Upper Greenwood Lake
Passaic County, New Jersey416 acresView mapDirections
No nutrient or algae sampling on record from NJDEP for this lake.
- Impaired · Metals (other than mercury)
- 11 ft max depth
Upper Greenwood Lake in Passaic County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Maximum depth: 10.8 ft. Surface area: 416 acres.
Upper Greenwood Lake is a 416-acre lake in Passaic County, New Jersey with a maximum depth of 11 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Upper Greenwood Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), pH / acidity. Check local advisories before you swim.
Whether Upper Greenwood 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 Upper Greenwood Lake
These are the measurements NJDEP publishes for Upper Greenwood Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Upper Greenwood Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
10.8 ft
Surface area
416 acres
Shoreline
9.7 mi
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Fishing Upper Greenwood Lake
EPA Impairment Status
Upper Greenwood Lake 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: Drinking water, Aquatic life.
Source: EPA ATTAINS assessment unit NJ02020007040060-01 · Official waterbody report
Nearby Lakes in Passaic County
Frequently asked questions about Upper Greenwood Lake
Where is Upper Greenwood Lake?
- Upper Greenwood Lake 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 Upper Greenwood Lake?
- Upper Greenwood Lake in Passaic County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Maximum depth: 10.8 ft. Surface area: 416 acres.
Is Upper Greenwood Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Upper Greenwood Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), pH / acidity. Check local advisories before you swim.
How deep is Upper Greenwood Lake?
- Upper Greenwood Lake has a maximum depth of 10.8 feet. The lake covers 416 acres.
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Where this data comes from
Measurements for Upper Greenwood Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database