Lone Star Reservoir
Fillmore County, Nebraska75 acresView mapDirections
Nebraska DEE publishes the water-quality measurements for Lone Star Reservoir. Here is what has been measured.
- Hypereutrophic
- Impaired · Algal growth
- Public access
Lone Star Reservoir in Fillmore County, Nebraska has water-quality measurements published by Nebraska DEE, shown here as reported. Water clarity: 2.1 ft visibility. Phosphorus: 740 µg/L. Chlorophyll-a (algae): 36.5 µg/L. Surface area: 75 acres.
Lone Star Reservoir is a 75-acre highly nutrient-loaded hypereutrophic lake in Fillmore County, Nebraska. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, NDEE, last sampled 2024-09-04. Methodology: how these readings are compared.
What Lone Star Reservoir is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming conditions
Readings onlyAlgae risk
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. Lone Star Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Whether Lone Star Reservoir is safe to swim in today is a call for the Nebraska Department of Environment and Energy and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lone Star Reservoir
These are the measurements Nebraska DEE publishes for Lone Star Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2.1 ft of visibility. Phosphorus 740 µg/L. Chlorophyll-a 36.5 µg/L. TSI 77.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 740µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 36.5µg/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. | 77 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Lone Star Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
75 acres
Public access
Yes
Listed by Nebraska DEE
No bathymetric survey has been published for Lone Star Reservoir, so its depth is not documented here.
Recreation & Access
- Lone StarPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Lone Star Reservoir
- Lone Star Recreation Area Campground0.4 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 Lone Star Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Lone Star Reservoir in Fillmore 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Lone Star Reservoir are listed below.
Top-rated places to stay near Lone Star Reservoir
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Fishing Lone Star Reservoir
Water Quality Trend: Improving
Based on 6 years of monitoring (2012–2024).
Water clarity
Improving6 years
Phosphorus
Improving-69.43 µg/L/yr2 years
Chlorophyll-a
Improving-3.58 µg/L/yr5 years
Reservoir Info (USACE NID)
Lone Star Reservoir is a man-made reservoir impounded by the Little Sandy Creek 61 (completed 2006), built primarily for flood risk reduction on the Walnut Creek; earth-type dam, 46 ft tall and 1,210 ft long.
- Surface area
- 75 ac
- Normal storage
- 502 ac-ft
- Max storage
- 2,822 ac-ft
- Drainage area
- 8.7 sq mi
- Hazard class
- Low
- Owner
- Little Blue Natural Resources District
Source: USACE National Inventory of Dams, NID ID NE02785 · Operator website · Matched by proximity (0.14 km)
EPA Impairment Status
Lone Star Reservoir 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.
Source: EPA ATTAINS assessment unit NE-LB1-L0050 · Official waterbody report
Nearby Lakes in Fillmore County
Frequently asked questions about Lone Star Reservoir
Where is Lone Star Reservoir?
- Lone Star Reservoir is a lake in Fillmore County, Nebraska. Its water-quality measurements are published by Nebraska DEE and shown on this page as reported.
What is the water quality of Lone Star Reservoir?
- Lone Star Reservoir in Fillmore County, Nebraska has water-quality measurements published by Nebraska DEE, shown here as reported. Water clarity: 2.1 ft visibility. Phosphorus: 740 µg/L. Chlorophyll-a (algae): 36.5 µg/L. Surface area: 75 acres.
Is Lone Star Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lone Star Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Are there boat ramps on Lone Star Reservoir?
- Lone Star Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lone Star. Public access is listed as yes.
Can I fish at Lone Star Reservoir?
- Lone Star Reservoir 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 Nebraska's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Lone Star Reservoir?
- Lone Star Reservoir has 1 public campground from USGS The National Map within 5 km, including Lone Star Recreation Area 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 Lone Star Reservoir across LakeQuality
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Where this data comes from
67 measurements from 1 monitoring station, 2012–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Nebraska Department of Environment and Energy
21NEB001_WQX67 samples · 2012–2024
Analytical methods
- Total Phosphorus After Block Digestion
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
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