Spring Lake

Spring Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Spring Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of 37 ft puts Spring Lake in the middle of Wisconsin's depth distribution. The lake is compact at 50 acres, with partial shoreline records and little volume to buffer nutrient inputs. Within Waushara County's 32 graded lakes, Spring Lake ranks 22 — below the local median, though not at the bottom.

Spring Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Bass fishing is part of the appeal: the species list runs to 4, anchored by largemouth and/or smallmouth bass. Public access is available — the lake is on the Wisconsin DNR public-access list. 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.