Reservoir Number Two
Jefferson County, Iowa48 acresView mapDirections
No nutrient or algae sampling on record from Iowa DNR for this lake.
- Impaired · Sediment / turbidity
Reservoir Number Two in Jefferson County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 48 acres.
Reservoir Number Two is a 48-acre lake in Jefferson County, Iowa.
Source: EPA Water Quality Portal sampling records, Iowa DNR. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Reservoir Number Two is listed impaired under Clean Water Act §303(d) (IR 4A) for sediment / turbidity. Check local advisories before you swim.
Whether Reservoir Number Two 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.
Water quality measurements for Reservoir Number Two
These are the measurements Iowa DNR publishes for Reservoir Number Two, 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 Reservoir Number Two
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
48 acres
Shoreline
2.5 mi
No bathymetric survey has been published for Reservoir Number Two, so its depth is not documented here.
Stays via Stay22
Stays near Reservoir Number Two
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Fishing Reservoir Number Two
EPA Impairment Status
Reservoir Number Two is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit IA 03-SKU-910 · Official waterbody report
Nearby Lakes in Jefferson County
Frequently asked questions about Reservoir Number Two
Where is Reservoir Number Two?
- Reservoir Number Two is a lake in Jefferson County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.
What is the water quality of Reservoir Number Two?
- Reservoir Number Two in Jefferson County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 48 acres.
Is Reservoir Number Two safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Reservoir Number Two is listed impaired under Clean Water Act §303(d) (IR 4A) for sediment / turbidity. Check local advisories before you swim.
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Where this data comes from
Measurements for Reservoir Number Two 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