American Falls R-Little Hole Draw Lake
Power County, IdahoView mapDirections
Idaho DEQ publishes the water-quality measurements for American Falls R-Little Hole Draw Lake. Here is what has been measured.
- Eutrophic
- Impaired · Algal growth
- Limited data
American Falls R-Little Hole Draw Lake in Power County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Phosphorus: 61 µg/L. Chlorophyll-a (algae): 13.1 µg/L.
American Falls R-Little Hole Draw Lake is a productive, nutrient-rich eutrophic lake in Power County, Idaho. Phosphorus level is improving over recent sampling years. Compared to the 5 other monitored lakes in Power County, American Falls R-Little Hole Draw Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, IDEQ, last sampled 2017-09-27. Methodology: how these readings are compared.
For a place on the water, look through cabin and lake-house rentals near American Falls R-Little Hole Draw Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. American Falls R-Little Hole Draw Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen), oxygen depletion (low DO), sediment / turbidity. Check local advisories before you swim.
Whether American Falls R-Little Hole Draw Lake is safe to swim in today is a call for the Idaho Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for American Falls R-Little Hole Draw Lake
These are the measurements Idaho DEQ publishes for American Falls R-Little Hole Draw 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. Phosphorus 61 µg/L. Chlorophyll-a 13.1 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 61µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 13.1µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about American Falls R-Little Hole Draw Lake
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near American Falls R-Little Hole Draw Lake
Compare lakeside cabins, hotels, and vacation rentals near American Falls R-Little Hole Draw Lake in Power County, Idaho — 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around American Falls R-Little Hole Draw Lake are listed below.
Top-rated places to stay near American Falls R-Little Hole Draw Lake
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 whole trip? See where to stay at Idaho’s top lakes →
Follow American Falls R-Little Hole Draw Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing American Falls R-Little Hole Draw Lake
Water Quality Trend: Stable
Based on 4 years of monitoring (2012–2017).
Phosphorus
Improving-6.43 µg/L/yr4 years
Chlorophyll-a
Worsening+4.99 µg/L/yr4 years
EPA Impairment Status
American Falls R-Little Hole Draw Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit ID17040206SK001L_0L · Official waterbody report
Nearby Lakes in Power County
Frequently asked questions about American Falls R-Little Hole Draw Lake
Where is American Falls R-Little Hole Draw Lake?
- American Falls R-Little Hole Draw Lake is a lake in Power County, Idaho. Its water-quality measurements are published by Idaho DEQ and shown on this page as reported.
What is the water quality of American Falls R-Little Hole Draw Lake?
- American Falls R-Little Hole Draw Lake in Power County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Phosphorus: 61 µg/L. Chlorophyll-a (algae): 13.1 µg/L.
Is American Falls R-Little Hole Draw Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. American Falls R-Little Hole Draw Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen), oxygen depletion (low DO), sediment / turbidity. Check local advisories before you swim.
Explore American Falls R-Little Hole Draw Lake across LakeQuality
2 thermal springs within 15.9 mi, nearest Indian Springs
Species activity outlook by water temperature and season
Where to stay at Idaho's top lakes, each with its readings
Idaho's cleanest lakes, ranked on agency measurements
More lakes in Idaho
Other Lakes in Idaho
Eutrophic Lakes in Idaho
Where this data comes from
26 measurements from 1 monitoring station, 2012–2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Bureau of Reclamation
1119USBR_WQX26 samples · 2012–2017
Analytical methods
- Phosphorus by Single Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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