PWSID FL3594107
SEMINOLE COUNTY NORTHWEST
Community water system based in Winter Park, FL
Service area on file with EPA: Sanford · Seminole County. EPA's recorded service area can be incomplete for regional authorities. The cities and counties above are what the utility has filed with EPA; the utility may serve additional areas.
- Population served
- 32k
- Source
- Groundwater
- Status
- Active
At a glance
1 finding worth watching
-
This utility's lead service line inventory is not yet complete. Federal rules required every system to publish one by October 16, 2024.
From the utility's published inventory · See details below
-
Florida SB 700 (Florida Farm Bill) bans adding fluoride to public water statewide (effective July 1, 2025); systems no longer add it. CDC's listing predates the ban. Naturally occurring fluoride is unaffected.
Per CDC My Water's Fluoride · See details below
Past 5 years: 14 health-based violations on file, all marked Resolved or Archived. See compliance history below.
Risk classification follows EPA's published values for safe drinking water, with caution and concern bands reviewed by a clinician. Past resolved violations do not influence this card. See methodology.
Lead service line inventory
Service line inventory still in progress
SEMINOLE COUNTY NORTHWEST reports 0 confirmed lead service lines, 15,560 non-lead, 768 unknown (total 16,328) in the EPA SDWIS service line inventory (2026Q1). EPA's Lead and Copper Rule Revisions treat unknown and galvanized-requiring-replacement lines as lead for notification and replacement scheduling until verified.
- 0 confirmed lead service lines
- 0 galvanized requiring replacement (LCRI treats these as lead)
- 768 unknown (4.7% of total)
- 15,560 confirmed non-lead (95.3%)
- 16,328 total service lines in the system
What to do if your service line might be lead
- Ask your utility to check the service-line classification for your specific address. Many utilities provide a public address-lookup tool linked from the inventory page.
- Get on the replacement queue. Under the LCRI, utilities must replace all lead and galvanized-requiring- replacement lines within 10 years (clock generally starts November 2027). Some prioritize requests.
- Until the line is replaced: flush the tap 30 seconds after long stagnation, use cold water for drinking and cooking, and consider an NSF/ANSI 53 lead-rated tap filter.
- Talk to your clinician about a blood lead test for anyone in the home, especially a pregnant person or a child under 6. Lead in drinking water guide.
Inventory data sourced from SEMINOLE COUNTY NORTHWEST ( retrieved May 24, 2026 ; curator confidence: high ). Confirmed against the original source automatically each month; see methodology.
Lead and copper test results
The most recent measurement per contaminant from EPA's Lead and Copper Rule sampling.
Why only lead and copper, and not arsenic, nitrate, or others?
EPA's bulk SDWIS download is the only nationwide per-system sample data they publish, and it only includes the Lead and Copper Rule table. Values for other regulated contaminants (TTHMs, nitrate, arsenic, etc.) appear on this page only when they trigger a violation. For the full per-system contaminant suite, see the utility's annual Consumer Confidence Report (link further down the page).
| Contaminant | Most recent | Date | Risk |
|---|---|---|---|
| PB90 | 0 mg/L | December 1, 2023 | Below regulatory thresholds |
Data from EPA SDWIS (Lead and Copper Rule sample table) , last refreshed May 24, 2026.
PFAS and emerging contaminants
This system was tested 60 times under EPA's latest PFAS monitoring program; 0 of the 30 chemicals tested were detected.
What is this testing program?
EPA's fifth Unregulated Contaminant Monitoring Rule cycle (UCMR 5, 2023 to 2025) required every public water system serving over 3,300 people to test for 29 per- and polyfluoroalkyl substances (PFAS) plus lithium; 30 chemicals in total. Most recent detection per chemical shown below.
No detections
All UCMR 5 samples for this system were below the EPA-defined minimum reporting level (MRL) for every tested contaminant. Substances that were tested but not detected are listed below.
Tested but not detected (30 contaminants)
EPA tested for these substances and every sample was below the minimum reporting level. Absence of detection does not mean true zero; it means below the laboratory's quantitation threshold.
Data from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule) , last refreshed May 24, 2026.
Fluoride
Florida no longer adds fluoride to public water
Under Florida SB 700 (Florida Farm Bill), effective July 1, 2025, public water systems in Florida may not add fluoride to drinking water. Systems that previously adjusted fluoride have stopped. The CDC figures on this page are historical and describe fluoridation before the ban; naturally occurring fluoride in source water is unaffected.
Per CDC My Water's Fluoride (pre-ban)
Before Florida banned it, SEMINOLE COUNTY NORTHWEST added fluoride to its drinking water. It no longer does.
Under Florida SB 700 (Florida Farm Bill), effective July 1, 2025, no public water system in Florida may add fluoride. CDC's My Water's Fluoride listing below predates the ban and has not been updated for it. Naturally occurring fluoride in the source water is unaffected; the utility's annual water quality report has the latest measured concentration.
Source: CDC My Water's Fluoride, listed under SEMINOLE COUNTY NORTHWEST (Seminole County). Verify on CDC's site .
Area context (before the ban)
Seminole County, FL (2020 data)
- Community water systems
- 19 of 38 added fluoride (pre-ban)
- Population on fluoridated water
- 378,371 of 459,725 (82.3%)
Florida statewide (2020 data)
- Population on fluoridated water
- 14,886,493 of 18,952,021 (78.5%)
- Community water systems that added fluoride (pre-ban)
- 300 of 1,597
Data from CDC My Water's Fluoride (per-system status) , last refreshed May 19, 2026.
Data from CDC Water Fluoridation Reporting System (state and county aggregates) , last refreshed May 16, 2026.
Recorded contaminant measurements (from violations)
When this system exceeded a regulatory limit and EPA recorded the measured value, that value is shown here. These are not routine sample results: they are the values the violation was triggered on.
| Period | Contaminant | Measured | Federal MCL | Status |
|---|---|---|---|---|
| July 1, 2023 | Tthm | 87.4733UG/L | 0.08 UG/L | Health-based |
| July 1, 2023 | Tthm | 87.4733UG/L | 0.08 UG/L | Health-based |
| July 1, 2023 | Tthm | 87.4733UG/L | 0.08 UG/L | Health-based |
| July 1, 2023 | Tthm | 87.4733UG/L | 0.08 UG/L | Health-based |
| April 1, 2023 | Tthm | 86.9475UG/L | 0.08 UG/L | Health-based |
| April 1, 2023 | Tthm | 86.9475UG/L | 0.08 UG/L | Health-based |
| April 1, 2023 | Tthm | 86.9475UG/L | 0.08 UG/L | Health-based |
| April 1, 2023 | Tthm | 86.9475UG/L | 0.08 UG/L | Health-based |
| April 1, 2023 | Tthm | 86.9475UG/L | 0.08 UG/L | Health-based |
| January 1, 2023 | Tthm | 85.5425UG/L | 0.08 UG/L | Health-based |
| January 1, 2023 | Tthm | 85.5425UG/L | 0.08 UG/L | Health-based |
| January 1, 2023 | Tthm | 85.5425UG/L | 0.08 UG/L | Health-based |
| January 1, 2023 | Tthm | 85.5425UG/L | 0.08 UG/L | Health-based |
| January 1, 2023 | Tthm | 85.5425UG/L | 0.08 UG/L | Health-based |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Compliance history
EPA-recorded violations against this system over the last 5 years.
How to read this section
Health-based violations are when a measured limit was exceeded; the measured concentration is shown alongside the EPA federal limit where SDWIS published it. Monitoring and reporting items are paperwork issues (missed sample dates, late filings) that do not themselves indicate unsafe water.
14 resolved health-based violations in the last 5 years
All 14 health-based violations in the last 5 years are marked Resolved or Archived. Past violations do not represent current water quality.
| Period start | Contaminant | What happened | Measured level | Status |
|---|---|---|---|---|
| July 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 87.47 UG/L
MCL 0.080 UG/L | Resolved |
| July 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 87.47 UG/L
MCL 0.080 UG/L | Resolved |
| July 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 87.47 UG/L
MCL 0.080 UG/L | Resolved |
| July 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 87.47 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 86.95 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 86.95 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 86.95 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 86.95 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 86.95 UG/L
MCL 0.080 UG/L | Resolved |
| January 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 85.54 UG/L
MCL 0.080 UG/L | Resolved |
| January 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 85.54 UG/L
MCL 0.080 UG/L | Resolved |
| January 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 85.54 UG/L
MCL 0.080 UG/L | Resolved |
| January 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 85.54 UG/L
MCL 0.080 UG/L | Resolved |
| January 1, 2023 | Tthm | Maximum Contaminant Level Violation, Average | 85.54 UG/L
MCL 0.080 UG/L | Resolved |
1 older violation (5-10 years ago) · all paperwork (monitoring/reporting), none health-based , all resolved
| Period start | Relates to | Item | Measured level | Status |
|---|---|---|---|---|
| July 1, 2018 | Consumer Confidence Rule | Consumer Confidence Report Inadequate Reporting | — | Resolved |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Where to see every contaminant this utility tested for
EPA's bulk SDWIS dataset gives MyTapWater.us per-system measured values for lead and copper, plus violation records for everything else. To see every regulated contaminant this utility tested for in the past year (TTHMs, HAA5, nitrate, arsenic, fluoride, chromium, etc.) with measured values, read the utility's Consumer Confidence Report (CCR).
Every community water system is required by EPA to publish a CCR annually, by July 1, listing every contaminant they sampled, the measured value, the federal limit, and any health-based exceedances. Most utilities post the report online; some mail it with your bill.
How to find SEMINOLE COUNTY NORTHWEST's CCR:
- Search the web for "SEMINOLE COUNTY NORTHWEST consumer confidence report" . The PDF is usually on the utility's own website.
- Or call the utility directly. Their phone number is in the contact section below.
Other water systems in Seminole County, FL
Compare nearby utilities by population served.
- SANFORD, CITY OF (2 WPS)
80k served · SANFORD
- SEMINOLE COUNTY SOUTHEAST
70k served · WINTER PK/CASSELBERY
- CASSELBERRY, CITY OF (3 WPS)
55k served · CASSELBERRY
- ALTAMONTE SPRINGS WATER DEPT (2 WPS)
51k served · ALTAMONTE SPRINGS
- OVIEDO, CITY OF
48k served · OVIEDO
Contact this utility
Public administrative contact information for this water system, as filed with the EPA. Use this to ask about your service line, request your home's lead status, or report a water quality issue.
- Administrator
- DALLAS SMITH
- Phone
- 407-665-2759
- Mailing address
- 3304 DIKE ROADWINTER PARK, FL 32792
Where this page's data comes from
Bundle released 2026-Q2, regenerated May 24, 2026. Each section above also shows its own source date so you can tell at a glance how fresh that part of the page is.
- EPA SDWIS bulk download — last refreshed May 24, 2026 (system info, violations, lead and copper samples).
- EPA UCMR 5 (Unregulated Contaminant Monitoring Rule) — last refreshed May 24, 2026 (PFAS and lithium).
- Lead service line inventory — last refreshed May 24, 2026 (from the utility's reported inventory).
- CDC My Water's Fluoride — last refreshed May 19, 2026 (per-system Yes/No fluoridation status).
- CDC Water Fluoridation Reporting System — last refreshed May 16, 2026 (state and county fluoridation aggregates).
Every value on this page is cross-verified before publication; read our methodology for the verification steps and corrections process.