Seminole County Northwest
Published drinking-water records and contacts for Seminole County Northwest. System FL3594107. Review sources and dates; not a real-time water assessment.
- System ID
- FL3594107
- State or territory
- FL
- Published population served
- 31986
- System type (source code)
- CWS
Published records and dates
- PFAS / lithium (EPA UCMR 5): 60 — 2024-06-18 – 2024-12-04
- Lead and copper monitoring summaries: 12 — 1993-07-01 – 2023-12-01
- Florida DEP annual chemical export — selected reported values: 16 — 2024-04-11 – 2024-10-08
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
| Substance | Published result | Reporting limit | Sample date | Sampling location |
|---|---|---|---|---|
| 11Cl-PF3OUdS | < 0.005 µg/L | 0.005 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| 4:2 FTS | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| 6:2 FTS | < 0.005 µg/L | 0.005 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| 8:2 FTS | < 0.005 µg/L | 0.005 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| 9Cl-PF3ONS | < 0.002 µg/L | 0.002 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| ADONA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| HFPO-DA | < 0.005 µg/L | 0.005 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| NEtFOSAA | < 0.005 µg/L | 0.005 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| NFDHA | < 0.02 µg/L | 0.02 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| NMeFOSAA | < 0.006 µg/L | 0.006 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFBA | < 0.005 µg/L | 0.005 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFBS | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFDA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFDoA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFEESA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFHpA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFHpS | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFHxA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFHxS | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFMBA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFMPA | < 0.004 µg/L | 0.004 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFNA | < 0.004 µg/L | 0.004 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFOA | < 0.004 µg/L | 0.004 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFOS | < 0.004 µg/L | 0.004 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFPeA | < 0.003 µg/L | 0.003 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFPeS | < 0.004 µg/L | 0.004 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFTA | < 0.008 µg/L | 0.008 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFTrDA | < 0.007 µg/L | 0.007 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| PFUnA | < 0.002 µg/L | 0.002 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
| lithium | < 9 µg/L | 9 µg/L | 2024-12-04 | Markham Regional WTP / 4107001 |
Download all EPA UCMR 5 records (CSV)
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0 mg/L | 2023-01-01 – 2023-12-01 | 2026Q3 |
| Lead (PB90) | 0.0015 mg/L | 2020-01-01 – 2020-12-01 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2017-01-01 – 2017-12-01 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2014-01-01 – 2014-12-01 | 2026Q3 |
| Lead (PB90) | 0.0027 mg/L | 2011-01-01 – 2011-12-01 | 2026Q3 |
| Lead (PB90) | 0.0082 mg/L | 2008-01-01 – 2008-12-01 | 2026Q3 |
| Lead (PB90) | 0.0054 mg/L | 2002-01-01 – 2002-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 1999-01-01 – 1999-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| TOTAL HALOACETIC ACIDS (HAA5) | 10.55 UG/L | 2024-10-08 | 4965 SR 46 - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL HALOACETIC ACIDS (HAA5) | 7.07 UG/L | 2024-10-08 | 8507 CYPRESS HOLLOW COURT - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL HALOACETIC ACIDS (HAA5) | 7.14 UG/L | 2024-10-08 | 1924 BRIDGEWATER - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL THMS | 34.3 UG/L | 2024-10-08 | 1799 ASTOR FARMS PLACE - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL THMS | 46.14 UG/L | 2024-10-08 | 1924 BRIDGEWATER - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL THMS | 61.74 UG/L | 2024-10-08 | 4965 SR 46 - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL HALOACETIC ACIDS (HAA5) | 6.27 UG/L | 2024-10-08 | 1799 ASTOR FARMS PLACE - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL THMS | 39.99 UG/L | 2024-10-08 | 8507 CYPRESS HOLLOW COURT - 2456 SUBCONTRACTED TO E84589; 2950 SUBCONTRACTED TO E82535 / Florida DEP annual chemical export — selected reported values |
| TOTAL HALOACETIC ACIDS (HAA5) | 18.2 UG/L | 2024-04-11 | NW 56 1799 ASTOR FARMS PL. TTHM: LRAA, 29.6375 / Florida DEP annual chemical export — selected reported values |
| TOTAL HALOACETIC ACIDS (HAA5) | 20.78 UG/L | 2024-04-11 | NW 79 4965 S.R. 46 (NEW SITE 4/1/15) TTHM LRAA: 50.37 / Florida DEP annual chemical export — selected reported values |
| TOTAL THMS | 52.58 UG/L | 2024-04-11 | NW 79 4965 S.R. 46 (NEW SITE 4/1/15) TTHM LRAA: 50.37 / Florida DEP annual chemical export — selected reported values |
| TOTAL HALOACETIC ACIDS (HAA5) | 17.9 UG/L | 2024-04-11 | NW 39 8507 CYPRESS HOLLOW CT. TTHM: LRAA, 32.9550 / Florida DEP annual chemical export — selected reported values |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
9 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-07-01 – 2023-09-30 | Resolved | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-04-01 – 2023-06-30 | Resolved | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-01-01 – 2023-03-31 | Resolved | Yes | 2026Q3 |
| Consumer Confidence Rule / Consumer Confidence Report Inadequate Reporting | 2018-07-01 – — | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 2006-10-01 – 2006-10-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 2004-05-01 – 2004-05-31 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 2004-03-01 – 2004-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 2000-04-01 – 2000-04-30 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1991-08-01 – 1991-08-31 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
- Florida DEP annual chemical export — selected reported values — last successful check: 2026-10-15
Administrative contact (EPA filing)
Dallas Smith: 407-665-2759
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.