Can the fertilizers, oil and gas I use around the house contaminate the groundwater?
A. It is possible to contaminate your well, or that of a neighbor, by improper use or disposal of chemicals. Normal use or following label instructions should not cause groundwater quality problems. Avoid heavy lawn chemical applications near a well. Avoid spraying on the well casing or cap. Avoid misuse or over-application. Studies have concluded that excessive use of lawn chemicals and fertilizers have caused groundwater contamination under certain soil and groundwater conditions. Waste oil and gasoline have been responsible for many contamination incidents. Small amounts of oil or gasoline dripping from vehicles onto the ground surface have not caused groundwater quality problems. Larger amounts, however, have been known to cause major problems, especially when released from leaking underground storage tanks. Certain soil types are more susceptible to contamination. The local hydrologic conditions, well construction and condition of your well also may play a major role in whether it
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