Toho Water Authority Eastern
EPA ID: FL3490751 · 110,102 people served · 21 ZIP codes
With 14 unresolved EPA violations, Toho Water Authority Eastern is currently out of full compliance — approximately 110,102 people in its service area.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 1 (2021) to 2 (2025). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Toho Water Authority Eastern Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Toho Water Authority Eastern serves a community with a median household income of $68,757 and an estimated 648,594 residents across its service area.
Environmental Justice Note: 57% 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?
Toho Water Authority Eastern'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 Orange County, Florida rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Toho Water Authority Eastern compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 2 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
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.
Total Coliform at 11 presence exceeds the EPA maximum of presence.
Consumer Confidence Report Rule at 2 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 14 detections recorded. 7 exceed federal EPA limits (4 ppt for PFOA/PFOS). 7 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
TOHO WATER AUTHORITY EASTERN (EPA ID: FL3490751) is a community water system in Florida that serves approximately 110,102 people from groundwater sources.
This system provides water to 21 ZIP codes across 7 communities.
Average Home Safety Score: B (70/100)
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 | Total Coliform | Monitoring | Unresolved |
| August 1, 2025 | Total Coliform | Monitoring | Unresolved |
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2025 | Total Coliform | Monitoring | Unresolved |
| March 1, 2025 | Total Coliform | Monitoring | Unresolved |
| February 1, 2025 | Total Coliform | Monitoring | Unresolved |
| December 1, 2023 | Total Coliform | Monitoring | Unresolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| October 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| October 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Coliform | Microbiological | 11 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| Consumer Confidence Report Rule | Reporting Failure | 2 | 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 |
|---|---|---|---|
| 34741 | 0.0006 mg/L | No | N/A |
| 34742 | 0.0006 mg/L | No | N/A |
| 34743 | 0.0006 mg/L | No | N/A |
| 34744 | 0.0006 mg/L | No | N/A |
| 34745 | 0.0006 mg/L | No | N/A |
| 34746 | 0.0006 mg/L | No | N/A |
| 34747 | 0.0006 mg/L | No | N/A |
| 34758 | 0.0006 mg/L | No | N/A |
| 34759 | 0.0006 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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: 16 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 5 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 32821 — Orlando
- 32830 — Orlando
- 33844 — Haines City
- 33848 — Intercession City
- 33896 — Davenport
- 33897 — Davenport
- 34741 — Kissimmee
- 34742 — Kissimmee
- 34743 — Kissimmee
- 34744 — Kissimmee
- 34745 — Kissimmee
- 34746 — Kissimmee
- 34747 — Kissimmee
- 34758 — Kissimmee
- 34759 — Kissimmee
- 34769 — Saint Cloud
- 34770 — Saint Cloud
- 34771 — Saint Cloud
- 34772 — Saint Cloud
- 34773 — Saint Cloud
- 34787 — Winter Garden
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Toho Water Authority Eastern (FL3490751) on EPA.gov.
Frequently Asked Questions
Is Toho Water Authority Eastern water safe to drink?
Toho Water Authority Eastern has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Toho Water Authority Eastern serve?
Toho Water Authority Eastern serves approximately 110,102 people across 21 ZIP codes in Florida.
Where does Toho Water Authority Eastern get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
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:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
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.
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
Toho Water Authority Eastern (EPA ID: FL3490751) — request the latest Consumer Confidence Report or ask about specific contaminants.