Aquatic Invasive Species
Contact information
For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
Clean Boats, Clean Waters Contacts

Watercraft Inspection Results

Location:

Boats Inspected (Boats Inspected:2004=6214,2005=30240,2006=36685,2007=39821,2008=57664,2009=63950,2010=86391,2011=106063,2012=110172,2013=116667,2014=126548,2015=135392,2016=148073,2017=150636,2018=144569,2019=150224,2020=133218,2021=150129,2022=137232|)

People Contacted (People Contacted:2004=11470,2005=62253,2006=82194,2007=78232,2008=121540,2009=135714,2010=185947,2011=228421,2012=232929,2013=252259,2014=263705,2015=284764,2016=309933,2017=304698,2018=301510,2019=312720,2020=281181,2021=309463,2022=273254|)

Hours Spent (Hours Spent:2004=1990.00,2005=10827.50,2006=18888.50,2007=25990.97,2008=35682.19,2009=40385.3030,2010=50405.76,2011=59046.84,2012=60989.4610,2013=71177.34666666666333,2014=75667.752330,2015=82073.5420,2016=85093.8790,2017=90506.10,2018=86296.2970,2019=91052.1870,2020=73976.9560,2021=86470.85999999999999,2022=85207.8866666670|)

Hours Spent - Paid vs. Volunteer (Paid Hours:2008=23235.84,2009=27287.3230,2010=35210.18,2011=43045.45,2012=46095.4830,2013=56376.49666666666333,2014=61587.662330,2015=69097.3320,2016=73271.3290,2017=79156.46,2018=75725.7370,2019=80378.6520,2020=65519.6860,2021=76295.90999999999999,2022=75525.9766666670|Volunteer Hours:2008=12446.35,2009=13097.98,2010=15195.58,2011=16001.39,2012=14893.9780,2013=14800.85,2014=14080.09,2015=12976.21,2016=11822.55,2017=11349.64,2018=10570.56,2019=10673.5350,2020=8457.27,2021=10174.95,2022=9681.91|)

Note: for the first few years, the Clean Boats form only asked for total hours. Later, most boat inspectors used the newer form which asked for Paid vs. Volunteer.