Agricultural chemical dealers store, mix or blend, and distribute large quantities of dry and bulk liquid fertilizer and bulk and packaged pesticides. In practice, the bulk storage rules cover the loading of the products into storage, the mixing or blending, and the loading out of the products. The dealers incorporate a variety of housekeeping practices into the various activities of their operation. Data collected as part of the Agriculture Chemical Cleanup Program (ACCP) indicate that a significant number of agrichemical dealerships continue to impact ground water at their facilities. This trend is of particular concern because the data show ground water impacts occurred after the extensive secondary containment rules for bulk liquid agrichemicals were in place. It also occurred despite the Department’s serious inspection efforts to assure compliance with the containment rules.