Lake Lenape
Lake Lenape in Atlantic County, New Jersey has a water quality grade of A (Excellent). Water clarity: 2.7 ft visibility. Phosphorus: 42.6 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Surface area: 300 acres.
- Clarity
- 2.7 ft
- Area
- 300 acres
- Type
- Mesotrophic
- Public access
- Yes
Lake Lenape is a 300-acre mesotrophic lake in Atlantic County, New Jersey. Water quality is graded A based on 1 sampling years through 2021. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 5 other monitored lakes in Atlantic County, Lake Lenape ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-11-17. 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.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Very murky, less than 2.7 ft of visibility. Phosphorus level: 42.6 µg/L. Chlorophyll-a: 2.4 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 ft | Not graded |
| Phosphorus | 42.6 µg/L | Not graded |
| Chlorophyll-a (Algae) | 2.4 µg/L | Good |
| Trophic State Index (TSI) | 53 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake Lenape
Compare lakeside cabins, hotels, and vacation rentals near Lake Lenape in Atlantic 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 Lake Lenape
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 300 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Lenape, so its depth is not documented here.
Recreation & Access
- Mays Landing MarinaPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Lake Lenape
Reservoir Info (USACE NID)
Lake Lenape is a man-made reservoir impounded by the Lake Lenape Dam (completed 1879), built primarily for recreation on the Great Egg Harbor River; earth-type dam, 29 ft tall and 1,050 ft long.
- Surface area
- 300 ac
- Normal storage
- 4,500 ac-ft
- Max storage
- 6,610 ac-ft
- Drainage area
- 205 sq mi
- Hazard class
- High
- Owner
- Township of Hamilton
Source: USACE National Inventory of Dams, NID ID NJ00450 · Operator website
County Ranking
Ranked #1 of 6 lakes in Atlantic County
Nearby Lakes in Atlantic County
Frequently asked questions about Lake Lenape
Where is Lake Lenape?
- Lake Lenape is a lake in Atlantic County, New Jersey. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Lenape?
- Lake Lenape in Atlantic County, New Jersey has a water quality grade of A (Excellent). Water clarity: 2.7 ft visibility. Phosphorus: 42.6 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Surface area: 300 acres.
Is Lake Lenape safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Lake Lenape has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 2.4 µg/L. Always check local health department advisories before swimming.
Are there boat ramps on Lake Lenape?
- Lake Lenape has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mays Landing Marina. Public access is listed as yes.
Explore Lake Lenape across LakeGrade
More New Jersey Lake Rankings
Other Grade A Lakes in New Jersey
Mesotrophic Lakes in New Jersey
Where this data comes from
136 measurements from 4 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- NJDEP Bureau of Freshwater and Biological Monitoring
NJDEP_BFBM136 samples · 2020–2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (4)
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
Named boat-access points from the USGS National Boat Ramps inventory