Where is Second Lake?

Second Lake is a lake in Linn County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.

Second Lake

Linn County, Oregon50 acresView map Directions

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

Area

50 acres

Surface area

Shoreline

3.1 mi

Measured length

Impaired · Noxious aquatic plants

See the measurements Directions Where to stay

Second Lake in Linn County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 50 acres.

Loading map…

Second Lake is a 50-acre lake in Linn County, Oregon.

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

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Second Lake is listed impaired under Clean Water Act §303(d) (IR 5) for noxious aquatic plants. Check local advisories before you swim.

Whether Second Lake 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.

Get alerts for Second Lake →

Water quality measurements for Second Lake

These are the measurements Oregon DEQ publishes for Second Lake, 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 Second Lake

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

Lake Details

Surface area

50 acres

Shoreline

3.1 mi

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

Stays via Stay22

Stays near Second Lake

Compare lakeside cabins, hotels, and vacation rentals near Second Lake in Linn 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.

Top-rated places to stay near Second Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Oregon’s top lakes →

Follow Second Lake’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Second Lake

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

EPA Impairment Status

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

Causes of impairment

Noxious aquatic plants

Designated uses not supporting: Recreation, Other.

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

Source: EPA ATTAINS assessment unit OR_LK_1709000306_02_100718 · Official waterbody report

Nearby Lakes in Linn County

Fisher Island Pond11 miView →Western Log Pond10.5 miView →Snow Peak Log Pond10.7 miView →Cheadle Lake13.1 miView →Willamette Log Pond—View →Foster LakeMesotrophic—View →

Frequently asked questions about Second Lake

Where is Second Lake?: Second Lake is a lake in Linn County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Second Lake?: Second Lake in Linn County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 50 acres.
Is Second Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Second Lake is listed impaired under Clean Water Act §303(d) (IR 5) for noxious aquatic plants. Check local advisories before you swim.