Pomme de Terre Lake
Hickory County, WisconsinHypereutrophic
Pomme de Terre Lake is a 7,820-acre highly nutrient-loaded hypereutrophic lake in Hickory County, MO. Water quality is graded F based on 3 sampling years through 2022. Compared to the 9 other monitored lakes in Hickory County, Pomme de Terre Lake ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-05-31. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1 ft of visibility. Phosphorus level: 140 µg/L. Chlorophyll-a: 360.5 µg/L. Trophic State Index: 80.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 ft | F |
| Phosphorus | 140 µg/L | F |
| Chlorophyll-a (Algae) | 360.5 µg/L | F |
| Trophic State Index (TSI) | 80 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 7.8K acres |
Location
County Ranking
Ranked #10 of 10 lakes in Hickory County
Cleaner Lakes Within 30 Miles
Pomme de Terre Lake holds Grade F. 5 nearby lakes hold higher grades.
- CPomme de Terre L. LakeHickory County · 3.4 mi · Two grade letters higher (F → C)
- DPomme de Terre LakeHickory County · 0.4 mi · Higher grade (F → D)
- DPomme de Terre L. Central Arm LakeHickory County · 2.5 mi · Higher grade (F → D)
- DPomme de Terre LakeHickory County · 5.2 mi · Higher grade (F → D)
- DPomme de Terre L. LakeHickory County · 3.6 mi · Higher grade (F → D)
Nearby Lakes in Hickory County
More Wisconsin Lake Rankings
Other Grade F Lakes in Wisconsin
St. Louis County · Clarity: 1.6 ft
Jackson County · Clarity: 2 ft
St. Charles County · Clarity: 2.3 ft
St. Francois County · Clarity: 1.1 ft
Saline County · Clarity: 2.3 ft
Polk County · Clarity: 1.2 ft
Hypereutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Pomme de Terre Lake is a man-made reservoir impounded by the Pomme De Terre Dam (completed 1961), built primarily for flood risk reduction on the POMME DE TERRE RIVER; rockfill-type dam, 155 ft tall and 4,630 ft long.
- Surface area
- 7,820 ac
- Normal storage
- 230,000 ac-ft
- Max storage
- 650,000 ac-ft
- Drainage area
- 611 sq mi
- Hazard class
- High
- Owner
- USACE - Kansas City District
All listed purposes: Flood Risk Reduction;Fish and Wildlife Pond;Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID MO30201 · Operator website
EPA Impairment Status
Pomme de Terre Lake 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_7238.00 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-05-31
Monitoring stations: 1