Lake Iliff
Sussex County, New Jersey32 acresView mapDirections
No nutrient or algae sampling on record from NJDEP for this lake.
- Impaired · Impaired biota (cause unknown)
- 32 ft max depth
Lake Iliff in Sussex County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Maximum depth: 32 ft. Surface area: 32 acres.
Lake Iliff is a 32-acre lake in Sussex County, New Jersey with a maximum depth of 32 feet (14-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Lake Iliff is good for
From access and monitoring records, not editorial picks.
- Deep water32 ft surveyed max depth
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. Lake Iliff is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury, metals (other than mercury), pathogens (E. coli, fecal), pesticides, pCBs. Check local advisories before you swim.
Whether Lake Iliff 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 Lake Iliff
These are the measurements NJDEP publishes for Lake Iliff, 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 Lake Iliff
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
32 ft
Average depth
14.4 ft
Surface area
32 acres
Shoreline
1.1 mi
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Stays near Lake Iliff
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Fishing Lake Iliff
EPA Impairment Status
Lake Iliff 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, Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NJ02040105070020-01 · Official waterbody report
Nearby Lakes in Sussex County
Frequently asked questions about Lake Iliff
Where is Lake Iliff?
- Lake Iliff is a lake in Sussex County, New Jersey. Its water-quality measurements are published by NJDEP and shown on this page as reported.
What is the water quality of Lake Iliff?
- Lake Iliff in Sussex County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Maximum depth: 32 ft. Surface area: 32 acres.
Is Lake Iliff safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Iliff is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury, metals (other than mercury), pathogens (E. coli, fecal), pesticides, pCBs. Check local advisories before you swim.
How deep is Lake Iliff?
- Lake Iliff has a maximum depth of 32 feet and an average depth of 14.4 feet. The lake covers 32 acres.
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Where this data comes from
Measurements for Lake Iliff 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