Cty E Pond
Ozaukee County, WisconsinMesotrophic
Cty E Pond comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
Mesotrophic conditions dominate at Cty E Pond: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. Cty E Pond is small — 2 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Within Ozaukee County's 9 graded lakes, Cty E Pond ranks 5 — below the local median, though not at the bottom.
No invasive species are currently listed at Cty E Pond — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Cty E Pond, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-08-14. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.3 ft. Phosphorus level: 33.6 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.3 ft | B |
| Phosphorus | 33.6 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 2 acres |
Location
County Ranking
Ranked #5 of 9 lakes in Ozaukee County
Cleaner Lakes Within 30 Miles
Cty E Pond holds Grade B. 5 nearby lakes hold higher grades.
- AGreen LakeWashington County · 6.7 mi · Higher grade (B → A)
- ALake EllenSheboygan County · 7.7 mi · Higher grade (B → A)
- AForest LakeFond du Lac County · 9.1 mi · Higher grade (B → A)
- BRandom LakeSheboygan County · 3.3 mi · Higher overall water quality score
- BSandhill LakeOzaukee County · 6.5 mi · Higher overall water quality score
Nearby Lakes in Ozaukee County
More Wisconsin Lake Rankings
State Parks Near Cty E Pond
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Most recent sample: 2024-08-14
Monitoring stations: 1