However, it is devoid of fish life and is impaired by acid mine drainage.

[1][2] It flows north for a few hundred feet, almost immediately entering a valley.

[3] Little Tomhicken Creek is considered by the Pennsylvania Department of Environmental Protection to be impaired for aquatic life by acid mine drainage and pH.

[2] At 1:20 P.M. on July 8, 1997, the air temperature in the vicinity of Little Tomhicken Creek 0.52 miles (0.84 km) upstream of its mouth was 30 °C (86 °F).

This tunnel is the second-largest acid mine drainage discharge in the watershed of Catawissa Creek.

[2] Little Tomhicken Creek is in the United States Geological Survey quadrangle of Nuremberg.

[2] In December 2009, a passive treatment system was installed on the Oneida Number Three Tunnel.

[6] As of August 1, 2014, the East Union Township Sewer Authority has authorization to discharge material from the East Union Township Wastewater Treatment Plant into Little Tomhicken Creek.

[7] Little Tomhicken Creek is considered by the Pennsylvania Department of Environmental Protection to be a Coldwater Fishery.

[4] A 1997 report advised against further management actions on the creek due to its low water quality.

Due to acid mine drainage, no portion of the creek is able to support a usable fishery and it is devoid of any fish life.