Hawthorne Hills Pond

The LakeGrade rubric puts Hawthorne Hills Pond at a C: clarity readings still being added, 58 µg/L of phosphorus, and a TSI of 63 signal an intermediate trophic state. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

At a TSI of 63, Hawthorne Hills Pond reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake is compact at 6 acres, with partial shoreline records and little volume to buffer nutrient inputs. Within Ozaukee County's 9 graded lakes, Hawthorne Hills Pond ranks 5 — below the local median, though not at the bottom.

An invasive species record — Curly-Leaf Pondweed — has been logged at Hawthorne Hills Pond; Wisconsin DNR maintains the official infested-waters list. The state fisheries records do not list documented species for Hawthorne Hills 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.