Where is Dan Green Slough?

Dan Green Slough is a lake in Clay County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.

Dan Green Slough

Clay County, Iowa278 acresView map Directions

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

Area

278 acres

Surface area

Shoreline

5.8 mi

Measured length

Impaired · Oxygen depletion (low DO)

See the measurements Directions Where to stay

Dan Green Slough in Clay County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 278 acres.

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Dan Green Slough is a 278-acre lake in Clay County, Iowa.

Source: EPA Water Quality Portal sampling records, Iowa DNR. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

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

Whether Dan Green Slough is safe to swim in today is a call for the Iowa Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Dan Green Slough

These are the measurements Iowa DNR publishes for Dan Green Slough, 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

278 acres

Shoreline

5.8 mi

No bathymetric survey has been published for Dan Green Slough, so its depth is not documented here.

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Stays near Dan Green Slough

Compare lakeside cabins, hotels, and vacation rentals near Dan Green Slough in Clay County, Iowa — 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 Dan Green Slough

→ Dan Green Slough fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Dan Green Slough is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Oxygen depletion (low DO)pH / acidity

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit IA 06-LSR-1634 · Official waterbody report

Nearby Lakes in Clay County

Trumbull Lake3.4 miView →Round Lake4.3 miView →Mud Lake4.9 miView →Elk Lake10.6 miView →Stolley Pit Lake2.7 ft clear · Eutrophic—View →

Frequently asked questions about Dan Green Slough

Where is Dan Green Slough?: Dan Green Slough is a lake in Clay County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.
What is the water quality of Dan Green Slough?: Dan Green Slough in Clay County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 278 acres.
Is Dan Green Slough safe to swim in?: Nutrient and algae readings are not a swimming clearance. Dan Green Slough is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.