Seminole, FL
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Seminole in Florida · Population: 474,912
TRI sites such as Decimal LLC; Safety-Kleen Systems Sanford (san); Inliner Solutions LLC; SDWIS systems such as SEMINOLE COUNTY SOUTHEAST; CASSELBERRY, CITY OF (3 WPS); ALTAMONTE SPRINGS WATER DEPT (2 WPS); NPL sites such as General Dynamics Longwood; Sanford Dry Cleaners anchor Seminole, FL's EPA extract. Derived burden score 48/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Seminole include FLORIDA GOVERNMENTAL UTILITY AUTHORITY; SEMINOLE COUNTY NORTHWEST; LAKE UTILITY SERVICES INC NORTH (8 WPS), while Decimal LLC leads reported TRI pounds among local Form R filers. AQS median AQI 43 / peak 149 in 2024.
Burden score 48/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Seminole -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Seminole, FL: EPA TRI 2023 reporting year
Same facilities, both years
+3.4%
8 facilities that filed in 2022 and 2023
Whole inventory
+3.4%
39.4 thousand lb → 40.7 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Seminole, FL's total reported releases rose from 39.4 thousand lb in 2022 to 40.7 thousand lb in 2023, based on EPA TRI filings.
- Seminole, FL's air releases fell from 2.5 thousand lb in 2022 to 1.9 thousand lb in 2023, based on EPA TRI filings.
- Seminole, FL's chemicals reported rose from 12 in 2022 to 13 in 2023, based on EPA TRI filings.
- Seminole, FL's off-site transfers rose from 36.8 thousand lb in 2022 to 38.8 thousand lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 204 (71%) | 81 | 1 | 149 |
| 2023 | 299 (82%) | 64 | 1 | 106 |
| 2022 | 288 (79%) | 75 | 0 | 87 |
| 2021 | 273 (75%) | 92 | 0 | 97 |
| 2020 | 287 (79%) | 78 | 0 | 84 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Florida, see the EPA's AirNow.gov.
Water Systems (87)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| SEMINOLE COUNTY SOUTHEAST | 70,040 | 0 |
| CASSELBERRY, CITY OF (3 WPS) | 54,747 | 0 |
| ALTAMONTE SPRINGS WATER DEPT (2 WPS) | 51,000 | 0 |
| OVIEDO, CITY OF | 47,933 | 0 |
| SANLANDO (3 WTPS) | 36,953 | 0 |
| SEVEN SPRINGS | 32,834 | 0 |
| FLORIDA GOVERNMENTAL UTILITY AUTHORITY | 32,296 | 2 |
| SEMINOLE COUNTY NORTHWEST | 31,986 | 13 |
| LAKE UTILITY SERVICES INC NORTH (8 WPS) | 24,798 | 50 |
| LONGWOOD, CITY OF (2 WPS) | 23,237 | 0 |
| SEMINOLE COUNTY NORTHEAST | 19,925 | 0 |
| LAKE UTILITY SERVICES INC SOUTH | 13,198 | 5 |
| NASSAU-AMELIA UTILITIES | 9,750 | 1 |
| ALOHA GARDENS UTILITIES | 8,136 | 0 |
| TURTLE LAKES (MAD HATTER EAST) | 7,021 | 0 |
| WEATHERSFIELD | 4,221 | 0 |
| SWS - CYPRESS LAKES | 4,065 | 1 |
| CHASE GROVES(CONSEC.) | 4,052 | 1 |
| FGUA - PLANTATION BAY WTP | 3,522 | 2 |
| APPLE VALLEY (CONSEC) | 3,269 | 0 |
| SUMMERTREE | 2,850 | 0 |
| LABRADOR (FOREST LAKE ESTATES) | 2,728 | 0 |
| PENNBROOKE | 2,488 | 0 |
| RAVENNA PARK | 2,105 | 0 |
| LAKE FAIRWAYS MOBILE HOME PARK | 2,000 | 4 |
| LAKE GIBSON ESTATES | 1,897 | 0 |
| GOLDEN HILLS GOLF ; TURF WTP | 1,859 | 0 |
| LAKE TARPON MOBILE HOME VILLAG | 1,799 | 1 |
| COLONIAL MANOR WATER SYSTEM | 1,794 | 0 |
| MEREDITH MANOR (CONSEC.) | 1,748 | 0 |
| CYPRESS COVE - FOXWOOD | 1,588 | 0 |
| ANGUS VALLEY | 1,500 | 0 |
| PALM VALLEY MOBILE HOME PARK | 1,476 | 11 |
| BEVERLY BEACH WATER SYSTEM | 1,413 | 10 |
| ANCLOTE VILLAGE | 1,257 | 0 |
| PARADISE LAKES | 1,173 | 0 |
| SUNSHADOW APARTMENTS (CONSEC) | 986 | 0 |
| MULLETT LAKE WATER ASSOCIATION | 976 | 4 |
| CRESCENT HEIGHTS S/D(CONSEC) | 969 | 0 |
| DIXIE GROVES ESTATES | 880 | 0 |
| JANSEN S/D | 868 | 0 |
| OAKLAND SHORES | 788 | 0 |
| VIRGINIA CITY | 787 | 0 |
| BLACK HAMMOCK -MSBU(CONSEC) | 781 | 0 |
| SEMINOLE WOODS | 780 | 1 |
| BEAR LAKE MANOR | 777 | 0 |
| ARREDONDO ESTATES | 738 | 0 |
| INTERLACHEN LAKE ESTATES | 717 | 0 |
| LAKE HARNEY WATER ASSOCIATION | 700 | 33 |
| OVIEDO MARKETPLACE (CONSEC.) | 689 | 0 |
| POMONA PARK | 672 | 0 |
| VILLAGE WATER | 493 | 0 |
| SUNSHINE WATER SERVICES | 476 | 0 |
| GIBSONIA ESTATES WATER SYSTEM | 414 | 0 |
| RIVERGROVE SUBDIVISON | 375 | 0 |
| WESTWOOD S/D | 344 | 0 |
| LAKEVIEW TERRACE RETIREMENT SERVICES | 324 | 1 |
| WELAKA MHP | 318 | 1 |
| TARA VILLAGE | 283 | 0 |
| LINDA LAKE GROVES | 283 | 0 |
| BREEZE HILL MOBILE HOME PARK | 279 | 0 |
| PEACE RIVER HEIGHTS | 250 | 0 |
| PARK RIDGE | 246 | 0 |
| FOUR LAKES | 228 | 0 |
| SPRING COVE RESORTS | 225 | 1 |
| LITTLE WEKIVA ESTATES | 214 | 0 |
| ROSALIE OAKS | 205 | 0 |
| LAKELAND OAK MEADOWS | 200 | 1 |
| CASTLE LAKE PARK | 196 | 0 |
| LAKE BRANTLEY (CONSEC) | 192 | 0 |
| WEST CITRUS UTILITIES | 192 | 0 |
| BEECHER'S POINT S/D | 189 | 0 |
| KENWOOD NORTH | 172 | 0 |
| PINE VALLEY | 164 | 0 |
| LAKE SAUNDERS | 161 | 0 |
| MEADOW DRIVE S | 159 | 0 |
| DAVIS SHORES (CONSEC) | 143 | 0 |
| SARATOGA HARBOR | 111 | 0 |
| WILLOW OAK ESTATES | 108 | 1 |
| DOVERA (CONSEC.) | 96 | 1 |
| SILVER LAKE OAKS MHP | 94 | 9 |
| RAY MAR MHP | 89 | 0 |
| WOOTEN'S MHP | 87 | 13 |
| TAMPA MGM 1 LLC | 78 | 0 |
| FAIRVIEW TERRRACE MOBILE HOME PARK LLC | 72 | 0 |
| VACATION VILLAGE CONDOMINIUMS | 58 | 21 |
| DOGWOOD ESTATES, LLC | 50 | 0 |
TRI Facilities (9)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Decimal LLC | 114.5K lbs |
| 2 | Safety-Kleen Systems Sanford (san) | 9.4K lbs |
| 3 | Inliner Solutions LLC | 8.8K lbs |
| 4 | Core Pipe Products Inc. | 4.3K lbs |
| 5 | Earnest Products | 26 lbs |
| 6 | Roto Ops LLC | 20 lbs |
| 7 | Argos Sanford Concrete Plant | 1 lbs |
| 8 | Maschmeyer-Casselberry Rm | 1 lbs |
| 9 | Titan Florida-Longwood Rmc Plant | 0 lbs |
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| General Dynamics Longwood | NPL Site | 50.00 |
| Sanford Dry Cleaners | NPL Site | 50.00 |
Cities in Seminole (7)
Frequently Asked Questions
What is the environmental risk level in Seminole, Florida? ▼
Are there Superfund sites in Seminole? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.