Preparation and oversight vital to store pesticides
A landscaping and irrigation company was recently fined for storing pesticides in the same area as combustible materials—a decision that could have led to an explosion and fire.
“Improper pesticide storage can expose both individuals and the environment to unintended harm,” said Fred Whitford, Ph.D., coordinator of the Purdue Pesticide Program, Purdue University. “A properly designed storage area and regular inspections are well worth the time and investment.”
Always follow government regulations and label requirements when storing pesticides. Whitford and the Weed Science Society of America have provided “core principles,” in the absence of more specific laws and label directions, for the storage of pesticides. The principles and more specific regulations should be second nature to employees of companies storing any amount of pesticide. These are also principles that an ag retailer should reinforce to a farmer customer taking custody of pesticides as the growing season progresses.
1) Location. A separate building is preferred—away from people, animals and sensitive areas. If a separate building is not possible, specify one area on the ground floor for pesticide storage. Select a location that is not prone to flooding and not on the upslope from water sources that could be affected by a spill or leak.
2) Security. Keep the building, storage area or cabinet locked, and limit access to properly trained individuals. Post required signs—at minimum, “Pesticides – Keep Out” and “No Smoking Allowed.”
3) Environment. The storage area must be well-lit, adequately ventilated and dry. The temperature range for liquid pesticides is usually 40° to 100°F, but there are many exceptions. The Storage and Disposal section of the label will provide important information about storage temperatures. Pesticides should always be stored off the floor, with liquid and “Danger—Poison” formulations on the lowest shelves and with large bags on pallets.
4) Isolation. Do not keep food, feed, seed, personal protective equipment (PPE) or anything other than a pesticide in the pesticide storage facility. Seal any floor drains; in some cases, removable caps can be used when sealing drains is impractical.
5) Containers. Pesticides must be stored tightly closed in their original container. Consider putting a tray under liquid pesticides that can provide containment. A pesticide in a leaking container must be transferred promptly to a new container and affixed with the original label or with key identifying information. If the label becomes illegible for any reason, obtain a replacement label immediately from the dealer, retailer or manufacturer. Mark containers with the date of purchase, and use older inventory first.