Southern Mozingo Rservoir Lake is a 1,009-acre productive, nutrient-rich eutrophic lake in Nodaway County, Missouri. Water quality is graded C based on 1 sampling years through 2022. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 4 other monitored lakes in Nodaway County, Southern Mozingo Rservoir Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2022-07-22. Grade methodology: LakeGrade methodology.
Watch Southern Mozingo Rservoir 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
No clarity data. Phosphorus level: 40 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 40 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,009 acres |
| Public Access | Yes |
Where to stay near Southern Mozingo Rservoir Lake
Compare lakeside cabins, hotels, and vacation rentals near Southern Mozingo Rservoir Lake in Nodaway 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 Southern Mozingo Rservoir 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 Southern Mozingo Rservoir Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Southern Mozingo Rservoir Lake — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Missouri’s top lakes →
Fishing Southern Mozingo Rservoir Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.085 m/yr | 4 |
| Phosphorus | ↑ Improving | -2.87 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -5.88 µg/L/yr | 5 |
Recreation & Access
Water Temperature
Southern Mozingo Rservoir Lake averages about 79°F at the surface in summer, usually warmest in Aug (about 82°F) and coldest in Sep (about 77°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 14 field readings (2022–2023) via the EPA Water Quality Portal.
Location
County Ranking
Ranked #1 of 5 lakes in Nodaway County
Nearby Lakes in Nodaway County
Explore Southern Mozingo Rservoir Lake across LakeGrade
More Missouri Lake Rankings
Other Grade C Lakes in Missouri
Eutrophic Lakes in Missouri
Compare Southern Mozingo Rservoir Lake With Nearby Lakes
More records, surveys & data sources
Reservoir Info (USACE NID)
Southern Mozingo Rservoir Lake is a man-made reservoir impounded by the Mozingo Creek Dam (completed 1992), built primarily for water supply on the MOZINGO CREEK; earth-type dam, 77 ft tall and 2,735 ft long.
- Surface area
- 1,009 ac
- Normal storage
- 1,275 ac-ft
- Max storage
- 1,275 ac-ft
- Drainage area
- 20.92 sq mi
- Hazard class
- High
- Owner
- CITY OF MARYVILLE
All listed purposes: Water Supply;Recreation;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID MO12277 · Operator website · Matched by proximity (0.52 km)
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 Southern Mozingo Rservoir Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Pleasant View Addition WwtfMaryville · 1.4 mi away · NPDES MO0131393Recent violation
- Scout Ridge Estates WwtfMaryville · 4.1 mi away · NPDES MO0127981Recent violation
- Bolder Industries MaryvilleMaryville · 3.4 mi away · NPDES MO0136808
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: 2022-07-22
Monitoring stations: 1