Drexel City Reservoir South Nr. Dam is a 50-acre highly nutrient-loaded hypereutrophic lake in Bates County, Missouri. Water quality is graded F based on 3 sampling years through 2020.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2020-08-18. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 0.9 ft of visibility. Phosphorus level: 194 µg/L. Chlorophyll-a: 152.7 µg/L. Trophic State Index: 80.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.9 ft | F |
| Phosphorus | 194 µg/L | F |
| Chlorophyll-a (Algae) | 152.7 µg/L | F |
| Trophic State Index (TSI) | 80 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 50 acres |
Where to stay near Drexel City Reservoir South Nr. Dam
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Fishing Drexel City Reservoir South Nr. Dam
Water Temperature
Drexel City Reservoir South Nr. Dam averages about 82°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.
Typical surface water temperature by month, from 21 field readings (2012–2020) via the EPA Water Quality Portal. See the full Drexel City Reservoir South Nr. Dam water temperature breakdown →
Location
County Ranking
Ranked #1 of 1 lakes in Bates County
Cleaner Lakes Within 30 Miles
Drexel City Reservoir South Nr. Dam holds Grade F. 3 nearby lakes hold higher grades.
- FHarrisonville City LakeCass County · 20.1 mi · Higher overall water quality score
- FHarrisonville LakeCass County · 25.8 mi · Higher overall water quality score
- FRaintree LakeCass County · 28.4 mi · Higher overall water quality score
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Reservoir Info (USACE NID)
Drexel City Reservoir South Nr. Dam is a man-made reservoir impounded by the Drexel City Reservoir Dam South (completed 1968), built primarily for recreation on the TR-NORTH SUGAR CREEK; earth-type dam, 29 ft tall.
- Surface area
- 50 ac
- Normal storage
- 417 ac-ft
- Max storage
- 776 ac-ft
- Drainage area
- 550 sq mi
- Hazard class
- Low
- Owner
- CITY OF DREXEL
All listed purposes: Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID MO20213 · Operator website · Matched by proximity (0.06 km)
EPA Impairment Status
Drexel City Reservoir South Nr. Dam is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MO_7230.00 · Official waterbody report · Matched by proximity (0.35 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Drexel City Reservoir South Nr. Dam under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Drexel North WwtfDrexel · 1.4 mi away · NPDES MO0023655Recent violation
- Drexel South WwtfDrexel · 0.7 mi away · NPDES MO0023663
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
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-08-18
Monitoring stations: 1