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For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
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Bureau of Water Quality

Thunder Lake - Deep Hole (T37 R09e S29)

Annual Reports

The annual report displays Secchi, Chemistry and Temperature/D.O. profiles (where applicable) for a year.
2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1985 | 1984 | 1979



Narrative Report

Summarizes Secchi and Chemistry results for the most recent monitoring season. 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1985 | 1984 | 1979

Secchi Graph

Shows average summer (July-August) Secchi readings by year.
Secchi Graph

Trophic State Index Graph

Displays average summer (July-August) Trophic State Index (TSI) values for Secchi, Chlorophyll a and Total Phosphorus by year.
Trophic State Index (TSI) Graph

Data Download

Download Secchi, Total Phosphorus, Chlorophyll, Temperature and D.O. data all years (where available).
Data Download