The soil classifications indicate the soil texture and organic matter levels. The aerial survey maps give specific field information on soil series. Copies may be obtained at local NRCS offices. In addition, the ARP has completed detailed mapping of certain corn growing counties to determine where the combinations of soil texture and organic matter specified on all acetochlor labels may exist. These maps do not include depth to groundwater data due to extreme seasonal variability.
Most herbicides have the potential for moving into ground water.
For acetochlor, the depth to ground water restriction only applies if the soil texture and organic matter level criteria have also been met. These people are probably the most knowledgeable source of information on location of ground water and aquifers. Most well drillers keep logs on local aquifers and drilling depths. Copyright 1995-2001 Acetochlor Registration Partnership. See notice on Home Page.