Newaygo and Muskegon county are located in the West Central  Michigan.  There are about 160,000 acres of farmland in Newaygo county which accounts for 29 percent of the total acreage. Prime farmland includes Capac loam, Cosad loamy sand, Marlette loam, Selfridge loamy sand and Tustin loamy sand.  In Muskegon, Nester soils are the most important agricultural soils.    Annual precipitation in the Newaygo county varies from 31.9 to 33.97 inches, which usually fall in April through September and is received during the growing season for most crops.  In Muskegon, annual precipitation is approximately 31.22 inches.  The most common row crops are corn, soybeans, and potatoes.  The close-growing crops are oats adn wheat.     A variety of pesticides including herbicides and insecticides  are used in croplands.  Among them are Atrizine,  Metolachlor and Metribuzin.

Pesticide losses from agricultural lands are affected by climate, soils, and tillage. Annual concentration and annual four-day maximum concentration of pesticide are used to assess the long- and short-term risk to water quality. Pesticide losses in runoff and percolation are used to assess the risk to surface and groundwater quality. The environmental risk of pesticide is also associated with pesticide properties such as toxicity and persistence. Select from the following to see a variety of scenarios: