Robin Hood Lake
Warren County, Missouri9 acresView mapDirections
Missouri DNR publishes the water-quality measurements for Robin Hood Lake. Here is what has been measured.
- Eutrophic
Robin Hood Lake in Warren County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 58 µg/L. Chlorophyll-a (algae): 20.7 µg/L. Surface area: 9 acres.
Robin Hood Lake is a 9-acre productive, nutrient-rich eutrophic lake in Warren County, Missouri. Overall water quality is declining over recent sampling years. Compared to the 15 other monitored lakes in Warren County, Robin Hood Lake ranks #16 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-14. Methodology: how these readings are compared.
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. Check local advisories before you swim.
Whether Robin Hood Lake is safe to swim in today is a call for the Missouri Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Robin Hood Lake
These are the measurements Missouri DNR publishes for Robin Hood Lake, 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 3 ft of visibility. Phosphorus 58 µg/L. Chlorophyll-a 20.7 µg/L. TSI 62.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 58µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 20.7µg/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. | 62 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Robin Hood Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Robin Hood Lake typically sits around 76°F at the surface in September. Summer average is about 81°F. Usually warmest in Jul (about 84°F) and coldest in Apr (about 60°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (60°F) to its warmest (84°F).
Typical surface water temperature by month, from 93 field readings (2010–2024) via the EPA Water Quality Portal. See the full Robin Hood Lake water temperature breakdown →
Lake Details
Surface area
9 acres
No bathymetric survey has been published for Robin Hood Lake, so its depth is not documented here.
Stays via Stay22
Stays near Robin Hood Lake
Compare lakeside cabins, hotels, and vacation rentals near Robin Hood Lake in Warren County, Missouri — 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 Robin Hood Lake are listed below.
Top-rated places to stay near Robin Hood Lake
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Fishing Robin Hood Lake
Water Quality Trend: Worsening
Based on 5 years of monitoring (2020–2024).
Water clarity
Worsening5 years
Phosphorus
Worsening+6.52 µg/L/yr5 years
Chlorophyll-a
Improving-0.46 µg/L/yr5 years
Reservoir Info (USACE NID)
Robin Hood Lake is a man-made reservoir impounded by the Lake Robin Hood Dam (completed 1970), built primarily for recreation on the TR-WOLF CREEK; earth-type dam, 34 ft tall.
- Surface area
- 9 ac
- Normal storage
- 78 ac-ft
- Max storage
- 164 ac-ft
- Drainage area
- 460 sq mi
- Hazard class
- Low
- Owner
- LK SHERWOOD ESTATES HOA
Source: USACE National Inventory of Dams, NID ID MO10447 · Operator website
Nearby Lakes in Warren County
Frequently asked questions about Robin Hood Lake
Where is Robin Hood Lake?
- Robin Hood Lake is a lake in Warren County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Robin Hood Lake?
- Robin Hood Lake in Warren County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 58 µg/L. Chlorophyll-a (algae): 20.7 µg/L. Surface area: 9 acres.
Is Robin Hood Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Robin Hood Lake?
- Robin Hood Lake typically sits around 76°F at the surface in September, from 93 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
Explore Robin Hood Lake across LakeQuality
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Other Lakes in Missouri
Eutrophic Lakes in Missouri
Where this data comes from
69 measurements from 1 monitoring station, 2022–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Univ. of Missouri, Columbia
UMC69 samples · 2022–2024
Analytical methods
- Depth, Secchi disk in meters
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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.