Loeffler Oil Corp Sia is a superfund site located at 202 E Main St, Allendale, IL 62410. The Environmental Protection Agency (EPA) identifies sites such as Loeffler Oil Corp Sia because they pose or had once posed a potential risk to human health and/or the environment due to contamination by one or more hazardous wastes. Loeffler Oil Corp Sia is currently registered as an Archived superfund site by the EPA and does not require any clean up action or further investigation at this time.