Putnam-Broward Lake
Putnam-Broward Lake in Putnam County, Florida has a water quality grade of B (Good). Water clarity: 11 ft visibility. Phosphorus: 12 µg/L.
- Clarity
- 11 ft
- Type
- Mesotrophic
- Trend
- ↓ Declining
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Putnam-Broward Lake is a mesotrophic lake in Putnam 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 27 other monitored lakes in Putnam County, Putnam-Broward Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-01-28. 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)
Good clarity, visible to about 11 ft. Phosphorus level: 12 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11 ft | Not graded |
| Phosphorus | 12 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Putnam-Broward Lake
Compare lakeside cabins, hotels, and vacation rentals near Putnam-Broward Lake in Putnam 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 Putnam-Broward Lake
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Planning a whole trip? See where to stay at Florida’s top lakes →
Fishing Putnam-Broward Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -1.354 m/yr | 5 |
| Phosphorus | ↓ Declining | +0.65 µg/L/yr | 5 |
EPA Impairment Status
Putnam-Broward 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 FL2617A · Official waterbody report · Matched by proximity (0.27 km)
County Ranking
Ranked #6 of 28 lakes in Putnam County
Nearby Lakes in Putnam County
Frequently asked questions about Putnam-Broward Lake
Where is Putnam-Broward Lake?
- Putnam-Broward Lake is a lake in Putnam County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Putnam-Broward Lake?
- Putnam-Broward Lake in Putnam County, Florida has a water quality grade of B (Good). Water clarity: 11 ft visibility. Phosphorus: 12 µg/L.
Is Putnam-Broward Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Putnam-Broward Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
Explore Putnam-Broward Lake across LakeQuality
Planning a trip around Fort Matanzas?
Putnam-Broward Lake is about 26 miles from Fort Matanzas National Monument. 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 Fort Matanzas →More Florida Lake Rankings
Other Grade B Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
209 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_WQX209 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