According to a recent press release by The IU School of Public Health a testimony opposed to HR 1644 will directly affect mountain top coal mining. The testimony would block the implementation of stream protection buffer rules.
Streams and valleys are directly affected due to displacement following blasting by explosives. The blasting is effectively loosening dirt and rocks above coal prior to drag lines remove dirt and rock. Contaminates are then swept along by the water which includes metals, sulfates and chemicals.

Birth Records have assisted research to confirm that residents near the removal are at high risk (health related problems) comparable to people who live further away. Instances of lung cancer are greater within mountain top removal communities. Other diseases cited include kidney, lung and heart.

The author (Hendryx) has also published a further thirty studies in peer related journals detailing the health and environmental issues. The issues created affect Appalachian communities. Almost two million birth records studied within an 8 year time frame confirmed birth defects.

Mothers living in these mountain top areas while pregnant had higher risks of babies with birth defects. The most common being heart defects. The statistics were a disturbing 181% higher than mothers not within the area.

Dust from non-mining and mining localities was introduced to the lab. The dust extracted from a mining community exposed to lung cell lines was indicative of lung cancer development while the dust from the non mining community was not. Hendryx began research while at West Virginia University arriving at IU in 2013. He has called for more stringent rules to stop waste being dumped in to water. Claims were that the bill was in part a threat to human health.