Many people think of ground water contamination as a problem caused by commercial and industrial activity. This is simply not true. The activities of the average homeowner can have a detrimental impact on our water supply. Pesticides and fertilizers when improperly used can have an adverse impact on drinking water supply.

The proper selection, storage and use of garden products are the primary measures that can be taken to prevent contamination. Chemicals must be kept in well ventilated, cool, dry locations. All chemicals must also be sealed in clearly labeled original leak proof containers. Spills must always be quickly contained, cleaned (or neutralized) and properly disposed of. Always apply a minimum amount of pesticides and fertilizers in accordance with the manufacturer's label instructions. Purchasing the proper amount of chemicals to complete the specific job will also minimize the amount to be disposed of later on.

Using more chemicals than what is necessary will cause more harm to the environment than good. Always use common sense and become familiar with the chemical products to determine the impact of use. Ask the question "is the product suitable for the application?" and always follow the label directions for use and disposal. Homeowners should always look for alternative "non" or less hazardous products for performing the job. For example, nitrate pollution can be prevented by using recommended amounts of slow release fertilizer instead of fast release fertilizer. Organic fertilizers are excellent because they break down slowly and release small quantities of nitrates. Cotton seed meal, bone meal and manure are examples of organic fertilizers. Consumers should also choose biodegradable insecticides and fungicides. These biodegradable chemicals break down into harmless substances in 2 to 21 days depending upon chemical composition.

Homeowners can play a significant role in the protection of our groundwater supply. By employing simple common sense measures, homeowners can safely use fertilizers and lawn chemicals without adversely impacting the environment and our precious groundwater supply.

For more information on "environmentally friendly" lawn care options residents should call the Cornell Cooperative Extension of Nassau County at 454-0900.