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SEMINOLE COUNTY SOUTHWEST

PWS ID: FL3590785 · APOPKA, Florida 32703

SEMINOLE COUNTY SOUTHWEST serves 9,622 people in APOPKA, Florida using Groundwater water sources. It has 66 recorded EPA violations, including 3 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SEMINOLE COUNTY SOUTHWEST

SEMINOLE COUNTY SOUTHWEST is a local-owned community water system that delivers drinking water to 9,622 residents in APOPKA, Florida (Seminole County) through 3,035 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 66 total violations for this system , of which 3 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 37 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 Coliform (TCR), recorded in 23 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. SEMINOLE COUNTY SOUTHWEST's 66 violations sit above the Florida average. Statewide, 218 of 402 UCMR5-tested systems have reported PFAS detections (54.2%). 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
9,622
Total Violations
66
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,035
County
Seminole
School/Daycare
No
MCL Violations
3
Monitoring Violations
37
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 23 2003
TTHM MR 5 2025
Coliform (TCR) MCL 3 2004
Antimony, Total MR 2 1994
Thallium, Total MR 2 1994
Consumer Confidence Rule Other 1 2003
Revised Total Coliform Rule MON 1 2019
Total Haloacetic Acids (HAA5) MR 1 2025
Lead and Copper Rule MR 1 2006
Gross Alpha, Excl. Radon and U MR 1 1984
E. COLI MR 1 2010

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFOS 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/11/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFBA 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 9/11/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/11/2023 <0.006 µg/L 0.006 µg/L Not Detected
NFDHA 9/11/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
lithium 9/11/2023 <9 µg/L 9 µg/L Not Detected
8:2 FTS 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 3/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 3/7/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 3/7/2023 <9 µg/L 9 µg/L Not Detected
PFDoA 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 3/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 3/7/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 3/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 3/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 3/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 3/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 3/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 3/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 3/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 3/7/2023 <0.003 µg/L 0.003 µg/L 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 SEMINOLE COUNTY SOUTHWEST.

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 FL3590785 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Florida Drinking Water Authority

Florida Department of Environmental Protection — Drinking Water Program is the primacy agency that licenses and inspects SEMINOLE COUNTY SOUTHWEST under EPA-delegated authority.

Open FL regulator portal

Source: 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 TTHM MR 5 SDWIS / FL3590785 / 2950
2025 Total Haloacetic Acids (HAA5) MR 1 SDWIS / FL3590785 / 2456
2019 Revised Total Coliform Rule MON 1 SDWIS / FL3590785 / 8000
2010 E. COLI MR 1 SDWIS / FL3590785 / 3014
2006 Lead and Copper Rule MR 1 SDWIS / FL3590785 / 5000
2004 Coliform (TCR) MCL 3 SDWIS / FL3590785 / 3100
2003 Coliform (TCR) MR 23 SDWIS / FL3590785 / 3100
2003 Consumer Confidence Rule Other 1 SDWIS / FL3590785 / 7000
1994 Antimony, Total MR 2 SDWIS / FL3590785 / 1074
1994 Thallium, Total MR 2 SDWIS / FL3590785 / 1085
1984 Gross Alpha, Excl. Radon and U MR 1 SDWIS / FL3590785 / 4000

How SEMINOLE COUNTY SOUTHWEST Compares

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

Metric SEMINOLE COUNTY SOUTHWEST Florida avg Federal benchmark
Total violations 66 36.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 3 4.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 54.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 9,622 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is SEMINOLE COUNTY SOUTHWEST water safe to drink? ▼
SEMINOLE COUNTY SOUTHWEST (PWS ID: FL3590785) has 66 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 9,622 people using Groundwater sources.
How many people does SEMINOLE COUNTY SOUTHWEST serve? ▼
SEMINOLE COUNTY SOUTHWEST serves 9,622 people in APOPKA, Florida. It is a Local-owned system using Groundwater water sources with 3,035 service connections.
What type of violations does SEMINOLE COUNTY SOUTHWEST have? ▼
SEMINOLE COUNTY SOUTHWEST has 66 total violations: 3 health-based violations (MCL exceedances or treatment failures), 37 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SEMINOLE COUNTY SOUTHWEST water? ▼
No. SEMINOLE COUNTY SOUTHWEST was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does SEMINOLE COUNTY SOUTHWEST use? ▼
SEMINOLE COUNTY SOUTHWEST uses Groundwater 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.

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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.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial