Cla Lake
Cla Lake in Orange County, Florida has a water quality grade of B (Good). Water clarity: 1.2 ft visibility. Phosphorus: 35.4 µg/L.
- Clarity
- 1.2 ft
- Typical in August
- 85°F
- Type
- Eutrophic
- Trend
- ↓ Declining
Next lake in Orange County
Swipe left or right on this bar to open the next or previous lake.
Cla Lake is a productive, nutrient-rich eutrophic lake in Orange County, Florida. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Compared to the 319 other monitored lakes in Orange County, Cla Lake ranks #52 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-05-13. Grade methodology: LakeQuality methodology.
Watch Cla Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyLow algae
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
Water Quality Grade: B (Good)
Very murky, less than 1.2 ft of visibility. Phosphorus level: 35.4 µg/L. Trophic State Index: 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.2 ft | Not graded |
| Phosphorus | 35.4 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Cla Lake
Compare lakeside cabins, hotels, and vacation rentals near Cla Lake in Orange 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 Cla 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 →
Water Temperature
Cla Lake typically sits around 85°F at the surface in August. Summer average is about 84°F. Usually warmest in Aug (about 85°F) and coldest in Jan (about 59°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 187 field readings (2010–2025) via the EPA Water Quality Portal. See the full Cla Lake water temperature breakdown →
Fishing Cla Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.003 m/yr | 5 |
| Phosphorus | ↓ Declining | +5.48 µg/L/yr | 5 |
EPA Impairment Status
Cla Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2835D · Official waterbody report · Matched by proximity (0.64 km)
County Ranking
Ranked #52 of 320 lakes in Orange County
Nearby Lakes in Orange County
Frequently asked questions about Cla Lake
Where is Cla Lake?
- Cla Lake is a lake in Orange County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Cla Lake?
- Cla Lake in Orange County, Florida has a water quality grade of B (Good). Water clarity: 1.2 ft visibility. Phosphorus: 35.4 µg/L.
Is Cla Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Cla Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Cla Lake?
- Cla Lake typically sits around 85°F at the surface in August, from 187 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Explore Cla Lake across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
196 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- St. Johns River Water Management District
21FLSJWM_WQX196 samples · 2020–2025
Monitoring station identifiers (1)
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