Willow Creek Reservoir is a highly nutrient-loaded hypereutrophic lake in Sarpy County, Nebraska. Water quality is graded D based on 2 sampling years through 2024. Compared to the 6 other monitored lakes in Sarpy County, Willow Creek Reservoir ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Nebraska DNR, last sampled 2024-09-05. Grade methodology: LakeGrade methodology.
Watch Willow Creek Reservoir water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 1.5 ft of visibility. Phosphorus level: 96.7 µg/L. Chlorophyll-a: 66.4 µg/L. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 ft | F |
| Phosphorus | 96.7 µg/L | D |
| Chlorophyll-a (Algae) | 66.4 µg/L | F |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Willow Creek Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Willow Creek Reservoir in Sarpy County, Nebraska — 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 Willow Creek Reservoir
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 to Willow Creek Reservoir?
Get lake water-quality report cards plus the best cabin & lodging deals near Willow Creek Reservoir — straight to your inbox. No spam, unsubscribe anytime.
Fishing Willow Creek Reservoir
Location
County Ranking
Ranked #3 of 7 lakes in Sarpy County
Cleaner Lakes Within 30 Miles
Willow Creek Reservoir holds Grade D. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Sarpy County
Explore Willow Creek Reservoir across LakeGrade
More Nebraska Lake Rankings
Other Grade D Lakes in Nebraska
Hypereutrophic Lakes in Nebraska
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-05
Monitoring stations: 1