Madden Welding Ser is a superfund site located at Pine & Coal Sts, Shamokin, PA 17872. The Environmental Protection Agency (EPA) identifies sites such as Madden Welding Ser 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. Madden Welding Ser 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.