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LakeQuality

Seminole-Como Lake

B
Grade B — Good
Good · #81 of 122 lakes in the county · 6.1 ft clear · Mesotrophic
Limited DataMesotrophic

Seminole-Como Lake in Seminole County, Florida has a water quality grade of B (Good). Water clarity: 6.1 ft visibility. Phosphorus: 21 µg/L.

Clarity
6.1 ft
Type
Mesotrophic
Trend
Stable

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Seminole-Como Lake is a mesotrophic lake in Seminole County, Florida. Water quality is graded B based on 1 sampling years through 2021. Water clarity is declining over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Seminole-Como Lake ranks #81 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-07-30. Grade methodology: LakeQuality methodology.

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Swimming Safety

Grade only

Bacteria advisory

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Good for swimming, clear water with low algae levels

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Water Quality Grade: B (Good)

Murky, only visible to about 6.1 ft. Phosphorus level: 21 µg/L. Trophic State Index: 49.

MetricValueGrade
Water Clarity (Secchi Depth)6.1 ftNot graded
Phosphorus21 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)49Mesotrophic

Moderate nutrients, good water quality

Where to stay near Seminole-Como Lake

Compare lakeside cabins, hotels, and vacation rentals near Seminole-Como Lake in Seminole County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Seminole-Como Lake

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Florida’s top lakes →

Fishing Seminole-Como Lake

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.344 m/yr6
Phosphorus Improving-6.96 µg/L/yr4
See year-by-year chart →

EPA Impairment Status

Seminole-Como Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Oxygen depletion (low DO)Pathogens (E. coli, fecal)

Source: EPA ATTAINS assessment unit FL2973 · Official waterbody report · Matched by proximity (0.61 km)

County Ranking

Ranked #81 of 122 lakes in Seminole County

Nearby Lakes in Seminole County

Frequently asked questions about Seminole-Como Lake

Where is Seminole-Como Lake?

Seminole-Como Lake is a lake in Seminole County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Seminole-Como Lake?

Seminole-Como Lake in Seminole County, Florida has a water quality grade of B (Good). Water clarity: 6.1 ft visibility. Phosphorus: 21 µg/L.

Is Seminole-Como Lake safe to swim in?

Good for swimming, clear water with low algae levels. Seminole-Como Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.

Planning a trip around Canaveral?

Seminole-Como Lake is about 35 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.

Best time to visit Canaveral

Mesotrophic Lakes in Florida

Where this data comes from

30 measurements from 3 monitoring stations, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX30 samples · 2021
Monitoring station identifiers (3)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database