Community Water System · PWS FL4131001
Opa Locka, City Of
Opalocka, Florida 33054 - drinking water served from groundwater sources to 16,479 people, tracked in EPA SDWIS and UCMR5.
- 16,479
- People served
- 67
- EPA violations
- 2
- Health-based
- 6 PFAS
- UCMR5 result
The verdict
EPA records 67 drinking-water violations at Opa Locka, City Of, 3% of them health-based - above the Florida per-system average, and UCMR5 testing detected 6 PFAS compounds.
- 67
- Total EPA violations on record
- 3%
- Health-based (MCL / treatment failure)
- 16,479
- People served by this system
- 6
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: Opa Locka, City Of
Opa Locka, City Of is a local-owned community water system that delivers drinking water to 16,479 residents in Opalocka, Florida (Miami-Dade County) through 4,800 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 67 total violations for this system , of which 2 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 41 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 Revised Total Coliform Rule, recorded in 13 violations (MON). Under EPA's UCMR5 PFAS monitoring program, 6 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 11 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.
Across Florida, EPA tracks 5,093 public water systems serving 22,381,282 people, with 184,355 cumulative violations and 24,266 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 36.2 violations. Statewide, 218 of 402 UCMR5-tested systems have reported PFAS detections (54.2%).
Opa Locka, City Of's 67 violations sit above the Florida average.
All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 4,800
- County
- Miami-Dade
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 41
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 13 | 2025 |
| Lead and Copper Rule | MR | 9 | 2017 |
| Consumer Confidence Rule | Other | 7 | 2007 |
| Coliform (TCR) | MR | 6 | 2013 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2023 |
| TTHM | MR | 5 | 2023 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 3 | 2009 |
| Coliform (TCR) | MCL | 2 | 2015 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 10 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFDoA | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 6/30/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 6/30/2023 | 11.00 ppt | 4.00 ppt | Detected |
| PFNA | 6/30/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/30/2023 | 3.10 ppt | 3.00 ppt | Detected |
| PFHxA | 6/30/2023 | 4.50 ppt | 3.00 ppt | Detected |
| PFBS | 6/30/2023 | 3.80 ppt | 3.00 ppt | Detected |
| NFDHA | 6/30/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 6/30/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 6/30/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFMBA | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 6/30/2023 | 6.10 ppt | 3.00 ppt | Detected |
| 9Cl-PF3ONS | 6/30/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHpS | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/30/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 6/30/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 6/30/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 6/30/2023 | 8.50 ppt | 5.00 ppt | Detected |
| 6:2 FTS | 6/30/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 6/30/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 6/30/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 4/13/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 4/13/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 4/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 4/13/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 10/25/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDoA | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 10/25/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFBS | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 10/25/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 10/25/2023 | 9.70 ppt | 4.00 ppt | Detected |
| PFOA | 10/25/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 10/25/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NFDHA | 10/25/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFTA | 10/25/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHxA | 10/25/2023 | 4.20 ppt | 3.00 ppt | Detected |
| PFPeS | 10/25/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 10/25/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 10/25/2023 | 5.80 ppt | 3.00 ppt | Detected |
| PFMPA | 10/25/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 10/25/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 10/25/2023 | <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 Opa Locka, City Of.
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 FL4131001 on SDWISSource: EPA SDWIS Federal Reports Search
Florida Drinking Water Authority
Florida Department of Environmental Protection, Drinking Water Program is the primacy agency that licenses and inspects Opa Locka, City Of under EPA-delegated authority.
Open FL regulator portalSource: Florida Department of Environmental Protection, Drinking Water Program
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 | Revised Total Coliform Rule | MON | 13 | SDWIS / FL4131001 / 8000 |
| 2023 | Total Haloacetic Acids (HAA5) | MR | 5 | SDWIS / FL4131001 / 2456 |
| 2023 | TTHM | MR | 5 | SDWIS / FL4131001 / 2950 |
| 2017 | Lead and Copper Rule | MR | 9 | SDWIS / FL4131001 / 5000 |
| 2015 | Coliform (TCR) | MCL | 2 | SDWIS / FL4131001 / 3100 |
| 2013 | Coliform (TCR) | MR | 6 | SDWIS / FL4131001 / 3100 |
| 2009 | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 3 | SDWIS / FL4131001 / 0600 |
| 2007 | Consumer Confidence Rule | Other | 7 | SDWIS / FL4131001 / 7000 |
How Opa Locka, City Of Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | Opa Locka, City Of | Florida avg | Federal benchmark |
|---|---|---|---|
| Total violations | 67 | 36.2 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 2 | 4.8 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | 6 compounds | 54.2% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 16,479 | 4,395 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,093 regulated public water systems in Florida.
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 Opa Locka, City Of water safe to drink? ▼
How many people does Opa Locka, City Of serve? ▼
What type of violations does Opa Locka, City Of have? ▼
Has PFAS been detected in Opa Locka, City Of water? ▼
What water source does Opa Locka, City Of use? ▼
Where does this data come from? ▼
Read our methodology - how this data is sourced, computed, and verified.
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.