Where is Stoneman Lake?

Stoneman Lake is a lake in Coconino County, Arizona. Its water-quality measurements are published by ADEQ and shown on this page as reported.

Stoneman Lake

Coconino County, Arizona141 acresView map Directions

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

Area

141 acres

Surface area

Shoreline

1.9 mi

Measured length

Impaired · Oxygen depletion (low DO)

See the measurements Directions Where to stay

Stoneman Lake in Coconino County, Arizona has water-quality measurements published by ADEQ, shown here as reported. Surface area: 141 acres.

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Stoneman Lake is a 141-acre lake in Coconino County, Arizona.

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

Swimming conditions

No reading

Recreation use not supported

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

Whether Stoneman Lake is safe to swim in today is a call for the Arizona 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 Stoneman Lake

These are the measurements ADEQ publishes for Stoneman 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 Stoneman Lake

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

Lake Details

Surface area

141 acres

Shoreline

1.9 mi

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

Stays via Stay22

Stays near Stoneman Lake

Compare lakeside cabins, hotels, and vacation rentals near Stoneman Lake in Coconino County, Arizona — 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 Stoneman Lake

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Fishing Stoneman Lake

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

EPA Impairment Status

Stoneman Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Oxygen depletion (low DO)pH / acidity

Designated uses not supporting: Aquatic life, Recreation, Other.

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

Source: EPA ATTAINS assessment unit AZL15060202-1490_00 · Official waterbody report

Nearby Lakes in Coconino County

Mormon Lake11.8 miView →Odell Lake12.5 miView →Pine Lake13.1 miView →Grass Flat Tank14.3 miView →Mud Lake13.5 miView →Perry Lake—View →

Frequently asked questions about Stoneman Lake

Where is Stoneman Lake?: Stoneman Lake is a lake in Coconino County, Arizona. Its water-quality measurements are published by ADEQ and shown on this page as reported.
What is the water quality of Stoneman Lake?: Stoneman Lake in Coconino County, Arizona has water-quality measurements published by ADEQ, shown here as reported. Surface area: 141 acres.
Is Stoneman Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Stoneman Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.