Unl Lake
Unl Lake in Burlington County, New Jersey has a water quality grade of C (Fair). Water clarity: 1.8 ft visibility. Phosphorus: 143.5 µg/L. Chlorophyll-a (algae): 2.3 µg/L.
- Clarity
- 1.8 ft
- Type
- Mesotrophic
Unl Lake is a mesotrophic lake in Burlington County, New Jersey. Water quality is graded C based on 2 sampling years through 2021. Compared to the 11 other monitored lakes in Burlington County, Unl Lake ranks #7 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-11-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Very murky, less than 1.8 ft of visibility. Phosphorus level: 143.5 µg/L. Chlorophyll-a: 2.3 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.8 ft | Not graded |
| Phosphorus | 143.5 µg/L | Poor |
| Chlorophyll-a (Algae) | 2.3 µg/L | Good |
| Trophic State Index (TSI) | 61 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Unl Lake
Compare lakeside cabins, hotels, and vacation rentals near Unl Lake in Burlington County, New Jersey — 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 Unl Lake
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Fishing Unl Lake
County Ranking
Ranked #7 of 12 lakes in Burlington County
Nearby Lakes in Burlington County
Frequently asked questions about Unl Lake
Where is Unl Lake?
- Unl Lake is a lake in Burlington County, New Jersey. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Unl Lake?
- Unl Lake in Burlington County, New Jersey has a water quality grade of C (Fair). Water clarity: 1.8 ft visibility. Phosphorus: 143.5 µg/L. Chlorophyll-a (algae): 2.3 µg/L.
Is Unl Lake safe to swim in?
- Generally safe for swimming, moderate water quality. Unl Lake has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 2.3 µg/L. Always check local health department advisories before swimming.
Explore Unl Lake across LakeGrade
More New Jersey Lake Rankings
Other Grade C Lakes in New Jersey
Mesotrophic Lakes in New Jersey
Where this data comes from
46 measurements from 3 monitoring stations, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- NJDEP Bureau of Freshwater and Biological Monitoring
NJDEP_BFBM46 samples · 2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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.