September 2020:
Results of Maintenance performed on Fall Brook AMD
Treatment Plants.

In June of this year, Signor Brothers Contracting, under the direction of Neil Wolfe of Hedin Environmental, cleaned the limestone beds associated with both the north and south treatment systems. Water samples taken August 12, 2020 indicate significant improvement in water quality as a result of this maintenance. The discharge for the North System has a pH reading of 7.98 and Alkalinity of 122. The discharge for the South System (099) has a pH reading of 7.73 and Alkalinity of 87

The limestone bed after the dozer pushed the material to the perimeter. The tumbling action with the water remaining in the bed cleaned the stone. They are drawing on the water collected in this bed to flush the stone in the next bed.

Starting to prepare this bed for the dozer. You can see how corrupted the stone is prior to the tumbling action and flushing. They are taking the beds down as close to the base layer as possible without compromising the integrity of the lining.

Shows the discharge pipe and the polluted water entering the flush pond.