Red Fox Lake is a 13-acre productive, nutrient-rich eutrophic lake in Warren County, Missouri. Water quality is graded C based on 3 sampling years through 2020. Compared to the 15 other monitored lakes in Warren County, Red Fox Lake ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2020-09-16. Grade methodology: LakeGrade methodology.
Watch Red Fox Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3.3 ft of visibility. Phosphorus level: 40 µg/L. Chlorophyll-a: 10.3 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | D |
| Phosphorus | 40 µg/L | C |
| Chlorophyll-a (Algae) | 10.3 µg/L | C |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 13 acres |
Where to stay near Red Fox Lake
Compare lakeside cabins, hotels, and vacation rentals near Red Fox 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.
Top-rated places to stay near Red Fox Lake
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 Red Fox Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Red Fox Lake — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Missouri’s top lakes →
Fishing Red Fox Lake
Water Temperature
Red Fox Lake averages about 81°F at the surface in summer, usually warmest in Jul (about 84°F) and coldest in Apr (about 60°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 110 field readings (2010–2020) via the EPA Water Quality Portal. See the full Red Fox Lake water temperature breakdown →
Location
County Ranking
Ranked #10 of 16 lakes in Warren County
Cleaner Lakes Within 30 Miles
Red Fox Lake holds Grade C. 5 nearby lakes hold higher grades.
- AAlpine LakeWarren County · 3.4 mi · Two grade letters higher (C → A)
- BLake KonstanzWarren County · 2.7 mi · Higher grade (C → B)
- BWhippoorwill LakeWarren County · 0.6 mi · Higher grade (C → B)
- BCastlenovo LakeWarren County · 1.4 mi · Higher grade (C → B)
- BInnsbrook Lake Nr. DamWarren County · 1.6 mi · Higher grade (C → B)
Nearby Lakes in Warren County
Explore Red Fox Lake across LakeGrade
More Missouri Lake Rankings
Other Grade C Lakes in Missouri
Eutrophic Lakes in Missouri
More records, surveys & data sources
Reservoir Info (USACE NID)
Red Fox Lake is a man-made reservoir impounded by the Sherman Lake Dam (completed 1964), built primarily for recreation on the TR CHARETTE CREEK; earth-type dam, 33 ft tall.
- Surface area
- 13 ac
- Normal storage
- 135 ac-ft
- Max storage
- 230 ac-ft
- Drainage area
- 200 sq mi
- Hazard class
- High
- Owner
- WILLIAM SHERMAN
Source: USACE National Inventory of Dams, NID ID MO30518 · Operator website · Matched by proximity (0.72 km)
Regulated Pollution Sources Nearby
8 EPA-permitted facilities operate within about 5 miles of Red Fox Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 6 facilities have a reported Clean Water Act violation in the past three years.
- Pwsd #2, Wright City South WwtfWright City · 3.5 mi away · NPDES MO0140503MajorRecent violation
- Stewart Mhp WwtfWright City · 1.6 mi away · NPDES MO0119792Recent violation
- Maple Ridge Mhp WwtpWright City · 2.1 mi away · NPDES MO0105007Recent violation
- Wright City South WwtfWright City · 3.3 mi away · NPDES MO0023191Recent violation
- Pleasant Oak Mhp WwtpWright City · 4.1 mi away · NPDES MO0110680Recent violation
- Foristell Interim WwtpForistell · 4.7 mi away · NPDES MO0116114Recent violation
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.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-09-16
Monitoring stations: 1