Oak Ridge Reservoir
Morris County, New Jersey464 acresView mapDirections
No nutrient or algae sampling on record from NJDEP for this lake.
- Impaired · Mercury
Oak Ridge Reservoir in Morris County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Surface area: 464 acres.
Oak Ridge Reservoir is a 464-acre lake in Morris County, New Jersey.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. Oak Ridge Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, metals (other than mercury), oxygen depletion (low DO), pathogens (E. coli, fecal), temperature. Check local advisories before you swim.
Whether Oak Ridge Reservoir 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 Oak Ridge Reservoir
These are the measurements NJDEP publishes for Oak Ridge Reservoir, 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 Oak Ridge Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
464 acres
Shoreline
8.5 mi
No bathymetric survey has been published for Oak Ridge Reservoir, so its depth is not documented here.
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Stays near Oak Ridge Reservoir
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Fishing Oak Ridge Reservoir
EPA Impairment Status
Oak Ridge Reservoir 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 NJ02030103050030-01 · Official waterbody report
Nearby Lakes in Morris County
Frequently asked questions about Oak Ridge Reservoir
Where is Oak Ridge Reservoir?
- Oak Ridge Reservoir is a lake in Morris County, New Jersey. Its water-quality measurements are published by NJDEP and shown on this page as reported.
What is the water quality of Oak Ridge Reservoir?
- Oak Ridge Reservoir in Morris County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Surface area: 464 acres.
Is Oak Ridge Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Oak Ridge Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, metals (other than mercury), oxygen depletion (low DO), pathogens (E. coli, fecal), temperature. Check local advisories before you swim.
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Where this data comes from
Measurements for Oak Ridge Reservoir 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