMMA MR 3 2005
Diquat MR 3 2005
OXAMYL MR 3 2005
Simazine MR 3 2005
Hexachlorocyclopentadiene MR 3 2005
Carbofuran MR 3 2005

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 232 samples detected PFAS.

Contaminant Date Result MRL Status
9Cl-PF3ONS 7/19/2023 <2.00 ppt 2.00 ppt Not Detected
PFMBA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/19/2023 <20.00 ppt 20.00 ppt Not Detected
PFBS 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 7/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFOA 7/19/2023 <4.00 ppt 4.00 ppt Not Detected
ADONA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/19/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/19/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 7/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeS 7/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/19/2023 <2.00 ppt 2.00 ppt Not Detected
PFDoA 7/19/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 7/19/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 7/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 7/19/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 7/19/2023 <8.00 ppt 8.00 ppt Not Detected
8:2 FTS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 7/18/2023 <2.00 ppt 2.00 ppt Not Detected
PFTrDA 7/18/2023 <7.00 ppt 7.00 ppt Not Detected
PFBA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 7/18/2023 <8.00 ppt 8.00 ppt Not Detected
PFMPA 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/18/2023 <20.00 ppt 20.00 ppt Not Detected
PFHpS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 7/18/2023 <6.00 ppt 6.00 ppt Not Detected
PFOS 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeS 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxA 7/18/2023 <3.00 ppt 3.00 ppt 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 Santana.

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 PR0002832 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
2020 Consumer Confidence Rule Other 4 SDWIS / PR0002832 / 7000
2017 Total Haloacetic Acids (HAA5) MR 23 SDWIS / PR0002832 / 2456
2017 TTHM MR 21 SDWIS / PR0002832 / 2950
2016 Lead and Copper Rule MR 5 SDWIS / PR0002832 / 5000
2012 Coliform (TCR) MCL 62 SDWIS / PR0002832 / 3100
2010 Gross Alpha, Excl. Radon and U MR 6 SDWIS / PR0002832 / 4000
2007 Coliform (TCR) MR 2 SDWIS / PR0002832 / 3100
2005 Benzo(a)pyrene MR 4 SDWIS / PR0002832 / 2306
2005 1,2-DIBROMO-3-CHLOROPROPANE MR 4 SDWIS / PR0002832 / 2931
2005 Di(2-ethylhexyl) adipate MR 4 SDWIS / PR0002832 / 2035
2005 Di(2-ethylhexyl) phthalate MR 4 SDWIS / PR0002832 / 2039
2005 ETHYLENE DIBROMIDE MR 4 SDWIS / PR0002832 / 2946
2005 1,2,4-Trichlorobenzene MR 3 SDWIS / PR0002832 / 2378
2005 cis-1,2-Dichloroethylene MR 3 SDWIS / PR0002832 / 2380
2005 DICHLOROMETHANE MR 3 SDWIS / PR0002832 / 2964

How Santana Compares

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

Metric Santana Puerto Rico avg Federal benchmark
Total violations 282 358.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 62 75.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 19,574 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Santana water safe to drink? ▼
Santana (PWS ID: PR0002832) has 282 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 19,574 people using Surface Water sources.
How many people does Santana serve? ▼
Santana serves 19,574 people in Arecibo, Puerto Rico. It is a Local-owned system using Surface Water water sources with 7,331 service connections.
What type of violations does Santana have? ▼
Santana has 282 total violations: 62 health-based violations (MCL exceedances or treatment failures), 213 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Santana water? ▼
No. Santana was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Santana use? ▼
Santana 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.