Where is Lake Gerard?

Lake Gerard is a lake in Sussex County, New Jersey. Its water-quality measurements are published by NJDEP and shown on this page as reported.

Lake Gerard

Sussex County, New Jersey94 acresView map Directions

No nutrient or algae sampling on record from NJDEP for this lake.

Area

94 acres

Surface area

Shoreline

4.3 mi

Measured length

Impaired · Oxygen depletion (low DO)

See the measurements Directions Where to stay

Lake Gerard in Sussex County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Surface area: 94 acres.

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Lake Gerard is a 94-acre lake in Sussex County, New Jersey.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Lake Gerard is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity, temperature. Check local advisories before you swim.

Whether Lake Gerard 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.

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Water quality measurements for Lake Gerard

These are the measurements NJDEP publishes for Lake Gerard, 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.

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Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

94 acres

Shoreline

4.3 mi

No bathymetric survey has been published for Lake Gerard, so its depth is not documented here.

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Stays near Lake Gerard

Compare lakeside cabins, hotels, and vacation rentals near Lake Gerard in Sussex 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.

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Fishing Lake Gerard

→ Lake Gerard fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Lake Gerard is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Oxygen depletion (low DO)pH / acidityTemperature

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit NJ02020007010030-01 · Official waterbody report

Nearby Lakes in Sussex County

Silver Lake3.9 ft clear · Eutrophic1.3 miView →Beaver Lake1.6 miView →Franklin Pond2 miView →Lake Stockholm2.7 miView →Ryker Lake—View →Lake Wildwood3.5 miView →

Frequently asked questions about Lake Gerard

Where is Lake Gerard?: Lake Gerard 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 Gerard?: Lake Gerard in Sussex County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Surface area: 94 acres.
Is Lake Gerard safe to swim in?: Nutrient and algae readings are not a swimming clearance. Lake Gerard is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity, temperature. Check local advisories before you swim.