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

Are there boat ramps on Blue Lake?

Blue Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Blue Lake Park. Public access is listed as yes.

Can I fish at Blue Lake?

Blue Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Oregon's fish and wildlife agency, so check its current regulations before you go.

Blue Lake

Multnomah County, Oregon66 acresView map Directions

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

Area

66 acres

Surface area

Shoreline

2 mi

Measured length

Impaired · Algal growth
Public access

See the measurements Directions Where to stay

Blue Lake in Multnomah County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 66 acres.

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Blue Lake is a 66-acre lake in Multnomah County, Oregon. Limited fish-species data available. Public access is available with 1 public boat landing.

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

What Blue Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Blue Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, pH / acidity. Check local advisories before you swim.

Whether Blue 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.

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Water quality measurements for Blue Lake

These are the measurements Oregon DEQ publishes for Blue 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 Blue Lake

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

Lake Details

Surface area

66 acres

Shoreline

2 mi

Public access

Yes

Listed by Oregon DEQ

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

Recreation & Access

Boat Landings

Yes

Public Access

Blue Lake ParkPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Blue Lake

Compare lakeside cabins, hotels, and vacation rentals near Blue Lake in Multnomah 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 Blue Lake

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

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Fishing Blue Lake

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

EPA Impairment Status

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

Causes of impairment

Algal growthpH / acidity

Designated uses not supporting: Drinking water, Aquatic life, Fish consumption, Recreation, Other.

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

Source: EPA ATTAINS assessment unit OR_LK_1709001202_02_100854 · Official waterbody report

Nearby Lakes in Multnomah County

Fairview Lake0.3 miView →Jewit Lake3 miView →Smith Lake14.1 miView →Bybee Lake15.4 miView →Bull Run Reservoir Number Two—View →Bull Run Reservoir Number One—View →

Frequently asked questions about Blue Lake

Where is Blue Lake?: Blue Lake is a lake in Multnomah County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Blue Lake?: Blue Lake in Multnomah County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 66 acres.
Is Blue Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Blue Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, pH / acidity. Check local advisories before you swim.
Are there boat ramps on Blue Lake?: Blue Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Blue Lake Park. Public access is listed as yes.
Can I fish at Blue Lake?: Blue Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Oregon's fish and wildlife agency, so check its current regulations before you go.