News: BDR Beadell Resources Announces Board Restructuring and Mining Contract, page-82

Thankyou colinchi,

The dams appear to be located within the dewatering cones for the pits. It appears therefore that the dams would provide a continuous recharge into the pits, which the pumps have to continually keep dewatering. This is stupid hydrogeology, and expensive recycling of water.

In this climate, the site does not need dewatering dams to try to hold the water. This water will NEVER evaporate.
The mine needs recharge ponds close to the Rio.

Why did BDR not locate recharge ponds close to the river so that the muddy water from the ponds would recharge the Rio Amapari instead,  through groundwater seepage?  

The trick is to find a location where the substrate to a recharge pond is gravel or porous sand, so that the water can seep away.

Am I missing something here?
Considering the way the Rio
a) cuts through the hilly terrain, and
b) does not have an extensive flood plain, and
c) does not meander,
I suspect the banks of the Rio here are composed of coarse gravels. (The river water flow still has high energy)
Now is this what is needed as a base for a recharge pond?​

One cannot discharge mine-water directly into the river because of the muddy condition of the water. With this high  rainfall, I guess that any acid mine water put into the recharge pond, would be heavily diluted.

Sheeez!