Exhibit 11 - Concentration of Nitrate Nitrogen, Phosphorus, and Ammonia at the Berryville Sewage Treatment Plant (STP) outfall since January 1997 to August 2000.

The Health of the Shenandoah River in Clarke County: The FOSR Water Testing Program.

Exhibit 11 - Concentration of Nitrate Nitrogen, Phosphorus, and Ammonia at the Berryville Sewage Treatment Plant (STP) outfall since January 1997 to August 2000.