Bee Tree Lake
St. Louis County, Missouri9 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Impaired · Mercury
- Public access
- Limited data
Bee Tree Lake in St. Louis County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 9 acres.
- Area
- 9 acres
- Public access
- Yes
Stays via Stay22
Stays near Bee Tree Lake
Compare lakeside cabins, hotels, and vacation rentals near Bee Tree Lake in St. Louis 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.
Top-rated places to stay near Bee Tree Lake
Prices for Sep 11–13, 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 Missouri’s top lakes →
Watch Bee Tree Lake’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Why Bee Tree Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Bee Tree Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by Missouri DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Bee Tree Lake is a 9-acre lake in St. Louis County, Missouri. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2023-10-17. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Bee Tree Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Water quality measurements for Bee Tree Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 9 acres |
| Public Access | Yes |
No bathymetric survey has been published for Bee Tree Lake, so its depth is not documented here.
Fishing Bee Tree Lake
Reservoir Info (USACE NID)
Bee Tree Lake is a man-made reservoir impounded by the Bee Tree Lake Dam (completed 1972), built primarily for recreation on the TR TO MERAMEC RIVER; earth-type dam, 18 ft tall.
- Surface area
- 9 ac
- Normal storage
- 40 ac-ft
- Max storage
- 87 ac-ft
- Drainage area
- 180 sq mi
- Hazard class
- High
- Owner
- ST. LOUIS COUNTY
Source: USACE National Inventory of Dams, NID ID MO31378 · Operator website
EPA Impairment Status
Bee Tree Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MO_7309.00 · Official waterbody report
Regulated Pollution Sources Nearby
10 EPA-permitted facilities operate within about 5 miles of Bee Tree Lake under Clean Water Act (NPDES) discharge permits, including 3 classified by the EPA as major dischargers. 4 facilities have a reported Clean Water Act violation in the past three years.
- Ameren Missouri - Meramec Energy CenterSt. Louis · 0.6 mi away · NPDES MO0000361MajorRecent violation
- Rcsd Kimmswick WwtpKimmswick · 3.2 mi away · NPDES MO0106461MajorRecent violation
- Msd Lower Meramec WwtpSt. Louis · 1.3 mi away · NPDES MO0127949Major
- Clyde Hamrick Elementary School WwtpImperial · 3.3 mi away · NPDES MO0138657Recent violation
- Moawc, Meramec PlantSt. Louis · 3.9 mi away · NPDES MO0001279Recent violation
- Msd, Lower Meramec WwtfSt. Louis · 0.3 mi away · NPDES MO0100978
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Bee Tree Lake
Bee Tree Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in St. Louis County
Frequently asked questions about Bee Tree Lake
Where is Bee Tree Lake?
- Bee Tree Lake is a lake in St. Louis County, Missouri. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Bee Tree Lake?
- Bee Tree Lake in St. Louis County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 9 acres.
Is Bee Tree Lake safe to swim in?
- The letter is not a swimming clearance. Bee Tree Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Explore Bee Tree Lake across LakeQuality
Planning a trip around Gateway Arch?
Bee Tree Lake is about 17 miles from Gateway Arch National Park. 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 Gateway Arch →More Missouri Lake Rankings
Other Lakes in Missouri
Where this data comes from
3 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Missouri Dept. of Natural Resources
MDNR3 samples · 2023
Analytical methods
- Depth, Secchi disk in meters
- Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)