[3] Meeker Run has a discharge of 320 gallons per minute during average flow conditions.

The pH of the stream during average flow conditions is 4.37 and the concentration of aluminum is 0.260 milligrams per liter.

[4] The water quality of Meeker Run is considered to be "severe" (a rating worse than "very poor") in both average and high flow conditions.

However, the stream only significantly affects the water quality of Heberly Run during high flow conditions.

[4] A total of 0.96 miles (1.54 km) of Meeker Run and 0.55 miles (0.89 km) of its unnamed tributary are considered by the Pennsylvania Department of Environmental Protection to be impaired by atmospheric deposition due to pH and metals.

[3] The concentration of dissolved organic carbon near the headwaters of Meeker Run is 15.0 milligrams per liter.

[4] Wetlands such as marshes and fens are located in the upper reaches of the Meeker Run watershed.

[3] The macroinvertebrate community of Meeker Run is considered to be the worst of several streams in the watershed of East Branch Fishing Creek.