City of Opa Locka
EPA ID: FL4131001 · 16,479 people served · 6 ZIP codes
City of Opa Locka shows 24 open EPA violations in current federal records for approximately 16,479 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for City of Opa Locka Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The City of Opa Locka serves a community with a median household income of $59,065 and an estimated 224,306 residents across its service area. Approximately 84% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 67% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
City of Opa Locka's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Miami-Dade County, Florida rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How City of Opa Locka compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 4 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Consumer Confidence Report Rule at 20 mg/L exceeds the EPA maximum of mg/L.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 56 detections recorded. 12 exceed federal EPA limits (4 ppt for PFOA/PFOS). 12 exceed state limits.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
City of Opa Locka, (EPA ID: FL4131001) is a community water system in Florida that serves approximately 16,479 people from groundwater sources.
This system provides water to 6 ZIP codes across 3 communities.
Average Home Safety Score: D (54/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| June 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| June 1, 2024 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| November 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| October 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| September 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| June 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| May 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| March 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| January 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 20 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 33054 | 0.0009 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 5 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Opa Locka (FL4131001) on EPA.gov.
Frequently Asked Questions
Is City of Opa Locka water safe to drink?
City of Opa Locka has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does City of Opa Locka serve?
City of Opa Locka serves approximately 16,479 people across 6 ZIP codes in Florida.
Where does City of Opa Locka get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Above Current MCL
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: FDEP PWS Lead Service Line Inventories (LSLI) · Submitted 2024
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Notable events and violations
This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.
Notable events from the utility's CCR
These bullet entries are the utility's own narration of operational, regulatory, or infrastructure events during the reporting period.
- Pass-through CCR: City of Opa-Locka purchases all water from Miami-Dade Water and Sewer Department (WASD). No independent water quality data table in this CCR.
- WASD source: Biscayne Aquifer groundwater wells. WASD conducts 210,000+ water sample tests annually.
- City reports drinking water meets all federal and state requirements.
- WASD 2024 Water Quality Report available at: https://www.miamidade.gov/water/library/reports/water-quality-2024.pdf
- No independent lead/copper tap sampling data reported in this CCR — deferred to WASD.
ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Opa Locka (EPA ID: FL4131001) — request the latest Consumer Confidence Report or ask about specific contaminants.