Goose Creek Lake is a 379-acre cold, clear oligotrophic lake in Ste. Genevieve County, Missouri. Water quality is graded A based on 3 sampling years through 2024. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-08-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 9.9 ft. Phosphorus level: 9.5 µg/L. Chlorophyll-a: 2 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.9 ft | B |
| Phosphorus | 9.5 µg/L | A |
| Chlorophyll-a (Algae) | 2 µg/L | A |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 379 acres |
Where to stay near Goose Creek Lake
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Fishing Goose Creek Lake
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.56 m/yr | 2 |
| Phosphorus | → Stable | 0 µg/L/yr | 3 |
| Chlorophyll-a | ↓ Declining | +0.1 µg/L/yr | 3 |
Water Temperature
Goose Creek Lake averages about 82°F at the surface in summer, usually warmest in Jul (about 83°F) and coldest in Jun (about 81°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 12 field readings (2022–2024) via the EPA Water Quality Portal. See the full Goose Creek Lake water temperature breakdown →
Location
County Ranking
Ranked #1 of 1 lakes in Ste. Genevieve County
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Explore Goose Creek Lake across LakeGrade
Species activity outlook by water temperature and season
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Other Grade A Lakes in Missouri
St. Francois County · Clarity: 14.3 ft
St. Francois County · Clarity: 14.1 ft
St. Francois County · Clarity: 16.3 ft
Jefferson County · Clarity: 12.9 ft
Washington County · Clarity: 11.1 ft
Perry County · Clarity: 12 ft
Oligotrophic Lakes in Missouri
More records, surveys & data sources
Reservoir Info (USACE NID)
Goose Creek Lake is a man-made reservoir impounded by the Goose Creek Lake Dam (completed 1986), built primarily for recreation on the GOOSE CREEK; earth-type dam, 139 ft tall and 1,070 ft long.
- Surface area
- 379 ac
- Normal storage
- 13,782 ac-ft
- Max storage
- 13,782 ac-ft
- Drainage area
- 6.96 sq mi
- Hazard class
- High
- Owner
- GOOSE CREEK LAKE TRUSTEES, INC
Source: USACE National Inventory of Dams, NID ID MO31743 · Operator website
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Goose Creek Lake under Clean Water Act (NPDES) discharge permits. 3 facilities have a reported Clean Water Act violation in the past three years.
- Goose Creek WwtfFrench Village · 1.2 mi away · NPDES MO0120430Recent violation
- 6100 Building WwtfFrench Village · 2.1 mi away · NPDES MO0125130Recent violation
- Chateau Sainte Genevieve WineryBloomsdale · 2.5 mi away · NPDES MO0140651Recent 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)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-08-13
Monitoring stations: 2