Where is Aaron Mercer Reservoir?

Aaron Mercer Reservoir is a lake in Polk County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.

Aaron Mercer Reservoir

Polk County, Oregon55 acresView map Directions

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

Area

55 acres

Surface area

Impaired · Oxygen depletion (low DO)

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Aaron Mercer Reservoir in Polk County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 55 acres.

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Aaron Mercer Reservoir is a 55-acre lake in Polk County, Oregon.

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

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Aaron Mercer Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for oxygen depletion (low DO). Check local advisories before you swim.

Whether Aaron Mercer Reservoir is safe to swim in today is a call for the Oregon Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Aaron Mercer Reservoir

These are the measurements Oregon DEQ publishes for Aaron Mercer 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.

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

Lake Details

Surface area

55 acres

No bathymetric survey has been published for Aaron Mercer Reservoir, so its depth is not documented here.

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Stays near Aaron Mercer Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Aaron Mercer Reservoir in Polk County, Oregon — 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 Aaron Mercer Reservoir

→ Aaron Mercer Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Aaron Mercer Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Oxygen depletion (low DO)

Designated uses not supporting: Aquatic life.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit OR_LK_1709000701_02_100778 · Official waterbody report

Nearby Lakes in Polk County

Morgan Lake12.1 miView →Lillie Walker Irrigation Pond15.4 miView →Thompson Lake24.5 miView →Clemens Log Pond—View →McGuire Reservoir—View →Fisher Island Pond—View →

Frequently asked questions about Aaron Mercer Reservoir

Where is Aaron Mercer Reservoir?: Aaron Mercer Reservoir is a lake in Polk County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Aaron Mercer Reservoir?: Aaron Mercer Reservoir in Polk County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 55 acres.
Is Aaron Mercer Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Aaron Mercer Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for oxygen depletion (low DO). Check local advisories before you swim.