Lake Powell
Coconino County, Arizona160,784 acresView mapDirections
No nutrient or algae sampling on record from ADEQ for this lake.
- Impaired · Mercury
- Public access
- Limited data
Lake Powell in Coconino County, Arizona has water-quality measurements published by ADEQ, shown here as reported. Surface area: 160784 acres.
Lake Powell is a 160,784-acre lake in Coconino County, Arizona. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2026-03-29. Methodology: how these readings are compared.
At about 161,000 acres, Lake Powell is large enough that where you stay decides which shore you see most of. It has 2 public boat landings, so a lakefront rental is not the only way to get a boat on the water. For a place on the water, look through cabin and lake-house rentals near Lake Powell on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Lake Powell is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
- Camping1 public campground nearby
- Big water160,784 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Lake Powell is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Lake Powell 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.
Water quality measurements for Lake Powell
These are the measurements ADEQ publishes for Lake Powell, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Lake Powell
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
160,784 acres
Public access
Yes
Listed by ADEQ
No bathymetric survey has been published for Lake Powell, so its depth is not documented here.
Recreation & Access
- Wahweap - 1Public
- Wahweap - 2Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Lake Powell
- Wahweap Campground2.1 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Lake Powell
Compare lakeside cabins, hotels, and vacation rentals near Lake Powell 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 Lake Powell
Prices for Oct 30–Nov 1, 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 trip? Cabins and lodging at Lake Powell → · more Arizona lake trips
Follow Lake Powell’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Lake Powell
Reservoir Info (USACE NID)
Lake Powell is a man-made reservoir impounded by the Glen Canyon Dam (completed 1963), built primarily for hydroelectric on the Colorado River; concrete-type dam, 710 ft tall and 1,560 ft long.
- Surface area
- 160,784 ac
- Max storage
- 25,025,826 ac-ft
- Drainage area
- 107,416.9 sq mi
- Hazard class
- High
- Owner
- BUREAU OF RECLAMATION
All listed purposes: Hydroelectric;Other;Irrigation;Recreation.
Source: USACE National Inventory of Dams, NID ID AZ10307 · Operator website
EPA Impairment Status
Lake Powell is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit AZL14070006-1130_00 · Official waterbody report
Nearby Lakes in Coconino County
Frequently asked questions about Lake Powell
Where is Lake Powell?
- Lake Powell 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 Lake Powell?
- Lake Powell in Coconino County, Arizona has water-quality measurements published by ADEQ, shown here as reported. Surface area: 160784 acres.
Is Lake Powell safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Powell is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Are there boat ramps on Lake Powell?
- Lake Powell has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Wahweap - 1, Wahweap - 2. Public access is listed as yes.
Can I fish at Lake Powell?
- Lake Powell has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Arizona's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Lake Powell?
- Lake Powell has 1 public campground from USGS The National Map within 5 km, including Wahweap Campground. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Lake Powell across LakeQuality
Planning a trip around Glen Canyon?
Lake Powell is about 4 miles from Glen Canyon National Recreation Area. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Glen Canyon →More lakes in Arizona
Other Lakes in Arizona
Where this data comes from
5 measurements from 1 monitoring station, 2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Great Lakes Environmental Center
GLEC5 samples · 2026
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 300.0 ~ EPA; Determination of Inorganic Anions by Ion Chromatography
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles