Unl Lake
Cape May County, New JerseyView mapDirections
NJDEP publishes the water-quality measurements for Unl Lake. Here is what has been measured.
- Mesotrophic
- Public access
- Limited data
Unl Lake in Cape May County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Water clarity: 5.6 ft visibility. Phosphorus: 18.3 µg/L. Chlorophyll-a (algae): 6.3 µg/L.
Unl Lake is a mesotrophic lake in Cape May County, New Jersey. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-09-28. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Unl Lake is safe to swim in today is a call for the New Jersey Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Unl Lake
These are the measurements NJDEP publishes for Unl Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.6 ft. Phosphorus 18.3 µg/L. Chlorophyll-a 6.3 µg/L. TSI 49.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.6ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 18.3µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 6.3µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 49 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Answers come straight from the public measurements and survey records on this page.
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Fishing Unl Lake
Nearby Lakes in Cape May County
Frequently asked questions about Unl Lake
Where is Unl Lake?
- Unl Lake is a lake in Cape May County, New Jersey. Its water-quality measurements are published by NJDEP and shown on this page as reported.
What is the water quality of Unl Lake?
- Unl Lake in Cape May County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Water clarity: 5.6 ft visibility. Phosphorus: 18.3 µg/L. Chlorophyll-a (algae): 6.3 µg/L.
Is Unl Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Unl Lake?
- Public access to Unl Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by New Jersey's fish and wildlife agency, so check its current regulations before you go.
Explore Unl Lake across LakeQuality
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Where this data comes from
30 measurements from 2 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_BFBM30 samples · 2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (2)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.