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LakeQuality
D
Franklin County, Missouri

Lake Serene

Grade DPoor · 2.6 ft clarity

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Eutrophic

Lake Serene is a 65-acre productive, nutrient-rich eutrophic lake in Franklin County, Missouri. Water quality is graded D based on 3 sampling years through 2024. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 4 other monitored lakes in Franklin County, Lake Serene ranks #4 for water quality.

Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-22. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Compare the safest swimming lakes near St. Louis

Water Quality Grade: D, Poor

Very murky, less than 2.6 ft of visibility. Phosphorus level: 39.5 µg/L. Chlorophyll-a: 13.6 µg/L. Trophic State Index: 59.

MetricValueGrade
Water Clarity (Secchi Depth)2.6 ftF
Phosphorus39.5 µg/LC
Chlorophyll-a (Algae)13.6 µg/LC
Trophic State Index (TSI)59Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Surface Area65 acres
Public AccessYes

Where to stay near Lake Serene

Compare lakeside cabins, hotels, and vacation rentals near Lake Serene in Franklin 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.

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Fishing Lake Serene

Water Quality Trend: Improving

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.036 m/yr4
Phosphorus Improving-3.28 µg/L/yr4
Chlorophyll-a Declining+1.12 µg/L/yr4
See year-by-year chart →

Recreation & Access

1
Boat Landings
Yes
Public Access

Water Temperature

Lake Serene averages about 85°F at the surface in summer, usually warmest in Jul (about 88°F) and coldest in May (about 71°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
71°
Jun
85°
Jul
88°
Aug
83°
Sep
80°
Oct
Nov
Dec

Typical surface water temperature by month, from 24 field readings (20212024) via the EPA Water Quality Portal. See the full Lake Serene water temperature breakdown →

Location

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County Ranking

Ranked #4 of 5 lakes in Franklin County

Cleaner Lakes Within 30 Miles

Lake Serene holds Grade D. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Franklin County

More records, surveys & data sources

Reservoir Info (USACE NID)

Lake Serene is a man-made reservoir impounded by the Lake Serene Dam (completed 1957), built primarily for recreation on the TRIBUTARY OF CALVEY CREEK; earth-type dam, 42 ft tall and 1,175 ft long.

Surface area
65 ac
Normal storage
905 ac-ft
Max storage
913 ac-ft
Drainage area
1.47 sq mi
Hazard class
High
Owner
LAKE SERENE TRUSTEES

All listed purposes: Recreation;Flood Risk Reduction.

Source: USACE National Inventory of Dams, NID ID MO30542 · Operator website

Lake Size & Watershed

Watershed (drainage) area
1 sq mi
Mean depth (est.)
15.1 ft
Shoreline
1.5 mi
Elevation
515 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.

Regulated Pollution Sources Nearby

9 EPA-permitted facilities operate within about 5 miles of Lake Serene under Clean Water Act (NPDES) discharge permits. 5 facilities have a reported Clean Water Act violation in the past three years.

  • Ccsd Catawissa Wwtf
    Catawissa · 1.2 mi away · NPDES MO0115410
    Recent violation
  • Windfall Estates Mhp Wwtp
    Catawissa · 1.9 mi away · NPDES MO0081035
    Recent violation
  • Ccsd, Robertsville Wwtf
    Robertsville · 2.4 mi away · NPDES MO0115401
    Recent violation
  • Kober'S Mhp Wwtf
    Pacific · 2.6 mi away · NPDES MO0095583
    Recent violation
  • Cole Circle Mobile Home P
    Villa Ridge · 4.9 mi away · NPDES MO0054984
    Recent violation
  • Nike Elementary School
    Catawissa · 1.6 mi away · NPDES MO0090603

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

Public boat-access points from the USGS National Boat Ramps inventory

Most recent sample: 2024-09-22

Monitoring stations: 1

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