Foxboro Lake
Franklin County, Missouri4 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
- Limited data
Foxboro Lake in Franklin County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 4 acres.
- Area
- 4 acres
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Watch Foxboro Lake’s letter
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Why Foxboro 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 Foxboro 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.
Foxboro Lake is a 4-acre lake in Franklin County, Missouri.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2021-10-12. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Foxboro Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Water quality measurements for Foxboro 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 | 4 acres |
No bathymetric survey has been published for Foxboro Lake, so its depth is not documented here.
Fishing Foxboro Lake
Reservoir Info (USACE NID)
Foxboro Lake is a man-made reservoir impounded by the Foxboro Lake Dam (completed 1974), built primarily for fish and wildlife pond on the TR-KRIETE CREEK; earth-type dam, 33 ft tall and 810 ft long.
- Surface area
- 4 ac
- Normal storage
- 84 ac-ft
- Max storage
- 132 ac-ft
- Drainage area
- 108.8 sq mi
- Hazard class
- Significant
- Owner
- WILLIAM KRUMMEL
All listed purposes: Fish and Wildlife Pond;Recreation.
Source: USACE National Inventory of Dams, NID ID MO31298 · Operator website
EPA Impairment Status
Foxboro 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_7382.00 · Official waterbody report
Regulated Pollution Sources Nearby
8 EPA-permitted facilities operate within about 5 miles of Foxboro Lake under Clean Water Act (NPDES) discharge permits. 4 facilities have a reported Clean Water Act violation in the past three years.
- Mfa Feed MillGerald · 1.2 mi away · NPDES MONX00579Recent violation
- Gerald WwtfGerald · 2.5 mi away · NPDES MO0045420Recent violation
- Rosebud North LagoonRosebud · 3.4 mi away · NPDES MO0091367Recent violation
- Rosebud South LagoonRosebud · 3.6 mi away · NPDES MO0091375Recent violation
- GeraldGerald · 1.3 mi away · NPDES MO0045390
- Newly Weds FoodsGerald · 1.5 mi away · NPDES MONX00935
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 Foxboro Lake
Foxboro Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Franklin County
Frequently asked questions about Foxboro Lake
Where is Foxboro Lake?
- Foxboro Lake is a lake in Franklin 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 Foxboro Lake?
- Foxboro Lake in Franklin County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 4 acres.
Is Foxboro Lake safe to swim in?
- The letter is not a swimming clearance. Foxboro Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Explore Foxboro Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Missouri Dept. of Natural Resources
MDNR2 samples · 2021
Analytical methods
- Depth, Secchi disk in meters
- 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)