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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

New Castle County Lake Quality

Delaware, 7 lakes, measured by DNREC

New Castle County has 7 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The 7 monitored lakes in New Castle County carry whatever clarity, phosphorus, and chlorophyll-a readings DNREC has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near New Castle County

Top-rated places to stay near New Castle County

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Quick Answers for New Castle County

Cleanest lakes in New Castle County →Best swimming lakes in Delaware →

Planning a trip? Check special fishing regulations for Becks Pond — or check the official Delaware fishing regulations.

All Lakes in New Castle County

7 lakes · 0 ranked on readings, 7 without enough sampling0 lakes ranked on readings · 7 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Becks PondNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Duck Creek PondNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hoopes ReservoirNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lums PondNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Noxontown LakeNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Silver LakeNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samples9 ftNot recorded
Sunset LakeNew CastleNo recent samplesNo recent samplesNo recent samplesNo recent samples39 ftNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Other Counties in Delaware

Kent County

15 lakes

Sussex County

29 lakes

Browse every Delaware lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the Delaware Department of Natural Resources and Environmental Control. See data sources.