| 41. | There are two sources of acid mine drainage in the Birch Island Run watershed.
|
| 42. | Another form of abandoned mine drainage is alkaline mine drainage.
|
| 43. | Another form of abandoned mine drainage is alkaline mine drainage.
|
| 44. | There are five major sources of acid mine drainage in the Newport Creek watershed.
|
| 45. | Stony Creek also contributes acid mine drainage to Black Creek.
|
| 46. | Drury Run experiences acid mine drainage, mostly in the final.
|
| 47. | Shenandoah Creek is contaminated by sewage and mine drainage.
|
| 48. | It was affected by acid mine drainage and sedimentation.
|
| 49. | The first acid mine drainage discharge is at.
|
| 50. | Mine drainage in the watershed comes from seeps.
|
