Polk-Lulu Lake
Polk-Lulu Lake in Polk County, Florida has a water quality grade of B (Good). Water clarity: 3 ft visibility. Phosphorus: 31 µg/L. Surface area: 4640 acres.
- Clarity
- 3 ft
- Area
- 4,640 acres
- Type
- Eutrophic
- Trend
- ↑ Improving
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Polk-Lulu Lake is a 4,640-acre productive, nutrient-rich eutrophic lake in Polk County, Florida. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is improving over recent sampling years. Compared to the 176 other monitored lakes in Polk County, Polk-Lulu Lake ranks #21 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-25. Grade methodology: LakeQuality methodology.
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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 3 ft of visibility. Phosphorus level: 31 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | Not graded |
| Phosphorus | 31 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Polk-Lulu Lake
Compare lakeside cabins, hotels, and vacation rentals near Polk-Lulu Lake in Polk 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 Polk-Lulu Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 4,640 acres |
No bathymetric survey has been published for Polk-Lulu Lake, so its depth is not documented here.
Fishing Polk-Lulu Lake
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.034 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.66 µg/L/yr | 6 |
Reservoir Info (USACE NID)
Polk-Lulu Lake is a man-made reservoir impounded by the Southern Chain of Lakes Outfall, built primarily for flood risk reduction on the Wahneta Farms Drainage Canal; earth-type dam, 9 ft tall and 78 ft long.
- Surface area
- 4,640 ac
- Normal storage
- 9,280 ac-ft
- Max storage
- 21,864 ac-ft
- Hazard class
- Significant
- Owner
- RICK JAMES INVESTMENTS, LLC
All listed purposes: Flood Risk Reduction;Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID FL13403 · Operator website · Matched by proximity (0.93 km)
EPA Impairment Status
Polk-Lulu Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL1521 · Official waterbody report · Matched by proximity (0.13 km)
County Ranking
Ranked #21 of 177 lakes in Polk County
Nearby Lakes in Polk County
Frequently asked questions about Polk-Lulu Lake
Where is Polk-Lulu Lake?
- Polk-Lulu Lake is a lake in Polk County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Polk-Lulu Lake?
- Polk-Lulu Lake in Polk County, Florida has a water quality grade of B (Good). Water clarity: 3 ft visibility. Phosphorus: 31 µg/L. Surface area: 4640 acres.
Is Polk-Lulu Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Polk-Lulu Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
Explore Polk-Lulu Lake across LakeQuality
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Where this data comes from
101 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX101 samples · 2020–2025
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