Questions on how to dispose of old paint are the most frequent we receive. Latex (water based) paints can simply be dried out and put in the trash. Small quantities dry out quickly. For larger amounts line a cardboard box with plastic and pour the paint in. When paint hardens, box and all can go in the trash. To hasten drying, add crumpled newspapers, kitty litter, or a commercial paint hardener found at most home improvement stores. LATEX PAINT IS NOT ACCEPTED AT HAZARDOUS WASTE EVENTS. However, oil-based paints, stains and varnishes, and any paint containing lead, should be brought the St Croix County Clean Sweep events held in May and September each year.