Skyline Lakes
Passaic County, New Jersey18 acresView mapDirections
NJDEP publishes the water-quality measurements for Skyline Lakes. Here is what has been measured.
- Eutrophic
- Impaired · Impaired biota (cause unknown)
- Limited data
Skyline Lakes in Passaic County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Water clarity: 5.7 ft visibility. Phosphorus: 42.1 µg/L. Chlorophyll-a (algae): 25.9 µg/L. Surface area: 18 acres.
Skyline Lakes is a 18-acre productive, nutrient-rich eutrophic lake in Passaic County, New Jersey. Compared to the 5 other monitored lakes in Passaic County, Skyline Lakes ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-11-02. Methodology: how these readings are compared.
Swimming conditions
Readings onlyBacteria advisory
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. Skyline Lakes is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), pathogens (E. coli, fecal), temperature. Check local advisories before you swim.
Whether Skyline Lakes 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 Skyline Lakes
These are the measurements NJDEP publishes for Skyline Lakes, 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 5.7 ft. Phosphorus 42.1 µg/L. Chlorophyll-a 25.9 µg/L. TSI 58.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.7ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 42.1µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 25.9µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 58 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Skyline Lakes
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
18 acres
No bathymetric survey has been published for Skyline Lakes, so its depth is not documented here.
Stays via Stay22
Stays near Skyline Lakes
Compare lakeside cabins, hotels, and vacation rentals near Skyline Lakes in Passaic 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Skyline Lakes are listed below.
Top-rated places to stay near Skyline Lakes
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Skyline Lakes’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Skyline Lakes
Reservoir Info (USACE NID)
Skyline Lakes is a man-made reservoir impounded by the Skyline Lake #2 (Upper) Dam (completed 1946), built primarily for recreation on the Shepard Brook; earth-type dam, 24 ft tall and 230 ft long.
- Surface area
- 18 ac
- Normal storage
- 330 ac-ft
- Max storage
- 400 ac-ft
- Drainage area
- 2.8 sq mi
- Hazard class
- High
- Owner
- Skyline Lake Property Owners
Source: USACE National Inventory of Dams, NID ID NJ00200 · Operator website · Matched by proximity (0.51 km)
EPA Impairment Status
Skyline Lakes is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation.
Source: EPA ATTAINS assessment unit NJ02030103070060-01 · Official waterbody report
Nearby Lakes in Passaic County
Frequently asked questions about Skyline Lakes
Where is Skyline Lakes?
- Skyline Lakes is a lake in Passaic County, New Jersey. Its water-quality measurements are published by NJDEP and shown on this page as reported.
What is the water quality of Skyline Lakes?
- Skyline Lakes in Passaic County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Water clarity: 5.7 ft visibility. Phosphorus: 42.1 µg/L. Chlorophyll-a (algae): 25.9 µg/L. Surface area: 18 acres.
Is Skyline Lakes safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Skyline Lakes is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), pathogens (E. coli, fecal), temperature. Check local advisories before you swim.
Explore Skyline Lakes across LakeQuality
More lakes in New Jersey
Other Lakes in New Jersey
Eutrophic Lakes in New Jersey
Where this data comes from
32 measurements from 2 monitoring stations, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- NJDEP Bureau of Freshwater and Biological Monitoring
NJDEP_BFBM32 samples · 2022
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database