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Community Water System · PWS PR0003262

Manati East

Manati, Puerto Rico 00674 - drinking water served from surface water sources to 13,305 people, tracked in EPA SDWIS and UCMR5.

13,305
People served
556
EPA violations
42
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 556 drinking-water violations at Manati East, 8% of them health-based - above the Puerto Rico per-system average, and UCMR5 testing detected 1 PFAS compound.

556
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
13,305
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Manati East

Manati East is a local-owned community water system that delivers drinking water to 13,305 residents in Manati, Puerto Rico (Manati Municipio County) through 4,983 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 556 total violations for this system , of which 42 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 509 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 TTHM, recorded in 32 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 6.7 ppt (parts per trillion). 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. Statewide, 40 of 99 UCMR5-tested systems have reported PFAS detections (40.4%).

Manati East's 556 violations sit above 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.

PFAS Detected

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

Population Served
13,305
Total Violations
556
Health-Based Violations
42
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,983
County
Manati Municipio
School/Daycare
No
MCL Violations
42
Monitoring Violations
509
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MR 32 2018
Total Haloacetic Acids (HAA5) MR 32 2018
Heptachlor MR 17 2019
Lead and Copper Rule MR 16 2015
LASSO MR 16 2019
Benzo(a)pyrene MR 16 2019
Di(2-ethylhexyl) adipate MR 16 2019
Simazine MR 16 2019
Nitrate MR 15 2008
Chlordane MR 15 2019
Endrin MR 15 2019
Heptachlor epoxide MR 15 2019
BHC-GAMMA MR 15 2019
Total Polychlorinated Biphenyls (PCB) MR 15 2019
Nitrate MCL 15 2003
Methoxychlor MR 15 2019
Toxaphene MR 15 2019
HEXACHLOROBENZENE MR 15 2019
Atrazine MR 14 2019
Di(2-ethylhexyl) phthalate MR 14 2015
Total Haloacetic Acids (HAA5) MCL 14 2016
Hexachlorocyclopentadiene MR 14 2019
Diquat MR 12 2019
Dalapon MR 12 2015
1,2-DIBROMO-3-CHLOROPROPANE MR 11 2015
2,4-D MR 11 2015
Carbofuran MR 11 2015
Pentachlorophenol MR 11 2015
OXAMYL MR 11 2015
Picloram MR 11 2015

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 348 samples detected PFAS.

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

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 PR0003262 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 / PR0003262 / 7000
2019 Heptachlor MR 17 SDWIS / PR0003262 / 2065
2019 LASSO MR 16 SDWIS / PR0003262 / 2051
2019 Benzo(a)pyrene MR 16 SDWIS / PR0003262 / 2306
2019 Di(2-ethylhexyl) adipate MR 16 SDWIS / PR0003262 / 2035
2019 Simazine MR 16 SDWIS / PR0003262 / 2037
2019 Chlordane MR 15 SDWIS / PR0003262 / 2959
2019 Endrin MR 15 SDWIS / PR0003262 / 2005
2019 Heptachlor epoxide MR 15 SDWIS / PR0003262 / 2067
2019 BHC-GAMMA MR 15 SDWIS / PR0003262 / 2010
2019 Total Polychlorinated Biphenyls (PCB) MR 15 SDWIS / PR0003262 / 2383
2019 Methoxychlor MR 15 SDWIS / PR0003262 / 2015
2019 Toxaphene MR 15 SDWIS / PR0003262 / 2020
2019 HEXACHLOROBENZENE MR 15 SDWIS / PR0003262 / 2274
2019 Atrazine MR 14 SDWIS / PR0003262 / 2050

How Manati East Compares

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

Metric Manati East Puerto Rico avg Federal benchmark
Total violations 556 358.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 42 75.7 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 40.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 13,305 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 Manati East water safe to drink? ▼
Manati East (PWS ID: PR0003262) has 556 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 13,305 people using Surface Water sources.
How many people does Manati East serve? ▼
Manati East serves 13,305 people in Manati, Puerto Rico. It is a Local-owned system using Surface Water water sources with 4,983 service connections.
What type of violations does Manati East have? ▼
Manati East has 556 total violations: 42 health-based violations (MCL exceedances or treatment failures), 509 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Manati East water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Manati East's water supply: PFOS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Manati East use? ▼
Manati East 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.