Southern Mozingo Rservoir Lake
Southern Mozingo Rservoir Lake in Nodaway County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 60 µg/L. Surface area: 1009 acres.
- Typical in August
- 82°F
- Area
- 1,009 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Why Southern Mozingo Rservoir Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: 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 Southern Mozingo Rservoir Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
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.
Southern Mozingo Rservoir Lake is a 1,009-acre lake in Nodaway County, Missouri. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2023-12-19. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Southern Mozingo Rservoir Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 60 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 60 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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
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Planning a trip? Cabins and lodging at Southern Mozingo Rservoir Lake → · more Missouri lake trips
Water Temperature
Southern Mozingo Rservoir Lake typically sits around 82°F at the surface in August. Summer average is about 79°F. 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.
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,009 acres |
| Public Access | Yes |
No bathymetric survey has been published for Southern Mozingo Rservoir Lake, so its depth is not documented here.
Recreation & Access
- Mozingo Lake (Maryville)Public
- Mozingo Lake (Maryville)Public
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
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 |
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)
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.
Graded lakes near Southern Mozingo Rservoir Lake
Southern Mozingo Rservoir Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Nodaway County
Frequently asked questions about Southern Mozingo Rservoir Lake
Where is Southern Mozingo Rservoir Lake?
- Southern Mozingo Rservoir Lake is a lake in Nodaway County, Missouri. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Southern Mozingo Rservoir Lake?
- Southern Mozingo Rservoir Lake in Nodaway County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 60 µg/L. Surface area: 1009 acres.
Is Southern Mozingo Rservoir Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Southern Mozingo Rservoir Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Southern Mozingo Rservoir Lake?
- Southern Mozingo Rservoir Lake typically sits around 82°F at the surface in August, from 14 EPA Water Quality Portal field readings (2022–2023). That is a typical value for the month, not a live reading.
Are there boat ramps on Southern Mozingo Rservoir Lake?
- Southern Mozingo Rservoir Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Mozingo Lake (Maryville), Mozingo Lake (Maryville). Public access is listed as yes.
Explore Southern Mozingo Rservoir Lake across LakeGrade
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Where this data comes from
13 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Missouri Water Science Center
USGS-MO13 samples · 2022–2023
Analytical methods
- Nutrients, wu, WCA,persulfate,CF
- YSI EXO turbidity sensor, FNU
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory